US314341A - Reversing-valve - Google Patents

Reversing-valve Download PDF

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US314341A
US314341A US314341DA US314341A US 314341 A US314341 A US 314341A US 314341D A US314341D A US 314341DA US 314341 A US314341 A US 314341A
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Prior art keywords
valve
reversing
engine
steam
spindle
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/09—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by means for actuating valves
    • B62D5/093—Telemotor driven by steering wheel movement
    • B62D5/097—Telemotor driven by steering wheel movement gerotor type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86638—Rotary valve
    • Y10T137/86646—Plug type
    • Y10T137/86662—Axial and radial flow

Definitions

  • This invention consists in a reversing cock or vali e divided longitudinally into separate compartments with ports in its sides, substantially as hereinafter described, and arranged for operation within a suitable case, whereby either valve-portis made to serve as an inlet or outlet, the valve is kept up close to its seat, and by the construction of the dividing partition of the valve it may be readily removed from its spindle; and it also includes a peculiar valvular construction of the spindle of the valve, held up to its seat by springpressure, and other details in combination with the engine valve or valves, which said reversingvalve serves to control, as herein after set forth.
  • Figure 1 represents a mainly sectional side view of a double-cylinder engine in part with my invention applied, one of the engine-cylinders, with a portion of its steam-chest not being in section.
  • Fig. 2 is a partly broken or sectional plan of the same.
  • Fig. 3 is a longitudinal section, upon alarger scale, of the reversing-valve, with its casing and attachments shown in Figs. 1 and 2; and
  • Fig. 4 is a transverse section of said reversingvalve.
  • Fig. 5 is an end view of a modified construction of the reversing-valve with other immediate parts suitable for a single-cylinder engine, also showing a longitudinal section of said valve detached.
  • a A indicate the two cylinders of a double-cylinder piston-engine, each one of which has the usual ports, I) 1), connecting with its opposite ends, and controlled by a spool or other suitable valve, B or B, in the usual or any suitable manner.
  • 0 G are the cylinders of said valves.
  • the reversing-valve D Arranged midway between these cylinders is the reversing-valve D, which is of cock form or conical shape, but only of sufficient taper to provide for its being ground to a good fit.
  • the reversing-valve D is divided longitudinally into two compartments by means of a central longitudinal partition, 0, extending throughout the length of the valve, and terminating in opposite end branches, 0'0 which radiate, respectively, toward opposite sides of the valve-case, to separate the live steam from the exhaust.
  • the live steam is introduced by pipe (Z to the larger end of the tapering valve, and serves to hold the valve to its seat in the case, the exhaust-steam passing off by a pipe, d, at the opposite end of the valve-case.
  • the smaller end of the valve is turned to fit against a shouldered portion, 6, of an end cap, F, on the valve-case.
  • the longitudinal rib c of the valve is made hollow throughout its center, and of square or angular form in its transverse section internally, to form a socket which is closed on the steam-inlet end of the valve for the purpose of receiving a correspondingly-shaped spindle, G, by which the valve is operated.
  • This spindle is not secured to the valve, so that whenever it is necessary to remove the valve it is only requisite to remove a cap, F, on the steam-inlet or larger end of the valve-case, when the cock or valve is free to be taken out.
  • the sides of the valve have opposite ports,f f, in them, as more clearly shown in Fig.
  • the one of these ports serves to pass steam to and the other to exhaust steam from the enginecylinder valves too" B B by means of passages g g in the case E, and connecting with the cylinders O either passage 9 or serving for passage of the live steam and the other for the exhaust, accordingly as the valve is shifted or turned to reverse the engine.
  • the steam-passage g org for the live steam for one direction in the motion of the engine becomes the exhaustpassage in an opposite-moving direction of 10 the engine, and vice versa.
  • the portion of the sides of the valve D between its portsff are adjusted by the turning of the valve to close communication with the pas- I 5 sages g g.
  • the valve is turned to reverse the engine by means of a hand-lever, H, on the spindle G, and, by using wide valve-ports, said lever will not require to travel through the same length of are as if the ports were narrower.
  • the construction of the valve D is such that it cannot be placed after removal in a wrong position to work.
  • the valve-spindle G has a collar, 71, on its outer end portion, turned and constructed to form a valve that sits on or against a seat, 2', in the cap F, and is kept closed thereon, to
  • the modification represented in Fig. 5 is designed for single-cylinder engines, and shows a generally siinilarly-constructed reversing valve D, to which (I is the steam-inlet and d the exhaust-outlet from the case, and B is the engine-valve, but with the ports running through said reversing-valve, which may be held to its place by a nut at its smaller end, and be operated by a square spindle fitting a socket in its larger end.
  • the reversing cocklike valve D of tapering construction in direction of its length, and divided longitudinally by a hollow partition into separate compartments, with ports in its sides arranged for operation in connection with fixed ports or passages in its case, as described, and whereby either passage of the valve-case is made to serve as an 7 inlet or as an outlet accordingly as the valve is reversed, substantially as specified.
  • the reversing-valve D of circular tapering form, divided longitudinally by a hollow partition, 0, having opposite end branches, 0 0", 011 reverse sides, respectively, of the axial line of the valve, into inlet and exhaust compartments provided with exterior side ports, ff, in combination with an inclosingcase having inlet and outlet passages g g, for operation substantially as described.
  • valve-spindle G constructed with a valvular collar, h, held up to or against its seat by spring'pressure, as described, in combination with the cock-like reversing-valve D,divided into opposite openended compartments, as specified, and having thelongitudinal portion 0 of its partition constructed to form asocket closed at its one end and of angular construction transversely for engagement with said spindle, and the case E, within which said "alve works, and its caps F F, substantially as described.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Description

