USRE10031E - otis brothers - Google Patents

Description

2 Sheets-Sheet 1.

H. H. DAYQ De-cd.

S. G. DAY, executrix, assignor to OTIS BROTHERS 8n COMPANY. HYDRAULIQAND PNEUMATIC ELEVATOR.

No'. 10,031. Reissued Feb. 7,1882.

/ 2 Sheets-Sheet 2 H. H. DAY, DBOd.

S. G. DAY, executrix, assignor to (ms BROTHERS GLICOMPANY. A HYDRAULIC AND PNEUMATIC ELEVATOR. N0. 10,03

5 ReissuedF .7,188Z..

PATENT OFFICE.

OTIS BROTHERS & COMPANY, OF YONKER, NE\V YORK, ASSIGNEES OF SARAH GOULD DAY, EXEUUTRIX OF HORACE H. DAY, DECEASED.

SPECIFICATION forming part of Reissued Letters Patent No. 10,031, dated February 7, 1882.

Original No. 118,696, dated September 5, I871.

To all whom it may concern Be it known that HORACE DAY, now deceased, formerly of Bloomingdale, New Jersey, did invent or discover certain Improvements in Hydraulic and Pneumatic Elevators, for which Letters Patent ot' the United States were granted to him September 5, 1871, which said invention or discovery, with the Letters Patent intended to secure the same, have by assignmentin writing new becometheexclusive property of OrIs BRo'rHERs & COMPANY, a

corporation organized under the laws of the State of New York; and the said OTIS BROTH- 1311s 8; COMPANY do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, making part of this specification.

The intention and object of this invention are, by means of a certain combination ofair and water chambers, connected with suitable cylinders, guides, and plungers, or pistons and platforms, to use compressed air as a motive power, which air may be compressed either-by steam, wind, or water power, and transmitted in pipeslongdistances, and pressingupon water contained in suitable chambers ca uses the same to flow into the cylinders containing the plungers or pistons to be raised, whereby the pistons or plungers are lifted or raised as far as they are intended to go, carrying withthem suitable platforms, upon which persons and goods may be placed, and thus raised orlowered from one level to another, accordingas they may desire, the time of operating being under perfect control by means of suita ble valves and connections for operating them.

The invention further relates to the combination of elevators with elevatedor underground railways, whereby agreat saving of labor is efl'ected and facilities atforded for conveying passengersand goods to the level of the street, road, or natural ground, or other desired level.

In the drawings forming part of this specilication, Figure l is a side elevation of apparatus illustrating the invention. Fig. 2 is a transverse sectional elevation on the line 1 2, Fig. 1; Fig. 3, a sectional plan ontheline 3 Application for reissue. filed March 21, 188i.

term and plungers; Fig. 5, an elevation ofthe parts shown in Fig. 4.

S S represent the road way of a street, and R the roadway ol' ail-elevated railway supported upon columns. v

In the construction shown there are two platforms, L, each connected by a bar, I), to the cates with the extended lower compartment, W,

of an air and water chamber, X, and with the latter communicates through a pipe, a, a pipe, A, constituting a receptacle, into which air is compressed by steam or other power, as afore said. The communicating passage or pipe n is provided with a stop-valve,m, and with a two-way valve, c, which may he turned by suitable connections, so as to permitair to flow from the receptacle A into the chamber X, or out of the latter, or so as to close the communication. The chamber X may communicate through a pipe, Z, with a main or cistern to supply any loss=cf the water, so that the chamber X may be full of water when the platform isin its lowest position. ground, and is supplied with the compressed air by suitable apparatus, as before described, in such quantities thatitwitl flow, on the opening .of the valve 22, into the chamber X, force the water against the pistons, follow their movements, and raise the elevator from one level-to another, as may be desired, thedesccnt being effected by permitting the air to escape, and the platform may be arrested at any point.

