US1798783A - Adzing machine - Google Patents

Description

MalCh 31, 193l R. w. BUETTNER E1' AL 1,798,783 v ADZING MACHINE v Filed Feb. A7. 1929 4 Sheets-Sheet 1 R. W. BUETTNER ET AL March`31, 1931.

APZING' MACHINE Filed Feb. '7. A1929 4 Sheets-Sheet 2 March 31, 1931.

ADZING ,MACHINE Filed Feb. 7. 1929 R. W. BUETTNER ET AL.

4 Sheets-Sheet 3 Mldl 31, 1931- R. w. BUETTNER Er AL 1,798,783

ADZING MACHINE Filed Fab. '7. 1929 4 Sheets-Sheet 4 ZRT/672150735 Patented Mar. 31, 1931 UNITED STATES RUDOLPH W. BUETTNER, HELMER E. ERICKSON, AND HNRY H. 'I'ALBOYS, OF MILWAU-- KEE, WISCONSIN, ASSIGNORS T0 NORDBER-G VISCONSIN, A CORPORATION OF WISCONSIN PATENT OFFICE www" MANUFACTURING CO., OF MILWAUKEE,

ADZING MACHINE Application filed rebruary 7, 1929. Serin No. 338,066.

@ur invention relates to a machine or power` plant adapted tor use upon railroad tracks and particularly adaptable, for example, for ruining olif ties to even them to receive rails to he laid upon ties or to be relaid upon ties which have already been used. One object oli our invention is the provision of such a. device which may ride upon and be conveyed along railroad tracks where two rails are in place, and which, at time of use, may be Supported upon a single rail. Another general object of our invention is to provide a traveling power plant which may be eulployed for Work to be done ou railroad ties, track, roadbed or the like. nnother object is the provision of a device in which a track or tic engaging memher may be normally held by gravity out of contact with the work, but which may be thrust by the operator against the work.

i Other objects will appear from time to time in the course of the specification and claims.

lVe illustrate our invention more or less diagrammatically in the accompanying drawings, whereinlP i gure l illustrates a plan View;

llignre 2 illustrates a side elevation of the device when in use;

Figure Si is a side elevation of the device when in condition tor transportation;

Figure l is a sect-ion on the line 4--4 oit' flgure 3;

l `igurc 5 .is a detail `front elevation of t-h handle and guard plate; l

Figures 6,77 and 8 show the cutter end of three variant forms, and Y llligure 9 is a detail section.

Like parts are indicated by like symbols thrfiughout the specilication and drawings.

Referring. t'or example, to Figures 1,2 and f the parallel longitudinal trame elements A1 have suitable transverse or end connecting members ft2. A* A4 are rail contacting flanged wheels journaled, for example, in the bearinsgs A5 on the members A1.

B B indicate transverse frame members which rest upon and are securedto the longitudinal members A1 in any suitable manner. The members B at one end are connected bv a transverse frame member B1, and at theirvopposite end are connected for example byV the short transverse member B2. TlieendsB3 of the members B have bolted between them a bearing block or casting which will later be discussed in greater detail.

Mounted on the end of the members B adjacent the transverse member B1 is any suitable engine supporting frame or plate indicated as C in Figures 1 and 2. This plate is illustrated as adjustable along the members B as by the adjusting slots G1 shown in Figure l. The bolts C2 pass therethrough and any suitable locking members may be used to lock the plate in adjusted position, for example the nuts C8. C4 generally indicates any suitable power source,herein indicated as an internal combustion motor. It will be realized that anysuitable operating means or drive or connection may be employed to provide power for the driving of the parts later described. However, we illustrate in connection with the engine Cft a pulley C5 adapted to drive the drive belt CG. i C7 C7 indicate angle members extending across the members A1. Upon them are mounted vertical supports CS provided with a plurality otl apertures Cs through any of which may pass a shaft C10 upon which is rotatably mounted the belt guiding pulley C11. The purpose of the guiding pulley C is to guido the belt C, which passes about the horizontal pulley C and the vertical pulley H7. `Wherc as we have shown practical belt guiding means, it will be understood that we do not wish to be limited to the specific details herein described and shown, except so far as lim` ited by the actual language of our claims.

