US1248516A

US1248516A - Door-lock.

Info

Publication number: US1248516A
Application number: US78216313A
Authority: US
Inventors: William D Lutz
Original assignee: Otis Elevator Co
Current assignee: Otis Elevator Co
Priority date: 1913-07-31
Filing date: 1913-07-31
Publication date: 1917-12-04
Anticipated expiration: 1934-12-04

Description

W. D. LUTZ.

DOOR LOCK.

APPLICATION FILED JULY 3!, ma.

Patented Dec. 4, 191?,

3 SHEETSSHEET I.

l/Vl/ENTOR w/r/msss;

W. D. LUTZ.

DOOR LOCK.

APPLICATION FILED JULY 31.1913.

' Patented Dec. 4, 1917.

3 SHEETS-SHEET 2 WIT lI/ESSES:

W. D. LUTZ.

DOOR LOCK.

APPLICATION FILED JULY 31,1913.

Patented Dec. 4, 1917.

3 SHEETS-SHEET 3\ WITNESSES WILLIAM 1D. LUTZ, 0F ALLENEDALE, JERSEY, ASSTGNOF, T0 OTIS ELEVATOR COM- FATTY, OF JERSEY CITY, NEW JERSEY, A CORPORATION 015 NEW JERSEY.

DOOR-LOCK.

Specification of Letters Patent.

Patented Dec". AL, 151W.

Application filed .1 uly 31, 1916. Serial 1110. 152,163.

- ticularly to the hatchway doors of an autolnatic electric elevator.

One of the objects of the invention is to provide a cheap and durable lock, simple 1n construction, wherein the parts are interchangeable to fulfil the necessities requisite to adapt the lock to the various structural conditions met with in different installations, such as sliding or hinged doors, sliding or swinging either to the right or to the left.

Further objects of the present invention will appear hereinafter, the novel combi nations of elements being pointed out in the appended claims.

In the accompanying drawings, Figural shows a sectional elevational view of my invention,-with the parts therein arranged for the application thereof to a swinging door; Fig. 2 shows my invention, partly in section, as-arranged for a sliding door; Fig. 3 shows, in section, a front elevational view of Fig. 2; Fig. 4: shows an application of my invention to an elevator door, together with the'car and means carried thereon for operating the door locks; Fig. 5 shows an enlarged plan view of a cam associated with the door lock mechanism Fig. 6 shows an end view of Fig. 5 Fig. 7 1s an enlarged general arrangement of a latch. mechanism and contacts associated therewith; Fig.

8 is a detail view of a bearing stud.

In Fig. 1, the locking mechanism is located within a casing A, comprising a body 1, provided, with coverplates 2 and 3, secured thereto by screws 1. One of the cover plates is removed to show the mechanism within the casing. The casing is secured to the jarnb of the door in the usual way by means of screws 5. A latch 6 is positioned between lugs 7 and 7 formed in thelcasin and in this instance is pivotally support by a bearing stud (see Fig. 6), having at one end a screw threaded portion 9, which screws into an opening 12 in the boss 7; the other end of the stud 8 extends into a bushing stud 11, which screws into an openmg 12 1n the lug in alinement with the openm 12.

unders de of the latch 6 by a pin 15, and

supports a roller 14. The casing is proed with an opening 17 screw threaded to receive a threaded end 18' of a sleeve 19, WlllCll may be hexagonal a shown or any suitable shape. Extended through the sleeve is a rock shaft 20, whose inner end 21 is supported in a bracket 22 integral with the body of the casing. A collar 23 provided with

cam faces

25 and 26 thereon,is fixed in this instance, to the rock shaft by a removable taper pin 24. The cam faces (see Fig. 5) co-act with the roller 11, and when the collar i rotated in one direction or the other, the cam face applies a pressure to the roller which efi'ects an upward movement of the latch, against the action of a spring 27, positioned on .a spindle 28. The spindle 1s provided with a spear shaped head to seat itself during the movements of the A stud 13 is secured to the latch. One end of the spring bear against a head 31 on the spear, and the other-end a ainst a web 32, in a spindle guide 33. T e latter is secured to the casing by screws 34:, and the web 32 therein has an openin 35, through which the spindle. 28 exten s and is guided thereby.

A' catch 36 is secured to a' door 37 by means of screws 38, and is provided with -is operated by the rock shaft through the medlumofthe cam, and although ll show and describe specific arrangements of the lock mechanism with a hinged and sliding door, it is to be understood that either an rangement of the lock mechanism can be used with either a sliding or hinged door.

The changes required to adapt the mechanism for a sliding door 65 are as follows: The taper pin 24 is first removed to allow removal of the rock shaft 20, together with the sleeve 19, which is unscrewed from the opening 17. The bearing stud is next unscrewed from the opening 12 and screwed into the opening 17 to support the collar 23, which in this instance. has no operable function whatsoever other than to seat the roller 14 when the latch is in its locking position, as shown in Fig. 2. The sleeve 19 is now screwed into the opening 12' and the rock shaft. inserted therein, pivotally to support the latch 6, which is secured thereto by the taper pin 24, which is driven home through an opening 6' provided therefor in the latch and rock shaft 20. The rock shaft extends through the latch and into the bushingstud 11. The sleeve, together with the rock shaft, can be inserted at the point shown or through the opening 12 as shown in dotted lines in Fig. 2, in which case the pin is driven through an'opening 6" on the other side of the latch. In the latter case, the bushing stud is removed and the sleeve, together with the rock shaft, inserted therein and the said bushing stud inserted in the opening 12'. The door catch is in this in stance carried by a bracket 63 secured by means of screws 64 to the sliding door 65. The. lock casing is attached to a plate 66, secured to the door jamb. In the position shown in Fig. 2, the door 65 is fully closed and locked by the latch 6, andwhen the lever 59 is rocked by the cam 61 on the car,

the latch 6 being rotatable with the rock shaft, in this instance, is thereby rocked directly by the said shaft to open position, as shown in dotted lines in Fig. 2. The lock may readily be adapted for a door sliding to the right, instead of to the left as shown in Fig. 2, by turning the casing 180 and securing the same to the door j amb opposite to the one shown in Fig. 2, and in this instance the rock shaft and sleeve are removed from the opening 12 and inserted in the opening 12 on the opposite side of the casing as is shown in dotted lines in Fig. 2. The openings 55 provide ample means for conveniently leading the -said conductors into the casing, under all structural conditions met with on the installations heretofore mentioned. 4

