US486680A - Cylinder and cylinder-cap - Google Patents

Description

(No Model.)

B. A. OWEN. CYLINDER AND CYLINDER GAP.

No. 486,680. Patented Nov. 22, 1892.

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ROBERT A. OWEN, OF CORAL, MICHIGAN.

CYLINDER AND CYLINDER-CAP.

SPECIFICATION forming part of Letters Patent No. 486,680, dated November 22, 1892.

Application filed March 8, 1892. Serial No. 423,572. (No model.)

To all whom, it may concern: united thereto, as bya union G. At the upper Be it known that I, ROBERT A. OWEN,a citiend the coupling is constructed with an enzen of the United States, residing at Coral, larged extremity, as shown at F, passed 5 county of Montcalm, State of Michigan, have freely through the lower end of the cap, and 5 invented a certain new and useful Improvewith a flanged head F The end of the cylment in Cylinder-Caps and Cylinders; and I inder-cap adjacent thereto is formed with an declare the following to be a full, clear, and exinwardly-directed flange or shoulder, as shown act description of the invention, such as will at (1 upon which said head rests. Before enable others skilled in the art to which it apthe two parts d d of the cylinder-cap are 10 pertains to make and use the same, reference united, as at 01 the coupling F is slipped being had to the accompanying drawings, down through the lower end of the cap. A which form a part of this specification. rubber gasket or other suitable packing-ring My invention has for its object certain new H is interposed between the flange d and the and useful improvements in a cylinder-cap head F of the coupling, the head seating on I 5 and cylinder, and relates more particularly said gasket when in place. The enlarged to improvements in pump-cylinder caps, the end F of the coupling is screw-threaded on its purpose of my invention being to facilitate exterior to receive a lock-nutJ, which, when the removal of the check-valve or plunger tightened up, will force the head F down valve without the necessity of removing the firmly upon the gasket, rendering the base 20 pump from the well therefor or disturbing its of the cap water-tight in its connection with position, thereby saving time and expense in the coupling. The lower end of the coupmaking needed repairs. ling is of less diameter than the screw- To this end my invention consists of the threaded end thereof, as shown. From this devices and appliances, their construction, construction it will be evident that when the 2 5 combination,and arrangement, as hereinafter nut J is loosened up sufficiently it may drop described and claimed, and illustrated in the down upon the union G, permittlng the oylaccompanying drawings, in which inder-cap to be disunited from the cylinder,

Figure 1 is a vertical section illustrating so as to afford ready access to the valves. my invention. Fig. 2 is across-section on the To facilitate unscrewing the cap from the 0 line 0050, Fig. 1. Fig. 3 is a cross-section on cylinder, the lower end of the cap may be the line 1/ y, gsquared, as indicated in Fig. 3, to permit the I carry out my invention as follows: engagement of an ordinary wrench therewith, A represents a pumpcylinder. B is the or a portion of the cap may be constructed check-valve located at its lower end below with a rib d to facilitate the engagement of 5 the plunger 0. a different form of wrench therewith. It is D represents my improved cylinder-cap, thus clear that when the nut J is loosened preferably constructed in two separable parts and dropped down the cylinder-cap may be d d, united in any suitable manner intermeunscrewed from the cylinder and lowered 9o diate their extremities, as shown, for examdownward on the coupling F, affording access 7 4o ple, at 01 to the check-valve B. Should it be desired At the end adjacent to the end of the cylto repair the plunger 0 or gain access thereto, inder A the'cap has a removable engagement the plunger-rod C may be disconnected from with the cylinder-as, for instance, byascrewthe pump-handle O at the joint 0 when the 9 5 threaded connection shown at a, the upper plunger itself may readily be slipped down 5 end of the cap being constructed with an upthrough the lower end of the cylinder withwardly-extended screw-threaded flange 01 out disturbing other parts of the pump. In and also with a valve-seat cl. this manner repairs may readily, convenient- E denotes the usual pump-tube communily, and quickly be made with a considerable IOO eating with the pump-cylinder. Iconnect the saving of time, labor, and expense, whereas 50 tube E with the cap D by means of a coupheretofore it has been necessary to remove ling F. This coupling is made of a suitable the entire pump from the well to make such size at the end adjacent to the tube E, to be repairs.

