US1619032A

US1619032A - Door latch

Info

Publication number: US1619032A
Application number: US110792A
Authority: US
Inventors: Stuart W Parsons
Original assignee: Stanley Works
Current assignee: Stanley Works
Priority date: 1926-05-21
Filing date: 1926-05-21
Publication date: 1927-03-01
Anticipated expiration: 1944-03-01

Description

s. w. PARSONS l DOOR LATCH Filed May 2l 1925 a I l A., f. l a/.w 2 5 2 cl. .www C N 50 mounted for sliding movement; sired, it may be screwed into the head, as

Patented VMar. 1, 1927. n UNITED STATES PATENT FFICE.v

STUART W. PARSONS, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE STANLEY WORKS, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

DOOR LATCH.

Application filed May 21, 1926. SerialNo. 110,792.

This invention relates to a door latch of to bke-secured as hereinafter described more the type having a spring projectedV bolt conin detail. trolled by an operating member, such as a. Referring to the drawings in detail, a thumb piece, acting through a lever condenotes, generally, the casing having afront nected to the bolt. or face plate I). c is the bolt, the inner end 60 The aim of the invention is to provide a of which is guided by a member d. e is the latch of this sort having various features spring normally urging the bolt into adof novelty and advantage and whichis parfanced position, and f is a lever operatively ticularly characterized by its simplicity and connected to the bolt and pivoted on a stud g.

economy in construction, its durability and The operating member, in the present illus- 65 its effectiveness in operation. Y trative disclosure, is shown as being in the Morel particularly, the aim of the inven-y form of a thumb piece h of the usual type,

- tion is to provide a door latch wherein each and 1l is a handle connected to the door k.

of the parts may be cheaply made; wherein The casing includes two parts, each of the parts may be readily assembled; wherewhich is preferably formed from sheet metal 70 in the bolt has an easy, smooth movement, so as to eiiect economy in manufacture. all danger of the bolt sticking beingelimi.- Gne of these parts hasa side 10, the edges nated; .wherein the part-s are Veffectively of which are bent over so as to form a top maintained in their proper relation, so that wall 11, a bottom wall 12 and a rear wall 13.

there is no likelihood of the latch getting The top and bottom walls 11 and 12 have, 75 out of order, and which may be operated attheir forward ends, lugs 15 which extend with a minimum amount of effort. through the face plate, and these lugs are Other objects will be in part obvious and peened over as shown. The other art of inpart pointed out more in detail hereinthe casing comprises a removable si e plate after. 16 having, in its rear edge, a notch or re SQ rIhe invention accordingly consists in the cess 17 adapted to closely receive an extenfeatures of construction,combination of elesion 18 on the rear wall 13. The forward' ments vandarrangement of parts which will end of the side wall 10 has a projection 19. be exemplified in the construction herein- On the forward edge of the removable side after set forth and the scope of the applica plate 16 is a similar projection 20, and these 85 tion of which will beindicated in the approjections, when the parts are assembled, pended claims. extend into, and engage the respective side In the vaccompanying drawings, wherein edges of, the opening 21 in the face plate I have Shown, for illustrative purposes, one and within which o ening the head 22 of of the many lembodiments which the present the bolt 0 is mounte By constructing the 90 invention may take: casing in the manner described, a very eco Figure 1 is a side view of my improved nomical arrangement is obtained, and the latch with the side plate of the casing reparts may be quickly assembled and are very moved and parts shown in section; securely held together. Furthermore, a

40 Fig. 2 is a vertical sectional view taken smooth and solid backing for the bolt is had, substantally on line 2-2 of Fig. 1, and it being observed that the bolt is reversible, shows the thumb piece or operating lever as shown in Fig. 3, and that, in either posiand a portion of the handle in dotted lines; tion of the bolt, it is guided by the side walls Fig. 3 is a horizontal sectional view taken of the casing and the lugs 19 and 20, there on line 3-3 of Fig. 1; being no breaks or cracks in these guiding 100 Fig. i is a front view of the face plate, surfaces so that the bolt will have a smooth and illustrates the manner in which the lugs action. on the sides of the casing engage in the The bolt has a shank 25 which ma be opening in which the head of the bolt is formed integrally with the head or, i de- Fig. 5 is a view of the removable side shown in Fig. 8. On the rear end of this plate `of the casing; and shank is a button 26. The shank is sup- Fig. 6 is a perspective view of the guide ported and guided by the member d. Bemember for the bolt and to which guide tween this member and the head 22 is the 5 member the removable side plate is adapted coiled spring e. Interposed between the end 110 verse or cross portion 40.

,sideplate 1G when this of the spring and the member d *is a washer 27.

The member d is preferably formedof sheet metal and has a pair of lugs 28 between which fthe shank of the bolt is slidably mounted. The member Z is secured to the wall l() of the casing by peened over lu-gs 30. Carried by one of the lugs 28 is a bent over ear 3l having a. screw threaded aperture 32 adapted to receive a screw 33 by meansof which the removable side plate le is secured in place. It will be noted that this member CZ, which is very simple in construction and which may be economically formed, in addition to acting as a guide forthe bolt, constitutes an .anchor to which the removable side plate 16 is secured.

