US691556A - Rock-drill. - Google Patents

Description

No. 691,556. Patented Jan. 2i, 1902.

. H. LEINEWEBEBQ BUCK nmu.

'(Applicatbn filed. May 27, 1901.)

(N5 Model.) 1

No. Q9L556; Patented Jan. 2|, I902.

H. LEINEWEB ER. ROCK DRILL.

I (Application filed May 27, 1901.) (No Model.) 7 $heets-Sheet 2.

- No. 691,556. Patented Ian. 2|, I902.

H. LEINEWEBER.

BUCK DRILL.

(Application filed May 27, 1901.)

(1% Model.)

7 Sheets-Shea! 3.

Patented J an. 2|, I902.

H. LEINEWEBER.

. ROGKDRILL. (Appli cation filed May 27, 1901.

7 Shani-Shag: 4.

(No Model.)

H.. LEINEWEBEB.

BUCK DRILL.

N 0 M 0 d e I 7 8h aaaaaaaaaa s.

qlumugg i Patented Jan. 2|, I902.

N0. 69|,556. Patented Jan. 2|, 1902.

H. LEIN EWEBER. ROCK DRILL.

(Application filed May 27, 1901.)

(No Model.) 7 Shams-Sheet 6.

' 30 tion taken on line 6 in Figs'l and Fig. 7,

5 on line 8 in Fig. 2; Fig. 9,2. section-on line 9 50 shown in Fig. 5.

' NITED fS'rAT-Es m A LABLE copy PATENT, OFFIQE.

'.HERM'AN nrnnwnpna; or- CHICAGO, ILLINODIIS, ASSIGNOR 'r'o f1. inn- L PNEUMA'IIIO ToonootrPANY, A conroRA'rIon. on lLLlNOIS.

R OCK- umLL.

smolsloerxozr forming part; r Letters iatent no. 591,556, dated d'anuary 21, 1902 vApplicatlmi filed May d7, 19 0l 1'0 ad whom it may concern:

V Be it known that-I, HERMAN LEINEWEBER,

a citizen of theUnitedStates, residing at'Chi cago, in the county of Cook; andState of .Illi

5 nois, have invented a new and useful Rock- Drill, of which the following is a specification;

My invention relates to improvements in lfluid-actuated drills generally, and-more especially in pneumatic rock-drills.

:0 My object is to. provide .a drilling implement of a comparatively simple and generaliyimprovedfconstruction for use more especially in mining and wherein the motive fluid besides operating thedrill-h'a'mmer-also In the drawings, in which my invention is applied toapneumatic rock-drill for use in mines,Figure. l is a broken side elevation of the device mounted upon a support, which is shown in section; Fig. 2, an enlarged broken and longitudinal section of the rear end portion of the device, showing a rotary engine or motorfor turning the drill; Fig. 3, an enlarged brokenandlongitudinal section of the deviceat its support on line 3 in Fig.4; Fig. 4, a broken section taken on line tin Figs. 1 and 3; Fig. 5, an enlarged. broken andlon' gitndinal section of the forward or pneumaticham 1ner-port ion o'fth device; Fig. 6, a seean enlarged perspective view of a slide-valve forming part of.the'constrnction of the pneumatic hammer; Fig. 8, asectional rear end view of the device, the section being taken I in Figs. 1, 2, and 10; Fig. 10, a section taken on the irregular li ne 10 10in Fig. 8;' Fig. 11,

a section taken o'n'line 11 in Figs. 1, 2, and i0; and Fig. 12, a vie w the same as Fig. 11,

4 0 but withparts removed and other parts shown in broken section.

A -is a tubular casing containing the pneumatic-hammer mechanism and provided in it's forward end with a drill-receiving chuck a.

5 The casingAis upon the end of a shat'tB andis, in efiect,a part thereof. The shaft carries a bushing b,- which fits in the end portion of the casing, the bushing being fastened to the shaft by means ot'v a cross-pin b, as

A pin 1) passes through the casing, bushing, and shaft to fasten them sodogs 0''. x5 furnishes power to turn and feed-the drill.

