US1867001A - Lock mechanism - Google Patents

Description

July 12, 1932.

W. F. DIESEL v LOCK MECHANISM FiledMay 1a, 1929 :5 Sheets-Shet .1

INVENIIOR WdlzamiTwssl lzIsATTO July 12, 1932. w. F. DIESEL 1,867,001"

LOCK MECHANISM Filed May 18,1929 SlSheets-Sheet 2 sl l 'wlmm 5% 22 6 f BY I 55 h L'sATToRW July 12,1932. w, F, DIESEL f 1,867,001

LOCK MECHANISM Filed May 18,1929 3 Sheets-Sheet 3 1 g u v I |H||IIIH 1 Hummus) INVENTOR BY W LSATTO EY I Patented July 12, 1932 entree; STATE s arsnr oFFI E;

WILLIAM F. DIESEL, OF ROCHESTER, NEW YORK, assienon. mosanennr &- GREENLEAE; 11m, OFROCHESTER, NEW'YORK, A CORPORATION or-nnw YORK,

LOCK MECHAJN ISM Application filed May 18;

The present" invention relates to a lock mechanism for guarding safes; vaults and other-compartments employed for protecting valuables-of various kinds.

One object of the invention is to provide improved means of the class desoribe'dembodying a lockmechanism inconjunction with control means therefor,'such as a timing mechanism,- normally held in check and adapted to be released through manipulation of'cert-ain' parts of'the mechanism for operation for a selected period whereby to efiect release of a guard for the bolt.

A further object of the invention is to provide in conjunction with a look a device which will automatically move to protecting position with respect to the bolt whenmoved to locking position, and'also to provide operating means'for releasing said device normally'heldin check by one ormore parts of the lock and'arrangedto be freed through manipulation thereof; 7

A further object of the invention is to provide in conjunction with a tumbler lock,

preferably ofthe combination type improved means for delaying releaseof the bolt after successful operation of the tumbler mechanism embodying a timing mechanism normally heldin check, and a. device to be re 0 leasedthereby after operation thereof for a selected" period, said device automatically assumin'g'a protecting position with respect to the bolt when the latter is moved to locking'position and the timingmechanism being under the control of the lock and. released thereby upon successfully operating the tum: bler mechanism;

A further object of the invention is to provide an improved lock control mechanism applicable to different types of existing combination locks and which can bereadily applied thereto with comparatively little expense, said mechanism being designedto delay release of thebolt for a given period after successfully. operating the combination.

To these andother ends the invention resides in certain improvements and combinations of parts, all as will be hereinafter more fully described, the novel features being 1929. Serial no. seaaso.

specification.

In the drawings: 1 Fig. l 'is a sectional plan of a locking mechanism embodying one form of invention; Fig. 2. is a sectional elevation taken on line 2a2a of Fig; 1;

Fig. 3 is a fragmentary part sectional plan pointed outin'thefclaims at the end of the sh'owing'the' device for guarding the bolt mechanism V v Fig. 4 is a-fragnientary-seotional elevation showing the guard in protecting "position with relation to 'the bolt;

F ig." 5 is a similar viewsh'owing the guard in release position; p

Fig.1 6 is a viewin elevation showing the lock and the keeper forthe bolt thereofias applied to a safe or other enclosure;

Fig.- 7 is a view inelevation of the lock proper'with the coverof the casing removed showing the bolt extended with the operating parts therefor in position to hold the timing mechanism in check; j I

Fig. 8' is asimilar view with the operating parts slightly shifted to free the timing mechanism for operation; v f

Fig. 9 is a View similar to Fig. 8 showing the bolt actuating member lowered into the recess of the operating disc in position to be actuatedby the latter; 7 p

F ig. 10 is a similar view with the disc rotated to position to effect release of the bolt.

Fig. 11 is a view in elevation lookingat the inner face of the cover plate for the ms; ing containing the tumbler mechanism on which is shown the motor operated arm for effecting release of the guard for the bolt;

F ig. 12 is a view similar to Fig. 11 withthe arm in and v 13 is a detailed the arm.

Similar reference numerals throughout the several views indicate the same parts.

