US312782A

US312782A - Peter m

Info

Publication number: US312782A
Authority: US
Publication date: 1885-02-24
Anticipated expiration: 1902-02-24

Description

P. M. WILSON.

BLEVATOR HATGH.

'Patented Feb. 24, v1885.

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PETER M. VILSON, OE NEW YORK, N. Y.

ELEVATOR-HATCH.

SPECIFICATION forming part of Letters Patent No. 312,782, dated February 24, 1885.

Application filed June 20, 1884. Renewed January 28, 1585. (Xo model.)

T all whomv it may concern:

Beit known that I, PETER M. WILSON, of the city and county of New York, in the State of New York, have invented certain new and useful Improvements Relating to Elevator- Hatches, of which the following is a specification.

The invention may apply to all elevatorhatches which are lifted successively by the rising of the elevator and carried on the elevator until the latter descends again to the same floor from which it received the hatch. Such have been before known. I have invented important improvement-s in the details.

I make the several hatchways of a building differing a little in size, the largest at the top, contracting the dimensions successively at each ioor until thelowermost is only sufficient to allow the passage of the elevator. The recesses in which they are received are correspondingly varied in size. Each hatch is made with a beveled edge, and is received in a corresponding beveled rabbet in the floor in which it matches. A central casing of metal having a smooth exterior, conical or flaring from the top downward, incloses the complex work at the point where the rope attaches. As the elevator-car rises this casing enters a corresponding hole in the hatch and insures that the hatch is received and held in the correct position.

In the lower face-of each hatch are two or more recesses-I will represent them as two- :re-enforced by a meta-l plate, so as to form a denite and reliable guide, which receives a tapering spur carried on the upper face of the hatch below.

It will be understood that my hatchways may be defended by partitions or railings iu the ordinary way, to prevent people from walking over them; but the construction allows their use without such railing or lateral defense. They may be walked over with impunity. In case of fire or other emergency the hatches may serve as a part of the floor. I will show them as of only moderate thickness, but they may be varied in that rospect. I prefer two thicknesses of boards,

nailed or otherwise strongly secured together, the grain of one thickness running crosswise to that of the other.

The following is a description of what I consider the best means of carrying out the in vention.

The accompanying drawings form a part of this specification.

Figure lis a vertical section on a small scale, showing the several floors of a tall building. The remaining figures are on a larger scale. Fig. 2 is a diagram showing in verticalsection the several doors brought near together the better to show the relative sizes and relations of the hatches and hatchways. Fig. 3 is a plan view corresponding to Fig. 2. Fig. 4 is an enlarged detail section.

Similar letters of reference indicate corresponding parts in all the figures.

A A2, Ste., are the several lioors of a tall warehouse. Bis the car of an elevator raised or lowered by any ordinary or suitable mechanism ,actuating a connecting-rope or set of ropes, O. There may be any ordinary or suitable guiding means equipped with racks or other devices,with means (not represented) on the car for engaging therewith in case of failure of the hoisting rope or ropes. A series of hatches, M M, &c., apply in the rabbets in the several doors. The lowermost is but little larger than the car, and flared at the edges, as shown. The next is larger, and so on upward, each being larger' than the hole below. The hatchways are correspondingly formed. Each of the rabbets around the several hatches is formed with a flat bottom, a., which supports the weight of the hatch. The flaring side a is matched by a corresponding beveled edge on the hatch. IVhen the hatch is lowered linto position, the flaring side a', acting against the correspondingly-beveled side of the hatch,

guides it correctly into position.

D is a casing of cast-iron or other suitable material inclosing the attachment of the rope or ropes C to the car and smoothly finished on its outer surfaces. Its upper portion is tapered. The holes in t-he several hatches are correspondingly formed. Vheu the elevator in rising approaches a hatch, the small upper end of the casing D easily enters the hole in the hatch, and as the larger portion ofthe easing I) is' presented, the form insures that it shall be received in the correct position. There may be additional pins (not represented) extending upward from the top of the car B, which may be received in holes in the hatches,

IOO

if such shall be found necessary or desirable. In all cases I provide recesses on the under face of each hatch peculiarly arranged to receive short tapering spurs carried on the hatch below. The spurs are marked M" and may Vbe formed of' cast-iron with sufcient flanges,

m', to allow their being strongly secured by screws m. The recesses in the under side of each hatch are mark/ed N Each is encircled and defended by a plate, n', having a sufficient hole in the middle to receive the spur. The plate is secured by screws n. These spurs M* and their corresponding holes N* are arranged as follows: The uppermost hatch, M, is provided with two holes, N i2 near two opposite corners. There are two spurs, MVS, in eX- actly corresponding positions on the upper face of the next hatch below. On the under face of this second hatch are two recesses, N*, located in a line transverse to the line of the first. In other words, the corners which do not carry spurs M are provided with the holes Nik. lThe neXt hatch below the hatch last named carries the spur Md near the corners, which match to the recesses above. This third hatch is provided also with recesses Ni, but

A they are arranged in the plane of the holes in the uppermost hatch. They are on the corners of the third hatch, which are not occupied by the spurs Mii Thus eachhatch, except the uppermost, is provided both with a pair of recesses N :t and with a pair of spurs M*, and in each case the spurs are near the corners which are not provided with the recesses N21i. The car B at its top carries a platform, B, of light wrought-iron. The upper Ifin-e of this platform B carries spurs b, which engage in the recesses Nt: in thelowesthatch. Modifications may be made in the forms and proportions of the details without departing from the principle or sacrificing the advantages ofthe invention.

The Obliquity or flare of the sides a of the several rabbets in the fiooring may be varied. I can vary the depths of the several rabbets, and consequently the extent to n hich the hatch shall sink guided by the flaring surfaces a. It is important that the flare be smooth, so that the function ofguiding shall be performed without evertilting the hatch by positively supporting one side at ahigher elevation than the other.

The casing D may be varied in size and in degree of taper. It is important that it. be kept as small as practicable in orderto reduce the area of the opening which is left uncovered when the elevator sinks below any given hatch.

I claim as my inventionl. The series of hatches h M2, differing in size, in combination with corresponding seats having Haring rabbots a c at the several doors, and with an elevator-car, B, and means for operating it, all arranged forjoint operation, as herein specified. A

2. The hatches lil M2, differing in size, in combination with the floors A A2, having rabbetswith flaring edges a', and with an elevater-car, B, operating-rope C, and hollow tapering casing D, arranged for joint operation, as herein specied.V

3. The hatches M M2, differing in size and provided with recesses N and tapering spurs Mii, arranged out of line, in combination with thedioors A A2, having rabbets a', with an elevator-car, B, carrying a platform, B', having spurs b, and suitable means for operating the car, substantially as herein specified.

In testimony whereof I have hereunto hset my hand-` at New York city, New York, this 6th day of June, 1884, inthe presence of two subscribing witnesses.

I. M. VILSON.