US1671751A - Governor for carbide gas generators - Google Patents

Description

May 29, 1928. 1,671,751

T. J. SULLIVAN GOVERNOR FOR CARBIDE GAS GENERATORS Filed Nov. 1926 2 Sheets-Sheet 1 May 29, 1928.

- T. J.'$ULLIVAN sovmmon FOR CARBIDE GAS GENERATORS Filed Nov. 10, 1926 2 Sheets-Sheet Zlmwntot T :Z' Julleivm awwmew Patented May 29, 1928.

v UNITED STATES Parana OFFICE.

moms J. SULLIVAN, roscnroosn, ALABAMA.

* Governor. ron CARBIDE assume-Arena Applicationfiled November 10, 11886; mum 7,484.

the costLof-productionof the generator while providing. av mechanism requiring frequent attention and repairs. To avoid these objectionsmysinventionl provides a ,simple driving druini adapted in be clutched to a crank shaft actuating the carbide feed, and controlling.theoperation of said shaft :by a cylinder and piston governor having a:

: valved bypass opened andclosed relative to. the gas .pressure within "the generator. Such a structure obviates the use ofall gearing and provides for the vdirect[driving of thefeed shaft from the, drum anda governor connection from said shaft freely operable when the gas pressure is ,below the maximum andadapted to be graduated in .operation. dependent upon such pressure. By the provision of. the by-pass connection ".having a pressurecontrol qvalvethe s eed of operation of thefeediis determined w ile the piston is held against movement when the required pressure of gas is, reached 80 that the operation of the feed is discontinued tio'nofthe piston within thecylinder.

a The invention has for an object to PI'O,

videa novel and improved construction in- Q adriving drum connected to said shaft together with acylindeixand piston overnor connected to saidshaftc and forme with a bypass having a valve controlled by the gas pressure of the generator. c a 1 p Another object of the invention is to pro-v vide A an improved construction by which the feed shaftis provided with a crank arm havingapitman extending therefrom to a cross head, and a controllingcylinder having a "piston connected to said head and also formed with a by-pass between its opposite ends controlled by a valve actuated through Chile gas pressure generator. a

A further object of the invention is to present a new construction of feeding means :ing idriving drum.

but left free for resumption upon ,a reduction 1 of pressure which would permit opera eluding a generatorhaving a feed shaft and.

including a shaft and driving druln therefor adapted to be rotated in one direction feed shaft when rotated in an oppositedirection to actuate said shaft, coinbined with means. for governing the rotation of sa d shaft controlled, by the gas pressure generator. a

-.()tl1er, and further objects and advantages of the invention will be hereinafter set forth .aand .the novel features thereof defined by thee-appended claims.

. I Ingthelacoolnpanying drawings:

. .iEigure 1 is a verticalseotion showing the invention applied tota generator; 1 1

.Figure 2 is a detail vertical section through .the by-pass.connection vand its cow trollingvalve's;

Figurefi isa top plan with portions oflthe goveruor sbl'OkQl aw y a lFugure ,4; is a plan of. the crank 00111160 tion atitheupper end of the feed shaft; and

iEig reb isabottomplan ofthe cooperatdiike reference numerals designate corresponding parts throughout the several figwas of {the drawings III-he applicat on of the invention shown, the numeral 1 10 designates a; carbide gas gen- .totension the drum and to be clutched to the erator which may be ofany desiredsize and construction, thisbeing provided with a feed hopper 11 and a feedrngdisk 12 suspended by a, tubular standard 13fro1n the top late 14: ofthegenerator. lExtendingthroug the standard 13 is: a feed shaft 15 a carrying at its lower end beneath the disk 12 oppositely disposed arms .16 between which a chain or other connection 17 is disposed so as to travel over the materialgupon-thedisk and feed a portion thereof to the generator in the rotation of the shaft 15. v a i The parts-so far described may 1 be of any carried by ithe under face of the driving drum 22 ;rotatably mounted for winding movement upon :thedisk 119:8(138 to form in desired construction as v the present invention relates to the driving of the shaft and its opposite movement a one-way clutch to drive the shaft 15 when the drum is rotated in a direction for that purpose. This drum is adapted to be tensioned any desired means such as a spring or we1ght,the latter form being shown as comprising a cable 23 secured to the drum and extending over a guide pulley 24 with an actuating weight 25 provided at its lower end. The drum is tensioned by rotating the same through the handle 26 so as to wind the cable thereon, and such movement imparts no power to the drive shaft through the travel of the pawl over the ratchet face, while an opposite movement of the drum through the weight member causes the pawl to engage a ratchet tooth and impart driving motion to the feed shaft.

