US1427982A

US1427982A - Rail-drilling device

Info

Publication number: US1427982A
Application number: US348002A
Authority: US
Inventors: Frederick A Tegeler
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-12-29
Filing date: 1919-12-29
Publication date: 1922-09-05
Anticipated expiration: 1939-09-05

Description

F. A. TEGELER.

RAIL DRILLING DEVICE. APPLICATION FILED use. 29,- I919.

Patentedsept. 5, 1922.

5 SHEETSSHEET l- F. A. TEGELER. RAIL DRILLING DEVICE. APPLICATION FILED DEC. 29, 19 49.

rmted spt, 5

s SHEETS-SHEET 2.

, F. A. TEGELER. RAIL omume nsvrcz'. APPLICATION FILED DEC. 29. 1919.

- PatentedSepf. 5, 1922.

5 SHEETS-SHEET 4.

F. A. TEGELER. RAIL DRILLING DEVICE- APPLICATION FILED 05c. 29. 1919.

Pat ented Sept. 5, 1922.

5 SHEETS-SHEET 5- vow-11851 Patented Sept. 5, 1922.

tii iffii i' iaz'zssz i ihlhihi i FREDERICK A; TEGELER, OTB LA; GRANGE, ILLINOIS,

RAIL-DRILLING nn'vron.

Application filed December 2.9, 1918. Serial No. 34 ,002.

new and useful. Improvement in a Rail- Drilling Device, of which the following is a description, reference being had to the accompanying drawings, which form a part of my specification.

My invention relates to a power drill more especially intended and adapted for drilling railroad rails and simultaneously providing the rails with a plurality of holes arranged at predetermined and uniform distances apart.

One object oi my invention is to provide a device 01 the character mentioned which is adapted to be transported along the rails, optionally, through the medium of its own power; and which at the same time is adapt edto be readilyremoved from the rails, when occasion requires, by a single operator and wheeled away from the track.

Another object of my invention is the provision oi a device wherein the drills may be readily disengaged from the rails and the drill mechanism or frame easily swung or moved into inoperative position and into more or less compact relation by a single operator and thereby enable the more convenient handling, transportation and storage of the device.

A further object of my invention is to provide improved means for suspending the drill mechanism beyond or rather to the outside of the rail, in orderythat the holes will be drilled from the outside of the rail, as is especially preferable when drilling for the purpose of bonding the track for a track circuit. A further object of the provision of improved means whereby the drills, per se, are held in place and the drills fed to the work; while at the same time providing a construction wherein the weight of the drill mechanism will be carried or suspended from the truck or supporting structure in such manner that the device may be I easily removed. from the track by a single operator; and further.- more, wherein the drill mechanism can be readily disconnected from the supporting structure or truck so as to permit the use of said truck as a light motor track-car.

The foregoing enumerated objects and adshown in place on a invention is the f the arrows.

' vantages, as well as other advantages, will be more fully comprehended from the followin detailed description ofth'e accompanying drawings, wherein Figure 1 is a side elevation of my improved device illustrated in and in drilling position.

Figure 2 is a side elevation of the same,

showing the drill mechanism or frame moved into inoperative position, ready to be removed i rom the track.

Figure 3 is a top plan on": my device, track and in drilling position.

Figure l is an. enlarged plan, partially in section, of the multiple hole drill mechanism and operating gears; with some of the drills shown disposed throughthe web of the frail, I t

Figure 5' is a partial side I and sectional elevation taken on the line 55 of Figure 4, looking in the direction of the arrows.

Figure 6 is a detail view of the power shaft coupling, illustrating the same in cou-- pled relation.

place on a track Figure 7 is a detail of the same'mechanism, partially in section; the view being substantially on the line 7-4 of Figure 6,.

looking in the direction of the arrows.

Figure 81s a similar view, except that the mechanism. or shaft coupler is shown in detached or non-coupled relation.

Figure 9 1s anend elevation of the same,

looking at the rigl'it hand side of Figure 6;

Figure 10 is a side elevation of the drill feed and clamping mechanism, illustrating same in drilladvanced and clamping position.- f i Figure 11 is a similar view illustrating the .mechanism in drill-retracting position.

, Figure '12 is. a similar view showing the mechanism incomplete drilLretracted and rail-releasing position. I I

Figure, 13 is a detail view-of portions of the clamping and feed levers.

. Figure 14: is a view taken on the line Lid-"-14 of Figure 8, looking in the direction Figure 15 is a detail sectional view. of clutch mechanism, employed in connection with the balance wheel. I o I Isn the particular 'exemplification of the invention, the device comprises asuitable truck which consists foi the main frame members QO, suitably spaced :apart and secured together'toreceive the main supporting wheels 21 'therebetween, whereby the truck may be transported along the rails. Secured to the main frame members 20 in. any suitable manner, and at opposite ends of the truck, are cross-memhers or bars 22, which are disposed transversely of the track and have their free or opposite ends provided with stub-axles 23 on which the small wheels 24: are rotatably mounted; the wheels traveling on the adjacent rail of the track. I

