US845613A - Lock. - Google Patents

Description

10.845,613.- PATENTED FEB. 26, 19o?.

v Y. -Q. GALDWELL.

LOCK.

APPLICATION FILED MAE. 17| 1906.

. latch-bolt operative under such conditions by UNITED STATES PATENT oEETCE.

YANCEY Q CALDWELL, or Pinus, TENNESSEE.

Lock.

Specification of Letters Patent.

Patented Feb. 26, 190'?.

1 Application ned March 17,1906. serial NQ. 306,623.

To all whom zltmwy con/cern;

Be it known that I, YANoEY Q. CALDWELL, a citizen of the United States, residing at Paris, in the county of Henry and State of Tennessee, have invented new and useful Improvements in Locks, of which the following is a specification'.

This invention relates to locks,- particularly of the mortise type, though the same structure can be embodied in a surface lock.

The improved lock is of the springless construction and embodies a sliding bolt member which'serves in the dual capacity of a locking-bolt, in conjunction with other controlling mechanism, and also a door-latch or a rotatable knob and spindle.

The primary object of the invention is t provide a lock having a simple construction of a durable nature and which may be cheaply produced.

In the drawings, Figure 1 is a plan view of' a lockwith a part of the casing removed and embodying the features of the invention.

Fig. 2 is a similar view with a part of the casing removed and showing the bolt projected. -Fig: 3 1s a transverse vertical section on the line 3 3, Fig. 1 of the complete lock. Fig. 4

- is a detail perspective view of a portion of the lock. Fig. 5 is a detail perspective view of the particular form of key for the lock.

Similar numerals of reference are/employed to indicate corresponding lparts in the several views.

The numerals 1 and 2 represent front and back portions of the casing, having suitable width and length and ,preferably formed as separable sections for convenience 1n assembling the parts ofthe lock. Thefront l .of the lock has formed therein a boltway 3 eX-L tending. longitudinally-l thereof .and in alinement with a bolt-slot 4 in one .end of the said front. The upper part of the front 1 is also f provided with an interior recess 5 offsubstantiallyv rectangularcontour and having a central arcuate counter-recess 6. .The recess 5 communicates with the inner space of the front 1 adjacent totheboltway 3 and-is ini'ftended to receive a bolt-controlling device, y which is actuated by a knob and spindle ina manner which will be-more fully hereinafter specified.

. In both the -front and rear sections 1 and 2v of the lock-casing upper transversely-alined openings 7 and 8 are formed, and directly below the same and in vertical alin'ement' withl 'the centers thereofare keyhole-openings A10 and 11. Within the openings 7 and S vand inclosed by the sections 1 and 2'is a rotatable sleeve 12, having a squared opening 13 therethrough and an integral toothed segment 14. A squared knob-spindle 15 is inserted through the opening 13', and on opposite' extremities of said spindle are knobs 16 and 17, the knob '17 being removable for obvious reasons.

The inner surface of each front and rear section 2 around the keyholes 11 and 12 is formed with cavities, as at 18 and 1 9, and

through a portion of the cavity 18 a supporting-partition 20 is located and has a central circular seat 21 near its upper edge and carries below the said seat projecting pinsv 22 on opposite sides of the vertical center thereof,

which extend outwardly from opposite sides -of said partition.

` The partition 20 is formed by Ireducing an intermediate portion of a bar or member 23, which is suitably secured 1n the casing against the front section 1, and, in addition to the circular seat 21, the upper edge of the partition has recesses 24 on opposite sides of the seat to permit ample movement of a bolt-controlling member or tumbler 2 5, having a tubular fulcrum-knuckle 26 at its. inner extremity, which is freely movablein the seat 21, and an outer segmental member 27,'

formed with a slot 28, extending therethrough in radial relation to the knuckleto allow the said segmental member to move over opposite vportions of the partition 20. The maximum movement of the bolt-controlling member ,or tumbler as an entirety ino posite directions provides for clearancep' the same from the under edge of a bolt 29, slidably disposed in the boltway 3 and having one end thereof movable inwardly and .outwardly through the bolt-slot 4. The bolt 29 in its under edge is formed with a curved. slot 30, merging into a vertically-strai ht shoulder 31, against which the segmenta member 2 7 of the tumblerl is adapted to contact. The

.shouldered portion 31 of the bolt depends below the rear part of the lower edge of said bolt to enable the segmental member 27 j to have-positivecontact with said shoulder and also .to permit said segmental member to be fully withdrawn from the rear portion of the slot 30 during certain operations ofthe bolt through the medium of the knob-spindle 15, the rotatable sleeve 12, and toothed segment 14. The too'thed segment k14 is .held in continual mesh with a series of rack-teeth 32m IOO IIO

the` upper edge of the'bolt 29, directly over the slot 30, and by this means thebolt can be' o erated by turning the knob-spindle.` The l() the o en ings and 11, and the stem 33 en.

