US1024468A

US1024468A - Wardrobe-door lock.

Info

Publication number: US1024468A
Authority: US
Inventors: Henry G Voight; Norman B Hurd
Original assignee: Russell & Erwin Manufacturing Co
Current assignee: Russell & Erwin Manufacturing Co
Priority date: 1911-10-27
Filing date: 1911-10-27
Publication date: 1912-04-23
Anticipated expiration: 1929-04-23

Description

H. G. VOIGHT & N. B. HURD.

WARDRGBE DOOR LOOK.

APPLICATION FILED 00w. 27, 1911.

1,024,468. Patented Apr. 23, 1912. I

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WARDROBE DOOR LOOK. APPLICATION FILED 001'. 27, 1911.'

1,024,468. 7 Patented Apr. 23, 19 12.

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UNITED STATES PATENT OFFICE.

HENRY G. VOIGHT AND NORMAN B. HURT), OF NEW BRITAIN, CONNECTICUT, AS-

SIGNORS TO RUSSELL & ERWIN MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

WARDROBE-DOOR LOCK.

Specification of Letters Patent.

Patented Apr. 23, 1912.

T 0 all whom it may concern:

Be it known that we, HENRY G. VoIei-I'r and NORMAN B. HURD, citizens of the United States, residing at New Britain, county of Hartford, State of Connecticut, have invented certain new and useful Improvements in lVardrobe-Door Locks, of which the following is a full, clear, and exact description.

Our invention relates to looks, and is particularly concerned with a lock especially adapted for use on the door of the closet or wardrobe of a hotel apartment.

The object of the invention is to provide a lock having means, whereby, when the dead bolt is projected by the guest key of the corridor door lock, it can not be retracted by the maids or housekeepers key also adapted to said corridor door look.

A further object is to provide means in this look whereby, when the dead bolt is projected by the socalled guard key or emergency key, the door can not only not be unlocked by the maids or housekeepers key, but cannot be unlocked by the guest key.

A further object is to provide means in this look whereby the closet door may be locked by the maids or the housekeepers key when occasion arises, but cannot be unlocked by said keys.

With these and other objects in view, the invention consists in a construction and arrangement of parts, a preferred embodiment of which is illustrated in the accompanying drawings, in which,

Figure 1 is a side elevation of the lock, the cover plate being removed for clear illustration. Fig. 2 is a view similar to Fig. 1, parts being removed for clear illustration. Fig. 3 is a sectional view on the line 33, Fig. 2. Fig. 4 comprises a side elevation and edge view of one of the tumblers of the lower set oftumblers of the lock. Fig. 5. isasideelevation of another of the tumblers of said set. Fig. 6 is a side elevation of a tumbler connecting bar. Fig. 7 comprises a side elevation and edge view of a third tumbler of said set of tumblers. Figs, 8, 9, 10, 11 and 12 comprise fragmentary views of the guest, maids, housekeepers guard and emergency keys showing the bitting thereof, and also showing the construction of the key pins thereof.

In the embodiment of our invention herein selected for illustration, 1 is the casing; 2 the face plate; 3 an ordinary knob latch such as usually found in looks of this type.

at is the dead bolt which is slidably mounted on a stud 5 of the lock case.

Pivoted upon a stud 6 is a series or set of tumblers for the dead bolt, some of which are gated in the usual manner to cooperate with the racking stump 7 of the dead bolt. These gated tumblers also are provided with rear end projections, such as 8, Figs. 1 and 2, adapted to be engaged by the upper end 9 of a tumbler connecting bar 10, Fig. 6. Referring to Fig. 2, it will be seenthat the upper set of tumblers includes what is commonly known as an emergency tumbler 11, having an emergency tongue 12 which cooperates with the racking stump-7 in the manner hereinafter described. In the lower set of tumblers are included several tumblers, such, for example, as 13, pivoted upon a stud 14. The tumblers 13 are each pro vided with a slot 15 adapted to work on a stud 16 also fixed to the lock case. Each of these tumblers also is provided with a second slot 17 adapted to be engaged by a stud 18 on a tumbler 19, Fig. 7, said tumbler having an aperture 20 whereby it may be pivotally mounted upon the stud 16. This tumbler 19 is also provided at the opposite end with a second stud 21 adapted to engage in a slot 22 of a tumbler 23, Fig. 1, which is pivoted upon the stud 14. This tumbler 23 has a rear endprojection 24 which engages a notch 25in the edge of the tumbler connecting bar 10. The tumblers 13 are held in the elevated position shown by means of their springs 13. hen these tumblers 13 are depressed by a suitably inserted key, they rock the tumbler 19 on its pivot 16 whereby said tumbler, through its stud 21, raises the tumbler 23, which in turn, through its projection 24, raises the tumbler connecting bar 10. By the means described, the tumblers of the upper set may be released to permit free movement of the racking stump 7 of the dead bolt when the latter is projected.

