US713052A - Plug-cock. - Google Patents

Description

No. 7|3,052. Patented Nov. ll, |902. L. J. BORDO L. SCHUTTE.

PLUG` 000K.

(Application med June 3, 1902.)

Ulu Model.)

UNITED STATESv PATENT OFFICE.

LAMBERT J. BORDO AND LOUIS SCHUTTE, OF PHILADELPHIA, PENN SYL- VANIA.

PLUG-COCK.

` SPECIFICATION forming part of Letters Patent No. 713,052, dated November 11, 1902.' Attimi@ ned June 3.1902. serrano. 1mois. (nomade.)

To all whom t Hetty concern.:

Be it known that we,LAMBERT.I. BORDO and LOUIS SCHUTTE, citizens of the United States of America, residing in the city and county of Philadelphia, in the State of Pennsylvania, have invented a certain new and useful Improvement in Plug-Cocks, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part thereof.

Our invention relates torplug-cocks, and has for its object to'provide a simple and efficient meanswherebya-nyjamming of theplugcock in its casing can be readily and quickly remedied and the cock put in operative condition.

The leading feature of 'our invention consists in providing a screw-gland adapted to hold the cock in position in thecasingand the spindle of the cock with shoulders or some equivalent construction whereby an intermediate interlocking bar can be secured to the gland and caused to abut against the shoulder on the' spindle, so that when the gland is unscrewed its upward motion will be communicated to the spindle and through it to thel cock.

The particular construction which we have devised for carrying our invention into effectl tion of the plug-cock, gland, and intermedi-y ate interlocking'device, the lower part of the cock being shown in section taken as on the line 2 2 of Fig. l. Fig. 3'is a cross-section through the cock on the line 3 3 of Fig. 2. Fig. 4 is a plan view of the top of the valvestem, and Fig. 5 is a cross-section taken on the line 5 5 of Fig. l.

A indicates the plug-cock casing, having inlet and outlet passages (indicated at A and A2) and a conical seat (indicated at A3) for the plug-cock. Above this conical seat is a charnber A4, serving as a stufng-box chamber, and above this chamber is an internally-threaded annulus (indicatedV at A5) into which screws the gland which holds the plug-cock in position and which, as shown, also acts as a stuffing-box gland. j

B is the plug-cock, having formed init the transverse port B and also formed with it the valve or cock spindle, which, as shown, extends above the shoulder (indicated at B2) at the upper end of the cock proper. This spin- 6o dle is 'made up of a cylindrical portion B3, which facts the stuffing-box chamber in the casing, the portion B4 of-less diameter` eX- tending still farther upward and having formed on it an annular ring B5, the function of which is to provide a shoulder for the engagement of the interlocking. bar to be described. -The upper end Bf of the valve-stem is squared tov receive a wrench or other device for turning the plug-cock. The particu- 7o lar form of cock shown isone provided with a lead lining, the outer lead-covered face of the cock being indicated at b4 and the lining of the port B being indicated at be. W'e form the cock proper with a central pouringport (indicated at b) which runs down to the rport B and is continied belowthis port, as

indicated at b3. From the central port I lead transverse perforations orports, (indicated at b,) and through the Wall of the plug-cock sep- 8o arating the port B from the outer surfaces we form ports, (indicated at b2.) It will readily be understood that the cock provided with these ports and inserted in a proper hole will -be provided with a proper lead protective coating by pouring the lead through the port b and permitting it to distribute itself through the ports and the inner and outer faces of the plug-cock, as illustrated in the drawings.

C indicates an annular ring resting in the 9o stuffing-box chamber on the top ledge B2 of theplug, or rather on the lead covering 197 of this ledge in the construction shown in the drawings.

D is an annular packing ot' asbestos or other 95 packing material placed in thestufng-box chamber above the ring C, and C( is a second annular ring resting on top of the packing and forming, in effect, a portion of the gland.

E is an eXternally-tlneaded gland screwing roo in the threaded portion A5 of the casi-ng and acting directly against the ring C', but indiroctly through the contents of the stuffingbox chamber against the shoulders of the plug-cock. Thisglandis continuedup around the valve-stem and has by preference formed in it an annular chamber E, with a lateral opening, (indicated at E2,) the said chamber furnishing an annularshoulder e', lying below the annular shoulder formed by the ring B5 on the valve-stein, and by preference the gland E is also provided with a hand-wheel E5, connected with it, as shown, by arms E4 E4. By preference we form in the bottom of the annular shoulder e and in the middle of the lateral opening E2 a recess, such as is indicated at F is a jam-nut screwing on the gland, as shown, and of such proportion as to extend over at least a portion ot' the recess E2 when the parts are in normal operative position.