The present invention is designed to afford a safe-guard holdups of bank vaults, safes, andother enclosures containing valuables of various kinds, by delaying opening of the safe fora moved to release position by the timing perspective view. of

position to effect release of the guard, I

particularly against daylight selected period after efli'ecting successful operation of the lock for controlling'the bolt work. In the present embodiment of the invention this is accomplished by providing guard or protecting meansfor one of the operating parts of the lock which controls the movement of the bolt, preferably the gate associated with the tumbler mechanism where the device is to be used with a combination for effecting their release, 1n which case release of the timing mechanism will be effected by a movable portion of the look upon operation thereof to a predetermined position. In other words, the invention contemplates the use of a lock of any suitable type having op-' erating or control means for the bolt which when in locking position will'be protected by the automatic operation of. a guard to besubsequently released by a timing mechanism which in turn is released by the movement of a portion ofthe lock to a predetermined position. In the present instance the guard is'in the form of a spring pressed plunger which moves into holding position with respect to the gate of a tumbler lock of the combination type when the bolt is extended and which when moved to said position serves as a means for holding in check the timing mechanism provided to effect release of the guard after the combination has been worked. By operating the combination the gate is permitted to shift sufiiciently to release the timing mechanismbut not enough to become operatively connected with the rotariy disc on the operating spindle of the loc Referring to the drawings, 10 represents a portion of a safe or vault, and 11 a door or closure therefor, to the inner face of which is secured by any suitable means a. frame or casing 12 as best shown in Fig. 1. A bolt 13 is carried by the casing and when in'locking position projects into a keeper 14 secured to the wall of the safe 10 as shown in Figs. l ancl'6. The bolt is guided in the end wall of the casing and also by an offset portion 15 resting on the bottom of the casingas shown in Fig. 7.

The lock shown is of the combination type and includes the usual knob and dial plate 16 and 17 respectively located on the outside of the closure. Disposed on the operating spindle 18 are a plurality of tumblers 19 and on the inner end of the spindle is keyed the operating disc 20 having a lug 21 for engaging the end of an arm 22 on the bolt for moving the latter from release to locking position. The disc is provided with a cam surface 23 for raising the gate or bolt operating mem ber 24 pivoted at 25 upon the bolt. The bolt is retracted to the position by engagement of the lug 21 on the disc with a shoulder 26 onthe gate when rotating the disc in a counter-clockwise direction from the position shown in Fig. 9. The gate carries a laterally projecting member 27 engaging the peripheral portions of the tumblers to hold the gate in release position when the com bination is destroyed, said member dropping intothe notches 28 of the tumblers upon successful operation of the combination. The shoulder of the gate is thus permitted to move into engagement with the cam portion 23 of the disc where it can. be engaged and operated by the lug on the disc. When the notches of the tumblers are all moved into registry with the projecting member 27 on the gate, a spring 29 will act to positively insure a downward movement of the gate from the position shown in Fig. 7 to that shown in Fig. 9. The spring however has an additional function as will appear herein-,

after. 1

The casing 12 has a cover plate 30 secured thereto and connected with said plate is a sec-, ond plate 31. The timing mechanism is located betweentsaid plates and comprises the usual spring motor and a suitable trainof gears as best shownin Figs. 1 and 2. The drum 32 is shown. partly in section in Fig. 3 and carries the driving spring 33 which is connected with the drum and with the drive shaft 34 in the usual manner. Theshaft has an extended portion 34a arranged to receive a key (not shown) for setting the timing mechanism for operation for any given period selected in accordance with they conditions under which it is desired to operate the locking mechanism. A train of gears op erated by the motor shaft 34 serves to drive the escapement wheel 35, the pallet for controlling the same being indicated at 36. The pallet is mounted to oscillate about the axis of the pivot 37 and is provided with a laterally extending finger 38 projecting throughan opening 39 in the plate 30,'Fig. 1, and is extended between the spring 29 and the inner end portion 40 of the gate 24, which when in theposition shown in Fig. 7 cooperates with the spring to hold the pallet against oscillation whereby to hold in check thetiming mechanism.