The outer or cover plate of the lock 1, Fig. 3, is provided with a double end keyhole 25 opposite one end of which is a key post 26, and opposite the other end of which is a key pin aperture 27. As indicated in Figs- 8 to 12 inclusive, the guest, guard. and.

emergency keys are of the drill pin type and the keyhole 25 is adapted to receive the same in normal upright position, said keys taking over the key post 26. The maids and housekeepers keys are of the solid pin type and the keyhole 25 adapted to receive these keys in invertedposition with their key pins projecting into the aperture 27. The guest, guard and emergency keys operate directly upon the upper set of tumblers. The guest key is so bitted and the upper set of tumblers is so arranged that this raises the emergency tumbler in projecting the dead bolt to the position indicated in Fig. 2 wherein the racking stump 7 lies beneath the emergency tongue 12. The guard and emergency keys, however, are so bitted that when projecting the dead bolt, they do not raise the emergency tumbler and consequently the racking'stump takes a position above the emergency tongue 12. In this position of the emergency tumbler, the dead bolt obviously cannot be retracted by the guest key, consequently when it is desired to lock oi? the closet or wardrobe from the apartment, this may be accomplished by locking the door by means of the guard or emergency key. The maids and housekeepers keys, when inserted in the key-hole 25, operate directly upon the tumblers 13 of the lower set, and the sweeps of these tumblers are so shaped that when the maids or housckeepers key is turned clockwise, as viewed in Figs. 1 and 2, to project the dead bolt, these tumblers are sutliciently depressed to lock the tumbler 19 and through it the tumbler 23 to cause the latter to raise the tumbler bar 10 far enough to free the gated tumblers of the upper set from the racking stump so that the dead bolt may be projected by either the maids or housekeepefis key. The forward portions or the sweeps of these tumblers 13, however, are so formed that when the dead bolt is projected, the maids or housekeepcrs keys cannot depress the tumblers 13 sutliciently to impart the required movement to the gated tumblers of the upper set to free them from the racking stump before the bits of these keys begin to bear upon the tail piece of the dead bolt to retract the same; consequently the dead bolt is blocked against retraction by the fact that its racking stump 7 comes in contact with the gates of these partially raised gated tumblers of the upper set. It will be seen, therefore, that when the door is locked, either by the maids or housekeepcrs key, it cannot be unlocked by these keys. The operations of the tumblers of the lower set, by means of the maids and housekeepers keys, cause the tumbler bar 10 to raise the emergency tumbler in the same manner as it is raised by operation of the guest key, consequently when the door is locked by the maids or housekeepers key, it may be unlocked by the guest key. Again, since the guard and emergency keys operate entirely independently of the emergency tumbler,the door may always be unlocked by either of these keys when locked by any of the other keys of the series.

lVhile we have herein described a particular embodiment of our invention, it should be understood that the same may be altered in detail and relative arrangement of parts within the scope of the appended claims.

hat we claim is:

1. In a lock, the combination with a casing, of a dead bolt, two sets of tumblers therefor, one of said sets including an emer gency tumbler, a connecting bar for said tumbler sets, the second set including a tumbler for operating said bar to actuate said other set of tumblers, said casing having a keyhole on one side thereof, a plurality of keys including guest, maids housekee ers, guard and emergency keys, said keyhole being adapted to receive said guest, guard and emergency keys to operate directly upon one set of said tumblers, said guest key being so bitted as to project the dead bolt and simultaneously raise the emergency tumbler, said guard and emergency keys being so bitted. as to project the dead bolt without raising said emergency tumbler, said emergency tumbler having means to block said guestkey whereby said dead bolt cannot be retracted thereby when projected by the guard or emergency keys, said maids and house keepers keys being so bitted, and the tumblers operated thereby being so constructed, that said keys may project the dead bolt but cannot retract the same.