Serialll'o. 52.120. (No model.)

curely' together. Loosely surrounding the shaft B is 'athreaded sleeve or'feed-screw B,

fitting at one end loosely into an annular socket b in the rear end of the casing A and 551 provided at its-rear end with a clutch member Bin the form of a ratchet-wheel. (See -Fig. 11;) -'On the shaft 13 is'a disk (2, fastened rigidly tothe shaft by means of set-screws c, Fig. 12; The disk 0 has an annular ilange oo 0 extending over the ratchet B andfintegral with the disk and extending inward from the flange at diametrically oppositesides are COKed bosses C; presenting radial guide-open- 030 are ratchet-engaging plungers o'r-dogs having heads '01, formed with ratchet-engagjug teeth or projections d, the heads being upon the ends of shanks or stems'd movable in the guide-openings c. Extending trans- 7o versely across the openings 0'' are pins 0 and confined between the pins 0 and heads (1 are springs (i which tend normally to press the dogs (J into engagement with the ratchet B The operation of the dogs and ratchet is like that of a friction-clutch, and, in eifect, they constitute 'a friction-clutch as the parts turn in the direction of the arrows in 11.

D is the casing of a rotary pneumatic engine or motor formed with central bearings ,e e', Fig. 2, for the rear end of the'shaft B.

In the casing'D is a chamber D, closed at its -forward side by a disk or cylinder head D Extending longitudinally and centrally through the shaft Bis an opening'or passage B, which reachesfr'om the rear end nearly to the forward end of the shaft, where it turns outward through the side of the shaft and' bushing b to produce the opening B, On p the rear wall or end of the'casing D-is aboss 0 D and extending into one side thereof is a. cored passage f, leading to cored passages f f Interposed in the passages f f are valves 9 g, respectively, working through stnfifingboxes g g, respectively, and having handles 5' g 9. respectively. The passage f leads to and registers with the end of the passage B in the shaft 13. The passage f leads to branch passages f ff, Fig. 10. Coupled to the boss D at the opening or passage f is a zoo compressed-air-supplying hose Y. The circumferential wall of the chamber D forms an annular bearing-surface h, and the bearfrom eachother in the wheel are radial recesses k, in which are'placed radially-slidin g blades or wings k of angular shape, as best shown in Fig; 2. These radially sliding blades are of .a width corresponding to the width of the arm ular groove is, and their inner ends are reduced, as shown. The casingD is formedat diametrically opposite sides with projections or ears D, Fig. 8, with openings between them through the circumferential wall of. the casing. Fitting into these openings are tending cam-surfaces B1 cam-blocks F F, fastened in place by means of pins 1'. On the inner faces of the blocks F F are inwardly-projecting parts l, which extend into and conform in cross section' to the groove 70 of the wheel E, and they present along opposite end portionslongitud inally-ex- The central boss h is cut away opposite the cams Z 1 as shown in Fig. 9, to present recesses h the base-lines of whichconform to and are parallel with the lines of the cams Z 1 Extending through the blocks F F at their cam-surfaces Z are air-inlet ports m, and extending through the blocks at their cam-surfaces Z are exhaustports 17.. The ports m communicate with the air-supply passages f f, and the-ports n lead to the outside air.. The projections Z form stationary abutments in the groove or recess 70, and the cams P1 and wall it form the outer guide-surface along which the wings it? move and against which they are held by centrifu gal force to slide. Air entering through the ports m to the groove 70 in the wheel bears against the wings k and forces the wheel and shaft B around. When the .wings reach the cam surface Z and surfaces h, they are guided radially inward, permitting the air to escape through the outlet-ports at. As thewings pass the abutments they slide outward along the cam-surfaces Z past the inlet-ports m, and are propelled forward by the air entering at said inlets. The cam-blocks F are removable to give access to the interior of the motor-chamber, and they may be replaced by new blocks at little expense in the event that their cam-surfaces become worn. The wheel E and shaft B are rotated continuously while the air-pres'sureis on, and this air-pressu re maybe regulated or entirely shut olf by tu rning the valve 9'. Inthe casin g A is pneumatic-ham mer mechanism of a construction similar-in the main to that shown in Letters Patent of the United States No. 662,675, granted November 27, 1900, to George Lei'ninger and myself jointly.

