US1994151A

US1994151A - Grinding machine for railway tracks

Info

Publication number: US1994151A
Application number: US557969A
Authority: US
Inventors: Henry H Talboys
Original assignee: Nordberg Manufacturing Co
Current assignee: Nordberg Manufacturing Co
Priority date: 1931-08-19
Filing date: 1931-08-19
Publication date: 1935-03-12
Anticipated expiration: 1952-03-12

Description

March 12, 1935. H. H. TALBoYs GRINDING MACHINE FQR RAILWAY TRACKS Fi1ed Aug. 19, 1951 5 Sheets-Sheet 1 ummm March 12, 1935.

5 Sheets-Sheet 2 Filed Aug. 19, 1931 2 KZ y? @V6/far 7@ E Uw Y WM if March 12, 1935. H, H. TALBoYs 1,994,151

GRINDING MACHINE FOR RAILWAY .TRACKS Filed Aug. 19. 1951 5 Sheets-Sheet 3 March 12, 1935; l H H, TALBOY'S 1,994,151

l @BINDING MACHINE FOR RAILWAY TRACKS Filec'' Allg.. 19, 1951 5 Sheets-Sheet 4 T5 lf j March 12, 1935. H. H. TALBoYs 1,994,151

GRINDING MACHINE FOR RAILWAY TRACKS Filed Aug. 19, 1951 5 Sheets-Sheet 5 riff/ifa? Patented Mar. 12V, 1935 GRINDING MACHINE Fon `RAILWAY frissonsl A Henry H; Talboys,`Milwaukee, Wis., assigner to Nordberg Manufacturing Co., a corporation of Wisconsin Milwaukee, Wis.,

` applicati@ August i9, 1931,s'eria1N0.557,969 p eolaims. (ci. 51,-178)U `My invention relates to an `improvement in grinding machinesl for railroad tracks and has for one purpose the provision of aV simple, light and efficientV grinder which maybe mounted'upon 5 or moved along a railway track'and which may b e readily removed from the track. -AAnother-object is the provision of an improved control means or clutch adaptable for use with the grinderor with other power driven 'mechanisms v*Other objects will arise from time to Atime in the course of the specification and claims.` .I illustrate my invention more or less diagram matically in the accompanying'drawings wherein Figure 1 is a side elevation; y Figure 2 is an end elevation;

Figure 3 is a section on a line 3--3 vof Figure l; Figure 4 is a similar section with parts infa diiferent position; i? i x Figure 5 is a section on the line 5--5 of Figure 3 with parts omitted; Figure `6 is a section on the line 6'-;6'of` Figure 1;

Figure 7 is a section on a line 7-7 of Figure 6; l

Figure 8 is a View similar to FigureSof a variant form;

Figure 9 is a section on lthe-line 9 9 of'Figure 3; i v

Figure 10 is a view similar to Figures 3 and 8 of a `further Variant form; and i vFigure 11 is a section o-n the line 11-11 of Figure 10. Like parts are indicated" by like symbols throughout the specification and drawings.

'Referring to the drawings,"AA indicate the rails of a track. Spanning theserails is the transverse shaft A1 which is provided at one end with any suitable roller A2 of vinsulating material. Rubber is a practical material' for this purpose. The shaft A1 is secured at its opposite end to aV base frame generally indicated as B. The frame may include the yoke shapedor longitudinally extending angles B1 which are connected as by the horizontal channels `B2. The ends of the Vchannels B2 may be connected by the arcuate channel portions B3. Downwardly depending from the angles B1 are the'flanges B4 Vto-which the shaft A1 is actually secured. Other depending flanges are members B5 which receive the transversally extending axles B6 of the flanged rollers B", which rollers are provided at each end with flanges B8 conforming generally tothe form and width of the tread portions of the rails A.

C generally indicates any suitable motor structure mounted on the aboveframework. It. n-

cludes a shaft C1 carrying "a fly-wheel Czwhich l also serves as drive-wheel. The fly-wheel C2 may be channeledas at C3 `to receive the V-.shaped belting generally indicated as C4. The belt or belts employed pass also about adriven'pulley C5.

