US398299A - whitcomb - Google Patents

Description

(No Model.)

l E.. W. WHITGOMB. LUBRIICATOR POR MINING MACHINES.

Patented Peb. 19, 1889.

rif-msgs A trice.

Armar EDWIN W. WHITCOMB, OF CHICAGO, ILLINOIS, ASSIGNOR TO- GEORGE D. VVHITCOMB, OF SAME PLACE.

SPECIFICATION forming part'of Letters Patent No. 398,299, dated February 19, 1889. Application filed August 29, 1888 Serial No. 284,085. (No model.)

To. all whom it may conccrml Be it known that I, EDWIN W. WinrooMn,

a citizen of the United States, residing` at Chicago, in t-he county of Cook and State of Illinois, have invented a certain new and usefullmprovement in Lubricators tor Mining- Machines, which` is fully set forth in the follubricatorgfFig. 3, a sectional. view the-`l same, taken 'on the line'l 1 of Fig. 2; and Fig. 4, a sectionallview taken on the line 2 2 of Fig. 2,

Like letters refer figures of the drawings.

My invention relates to lubricators for mining-machines, and is adapted more particularly for use in connection with mining-ma-` chines of the character set forth in Letters Patent No. 335,328, granted February 2, 1886, to George D. iVhitcomb.

The object of my present invention'is to provide an automatic lubricator for furnishing a suitable lubricant to the pivoted cup mounted in the arm of theslide-valve of said machine and engaging with the cam-wheclof the valvemotor.

I will now proceed to describe a construc-` tion -in which I have practically carried out my invention in one form, and will then particularly point out in the claims those features which I deem to be new and desire to protect by Letters Patent.

In the drawings l have shown only so unich of the machine as is necessary to illustrate the con nc'ction ot' the lubricator therewith and its mode oi' iipcmtion.l

-A represents a portion of the air-chest, and B the valve llicreimprovided with the arm (I, and the slotted cup /',pi\'oted therein.' An oil passagiA or duel,y f", extends from the top of lubnicator.

to'like parts in all the wheel d and with the eccentric piston (l. D2 represents the reciprocating gate or valve of the valve-motor. All these parts are constructed substaiitially as in thc Letters Patent above referrred to, and therefore need no extended description here.

Mounted on iop ot' the valve-motor casing D is a plate, E, which forms the base of the Upon this base is mounted an Oil-chamber, F, which contains the supply of Oil or other lubricant employed. Withinthis chamber there is arranged a snugly-itting piston, F free to more therein. The upper end of the chamber is closed by means of a suitable cap or screw-bolt, j', which may be remevedwhenit is desired to rcmovo the pis ton F and reill the chamber. An air duct or passage, j", leads from the air-space a within the valve-chest and valve-casing to the interior of the chamber F, opening into the.A same at a point near the top thereof' and above thel piston F.

G represents a rib or bodyot metalformed upon the top of the base E. Through this rib there vis bored near the front a vertical hole, Il, which forms a pump chamber or cylinder, it beingI closed at the top by means of a screw-plug, l1, or other suitable device.

H represents a piston fitting snugly and reciprocating within t-he pump-cylinder 1I, it being provided with a stem or rod,h, which extends downward and rests upon the top of the gate or valve D2. An oil duct or passage, i', leads from the lower end ofthe oil-chamber F to the pump-chamber lL, opening into this latter at a point just above the piston when said pist-on is in its lowest position. 'A portion of this duct or passage i is vertical,

, as shown in Fig-3, and is provided with a valve-seat, t', at its upper end, tapering or conical in form, as shown, to correspond with the correspondingly tapered or conical end of a screw-valve, I.

