US290314A

US290314A - James h

Info

Publication number: US290314A
Authority: US
Publication date: 1883-12-18
Anticipated expiration: 1900-12-18

Description

(N0 Model) J. H. BLESSING.

GHEGK VALVE.

Patented Dec. 18, 1883.

Invenior:

J. HQ BLESS/N6,

jimm

JAMES H. BLESSING, OF ALBANY, NENV YORK.

CHECK- VALVE.

SPECIFICATION forming part of Letters Patent No. 290,314, dated December 18, 1883.

Application filed July 5, 1683. (No model.)

To aZZ whom it may concern Be it known that I, JAMES H. BLEssING, of the city and county of Albany, and State of New York, have invented certain new and useful Improvements in Check -Valves, of which the following is a specification.

My invention relates to improvements in straight-way check-valves having their valveseats fixed in an angular position in respect to the line of discharge of the liquids therethrongh; and the object of my improvements is to afford facilities for removing the inner parts of said valve from the valve-casing, for renewal or repairs,without removing said casing from its place in a-line of pipes. This object I attain by means of the construction illustrated in the accompanying drawings,

which form part of this specification, and in which--- Figure l is a side elevation of a check-valve containing my improvements,- Fig. 2, a l0ngitudinal section of the same; Fig. 3, a transverse section through the angular line a: w on Fig. 2; Fig. 4, a front elevation of the yoke for securing the removable valve-seat in place, and Fig. 5 a perspective view of the under side of the removable valve-seat.

As represented in the drawings, A is the valve-casing, preferably made in the ordinary .globe form, and provided with induction branch cueduction branch a, and top branch, (1, the latter being provided for the purpose of obtaining access to the inner parts of the device. The body of said casing is also provided with an inclined partition or diaphragm, B, which separates the induction from the eduction openings. The said diaphragm is provided with an opening, I), and an annular tongue, I), which is made concentric to said opening.

O is a removable valve-seat, provided with an opening, c-which coincides with the opening 1) through the diaphragm B-and an annular groove, 0, adapted to fit upon the tongue b. An elastic packing, c fixed in the groove 0', forms a water-tight joint With the tongue I). The said removable seat and the mode of forming the joint between it and the diaphragm constitute a separate invention, and will be found fully illustrated and described in Letters Patent of the United States N 0.

272,634, granted to me on the 20th day of February, 1883.

D is a U-shaped yoke, the ends of whose limbs bear upon the face of the valve-seat O at opposite points on said seat. The crown of said yoke is adapted to receive the pressure of a tap-bolt or binding-screw, E, which is inserted in the casing A at a point that is opposite, or nearly so, to the center of the valveseat 0, as shown in Fig. 2. The said bindingscrew has on its inner end a spur, e, which engages in a hole, d, in the crown of the yoke D, and confines the latter in place.

F is the valve, made in the ordinary clackvalve form, and arranged to swing on a pin, f, which passes through a sleeve, f, formed on the upper edge of said valve, and is retained in place by means of the screw-plugf The said valve is constructed and arranged in relation to the yoke D in such manner that it will swing freely between the two limbs of said yoke.

G is a bonnet or cap fitted to screw into the top branch, a of the valve-casing, so as to close the opening therethrough.

The parts should be made substantially in the forms shown and described, and preferably so that like parts for the same-sized valves will be perfectly interchangeable.

The mode of assembling the several parts to complete an operative device is as follows: The valve-seat 0, containing the elastic packing 0 is first fixed in place on thetongue bin the valve-casing A. The yoke D is then inserted in the casing in such manner that the ends of its two limbs will bear upon the face of the valve-seat O, and so that the hole (I will range in position to receive the spur e. The binding-screw E is then screwed down to press the valve-seat O with sufficient force against the elastic packing a to produce a watertight joint at that point. The valve F is then inserted into the casing A through the opening in the top branch, cf, the pivot-pin f is inserted in the sleeve f and bosses a and the plug f 2 is screwed down to secure the valve F in position. The bonnet G is then screwed down to its place, and the check-valve is completed, ready to be put into use.

By removing the bonnet G, tap-bolt E, and diaphragm, ofthe yoke D and binding-screw plugf, the valve F and valve-seat C may be E,arranged as described,and adapted to secure removed from the casim A,for the purpose of the valve-seat O in place, as herein specified. examination or repairs, without displacing 2. The colnbinationgvitharemovable Valve- 5 said casing from a line of pipe. seat, 0, of the yoke D and binding-screw E, 15

I claim as my invention as and for the purpose specified.

1. In a straight-way checkwalve, the com- J AMES H. BLESSING. bination, with a valve-casing, A, having an \Titnesses: inclined diaphragm, B, as herein described, \VILLIAM H. LOW,

10 and a removable valve-seat, C, fixed on said I S. B. BREWER.