US1183767A - Collar-clamp. - Google Patents

Description

'0. E. RADTVKE. n COLLAR CLAMP;y l APPLICATION FIL'EDJUNE 9. 1915.

' Patent-6d May16,.1916. L

gnomo/ lso OTTO E. RADTKE, OF AURORA, NEVADA.

COLLAR-CLAMP.

Application led June 9, 1915.

To all whom t may concern Be it known that I, OTTO E. RADTKE, a citizen of the United States, residing at Aurora, in the county of Mineral and State of Nevada, have invented certain new and use'- ful Improvements in Collar-Clamps, which the following is a specification.

The purpose of this invention has been to devise a simple, effective, and easily op-A erable supporting collar clamp for drilling machines.

In its preferred embodiment the clamp hereinafter more Afully described in detail is comprised of sections adapted to embrace or receive the column of the mining drill, suitable fastening means being employed at the opposite ends of said sections, whereby to effectively hold the clamp at a predetermined adjustment longitudinally of the drill column. The fastening means include gib and key devices so mounted upon the sections of the clamping collar that the latter may be quickly loosened and rigidly positioned b`y clamping action in respect to said column.

An especial object in view in the detail construction of the invention has been to so assemble and construct the fastening devices that accidental liability of displacement of the latter is entirely obviated.

With the above and other objects in view,

' this invention consists in the construction,

combination and arrangement of parts all as hereinafter fully described, claimed and illustrated in the accompanying drawing, wherein:

Figure 1 is a perspective view of a sup porting clamping collar embodying the essential features of the invention. Fig. 2 is a side elevation.

Throughout the following detail description, and on the several figures of the drawing, similar parts are referred to by like reference characters.

Referring to the drawing, and specifically describing the construction illustrated, A denotes the body of the clamping collar, the same consisting of opposing similarly formed sections 1 and 2. Sections 1 and 2 are provided at one end with short oifstanding apertured lugs 3 through which passes a bolt or similar fastening 5 located at one side of the device. At the opposite side of the body A of the device, the sections 1 and 2 are formed with relatively long o'standng arms 5 and 6, The arms 5 Specification of Letters Patent.

Patented May 1e, 191e. serial 110.133,08?.

-with corresponding slots, the outer portions of rwhich receive the gib 7 and key 8,' the innermost portions of which receive thef head portion 9 of a slidable clamping dog 9.-

The dog 9 might be said to be of T-shaped formation, the head of the dog being received in'the slots of the arms 5 and 6 as above described, and the central portion'of the dog being disposedinterlnediatethe sectionsl and 2 of the innermost surface curved to conform with the circumferential curvature of the drill column and to, vof course, also conform with the curvature ofthe inner walls of the' sections Aland 2which are designed to snugly embrace said colur'mi.'v At its opposite ends, the gib 7 `has an outwardly projecting eX- tension 7 and in like manner at its opposite ends the key 8 has inwardly projecting extension 9, both the key and the gib being of tapered formation to obtain the usual wedging coperation obtained in devices of this sort as commonly employed in the art.

Owing to the provision of the projections and 9 on the gib7 and key 8 respectively and the disposition of the dog 9 such that the head portion is received by the slots of the arms 5 and 6, it will be evident that the accidental displacement vof the members 7 and 8 as well as the member 9 is prevented it being impracticable to remove these members from the clamping collar while the parts are connected together in the manner shown in the drawings.

and 6 are provided the klongitudinal displacement of the key 8.`

The construction of the clamping collar. as above set forth, is such that the actionv of the device is very simple, the operator only being required to strike the key 8 a light blow in either direction to loosen the collar on the drill column or effectively tighten the same in rigid engagement with said column device and having itsy Any tendency for `the key 8 to be displaced longitudinally is that the fastening 4 must through the frictional engagementv of the' parts l and 2 and 9. There is no liability Whatever of the clampingffcollar*becomingaccidentally detached from the column for the reasons hereinbefore presented.

Having thus describedmy invention, What" yclaim as new is: y

l. A clamping. collar for;k minef drilling;

machines comprising opposing sections formed at .Y one ende-:With ozffstandng lugs-,1 and lati-the g-opposite f-endsfwitholi'standing; lugs,` 130:1 v gether, ,the x:arms being, formed` with;r slots thereof, a gibandfikeyjyextendng;

armsaa; fasteningf; oonneeti-'n-gi; said lengthwise through the .slots offsaidfarms;v and oppositely taperedy fory Wedging coperatinng the i f gib. beingprovidedW-ith offstanding'zfproj eotions 'to engage with. thesaid arms toiprevent ,disp placement i ot the gib, and fa fclampng; folug; disposed. intermediate said 4iarmsandi o'rrnedf Withfa portoncoincdenti Nvith'fthe inner; sure; faces of fthe* lamp; seetions, saidldogfalse, bef' head ,proj eetingi ,Kandi rope eratlngin .thef Slots ,-offtheoi'fstanding; arms i d ing; lformed` Witha otxsaid. sections., r v Y 22,1 A@ clamping! col-lar forl 1min'elfdrill.Y -Coll Copiesfof this:patent may,bembtaned.fo-r.1 rvelcents each, by addressinggtheCommiss-ioner,gofiPtentln.

against the' nther, the :giblhaying projections at` its fends engageablle with( theA outer sides ofi-the armsfto` preventdisplaeement ,of `the gib, a,- clampingg dog arranged betweenf saidV arms and havingfits; inner -f-en'd coincidentwithy the inner surfacey of# the :sections-,and provided at its. outer enidzwith a jheadoperatf ingA'in-the slots :of isaidi arms, gandengageable by the said key, the key being formedrwith thezprojeetionsfarranged at iitsends and ,op-

posite -to theV head-lof the' said. Idogiandicofv operative therewithto prevent unauthorized.

ispl'acement of lthe key.' .Y

OTTO RADTK'E;

Inftestimony ',WhereoffT ai-vxmywsignatllne;

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