US857109A - Chain-attaching bracket for elevator-shaft doors. - Google Patents

Description

PATENTED JUNE 18, 1907.

J. RASHKIN. CHAIN ATTAGHING BRACKET FOR ELEVATOR SHAFT DOORS.

APPLICATION FILED JUNB14,1905.

awuwvfoz Bash/213w .fose ah Gum/14 QLAA JOSEPH KASHKIN, OF NEW YORK, N. Y.

CHAlN-ATTACHING BRACKET FOR ELEVATOR-SHAFT DOORS.

Specification of Letters Patent.

Patented June 18, I907.

Application filed June 14,1905. Serial No. 265,146.

To all whom it may concern.-

Be it known that I, Josnrn RASIIKIN, a subject of the Czar of Russia, and a resident of the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Chain-Attaching Brackets for Elovator-Shaft Doors, of which the following is a specification.

This invention relates to chain-attaching brackets, and has for its object to provide an improved bracket of such type having means whereby a chain may be readily and conveniently secured in removable connection therewith, and also having further means whereby the chain, when placed or secured in such removable connection with the bracket, will be positively retained against accidental renn-rval or disconnection therefrom.

To this end the invention consists in providing a bracket having two flanges arranged substantially in line with each other and with a space between their adjacent ends, into which space the link of a chain is adapted to be inserted. in a position transversely of the flanges and be engaged at its opposite sides by the adjacent ends of said flanges to effect detachable connection of the chain with the bracket. After the link of a chain has been so inserted between the adjacent ends of the bracket flanges it will be held against accidental withdrawal therefrom by a suitable retainer.

A bracket embodying my invention may be secured to any desired object to which it may be necessary or desirable to detachably or otherwise attach a chain, but in the pres ent case I have illustrated the same in connection with a pair of doors for elevator shafts, such for example as disclosed in my prior patent No. 756,524, dated April 5, 1904, wherein two doors are operative] y connected by a suitable cable which operates over a stationary pulley. .ln doors of this class it is desirable that the connecting cable should be capable of being rearlilytattachedto or detached from one of the doors for convenience in setting up and adjusting the same and also for the purpose of permitting of their ready removal at any time.

Referring now to the accompanying drawings forming part of this specification, Figure 1 is a cross-section through a portion of an elevator door and an adjacent track-rail,

, f l l l l f taken on line ll of Fig. 2, showing in top plan a bracket embodying my invention attached to said door and having a chain con nected therewith. Fig. 2 is a front elevation of a portionof a pair of cable-connecterl doors and the adjacent track-rail, one of said doors having my improved bracket attached thereto with which is detachably connected the chain forming part of the (loor-connccting cable. Fig. 3 is a detail perspective view of the bracket detached from the door. Fig. 4 is an enlarged view of a modified form of bracket with a chain connected therewith.

Similar reference characters designate like parts in the several figures of the drawings.

To explain in detail, a and 1) indicate portions of a pair of elevator doors having grooved guide-plates (2. attached to their edges for engaging with a track-rail d carried by an angle-plate c which is adapted to be secured to the wall of an elevator shaft or other support. The said doors (I and 1) are connected by a suitable cable f operating over a pulley g and are adapted to move vertically in a direction toward and from each other when being operated to open and close, in substantially the same manner as in my said prior patent, the same being counterbalanced so as to insure their easy operation.

The door connecting cable f, in the pres ent case, includes a chainf, which is detachably connected with the upper door (L through I the medium of one of my improved brackets,

indicated generally by /t, which is attached to the door. This bracket 71. is formed with a shank portion 2 adapted to be secured to the door by suitable fastening means, such as the screws 3, and having an angular extension a carrying two laterally projecting flanges 5, 5, disposed in a plane off-set from the part :2 which are arranged substantially in line with each other and with a space (5 between their adjacent ends into which one of the links f of the chainf is adapted to be inserted in a position transywrscly of the flanges, as shown. \Vhen the link of a chain is thus inserted into the chain or link receiving space 6 of the bracket, its opposite sides will be engagcd by the adjacent ends of the two flanges and a positive and secure connection be thereby effected between the chain and bracket. This construction of bracket permits of the ready connection therewith and disconnection therefrom of the chain, and.

also permits of ready adjustment of the length of cable between the two doors by the connection with the bracket of a link located a greater or less distance from the end of the chain.

Upon the insertion of the link of a chain into the link-receiving space 6 between the adjacent ends of the bracket flanges, a positive connection between the chain and bracket is effected as before stated. After such connection has been effected, however, there is a p ossibillity of the inserted chain link becoming accidentally withdrawn from its position be tween the flanges 5, 5, and so permitting a disconnection between the chain and the bracket. To guard against possibility oi such accidental withdrawal of the chain-link from its said position between the flanges 5, 5, I have provided a so-callec chain-retainer.. This chain-retainer, as shown in Figs. 1, 2 and 3, is in the form of an extension 7 of the lower flange 5 which projects laterally from said flange in a position adj acent to its outer end and to the open end of the chain-receiving space 6 so as to receive therebehind one end of the chain adjacent to the inserted linef, as shown in. Figs. 1 and 2, and operate to prevent the accidental outward withdrawal of said link from its position between the flanges. In lieu of the said retainer 7, however, I sometimes employ a retainer in the form of a piece of wire or other suitable material, such as indicated at 7 in Fig. 4, which is secured in operative retaining position in front of the inserted link f by having its ends passed through openings 5, 5, in the flanges 5, 5, and bent inwardly against the flanges in holding position, as at 8, 8.

What I claim is: 1. A chainattachmg bracket comprislng an attaching-plate, a part projecting outwardly from and disposed at an angle to' said attaching-plate, said outwardly projecting part being provided with laterally projecting flanges substantially in line with each other and formed with a laterally opening chain-receiving space between their adjacent ends, one of said flanges being pro vided with a chain retaining means formed integral therewith.

2. A chain-attaching bracket comprising an attaching plate, rigid members off-set from and disposed in a plane substantially parallel to said plate, and formed with a laterally opening chain-receiving space between them, one of said elements having a chainretainer formed integral therewith and located wholly to one side of said laterally opening space.

3. A chain-attaching bracket, comprising an attaching-plate, a part off-standing from said plate and disposed at an angle thereto, laterally projecting flanges formed on said off-standing part and disposed in aplane substantially parallel to the attaching-plate, said flanges having a chain-receiving space formed there between and means to prevent accidental displacement of a chain from said space, said means consisting of a projection carried by one of said flanges and located in a plane substantially parallel with the oilstanding p art.

JOSEPH RASHKIN.

Witnesses:

CHAs. F. DANE, E. M. FAITH.

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