US332418A

US332418A - Morey

Info

Publication number: US332418A
Authority: US
Publication date: 1885-12-15
Anticipated expiration: 1902-12-15

Description

Sheet 1.

lg' P. F

HYDRAULIC ELBVATR.

No Model.)

. MORBY.

Patented Deo. 15

INVBNTOR WITNBSSES ATTORNEYS.

N. PEYERS. pmu-ulmyapfwr. wnhinmun. D. c.

Yil'Nrrnn STATES 'ArnNr rrrcn.

PARKER FARNSVVORTH MOREY, OF PORTLAND, OREGON.

HYDRAULIC ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 332,418, dated December 15, 1885.

Application filed June 18, 18E5.

To all whom it may concern,.-

Be it known that I, PARKER FARNswoRfrrr MOREY, of Portland, in the county of Multnomah and State of Oregon, have invented a new and Improved Hydraulic Elevator, ot' which the following is a full, clear, and exact description.

My invention relates to telescoping hydraulic elevators, and has for its principal object to improve their construction, so as to insure a practically uniform steadiness of movement of the platform or carriage both ways.

The invention consists in certain novel features of construction and combinations of parts of the elevator, all as hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings, forming part of this specilication in which similar letters of reference indicate corresponding parts in all the gures.

Figure l is a vertical sectional elevation of a hydraulic elevator embodying my improvements and partly broken away. Fig. 2 is a detail sectional view of the head of the main stand-pipe. Fi g. 3 is an enlarged bottom view of one ofthe telescoping rams of the elevator, with the valve-closing spring broken away. Fig. 4 is a side elevation of the valves and their operating devices which control the Water-supply to and from the telescoping rams ofthe elevator, and shows also a portion of the main stand-pipe and the adjacent wallsof the elevator-shaft; and Fig. 5 is a View taken at a right angle to the same parts in Fig. 4, and with the head of the stand-pipe and the rams in vertical transverse section.

The letter A indicates the main fixed standpipe of the elevator, in the upper end or head portion A of which pipe is made an opening, B, Figs. 2 and 5, into which opening is tted the end of a pipe, B', which is connected at its other end with a pipe, B2, to the opposite ends of which are connected the water-inlet valve B3 and water-outlet valve B", with which valves, respectively, are connected the watersupply pipe b', which is to be connected with a water-supply, and the waste-pipe b2, which may lead to any point at which the water is to be discharged. (See Figs. 4 and 5.) rlhe stem b3 ofthe disk of valve B3 is connected to a lever, b5, which is pivoted in the elevatorshaft, the inner end of which lever is forked,

Serial No. 160,132. (No model.)

and the stem b* of the disk of valve B" is connected to a like pivoted lever, b, so that a wheel, B5, also pivoted in the elevator-shaft, and to which the attendants pull-rope B6 is connected, may be turned to carry its pin bl over and downward upon the lower limb, l, ofthe fork of lever b5 by pulling down ou the side 2 of the rope B,to open the valve B and admit water through pipe b to the stand-pipe A, to lift the telescoping rams and elevatorcarriage, and when the side 3 of the rope BG is pulled down or the side 2 is pulled up the piu b7 of wheel B5 will be caused to lower the limb 4 of lever b, to lift the stem b" and open the outlet-valve B4, to let the water escape from the rams and stand-pipe to allow the elevatorcarriage to descend. The contact of the pin b' with the upper limbs of the forked levers acts to close either valve which may be open. By this arrangement of valves and operating devices therefor the water-distribution to andfrom the stand-pipe A, and the telescoping rams therein may be controlled at pleasure by the attendant to start and stop the carriage, and by stops put on the pull-rope, the motion of the wheel B5 will be reversed to shut off the water when the carriage reaches the extreme limit of its ascent or descent, and in a wellknown manner.

