US725964A

US725964A - Pneumatic fire-escape.

Info

Publication number: US725964A
Application number: US7855201A
Authority: US
Inventors: Israel Hogeland
Original assignee: ADALINE P CAMPBELL
Current assignee: ADALINE P CAMPBELL
Priority date: 1901-10-14
Filing date: 1901-10-14
Publication date: 1903-04-21
Anticipated expiration: 1920-04-21

Description

No. 725,964. 1 PATENTBD APR.21,1903,

1. HOGBLAND. PNEUMATICI. PIRE ESCAPE.

APPLICATION FILED 00T. 14, 1901.

N0 MODEL.

NITED STATES TPATENT -lFFICE.

ISRAEL HOGELAND, OFINDIANAPOLIS, INDIANA, ASSIGNOR, lBIFMESNE ASSIGNMENTS, OF ONE-HALF TOi ADALINE P. CAMPBELL, OF INDIAN- APOLIS, INDIANA.

SPECIFICATION forming part of Letters Patent No. 725,964, dated April 21, 1903. Appnoouon fnod ootober 111, 1901.Y sonal No. 78,552. No model.)

To all whom, t may concern:

Beit known that I, ISRAEL HOGELAND, a citizen of the United States, residing at Indianapolis, county of Marion, and State of Indiana, have inventednew and useful Improvements in Pneumatic Fire-Escapes, ofY

which the following 4is a specication.

useful improvements in an apparatus which may be used -not only as a fire-escape, but

also may be employed as an elevator in buildings; and it consists of a series of verticallyextending telescoping or extensible tubes pneumatic'ally operated to be extended to elevate a platform, car, or crib, which latter is secured on the top ends of and supported by said extensible tubes, as hereinafter set forth, and particularly pointed out in the claims.

The object of my invention is to provide a portable apparatus by means of which people may be rescued from burning buildings with both safety and despatch andf'to p'ro'# vide an apparatus that will be durable,vsafe,. and easily operated-under all conditions of Weather. I attain these objects by means of the apparatus illustrated'inV the accompanying drawings, in whichsimilar letters of refseveral'views. f Y

erence designate l like' parts thr'ough'out the Figure'l is a side elevational View of Inyi pneu-matic elevatoror' rey'escape, showing the sameplacedin positionin fr ont of abuildj, ing. Y Fig. 2 is van enlarged detail sectional View of the packing-jointof the 'telescoping tubes. Fig. 3 is a plan diagram view of the telescoping tubes, showing the branch or feed pipes'co'nnected'to the said tubes'. FigJL'is an enlarged detail view of one of the ends of the tube-braces, showing the means l'whereby said braces are secured to their telescoping tubes; and Fig. 5 is a detail perspective view of a removable gangway which is `provided for the Vpurpose-of forming a means of passage from the crib or platform of the elevator to a building.

A series of three, four, or more-preferably four-vertically-extending base-tubes B' are permanently secured in parallel relation to each other and atl their proper or fixed distances 4apart by the upper and lower tie or brace bars L and L.V The series of tubes B' are capped or otherwise plugged at their bottom or base ends and open at their top ends to receive the telescoping tubes B2. The telescoping tubes B?, which are equal in number My invention relatesto certain new and to the tubes B', telescope into the latter tubes,

`andthe said tubes B2 are maintained at their proper distances apart and in parallel relation to each other 'by the upper or top braces -or tie-bars L2, and, similarly, into-these latter tubesB2 the tubes B3 enter and telescope, and these latter are also connectedat their top ends by the ties or brace-bars L3, andfinally the telescoping tubes B4, Which are closed or capped at their top ends and open Vat their base or bottom telescoping ends,'enter and telescope into the' latter tubes B3, and said tubesBtarey also connected at their top ends by the braces or ktie-bars L4 similarly to the tubes -BBZ B'and for the same purpose.

