US1714372A - Lock - Google Patents

Description

- May 21, 1929.

E. N. JACOB! LOCK Filed Aug. 8, 1928 6 hath 5mm Mam;

- pas-sea May 21,- 1ea9'.

1 1,714,372 PAiusrvr, OF-FIIC' E1..I.',-

EDWARD a .rAcoBI, or MILWAUKEE, Wisconsin, ASSIGNOR are names Am: smar- TON'YCORZPORATION', or MILWAUKEE, wrsooivsm, A coarona'rron or DELAWARE.

" Loci;

' Application filed August s; 1928. Serial No.- 298,293.

This invention relates to certain new and useful improvements in lock structuresand has as a generalobject the provision of an improved lock having a reduced number of 5 parts to generally simplify'the assembly and reduce the manufacturing costs.

' Another object of thisinventwnresides in the provision of an improved lock structure havinga locking bolt stamped from sheet Inctal'rather than machined to simplify lts manufacture and provide a strong unitary arrangement.

Another'objectof this invention resides.

in the provision of an improved lock hav- :5 fi'ng a one piece casing and a locking bolt so arranged that its entire thickness IBSISlJS, shearingstresses inflicted thereon by at.- tempts to drive the cylinder through its mounting head. I Q Another object of this invention resides in the provision of an improved lock structure in which the locking bolt is constructed and mountedto permit engagement of its spring therewith at its center whereby the maximum strength of the spring is obtained. A further object of this invention resides in the provision of an improved lock'hav ing a one, piece mounting barrel provided with a steel front to'prevent breakingof the barrel to facilitate its unauthorized removal. And a still further object of ,this inv'en-i tion resides in the provision of an improved lock structure which may be readily removed and taken apart without special tools and without injuring the structure in any man- 1 ner; e

VVith the above and other objects in view '-which will appearas the description pro- 40 ceeds, my invention resides in the novel consuch changes in the precise, embodiment of the herein disclosed invention may be made as come withinthe scope of the claims.

Inthe accompanying drawing, I have illustrated one complete example of the-physical embodiment of my invention constructed accordin to the best model have so far devised ior'the practical application of v theiprinciples thereof and in which:

' Figure-Lisa side elevational view,.with

parts broken away and insection,-of alo'ck embodying my invention, Y r I j Figure 2 is anend elevational view of the lock assembly Figure-3is a fragmentary view of the rear end oft-he lock-with the mounting head in section and the cylinder and locking bolt in side elevation, illustrating themanner of assembling the lock;

of Figure 1 and illustrating the elon ated Figure 4 is a fragmentary, ,elevationalirregular shaped opening through which the locking bolt is inserted in assembling and. Figure 5 is a perspective View of the inher end of the lock cylinder, locking bolt and the washer member adapted to be positioned between the locking bolt-and lock cylinder. 1

Referring now more particularly to the accompanying drawing, in which like numerals designate like'parts throughout the several views, 5 represents a lock cylinder mounting head which is centrally'bored from the rear, as at 6, and has its outer end 7 ,provided with a smaller bore 8 concentric with.

the bore 6. A lock 'cy1inder '9- is rotatable -in the bore 6 and has a reduced outer-end portion 10 which is recei'vedin a protecting end cap 11 rotatable in :the reduced bore 8, the cap 11 having an annular flange 12 on its inner eripheral edge to abut a shoulder 13 forme at the junction of the bores 6 and 8 to .prevent outward movement of the v lock cylinderi The lock cylinder is provided with a plurality of spring pressed tumblers l which are normally-spring ur ed into lon 'tudinal slots 15 in the walls 0 the mounting head -bore to restrain the cylinder against rota I limit the outward movement of the bolt by an expansile spring 21 confined between two fee ' spaced guideparts 22 on the inner end of the lockmg .bo t

with oneend engagin a tit or enlargement 23 formed ion. the bol t and .its' other end engaged in a removable, cup

24'secu red in a recess 25 in the wall. of the bore 6 diametricall opposite-the recess-19'.

The inner-end o the cylinder has a'substantially V or segmental shaped extension I 26 from Oneend of which a'cam 27 projects to engage 'a shoulder '28. at the'inne'r end of one of the guide arts 22 so that when. the

. cylinder is rotate in a .clockwise ;;di rection,

- shaped opening34 in the wallof the mount- .ing' head opposite the opening 19 and the looking at the front end of the locl f, the cam 27 bears against the shoulder 28 "to"-1' etr act. the bolt against .its' spring 21, one guidepart working in the cut-away portion 29., of the;

' lock cylinder and theother working jonthe outer face of the V or segmental shaped ex tension 26. To prevent the insertion of an instrument through the key opening l7 to work the locking bolt against its spring 21, a washer 30 is positioned between the cylinder and locking bolt. The halves of the. washer 30 areon different planesso that one half 31' engages the extension 26 and -the other half 32 engages'the cut-a'way'section 29 and closesthekey opening atits rear, "a: recess or cut-away portion 33 inthe washer' member permitting the projection therepastof the eccentric pin-27.