` Referring primarily to Figures` l and 3, when the deviceisin position to be transported along a track in which both rails are in position, the wheels A4 engage one rail of the track and a wheel D .engages the opposite track. This wheel D is mounted at the end oit any suitable support, for example the angle iron D1, which is pivoted as at D2, intermediate the ends of one of the transverse frame members B. It may be pivoted, for example, in a yoke D3, which yoke in turn is pivoted as by the bolt D, to provi-de what is in a broad sense a universal `joint or connection between the end of the member D1 (lll llill provide any suitable means for seeuring D-5V in relation to B2, as for example by the bolt D6 upon which is rotatably mounted the nut 1G? on the arms G4 G5.

adjust the rollers G6 G7 to center' the cutting D7 With its handle Ds Which serves to make its manual rotation easy and to lock. it and keep nut D7 from turning off byvibration. When the Wheel D and its supporting member are in the dotted line position of Figure 1 or in their full line position of Figure, the entire device may be moved along the track either manually or by any suitable cou- 1 pler connection to ahand car erj the like. Vhen the Wheel D is in conta-ct with the rail, the cutting or operating mechanism below described is held out of contact with the track, ties and roadbed.

When it is desired to use the device, for example to adze ofi' a tie, the Wheel D and its support D1 may be rota-ted into the full line position of Figures l and Q, at which time the member D1, as shown in Figure 2, rests upon the top of the nearest longitudinal support A1, and the wheel D, Which may be made 'consiclerably heavier than the usual railroad Wheel, serves as a counterweight to tilt the frame members B3, `and the devices carried thereby, upwardly from track, ties and road-` bed. The Wheels A4 maintain their contact with the rail, and the device may thus be rolled along a single rail, as-When the other rail has been removed; In order to limit this upward tilt in response to the counterweight, We may provide any suitable abutment for the opposite ends of the frame members B. As shown in Figures 2 and 3 We may employ, for example,l a shoe or roadbed con. tacting member E, with the eye El," mounted iu any suitable bearing block E2. E3 is a take-up nut engaging the ends ot the oppositely threaded bolts E4 E A'whereby rotation of the nut E3 lengtliens or shortensthe total length of the device. The device when not in use maybe hooked up by any suitable hook or support FJ, as shown in Figure 3. It Will be realized that "We do net'i'vish to belimited to any specific supporting meansb'ut that We find it desirable to provide some abutment,

preferably adjustable, whereby When the Wheel Dis servingas al' counterweight the upward lifting of the frame members B may be limited tosome predetermined level. The

member E is'pr'eferablyupturned or beveled at the ends to permit it to ride along the ties; Nhen the device is in Working position to adze ties and supported only' upon the WheelsA4, means are necessaryfoi holding.

said Wheels upon the rails.. As an example of such means We may form the end plates A2 as shown in Figure 2 to include a pair of adjacent arcuate portions G G1. To each such portion is pivoted, as at G2 G3, roller supporting arms G7 at the endsthereof, each such roller being adapted to engage an opposed face of the side of the rail. The edges of the arcuate portions G G1`are formed with a plurality of adjustment apertures GS which may bepenetrated for ez'ample by securing pins or bolts IVe may therefore or Working headfH8 directly over the center of the groove made'by the other rail in the old` ties to bev adzed or slightly off center as desired. The lbroad tread of Wheels A4 allows quite an adjustmentibefore it is necessary to kmove Wheels A4k either Way on their journal or axle which is carried in bearings A5 As the machine is moved forth and back across the tie to be adzed it can be moved more easily with roller guides to keep it on the rail than When depending on the flanges of Wheels A? A4 for one side and a roller on the other side of the rail. The rollers cause less friction than the flange of the Wheel. In practice a measure of play is necessary in order thatthe rollers may not bind when the device is tilted.

lUnder some circumstances it maybe possible to dispense with the rollers G, leaving only the rollers G7 Awhich are opposed to the iianges of the Wheels A?. y