The lever f has a generally U-shaped body with 'side'portionsBS and 39 and a transrI'he body is of a width substantially co-extensive with the distance betweenfthe sides of the casing so that the'l'ev'er is Imaintained against lateral canting or tilting. Extending upwardly from one side portion .of the U-shaped body is an arm 4l which engages between the member Z anidthebutton 26 of thebolt. Extending rearwardly from one side of the U-shaped body is an apertured ear 42 through which extends the :pivot or stud g. One endf of this pivot `extends through'an aperture in the ywall 10'V and is peened over so as tosecure the. pivot in place. The other end ofthe stud is of reduced diameter and is adapted to engage in a similarly sized aperture 48 inthe plate is in position. It'will be noted that the'lever lf is formed 0f sheet metal so that it may be veconomically manufactured and, when the vparts 'are in place, the l`lever is properly guided in vits movements.

vAdjacent the U-shape'd portion of the lever fthe casing is recessed, as illustrated, so asto accommodatethe operating member whichiis'here shown as being-inthe form of thethumb piece/z of the usual construction. If" desired, 'a secondfthumb piece extending to the opposite side of the door, so that the latch may -be operated from either' side, may be provided, such au arrangement being an-l old and well known one.

'As many changes could-belmade in the above construction and many apparently widely different embodiments of this invention could be made without departingfrom the scope thereof, it is intendedl that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as-illustrative and not in a` limit-in(T sense.

Itis also to befundcrstood thatlthe languageused inthe following Aclaims is intended to cover-all of the generic and speci-o rfeatures of the invention hereinfdescribed and -all statements ofthe scope of the invena f face scribed and in combination, acasing ineluding a face plate with an opening for aecommodating a bolt, a part formed of sheet metal and` having side, top, bottom and rear walls, the llatter of which has an extension,

and a part comprising a removable side plate havinga notch closelyreceiving said eXtension, said side wall andsa-id plateieach having a'projection extending into and engaging` a respective side edgefof said opening; a bolt having a head slidably'mounted in said opening and engaging the smootlnunbroken surfaces provided by thesidesofthe Casing-andthe said projections; a screw-securing said side plate in place; -a lever-in said casing operativelyconnected to Isaid bolt, and an operating memberforv said-lever.

2. In a door Vlatchfof fthe-Characterde scribed and in combination, a casinghaving a -face plate providedwith an opening for accommodating a bolt, a part for-med of sheet-metal and having a sidewall, and a removable side plate; a spring projected bolt infsaid casing and having a head-eX- tending through said'opening; a sheet metal member secured to said side wallanid'constit'uting aguide 'forsaid bolt and fan anchor for said side plate2 said memberhavinga pair of lugsstraddling-and guidingV said/bolt anda bent over ear with afthreadedaper'- ture; a screw extending through said A'side plate and engaged in'saitd aperture forsecuring said side plateinplace'; a lever in 'said casing Voperatively connected to said bolt, and means-for operating said lever.

3. In a door latch oftheicharacterdescribed and in combination, a casing including a face plate having an opening 4'for accommodatinga bolt, -a sheet metal part havirr'g side, top, rear and bottom wal-ls and connected to said-face plate,-and afremovable side plate, said side wall and said side plate each'having a projection extending: into and engaginga respective side edge ofsaid open'- ing; a springprojected boltfhaving a. head slidably mounted in said openinglbetween sai'dprojections; a sheet metal member connected'to said side wall and constituting Ea guide for said bolt and -ananchor for said side plate, said member having la pair of lugs straddling said bolt and a bentover ear with a threaded aperture; a screw threaded in said aperture vand securing said side plate in place; a. leverpivoted in 4said casing and operatively connected to said bolt, and a thumb piece for operating. said lever.

4. In a door latch ofthecharacterf'described, and in combination, a casing having plate and a pair of side walls;.fa bolt slidably mounted. in said casing fand extendloo ii-o

ing through said face plate; a lever in said sheet metal member hav casing having a body with aA pair of side portion, the sides of vv portions and a connecting vtransverse porand slidably eng tion,` an arm extending from one of said of said casing, sa side portions and operatively associated With tending from one said bolt, and an apertured ear extending portion and operatively asso from one of said side portions, said side bolt, said lever portions engaging the respective side Walls extending ear jo of said casing and being guided thereby; a 6. In a door pivot carried by said casing and extending scribed and in combination, through said apertured ear, and means for a face plate, a part and having side, top,

le sheet me ted in said casing and aid face plate; a sheet bolt and secured to said for securing said'side l ieet metal lever haviated With said iece engaging said lever.

UART lV. PARSONS.

operating said lever'.

5. In a door latch of thecharacter deand a removab scribed and in combination, a casing having bolt slidably moun a face plate and a pair of side Walls; a extending through s spring projected bolt slidably mounted in metal guide for said said casing and extending through said face side Wall; a screw plate; a pivot carried by said casing; a lever plate to said journalled on said pivot and operatively asing an a-rm operatively assoc sociated with said bolt, and means for operbolt; and a thurib p ating said lever; said lever comprising a guide a sl ing a U-shaped body hich are parallel to age the respective side Walls id lever having an arm eX- of the sides or' the body ciated with the Jfurther having. a rearwardly urnelled on said pivot.

latch of the character dea casing having y sheet metal bottom and rear Walls tal side plate; a