The elevator shown in the drawings, Fig. l, has three telescoping water tubes or rams, O D E, arranged to rise successively from the stand-pipe and from each other, to lift the platform or carriage F, which is iixed to the head of ram E, and may have any approved size or construction. Arms G H, iiXed to iianges on the heads or upper portions of the rams C D, respectively, carry rollers g h, respectively, at their outer ends, which rollers are to run in slots or guideways of the elevatorshaft, to steady the rams and platform F as they move up and down in the shaft. In the head A of the stand-pipe A is iixed, by setscrews i or otherwise, a ring, I, above which is arranged a cup-leather packing, J, which inclines downward, and is intended to pack the joint between the stand-pipe A and the first ram, C, and over the cup leather J a few rolls of hemp or other fibrous packing, K, may be placed to prevent escape of water to and past the gland A, which is held to the cap or head A of pipe A by set-screws ai,

ICO

which also secure to the top of the gland A2 an elastic buffer or buffers, as at L, on which the head C may strike, to limit its descent without shock.

The heads O D of rams C D each are fitted with a ring, I, and cupleather packing J, and it may be with iibrous packing K, as in Fig. l, to center the rams and guide the movements of ram D in ram C, and of ram E in ram D, and to pack the joints of the rams, substantially as above described, for the stand-pipe A and ram C. A buffer or buffers, M, are fixed to the gland C2 of ram G, and it may be by the gland-fastening screws c2, and, if desired, a buffer or buffers, N, may be fixed to the gland D2 of ram D, to limit the descent of the ram E in ram D, as in dotted lines in Fig. l, but for this latter purpose buffers may be arranged in the elevator-shaft, so as to be struck by the platform F, or on the platform to strike the :tloor of the shaft.

The rings I serve not only to guide one ram in the other and the lower ram in the standpipe, but they serve to operate the water-inlet foot-valves at the proper time, as presently explained.

The cup-leathers, owing to their downward 'incline toward the rams which they pack, will be forced closely to the rams by the pressure of the water passing the rings I, so that practically tight `joints around the rams will be secured by means of the water pressure or head by which the rams are lifted.

Each of the rams C D E is fitted with a foot piece or block screwed or otherwise secured to its lower end, the foot-blocks O P of Vrams C D, respectively, being fitted with water inlet and outlet valves, presently described, and the foot-block R of the ram E being solid or imperforate and valveless, as the water merely lifts said ram and does not enter or pass through it. The valves of the rams C D have like construction, and consist of an inlet-valve, S, which is held, preferably, by a loose connection, to a lug, t, of a plate, T, which is fitted, preferably, by a dovetailed joint, as seen in Fig. 3', to the foot-block of the ram, so as to slide up and down in or on the block to allow the valve S to seat itself in an aperture, s, of the foot-block through which aperture the water enters the ram when the valve is opened. I prefer to make the valves S with a conveXed outer end and hold them to the lugs tof slides "I by screws t, passed upward through said lugs into the centers of their outer ends, as shown clearly in Fig. l. The valves Shave a tapering form, so they in opening will allow a gradual entrance of the water to the interior of the rams, and springs U, fixed suitably to projections u of the foot-block O P, close the valves S by fitting the valve-slides T when the slides are out of contact with the ram-head rings I, which open the valves.

The outlet-valves consist of ordinary checkvalves V, seating upward to close the water- .,'outlet .passages o in the foot-blocks of the rams, said valves V being supported each in a suitable spider frame or case, W, which has a neck or collar,w, tted to a hole in the ram foot-block, the opening through the collar w forming the outlet-passage c.

The operation of the elevator is as follows: We will suppose the carriage or platform F is fully down, as in Fig. l. When the water is admitted to stand-'pipe A through the inletpipe at B the lowest and outer ram, O, will be lifted by the pressure of the water on its foot block O, and will carry the upper rams with it until the valve-slide T on ram C strikes the ring I at the head of stand-pipe A and moves said slide downward, which opens valve S of ram G gradually, so that the water will flow from the filled stand-pipe A into the ram C and act on the foot-block P of ram D lto lift it from ram C until the valve-slide T of ram D strikes the ring I at the head of ram C,to openv the valve S of ram D and allow the water to to let the water owfrom ram C until the head.