Figure 2, andthe full line structure of FigureA l, indicate the device in operating position. Referring for example to Figure 2, We may employan operating or Working structure which includes the bearing. member generally indicated as H. It includes thebearing sleeve H1, which may have cast or secured to it Webs H2-and a block H3 which'v maybe secured between or bolted between the ends of the frame members B?. In order Vto provide. a measure of adjustment for such block We have illustrated the inclined apertures B4 in the frame' members B3 through which may pass the securing bolts H4 Whichr'eceive thesecuring nuts H7'. i Mounted for rotation yWithin the bearing sleeve H1 is any suitable rotatable and preferably hollow shaft HG, to the upper end of which is secureda pulley H7 about which passes the belt C6. At the lower end of the shaft H6v is any suitable Working head HS, upon whichr are mounted any suitable Working members or cutters generally indicatedV Whereas We have illustrated our device Gr"1L G5 Vwith the rollers GG y lill) as having a generally vertical cutting shaft` with cutters vat lthe lower end thereof,- such shaftv being driven by a pulley, itwill berealized that'we do not ivish to limit'ourselves to any such specific driving or cutting means. We may employ other cutting arrangements andvother driving means. We illustrate for example in Figure 6 a block I, adjustable on the ends of the members B with a shaft I1 therewithin, such shaft having the pulley I2 at the top thereof and a bevel gear I3 at the bottom.

Such gear meshes with an opposed bevel gear I4 on the horizontal shaft I5, such shaft having cylindrical cutters I at each end thereof. I7l indicates any suitable stop pr0- jection on the member I whereby the downward movement of the cutters may be limited in their operation upon a railroad tie, when the cutters I6 have reached the level of the bottom of the already formed track groove.

In Figure 7 we illustrate a form of cutter similar' to that shown in Figure 6, such cutter or pair of cutters, however, being driven by a flexible shaft IS.

Figure 8 indicates a further variation of our device in which a drive shaft K acting through any suitable joint K1' rotates the sprocket K2 which, through any suitable chain or belt K3, drives the sprocket K4r upon the sllliaft and thereby rotates the cutters It will therefore be realized that although we have described and shown a practical and operative device, nevertheless we wish our drawings and description to be taken as in a broad sense illustrative and diagrammatic, rather than as tying us precisely and particularly to the structure shown, except so far as we limit ourselves by our claims. Thus we may employ cutters rotatable about a horizontal axis or about a vertical axis or any other suitable axis, and we may employ flexible drives and drive shafts or driving pulleys, without departing from the spirit of our present invention.

In operation the engine preferablyidles when not in use. A handle may be pro* vided, shown for example in Figures 2 and as including the cross-piece L, whereby the user may thrust the cutter against the gravital effect of the counterweight wheel, in order to operate on the tie. L1 are hand pieces on such cross-piece- IVe may employ any suitable means, for example a fiexible connection between the handle L and the engine, whereby the operator, either automatically or at will, opens the throttle when he grasps the handle, and runs the engine at full speed. The handle L is supported on the two bars L2, which are secured to the forward ends of the frame members B3, as by welding. A guard or shield L3 is flexibly supported as by the chains L4. Second chains Lsilimit the approach of the guard to the cutter. A similar guard L may be mounted at the opposite side of the cutter, supported as by the chains L7 and its approach to the cutter limited as by the chains L8,

The guards L3 and L are positioned in the lateral plane of discharge of chips, shavings and the like from the rotary cutters of the working head. The operator stands to the left of the cutting head, taking the parts in their position as shown in Figure 2, and were a guard not provided the rotation of the cuti erator. The guard L prevents their discharge toward the engine.

The fact that some roads incline the rails towards the center, and also the necessity for banking the cuts on a curve, makes the ad-` justment of the angle of the cutter head, for exaniiple in the slots B4, of considerable importance.'

Mis a cord extending from a lever M1, on one of the handle grips L2, whereby the speed of the engine may be controlled. It willbe understood that the cord extends from any suitable throttle mechanismthe details of which form no part of the present inven tion and are therefore not indicated herein.

