US487907A - Gas-meter - Google Patents

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US487907A
US487907A US487907DA US487907A US 487907 A US487907 A US 487907A US 487907D A US487907D A US 487907DA US 487907 A US487907 A US 487907A
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valve
meter
ports
shell
diaphragm
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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
    • G01F3/20—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 flexible movable walls, e.g. diaphragms, bellows
    • G01F3/22—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 flexible movable walls, e.g. diaphragms, bellows for gases
    • G01F3/225—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 flexible movable walls, e.g. diaphragms, bellows for gases characterised by constructional features of membranes or by means for improving proper functioning of membranes

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  • FIG. 1 designatesthe shell, in the present instance shown as composed of a frame 2, formed with three circular openings 3, closed by removable lids or caps 4, held in place by an encirclingband 5, having a tensional adjustment by means of a bolt and nut 6 and 7, passed through the projecting ends of the band.
  • Each opening is formed with a flange 8, upon which the outer edge of a flexible diaphragm 9 rests,
  • diaphragm which diaphragm is clamped firmly in place by a coincident flange or face 10 upon the cap 4, the edge of the diaphragm acting as a gasket between the surfaces of flanges 8 and 9, the space between the diaphragm and lid constituting a diaphragm-chamber. 11, as shown in 7 5 Fig. 2, is a depression for the reception of a registering device 12, Figs. 1 and 2.
  • the lower side of the shell has a circular opening 13, closed by the base, hereinafter referred to.
  • crank-shaft 16 is a bridge or yoke across the lower part of the interior of the shell, and serves as a support for the lower end of crank-shaft 18,
  • crankshaft 18 is disposed axially of the shell and is journaled at its upper end in the bearing 21 and is adapted to be connected with the gearing of any suitable registering device.
  • I employ three diaphragms 9, each of which is connected with a crank 24 of crank-shaft 18 by means of a light con- 9 5 necting-rod 25, secured to the diaphragm by means of a hook and eyebolt 26, engaging metal washers or plates 27, the opposite end of the rod being connected with the crank by means of hooks and eyes or other suitable Ioc means.
  • Shell 1 rests upon and is secured to base 29 by bolts 30. (See Figs. 1 and 2.)
  • Base 29 is formed with an inlet 31, leading from the supply-pipe into the interior of the shell, serving as the induction-port of the meter, there being an opening 32, leading from the center of the interior of the shell through the base, which serves as an eduction-port of the meter. Both ports are screw-threaded to receive connecting-pipes.
  • valve 33 designates ports in the valve-seat communicating with openings 14, formed in the shell. Ports 33 when uncovered permit the passage of fluid to and from chambers 15 through conduits 33 34 1 1. (See Fig. 2.)
  • valve 35 is a horizontal flat valve-seat projecting slightly above the remainder of the base, and in this valve-seat are formed ports 33 and eduction-port 32. Sliding upon this valveseat is valve 19, which resembles in shape an inverted cup, the lower edge of the cup forming a flat annular face 36, (see Fig. 6,) designed when actuated by crank 17 on the lower end of crank-shaft 18 to rotate in a horizontal plane and to successively and progressively open and close ports 33 in the valveseat.
  • the cup or chamber 37 of valve 19 is of sufficient diameter to establish at alltimes communication between one of the ports 33 and the central opening 32 as the valve moves in its circular path round central port 32.
  • the outer edge of the face of the valve projects slightly beyond the outer edge of the elevated valve-seat 35, and the valve being journaled loosely on the end of the crankshaft is free to turn on its own axis as it travels bodily around the axis of the valveseat.
  • This double motion of the valve insures the uniform wear of the faces in contact, and prevents the accumulation of grit or dirt, which is constantly pushed outward and falls over the edge of the raised valve-seat.
  • the operation of my device is as follows: The fluid is admitted to the meter through opening 31 and passes into the central triangular space formed by the diaphragms and the top and bottom of the meter. The position of the valve at all times is such that the central space is always open to one or more of chambers 15 through one of the ports 33, or substantially its equivalent in area, and
  • one of the ports or its equivalent in area is always open to the discharge opening 32 through concavity 37 in valve 19. (See Figs. 3 and 4.) It will be seen by reference to Fig. 3 that chamber 15 is receiving, 15 is discharging, and 15 is filled.