The particular means shown for protecting or guarding the bolt comprises preferably a plunger 41 guided in a bearing 42'carried by the plate 30 as indicated in Figs. 4 i

and 5. The plunger has a collar 43 thereon for engagement with the bearing to limit'the outward movement of the plunger. The gate or bolt control member 24 is recessed at 44 to receive the inner end of the plunger shown in Fig. 10

I 5 Fig. 11, to release 'when the safe is locked whereby to prevent dropping of thegate to the position shown in Fig. 9. The plunger is automatically moved to the protecting position shown in Fig. 4 preferably by a spring 45 having one end fixed on the plate 30 and the other engaging the outer end of the plunger for the purposeof urging it inwardly when the parts are in a predetermined relationship. Movement of the plunger inwardly is limited by a stop .46 on the'plate 30 which lies in the path vof the collar 43' and engages the latter as shown in Fig. 1 when the plunger is moved into the recess 44 to the position shown in 5 Fig. 4. Release of the plungeror movement thereof to the position shown in Figs. 3 and 5 is effected by the timing mechanism'through theoperation of an arm 47 fixed on the motor shaft 34. The arm carries a cam or wedgeshaped portion 48 for engaging the 1111161 face of the collar 43 to retract the plunger to the position shown in Fig. 5 on movement of the arm by the motor shaft from anypredetermined set position such as that shown in position as shown in Fig. 12. Movement of the arm to release the plunger is limited to the position shown in Fig. 12 by the contacting of a projection 49' on the arm with the plunger which preferably takes place before 'theimotor becomes -run down whereby'to insure sufficient power at all times to effect release of the plunger.

The spring 29 for holding the pallet controlling finger 38 in engagemnt with the -b 5 gate as shown :in Figure 7 is provided with a downwardly ofi'set portion 50 which rests on the gate. By successfully operating'the combination to bring the partsinto the relationship shown in Fig. 8 the spring will urge the gate downwardly until itis checked by the plunger 41, thus releasing the pa'llet con- "trol finger 38 which frees the timing mechanism for operation. The spring motor will then begin to rotate the shaft 34 to move the arm 47 upwardly until the cam 48 thereon engages the inner face of the collar 43 of the plunger to shift the latter to release position, after which the gate will drop to the position shown in Fig. 9. The knob 16 is then turned 9 to effect rotation of the disc 20 to the position shown in Fig. 10 during which time the lug 21 on the disc will retractthe bolt and permit the safe to be opened. Upon closing the safe door it can again be'locked by rotating the knob to move the disc in a clockwise direction as viewed in Fig. 10, during which time the lug 21 will engage the arm 22 and move the bolt to ext-ended looking position as shown in Fig. 9, after which 9 the knob is rotated in a reverse direction to destroy the combination as when the parts are inthe position shown in Fig. 7.

Means is providedbywhich to regulate the period of operation of the timing mechanism J in moving the arm 47torelease the gateholdand 12.

withdraw the screws =ingtplunger 41' in themanner described above. Any suitable means may be provided forthis purpose, but I prefer to use an adjustable stop pin 51 inthe path of the arm47'which can-be v screwed into any of a series of threaded openings 52 in the plate as shown in Figs. 11

By inserting the key mentioned the end 34a of the shaft 34 and turning it to rotate the arm 47 in a counter clockwise direction as viewed in Fig. 12,:the; arm can be brought into engagement'with the stop pin 51 in whatever position-it maybe above on located. In other words for a. relatively short period of operation of the timing mechanism the pin will be in the position shown in Figs. 11 and 12, but if it is desiredto-increase'the timerequired for openingthe safe after the combination has been successfully operated, the pin will be removed fromthe position shown and secured mom of the re-; maining holes 52. The particularpositionof the pin will of course depend on the timeiperiod selected which may be varied as desired. For the maximum period-the arm 47 may be given substantially a oomplete-revo-gm lution by omitting the pin'in which event the projection 49 on the arm will engagethe plunger on the side opposite to that shown in Fig. 12. In assembling the parts thepin can be set in any position desired become. advisable to change the period of operation ofthetiming mechanism the plates 30 and 31 and the mechanism-thereoncan e removed as a unit merelyby operating-a tool through openings 53 in the plate .31to .1100

54 which take intoflugs 55 on'the casing 12 to secure saidunit'to the casing. When this has been done the stop 51 can be secured within anyone of the'holes 52 desired. 1, While with the locking mechanism described herein it is intended primarily to use the protecting feature to-secure safes, vaults and the like for comparatively briefintervals duringbanking or business hours, such for i example as ten or fifteen minute periods after the combination is operated, it will be understood thatthe timing mechanismmay beadjusted to effect protection for relatively long periods where the conditions of operation so 116 demand. 7