D of ram D strikes the buffers M, whereupon the outlet-valve V of ram D willopen to allow discharge of water from ram D and permit ram E to fall with the water. The valves S of the rams are closed by the springsUimmediately as the valve-slides T leave the rings I.

The ascent and descent of the carriage may be controlled, so as to stop the carriage at any place desired by a proper manipulation of the IOO water inlet and discharge valves in the standpipe A, as will readily be understood.

The arrangement and operation of the long tapering inlet-valves S are important features of my invention, as the gradual opening lofv said valves due to their taper controls the How.

of the water to the successive rams to cause the rams to start upward without jar, and Vso that the initial lifting movements of the successive rams can scarcely if at. all be felt as the carriage rises, which is an important consideration with elevators of this oharacter, as inlet-valves opening suddenly to admit the water to the successive rams in considerable volume at once would give sudden starts to the carriage as each successive ram compering foot-valves in the rams, the carriage always will be lifted with a practically unbroken smoothness of movement.

The long tapering inlet-valves S, working.-

within an opening, s, of practically uniform diameter or area for its whole length, are not to be confounded with the ordinary shortheaded or shallow valves having quick bev- -menced to move, while, by the use of the Ataeled or tapered faces which close upon cor. respondingly quick beveled seats, andsuch as are used in hydraulic rams or in pumps, engines,and other machinery, as it is evident that the long taper of the valve is necessary to give the valve a comparatively long continued opening movement or withdrawal from the base of the opening s at the same rate of speed as the elevator-carriage has while being lifted, sothat the gradual ilow of the water into the next higher ram will be assured, and which would not be the case if the shallowr quick-tapered valve above named were used, as the speed of the rising ram would fully open the valve much too quickly, and the water would rush into the ram with an impetus which would jar the carriage, and which my long tapering valve is specially designed to avoid.

By placing thedownwardly-opening checkvalves V in the foot-blocks of the rams the outer` telescoping rams will successively be lifted and let fall, and the lowering of the carriage will be effected with a smoothness of movement not attained in hydraulic elevators having the outlet-valves otherwise arranged, or placed above the foot ofthe rams, which allows air to trap into the rams and causes unsteady lowering of the carriage, all of which is obviated by my arrangement of the outlet-valves.

Having thus described my invention, what I claim as new,and desire to secure by Letters Patent, is-

l. In hydraulic elevators, the combination, with the foot-block of a telescoping ram,pro vided with an opening or valveway, s, formed substantially as specified, of a valve, S, made in long tapering form and adapted to opening S, and arranged to be opened as the ram rises by contact of a device to which the valve is attached, with a stop fixed at or near the head ofthe pipe in which the ram moves, substantially as herein set forth.

2. In hydraulic elevators, the combination, with the teleseoping rams, of downwardlyopening inlet-valves iitted to slides guided on the rams, stops in the stand-pipe positioned to be struck by the valveslides to open the valves as the rams are lifted, and springs acting to close the Valves, substantially as herein set forth.

8. Inhydraulic elevators, the combination, with the telescoping rams, of downwardlyopening inlet-valves fitted to slides guided on the rams, and rings I in the stand-pipe, and successive rams serving as stops to be struck by the valve-slides to open the valves, and serving also as guides to the moving rams, substantially as herein set forth.

4. A hydraulic elevator, comprising a main stand-pipe connected with water-distributing inlet and outlet valves, substantially as specified, a telescoping ram itted in the standpipe and provided with opening s and long tapering inlet-valve S, adapted to said opening s, and arranged to be opened as the ram rises by contact of a device to which the valve is attached, with a stop rixed at or near the head of the pipe in which the ram moves,a spring adapted to close the tapering valve S as the ram first falls, and adownwardly-opening outlet-valve fitted in the foot-block of the ram, substantially as herein set forth.

PARKER FARNSWORTH MOREY.