US1324162A - A cospobatiow - Google Patents

Description

F. J.- LAU. LOCK rgn B'AG FRAMES. APPLICATION min MAY 2. m1.

Patented. Dec. 9,1919.

nueuroz Fwdeflh/allau $3M 61170411441 vi a M rn nnIcK alien, or wATEaizUnY, oonnnoricor; essrenoa 'ro WoRoEs'rER METAL oons COMPANY, or snnnr'on, ooivnnorion'r, A o'oaronn'rion or To all whom it may concern:

Be it known that I, FnnnRIoKJ. LAU, a citizen of the United States, residingat the city of Waterbury, in the county of New Haven and State of Connecticut, have 1nvented a certainnew and useful Improvement in Looks for. Bag-Frames, of which the followingis a specification.

My invention relates to locks or fasteners generally, but is moreparticularly applicable to the type oflock disclosed in the Letters Patent No. 1,005,850, granted to me October 17 1911, for locks for bag frames and the like.

The principal object of my invention. is

toconstruct ailoolr in its ,entiretyin which the number of moving partsis reduced to .a minimum and which can be assembled by hand thereby dispensing with the employment or the usual assembling. machinery. A further object istoiprovide .detailparts and mechanism for looks or fasteners which are not only applicable to the lock disclosed herein but also to" looks or fastenersgenerally.

I attain these and other objects of my invention in the'mechanism set forthiin the following description and accompanying drawings in whichllke reference characters refer to corresponding parts. In the drawings: a j Figure 1 is a back view of the lock in position onone of the swinging members of the'bag frame; ii a a a Fig. '2, a similarview but showing the bolt depressed 1:0 release the hasps which are'atta'checl to the-opposite swinging mem- Fig. 3, an enlarged perspect' e view of the lock'casing; j

1 Figs. 1 and 5, enlargedperspective views of the bolt and tumbler respectively, and

Fig. 6, an enlarged perspective View of the springs. l

Referring now to theseveral figures of the drawing, the casing 1 is suitably bent up'out of a singlepiece of sheet metal so that its body portion .fcrmsthefront'wall 2 and its edge portions the bottom wall 3, end walls 4, 4 and top wall 5. The casing thus formed is abox-like-structure having its rear side open as shown in-Fig. 3. Thetopiwall 5.is cut-.:away inidWa-yof its ex-' ti-emities to formjare'cesshaving end edges 6, 6 and anin'ner edge 7. The portionof riveting operation.

. slots 21, 21

i the projecting lugs .23,

MASSACHUSETTS.

LOCK non mean ime.

Specification of Letters Patent. Patented Dec. 9 .1919. Application filed. May 2, 1917. Serial No. 166,040.

the top wall 5 beyond this recess toward the front wall12 may if'desired be furthercut away leaving lugs 8 8. The front wall 2 is provided .with a pair-of hasp-receiving slots 9, 9, and the bottom wall 3 is suitably upset to form the V-shaped projections 10 10, one of which islocated near each extremity. Midway of the bottom" wall 3 between these projections is formed the aperture 11. A guide post 12 having its base enlarged to form a shoulder 13 is suitably secured to the bottom wall 3 by passing its lower extremity 1% through the aperture 11 and upsetting it uponthe under side of the Wall 3 by a Movably mounted on the'post 12 and bearing against the front wall 2 of the casing is a U-shaped bolt 15. This bolt is suitably bent up out of a single piece of sheet metal to form the top and bottom plates 16 and lTwhichare spread apart and connected at their rear edges by the verticalstruts 18, 18 The bottom plate 16 has its extremities bent upwardly to form the beveled hasp posts 19,19 and its intermediate portion pierced to form an aperture 20 through which the guide post 12 eX- tends. .The top plate 17 is provided with adjacent to its extremities'anda keyhole 22 midway of its extremities. The fronted e of thebottom plate 16 is cut away forming recesses for the tumbler but leaving -Mounted on the top plate'l? is a ferrule 25 having downwardly projecting lugs 26, 26 which latter pass through the slots 21, 21 and are clenched on the under face of the top plate 17 to fasten the ferrule to the bolt. The top of the ferrule is provided with a keyhole 27 which registers witli the keyhole 22 in the top plate 17. Movably mounted in the easing and bearing against the front and'bottom walls 2 and 3*is an L-shaped tumbler 28. This tumbler is bent up out of a single piece of sheet metal to form the front plate 29 and the bottom plate The front plate 29 provided about midway of its extremities with the upwardly projecting lug 31having a vertical key slot 32, and ad jacent to or at. its extremities is further provided with the upwardly projecting lugs 33, 33 which latter are considerably shorter than the lug 31. The rear edge of thebottom plate 30 is cut away at its middle aortion to form a recess havin end ed es i t) h bears against the shoulder 13 on the guide post 12. The tumbler 28 is mounted to slide on the bottom plate 3 of the casing, its sliding being limited by the edges 3a, 3 1: of the recess in its bottom plate abutting against the shoulder 13 at the base of the guide post. The bottom plate 30 is struck up adjacent to its extremitiesto form the V- shaped projections 36, 36 respectively, which present V-shaped pockets on the under side of the plate arranged to interlock with the Vshaped projections 10, 10 on the bottom plate 3 when the tumbler is at rest in its various positions." The extremities of the bottom plate30 are bent upwardly to form the spring-bearing lugs 37, 37. Movably mounted on the guide post 12 between the bottom plate 16 of the bolt and the bottom plate 30 of the tumbler are the blade springs'38 and 39 provided with apertures and 41 respectively through which the guide post 12 extends. The upper spring 38 is shorter than the lower spring 39 which latter is longer than the bottom plate 30 on the tumbler so that its extremities may engage the upwardly turned lugs 37 37. These springs may be said to be floating since their. extremities slidably engage the opposite platesofthebolt and tumbler respectively and their middle portions, which are flexed. toward each other, ride on the guide post 12. j

