US394212A - saunders - Google Patents

Description

(No Model.) 4 Sheets-Sheet 1.

' W. L. SAUNDERS COMBINED DNILLING, GHANNELING, AND GADDING MACHINE. No. 894,212. latented .888.

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QNo Model.) 4 Sheets-Sheet 2.

W. L. SAUNDERS COMBINED DRILLING, GHANNELING, AND GADDING MACHINE.

No. 394,212. Patented Deo. 1l, 1888.A

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W @Erm @m1/Lewes (No Model.) 4 Sheets-Sheet 3.

W. L. SAUNDBRS GOMBINBD DRILLING, GHANNBLING, AND GADDING MACHINE.

No. 394,212. Patenyg Deo. 11, 1838 l .2 E: in

XD William L..Sauners l N- PETRS, Pbolovutllugrnphsr. Wainlnsm D12v 4 Sheets-Sheet 4.

(No Moden.)

W. L. SAUNDERS COMBINED DRILLING, GHANNELING, ANDGADDING MACHINE.

No. 394,212. Patented Dec. 1'1. 1888.

STATES PATENT Orricjn,

YVILLIAM L. SAFNDERS, OF NEV YORK, il. Y., ASSIGNOR TO THE NGERSOLL ROCK DRILL COMPANY, OF SAME PLA(E.

COMBINED DRILLING, CHANNELING AND @ADDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 394,212, dated December 11, 1888.

Application filed June 9, 1887. Serial No. 240,316. (No model.)

To all 107mm/ t muy concern: the caster-wheels are removed from the iioor Be it known that I, 'ILLIAM L. SAUNDERS, an d rendered inoperative, and the machine a citizen of the United States, residingI at New supported upon the ends of the legs them- York, in the county of N ew York, State of selves, or upon leg-pins, so as to have a solid 5 5 New York, have invented certain new and and firm bearing upon the floor of the quarry.

useful linprovements in a Combined Drilling, According to the prior state of the art two Channeling, and Gad 1ling Machine, of which i operations have been necessary to channel the followingI is a lescription. out a block of stone, a gadderbeing employed My invention consists in an improved mato put in a row of horizontal holes at the bot- 6o 1o chine for sinking round holes and cutting tom of the bench, and a chanucling-machine longitudinal channels in stone, it being being used to cut an open channel from adapted to perform both theprocesses known above, the mass of stelle inclosed between the in the art of stone-quarrying as channelchannel and the row of holes being' broken ing and gg-adding, the same organization out by wedges. Various other forms of ap- 15 being adapted for use as a gadder capable of paratus have been used for this purpose, inoperating in any position, and with slight cludingpereussionwdrills, with which a series modification and the substitution of a gang of non-communicating round holes were of drills fora single drill-steel it becomes a bored, the partitions between said holes bechanncling-machine-that is, one capable of ing broken down by a brooch, thus forming 7o 2o cutting a continuous open channel, also, in a channel. Rotating diamond drills were any desired position. also used for the saine purpose, also the chan- My improved machine comprises a reciproheling-machines of the kind previously recating directacting percussion rock drill ferred to. 'Up to the present time no other mamounted in a shell-piece, within which it is chine has been produced or method devised vertically adjusted by means of a feed-screw by which both voperations are satisfactorily in the ordinary manner. The shell is carried carried out. upon a pair of horizontal supports, preferably The details of construction, arrangement, tubular, which supports are centrally pivoted and operation of the various parts and eleupon a rod, br, or continuous screw, which ments of my apparatus will be hereinafter 8o no forms the axis of the drilling apparatus, the fully described, reference being had to the tubular supports and engine being radially accompanying drawings, in whichadjustable thereupon and adapted to be sup- Figure l is an elevation, partly in section, ported at any angle, from the horizontal to showing my combined channeling and gad the vertical, the axial support being also ding machine in position as a channeler, but 3 5 formed with a continuous screw-thread,which, with the machine raised and the caster-wheels being connected by suitable gearing with the down,in position to be moved in the direction carriage carrying the drilling-engine, affords of the work. Fig. t2 is an end View of the snpmeans by which the engine is moved laterports andlateral feeding mechanism, the relaally in eithendirectton along its supports tive position ofthe shell and enginebeingindi- 9o 4o when making an open cut or channel. The cated in dotted lines. Fig. 3 is an end view, extremities of the axes upon which the tu partly in section, looking in the direction of bular supports are mounted pass through the arrow, the engine and shell being removed. end pieces which carry extensible sleeved Figs. i and 5 are detail views of the pawlarms,- within which latter are adjustably sehead, showing the means for throwing the 45 cured the legs upon which the machine as pawls out of action to stop the rotation of the a whole is supported, and the legs themdrill-rod and piston when the machine is used selves are each provided at its extremity with as a channeler. Figs. 6, 7, and S are detail a caster-wheel, upon which the machine is views of the preferred form of caster-wheel and supported when not in operation, in order to supporting-leg. Fig. 9 is a side elevation of roo 5o facilitate its travel from place to place; but the machine in position to operate as a gadder. i

