US950636A - Water-meter piston. - Google Patents

Water-meter piston. Download PDF

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Publication number
US950636A
US950636A US44979208A US1908449792A US950636A US 950636 A US950636 A US 950636A US 44979208 A US44979208 A US 44979208A US 1908449792 A US1908449792 A US 1908449792A US 950636 A US950636 A US 950636A
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United States
Prior art keywords
piston
plate
water
disk
meter
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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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US44979208A
Inventor
John C Kelley
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NATIONAL METER Co
NAT METER Co
Original Assignee
NAT METER Co
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Publication date
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Priority to US44979208A priority Critical patent/US950636A/en
Application granted granted Critical
Publication of US950636A publication Critical patent/US950636A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
    • G01F3/02—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement
    • G01F3/04—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having rigid movable walls
    • G01F3/06—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having rigid movable walls comprising members rotating in a fluid-tight or substantially fluid-tight manner in a housing
    • G01F3/12—Meters with nutating members, e.g. discs

Definitions

  • FIG. 1 is a top view of the piston showing the strengthening plate in outline
  • Fig. 2 is a central vertical section on the plane of the line 2-2 of Fig. 1
  • Fig. 3 is a top or face view of the strengthening plate
  • Fig. 1 is a central vertical section through the plane of the line 4l4 of Fig. 3.
  • the piston 1 is in the form of a disk or cone having a central spherical bearing hub 2 which fits in the corresponding recess of the case and makes a joint with the spherical surface thereof, while the sides of the piston will be in contact with the conical ends of the chamber.
  • the piston has a radial slot 3 formed so as to fit freely over an abutment, as is well understood, to permit the water to flow from one side of the piston to the other in its operation.
  • the hub 2 has a central bore 4 to receive the spindle of the reg istering mechanism.
  • the piston To increase the sensitiveness in the movement of the piston it is preferably formed of hard rubber, which has nearly the same speeifie gravity as water, and, to reduce to a minimum the liability of distortion, is formed with a strengthening plate t in the following manner: Between halves of the piston, made of soft rubber, is laid a plate 5 of sheet metal, preferably steel, which may be shaped in a suitable die. The whole is then pressed and vulcanized.
  • the form of plate preferred by me is conical to conform to the shape of the piston and is strengthened by ribs or corrugations in any convenient manner.
  • the plate has a series of radial ribs 6 extending from about the center to the periphery, the latter being turned over to form a bead 7.
  • the plate may be formed with one or more intermediate corrugations 8 concentric with the central opening and intersecting the radial corrugations, said corrugations 8 being preferably arranged adjacent the point at which the body of the disk connects with the ball or hub 2. These corrugations increase the strength of the plate without increasing its weight.
  • the plate 5 is provided with a central opening 8 of greater diameter than the bore 4, and is of less radial extent than the disk of the piston, so as to be completely em bedded in the piston. To permit of a proper union between the halves of the piston in the process of its manufacture, the plate 5 is provided with a series of perforations or openings 9 which may be conveniently located between the ribs or corrugations (5, as clearly shown in the drawings.
  • a water meter piston comprising a rubber disk and a metallic stiffening plate embedded in the body of the disk and having a central opening, said plate being formed with a peripheral stiffening bead, and a concentric bead adjacent the opening, beads connecting the inner and outer beads and dividing the body of the plate into a plurality of sections, each of said sections being perforated to permit the union of the rubber composing the two sides of the disk.
  • a water meter piston comprising a rubber disk and hub, and a metallic stiffenin plate embedded in the body of the disk, and
  • each of said segmental portions being perforated to permit the union of the rubber of the opposing two sides of the disk.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Description