The main supporting wheels 21 are rotatably mounted on journals or axles secured in any suitable manner to the main frame members 20; Disposed beyond one side of the main frame are a pair of ground wheels 25 rotatably mounted on shaft 26 which is supported by the links or arms 27 secured at opposite ends of the main or truck frame. The links or arms 27, in turn, are pivotally secured to the main frame at 28 so as to adapt them to oscillate in a vertical direction, see Figures 1 and 2. The shaft 26 is also supported by means of link 29 which is pivotally secured at 30 to a bell-crank ol, the center whereof is pivotally secured at 32 to the main frame or truck. As is evident from the construction shown in Figure 2, when the bell-crank 31 is rotated about the pivotal point 32 into the position illustrated in Figure 1, the pivotal mounting of link 29, on crank 31, -will cause the shaft 26 with the ground-wheels 25 to be elevated out of ground-com tacting position into the position shown in Fig. 1. The ground-wheels 25 are disposed at right angles to the main frame and therefore to track-wheels 21, so that when the ground-wheels are lowered into the position shown in Figure 2, the opposite or drill mechanism-carrying side of the device may be lifted up from the track so as to support the device. on the ground-wheels 25 and in turn cause the main wheels 21 to be moved out of traveling contact with the rails thereby permittting the device to be transported away from the track when occasion requires.

The power for operating my improved device comprises any suitable internal comvbustion motor, indicated at 33, which is mounted on the main frame of the truck; with the crank-shaft of the motor connected with a suitable sprocket, as shown at 34:. One of the main supporting wheels 21 of the truck is sho vn provided with a large sprocket 35, see Figure 3; the sprocket wheel 35 being a lapted to receive a suitable sprocket-chain which is to be disposed about the sprocket 34 when it is desired to use the power or motor for propelling the device along the track. 1

At a suitable point, intermediate of the ends of the main cross-bars or frame members 22, I provide suitable brackets or journal-boxes, as at 36, for oscillatingly securing the frame 37 of the drill mechanism through the medium of mechanism later to be described; the mounting of the frame 37 in the manner shown and to be described, permits the drill mechanism and said frame to be swung vertically from the operative position shown in Figure 1 into the inoperative position shown in Figure 2 where the drill mechanism will be disposed above the main truck portion of the device. The journal or supporting rod 38 of the drill mechanism frame 37 is shown provided with the segmental grooved wheels 39 fixedly secured thereto; and the grooved segmental wheels 39, at one point, each have a chain 40 secured thereto, the opposite end whereof is connected with coil springs 41 whose opposite ends are fastened to the main supporting frame 20 and constantly exert a pulling tension on the chains 4:0 and therefore on the segmental wheels 89 so that the frame 37 ofthe drill mechanism will be more or less yieldingly suspended in either position and most of the weight of the drill mechanism taken up by said springs. The chains 10 are secured to one end of each segment so that when the drill mechanism is in drilling or operative position a pulling tension will be exerted on the end of the segments 39 disposed above the journal or rod 88 of the frame 37 and thus tend to yieldingly support the weight of the mechanism. It is evident from the construction shown and described that swinging of the drill into inoperative position as shown in Figure 2, will move the segmental wheels through the arc of a circle so that the respective springs 11 will exert tension on the end of segments which are now disposed below the journal of the drill-frame mechanism and thus tend to carry the major portion of the weight of said frame when the latter has been folded over the truck, as shown in Figure 2; the springs thus tending to assist the operator in swinging the drill mechanism into and out of operative posi tion; while the feed-lever carried by the frame may be used by the operator as a handle in swinging the frame into inoperative position. In order to support the drill mechanism frame when in folded over position, shown in Figure 2, I provide the main frame with suitable brackets, as at 42, see Figure 3, formed so as to receive the frame members 37. The main frame members 22 are reenforced by the cross-members 43, see Figure 3, secured at a point adjacent the stub-axle end thereof and preferably in the somewhatforwardly bowed mannei',sliown in Figures land 2, so as to serve as a handle when it is desired to lift the small wheel side of the device off the track.

The power-imparting shaft for the drill mechanismis illustrated at 44, see Figure two sections secured together by means oi a suitable knuckle joint, as at 4.5, with the pins or pivot points oftherjoint 45 arranged in alignment, with the journal-boxes F36 which constitute the pivot points for the drill mechanism frame 137. This construction enables one section of the shaft to swing through the arc of a vertically disposed circle when. the drill mechanism is swung into and out of operative position; the outer shaft section being also supported by a suitable box or bracket {to which is fastened on the rod- 38 of the. drill-trame and thus tends to hold the shaftIsection in proper position at all, times; the inner or nonswinging shaft sections being supported in a suitable frame, as st ll, secured to the main frame oi the trucln, The end oif'the innersection-is provided with a detachable coupling. whereby this shaft section 4A is placed .in operative relation -with' the sprocket- 34 secured to the crankshalt v i8 ofthemotor. The coupling lS'SllOWIl in detail in Figures 6, 7-, S and, 9 and comprises aplateltl which provided withwa hub 50 preferably "formed integral therewith and secured to the shaft-section i l so as -to rotate therewith, as for example bymeans of pinc5l. The plateeli); is provided witha series of circumfere'ntially disposedholes or openings therethroi'igh which correspond in number and. location with the spaces intermediate of the teeth of the sprocket wheel 34s; it being understood thattlie sectional drive shaft i4; is disposed :in horizontal alignment with the crank-shaft i8 and withthe sprocket S t on the crank-shaft in close prozo imity to the plate e9 which. is secured to the end of the drive shaft section dd. I; second plate 52 is slidably mounted on the elongated hub 50 oi plate 49 and therefore on the sideof plate d9 removed from. the side adjacent sproclretwheel The plate 52 is provided with a series of circumferentially clisposed-studs or pins ofpred'etermined diameter and length; and arranged in alignment with the respective holes in plate 49, so that when. platerofl is brought into juxtaposition with plate 49, the studs or pins 53 will be disp osed througl'i the holes in plate 49 a distance suiiicient to e1:- tend into the spaces intermediate oi the .teeth of sprocket 34-, see Figures 6 and 7.