The movements of the platforms are thus un-' der the perfect control of the operator to cause the platforms to rise or descend, or arrest or reverse themovement at the desired level. The pipe A transmits the air from the compressor to each chamber X, furnishing additional supplies after the air is exhausted on the return 4, Fig. 1; Fig. 4, a plan of the elevator-plat- The main pipe passes under-' movements of theplungers or pistons, and the body of water between the moving body of air and the piston transfers the motion of the air to the piston, and, being highly incompressible, and having comparatively great inertia, insures more regular movements than would result if the piston rested directly upon a body of highly-compressible fluid.

In the drawings, two elevators are shown,

one on each sidc of the street orroadway, each having a tank communicating with the main receptacle Aand with the cylinders of the adjacent platform.

D D are rods connecting the valves v r of both elevators, and H H are rods connecting with the hand-lever O, by which the operator in charge opens and closes the ports for the ad mission and escape of compressed fluid to and from the chambers X X, the valves '0 c of which are so arranged that when .the compressed fluid is admitted to the chamber .1: of one elevator, situated on one side of the street or road, the fluid is escaping, from the other, located on the opposite side of the road, causing one elevalor-platform to ascend while the other descends. To economize the working power the pistons and platt'orn 'of one elevator are connected by means of suitable ropesor chains,E 19, passing partly round the pulleys t t to the pistons and platform of the other elevator in such mode as to make them balance each other, as shown in Fig. 2, and the whole is so arranged that when the lever O is pulled in one given direction the compressed fluid is admit; ted to the chamber X of one elevator-say at the right and forces the water contained therein through the watercom partmentlV into the cylinders c c, causing their pistons pp to be forced upward, carrying the platform with its passengers and goods with it. But the samemotion of thelevcr shuts oft the port admitting compressed fluid to the chamber X of the elevator at the left, and opens a port to allow the compressed fluid contained therein to escape, and the weight of the platforms and piston, &c., hanging on the rope or chains E E of such elevator, combined with the pressure lifting the other elevator, will cause the elevator at the left to descend, driving the water in the cylinders 0 back into the chamber X, and so on alternately, as will be readily under- 7 stood. By the use of a supply of compressed air or equivalent elastic fluidfurnished byapparatns actuated by steam, wind, or water power, and transmitted to the working-cylinder, of a body of water orequivalent inelastic fluid which moves with the piston back and forth, and of ports and valve appliances, the

. operator can have the movements of the platform under perfect control.

This kind of elevators ,is also applicable to other useful purposes.

\Ve claim- 1. An elevating apparatusin which are combined the following elements,namely: a cylinder and piston, means for affording a supply of compressed elastic fluid in quantities sntli cient to propel the pistons, a chamber contailr ing an inelastic fluid communicating with the cylinder and with the elastic-fluid pipe or reservoir, and valve arrangements whereby the elastic fluid may be admitted to,cut off, or exhausted from said chamber, substantially as set forth.

2. In an elevator, the combination, with the cylinder and piston, of a tank containing inelastic fluid, communicating with the cylinder, and with an inlet for compressed elastic fluid, and inlet and outlet ports'and valve appliances, whereby the admission and discharge of the elastic fluid and the consequent operating of the platform is effected, substantially as set forth.

3. The combination,with the piston and cyl inder of an elevator, of a chamber containing an inelastic fluid,and suitable ports and valve appliances, whereby the admission and discharge of an elastic fluid to and from said chamber is made the means of carrying theinelastic fluid to and from the same, and thereby operating. the piston which actuates the platform, substantially as set forth.

4. The combination, with an elevated rail way, of the receiver A,cont-ainin g compressed elastic fluid, the chambers X, containing an inelastic fluid, the valves, cylinders, and pistons, the platforms L, and the connecting devices, substantially as described. 5. A watersupply pipe, Z, combined with the receptacle forthe inelastic fluid, arranged between the elastic-fluid supply-pipe and the piston, substantially as set forth.

In testimony whereof I, N. P.0TIS, the treasurer of O'llS BROTHERS Su-COMPANY, havesigned the name of the said OTIS Bno'rnnas & COMPANY to this specification in the pres enee of two snbscribingwitnesses.

" OTIS BROS. 8; CO.

By N. P..OTIS, Trees. Witnesses:

0. V. WILLIAMS,

WM. H. Mnilnowonor.

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