US1134791A - Lock. - Google Patents

Description

/P a 3f G. w||TALA. Loon.

APPLICATION FILED DEC- I3, I9I3 1 l 34,791 Patented Apr. 6, 1915.

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G. WIITALA.

LOCK. l APPLICATION FILED DEC. I3, I9I3. 1 ,134,7 91 Patented Apr, 6, 1915.

3 SHEETS-SHEET 2'. 1547.4.

THE MORRIS PETERS C0.. PHOTO-LITHO.. WSHINGYUN. D. C.

G. WIITALA.

LOCK.

APPLICATION FILED DEc. I3, 1913.

1,1 34,?91 Patented Apr. 6, 1915.

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l /I 7 I III/@III UNITED sTATEs PATENT oEEioE.

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Specification kelf:Letters Patent.

Petentel'epr. e, 1.9115.-

eppneaeon exea. December.: 1e, me. enel Negotiate T0 all whom t may concern:

Be it known that I, Gns'r WIr-rena, a-

Citizen 0f the Unitedl States, 'residing et 01.1: l

before the latter may be moved to uncever the keyhole so'that thekey may be intro. duced into the lock.

The invention further provides a lock embodying a supplemental lock bolt` which is adapted to be actuated by means of a spin,- dle, said spindle being accessible and operable only when the guard is moved toa predetermined position so as to uncover a nger piece which automatically springsl into position to be conveniently grasped, for` throwing the supplemental lock bolt, When the supplemental lock bolt is shot into locking position itis absolutely necessaryA toi throw the same before the part to which the lock is attached may be opened even., though the main lock bolt is thrown. The supplemental lock bolt is adapted to be oper-y ated by means of a spindle forming a part of the lock mechanism in contradistinction A to the main lock bolt which is key operated.

The invention consists of thenovel feaf tures, details of construction and :combina-n tion of parts, which hereinafter will be more particularly vset forth, illustrated in the aecompanying drawings andl pointed *out inv the appended claims.

Figure l is a view in elevation o f a lock embodying the invention. Fig. 2 is a side view of the lock with the guard plate moved so as to uncover the keyhole. Fig. 3 a view similar to Fig. 2 showing the guard plate moved farther so as to expose the iin-V ger piece, whereby the spindle is operated for throwing the supplemental lockbolt. Fig. 4 is a view in elevation having the re-.

movable plate closing the open Aside of the.

lock case omitted. Fig. 5 is `a transverse section on the line 5445 of Fig. 4. Fig. 6 l

is a horizontal .SCCtionlon thelin'e ,ffof

l Fig. 4. Fig. 7 is a detail view the side`,

plete eff thelel eeeef Showing the keyhole,

the key elberliiellfl elevetiee and the pree- Sule. bleek 'held .yielding-ly eeanet tle 'Het Sides eflthe lrev erhellt-,te held' .the Semefi Dermal position? AFla ieee detailveiv eff e pertefthe geelilrlete' having the reeeee ferreeeivrie the .raised par-t ef the, leek Pin tumbler'.- ensl .hevige the eblene @peiling inwheh theleek. pie eleeratee-` 'Fie 9 ie e vienT in elevation of the reverse Side of the leek, Pie-tumbler ehewing .theratehef end they vielflable detente fee eeperaten with they .leek eine Fig l0? ie en enlarged seetifen en the line 23e-Zeef. Fi-g- 8f Fia '11 is 'all enlarged, Seetene the-line 2li-2e el Fig- 1 0f ene eide elf-the' leekv @eee and the parte attachedjthereto. Figy 1 2 .is an enlarged.

View eef ehe. ne; pm tumbler sawing. the lock ,pin in section `and the pressure blocks fozrftaining suchlock pin-"in the desired `reeitelue 'lue 131e an enlarged. eeeten .en

to in thefollowing description and 'indi-f cated' in all .the vewe el fthefflrevlnse-by theeeme refereeeeeheeeetere- The lmeneer-el sleegnetee Vthe `leek eeee Wheh heueee the.l Werking vleerte eed which lmay be. of 4,con.structioni yor finish cac- Cereerendingfeed like parte ere refelveel` cordingtothe character of the lookin merketelele feirli.- 'Qhefede O fftheleek ease is eren. te admit 0f. eeeeee tothe interior thereof for P leeinel theywerfkeg Perte in. position er t0 admit 0f eeeeee te eueh parte for repairs. A plate closes the open side of thelcase. The keyhole is formed in the Sideplateeef the eeee and Seel kevhele hee. its eye enlarged toreceive the reduced end 4 ofthe key erber '5, the letter beine ieurnele-el. in the Side Plates ef the ease 'here ins epreelte Side Portions '0f its rounded ende eet ewev te ferm flat feees @against Wheh Pressure, b1eeke7 ere edeptefl te beer .e0 ae te .hel-el the ker erborie normal peeitien-` Tlle Pressure bleekei? ee Well eetlief .Springe 8 are leeeteel in reeeeeee 9 ferme@ in the eater faeee ef the .eide platee ef.-Y the leek case.Y The body portion of .the key arbor lite 'betivfeen the eide riletee ef "the" leek eeee .end hee @elet elena ene Side. for the Passage,

of the nib,u of the key, said passage corresponding with the slotof the keyhole 3., Theniain look boltlO is `preferably located in ,thev lower portion kpf the lock case and 'is adapted to be thrown ymeans of .alkey.

