US1637097A - Lock - Google Patents

Description

July 26, 1927.

' 1,637,097 A. E. ANAKIN LOCK Filed Jan. 15. 1925 VIIIIII'I'IIIA flrthurEJZna/(in dttarnqys Patented July 26, 1927.

UNITED STATES PATENT OFFICE.

ARTHUR E. .ANAKIN, OF LONG BEACH, CALIFORNIA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO SAFEWAY LOCK COMPANY, A CORPORATION OF NEVADA.

LOOK.

Application filed January 15, 1925. Serial No. 2,530.

This invention relates to improvements in locks.

It is an object of the invention to provide a lock having a bolt similar in construction to the bolt of an ordinary night latch, which will have mechanically operated means for throwing the bolt or sliding it into its keeper and then rotating the bolt after having entered its keeper; and to provide means 7 for preventing unauthorized throwing of the bolt. 1

Another object of the invention is to pro- ;vide a lock having a bolt upon which there is rotatably mounted a hardened ferrule,

which ferrule is disposed about a bolt in such a position that it .will be across the opening between the door and the door frame when the bolt is thrown so that because of the rotation of the ferrule, it will be impossible to saw the bolt through as by a hack-saw or the like.

A further object of the invention is to provide a lock having a bolt adapted to be thrown to lock the door, or other device upon which the lock is adapted tobe mounted,

which cannot be opened from the inside.

Withthe foregoing and other objects in view which will be made manifest in the following detailed description and pointed out in the appended claims, reference is had to the accompanying drawings for anillustrative embodiment of the invention, wherein Figure 1 isv a verticalsection through the door to which the improved lock hasbeen applied; v a V Fig. 2 is a vertical section taken substantially on the line 2-2of Fig. 1, and showing the keeper in sectionns associated with the Fig. 3 is a perspective view showing the bolt of the lock as having entered the keeper; i a

. Fig. 4 is a perspective View of the keeper, parts being broken away and shown in section Fig. 5 is a View taken substantially on the line 55 of Fig. 1. showing the sleeveyin which the bolt is slidable; and a Fig. 6 is a vertical section through the of Fig. 2.

wherein similarreference characters desigkeeper taken substantiallyon the line 6--"6,

10, there is mounted astrip 12 which is secured to the 'plate 10 as: by rivets 13. v The strap 12 is bent forwardly from the plate 10 and cooperates with the plate to form bearings for a shank 14 which is rotatable.

A look 15 is mountedwithinthe body of the door andprojects slightly from the front face thereof. This lock may be of any conventional construction and may be operated by a key which is capable of causing rotation ofthe shanklt in the bearings provided by the strip 12 and the plate 10. Theshank 14 has a squared portion 16 between the strip 12 and the plate 10, andpins 17 pro-- ject. from the sides of the squared portion. Links 18 are pivotally mounted uponthe pins 17 upon the sides of the squared portion 16 and form a crank pivotedto the shank 14. Upon the back face of the plate 10 there is secured a bracket 19 having fingers 20 which project through slots formed in the plate 10 and are clinched upon "the inner or forward side thereof. The bracket 19 serves to secure a sleeve 21against the back face of the plate 10.

lVithin the sleeve 21 there is slidable a bolt 22. A member 23 is pivoted between the lower ends of the links 18 and is provided with a ball-shaped head 24. The ball-shaped head24 projects through an arcuate slot 25 formed in the plate 10, and is received within a socket 26 mounted within thebody of the bolt 22. The member 23 with its ball-.

shaped head and the socket 26 provide a universal joint connection betweenthe crank formed by the links 18 and the bolt 22 A. slot 27. having an angular extension 28 is formed in the sleeve 21,. in which is slidable the ball-shaped head 24 of the member 23..

The forward end of the bolt 22 is of a reduced external diameter 29, and a ferrule 30 which is preferably formed of hardened steel is rotatable upon this reduced portion. Lugs 31Vare formed upon the topand hottom of the bolt 22 and serve to maintain the,

ferrule 30 upon the bolt.

The keeper consists of an inner member 32 having angular passages 33 formed there- .h. al

in, which angular passages give the appearance of a -bafonetjoint adapted to receive the lugs 331 he inner member 32 is rigidly held within an outer member or cap 34, which cap may be secured to a plate 35 by means of a bracket 36, the bracket 36 having fingers 37 'eiitending through slots in the plate 35 and being clinched upon the under side thereof. The plate 35 with the keeper mounted thereon may. be secured as hy screws, bolts, or the like, upon the door frame opposite the bolt 22. When the bolt is unlocked position, the links 18 forming the crank upon the shank 14 are extending dowmwardly and toward the left of the shank 14 when looking at the lock in the position sl1owninFig. '2. Upon rotation of the shank Iso as to the links 18 downwardly, the bolt 22 is urged toward the right. The downward movement of the member 23 carried :bythe links lStends to rotate the bolt:22as well as sl ideit within the sleeve 21. The socket 26 slida-ble within thesl'ot or groove'i27 "formed in the sleeve 21 prevents rotation ofthe bolt until the bolt has entered the keeper. After the bolt has entened the keeper, the socket 26 disen gages from the sides 'of the slot '27 having entered the angular extension 28 "formed in the sleeve 21. YVhen the socket 26 has entered the angular extension 28, the lin ksl8 will have beenv swung approximately 90 within the arcuate slot 25. The socket harving disengaged from the slot 27 then permits the bolt to rotate, which it is urged to donby the upward movement 01f the links 18 and the member 23 carried thereby. In

this manner, the bolt 22 is caused first to slide without rotation into the keeper, the lugs 31 entering the straight passages 33 of the an lar passages 33. Toward the end of the sli in movement, thebolt 22 is urged torotate, an as there is nothing to prevent this rotation toward the 'end o l? the throwing ol-the bolt, the bolt 22 will rotate and the lugs 31 will 'en'terfithe passages 33 of the angular passages The ferrule 30 occupies the position aponit'he bolt whenthe bolt is thrown, between the sleeve 2-1 and the keeper..

