US447117A - Elevator - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

W. H. JONES.

ELEVAT0R.. N0. 447,117. Patented Feb. 24, 189-1.

(No Model.) 2 Sheets-Sheet 2.

W. H. JONES.

ELEVATOR.

110,447,117. Patented'Peb. 24,1891.

, UNITED STATES ATENT' OFFICE;

IVILLIAM H. JONES, OF CHICAGO, ILLINOIS.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 447,117, dated February 24, 1891.

Application filed September 15, 1890- Serial No. 365,035. (No model.)

T0 at whom it may concern.-

Be it known that I, \VILLIAM H. JONES, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Elevators, of which the following is a full, clear, and exact specification.

My invention relates to elevators, and particularly to means for automatically controlling elevator-gates, and has for its object to provide convenient means whereby the elevator by its motion may raise the gates. This object is accomplished by means of the mechanism illustrated in the accompanying drawings.

Figure 1 is a vertical section'through an elevator and its shaft. Fig. 2 is a front view of an elevator-gate. Fig. 3 is a detail of the movable catch. Fig. 4 is a side view of the same. Fig. 5 is a side view of the lifting; device, and Fig. 6 is a cross-section through the same on the line 6 6.

Like parts are indicated by the same letter in all the figures.

A A represent the floors of a building; B, the elevator-shaft therethrough.

C O are gates supported each by means of a bar D, having at its upper end the guides E E and carrying the eyebolt F, which passes through such guides and carries the washer G at its lower end and is surrounded by the spring H, which bears against the upper catch. From this eyebolt leads the rope J over the sheaves K K and is connected with the rope L. This rope passes down over the sheave M and by and around over the sheave N and terminates in the weight 0, secured upon the side of the elevator-shaft. In the brackets P P are the rods R R, and upon each of these rods, so as to freely slide thereon, is a catch. Each-catch consists of a body S, eyes S S, through which the rope L passes, a sleeve S through which the rope also passes, and a clamping-bolt S whereby the catch may be secured at any desired point to the rope L. Pivoted at the upper end of the catch is the toeSt normally held in the position indicated in Fig. 4. by the spiral spring One of these catches is placed upon'each of the rods R B. One has its toe upwardly and the other has its toe downwardly exposed.

T and T are guide-pieces on the side of the elevator-shaft.

U is the upper beam of the elevator U, which is supported by the rope U and carries the body V of the lifting device. On this body is secured the slide V, capable of reciprooating freely upon thebody, and the slide the position indicated in Fig. 1, it the elevator-ear is started upward the side-projecting plate V of the lifting device will engage the toe S of the lower catch, and as the elevator progresses will, of course, carry such toe and the catch upwardly along the rod R. In so doing, however, the rope L, to which the catch is attached, will be drawn in the direction of the arrow, thus raising both gates, if two he used, though this is not necessary at all. Then the floor of the elevator has reached the line of thefirst floor A, the gates will be lifted to the desired height. At this point it will be observed that the roller V is just about to engage the end of the guide T, and if the upward motion of the elevator be continued the .roller V will travel along the inclined edge of the guide T, and thus will move the slide V to the right. This, of course, will carry the plate V from beneath the toe S and will release the catch, whereupon the gates will fall into their closed position by reason of their weight, and thevelevator may ascend to the next fioor, leaving the gates closed in the proper manner. A like apparatus could be employed at the next floor above and would work in the same manner. \Vhen descending, the operation is reversed, for now the plate V will descend in line with the upper catch and will force it downwardly, thusdrawing the rope L in the direction indicated by'the arrow, thus opening the gates. If the elevator stops at the lower floor A, the gates will be open, and when it moves on the roller will engage the inclined guide T and force the slide to the left and thus release the catch and permit the gates to return to their closed position.

0 is a counter-weight to keep the ropes tight.

The device is particularly applicable in the case of elevators which travel without an attendant. The gate C is conneetedwith the rope J by means of the elastic spring or cushion H, so that when by the motion of the elevator the gates are raised the pressure will be applied to them elastically.

Having thus described my invention, what I'claim, and desire to secure by Letters Patent, is as follows:

1. In an elevator, the combination of a gate with a suspending rope arranged oversheaves, so as to have parallel strands within the shaft, and with a counterbalancing-weight, guiderods parallel to such strands, catches free to move on such guide-rods, but secured to the rope, oppositely-directed cam-blocks at top and bottom of such guide-rods, and a movable plate on the elevator-car, adapted to be moved by the cam-blocks, so as to engage one or the other of the catches, and thus operate the gate as the elevator-car passes.

2. The combination of an elevator-car pro vidcd with a longitudinally-movable plate having a roller at one end anda side projection at the other, stationary cams located at the side of the elevator-welh an elevator-gate, and an operating-rope provided with catches connected to the gate, the cams being adapted to move the slide upon the upward or downward passage of the car to engage the catches and automatically raise the gate, all substantially as described.

In a device for operating elevator-gates, a catch consisting of a spring-actuated pivoted projecting part and a body having two longitudinal apertures, a rope from the gate, which passes through one of these apertures, a fixed guide-rod which passes through the other, and a device to secure the catch to the rope, so that the same can move up or down on the rod but not on the rope.

\VILlilAM H. JONES.

Witnesses:

CELESTE P. CHAPMAN, IRENA GALLOW'AY.

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