The ,eerrileieeetalleelf belt!! ie leeetetl in ico the upperiportion of the .lock case and is adapted to be thrown by means of a spindle l2 which is journaled at its'ends in the side plates of the lock case, said spindle havingl a toothed portion 13 in mesh with a toothed portion 14 of the lock bolt. T he inner end of the lock bolt 11 is supported and directed in its movements by means of a post 15. The spindle 12 is formed with a centrally disposed longitudinal opening in which a pin 16 is adapted to move, said pin having a head at its inner end against which an eX- pansible helical spring 17 exerts a pressure to force the pin 16 outward. A finger piece 18 is connected with the outer end of the pin 16 and serves as means for rotating the spindle when it is required to throw the bolt 11 either into locked position or to retract the same. The pin 16 formed at its inner end with a. head is of noncircular form in cross section which operates within the spindle and causes it to rotate when the pin is turned. The finger piece 18 normally occupies a position in a recess 19 formed in a cover plate 2O arranged eX- erior to the side plate 2. A guard plate 21 arranged exterior to the cover plate 20 is intended to conceal the keyhole and extend over the linger piece 18 and hold the same repressed against the action of the spring 17.v When the guard plate 21 is moved so as to clear the linger piece 18, as indicated in Fig. 3, said finger piece springs outward into a convenient position to be grasped so that the spindle 12 may be turned to admit of throwing the supplemental lock bolt in either position. tion it is arranged with the open side facing outward and the closed side facing inward or located adjacent the door or like part to which the lock is attached. It follows therefore that the guard plate 21 is located against the outer side of the lock case. The inner cover plate 20 extends over the recess 9 and the parts 7 and 8 located in such recess. rIhe usual keyhole guard 22 is pivoted to the plate 20.

The guard plate 21 is movable on the lock Case and carries a lock pin 23 which is arranged to operate in a slot formed in the outer cover plate 20. The lock pin 23 is provided at its outer end with a knob 24 and its inner end is formed with a head 25 which is arranged toA operate in a recess 26 formed in the outer side of the plate 2. The recess 26 conforms approximately to the outline of the slot formed in the plate 20. This slot comprises a longitudinal portion 27, a vertical portion 28 at one end thereof and an off-set portion 29 at the oppositek end. The off-set portion 29 of the slot is located at the inner end and is interrupted by means of a projection 30. r1`he guard plate has a circularl recess 31 in its outer side and a vertical elongated opening 32 TVhen the lock is in posi-r which is adapted to register with the vertical portion 28 and an olf-set portion 29 of the slot formed in the" plate 20. The lock pin 23 passes through the opening 32. A tumbler 33 is mounted upon the guard plate 21 and has a raised portion fitting within the circular recess 31, said raised portion having teeth 31 around its outer edge to be engaged by means of a dog 35 located upon the plate 21 at one side of the recess 31. An elongated opening 36 is formed in the tumbler 33 and receives the lock pin 23 which passes therethrough. When the tumbler 33 occupies a position with its opening 36 in register with the opening 32 and the vertical portion 28 of the slot formed in the cover plate 20 the lock pin may be moved so as to aline with the longitudinal portion 27 of the slot, thereby admitting of the guard plate 21 being moved so as to uncover the keyhole as indicated most clearly in Fig. 2. When the lock pin 23 reaches a point to engage with the projection 30 the keyhole 3 is uncovered but the finger piece 18 remains hidden from use. To disclose the finger piece it is necessary to move the lock pin 23 upward in the off-set portion 29 of the slot thence over such projection and again downward in the rear thereof, and during such movement the guard plate traverses a distance to uncover the finger piece 18 which springs outward from the recess 19 into position to be conveniently grasped for rotating the spindle 12 for throwing the bolt 11. The finger piece 18 is oblong and the recess 19 is of corresponding shape hence when the finger piece is held within the recess 19 the spindle 12 and lock bolt 11 are held secure against movement. lVhen the guard plate is in the position indicated in Fig. 1 and the knob 24 is moved to aline with the tumbler 33 the lock pin 23 occupies a position at the upper end of the vertical portion 28 of the lock pin slot and upon turning the tumbler 33 to throw the opening 36 out ofline with the opening 32 the lock pin is retained in the upper portion of the slot 28 thereby preventing any movement of the guard plate. As indicated most clearly in Fig. 1 an indicating mark is provided upon the guard plate 21 adjacent the recess 31 and the edge of the tumbler bears a plurality of marks one of which when brought in line with the indicating mark on the plate 21 brings the opening 36 of the lock pin tumbler 33 in register with the opening 32 so that the lock pin may be moved from the vertical portion into the horizontal portion of the lock pin slot preliminary to moving the guard plate inward or uncovering the keyhole and the iinger piece of the spindle supporting pin 16. The lock pin 23 is held at either end of the vertical portion 28 of the lock pin slot by means of yieldable detents 37, the latter consisting of short bars located upon opposite sides of the opening 36 and held pressed outward toward each other by means of springs 38. Each of the detents 37 is formed upon its outer side with a projection 39 which slopes in opposite directions toward the ends of the detents. The projections 39 extend inward beyond the vertical edges of the opening 36 so as to engagethe lock pin 23 and hold it in the required position until sufficient force is applied to move the lock pin in the opening 36 by the projections 39.