It is evident that when, the elements are in therelation just described, and as sl own in Figures t3 and 7, that the driveflshaitt sec tion ia will-be operatii' ely connected with the crank-shaft 418st that. power, during operation oi? motor 3%,will be transmitted through the sectionaldrive shalt dlfito the drill mechanism. On the other hand,-w-hen the plates 459 and 52am inthe separated relation shown in Figure 8, the studs or pins 53 will-have beensufiiciently retracted or Jlate d9 by means of induced for cooling motor 38;

so as to inovethem out ofinterlocking rela;

ti'on with the sprocket .34 iandthus cause an uncoupled or detached. relation between the crank-shaft and sectional drive shaft. ln

order tofniaintain the various positions of plate relat we to plate 49, l provideplate 52 with l tch inemiers e ztslidably mounted on the i plate'52 and normally held in th the. elongated hub 50 I suitable springs55. e50 at suitablepoints is provided cores 5S and 57 adapted to receive ch members 5% when plate 52 has been moved to either oneot its extreme positions;

that is to say, groove will receive the latch members andina ntain plate 52 in juxtaposition witl plate-i while groove 57 will The drireshattsection d4: is shown lproi titled with a suitable balance wheelat 5S; and this shaft section 'is also provided with a suitable pulley; adapted to receive a suitable belt for operating a rotatably mounted {an 60 whereby a current of air is The sectional drivesha-ft M; I is also pro- .vided with suitable [clutch cont-rolling member. at 61 for actuating any suitable clutch mechanism, as for example the clutch mechanism disclosed in Figure 15 and conined in the balance wheel 58 whereby the adjacent d sh aft sections .may'becoupled nd power transmitted tothe outer raid sectional sbait. a l when the secinon coupling mechanism, shown .in' Figures 6 to 9, has been inovedinto operativeposition;

Theend of the outer section of the sec tional. drivesha-ft Aid is provided .witha suitable worm reduction gear at theppoint .62; the worm gear being'enclosed in the housing, shown,' which housing or"cas ing is adapted to contain .suitable'lubricant wherein the gear may be constantly emersed, The -wormwithin casing 62 is adapted to rotate shaft 63 on which sprocket wheelifit is secured so as to rotate there 63 1s supported-by suitable with. .Thesha'lt supporting members 65 which maintain the position of shaft 63 relative (to the-drilh operating mechanism hereinafter described. The lower end of the supporting members 65 .ELlTSyPPOVlClGCl with suitable boxes :66 ,in

which the main operating shaft 67 is, rotatably mounted. Thespro'clret hat is shown 'provi c ed .with a sprocket chain 68 which 'takes about a sprocket wheel 69 secured to drill} shaft 67; so astto impart-rotation thereto. As mylimprored device is-intended to simultaneously dr ll a plurality of holes the drillshait 6? is shown provided with a number of beveled gears 70 arranged in pairs and therefore and maintain plate ment; while the end thrusts on the drill spindle will be taken care of by suitable ball bearings, as shown at 75. Each drill spindle 74 is tapped at the end of the drill socket and provided with a screw as at 76 which enables the respective drill-bits 77 to be ad justed to the same length or distance relative to the rails; and the drill-bits in turn are held in place by any suitable mechanism, as for example the set-screw 78.

As previously stated, my improved rail drilling device is especially intended for simultaneously drilling a multiple of holes at fiXed distances apart and the drills are arranged in pairs at opposite ends of the device as shown; with each pair of drills and operating mechanisms encased in sep'

arate casings

79, 79 of the open or more or less skeleton formation shown in Figures 3 and 4, whereby the drill-spindles, mitre or bevel gears and thrust bearings are all enclosed. The casings 79 are supported from the drill frame members 37 by means of suitable brackets or hangers 80, which may be bolted or otherwise secured to the casings 79, and these brackets or hangers are provided with rollers 81 arranged in vertical spaced relation to ride along the top and bottom of frame member 37, see Figure 5. vVit-h this arrangement the drill mechanisms are not only properly supported, but the drill-casings and the drills may also be readily moved lengthwise of the frame 37 toward and away from the adjacent rails, during drilling operation; and the frame members 37 may be provided with suitable stops or pins as at 82, adapted to prevent the too far movement of the drill-casings in either direction.

