US1066901A - Rock-drill. - Google Patents

Description

UNITED STATES; PATENT onirica.

CHARLES C. HANSEN, 0F EASTON, PENNSYLVANIA, ASSIGNOR TojINGERSoLL-RAND COMPANY, 'oF NEW YORK, N. Y., A CORPORATIONOF NEW JERSEY;

CH-DRILL.

Be it known am 1,-;emnLES'e. 'nissan a citizen ofthe United.StateS,'and resident of Easton, 1n the `county-.fof Northampton and State ofsPennsylvania, have .invented a new and useful Improvement in Rock# oil reservoir being incom'niunication with the' pistonl chamber.

The object :of`v this 'finve'ntionjisinore parmonly exists between the cylinder guides 'at the bottom -o-f the cylinder asian oil reservoir'by extending -.a.bottom'for'the reservoir` between :said guides thereby 'not only utiliiingA the 'space lals vmentioned above butv represents' in longitudinal vertical seetionjso much -of-'a rockdrillc 'linderasj willrg'ive aclear `understanding o in-y invention. ,Fig-

2`is a cross section taken inthe'plane of the line A-A. of Figf 1'-',-Fig, 3 isadetailplanA view showing the separate flillingand ventv holes for the reservoir, 'and' F and 5 are detail longitudinal sections showing. modifiedf'forms of *the means for establish-` ing communicationvbetweenthe reservoir.

and the'piston chamber. l

. The cylinder denoted guides by" 2, .3, .andits lsupporting shell by 4. A horizontal partition vsextends longitudinally of the eylinderbetween the guides 2 and 3, Said-.partition forming' the bottom for an oil reservoir 6. Transverse partitions'7 and S Serve as front and back Walls respectively of the oil reservoir 6.

'of the piston 9 as the piston approaches the limits of its forward and backward strokes. A spring pressed valve .is preferably provided for normally closing this port 11t which valve may' be made in various forms.

For instance, in the form shown in Figs. 1 l' and 2.a cup-Shaped valve 13 is shoirn as Y Y specification pf Letters Pa-tent. vmamme-n md my 7,11911.

by 1 and Patented J nly 8, -1913.

Serial No. 637,277.

mountedin a plugr llsciewed into the'hottom v5 of the reservoir,- a spring 15 being provided. for holding the Val-ve 13fclosed.' ,he inner end of the plug Iltis preferably *j screwed into tight engagementwith, a vlng 16 `on the inner-cylinder wall, channels" 17 be-. ing provided for bringing'the"interior of thereservoir into communication with the l'port l1 when the valve is opened. IIL-Fig;

4 a spring pressed ball valve 1S is shown in-4 l. stead of the cup valve.13 shown in Fig. 1,.

In` Fig; 5 no valve is'shown .at all for this y port 11.

The meansn'forjfilling the'reseriv'oir shovn herelncomprises a filling hole 19 in the 4top of the cylinder ,at one-.sidel thereof, from "\vl1ich..flling hole .there lead independent filling and .ventpassages.. 20, 21, through the Walls of the cylinder to. the foil reservoir `6; A. screw plug 2Q serves'as a closure-fe.-

the lillinghole 19. In filling the reservoir 6, the oilis poured into the hole 19 andthe oil will flow through one of the passages,

yinto the reserif'oir while the air from the reservoir will escape. thi-onglLt-.heother passage. VA AS the rock drill is operated, .a slight amount of oil will -be.permitted to escape from the. reservoir intothe piston chamber as'the piston9-nncoi'iers the port 11. 'here 'a valve-isused,l the jar ofthe machine is suflicient to uncover the port l1 enough to allow-,the necessary oil to'pass into the pist0n Chamber. A The ease' with which this valve maybe opened by the .jar of themal'cliine,pcan be controlled by the tension of its closing spring.