when in operation by a simple contrivance Fig. lO is a detail view showing a portion of the piston-rod, the chuck, and a drill-steel in position. Fig. 11 isY a section through the shell and chuck on the line 11 11 of Fig. 1. Fig. 12 is an elevation ot the drill-clamp, showing the drills in position. Fig. 13 is a drill, showing the cross-head upon which the clamp and drills are secured, together with a section of the chuck an d portion of the piston-rod, showing` the dowel extending from said crosshead thereinto. Fig. 1i is an enlarged detail showing a modified form of easter-wheel with portion ot' leg in position.

Similar letters denote like parts throughout.

The drilling-en gine A, which is a percussion rock-drill, steam or air driven, is mounted upon a shell, B, which latter is formed with grooves or ways b, within which the drillingengine is held and guided when moved by its feed-screw a, and in the lower portion of which also move wings C of the cross-head C, to which the drill-clamp D is secured by bolts d, the said shell B being almost iiat in form, so as to occupy as little place as possible, and being also extended downward a sufficient distance to hold and guide the cross-head at the lowest possible position throughout its entire stroke; but 1 sometimes construct the shell of less length, using a detachable extension secured to its lower portion, and upon which the drillclamp is guided and supported. The pistonrod a terminates in a chuck, E, within which the inner end of the dril -steel E', or the shank or dowel F, secured to the cross-head C', may be interchangeably secured by means of bolts e. The dowel F is of the same size as the inner ends of the drill-steel, and is a piece of steel or iron of smaller cross-section or weaker than the piston-rod, so that instead of the entire strain and risk of breakage being upon the piston-rod, as would be the case were the cross section secured directly thereto, the dowel, being weaker, will give way soonest and be bent or broken, thus preventing injury to the piston-rod, while the dowel itself, being usually only secured to the cross-head by a set screw orpin,f, can readily and quickly be replaced at any time.

The drill-clamp D is a piece of metal substantially oblong in form and large enough to contain a recess for the reception oi? the desired number of drills, (in the present instance three,) the drills being let in said recess with their ends abutting its top side, in which position they are secured by a set-screw, d. In the'ordinary course of wear the drills G willV become of uneven length; but by the insertion of a small strip of metal at the end or ends of the shorter ones their inequalities of lengthY will be overcome. rlhe drill-receiving recess in the clamp D maybe slightly deeper than the thickness of t-he drills, and the face of the cross-head C is formed with a slight projection, g, registering with said recess. Vhen the clamp is in position, its flat top side, e', will iit under and abut the under-cut porportion f of the cross-head, the projection g projecting into the recess and against the body of the drills G, in which position the parts are firmly secured together by clampbolts d, which -iit into the coinciding recess H, formed in both clamp and cross-head.

The pawl-head hot the drilling-engine contains the rifle-bar or other device, by means of which and the ratchet l and pawls rotary movement Ais imparted to the piston and drill-steel E at cach reciprocation thereof when drilling round holes. This movement cannot continue when the machine is operated as a channeler, and under those conditions the pawls 'i are held away. from the ratchet by means of screw stop-bolts `z, which extend through the pawl-head from its eXte- `rior, and can by a few turns of the wrench be driven in or out to withhold or release the pawls I, according to the work required of the machine. Springs J and bolts j are provided, the inner extremities of said springs bearing against the pawls I, but holding them in operative position when released by the stopbolts i.

The frame upon which my improved machine is supported and carried consists of two end pieces, K, each of which is provided with upper and lower parallel tubular bearings, k, within which move horizontal arms L, formed with or provided at their outer ends with tubular leg bearings or lsupports Z, within which are adj ustably secured the legs M, upon which the apparatus is carried, the legs themselves being vertically adjustable inA their supports and the arms L, to which said supports are attached, being horizontally and radially adjustable in. their bearings 76,(the latter feature being indicated in dotted lines in Fig. 1,) thus rend erin g the legs universally adjustable.

