US767730A - Rolling-mill feed mechanism. - Google Patents

Description

PATENTED AUG. 16, 1904.

C. W. BRAY. ROLLING MILL FEED MECHANISM.

APPLICATION FILED MAY 22! 1903.

2 BHEBTS-8HEBT 1.

N0 MODEL.

INVEN'I'OR d/mwwm,

No. 767,730. I PATENTED AUG. 16, 1904. O. W. BRAY. ROLLING MILL FEED MECHANISM.

APPLICATION FILED MAY 22. 1903. N0 MODEL. 2 SHEETS-SHEET 2,

WITNESSII INVENTOR UNITED STATES Patented August 16, 1904.

PATENT OFFICE.

CHARLES W. BRAY, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO AMERI- CAN TIN PLATE COMPANY, A CORPORATION OF PENNSYLVANIA.

ROLLING-MILL FEED MECHANISM.

SPECIFICATION forming part of Letters Patent No. 767,730, dated August 16, 1904.

Application filed May 22. 1903. Serial No. 158,221. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES W. BRAY, of

Pittsburg, Allegheny county, Pennsylvania, have invented a new and useful Rolling-Mill Feed Mechanism, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a sectional side elevation of the feed mechanism. Figs. 2 and 3 are respectively a front elevation and an end elevation of the pivoted catch on the rear arm of the feeding mechanism. Fig. 4 is a side elevation of a catch which may be used on the middle arms. Figs. 5 and 6 are respectively a side elevation and a front elevation of the catch which I show applied to the front arm. Fig. 7 is a plan view of the apparatus, and Fig. 8 is a vertical cross=section on the line VIII VIII of Fig. 1.

The purpose of my invention is to provide means for feeding plates, such as tin-plate bars, which as they issue from the rolls are too short to be received directly upon an ordinary feed-table, and it effects the feeding of such plates by moving arms, which move back and forth and in their forward motion engage the plates and feed them.

In the drawings, 2 2 represent a set of rolls of a continuous mill, and 3 3 a succeeding set in tandem therewith. Between these rolls is a table 4, preferably composed of bars or rods on which the plate can travel, and 5 is a similar table, which leads to the rolls 2. The table 4 at its end next to the rolls 2 is somewhat inclined downwardly, so that the emerging metal will be delivered with the aid of gravity clear of the rolls and within the path of and in front of the catches,which I describe below.

Feeding mechanism is employed for feeding the plates to the rolls 2 and also for feeding the plates to the rolls 3 after they have been delivered from the rolls 2. In the form shown in the drawings it consists of pusherarms 6 7 8, arranged in pairs and pivoted on shafts 6 7 8, supported by the housings of the rolls, the shafts 7 and 8 being shown as supported by brackets 9 and the shaft 6' being the catch 16 a similar pawl, but provided with a spring 16, which tends to restore it to normal position after it has been displaced, and the catch 17 I show as a gravity-catch mounted on a shaft 18, which extends between the arms 8 and formed with a slot and key 6 0, which permit a limited oscillation of the pawl. As the range of carrying motion of the arms 8 is'the longest, I prefer to set the shaft 18 in slots 19 at the lower ends of the arms 8 and to guide it by a slotted guide 20, which extends parallel with the table 4.

In use of the apparatus the plates are brought to the table 5 by a conveyer, which may be constituted by an endless chain 21, and are delivered thereby upon the table 5 in proximity to the rolls 2, or the piece maybe delivered into the path of the arms 6 by the operator. The arms 6 7 8 oscillate back and forth, as above described, and in the backward motion of the arms 6 the catches 15 will yield forwardly, so as to slip over the plate; but on the forward movement of the arms these catches are held by engagement with the arms from turning backward, and engaging the rear end of the plate they will feed it forward positively to the rolls. The plate is then delivered from the rolls 2, and as the arms 7 oscillate the catches 16 slip over the plate in the rearward motion of the arms and in their forward motion engage'the edge of the plate and move it forward within the limits of motion of the arms 8. The pivot-ed catches 17 of the arms 8 then engage the plate in like manner and move it forward to the rolls 3. It will thus be seen that the plate is fed to the rolls by a very simple and effective combination of mechanism which is easy to construct and easy to keep in repair, and the positive and accurate feeding which it imparts to the metal renders this operation desirable and efficient.

Within the scope of my invention the apparatus may be lnodified. Thus the form and construction of the catches may be changed and other modifications may be made, as will be apparent to those skilled in the art.

I claim- 1. A tandem mill having two sets of rolls, an inclined table leading from the first set, and an automatic feed mechanism arranged to transmit the metal from the incline toward the second set of rolls; substantially as described.

2. A mill having two or more sets of rolls arranged in tandem, a plurality of swinging arms arranged in tandem between two of the sets and having catches engaging the piece, one arm being arranged to receive and transmit the metal from the preceding set of rolls and the other arm being arranged to transmit it forwardly to the next set; substantially as described.

3. In a continuous mill, feeding mechanism comprising feeding-arms arranged to feed the metal into one set of rolls, an inclined table leading therefrom,and arms working in unison with the feeding-arms and adapted to transengage the rear end of the plate and move it forwardly, a second set of arms arranged to engage the rear end of the plate advanced by the first arms and feed it to the second set of rolls,and connections arranged to continuously drive both sets of arms; substantiallyias described.

5. In apparatus for feeding bars or plates to rolls, a table having side guides, a plurality of rear pushers arranged to move the plate forwardly between the guides, and connections for contin uously driving the pushers; substantially as described.

6. The combination with the feed-table hav-' ing longitudinal supports and side guides, of an overhead swinging frame, having depending pushers arranged to force the bar forward, and connections arranged to continuously swing the frame back and forth; substantially as described.

7 A tandem mill having swinging pushers in front of a set of rolls, swinging pushers between said set and the next set of rolls, and connections arranged to continuously swing said pushers back and forth; substantially as described.

In testimony whereof I have hereunto set my hand. CHARLES W. BRAY.

Witnesses: JOHN MILLER,

H. M. CORWIN.

Images