It is evident that -various. changesmight beresorte'd to in theconstrnction and arrangement of fthe several parts witl-iont departing from the spiriti 'and scopeof. my iny vention; hence do not wish to limit -m'y- 'self Strictly to the striicturefherein .set forth, but

lVhat I claim is: Y A

I1.. A rock' drill cylinderhavinw therein a ivork piston7 .its Chamber1A ,an oi 'reservoir and a portgleading from the reserroirtothe piston chamber intopo'sition to be alternately opened to 'the'. opposite sides of the' piston as it reciprocates.

2. A' rock drill cylinder having therein a" work piston. its chamber, an oil reservoir.. :i pol-l loadingfrom 'the reservoir to the piston chamber into position te vhe .alternately opened to the opposite sides of the4 piston as it reciprocates and an automatic check valve for opening and closingv said port. 'y Y ,l

3'. A rock drill cylmderhaving therein a work piston,`its chamber, an oil reservoir, a port leading from the reservoir to the piston chamber Ainto position Vto be alternately opened to the oppos'itesides of the.

piston as it -reciprocates and an automatic check valve for opening' and closing said port, said check valve being opened andl `closed by "the jar due 'to -the operation of,

the drill. l

' 4. 'A rock drill cylinder, guides alng the bottom of the same, transverse vand longitudinal partitions connecting saidguides to form togetherv with thebottom wall of the cylinder and said guides, an voil reservoir, said cylinder` having therein a work piston,

its chamber, and a port leading from the. reservoir to the piston chamber in vposition to be'uncovered by the piston asitrecipreservoir thereinatfits bottom, between its guides, a port leading .through the top wall 5. A rock drill cylinder, guidesalong the bottom of the same, transverse and longitudinal partitions v--c'onnecting Said guides 5to form, together with the bottom'wall of theA cylinder and said guides,l an oil reservoir,-

said cylinder having therein, a work piston,

its chamber, a port leading from the reservoir to. the piston chamber in positionV to Y beuncovered bythe piston as it reeiprocates,

and anautomatic check valve forpopening and .closing said port.

6. A rock drill cylinder, guidesalong the bottom of *the same, transverse and longitudinal partitions connecting said uides bo forni, together with the bottom wa l of the cylinder and said guides, an oil reservoir, said 'cylinder having thereina Work pistou, tsschamber, a port leading from the reservoir to thev piston chamber in position to be uncovered by the piston as it reciprocates',

and an automatic check valvel for opening and closing said port, said check valvepbeing opened and closed by the jar due to the operation of the drill.

7. AA rock drin Cylinder, guides along the same, said cylinder having therein a work, I

piston, its chamber, an -oil reservoirlocated at the bottom of the cylinder between said guides, a port leading from the reservoir to thepiston chamber, and an oil lllin hole in the cylinder havinga passage leadlng to the reservoir. v` Y 8. A rock. drill cylinder,gui'ies'alo'ngl the same, Isaid cylinder having therein a workv`plston, its'chamber, an o1l reservoir located at the bottom of the -cylinder between said the cylinder having separate passages leading Vto and from the reservoir.- g

glliideg'a port leading'from the;A reservoir to t e piston chamber, and an oil filling .holein 9.- A rock drin: cylinder having an @nass f ervoir therein locatedat its bottom between its guides, a port leading" thfrough the 'top wall of the reservoir-into thepistonchamber, a plug insertedthroughl the ,bottoml wall of the reservoir opposite said port and-a I valve for saidv gort carried 'by said plug.

l0. A rock rill cylinder having "an oil wall'thereof, saidplng having cl 1annels-or` y the reservoir into communication bringi with said port. 11. A rock ofthe reservoir-into the piston chamber,

drin e, under i having an 'e on' reservoir therein at 4 its bottom between its I guides, a port leading through the top wall Y a plug inserted through'the bottom wall of the reservoir linto contact with the topwallfl thereof, said plug having channels for bringing the reservoir into communication with '.Sald port, .anda valve forsaid port-carried by said plug.

In' testimony, that Iclaim the foregoing as my invention, I have signed my name in presence of` two witnesses, this vtwenty lninth day of June 191:1.

' CHARLES c.' HANSEN.

Witnesses A y F'. v(Silicium. BARRY, A C. S. SUNDGREN;

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