US682797A

US682797A - Barrel-tap.

Info

Publication number: US682797A
Application number: US3727400A
Authority: US
Inventors: Horace Grayson
Original assignee: HENRY H WILLIAMS
Current assignee: HENRY H WILLIAMS
Priority date: 1900-11-21
Filing date: 1900-11-21
Publication date: 1901-09-17
Anticipated expiration: 1918-09-17

Description

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(No Model.)

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i UNITED STATES PATENT' rrrcn.

HORACE GRAYSON, OF PROVIDENCE,`RHODE ISLAND, ASSIGNOR TO HENRY II. WILLIAMS, OF SAME PLACE.

BARRELLTAP.

SPECIFICATION forming part of 'Letters Patent No. 682,797, date septmbr 17, 1901. Application iiled November 21. 1900. Serial No. 37.274. (lio model.)

To @ZZ whom it may concern:

Be it known that I, HORACE GRAYsoN, of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in BarrelTaps, of which the following is a specification.

. This invention relates to means for tapping barrels containing liquids under high pressure--such as beer, ale, (incrand has for its object to provide a simple and effective device for this purpose adapted to be readily opened to permit the Withdrawal of liquid from the barrel and to be tightly closed to prevent leakage.

The invention consistsin the improvements which Iwill now proceed to describe and claim.

Of the accompanying drawings, Figure l represents a side elevation, partly in section,

of myimproved barrel-tap. Fig. 2 represents a section on line' 2 2 of Fig. l. Fig. 3 represents a section on line 3 3 of Fig'. l. Figs. 4 and 5 represent elevations of a portioxrof the tubular key. Fig. 6 represents a perspective view of the portion of the key shown in Figs. 4 and 5. Fig. 7 represents an end View of the bushing looking from the outer end.

The same letters of reference indicate the same parts in all of the figures.

In vthe drawings, d represents a casing or bushing which is externally screw-threaded and adapted to be engaged byits screw-thread with the head b of the cask or barrel, the said bushing having an extension ctat its inner end projecting into the barrel and provided internally with a tapering seat for a tapering plug-valve'c. The outer end of the bushing d is provided with segmental abutments 0.2602, formed and relatively arranged as shown in Fig. 7.

d represents a tubular key which has segmental ears d d', said ears having cam-shaped outer sides d2. The ears d are formed to enter the spaces between the abutments a2, so that the cam-faces d2 of the ears can be caused by the partial rotation of the tubular key to bear upon the inner faces of the abutments a2, this partial rotation causing the cam-faces of the abutments to coperate in imparting an inward endwise movement to the tubular key for the purpose hereinafter specified.

n The inner end of the valve c-is provided with an extension c', which constitutes a liquid-conduit and a key-engaging shank, said extension being squared externally to engage a squared socket dsof the shank and provided internally With la passage c2, which conl= municates with ports c3 c3, extending through the periphery of the valve c. The extension a of the bushing is provided with ports arranged to register with the ports c3 when the valve is in its opened position, each portbeing'preferably a group of orifices a3, said oriiic'es being sufficiently small to prevent the entrance into the valve of floating pieces of sufficient size to obstruct the valve and the passage therethrough. Hence the ports in the extension' a act to a certain extent as strainers. n

f e represents a colnpressible annular packing which surrounds the shank c' and is interposed'between the outer end of the body portion of the valve c and the inner end of the tubular key d. As'` shown in Figs. 1 and 2, the bushing or casi-ng a is provided with an internal annular rib,vwhich retains'the packing e in position, even when the. key d is removed.

-When the tubular key is inserted in the bushing and engaged with the shank c of the valve, the partial'rotation of the key which ,Causes the cam-faces .cl2 to bear on the inner sides of the abutments a2 and imparts an inward endwise movement to the key above described also turns the valve to bring its ports o8 into register with the ports in the extension a' of the bushing. The opening of the valve is therefore accompanied by a compression of the packing e, caused by the inward endwise/movement of the key, so that a tight joint is formed between the valve and the key, preventing. any leakage of liquid between the outer surface of the key and the bushing and causing the liquid to flow through the passage c2 and the interior of the key d,

the latter constituting the outlet of the barrel and being provided with a suitable faucet f. When the key is turned in the opposite direction to bring its ears d out of engagement with the abutments a2 and permit the withdrawal of the key, the valve is at the same ICG time turned to disconnect its ports with the ports in the extension of the bushing, the valve being thus closed.

The extension a is provided at the outer end of the seat for the valve c with an internal screw-thread 0x1.

g represents an externally-threaded head formed to engage the thread a, said head when screwed into the thread ai* bearing against the larger end of the valve c and pressing the latter firmly against its seat, provision being thus made for maintaining a slight connection between the valve and its seat and compensating for wear of the valve. The head g is provided with a screw-threaded stem or stud g', with which is engaged a nut 7L, having a flange h.

t' represents an annular com pressible packing, one side of which bears against the head g and the outer end of the extension a', its other side bearing against the ange h of the nut h, said packing covering the joint between the head g and the extension ct and preventing leakage through said joint. The packing z' may be compressed by rotating the nut h upon the stem or stud g'.

i It will be seen that the improved tap above described is of an extremely simple construction and that it is adapted to operate eectivly and without liability of getting out of or er.

The key d is preferably provided with stops d4 at the rear ends of the cam-faces d2 to arrest the rotation of the key when the valve has been fully opened.

I claim-V 1. Abarrel-tap comprisinga bushing adapted for engagement with the head of a barrel and having inwardly-projecting segmental abutments at its outer end,- an internal annular rib at a distance from its outer end and an extension at its inner end containing a valve-seat and liquid-ports, a rotary valve fitted in said seat and having a key-engaging shank projecting into the bushing and 6eme? ports adapted to register with the ports in the extension, the said valve having a liquidpassage extending from the ports through said shank, a tubular key formed internally at its inner end to fit over and engage said shank and having segmental cam-shaped ears formed to engage said abutments, the ears and abutments being formed and arranged so that a rotation of the key which opens the valve engages the ears with the abutments and gives the key an endwise inward movement, and a compressible packing interposed between a shoulder located near the outer end of the valve and the said internal rib of the bushing, and surrounding the shank of the valve, said packing being compressed by the inward movement of the key and forming a liquid-tight joint, the packing being adapted to be retained iu place by the said rib when the key is Withdrawn.

2. Abarrel-tap comprisingabushingadapted for engagement with the head of a barrel and having an extension at its inner end, containing a tapered valve-seat, liquid-ports, an internal screw-thread at the larger end of the valve-seat, a tapered plug-valve fitted to said seat and having ports adapted to register with the ports in the extension, and a shank projecting from the smaller end of the valve into the interior of the bushing, a screw-threaded valve-ad j usting head or abutment engaged with the internal thread of the extension, said head having a screw-threaded shank projecting from its outer side, a` nut formed to engage said shank, and a compressible packing interposed between said nut and the outer end of the extension, said packing covering the joint between the extension and the valve-adjusting head1 In testimony whereof I have aflixed my signature in presence of two witnesses.

HORACE GRAYSON.

Witnesses:

JOHN KEENAN, WILBUR A. Sco'rr.