US967184A - Feeding apparatus for acetylene-generators. - Google Patents

Description

N, GOODYEAR. FEEDING APPARATUS FOR AGETYLENE GENERATORS.

' AliLIOATIDN FILED MAR. 10, 1908.

( 1 m we 1 Wot Patented. Au 16,1919

filth illljflrllflllfiimlii' Elli iillil'iill "SEUll'IK, 1'0. '21, ASSIG'INUR Til J. B. CULT UUTWTPANY, (ll? ll Till, 1h CUJRPORATION 035 NEW JERSEY.

nrrsnarns iron AGETYLENE-GENERAUEURS.

I fipecificstionof Letters ratent. Paigpntgfl Aug, 16, 1911p) Application tiled Mercia w, 1908. serial No. ROAM.

all whom it may concern."

lde it known that l, hl'nnson Goonrnsu, a citizen of the United States, residing at New York, county and State of New York, have invented certs-in new and useful improvements in Feeding Apparatus for Acety' lenelienerutors, of which the following is a full, clear, and exact description.

My invention relates to feeding apparatus for ucetylene generators, end-has for its o iect to provide a new and improved means for feeding carbid.

it further has for its means for feeding what known lump carbid, that is, csrbid which is in rather course form as distinguished from pulverized carbid heretofore largely used in acetylene gas generators.

My apparatus is adaptedto feed carbid of all sizes, but is pzirticularly valuable in that it can be used in connection with lump curbid.

Another Ol018Cl? of my invention is to pro vlde an apparatus for feeding lump cnrbid -in which the carbid is contained within a hopper and discharged directly therefrom through a small opening into the water he ncuth it, the advantage being that on ac-' count of the small opening the carbid within the hopper is very much less subject to hygroscopic action. The carbid is discharged piece by piece substantially continuously so long as the movement of the operating mechanism goes on, thus insuring a substantially continuous feed which maintains the pres-. sure of the gas within the generator substsntially constant.

Another object of my invention is to do away with the need of a gasometer for maintaining a substantially. constant pres sure by employing a motor controlled by the gas pressure, thus reducing the expense and enabling the installation of the apparatus in a smaller space, and also doing -a\ vay with the water seal and other features "of a gasoincter which require attention and are liable to cause trouble.

My invention also has for its object to provide a power-driven feeding apparatus in which the power is supplied independently of the gas pressure, but. the movement is controlled by said pressure.

Another objectof my invention is to control the feeding apparatus by both a positive stop and a friction brake, the positive.

bbject to prov ide stop being removed before the friction brake is removed upon starting the motor, and conversely the friction brake being applied before the positive stop is applied upon stopping the motor.

Another object of my invention is to provide a means for stopping the feeding apparatus incase for any reasonthe gas pres sure falls below a predetermined amount, which condition is liable to arise either when the carbid entirely runs ,out of the hopper or the gas escapes on account of the disruption of some part.

Referring more particularly to the dre w ings, Figure 1 is an elevation of my appsratus partly insect-ion. Fig. 2 is another form of oneportion'thereof. Fig. it is a section on the line X-X Fig. 2.

' Referring more particularly to the draw-' ings, A is the hopper inwhich the carbid is contained, the some being hermeticell sealed after the carbid' is placed therein. is the tank containing the water G into which the cerbid falls. The hopper A is provided with a flanged) at its bottom, over which is revolved a scraper having wings E pivoted. at c to a revolving shaft l supported in a bearing G. This shsft carries a bevel pinion H which meshes with a bevel pinion I mounted on the shaft J. This shaft is driven by' a gear K meshing with a gear L upon the drum M, on which is won d the cable N passing through blocks 0 1 .Q are Weights connected to the pulley O and tending to'ceiise the cable N to unwind from the drum M and thus cause it and the gears L-K and shaft J to revolve, thus causing the shaft F and scraper wings E to revolve. The cable N is Wound up by the crank M.

