US67003A

US67003A - Chables w

Info

Publication number: US67003A
Authority: US
Publication date: 1867-07-23
Anticipated expiration: 1884-07-23

Description

@nitrb' gram gaunt @ffirt.

CHARLES W. WAILEY, OF NEW ORLEANS, LOUISIANA.

Letters Patent No. 67,003, dated July 23, 1867.

DEVICE FOR PULLIN G METAL HOOPS FROM THE FINISHING-ROLLS 0F ROLLING-MACHINES.

L tIgt gtlphule turret in in flgett l -slim aglattut mm making putt nf flgt arms.

TO ALL WHOM I'll MAY CONCERN:

Be it known that I, CHARLES W. WAILEY, of the city of New Orleans, parish of Orleans, and State of Louisiana, have invented a certain new, useful,and improved Machine for Pulling Hoop Iron from the Finishing Rolls of Rolling-Mills; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being bad to the annexed drawings, in which- Figure 1 is a top view of the machine.

Figure 2, a side view, and

Figures 3, 4, 5, sectional views of certain parts thereof.

In all rolling-mills as at present operated hoop iron, as it passes through the last or finishing-rolls, is caught with a pair of tongs by a man who runs away with it as fast as it comes through the rolls, with a view to keep it straight; but it is self-evident that, however practised the man'may be in the work, this object can hardly ever be exactly attained. Hoops are usually rolled forty feet in length; and drawn out by hand, as under the present system, not one ina thousand probably will be found on'examination to be perfectly straight. If the man fails to. seize with his tongs the end ofthe hoop exactly as it emerges from between the rolls, he cannot afterwards get hold ofit, for it curls up very much-like a shaving from a carpenters plane, and is consequently lost,

because it would cost more than its value to straighten it. Experience has demonstrated that the loss from this cause in mills, in which very experienced and expert men are employed, is about one hoop in every seventeen that passthrough the rolls. In mills in which the operatives are selected with no great care, or are inexperienced, the loss is, of cou,rse, far greater.

My invention, operating automatically, entirely dispenses with the use of men in drawing the hoops from the rolls. It seizes with unerring certainty and regularity each hoop the instant it emerges from the rolls, and running away with it in a perfectly straight line, pulls upon it withjust suflicient force to keep it straightuntil it passes through the rolls, then drops it upon the floor, and running back is again ready to seize another hoop. My machine therefore saves the wages paid to the laborers whom under the present system it is necessary to employ, prevents the loss of any of the hoops from a failure to catch them as they come through the rolls, and

secures a straight and therefore more valuable product. Nor is its application confined to any particular size or form of rolled iron, always provided the same be not large. It is equally adapted to the pulling of the hoops intended for a lady's hoop-skirt,-and for the hoops used in banding cotton-bales, &c., or for small bar iron,- 'whether round, square, or any other form. But my invention will be better understood by referring to the drawings.

A A represent the finishing-rolls of an ordinary rolling-mill; B B represent rebated or grooved guide-ways, which may be of any length that may be desired, about forty feet being sufliciently long for most purposes. 0 is that part of the machine which I designate by the name of hoop-puller or tongs-carrier, the tongs that are carried by it being the appliance that seizes upon the end of the hoop as'it emerges between the rolls A A, and pullsupon the hoop with a sufiicient degree of tension to keep it always straight. .The endless chain D is impelled by a toothed wheel, E, which is driven by spur gearing connected with the bottom roller A. The spur-wheel S, (see fig. 5,) if keyed permanently on the shaft of the roller, would drive the chain and tongs at a considerably greater speed than that with which the hoop passes through the rolls; but this wheel S works upon a friction-conq and being pressed against the cone by a nut, is subjected to a degree of friction proportionate to the required amount of pressure; in other words, the friction is made just equal to the tension desired to be applied to the hoop. When the tongs seize the end of the hoop they become, so to speak, fastened to it,'and hence the carrier cannot travel fast'cr than the hoop, however great the tension upon the latter, and hence the wheel S must constantly-slip upon its axis as long as the tongs have hold upon the hoop; and hence, again, when the hoop is released from the carrier in bringing the tongs back for the next hoop, there being then nothing to resist or impede its motion, returns atthe full speed imparted to the chain D by. the wheel S when not slipping upon its axis cone 3 The cone may be placed on any of the intermediate gears, and the operation and effect will be precisely the same. '13 F are guide-ways or chutes through which the hooppasses between the rolls. The hoop is introduced at a, fig. 2, passes through chute F between the rolls and then through chute F. G is a pendent trigger pivoted at 7), and hangsin a slot 0 made longitudinally and perpendicularly through chute F. This tr ger has a pin, 7*, (see fig. 1,) projecting laterally from its rear side underneath the catch-bar H, the position of which is horizontal and in a line parallel with the line of the guide-ways B B. The bar 11 is pivoted at c to an upwardly-projecting fixed arm or standard of the tongs-carrier C. J is the movable jaw of the tongs proper, and its function is to close upon and thus seize or grab the endof the hoop as it comes from the rolls. This movable jaw vibrates within fixed limits, in order to'fulfill its office, upon a pivot at d, and it is provided with apin, Z, (see fig. 1,) projecting from the upper part of it to catch in the notch s in the catch-bar H. K is a. bent spring securely attached to tongs-carrier O, and so placed as to press continually against the movable jaw J considerably above the point at which the latter is pivoted, and closes the tongs upon the end of the hoop as soon as the saine is in position to be seized. The lower end or butt of this spring constitutes the fixed or immovable jaw of the tongs. Fig. 4 is a cross-section of the guide-ways B B and tongs-carrier C, showing the rebates or grooves through which chain D passes, and the position of the shifting-clutch L when thc saine is in connection with the upper part of the said chain. ff are pins projecting from the front face of the shiftingclutch L, and between which the pivoted spring-lever M is-placed, and t is a. pin on the reverse side of the clutch which serves the purposeof holding the latter, in connectionwith the upper portion of the chain D, long enough after the tongs have been opened to insure the dropping ofthe hoop upon th'e'iloor. N is a pawl pivoted to the tongs-carrier, and having sufiicient length to catch into ratchet-teeth I. The pivoted spring-lever M is operated by movable jaw J, by means of a projecting part of the jaw at d, fig.- 2, that fits into a notch in the short end of the same. The pawl N is also operated by the jaw J, there being a. projection from the latter, that is not seen on-the drawing in consequence of its being on the inside of the jaw at r, which is placed or extends underneath the pawl in such a manner that when the jaw closes the pawl is thrownout of the ratchet It at the same instant that the pin Zis released from the notch s in the catch-bar H. P is an adjustable or movable block, whose function it is to reverse the movement of the tongs-carrier. This block is adjusted upon the guideway B, and it can be fixed at any distance from the rolls, and thus-the tongs-carrier need never move furtheraway from the rolls than is required by the length of the hoop, bethe same greater or less. In this block is a pin, 2', which in the operation of the machine comes into contact with the inclined upper part of movable jaw J, and pressing upon the same opens the tongs at the same instant that the pin t enters betweenthe ridges or ilanchcs m and j, and thus maintains the connection between the clutch L and the upper portion of chain D until the carrier has gone far enough to insure the falling of the hoop upon the floor. This object is fully attained by the time the pin t reaches the end a of the fianch j, and at this point the clutch L by its own weight, being no longer obstructed by the fianch, drops out of connection with the upper and into connection with the lower portion of chain D. The flanch m, being curved downwardly for such purpose, assists in the operation of throwing the shifting-clutch L from the upper to the lower portion of the chain D, and when this is done the direction of the tongs-carrier is instantly reversed, and it is taken back to the rolls to seize the next hoop. Fig. 3 shows a cross-section of the guide-ways B B. In the return of the tongs-carrier to the rolls the shifting-clutch L, at its lower end, comes upon and is gradually raised by the inclined plane 0, until just as the carrier brings the tongs into position to take hold of another hoop, when it is lifted out of the lower portion of the chain, or, technically speaking, is thrown. out of gear, and thus the chain continues in motion, whilst the tongs-carrier remains quiescent until the end of the next hoop enters,the tongs, and the carrier isagain, thereby, set in motion. The position held by all the parts of the tongs-carrier, when the end of a hoop has just been seized and'the carrier is just starting ofi from the rolls, is shown at fig. 2.