To assemble the parts the L-shaped'tum-L bler 28 is fitted in to the casing A in front of the guide post 12 so that its front and bottom walls bear respectively against the front and bottom walls of the casing. The springs 38 and 39 are then passed over the guide post so that the extremities of the spring 39 rest upon the projections 37, 37 on the tumbler. Then thebolt 15 having the ferrule 25 attached thereto is passed downwardly in a forward direction through the recess in the top plate 5 its bottom plate 16 passing overthe guide post 12 and bearing against the extremities of the spring 38.

' hen the bolt has been passed downwardly far enough so that its top plate 17 clears the recess it is then swung forwardly under the lugs 8, 8 and against the front of the casing, the ferrule 25 passing into the cut away portion between the lugs 8, 8; In this'position theibolt is forced upwardly by the springs 38 and 39 so that the plate 17 becomes seated against the under side of the lugs 8, 8. The moving parts of the lockibeing thus assembled in the casing the latter is passed downwardly through an aperture in the top horizontal plate A. of the bag frame member which aperture fits around the casing. The open side of the casing is now closed by the vertical plate of the bag frame member. The lock is supported on the bag frame member by the edges of the top plate 5 of the casing overlapping the edges of the aperture in the top plate A. An apertured escutcheon or retaining plate I) which is preferably flanged around its outer periphry is then passed over the ferrule 25, and attached in any suitablemanner to the top plate A ofthe bag frame member. j The aperture in the retaining plate Z) fits around the fer'rule'25 and serves to guide the same in its vertical movement and to prevent the ferrule and bolt from becoming displaced.

'VVhen the lock is assembled as above described, the hasp posts 19, 19011 the bolt15 extend across the hasprreceiving slots 9, 9 in the front wall 2 of the casing so tha-t when the two swinging members of the bag frame are brought together the hasps; which are carried by the opposite swinging member (not shown) of the bag frame from that carrying the lock, pass'through the. slots 9, 9 in the lock casing and enter into locking engagement with the hasp posts 19, 19.

During this operation the bolt 15 is de-. pressed against the action of the springs 38 and 39 by the'action of the hasps riding over the beveled edges of the heap posts; I In this against the action of the springs 38 and39,

thereby causing the hasp posts 319, ,19 to be lowered. out of engagement with the hasps into the position shown in Fig. 2; Vi hen the pressure 011 the ferrule is relieved the springs 38 and39 will force the bolt back again to its normalposition as shown in Fig. 1, wherein the hasp'posts .19, '19 may again be engaged by the hasps'inthe manner above described; It should be noticed that during the above described operation, in which the device merely acts as a spring latch or IEEtStG116I',*tl16 tumbler performs no function and for this reason if'desired can be eliminated and "an operative device constructed without it. When it is desired, however, to lock the bolt to prevent the has-p posts from becoming disengaged from the 'posts and hasps may be maintainedbyi moving the tumbler laterallyso {that the lugs 33, 33 on the tumbler will come underthe lugs 23,24t on the bolt and lock the latterjagainst any. downward movement. To throw or move the tumbler, into 1ts looking position the-key 42 is inserted downwardly through or upsets the tumbler laterally to its locking thekeyhole 27 in the ferrule and the keyhole 22 in the bolt so that its lower extremity passes down over the guide post. 12 and engages the bottom plate 16 of the bolt. When the key is turnedits bittQpasses into and engages one edge of the slot 32 andslides position; During the upsetting of the tumbler the'walls ofthe pocketsformed by the V-shaped projections36, '36 on the bottom plate 30 rideover the corresponding V- shaped projections 10, 10 onthe bottom wall 3 of the casing. The interlocking relation between the" corresponding projections and pockets on the casing and tumbler 1s ma1n tained when the latter is at rest by the down ward pressure ofthe spring39: on the lugs 37 37 onthe tumbler. 13y turning thekey in theopp'osite direction its bit engages the opposite edge of-the slot 32 and throwsthe tumbler backagain to its original position in which the lugs 33, 33on the tumbler are outof alinement with the lugs 23, 24 on the bolt, which latter may again be depressed to i disengage the hasp posts from their hasps The enlarged shoulder at the base of the 7 guide post serves to {transmitthe strainsfto the face portionofjthe'bottom ofthe casing and also reinforcesthe post against any tilting action. Since the post is of considerable length and performs both the function of a guide and keypost it is necessarily subjected to more than the usual strain upon either an ordinary guide or key post of shorter length. For this reason the reinforcing shoulder at the base of the post is a very important feature of my invention. It should be observed that informing the V-shaped projections upon the bottomof the casing I am thereby enabled to eliminate the usual separate platefor carrying these projections and by mounting the bolt upon a central key post I am thereby not only enabled to dispense with the usual guiding means at the lateral extremities of the bolt but also to make the .maximum width of the boltequalto the distance between the hasp lugs. Thls not only saves metal but also makes a stronger bolt.