Secured to the shaft J is a gear R, which, through a train of gears loosely mounted upon the shaft J and the shaft S, causes a brake disk T to revolve. Against one face of the disk T is a shoe U, which is pressed against the disk by a'spring V. This brake is controlled by a bell crank \V, which is connected by a link X to a diaphragm Y, upon which rests a weight Z. The chamber beneath the diaphragm is connected by a pipe (1. to the interior of the tank B, so that. the pressure within the tank 13 is exerted upon the under side of the piston Y. A dis charge pipe 6 leads to the burners to be supplied. Connected to the bell crank W is a double acting stop 0 having two shoulders 0"0 which engage notches d in the brakedisk T. The-left hand projection c of the stop 0 enters one of these notches a! when the pressure becomes abnormally large, so that it is desirable to stop the mechanism and thereby stop the further feeding'and further generation of gas, as for instance when the burners are all-closed. The right hand projection c on the stop 0 enters one of the recesses at when the pressure becomes abnormally low, as for instance upon the fail ure of the carbid or upon the disruption of some part of theapparatus, the diaphragm .Y becoming depressed under such circum stancesuntil the stop 0 is pulled to the extreme positidndn the left. In either case the a ceding"mechanism is brought to a standstill undcrconditions such that further feeding is undesirable.

A hood H protects the gears HI, from the carbid in the hopper A.

The operation is as follows: Carbid 'of any size that willpass to the scraper wings E is placed in the hopper A and the hopper closed in the ordinary manner. If enough carbid does not fall into the tank to generate pressure sufficient to raise the diaphragm Y so as to release the shoulder a of the catch 0 from the stop Wheel T, the lever WV is moved by hand until such release-takes place. The

abutment a and the friction brake U :is applied, and under certain conditions untilthe stop shoulder 0 engages a recess cl on the disk T. If the pressure falls the shoul der 0 is withdrawn and the apparatus starts up. the pressure falls abnormally the shoulder c is brought into engagement with a recess 0! stopping the mechanism underthis condition also until the cause of the abnormal fall is removed. The machine is thus always under control, and the control is automatic, being dependent upon the pressure of ther enerated gas within the generating chamber.

Another form of certain portions of the feeding apparatusis shown in Figs. 2 and 3. In this form E are the wings of the scraper which cause carbid to fall from a rest D into the tank. The scraper is driven by gears H I through a shaft J corresponding to the shaft of Fig. 1. While such an arrangement can be substituted for the hopper and scraper of Fig. 1, the construc tion of Fig. 1 is preferable in that the carbid is more largely confined to the hopper and is thus. less subject to hygroscopic action.

What. I claim is:

1. In a carbid generator, the combination of a feed mechanism having a revolving member, an independently driven motive device for actuating said member, a brake disk, a spring-pressed friction brake tending to bear thereon, a positive stop adapted to engage a moving portion of the motive device and having a lost motion connection with said friction brake, said brake and said stop constituting checking means, and a movable wall subjected to varying pressure of gas generated by the generator and operatively connected to one of said checking means.

9.. In a carbid generator, the combination of a feed mechanism having a revolving member, an independently driven motive device for actuating said member, a brake disk, a spring-pressed friction brake tending to bear thereon, a positive stop adapted to engage a moving portion of the motive device when abnormally moved in one direction upon an abnormal fall in pressure and having a lost motion connection with said friction brake said brake and said slop constituting checking means, and a movable wall subjected to varying pressure of gas generated by the generator and operatively connected to one of said checking means.

3. In a carbid generator, the combination of a feed mechanism having a revolving member, an independently driven motive device for actuating said member, a brake disk, a spring-pressed friction brake tending to bear thereon, a positive stop adapted to engage a moving portion of the motive device when abnormally moved in one direction upon an abnormal rise in rcssure and hav; ng a lost motion connection with said friction brake, said brake and said stop constituting checking means, and a movable wall subjected to varyingpressure of gas generated by the generator and opcratively connected to one of said checking means.

4-. In a carbid generator, the combination of a feed mechanism having a revolving member, an independently driven motive device ior actuating said member, a brake disk, a spring-pressed friction brake tending to bear thereon, a positive stop adapted to cngage a moving portion of the motive device when abnormally moved incither direction upon abnormal pressures and having a lost motion connection with said friction brake, said brake and said stop constituting checking means, and a movable \vall subjected to varying pressure of gas generated by the generator and operatively connected to one of said checking means.

. NELSON GOODYEAR.

Witnesses:

.A. Monronn,

H. B. Bnowivnmh

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