The plunger 0 is of ordinary construction, provided with an upper leather 0, a lower leather 0', and a follower 0 To facilitate the engagementof the plunger in the cylinder, Iprefer to flare or enlarge the lower end of the cylinder, as shown at a, Fig. 1. \Vhere the cylinder is of uniform size throughout, there is experienced considerable difficulty in entering the upper leather, since the upper leather turns up; but by flaring the cylinder at its lower end, as shown,the entire plunger is readily entered into the cylinder.

No tools are required for getting at the valves to make the necessary repairs, except an ordinary wrench.

I have shown and described my improved cap engaged with the lower end of the cylinder; but I would have it understood that the cap may be applied to either end or on both ends, as may be desired.

The cap is of economical construction. Its use dispenses with the necessity of disconnecting any pipes.

What I claim as my invention is 1. The combination, with a pump-cylinder provided with a plunger and check-valve, of a cylinder-cap having a detachable engagement with the end of the pump-cylinder adjacent to the check-valve, a coupling loosely passed through the opposite end of the cylinder-cap, and a lock-nut to tighten the engagement of the coupling with the cylinder-cap, the diameter of said coupling reduced beyond the engagement of the nut therewith to allow the loosened nut and disconnected cylinder-cap to slip down over the reduced portion of the coupling and afford access to the check-valve and plunger of the pumpcylinder, substantially as described.

2. The combination, with a pump-cylinder provided with a plunger and check-valve, of a cylinder-cap detachably engaged with the end of the cylinder, said cap constructed with a valve-seat at the end adjacent to said cylinder and with an inwardly-projected shoulder d at the opposite end, a coupling F, passed through one end of said cap and extending outward therefrom, said coupling provided with a head seated upon said shoulder, and a lock-nuthaving a screw-threaded engagement with said coupling adjacent to the corresponding end of the cap, the diameter of said coupling exterior to said cap reduced below the screw-threaded engagement of the nut therewith to allow the loosened nut and cylinder-cap to slip down over the reduced portion of the coupling and thereby afford access to the check-valve and plunger, substantially as described. 7

3. The combination, with a pump-cylinder provided with a plunger and check-valve, of a cylinder-cap having a direct screw-threaded engagement with the cylinder, said cap constructed with a valve-seat for the check-valve and with an interior shoulder at its opposite end, a coupling F, passed loosely through the shouldered end of the cap, provided with a head seated upon said shoulder, a gasket located between said shoulder and the head of the coupling, and a lock-nut having a threaded engagement with the coupling to tighten its head upon the gasket, the diameter of said coupling reduced below the threaded engagement of the lock-nut therewith to allow the loosened nut and cylinder cap to slip down over the reduced portion of the coupling, the loosening of the cylinder-cap affording direct access to the check-valve and plunger, substantially as described.

1-. The combination, with a pump-cylinder provided with a check-valve and plunger, of a cylinder-cap made in two parts united, one part constructed with a contracted valve-seat for the check-valve and havinga screw-threaded engagement with the adjacent end of the pump-cylinder, the other part of said cylindercap constructed with an inwardly-projecting shoulder, a coupling F, passed through the shouldered end of said cap and projecting outward therefrom, said coupling provided with a flanged head seated upon said shoulder, and a lock-nut having a threaded engagement with said coupling adjacent to the corresponding end of the cap to seat the head firmly upon said shoulder, the diameter of said coupling reduced below the threaded portion thereof to allow the loosened nut and cylinder-cap to slip down over the reduced portion of the coupling, thereby aifording access to said check-valve and plunger, substantially as described.

In testimony whereof I sign this specification in the presence of two witnesses.

ROBERT A. OWEN.

Witnesses:

N. S. WRIGHT, JOHN F. MILLER.

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