US919845A - Expanding device for pump-pistons. - Google Patents

Description

S. GAUTSGHB.

EXPANDING DEVICE FOR PUMP PISTONS.

APPLICATION FILED JAN. 17, 1908.

. Patented Apr. 27, 1909.

2 SHEETS-SHEET 1.

v jirdeiifi: zjam'zld 6 0117 0, 37 [ff/301%) 0/741.

' a)? masses:

S. GAUTSGHE.

EXPANDING DEVICE FOR PUMP APPLIOATION rum) an. 11,

91 9 ,845. atented Apr. 27,

2 SHEETS-SH I T I 5 7 [if/@Ifif:

,9 Q 070? kaZsT/k .sauunneau'rs'ona, or ME'rauoRA, ILLINOIQLQ I nxrhivnme movies: m. rm-rrs'rons.

, [Specification dinette Patent. Patented a rn 27, 1909,

i Assam mama. 11, 1906. was... 260,655.

To all 'lhl wm-it ma'y concern: 7

Be a known that 1, sinus]. Gram, citizen of the United States, residing at Meta mora, in the county of Wo odford and. State of Illinois, have invented certain new and useful Improvements, in Expanding Devices for Pump-Pistons, and do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it. appertains to make and use the same. v

This invention pertains to improvements in pump pistons, relating more particularly to means for adjusting the packing or leather carried by the piston. v

The invention further'relates to means for automatically spreading the pump leather as it wears so as to'make and maintain a water tight packing. j

In the appendeddrawings forming part of this ap lication, Figure 1 re resents a sectional e evation of a' cylinder s owing part of said rod to which t parted by means of a nut L. It will be noted my im roved' mechanism. Fig. 2 is a sectional e evation of another part of the invention. Fig. 3 is a top view of a leather spreading member. Flg. 4 is a top view of a piston member shown in Fig. 2. ig. 5 is an elevation of the two cylinders shown in Figs. 1 and- 2.

My device is applicable to all kinds of umps. In single acting pumps either one of the forms shown in the first two figures can be employed, and for force pumps both forms are used in conjunction.

A indicates an upper cylinder, and B indicates a lower one. Extending vertically through both cylinders is a plston-rod O, which near its up igr end, Fig. 1, carries an adjustable washer having beneath it an inverted cu shaped leather packing E. Beneath an withln said packing E is a washer F held in p G, there a so being a nut H above the Washer D by means of which the packing can be firmly clamped and held between both washers as will be understood.

Carried slidably on the rod 0 beneath the packing E is a cupped member J whose greatest diameter is nearly that of the inside of the cylinder as shown being tapered toward its to to enter the packlng as clearly shown. T 's said cupped member is forced into and held snugly within the packing by surrounding the means of a spiral splrnig K e eslred tension-1s 1mlace against the packing by a nut sure upward against the member will cause the latter to keep an outward or spreading pressure against the leather thereby maintaining a water tight joint between theleather and its cylinder.

Thepiston rod 0 extends downward into the lowereylinder and its extremity carries an open taperedmember M having a threadedbore N,- Figs. 2 and 4, which receives a valve-seat member 0 b means of an upwardly extending exteriorly threaded portion P, there being the usual flap-valve member Q seated upon said portion P as shown. Clamped between the two members M and O is a cupped leather R similar to E above describe but reversed in position. Entering said cupped leather is a s reader S corre-- sponding to J already descri ed said member L being slidable on the rod and held with a downward pressure into the leather cup by means of a spring T to which the desired tension is applied .by the use of a nut U on the rod 0. In this portion of the mechanism it will be seen that the, operation of the s reading parts is identical with that alrea y explained for the iston in the cylinder A.

' As shown in ig. 5 the cylinders A and B are used in conjunction with the pistons shown in Figs. 1 and 2 when the apparatus is to be used for pumping water under pressure. In 0 eration, as the piston in the lower cylin er descends the water raises the flap-valve Q and passes u ward into the upper part of the cylinder each upward stroke raising the water by means of the packing R and the continued action of the piston raises the water into the cylinder A which is now filled beneath the piston within the latter cylinder. A downward stroke of the piston-rod now puts the Water between the two pistons under pressure by reason of the simultaneous entrance of that the pressure is put upon the water in the vicinity of the bottom of the well without having to raise the water by suction. By locating it in the well the water may be forced to any distance whereas by suction itsaction would be limited by the well known physical law. As hereinbefore stated either one of the positions may be used to raise the that the spring by having a continual preswater by suction, if desired, althou h as amatter of fact the upper piston wo d have to be inverte'dand provided with a flapvalve similar to the lower one described. It is to be seen that the water in the pumping operation will raise above the lower iston but cannot pass downward again whi e the water can raise u to the upper one but cannot'pass beyond 1t but must be forced from beneath it to the exit by reason oi the in-' verted leather and the spreadingaction due to the member F and the s ring tension.

I am aware that cuppe jacking leathers have been used heretofore in pumps so that I do not claim anything on this feature alone. I am also aware that equivalents of said members have been employedin other arts with which means have been combined to wear.

for spreadin them into contact with the cylinder wal 'in which they travel to allow for the continual reduction in diameter due I amnot aware, however, of the construction and arrangement of parts such I as I employ for automatically spreading the meet the barrel at some distance beyond the plane of the clampin devices, and a springpressed conical mem er sliding upon the rod, at some distance from said devices and norand a pl mally pressing the marginal portion only of said flange against the barrel wall.

2. The combination with a pump barrel er rod therein bearing a rigid plunger bo y materially smaller than the Interior of the barrel, of a pliable disk of like size clamped to said disk and having a free marginal flan e extending obliquely to the barrel, a rigi cone sliding on said rod, at some distance from the lane of the clampi devices, and fitting witliin the free margina portion of said flange, and a spring urging the cone toward the smaller portion of the flane and pressing its free margin against the arrel wall.

having a lateral outlet, of a plunger rod arranged for reciprocating in the barrel, two

widely separated, oppositely turned plungers each materially smaller than its barrel secured to the rod upon opposite sides of said outlet, and-each carryin an annular cup-like packi ring of plia le material, having its free ange diverging to meet the barrel at some distance from the plane of the devices which hold it, two oppositely turned conical cup-expandin members slidably mounted upon t e rod etween the plungers, and adjustable rod-encircling springs yieldingly urgin the cup-expandin into the pac 'ng rings,-respective y.

In testimony whereof I aflix my signature, in presence of two witnesses.

SAMUEL GAUTSCHE.

members

Images