US937198A - Measuring-pump. - Google Patents

Description

WITNESSES: "fan/# 141 W H. J. WIUHM'AN.

MEASURING PUMP.

APPLICATION FILED MAE.1,1909.

Patented Oct. 19,1909.

' 2 SHEETS-SHEET 1.

11v VENTOR.

Henry J- M'chman H. J. WIGHMAN.

.MBASURING PUMP.

uruonmn mum mu. 1, 1 909. 1 98, Patented Oct. 19, 1909. z sums-Burr z.

WITNESSES;

HENRY .i'wrontran, or" sea LOUIS, mrssounr.

, Manson:

937,198. Specification 'or' NG-PUM'P. 7

team went. Patented 0013.. 19.," 1909.

Application meanama 1, 1909. serial 1%. 480,616.

To all whom it may concern:

Be it known. that I, HENRY citizen of the United States, residing at St. Louis, State of Missouri, have'invented certain new and useful Improvements in Measuring-Pumps, of which the, following is a full clear, and exact description, reference I I being had to the accompanying drawings,

forming a part hereof.

My mventlon has relation to lmproyements in measuring-pumps; and it consists in the novel details of construction morefully set forth in'the specification and point A: is a vertical section-on line however,

ed out in the claims.

In the drawings, Figure 1 is a combined side elenation and vertical section of the pumponashe line 19-1 of Fig. 8; Fig. 2 isa vertical'sectional detail on line 22 of Fig.

' 1 taken through the hollow rack bar; Fig. 3

is a cross-section on line 33 of Fig. 1; Fig. 4 of Fi 3 with the arresting stem of the indicator isk shoved-inward and turned ninety 4 Fig. 6 isan enlarged side View of the ta pet-head or lug formed on the bracket w 1011 supports the oscillating rack' segme'nts; Fig. 7 is a face view of Fig. 6; Fig.

the pump; Fig.

cylinder on the line 99 of 10 is a face-view broken. I I v The object of my invention is to construct a pump primarily adapted for dis ensing oil, kerosene, gasolene and the like though applicable to pumping allkinds of liquids) in which the stroke of the piston shall be regulated according to the volume or quantity of ii uid to be dispensed, such stroke Fig. 8; and Fig. of the rack-bar,- shown correspon ing to standardiliquid units such as pints, quarts, half gallons and the like though easily modified for liters and fractions thereof.

The purpose is to construct a pump which while not new inprinciple, shall possess details which renderthe device susceptible of ready and quickadjustment'; one which may be locked against the danger of being tampered with by unauthorized persons, and one possessing further and other advantages better apparent from a detailed thereof which is as follows Referring to the drawings, B, represents a suitable base to which is bolted or tied the pump-cylinder C in the usual way, thecyldesc ri ption J. "1011 run,

f inder being provided with a discharge pipe 1] leading from the upper wall thereof, said pipe terminating in a discharge spout 'n of well'known construction, the passage thereof 5 being controlled by a. spring-actuated valve n which is unseated by the pressure of the liquid as it discharges, and autoi'natically closes or. seats under the action of the spring ,9 when the discharge discontinues. The hollow base 13 has suitable provision for screwing thereto a pipe 72, leading down to the source of .liquid suppl anintake checkvalvea being positione above the point of attachment t for the inlet pipe. The piston l of the pump-cylinder has a check-valve 2, the piston-rod 3 passingthrough a stuffinghox 4 in the top of the cylinder and connecting outside of the cylinder with a rack-bar The rack-bar is formed in cross-section as shown in Fig. 3, being substantially an open'bar with diverging walls 5', 5, having housing or chamber 6 between them. Disposed along the closed wall or face of the rackbar are a series of indicator disks or buttons 7, having marks, 1 pt, 1 qt, 11}- q'ts, 9; gal. to indicate the quantity'of liquid to be dispensed or quantity drawn into the pump cylinderjfor a given length of piston stroke.

a stem 8 loosely mounted in the rackbar, the stem operating in a hollow plugor bearing 9 which receives the stem, the plug being'ad justablevertically along an elongated slot or opening a formed in the rack-bar, and when once adjusted is tightly clamped to the bar having a shoulder 11:. for engaging the inner face of the rack-barr when the parts are tightened. recessed or forked, the recess 1* being comparatively narrow, (Fig. 5). The inner end of the stem 8 provided with a cross pin 11 which under .the action of the expanding spring 2' (interposed between the head 7 and rack 5) is drawn into the base of the recess for an outer position ofthe stem and button (Fig. 3) the'inner end of the stem under the circumstances coming flush with, the inner end of the plug. By pushing the button and stem inwardly until the pin 11' has passed beyond the end of "the plug, and then giving the stern a turn of ninety degrees, the.

thus hold the stem projecting beyond the plug as shown in Figs. 6t and 5. one

Each button is fastened to the outer end of,

by a nut 10 passed over the plug, the latter pin 11 will engage the end of theplug and toothed edges, the walls 5, 0, thus forming a I The inner end of the plug 9 is piston are actuated by the oscillating toothed arcs or segments 14,14' pivoted to the bracket S on each side of'the arm l3 and meshing with the toothed portions of the rack-bar. lhe forked operating handle H is coupled directly to the segments 14:.