The drill-casings 79 are shown provided with rearwardly disposed pbrtions 7 9 formed to provide suitable bearings for a preferably hollow shaft 83. The opposite ends of shaft 83 are each provided with a crank-arm 84, apertured to receive a shaft 85, the ends whereof are disposed through the crank-arms 84 at opposite ends of shaft 83 so as to permit rocking of shaft 85. The shaft 85 in turn has a crank-arm 86 rigidly secured on each end thereof; with one of said crank-arms made integral with a lever 87, whereby shaft 85 and the crank-arms 86 may be rocked and oscillated into any one of the various positions shown in Figures 10 to 12. Thefree'ends of the crank-arms 86, each have a feed-hook or rail-gripping member 88 pivotally secured thereto by means of the stud-bolts 89. At a point intermediate of its ends, the shaft 83is provided with flanged collars or lever guides 90, rigidly secured thereto and adapted to receive a lever 91 therebetween; the guides, or at least one of them, being notched at prearranged points as shown in Figures 10 to 12, for the purpose of receiving the spring-controlled latch 92, secured to the lever 91 and thereby establish operative relation between the lever 91 and the shaft 83.

The feed-hooks or rail-engaging members 88 are so formed that they will contact with the opposite or inside of the rail, a distance below the horizontal plane of drills 77, substantially equal to that of the pivot point 89 below the center of the fulcrum point of feed-lever 91, namely the center of shaft 83 and thereby providing a straight drilling feed thrust and eliminating unnecessary friction and at the same time permitting proper and true operation of the drills. The feed-hooks 88 are shown provided with clips 93 through which a rod 94 extends; the rod extending likewiseof the device so as to be disposed through the clips 93 on both feed- 'hooks 88 at opposite ends of the machine.

The rod 94; is threaded at its ends and provided with nuts whereby the clips 93 are firmly clamped at the desired point on the hooks 88. The rod 94 is also provided with guides 95 loosely mounted on frame members 37; the guides 95 serving to hold the hooks 88 in proper alignment.

Each crank-arm 84 has a rod 96 pivotally secured on the inner side thereof; the rods 96 being bent to take over the shaft 85 and beneath the rear enlarged portion of casings 79 and thence back into substantially the same horizontal plane as the pivotal point thereof on crank-arms 84, as shown in Fig ures 10 to 12. The forward ends of the rods 96 are slidably mounted in lugs on the sides of the casings 79, whereby the rods are supported in proper horizontal position when the mechanism is in operative position. The forward ends of the rods 96 are shown threaded and provided with the adjustable heads or tips 97 which permit the tips to be adjusted lengthwise of the rods 96 so as to adapt them to long or short drill-bits; the tips 97 being locked in adjusted position by means of nuts 98. The push-rods are also shown adjustable by means of turnbuckles 97 which latter are locked by means of nuts 98. The rods 96 are intended to have approximately the same length of stroke as the drills, but are intended to move in the opposite direction and are caused to push against the rails when the drills are being withdrawn from the drilled holes in the webs of the rails.

Thecrank-arms 84 are shown provided with laterally disposed lugs 99 onthe sides provided with cranks 86 and theintegral lever 87; and these lugs 99 are provided with adjustable set screws 100' The setscrews 100 are intended to control the limit of movement of cranks 86 when in clamped position and also to control the length of drilling stroke; the set-screws 100 controlling the distance between centers'of studbolts 89 and shaft 83; because in shortening the distance between centers as described will shorten the length of drill-stroke and produce an easier feed.

From the construction shown and described, it is apparent t-hatwhen lever 91 is voscillated to the left, as in Figure '10, shaft 83 will be rocked so as to move cranks 84 into the downwardly presented position,

. rail on the side opposite to that of the drills.

lVith the feed-hooks 88 positioned as just described, the operator exerts a forward pressure on lever 91 (which forward pressure has a tendency to induce further rocking of shaft 83 so as. to tend to swing the free end of crank 84 further to the right) so as to force the drill mechanism, namely the casings 79 and the drills toward the rail; such forward pressurebeing maintained until the drilling operation iscomplete as shown in Figure 10. v i

The drilling; operat'on having been completed, the operator then oscillates lever 91 toward the right in Figure 10 into the posi tion shown 111 Figure 11.

84 to which push-rods 96 are pivotally secured by means of cap-screws 103, which screws are substantially aligned with stud-.

bolts 89, thereby producing the same length of stroke in the opposite direction tothat of the drills, thereby bringing the push-rod.

96 against the web of the rail and thus are erting a retracting action on the drill mech- 'anism, which places it into the position shown in Figure 11. I s

In order to transport the device to the next joint of the rail or point of drilling against the ball of the rail, thereby preventing any further forward movement of the books 88, with the result that the exerted porting position.

This operation rocks shaft 88 suiiiciently to oscillate crank pressure onthe lever 87 will cause the entire drill mechanism to be moved rearwardly along the drill frame 37, a distance suflicient to have the drill-bits and push-rods clear the ball of the rail (as shown in Figure 12) in the. event that it is desired to elevate the drill mechanism and "drill frame into trans Where the device is merely to be transported along the rails, and circumstances make it advisable to 11121111- tain the ground-wheels in their maximum elevated position, it may be desirable to provide some means, as for example a proper hook and chain, for holding the ground wheels completely elevated,

In order to lubricate and cool the drillbits during operation, I provide a suitable lubricant holder 104 mounted at a suitable point on the frame and provided with fieXible conduits or hose, as shown at 105 in Figure 3, which convey the'lubricant and cooling medium tothe pipes or, conduits 106 which are slidingly mounted on the drill casings 7 9 in suitable guides107; it being understood that one conduit is provided for each drill casing The inner or forward ends of the conduits 106 are branched so as to convey thelubricant or cooling medium to each drill-bit; the branches terminating in suitablenozzleswhich are each provided with a suitable valve as shown at 108. The conduits106 are suitably clamped to the push-rods 96, by meansof straps 109, so as to maintainthe nozzle-end of said conduits in proper relation with the railduring the drilling operation. ,The-straps at 109 are secured to push-rods 96 torward of turn-buckles 97, sothat adjustment of pushrods 96 by means of theturn buckles 97 will also cause the. conduit 106 to be adjusted in a similar manner so as to constantly maintain the proper relation thereof relative to the rail. r

