US497500A

US497500A - Apparatus for dressing rolls

Info

Publication number: US497500A
Authority: US
Publication date: 1893-05-16
Anticipated expiration: 1910-05-16

Description

(No Model.) sheets-Sheet 1.

G. MESTA.

APPARATUS FOR DRESSING ROLLS.

. Patented May 16,1893.

III I .l

WITNESSES (No Model.) 3 SheetsSheet 2. MESTA. APPARATUS FOR DRESSING ROLLS.

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G. MBSTA.

APPARATUS FOR DRESSING ROLLS. No. 497,500. Patented May 16, 1893.

WITNESSES I INVENTOR t tsn STATE 1 PATENT OFFICE.

GEORGE MESTA, OF PITTSBURG, PENNSYLVANIA.

APPARATUS FOR DRESSING ROLLS.-

SPECIFICATION forming part of Letters Patent N 0. 497,500, dated May 16, 1893.

Serial No; 460,355- (No model.)

T0 00% whom it may concern.-

Beit known that I, GEORGE MESTA, of Pittsburg, in the county of Allegheny and State of- Pennsylvania, have invented a new and useful Improvement in Apparatus for Dressing Rolls, of which the following is a full, clear, and exact description. A

p I shall describe my improvement with reference to the accompanying drawings, t in which- Figure 1 is a plan view of a part of a rolllng-mill plant, provided with my improvement. Fig. 2 shows in end elevation the supplemental engine constituting part of my invention; and Fig. 3 shows the same in side elevation. Figs. 2 and 3 are made on a larger scale than Fig. 1.

In rolling-mill plants,espeoially those adapted for rolling thin sheet-metal, such as the material used in making tin plate, it is frequently necessary to dress the peripheries of the rolls by means of cutting tools, such as those used in lathes. For this purpose it is necessary that the rolls undergoing the operation of dressing be driven at a low rate of speed, and heretofore it has been common practice to employ the usual main engine for so driving the rolls, operating it Very slowly, and generally using a special train of gearing for securing the necessary reduction of speed. The practical difficulty of this mode of operation is that during the dressing of the rolls at one side of the engine all the rolls connected with that engineon both sides must be stopped, and the delay in the operation of the mill thus pccasioned is the source of very considerable oss.

The object of my invention is to overcome the difliculties pointed out above, andto this end it consists in provided the rolls with a supplemental driving-engine so geared as to transmit a slow motion, and arranging this engine so that it may be put into gear and disconnected from the rolls as desired.

It also consists in providing the rolls with such supplemental engine when vthe same is portable and is adapted to be shifted from one side of the rolls to the other.

The advantages of my invention arethat by its use I am enabled to turn and dress the rolls of one part of the plant without stopping the operation of the other rolls.

Referring now to the drawings, 2 represents a line of plate rolls and their housings set at one side of a usual driving engine 3, coupled thereto-by a crab 4, and provided with usual coupling boxes and spindles between the housings. I also show, at the left end of'Fi 1, a second crab 4 connecting the engine with anothersimilar line of rolls, not shown. The

engine B employed for driving the rolls during the dressing operation is shown in Figs. 2 and 3. It may be of suitable type, having a reciprocating piston, and gearing 5, 6, '7, 8, 9, set in the engine-frame and connecting it with the transmitting wheel 10, which is provided with a crab 11, adapting it to be mechanically connected with the neck of one of the rolls to be driven. The engine is set on its bed so that it can be lifted as a whole and transported from place to place by means of a crane or other suitable lifting and carrying device. When so lifted it is adapted to be set upon the shoes 12 of the roll-housing at the end of the line of rolls, and its bed is so shaped that it may fit on the shoes and may be secured detachably thereto by means of bolts or other securing devices 13. I

When it isdesired to dress the rolls at either side of the mill, the engine B is set at the end of that line of rolls, on the housing-shoes of the end rolls, as 'shown'in Fig.1, and is connected by the crab to'the neck of the adjacent roll. The driving-engine being then uncoupled from" that line of rolls, they may be rotated by the engine B at the required slowrate of speed without interfering with the operation of the other rolls of the mill, which may be driven by the main roll-driving englue and operated in the usual manner. If it be desired to dress any one or more of the sets of rolls without the others, the other rolls of the same line on the side next the drivingengine maybe uncoupled therefrom and the rolls in question driven without operating the wholeline. At the end of the roll-dressing operation, the supplemental engine may be uncoupled from the rolls, and may, if desired, be lifted to another part of the mill.

Within the scope of the broad claim of this application it is possible to use, instead of the ably connected by overhead shatting and belts with the said portable gearing.

I claim as new 1. In a rolling-mill plant, the combination of the rolls, a main driving-engine, a second engine, and a set of slow-speed gearing detachably connecting the second engine with the rolls; substantially as and for the purposes described.

2. In a rolling-mill plant, the combination of the rolls, a main driving-engine, and a supplemental engine provided on its frame with slow-speed gearing having a detachable connection enabling it to be coupled with the rolls; substantially as and for the purposes described.

3. In a rolling-mill plant, the combination of the rolls, a main driving-engine, and a supplemental engine provided on its frame with slow-speed gearing having a detachable connection enabling it to be coupled with the rolls, said supplement-a1 engine being portable and having a bed adapted to be fitted detachably to the housing-shoes; substantially as and for the purposes described.

In testimony whereof I have hereunto set my hand this 25th day of October, A.D. 1892.

GEO. MESTA. VYitnesses:

T. W. BAKEWELL, W. B. OoRWIN.