' In assembling the lock, the cylinder .is engaged in the mounting head bore from the rear, the washer 30 is then. inserted to engage the rear end .thereof and the locking bolt unit is passed through'an irregular spring 21 and itscap 24 arethen placedin position, in the manner illustrated in Figure 3, the tit-35on'the bottom oft-he cup 24 nesting in the opening 34. In assembling or disassembling the lock, a'screw driver or other 36 is employed in the manner illustr in Figure 3, disasscmblingbeing accomplished by prying the tit 35 of the cup 24: out of the opening 34, as will be readily apparent. The opening 34, as best shown .in' Figure 4, has its two ends on difi'erent planes so as to accommodate the irregular shapeof the-enlargedinner endofthe lock .bolt.

' whereby rotation of the cylinder actuates the locking bolt} 2. a. look,- a lock cylinder mounting A 1 i i 1,712,372-

head having a central bore, a rotatable lock.

cylinder' adaptedto be inserted in the i mounting head bore from one. end, means preventing movement of the cylinder beyond the other end'of the mounting head, a'-.locking. bolt m ounted adjacent the first-men'- tioned end of the mounting head andpre 4 venting movement of the cylinder outwardly V of the mounting head, means whereby rotation of the-cylinder actuates the locking bolt,

and means detachably maintaining the lock- King bolt. in position,

Ina look, a lock cylinder mounting head-having a central bore, a lock cylinder rotatable in the bore, a locking boltmounted adjacent one "end of the cylinder, means wherebyrotati'on of the cylinder moves the locking bolt inone direction, means yieldably urging the locking bolt in the other.

direction, and means readily detachably maintaining the locking bolt assembled with the mounting head.

4-. In a lack, a lock'cylindermounting hea d having a central bore and atransverse' vslot communicating with the bore, a lock cylinder rotatable in the bore, alocking bolt slidably mounted in. the-transverse slot and preventing axial movement ofthelock cylinder, means yieldably urging the i locking 'bolt to its operative position with -a partthereofextended beyond the periphery of the mounting head, and means" wherebyv rotation of the lock cylinder retracts the locking bolt within the mounting head.

5. In a' lock,- a lock cylinder mounting "head having a central bore and a transverse slot communicating with the bore, a lock cylinder rotatable in the bore, a locking bolt slidably mounted in the-transverse slot and adapted to be inserted therein from one end, means limiting outward movement. of the locking bolt, means'readily detachably.

maintaining the locking bolt assembled with the mounting head, and means wherebyrotation of the lock'cylinder moves the locking -bolt.-

' 6. In a lock, a lock cylinder mounting head having a central bore and a transverse slot communicating with the bore, a lock cylinder rotatable in the bore, a locking bolt slidably mounted in the transverse slot and inserted therein from one end, means limiting' outward movement of the lockin bolt,

means yieldably urging the locking bo tout- Wardly of the mounting head, means readily detachably retaining the locking. bolt and its urgmg-means assembled with the mountingheadand means whereby rotation of the IOCkCYllXldGIflIIlOVBS the locking holt.

7. In a l ock,. a lock cylinder mounting head-having a'central bore with a shoulder adjacent one end thereof, a lock cylinder rotatable in"-the bore and abutting the shoulder at one end to. limit axial movement.

of the cylinder in one direction, a locking the lock cylinder to prevent axial movementof the lock cylinderin the other direction, and means engaging the opposite sidesrot thelocking bolt whereby a maximum force is provided to resist shearing stresses in-' flicted upon the locking bolt during attempts to drive the lock cylinder through the mounting head.

8. In a look, a lock cylinder mounting head having a central bore and a transverse slot communicating with the bore, a lock cylinder rotatable in the bore, a locking bolt mounted in the transverse'slot with its sides in engagement therewith, means limiting outward movement of thelocking bolt in one direction, means engaging the locking bolt at a centralpoint and yieldably urging the same outwardly of the mountinghead, and means whereby rotation of the lock cylinder moves the lockingboltagainst the yieldable action of its urging means.

