US325559A

US325559A - Daniel mills

Info

Publication number: US325559A
Authority: US
Publication date: 1885-09-01
Anticipated expiration: 1902-09-01

Description

(No Model.)

D. MILLS.

PORTABLE MILLING MAUHINE.

No. 825,559. Patented Sept. 1, 1885.

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UNITED STATES DANIEL MILLS, OF PHILADELPHIA, PENNSYLVANIA, AS SIGNOR TO THE PHILADELPHIA MACHINERY OOMPAXY, OF SAME PLACE.

PORTABLE MILLING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 325,559, dated September 1, 1885.

Application filed January 30, 1885.

To all whom, it may concern:

Be it known that I, DANIEL MILLs, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Portable ldilling-Machines, of which the following is a specification.

My invention consists of a portable millingmachine for milling and dressing the slots of the underground conduits of cable railways, as fully described and claimed hereinafter.

In the accompanying drawings, Figure 1 is a plan View of the machine, and Fi 2 is a side view, partly in section.

In cable railways the slot along the top of the cable-conduit, through which the stem of the grip passes downward from the car, is apt to be irregular and uneven in width,owiug either to defects in construction, expansion, or contraction of the metal or the pressure of the earth on the sides of the tube or conduit.

My invention is designed to dress or mill out the slot to a uniform width; and it consists, essentially, of a car adapted to the track, and carrying an adjustable milling'tool and guide, and devices to be operated by hand or power to drive the tool and traverse the car.

A is the frame of the car, mounted 011 wheels B B of the proper gage for the track, and 011 this car are mounted the millingtool and its operating devices. In the drawings I have shown these devices as arranged to be driven by a motor, D, consisting of a steam-engine and a boiler; but they may be operated by hand by means of suitable crank-handles, as indicated by dotted lines.

To a standard, E, on the frame of the car is pivoted an arm, I carrying at its lower end a rotary milling-tool, M, which occupies a position laterally on the millingcar identical with that occupied by the stem of the grip on the cablecar, so that when the arm F is depressed the edge of the tool M will enter the slot of the tube in the proper position. The arm F is pivoted with a bolt and handled nut, f, adapted to a curved slot in the standard E, whereby the arm F may be secured in any position to which it may be adjusted.

On the arm F, immediately behind the mill ring-tool, is mounted a guidefiuger, G, which (No model.)

projects into the dressed slot of the tube and guides the milling-tool. The latter may be driven from the crank-shaft (l of the engine by any suitable gearing, that shown in the drawings consisting of a pinion, 1, on the said crankshaft, gearing into aspur-whecl, 2, on the pivotpin of the arm F, and to the wheel 2 is secured a pinion, 3, gearing into a spur-wheel, 4, on the arm F, and this spur-wheel I gearsinto a pinion, 5, on the axis of the milling-tool.

In order to slowly traverse the car forward on the track at the same time that a rapid rotary motion is imparted to the millingtool, I employ worm and worm-wheel gearing for transmitting motion from the motor to the rear axle, which gearing can be thrown into and out of action at the will of the operator. In the present case I have shown a wormwheel, 9, on the rear axle of the car, and into this may be geared a worm, S, on ashai't, p, which is mounted in bearings in an adjustable lever, K, and carries at its other end a wormwheel, 7, gearing into a worm, 6, on the motor. The lever K is mounted on a pivot on a standard, Z, on the frame of the car, the center of the pivot being coincident with the center of the worm 6, so that by the movement of the lever K on this center the worm 8 may be thrown into and out of gear with the wormwheel 9 without disengaging the worm 6 and wheel 7. A bolt and nut, it, passing through the lever and a curved slot in the standard E on the car permit the securing of the lever K in any position to which it may be adjusted.

When the milling-car has been transported to the place where it is to be used, the devices are set in operation by hand or power, and the milling-tool M is depressed into the slot of the cable-tube, and then the worm 8 may be thrown into gear wit-h the wheel 9, so as to traverse the car forward as the milling operation proceeds.

I claim as my invention- 1. The combination of a car mounted on wheels adapted to traverse the track of a cable railway with an adjustable milling tool and driving-gear carried by said car, substantially as set forth.

2. The combination of a car mounted on wheels adapted to traverse the track of a cable of the ear, and devices, substantially as derailway with an adjustable arm carrying a scribed, for throwing the latter gear into and milling-tool and driving-gealyland a guide-finout of action. ger adapted to enter the slot of the cable-tube, In testimony whereof I have signed my name 5 substantially as set forth. to this specification in the presence of two sub 1 3. The combination of the ear adapted to scribing witnesses.

traverse the track of a cable railway and a motor and milling-tool mounted thereon with i Vitnesses: gearing for transmitting motion to the tool, I HUBERT HoWsoN,

1o gearing for transmitting motion to the wheels HENRY HOWSON, Jr.

DANL. MILLS.