US1192689A - Sluice, valce, tap, and the like. - Google Patents

Description

- R. C. SAYER.

SLUICE, VALVE, TAP, AND THE LiKE.

APPLICATION FILED luLY, 1915.

1,1 92,689., Patented July 25, 1916.

2 SHEETS-SHEET l.

HG2. Fa-i. 17

R. C. SAYER.

, TAP, ANDIHE LIKE.

APPucATwH FILED xuLY1.191s.

SLUICE, VALVE Patented July 25, 1916.

ROBERT COOKE SAYER, OF REDLAND, ENGLAND.

SLUICE, VALVE, TAP, AND THE LIKE.

Specification of Letters Patent.

Patented Juiy 25, raie.

Appli-cation filed July 1, 1915. Serial No. 37,526.

T o all whom t may concern.'

Be it known that I, ROBERT COOKE SAYER, a subject of the King of Great Britain and Ireland, residing at l1 Clyde road, Redland, Bristol, England, have invented certain new and useful Improvements in Sluices, Valves, Taps, and the like, of which the following is a specification. Y

This invention re-lates to improvements in sluice valves and the like.

One object of the invention is to provide a rotary toothed valve or tap having two or more ports actuated by a worin` or screw within or outside a closed casing to impart full or partial rotation thereto.

Another obj ect is to provide means for retaining the periphery of the valve concentric to the main pipe at different points and to minimize the amount of lateral diversion of the main stream as it passes'through the valve. Another object is to so construct the valve with its approaches and exits at all points arranged to give passage equal to the full bore of the main pipe and at equal speeds by dividing the stream with knife edges to lead the liow to the ports by lugs on the casing.

Another 'object is to provide means for reducing the pressure on the valve seat dure ing its rotation to prevent its being cut and to increase the pressure against the valve through the passages beyond that of its normal face. Y

Another object is to provide peripheral double width split rings to be'thrust against similarly formed packing, the valve and its casing to increase pressure on the valve and render it tight at its face and its seat.

It is known that packed rotary valves exist but it is believed that none have the properties of the present invention. The British Patent 13164 of 1906 resembles it in that the valves 18 and 75 in Figures 1, 5, and 6, are guided by and rotated around the hub 12 and are kept on their seats by intermediate cleats 77 but this structure is wholly different from that of applicants.

In the accompanying drawings: Fig. 1 represents a section taken throughthe casing of a valve constructed in accordance with this invention, the valve being shown open; Fig. 2 is a longitudinal section taken on the line AMA of Fig. l; Fig. 3 is a similar view taken on the line B-B of Fig. 1; Fig. 4 is a detail section taken onthe line C-C of Fig. l; Fig. 5 is a vertical transverse .Stion lpassed through a packed gland 16.

showing an uninclosed valve; Fig. 6 is a longitudinal section taken on line D-D of F ig, 5; Fig. 7 is an enlarged detail view similar in part to Fig. 1, taken on the line Ge-G of Fig. 8 with part of the valve 6 and packing ring 33 broken away to show the passage 32; Fig. 8 is a section taken on the line E-E of Fig. 7 Fig. 9 is a section taken. along the groove 321 of Fig. 7

In the embodiment illustrated in Figs. 1 to 4 the valve 1 as shown has four equally spaced segmental ports 2, 3, 4 and 5 radiating from the center thereof with the smaller ends arranged adjacent the center and which assume the vdotted line position in Fig. 1 when closed. This valve l is provided with peripheral teeth 6 and is retained in position by lugs S and stirrups 23 extending from side to side of the .casing as shown in Fig. l, or by bolts 9 with stirrups 23 as shown in Fig. 5.

The valve casing 7 is constructed in two sections connected by flanges and bolts 9 whereby the stirrups 23 are fixed in position and also split lap rings 33 and 331 with packings 34 and 341 as shown in Figs. 8 and 9 and which are disposed in recesses in the casing 7 and in the valve 1. The sections of the valve'casing 7 are shown secured to the ends of a pipe 10 by bolts 11. The sections of this casing 7 are formed with lugs 1S as shown in Fig. 3 which taper from knife edges 19 to the full width between the ports 2, 3, 4 and 5 whereby the sectional area of the pipe 10 is equally sub-divided to impart to the stream the same area and speedfthroughout. The casing 7 also carries the casing of the worm screw 12 which is positioned at one side of the valve 1 to mesh with the teeth thereof. This screw 12 is mounted in suitable bearings in its casing which is closed by a cover 13 and a shaft 15 is connected with said screw 12 beilig s shown this shaft 15 is connected with the Iscrew 12 by a key 27 and screw bolt 24 which as is shown clearly in Fig. 8. The groove 32 and a tube 31 connected therewith are shown in Fig. 7 disposed beyond and under a groove 321 and tube 311. Hence it will be seenl that pressure always obtains from the pipe 10 at 37 to the groove 32 and pipe 31 to the groove 312 only.

