US751945A - Device for truing journals of locomotive driving-wheels - Google Patents

Description

No. 751,945. PATBNTED FEB. 9, 1904. H. P. SOATGHARD & M. 12.. WATERS, DEVICE FOR TRUING JOURNALS 0F LOGOMOTIVEDRIVING WHEELS.

APPIJIUATION FILED OCT. 19. 1903. I

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v No. 751,945. PATENTED FEB. 9, i904.

H. F. SGATGHARD & M. B. WATERS. DEVICE FOR TRUING JOURNALS 0F LOUOMOTIVB DRIVING WHEELS.

APPLIGATIOH FILED 001. 19. 1903.

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No. 751,945. v PSTENTED FEB. 9, 1904.

H. P..SOATCHARD &M. B. WATERS. DEVIGE FOR TRUING JOURNALS 0P LOOOMOTIVE DRIVING WHEELS.

APPLICATION FILED OUT. 19. 1903. H0 MODEL. 3 SHEETS-SHEET 3.

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PATENT 'OFFICE.

HERBERT F. SCATCI'IARD AND MICHAEL B. WATERS, OF ROANOKE, VIRGINIA.

DEVICE FOR TRUING JOURNALS F LOCOM OTIVE DRIVING-WHEELS.

SPECIFICATION formingpart of Letters Patent No. 751,945, dated February 9, 1904,

Application filed October 19, 1903. Serial No. 177,682. (No model.)

To all whom it may concern:

Be it known that we, HERBERT F. SGATOH- ARD and MICHAEL B. WATERS, both citizens of the United States, and residents of Roanoke, Virginia, have invented certain Improvements in Devices for Truing Journals of Locomotive Driving-Wheels, of which the following is a the wheels to a shop. This object we attain worn after use.

by providing a portable cross-head traversing longitudinally on a frame which is secured to the driving-wheels, said cross-head having a separable and rotatable sleeve embracing the axle and carrying the turning-tool, which can be made to act upon either of the journals. The cross-head also carries mechanism for traversing it and for rotating said sleeve.

In the accompanying drawings, Figure 1 is a view illustrating a journal-truing device constructed in accordance with our invention as it appears when applied to the driving-wheels and axle. Fig. 2 is a transverse section of the same on the line a; a, Fig. 1, and on a larger scale than said figure. Fig. 3 is a sectional plan view on the line 5 b, Fig. 2; and Fig. 4 is a plan view of one of the elements of the device.

Referring in the first instance to Fig. 1 of the drawings, 1 1 represents. pair of locomotive driving-Wheels, and 2 the axle of the same, said axle having just inside of each wheel a journal 3, which it is the purpose of our invention either to turn up true in the first instance or to true up after they have become Secured to the drivingwheels is a frame comprising end bars 4 4 and a pair of cross-rods 5 and 6, the end bars 4 having center screws 7, which engage with the opposite ends of the axle 2 in line with the axis of the same. The frame comprising the driving-Wheels.

bars 4 and rods 5 and 6' is therefore mounted upon the driving-wheel structure and is prevented from rotating by contact of said rods 5 and 6, or either of them, with spokes of the Bars 4 of different lengths may be used to suit the size and character of the driving-wheels, or the bars may have a 8 and 9 separable from each other, these mem-' bers being so formed as to provide a cylindrical chamber in which is mounted a separable two-part sleeve 10 11, said parts of the sleeve being bolted or otherwise suitably secured together and provided at the ends with flanges 12, whereby they are longitudinally confined to the cross-head, but are free to rotate therein and around the axle. The members of the separable sleeve are centrally recessed for the reception of a combined worm and bevel wheel 13, likewise by preference made in two parts in order to facilitate its application to the sleeve and suitably secured to the latter. The bevel-toothed portion of the wheel 13 meshes with-a bevel-pinion 14 on a spindle 15, which is mounted in suitable bearings in the cross-head and is intended to be driven by any suitable form of power-actuated motor or by hand when such motor is not available. In the present instance the spindle is intended to be motor-driven and outer support for the motor-casing is provided by a set-screw 16,

which is adapted to a threaded opening in a bracket 17, the latter being mounted upon the lower member 9 of the cross-head, as shown in Figs. 2 and 3. The motor is introduced between the set scr'ew 16 and the spindle 15, the rotating member of the motor serving to drive said spindle. The motor may be either an electric motor or a motor driven by air,