'Ihe pulley C5 is provided4 with a shaft or axle D 4which rotates inrthe bearings D1 at opposite ends of acylindrical sleeve D2, vwhich sleeve is mounted'on the bracket Ymembers D3, which in turn are rotatably mounted as at D4 upon the angle members D5 associated with 'the frame B. The brackets D3 include split portions D5 bolted together about the cylinder D2 as by the bolts D". The `arc of rotation of the brackets D3 may be limited, as by the stop D8. Associated with the brackets D5, for example, being welded thereto,.is the lever structure D9 with the lever' extension proper D10 which is provided with a spring D11, wl'nch may be secured to any suitable securing means, for'example a link of the chain D12, one link of. which may be secured or welded to an arcuate,` member B3. When the parts .are in the positionas seen` in Figures 2 and 3, Vthev pulley C5 is rotated about the center'D4 in a counter clockwise direction, and this holds the belting C4 tightly about the drive-wheel C2, in driving relationshiptherewith. i i

-It willv be observed, as in7 Figure 3, that the spring rD11 normally urges one pulley away from the other into a driving relationship. It willbe understood, however, that in case the device Vis subjected tov a predetermined overload su'lcient to overcome the strength of the spring .'D11, the spring will give and permit a shortening of the distance between the pulleys, whereby the upper side of the belt will become so looseas to permit slippage to occur. The arrow indicates the direction ofy rotation, the lower belt being `the tight side of thebelt. i

E indicates a guide for theV lower turn of the belt C4. kIt is shown as straight, except for the ends which are downwardly turned' or curved as at E1. It may beA mounteclas on the vbracket member E2. It conforms generally to the location of the lowerreach of the belt-C4 Vwhen it is in driving relationship, but is spaced slightly down- Wardlytherefrom to'prevent frictional contact when driving. E3 indicates an upper belt: guide whichis provided with an arcuate portion E1 conforming generally to the arc of the pulley C5said guides being securedby bracket members E5 to the hinged brackets D3. A The rectilinear guide E3 is spaced away from the upper reach of the belt C4 when Vtheparts are in driving relationship, as-shown in Figure 3. When the operatorre- `C2 of the motor.

Figure 5. i H14 leases the spring D11 from the chain D12 the pulley C5 may swing by its own weight into the position in which it is shown in Figure 4. The guide portions E3 and E4 may engage the belt and cause it to bulge out and take the position in which it is shown in Figure 4. Preferably the belting C4 is moldedto forma. circle and tends to expand, when released, "into" full circular form. 'I-Iowever, it is confined between the guides E, E3 and E4,

and is therefore, constrained to bulge out Aas` shown in Figure 4. This bulging removes it from driven contact with the iiy-whe'el.ordrivewheel The motor may be constantly driven, and the mountingofthe pulleyC5, incooperation with the guides 'E,cE3,.and.E4 actsasa very simple form of clutch.` A main purposeffory permitting release of the belt C4 from driven connection with the drive-whe'elC2' is to permit-the engine to be started. In order to shield `the, `pulleys and belt and for safety means I may provide afgard;plateEGp'whichtmay vbe welded tofthe guidefEl. In .iorder` to :permit .the 2. ready ',inanual-z1movementofthegrinding device asia' whole Irmayfemploy 'the' 'longitudinally'.extending carrying lbars GG whiclr may bewelddworg-otherwise' secured to the'arcuate membersfB; andi which. extend; arsufcientdistancefto permit .a1-pair .of :operators to liftslthe aientirectdevice.' andv rcarry..` it like .ia u sedan chair. LLIzzdo-Jnotxzwislrv to be. limited to:I anyspecificfdetail-:of grinding. member-:butt I .illustrate` .the -fol lowinguas a: practical? exemplifcation'fofa'myn in- Vention. `zllxiindicates a. grinding disciof abrasive material. Itzimayxbe 'confined betweensthetwo clamping'members' H1, .H2 and .the `'clamp muti-H3 which issin'fscrew.. threaded: relationship uwithzthe outeraend H4. .ofi the'sshaft llel-fv'vhichv rotateswithin bearings -Hswithinr at handle' cylinder .lf-I1. THS vkis any ,suitableffsupport for. an a-arcuatei'guard.--fH9 which .carries a handle? H10. H11 israny suitable U f-i'shapedrmembenwhich may` carry' anadditional handle fI-I12. 'Il'ieI shaftI-I5 :is:connected, .Las :by.. a flexible shaft HNF-with" the: shaft Drasiishown in issany suitable surrounding' .flexible cover. f Referring to the form of Figures landQILillustrate fai'devicen:whichrdifferent:meansiare employed-for. moving .thebeltr or: belts .T04 1 intoP-.and outii'of driving relationship with the'. pulley TG2. The.: pulley i305 avisrin .this casemountedluponl xed brackets. orfsupportsgl, whichxfmay: correspond with the membersD3'exceptin that theyfare-'held against-rotation. Therefore, a..the faxes.\ofrota The lb'elt"C4":isv confined fby upper and lower generally rectilineaivsguide: members I1and I2 which arer j oinedbythelarouate'fguide .portionl' I3. The belt C4 being molded to a com-pleteicir'cle;itterids to take :the dotted-1'.lineinposition 'ofi Figure? 8,Y if released. .".Insuch positionv litsisheldrby 'the' guides in su'chfa'shionlas' to cause. it-.toilbulge'outinto -the inoperative position illustrated .in dottedline, outtfoff contactwith the pulley. 1C2.' Inaorcleri1 to effects a -Sdriving connection between-.thepulleys C2'and"C5`Ipro vide belt tighteningfmeansfwhich lInayinclude, for examplefthe idler 'I4' mounted at thefendof the links" I5,.whicli`A are pivoted ask at'I to the up'staridingfxedsupport I7. On. thissup# portisfabracket" or abutment IB whiohlis. adapted to receivethe'lower end of the'locking'-member or dogI I9; `which is pivotedto one ofthe linksIs.

