US80083A - millard - Google Patents

Description

N-PETERS. PHOTO-LITHOGRAPMER, WASHWGTON. D C.

S. A. MILLARD, OF'CLAYVILLE, NEW YORK.

Letters Patent No. 80,0813, dater1 July v21, 1868.

IMPROVED MAHINE POR ROLLING HOE-BLANES.

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TO ALL WI-IOM IT MAY CONGE-RN:

Be it known that I, S. A. MILLARD, of Clayville, in Oneida county, in the State of New York, have invented certain new and useful Improvements in Machinery for Rolling Hoes); and I do hereby declare that .the.following is a fullandiexact description thereof, reference being had to the accompanying drawings, making' part of this application. v

My invention relates to certain improvements lin 'machinery for rolling what are knownasgoose-neck hoes, (which are made of one single piece of'metal) i Previous to my invention it was customary, for a long time, to make this kind of hee by drawing out the stock into shape entirely by means of `the trip-hammer, but-lately it has been suggested to perform the operations of drawing out the metal from the blank and plaiting.it by means of oscillating-rolls, and I believe Letters Patent have been granted for such a contrivance. l

. It has been found in practice, however, that such machinery involves in its operation serious practical diiculties and objections, among which may he mentioned Vthe imperfect working-of the dies together, (and consequent imperfection in the work,) on account of the slip or backlash in the gearing during the oscillating motion `it is subjected to, the necessary complication of the machinery, diiiiculty in the management of the same, and the necessity for constantly shifting (or raising and lowering) the` rolls `during the operation of themill. l My invention has for its objects to provide a machine adapted to perfectly and rapidly perform al1 the operations of drawing out or spreading and plaitingup the hoe, which shall involve a simple rotatory motion oftwo rolls, and be exceedingly simple in its construction, and which shall require little or no manipulation by the operative.

And to these ends my'invention consists in a machine for rolling lioe's, composed of rotatory rolls, suitably mounted and driven, and provided with sets `of dies, arranged to operate together, and provided with guides,.all as hereinafter more fully explained. l

To enable those skilled in the art to make and use my invention, I will proceed to describe the-construction and operation of one'ot` my improved machines for rolling hoes, referring byletters to the accompanying draw,` ings, in whichl Figure lis a side elevation,

Figure 2, an end'view', and y Figures 3, 4, and 5, detail sectional, views at the lines respectively :c :cpy y, and z z, of iig. 1. .p

At Figures 6, 7, 8, 9, 10, and ll, I have shown diagrams, illustrative of the hoe-blank and the successive operations performed on it to shape it into a hoe. l i

In the several figures the same parts are denotedhy the same letters of reference.

A A2 are the frames., in which are arranged (in suitable bearings, D F,) the rolls B C. These frames are supported on suitables bases, E E, and, :together with the latter and the rolls and driving-gear M N, are arranged and operate in the well-known manner of an ordinary set of rotating rolls 't The lower roll, C, is shpported in'stationary boxes D, and the upper roll, B, is hung in adjustable boxesF t, which are suspended, by means-of the vertical rods I, screw-shafts G, and strapj, from the top of the frames A, as clearly shown in the drawings. i

One'end of eachof the rolls overhangs, (as clearly seen at iig. 1,) and these overhanging portions are provided with two sets of dies,ff and o'o, and on the main portions of` the rolls (that is, the 'parts between .the

` 1 frames A A2,) are arranged and ,secured in the usual'- manner two other sets. of dies,m m2 and t t; the lower die, 'm2, of one set, and the `lower die, t, ofthe other set, being each provided with a guide, arranged `on the lower roll C, and operating as'and for purposes to be presently explained.

w is a guide-rest or stop, consisting of a bar, attached to the frame A, extending out in front of the overhanging ends of the rolls, and so formed that the operative can rest the shank ofthe hoe-blank on it, as will be presently explained.l

-The blank of which thehoe is formed is of the usual shape, as illustrated at Eg. 6, the portion a boing the stock for the blade, and bthe stock for the shank. The stock b isdrawn out underf'a trip-hanimer into the shape seen at b", iig. 7, (in the well-known manner,) andfisperforated with an eye at c. lThe blanks, as seen ati'ig.'7', are then subjected to the operations under my improved mill as follows, vizi The portion a, being properly heated, is placed. between the dies o cof the overhanging ends of' the rotatory rolls, in such manner as to be alternately rolled out from its centre toward each edge, (xas'fillustratcdby the orrows,) and madeto assume the shape seen at e', iig. 3. By this operation the blank is spreadfvso as tobe much thinner, and of suilicicnt width for the hoyo. v

The dies O it will be seen, are cach formed with a small score or out at one edge, in suclrmanner that, when they como together on the centre of thc portion trof the blank, they will leave a ridge of stock in rolling or spreading out thcblank into the shape seen at a', lig. 8, and this ridge or projection constitutes, when finished -into shape, the bead portion c5 of the hoe, (seen at iig. 1l.)