  • the movement of the valve is effected in the following manner:
  • the central space being filled with the fluid at its initial pressure and the position of the valve such that one of the chambers 15 is discharging, the return of the diaphragm to the inner surface of the shell, caused by the pressure exerted thereon by the fluid in the central space, causes the diaphragm to pull upon the crank through its connecting-rod 25, thereby revolving shaft 18, causing the lower crank 17 to move the valve in a circular path and to change the relation of the valve and port openings, so that the next diaphragm 15 with its connecting-rod is operated upon in the same manner, and so on, in succession, until the crank-shaft and valve have described a complete revolution, one of the diaphragmchambers being constantly full, or nearly so, one emptying, and the other filling.
  • the successive progressive filling and emptying of the diaphragm-chambers imparts a regular rotary movement to the shaft, the revolutions, each of which corresponds with the definite aggregate capacity of the three chambers, being indicated by the registering device.
  • the constant direction of the force applied to the diaphragms is from within and outward, and that the valve and registering mechanisms are actuated by the successive progressive pulls of the connect ing-rods 25, thus avoiding the click and noise of reciprocating parts.
  • the ports are opened and closed with a progressive shearing movement of the valve, which may result in the partial opening of one port and the partial closing of another, but at all times maintaining a uniform portopening through the meter, thereby guarding against pulsation in the discharge of fluid.
  • I may vary the form of the inclosing shell, I prefer the spherical form shown, it being not only compact and neat in appearance, but having a greater strength than any other form.
  • a meter having a shell composed of a frame provided with equidistant openings having detachable lids, substantially as shown and described, for the purpose specified.
  • a meter having a shell spherical in general outline, comprising in its construction a frame 2, having openings closed by lids, (spherical segments 4,) said lids being held in place by means of encircling band 5, substantially as shown and described, for the purpose specified.
  • a meter having a shell spherical-in general outline, composed of a frame provided with equidistant openings having detachable lids, in combination with flexible diaphragms clamped between the margins of said openings and said lids, substantially as shown and described, for the purpose specified.
  • a meter having a shell spherical in general outline, composed of a frame provided with equidistant openings having detachable lids, in combination with flexible diaphragms clamped between the margins of said openings and said lids, the spaces between the diaphragms and lids forming measuring-chambers and the margin of the diaphragms serving as gaskets for the joints formed by the juncture of thelids and frames, substantially as shown and described, for the purpose specified.
  • a valve provided with an annular face and a central concavity and moving by the means described in a circular path, in combination with a valve-seat having a central opening, and a series of ports of substantially the contour described, adapted by means of their relation to the path of the Valve, said central opening, the annular valve-face, and the concavity of the valve to maintain a portopening through a meter of constant and unvarying area, all substantially as shown and described,for the purpose specified.
  • a gas-meter comprising in its construction a shell spherical in general outline, provided with equidistant openings having detachable lids, a series of flexible diaphragms arranged at intervals upon the interior of the shell, forming diaphragm or measuring chambers between the shell and diaphragms, a crank-shaft connected with said diaphragms, a registering mechanism connected with said crank-shaft, a valve connected with and actuated by said shaft, an inlet to said shell, an outlet therefrom, a series of conduits connecting said measuring-chambers with the central chamber of said shell, said outlet and said conduits being controlled by said valve, substantially as and for the purpose specified.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Description

' 2 Sheets-Sheet 1 H; A. TOBEY.
GAS METER.
model.)
Patented Dec. 13, 1892'. I
(ModeL) 2 Sheets-Sheet 2."
H. A. TOBEY.
GAS METER.
No. 487,907. Patented Dec 13, 1892.
1w: uoams in no. PrjOTOLflfNO. WASHINGTON, b. c.
UNITED STATES PATENT OFFI E.
HENRY A. TOBEY, on TOLEDO, OHlO.
GAS -METER.
SPECIFICATION forming part of Letters Patent No. 487,907, dated December 13, 1892.
Application filed December 15, 1890- Serial No, 374,846- (ModeL) To all whom it may concern:
Be it known that I, HENRY A. TOBEY, a citizen of the United States, residing at Toledo,
first, to provide such meter with ports of pe-- culiar form and arrangement and with a rotary slide-valve actuated by the pressure of the liquid to be measured, so that the induction and eduction ports shall present substantially a uniform and unvarying area of opening, thereby preventing pulsation; second, to
provide such-meter with a central crank-shaft actuated by the movement of a plurality of diaphragms and adapted to give motion to the rotary slide-valve, above referred to, and to the registering mechanism of the meter; third, to provide such meter with a valve and valveseat in which the perfect contact of the surfaces shall be preserved by the uniform wear of the parts.
