US698296A - Boiler-feeder. - Google Patents

Description

no. 693,296. Patented Apr. 22,1902;

H. G. LAncom. BOILER FEEDER.

(Application led May 15. 1901.) (-llo Model.) 2 Sheets--Sheet 2.

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PATENT 'HARRY' LARcoivnoF nnwrvorni, N.r

BollLER-FEEDER.

srncrnrcarrolvrermmg m of Leners Patent No. eeeeeedateanprnaa, reca? y' ff Application led May l5, 1901.

yThis invention relates foau apparatus for feeding boilersv in which the steam-pressure of the boiler is transmitted 'to the feeder andthe Waterv allowed tojfall byvg'ravityv into the boiler. Thisspecicationfis a specific description of one form'of my invention, while the claims vare definitions of the actual scopethereof.

. Reference is to be had tothe accompanying y zo . of the same.

The outer casing a' of the devicel has four branches, (designated vval, a2, a3, and a4, respectively,) these branches leading into the casing eachy by means of a number of openings c. According to the construction here shown each series of openings 0.5 iscomposed of four, openings. With the branchdcommunicates a pipe b, leading steamv from. the boiler. With the branch @communicates a vpipe c, leading feed-water from a vpump'of any sort, which pump is conventionallyfillustrated at d in Fig. l. From thelbranchu,3 leads a pipe e, carrying the feed-water to the boiler, and from the branch a4 leads apipe f, carrying the water-overliow back to the source of feed-water supply. The casing a is ta' pered, as indicated best in Fig. 2, and .within this casing revolubly fits a correspondinglytapered barrel g. 'This barrel has its largev 'end fit-ted with a screw-cap g','which closes the end of the barrel and which also carries a stud g2, passing through a stuffing-box in the end of the casing a andcarrying'iixedly a ratchet-wheel h. .Vith this ratchet-wheel 7L works a pawl 71,', carried on an elbow-lever Fig. L is an elevational view of the'` semina 60.330.A ons modem i axis of the stud g2. 'The elbow-lever h2 is rocked throughthe action of a lever hful-V crumed on anarm a, carried bythe casing- The lever h3 is'suitably connected with thel hthe fulcrum of which coincides with the pump el or with any other source of motion, so-

astoimpartarockingactiontotheleverland 6.o lthusimpartingastep-by-step'movementtothe 5 drive the pawl 72,- against theratehetfwheel h,

barrel g. This barrel, as bestshown in Figs'.

lSande, is provided .witha number yof-.pairs ofl .transversely-aimed openings g3. These` .j

ywith the number of openingsineachseriesa5 .f ofthe casing a, andi-here'fore'inthepresent'- --j 1 instance there are four pairs yof open'ingfsg?. v Each pair of openings ygiisin transversealine-,

pairs of openings e g3A ,correspond in number .ment with one opcningfofeach .series "of" of ythe casing a, asis gbestillus'trated'in' Figs. i2' and 3. Within the barrel g and tapered to 1f k.conform to thefshap'e `thereof is'an interior' barrel i, which is provided withY three'partil tions' 2l', dividing "the barrel into` fourY com-7 partments.y The larger end ofthe barrel is closed by the'cap g', and the smallerend of Y r' carried on the casing@ and pressed by a spring 4, by. means of which spring thev barrel f1, is

vthe barrel' is'closedby a cap r2v'vhic'l1-hasl 5, i a square stem a projected into aV chamber a',

held snugly engaged with the barrel g.A The barrel il is provided with four series of open'.`

ings '5.- The members of these series offopenf.A

ings are each arranged inflongitudinal alinementf, and the series of openings are disposed 'j i equi'distantaround.thecircumference.of the barrel. l

The parts beingy constructed andarranged i as shown and the pump being in operation', the barrel g will be driven with anin'termitv tent'turning:movementwithin 'the'\ca"sin `g.ct. By adjusting the connection between the parts h2 and h3 theniovement of the barrel gA i may be regulated. Referring now to Fig. 3,

it will be seen that the barrel g isin such p'O- si'tion asv will place the-pipes band e in com-j i :i munication with each other 'through one of 'l i the four compartments of the Vinterior barrel v i. Assuming that water is within thiscompartment of the barrel fi, the steam-pressure vof the boiler will be communicated to this compartment of the barrel i, and the water `will fiow by gravity intoA the `boiler through,y

the pipe e. The barrel g now continues its movement, and the openings g3, Which are shown in Fig. 3, will then be placed in communication with the openings a5, leading to the pipes c and f. The water from the pump will now iiow into the before-referred-to compartment of the barrel z` and fill this com partinent. The barrel g then continues its movement and returns to the position shown in Fig. 3, whereupon the above-described operation is repeated. This accounts for the operation which goes on Within one of the four compartmenfsoftheinteriorbarrel. Itshould be understood, of' course, that all of the other compartments are operating in the same Way in succession. This successive, and therefore practically continuous, action is brought about by the spiral disposition of the pairs of openings g3 in the barrel g. rlhese four pairs of openings are quartered around the barrel, and as the barrel moves in its action it brings each pair of openings rapidly into successive action. The desired height of the Water in the boiler may be regulated by the elevation of the feeder, and when the water in the bottom reaches an elevation equal to the elevation in the casing a, the feeding action will cease, since the feeder operates by force of' gravity, and the Water will not be forced into the boiler at an elevation higher than the elevation of the top side of the barrel t'. Should the boiler be full, the water will simply be forced by the pump from the pipe cinto the pipej" and back to the source.

Having thus described my invention, I claim as new and desire tosecure by Letters Patentl., Aboiler-f'eeder, comprising a casing having orifices respectively in communication with the feed-water supply, the boiler-supply and the boilersteam-pressu re, an orificed barrel arranged to turn in the casing and to command the orifices' thereof, and a stationary barrel arranged in the first-named barrel and orificed in conformity with the orifices in the casing.

2. A boiler-feeder, comprising a casing having orifices respectively in communication with the feed-Water supply, the boiler-supply, and the boilersteam-pressure, an orificed barrel arranged to turn in the casing, and a second orificed barrel stationary within the firstnamed barrel and having its orifices in conformity with the orifices in the casing, said second barrel having partitions forming it into separate compartments, for the purpose specified.

3. A boiler-feeder, haviuga casing adapted to communicate with the feed-Water supply, the boiler steam-pressure and the boiler-feed, a barrel arranged to turn in the casing and having orifices communicating alternately with the feed-water supply, the boiler-pressure and the boiler-feed, said barrel having the orifices therein arranged spirally around it for the purpose specified, and a second barrel held stationary Within the first barrel and having openings commanded by the moving barrel, such openings of the stationary barrel being respectively related with the feedwater supply, the boiler-supply and the boiler steam-pressure.

4. A boiler-feeder having a casing, adapted to communicate with the feed-Water supply, the boiler steam-pressure and the boiler-feed, a barrel arranged to turn in the casing, and having orifices communicating alternately with the feed-water supply, the boiler-pressure and the boiler-feed, said barrel having orifices therein arrangedv spirally around it for the purpose specified, and a second barrel held stationary Within the first barrel, and having openings covered and uncovered by the first barrel, such openings of. the second barrel being respectively related to the feed- Water supply, the boiler-supply and the boiler steam-pressure,and transverse partitions fastened in the second barrel and between the openings thereof.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

HARRY G. LARCOM.

Witnesses:

I. B. OWENS, D. C. LARCOM.

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