US619036A

US619036A - Wire-rod mill

Info

Publication number: US619036A
Authority: US
Publication date: 1899-02-07
Anticipated expiration: 1916-02-07

Description

N0. 6|9,036. Patented Feb. 7,1899.

WITNESSES INVENTOR TN: mama Emis sa, Mmmm n c..

UNITED STATES PATENT EETCE.

PATRICK L. DAY, OF CLEVELAND, OHIO.

WIRE-ROD IVIILL.

SPECIFICATION forming part of Letters Patent No. 619,036, dated February 7, 1899.` Application iled February 8, 1898. Serial No. 669,488. (No model.)

T LZ/Z whom it may con/067%;

Be it known that I, PATRICK L. DAY, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented a new and useful Improvement in Wire-Rod Mills, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this speciiication, in whichv Figure 1 is a plan view showing one form of a Wire-rod mill constructed in accordance with my invention. Fig. 2 is an end elevation of the same, looking in the direction of the arrow :t of Fig. 1; and Fig. 3 is a detail view showing the connections for operating the stop upon the feed-table.

' of conveying-rollers a b vand a trough o.

f By my invention I provide a mill capable of` operation with less labor than the Garrett mill,'which is the best-known type at present in use, and of producing a greater output and more perfectly formed rods than is possible with mills heretofore known, either of the Garrett type or of the continuous type. I eiect this result by dividing the finishingtrain into two separate continuous trains and placing one or more loop-rolls between these parts of thehnishing-train. By this arrangement I overcome the common difficulties incident to continuous mills-namely, that they cause the finishing of the rod when too hotand I also overcome the difticultydue to the overfilling of the grooves of the rolls by the last end of the rod, which occurs in continuous mills because of the less stretching and elongating which occurs at the last end of the 'rod and which unless prevented would produce a finned and bad product. Furthermore, the arrangement of my mill enables me to regulate at any desired point the speed of the inishing-rollsa thing which lis impossible in continuous mills as heretofore constructed. The practical advantages which result from these facts will be appreciated by those skilled in the art of rod-rolling.

In the drawings, A represents a continuous train of rolls 2 3 4 5, which are the roughingrolls, and between which are arranged a series B is a second continuous set of rolls 6 7 8 9, and between the sets B and A is a line of conveying-rollers d. The rollers are adapted to convey the metal rod from the rolls 5 to the rolls 6 and are provided with surface guiderails, by which the metal may be directed to any one of the several passes of the rolls 6. For directing the metal to the proper one of said guides l employ between the rolls 5 and the ends of the rollers d a swinging guidetrough e, which may be pivoted at a point f.

Succeeding the continuous set of rolls B is a pair of rolls 10, arranged end to end relatively to the rolls 9 and to the rolls 11 of a continuous train of rolls C, and the rod as it comes from the rolls 9 passes through the rolls 10 and -11 in loops, and thence passes through the successive rolls 12 18 14; 15 of the continuous train C.

Succeeding the continuous train C is a pair of rolls 16, to which the rod passes in a loop from the rolls l5, and succeeding the rolls 16.

is a set ofy continuous rolls D, comprising rolls 17 18 19, to which the rod passes in a loop from the rolls 16. From the rolls 19 the rods pass to the reels, which may be located in any convenient position.

R is a repeater arranged to take care of a square loop between the continuous train C and the rolls 16, it being 'understood that the rod is converted alternately from oval or diamond section to a square section in the ordinary manner. y

The various pairs of rolls may be driven by any suitable connection with driving mechanisms or motors.

Whenever it is desired in the operation of the mill, the rod after it has passed the set of rolls A may be stopped on the line of rollers d for the desired length of time by dropping the stop or gate 20, which is connected by a wire or chain 2l to a handle 22, located at the point where the sticker-in stands near the rolls l0, and in this way cobbles and scrap may be prevented from forming in cases where the advance rolls of the mill are not ready to receive the rod. The alternation of the loop arrangement of rolls with the continuous trains of rolls is a great advantage, because it reduces and takes out the surplus amount of stock from the rear end of the rod occasioned inevitably in the continuous trains and prevents, in great part at least, the iinning of the rod and the consequent waste grooves.

train.

By reason of the arrangement of the iinishing-train of rolls D the sticker-in, who stands in front of the rolls 17, if he sees that the end of the rod fails to enter properly either of the

rolls

18 and 19 or the reels may cut off the rod and introduce the severed end into another groove. In this way frequent source of waste by scrap is prevented.

I have indicated on the drawings by an X the position where a man may stand to reflex the oval rods to form the loops and by circles O places where shears may be put to shear off the end of the rod.

In cases where the billet is supplied to the mill of suiciently small cross-section the train of rolls A may be dispensed. with,` or where the larger size of billet than afour-inch billet is supplied to the mill additional rolls may be added to the train A in order to provide for such greater section.

"It will be seen that instead of using one continuous train for the finishing-train, such as shown in the United States Patent to T. W. Fitch, No. 435,815, dated September2, 1890, I have divided this finishing-train into two separate continuous trains and placed a looptrain between these parts of the finishingl thus avoid the trouble which has always occurred by reason of the rod not properly entering one or more of the latter passes of the continuous finishing-train, since by my improved arrangement the rod is inserted by hand into the first pass of the mill D, and the trouble thus avoided. The looptrain between these parts of the continuous iinishing-train reduces the speed of the rod to a point where it may be seized and inserted in the first set of rolls of the train D.

Many variations in the arrangement of the rolls and their driving mechanism may be made without departing from my invention, since What I claim is- 1. A rod-mill having a continuous train, a finishing-train divided into separate continuous trains, and loop-rolls both before the first part of the finishing-train and between the parts of the finishing-train', substantially as described.

2. A rod-mill having a continuous roughing-train, an intermediate continuous train, and a inishing-train divided into separate continuous trains, and loop-rolls between the intermediate train and the first part of thek continuous train, and between the parts of the finishing-train; substantially as described.

3. A rod-mill having two continuous trains of rolls arranged in line with intermediate `positively-driven feed mechanism between them, said feed mechanism havinga stop under the control of the operator, a finishingtrain divided into two continuous trains, and loop rolls between the second continuous train and the first part of the finishing-train and between the two parts of the finishingtrain; substantially as described.

In testimony whereof I have hereunto set `my hand.

PATRICK L. DAY.

Witnesses:

THos. E. Preo'rr, H. A. WILLIAMS.