US235047A - Elevator - Google Patents

Description

S T F U T O Elevator.

No. 235,047. Patented Nov.l 30,1880.l

Wwf/WM WfLl-l Y f5 ETERS, PHOTO-LvTHUGRAP Nirnn STATES trice.

OTIS TUFTS, OF SOUTH BOSTON, MASSACHUSETTS.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 235,047, dated November 30, 1880.

Application tiled May 6, 1878.

To all whom it may concern:

vBe it known that I, OTIs TUFCLs, of South Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Elevators, of which the following is a specification.

This invention relates to improvements in elevators, and has for its object to provide means for closing the hatchways.

In this my invention, instead of hinging the hatchway-covers, as heretofore common, and opening and closing them by means of the car, I tit the covers to the hatchways loosely, and the car as it rises lifts and carries the covers with it from floor to iioor.

At the Lipper end ofthe space in which the car moves I have arranged cover-holding devices, which, as the car reaches its uppermostposition, receive and hold? the covers while the car again descends; or, 1f desired, the covers may be lifted successively by the ear in its ascent, each cover being carried positively by the car for the entire distance traveled over by the car above the hatchway` from which the cover was lifted, and such covers may be deposited successively in their proper places as the car descends.

Figure l represents, in side elevation, a sufcient portion of an elevator to illustrate this my invention; Fig. 2, a vertical section of the same; Fig. 3, a side view, taken at the upper end or" the elevator 5 and Fig. 4is a detail, showing one of the covers in section, it being supported at its proper hatchway by its supporting-stop.

The frame a of the elevator and the car b may be of any usual or suitable construction. The different hatchways or openings to be covered are located opposite the floor-levels o d e-,cover c covering the hatchway for the floor c, d for d, and e for c. Each cover is made otl one hat piece, and is supported at its own oor upon supporting-stops 3, any suitable number, and is notched to tit the guideways f j". These stops, which support 'the covers at their own floors or hatchways, are' in different vertical planes on eaehliloor, and each cover is provided with notches at its edges to pass the stops for the covers of the iloor above it.

In the drawings, cover c has two fseries of notches to pass the stops which support the covers d c', and cover d has but one series of and the stops for each cover are so placed that each cover will pass all the stops of the covers above it, and will be checked in its descent-by its own stops.

AWhen starting the elevator for its days work the cover-litters g g on axles or rods 4, supported in ears 7L, moving with the car, (such axles being provided with cranks connected by a bar, 1', as shown in dotted lines, Fig. 1,) are placed in the position shown at Fig. 2, and as the car is elevated the cover c is lifted from its hatchway and carried upward with the car. These lit'ters are employed to facilitate the placing of the hatchway-covers in their holders, and also to raise the covers before the top of the car could come in contact therewith, thereby preventing the noise of concussion between two solid hat bodies.

When cover c meets cover d it is also lifted from its pins, and in alike mannerislifted cover c. Arriving at the upper end ot' its travel the car passes the covers beyond the beveled ends of .the cover-holders 7c l, they being secured to axles 5 (i, connected together by a lilik, 7, and provided with aweight, S, or equivalent device, as a spring, to keep the coverholders held pressed toward the center of the space in which the car travels. It' it is desired to run the elevator and not cover thehatchways at each descent ot the car, then the covers are left upon the holders, as shown in Fig. 1, and the cover-litters are turned, as shown in such iigure, so that they will not touch or lift the covers from the holders as the car reaches its upward limit.

When it is desired to cover the hatchways the cover-litters are placed in lifting position, so as to litt the covers from thelholders, then the holders are withdrawn by means of the cord or hand-rope m.

It is obvious that the shape otl the cover-V holders, their moving deviees, and the coverlifters may be variously modified without departing from my invention.

If it is desired that the covers be successively lifted as the car rises, and be put in place as the car descends each trip, then the IOO holders may be omitted, and instead of the movable cover-lifters I may employ projections at the top ofthe car.

The car-suspensory o passes through the center of each cover.

The cover-holders are provided With projections fv, to enter recesses formed in the lowermost cover of the series of covers held by them, so that should the rope m be pulled when the car is not elevated in proper position to raise the covers, then the holders cannot be moved fromunder and permit the covers to drop.

I claim- 1 1. The combination, with the car, of movable cover-litters adapted to act upon and carry the covers with the car from one to the other landing or Hoor-level, or to be thrown down out of engagement with said covers when the latter are retained by holders therefor, substantially as described.

2. The combination, with tlie car and With the covers, of cover-holders to hold the loose and movable covers lifted by the car and placed within such holders, substantially as described.

3. The coverliolders, combined With the devices to hold them pressed toward the center of the space in which the car moves, and with mechanism to move them in the opposite direction, to permit the covers to be discharged upon the car.

4. The combination, with the car, of coverholders and movable cover-litters, to lift the covers and place them in said cover-holders, and then by change of position of such litters fail to liit the covers held by the holders, substantially as described.

5. rlhe cover-holders provided with projections to enter recesses in the loWermost cover of the series of covers and hold them securely in place, substantially as described.

In testimony WhereofI have signed my name to this specication in the presence of tWo subscribing witnesses.

Witnesses:

G. W. GREGORY, L. F. CONNOR.

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