The'conduits 106 are each provided at a suitable point with a valve as at 110,- which is operated by means of a stem 111, connected by rod 112 to the rod 94. The valve and'its stem are so positioned that when the feed-hooks 88 are i clamping position, the valve 110 will be in open position andpermit the lubricant or cooling medium to pass forward to the nozzles and be discharged if valves 108 are open. It is evident that when the feed-hooks are moved into clamping position (see Figure 12) through mechanism as heretofore described, the valve 110 will be automatically closed and the flow of lubricant or cooling medium automatically shut o1f,thus preventing any waste of the fluid during non-drilling operation.

A, lever 113 is suitably secured to the main frame so as to be in. easy reach of'the operator handling lever 91. The main portion of lever 113 is adapted to control the clutch 61 by means of connecting rods 11 through the medium of bell-crank 115; while the latch portion 116 of the lever is adapted to control the'motor.

The feed-hooks 88 are preferably made adjustable longitudinally by making same in two sections, as more clearly shown in Figure a. The abutting surfaces or overlapping ends of the two portions. or sections of the feed-hooks are provided with serrations, as at 88, while one of the sections or portions is provided with a pair of slots disposed lengthwise, adapted to receive the bolts 88". With this construction, when the nuts on the bolts 88 are screwed up, the two sections will be firmly clamped together and lengthwise movement between them prevented by the serrations or gripping surfaces 88. This enables the feed-hooks to be lengthened or shortened commensurate with the length of the d rill-bits, in addition to the adjustment made possible by the plurality of holes at the end of the feed-hooks.

The ends of the journal or supporting rods 38, preferably at points beyond the frame members 22, are provided with crankarms 101 to which suitable connecting means 102, such as cables or rods'are secured; the connecting means 102 being also secured to the ends of the bell-cranks 31 disposed at each end of the device.

With this construction it is evident that when the drill frame 3'4 is elevated, the. crank-arms 101, through the medium of the grooved segmental wheels and journal 38, will be oscillated in such manner as to release the connecting means 102 and thus permit the ground-wheel frame and therefore also'the wheels, to descend and bring the wheels into contact with the ground. On the other hand, when the drill-frame is lowered into operating position, the crankarms 101 will exert a pull on the connecting means 102 and thereby oscillate bell-crank 31 and cause the ground-wheels and their frame to be elevated into theposition shown in Figure 1, thus providing clearance beneath the ground-wheels sufficient to pass over the ends of ties, switches and roadcrossings.

The drill-casings 79 are so constructed that they may be filled with lubricant and the gearing and mechanisms within constantly kept properly lubricated.

in order that the drilling operations may be entirely controlled from the drillmechanism side of the device, I prefer that seetional drive-shaft be extended as shown beyond the worm-casing 62 in order that the end of the shaft 44: may receive a suitable crank for the purpose of cranking or starting the motor 33.

My improved device is so constructed that the entire drill-frame and the mechanisms carried thereby, including the sectional drive-shaft, may be readily rem red or disconnected from the main or truck-frame when it is desired to use the device as a motor track ear or to substitute a different type of drilling mechanism. For this reason I prefer to en'iploy the coupling meohanlsm specifically illustrated in the detail Figures 6 to 9, whereby the inner end of the sectional drive-shaft a l may be removed from its supporting frame 17 after the coupling elements have been disconnected from sprocket 34L, which sprocket is thenprovided with a suitable sprocket chain which is also disposed about the sprocket 35 secured to the axle of one of the main truck or track-em gaging wheels 21. lVith this arrangement, it will be seen that all unnecessary parts can be removed and the full power of the motor transmitted to the drive-wheel of the truck; while on the other hand, a suitable drill-frame and drilling mechanism may be readily secured to the truck-frame when de sired; the application and removal of the drill-frame 87 and the drilling mechanisms carried thereby being accomplished by simply removing the journal-boxes or brackets 36, detaching springs ll from the truckframe and disconnecting the inner section of the sectional drive-shaft 1 i as previously described. As is apparent, therefore, the same truck may be employed in conjunction with the type of drill-'lirame and mechanism which is shown and described in a copending application, thereby obviating the ne cessity for providing a number of truckportions of the class described for different drilling mechanisms.

l have shown and described what I believe to be the simplest and best adaptation of my invention; but it apparent that cer tain modifications may be made in details of construction without, however, departing from the spirit of my invention.

l l hat I claim is 1. A. rail drilling device of the class described, comprisin a truck provided with motive power, drill-frame hingedly secured to said truck and adapted to be disposed to the outside of the rail when in operative position and to fold across said truck toward the opposite side when in; transporting position, drill-casings carried at the outer end of said frame and movable thereon and power-imparting means leading from the motive power on said truck to said drill-casings, said means having a yielding point in alignment with the hinged point of said drill-frame so as to fold therewith.