The invention consists in the parts and combination and arrangement of parts hereinafter described, and pointed out in the claims.
In the drawings made part hereof like fig- V ures represent like parts throughout the sevshowing the valve in the position of having made a half-circle of the ports, showing the port discharging in Fig. 3 as receiving and the one receiving, same figure, as discharging; Fig. 5, a plan view of the base and valve-seat,
ered by lids forming segments of the sphere. 6o
1 designatesthe shell, in the present instance shown as composed of a frame 2, formed with three circular openings 3, closed by removable lids or caps 4, held in place by an encirclingband 5, having a tensional adjustment by means of a bolt and nut 6 and 7, passed through the projecting ends of the band. Each opening is formed with a flange 8, upon which the outer edge of a flexible diaphragm 9 rests,
which diaphragm is clamped firmly in place by a coincident flange or face 10 upon the cap 4, the edge of the diaphragm acting as a gasket between the surfaces of flanges 8 and 9, the space between the diaphragm and lid constituting a diaphragm-chamber. 11, as shown in 7 5 Fig. 2, is a depression for the reception of a registering device 12, Figs. 1 and 2. The lower side of the shell has a circular opening 13, closed by the base, hereinafter referred to.
14 designates passages formed in the shell in communioationwith the central chamber of the meter and the diaphragm-chambers 15.
16 is a bridge or yoke across the lower part of the interior of the shell, and serves as a support for the lower end of crank-shaft 18,
which passes through and is journaled in a central opening in the bridge or yoke. Crankshaft 18 is disposed axially of the shell and is journaled at its upper end in the bearing 21 and is adapted to be connected with the gearing of any suitable registering device.
In the construction chosen for illustration of my invention I employ three diaphragms 9, each of which is connected with a crank 24 of crank-shaft 18 by means of a light con- 9 5 necting-rod 25, secured to the diaphragm by means of a hook and eyebolt 26, engaging metal washers or plates 27, the opposite end of the rod being connected with the crank by means of hooks and eyes or other suitable Ioc means.
Shell 1 rests upon and is secured to base 29 by bolts 30. (See Figs. 1 and 2.) Base 29 is formed with an inlet 31, leading from the supply-pipe into the interior of the shell, serving as the induction-port of the meter, there being an opening 32, leading from the center of the interior of the shell through the base, which serves as an eduction-port of the meter. Both ports are screw-threaded to receive connecting-pipes.
33 designates ports in the valve-seat communicating with openings 14, formed in the shell. Ports 33 when uncovered permit the passage of fluid to and from chambers 15 through conduits 33 34 1 1. (See Fig. 2.)
35 is a horizontal flat valve-seat projecting slightly above the remainder of the base, and in this valve-seat are formed ports 33 and eduction-port 32. Sliding upon this valveseat is valve 19, which resembles in shape an inverted cup, the lower edge of the cup forming a flat annular face 36, (see Fig. 6,) designed when actuated by crank 17 on the lower end of crank-shaft 18 to rotate in a horizontal plane and to successively and progressively open and close ports 33 in the valveseat. The cup or chamber 37 of valve 19 is of sufficient diameter to establish at alltimes communication between one of the ports 33 and the central opening 32 as the valve moves in its circular path round central port 32. The outer edge of the face of the valve projects slightly beyond the outer edge of the elevated valve-seat 35, and the valve being journaled loosely on the end of the crankshaft is free to turn on its own axis as it travels bodily around the axis of the valveseat. This double motion of the valve insures the uniform wear of the faces in contact, and prevents the accumulation of grit or dirt, which is constantly pushed outward and falls over the edge of the raised valve-seat.
In order to secure the greatest area of portopening for ports 33, I adopt the form shown in the drawings. It will be observed that the lines of the outer edges of these ports are segments of a circle of the same circumference as the outer edge of valve 19, and that the two lines of the inner sides of these ports which intersect the outer lines are segments of a circle of the same circumference as the inner edge of the valve. These ports, in this instance three in number, are placed equidistant in the circular path of the valve and are arranged in such relation to the face of the valve that when the face of the valve covers either of the ports,preparatoryto opening that port either to discharge or receive, the outer and inner edges of the valve-face coincide substantially with an outer and an inner edge of that port, as the case may be.
