US1432785A - Lock - Google Patents

Description

A. RE.

LOCK. APPLICATION FILED Dsc. 23. |920.

19432;785. Patented ot.24,1922.

3 SHEETS*SHEET I LOCK. APPLICATION FILED DEC. 23. 1920.

Patented Oct. 24

1922. 3 SHEETS-SHEET 2. 5d

31a/vento?,

/L F550 RE A. RE.

LocK.

l APPLICATION FILED DEC. 23, |920.

1,432,785. Patented oct. 24g-1922'.

3 ASHEETS-SHEET 3. m. 7.72?

Patented Get. 24, 1922.

ALFRED RE. OF NEW YORK. N. Y.

LOCK.

Application filed December 23, 1920.

To all fui/1.01m, t may concer/n:

Ee it known that I, ALFRED RE, a citizen of the United States, residing at New York. in the county of New York and State of New York. have invented certain new and useful Improvements in Locks; and I do hereby declare the Yfollowing lto be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

vrlhe present invention relates generally to `ke;#controlled locks, and more especially to the type of lock disclosed in my Patent No. 1,183,194, granted May 16, 1916.

lt is an object of the invention to provide a lock of novel and improved construction and havingl a novel assemblage and relation of the component elements. whereby the lock is especially useful and eiiicient.

Another object is the provision ol? a lock including a key-operated device to be disposed at one side of the door or other-object, a latching device to bedisposed at the opposite side of the door' or object, and a novel operative c-onnection between said devices whereby the latching device is readily controlled by a proper key or keys, and also enabling the lock to b e applied to doors or objects of different thicknesses.

A further object is the provision of a simple and inexpensive member for vattachment to the inner end of a key cylinder andhaving means for engagement with a rotary part of a latching device to operate or control the device Jfrom said cylinder, and adapted for making the connection when said part and' cylinder arev spaced different distances apart, such as when used on doors orA objects of various thicknesses.

A still further objectis the provision ot novel means for mounting a latch for swinging movement, to be raised or swung to releasing position either bvy hand at the corresponding side of the door or object or by the aid of a key at the opposite side of the door or object, including a novel connection between such latch and the key-controlled device whereby the latch can be moved te releasing position even though such device cannot move.

Another object is the provision 01' novel Serial N0. 432,751.

means under the control of a key for engaging the latch to prevent movement thereoi' to releasing position, and so arranged that such means can be locked, when the key is withdrawn, in either position to permit movement of the latch or to prevent movement thereotl without the use of such key, in addition to another key used for moving the latch.

lith the foregoing and other objects in view, which will be apparent as the description proceeds, the invention resides in the construction and arrangement of parts hereinafter described and claimed, it being understood that changes can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, wherein Figure 1 is a front view showing the face of the lock and the outer ends of the two cylinders.

Fig. 2 is a rear or inner view of the lock.

Fig. 3 is a horizontal sectionoii the lock, portions being shown in full.

F ig. t is a rear view showing the latch raised, portions being removed and broken away to show the connection between the latch and its arbor or shaft.

Figs. 5, 6 and 7 are sections on the respective lines .f1-*5, 6 6 and 7 7 oi' Fig.

' Fig. Sis a. sectional detail on the line 8-8 ot' Fig. 2 showing the manually-operated means for holding the latch in either position.. portions being shown in full.

Fig. 9 is 'a sectional view on the line 9 9 of Fig. 8.

Fig. 10 is a perspective view of the bushing ot' the means shown in Figs. S and 9.

Fig. 11 is a section on the line 11-11 ot F ig. 6.

Fig. 152 is a sectional detail on the line ifa-1e of Fig. ii.

Fig. 13 is a perspective view ot the bushing ot' the means shown in F 12.

Fig. 14 is a top view showing Va modified :form ot lock.

Fig. 15 is a tace or trent view o'l" the modiication showing the single key cylinder.

Fig. 16 is a detail Vview o'l one ot' the couplinpT members attachablc to the vkey cyliiiders.

Fig. 17 is an elevation oit such member showing the full-length tongue or extension thereof which can be broken or cut ott to accommodate doors or objects of the ditterent thicknesses.

