US1621934A - Locking device - Google Patents

Description

March 22 1927. 1,621,934

A. E. KINTNER l LOCKING DEVICE Filed sept. 19. 192.3

anormal Patented Mar.` 22, 1927.

Unirse stares ALCU'IN KTNTNER, OF PAINESVLLE, OHIO. I

LOCKING DEVC-E.

Application lcd September 19, 19523. Serial No. 663,526.

This invention reiates to aloclring device, more j'mrtieularly a device tor locking a member `against sliding movement or a pair of members Veither or' which is capable 'of sliding relative to the other member.

luthe preferred application oi' the invention have adapted it to the locking oi' a Vpair ot window sashes, whereby one may be locked to the other either in 'their closed position or with one adjusted relative tothe other, inwvbich latter arrangement opening of `either sash beyond a predetermined position is prevented.

-One object or' the invention is to provide a .locking device oi this character ot rela tively simple construction.

Lanother object of the invention is to so construct the parts or elements constituting` the locking device that the lsame cannot be opened or unlocked by ordinary `tools or equivalent devices.

Another object ot lthe invention is to so construct the parts or elements constituting the loci-ring device 'that `the locking element is disposed behind the lock member' out of reach to prevent throwing` ot' the lock inember by a tool operated 'romthe outside of the sash.

Other objects of the invention will be apparent to those skilled in the art to which my invention relates `trom vthe following description taken in connection with the accompanying drawings, wherein- Fig. l isa fragmentary front view ot' a window having upper and lower sas'hes and a locking device, embodying my invention, applied thereto.

Fig. .2 a section on the line 2-2 of Fig. l. j

i?) is a top plan view oi the locking device showing the locking member and the position ,it occupies when the two sashes ot a window are Vin locked relation.

Fig. 4 is a section on the line P-sl. of Fig. 3.

is a sect-ion, similar to Fie'. fi, but sho-wing the lock n'lember in unlocked posi tiont Flg. Fig. 4.

Fig. T is a kplan view ofthe base plate.

Fig. 8 -isanend view of the lool: member.

Figs. 9 and l0 `illustrate a slightly modified ,form of construction embodying the invention.

In the drawings 1 .indicates a 4window G is a section ,on the line (3-6 ot trame having upper and lower sashes 2, 3, each slidably mounted in the frame 1 so as to move one relative to the other. The window irame l and. sashes 2, 3, may be of any desired construction but preferably comprise transverse members 2', 3', at their inner edges which are adapted 'to come into' aiigned'relationship as shown ,in Fig. '2, when the sas'ghes 2, 3, are in their closed positions.

a indicates kas anentirety the locking device adapted to be secured "to the upper sur-V iace of the cross member 3, and so arranged that 'the ioclr member' 1F' orf the locking device 4 will project into any one of series oi recesses t formed in one `of the vertical side members Qao't the upper sash 2. The side member 2 is formed with as many recesses 4 as desired and these recesses may be arranged relatively close together or in any desired spaced relationship, one being arranged in alignment with the loclr member el when the sashes 2, 3, areolosed to lock them'in such position. By providing a plurality ot' recesses It from the lower end or' the side member 2 toward its upper end, either sash may be adjusted relative to the other sash and locked in such positionand when so locked they may be moved in suoli relationship whether the sashes are moved upwardly or downwardly as the ease maybe. By .locking the sashes to eachother, either one may be opened to a `predetermined eX- tent and thereby prevent the opening ot the other sash any greater distance.

@t the locking device 4;, .5 indicates a base plate having side walls 6 extending along its opposite edges andprojecting upwardly therefrom. The inner faces otthese` side .walls 6 are under-cut or otherwiseV formed to Yprovide guides 7;

8, 8, indicateopenings 1to1-medV inthe base plate substantially centrally between the guides 7 and near `the opposite ends of the plate and adapted to receive screws 81 or equivalent devices to secure the base'plate to the cross member 3. 9, 9a, indieaterecesses formed in the base plate, centrally ot' the guides 7, 7, and arranged to form seats for a locking element l0 to be later referred to. As is shown, the openings 8, 8a, are countersunk so as to receive the 'heads ott-he screws Vand therefore be disposed out of the path of movement otthe lock member 4a. The opening formingthe seat 9 is preterably disposed concentricto the opening 8 for the adjacent screw 8b, so that when the locking element is seated in the seat 9L it covers the adjacent screw 8" and prevents access thereto.

