US1165021A - Pump-actuating mechanism. - Google Patents

Description

J. D. PRICE.

PUMP ACTUATING MECHANISM.

APPLICATION FILED FEB. 1a. \914.

1 1 65 ,02 1 Patented Dec. 21, 1915.

WEI/677L250? "OLUMHIA PLANOGRAPH c0., WASHINGTON. D. c.

.Io NATHAN D. PRICE, or CHICAGO, ILLINOIS.

I'U 'r-Ac'ruA'rING MECHANISM.

; Specification of Letters Patent;

Patented Dec. 21, 1915.

Application filed February 18,1914. Serial No. 819,361.

To all whom it may concern: M *Be it known that I, JONATHAND. "PRICE, a citizen of the United States, residing at'Chicago, in the county of Cook and State of Illinois, have invented-new and useful Improvements in Pump-Actuating Mechanism, of which the following is a specification,-reference being had to-the' accompanying drawings, forming apart thereof.

The purpose of this invention is to provide a mechanism adapted to replace the ordinary necting it with the pump rod, and'arranged to furnish an increase of leverage without any material increase in the size or extent of the mechanism itself.

Itconsists of the features and elements described and shown in the drawings as indicated by the claims.

In the drawings: Figure 1 is a side elevation of a mechanism embodying this invention. Fig. 2 is a detail section taken as 1n- I dicated at line 22 on Fig. 1. Fig. 3 is an enlarged detail section taken as indicated at line=33 on Fig. 1.

This mechanism is designed to replace the ordinary fulcrum supportand operating lever in common use on hand pumps, and to be fitted directly to the pump barrel or standard indicated at A, in Fig. 1. For this purpose the base, B, of the mechanism is formed as a flange provided with bolt holes, B through which securing bolts, B may be set into the top of the standard, A. Rigid with the base, B, there is shown a stationary rack, C, extending vertically from the base and formed on a casting, D, which serves as a fulcrum support for the hand lever, E. In across head, F, which is guided for vertical reciprocation along the rack, C, there is journaled a segmental gear, G, Whose teeth are formed to mesh with the rack, C. Opposite the toothed portion the gear member, G,

carries a pivot pin, G and the position of this pin may be so related to the length of the lever, E, that as the cross head, F, recip rocates along the rack, C, the rotation of the gear member, G, will carry the axis of the pivot, G in a path which coincides with a circular are having its center in the fulcrum axis, E of the lever. This being the case, it becomes possible to connect the gear, G, with the lever, E, by extending the pivot or crank wrist, G to engage said lever, and through this connection a rocking movement of the lever, E, will cause the gear, G, to roll up 1 and down along the rack, C, carrying with it the cross head, F, in which it is journaled at' F and' thus serving to actuate the pump rod, H, which is rigidly connected to the lower end of the cross head, F.

--The upper end of the cross headmay be adapted for connection with the 'usualvertieally reciprocating member, J, of a windmill gear, this connectionbeing of course detachable at will, as by removal of the bolt, J shown in Fig. 1, so as to permit "hand form of pump handle and the linkage-conoperation of the pump. When the pump is which the pump standard itself is mounted, thus preventing this pressure from causingany undesirable lateral strains in the pump standard, and also preventing undue bending strains at the junction of the casting, D, s

,with the base, B. The thrust member, K,

may be adjustably connected to the casting,

D, by means of a threaded portion engaging a lug, D and secured in said lug by adjusting nuts, K and K arranged above and below the latter so that the effective length of the thrust member, K, may be varied sufficiently to insure that said member will actually receive the strain which it is intended to bear.

I claim 1. In combination with a pump standard and a pump rod mounted to reciprocate therein,.a rack fixed on the standard, a gear adapted to mesh with said rack, a rotary mounting for the gear rigidly connected with the pump rod, guiding means for keeping the gear in mesh with the rack, said gear having a crank arm, a lever fulcrumed about an axis parallel to that of said gear and having an arm longer than the crank arm of the gear, and means connecting said armjof the lever with said crank arm of the gear whereby a given angular swing of the lever is adapted to rotate the gear through a greater angle and cause reciprocation of the pump rod connected'to said gear.

2. In combination with a pump standard and a pump rod mounted to reciprocate therein, a rack fixed on the standard parallel to the path of such reciprocation, a gear adapted to mesh with said rack, a rotary to said crank with its fulcrum so positioned that the path of the lever at such pivotal point coincides with-the path-of the erank' when the gear rolls along the rack.

3. In combination with a-pump staiidard and a pump rod mounted to reciprocate i end to said crank with-its fulcrum vso positioned that the path of the lever at such pivotal point coincides with the path, of the crank when the gear rolls along the rack 7 4 In combination with a pump'standard Copies of this atent maiy be ohtaine dlfor five centsieach, lqy

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testimon my hand-at Ghieag y llinoi thi 1 thday so of February, 19 4- i W nesses :1 I

and a pump rod mounted to reciprocate therein, a rack fixed on the standard, a cross head guide'dto reciprocate along said rack, a gear ournaled in said cross head in mesh with the rack, said gear having a crank positioned to describe a path coinciding with a circular arc,' and an operating lever pivotally connected lfliOIlQ end to said crank with its fulcrum at the center of such circular arc.

whereof Ijhave hereunto set JONATHAN n Peron.

EDNA MAQIINTQSE;

addressing me :Gdmniiq iqifirht new;

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