US969322A - Cable-hitch for elevators. - Google Patents

Description

0. A. ANDERSON.

CABLE HITCH FOR ELEVATORS.

APPLICATION FILED DEO.10, 1903'.

969,322. Patented Sept. 6,1910.

minimumgmlll UNITED STATES PATENT OFFICE.

CARL ANTONIUS ANDERSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO RELIANCE ELE- VATOR COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

CABLE-HITCH FOR ELEVATORS.

969,322, Specification of letters Patent. Patented Sept. 6,1910;

Application filed December 10, 1908. Serial No. 466,830;

To all whom it concern: I the car as the drum 5 is rotated. Cables 10 Be it known that I, CARL A. ANDERSON, a and 11 are also attached to he 03 as will citizen of the United States, residing at Chihereina te e de c d, u they, operate I cago, in the county of Cook and State of over a pulley 12, and are connected to a Illinois, have invented a certain new and counter-Weight The cables 8, 9, 10 and useful Improvement in Cable-Hitches for t 11 are all associated w1th the car support 1, Elevators, of which the following is a full, the manner lllustrated more 1n detail 111 clear, concise, and exact description, refer F lgs. 2 and 3. ence being had to the accompanying draw- Referring to these figures, I have shown a ings, forming a part of this specification. saddle let, whose flaring ends 15 are fas- My invention relates to suspension detened underneath the members 1-1 by the. vices for elevators, and is more particularly bolts l6-16. Each of the cables 8 and 9 1s applicable, and finds its greatest advantages, fastened in a socket 17, wh1ch sockets, by for use in connection with electric elevators, means of bolts 18, are pivotally secured to although of course not so limited in its applungers 19-19 through the agency of eyes plication. provided on the upper extremities of said It is the object of my present invention to plungers 19. The plungers '19, in this 1nprovide a resilient equalizing suspension stance being shown as square, pro ec't for the car of an elevator system. through-the saddle 14, through a head-block The device employed in accordance with '20, a tail-block 21, and are then secured in my improvement makes it possible to operplace by means of the nuts 22. A cotterate an elevator in such a manner as to depin 23 holds these nuts in place. Be tween crease to a minimum the sudden jars which are occasioned \vhen'it is attempted to stop lnterpose a strong spiral spring 24, which an elevator at any particular point in its maintains these two blocks apart, and which shaft. l urthermore. through the agency of provides the resilient mounting between the my improved means. I do away with the cables.8 and 9 andthe car-frame 1. 4 great amount of (:llllu breakage which is It will be noted from the description now an incidental to the operation of elegiven so, far that I-a-m enabled, by virtue of vators. i this improved arrangement to attach the the head-block 20 and the tail-block 21 I I will describe one means of carrying out mounting, technically calle cable hitch, J

my invention by reference to the accompaon the lower side of the transverse membersnymg drawings, in whic l1,. thus providing additional security in Figure 1 illustrates in general the application of my improved device; Fig. 2is a detailed front view thereof, and Fig: 3 is a detailed view thereof.

the support of the car. The central cables 10 and 11, which support the counterweight, are also attached'to a plunger 19, held in blocks 20 and 21 through the inter- I here illustrate the frame-work ofv an position of the spring 24. v elevator car, consisting of the I-beams From the construction thus-described it 1 1, fastened to suitable side members will be seen? that the inequalities, for in- 2-2, within which a cage, 3, is suitably stance in the circumferential length of the mounted, thus completing the car. This various grooves of the drum 5, are compencar is adapted to travel in the shaft 4, and

is operated by means of a drum 5, to which is firmly attached a worm-wheel 6, in association with a worm 7, which can be of the drum, a compensatlve influence of the driven in any suitable manner, as by an said spring 24 has a tendency to maintain electric-motor, for instance. v equal the tension to which the two said ca- I have not shown the rope for contrblling bles are subject inthe operation of the car. the operation of the'car, as 'same forms no It. will further be noted that on account of part. of my invention. the resilient mounting-of the sockets 17, due

The drum 5 1s arranged to wind the cal to the facility with which the plun'gers 19 bles 8 and 9, which cables raise and lower l may tilt away from the vertical when said the spring 24, so that as either. cable 8 or 9 sated for by the expans'ionor retraction of" the saddle 14 with the several cable holding new and desire to secure by Letters Patent is:

An apparatus of the character described, comprising a car framework having two transverse members at the top portion thereof, a saddle for said framework mounted 11 on the under side of said transverse mem rs, cables for hoisting and lowering said car framework, a counterweight, a cable for uniting said car framework with said counterweight, metallic springs interposed'between said framework and said cables, and a prime mover.

In Witness whereof, I hereunto subscribe my name this th day of November A. D., 1908.

CARL ANTONIUS ANDERSQN.-

Witnesses:

MAX W. ZABEL, E.,B. CAMrBELL. v

cables 8 or 9 tend to swing out of their normal path, due to vibrations or sudden stoppings of the car, said resilient mounting tending to follow the movement of the cable, it stops the cable vibrations through the absence of'a solid connection vbetween the end ofthe cable, and the car frame-work.

To recapitulate the flexible mounting of the end of the cab e eliminates to 'a-large extent the swaying ofsaid cable. The combination of a single mounting .plate, such as devices, whereby the car operating cables and the counter-weight cables are flexibly attached to the car, serves to prevent sudden jars to the car, and at the same .ime serves to prevent breakage of the cable at v the socket 17 which is also likely to be caused by the swaying of the cables.

Having thus described the preferred embodiment of my invention, what I claim as

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