,9. In a'lock, a lock cylinder mounting .head having a central bore and a slot traversing the bore, a lock cylinder rotatable in the bore, a locking bolt adapted to be mountedin the slot to prevent axial movement of the cylinder, means limiting outward movement of the locking bolt spring means engaging the locking bolt an normally yieldably urging the same outwardly to its operative position engaging said limiting means, a member engageable with the spring means and the slot to'prevent the accidental detachmentof the spring means and locking bolt, and meanswhereby rotation of the lock cylinder moves the-locking bolt.

10. In a lock of the character described, a mounting head having a slot traversing the bore, a locking bolt movable in the slot and adapted to be inserted therein from one end, means limiting movement of the boltbeyond the slot other end, spring means normally urging the bolt to its position engaging the limiting means, and means engaging the end of the slot through which the bolt is inserted to prevent outward movement of the spring means and the bolt.

11. In a lock of the character described, a mounting head having a central bore and a slot traversing the bore, a lock cylinder rotatable in the bore, a locking bolt slidably mounted in the slot and adapted to be inserted therein from one end, means limiting the movement of the locking bolt beyond the other end of the slot, an expansile spring ongageable with the locking bolt and normally urging the same outwardly of the slot other end, a retaining cup engageable with the other end of the spring'and readily detachably positioned to retain the spring and bolt in operative position, and means whereby.

rotation of the lock' cylinder moves the.loc king bolt against its spring.

locking bolt.

bore and having'a key slot extending there- 7 through, ,a locking bolt operatively associated with the lock cylinder inner end, and I means interposed betweenthe lock cylinderand l ocking bolt to prevent the insertion of an instrument through the.key slot to actuate the locking bolt. j

13. In' a lock, amounting head having a central bore, a lock cylinder rotatable in the bore'and having a key slot extending therethrough, 'a locking bolt operativcly associated with'the inner end of the lock cylinde'r, and a washer'member'interposed.between the end of the lock cylinder and locking bolt to prevent the insertion of an instrument through the key slot to actuate the locking bolt.

1.4. In a lock of the character described, a cylinder mounting head, a lock cylinder ro-' tatably mounted in the head, an approximately Y shaped member transversely slidable in the mounting head adjacent the inner end of the cylinder, the leg of the 'Y forming alocking bolt adapted to be projected beyond the periphery of the mounting head,-

guide ways in the mounting head in which the arms of the 'Y are guided, and means whereby rotation of the cylinder aetuates the 15. In a lock cylinder mounting head, a lock cylinder rotat-ably mounted in the head, an approximately Y shaped member transversely slidable in the mounting head adjacent the inner of the character described, a a

end of the cylinder, the leg of the Y forming alocking bolt adapted to be'projected beyond the periphery of the mounting head, guide ways in: the mountin head'in which the arms of the Y are gui ed, an'expansile spring confined between the arms of the Y shaped member and compressed between the transverseportion of said member "and the mounting head to normally, yieldably urge the locking bolt outwardly otthe mounting head, and means whereby rotation of the cylinder retracts the locking bolt.

16. In a lock, a lock cylinder mounting head having a-central bore and a slot traversing the bore, a lock cylinder rotatable in the bore andhaving a cam extended therefrom, a locking bolt stamped from sheet metal. mounted in the transverse slot and adapted to be inserted therein from one end,

means yieldably urging the locking bolt into engagement with the lock cylinder carried cam, and means readily detachably securing the yielding means in position whereby the locking bolt may be readily removed to permit removal of the lock cylinder from the mounting head, rotation of the lock cylinder moving the locking bolt by means of the cam.

17. In a. lock, a lock cylinder mounting head havin a central bore and a slot travg ersing the bore, a shoulder partially closing thecentral bore, a lock cylinder rotatable in the bore and adapted to be inserted therein from one end, the mounting head shoulder preventing outward movement of the lock cylinder, a locking bolt mounted in the slot inwardly of the adjacent end of the lock cylinder to prevent inward movement of the lock cylinder, the locking bolt being inserted in the slot from one end thereof, cooperating means carried by thelock cylinder and the locking bolt and normally in engagement whereby rotation of the lock cylinder moves the locking bolt, and means yieldably and readily detaehably in engagement with the lock cylinder carried part whereby the entire mechanism may be disassembled by releasing thedetachable means to permit the removal of the locking bolt from the slot and the lock cylinder from the central bore.

'18. In a cylinder look, a supporting memher, a key controlled cylinder movable in the supporting member, a locking bolt stamped from sheet metal and operable by the cyl- I inder and mounted within the supporting member in the path of removal of the cylinder, and means whereby the locking bolt holds the cylinder in proper assembled position with the supporting member 19. In a cylinder lock, a mounting meniber, a cylinder movable in the mounting member, a stamped metal locking bolt remov- EDWARD N. JAcoBL

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