A valve 28 shown in Fig. 7 is raisedat this time and the groove 321 is open through pipe 311, valve 28 and pipe 30 to the exhaust at the outlet side of the valve 1. When the valve 28 is lowered the exhaust at 30 is closed and pressure is admitted from the pipe 10 through the groove 32, pipe 312 through valve 28 to the pipe 313, then through the tube 311 and groove 321 andk acts against the ring 331 and thus balances the valve 1 when turned. The valve or passage 28 is carried by the shaft 15 which is susceptible of vertical movement against the tension of a spring 29 mounted thereon between the bushing of saidshaft and a collar 151 secured thereto. The area of the groove 321 open to the ring 331 is larger than the area of the groove 32 which is open to'the ring 33 thereby more nearly equalizing the pressure against both the sides of the valve 1. Hence to render the valve 1 fluid tight the pressure fluid is constantly admitted through lateral circular passages 38 and 381 against the rings 33 and 331 which latter are formed with peripheral double wedges to t and act against the outer packing 34. The rings 33 and 331 and the packings 34 and 341 are cut and split to overlap as shown.

In Figs. 1 to 7 the valve 1 is closed by pressing a handle 17 carried by the shaft 15 Y downward thereby compressing the spring 29 on said shaft and moving the shaft down thereby cutting oft' the exhaust 30 from the groove 321 and causing the pressure fluid to pass Afrom the pipe 10 to theegroove 321 through pipe 31 to relieve the pressure on the valve 1 and prevent friction. When the handle 17, shaft 15 and worm 12 are turned the valve or passage 28 is cut off from the pipe 31, and the exhaust takes place at 30 as shown in Fig. 8.

The pressure admitted through the passages 37, 38 and 381 are adapted to prevent leakage.

Alternately on the lowering of the handle 17 and shaft 15 whereby the exhaust is cut off from the passage 321 the pressure fluid passes from the pipe 10 to reduce the pressure on the seat of the valve 1, and normal pressure in the passage 32 on the main side of valve 1 from the pipe 10 is exhausted as above so that the pressure on the seat side of the valve 1 acts against that'on the face of said valve only and the lateral or radial pressure through the passages 38'and 381 on the rings 33` and 331 retains the joints in tight relation.

The forms shown in Figs. 5 and 6 are the same as those above described, except that they are made smaller in size to reduce the weight and the valve 1 is not inclosed nor is its screw 12 which is carried by lugs 22 formed on the valve support or casing.

The Worm screw 12 may be actuated by hand or automatically by any well known means when desired and it is to be understood that all facing parts which contact to prevent leakage are efficiently machined for f this purpose.

1 claim as my invention:

1. The combination of a rotary valve having a plurality of ports and provided with peripheral teeth, a worm positioned to mesh with said teeth, a shaft connected to turn said worm, means for restricting the valve at intervals, said means acting against the full width of the periphery of the valve and permitting its rotation to any extent, a casing inclosing said valve and worm, guide lugs on the approaches to said valve, said lugs tapering from knife edges to points between each port of the valve to ll up the interstices and to afford uniform area and speed to the fluid passed to, through and from the valve, passages to regulate theY pressure on the valve seat so that when the valve is closed, closing or open, the pressure is equally distributed.

2. The combination of a rotary valve havy ing a plurality of ports and provided with peripheral teeth, a worm positioned to mesh with said teeth, a shaft connected to turn said Worm, means for restricting the valve at intervals, said means acting against the full `width of the periphery of the valve and permitting its rotation to any extent, a casing inclosing said valve and worm, guide lugs on the approaches to said valve, said lugs tapering from knife edges to points between each port of the valve to fill up the interstices and t0 afford uniform area and speed to the fluid passed to, through and from the valve, passages to regulate the pressure on the valve seat so that when the valve is closed, closing or open, the pressure is equally distributed, a peripheral double wedge split lap ring, packing and seat, and a similar split ring and packing, the pressure side of the valve being always free to be thrust by similar or less pressure from the main pipe against the valve to prevent leaka e.

3. The combination of a rotary valve having a plurality of ports and provided with peripheral teeth, a 'worm positioned to mesh with said teeth, a shaft connected to turn said worm, means for restricting the valve at intervals, said means acting against the full width of the periphery of the valve and permitting its rotation to any extent, a caslugs on the approaches to said valve, said lugs tapering from' knife edges to points between each port of the valve to fill up the interstices and to afford uniform area and speed to the fluid passed to, through and from the Valve, passages to regulate the pressure on the valve seat so that when the Valve is closed, closing or open, the pressure is equally distributed, split peripherally double wedge lap rings, exterior packing to fit said rings, passages and entrances admitting pressure `from the main supply to act upon said rings and packing direct, and to laterally increase pressure on the valve and its seat and thereby render its joints tight.

In testimony whereof I have affixed my y Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Yatents, Washington, D. C.

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