US1154811A - Valve. - Google Patents

Description

W. R. SAVAGE.

VALVE.

APPLICATION FILED N0v.1. 1912.

Patented Sept. 28, 1915.

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VALVE.

Specication of Letters Patent.

Patented Sept. 28, 1915.

Application mea November 1, 1912. serial No. 729,133.

f To all whom t may concern Be it known that I, WILL R. SAVAGE, a

citizen of the United States, and a resident` of Omaha, in the county of Douglas and State of Nebraska, have invented certain new and useful Improvements in Valves, of which the following is a specification.

My invention relates to valves of the class employed for controllingy theV passage of fluids through pipes.

It is the object of my invention to provide ina valve of this kinda structure such that the Huid in passing through the valve will be deflected as little as possible fromV a straight line; to provide means by which the contacting surfaces of the valve-disk and valve-seat will tend to preserve smooth surfaces; to provide means by which the contacting parts of the valve-disk and valveseat may be trued up or renewed readily;

and to provide novel actuating means rfor y moving the valve-disk toward and away from the valve-seat.

In the accompanying drawings, Figure 1 v is a longitudinal 4sectional viewr ofa valve embodying my invention,Fig. 2 is an end view of the same, Fig. 8 is a transverse sectional view taken Aon the plane of the line 3--3 of Fig. 1, and Fig. 4 is a detaillsection of the valve-disk.`

In the construction Vshown I provide a globular body 5 which has at one end a hexagonal portion 6 threaded internally to receive a pipe, and at the other end has a cylindrical neck-portion 7. The said neck-portion is internally threaded and the Vannular valve-seat-body 8 is screwed into the same. The body 8 is integralwith a hexagonal portion 9 which is internally threaded similarly to the body-portion 6, to receive the-endof apipe. Adjoining the valve-seat, within the body. 1 and integral therewith, are several radially extending ribs 10 which form guides for the valve-disk 11. On the face of the valve-disk adjoining the seat 8 av facing-plate 12 is secured, being held thereon by means of a washer 13 and a nut 14 which is screwed onto the end of the valve-stem 15. One or more dowel-pins 16 may -be provided, as shown in Fig. 4, to prevent rotarv movement of the facing-plate relative to the disk. The nut l14 also serves to hold thel valve-disk against a shoulder on thestem, and dowelthreaded portion 18 which is screwed into a nipple 19, the nipple being concentric with the body 5 and integral therewith. The intermediate part lof the valve-stem has a spiral gear 20 formed thereon, which fits revolubly within the unthreaded portion of the nipple 19, and which meshes with a similar gear 21 formed on the transverse stem 22. The transverse stem passes through a packing-glandv 23, arrangedin the side of the body 5 as shown in Fig. 8, and at its outer end carries a hand-wheel 24 by which it may be revolved. l/Vhen the hand-wheel is turned the connection formed by the spiral gears 20 and 21v causes the valve-stem to be similarly revolved, and the threaded lconnection Vbetween the stemand the nipple 19 will cause the stem to move longitudinally so that'the valve-disk will be moved toward or away from the seat, according to the direction of rotation of the stem. It will be' noted that the connection formed by the spiral gears is such that their operation is not affected by the longitudinal movements of the valve-stem.

In opening and closing the valve the rotative movement of the disk relative to the seat as it passes into and out of contact therewith, will tend to wear the contacting surfaces evenly and thus preserve them in such condition that a tight joint may be formed between them. Should the seat become unevenly worn or corroded it may be readily removed from the valve-body and either trued up or replaced with a new one. The facing-plate 12 may also be easily 'removed or renewed when it becomes worn or corroded.

It will be obvious that the facing-plate may be made of a material different from that of the valve-seat or the valve-disk 11, the selection of the material employed being governed by the nature of the fluids which are to pass through the valve. It will be apparent also that the valve may be of very small size proportionately to the size of the opening through it, in practice the'valvebodybeing smaller thanthat of an ordinary globe-valve of the same capacity, and the valve-opening being such that a more direct passage for'the luids isv afforded than in valves of the ordinary globe type.

Now,'having described my invention, what I claim and desire to secure by Letters Patent is:

1. In a valve, avalve bo'dyhaving a seat saA and two bored portions each arranged within the body and spaced from the` walls of the body and disposed at a right angle to each other, a stem rotatable in each bored portion, each stem having a spiral gear, said gears meshing with each other, and valve member carried by one stem whereby upon operation of the other stem the valve member maybe moved toward and away from said seat. l Y Y y 2. Ina valve, a ybody having a seat,a valve for engagement with thel seat, a longitudi-, nally disposed valve steinhaving a low pitch j threaded connection with the 'valve body, a` spiral gear iixedon said stem-in fixed relationto the low pitch thread thereof, another stem j ournaled in the body against longituV dinal movement and disposed at -a right angle to and extending past the longitudinal' stem, and a spiral gear fixed on the second mentioned stem and meshing withthespiral gear `on the longitudinal stem and; mainl` tained in a fixed plane at a right anglemto the spiral gear on Vthe longitudinal steni, whereby, upon rotation of the secondvnien-i tioned stem,the longitudinal stem ,and the spiral gear carried therebyv are shiftedbackward andforward across the second nientioned stem-and the valve movedtowa-rd and away from the seat and held intheir different adjustments. i