G indicates an interlocking bar, which we form, by preference, as a fork or U-shaped device, the arms or parts being indicated at G G and provided with a downwardly-extending lug G2, which is adapted to enter the recess E3.

In operation the plug-cock is placed in the casing, the gland being removed for this purpose, and the gland lthen screwed into the casing, so as to force the plugcock to its seat. IVe then insert the interlocking device or bar G through the lateral opening E2, so that its lower surface rests upon the shoulder e' of the gland, and its upper surface goes beneath the annular ring B2, the lug G2 resting in therecess Es. The jam-nut F is then screwed over the end of the gland, securing the interlocking fork in position. It will be obvious that neither the gland nor the interlocking device interferes with the ordinary rotative movements of the plug and also that whenever in case the plug becomes jammed in the casing it can readily be loosened by screwing the gland outward, the gland carrying with it the interlockingdeviceGuntilitabuts againstthe collar B5, when the force exerted by the gland is communicated directly to the stein of the cock, with the result of lifting the cock from its seat. As soon as the cock is freed from injurious jam a slight movement of the gland downward secures all parts in proper operative position.

It is of course obvious that our invention can be embodied in greatly-modified forms without departure from its essential features, and we wish to be understood as in no wise limiting our claims to the special construction shown except where such special construction is expressly referred to in the claims.

Having now described our invention, what we claim as new, and desire to secure by Letters Patent, is-H l. In combination with a plug-cock casing and a plug-cock, a valve-stem extending from the plug-cock and having a shouldered portion, a gland screwing into the casing and surrounding the valve-stein said gland being adapted to force and hold the plug-cock to its seat in the casing and a removable interlocking device adapted to be secured in the gland in position to engage the shoulder on the valve-stein.

2. In combination with a plug-cock casing and plug-cock, a valve-stem extending from the plug-cock and having a shouldered portion, a gland screwing into the casing and surrounding the valvestem said gland being adapted to force and hold the plug-cock to its seat in the casing and having a shoulder e/ adapted to be beneath the shoulder on the valve-rod when the gland is in use and a re movable interlocking device adapted to be inserted between the shoulders on the gland and valve-stem.

3. In combination with a-plug-cock casing and plug-cock, a valve-stem extending from the plug-cock and having a shouldered portion, a gland screwing into the casing and surrounding the valve-stem said gland being adapted to force and hold the plug-cock to its seat in the casing and having a chamber E' with a lateral opening E2 formed in it in position to lie normally below the shoulder on the valve-stem and a forked interlocking device G adapted to be inserted in the chamber E' and to abut against the shoulder on the valve-stem when the gland is screwed outward.

4. In combination with a plug-cock casing and a plug-cock, a Valve-stem extending from the plug-cock and having a shouldered portion, a gland screwing into the casing and surrounding the valve-stem said gland being adapted to force and hold the plug-cock to its seat in the casing and having a chamber E with a lateral opening E2 formed in it in position to lie normally below the shoulder on the valve-stem, said gland having also a recess E2 formed in the bottom of its chamber E and a forked interlocking device G having a lug G2 adapted to be inserted in the chamber E with its lug extending into recess E3 and to abut against the shoulder on the valve-stem when the gland is screwed outward.

5. In combination with a plug-cook casing and a plug-cock, a valve-stem extending from IOO IOS

IIO

the plug-cock and having a shouldered porl tion, a gland screwing into the casing and surrounding the valve-stem said gland being adapted to force and hold the plug-cock to its seat in the casing and having a chamber E with a lateral opening E2 formed in it in position to lie normally below the shoulder on the valve-stem, said gland having also a recess ES formed in the bottom of its chamber E', a forked interlocking device G having a lug G2 adapted to be inserted in the chamber E with its lug extending into recess Es and to abut against the shoulder on the valvestein when the gland is screwed outward and a jam-nut F screwing on the gland and acting to retain the forked interlocking device in position by extending over recess E3.

6. In combination with a plug-cock casing and a plug-cock, a Valve-stem extendingrom the plug-cock and having a shouldered por'- Lion, a gland screwing into the casing and surrounding lche valve-stem said gland being adapted to force and hold the plug-cock to its seat Yin the casing and having a chamber E' wibh'a. lateral opening` E2 formed in it in position to lie normally below June shoulder 0n the valve-stem, an interlocking device 1o adapted to be inserled laterallyin'uo the chaml ber in lLhe gland and t-o engage the shoulder on the Valve-stem, and a. hand-wheel secured to the gland whereby il: can be screwed down or np in the casing.

LAMBERT J. BORDO. LOUIS SOHUTTE.

Witnesses:

GHAS. F. MYERS, F. STEWART.

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