US593182A - Joseph d - Google Patents

Description

(N0 Model.)

J. D. WOODBURY. LATGH.

N0. 598,182. Patented Nov. 2, 1897.

UNITED STATES PATENT JOSEPH D. \VOODBURY, OF SPRINGFIELD, MASSACIIUSETTS, ASSIGNOR OF ONEJIALF T ORRIN L. COWLES OF SAME PLAGE.

LATGH.

SPECIFIG'A'IION forming part of Letters Patent N0. 593,182, da.ted November 2, 1897'. Application filed December 12, 1896. Serie]; N0. 615,45l. (N0 model.)

T0 all w7wm i29 may concern: other, so es to correspond to the angle 0f the Be it known thar'o I, JOSEPH D. W'OODBURY, cam-surfaees b. As shown in Fig. 5, 110 change a, eit-izen of the United States of America, 1ewhatever is made in the keeper B, and the siding at Springfield, in the county 0f Hamponly change that is made in the ease A is in 5 den and State ofl\lassachusetts,have invented havin g the stops d und the cam-surfaces b pro- 5 5 new and useful Improvements in Fastening ject ab its inner end, so es 120 eatch over the Devices f0r D00rs, of which the following is keeper B. The angle at which the ean1-sur a specifieation. faces b extend to the inner end a of the lat0h- This invention relates to locks and springcasing is immateriel so long es these 02m1- xo latches for doors, &c., and has f01 its object surfaces cateh 0ver the keeper B for thepur 60 the m1tomatic alinement 0f the two parts of p0se hereinafter described. An improved the lock located, respeetively, 011 tl1e (1001 appearance is given the case by forming tl1e and tl1e door-casing; and the invention 0011- stops d d integral With seid cam-surfaces, sists in the eonstruction and arrangement of. seid stops being simplya continuation of the th e seid tw0 parts of the loek, all es hereinsurfaee 0f tl1e can1s ata suitable angle thereto 6 5 after sei; forth and claimed. and also at right angles to the end a of the In the drawings forming part of this speoi case and parallel eo the front and rear surficetion, Figure l is aview of a spring-lateh faces thereof. These stops are in 110 wey es- 0ase and its keeper embodying my invention sential to the operation 0f the can1-surfaces, applied to a door and casing. Fig. 2 is a secbut they forn1 efficient means for preventing ti0n 013 Fig. 1 011 line 2 2 of that figure. Fig. the swinging 0f the door t00 far pasthe edge 3 is a side view 0f the latch-case seperated 0f the casing 011 the closing 0f seid door, from and out 01. line With tl1e keeper. Fig. whereby the hinges migl1t be strained 01 4 is a t0p edge view of t-l1e latch and its keeper broken.

25 in a, position of engagement. Fig. 5is a per- B y ehe use of a latch 01 l0ek case 0f tl1is speetive view 0f the back side of a springoonstruetion all die weight of the door is lateh and its keeper. taken 0il fron1 the hinges when the door is All of tl1e ab0ve views embody my invenclosed[ Furthennore, while the drawings tion. sh0w tw0 inclined eam-surfaees 0ne may suf- 50 Referring 130 the dmwings, the only fonn fi0e under certain circumstances.

0f door-fastening shown is a spring-lateh 0f The keeper B is shown in tl1e drawings es the usual construcion having my invention havingits sidesfinclined t0 correspond to the applied thereto, although the invention is inclination of the eam-curfaces b b. VVhile equally applieable t0 almost any form 0f lock tl1e ooineiding angles of the parts b and f 5 01' spring-letch er holt. improve the appearanee 0f the fastening the A representsa springlatch Gase 0f ordinary seid sides f of the keeper might be made et c0nstructi0n and whieh has formed upon it's right angles t0 the freut and rear faees of the inner end the two eam-surfacesb and the two case without iuterfering with the eesy operast0ps d, wl1ieh project beyond the inner end tion cf. the seid camsurfaces 011 the keeper. 40 of the case any suitable distance, es shown From the above description it Will be 0bin Figs. 1 and 5. The stops (Z projeet f0rserved filmt if a door which has the herein- Wa-rd ine line with Ehe base of the lat0h, but deseribed can1-surfaekas applied to the fastenthe tw0 cam-surfaces b ineline toward each ing devices thereof sags t0 such an extent other at any suitable angle frorn opposite that the holt ls 0u of line With the keeper 01 5 edges of the frame and serve t0 catch over e letch '0ut 0f line with its letch-plate in the 5 opposite edges 01' the keeper B. This keeper casing seid defect is ren1edied, and upon the B is 0f ordinary c011struction and may either elosing 0f seid d0or and the eontaet 0f seid have iuelined sides o1 sides which project at inelined cam-surfaces b b with the keeper or 1i ght angles from the base, bun es here shown othex suitebly-located fixed part tl1e seid holt 50 the sides f 2ue made to ineline towzxrd each 01 lateh is brought into proper operative posiuion f0r enga-gement With the keeper, the perfect alinement of the bolo 01 latch and ohe pa1b which receives it being' aubomatieally effected,'whether the lock or spring-Patch be fastened 110 the domor 130 ehe door-casing.

117 is obvious that it is only necessary f01 the efficient acti'on 0f this eonstruction Iahat one 01 1311e othe1 0f 13110 two parts 0f the lock viz. the case 01' the keeperbe provided With an inclined cam-surface f01 engagement with a port1ion of the other ofsaid parts, whereby the tw0 am brought into proper alinement.

N0 change is made in my fastening deviee for doors except the latoh-case is provided with inclined camsurfaces upon its inner end, and Which forn:1 extensions of the side edges of the easing, anrl the stops (Z, which f(' r1n

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