US808563A - Machine for facing pedestal-legs of locomotive-engine frames. - Google Patents

Description

No. 808,563. PATENTED DEG. 26,1905. G. T. MOORE.

MACHINE FOR FACING PEDESTAL LEGS OF LOOOMOTIVE ENGINE FRAMES.

' APPLICATION FILED mm: 2, 1905.

3 SHEETS-SHEET 1.

No. 808,563. I PATENTED DEO.Z6,1905.

' G. T. MOORE.

MACHINE FOR FACING PEDESTAL LEGS OF LOGOMOTIVE ENGINE FRAMES.

APPL IGATION FILED JUNE 2, 1905.

3 SHEETS-SHEET 2.

No. 808,563 PATENTED DEG.26, 1905. G. T. MOORE.

MACHINE FOR FACING PEDESTAL LEGS OF LOOOMOTIVE ENGINE FRAMES.

APPLICATION FILED JUNE 2, 1905.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Dec. 26, 1905.

Application filed June 2, 1905. Serial No. 263,468.

To wZZ whom it may concern:

Be it known that I, GEORGE T. MOORE, a citizen of the United States, and a resident of Roanoke, county of Roanoke, State of Virginia, have invented certain new and useful Improvements in Machines for Facing Pedestal-Legs of Locomotive-Engine Frames, of which the following is a specification.

The object of my invention is to provide a machine for facing off or truing the pedestallegs of locomotive-engines when from wear or other cause they become cut,worn, or out of true, this being an important feature of locomotive repair-work, as defects in this particular cause jars and vibrations, which ultimately result in injury to the frames and mechanism of the engine. The work is usually performed by hand, and when thus performed is both tedious and laborious; but my improved machine is intended to be operated by power and enables the work to be better done and in much less time than by hand.

The machine is portable and can be readily adjusted to its proper position in respect to the pedestal-jaws while the frames are in their position on the locomotive, and it enables both the vertical and inclined pedestaljaw to be faced off completely without removing the machine from the frame after it has been once adjusted thereon.

In the accompanying drawings, Figure 1 is a side elevation representing the machine applied to the frame of a locomotive with the cutter in position for facing off the vertical pedestal-jaw. Fig. 2 is a face view of the machine detached from the frame. Fig. 3 is a longitudinal section of the machine on the line a a, Fig. 2. Fig. 4 is a view, partly in plan and partly in sectional plan on the line b b, Fig. 2; and Figs. 5, 6, 7, and 8 are detail views of certain modifications hereinafter referred to.

Referring to the drawings, in which the same reference characters relate to the same or corresponding parts in all the views, 1 represents part of a locomotive, and 2 and 3 depending pedestallegs of the same whose inner or adjoining faces have to be trued. The machine for efiecting this purpose is secured to the frame by upper and lower clamps, the upper clamp comprisingayoke 4, with clamping-screw 5, the lower end of each leg of said yoke being hooked for the reception of a pin 6, projecting from the side flange or leg of a yoke shaped plate 7, the latter bearing against the under side of a top bar of the frame between the pedestal-legs, the legs of said yoke-shaped plate being adapted to embrace the locomotive-frame from beneath and the clamping-screw 5 bearing upon a block orshim 8, which rests upon the top of said frame, as shown in Fig. 1, the side flanges or legs of the plate 7 being also provided with clamping-screws 9, which bear against the opposite sides of the frame.

Mounted so as to turn around a vertical aXis on the under side of the plate 7 is a plate 10, and to the latter is secured a plate 11, which has a central depending lug 12, fitted to the slotted upper end of a facingbar 13, which is pivoted to said lug by means of a horizontal pivot-pin :r, as shown. in Fig. 3, so that said facing-bar can be adjusted either into a position parallel with the vertical face of the pedesta1-leg 2 or into a position parallelwith the inclined face of the pedestal-leg 3.

The lower end of the facing-bar 13 is secured in position by means of a two-part yoke, one member 14 of said yoke embracing the lower portion of one of the pedestal-legs and being secured thereto by means of clamping-screws 15, bearing on the side of the pedestal-leg, and a bolt 16 for drawing together the opposite jaws of the yoke member.