2. A rail drilling device of the class described,comprising a truck provided with motive power, a drill-frame hingedly se cured to said truck so as to be disposed to the outside of the rail when in operative position and to fold upwardly across said truck toward the opposite side thereof when in transporting position, yielding means in termediate of the-truck-tranie and said drillframe for yieldingly supporting the weight of said "frame and to assist in thevertical movement thereof, drill-casings carried at the outer end of said drillatrame and movable thereon, and power-imparting means leading from the motive power on said truclr to said drill-casings, said means having yielding point in alignment with the hinged point 01? said drill-frame so as to told there with. V

3. A rail drilling device, comprising a truck-frame,'a drill-frame pivotally secured on said trucletrame to swing through the are of a vertically disposed circle and between the truckwheels at one side'or the tru'clp frame so as to extend beyond the rail multiple drill mechanism slidably mounted on the free end of said drill-frame and adapted to be disposed to the outside of thelrail, and

means whereby the degree or movementof the drill mechanism along the drill-frame is determined. 1

4. A rail drillingdevice, comprising a four-wheeled truck provided with transversely disposed frame-members at opposite ends, a drill-frame providedwith a journal rotatahly secured to said frame-members to adapt-the drill-frame to swing upwardly and ontothe truck into inoperative posh tion and downwardly beyond one side of the truck so as to have the free end of said drill-frame disposed on the outside of the rall, means secured to the drill-frame and to the truck whereby the former is yield mgly suspended and the weight transmitted tothe opposite side of the truck, and mul- I tiple drill mechanism slidably mounted on the free end of said dr ll-frame. I

5. A rail drilhng dev1ce,co1n 3r1sing a motive power truck adaptedto travel onthe I rails,a drilhframe journaled on said truck so as to swingv upwardly onto the truck into inoperative position and downwardly beyond one side of the truck into operative position, multiple drill-mechanism slidably mounted on the "free end of said drill-frame,

a sectional drive-shaft intermediate oil the, motive power of the truclcand sa d drill mechanism for transmitting power to the posed circle and extendiheyond one side of the truck to the outside of the rail when in operative position and onto the truck into ino 'icrative position, multiple drill mecha n m slidahly mountedon the free end of :32, ddrillrframe, ground-wheels hingedly secm d to the opposite sideoi the truck, and

11163113\VliEl'GbY the position of the ground wheels is controlled by the position of the drill-frame '7, A rail drilling device, comprising a truck, drill irame journaled on said truck at apoint intermediate otthe sides or the truck so as toswin through the arc o fa vertic-allydisposed c1 ole and extend beyond the side of the truck to the outside of the rail when in operative position and onto the truclrtoward the opposite side thereof when in inoperativeposition, the journal of said drill-frame being provided with "radiating or crank portions, means secured to theradiating or crank-portions of the drilh'frame journal and to the opposite side of the truck for yeildmgly supporting the drill-frame and to assist zertical niovemen't thereof,

di'illanechanism mounted on the free end of the drill-iran'ie; and hingedly secured'to the oppositesid'e of the truck.

S; in

'slidably mounted drill-casings, arranged in horizontal space-(lrelatioinqa plurality ofdrill-spindles rotatably mounted in each drill-casing;, a single power-imparting shaft disposed transverselythrough the drill-casings and common to all of the drill-spindles,

'a rock shaft disposed transversely of and i rear ends of'sa'id drill-cas- E pivotally mounted at their at t mounted li e i said drill-casings are located, means intermediate of said rock-shaft and the feedhoolrs and controlled by said rock-shaft whereby the teed-hooks are simultaneously forced into l'fill-eligiflilg position when said shatt'is rocked in one direction, and means whereby s it maybe rocked and with torcedm directions toward the drill-cas n. J and from the rails. I

9. In a raildrilline' device, a plurality of slidab y mounted di' il -casings, a plurality oitdrill-spindl s rotatably mounted in each drill-casing, a: single powerimparting. shaft common to all of the drill-sjiindles, rock-shaft mounted in "said casing; rockhaft being provided with crank-arms, feed-hooks'pivotally secured to said crankarms and adapted to be "forced into rail-ensing); POSfilOD thereby when the rock-shaft is rocked in one direction, means whereby the nick-shaft is actuated and the feed-hooks maintained in clamping relation withthe opposite or tree side of: therail, and means scground-wheels said a raildrilling device, aplurality of r and'adapted toengap e with the "side or the rail opposite to that on which cured to crank-arms adapted to ,be forced against the adjacent or near side of the rail when said rock-shaft is rocked in the op posite direction and the drill-bits thereby forced away from the rail.

10. In a rail drilling device, a plurality of slidably mounted drill-casings, a plurality of drill-spindles, rotatably mounted in each drill-casing, a single power imparting shaft common to all of the drill-spindles, a rockshaft. mounted at the ends of said drill-casings in substantially the same horizontal plane as said drill-spindles, the ends of the ends of said feed-hooks will be so disposed,

relative to the drill-spindles when the rockshaft is rocked in one direction, that straight drilling thrusts will be provided, and means whereby the rock-shaft may be actuated and the drill-casings with the free ends of the teed-hooks forced, respectively toward the rail on opposite sides.