In the operation of the vlocking'mech-anism, assuming that it is desired to keep the safe locked for the greater portion of the day the spring-45 will be automatically. moved 7 and if it should a,

l dial knob can then be operating disc 1. In mechanism of in the position shown present mechanism a to permit the gate to move to the position shown in Fig. 8. In this position of the parts the gate would ordinarily drop into the recessed portion of the operating disc as shown in Fig. 9, but in the present arrangement it is arrested by the guard 41. Its movement however has been suflicient to release the pallet control member 38 so that the timing mechanism is freed for operation. As long as the guard remains within the recess 44 it will prevent retraction of the bolt as will be understood, although been previously operated. Upon operation of the timing mechanism forthe period previously determined upon thecam portion 48 on the advanci motor operated arm 47 will. 7

0 I move into engagement with the collar 43 and will. withdraw the plunger from engagement with the gate to the position in dicated in Fig. 5. The gate will then immediately drop to the position shownin Fig. 9, both under the action ofgravity and the spring 29. The turned to rotate the 20 to the position shown in Fig; 10 thus effecting release of the bolt. After operatingth-e lock in the manner described, the plunger will be held in retracted position by the arm a? which at thistime is in Figs. 5 and 12. In this position of the parts the timing mechanism is rendered inactive and is disconnected from the lock proper which can be operated in the usual way and entirely independent of thetiming mechanism; However, when the arm is reset as shown in Fig. 11 and the safe locked the plunger will automatically return to protecting position with respect to the gate by moving into locking engagement therewith. It will be seen therefore that the ffords a safe guard particularly against daylight holdups by makin it impossible for anyone in control of the vaults or safes to open the same immediately upon demand by those attempting "locking mechanism will be more or less hazardous to those attempting to gain access to the contents of the safe who are not authorized to do so since it will be necessary for them to await operation of the timing mechanism, thus running the risk of being captured.

' I claim as my invention:

the class described,

the combination of a lock comprising a bolt and relatively movable cooperating parts for shlfting the bolt including an actuating memthe combination has.

her for said bolt connected therewith and a rotary operating device arrangedwhen rotated in one direction to cooperate with said member to effect release of the bolt and adapted when rotated in an opposite direction to move said actuating member to a non-cooperating position, a timing mechanism having a part engaged by said member when in said last mentioned position whereby the timing mechanism is held in check, a guard arranged for movement automatically into locking engagement with said actuating member when in said non-cooperating position and adapted to be released by the timing mechanism after operation thereof for a predetermined period, said rotary device being operable to permit said actuating member to shift relative to the'guard whereby to free the timing mechanism for operation to effect release ofthe guard.

2. In mechanism of the class described, the combination of a lock for safe doors and the like comprising a bolt, means operable from the exterior of the safe when the door is closed including a rotary element and an check, said actuating member being movable automatically to a position at which it will release said part upon movement of the rotary element to a predetermined position whereby to release the timingmechanism for operation, and a member actuated by the tim ing mechanism arranged after operation thereof for a predetermined period to release the guard whereby to free said actuating member for cooperation with the rotary element.

3. In mechanism of the class described, in combination, a bolt, a combination lock having relatively adjustable parts for operating the bolt, a guard arranged to move automatically into holding position with respect to one of said parts when adjusted to-a predetermined position whereby to prevent release of the bolt, timing mechanism arranged to be held in check by said part when in said position and adapted to be released thereby upon successfully operating the combination, and means actuated by the timing mechanism after operation for a predetermined period arranged to release the guard to permit operation of said parts to retract the bolt.

4;. In mechanism of the class described, in combination, a bolt, a combination lock having relatively adjustable parts for operating the bolt, one of said parts having an abutment thereon, a. spring pressed plunger arranged to move into engagement with said abutment when said last mentioned part is moved to a predetermined position whereby to prevent release of the bolt, and a timing mechanism for withdrawing said plunger after operation for a predetermined period, said timing mechanism being normally held in check by said last mentioned part when in said position and being released for operation upon successfully operating the combination.