(N0 Mo el.) I:
E? O E. REVERSING VE.
Patented Mar. 24, 1885.
(g3 fi ATTORNEYS.
UNrrsn STATES PATENT @rrica.
ENOS L. MOORE, or ronrs rourrr, OHIO.
REVERSIN G-VALVE.
SPECIFICATION forming part of Letters Patent No. 314,341, dated March 24, 1885.
Application filed April 30, 1884. (No model.)
To ctZZ whom it may concern.-
Be it known that I, ENos L. MOORE, of Portsmouth, in the county of Scioto and State of Ohio, have invented certain new and useful Improvements in Reversing-Valves for Steam and other Engines, of which the following is a full, clear, and exact description.
This invention consists in a reversing cock or vali e divided longitudinally into separate compartments with ports in its sides, substantially as hereinafter described, and arranged for operation within a suitable case, whereby either valve-portis made to serve as an inlet or outlet, the valve is kept up close to its seat, and by the construction of the dividing partition of the valve it may be readily removed from its spindle; and it also includes a peculiar valvular construction of the spindle of the valve, held up to its seat by springpressure, and other details in combination with the engine valve or valves, which said reversingvalve serves to control, as herein after set forth.
Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.
Figure 1 represents a mainly sectional side view of a double-cylinder engine in part with my invention applied, one of the engine-cylinders, with a portion of its steam-chest not being in section. Fig. 2 is a partly broken or sectional plan of the same. Fig. 3 is a longitudinal section, upon alarger scale, of the reversing-valve, with its casing and attachments shown in Figs. 1 and 2; and Fig. 4 is a transverse section of said reversingvalve. Fig. 5 is an end view of a modified construction of the reversing-valve with other immediate parts suitable for a single-cylinder engine, also showing a longitudinal section of said valve detached.
Referring in the first instance to Figs. 1, 2, 3, and 4. of the drawings, A A indicate the two cylinders of a double-cylinder piston-engine, each one of which has the usual ports, I) 1), connecting with its opposite ends, and controlled by a spool or other suitable valve, B or B, in the usual or any suitable manner. 0 G are the cylinders of said valves. Arranged midway between these cylinders is the reversing-valve D, which is of cock form or conical shape, but only of sufficient taper to provide for its being ground to a good fit. As here arranged it is not only midway between the two cylinders, but its longitudinal axis occupies a transverse relationship to the axes of the cylinders; but it might be differently-arranged relatively to the axes of the cylinders, and, instead of being directly connected with said cylinders, as here shown, it might be attached thereto by means of independent pipes. Said valve, however, as here shown, is fitted to work within a case, E, directly connecting the two cylinders O O and forming, with its passage, a single casting. This arrangement serves to brace the engine-cylinders and to make the whole simple and easy of access.
The reversing-valve D is divided longitudinally into two compartments by means of a central longitudinal partition, 0, extending throughout the length of the valve, and terminating in opposite end branches, 0'0 which radiate, respectively, toward opposite sides of the valve-case, to separate the live steam from the exhaust. The live steam is introduced by pipe (Z to the larger end of the tapering valve, and serves to hold the valve to its seat in the case, the exhaust-steam passing off by a pipe, d, at the opposite end of the valve-case. To prevent the pressure of the steam from looking the valve and making it hard to operate, the smaller end of the valve is turned to fit against a shouldered portion, 6, of an end cap, F, on the valve-case. The longitudinal rib c of the valve is made hollow throughout its center, and of square or angular form in its transverse section internally, to form a socket which is closed on the steam-inlet end of the valve for the purpose of receiving a correspondingly-shaped spindle, G, by which the valve is operated. This spindle is not secured to the valve, so that whenever it is necessary to remove the valve it is only requisite to remove a cap, F, on the steam-inlet or larger end of the valve-case, when the cock or valve is free to be taken out. The sides of the valve have opposite ports,f f, in them, as more clearly shown in Fig. 4, and which may be of any desired width, but each of which is here shown as occupying one-fourth of the circumference of the valve. The one of these ports serves to pass steam to and the other to exhaust steam from the enginecylinder valves too" B B by means of passages g g in the case E, and connecting with the cylinders O either passage 9 or serving for passage of the live steam and the other for the exhaust, accordingly as the valve is shifted or turned to reverse the engine. Thus the steam-passage g org for the live steam for one direction in the motion of the engine becomes the exhaustpassage in an opposite-moving direction of 10 the engine, and vice versa. WVhen required to stop the motion of the engine, then the portion of the sides of the valve D between its portsff are adjusted by the turning of the valve to close communication with the pas- I 5 sages g g. One-half of the bearing-surface of said valve D, excepting near and at its ends, may be cut away. The valve is turned to reverse the engine by means of a hand-lever, H, on the spindle G, and, by using wide valve-ports, said lever will not require to travel through the same length of are as if the ports were narrower. Again, the construction of the valve D is such that it cannot be placed after removal in a wrong position to work.
