US556695A

US556695A - Ellis l

Info

Publication number: US556695A
Authority: US
Publication date: 1896-03-17
Anticipated expiration: 1913-03-17

Description

(No Mode.)

E. L. ROWB.

VALVE.

Patented Mar. 17. 1896.

awww/nto@ UNITED STATES PATENT EETCEa ELLIS Il. ROWE, OF TROY, NEV YORK, ASSIGNOR TO TI'IE RENSSELAERI MANUFACTURING COMPANY, OF SAME PLACE.

VALVE.

SPECIFICATION forming part of Letters Patent No. 556,695, dated March 17, 1896.

V Application filed March 5,1895.

To f1/U whom t may concern:

13e it known that I, ELLIS L. ROWE, of Troy, in the county of Rensselaer and State of New York, have invented certain' new and useiul Improvements in Valves; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which forin part of this specification.

This invention is an improvement in valves such as are described in my other application for Letters Patent iiled herewith, when such valves are arranged in a horizontal position; and the object of this invention is to prevent choking or jamming ot the gates iu the casing or obstructions forming on the ways or tracks which will prevent the opening and closing of the gates, as will be hereinafter more fully explained.

The invention therefore consists in the novel construction and combination oit' parts hereinafter set forth in the claims, and described in detail as follows.

In the accompanying drawings, Figure l is a longitudinal section through the horizontal valve. Fig. 2 is a transverse section on line 2 2, Fig. l. Fig. 8 is an edge view of the gate.

The valve-casing is made of two partsAA bolted together, the tormerhaving the bronzefaced seats a, and at top and bottoni of the casing are bronze ways or tracks C @which guide the gates E E in their reciprocating or sliding movements in the casing.

The gates are moved back and forth in the easing to close or unclose the water-passage by a threaded stem F, on which is a nut G having flanges fitting corresponding recesses in the opposed faces of the gates. These parts are constructed substantially as described in iny application aforesaid and need no vfurther description herein.

The gates E E are mounted on a pair of rollers F5 F5 having axial trunnionsffgvhich enter corresponding sockets e in the opposed faces of the gates, the wheels coming between the gates and running upon the lower bronzetrack C, as shown, so as to support the gates thereon. As these gates are of great weight in large valves t-he utility of the wheels is evident, but I do not broadly claim the wheels.

Serial No. 540,611. No model.)

To the upper edge of the gates is secured a bronze guide-plate E', which moves close to the upper track C and is of such length that it will effectually prevent the gates rotating on their own axis in case they should encounter an obstacle on. one side or the other, such as a barnacle or lump of rust. As the sliding movement oi' the gate continues such an obstacle would tend to cause the gate to roll and thus bind the nut on the stein, and in some cases has resulted in bending orbreaking the stein or nut, thus rendering the valve worthless. Guides E preventing the gates rotating they must either push the obstacle aside or stop without jamming or injuring the stein.

On the outer end of valve-stem F is a bevel gear-wheel F,\vhich meshes with a bevel-pinion F2 on a stub-shaft F3, journaled in a casting N attached to the outer side of the casing, so that the stein may be operated by a shaft at right angles to the stein when the valve is buried below the sulfate of the earth.

It will be observed that below and around the valve -seats is a cavity II, which is necessary in order to allow the gates to properly iit against the seats. In this cavity the lower track C lies. Naturally this cavity becomes a trap for catching and retaining silt, sand, dao., carried in the water. Experience has proven that in nearly all localities, particularly near the great lakes, the silt deposited by the water becomes very hard, and with ordinary valves this deposit gradually increases until the gates are choked and rendered inoperative, as gates mounted on rollers in the ordinary way, or rolling gates simply pack down this silt, and eventually the deposit becomes so thick and hard that the gates cannot be operated.

At each side of the rollers it will be 0bserved are secured bronze plows or Scrapers J, which are fastened to the gates and run very close to the track O, and are so shaped that they will cut off any deposit of silt or sand on the track and thus keep it continually bright and clean in advance of the rollers. The lower ends y' of the gates plow up the deposits as the gates are opened or closed, and the upturned deposits will be swept through the valve by the rushing water-current. Thus IOO l therollers always move on a clean track and have no opportunity of rolling and packing the silt so as to render the valve unmanageable.

The gates are provided with interlocking pins and sockets E2 VE3 on their opposed faces so that they will be kept together at all times, and if one should break loose from the nut G it will be operated through the other gate.

The plows or scrapers J are, I.believe,wholly novel and of great importance as demonstrated by actual experience.

Having thus described my'invention, what I therefore claim as new, and desire to secure by Letters Patent thereon, is-` 1. In a horizontal valve, the combination of the casing, ythe gate therein, the tracks upon Ywhich the gate is supported and moves, and

plowsV or Scrapers, one at each yside of: and moving with the gate, adapted to clear the track inadvan ce of the gate, substantially as and for the purpose described.

2. In a valve, the combination of the casing, the sliding gates therein, the .rollers carrying said gates, the tracks for said rollers, and a plow or scraper at each side of the supporting-rollers'forl cleaning` the tracks in advance thereof, substantially as and for the purpose set forth;

3. In a horizontal'valve the combination of the casing, the sliding gates therein, the track. intermediate the gates, the rollers between the gates and supporting them on said track, and the plows attached to the gates in advance of Vand behind the rollers, for the purpose and substantially as described.

fi. In a valve, the combination of the casing, the upper and lower tracks therein, the sliding gates supported on the lower track, and the devices for reciprocating` said gates; with a plow or scraper secured to the lower sides of the gates for cleaning the lower track Y in advance of the gates, and the guides attached to the upper sides of gates moving beneath the upper track and adapted to prevent rotation of the gates, substantially as and for the purpose described.

5. In a horizontall valve the combination of the casing, the upper and lower bronze trackssecured therein intermediate the gates, Y

the sliding gatesmoving on opposite sides of said tracks having interlocking lugs and sockets; .and devices substantially as described for operating said gate; with the Wheels car rying said gates and running on said tracks7 the ltrack-clearing plows attach ed to the gates,

respectively in advance of and behind the wheels, and the guide castings attached to the upper side'of gatesto prevent rotation thereof,

all substantially as and for the purpose set