IVhereas we have illustrated this device in connection with means for adzing olf rails, it may be obvious that it can be employed as a power plant for driving other mechanisms. For instance, by substitutingother tools we may employ the device for drilling,`pulling and driving spikes, turning up bolts, etc., in which caseit may take the placeof an air drill. I/Vhereas wefhave not illustrated any specific coupling, it will be realized `that a coupling device may be employed `whereby the device may be pulled by a motor or hand car. Whereas the device is particularly adaptable to adzing old ties, it will also sur# face a new tie to conform to the central plane of the cutter.

The use and operation of our invention are as follows: V i 1 Our device is shown as applied to the adzing of the top surfaces of ties to receive the rails of a railway track. We wish it understood,` however, that, although this is a preferred use'of our device, our invention is applicable, also, for other purposes, and, in fact, may be'employed `for practically any operation inwhich a tool has to be used upon or directed against a railway tie or a rail, or any other object within reach of the rail upon which the device is mounted.

However, considering the application of our invention to an adzing machine, we illustrate a frame longl enough to extend across both rails of the usual railway track. Mounted upoirthis frame `is a working head, the head shown being particularly adaptable for adzing of the top of a tie. Assuming that this head is to work upon the top of a tie at a point from which the rail has been removed,` we provide means, viz:` the wheel D, which has the multiple function of aiding in the support ofthe device when it is conveyed along a railway track, and of holding the cutter head out of contact with the rail when lli) Figure l. In the form of the device herein shown we illustrate as power plant an `in ternal combustionv engine. This engine is placed adjacenty the rail engaged by the wheels A4, viz: the wheels which are in con stant engagement with a rail. The wheel D is preferably of such weight as to hold the end of. the frame down in the position inV which it isv shown in Figure 3. When itis swung to its opposite position, the full line Y, position of Figure l, it eo-operates with the weight of the engine in tilting' the opposite end of the frame upwardly into inoperative position. lVhen it is so tilted the operator can thrust the cutterA head downwardly against the rail, theparts and weights being so proportioned that an operator can easily thrust the cutter head downwardly, although when his'manual thrust is released the weight of the counterweight, or of the counterweight and engine', immediately rotates the cutter head upwardly away from the tie.

In a device of this type, in 'which during operationthe frame is mounted on a single rail, it is necessary to provide means for holding the wheels A4 in position on the rail. As an example of such meanswe illustrate the rail engaging rollers GG G7, which are shown, as in Figure 3, adjustable toward and away from the rail. It is important that there should be the cutters H9 need be adjusted. An increase in the height of the rail affects the angular relation of thel cutting plane to the tie; Any adjustment necessaryto care for height or width of rail and location or inclination of the cutting plane may be effected by the adjustment of the rollers G6 and G", together with the adjustment of the axis of the cutter in relation to the framefBror,

further.adjustment is effected bythe lateral movement of the wheels A4 in thebearings A5, as shown indetail in Figure 9, in which, for example, we-illustrate the'apertur'es A20 in the shafts A21 and the cotters or pins A passing therethrough, the wheels A4 being pinned or secured to the shafts A21.

In order to limit the gravital tilting move,- ment, we may provide any suitable ground or tie engaging member', for example the contacting member E, the ends of which may be rounded or upwardly beveled, to vpermititto slidealong the roadbed and ties as the device is shifted. f j

In order to maintain the necessary adjustment of drive motor means and the like, we mount the engine upon-'a plate which is adjustableonthe frame.y The cutter head is adjustable, as in the slots B4.

such adjustment, since the Y size, height andl width of rail may vary and,

more properly stated, in relation to the plane of the tie. Al

rThe slots B4 are preferably concentric, being described about a center lying on the axis of rotation of the cutter head andladjacent the bottom of the stop VH1". The belt guiding pulley or roller C14 is also indicated as adjustable.