steam, gas, or other fluid, as may be found most convenient. The worm-teeth on the wheel 13 mesh with a worm-wheel 18, which is adapted to a suitable chamber in the lower member '9 of the cross-head and is mounted upon the lower end of a shaft 19, which passes upwardly through the tubular shaft or spindle 20 of a pinion 21, the upper end of the shaft 19 being threaded for the reception of a handled nut 22, which bears upon the upper end of the tubular shaft 20, so that by tightening said nut the worm-wheel 18 can be spur-wheel also meshes with a pinion 25, likewise free to turn upon a stud depending from the frame 24. The said frame 24 is mounted so as to be free to swing upon the shaft 20 and has a stud 26 projecting through a segmental slot 27 in the upper member 8 of the crosshead, the projecting portion of said stud 26 being threaded for the reception of a handled nut 26, whereby the frame 24 can be caused to assume different angular relations to the shaft 20 and can be secured in either of its different positions of adjustment. When the frame is in the position shown in Fig. 3, the spur-wheel 23 meshes with a rack 29, formed on or secured to the supporting-rod 6 of the fixed frame. Hence rotation of the spindle 15 would have the double effect of imparting rotating movement to the sleeve 10 11 and causing the cross-head to travel upon the supporting-rods 5 and 6, the direction of this movement being dependent upon the direction of rotation of the spindle 15. By swinging the frame 24 so as to carry the spur-wheel 23 out of engagement with the rack 29 and bring the pinion 25 into engagement with said rack the direction of movement of the cross-head may be reversed without reversing the direction of movement of the spindle 15. Hence a cutting-tool mounted upon the rotating sleeve can be traversed back and forth across the journal of the axle without interfering with its continuous movement of rotation.

The separable sleeve 10 11 has at each end an adjustable tool-carrier 30, guided on an extension 31 of the sleeve, so as to be movable from and toward the axle, any suitable feed-screw device being employed for thus traversing the tool-holder and the latter being provided with any available form of clamp for the tool. When one of the journals has been properly trued by means of a tool carried by the tool-holder at one end of the rotating sleeve, the tool is shifted to the tool-holder at the opposite end of the sleeve, and the cross-head is then shifted on its guides, so as to cause said tool to act upon the opposite journal.

' The shaft 20 is provided with a hand-wheel 32, whereby the traversing of the cross-head may be effected by hand when desired, the worm-wheel 18 in this case being first freed from its frictional connection with the pinion 21.

The cross-rod 5 is applied to a bearing 33, adjustable on the under side of the member 9 of the cross-head, so as to permit of the use of rods 5 and 6, located at different distances apart.

Having thus described our invention, we claim and desire to secure by Letters Patent- 1. The combination in a device for truing the journals of locomotive driving-wheels, of a frame, a cross-head mounted upon transverse rods of said frame, a separable toolcarrying sleeve rotatably mounted in said cross-head, and mechanism carried by the cross-head for rotating said sleeve, said mechanism having a projecting power-receiving spindle and an opposed support for a motorcasing, substantially as specified.

2. The combination in a device for truing the journals of locomotive driving-wheels, of aframe, across-head mounted upon transverse rods of said frame, a separable tool-carrying sleeve rotatably mounted in said cross-head, and mechanism for simultaneously rotating said sleeve and traversing the cross-head upon its supporting-rods, said mechanism comprising a combined worm and bevel wheel mounted on the sleeve, a power-receiving shaft with pinion engaging said bevel-wheel, a rack on one of the supporting-rods of the frame, and gearing interposed between the worm-wheel and said rack, substantially as specified.

3. The combination in a device for truing the journals of locomotive driving-wheels, of a frame, a cross-head mounted upon transverse rods of said frame, a separable tool-carrying sleeve rotatably mounted in said cross-head, and mechanism for simultaneously rotating said sleeve and traversing the cross-head upon its supporting-rods, said mechanism comprising a combined worm and bevel wheel mounted on the sleeve, a power-receiving shaft with pinion engaging said bevel-wheel, a rack on one of the supporting-rods, and gearing interposed between the worm-wheel and said rack, said gearing having as an element, a swinging frame carrying two spur -wheels either of which may, by movement of the frame, be caused to engage with the rack, substantially as specified.

4. The combination in a device for truing the journals of locomotive driving-wheels, of

the supportingframe, the cross-head, the names to this specification in the presence of tool-carrying sleeve, rotatably mounted theretwo subscribing Witnesses. 1n, and havmg a Worm thereon, a Worm-Wheel HERBERT F. SUATOHARD.

meshing with said Worm, gearing driven by g 5 said Worm-wheel, and a rack on one of the MICHAEL WATERS supporting-rods for the cross-head in mesh Witnesses: with said gearing, substantially as specified. R. C. ROYER, I

In testimony whereof We have signed our LAWRENCE S. DAVIS.

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