US1456466A - Reversible bolt lock - Google Patents

Description

May 22, 1923.

W. N. SAUERBREI REVERSIBLE BQLT LOCK Filed March A TTOR/VEYS' Patented May 22, 1923s UNHTED STATES @FFE WILLIAM NICHOLS SAUERBREI, WILSON BOI-IANNAN, INCL, OF YORK.

REVERSIBLE BOLT LOCK.

Application filed March 3, 1921.

To all whom it may concern Be it known that I, WILLIAM N. SAUER- nnnr, a citizen of the United States, and a resident of the city of New York. Richmond Hill, borough of Queens, in the county of Queens and State of New York, have invented a new and Improved Reversible Bolt Look, of which the following is a full, clear, and exact description.

The invention relates to looks such as shown and described in the Letters Patent of the United States, No. 1,272,967 granted July 16, 1918, to Anthony Kirsch.

The object of the invention is to provide a new and improved reversible bolt lock or latch arranged to permit of conveniently reversing the bolt to allow the use of the lock on doors swinging either inward or outward.-

Another object is to permit of conveniently reversing the bolt without disassembling the lock.

With these and other objects in view, the invention consists of certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claims. 7

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similan characters of reference indicate corresponding parts in all the views.

Figure 1 is a reduced plan view of the improved reversible bolt look as applied to a door swinging inward the door, door casing and keeper being shown in section;

Figure 2 is a similar view of the same with the improved reversible bolt lock applied to a door swinging outward;

Figure 3 is a rear sectional view of the improved reversible bolt lock;

Figure 4 is a cross sectional. view of the same;

Figure 5 is a perspective view of the reversible bolt lock with the bolt partly reversed;

Figure 6 is a perspectivev view of the yoke;

Figure 7 is a perspective view of the bolt; and

Figure 8 is a perspective view of the lever for locking the bolt to the yoke.

The lock in its general construction, as shown in Figures 1 and 2, consists of a key controlled cylinder section 10 and a latch Serial No. 449,277.

bolt section 11 having a latch bolt 12 adapted to engage a keeper 13 or a keeper 14, the keepers being mounted on door jambs 15 and 16 adjacent the doors 1? and 18 on which the lock is shown applied in F igures 1 and 2. The cylinder section 10 is attached to the outer face of the corre sponding door 17 or 18 while the latch bolt section 11 is attached to the inner face of the door 17 or 18.

In the casing 20 of the latch bolt section 11 is mounted to slide a yoke 21 controlled by rollbacks 22 adapted to be actuated either by the key inserted in the cylinder section 10 or by the knob 23 mounted on the casing 20. The forward end of the yoke 21 is provided with a bearing 25 in which is mounted to turn and to slide the shank 26 of the bolt 12 which latter is provided with the usual head 27 having a beveled face for engagement with the corresponding keeper 13 or 14. A spring 30 is mounted in the casing 20 and bears against a lug 31 forming part of the bearing 25 to hold the latter and consequently the bolt 12 normally in a shot-out position. The bearing 25 is provided with a cut-out portion 32 into which projects the rear end of the bolt shank 26, and this rear end of the bolt shank 26 is provided with a collar 33 normally engaged by an arm 34 formed on a lever 35 fulcrumed on a stud 36 attached to the bearing 25 of the yoke 21. A spring 40 is held on the stud 36 and bears with one end on a lug 41 forming part of the bearing 25, and the other end of the said spring 40 engages a handle 42 formed on the lever 35. This lever 42 projects into an L-shaped slot 43 formed in the backplate 44 of the lock casing 20, as plainly shown in Figure 5. The square base of the bolt head 27 fits into a correspondingly shaped opening 45 formed in the front end of the casing 20 to hold the bolt against accidental turning.

When the several parts are in the normal position illustrated in Figures 3 and 4 then the lever 35 by its arm 34 engaging the collar 33 locks the bolt to the bearing 25 of the ,yoke 21 and hence when a sliding movement is given to the yoke 21 then the bolt 12'inoves with the said yoke either into retracted or shot-out position. When the bolt head 2? is in. the position shown in Figure 1 then vit readily engages the keeper 13 on closing the door 17 mounted to swing inward. Now when it is desired to use the lock on a door 18 that swings outward then the bolt 12 is reversed prior to fastening the lock in position on the door 18, andin order. to reverse the bolt it is necessary for the operator to take hold of the handle 42 and push the same downward from the longitudinal portion of the slot 18 into the angular portion thereof, as indicated in Figure 5. On moving the handle 42 as described, a downward swinging movement is given to the lever 35 whereby the arm 34 moves out of engagement with the collar 33 and the operator now by taking hold of the bolt head 27 can pull the bolt outward to disengage the base of the bolt head 27 from the opening 45 in the front end of the easing 20. The operator can now turn the bolt into the' reverse position shown in Figure 2 and when this has been done the operator pushes the bolt 12 inward to re-engage the base of the bolt head 27 with the opening 45. The operator next releases the handle 42 to allow the spring 40 to return the, lever 35 to' its normal position, that is, to re -engage the arm 3a with the collar 33 to cause the bolt to again move with the yoke 21.

