US1220823A - Controlling-valve. - Google Patents

Description

Patented Mar. 27, 1917.

2 SHEETS-SHEET l W. J. BURKE.

CONTROLLING VALVE.- APPLICATION FILED Novjao. 1914. LMS.,

mlm

WITNESSES v me muws arms co.. wom-uma. wAsnmnmNl n. c.

w. 1. BURKE.

Patented Mar. 27, 1917.

2 SHEETS-SHEET 2.

g 35 "i 5J' 52 35 E 20d j@ INVENTOR W E. @WLS i MW @HQE m: :umm: "uns co.. mmm-urna. wAsmNc um, a. c

lldiehflllllihi@ tlldldltlm WILLIAM J. BURKE, 0F PTTSBURGH, FENNSYLVANIA, SSIGNGR T0 ELLICTT CGM- PANY, OF PITTSBURGH, PENNSYLVANA, CORPURATIGN OF PENNSYLVANIA.

conrnoLLrne-venvn.

Specification of Letters Eatent.

Patentes irai. ev, miv.

Application led November 30, 1914. Serial No. 874,590.

To all whom t may concern.

Be it lrnown that l, WILLIAM J. BURKE, a citizen of the United Stat-es, residing at Pittsburgh, Allegheny county, Pennsylvania, have invented a new and useful Improvement in Controlling-Valves, of which the following is a full, clear., and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a vertical section of one form of valve embodying my invention.

l Fig. 2 is an end elevation of the same, and

Fig. 3 is a sectional view, on a larger scale, of a portion of the device.

My invention has relation to controlling valves; and is designed to provide a simple and cicient valve of this character which can be used for a variety of purposes for automatically controlling the flow of fluid. ln the accompanying drawings l have illustrated my invention as embodied in a pump governor, but do not limit myself to such embodiment.

The nature of my invention will be best understood by reference to the accompanying drawings, which will now be described, it being premised, however, that various changes can be made in the details of construction and arrangement of the several parts without departing from the spirit and scope of my invention as defined in the appended claims.

ln these drawings the numeral 2 designates a valve casing or fitting having therein a valve 3 which is adapted to control the port 4, which in turn controls the How through said casing or fitting. The valve has a guide at 5 and is shown as having the balancing portions 6 and 7, the balancing portion 6 being located in a chamber 8 which communicates at 9 with the flow passage through the fitting. 10 is 'the stem of the valve which extends upwardly through a stuffing boX 11 and has attached thereto a cross bar 12 whose ends project out through the open or partially open sides of a frame member 13. This frame member is shownI as supported on the fitting 2 and as having guides 14: for said cross bar.

15 designates a barrel or cylinder which is secured at its lower end in the frame member 13, and which has at its upper end a cap or head 16 secured therein. This cap or head 16 has a connection 17 leading to the part to be controlled (in the present case to the discharge side of a pump). 18 is a tube of rubber or other elastic material which is placed within the cylinder or barrel 15 with its upper end engaging a socket 19 in the head or cap 16, and its lower end seating within a piston member 20, which in turn is seated on the upper end of the valve stem 10. This tube is open at both ends, its upper end communicating with the pipe 17 through the port 20a. 21 designates a series of ring or sleeve members which are seated within the barrel 15 and between said barrel and the tube 18. Each of these members is formed with a reduced portion 22 which lits telescopically within a socket portion 23 of the adjacentmember. rllhe socket portion 23 of the upper member 21 telescopically engages a depending flange 211 of the head 16; and the reduced extension 22 ofthe lower member 21 telescopically engages the socket portion 25 of the piston member 20. Each of the members 21 is shown as having an annular recess 26 in its inner face; and the telescoping portions of the members are shown as having beveled surfaces forming the recesses 27. 28 designate vent openings through the piston member 20, and 29Ais a similar vent opening through the head 16.

30 designate tension springs which are connected at their lower ends to the projecting ends of the cross bar 12 before referred to, and at their upper ends to a cross bar 31 which rests in supports 32 on the head 16. 33 is an adjusting screw engaging the cross bar31 and bearing against the head 16, and which provides means for adjusting the tension of the springs.