The operation of my device is as follows: The fluid is admitted to the meter through opening 31 and passes into the central triangular space formed by the diaphragms and the top and bottom of the meter. The position of the valve at all times is such that the central space is always open to one or more of chambers 15 through one of the ports 33, or substantially its equivalent in area, and
one of the ports or its equivalent in area is always open to the discharge opening 32 through concavity 37 in valve 19. (See Figs. 3 and 4.) It will be seen by reference to Fig. 3 that chamber 15 is receiving, 15 is discharging, and 15 is filled. The movement of the valve is effected in the following manner: The central space being filled with the fluid at its initial pressure and the position of the valve such that one of the chambers 15 is discharging, the return of the diaphragm to the inner surface of the shell, caused by the pressure exerted thereon by the fluid in the central space, causes the diaphragm to pull upon the crank through its connecting-rod 25, thereby revolving shaft 18, causing the lower crank 17 to move the valve in a circular path and to change the relation of the valve and port openings, so that the next diaphragm 15 with its connecting-rod is operated upon in the same manner, and so on, in succession, until the crank-shaft and valve have described a complete revolution, one of the diaphragmchambers being constantly full, or nearly so, one emptying, and the other filling. Thus the successive progressive filling and emptying of the diaphragm-chambers imparts a regular rotary movement to the shaft, the revolutions, each of which corresponds with the definite aggregate capacity of the three chambers, being indicated by the registering device. It will be seen that the constant direction of the force applied to the diaphragms is from within and outward, and that the valve and registering mechanisms are actuated by the successive progressive pulls of the connect ing-rods 25, thus avoiding the click and noise of reciprocating parts. It will also be seen that the ports are opened and closed with a progressive shearing movement of the valve, which may result in the partial opening of one port and the partial closing of another, but at all times maintaining a uniform portopening through the meter, thereby guarding against pulsation in the discharge of fluid.
While I may vary the form of the inclosing shell, I prefer the spherical form shown, it being not only compact and neat in appearance, but having a greater strength than any other form.
I do not limit my invention to a meter having three diaphragms, as obviously the diaphragm-chambers, connecting-conduits, and ports may be increased, if desired, as any number of ports in the circle of the travel of the valve will operate on the same principle as above indicated. Neither do I limit myself to the exact form of valve here shown, as other valves may be employed, singly or in series, without departing from my invention.
What I claim as myinvention, and desire to secure by Letters Patent, is
1. A meter spherical in general outline and having removable caps adapted to form measuring-chambers, in conjunction with the diaphragms, substantially as and for the purpose specified.
IIO
2. A meter having a shell composed of a frame provided with equidistant openings having detachable lids, substantially as shown and described, for the purpose specified.
3. A meter having a shell spherical in general outline, comprising in its construction a frame 2, having openings closed by lids, (spherical segments 4,) said lids being held in place by means of encircling band 5, substantially as shown and described, for the purpose specified.
4. A meter having a shell spherical-in general outline, composed of a frame provided with equidistant openings having detachable lids, in combination with flexible diaphragms clamped between the margins of said openings and said lids, substantially as shown and described, for the purpose specified. 1
5. A meter having a shell spherical in general outline, composed of a frame provided with equidistant openings having detachable lids, in combination with flexible diaphragms clamped between the margins of said openings and said lids, the spaces between the diaphragms and lids forming measuring-chambers and the margin of the diaphragms serving as gaskets for the joints formed by the juncture of thelids and frames, substantially as shown and described, for the purpose specified.
6. A series of ports in a valve-seat arranged equidistant in the path of a valve adapted to move in a circle, the marginal lines of said ports being segments of the inner and outer circles of the annular face of said valve, substantially as shown and described, for the purpose specified.
7. A valve provided with an annular face and a central concavity and moving by the means described in a circular path, in combination with a valve-seat having a central opening, and a series of ports of substantially the contour described, adapted by means of their relation to the path of the Valve, said central opening, the annular valve-face, and the concavity of the valve to maintain a portopening through a meter of constant and unvarying area, all substantially as shown and described,for the purpose specified.
8. A gas-meter comprising in its construction a shell spherical in general outline, provided with equidistant openings having detachable lids, a series of flexible diaphragms arranged at intervals upon the interior of the shell, forming diaphragm or measuring chambers between the shell and diaphragms, a crank-shaft connected with said diaphragms, a registering mechanism connected with said crank-shaft, a valve connected with and actuated by said shaft, an inlet to said shell, an outlet therefrom, a series of conduits connecting said measuring-chambers with the central chamber of said shell, said outlet and said conduits being controlled by said valve, substantially as and for the purpose specified.
HENRY A. TOBEY.
Witnesses:
ISAAC N. HUNTSBERGER, J. M. LONGNEOKER.
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