US80888A - Improvement in sheit-metebs - Google Patents

Description

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JOEL n. WEAVER, or TEoY, NEW-YORK, l AssIeNoE To HIMSELE, o.' A. sHEEwooD, AND' L. s. BUNNELL, or SAME PLAGE.

Letters Patent No. 80,888, dated August 1l, 1868.

IMPROVEMENT 1N ySPIRIT,-METERS.

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To ALL wnoM IT MAY o oNcERN;

Beit known that I, JOEL DrWEAvER, of Troy, in the county of Rensselaer, andState of New York, have invented a-new and useful Improvement in Spirit-Meters; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in theart to make and use the same, reference being had to the accompanying drawings, forming part ofthis specification, in which- Figure' 1 represents a plan view of my improved machine.

Figure 2 represents a longitudinal elevation, and

Figure 3 vrepresents a plan of the valve-seat, showing the ports and the valve.

Similar letters of reference indicate corresponding parts.

The nature of this invention relates to improvements` in that class of meters for measuring iuids which consist of a piston working within a cylinder.

It consists ciV an improved arrangement of mechanism for operating the valve; also in an improved Valve.

Hitherto this class of meters have been found to some extent objectionable, in consequence of the imperfeet operation of the valves, which it is the objectoi' my invention to overcome. 4

On reference to thedrawings, Arepresents a cylinder, provided with a piston, B, the rod C of which projects through stufng-boxes at both ends, andwhicli carries at each' 'end a curved arm, D,'securely connected thereto.

' E represents a slide-rod supported by the said arms in a vertical plane above the said piston-rod.

F represents guides rising upward from the top of the cylinder,` and provided with grooves, wherein the said slide E is reciprocated by thepiston-rod. I A

i G represents a tube which is. supported by brackets, H, projecting from the arm E, one at each end; a reciprocating movement is therefore communicated to the said tube by the slide E.

represents the valve-chest, which is of cylindrical form, and having a vertical axis. -In the bottom of the said valve-chest are the ports. a is the port communicating with the receiving-tube b, al and a2 the ports lead-v ing to the cylinder, and a3 the exhaust-port.

K represents a` circularrvalve, which is itted to work steamftight in the cylindrical valve-chest I, and arranged to oscillate in a horizontal plane. It is provided with a curved opening, e, throughit, in a vertical direction, and a recess, d, in its lower face, of thessame size and form of the opening, and on the opposite side to the same. The said valve is also providedv with a vertical stem, e, which is seated in a stepfat its lower end in the bottom of the valve-chest. The upper end, projecting through astuiiing-box in the cap of the chest, is connected to an arm, f, tlio outer end of which projects through a central opening'in the tube G. The hub of the said arm is provided with a vertical segmental spur or iiange,'g, having two radial grooves, gl andgz, through it. The portion-h of the flange, which separates the grooves, is not as highas the outer portions thereof, k1

and h2.

The slide-rod E is provided with two notches, d and cl', in its lower edge, and the tube G is provided with spiral springs K and K', one inv each end, arrangedto bear upon each side of the armfof the valve K.

When the valve is set Vin position, care is taken to arrange it so that when the slideba'r rests in the groove g2 of the iiangc g, the passage C will be coincident with -the'receiving-port a, and the port a2, leading into the cylinder. The iluid to bc measured being'now admitted through the pipe b, will ilow through the ports a and a2 into the cylinder, whereby the piston will be driven to the left, therchypressingthe spring K against the right side of the arm f. As the pistonarrives near the end of' its stroke in that direction, the notch d in the slide E will be brought to a position coincident with the spur h of the iiangefg, ,thereby relieving the' resistance .it has maintained against the action of the spring K', which will instantly throw the said arm around, bringing the groove g coincident with the slide-rod, and changing the `position-oi` the valve, so as to change the passage of' the iluid from port a to the port al, and opening thc port a? to the exhaust ai. The piston will now move to eases 2 the right, and the spring K will be compressed against the varmy", ready to change the valve beck again to the first-named position as soon as the notch d arrives at a point coincident with the stud' 71.. This operation will Y without regardto the amount of pressure.

'raised thereby in a very simple manner.

continue as long as the luid is fed to the machine. l

A registering-apparatus may bc actuated from the reciprocating parts of the machine, in any suitable manner. l y

As the action of the valve is sudden and positive, the utmost accuracy ofmeasurement may be attained In practice, a metal packing may be provided atthe upper end of the valve, that will, when laid upon the valve, be slightly higher than the walloi` the valve-chest I, upon which the cap ofthe chest may be accurately adjusted, the joint between the cap and the top of the chest being packed with a yielding packing. p f

In consequence of the passage C being made entirely through the valve,.the upward pressure which would be due to the area of the same, were it a recess, as is provided for the exhaust, is entirely removed from the valve and expended upon the packing above, and the downward pressure 'is expended against the valve-seat and the ports, whereby the Valve is always balanced, irrespective ofthe amount of pressure of the propelling medium.'

v My improved apparatus may also be used with great facility as a motor, and may be operated either hy Water 'or steam, and will be found especially usefulfor propelling pumps for raisingwaterror as -a ram.

A pump-cylinder may be'attached to one of the piston-heads, or may be cast with it, 4or, if a double-acting pump is desired, such cylinders may be attached to each piston-head, and the piston-rod be provided near eacfh end with plungers for the pumps, and with reduced prolongations projecting through stuiiing-boxes at the outo'r ends of the pumps, for communicating motion to the rodE, and a portion of the water for operating it may be Having thus'dcscribed my invention, I claim as new, and desire to secure by Letters Patent- 1. The improved valve-actuating mechanism, substantially such as herein shown and described for the purpose set forth. 4

2. The improved valve K, in combination with the valve-chest I, provided with ports, 'arranged substantially as and forth@ purpose described.

-3. The combination of the sliding rod E, valve-stem e, and-spring-aetuated armf, substantially as and for the purpose described. *l i 4. The combination, with the armf, of the tube G, provided with the springs K and K', and actuated by the slide E, substantially as and for the purpose described.

The above specification of my invention signed by me, this 23d day of April, 1868.

OEL D. WEAVER.

Witnesses: f

WM. F. MeNAMARA, ALEX. F. ROBERTS.

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