It should be noticed also that the shoulder j formed on the guide post bears against the inner edge of the recess in the base of the umbler thereby holding the tumbler against the front wall of the casing. The lock may be quickly assembled since the gulde post 1s the sole means for holding the moving parts in position withinthe casing. I desire it to be understood, however, that while the guide post set forth hereinis'one of the important features of my invention yet the other features may be utilized without the employment of this guide post,and the device is susceptible to such'further modification as may fairly come within the scope of the appended claims.

able in the. casing and having means for engaging a hasp, a tumbler slidable in the casing, the said tumbler and easing each havingncoracting means formed thereon for holding the tumbler in its relative positions a-nd'thesaidbolt and tumbler having coacting means for holding the bolt against sliding movement or permitting it to slide accordingto the position in which the tumbler is held, and a spring device bearing on the bolt to holditin its normal position and bearing on :the tumbler to force the latter against the casing.

I 2. A lock comprising a casing havinga keyhole in its top wall and a key post erected on its bottom wall inalinement with said keyhole, a bolt slidably mounted on said post provided with means for engaging a hasp, a tumbler slidably mounted within said casing and provided with an elongated recess through which said bolt extends, the said tumbler and easing having coacting means for holding said tumbler in its relatlve positions and the Said bolt andtuinbler having co-acting means'for locking and 1L1I1- locking thebolt, and a springclevice bearing on the boltto hold. it in its locked position and bearing on the tumblerto force the latter against the casing.

3. A look comprising a casing, a bolt slidably mounted within said casing, a tumbler slidably mounted in said casing, the said tumbler and casing having co-acting means for holding the tumbler in its relative positions and the said bolt and tumbler having co-acting means for locking and unlocking the bolt, a blade spring having its extremities bearing on the bolt and a blade spring having its extremities bearing on the tumbler, the said springs being vertically movbler slidably mounted in the casing, the said bolt and tumbler having co-acting means for locking and unlocking the bolt and the said tumbler and casing having co-acting means for holding the tumbler inits relative positions, anda pair of centrally apertured blade springs movably mounted on said key post, the said springs being bent in opposite directions so that their extremities bear upon said bolt and tumbler respectively and their central portions bear upon each other.

5. A lock comprising a casing, a bolt slidably mounted in said casing, a tumbler slidably mounted in said casing, the said tumbler and casing having co-acting means for locking and unlocking said bolt, V-shaped pockcasing and arranged to enter into engagement With said pockets, and a spring device bearing on said tumbler to force-said pockets into engagement with the if-shaped projections on thecasing when the tumbler is upset.

6. In a fastening device a casing, a post and a support for said post, the said post having its base portion enlarged to form a shoulder which bears against the front of said support inside of said casing and the said shoulder being provided with a rivet which passes through said support and is upset on the under side thereof, in combination with an apertured hasp plate movably mounted on said post which latter extends through said aperture in the'hasp plate.-

7. In a fastening device a casing having a guide post erected on one of its inside walls, a hasp plate provided with hasp lugs spaced apart, the said hasp plate being apertured between said lugs and movably mounted on said guide post which latter extends through said aperture in said hasp plate.

8. In a fastening device a casing having a guide post erected on one of its inside Walls, an apertured bolt movably'mounted on said post and a centrally apertured blade spring also movably mounted on said post, so that thelatter extends thronghsaid aperture, the

said spring being arranged to bearagainst post, the said bolt being, arranged to move against the action of said springs.

10. In a fastening device open-sided casing having a post erected on its bottom Wall, a spring Within said casing and a bolt slidably mounted on said post andarranged to be depressed against the action ofsaid; spring, the said casing having the edge of its top Wall recessed leaving a portion of the Wall along one side :orfwsaid recess, the said recess being'of sufficient lengthto receive the bolta vhere'by the latter may be insertedv laterally into'the recess and downwardly over the post against the action of said spring and seated against that portion of the top Wall along the side ofsaid recess. y i i i In testimony whereof, I have hereunto set my hand this 24th day of April, I917. y

1 FREDRIQK'J, LAU.

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