US975240A - Valve for blowers. - Google Patents

Valve for blowers. Download PDF

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Publication number
US975240A
US975240A US1910571154A US975240A US 975240 A US975240 A US 975240A US 1910571154 A US1910571154 A US 1910571154A US 975240 A US975240 A US 975240A
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United States
Prior art keywords
valve
blower
seats
casing
outlet
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
George C Hicks Jr
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P H & F M Roots Co
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P H & F M Roots Co
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Priority to US1910571154 priority Critical patent/US975240A/en
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Publication of US975240A publication Critical patent/US975240A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/0655—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with flat slides
    • 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
    • Y10T137/86879—Reciprocating valve unit

Definitions

  • blowers those of the well known Roots type for instance, it becomes under certain clrcumstances desirable to relieve them entirely of pressure on the discharge side.
  • blowers or blowers of some other types, are driven by electric motors of a certain class, it becomes necessary, after a stoppage of the motor, to restart 'the motor under conditions of no load.
  • a blower has been driven by an engine and, the engine suddenly breaking down, the regurgitation of the air caused the blower to act as a motor, turning in reverse direction, and drive the disabled engine' to its destruction.
  • the present invention relates to a valve for use in connection with blowers and permitting all pressure to be quickly relieved from the discharge side of the blower, and the invention will be readily understood from the following description taken in connection'with the accompanying drawing in which:-
  • Figure 1 is a vertical longitudinal section of a valve exemplifying my present invention: Fig. 2 .a vertical. transverse section of the same: and Fig. 3 a bottom view of the same.
  • the casing I containing the impellers is usually provided with a. toplate and a bottom-plate each provided wlth an opening, one opening forming the inlet and the other the outlet.
  • valve-casin which, in the illustration, is adapted to ta e the place of the ordinary top-plate of a blower so that the discharge side of the blower is always in free communication with the valve casing; 2, the discharge outlet from the valve-casing, representing the usual discharge pipe connection from a blower; 3, a second outlet from the valve-casing, to discharge into the atmosphere; 4, a valve-seat formed within the casing around outlet 2 and adapted to be closed by the shearing motion ofthe gate-valve; 5, a valve-seat formed around the outletl 3, valve-seats 4 and 5 being in a common plane so that a sliding gatevalve may close them alternatively; 6, a gate-valve adapted to slide from one seatto the other so as to close either of the outlets as desired; 7, a track-rail disposed within the casing at each sideof the valve; 8, runners carried by the valve and sliding on the track.- rails and ,adapted to hold the valve near the valve-seat
  • the Valve will be at outlet 3 and held tightly to the valve-seat of that outlet, thus preventing escape of air except through the normal discharge outlet2, precisely as though plate 1 was the usual top-plate of the blower. If, now, there should be a breakdown, or if there should be a motor drive requiring the restarting of the motor under conditions of no load, the valve will be shifted, in an obvious manner, so as to close discharge outlet les can be no regurgitation of the pressure air to drive the motor backward as a motor andl the blower, in being restarted after a stoppage, oiers no resistance due to pressure of discharge. When the blower has gotten into motion then the valve may be shifted back to normal position, closing outlet 3. In shifting the valve there may, of course, be certain waste of pressure air from discharge outlet 2 through outlet 3, but for all practical purposes this is immaterial.
  • a valve for a blower comprising, a plate having through it two openings having surroundin 'va ve-seats with their faces in a common p ane, a gate-valve adapted to slide over said seats and close the openings alternatively, and means for sliding the valve upon the seats, combined substantially as set forth. ⁇
  • a valve for a blower comprising, a plate having through it two openings having surrounding valve-seats with their Jfaces in a common p ane, a gate-valve adapted to slide over said seats and close the openings alternatively, means for sliding the valve upon the seats and means for pressing the valve against the seat of the opening which it may be closing, combined substantially as set forth.
  • a valve for a blower comprising, a plate having through it two openings having surrounding valve-seats with their faces in a common plane, a gate-valve adapted to slide over said seats and close the openings alternatively, means for sliding the valve upon the seats, a track rigidly supported by the plate and adapted to guide the valve in close proximity to the valve-seat, and inclines rigidly supported by the plate in position to be engaged by the valve at either extremity of its travel and force the valve against the seat of the opening which it may be closing, combined substantially as set forth.
  • a valve for a blower comprising, an open-sided valve-casing ada ted to form the outlet-plate of a blower an rovided with two outlet openings havin va ve-seats within the casing, a valve a apted to slide on said seats and close either of the openings, and mechanism for shifting the valve from one seat to the other, combined substantially as set forth.
  • a valve for a blower comprising, an open-sided valve-'casing adapted to form the outlet-plate of a blower and provided with two outlet openings havin valve-seats within the casing, a valve a apted to slide on said seats and close either of the openings, mechanism for shifting the valve from one seat to the other, a rail carried by each sidewall of the casing and adapted to guide the valve in close proximity to the valve-seats, a projection from each side of the valves, and inclines carried by the rails and adapted to be engaged by said projections and force the valve against the seat of the opening which it may be closing, combined substantially as set forth.
  • a valve for a blower comprising, an open-sided valve-casing ada ted to form the outlet-plate of a blower an provided with two outlet openings havin valve-seats within the casing, a valve a apted to slide on said seats and close either of the openings, mechanism for 'shifting the valve from one seat to the other, a rail carried by each sidewall of the casing and adapted to guide the valve in close proximity to the valve-seats, a pivoted shoe projecting from each side of the valves, and inclines carried by the rails and adapted to be engaged by said shoes and force the valve against the seat of the opening which it may be closing, combined substantially asset forth.