The casing A contains a cylindrical chamber divided by a partition p intotwo compartments 11 11 In the compartment p is a piston q, and in the compartmentp is a combiued. piston and ham mer-head q. The pistons are connected by a stem g passing through a guide-opening in the center of the partition. opening in which works a slide valve 1 In the ends of thevalve r are recesses 'r' 1', re-

Also in the partition 'is a guidespectively, and in the opposite .side of the valve are longitudinally -\extending groovesr 0 Cored in the shell A is an air-supply passage 8, communicating with the end B of the passage B an'd provided in its oppositeend with closely-adjacent ports 3 s which pass through the edge of the partition 19 to the guide-opening in which the slide-valve '1' works. Extending from the outside of the casing through the partition 1) to the said guide-opening is a vet: t-passage 'i, registering with the groover of the slide-valve. Also passing'thr'ough the partition'from the outer side of the shell to the said guide-openingis a spring-pressed pin t',w-hich engages the groove 7" in the slide-valve to prevent the latters turning. Air to operate the pneumatic hammer enters through the passages f, B and s and is controlled by the valve g. 111 the shell Aarethe exhaust-ports v, 'v', c ,an d v located as shown. When the parts are in the position shown in Fig. 5, the slide-valve 'r closes the port 8' and opens the port s whereby the air enters to the compartmentp against the piston q-, and forces said piston or-hammer'forward. As the sai'd'piston nears the end of its stroke the piston q engages the valve r and slides it until it closes the port 3? and opens the port s' The action of the pistons is then reversed. While the pistons are being forced in the forward direction, air is vented from the compartment 19 through the ports 12 while air is vented from the compartment p through the groove 1- in the valveand port t. In the reverse movement of the pistons air from the compartmentzo is vented through the groove r and passage t, and the air in the compartment 29 infront of the piston is vented through the port 0. When the piston is forced forward to the end of its stroke, the compressed air behind the piston q vents through the opening 22 while at the end of the retnrnstroke the compressed air behind the piston q vents through the port the hammer strikes.

'0 In the chuck a is a drill X, against which.

may be provided. In the construction illustrated in Fig. 1 the support-cemp'rises a pair of standards G, one only being 'shown-,--the standards being provided at their lower ends with jacks G, whereby they may be tightened in place. Adjustable up and down upon the standards is a shaft or cross-bar G H is a bearing block or collar, and formed integral therewith is a split collar H, which may surround the shaft Gahd be fastened thereto in any adjusted position by meansot' the'tightening-screw H The collar. H may be turned to any angle or position-upon the shaft Cl and tightened when adjusted. Best.-

ing upon the collar H is a supporting-head I,- provided with a downwardly-extending shaft .I, passing through the bearing-collar H.

On the vertical shaft 1, atthe under side of the collar H, is a bracket-arm K, held in place upon the shaftl by nuts 1 -'Phea bracket-arm K has a smooth upper face, with guide-flanges K at opposite sides. The casiing D is'formed at itsjunder sidewith an an: gular or dovetail socket D to fit over the guide-flanges K and slide thereon. "Extending through the head I is a smooth opening 1 for the feed-screw B to pass through; In

opposite sides of the head 1 are slots 'lfto receive laterally-sliding sectional nuts 1 to engage the feed-screw: iassingtransversely through the head-I is a shaft 1, provided to ward opposite ends, respectively, with right and left hand screw-threads to engage'thread-v ed openings in the said sectional nuts.