11. A rail drilling device, comprising a trucloirame, a drill-frame journalled on said truclr-frame at point intermediate of opposite sides to permit the drill-frame to swing vertically beyond one side of the trucleframe or upwardly onto the other side of the truck-frame to shift the center oi gravity, radius members secure to the journal of said drill-frame, and tension means connected with said radius members to yieldingly hold the drill-frame in its suspended positions. 7

12. A rail drilling device, comprising a truck-frame, a drill-frame, journalled on said truck-frame at an intermediate point so as to permit the drill-frame to swing vertically beyond one side and into a plane beneath that of the truck-frame or upwardly over onto the opposite side of the truck frame, and counterbalancing means secured to the drill-frame journal and connected with the truck-frame whereby the drillirame is yieldingly suspended in operative position from the truck-frame, the drillframe journal and said counter-balancing means. being detachable from said truckframe, thereby to disconnect the drill-frame from the tiruclefranie.

13. A rail drilling device, comprising a triicloirame, a drill-frame journaled on said truck-frame, ground-wheels mounted on the side of the truck-frame opposite to that of the drill-frame, and means intermediate of the drill-frame journal and said ground- Wheels whereby the latter are elevated when the side of the truck-frame opposite to that 3 toward which the drill-frame is adapted to swing, means whereby the ground-wheels are held in ground-engaging position when said wheels have been lowered, and means intermediate of the ground-wheels and said drill-frame whereby the ground-wheels are elevated when the drill-frame is swung downward into operative position.

15. A rail drilling device, comprising a motive power truck adapted to travel on the rails, a drill frame journaled on said truck so as to swing through the arc of a vertically disposed circle toward one side of the truck, drill mechanism mounted on the free end of said drill-frame, a sectional driveshaft intermediate of the motive power of thetruok and said drill-mechanism, some of the sections of said driveshaft being provided wit-h a knuckle-joint at a point in alignment with the journal of said drill-frame, and means intermediate of a third section of said drive-shaft and the motive power of the truck whereby operative relation between the sectional driveshaft and the motive power may be established.

16. A rail drilling device, comprising a motive power truck provided with a powerimparting sprocket-wheel, a drill-frame journaled on said truck to swing through the arc of a vertically disposed circle, drillmechanism mounted on said drill frame, a sectional drive-shaft intermediate of said sprocket-wheel and the drill-mechanism, the sectional drive-shaft being provided with a flexible connection at a point in alignment with the journal of the drillframe on the truck, and means slidably mounted on one section of the sectional drive-shaft adapted to have interlocking re lation with said sprocket-wheel.

17. A rail drilling device, comprising a motive power truck provided with a power driven sprocket, a drill-frame journaled on said truck to swing through the are of a vertically disposed circle toward one side of said truck, drill-mechanism mountedon said drill-frame, a sectional drive-shaft intermediate of said sprocket and said drillmechanism, the drive-shaft being provided with a flexible connection at a point in alignment with the journal of said drilltrame, means slidably mounted on one of the sections or" said sectional driveshai'tand adapted to effect operative relation with said sprocket, and means whereby said last mentioned means may be locked in coupled or uncoupled position.

18. A rail drilling device, comprising a motive power truck provided with a powerimparting sprocket, a drill-frame journaled on said truck so as to swing through the arc of a vertically disposed circle toward one side of the truck, drill-mechanism mounted on said drill-frame, a sectional drive-shaft, means whereby the drive-shaft may be coupled to said sprocket, the outer section of said drive-shaft being provided with a gear-casing, and means whereby the operative relation between the drive-shaft and the drill-mechanism is maintained.

19. In a device of the class described, a truck-frame, a drill-frame pivotally mounted between opposite sides of the truck-frame so as to swing vertically to-- ward one side of the rail beyond the side of the truck-frame or upward onto the opposite side of the truck-frame to shift the center of gravity, means whereby said drillframe is yieldingly supported, multiple drill mechanism slidably mounted on said drill-frame, said drill mechanisms compris ing a drill-spindle and a drill-bit, and means disposed at the end of each drill-spindle whereby all of said drill-bits may be ad: justed so as to be aligned relative to the rail to be operated on;

20. In a device of the' class described, a drill-frame, drill-casings slidably mounted on said frame, means rotatably mounted on the drill-casing and comprising a plurality of members having pivotal relation with each other, and feed-hooks carried by one of said members and adapted to engage with the adjacent rails when said means are rotated in one direction, the member provided with the feed-hooks being arranged to have independent rotation whereby the feed-hooks may be given additional longitudinal movement so as to clear the tops of the rails.

21. In a device of the class described, a drill-frame, drill-casings slidably mounted on said drilLframe, compound means oscillatingly carried by the drill-casings and comprising a pair of cam-members, one of which is rotatably mounted on the drillcasing, while the other is eccentrically mounted on the first mentioned member, and feed-hooks pivotally mounted on the second mentioned cam-member and adapted to engage with the opposite side of the rails operated on, the relation between the pivotal points of the feed-hooks and the point of engagement on opposite sides of the rail being such that a straight drilling thrust will be provided.

22. In a device of the class described, a drill-frame, drill-casings secured on said frame so as to move horizontally toward and away from the rails, means carried by. the drill-casings and arranged to be oscillated, rail-engaging members carried by a part of said means and adapted to engage with the opposite side of the rail when said means are oscillated in one direction and the drill-casings forced toward the rail, and push-rods carried by said first means adapted to engage theadjacent side of the rail when the first means are oscillated in a direction to release said rail-engaging members, whereby the drill-bits will be forced away from the rail.