The valve-spindle G has a collar, 71, on its outer end portion, turned and constructed to form a valve that sits on or against a seat, 2', in the cap F, and is kept closed thereon, to
prevent leakage of exhaust-steam, either by a spiral spring arranged around the spindle, between the end of the valve and said collar, or by making the reversing-lever H a spring one, so that when engaged with any one of a series of three notches, 7c, in an are, I, over or" against which said lever moves, and with either one of which notches it is engaged accordingly as the valve is reversed or adjusted into a shut-off position, said lever by its ten- 0 sion will operate to hold the valve-collar h of the spindle up to its seat 2; and as the valve is subjected to no pressure having a tendency to move it from its set -position, the margins of the notches in may be rounded off to facili- 5 tate the engagement and disengagement of the lever, and a thin steel reversinglever will suffice, whereby the engine may be controlled from a distance by means of a rope, cord, or wire connected with the reversing-lever, which will be found especially advantageous when the engine is applied to work an elevator.
The modification represented in Fig. 5 is designed for single-cylinder engines, and shows a generally siinilarly-constructed reversing valve D, to which (I is the steam-inlet and d the exhaust-outlet from the case, and B is the engine-valve, but with the ports running through said reversing-valve, which may be held to its place by a nut at its smaller end, and be operated by a square spindle fitting a socket in its larger end.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is
1-. The reversing cocklike valve D, of tapering construction in direction of its length, and divided longitudinally by a hollow partition into separate compartments, with ports in its sides arranged for operation in connection with fixed ports or passages in its case, as described, and whereby either passage of the valve-case is made to serve as an 7 inlet or as an outlet accordingly as the valve is reversed, substantially as specified.
2. The reversing-valve D, of circular tapering form, divided longitudinally by a hollow partition, 0, having opposite end branches, 0 0", 011 reverse sides, respectively, of the axial line of the valve, into inlet and exhaust compartments provided with exterior side ports, ff, in combination with an inclosingcase having inlet and outlet passages g g, for operation substantially as described.
3. The circular tapering reversing-valve D, divided longitudinally into opposite compartments,open, respectively,at reverse ends ofthe valve on opposite sides of it, and having side ports, ff, and with the longitudinal portion 0 of its partition constructed to form a square or angular'socket for reception of the spindle by which the valve is turned or operated, es-
sentially as specified.
4. The loosely-fitting valve-spindle G, constructed with a valvular collar, h, held up to or against its seat by spring'pressure, as described, in combination with the cock-like reversing-valve D,divided into opposite openended compartments, as specified, and having thelongitudinal portion 0 of its partition constructed to form asocket closed at its one end and of angular construction transversely for engagement with said spindle, and the case E, within which said "alve works, and its caps F F, substantially as described.
5. The combination, with the valve-casing E, caps F F, the notched are I, and the valve D, provided with the hollow partition 0, of the stem G, provided with the collar h, and the spring-lever H, substantially as herein shown and described.
6. The combination, with the valve D, provided with the socketed partition 0, and the stem G, of the casing E, provided with the caps F F, substantially as herein shown and described, whereby provision is made for re moving the valve without removing its stem, as set forth.
EN OS L. MOORE.
\Vi tn esses:
VT. 0. HAMMILL, JNO. M. MOORE.
ICC
IIO
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391610A (en) * 1963-10-22 1968-07-09 Pusnes Mek As Steam engines for ship winches having gravity flow of condensate through the slide valves
US20080084365A1 (en) * 2002-04-26 2008-04-10 Toshiba Matsushita Display Technology Co., Ltd. Drive method of el display panel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391610A (en) * 1963-10-22 1968-07-09 Pusnes Mek As Steam engines for ship winches having gravity flow of condensate through the slide valves
US20080084365A1 (en) * 2002-04-26 2008-04-10 Toshiba Matsushita Display Technology Co., Ltd. Drive method of el display panel

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