The yoke member 17 has jaws embracing the facing-bar and having slots 18 for the reception of bolts 19, which may be adapted to any one of a series of openings 20, formed in the lower portion of the facing-bar, depending upon the length of the pedestal-legs and the conse uent vertical position of the lower clamping evice in respect to said facing-bar. The yoke member 17 also has a slot 21 for the reception of a bolt 22, whereby it is secured to the yoke member 14, so that said yoke member 17 can be readily adjusted laterally in respect to the facing-bar.

Mounted so as to be immovable vertically, but free to rotate upon the facing-bar 13, is a feed-screw 23, which engages with a half-nut 24, secured, bymeans of bolts 25, to aslide 26, which is thus caused to move vertically upon the facing-bar 13 as said feed-screw is rotated.

Mounted upon the slide 26 so as to be free to move transversely across the same is another slide 27, and mounted upon the latter so as to be free to move from and toward the facing-bar 13 is a third slide 28, these slides being constructed and operated in a manner similar to ordinary lathe-slides. The slide 28 provides a bearing for the conical spindle 29 of the rotary cutter-head 30, which is provided with angularly-disposed cutters 31, the rear end of the spindle having a bevelwheel 32, which meshes with a bevel-pinion 33 on a transverse shaft 34, the latter being mounted in suitable bearings on the'slide 28 andprojecting beyond said slide at each end, as shown in Figs. 2 and 4, so that power may be applied to either end of the shaft by means of a flexible shaft or other convenient device in order to impart rotative movement to the cutter-head 30, and thus cause its cutters 31 to true that face of the pedestal-leg upon which they are operating.

By the use of the transverse slide 27 the cutter-head can be moved across the face of the pedestal-jaw, so as to gain access to the corners not operated upon by the first cut of said cutter-head, and the use of the slide 28 permits adjustment of the cutter-head from and toward the face of the jaw, so as to regulate the depth of cut or make a succession of cuts, either of these operations being effected without change in the position of the facingbar, and by reversing the bar after one pedestal-leg has been faced and changing its angle to accord with that of the face of the other pedestal-leg the latter may be operated upon without requiring any change in the position of the clamping structure, whereby the facing-bar is secured to the upper portion of the locomotive-frame.

In order to impart movement to the feed screw 23, the shaft 34 has an eccentric 35, whose sleeve is engaged by bolts 36, carried by the jaws of a yoke 37, the latter having a forked stem 38, which engages an arm 39, having a hub which is mounted between projecting lugs 40 on the slide 26, and carries a spline engaging with a groove in a vertical shaft 41, mounted at its upper andlower ends in suitable bearings on the facing-bar so that it is free to turn therein.

At its lower end the shaft 41 has a toothed segment 42, whish meshes with a similar seg ment 43, hung upon the hub of a ratchet- Wheel 44, which is secured to the lower end of the feed-screw 23, as shown in Fig. 3, said segment 43 having a projecting arm which carries a pivoted and spring-actuated pawl 45, normally in engagement with the teeth of the ratchet-wheel 44, but capable of being thrown out of engagement therewith when it is desired to rotate the feed-screw rearwardly by hand in order to move the slide-26 rapidly from one position to another.

The cutterhead can be unscrewed from the spindle 29 and a solid or other form of cutter placed thereon, if desired, for a particular variety of work. In fact, many minor changes in the construction of the device may be made without departing from the general character of my invention.

Instead of making the vertical shaft round, which requires a spline and groove, I may dispense with the latter elements by making this shaft square in cross-section, as shown at 41', Figs. 5 to 8, the hub of the arm 39" having a square hole fitting said shaft, as shownin Figs. 7 and 8. I may also slightly modify the pawl-and-ratchet feeding mechanism for the feed-shaft 23, as shown in Figs. 5 and 6, wherein the segments 42 and 43 are replaced by arms 42 and 43, respectively, the former being placed above the arm 43 and is connected to the lower end of the shaft 41 This arm 42 is provided with a slot46, so that it may be moved in or out, and fastened to the end of the shaft 41 by the nut 47. The arm 42 as above indicated, is placed above and in contact with the arm 43', the latter of which is actuated bythe arm 42 through the medium of a pin 49 passing through the slot 48. By moving the arm 42 in or out along its slot the motion given to the projecting arm carrying the pawl 45 on the arm 43 is increased or decreased, thereby increasing or decreasing the feed imparted by the pawl to the ratchet-wheel 44.