The leg bearin or supports Z are shown as rigidly attached to the arms L, and at such an angle as will slightly spread their lower eX- trenii'ties. 1t will be obvious, however, thatthis angle can be made greater or less according to circumstances, and, it' desired, the arm L and supports Z may be adj ustably connected. Between the end pieces, K, is supported a frame, consisting ot' a pair of tubular guides, N N, which are preferably plain metallic tubes, although they may be solid brass, attached in equidistant positions trom the center of yokes or heads yn n', formed or provided with hollow cylindrical proj eetions O, upon which the tubes are firmly iitted, and to which the heads are rigidly attached by means oi' longitudinal bolts m, passing through both heads, projections, and tubes, and uniting them into a strong and rigid frame, the tubes N being iirmly'held at their extremities Yboth by longitudinal pressure and the internal support of the proj eetions O upon the heads n yn.

The frameN N is pivotally attached to the end pieces, K, and at the same time supported thereon by means of a strong central longitudinal bar, J which passes through the axes of the yokes la n and through the centers of the end pieces, K, its extremity or extremities be- IOO IIO

6o support t'or the machine.

ing screw-threaded and provided with jamnuts j je, by loosening which the frame, together with the drilling-engine, can then be turned into any desired position, the extremes l beine' indicated in Fie's. l and ll and when in the desired position, by setting said jam-nuts the heads n a will be tirmly held between the end pieces, K, and further rotation ot' the frame N N will be eltectually prevei'lted. The nuts io n. n may,however, be separately provid ed with axial-supports, in which case the feed-screw J need not project therethrough, being' merely vsecured thereto.

The axial bar J is provided .with a screwthread extending the entire distance between fthe heads n n', which screw-thread carries an internally-sei'ew-threaded gear-wheel, P, in mesh with a g'ear-pinion, p, trom the axis ot .which extends a hand-lever, P. Upon the QO-tubular supports N is mounted a laterally moving' or sliding' carriage, (-2, to the outer side of which the shell ot' the drilling-engine, (indicated in dotted lines in Fig'. 2,) is secured by means of one or more suitable bolts, q, extend- *2 5 ing' therefrom. The carriage Q is formed with split bearings R R, adjustable for wear, and it is further formed with an arm, q', supporting the axis ot' the beveled pinion p. The split bearings being' adjustable, all undesirable lateral motion can he readily eliminated,

and in order to secure the drill in its desired position, in stead of two pairs of bolts, the lower bearing", R', is provided with an extended hand-screw, r, by means of which the bearing R can be lirmly clan'iped upon its support,

4o vided with caster-wheels S, which wheels are formed with or rigidly secured to their axles s, which are then placed in position in recesses T in the bifurcations referred to, where they `are held in position by transverse bolts t.

l Said axles are also drilled from one extremity nto their centers, internally screw-threaded, and each provided with a set-screw, U, and the caster-wheels themselves are drilled through to form one or more sets of holes, u, all ot' 5o them intersecting the axis and adapted to receive the leg-pins V, which are inserted when the machine is in operative position. By placing' a bar under projecting' axis s the leg' may be easily raised from the ground and said foot- `pin passed'through one or other ot' the sets of apertures in the caster-wheel, and when in position is firmly secured by means oi' the collar T and set-screw ll, thus readily and quickly converting' the rotating' into a solid As shown in Fig. 14, this arrangement may be moditied by forming' the leg-pins directly upon the lower extremity of the legs themselves, in which case the bifurcated caster-support is a separatelyin position by means of an adjustable collar,

7, or wedge YV", and the separate leg-pins are dispensed with.

In Fig. 9 the machine is shown with the frame and engine turned to a horizontal position, where it may be used 'for gadding or for cutting ahorizontal channel. ln this tig'ure the machine is shown as standing' upon its own feet-that is, resting upon the pointed extremities ofthe leg-bars lll-this being' a proposed modication, the caster-wheels, similar to those shown in Fig'. l-t, having' been ten'iporarily removed in order to lower the engine as much as possible. ln practice,however, the casters will always be in position, the leg-pins being' projected therethrough to a greater or less extent when the machine is in operation, in order to afford a solid and nonrotating support for the d rillin apparatus.