The key device ot the lock comprises a block or body 22 to extend within an opening 21 in the door or other object 20, and said block has a marginal flange 23 at its outer end tobear against the outer side of the door 20, and provide a tace plate on the exterior. A pair of parallel key cylinders or barrels 24 and 25 are mounted to'r rotation within the block 22 with their inner ends extending from the block, and the torward or outer ends ot said cylinders have flanges 2G seated within the block, to prevent said cylinders from moving inwardly. Each `ot said cylinders or barrels has a longitudinal key-receiving slot 27 ot suitable cross-sectional form, whereby keys 28 and 29 oit similar cross section can be slid .into said cylinders, and said keys have linger pieces 30 ot' different outlines or otherwise distinguished from one another, whereby the keys can bc used without contusion with such double-key arrangement. A longitudinal series of tumblers 31 is provided for each cylinder and said tumblers are slidable radially within the cylinder at one edge ot the key slot 27 -to be engaged by the notched or irregular edge of -the key, whereby to require a key to correspond with the tuniblers, in order to turn the cylinders. The block 22 has bores 32 leading radially trom the key cylinders and in which cooperating tumblers 33 are slidable and said tumblers 33 are moved against and into the cylinders by coiled expansion springs 3st. within said bores continedibetween the tumblers 33 and plugs 35 secured in the outer ends ot said bores. Such tumbler arrangement is well known, and it will be readily understood that when a cylinder' is turned to a position with its tumblers 31 registering with the corresponding tumblers 83, and. the key s withdrawn, the springs 34 will urge the tuinblers 33 into the holes in the cylinder, thereby pushing` the tumblers 31 farther into the cylinder and into the key slot 27. Thus, the tumblers 33 in entering the cylinder will prevent the cylinder from being turned, but when the proper key is inserted, the notched or toothed edge thereof will slide the tumblers 31 away from the slot 27 and push the tumblers 33 out ot the cylinder, with the division line ot the tumblers coinciding with the surface ot the cylinder, so that said cylinder can be turned.

It will be noted, however, by reference to Fig. 7, that two sets ot tumhlers 33 are provided in the block 22 tor the cylinder 25` and are disposed at an angle with one another, whereby the cylinder 25 can be restrained in either corresponding angular position when the key is withdrawn. Thus, when the cylinder 25 is turned to bring the slot 27 to horizontal position, as seen in F ig. 7, with the tumbler-s 31 cooperating with the horizontal set of tumblers 3'3, then the ,cylinder will be locked inthis position when the key is withdrawn, whereas when the cylinder is turned to bring the key slot vertical with the tuinblers 31 at the top, said tumblers will cooperate with the vertical tumblers 33 above the cylinder to hold the cylinder in corresponding position when the key is withdrawn. The tumblers 31 ot' the cylinder 25 thus cooperate with both sets ot' tumblers 33, under the control of the same key.

In order to tasten the block or member 22 in place, an anchor plate 36 lis seated against the inner side ofthe door or objectover the opening 21, and anchor screws 37 are inserted through said plate 36 `and screw` threaded into the inner end ot the block 22. with the heads ot the screws seated in said plate 36, whereby the screws in being tightened will clampthe flange 23 ot' the blocl' 22 and the plate against the-opposite sides ot the4 door. This will prevent the block 22 troni being removed from the exterior ot the door, and the latching device, which. will be described presently, can also be readily applied and removed as a unit, without interference orwithout disturbing the key device.

'lhe latching device comprises a plate 38 to bear against the plate 36,and secured to the door 2li by means of screws 39 extending through suitable apertures in the plates 35 and 3G and threaded into the door. Said Vplate BS has an arcuate boss 40 outstanding therefrom with an opening l1 between vthe cuds thereot, and a plate ordisk 42 is secured to said boss by means ot screws 43 or the like. An arbor or shaft 414e is mounted to rotate within the plates 36. 38 and 42 centrally thereof, and one end portion of the latchet is mounted on said arbor loosely, whereby said arbor canturn and the latch swing independently ot' oneanother. Said end portion 'ot' the latch extends within the boss 4f() through the opening Ll1, and projects radially. A bushing 46 is'pret'erably secured within `theI `plate 3() in which the arbor els-l is rotatable. and saitlbushing may lit into the plate 36. as seen in'Figs. 3 and.

The latch 45 is thus mounted for swinging movement. and, as shown, projects beyond the edge ot the door 2O to engage a keeper 47 projecting inwardly from the door 'trame 18. As shown, said keeper has a'portion 49 fastened by screws or otherwise to the jamb ot' the door `trame, and'has an angular flange 50 overlappingand secured tothe inner face Y ot the door trame.l Said keeper lhas a notch 51 into which the latch 45 drops when the door is closed and said latch also has a notch 52 to engage the keeper 47,.whereby to prevent the latch being withdrawn from the keeper by prying. the door away from the frame, such as by means of a jimmy A guard plate 53 is also preferably secured to the inner side of the door 20 to bear against the keeper 47 and extends across the gap between the edge of the door and frame, to prevent the insertion of a knife, wire or other implement for the purpose of raising or releasing the latch. The latch 45 has a knobV or finger piece 54 extending therefrom to conveniently raise the lat-ch by hand at the inner side of the door, and said latch is arranged to swing downwardly by gravity to latching position, and it will be noted that the swinging movement of the latch is limited by the ends of the boss or rib 40. l