23. In a device of the class described, a drill-frame, drill-casings suspended from said frame so as to slide lengthwise of the frame in a horizontal direction, means whereby the extent of movement along the drill-frame will be determined, oscillatingly mounted means, carried by the drill-cas ings, having a portion adapted to form gripping relation with the rails when a part of said means is oscillated in one direction, and push-rods carried by said second means and adapted to engage with the near side of the rail when a part of said second means is oscillated in the opposite direction and the drill-casings thereby forced away from the rail, said push-rods being adjusted longitudinally.

24. In a device of the class described, a drill-frame, drill casings suspended from said frame so as to move lengthwise thereof, said drill-casings being provided with rotatable drill-spindles having drill-bits adjustably secured at their outer ends, means whereby all ofsaid drill-spindles are simultaneously operated, the-drill casings being provided with. a rock-shaft disposed transversely thereof, the outer ends of said rockshaft being provided with crank-arms, a second rock-shaft disposed through the free ends of said crank-arms and adapted to be oscillated thereby, the outer ends of said second rock-shaft being provided with crank-arms rigidly secured thereto, feedhooks pivotally secured to the free ends of the cranlearms of said second rock-shaft, the feed -hooks being adapted to engage with the opposite side of the rail, and means adapted to have operative connection with the first mentioned rocleshaft whereby the drill-casings with the drill-spindles may be forced toward the rail, said rock-shaft rocked and the second rock-shaft oscillated so as to force the feed-hooks into rail-gripping position.

25. In a device of the class described, a I

drill frame, drill-casings slidably mounted on said frame, the drill-casings being provided with drill-spindles having adjustable drill-bits at the outer ends thereof, a rockshaft carried by said drill-casings and having its outer ends provided with crank-arms, a second rock-shaft carried by said crankarms so as to oscillate therewith, the outer ends of said second rock-shaft being provided with crank-arms rigidly secured to said shaft, one of said crank-arms being provided with an operating lever whereby the crank-arms and said second rock-shaft may be given movement independent of that given by the crank-arms of thefirst mentioned rock-shaft, feed-hooks pivotally secured to the cranlcarms of the second rockshatt and adapted to engage with the opposite side of the rails, the pivotal points of the feed-hooks, axis of the first mentioned rock-shaft and the point of contact of the feedhooks with the rails being so correlated that a straight drill-thrust will be provided, push-rods pivotally secured to the crankarms of the first mentioned rock-shaft and adapted to move into pushing engagement with the rails when the drill-bits are being Withdrawn, and means having operative connection with the first mentioned rockshat't whereby the drill-casings may be forced toward the rails and the respective rock-shafts actuated.

26. In a device of the class described, a drill frame, drill-casings slidably mounted thereon, the drill-casings being provided with drill-spindles having adjustable drill bits at the free ends thereof, a rock-shaft disposed through the drill-casings, the outer ends of said rock-shaft being provided with crank-arms, a second rock-shaft disposed through the free ends of the crank-arms of the first rock-shaft so as to oscillate there with, the outer ends of the second rockshaft being provided with crank-arms, one of which terminates in an operating lever, means intermediate of the crank-arms of the first rock-shaft and the crank-arms of the second rock-shaft whereby the degree 0i movement of the crank-arms of the second rock-shaft may be regulated and the length of drill stroke controlled, feed-hooks piv-- otally secured to the free ends of the crankarms of the second rock-shaft, the pivotal relation of the teed-hooks, axis of the first rock-shaft and the point of engagement ,with the rails of the teed-hooks being so correlated that a straight drill thrust will be provided, push-rods pivotally secured to the crank-arms of the first rock-shaft and adapted to move in the opposite direction of the drill-bits through the movement of the crank-arms of the first rock-shaft, and means having operative relation with the first rocksha'ft whereby the drill-casings may be forced toward the rail and the rock-shafts and. crank-arms actuated.

27. In a device of the class described, a drill-frame, drill-casings slidably mounted on said frame, the drill-casings being provided with drill-spindles having adjustable drillbits, adjustable teed-hooks having operative relation with the drill-casings, lubricant and cooling medium mechanism comprising eonduits terminating in proximity to the drill-bits, said conduits being slidably mounted on the drill-casings and provided with fluid-controlling valves, push-rods carried by said casings, and means intermedi ate of said valves and the push-rods whereby the valves will be in open position when the push-rods are in one position and the feed-hooks are in clamping position and discharge of the fluid discontinued when the push-rods are in a second position and the feed-hooks are moved out of. clamping position.

28. A device of the class described, comprising a drill-frame, drill-casings slidably mounted on said frame, the drill-casings being provided with drill-spindles having adjustable drill-bits, adjustable feed-hooks ope atively connected with the drill-casings, lubricating and cooling medium mechanism comprising conduits terminating in proximity to the drill-bits, said conduits being slidably mounted on the drill-casings and provided with fluid-controlling valves, pushrods adapted to engage with the rails when the drilLbits are being withdrawn, said push-rods being adjustable intermediate of their ends, means intern'iediate of the pushrods and the valves, and forward 01" the adjustable point of said push-rods whereby the valves will be in open position when the push-rods are in one position and the valves will be closed when the push-rods are in a second position.

FRED'E KICK A. TEGELER.

Witnesses G. IIEIDM'AN, F. A. FLORELL.