Description

G. G. HICKS, JR. VALVE FOR BLOWERS.
APPLICATION FILED JULY 9, 1910A 975,240 y Patented Nov, 8, 1910.
.mllml nllWmh MII NITED STATES PATENT QFFICE.
GEORGE HICKS, JB., 0F CONNERSVILLE, INDIAN-A, ASSIGNOB. TO THE P. H. & F. M.
BOOTS COMPANY, 0F CONNERSVILLE, INDIANA.
vnnviiv non iaLoWEns.l
Specification of Letters Patent.
Patented Nov. 8, 1910.
Application filed July 9, 1910. Serial No. 571,154.
To all whom t may concern:
Be it known that I, GEORGE C. HICKS, Jr., a citizen o f the United States, residing at Connersville, Fayette county, Indiana, have invented certain new and useful Improvements in Valves for Blowers, of which the following is a specification.
In the use of some blowers, those of the well known Roots type for instance, it becomes under certain clrcumstances desirable to relieve them entirely of pressure on the discharge side. When such blowers, or blowers of some other types, are driven by electric motors of a certain class, it becomes necessary, after a stoppage of the motor, to restart 'the motor under conditions of no load. Again, cases have' arisen, in which a blowerhas been driven by an engine and, the engine suddenly breaking down, the regurgitation of the air caused the blower to act as a motor, turning in reverse direction, and drive the disabled engine' to its destruction.
The present invention relates to a valve for use in connection with blowers and permitting all pressure to be quickly relieved from the discharge side of the blower, and the invention will be readily understood from the following description taken in connection'with the accompanying drawing in which:-
Figure 1 is a vertical longitudinal section of a valve exemplifying my present invention: Fig. 2 .a vertical. transverse section of the same: and Fig. 3 a bottom view of the same.
In blowers of the .Roots type the casing I containing the impellers is usually provided with a. toplate and a bottom-plate each provided wlth an opening, one opening forming the inlet and the other the outlet. I illustrate my present invention in connection with the top-plate of such a blower and on the assumption that the blower discharges at its top.
In the drawing :-1, indicates a Valve-casin which, in the illustration, is adapted to ta e the place of the ordinary top-plate of a blower so that the discharge side of the blower is always in free communication with the valve casing; 2, the discharge outlet from the valve-casing, representing the usual discharge pipe connection from a blower; 3, a second outlet from the valve-casing, to discharge into the atmosphere; 4, a valve-seat formed within the casing around outlet 2 and adapted to be closed by the shearing motion ofthe gate-valve; 5, a valve-seat formed around the outletl 3, valve-seats 4 and 5 being in a common plane so that a sliding gatevalve may close them alternatively; 6, a gate-valve adapted to slide from one seatto the other so as to close either of the outlets as desired; 7, a track-rail disposed within the casing at each sideof the valve; 8, runners carried by the valve and sliding on the track.- rails and ,adapted to hold the valve near the valve-seats at all times; 9, a pair of racks,
one under each side, these racks being preferably formed separately from the valve and secured thereto, the illustration showing the racks a's being dovetailed into the valve; 10, a shaft journaled in the valve-casing across and under the valve; 11, pinions fast on the shaft, one engaging each of the racks; 12, an outward projection' from each side of the valve at its center length, these projections being in the form of shoes pivoted to the valve, the common axis of the two shoes being in a line at ri ht angles to the sliding movement of the va ve, the shoes projecting outwardly beyond track-rails 7, which trackrails are supported at a distance inwardly from the side-walls of the casing; 13, an incline rigidly supported by the valve-casing just outside each track-rail, and in such longitudinal position that when the valve is finally closing outlet 3 the shoes will ride up on the inclines and force the valve tightly to valve-seat 5; 14, a pair of similar inclines, but so disposed longitudinally `in the valvecasing that the shoes will cooperate with them and force the valve to valve-seat 4 when the valve is finally closing discharge outlet 2; and 15, a hand-wheel on the shaft.