The control of this feed shaft is effected by an improved construction of governor comprising a cylinder 27 having a piston 28 therein with itsrod 29 extended in opposite directions and provided with stops 30 to limit the extent of the piston travel. This cylinder is formed with a by-pass 31 cominunicating with its opposite ends beyond the limit of piston travel and provided with a cut-off valve 32 adjustable to close the by- "pass when the parts are not in operation. 30'

' erating upon a base 38 and having a pitinan 39 pivoted at 40 thereon and connected at its opposite end with the crank pin 18 extending between the plates 17 and 19. This provides a direct connection from the feed shaft to the governor so that the speedof rotation of said shaft will be controlled dependent upon the feed through the bypass which is graduated by the pressure within the generatoiy'and when this pressure reaches a maximum the by-pass is closed and the feed of carbide ceases.

In the normal operation of the machine the cut-off valve is opened and the control is purely through the pressure valve.

The top of the generator may be formed with the usual feed opening 41 closed by a cap 42 clamped in position by a screw 43 mounted in the bracket 44.

The operation of the invention will be apparent from the foregoing description from "which it will be seen that the shaft is directly driven from the drum under tension and the speed and continuation of its movement accurately controlled by a simple valve JtOllOWlllg claims.

operating in the. bypass communicating at opposite sides of the piston within the governor cylinder. In the normal operation of the feed shaft the fluid passes from end to end of the governor cylinder so as to balance the operation of the piston therein. When the gas pressure within the generator rises to a predetermined point its action upon the diaphragm tends to. close the controlling valve in the byi-pass to a greater or less extent and thereby limits the volume of iiuid which can pass troin end to end of the cylinder. A complete closing of this valve.

by the pressure within the generator'prevents further operation otthe piston within the cylinder as it maintains an equal fluid pressure at each side thereof and the operation of the feed is consequently stopped;

This provides a simple, ellicient and economically constructed means for feeding to a generator the material in the desired and necessary quantities to automatically maintain the pressure of gas necessary to supply the system with which it is connected.

. While the specific construction of the invention has been shown anddescribed, it is 7 not confined thereto as changes: and alterations may be madewithout departing from the spirit of the invention as defined by the Having thus described my invention, what 1 claim as new and desire to secure by Letters Patent is: I

1. A'governor for an acetylene generator comprising a feed shaft, a driving drum operatively connected to said shaft, a cylinder and piston governor connected to said shaft and provided with a by-pass communicating at opposite sides of the piston, and a valve controlling said by-pass and having means adapted for actuation -by the-gas pressure within the generator.

2. A governor for an acetylene generator comprising a feed shaft, a driving drum operativelyjconnected tosaid shaft, a cylinder and piston governor connected to said shaft and provided with a by-pass communicating at opposite sides otthe piston, a valve con trolling said bypass and having means adapted for actuation by the gas pressure within the generator, and a cut-off valve operating in said by-pass to prevent movement of the parts. a

3. A governor for an acetylene nerator comprising a feed shaft, a driving rum 0peratively connected to said shaft, a cylinder and piston governor connected to said shaft and provided with a by-pass communicating at opposite sides of the iston, a'controlling valve operating in sai by-pass and connected to a diaphragm ada ed to be exposed to the gas pressure wit in the genera- (or, and a spring for normally opening said valve.

4. A governor for an acetylene generator comprising a feed shaft, 0. driving drum operatively connected to said shaft, acylinder and piston overnor connected to said shaft and provi'ed with a b -pass communicating at opposite sides ot the piston, a valve controlling said by-pass and having means adapted for actuation by the gas pressure within the generator,a iston rod extending from said cylinder, an a pit-man connected with said rod and to a crank pin upon the feed shaft.

5. In a generator having a feed shaft, a crank member on said shaft, a governor connection from said member, a clutch disk on said member having a ratchet face a coopcrating driving drum having a pawl cooperating with said face, means for tensioning said drum by its rotation in a direct-ion opposite to its driving relation, a pitman extending from said crank pin,a cross head slidably mounted and connected to said governor connection, a governor comprising a necting the ends of the cylinder and having means actuated by the gas pressure of a generator for controlling the movement of said piston.

6. In a generator having a feed shaft, :1

crank member on said shaft, a overnor connection from said member, a c utch disk on said-member having aratchet face, a drivin drum having, a pawl cooperatin with sai face, means for tensioning said rum by its rotation in a direction opposite to a driving relation, a governor comprising acylinder and piston therein having its rod connected to said governor connection and means for controlling the movement of said piston relative to the gas pressure within the generator.

In testimonywhereof I aflix my signature.

, THOMAS J. SULLIVAN.

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