Packing-valves K (see'Fig.A 2) aresecured on eachof the open base or telescoping ends of the telescoping-tubes B2, B3, and'B4 and are provided for the purpose of securing airtight joints between the outer and inner surfaces of the Vpairs'of telescoping tubes B' and B2, 4B2 and B3, andlBSV and B4 to prevent a leak- -age orescape of the air 'or fluid-therethrough. Tle" braces orvtie'bars L, L',"L2, L3, and L4 each havetheirendsformed to encircle and embrace one half of fthe circumference 'of each of the telescopingv tubes to which they are connected, and a similarly-formed clampingcap N encircles the other half of the tubes and is secured -to each ofthe ends of eachbf 'said braces ordti bars by their clamping or securing bolts O', O2, and O3, by means of which latter said cap is drawn up toward the clamping, end of the brace to tightly clamp the telescoping tube tohold said braces securelyinposition.y A'crib or other suitably-railed-in platform or car T, provided with a closing-gate T', is secured on the top ends of the top telescoping tubes B4, and the said crib is provided for the purpose gers from a high place or building to the ground. A storage-tank C, into which air is pumped and compressed to a suitable pressure for use in operating the hoist or lire-escape, is secured permanently in position between the base telescoping tubes B and to the latter. The distributing or feed branch pipes E are connected at their outer ends to the lower or fixed base telescoping tubes B' at the base ends of the latter, (see Fig. 3,) and said distributing-pipes converge to a central point to connect with the three-way valve F, which latter is connected to the storage-tank C. lVhen the entire series or system of telescoping tubes are telescoped to lower the crib or platform T to its bottom position-that is, closed up-the said crib will be still elevated a considerable distance above the ground and not within easy access, and in order that the said crib may be easy of access I provide a suitable ladder X, which is permanently secured to the supportingtruck A, and said ladder is extended upwardly to a height to conveniently reach said crib T when the latter is at its lower or bottom position.

The entire mechanism constituting the elein dotted lines in Fig. 1.

vertical position to a horizontal position, or vice versa, I provide the pneumatically-operated oscillating cylinders D and D', which are pivotally mounted at their central portions orat a point intermediate their ends by any suitable means to the truck A and which have the ends of their piston-rods connected to the wrist-pin Z, which latter may be secured to the side of the storage-tank C or to the base pipes or tubes B by any suitable connections, so that when it is desired to elevate the elevating mechanism from a horizontal position to a vertical position air under pressure is admitted into the cylinder D to force its piston-rod outwardly to swing said elevator mechanism on its hinge-rod U, during which movement of said piston the opposing piston of the cylinder D is moved inwardly to compress the air confined therein to an extent to form a cushion in said cylinder, and thereby prevent the too-rapid movement of or excessive jar to the mechanism.

The stop-rods M', M2, and M3 are adapted to freely lit and to slide in suitable guideways or holes drilled in the pairs of braces L and L2,L2 and L3,L3 and L4,and the said stoprods are each of a length that when the said telescoping tubes are fully extended the end heads or stops will contact with the braces through which said rods pass to prevent any further movement or extension of said telescoping tubes to separate them.

A crank-handle Q is secured on the valvestem of the valve F and is provided for the purpose of operating said valve F by an operator standing either on the ground or on the truck A.

A vertically-extending telescoping or extensible tubular shaft consisting of thesections H', H2, H3, and H4 is journaled in the bearings H, formed in the prolonged ends of the braces L L2, L3, and L, and on the top end of the top section H4 of said shaft is secured the crank-handle P, by means of which said shaft is rotated. The vertical extensible shaft is connected to the valve-stem of the valve F by the bevel-gears G, by which means the latter shaft is turned simultaneously with said vertically-extensible shaft, and thus the said three-way valve F may be manipulated by an operator standing in the crib T by means of the crank P. One or more hose-pipes, as S, may be lashed to the crib-railing and elevated therewith to be used by a fireman or other operator.

Any suitable extensible brace, as I, having a binding-bolt J, may be employed to brace the elevator when the latter is fully extended and in its vertical position to secure stability.

Any suitable gangway, as Y, may be provided for the purpose of forming a passageway from the crib T to a building, and the application of the same is shown in Fig. 1 and needs no particular explanation.

Having thus fully described this my invention, what I claim as new and useful, and desire to cover by Letters Patent of the United States therefor, is-

1. In a pneumatic fire-escape, the combination with a truck, of a tower arranged thereon and comprising a series of vertically-extending telescopic tubes, a crib-or platform arranged at the upper ends of said tubes and adapted to be moved thereby, a source of compressed air carried by the truck, a distributing and controlling valve connected to said source, pipes connecting said Valve with said tubes, whereby the latter are supplied with the compressed air for operating the crib or platform, and a telescopic shaft arranged at the side of said tower and having its upper end extending to the crib or platform and its lower end connected to said distributing and controlling valve, said shaft being provided with means to eect its operation from the crib or platform, whereby the distributing and controlling valve may be operated from the crib or platform when the latter is either in motion or at rest.

2. In a pneumatic fire-escape, the combination with a truck, a tower arranged thereon and comprising a series of vertically-extending telescopic tubes, said tower being,r hinged to said truck, whereby the tower is adapted to be folded on the truck when not required for use, and means connected to said tower IOO for swinging the same, of a crib or platform arranged at the upper ends of said tubes and adapted to be moved thereby, a source of compressed air carried by the truck, a distributing and controlling Valve connected to said source, pipes connecting said valve with said tubes, whereby the latter are supplied with the compressed air for operating the crib -or platform, and a telescopic shaft arranged ro at the side of said tower and having its upper end extending to the crib or platform and