'framejasiat I1 1 and to the link'I5 as'- at 112. The spring' normally 1draws the parts into the'full line 113 indicates a handle associated with the links I5.A

114, indicates a-.short guide .positionedbeynnd the idler I4 and'in line'with. the v4guide 1 2;-

Figures 10 and 11 illustrate a further variation -in.,which the' idler Lis employed to draw outwardly upon the belt C4 in order to tighten it.

The idler. isshownlas mounted upon the extremities of the links L1, which are pivoted to the frame as at L2. .Pivoted concentrically with the idler L are .thelinks or arms'j L3, L4 which are themselves `vpivoted respectively-to pivoted guides L5, L6. A

spring L'7 is employed, for example, in connection Withthecliain' L8 for holding the parts in the full j lineonjoperative position of Figure 10. L9 indicates a locking member pivoted on the links L1, whichmay'bermoved into thedottedy or locking: position in oppositiony to' ther'flockingiaabutmetilil. -It is toebev understocdin; this formJ-as-n the others thefbelt is.y constrained'V by.v the-fguidesao inoperative position. The circularly'formed"be1t positively 4thrusts itself into inoperative position when it is released-within the-spacerdene'dtby f theV guides.

1t-winne realized that-.whereas rhaveishwva practicaland operative device;nevertheless'lmay changes may be made infsize, shape,.:numbemad disposition of parts :without: departin'gffroni 'thespirtof vmy invention. .I,r therefore ,fiwish;'my drawings to be taken: asin-:abroad senserillustrative and diagrammaticyratherthan ass'lin'iit-v ing. mei toithe details of' the deyiceia's herein'dej scribedfandfshown. f 1

The use'and operation ofmyqrinventiorrrareias follows: I

A typical embodiment ofimyvinventionis-a gri'ndingzandacutting machine/:Which -isfparticularly applicable for use on the rails of a railway track. Itmay for example include a' framework, n as shown in Figure 2, balanced'above one: rail,

but ysupported` as ;by vthe transversely.: extending supporting member A1. Since theqcenter lf weight ofthemotoris between'the ltwo raiishe l weight of the motor and the platform upon which itis mounted holds themember A1 'itsinsulating contact A2 the` position which the' parts are shownfiin :Figure f 2. Anf advantage` in -spotting the engine, for example a gasolinereni gine, over onerail, :causes 'the rail: to'v'take 'the vibration of rthe' engine.l `,The drive wheel` C2f :the engine-drives the'pulley D7, whichi'pulley is" inzdirect .driving connection ys'riththe'exible power transmission r`H13 which Vextends f to; :any suitable vtrackvforking member. Ifmightfemploy a= wideY variety of such memberssbut I 'have shown only the Igrindingdisc*-H. VvThe member. is

preferably -housed'by' the .guard H9,i.which1thas toward the fdrivefwhe'el C2i thel guard kE3 takes the position shown-in Figure-4. The tendency-f lthe b'eltC4 ltof'conform'tola circle isfresistd'lbyfthe conning effect of the opposed guides E and E3. As the pulley C has approached the drive wheel C2, the slack of the belt so provided bulges out as shown at the right of Figure 4, out of frictional contact with the constantly rotating drive member C2.

The form of Figures 8 and 9 varies, in that the pulley C5 rotates about a xed axis. The slack is normally taken up by the idler I4. When the idler I4 is moved, against the spring 110, then the bulging laction characteristic of the above described form takes place.

In the form of Figures 10 and 11 the idler L is positioned within instead of without the belt C4, and the guide members L5 LG move with it.

The bulging action, however, is substantially the same.