The operation of spreading the blank with the dies O O is illustrated at iig. 2, where the red lines represent the blank as having had one half of the portion a spread or rolled out,and been reversed in position, and placed ready to have the other half rolled out, (the stock passing through the rolls i'nthe direction indicated by the arrow.) i l The blank (in the condition shown et lig. is now passed between 4the diesff, as shown in red lines at fig. 3, whereby the shank a?, iig. 1l, is'perfectly shaped. It is then grasped in the tongs, at'the point indicated by blueA lines, hg. 9, and being shoved through between the rollsBC, and rheld in the proper position, is caught between the dies t t and rolled back toward the operative, spreading the stock in the direction indicated by arrows, iig. 9, so as to spread up the ears ce. L ho blank is then taken out, and being this time heldby the shank Z, is put through between the dies m m2, and is plaited out, (in the direction of arrows at hg. 10,) into the shape seen atviig. l0, and ready to be-cut or stamped out into the complete form seen at fig. 1l, after which itn l is tempered, polished, te., and the shank 6 bent into its proper shape, to be attached to a wooden handle in the usual manner. l Y y 'It will be understood that the dios t t are formed with a deep and suHiciontly wide cut or line of separation in the centre of each as shown, so as to constitute really two-distinct sets, in order that the stock of the blank l may be rolled out in the direction of the arrows, fig. 9, to form the ears, without touching at all the shank v'portion of the blank, and the lower die t is provided with a fennel-shaped guide, S, arranged on the roll, into which the operator puts the tongs, and which serre as er guide and to adjust the blank laterally, so as to insure `the passage of the shank through the open space left by the cuts or scores through tlie centres oi` dies t t.

y",:On the roll G is arranged, in connection with die m2, lanother somewhat similar guide, 11,-which serves to effect thc ready and perfect adjustment'of the blank, so that, in passingit between-thc dies m m2, to plait it out, (into shape seen at iig. 10,) its shank or bead a5shall come exactly in the score oi' the lowerA die mie Theoperation of the dies t t is more clearly illustrated at iig. 4, where they are represented in the act of spreading np the ears .of a blank, thc latter beingsupposed to be passing through in the direction indicated by theerrows. C l v A t fg. 5 is shown the operation upon. the blank'of the dies m m2 by which the blank is pluited out yinto shape seen at iig. 10. In this figure the blank is shown as inserted, and the lies being just about going to take hold'to roll the stock through in the' direotion indicated bythe arrow, (thebead a5 having been perfectly adjusted in thescore of thelower die m2.) I

i 'It will be seen that, with a set of rolls and a series of dies and guides, the whole arranged and operating on the blanks as explained, no complication of mechanism is involved, that is, a simple continuous rotatbry motion given to the rolls in the usual manner, and that the different operations can be economically and successfully vperformed on the blank with but little manual labor, and that all the'objcctions consequent to other machines known, and hereinbefore referred to, are avoided.

Having explained the construction, and operation of my improved machinery for rolling hoe-blanks, so that one skilled in the art canvmake and use the sume, what I claim therein as new, and desire tcvsecure by Letters Patent, is l l 1. The construction of the projecting dies o o, together with their arrangementen the projecting portions of the revolving rolls B G, as described, saiddios being for the-purpose of spreading the blank laterally in the manner described.-

2. The construction of the projecting diesff, together with theirarrnngement on the projecting portions of the revolvihg'rolls B C, as described, said dies being for the purposeof spreading the blank laterally and giving form to the rib on the surface of the hoc, inthe manner described.

3. The construction of the projecting dies t t, together with their arrangement on the revolving rolls B C, as described, said dies being for the purpose of spreading the metal to form the ears ofthe hoe, in thcdirection and in the manner described. l

4. In combination with the rotatoryrollsB C, a set of pluiting-dies mm2, constructed as specified, the whole arranged to operate as described, for the purpose set forth. f

5. The employment, in combination with a set of rotatory dies, of adjusting-guides, arranged on the face of the roll, and operating to effect the adjustmentand retention of the blank, substantially as hereinbefore described.

In testimony whereof, I have hereunto set my hand and seal, this eighteenth day of July, 1867.

S. A.. MILLARD.' [L 6.]

Witnesses:

B. F. LEWIS, s B. F. ROBERTS.

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