The lock member ta is arranged to slide endwise in the guides 7, being formed with grooves 11 extending longitudinally along its opposite sides and is shaped at its forward end to seat in each of the recesses 1l. 12 indicates an opening formed in the tail portion of the lock member ta and extending vertically therethrough, and serving to movably support the locking element 10. The locking element comprises a rod 10, loosely itting the opening 12 and movable endwise therein. At its lower end the rod 10 carries a head 10b, corresponding in size and shape to the recesses 9, 9a. The rod 10EL is so arranged that it drops under the influence of gravity, so that when the locking element 10 is raised and the lock member moved endwise it will drop or move downwardly under the influence of gravity, and the head 10b thereof seat itself in one of the recesses 9, 9a. Fig. 4: shows the position of the lock member 4a in its locking position with the head 10b seated in the seat 9. By lifting the locking element 10 until the head 10b is disposed above the upper surface of the base plate 5, the lock member may be moved endwise, or toward the right as viewed in Fig. 4 until the head is disposed above the seat 9, in which position the lock element 10 will drop and the head 1()b will seat itself in the latter recess. The underside of the lock member la is preferably provided with a rabbeted portion surrounding the opening 12 to receive the head 10" when the locking element is elevated, the Wall of the rabbeted portion thereby' serving as a stop to limit the raising of the locking element 10.

13 indicates as an entirety means for limiting the movement of the lock member 4c in either direction. These means preferably comprise a stud 14C carried by and projecting downwardly below the lock member 4a and an elongated groove or recess 15 formed in the base plate 5, the end walls of the elongated slot or recess serving as abutments to engage the stud 14 when the lock member is moved in either direction. lThe elongated slot 15 is so arranged that when the stud 14C engages with the end walls thereof it will arrest the lock member 4a in those positions wherein the head 10b of the locking element 10 is above or in alignment with one or the other of the seats 9, 9, thereby permitting the latter to enter or seat itself in such recess and lock the lock member in such position. The stud 14 is seated in an opening 16 formed in the body portion of the lock member eta, being positioned therein after the lock niember el@ is assembled in sliding` relationship between the guides 7. The upper end of the stud is preferably riveted over the face of the lock member 14, so that once the base plate is secured in position and the lock member assembled thereon, it cannot be readily removed and access to the outer screw 8b obtained.

From the foregoing description it will be seen that the lock member when in locking position is superposed above the inner screw 8b which secures the base plate 5 to the cross member 3 and that when the lock member is out of locking relationship with the sash 2 it is superposed above both screws 8b so that access thereto is prevented. By arranging the screw openings S, 8a, in this manner, access to the securing screws is prevented and furthermore the projection of flanges or lugs at either side of the base plate as a means of securing the latter in place, are eliminated thereby simplifying the construction and at the same time increasing the difficulties of removing the locking device from the sash and to that extent making it impossible for an unauthorized person to gain admittance by bodily removing the device. By providing the tail portion la with an extension ein', access to the outer screw 8b is also prevented even when the locking device ta is iu its locking position, (see Fig. io).

In my construction the locking element is operated into its locking position, to lock the lock member and base. plate, by gravity, thereby making it necessary to raise the same vertically. Due to this arrangement and operation and the further fact that such locking element is disposed behind, or at the rear end of the lock member, it is at a point which is inaccessible to any sort of tool or device that may be thrust or wedged in between tlie cross members 2, 3, so that danger' of an unauthorized person spreading the sashes relative to each other and unlocking them, is prevented.

To those skilled in the art to which my invention relates, many alterations in construction and widely differing embodiments and applications thereof will suggest themselves without departing from the spirit and scope of the invention. My description and the disclosures herein are purely illustrative and are not intended to be in any sense limiting.

What I claim is:

1. In a locking device, the combination with a pair of members supported in sliding relationship, of a plate having guide means and formed with an opening and seats, means extending through said opening to secure said plate to one of said members, a lock member slidably engaging said guide means arranged to project into a recess formed in the other sliding member and having a tail member extending rearwardly from its lower portion, and a locking element l (if) movably Carried by said -tai'l member `and arranged to be seated `in one of'said seats when said flockmember is operated to its locking position and to engage the other seat when said lock Ainen'iber is in its unlocked position.

f2. In a 'locking device, Ithe combination with a pair 'of members supported Ainsliding relationship, 'of 'a plate having guide means and formed with an opening and seats, means'ex'tending through said opening to secure said plate Vto 'one of said members, a lock member slidably 'engaging said guide means arranged to project into a recess formed in the other sliding member and having a itailmember extending rearwardly from its l-ower portion,and a locking 'element movably carried by said tail member and arranged to be'seated `in one of said seats when said "lock member is operated to its locking "position and lto 'engage the other seat when fsaid lock lmember is in its unlocked position, thzenpper end of said locking element v'being below the 'plane ot' the top surface Aoff said lock member when seated in one of'saidseats.

iln a locking device, the combination with :a pair ot members supported in sliding relationship, 4or a plate having guides and formed Awith openings andseats between said guides, 'mea-ns extending through said openings'to secure said 'plate "tooneo't said members, a lock member slidably 4engaging said guides -and arranged `to project into la recess formed in the other member, and -a locking elementcarried by said flock member and arranged to be seated in one of said seats when said lock member is operated to its locking position and to be seated in the other seat when said lock member is operated to its unlocked position, one of said seats being aligned with one of said openings, whereby the locking element prevents access to the securing means in said opening.