I claim:

1. In a track working machine, a base frame, means for positioning said frame on a rail of said track, a mo-tor mounted on said frame, the axis of rotation of sai-d motor being parallel with said rail, a balancing connection extending from said frame to the other rail of the track, the frame and the parts thereon being in substantial balance upon the single rail over which they are positioned but overbalanced slightly toward the adjacent rail, a track working driving shaft mounted for rotation about an axis substantially parallel toy the axis of the motor and positioned laterally thereof between the rails, and a carrying frame including transversely positioned upstanding yoke members straddling the motor and tool driving shafts, and a plurality of longitudinally vextending carrying bars secured to said yoke members on opposite sides of the motor axis.

y2. In a track working machine, a base, a plurality of track engaging rollers rotatably mounted on said base, said rollers being provided with axially spaced flanges and being adapted for alignment upon a single rail of a track, a tubular member extending laterally from said base, and extending toward the opposite rail of the track, an insulating contact member upon said tubular member, adapted to contact with said opposite rail, a motor mounted upon said base, the axis of rotation of said motor being parallel with the rail, said motor and base being in substantial balance upon the single rail over which they are positioned, but o-verbalanced slightly toward the adjacent rail, and a carrying frame secured to said base, said frame including generally arcuate members lying in planes at right angles to said rail and connected at their lower` ends to said base, said arcuate members being connected by longitudinal elements extending substantially beyond said arcuate members in each direction, said extending portions being adapted to serve as carrying handles for the track working machine.

3. In a track working machine, a base, a plurality of track engaging rollers rotatably mounted on said base, said rollers ybeing provided with axially spaced flanges and being adapted for alignment upon a single rail of a track, a tubular member extending laterally from said base, and adapted for engagement with the opposite rail of the track, a motor mounted upon said base, the axis of rotation of said motor being parallel with the rail, said motor and base being in substantial balance upon the single rail over which they are positioned, but overbalanced slightly toward the adjacent rail, and a carrying frame secured to said base, said frame including generally arcuate members lying in planes at right angles to said rail and connected at their lower ends to said base, said arcuate members being connected by longitudinal elements extending substantially beyond said arcuate members in each direction, said extending portions being adapted to serve as carrying handles for the track working machine.

4. In a track working machine, a base, a plurality of track engaging double flanged rollers rotatably mounted on said base and aligned upon a single rail of a track, a transverse member extending laterally from said base toward the adjacent rail of the track, a motor mounted upon said base, motor and base being in substantial balance upon the single rail over which they are positioned, but overbalanced slightly toward the adjacent rail, and a carrying frame secured to said base, said frame includinggenerally arcuate members lying in planes at right angles to said rail and secured at their lower ends to the base, said arcuate-members being connected by longitudinal elements, said longitudinal elements having handle extensions substantially beyond the arcuate members.

5. Ina track working machine, a base, a plurality of track engaging double flanged rollers rotatably mounted on said base and aligned upon a` single rail of a track, a transverse member extending laterally from said base toward the adjacent rail of the track, a motor mounted upon said base, motor and base being in substantial balance upon the single rail over which they are positioned, but overbalanced slightly toward the adjacent rail, land a carrying frame secured to said base, said frame including generally arcuate members lying in planes at right angles to said rail and secured at their lower ends to the base, said arcuate members being connected by longitudinalelements, said longitudinal elements having handle extensions substantially beyond the arcuate members, a drive pulley associated with said motor, a driven pulley, laterally spaced from said drive pulley, supported on said base, a driving belt surrounding said pulleys the axes of driving and driven pulleys being parallel and a flexible shaft driven by said driven pulley and a grinding tool at the extremity of said flexible shaft.

6. In a track working machine, a base, a plu-y rality of track engaging double flanged rollers rotatably mounted on said base and aligned upon a single rail of a track, a transverse member extending laterally from said base toward the adjacent rail of the track, a motor mounted upon said base, motor and base being in substantial balance upon thesingle rail over which they are positioned, but overbalanced slightly toward the adjacent rail, and a carrying frame secured to said base, said frame including generally arcuate members lying in planes at right angles to said rail and secured at their lower ends to the base, said arcuate members being connected by longitudinal elements, said longitudinal elements having handle extensions substantially beyond the arcuate members, a drive pulley associated with said motor, a driven pulley, laterally spaced from said drive pulley, supported on said base, a driving belt surrounding said pulleys the axes of driving and driven pulleys being parallel and a flexible shaft driven by said driven pulley and a grinding tool at the extremity of said flexible shaft, and a link upon which said driven pulley is mounted, said link being pivotally supported in relation to said base.

' Y HENRY H. TAI .BOYS.-