J. G. KELLEY.
WATER METER PISTON.
APPLICATION FILED we. 22. 190B.
Patented Mar.1,1910.
gmmvm ran p Ad ATTORNEYS I WITNESSES Anunsw u GRAHAM co.. wuofo-umoampnim WASMNQION, D c
UNITE stares PATENT onnron.
JOHN C. KELLEY, OF NEW YORK, N. Y., ASSIGNOR TO NATIONAL METER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.
WATER-METER PISTON.
asonse.
Specification of Letters Patent.
Patented Mar. 1, 1910.
Application filed August 22, 1908. Serial No. 449,792.
To all whom it may concern:
Be it known that I, JOHN C. KELLEY, a citizen of the United States, and a resident of New York city, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvcz ment in ater-Meter Pistons, of which the following is a specification.
My invention relates to water meters and more particularly to the construction of the piston as hereinafter described. It will be understood by reference to the accompanying drawings, in which- Figure 1 is a top view of the piston showing the strengthening plate in outline; Fig. 2 is a central vertical section on the plane of the line 2-2 of Fig. 1; Fig. 3 is a top or face view of the strengthening plate; and Fig. 1 is a central vertical section through the plane of the line 4l4 of Fig. 3.
Similar reference numerals indicate similar )arts in the several views.
The piston 1 is in the form of a disk or cone having a central spherical bearing hub 2 which fits in the corresponding recess of the case and makes a joint with the spherical surface thereof, while the sides of the piston will be in contact with the conical ends of the chamber. The piston has a radial slot 3 formed so as to fit freely over an abutment, as is well understood, to permit the water to flow from one side of the piston to the other in its operation. The hub 2 has a central bore 4 to receive the spindle of the reg istering mechanism.
To increase the sensitiveness in the movement of the piston it is preferably formed of hard rubber, which has nearly the same speeifie gravity as water, and, to reduce to a minimum the liability of distortion, is formed with a strengthening plate t in the following manner: Between halves of the piston, made of soft rubber, is laid a plate 5 of sheet metal, preferably steel, which may be shaped in a suitable die. The whole is then pressed and vulcanized.
The form of plate preferred by me is conical to conform to the shape of the piston and is strengthened by ribs or corrugations in any convenient manner. In the manner shown the plate has a series of radial ribs 6 extending from about the center to the periphery, the latter being turned over to form a bead 7. In addition to the bead or corrugation 7 the plate may be formed with one or more intermediate corrugations 8 concentric with the central opening and intersecting the radial corrugations, said corrugations 8 being preferably arranged adjacent the point at which the body of the disk connects with the ball or hub 2. These corrugations increase the strength of the plate without increasing its weight.
The plate 5 is provided with a central opening 8 of greater diameter than the bore 4, and is of less radial extent than the disk of the piston, so as to be completely em bedded in the piston. To permit of a proper union between the halves of the piston in the process of its manufacture, the plate 5 is provided with a series of perforations or openings 9 which may be conveniently located between the ribs or corrugations (5, as clearly shown in the drawings.
I do not wish to be limited to the character or number of corrugations shown in the drawings. Obviously they may be varied in character without departing from the spirit of my invention.
lVhat I claim and desire to secure by Letters Patent is 1. A water meter piston, comprising a rubber disk and a metallic stiffening plate embedded in the body of the disk and having a central opening, said plate being formed with a peripheral stiffening bead, and a concentric bead adjacent the opening, beads connecting the inner and outer beads and dividing the body of the plate into a plurality of sections, each of said sections being perforated to permit the union of the rubber composing the two sides of the disk.
2. A water meter piston, comprising a rubber disk and hub, and a metallic stiffenin plate embedded in the body of the disk, and
having a central opening, said plate being.
juncture of the disk with the hub, radially disposed beads connecting the inner and outer beads, and dividing the body of the plate into a plurality of segmental portions,
each of said segmental portions being perforated to permit the union of the rubber of the opposing two sides of the disk.
US44979208A 1908-08-22 1908-08-22 Water-meter piston. Expired - Lifetime US950636A (en)

Priority Applications (1)

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US44979208A US950636A (en) 1908-08-22 1908-08-22 Water-meter piston.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44979208A US950636A (en) 1908-08-22 1908-08-22 Water-meter piston.

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US950636A true US950636A (en) 1910-03-01

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