US349551A

US349551A - Operating-lever for pumping machinery

Info

Publication number: US349551A
Authority: US
Publication date: 1886-09-21
Anticipated expiration: 1903-09-21

Description

N5 Model.) r

J. WHEELOUK. OPERATING LEVER FOR PUMPING MACHINERY. N0. 349,551,

Patented Sept. 21

FlEl..l.

k WITNESSEE N PETERS, Mlllbagripher. Wnhinglm. D. C.

UNITED STATES PATENT OFFICE.

JEROME \VHEELOGK, OF \VQRGEST ER lWIASSAOHU SETTS.

OPERATING-LEVER FORPUMPING MACHINERY.

SPECIFICATION forming part of Letters Patent No. 349,551, dated September 21, 1886.

A pplicationfiled June 2, 1886.

To all whom it may concern.-

Be it known that I, JEROME WHEELooK, of Vorcester, inthe county of \Vorcester and Commonwealth of Massachusetts, have invented new and useful Improvements in Operating-Levers for Pumping Machinery, of which the following, in connection with the accompanying drawings, is a specification, like letters representing like parts.

Hy present invention relates to operatinglevers for reciprocating pumps, the pistons of which are propelled through connecting-rods attached to a reciprocating part of machinery of any description. by any ordinary mechanism, and has for its object to give an easy and yielding stroke to the piston which forces the liquid through the discharge-pipe.

Furthermore, my invention consists of the improved construction of said lever combining two separate levers into one and applying springs foran easy adjustment.

As is well known to those skilled inthe art, there is always in the cylinders of directacting pumps a certain amount of pressure which is created by the resistance of the fluid crowding through small openings in a large quantity. This is particularly the case with those pumps whose pistons are traveling rapidly, necessitating the displacement of a large amount of water or any other liquid in a very shorttimc, so that when the piston is solidly connected to any reciprocating mechanism which has a positive movement there is always danger ofbreaking a part of the pump or its connection with the driving power should the resistance be so great as to prevent the piston from performing its duty.

In view of this fact my invention is especially adapted for pumps of the above-men-t tioned variety, as illustrated in the accompanying drawings, in which Figure 1 represents a pump connected by means of my improved lever and a link with the cross-head of a steam-engine. Fig. 2 is a front view of myimproved lever, illustrating its action in case of too much compression inthe cylinder of the pump; and Figs. 3 and 4 in several views show my improved 'lever in detail, the main acting parts being separated.

Referring to the drawings, A is a pumpcylinder having a piston and piston-rod, a,

Serial No. 203,956. (Nomodet) the pump would move in the same direction,

the travel of the latter, however, being shorter than that of the former on account of the difference in the distances of the points f and d from the fulcrum e.

' As my present invention the lever 0 consisls of the two parts 0 and G which are cast or made separately to be afterward united by a pin or bolt at g, which serves as a pivot for the small arm 0', which is adjustably held in proper position by means of springs h it restingagainst the wings 2' t at the lower end of the lever G and firmly attached to the swinging end of the arm 0. g

In order to secure a guide for the arm 0 at its lower orloose end, I provide the wings i of the lever O with holes '17, as shown in Fig. 3, through which and the springs h h a bolt,j, is drawn and secured by nuts 7c. (Shown in Figs. 1 and 2.)

To enable the arm 0 to properly swing or adjust itself to the extent allowed by the springs, the hole in the loose end of the lever through which the bolt j passes is elongated, as especially illustrated in Fig. 4. As previously stated, the coupling-rod B, connecting the lever O with the pump-piston, is attached to the former at the point d, and the effect and working of my improved lever will be seenin Fig. 2,where the upper end is represented as being moved by power in the direction of the arrow. The resistance which the piston in the pump meets with is transferred to thearm O, which yields after acertainamountof pressure has been attained, and then takes its normal position again, the springs h h operating to that purpose. By these means the surplus strain is practically taken off the operating parts,all0wing the machinery to run smoothly without being liable to break either cylinder- IO ing optional; but

\Vhat I claim'as new and my invention, and desire to secure by Letters Patent, is-

In an operating lever for pumping machinery, the combination,with a lever pivoted at one end and provided with lugs or wings and springs resting against the same, of an arm connected with the pump and pivoted to said lever, all operating as and for the purpose specified. I

JEROME XVHEELOGK.

\Vitnesscs:

CHAS. F. SOHMELZ, ARTHUR E. HILL.