US1053861A - Fire-escape. - Google Patents

Description

J. M. PARRISH.

FIRE ESCAPE.

APPLICATION FILED JULY 25, 1911.

1,053,861 Patented Feb. 18, 1913.

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J. M. PARRISH. FIRE ESCAPE. APPLICATION FILED JULY 25, 1911.

1,053,861 Patented Feb. 18, 1913.

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J. M. PARRISH.

FIRE ESCAPE.

APPLICATION FILED JULY 25, 1911.

1,053,861 Patented Feb. 18, 1913.

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' FIRE ESCAPE.

APPLIOATION FILED JULY 25, 1911.

Patented Feb. 18, 1913.

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UNITED STATES PATENT UFFICE.

JOHN M. PARRISH, OF TRENTON, NEW JERSEY.

FIRE-ESCAPE.

Application filed July 25, 1911.

To all whom it may concern Be it known that. I, JOHN M. PARRISH, a citizen of the United States, residing at Trenton, in the county of Mercer and State of New Jersey, have invented new and useful Improvements in Fire-Escapes, of which the following is a specification.

This invention relates to fire escapes, and has for an object to provide a traveling carrier which will include a number of baskets to serve as conveying means for lowering or carrying persons to a point of safety.

Another object of the invention is to pro vide a structure of the type specified which is adapted for use particularly upon warehouses, the apparatus being constructed so as to permit the same to be used readily as an elevator for conveying or carrying barrels, boxes or like packages from the ground to any floor upon the building.

Another object of the invention is to provide means for holding the carrier against retrograde movement when the same is used for elevating purposes.

In the drawings, forming a portion of this specification and in which like numerals of reference indicate similar parts in the several views: Figure 1 is a side view showing the apparatus applied to a building. Fig. 2 is a longitudinal sect-ion through the apparatus. Fig. 3 is a section on line 3-3 of Fig. 2. Fig. i is a section on line 1% of Fig. 1. Fig. 5 is a side view of the controlling lever showing parts in section. Fig. 6 is an end view of the lower bracket. Fig. 7 is a section on line 77 of Fig. 2. Fig. 8 is a section on line 88 of Fig. 1.

The apparatus comprises a plurality of brackets 1 and a single bracket 2, the said bracket-s being arranged diagonally on the wall of the building, as shown in Fig. 1 of the drawings, and secured to the building in any suitable well known manner. The brackets 1 support horizontal shafts 3 on which are loosely mounted sprocket gear wheels 4. The outer end of the shaft 3 is securely connected to the bracket 1 by a brace rod The lower bracket 2 is provided with a bearing passage 6 and the boxing 7, the latter including the relatively adjustable sections 8 and 9. A supporting shaft 10 extends through the boxing sections 8 and 9 and through the bearing passage 6, the end 11 of the shaft having threadedly mounted thereon a clamping nut 12.

Specification of Letters Patent.

Patented Feb. 18,1913.

Serial No. 640,395.

The shaft 10 revolubly supports a hori-- journaled in the bearing 17 in the branch portion 18 of the bracket 2. The tubular portion 16 of the sleeve has extended therelnto the outer end of the shaft 10. The

' outer end of the shaft has threadedly mount- .ed thereon a suitable clamping or adjusting nut 19. The vertical portion 20 of the branch 18 on the bracket 2 is provided with -a circular series of ratchet teeth 21 which "is adapted for cooperation with a locking .dog 22 on the operating handle The tubular portion 16 is provided with a squared socket 2 1 which is adapted to relceive the correspondingly formed shank 25 on the controlllng handle.

The bearing 17 is provided with an integral guide flange 26 which has formed therein a slot 27. The controlling handle has its shank 25 provided with an integral en'ibracing member 28 which is adapted to be extended over the guide flange 26 when the handle is opera tively engaged in the socket 24. The embracing member carries a pin 29 which is adapted to be extended through the slot 27 and engaged behind the guide flange 26 so as to hold the lever operatively associated with the socket member.

The dog 22 is mounted in a passage 30 in the controlling handle, and as illustrated, a spring 31 exerts its tension against the dog to hold the ratchet engaging portion thereof normally in an extended position. The dog carries a threaded stem 32 on which the nut 33 is adjustably mounted,

.being adapted for operation to move the portions o6 of certain of the chain links. Each seat is also provided with pivoted substantially horizontal arms ll and substantially vertically disposed arms 41, the said arms 41 and 41 having eye portions 42 which are also engaged with the horizontal bars 39 and connecting portions 36 with certain of the chains and disposed preferably adjacent to the point of connection of the extensions 40 with the links.

The bracket members 1 and 2 of the structure herein shown carry vertical bars i3 which form portions of a guard rail M. This rail is located outermost of the carrier and serves to prevent accidental fall of the persons from the carrier when the latter is being lowered.

By arranging the carrier diagonally upon the building it passes the different floors so that persons desiring to escape from the building can be safely taken up by the carrier and lowered to the ground. The building when provided with my improved fire escape is also preferably equipped with such landing structures as those shown at 45 in Fig. l. The brackets 1 and 2 of the apparatus are connected with each other by horizontal cross braces 46 over which the upper lead of the carrier is adapted to travel and be held by the braces against sagging.

lVhen the apparatus is used as a fire escape the controlling handle is placed in the socket portion 24 of the driving sleeve '13. The adjusting nut is then adjusted so as to move the dog 22 to a position where it will not engage the ratchet surface 21 when the controlling handle is operated. The handle can then be revolved in any direction so as to correspondingly move the carrier, it being understood that when the controlling handle is moved to the left the upper lead of the carrier will be moved downwardly so that the persons escaping on the carrier can be safely landed on the ground. lVhen the apparatus is used as an elevator for the loading of barrels, boxes or the like, from wagons to the different floors of the building, the adjusting nut 83 is operated so as to permit the dog 22 to engage the ratchet surface 21. The controlling lever can then be revolved in one direction only so as to cause the objects when placed upon the carrier to be effectively carried in an upward direction, the carrier being held against movement in the reverse direction on the weight of the load which it is handling by engagement of the dog 22 with said ratchet surface.

I claim:

1. The combination with an endless carrier, supporting brackets therefor including a driving shaft and a fixed locking surface; of a controlling handle removably fitted to the shaft and provided with means adjustable toward and away from the said locking surface and adapted to engage the same to hold the endless carrier against movement in one direction.

2. The combination with an endless carrier including supporting brackets therefor, a driving shaft and a locking surface; of a controlling handle removably fitted to the shaft and provided with means adapted for engagement with said locking surface to hold the endless carrier against movement in one direction.

3. The combination with an endless carrier including a shaft having a driving sleeve thereon, the said sleeve having a socket therein, a locking surface embracing the socket, and a handle removably fitted in the socket and having means for locking engagement with the locking surface to hold the endless carrier against movement in one direction.

4. A fire escape comprising an endless carrier, seats thereon, supporting brackets for the endless carrier, one of the brackets including a fixedly supported shaft, a sleeve revolubly mounted on the shaft and provided with a tubular extension having a squared opening, a controlling handle having a shank adapted to removably fit the squared opening of said extension and means on the bracket and on the controlling handle interlocking to hold the latter operativelv engaged in the said tubular extension of the sleeve.

In testimony whereof I afiix my signature in presence of two witnesses.

JOHN M. PARRISH.

\Vitnesses VVILLIAM F. CLEMENS, CLARA M. PARRISH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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