2. In a lock, the combination with a casing, of a dead bolt, two sets of tumblers therefor, one of said sets including an emer gency tumbler, a connecting bar for said sets, the second set of tumblers including a tumbler for operating said bar to actuate the tumblers of said first set, said casing having a keyhole on one side only thereof, a series of keys including guest, maids, housekeepers, guard and emergency keys, said guest, guard and emergency keys being adapted to operate directly upon said upper set of tumblers, said guest key being so bitted as to raise the emergency tumbler in projecting the dead. bolt, said guard and emergency keys being so bitted as to project the dead bolt without raising the emergency tumbler, said emergency tumbler having means to block the guest key whereby the dead bolt cannot be retracted thereby when projected by the guard or emergency keys, said maids and housekeepers keys being adapted to operate directly upon the lower set of tumblers, said keys being so bitted and said tumblers being so constructed that said keys may project the dead bolt but cannot retract the same, said second set of tumblers and said connecting bar being so arranged that the emergency tumbler will be raised by the projection of the bolt by said maids and housekeepers keys, whereby the bolt may be retracted by the guest key when so projected.

8. In a lock, the combination with a cas ing, of a dead bolt, two sets of tumblers therefor, one of said sets including an emergency tumbler, a connecting bar for said sets, said tumblers of the lower set being arranged to actuate said bar to operate the other set of tumblers, said casing having a doubleended keyhole, a plurality of keys including guest, maids, housekeepers, guard and emergency keys, said keyhole being adapted to receive the guest, guard and emergency keys in normal position to operate directly upon one set of tumblers, the guest key being so bitted as to raise the emergency tumbler in projecting the dead bolt, the guard and emergency keys being so bitted as to project the dead bolt without raising the emergency tumbler, said emergency tumbler having means to block the guest key whereby the dead bolt cannot be retracted thereby when projected by the guard or emergency keys, said keyhole being adapted to receive the maids and housekeepers keys in inverted position to operate directly upon the other set of tumblers, said keys being so bitted, and said tumblers being so constructed, that said maids and housekeepers keys may project the dead bolt but cannot retract the same, and said connecting bar and second set of tumblers being so constructed and arranged that operation thereof will simultaneously actuate the upper set of tumblers and raise the emergency tumbler, whereby the bolt may be retracted by the guest, guard and emergency keys.

4. In a lock, the combination with a casing, of a dead bolt, two sets of tumblers therefor, one of said sets including an emer gency tumbler, a connecting bar for said sets, the second set including means for actuating said bar to actuate said first set of tumblers, said casing having a keyhole on one side only, a keypost opposite one end of said keyhole, a plurality of keys including guest, maids, housekeepers, guard and emergency keys, said guest, guard and emergency keys being of the drill pin type, said maids and housekeepers keys being of the solid pin type, said keyhole and key-post being so constructed and arranged that the guest, guard and emergency keys may be inserted to actuate one set only of the tumblers directly, and to receive the maids and housekeepers keys to actuate only the other set of tumblers directly, the guest key being so bitted as to raise the emergency tumbler in projecting the dead bolt, the guard and emergency keys being each so bitted as to project the dead bolt without raising the emergency tumbler, said emergency tumbler having means to block the guest key whereby the dead bolt cannot be retracted thereby when projected by the guard or emergency key, the maids and housekeepers keys being so bitted, and the tumblers of the set operated thereby being so constructed and arranged, that the dead bolt may be projected by these keys but cannot be retracted thereby, said second set of tumblers and said connecting bar being so constructed and arranged that projection of the dead bolt by the maids and housekeepers keys will raise the emergency tumbler so that said dead bolt may be re tracted by the guest key as well as by the guard 'or emergency keys.

HENRY Gr. VOIGHT. NORMAN B. HURD. l/Vitnesses HARRY S. PARKER, M. S. WIARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, D. G.