US53185A - Improvement in pumps - Google Patents

Description

UNITED STATES PATENT OEEicE.

ASSARIA REWERICK, OF SAN FRANCISCO, CALIFORNIA.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent N0. 53, 185, dated March 13, 1866.

To all `whom it may concern:

Be it known that I, Assnnm REwEE1cK,of the city and county of San Francisco, State of California, have invented a certain new and useful Improvement in Double-Acting Pumps, called Rewericlis Double-Acting Pump and I do hereby declare that the following specication is a full, clear, and exact description ot' the same.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and the manner ot' operating the saine, referring' to the drawings, in which the same letters indicate like parts in each of the figures- Figure l being a side elevation. Fig. 2 is a sectional elevation.

The nature of my invention consists in pro` viding a double cylindrical barrel, the one t ting closely and operating inside the other, the inner barrel or cylinder having an inductionvalve at its base with two branches joined together above it, one of which extends upward through a slot in across-bar placed across the main barrel, through which it works in connection with the piston or bucket valve by means of jointed arms.

In the accompanying drawings, Fig. l, A represents a pump-barrel, (shown in elevation,) upon the top of which is bolted the standard D, which acts as a fulcrum for the handle B. To this handle are attached the conductingrods C C', placed on opposite sides of the support-standard D.

E E is a cross-bar, through which the pistonrods slide, and which serves to keep them in place. Fig. 2 shows clearly the parts.

To the jointed arms C and C are attached the piston-rods F and F', which move the respective pistons H and M.

C is the conducting-rod which conveys the motion to the lower piston. C is the conducting-rod which gives motion to the upper piston.

The piston M consists ot' a cylinder fitting water-tight to the pump-barrel A, and is ot' sufficient length to allow another piston to work inside ot it. At the bottom of the cylinder is au opening, V,'above which is placed the puppet-valve O, opening upward. This valve is supported and steadied by the spindle P, movingin the supports It and R. Inside the cylinder M is a piston, H H, (also furnished with a valve, I, and spindle K,l opening upward and moving in the cross-supports L L.

The operation of my pump is as follows, to wit.: When the lever or'handle is depressed the upper piston is pressed down and the lower or barrel piston is at the same time elevated and its valves shut, which forces the water through the upper valve at the same time; and when the handle is raised the upper pistou rises with its valve closed, and the water in its ascension is forced through the discharging surface or pipe. At the same time the lower piston descends, by which action its valve is opened.

Having thus described my double-acting pump, I will now state what I claim and desire to secure by Letters Patent:

The cylinders A and M and pistons H and N, with their valves. when arranged and operated substantially as described.

h. AssAEIA 1 EEwEEicK. [La] mark.

Witnesses C. W. M. SMITH, IsAIAH WESTON.

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