US1573210A - Variable fluid-controlling device - Google Patents

Description

Fel 16 1926. 1,573,210

A. C. WHIDDEN VARIABLE FLUID CONTROLLING DEVlC-E` Filed August 2, 1924 ,Il iii/1M, |I

Panarea Feb.' 1e, 1926.

.AUSTIN C. 'WHIDDEN, 0F LOS ANGELES, CALIFORNIA.

VARIABLE. FLUID-CONTROLLING DEVICE.

Application iled August 2, 1924. Serial No. 729,731.

p To all whom t may concer/n.:

Be it known that I, AUSTIN C. WHIDDEN,

I a citizen of the United States, residing at Los Angeles, in the countyof Los' Angeles and State-of California, have invented a new and useful Variable F luid-Controlling XDevice, of which the following is a specification.

This invention relates to improvements over my Patent No. 1,500,694, granted July 8, 1924, and my copending` application executed July 11,1924, filed July 22, 1924, Serial No. 727,430; and more particularly to improved and novel means for controlling fromdiflerent sources the delivery of various characters and volumes -ofliquid ranging from a pure liquid delivered from only one ofV the `sources through all degrees of mixture with liquid from another source, to a pure liquid from the other source only.

An object ofthe invention is to provide simple, compact, effective and novel means -for opening and closing hot and cold Water valves, 'either singly-simultaneously or disproportionately. e

An object is to provide a fiuid controlling devicefwherein the valves which control the flow of cold and hot water discharge into a mixing chamber in the device maybe conveniently and eiiiciently operated for the purpose of varying at any flow or volume up to full flow or maximum volume.l the proportions of the hot and cold Water entering the mixing chamber.

A still further object is to` improve the construction of devices ofthis character.

The invention is broadly new, basic and pioneer in that I provide a wedging block in the form of a circular cam plate which may -be rotated in one direction to open a hot water valve, and in another direction to-open 'a cold water valve, and which may be moved in a third direction to simultaneously open both of said valves so that liquid of aQpredetermined volume and temperature may be obtained.

Features of the invention 'are shown in the construction, combination and .arrangement ofthe parts. f

Other objects, advantages and features of invention may appear from the accompany.- ing drawing, the subjoined detailed4 description and the appended claims. y

The accompanying :drawing illustrates the invention. I

Figupe 1 is a plan view of e device constructed in accordance with this invention as applied to a Wash bowl or other support, a fragment of which is shown.

Iig. 2 is'a section on line m2, Fig. 1.

Fig. 3 is a bottom view of the cam plate detached.

Fig. 4 is a section on line Fig. 3.

The water or fluid control appliance 1 is shown operatively mounted on a Wash bowl 2 or other support which can be of any desired construction.

Hot and cold Water passages or pipes 3, 4 are connected with respective valve casings 5, 6 comprising the members 5, 5 and 6', 6, respectively. Said valve casings are provided with respective outlets 7, 8 that open into a shell 9 which forms 'a mixing chamber a, and is provided with a single outlet 10. f'

The pipes 3 and 4 may be provided with the usual check valves, not shown, to prevent flow into the pipes 3, 4 from the chamlber a in case the source of supply of either is cut ofi'.

Valves 11, 12 normally close the passages 3, 4 and are provided with valve stems 13, 14 that extend into the shell 9. Said stems are provided with guides 15, 16 in the form of ribbons that engage the bores of the valve casing members 5, 6 and guide the valve stems therein. The valve casing members 5", 6 are provided with extensions Z), c, to thereby form a longer bearing for the guides 15, `16.

A circular cam plate 17 adaptedto overlap the ends of the valve stems may be pinned to a square portion 18 of a shaft. 19 so that when the device is in closed position lthe plate 17 will lightly 'rest upon the ends of the valve stems or he spaced a small dis tance therefrom so as not to open the valves until desired; or suchplate may be slidably mounted on such shaft and in such case will rest upon the valve stems by gravity. The shaft '19. may be provided with a shoulder 19 to force the ca'l'nfyplate axially of the shaft as will be more" fully hereinafter explained. The shaft 19 has a rounded portion 18 that is slidably and rotatably mounted in a bearing 20 formed in the bottom of the shell 9, and is also provided With another rounded portion 21 that is similarly mounted in a stuffing box 22 that has ianges .23 clamped between the rim of the shell mounted on the cover 24 and has an outward i extension 26 mounted between the' flanges 23 and cover 24 to maintain the handle or lever support 25 in position, and also has a downward extension 27 that compresses` vthepacking 28 in the stuiing box.

A square bore '29 is provided in said support 25 to receive' the square end 30 of the shaft 19.

A handle or lever 31 is pivoted at -32 in the slot or forked'end 33 of the support 25. The inner end of said handle is provided with teeth 34 that engage with the rack teeth 35 formed in the. shaft 19.

The cam plate 17 is in the form of a thin disc 36 vhavingr a central extension 37 provided with a square bore 38 adapted to receive the lsquare portion 18 of shaft 19. Said plate 17 isiprovided on its under sur- 'face with a cam 39 that terminates at each end 40 a short 'distance from a center line 41 drawn normal to the diameter at the highest point 39 of the cam 39 so that when the device is assembled and in closed position the valve stems thaty are preferably mounted on the center line 41 will not. be

held in open position. The cam'plate 17 may therefore be said to comprise a disc approximately one-half of which is provided with a continuous cam surface 39 having a high spot approximately in the middle of said surface, and the other half of which is entirely smooth or fiat, or said latter half.

is in other words devoid of any means for operating the valves by rotation of the cam plate.

