US819944A - Bib-cock. - Google Patents

Description

No. 919,944. PATBNTED MAY 8, 1906.

` J. A. sTEvENsoN.

B1B 909K.

APPLICATION FILED DBO.19, 1901i.

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UNITED sTATEs PATENT oEEIcE.

Specicaton of Letters Patent.

Patented May 8, 1906.

Application led December 19. 1904. Serial No. 237,586.

To all whom t may concern,.-

Be it known that I, JAMES A. STEvENsON, a citizen of the United States, residing at N ew Castle, in the county of Lawrence and State of Pennsylvania, have invented certain new and useful Improvements in Bib-Cocks; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the iigures of reference marked thereon, ywhich form a part of this specification.

My invention relates to a new and useful improvement in bib-cocks; and it consists of the novel construction and arrangement of parts whereby the vibration or rattling is entirely obviated, thus providing a cock of this character that will overcome a well-known defect in such devices.

In the accompanying drawings, forming a part of this speciiication, I have illustrated my device by several views, in which- Figure l is a longitudinal section view. Fig. 2 is a sectional view taken on line 2 2 of Fig. 1. Fig. 3 shows two views of the operating-rod, and Fig. 4 is a cross-sectional view taken on line 4 4 of Fig. 2.

Throughout the .several views the numeral l represents the body portion of the cock, in which is o eratively seated an eccentric-stem 2, control ed by a lever 3. Connected to the eccentric is a reciprocating rod 4, to the outer end of which is secured a valve 5, having its seat in the part 6. Formed in this part 6 are horizontal grooves 7 7, adapted to receive the ends of the wings 8 8, formed on the rod 4.

The main and essential idea involved in my invention being to overcome the wellknown defect of rattling common to cocks of this character and construction, I have provided a means whereby this objection is obviated and the device made absolutely noiseless under all conditions.

My invention then really consists in providing grooves or guidewa-ys in that part of the cock in which the reciprocating valve-rod 4 operates. These grooves receive the ends of the wings 8 8, formed on said rod, and when the valve is open and it is desired to close the same by simply giving the lever 8 a quarterturn to the right or left the valve will be drawn into the position shown in Fig. 2. This will give the valve a firm purchase against one side of the seat 6 and permit the water to still flow through the opening left at the opposite side. It is at this point that the rattling occurs in the devices of this character now in use on account of the rod 4 not having sufficient rigidity duringthe opening and closing period, the volume of water being forced around all sides of the valve, causing said rod to vibrate very rapidly and giving the rattling effect I desire to dispense with. A further uarter-turn of the lever 3 will draw the va ve 5 fully into its seat, thus closing up the space at one side of the same left open at the rst quarter-turn. In this way the force of water at the back of the valve will be gradually shut off, while at the same time the valve will retain a firm purchase on one side of the opening during the closing and opening period and prevent any jar or rattle in the device.

Having thus fully shown and described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a bib-cock, a body portion, a valve movable therein, a valve stem connected with the valve, the body portion being formed with horizontal guides, a pin arranged transversely to and extending beyond the valve-stem, the ends of said pin seating in the horizontal guides, said pin being connected to the stem wholly forward of the valve, and means for operating the valvestem to move said stem on the pin as a pivot, whereby the valve is reciprocated and moved to one side of the body at the limit of its opening movement.

In testimony whereof I aflix my signature in presence of two witnesses.

JAMES A. STEVENSON.

Witnesses: l

ERRETT E. PHILLIPS, ALEX. MCCLELLAND.

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