It will be understood from the forego' ing taken in connection with the accompanying drawings that there is a mutual cooperation between the specific form of key and the particular form of lock mechanism and that each is dependent upon the other for successful operation of the lock. It being assumed that both the main and supplemental lock bolts are projected and it is required to open the lock pin tumbler 33 is turned until the proper indicating mark comes opposite the indicating mark on the guard plate, thereby bringing the opening 36 in register with the opening 32 after which the knob 2li is pressed downward to carry the lock pin 36 from the upper end of the vertical part 28 of the lock pin slot into the lower end of such slot in line with the horizontal part 27. The guard plate 2l being released may be moved inward, the lock pin 23 traveling in the horizontal portion 27 of the lock pin slot. lVhen the lock pin strikes the projection 30 the keyhole of the lock is uncovered. If it be desired to first withdraw the supplemental lock bolt l1 the lock pin is moved upward in the ol'set pory tion 29 of the lock pin slot thence along the 0H set portion 29 of the lock pin slot and down in rear of the projection 30. This brings the guard plate into the position in- Y dicated in Fig. 3 with the finger piece 18 of the spindle operating pin 16 in position to be grasped and by rotating the spindle the lock bolt ll is withdrawn.

Having thus described the invention what is claimed as new, is

1. In a lock, the combination of a lock bolt, a. spindle for throwing the lock bolt, spindle operating means adapted to be moved outward or pressed inward, a spring normally exerting a pressure upon the spindle operating means to throw the same outward, a guard adapted to extend over the spindle operating means and hold the same pressed inward, and locking means for securing the guard.

2. In a lock, the combination of a 'lock bolt, a spindle for throwing such bolt, a finger piece for operating the spindle and adapted to be moved outward or pressed inward, a spring for pressing the finger piece outward, means for engaging the :linger piece when pressed inward to prevent rotation thereof, a guard for holding the `linger piece inward and means for `securing such guard.

3. In a lock, the combination of a lock bolt, a toothed portion formed on said lock bolt, a spindle, a toothed portion formed on said spindle in mesh with the toothed porl tion of the lock bolt, actuating means for the spindle' having a sliding connectionV therewith, a` spring normally exerting a pressure to throw the spindle actuating means outward, and means engaging thev spindle yactuating means for sealing and holding the same pressed inward.

4. In a lock, the combination of a lock case comprising a plate having a slot comprising longitudinal portions, a guard plate slidable upon the lock case and having a vertically elongated opening, a lock pin passing through the opening of the guard plate and the slotin the plate of the lock case, a rotary tumbler mounted upon the guard plate and having an oblong opening to register with the opening of the guard plate, and the slot in the plate `of the lock case and a lock pin passing through the openings of the tumbler and guard plate and slot in the plate ofthe lock case, said lock pin being held in locked engagement with the guard plate and plate of the lock case by means of the tumbler.

5. In a lock, vthe combination of a lock case embodying a plate having a groove therein, a projection. a cover plate having a slot which is provided at one end with a vertical portion and at its opposite end with an off-set portion into which extends said projection, said slot being arranged opposite the groove in the plate of the lock case, a guard plate slidable upon the cover plate and having a vertically elongated opening to register with the vertical portion of the slot in the cover plate, a lock pin passing through the opening of the guard plate and the slot of the cover plate andra rotary tumbler mounted upon the guard plateand having an elongated opening to receive the lock pin.

6. In combination, a lock having main and supplemental lock bars, one of such lock bars being key operated, a manually operable spindle for throwing the other lock bolt, a guard plate for covering the key hole and the said manually operable spindle, and locking means between the guard plate and lock casing ladapted to be intermittently op-v erated to arrest the movement of the guard plate when first moved to uncover the key hole and adapted to admit of a further movement of the guard plate to uncover the said manually operable spindle.

7. In combination, a lock comprising a lock case having a side plate in which is 'formed a recess, a projection, a cover plate having a longitudinal slot provided at one end With a vertical portion and at its opposite end with an oit-set portion into which extends said projection, a guard plate slidable on the cover plate and having a vertically elongated opening, a look pin passing through the opening of the guard plate and slot of the cover plate, a head at the inner end of the pin arranged to operate in the recess in the side plate of the lock Case, a knob at the outer end of the lock pin and rotary tumbler mounted upon the guard plate and having an elongated opening to receive the said lock pin.

1n testimony whereof I aiiiX my signature in presence of two Witnesses.

GUST WHTALA. Witnesses:

A. A. loIvoNEN, LAWRENCE J. MALONEY.

C'opies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washingtom-ID. CJ?

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