In Fig. 4 I have illustrated in dotted lines the elevator car 62, which is suspended by one or more cables 66 and connected thereby to any suitable hoisting apparatus. A cam magnet 67 mounted preferably on the top of the car is connected by a cable or rod 69 to the cam 61, which is in turn connected to the support, 69, by means of links 70 and 71.

From the foregoing, it will be seen, that in a lock containing an embodiment of my invention, the various parts are so arranged and constructed that they may readily be interchanged to suit every condition that may arise in actual practlce. For this reason, 'it is necessary to carry only one type of lock in stock, whereas heretofore it has been customary for a manufacturing concern to carry in stock a miscellaneous assortment of locks each one different from the other and but one of them adapted to suit a particular installation. In this manner I am able greatly to cheapen the cost of manufacture, and also to prevent the annoyance and delay which frequently arise by reason of the ordering of a wrong type of door lock.

Obviously various changes in the details of construction and arrangement of parts might be made by those skilled in the art, without departing from the spirit and scope of my invention, and I desire therefore not to be limited to the exact construction disclosed.

What I claim as new and desire to protect by Letters Patent of the United States 1s:-

1. The combination of a lock casing, a latch in said casing, a spring pressed spindle having a spear shaped head and adapted to move sald latch to closed position, a groove in said latch adapted to seat said spindle, and a member for guiding said spindle.

2. The combination of a lock casing, a pivoted'latch in said casing, a bearing stud extending through said casing pivotally to support said latch, a roller associated with said latch, a catch, a rock shaft pivotally supported in said lock casing, cams fixed thereon, and a removable member for fixing the cams on the rock shaft, and co-acting with said roller upon either direction of rotation of said rock shaft, to rotate said latch out of locking engagement with said catch.

3. The combination of a lock casing, a pivoted latch in said casing having a roller associated therewith, a catch, a rock shaft, cams rotatable therewith and co-acting with said roller, operable to rotate said latch out of engagement with said catch, and a spring pressed guided spindle tending to move said latch to its locking position.

4. The combination of a lock casing, a pivoted latch in said casing, a catch for engaging said latch, a rock shaft disposed in the plane of movement of the latch, and cams co-acting with said latch, operable upon either direction of rotation of said rock shaft, to effect a movement of said latch out of locking engagement with said catch.

5. The combination of a lock casing, a

pivoted latch in said casing, a catch for engaging said latch, a rock shaft arranged in the plane of movement of said latch and pivotally supported in said casing, and means rotatable therewith co-acting with said latch to rotate said latch out of engagement with said catch.

6. The combination of a lock casing, a

fanat c collar having cam faces formed thereon which co-act with said roller to edect a movement of said latch to its unlocking position, and a spring pressed member associated with said latch, tending to move the same to its locking position.

7. The combination of a lock casing, a pivoted latch in said casing having a roller associated therewith, a rock shaft, cam members rotatable therewith and co-acting with said roller to efiect a movement of said latch to its unlocking position, and a yielding member associated with said latch tending to move the same to its locking position.

8. The combination of a lock casing, a pivoted latch in said casing, a roller carried thereby, a rock shaft, a collar rotatable locking position.

10. The combination of a lock casing, a pivoted latch in said casing, a rock shaft pivotally supported in said casing, and means carried by said rock shaft and latch co-acting in a manner to efl'ect a movement of said latch to its unlocking position when Y said rock shaft is rotated.

11. The combination of a lock casing, a pivoted latch in said casing having a roller associated therewith, a rock shaft, and a member rotatable therewith and co-acting with said roller, to efiect a movement of said latch to its unlocking position, and a yielding member associated with said" latch tending to move the same to its locking position.

12. The combination of a lock casing, a

pivoted latch having a roller associatedtherewith, a rock shaft, and means carried thereby co-acting with said roller to effeet a movement of said latch to its unlocked position,

13. The combination of a lock casing, a pivoted latch in said casing, a member associated with said casing and extending therethrough pivotally to support said latch, a. rock shaft pivotally supported in said casing, a connection between said latch and rock shaft operable to effect a movement of the latch to its unlocking position, and a yielding member associated with said latch tending tomove the same to its locking position. e

14. The'combination of a lock casing, a pivoted latch in said casing, a catch co-acting with said latch, a rock shaft extending transversely through said casing pivotally to-support said latch, a removable member operably connecting said latch to said rock shaft, bearings for said rock shaft and openings in said lock casing to receive said bearlIl 15. The combination of a lock casing, a

latch in said casing, a rock shaft pivotally supported in said casing and carrying said latch, and a removable member operably connecting said latch and rock shaft.

16. The combination of a lock casing, a latch,in said casing, a rock shaft transversely disposed with respect to said lock casing and carrying said latch bearings therefor, both sides of said lock casing having openings to receive said bearings.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

WlllLLlAllf 1D. lilUTE.