4l. In a locking device, the combination with a pair of members supported in sliding relationship, of a plate having guides and formed with an opening and seats between said guides, means extending through said opening tol secure said plate to one of said members, a lock member slidably engaging said guides and arranged to project into a recess formed in the other member', a gravity operated locking element carried by said lock member and arranged to be seated in one of said seats when said lock member is operated to its locking position and to be seated in the other seat when said lock member is operated to its unlocked position, and means for limiting the movement of the lock member in either direction, said limiting means comprising an elongated slot formed in said plate between said guides and a stud carried by and projecting downwardly from said lock member and engaging the end walls of said slot.

5.111 a Ilocking device, vthe combination with a pair of memberssupported in sliding relationship, `oit a plate having guides and formed `with an opening and seats Ibetween said guides, means extending through said opening `to secure said plate to -one of said members, -a 'lock `member slidably 'engaging said guides and arranged to project into a recess formed in the other member, a gravity ope ated locking element `carried by said lock member and `arranged to lbe Vseated Ein one lo'l` isaid seats when said lock member `is operated to yits Ilocking yposition yand :to lbe seated'in `*the other-seat when said lockmember is operated yto Yits unlocked position, and means for limiting Ithe movement of "the lock member in either direction, sali-'d limiting means-comprising an elongated slot formed in said plate anda stud depending trom the body portion of said "lock lmember .and depending rom its lower surface to engage the end walls of `said slot.

6. lln a locking device, the lcombination with a pair oitmem'bers-supportedin sliding relationship, one oit said members having :a cross jmember, of a jplate having :guides extending at -rightangles to the plane et movement of said members `a-nd formed intermediate the ends of said guides land therebetween =with an opening yand fa recess, means extending through said opening `for :securing said plate to said cross anember, a flock Jniember slidably :engaging said guides .and arranged to `be `projected into a recess in the other member .for 'locking said aneinbers against relative sliding movement, the rear end ot said lock member being formed with an opening extending vertically, and a locking element slidably mounted in said last mentioned opening tending, under the influence of gravity, to engage said recess when said lock member is in one position and to engage one of said openings when said lock member is in its other position, the upper end of said locking element, when in locking position, being below the upper surface of said lock member,

7. In a locking device, the combination with a pair of members supported in sliding relationship, one of said members having a cross member, of a plate having guides extending at right angles to the plane of movement of said members and formed intermediate the ends of said guides and therebetween with an opening and a recess, means extending through said opening for securing said plate to said cross member, a lock member slidably engaging said guides and arranged to be projected into a recess in the other member for locking said members against relative sliding movement, the rear end of said lock member being formed with an opening extending vertically, a locking element slidably mounted in said last mentioned opening tending, under the influence lll) of gravity, to engage said recess When said lock member is in one position and to engage one of said openings when said lock member is in its other position, and separate means for limiting the movement of said lock member in either direction with said locking element in alignment With Said re cess or opening.

8. In a locking device, the combination with a pair of members supported in sliding relationship, ot a plate having guide means and formed with an opening and seats, means extending through said opening to secure said plate to one of said members, a lock member slidably engaging said guide means arranged to project into a recess formed in the other member and having a tail member extending from its lovver rear end, said tail member being formed with a vertical opening, and a locking element slidably fitting said vertical opening and arranged to be seated in one of said seats when said lock member is operated to its locking position and to be seated in the other seat when said lock member is in its unlocking position, the upper end of said locking element, when seated in either of said seats, being below the upper surface of the body portion of said lock member.

9. In a looking device, the combination with a pair of members supported in sliding` relationship, of a plate having guide means and formed with an opening and seats, means extending through said opening to secure said plate to one of said members, a

lock member slidably engaging said guide means arranged to project into a recess formed in the other Vmember and having a tail member extending from its lower rear end, said tail member being formed With a vertical opening, and a locking element slid ably tting said vertical opening and arranged to be seated in one of said seats when said lock member is operated to its locking position and to be seated in the other seat when said lock member is in its unlocking position, the upper end of said locking element, when seated in either of said seats, being below the upper surface of the body portion of said lock member, said locking element being provided with a head to limit its raising movement.

l0. In a locking device, the combination ot' a pair of relatively movable members, of a plate having guide means, means disposed between said guide means for securing said plate to one ot said relatively movable members, said plate being formed with a recess, a locking element slidably engaging said guide means and arranged to engage and disengage the other of said members, and disposed above and covering said securing means when in either of its positions, and an operating member slidably fitting an opening in said element and arranged to engage the walls of said recess to lock said element against movement. A

In testimony whereof, I have hereunto subscribed my naine.

ALCUIN E. KINTNER.

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