The object of this pulley is to guide the belt l from the vertical belt pulley C5 to the hori- Zontal belt pulley H7, as shown, for example, in Figure 3. In changing .the angle of the cutter head spindle as shownfin Figure 3, as by adjusting` it in theslots B4, the distance separating thepulley H7 andthe pulley C5 is varied greatly, as the relation of the cutter y spindle to the slots B4 is such that the adjustmentiseffective as if the upper end of the cutter spindle were rotated about the center of the bottom' or stop I-Ilo. It is therefore necessary to adjust the pulley C11, which adjustment may be effected byjmeans of the aperture C9 through which' the shaft C?? may be'passed. This adjustmentinay be vmade effective to hold or guide the belt C".

Vllher'eas we have shown 1n a numberof he drawings a belt drive, it will be realized that we do not wish to be limitedspecitieally thereto except as set out in the claims. Thus in Figure 7 we illustrate a flexible, drive and in Figure 8l a driven shaft -K which, through a sprocket K2, drivesthe chain K3 and the sprocketv K4. y Y

In order to permit the operator to thrust the tool `or cutter' head ldownwardly against the tie, we illustrate a cross-piece L with the hand engaging membersLl, the side bars L2 extending downwardlyto and being connectedV to the frame elements B; LS is a guardv or shield flexibly supported by the members L4, L5. This shield L? extends `downwardly approximately to the road-bed level when the toolis in operative position andtends to protect the feet of the operator from contact with the cutting head and fromina'terial cut from the tie, which-might otherwise Abe projected outwardly against the operator.

IVe prefer Ain normal operation to'permit the engine C4 to idle, it being speeded up only when the cutter head is actually Ain engagement with the work. VWe mayeinploy, for example, the flexible connection, wire or rope or the like, indicated in Figure 2 as M, whichextends to a lever M1 associated with one of the hand pieces L1, which may be.

made rotatable upon the crossLbar L; As the opera-tor thrusts downwardly upon the handles L? he may at the same time tighten the control part M' and thereby accelerate the motor. jv v f In a number of the claims wev describe the transverse connection between the two rails,

- or the member on which the cutter is mounted, as a frame. It will beunderstood thatwe wish the word frame tobeinterpreted sufii'-A ciently broadly to cover any extension or member uponwhich the cutter is mounted.-

Preferably severalchannel or angleirons will be used but a single channel or angle member, if of proper strength and cross-section, might be employed.

Where in the claims we employ the word track or railroad track we wish this term to be interpreted with sullicient breadth to cover a railroad track taken generally, including the rails, ties and adjacent road bell. Thus where we speakl of a machine operative upon a track or having parts movable downwardly toward or upwardly away from the track we wish it to be understood that the machine may be employed to operate upon the rails or the ties or the road bed. The particular type of machine herein disclosed is primarily designed for operating upon the ties, but a mere change in the working` head will adapt it Jfor other purposes.

We claim:

l. In a machine adapted for use upon a railroad track, supporting wheels adapted to engage one rail, a frame mounted upon said supporting wheels, a working member mount-- ed on said frame and means for actuating it, a track engaging member, associated with said frame, shiftable from one position in which it engages an opposite rail, to another position in which it tilts said frame and head, upwardly away from the work.

2. In a machine adapted Jfor use upon a railroad track, supporting wheels adapted to `engage one rail, a frame mounted upon said supporting wheels, a working member mounted on said frame and means Jfor actuating it, a track engaging member, associated with said trame, shiftable from one position in whichv it engages an opposite rail, to anotherposition, in which it tilts saidv frame and member upwardly away from the work, and a supporting member for said track engaging member, said. supporting member being pivotally secured to said frame. v

In combination with a machine adapted for use upon a railroad track, a frame spanning the rails of said track, a wheel movably mounted upon .said frame adapted when in one position to engage a rail of said track, and to assist in the support of said frame, and

adapted when in another position to serve as a counterweight for tilting said frame.

el. In a machine adapted for use upon a railroad track, track engaging supporting means adapted to engage one rail of said track, a iframe associated with said supporting means and tiltable in relation to said rail, a Working member mounted on said frame and means for actuating it, an additional rail engaging member, associated with said frame, and adapted to engage the opposite rail `of the track and adapted to be movedinto and out of rail engaging position, and adapted, when in one position, to serve as a counten weight to tilt the frame and working member into inoperative position. y 5. In a 'machine adapted. for use upon a railroad track, supporting means adapted to engage one rail, a frame mounted upon said supporting means, a working member upon said frame, power means upon said frame and a driving connection between said power means and said working member, means for normally tilting said frame and working member out ot' operative position by substantially balancing them on said rails, and means for limiting the extent of saidtilting 1novement, including a ground engagingmember adapted to be `moved into contact with the ground in response to tilting movement of the frame.