. From the construction. of the lock, it will be readily apparentlthat it is impossible to open the lock from the inside. This prevents thieves from entering a building, as in a store, and secreting themselves within the building until the owners have departed and then making their exit through "the door with the stolen property. Fm'themnore, if a thi'e' f attempts to s'aw the bolt, as by inserting a hack-saw between 'thefloor and the door .jamb, theaniovement -ozf the saw will merely rotate the hardened ferrule 30 and will prevent sawingol'the bolt.

When itji's desired to unlock 'the l'o'ck, the

shank 14 is rotated in an opposite direction, which swin s the links 18 from the right toward the l ef-t opposite the arcuate slot 25. The first movement of the links 18 produces rotation of the bolt so that the lugs 31 are withdrawn from the passa es 33'. into the 1; jassag'es'33' of the angular passages 33. urtlier movementof "the links 1'8 causes sli-ding of the bolt from the keeper, it being understood that when the lugs 31 are within the passages 33', the socket 26 is opposite, or in line with, the slot 27 formed in the sleeve 21.

From the above it is seen that an improved look is provided having :a bolt npon \vhidh a ferru there is a rotatable shank associated with the bolt, having means connecting the shank to the bolt whereby the bolt Will'be firstczmsed to slide into the keeper and after having entere'd it, will be caused to rotate therein. In this manner rotation of the shank 14 {produces two separate movements of the bolt,

namely, a sliding movement without rotation upon entering the keeper and rotation of the bolt with comparatively no sliding 1110\8ll'l6l1l1 a fter having entered 'the keeper.

It will be understood that various changes may be made in the detail of construction without departing from the spirit o1- scope of the invention as defined by the appendedsocket j'oint forming a universal connection between said crank and said bolt, a mug formed upon said bolt, a slot formed in said sleeve in which said lug is adapted to slide so as to prevent rotation of said bolt during "part o f its sliding movement, and means for preventing unauthorized rotation of said shank.

4. A lock compr'isih'g a sleeve,=a bolt slidable in said sleeve, a rotatable shank, a crank pivoted to said shank, aballand socket joint forming a universal connection between said crank and saidholt, :1 lug formed upon said bolt, aaslot ltormed in said "sleeve in which sa-id' hrg is adapted to Slide so as to prevent rotation of said bolt during part of its slidmovement, a "keeper adapted to receive saidbolt, lugs formed upon said bolt, Lpase 'is rotatably mounted and that.

, boltlid able in said sleeve, a rotatable shank, a crank pivoted to said shank, a ball and sages formed in said keeper adapted to receive said lugs, and means for preventing unauthorized rotation of said shank.

5. A lock comprising a sleeve, a bolt slidable in said sleeve, a rotatable shank, a crank pivoted to said shank, a ball and socket joint forming a universal connection between said crank'and said bolt, a lug formed upon said bolt, a slot formed in said sleeve in which said lug'is adapted to slide so as to prevent rotation of said bolt during part of its sliding movement, means for preventing unauthorized rotation of said shank, and a ferrule rotatable upon said bolt as and for the purpose described.

6. A look comprising a sleeve having a slot therein, a bolt slidable in the sleeve, a rotatable shank, and means connecting the shank to the bolt through the slot so that the bolt may be actuated thereby, whereby upon rotation of the shank, the bolt will be caused to slide in the sleeve and to rotate therein.

7. A lock comprising a sleeve having a substantially right angular slot therein, a bolt slidable in the sleeve, a rotatable shank, and means operatively connecting the shank to the bolt through the slot, whereby upon.

rotation of the shank, the bolt may be caused to slide in the sleeve and rotate therein.

8. A lock comprising a sleeve having a slot therein, a bolt slidable in the sleeve, a rotatable shank, an arm carried by the shank, and means connecting the arm to the bolt through the slot, whereby upon rotation of the shank, the bolt will be caused to slide inthe sleeve and rotate therein. I

9. A lock comprising a sleeve having a substantially right angle slot therein, a bolt slidable in the sleeve, a rotatable shank, an arm carried by the shank, and means connecting the arm to the bolt through the slot whereby upon rotation of the shank, the bolt will be caused to slide in the sleeve and rotate therein.

10. A lock comprising a sleeve having a substantially right angle slot therein, a bolt .ing connected to the bolt through the slot,

and being so constructed that the bolt will be caused to slide and rotate thereby, the sides of the slot acting as a guide during the movement of the bolt.

In testimony whereof I have signed my naineito this specification.

ARTHUR. E. .ANAKIN,

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