a'pin'l", whereby the shaft may be rotated,- but is held against longitudinalmovement. The sectionalnuts- I are shaped to engage and-. ,release, the feed-screw B. On the shaft 1 is a handle 1., which when turned to the stop 1 in Fig. 1 moves the sectional nuts into engagement with the feed-screw B 'andwhen turned to the stop 1 moves the dogs 'out of engagement with the said feed-screw.'

said, in adjusted position by means of the desired angle;

screw H The shaft 1, passing through the collar Il', forms a swivel connection whereby the drill and bracket K may be turned to any The valve g may be opened far enough toadmit the desired amount of pressure to the hammer to cause the same to work with the speed and force desired. The

valve 9 may be opened far enough to admit the necessary amount of pressure to cause the rotary motor to turn the shaft B with' the speed and power desired. The operator will be able to j udgeof the powerandspeed heisgetting during the operation and manipulate the valves 9 g accordingly. The hammer device;

may be operated to produce impacts against the end of the drill X with great speed and force, and it will be a simple matter to regulate the turning of the drill in accordance with the character of the rock being operated upon. Tofeed the drill forward, the operator turns the handle 1 to the stop 1 causing the sectional nut'l to engage the feed-screw B.

. As before explained,.the feed-screw B is held to the shaft by the engagement of the spring- Mid-- way between ends the shaft 1 has anannular recess 1', into which projects the end of dogs C with the ratchet B .When the re 4 sist ance to the feed is greater thandesired, .;the dogs will wipe over the ratchet-teeth. -The springs d on the dogs are sufficiently-stiff to cause. the dogs to engage with desired forceth'e slanting sides of the ratchet-,teeth and "form frictionally-held feeding means, and

they wills'lide over the teethwhenever-thc resistanceto the feed is greater than desired.

Byleaving the sectional, nut 1 in engagement; with thefeed-screwahejfeed of the drill will be properly maintained by the chitchmechanis'm C B ,-and no-accidentto the ,mechan ism can happen by. reason of overcrowding'th'e feed.-. It win he understood that as the drill 7 is fed'forward the casing D inovesforward upon the guide-flanges K of the bracket-arm K. -When: thehole; has been madeby the .drill, the handle I may be turned back to the stop 11 to release the sectional nut 1 from the feed-screw, when the parts may bereadily slid on the bracket K to the initial position, (shown in Fig.1,) withdrawing thedrill from the hole.

Whenever it is desired to use the device as an anger alone, as in drilling throughsofb rockor material, the hammer may-be shut off and the turningand feeding mechanisms alone actuated. When desired, the rotary motor may. be thrown out of operation while the hammer is in operation.

While I prefer to construct-my improve-' mentsthroughout as shown and described, they may be variously modified in the matterof details without departing from the spirit of my invention as defined by the claims.

What I claim as new, and desireto secure by Letters Patent, is-- l In a rock-drill, the combination with a drill-holder of a fluid-pressure-act-uated hammering device on the drill-holder, and a fluidpressure-actuated rotary motor on the drillholder operating to turn and advance it.

2. In a rock-drill, the combination of a drillholding shaft, a fluid-pressurc-actuated drillhammering device on the shaft, a fluid-pressure-actuated rotary motor on the shaft operating to turn it, a feed-screw upon the shaft, and relatively stationary ,fced-screw-engaging means for advancing the rotary shaft. 3. Inarock-drill, the combination of adrill holding shaft, a fluid-pressure-actuated drillhammering device on the, shaft, a fi uid-pres-- sure-actuated rotary motor on. the shaft operating 'to'turn it, a feed-screw upon the shaft, a. friction-clutch between the feed-screw and shaft, and relatively stationary feed-screwengaging means for advancigg the rotating feed-screw and shaft.

