US418709A - furber - Google Patents

Description

P10. PURBPR au G.' s. AYPRP (No Model.)

PUMP.

Patented Jan. 7. 1890.

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FRANK O. FURBER AND GEORGE S. AYER, OF' SACO,`MAINE.

PUMP.

SPECIFICATION forming part of Letters Ifatent No. 418,709, dated January '7, 1890. Application tiled March 7, 1889. :Serial No. 302,261. (No model.) Patented in Canada April 21, 1887,-N0. 26,414.

To a/ZZ whom it may concern:

Be it known that we, FRANK O. FURBER and GEORGE S. AYER, both residing at Saco, in the county of York and State of Maine, have invented certain new and useful Improvements in Pumps, of which the following is a specification, reference being had therein to the accompanying drawings.

A modification of this invention was patented in Canada April 2l, 1887, No. 26,414, to George S. Ayer.

This invention relates to pumps of the kind known as suction or force pumps having wooden stock.

The invention consists in the combination of a particular detachable metallic cylinder with the wooden pump-stock and the particular construction of the cylinder.

The object of the invention is to provide a smooth cylinder or working-barrel in which the suction-box of the pump willvwork, which cylinder will form a seat for the drop-box or lower valve box or casing, and also a convenient means of coupling the pump-'stock with any additional length orkind of pipe required.

Figure 1 is a longitudinal section 0f the metallic cylinder with coupling-section in elevation. Fig. 2 is a section of the bottom of a Wooden pump-stock, showing section of cylinder applied. Fig. 3 is a sideelevation of a drop-box. Fig. 4 is a broken section of a modification.

A indicates the lower portion of a wooden pump-stock. p

B indicates a detachable cylinder, preferably of metal with a porcelain lining. This cylinderB has its upper end within the pumpstock.

The suction-box C is provided with the usual clapper-valve.

The cylinder B has a conical throat D, into which the lower box E (called the drop-box, lower valve box or casing, or bail-box of the pump) finds its seat. The box or plugE is perforated longitudinally and has a bail F at its upper end, under which bail there is a check-valve G.y The outer surface of box E is covered with an elastic packing substance The box E is so long thatit cannot turn over in the pumpstock. Y When dropped into the pump before the insertion of the rod, the box falls into its seat in the conical throat D. The lower end l-I of cylinder B below the conical throat is preferablyconical, but tapers in reverse direction and has a flange I, through which there are bolt-holes. The' cylinder may be pressed into the pump-stock until this lower section of the tube finds a iirm bearing inthe pump-stock, making a water-tight joint.

The cap-section K of metallic pipe'may be bolted to the iiange I of cylinderB. The section K extends into the water of the well or cistern.

When it is desired to connect the pump to a lower wooden tube instead of the metallic pipe, a wooden pump section or tube L, having tenon adapted to enter the conical lower end of cylinder, can be used.

The drop-box can be readily lifted out by a hook or catch for repairs.

The insertible cylinder B is preferably made with a slight external taper, so as to iit snugly in the wooden pump-stock, and when pressed farther in the lower end of the pumpstock may be reamed out or counterbored t-o receive the tapered section H. The upper part of cylinder B may have a slightly-expanded collar M, preferably tapering, either integral with the cylinder or attached thereto, to close lirmly into the wood of the pump and make a tight bearing.

It is evident that the conical portion H at the bottom of the lining-cylinder may have more or less taper or may depart somewhat from the conical form. I The throat O may be screw-threaded internally to receive a metal pipe, instead of coupling with a flange, as in Fig. 1. The screw-threaded portion will be in addition to the flange, so that either mode of coupling may be adopted. It will be seen that this lining or coupling piece B serves not only as a working-barrel for the pump and as a seat for the lower Valve-box, but as a means or' coupling the pump-stock with any one of the three kinds of pipe in common use in this art-to wit, a coupling with threaded iron pipe by screwing the pipe into the threaded throat, or in lieu thereof a coupling with wooden pipe by entering the pipe into the lower socket, or a coupling with the capsection or bowl K, which is oft-en used to form connection with lead pipe.

IOO

As is shown in Fig. 2, the cylinder or coupling-piece B. enters almost entirely into the wooden pump-stock, and is thus `greatly protected against freezing.

Vhat we claim isl. The combination, with a wooden pumpstock, of a metallic cylinder at the lower endthereof, said cylinder having a conical seat therein for the lower valve-box, and below said seat a screw-threaded portion for a metallic pipe, and a taperinT socket for a wooden pipe, which pipes may be connected alternatively, substantially as described. l

f3. A metallic coupling-piece for woodenpumps, having an upper cylindrical portion vto enter the wooden pump-stock and form a substantially as described.

In testimony whereof We aiiix our signatures in presence of two Witnesses.

FRANK O. FURBER. GEORGE S. AYER.

Witnesses:

.lossenY HILL, 2d, I-IAMPDEN FAIRFIELD.

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