US191271A - Improvement in pump-plungers - Google Patents

Description

H. H.-TUTTLE. PUMP PLUNGER.

No. `191,271. Patented May 29,1877.

UNITED STATES' 'PATENT Ormea.

HIRAM H. TUTTLE, OF SAN JOS, CALIFORNIA, ASSIGNOR OF ONE-HALF HIS RIGHT TO FREDERIOK'FIELD, OF SAME PLACE.

'IMPROVEMENT IN PUMP-PLUNGERS.

Specification forming part of Letters Patent No. 191,271, dated May 29,1877; application tiled April 29, 1876.

To all lwhom it may concern Be it known that I, HIRAM H. TUTTLE, of San Jos, in the county of Santa Clara and State of California, have invented certain new and useful Improvements in Double-Acting Pumps; and I do hereby declare that the followingfis a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in which- Figure-l is a perspective view of one of the box-plungers and its attachments. Fig. 2 is a vertical transverse section of my'improved pump, with the parts in a working position. Fig. 3 is a detail sectional view of one ofthe improved box-plungers, and Fig. 4 a plan view of the metal-binding valve-plate and iexible packing. The nature of my invention consists in certain constructions, combinations, and arrangements of parts, as hereinafter described and specifically claimed, whereby certain beneficial results are attained, as will be presently set forth. j

In the accompanying drawings, A represents a rigid box-plunger, provided with a plunger-arm, B, andthe valves O O. The box-plunger A is made of wood or metal in rectangular form, and having its sides rigid from top to bottom, and of a depth equal to about one-third the depth of the pump-cylinder D, as shown in Fig. 2 of the drawings. The upper and lower side edges of the said box plunger are provided with projecting strips of suitable packing material, as shown at a, which keep the plunger steady, and free from oscillation, and at the same time isolate the greater portion of the depth of the box from contact with the sides of the chamber in which it moves up and down, and thus while the box-plunger is steadied and kept from vibrating by its packing-strips, it is caused to work with the least amount of friction. On the top edge of the box-plunger a flexible cup-shaped packing, b, ot any suitable material, is fastened securely. This packing has its outer edge turned up beyond the top of the box-plunger, so as to present a yielding surface for bearing snugly against the inside of the chamber in which the boxplunger moves. c is a sheet-metal bindingplate, stamped out of a single piece of metal, inthe form shown in Fig. 4. This plate tits snugly upon the packing b, and binds it {irmly to the top of the box-plun ger; and thus the packing is saved from being readily torn from its seat, and when worn can be removed, and new packing substituted, without unnecessary expense or delay.

It will be seen that by making the box-plunger of a depth corresponding to about onethird the depth of the pump-cylinder, and providing its upper and lower exterior edges with projecting strips ct' suitable packing material, so as to leave a space between the strips, and thus have a long portion of the box-plunger out of frictional contact with the sides of the pump-cylinder, there is little liability ot' the box-plunger oscillating under strain, and the inconvenience arising from such oscillation avoided, and the amount of frictional contact reduced, so as to lessen the power required for moving the said plunger.

rlhe box-plunger A is divided by a single vertical partition, A', into separate compartments, each of which is covered by a valve, O. The .partition A strengthens the boxplunger, so that the sides thereof shall always be kept rigid. The said partition also breaks the supply of water, and divides it equally to each of the compartments.

The valves O are formed together out ot' a single piece ofl leather, d, and upon certain portions of this piece of leather metal plates d are riveted, as at e. The rivets are inserted a little outside of the center of the width of the plates, so as to allow an easy movement ofthe valves upward at their hinge, and the breakage of the leather thus prevented.

The hinge portion of the said valves O are fastened to the central partition of the boxplunger A by a single metal strip,f, and a cap, g, to which latter one end of the plungerarm B is loosely attached. y rlhe plunger-arm B is of ordinary construction, having a sleeve on its upper end, by which it is fastened to the windlass or crank E.

The projecting strips a may be applied to the box-plunger, so as to just snugly tit the chamber in which the box-plunger moves, as

the cup-leather packing b is mostly relied upon for packing the box-plunger Water-tight while it is operating, and therefore the danger of the strips a wearing off by too close a contact is avoided.

The Windlass or crank E is constructed -With crank-arms, so that when the pump is in operation, and one plunger-box is discharging water, the other plunger-box will take Water.

Thus there can be one, two, or more plungers operated at will in this way.

F are braces, of any suitable form and construction, upon which the Windlass or crank E is placed. G is an aperture in the cylinder l), through which water from the box-plunger is discharged into the spout H. The said spout H is made with a bolting-tlange to secure it firmly to the interior sides of the pumpcylinder D. I are Valves placed over the supply-passages M at the bottom of the pumpcylinder. These valves are constructed in the same manner as the valves C of the box-plunger, except that the leather is not united. or formed together with two plates upon it; but they are separate, there being one independent valve for each pump-cylinder.

' The bottom of the pump-cylinder. is constructed so as to leave its center solid, for the purpose of directing the Water more perfectly to each of the box-plungers throughthe passages M, as shown. The valves I correspond in length to both of the valves G, as the passages M are equal to the compartments in the box-plunger A. K is a space or tank of any suitable form, placed beneath the pump-cylinder. This space` or tank, is equivalent to the same width and length of the two plungers, so that when either plunger is in full operation this space or tank is full of Water, thus supplying each plunger as required. J is a supply-pipe in direct communication with the tank K. The said tank K is secured to the l bottom of the pump immediately under the valves I. By placing the tank underthe valves I, and both acting with the plunger A, the

'by simply extending the length of the windlass E andA pump-cylinder, and thus it will be seen that as large amount of Water may be pumped as required.

I do not claim a box-plunger made with a depending leather packing, nor do I claim a box-plunger having the form shown in the 4patent to James R. Mills, No. 36,665, dated October 14, 1862, for a double-acting pump, nor do I claim any part of his construction 5 but What I' doclaim, and desire to'secure by Letters Patent, is-

1. In a pump, the box-plunger A, of rect-V angular form, divided by a single partition, A', into compartments, in combination with the supply-passage M at the base of the pump, substantially as shown and described.

2. The long stili' box-plunger A, having its sides rigid from top to bottom, the said sides having their upper and lower exterior edges provided with projecting' strips a, in combination with an upwardly-extended packing, b, substantially as described.

3. The binding-plate c, stamped out of a single piece of metal, in the form shown, in`

combination with the packing b, for the pur.-`

pese set forth.

4.,'Ihe rigid rectangular box-plunger, con` structed with the'projecting strips a, the yield-- ing packing-strip b, and binding-plate c, substantially as described.

HIRAM HECTOR TTTLE.

Witnesses:

J AMES A. CLAYTON, N. J. SHABTZER.

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