IVhen the blower is in normal operation, the Valve will be at outlet 3 and held tightly to the valve-seat of that outlet, thus preventing escape of air except through the normal discharge outlet2, precisely as though plate 1 was the usual top-plate of the blower. If, now, there should be a breakdown, or if there should be a motor drive requiring the restarting of the motor under conditions of no load, the valve will be shifted, in an obvious manner, so as to close discharge outlet les can be no regurgitation of the pressure air to drive the motor backward as a motor andl the blower, in being restarted after a stoppage, oiers no resistance due to pressure of discharge. When the blower has gotten into motion then the valve may be shifted back to normal position, closing outlet 3. In shifting the valve there may, of course, be certain waste of pressure air from discharge outlet 2 through outlet 3, but for all practical purposes this is immaterial.
I claim l l. A valve for a blower comprising, a plate having through it two openings having surroundin 'va ve-seats with their faces in a common p ane, a gate-valve adapted to slide over said seats and close the openings alternatively, and means for sliding the valve upon the seats, combined substantially as set forth.`
2. A valve for a blower comprising, a plate having through it two openings having surrounding valve-seats with their Jfaces in a common p ane, a gate-valve adapted to slide over said seats and close the openings alternatively, means for sliding the valve upon the seats and means for pressing the valve against the seat of the opening which it may be closing, combined substantially as set forth. y
3. A valve for a blower comprising, a plate having through it two openings having surrounding valve-seats with their faces in a common plane, a gate-valve adapted to slide over said seats and close the openings alternatively, means for sliding the valve upon the seats, a track rigidly supported by the plate and adapted to guide the valve in close proximity to the valve-seat, and inclines rigidly supported by the plate in position to be engaged by the valve at either extremity of its travel and force the valve against the seat of the opening which it may be closing, combined substantially as set forth.
4. A valve for a blower comprising, an open-sided valve-casing ada ted to form the outlet-plate of a blower an rovided with two outlet openings havin va ve-seats within the casing, a valve a apted to slide on said seats and close either of the openings, and mechanism for shifting the valve from one seat to the other, combined substantially as set forth.
5. A valve for a blower comprising, an open-sided valve-'casing adapted to form the outlet-plate of a blower and provided with two outlet openings havin valve-seats within the casing, a valve a apted to slide on said seats and close either of the openings, mechanism for shifting the valve from one seat to the other, a rail carried by each sidewall of the casing and adapted to guide the valve in close proximity to the valve-seats, a projection from each side of the valves, and inclines carried by the rails and adapted to be engaged by said projections and force the valve against the seat of the opening which it may be closing, combined substantially as set forth.
6. A valve for a blower comprising, an open-sided valve-casing ada ted to form the outlet-plate of a blower an provided with two outlet openings havin valve-seats within the casing, a valve a apted to slide on said seats and close either of the openings, mechanism for 'shifting the valve from one seat to the other, a rail carried by each sidewall of the casing and adapted to guide the valve in close proximity to the valve-seats, a pivoted shoe projecting from each side of the valves, and inclines carried by the rails and adapted to be engaged by said shoes and force the valve against the seat of the opening which it may be closing, combined substantially asset forth.
GEORGE C. HICKS, JR.
Witnesses:
E. D. JOHNSTON, J. F. SCHWEBKLE.
US1910571154 1910-07-09 1910-07-09 Valve for blowers. Expired - Lifetime US975240A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2891567A (en) * 1955-11-25 1959-06-23 Blaw Knox Co Reversing valve mechanism
US2998828A (en) * 1958-09-08 1961-09-05 Dynex Inc Slide plate type volume control valve
US3049223A (en) * 1959-10-21 1962-08-14 Chain Belt Co Slide gate for vibratory conveyors
WO2019009707A1 (en) * 2017-07-05 2019-01-10 Leo Dynamische Investering B.V. Dredge gate valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2891567A (en) * 1955-11-25 1959-06-23 Blaw Knox Co Reversing valve mechanism
US2998828A (en) * 1958-09-08 1961-09-05 Dynex Inc Slide plate type volume control valve
US3049223A (en) * 1959-10-21 1962-08-14 Chain Belt Co Slide gate for vibratory conveyors
WO2019009707A1 (en) * 2017-07-05 2019-01-10 Leo Dynamische Investering B.V. Dredge gate valve
NL2019183B1 (en) * 2017-07-05 2019-01-16 Leo Dynamische Investering B V Dredge gate valve

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