US112982A - Improvement in fire-escapes - Google Patents

Description

@anni @fitte THOMAS L. SUMMERIL or June; Wisconsin- Letters Patent No. i12-,982, dated-'lliiarch 21, 1871.

IMPROVEMENT INv FIRE-ESCAPES.

The Schedule referred to these illletlzern Patent andmaking part of the samp.

. To all whom 'it may concern 'Be it known that I, 'lfHoMAs L. SUMMERIL, oi'

Juda Post Oice, Green county, Wisconsin, have invented a new and useful Device for Elevating and Lowering diierent Materials, especially adapted to rescuing persons frombuildngs on tire; and I do hereby declare that the followi g is a full, clear, and exact description of thev saine, itsconstruction and operation, reference being had to the annexed drawing making a part of this specification, in which Figure l is a perspective view, showing the car or box in a position ready `to be elevated,

Figure 2 showing the same when elevated and ready to come down'.

Similar letters of reference indicate like parts in the drawing. My inventionconsists in the apparatus and means used .to operate the arms or levers generally known as lazy-tongs, and also the means used to press forward the box or car to receive its load, as, for instance, aperson from a high window'of a burning building.

To enable others to understand and use my invention, I will describe the same with reference tothe drawing.-

A represents the car or box lower the load;

B represents a frame, which is used tepress the box forward; O O are pulleys, over which the cords pass in elevating or lowering;

D is a ratchet and pawl, used `to lock the load at any desired height;

E represents a windlass, by whichA the rope H is tightened to press the car forward; y

F F are the arms or lazy-tongs;

G G are the cords used to elevate the car;

E is the cord used to press forward the ca r;

I is a bale and leade ball used to balance the frame used to elevate or v J is a Windlass; and

K K cords.

The opera-tion is as follows:

The foundation having been iirst leveled up and the ropes G G and car -A' being placed'as shown in iig. 1, the operators will turn the windlass J, which, bymeans of the cords K K, .will draw the arms F F into the position 'shown by g. 2, and the car will bc elevated to the top of the apparatus, when, by turning the Windlass E, the car can be pressed forward, so as to receive anything to be lowered orto unload anything which has been elevated.

It will be noticed that there are ytwo sets of arms or lazy-tongs, rendering the machine firm and strong for elevating.'

-It will also be noticed that the car A travels the entire distance from the bottom to the top ot" thev machine, while the top ofthe machine is elevated but halfthe' distance, thus rendering it possible to elevate a load very quickly, and also to render speedy aid to suiierers in buildings on iire.

The machine can, however, be used for elevating brick, mortar, stone, &c., on the walls ot' buildings, and for various other purposes. I do not claim the invention of the lazy-tongs --bnt `What I do claim, and desire to secure by Letters Patent of th`e United States, is'- v'.lhe combination and arrangement of the car A,

frame B, pulleys G C, ratchets D D, windlass E, cords G, G, and H, bale I, windlass J, and cords K K, substantially as described.

In witness whereof I have subscribed my name this 18th day of October, 1870.

.'l. L. SUMMERIL.

Witnesses:

E. L. WALKER, LEAH M.' WALKER.

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