SU2428A1 - Device to hold broken elevator chain or elevator belt - Google Patents

Description

To prevent the elevator chain or belt from falling over the entire height of the elevator in the event of an open circuit, folding devices are available, located in the elevator guide posts, retaining slats with pockets when they fall.

FIG. 1 shows a cross-section of the racks of the Elevator with the proposed delay device; in fig. 2 shows a general view of the retention device on the outside of the elevator rack; in fig. the device in the plan and in fig. 4 is a longitudinal vertical section along the line AB; FIG. 2

In the racks E, E of the ascending loaded branch of the elevator (Fig. 1), in the space between the angle elbows D, D, rectangular holes M are cut out at the same height in both racks, at a distance of 2 to 3 meters one hole from other. On the outer side of the uprights of the holes M, the pads P are reinforced with the lugs B and B in which a pivot pin A is located on the R axis, extending out the stop end N between the angle brackets D, D. The lower part of the pin A extends beyond the post rounded in an arc of a circle and rests on the bottom wall of the cut-out D /, with the V thrust pad being located in a horizontal position; when the finger is turned up, the hard part of it is hidden in the neckline M, and this turn is limited by a protrusion with a finger.

The operation of the device is that when the chain or the elevator belt moves up in the upward branch of the uprights, the slats of the buckets or the pockets of the elevator move in the guides D, D, meet the thrust fingers A (Fig. 4), which, under pressure from the slats, fold up, no obstacle to the passage of the slats, whereby, due to the eccentric, relative to the center of gravity of the finger, the location of the axis of rotation and, the fingers return to the position shown

in fig. 4 and, thus, in case of a rupture of the elevator belt, its fall downwards will be delayed due to the capture of the falling end of the elevator belt by the area N.

SUBJECT OF THE PATENT

A device for holding a broken hoisting chain or elevator belt, characterized by application in the upstream branch of the elevator, on the vertical posts E, provided with guides D for turnbuckles or pockets, A, with projections C that restrict them in rotation and positioned on certain vertical distances and those used to grip the above-mentioned slats when the elevator is broken — in order to prevent the chain or ribbon from falling off with buckets or pockets.

T by autograph “Red Pechatnik, Leningrad, International, 75.

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