US326196A

US326196A - Valves

Info

Publication number: US326196A
Authority: US
Publication date: 1885-09-15
Anticipated expiration: 1902-09-15

Description

(No Model.) 2 Sheets-Sheet 1. J. H. BL'ESSING. MEGHANISM FOR OPERATING VALVES.

Patented S e t. 15, 1885 m mm m MHQQ J mlnesses:

(No Model.) 2 Sheets-Sheet 2.

J. H. BLESSING.

MECHANISM FOR OPERATING VALVES. -No. 326,196. Patented Sept. 15, 18.85.

mil/mass as: 172mm fm":

I 652% Jwss H BLESS/1Y6, Q

JAMES H. BLESSING, or ALBA Y, NEW YORK.

MECHANISM FOR OPERATING VALVES.

SPECIFICATION forming part of Letters Patent No. 326,196, dated September 15, 1885.

Application filed June 30, 1885. (No model.)

To all whom, it may concern:

Be it known that I, JAMES H. BLESSING of the city and county of Albany, in the State of New York, have invented new and useful Improvements in Mechanism for Operating Stop Valves and Cocks, of which the following is a specification.

In operating stop valves and cooks of a large size considerable difficulty is encountered in directly moving the parts, and, as heretofore constructed, the gearing commonly used has been so arranged as to greatly interfere with a proper access to the other parts of the valve or cook.

The object of my improvements is to provide a compact and eflicient device for operating stop valves and cooks by which the power can be increased to the degree required for operating said valves and cooks with perfect case. This object I attain by the mechanism illustrated in the accompanying drawings, which, being herein referred to, form part of this specification, and in which Figure 1 is a side elevation of the casing and screw stem of a stop -valve provided with my improvements, the balance of the device being shown in vertical section; Fig. 2, a plan view of the same, and Fig. 3 a 1ongitudinal section of astop-cock provided with my improvements with the turn-plug shown in side elevation.

As shown in Figs. 1 and 2, A is the valvecasing of a gate stop-valve of ordinary construction; B, the bonnet thereof, provided with a stuffing-box, b, of the usual form, and O the screw-stem for operating the gates or valves.

As shown in Fig. 3, A is the casing for a stop cock, of a usual and well known construction; and G the turn plug for the same, having a stud or stem, 0, formed on its upper end; D, an internal gear wheel, secured to the upper part of screw-stem G, as shown in Fig. l, or to the turn plug 0, as shown in Fig. 3. Said gear-wheel may be provided with a hand-wheel, d, as shown in Figs. 1 and 2; or, when preferred, said hand wheel may be omitted, as shown in Fig. 3.

E is a pinion fitted loosely on the upper part of the screw-stem O, as shown in Fig. 1, or upon the stem c,-as shown in Fig. 3; but in either case it is adapted to be rotated on said stems independently of the latter, which only serves as a center on which said pinion may be rotated.

The pinion E is retained in place by means FNITED. STATE PATENT OFF CE.

of a collar, 6, that is fixed on the stem on which the pinion revolves,

A hand :wheel, F, is secured to the pinion E, for the purpose of imparting motion thereto.

G is an idler pinion fitted to rotate on a stud g, which is fixed in the disk of the gear-wheel D. Said idler-pinion is arranged to constantly engage in gear both with the gear-wheel D and the pinion E, so that motion may be transmitted from the pinion E to the gear-wheel D.

The operation of my improved device is as follows: Power is applied to the hand.

Wheel F to rotate it in any required direction, and thereby a rotary motion is im parted to the pinion E, by which the idlerpiniou G is set in motion to rotate the gear- Wheel D, and the part--either a screw-stem or a turn-plugto which it is attached.

WVhen this invention is used for operating gate valves of moderately large size, the

hand-wheel (2 (shown in Figs. 1 and 2) may be used for moving the gates when an excessive pressure of the fluid has been removed from the gates by reason of the valve being in a partially-open condition, and under such circumstances it is obvious that the valve can be more quickly moved by means of the handwheel d than when operated by the train of gearing.

When preferred, the hand-wheel F may be dispensed with if the hub of the pinion E is adapted to receive a wrench or other implement for turning said pinion.

The proportions of the gear wheel D to the pinion E may be increased or diminished,

'as occasion requires, and thereby a correspending increase or diminution of the gain in power may be effected to suit the work to be accomplished.

I claim as my invention In a mechanism for operating stop valves or cocks, the combination, with a central stem or stud having an internal gear-wheel,"

D, fixed thereon, of apinion, E, provided with a. hand-wheel, F, or its equivalent, and fitted to rotate on said centrabstud or stem, and 10 the idler-pinion G, all substantially as herein specified.

JAMES H. BLESSING. \Vitnesses: J 0H1? W. WHEELOCK,

WM. H. LoW.