6. In a machine adapted for use upon a railroad track, supporting means for said machine adapted to engage a single rail only of said track, a member, mounted upon :said supporting means and extending laterally from the rail and supporting means, means for substantially balancing it upon said single rail during the actual operation of the machine, and a working `head mounted adjacent the end of said laterally extending member opposite to the rail upon which the member is supported.

7. In a machine adapted for use upon a railroad track, supporting means `for said machine adapted to engage a single rail only of said track, amember, mounted upon said supporting means and extending laterally from the rail and supportingmeans, adapted to be supported solely upon said single rail during the actual operation of the machine, and a working head mounted adjacent the endof said laterally extending. member opposite to the rail upon which the member is supported, said laterally extending member being tiltably supported upon said rail, and

means for maintainingit with its outer end, Y

together with the working head, normally tilted upwardly-away from the tiaclnwlien the machine is ready for actual operation, the laterally extending member being tiltable downward for working contact of the working head and track.

8. `In a machine adapted for use upon a railroad track, supporting means for said machine adaptedto engage a single rail only of said track, a member, mounted upon said supporting means and extending laterally from the rail and supporting means, adapted to be supported solely upon said single rail during the actual operation of the machine,

and a working head mounted adjacent the ond i of said laterally extending member opposite to the rail upon which the member is supported, said laterally extending member being tiltably supported upon said rail, and means for maintaining it with its outer end, togetherwith the working head, normally tilted upwardly away from the track, the 1aterally extending member being tiltable downward for working contact of the working head and track, and means for adjusting the lOO upwardly away position of the working head i-n relation to the laterally extending member.

-sp an tlierails of said track, supporting means for said frame adapted to engage one rail only of said track, said vframe being substantially balanced upon said singlek rail for tilting 'movement downwardly toward and upwardly away from portions of the track laterally spaced from said rail.

10. In a machine adapted Jfor use upon a railroad track, a transverse frame adapted to span the rails of said track, supporting means tor said frame adapted to engage one rail only of said track, said trame being tiltably supported upon said single rail for tilting movement downwardly toward and upwardly away `from portions'o the 'track laterally spaced from said rail, and an additional supporting member movably associated with said frame, adapted when in one position to engage the opposite rail of said track and adaptedwhen in another position to serve as a counterweight for tilting the trame upwardly away from laterally spaced portionsl of' the track;

11. In a machine adapted Ytor use upon a railroad track, a transverse frame adapted to span the rails of said track, supporting means for said frame adapted to engage one rail only of said track, said trame being substantially balanced upon said single rail for tilting movement downwardly toward and from portions of the track laterally spaced head rotatably mounted upon a portion of the frame remote from said single rail` and actuating means tor said fwo'rking head Ipositioned on a portion of the ram'e adjacent said single rail.

12. In a machine adapted for use upon a railroad track, a transverse frame adapted to span the rails of said track, said frame being mounted upon and supported upon one rail only ot said track, when the machine is i in position oruse, said machine including a working head and gravita-1 means for holding said head normally withdrawn upwardly Jfrom the track prior to the initiation of working contact with the track, said head being adapt-ed to be manuallyr thrust downwardly into contact with the work.

13. In 'a machine' adapted `for use upon a railroad track, a transverse frame adapted f to span the rails of said track, vsupporting for said frame adapted to engageone rail only of said track,

means i said frame belng t1ltably supported and substantially'balanced upon said single rail tor tilting movement downwardly toward and trom-portions ot the track laterally spaced from said` rail, a working head rotatably .nounted upon a portion et the trame remote from said si from said rail, a working ably associated with the frame.

upwardly away gle rai'l,`and aet-ua-ting meansfor said working head positioned on the opposite side of said single rail from-the working head.

