US2017739A

US2017739A - Faucet

Info

Publication number: US2017739A
Application number: US598015A
Authority: US
Inventors: Alfred E Tomlinson
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-03-10
Filing date: 1932-03-10
Publication date: 1935-10-15
Anticipated expiration: 1952-10-15

Description

1935- A. E. TOMLINSON 2,017,739

FAUCET Filed March 10, 4 1932 azfwz 7 2. 1%

ATTO 5Q INVENTORQ Patented Oct. 15, 1935 7 Claims.

This invention relates to a faucet which is particularly adapted to use with coffee urns of the type used in restaurants, although it is not limited to that use and may be employed, either with or without modification of the form here shown, in situations where considerably higher pressures are to be dealt with. The necessary characteristics of a valve of this sort are that it be quickly and positively changed from full closed to full open position and vice versa by a short swing of the handle, that it be perfect against leakage, that the closing will not be impaired by various hard deposits thereon (such, for example, as lime when the valve is used on a hot water urn), that the parts which are particularly subject to Wear and injury be-readily replaceable, that the moving parts of the valve be largely self cleaning and that the valve construction be such as to make assembly in anything but the proper arrangement physically impossible. Among the other purposes of the invention are the provision of a valve of this character in which the valve will not become locked no matter how tightly seated, but which on the other hand the seating will be accomplished even if little force is used in the closing motion and in which excessively tight closing will not damage the seat or rubber washer. Another purpose is to provide a valve in which the liquid flows directly through the center of the valve chamber and vertically downward and in which there is only a very short vertical spout, of large diameter relative to its length, below the closure. My invention is directed to the accomplishment of these purposes and provides means not hitherto known whereby they areaccomplished more perfectly than has hitherto been the case. To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detail certain mechanism embodying my invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of my invention may be used.

In said annexed drawing Fig. 1 is a vertical central section through the valve; Fig. 2 is .a horizontal section as indicated by line 22 Fig. 1;

casing is internally threaded at the bottom to receive a spout 4 having a protruding rim or flange 5 near its top, this rim being engaged from beneath by a hollow plug 6 threaded into the bottom of the casing I and maintaining the spout 4 5 in position. The spout is stepped at the top to receive .a resilient washer l which bears, as shown, with the outer portion of its upper face against a flange 8 in the casing I and which takes on the inner part of the upper surface the lower edge of 10 a downturned circumferential flange 9 on the closure disc it. The inner edge of the flange 8' defines an opening through whichthe disc Ill passes freely and the flange also forms the bottom of a valve chamber I l. 15

Alarge central passage, internally threaded as at it, extends up through the casing i from the chamber l l and a correspondingly threaded plug I3 is threaded into this passage by a multiple thread of high angle. This plug is internally cen- 20 trally chambered on various diameters to receive respectively the disc I0, a compression spring M,

a stem l5 and .a slotted head H3. These various openings being perfectly clear in Fig. 1 from the reference characters applied to the elements 25 which occupy them, are not themselves given reference characters. 7

The plug i3 extends upwardly on a reduced diameter by two opposed segmental members I1. The head it of the stem [5 passes down between 30 these. The stem I5 is threaded at its lower end into the disc iii .andby means of the head I6 prevents the disc from being pushed out of the plug l3 by the spring it, while allowing reciprocation therein. The disc it is conveniently 35 formed with a hollow stud i8 and is held from beneath by a cap nut l9. ,7 V

A bonnet 2i! is threaded over the top of the casing i. This bonnet includes a space 2! in which the upper end of the plug i 3 isreceivedon its up- 40 ward movement and another space 22 to allow upward movement of the extensions ll. A packing of conventional type, shown at 2 3, is placed between the bonnet and the casing l. A valve stem 9. passes through the upper part of the bonnet. 45 T s. m i pr d. fr re c ti n, b means'of a flange 25, packed as at 26 below and packed above as at 2?, the upper packing being preferably of the thread type and compressed by a gland 28 threaded to the valve stem and conveniently locked thereon bya nut 29. 'Above the threaded portion the valve stem is corrugated as at 30 to take a handle 3|. Below the flange 25 the stem extends downward in the shape of a tongue 32 slidablyengaging in the extensions Turning the tongue thus turns the plug l3. As the plug is lifted or lowered by the screw threads I2, the extensions ll slide along the tongue.