The operation is as follows: The springs 30 act upon the valve through the cross bar 12 and stem 10 in a direction to unseat the This results in a longitudinal expansion or Y valve.

with the annular recesses 26 in the telescop- K, ing members 21 and also into engagement with the recesses 27 between adjacent members 21. Therefore, as the pressure within the tube acts to force the piston member 20 downwardly, the movement of said member will be transmitted through the elastic tube to the entire series of telescoping members.

.stretching of the tube, and also a telescoping movement of the entire series of members 21, in the manner indicated in Fig. 3, thisV telescoping movement being more or less equally distributed throughout the series. Y

YThe advantages of my improved controlling valve will be apparent to those skilled y in the art, since it provides a very sensitive control greatly superior tov that of the usual diaphragm arrangements. It will be readily seen that .the length of the barrel 15 and of the elastic tube can be increased as may be desired to provide for a greater range of movement, and to an extent not Ypossible with the usual `diaphragm arrangements. The entire construction is a simple and compact one, and the arrangement of the telescopingA members insures a distribution of action throughout the entire series and "throughout the length of-the elastic tube.

lIn the construction illustrated, the head 16 is shown as having another opening, closed by a plug- 311, opposite the connection 17. This, however, is not essential, but is provided in order that connection Vmay be made with the device from either side, as may be most convenientin any particular case.

It will be understood that the form of the telescoping members may be considerably changed, that means other than those specically shown may be provided to insure a gripping engagement between said members and the elastic tube, and that various other changes may be made within the scope of the claims. V

f VI claim: Y

1. A controlling device of the. character described, comprising a valve, a hollow eX-Y I pansible member arranged to act upon the valve, means for admitting pressure to the interior'of said member, and a series of tele-Vk scoping members -seated around said elastic i A member, said telescoping lmembers Vbeing have a gripping engagement with the same, substantially as described.

2. In a controlling device of the character described, the combination with a valve and spring means tending to move said valve in one direction, of a hollow elastic member arranged to act upon the valve in the opposite direction, a series of telescoping members seated around the said elastic member, said telescoping members being free to move longitudinally one upon another and arranged tov have a gripping engagement therewith, and means for admitting pressure to the interior of the elastic member, substantially as described.

3. In a controlling device of the character described, the combination with a valve, of a piston member arranged to move the valve in one direction1 an elastic tube seated against said piston member, means for admitting pressure to the interior of the tube, and a series of telescoping members seated around the tube and having portions adapted to grip the same, said telescoping members being free to move longitudinally one upon another, substantially as described.

4c.v In a controlling device of the character described, the combination with a valve, of a piston member arranged to move the valve in one direction, an elastic tube seated n against said piston member, means for admitting pressure to the interior of the tube, and a series of telescoping members seated around the tube and having portions adapted to grip the same, one of the telescoping members having a telescoping engagement with the piston member, said telescoping members being free to move longitudinally one upon another, substantially as described.

5. In a controlling device of the character described, the combination with a valve, a Vpiston member operatively connected to the valve, an elastic tube engaging the piston member, means for admitting pressure to the interior of the tube, and a series of telescoping members surrounding said tube, said telescoping members having recessed inner faces, substantially as described.

6. In a controlling device of the character described, the combination with a valve having a projecting stem, of a piston member seating against one end of the stem, an elastic tube engaging the piston member, means for admitting pressure to the interior of said tube, a casing member surrounding the tube, and a series of telescoping members interposed between the tube and the casing member, said telescoping members being free to move longitudinally with respect to each other, substantially as described.

7. A controlling device of the character described, comprising a valve, and a projecting stem, spring means tending to move the valve in one direction, a piston member bearing against the valve stem, an elastic tube engaging the piston member at one end and having a Xed abutment at its opposite end, and a series of teleseoping members surrounding said tube and arranged to have a gripping engagement With the same, said my hand.

WILLIAM J. BURKE. Witnesses:

IDA L. SHERRER,

J. W. SHERRER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

Images