The operation of my invention is as follows: The chain D runs constantly with the rollers, and its motion is-about twice as fast as that of the hoops'as they pass through the rolls. When the end of a hoop comes through the chute F it pushes forward the pendent trigger G until .the end thereof comes on top of the hoop. This brings the pin '1' in contact with the catch-bar H, and raising the end next the rolls and depressing the other end releases the pin Z from the notch s. The instant this is done the bent spring'K forces the upper part of the movable jaw J forward, and in doing this closes the tongs upon the hoop. The jaw J, whilst thus changing its position, lifts the pawl N out of the ratchet h, and at the same time, through the agency of spring-lever M, raises the shifting-clutch L into connection with the upper portion of thcchain D. All this being done-and it will be observed that everything is done at very nearly the same instant of time-the carrier is instantly carried away with the hoop. If the tongs did not have hold of the hoop the carrier would slide oif twice as fast as the hoop passes through the rolls; but owing to the fact that the driving spur-wheel works upon a friction cone, its motion will be precisely the same with that of the hoop at which it is pulling. When the upper inclined part of the jaw J impinges against pin iprojccting from the block I, the tongs open as we have seen, and there is no longer any grip upon the hoop. If there were nothing to prevent it the opening of the tongswould instantly throw the shifting-clutch out of connection with the upper and into connection with the lower portion of the chain D, and thus reverse the motionof the carrier before the end of the hoop was out of the tongs. This would probably double up the hoop, if no worse consequence resulted, and hence the importance of the flanches m and j upon the block P, which avoid the difficulty in question in this way. At the same instant that the pin 2' comes into contact with the movable jaw, pin t enters between these ilanchcs, and resting upon J prevents the clutch from leaving the chain until the carrier C has moved a sufiicient space after the tongs have been opened to insure the falling of the hoop out'of them with absolute certainty. The space of a foot or eighteen inches will be ample for this purpose. From a point just over the farther end 71 of tho'ilanch lunch m curves abruptly downwardly, and thus when the pin t passes the end it of flanchj, it strikes against this flanch, and the effect is to arrest the further oil motion of the carrier, and at the same time to assist in throwing the clutch into connection with the lower portion'of the chain. When this is done the carrier is instantly taken back with accelerated speed to the rolls.

Having thus described my invention and its mode of operation, what I claim, and desire to secure by Letters Patent, is-

1. The automatic pulling of hoops from the finishing-rolls of rolling-mills by means of a. reciprocating carrier arranged and operated substantially as herein described for the purpose set forth.

2. The tongs-carrier C with its appliances herein enumerated, substantially as described for the purpose set forth.

3. The combination of the tongscarrier O and its appliances with the guide-ways B B, as described for the purpose set forth.

. 4. The combination of the tongs-carrier C and its appliances, the guide-Ways B B, chain D, and toothwheel E, with the adjustable block P, substantially as described for the purpose set forth.

5. The combination of the tongs-carrier C and its appliances, the guide-Ways B B, the endless chain D, tooth-wheel E, and block P, with the friction cone 31, substantially as described fort-he purpose set forth.

0. W. WAILEY.

Witnesses:

EMILE Rosa, G130. HOWARD KING.