4.- In a rock-d rill, the combination of-ashaft, a drill-holding casing on; the forward end ofthe shaft, fluid-pressure-actnated drill-hammening mechanism in said casing, a fluid-pressure-actuatedshaft-turning rotary motor on the rear end portion of the shaft, and shaftadvancing feed-screwmechanism between the I and 'estending into the groove of said wheel,

' motive-fluid inlet and outlet portsat opposite I snpport of a. drill-holding shaft, a fluid-prestsure-actuated drill-hammering device on the 5. In a rockdrill,the combination ofashaft,

the shaft, fiuid-pressure-actuated drill-hammering mechanismin said casing,a fluid-presfor advancing the; rotating shaft.

wheel fixe'dto'the shaft, a relatively stationin said wheel movable in sliding contact with g for. the drill-holder, and means for throwing the hammering mechanism into and out of a drill-holdingcasingbn the forward end of sure-actuated shaft-turning rotary motor on the rear end portion of the shaft, shaft-advancing feed-screw mechanism between the said casing and motor, and a fluid pressure-supply passage extendin glon gitudinall y through the shaft to said casing.

6. In a rock-drill, the combination with a forward end of the shaft, a casing on the opposite end portion of the shaft slidingly mounted on said support, a finid-pressure-actnated shaft-turning rotary motor in said casin g, and shaft engaging and releasing feed mechanism '7. In a rock-drilh'the combination with a drill-holding shaft of 'a shaft-turning rotary. motor comprising a. peripherally -'g'rooved ary chamberhav'inga cylindrical bearing-wall about the wheel, cams interposed in said wall ends of said'cams, and radially-sliding wings said bearing-wall andicams, substantially as dias'cribed.

8. In a drillingdevice, the combination of a drill-holder, -fluid-pressnre-actu ated drillhammeringmechanism thereon, separate fl'uid-pressnre-actuated rotating mechanism feeding means forthe drill-holder, and seps'trate fiuid-pressnre-cont-rolling means for the hammering and rotating mechanismswhereby they may becansed to 'operate together, or

either may be thrown out of operation independently of the other.

11. In a drilling device, the combination of a drill-holder, fluid-'pressure-actuated drillhammering mechanism thereon, separate fluid-pressni e-actuated rotating mechanismfor' the drill-holder, flnid-pressure-actnated feeding means for the drill-holder, and sepa-- rate controlling meansfor thehammering, rotating and feeding mechanisms, whereby either. may be thrown out of operation, substantially, as and for the purpose set forth.

12. Ina rock-drill, the combination witha drill-holding shaft of a shaft-turning rotary motor comprising a peripherally -'grooved wheel fixed to the shaft, a relatively stationary chamber having a cylindrical bearing-wall about the wheel, removable, and replaceable cam-blocks interposed in said wall and extending into the groove of said wheel, m otive- .-flnid inlet and outlet ports in the cam-blocks and radially-sliding wings in said wheel movable in sliding contact with said bearing-wall and cam-blocks, substantially as described.

13. In a rock-drill, the combination with a support of a drill-holding shaft, a fluid-pressure-actuated drill-hammering device on the forward end of the shaft, a casing on the opposite end portion of the shaft-slidingly mounted on.said support, a fiuid-pressureactuated shaft-turning rotary motor in said a casing, a feed-screw upon the shaft, a.frictionclutch between said shaft' and fecd-screw,

and feed-'screw-engaging means on the support for advancing the rotating feed-screw and shaft. I i

14. In a rock-drill, the combination with a suppor t'of a drill-holding shaft, a fluid-pressure-actuated drill-hammering device on the forward end of the shaft, a casing on the opposite end portion of the shaft slidingl'y mounted on said support, a fluid-pressure actuated shaft tnrning rotary motor in said casing, a feed-screw upon the shaft, a friction-clutch between said shaft andfeed-screw, and an adjustable feed-screw engaging and releasing sectional nut on' the support for advancing the rotating feed-screw and shaft,

-.subst antially as described.

HERMAN LEINEWEBER. I Inpi'esence of-.

ALBERT D. BAcox, D. W.-LEE.

Ice

Images