5. In mechanism of the class described, in combination, a bolt, a combination lock having relatively adjustable parts for operating the bolt, one of said parts having an abutment thereon, a spring pressed plunger arranged to move into engagement with said abutment to prevent release of the bolt when said last mentioned part is moved to a predetermined position, a timing mechanism having a portion arranged to be engaged by said part when in said position, a spring engaging said portion and cooperating with said last mentioned part to hold the timing mechanism in check, and a member arranged to be operated by the timing mechanism and having a cam thereon for engaging the plunger to release the same, said timing mech anism being freed for operation upon successfully operating the combination.

6. In mechanism of the class described, the combination of a bolt, a combination lock having relatively adjustable parts for operating the bolt, a guard arranged to move automatically into holding position with re spect to one of said parts when said part is adjusted to a predetermined position whereby to prevent release of the bolt, a spring associated with said last mentioned part, timing mechanism arranged to be held in check by said spring and said part when the latter is in said predetermined position and adapted to be released thereby upon successfully operating the combination, and means actuated by the timing mechanism after ope-ration for a predetermined period arranged to release the guard to permit operation of said parts to retract the bolt.

7. In mechanism of the class described, the combination of a bolt, a combination lock having relatively adjustable parts, one comprising an operating part for the bolt and having an abutment thereon, a spring pressed plunger arranged to move into engagement with said abutment when said operating part is moved to a predetermined non-operating position, a spring associated with said last mentioned part for moving it to operating position upon movement of the plunger to release position, and a timing mechanism for withdrawing said. plunger after operation for a predetermined period, said timing mechanism being normally held 1n check by said spring and said last mentioned part and released thereby upon successfully operating-'1 the combination.

8. In mechanism of the. classidescribed, the combination of a movable locking device,- a combination lock having relatively movable parts, one comprisingan actuating part timing mechanism arranged after operation I for a predetermined. period to shift said element whereby to release saidacuating part, and 'yieldable means cooperating with said part when in said non operating position to hold'the timing mechanism'in check,isaid part automatically releasing the timing mechanism upon successfullyoperating the combination, said actuating part being automatically returned to operating position with respect to the combination'lock whenthe timing mechanism has completed said period of operation. r

9. In mechanism of the class described, the combination of a lockcomprising a securing device, an operating element movable to actuate said device, a combination lock for controlling said element comprising tumblers and a spindle provided with a control member arranged to receive said element to eifect operation thereof when the tumblers are in a predetermined position, .said'control member having a portion for moving said element to a non-operating position when the combination'is destroyed, a guard movable automatically to secure said ment in non-operating position when the combination lock is moved to locking position, normally inoperative timing mechanism arranged upon release and after operido its

operating eleation for a predetermined period to shift said iii;

When the combination is destroyed and freed by a movement of the operating element when the combination is successfully operated, said operating element being held by the guard against movement into position to be ac-" said control member subsequent to 125 tuated by the successful operation of the combination and until the timing mechanism is operated for said predetermined period.

10. In combinatioma door, lock mechanism comprising a securing device having an operating element and a combination lock including a spindle having an actuating partfor said operating element, said actuating part operating when the combination is destroyed to move said element from operating to non-operating position, a guard operating automatically to engage andhold said operating element at non-operating position when moved thereto, and timing mechanism arranged after operation for a predetermined m period to move the guard to effect release of said operating element, the timing mechanism having a part for holding it in check engaged by the operating element when the latter is moved to'non-operatingposition,

5 said actuating part permitting of a slight movement of the operating element suificient to release the timing mechanism upon successfully operating the combination with the operating element held against return to nor- 9 mal position by said guard.

11. In combination, a door, lock mechanism comprising a securing device having an operating element and a combination lock including a spindle having an actuating part for said operating element, said actuating part operating when the combination is destroyed to move said element from operating to non-operating position, a control unit for said operating element detachably associated so with said combination lock comprising timing mechanism disposed at one side of the combination lock, said timing mechanism having a part for holding it in check engaged and held by said operating element when the latter is moved to a non-operating position and released by the operating element upon successfully operating the combination, and a plunger extending substantially parallel to the axis of the spindle arranged to move automatically into position to hold the operating element at non-operating position when it is moved to said position, said timing mechanism serving after operation for a pre- 8 determined period to shift the plunger whereby to release the operating elementfor return to operating positlon.

- WILLIAM F. DIESEL.

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