The ylatching device has a night latch means'operable at the inner side of the door to hold the latch in engagement with the keeper, to prevent the latch from being raised by the key, and to also'enable. the latch to be retained in raised or releasing position if desired. Such means includes a sleeve or bushing 55 screw-threaded or otherwise secured to the plate 42 adjacent to the opening 4l of the boss 40, and a plunger 56 is slidable in said bushing and has a stem 57 projecting from said bushing and on which a knob 58 is secured for manual operation. A coiled expansion .spring 59 disposed on the stem 57 within the bushing is confined between the plunger and a shoulder in the bushing, whereby to exert a tension to move the plunger 56 toward the latch In order to retain the plunger in retracted position, the stem 57 and knob 58 have a lug 60 to bear` against the exposed end of the bushing 55, which has a notched cam portion 6l. Thus, when the knob 58 is turned to let the lug 60 move into the portion 6l, the spring 59 can move the plunger 56 into engagement with the latch, and by turning the knob in the proper direction, the lug 60 in riding along said portion 61 will retract the plunger' from the latch and hold said plunger retracted. The latch 45 has a socket or recess 62 to receive the plunger 56 when the latch is in lowered position. whereby the latch is heldin engagement with the keeper. and can not be released from the exterior of the door, excepting when the plunger 56 is retracted from the inside, thus providing an effective night latch. rlhe latch 45 Yhas a/second socket or recess 63 to receive the'plunger 56 when the latchy is raised, whereby to hold the latch in such position, when it is desired to keep the latch from engaging the keeper.

The latching device also has a somewhat similar holding means for the latch which, however, is key-controlled to prevent the releasing of the latch without the aid of a proper key. Such means includes a sleeve or bushing 65 screw-threaded or otherwise secured to the plate 38 adjacent to the opening 4l of the boss 40, and a plunger 66 is slidable in said bushing and has a. stem 67 projecting from the bushing toward the block 22, and the end of the stem 67 has a diametrical slot 68 for the engagement of a member to turn the plunger 66. A coiled expansion spring 69 surrounding the stem 67 within the bushing 65 is confined between the plunger 66 and a shoulder in the bushing, to yieldingly move the plunger against the latch, and pin 70 secured in the stem 67 bears against that end of the bushing opposite to the latch. Such end of the bushing has a notched cam portion 71 in which the pin 70 is movable, and the cam portion will result in the plunger 66 being retracted when the cam 67 is turned in one direction, due to the riding of the pin 7() on the cam away from the latch. Then the stem is turned inthe opposite direction, the spring 69 can project the plunger into a recess or socket 72 in that side ofthe latch opposite to the side having` the recesses or sockets 62 and 63. The plunger 66 is thus movable into the socket 72 of the latch when the latch is in latching position, in order to hold the latch in such position and prevent raising thereof until the plunger 66 is retracted.

Coming to the operative connection between the key and latching devices. coupling members for that purpose are used between the key cylinders or barrels and the latching 100 device. In the arrangement described and shown, the arbor or shaft 44 is in alinement with the key cylinder 24, while the stem 67 of the plunger 66 is in alinement with the key cylinder 25, and the end of the arbor 44 which projects toward the lock 22 also has a diametrical slot 7 3, resembling the slot 68 of the stein 67. A couplingr member is secured tothe inner end of each key cylinder for connection with the corresponding part of the latchlng device. As shown, this member includes a cap 74 fitted on the inner projecting end of the key cylinder andv secured thereon vby means of a set screw 75 carried by the cap, although other securingl means can be used, and to also prevent the outward movement of the cylinder in the block 22. The cap 74 has a flat tongue or extension 76 projecting therefrom along its axis to enter the corresponding slot 68 or 120 73. As shown in Fig. 17, this tongue 76 of the coupling member can be of maximum length before applying the lock to a door. in order that the tongue can be shortened or cut down to the required length, according to the thickness of the door, to take up the space between the key and latching devices. To facilitate the shortening of the tongue. it has transverse nicks or grooves 77 at spaced points along its length, whereby the tongue can be broken oil or cut oli' by a file, saw or other suitable implement. In this manner, the coupling members enable the key and latching devices to be used on doors or objects ot different thicknesses, and said coupling members can be broken or cut ntf tothe required length, whereby when the caps 76 are secured on the ends of the key cylinders, the tongues will enter thev slots 68 and 73 of the plunger 67 and latch arbor 414, respectively. Said lcoupling members are cut down to required length and the caps 74 thereof secured on the cylinders before the device is applied to the door, and then when the latching device is applied., thc arbor tl and plunger 67 in passing through openings inthe plate 3G will move into engagement with the tongues T6 ot' the respectivey coupling members, thereby connecting the latch 45 and plunger 66, r'espectively, with the key cylinders 24 and 25,