From the foregoing it will be seen that by the arrangement described the bolt can be readily reversed to allow the use of the lock'on doors swinging either inward or outward. It will also be noticed that the bolt 12 can be reversed without disassemblingthe lock.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a look, a casing having a polygonal bolt head opening, a bolt having a shank of circular cross sectional contour and a beveled head slidingly engaging the said bolt head opening, a yoke provided with a hearing at the forward end thereof, said bearing being formed to provide an opening extending through its walls adjacent to the rear end thereof, said bolt having its shank arranged to slide and rotate in the bearing and to extend into the opening at the rear endof the'bearing, a collar secured on said bolt shank and received within the said opening of the bearing, whereby the axial movements of the bolt are limited, and a spring pressed lever fulcrumed on the said yoke and having an arm engaging the said collar to normally hold the said bolt against forward movement in the bearing and against movement relatively to the yoke, said lever having a handle extending through a slot in the casingand being operalfie exter iorly ofthe casing to release the be t.

2. In a look, a casing having a bolt head opening and a slot formed through a face thereof, a yoke slidably disposed in said casing, said yoke being provided with a bearing, a bolt having a head mounted to slide in the bolt head opening, and a shank mounted to turn and slide in the bearing, a collar secured on the shank of said bolt, and

spring-pressed means normally engaging the collar and the yoke to releasably hold the bolt against movement relatively to the yoke, said spring-pressed means including an element extending through the slot in the face of the casing and being operable exteriorly of the casing to move said spring-pressed means out of engagement with said collar.

3. In a look, a casing having a bolt head opening and a slot formed through-a face thereof, a yoke slidably disposed in said casing, said yoke being provided with a bearing, a slide in the bolt head opening, a shank mounted to'turn and slide in the bearing, a collar secured on the shank of said bolt, and a spring-pressed lever fulcrumed on said yoke and having an arm engaging thesaid collar to normally hold the said bolt against forward movement in the bearing and against movement relatively to the yoke, said lever having a handle extending through the slot in the casing and being operable ext'eriorly of the casing to release the collar.

a. In a look, a casing having a bolt head opening and having a slot formed through a face thereof, said slot having the major" portion thereof extending longitudinally! of the casing and having a downwardly turned portion at the'forward end thereof, a yoke slidably disposed within the casing and being provided with a bearing, said bearing having an opening formed through its walls adjacent to the rear end thereof, a bolt having ashank mounted to turn and slide in the bearing and having a head adapted to slide in the bolt head opening,a collar secured on said bolt and received within the opening of the bearing, whereby the axial .inovements ofthe bolt are limited, and a spring-pressed lever fulcrumed on said yoke and having an arm engaging the said collar to normally hold said bolt against/forward movement in the bearing and against movement relatively to the yoke, said lever having a handle extending through the slot in the face of the casin g and being norm ally disposed in the longitudinal portion of the slot, said handle being movable along the longitudinal portion of the slot and'into the downwardly turned portion thereof to move and releasably hold the arm of the lever outof engagement with the collar.

5. In a'lock, a' casing having a polygonal bolt head opening, abolt having a'shank of circular cross sectional contour and a beveled head slidingly engaging the bhl t head opening, a yoke provided with a hearing at the forward end thereof and having a lug extending radially of the bearing, said bearing being formed to provid an opening extending through its walls adjacent to the rear end thereof, said bolt having its shank arranged to slide and rotate in the bearing and to extend through the opening at the rear end of the bearing, a collar secured on said bolt shank and received within said opening of the bearing, whereby axial movements of the bolt are limited a lever fulcrumed on the yoke and having an arm adapted to engage the said collar to hold the 15 said bolt against forward movement in the bearing and against movement relatively to the yoke and having a handle extending through a slot in the casing, and a spring member supported intermediately upon the yoke and having one end bearing against the lug on the bearing and its other end bearing against the handle of the lever, whereby the arm of the lever is normally held in engagement with said collar, said handle being operable exteriorly of the casing to move the arm of the lever out of engagement with the collar and out of engagement with the bolt.

WILLIAM NICHOLS SAUERBREI.

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