US287219A

US287219A - Hatchway-protector for elevators

Info

Publication number: US287219A
Authority: US
Publication date: 1883-10-23
Anticipated expiration: 1900-10-23

Description

(No Model.)

R. T. BEAN.

K H-ATGHWAY PROTECTOR POR ELEVATORS. No. 287,219. 'Patented Oct. 28, 1883.

NrTED STATES PATENT EETOE.,

HATCHWAY-PROTECTOR FOR ELEVATORS.

SPECIFICATION forming part of Letters Patent No. 287,219, dated October 23, 1883. Application filed July 7,1883. (No model.)

To aZZ whom, it may concern.-

Be it known that I, ROBERT T. BEAN, a resident of Mount Sterling, in the county of Montgomery and State of Kentucky, have invented certain new and usefultImprovements and which represents a vertical sectional view through the several stories of a building having a hatchway in each floor and an elevator provided with my improved hatchway-protector.

My invention has relation to that class of protectors for elevator-hatchways in which 2O a series of covers tting over the severalr hatchways are removed by the elevator as it ascends and placed back over the hatchways as it descends; and it consists in the iinproved construction and combination of parts of the same, as hereinafter more fully described and claimed.

In the accompanying` drawing, the letter A indicates the elevator-platform, B, the rope or chain, and C one of the guide-posts which 3o are placed upon two opposite sides of the elevator-shaft, and serve to guide the elevator as it travels up or down in the same. The hatchways D in the several floors are of different diameters, the upper one being the 3 5 largest and the others decreasing in diameter till the lowermost hatchway, which is of such a diameter that the platform will flll it. A number of covers, E, fit over the hatchways, each one being slightly larger than the hatch- 4o way it covers, and each hatchway being sufficiently large to admit of the cover'fitting over the hatchway below passing through it, and all the covers are provided at their center with a perforation, F, through which the elevater-rope passes.

The top of the elevator-cage is provided at each side with a cross-piece, G, which, when the cage ascends, strikes the under side of the lower cover, raising the same, and as the cage now ascends through the several hatchy5o ways the covers are collected one upon the other until the top is reached. As, now, the elevator descends, the uppermost cover is first deposited at the uppermost and largest hatchway, the next cover at the next and smaller hatchway, and so forth until the bottom of the shaft is reached,when all the hatchways again Yare covered.

To guide the covers as they travel up or down, I provide two pairs of knees, H, one 6o -pair at each of the guide-posts, and place two knees of a pair, one at each side of the guide-post, facing the same with their vertical edges, which areprovided with anti-friction-rollers I, thus reducing friction and keeping the covers from becoming tilted, and thus binding against the guide posts or ropes as they are raised or lowered.

It will be seen that, the platform beingv justlarge enough to-iill the lowermost hatch- 7o way, the edges of the same will be a considerable distance from the edges of the upper hatchways, and to bridge over the space thus formed when the elevator stops at one of the upper iioors, I provide two hinged flaps, one l at each side of the platform, which may be swung back upon the platform when not used,

and swung out upon the floor when the platform stops in a hatchway, thus bridging over the open space. 8o

Having thus described my invention, I claimV and desire to secure by Letters Patent of the United States- 1. The combination of the guide-posts, secured at the opposite sides of the elevatorshaft, with the hatchway-covers adapted to be raised by the ascending elevator-cage, and provided each with two pairs of knees, one knee at each side of the guide-posts, the said knees having anti-friction rollers upon their 9o vertical edges, traveling upon the sides of the guide-posts, as and for the purpose shown and set forth.

2. The combination of a building having hatchways of increasing diameter from the lower iioor to the upper floor, and having two guide-posts at the opposite sides of the elevator-shaft, an elevator-platform as large as the lowermost hatehway, and having two friction rollers traveling upon the sides of the hinged flaps upon the opposite sides of the guide-posts, as andfor tho purpose shown and 1o platform, and provided with two transverse set forth. bars at the top of the oage of the platform,

5 and a number of covers of gradual downwardly-deereasing diameter, each overtting over Witnesses: one hatohway, and having two pairs of knees S. B. VYATT, having their vertical edges provided with anti- L. T. CHILEs.

ROBERT T. BEAN.