In operation the cam platev will be assembled so that in neutral position the ends 40 of the cam 39 will be equally spaced from the valve stems-13, 14 and the handle support 25 may be mounted on the shaft 19 so that the lever 31 will extend from the device in any conve-nient direction. A preferred direction is in a plane corresponding to a diameter through the disc 36 and the high spot of the cam 39.

If the operator desires to obtain hot and cold water in equal proportions the lever vor handle 31 is moved upward and the teeth 34 move the shaft 19 and cam plate 17 downward which engages the valve stems 13, 14 and moves said stems to open the valves 11, 12 equally.

Assuming that only hot water is desired and that "valve 11 is the one to be opened, the lever 31 is moved'anti-clock'wise and the cam 39 of the cam plate 17 V will force the stem 13 and valve 11 downward to open the valve. The lever may be moved in such direction until the valve is opened the desired distance. During this movement the cold Water valve -12 remains closed because that portion of the cam disc presented to the valve stem 14 is flat or smooth, that isv devoid of any projections.

Assuming the hot water valve is opened above and that the operator desires toreduce the temperature of the water to accomlish such end the lever 31 is raised, therey depressing both valve stems, opening the cold water valve 12 and further opening the hot water valve 11.

If the operator desires to change the temperature of the water Without changing the volume of liquid discharging from the outlet 10, the lever 31 may be moved in a clockwise direction at the "same time that it is Vbelng raised, thereby permitting the valve 11 to close a predetermined distance-'while the lvalve 12 is opening. v

Vhen only cold water is desired the lever 31 is moved in a clockwise direction.

A distinct advantage gained by my construction over similar devices is the full flow of one passage may be obtained independently of the ow from the 4other passage and that the temperature or characteristic of the liquid emitting from the outlet 10 may be changed at any flow up to 'and including full flow, and Ithe'volume of the discharging liquid mayl be maintained during changes of temperature,

I claim: I f

1. A fluid controlling device comprising passages; valves for said passages respectively each having valve stems; means to operate said valves comprising a disc adapt ed to engage said' stems and approximately one-half of which iis lprovided with a continuous cam surface having a high spot ap proximat'ely in the' middle of said surface, and the` other half of which is flat; and means to move said disc in one directionto open one of said valves, and in another direction to open another of said valves; .and in a third direction to cause simultaneous operation of said valves.

2. In a device of the character set forth, v

valves having stems; and a disc to engage with said stems and to operate said valves, said disc being provided with a continuous cam surface having a high spot approximately in the middle of said surface, said cam surface being arranged between said valve stems and terminating a shortA distance 'therefrom and adapted to operate one valve or the other in accordance with its direction of rotation, the remainder of said disc' bein devoid of protuberances so that when said disc is rotated to operate' one valve the other valve will remain closed.

3. A fluid controlling device comprising a casing; passages communicating withA said casing; valves controlling said passages; valve' stems'secured to said valves; a cover for said casing; a stuffing boxl extending from said cover; a shaft extending through..

of said surface, saidcam surface terminating said cam surface to operate one or the other of said valves according to the direction of rotation andto move said shaft axially to open said valves simultaneously and/disproportionately as desired.

4. A fluid controlling device comprising a casing, passages opening into said casing; valves controlling said passages; a cover for said casing; a stuffing box having ianges secured between said casing and cover; a

.handle support rotatably mounted between said cover and said flanges; a shaft extending through said stuifing box and handle support; a cam plate secured to one end of said shaft and adapted to operate said valves; and a lever pivoted to said support and adapted to rotate said shaft and move the same axially as desired.

A5. A fluid controlling device comprising a casing,`passages opening into said casing;- -valves controlling said passages; a cover for said casing; a stuiing box having .flanges secured between said casing and cover; a

. handle support rotatably mounted between said cover and said flanges and having a square bore; a shaft extending through said Stull-ing box Yand having a square portion iitted in the square bore of said handle support; a cam platesecured to one end ofV said shaft and adapted to operate said valves; and a lever pivoted to said support and adapted to rotate said shaft and move the same axially as desired.

G. A fluid controlling device comprising a VLcasing, passages opening into said casing;

valves controlling said passages; a cover for said casing; a stuing box having Hanges secured between said casing and cover; a handle support rotatably mounted between said cover and said flanges; a shaft extending through said stuiiing box and handle support and provided with rack teeth at one end; a cam plate secured to the other end of said shaft and adapted to operate said valves; and a lever pivoted to said support adapted to rotate said shaft and being provided on its inner end with teeth adapted to mesh with said rack teeth to move said shaft axially when Sad lever is moved about its pivot.

7. A fluid Controlling device comprising a casing, passages opening into said casing; valves controlling said passages; a cover for said casing; a stuing box having flanges secured between said casing and cover; a handle support rotatably mounted between said cover and said fianges by outward ex.

tensions on said sup ort positioned between said cover and said anges, a downward extension on said support extending into said stuiling box to compress the packing therein, a shaft extending through said stuffing box and handle support and provided with rack teeth at one end; a cam plate secured to the other end of said shaft and adapted to operate said valves; and a4 lever pivoted to said support adapted to rotate said shaft and being provided on its inner end with teeth adapted to mesh with said rack teeth to move said shaft axially when said lever is moved about its pivot.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 28th day of July, 1924.

AUSTIN C. WHIDDEN.

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