14. In a machine adapted for use upon a railroad track,'track engaging supporting wheels adapted to engage one .rail only of a track, a frame mountedupon said wheels and substantially balanced upon said single rail, a working member mounted on 'said frame andmeans for actuating it, and a wheel movably mounted upon said frame, said wheel being shiftable from one position in which it engages an opposite rail to another position in which it is out of contact with said rail.

15. In a machine adapted for use upon a railroad track, track engaging supporting wheels normally engaging one rail only of a track, a frame mounted upon said wheels and substantially balanced upon said single track, said frame extending laterally from said rail for a distance as great as the normal width ot Va track, a working member mounted upon said frame and means for actuating it, and means for tilting said frame as awhole, and for tilting the working memberupwardly away from the track about an axis conforming generally with .the location of the rail upon which the frame is balanced.

16. In a machine adapted for use upon a railroad track, track engaging supporting wheels'normally engaging one rail only of a track, a frame mounted upon said wheels and substantially balanced upon said single track, said frame extending laterally from p said rail .for a distance as great'as the normal 1' width of a track, a working member mounted upon said frame and means for actuating it, andtmeansfor tilting said frame as a whole, and for tilting the working member upwardly away from the track about an axis conforming generally with the location of the rail Aupon which the frame is balanced, saidmeans including a counter-weight mov- 17. The structure of claiml, vcharacterized by the employment of means for limiting the upward tilting movement of the frame and working member. v`

18. In:` a machine adapted for use'upon a y railroad tracksupporting means adapted to engage one rail of said track, a laterally extendingI frame of a length as great as the width ofthe track, mounted upon said s uporting members, and tiltably sup-ported andH substantially balanced upon said rail, a working member uponv said frame and means for actuating it, said supporting means. being laterally adjustable in relation to said frame.

19. Ina machine adapted for use upon a railroad track, supporting wheels adapted to engage one rail ot said track, a laterall-yextendingframegot a length as great as lthe width ofthe track, mountedupen said suppeiztingwheels', and tiltably supported and substantially balanced upon said rail, a Worle ing member upon said frame and means for actuating it, said 4supporting Wheels being laterally adjustable in relation to said frame.

ln a machine adapted for use upon a railroad track, supporting means for said machine adapted to engage a single rail only of said track, means for limiting transverse movement of said supporting means in relation to said rail, a member, mounted upon said supporting means and extending laterally from the rail and supporting means, means for substantially balancing it upon said single r il during the actual operation of the machine, and a Working head mounted adjacent the end of said laterally extending member opposite to the rail upon which the member' is supported.

2l. In a machine adapted for use upon a railroad track, supporting Wheels for said machine adapted to engage a single rail only ot said track, said Wheels including flanges adapted to engage one side of said rail, and means for preventing transverse movement f of said Wheels in relation to said rail, opposed to the side of the rail opposite to the flanges of the Wheels, a member, mounted upon said supporting means and extending laterally from the rail and supporting means, means for substantially balancing it upon said single rail during the actual operation of the machine, and a Working head mounted adjacent the end of said laterally extending member opposite to the rail upon Which the member is supported.

22. The structure of claim 2l characten ized by the employment of a sector plate, a guide Wheel support adjustably mounted upon said plate and a guide Wheel positioned upon said support and opposed to a side of the rail.

Ell. In a machine adapted for use upon a railroad track, supporting means for said machine adapted to engage a single rail only of said track, a member, mounted upon said supporting means and extending laterally from the rail and supporting means, adapted to be supported solely upon said single rail during the actual operation of the machine, and a working head mounted adjacent the end of said laterally extending member opposite to the rail upon Which the member is supported, said laterally extending member being tiltably supported upon said rail, and means for maintaining it with its outer end, together 'with the Working head, normally tilted upwardly away from the track, when the machine is ready for actual operation, the laterally extending member being tiltable down- Wa rd tor Working contact of the Working head and track, and means for limiting the tilting mot/*ement of said laterally extending member upwardly from the track.

24. The structure oi claim 23 characterized by the employment of a ground engaging stop HENRY H. TALBOYS.

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