In operation when it is desired to drill what are known as round holes, whether horizontal, vertical, o1' at any intermediate angle, the machine is brought to position, traveling upon its caster-wheels, and on arriving' the ends are raised and the leg-pins inserted through the caster-wheels projecting to a greater or less extent, according to the inequalities ol thc ground, when they are tixed in position and altord a lirm and level bearing, The engine is then provided with an ordinary drill-steel, which clamped in the chuck, and round holes are drilled, the engine being' moved along its tubularsupports in the desired direction, after the completion ot' each hole, by means ot' the hand-crank 1?. When it is desired to use the machine as a channeler, it is brought to position as described, and a round hole is put down at each end otl the cut, which, under ordinary circuinstances, would be the length between the heads `11 n', a distance ol", say, ten feet. After the end holes have been drilled in position to torm the beginning and` end of the desired cut, or one hole has been pnt down at the desired distance from the terminatitm at the last cut, or from the end ol the bench, the drill-steel E is removed and the cross-head C and gang otl drills G substituted therefor, when by operating the hand-lever l, and continuously moving' the engine so equipped back and torth along' and above the space between the perpendicular terminals of the proposed channel, an open eut or channel is made, starting' Vfrom the end hole, or from the termination ofthe previous cut, and gradually covering' the entire distance, the gang of drills operating' at right angles with their support, precisely as when the round holes were put in, except that the bottom pawls are thrown out of action by means ot the stop-bolts z". In the cutting of a channel the cut made as long as the distance between the perpendicular extremities, the engine and drills being' fed downward at each end ot the cut, and then by moving the hand-lever P fast or slow, and according' to the nature ot" the material bein g operated upon, each horizontal cutis sunk to the de- ICO sired dep th and the operation continued until a completed channel is formed, having perpendicular boundaries and not slanting away from its apparent extremities, as is the casein all other channcling-machines, except when a separate cut is male for the purpose of straightening the ends of the channel, which must be done with the cutting-tools at an an.- gle from the perpendicular.

It will be obvious that various other changes and modifications may be made Without departing from the scope or nature of my invention, and therefore, although havin g described the same with particularity, I do not confine myself to the precise details shown and described.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

l. The combination, with the engine-supporting frame, of a carriage on said frame, a drilling-engine secured upon said carriage, an axial feed-screw upon Which said carriage is pivoted, an internally-scrciv-threaded gearwheel mounted upon said feed-screw and secured to the carriage, and a beveled gear-pinion, also mounted upon said carriage and engaging the gear-wheel and having a handcrank extending therefrom, substantially as described.

2. The combination of a pair of parallel tubes or bars, end pieces supporting and uniting said bars, a direct-acting percussion rockdrilling engine mounted upon said supports, a feed-screw passing through the axes of the end pieces, to which said supports aresecured, and end pieces Within which said feed-screw is immovably secured, substantially as described.

3. The combination, With suitable end supports, of the engine-supporting frame consisting of tubes N, heads n n', provided With projections litting into the said tubes, and the bolts passing therethrough, substantially as described.

4. The combination, With a frame adapted to carry a drilling-engine, of end supports formed with tubular bearings, laterally-extensible arms in said bearings, the extremities of said arms being formed into leg bearings or supports, and supporting-legs arranged to be adjustably secured therein, substantially as described.

5. The combination, with an engine-carrying frame, of end bearings to which said frame is pivotally connected, tubular supports attached to said end bearings, and laterally-extensible leg-supports fitting therein, substantially as described.

6. In a drill-carrying frame, caster-Wheels attached to each leg thereof, said Wheels being formed with a radial perforation, and a leg-'pin arranged to iit into and project through said perforation to support the drill-frame, substantially as described.

'7. In an engine-carrying frame, legs therefor formed with bifurcations at their lower extremities, a supporting-wheel for each leg, said Wheels being provided with axial perforations and having set-screws passing longitudinally through or into the axles thereof, and leg-pins arranged to pass through the said Wheels, and to be secured in any desired position by the said set-screws, substantially as described.

S. In a drilling-engine frame, the combination, with a supporting-leg having bifurcated lower extremity, of a supporting-Wheel therefor formed With. axial perforations extending therethrough, means for securing said axle in the bifurcated extremity of the supportingleg, a leg-pin arranged to be inserted in the aperture extending through the Wheel, and a set-screw for securing the inserted pin in position, substantially as described.

9. In a drilling-engine, the combination of a shell having internal guideways and extended downwardly belonT the travel or feed of the engine, a cross-head drill-clamp having faces traveling in said guideways, and a removable dowel or shank extending between the piston-rod and cross-head, substantially as described.

l0. In a drilling-engine, the combination of a'supporting-shell having guides for the engine, and a cross-head having faces moving in the guide Ways and secured to the engine bya removable doWel or shank, substantially as described.

ll. In a drilling-engine, the combination of a supporting-shell having guides for the engine and cross-head, a cross-head having faces moving in the guideways and secured to the piston by removable doWel or shank, and a drill-clamp arranged tov be secured to and form part of the cross-head, substantialbT as described.

12. In a drilling-engine, the combination, with a shell extending below the feed of the engine, of a cross-head drill-clamp supported and guided in said extended portion of the shell, and connections between the cross-head and piston-rod, consisting of a doWel or shank of less strength than the piston-rod, substantially as described.

In testimony whereof I hereto affix my signature in presence of two Witnesses.

VILLIAM L. SAUNDERS.

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