In closed position the plug l3 seats at the bottom on the flange 8, but the spring M holds the flange 9 of the disc l0 against the packing ring 1. Since the disc Hi can be turned up or down on the stem [5 and locked by the nut 19, the compression of the spring Hi can be adjusted. In case the washer 1 needs to be removed, anyone of sufficient intelligence to use a wrench or pair of pliers can take out the plug 6 thereby removing the spout 4 and can replace the washer. The disc II) will be prevented from coming out at this time by the head l6 and the adjustment of the spring [4 will not be changed. After the washer is replaced it is impossible to reassemble the spout in any but the correct way, since the plug 6 is only threaded. at the upper end, inside of which the flange 5 fits. It will be noted in Fig. 1 that the head it is above the bottom of the space in which it works. Thus, irrespective of the seating of the body IS, the disc ill is always independently seated by spring pressure. Liquid working up past the threads l2 cannot escape from the valve, even though the valve be used in a situation where the pressure is considerably greater than in a coffee urn. The reason for this is that the bonnet is packed at 23 and the portion of the stem 24 which passes through the bonnet is smooth and is packed on each side by packing which revolves with the stern. It will be noted that when the gland 28 is locked by the nut 29 both of these members turn with, and not on, the stem.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention:

1. In a faucet, in combination, a plug for closing the faucet adapted for screw lift, a stem movable in rotation only for actuating said plug, an axially slidable connection between said stem and said plug, a bonnet wherein said stem is mounted, said mounting comprising an inwardly directed flange in the bonnet and an outwardly directed flange on the stem therebelow, and a packing washer between said flanges, and means for holding said stem flange up against said Washer and said washer against said inwardly directed'flange, said means comprising a gland constrained to rotate with said stem.

2. In a faucet, in combination, a plug operable by screw action, a movable element carried by said plug, a spring between said plug and said movable element whereby said movable element is urged in advance of said plug, a seat element adapted to co-operate with said movable element, a washer on said seat element carried by a removable section of said faucet, said plug having means for isolating said washer from the fluid in said faucet when it is desired to remove said washer.

3. In a faucet, in combination, a valve chamber open to a supply of liquid, a screw plug entering said chamber, a closure member on the lower end of said plug and of less diameter than the plug, movable mounting means of said 010- 5 sure member on said plug permitting limited independent movement of the closure member, said mounting including resilient means urging said closure member in advance of said plug, an annular valve face on the lower end of said plug, 10 seating means for said closure member comprising a spout secured below said plug and below the valve chamber, a flange and a washer seat on the upper end of said spout, a washer on said seat adapted to receive said closure member to 15 shut said chamber off from said spout, means for removably securing said spout to the faucet casing, and an internally directed flange at the lower end of said valve chamber, the upper face of said flange constituting a valve seat adapted 20 to be engaged by the lower face of said plug.

4. In a faucet having a valve chamber, a plug entering said chamber and axially movable in the faucet body and a closure member carried on the lower end of said plug, seating means for 26 said member comprising a spout secured below said plug and below the valve chamber, said spout having a flange, means for securing said spout to the faucet casing comprising a hollow plug internally stepped at its upper end to re- 3,0 ceive said flange and engageable at its upper end with said casing, the lower end of said hollow plug being incapable of engagement with said casing.

5. In a faucet having a valve chamber, a screw 35. plug entering said chamber and threaded in the faucet body and a closure member carried on the lower end of said plug, seating means for said member comprising a spout secured below said plug and below the valve chamber, a flange and a 40.. washer seat on the upper end of said spout, a washer on said seat, means for securing said spout to the faucet casing comprising a hollow plug internally stepped at its upper end to receive said flange and engageable at its upper end 45. with said casing, the lower end of said hollow plug being incapable of engagement with said casing.

6. In a faucet having a casing and a spout, two closure means adapted to be closed by the same 50 axial movement, a seat on said casing for one of said means and a seat on the spout for the other, means yieldably urging one of said closure means in advance of the other to seat upon said spout. 55

7. In a faucet having a casing and a spout, two closure means adapted to be closed by the same axial movement, a seat on said casing for one of said means and a seat on the spout for the other, yiel-dable means urging one of said 60.- closure means in advance of the other to seat upon said spout, means securing said spout to said casing, and a washer between said spout and casing also constituting a seat on said spout.

ALFRED E. 'IOMLINSON.