I claim. as my invention-- 1. In a machine for facing the pedestal-legs of locomotive-frames, the combination of a facing-bar, means for securing the same to the frame between the pedestal-legs and in a position parallel with the leg to be faced, a slide on said bar, a cutter-head carried by said slide, means for rotating said cutter-head, and means for traversing the slide on the facing-bar, substantially as described.

2. In a machine for facing the pedestal-legs of locomotiveframes, the combination of a facing-bar, clam ing devices mounted on the frame and to which said bar is pivoted, so that it can be adjusted arallel either with a straight or an inclined ace of a pedestal-leg, a slide on said bar, a cutter-head mounted on said slide, means for rotating said cutterhead, and means for traversing the slide on said facing-bar, substantially as described.

3. In a machine for facing the pedestal-legs of locomotive-frames, the combination of a facing-bar, clamping devices for securing the same to the frame in a osition parallel with the face of the pedesta -leg, a slide on said facing-bar, a cutter-head, means for rotating the latter, means for traversing a slide on the facing-bar, a slide carrying the cutter-head spindle, and a slide mounted upon the facingbar slide and carrying the cutter-head slide, one of said slides being adjustable across the facing-bar slide and the other being adjustable from and toward the said facing-bar, substantially as described.

4. In a machine for facing pedestal-legs of locomotive-frames, the combination of a facing-bar carrying a cutter-head, a clamping device engaging the u per portion of the frame, and having a orizontal pivot to IIO which the up er end of the facing-bar is hung, and a clamp for the lower end of the facing-bar, said clam being slotted to permit of the securing 0 the facing-bar thereto in different positions of adjustment, substantially as described.

5. In a machine for facing the pedestal-legs of locomotive-frames, the combination of a facingbar, a rotary cutter-head carried thereby, a clamp engaging the upper portion of the frame, means for hanging the facingbar thereto so that it is capable of rotation about its vertical axis, and means for secur ing the lower portion of the facing-bar to the frame in either of its positions of adjustment, substantially as described.

6. In a machine for facing the pedestal-legs of locomotive-frames, the combination of a facingbar, a rotary cutter-head carried thereby, a clam ing device engaging the upper portion of t e frame and having both a vertical and horizontal pivotal connection with said facing-bar, and means for clamping the lower portion of the facing-bar to the frame in either position of adjustment of the same, substantially as described.

7. In a machine for facing the pedestal-legs of locomotive-frames, the combination of a facing-bar, a rotary cutter-head carried thereby, a clamping device for the upper end of said bar, said clamping device comprising a yoke with hooked legs' and clamping-screw, and a late having pins for engaging the hookedqegs of the yoke, substantially as described.

8. In a machine for facing the pedestal-legs of locomotive-frames, the combination of a facing-bar, a rotary cutter-head carried thereby, a clamping device for the upper end of said bar, said clamping device comprising a yoke-shaped plate the legs of which are adapted to embrace the sides of a locomotive -frame from beneath, and clampingscrews passing through the legs of the yoke for engaging the sides of the frame, substantially as described.

9. In a machine for facing the pedestal-legs of locomotive-frames, the combination of a facing-bar, means for clamping the same to the frame, a slide mounted upon said bar and carrying a rotary cutter-head, a drive-shaft therefor, a feed-screw mounted on the bar and engaging with a nut on said slide, a rockshaft also mounted on the facing-bar, means whereby rocking movement is im arted to said shaft from the driving-shaft o the cut ter-head, a ratchet-wheel on the feed-screw, a pawl engaging said ratchet -wheel, and means whereby the rock-shaft is caused to impart movementto said pawl, substantially as described.

10. In a machine for facing the pedestallegs of locomotive-frames, the combination of a facing-bar, means for clamping the same into position with the frame, a slide on said bar, a rotary cutter-head mounted on said slide, a drive-shaft for said cutter-head, a rock-shaft mounted on said facing-bar, a feed-screw engaging said slide, an eccentric on the drivingshaft, a connection pivoted at one end to the eccentric-sleeve and at the other end to the rock-shaft arm, and connections between said feed-screw and drivingshaft substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE T. MOORE.

Witnesses J AMES MEoREDY, G. T. SEMEN.

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