3. In a valve, ajbody having a seat, a

v valve for engagement with the seat, a'longitudinally disposed valve stem havingalow pitch -thrcaded connectionvwith the valve body, a spiral gear on saidstern inefixed relation to the low pitch thread portion of e thestem, a transverse stem journaled in the tions.

valve body ata right angle to the longitudinal stem, a spiral gear on the transverse stein in mesh with the spiral gear of vthe longitudinal stein and which is maintainedv against movement laterally of the longitudinal axis of the vave stein and the spiralgear carried thereby, whereby upon rotation of the transverse stem the longitudinal stem and the spiral gear carried' thereby are moved forward and backward across the transverse stem andthe valve moved toward and away from said seat and held by the low pitch thread connection with the body in its adjusted positions. -4 i li. In a valve, a body having a seat, a disk adapted for engagement with said seat, a valve stem carryingsaid disk and mounted for rotatable and longitudinal movement to shift the disk toward and away from the seat, and means to rotate the same to shift the disk to open and closed positions and to cooperate with the mounting means vof the disk-carrying stem. to assist the latter in holding the disk in open and closed posi- 5. In a valve, a body having a seat, adisk adapted to engage the seat, a valve stem carrying said disk and provided with a threaded portion engaging a similarly threaded portion ofthe body, a driving stem journaled in the Abody, and means between the Y stems coacting with they screw thr^eaded connection between the valve stem and body to effect rotation of the valve stem,and a con- Ysequentinovement of the disk toward and Vrespcc tive'v stems, whereby rotation of the transverse driving stem-willactuate the disk carrying stemY andsh-iftJ-the I disk toward and aw-ayfrom said Vseat and coactwith the threaded connection between therdiskcarrying stem and the body -to hold-the disk in adjusted position against` accidental lmovenient.` i. re A.

y'i'. In awvalve, a body .provided-with a bearing whose internal bore is screw-thread-V edv throughout a portionof its length, a stem provided with a screwthreaded portion having working iit in the screw threaded portion ofthe bore of said bearing, a spiralrgear onsaid stein, a Adriving stem j ournaled in said bearing, and a spiralYr gearl immovably mounted `on thew'driving stemv constantly -inmeshwith thejspiral gear on the driven stem, so that ongrotative movementE of the driving stem the driven, stem is rotated! and moved longitudinally by its screw threaded connection .with saidbearlngt' Y A teinal seat' and an internalV castingprovidedwith communicating bores arranged at righteangles to each other,.one.of said bores being arranged in coaxial relation-to the longitudinal, axes of Vthe body and interiorly threaded throughout a l portion of kits length, a stem providedvwitli a `'spiral In a valve, a valve body having an in- Y other stem Ythrough the communication Ybe'- l f tween said bores, wherebysaidwother stem may be operated to move 'the` disk toward' and away from. said seat. j .Y

9. In a valve, a vvalve body having an internalseat andan internal castingprovided with communicating bores arranged at right angles to each other, one of said bores being arranged longitudinally of the body, a stem mounted in said longitudinally disposed bore and provided with a spiral gear arranged adjacent the communication between the bores, and a driving stem operating in the other bore and having a spiral gear interengaging with the spiral gear of said other stem through the communication between said bores, whereby the stern in the longitudinally arranged bore may be operated to move the disk toward and away from said seat.

lO. In a valve, a valve body having an internal seat and two internally bored communicating portions, a stem rotatable in each bore, each stein having a spiral gear meshing with the other through the oommunieation between said bores, a disk carried by one stem whereby upon operation of the other stem the disk may be moved toward and away from said seat.

11. In a valve, a body having a longitudinal opening, a stem extending longitudinally within the body and having a threaded portion engaging a similarly threaded portion of the body, a .disk on said stem, a transverse stem extending into the body at right angles to the longitudinal stem and past a part thereof other than the threaded portion, and spiral interengaging gears formed on said stems and located between the disk and the threaded portion of the valve stem, so as to operatively conneet them for rotative movement and permit the longitudinal movement of the threaded stem caused by its engagement with the threaded portion of the body.

12. In a valve, a body having a longitudinal opening, a seat at one end of the body, a longitudinal stem carrying the disk, the stem having a threaded portion engaging a similarly threaded portion of the body, a transverse stem, and interengaging spiral gears lixedly connected with said stems and located between the disk and the threaded connection of the valve carrying stem with the body, whereby rotation of the transverse stem will actuate the disk toward and away from the seat.

13. In a valve, a body having a seat, a valve stem having a low threaded connection with said body, a valve member carried by said stem, and means having connection with said stem and coacting with said low threaded connection between the stem and valve body to shift the same longitudinally to move said valve member toward and from said seat, said low threaded connection holding said stem in any position to which it is adjusted.

In testimony whereof I have hereunto subscribed my name in the presence of two D. O. BRNELL, A. R. MITCHELL.

Copies of this patent may be obtained for five cents eaoh,A by addressing lche Commissioner of Patents. Washington, D. C.

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