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Publication numberUS398881 A
Publication typeGrant
Publication dateMar 5, 1889
Filing dateMay 26, 1888
Publication numberUS 398881 A, US 398881A, US-A-398881, US398881 A, US398881A
InventorsEdward J. Colby
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 398881 A
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Description  (OCR text may contain errors)

(No Model.)



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SPECIFICATION forming part of Letters Patent No. 398,881, dated March 5, 1889.

Application tiled May 26, 1888.

To all whom 'it may concern:

Be it known that I, EDWARD J. CoL'Bv, a citizen oi' the United States, residing at Chicago, in the county of Cool( and State of Illinois, have invented a certain new and useful GasRegulator, of which the following is a specification.

My invention relates to devices l'or regulating the outflow ot' Iiuids, and particularly illuminating-gases; and its object is to provide a Convenient, cheap, and simple deviee whereby the increasing pressure of the gas in the supply-pipe will act to limit the dischargeaperture.

My invention is illust rated in the accompanying drawings, wherein Figure l. is a vertical cross-section. Fig. 2 is a iront view of the valve. Fig. 3 is a detail eiilarged cross-section oi the valve.

Like parts are indicated hv the same letter in all the figures.

A is a supply-pipe.

B is a discharge-pipe; the valve recejial ele or case.

D is a pipe within the ease C, and having i the side aperture, E.

l is a plate adapted to slide hack and lorth on top of the pipe l), resting at its sides against the ledge G.

His a serew provided at one end with a head, which is held in the side of the pipe D, and at the other end with a thumb-piece, J, whereby it may be turned. The screw H passes through screw-threaded aperture in l the rear end of the plate It, so that by turning the serew H by means of the thumb-piece the plate F maybe reciproeaiied along the top of the pipe D. I

At the outer extremity of the plate F are arms K K, in which is pivoted the rook-shaft L, from which depends the plate U. This plate is provided with the eonieallyshaped valve N, to pass into the aperture E, and also l with the screw-threaded bolt O, which mav enga-ge the stop P to limit the inward motion l of the plate M and valve N. l R R are arms upon the lower part of the l pipe D, to which is pivoted the rook-shaft S. On this latter is fixed the swinging stop T, l provided below with an adjustable eounterl Serial No. 275,198. (Nomotlel.)

weight, lf, and above with a eurved edge, Y, against which the lower end ol? the plate M rest-s.

The use and operation of my invention are as follows: When the gas enters through the pipe A into the case C, its only means oi exit into the discharge-pipe B is through the aperture E. The action ot the gas passing through the aperture E tends to cause the valve N to elose into such aperture, and thus limit the discharge. As the pressure increases in the supply-pipe, and thus in the case C, its tendency is to cause the valveX to more nearlivv lill the aperture E. Thus the discharge-apen ture is in inverse ratio to the pressure. The accuracy and sutlieieney oi' this movement depend upon the delieateand carefuladjust ment. In the tirst place the plate M is very delieatel)- suspended bv the rock-shaft Il, so as to give a very free movement to such plate.

' Again the arrangement oif the screw-rod ll permits the position of the rook-shaftA L to be very delicately adjusted Again, the stop P and serew-holt O permit a positive limit to the motion to he given. At its lower endthe plate M is supported by the swinging stop T. This stop is ver)v delicatelyv suspended on the shaft S, so as to move freellv. Its weightor resistance may be varied by moving the nut O on its lower end. Moreover, as will be seen by Comparison of Figs. l and 3, the curved knife-edge V at each inward movement of the plate M bears against suoli plate at a different position. Thus in l it. is bearing against said plate at a considerable distance above the lower end of such plate, while in 1 Fig. 3 the pressure of sueh swinging stop is l applied to the lower end of such plate, and

therefore much nearer to the `fulcrum of the stop, so that the inward motion of the plate M and valve N is increasinglgI` Checked as it progresses in its motion to close the apertureE.

The shape of the valve N and iis weight are such as to cause the plate M, with the valve N, to immediately retreatfrom the aperture E when the pressure is decreased, and the stop I? and bolt O properly adjusted will pre vent the plate ill from coming too near the mouth of the aperture;

Having thus described my invention, what IOO ' I claim, and desire to secure by Letters Patent,

is as follows:

1. In a Huid-regulator, the combination' of a discharge-pipe having; an aperture with a flap valve and adjustable plate to which such Hap-valve is pivoted, so as to vary the normal distance of the valve from the aperture.

2. In a fluid-regulator, the Combination of a discharge-pipe having` an aperture with a Hap-valve pivoted above and supported below by a swinging stop.

3. In a fluid-regulator, the Combination of a discharge-pipe having an aperture with a discharge-valve pivoted above and supported below by a swinging' stop provided with a curved bearing-edge, so that as the Hap-valve moves toward Vthe aperture its bearing-point approaches the fulerum of such stop.

4. In a fluid-regulator, the combination of a dischargepipe having,` an aperture With a Hap-valve pivoted above and a swinging stop provided with an adjustable counter-Weight.

5. In a fluid-regulator, the combination of a discharge-pipe having' an aperture with a `flap-valve and a swinging stop provided With a bearing-edge of such shape that as the flap valve nears the aperture the bearing-place approaehes the fuleruin ofthe stop, and also with an adjustable oounteraveight, so that the power of the stop may be varied.

6. In a Huid-regulator, the combination of a discharge-pipe having an aperture with a flap-valve,v a fixed stop, and a serevwbolt to engage sueh stop, so that the limit of approach of the flap-valve to the aperture may be fixed at will.

7. In a fluid-regulator, the combination of a discharge-pipe having,` an aperture with a flap-valve pivoted above to an adjustable slide and supported below by a swinging stop provided with an adjustable counter-Weight to fix the power of the stop at Will.

EDWARD J. COLBY. lWith esses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4457294 *May 13, 1982Jul 3, 1984Cumpston Edward HFor controlling the flow rate of a combustion air stream
Cooperative ClassificationF16K17/30