In order that the latch 45 will be turned with the arbor 44: and cylinder' 24 to r'eleasing position, and to also enable said latch to be raised by itself, a pin 'T8 is car'- r'ied by the latch and enters an arcuate groove 79 in the arbor, as seen in lFig. et, and said arbor has a portion 8O at one end ot the groove to contact with the pin 78 and raise the latch when the arbor is turned in one direction. In raising the latch by itselt', the pin 'T8 can readily move into the groove 79 away from the portion 80, without requiring the arbor le or the key cylinder 24 to turn, inasmuch as said arbor and cylinderare held in fixed position when the key 28 is Withdrawn.

In some cases it may be necessary to limit the turning movement ot the key cylinderl accurately, and this may be accomplished by having a lug 8l project trom the cup '74 of thecorrespondingr cylinder,l as shown in connection with the cylinder 24, to strike a stop pin or lug 82 carried by the block 'or member' 22, when the cylinder.' is turned to a position for the removal of the key.

The operative ot' the lock will no doubt be obvious tothose skilled in the art, from the foregoing description. but briefly described is as follows: The key 2f) can be Withdrawnl in either position of the cylinder 25, with the plunger 66 in or out of en gagement with the latch, and said plunger will be prevented from turningbecause thel cylinder 25 is held in either position by the corresponding tumbler-s 33. Therefore., if the plunger 66 is in engagement with the. latch 45, it is first necessary to insert the key 29 and turn the cylinder 25.whereby the stem G7 is turned to retract the plunger 66. The key 28 is then inserted and turned Iwhereby to raise the latch 45, and enable the door to be opened. In closing the door, the latch 45 will drop into the keeper, and the door cannot be opened trom the outside without the aid of thevkey 2S. The4 key 28 can also be inserted and turned, so as to turn the stem GT and permit the plunger' 66 to enter the socket T2 ot' the latch` and the key in then being Withdrawn, will lock the plunger 66 in such position, therebyrequiring both keys to unlock the door, Whereas when such key 29 is Withdrawn with the plunger in retracted position, only the key 28 is necessary. Thenever the latch is released, it can ybe `raised at the inner side of the door, and the night latch .plunger 56 can `be used whenever' desiredfor holding the latch either in latching or' releasing position.

lVith the present construction, the key and latching devices are' separate units which are comparatively simple in construction, and they can be readily applied to doors of various thicknesses, andthe corr pling members provide convenient and e'ticient means 'for connecting said devices.

ln Figs. 11i and lina modified form of lock is shown which eliminates the plunger 66, key cylinder 25 and corresponding parts, and the lock is substantially t-he same otherwise. with the one above described, although the block 22 can be smaller inasmuch as it has only the single key cylinder' or' barr'el 2+, therein.

Having thus described the invention. what is claimed as new is:

l. A lock con'rprising a block, a pair of key cylinders mounted Jfor turning movement in `said block, key-controlled detent means tor preventing the turning movement o'l"` said cylinders, an arb-or mounted tor turning movement connected to one ot said cylinders, a latch mounted on said arbor, and a plunger mounted tor turning movement to engage and disengage the latch and connected to the other cylinder.

A lock comprising a key device having a rotatable key-cylinder, a latching device having a rotatable member with a slot therein, said devices being capable of being secured to the opposite sides of doors or other objects ot' different thicknesses, and means for operably connecting said cylinder and member ior rotation one with the other' including a coupling member' to be disposed between said cylinder' and member having a cap to tit over the inner, end of said cylinder and a rigid tongue-projecting from said cap` the cap having means for clamping it on said cylinder', and said Vtongue being ot a length to enter said slot.

3. A lock comprising a block, a key c vlin der mounted for turning movement therein. a latchingc,r device comprising a latch and a plunger mounted for turning movement to engage and disengage the latch for holding or releasingr it. respectively, said plunger being connected with said cylinder to turn therewith, means for moving a latch, a set of tumbxei's carried by said cylinder, and name to this specification in the presence of two sets of tumblers mounted 1n said block two subscribing; witnesses. for cooperation with the key cylinder tumblei's in two different positions of said cylin- Y* ALFRED RE' 5 der with said plunger either engaged with Vitnesses:

or disengaged from the latch. LAURENCE DoYLE,

In testimon r whereof I have si ned m JOHN FITZPATRICK.

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