Formed in the teppet block 12 is a trans verse recess or groovein which operates a sliding bolt 15 held against displacement or loss bye cover-plate 16 secured and shouldered to the block, the'plate being provided with e key-hole it (Fig. 7) for receiving a key K inserted through an opening 72/ in the rack-bar, the end of the key engaging a notch e in the bolt and shiftin it in proper direction (with the turning or the key) to ccuseit to engs e an. cpenin 0 formed in the adjacent Wtfl of the reek-oar. Theb'olt thus forced into the openin 0 locks the ruck-her to the block 12 (an its arm 13) thus locking the rack-bar against movement should an attempt be madeby unauthorized persons to. operate the 'urn Any kind of key or bolt may be emp eye that here illustrated being a conventions one The belt is held in place b a spring 17 drop ed into a socket of the-b ock 12 the spring eing confined by a screw plug '18, es shown.

"The operation may be described as, follows: Amumingthe handle'to be in its-lowest position in which case the piston 1 will be at the bottom of the pump-cylinder git beingef courseunderstood that the inder; has-been previously pumped full by a few strokes of the piston) and supposingthe o er'stonwishes to, dispense say 1% quarts p11 or other 11 1nd. He thereuponpushee Hi the indicator utton 7 and its stem 8 asshown in Fig. 4 whereupon with an upward oscillation of the handle H the rackber 5 and the piston 1 a're'drawn upward, the oil from the pipe p following the as cending piston. When the inner projecting end of the indicator stem .8 comes in contact or strikes the base of the tappet rib 12" the stroke of the piston-isarresteckand only that quantity of liquid which corresponds to the-particular length of stroke of the piston will be delivered through the spout n. In Fig. l the third button with'its stem has been shoved inward, sowith any given upward stroke oneend one-half quarts of oil are dispensed: lithe customer desires on]. "a pint, then the thirdstem is released, an the top stem'of the series is ushed in. The only stem which strikes the r1 12 is the one which has been shoved in, the remaining es7,1os

stems of the series readily clearing the tap- Jct rib. Each clerk may carry a key and lock the parts against movement by unauthorized persons by shovin the bolt 15 into the opening 0 of the mo bar 5 when the latter can not be moved from its locked position until again released by the next clerk having occasion to use tlie pump. In lieu of a rack and pinion connection between the piston and segments 14, any equ valent gearing may be substituted as obvious to the skilled mechanic. Of course, the pump and pump valves ,are well known, nothing novel being claimed for the pump proper.

Having described my invention, what I claim is 1. In combination with a pump cylinder having a reciprocating piston provided with a rod, an indicator movsbly coupled to the piston-rod of said piston, a tappet for intercepting'the indicator and thereby arresting further movement of the piston, and means for shifting the indicator to clear the tappet.

2. In combination with-a pump-cylinder having a reciprocating piston provided wlth a rod, a series of indicator devices mounted on the rod and spaced apart, said devices being adjustable horizontally, and a. stationary arresting tcppet positioned 1n the path of the vertical travel of said devices when they are adjusted in'one position and adapted to be cleared by said devices when they are not so adjusted. p 4

3. In combination with a pump-cylinder having a reciprocating piston, a rack-bur connected. thereto and projecting outside of the cylinder, a stationary tappet, a series of indicator devices composed of stems disposed alon the rack-bar and independently adjusta is to and from the tappet-whereby any stem may set to be impinged by'the tappet for a movement of the piston in one directlon and thereby arrest the ist-on.

4. In. combination wlth a pump cylinder having a reciprocating piston, a rack-bar connected thereto, a supporting bracket, a; pair ofo'scillating segments mounted on the rhc'ket and engaging the rack-bar, a tappet block or rib on saidbracket, u series of ndicater devices carried 1) 1 the rack-bar and adapted to be intercepts by the tap et, block aforesaid, and means on the tappet lock for interlocking with the rack-bar and prevent movement of the piston either direction.

5. In combinatlon with a pump cylinder, a reciprocatingpiston, a chambered rack-bar coupled thereto, a series of'rotatable stems secured to the face of the rack-bar, anouter terminal button for each stem, a hollow plu for each stein provided with an inner terminal recess, a pm on the stemadcpted to span the recess u onepe'rtial turning of the stem, the letter sing movable lou tudinally in the plu e. spring into use between the plug an its button, e eta ionery arm, atopames pet or impact block on the arm projecting into the chamber of the rack-bar and adapted to arrest a etennend oscillating toothed segments meshing with the teeth of the rack-bar.

rack-bar, a stationary support a series of rotatable spring-controlled stems distributed along the rack-bar, means for shifting the stems longitudinaliy in directions transverse to the axis of the rack-har whereby for an inward movement of the stems the same may be brought into position to impinge against the stationary support, and for an outward movement thereof inny clear said support.

In testimony whereof I aiiix my signature, in presence of two witnesses.

HENRY J. WICHh L th". Witnesses "EMILSTAREK, I JOB. A. Mlormn.

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