J indicates a downward extension or rib formed on the base E and terminating immediately above the end ofthe arm C, as shown in Fictl. Aductor iassacc ',extcndsfromthe the arm (i through ioihccup c. D represents 'op oil thc pump-chamber ll diagonally and .the valve-motor casing, in which is mounted the motor-shaft 1)', provided with the canitension J, terminating at thc lower end of roo 'unen vertically downward tothe bottom of the the same at a pointv immediately abi''ithe lows: The chamber F ,being` supplied With'oil and the. mining-.machine being in operation,

' the compressed air passes from the-air-spac'e wheel D to lubricate this latter.

5o Having thus described my invcniion,ivhatl l a upward through theduct or passage f and exerts its pressure upon theupp'ersurface of v the pistonF. This pressure causes'the pis` ton vto force the oil through thdii'or 'pa'ssage i into the pump-chamber H, thus filling" the same. The amount of oil delivered to the pump-chamber may be regulated by adj ust-l ing the, valve I nearer` to' or farther *from the.'

valve-seat il', or the supply of o il may be entirely cut 0E, when desired, by closing said valvekr' yThe reciprocation of the gate D2 imparts' to the piston Hfareciprocating motion, which at each upward stroke forcesA the oil contained in the pump-chamber H into and through the duct or passage j. The oil is thus delivered on top of the end of the arm Gand into the oil-passage c', through whichjt passes downward and serves to lubricaie the cup c. The extension J serves to prevent the arm C from rising, and thus disengaging itself from the-cam-wheel, and in case the said arm rises suiaciently to come in contactl'with the extensiOnJ the surfaces thus broughtinto contact will be thoroughly'luhricated andl friction or binding WillV he prevented. The oil notonly lubricates the upper surface of the cup c, but it also lWorks downward around the same and-lubricates the sides thereof, and a sufficient quantity will fall upon the cam- ]y means of the apparatus I amtherefore enabled to obtain a constant and automatic supply of oil for the parts to be lubricated, the quantity vfurnished being 'capable of tht` nicest regulation.

It is obvious'fthat various modifications in the details of construction and arrangement of parts may be made without departing from the principle of my invention, and I therefore do not wish to be understood as limiting myself strictlyto the precise details hcreinbc fore' described, and shown in the drawings.

claim as' new', Patent, is-.

1. The combination, with the valve and valve-motor of a pneumatic mining-machine, `of a lubricator provided with an oil-chamber having a piston located therein, and with an airduct or passage to supply llcompressed air and ldesiret secure by Letters' ,Sagethroughwhich the oil is discharged, substantially as and for the purposes specified.

.2; The" combination, with the valve and valve-motor of a mining-machine, of a' lubricator provider] with an oil-chamber having a from the valve-chestto said chamber on one valve-motor, an oil-duct leading from the oilchamber to said pump, anda second oil-duct leading from the pump to the point of connection between the valve and valve-motor, substantially as and for the purposes specified.

3. The combination, with the valve and an oilfehamber having a piston arranged therein, a lduct to admit compressed air to one side-of said piston, a pump actuated by the valve-motor, an oil-duct leading from the oilchamber to said pump, a valve arranged in said oil-duct to control the passageof the oil, and a second oil-duct leading from the pump to thepoint of discharge, substantially as and for thepurposes speciiied.

I 4. .The -"eombination, with the valve and valve-motor,vi the latter provided with the vertically-recipfrocati ng gate D2, of the lubricator provided' with a pump-chaniber, Il, a piston, H', arranged insaid chamber and having its rod Aor stem hf resting' on the gate D2, an oilchamber, F, avingpiston", an air-passage, ff, for admi? 'ng air above said piston, and suitable due s orpassages leading from the pump-chamber and Afrom the pump-chamber to the pointof discharge, substantially as and for the purposcsspeciied. Y

EARRIF. FEIGEL, IRVINE MILLER.

to operate ,said piston, and an oil duct or pas.

piston arranged therein, an air-duct leading.

valve-motor, of the lubricator provided with' oil-chamber -fbelow the piston .therein to the 65 'side ot the piston, a pump actuated by the

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