ters t e 'tubular knuckle 26. The bit 34 is adapted .to contact with either side edge of the rear portion of the segmental member 27, and when it is rotated the said segmental member or the bolt controller or tumbler complete is shifted from one side tothe other of the seat 21 in accordance with the direction of movement of the key. The studv 35 on the bit bears against the opposite side edges of the segmental member-'27 to insure a more positive operation of the controller or tumbler, and said stud iS in such position that it will pass the projectingends of the pins 22. These pins 22 prevent the use of any key other than one particularly formed for operating the lock and as just'described, and 1t is obvious that a key with a wider bit would be stopped in its movement by the ms. 'p In ordinary operations of thelock or when it is undesirable to secure the bolt 29 against movement by the operation ofthe bolt controller or tumbler, includi the segmental member 27, rotation of the ole-spindle 15, will actuate the sleeve .12 and the toothed segment 14, and consequently move or slide the bolt 29, the movement ofthe said bolt in opposite directions being of course controlled by a corres `hen it is desired to lock the bolt against movement, the key is -rotated to bring the bit 34 thereof in contact withthe bolt-controller or tumbler and to` throw 'the segmental memberv 27 forwardly against the shoulder 31, such movement o'f-the tumbler causing the bolt 29 to be projected and b e retained in. proj ected' locked position until a lreverse-'movement of the key and the segmental member 27 is set up, and in this reverse movement the segmental member strikingtherear wall of t e slot 30 Willsimultaneously draw `the bolt inwardly into the locksJ4 casing, and at the same time the' secondary member 2.7 will be thrownl around, clear'of vided without the use of the lower edge of the bolt and .aga-in permit the latter tospindle, as before explained. v

From theforegoing itwill be seen that a p ositively-operatingv means for a bolt is pro- .springs or other fragile or readily-breakable parts and by the improvedl organization lock Lstructures may` vbe rendered'` more durable and positive in their operation. f

Oneof the most essential features of the lock is thatin the operation of the bolt-con- 1 vid controller to engage the slot in t ponding rotation ofthe knob-- -bolt by a movement of t opposlte direction.

`tion of the upper edge be operated solely by the knoba reduced stem to .may be used.

As a safety means the lock is also advantageous' in that a particular form of key is required to operate the same and means proed for preventing the use of a key having abit other than the formprescribed.

Though the preferred form of the lock has been set forth, it is obvious that changes in the proportions, dimensions, and minor detailsl may be resorted to without departing from the spirit of the invention.

Havin thus described the invention, what is claime is-e 1. In a lock, the combination of a casing, a

springless bolt sli'dably mounted inthe casing and having teeth in the intermediate portion e upper edge thereof, a 'slot in the lower edge directly underthe teeth, the slot having a front vertical wall, a knob-spindle carrying.

a toothed segment held in continual mesh with the teeth of the upper edge of the bolt, anda reversely-movable key-operated bolte lower edge of the `bolt and operating to draw the bolt into the casing in its releasing movement, the controller engaging a portion of the front vertical wall of the 2. In a lock, the combination of a casing, a springless bolt slidably mounted in the casln and having a lower slot with a front vertica wall, the front wall ofthe slot depending besame, and a key-operlow the rear wall ofthe ative controller disposed to engage the slot of s lot to hold the bolt in immovable locking `position and also completely Aclearing the bolt when the latter is released.

the bolt and operating to lock the latter when projected by movement of the controller in one direction and releas' and indrawing the m'clie controller in an 3. In a lock, the'combi'nation of a'casing, a springless bblt slidably mounted therein and provided .With teeth in the intermediate porthereof, and a slot in the lower portion directly under the teeth,l the front wall of the slot being extended -downwardly'below the rear walll of the same,

a knob-spindle carrym a toothed se ent to engage the teeth of thge bolt, and agfllimbler movable in opposite directions and disposed to engage the slot bolt to either lock the latter when in project' edv position or'release said bolt, said tumbler being adapted to be engaged by a key having. enter a part of the tumbler, and a bit to co erate with the remaining part of said tumb er.

'4. In. a lockLthe combination of a casing, a

in the lower portion ofthe springless bolt slidably mounted in the casing and having teeth in the upper edge thereof, and a slot in the lower ortionlimmediately below the teeth, the said) slot having a front wall depending below therear wall thereof, a

knob-spindlecarryin a toothed segment continually heldin mes with the teeth in the upper edge of the bolt, and a key-operated' segmental tumbler movablein op osite d1- rections anddisposedto enter the s ot of the bolt and engage the Jfront depending wall of the said slot to hold the bolt in locked position, the tumbler being cleared from .the slotfwhen the bolt is withdrawn or released.

-engaging both the knuckle andthe segmental 6. In a lock,.the combination of a casing, a springless bolt slidably mounted in the casing, a partition in the lower art of the casing'` having a seat therein an recesses on opposite sides ofthe seat, a bolt-controller having a tubular knuchleto engage the seat, and al slotted segmental member movable'in oppojected site directions and dispos-ed to contact with theunderportion of the bolt, and a key havy bit witlra projection to engage the said segmental member of the controller. v

7. In -a lock, the combinationpf a casing, a

springless'bolt slidably mounted therein and having a slot in the lower edge thereof, a tumbler movably held to lengage the slot of the bolt and shiftable in opposite directions'in an .ing a reduced stemto iit in thelknuckle and a arcuate path, the free end of' the tumbler be-l l 4ing adapted to bear against the front wallof the slot of the bolt to lock the latter in prodposition, said tumbler being also adapte to have its opposite side edges enositions with relationz and adjacent to the lcrum of the tumbler and projecting in the ldirection of the path of movementof the bit ofthe key to prevent the insertion of any key gaged by a key, and pins located in opposite other than 'that particularly prepared for opy erating'the tumbler.

In testimony whereof my hand in presence of two subscribing witvANcErA Q. CALDWELL.

Witnesses:

' A. B. MITCHENER, W. N.,BA1 :HAM.

I have hereunto set

Images