US607041A - Feed for heel-cutting machines - Google Patents

Description

No. 6o7,d4|. Patented my f2, |398. A. A. HuusoN.

FEED FUR HEEL CUTTING MACHINES.

(Application led Aug. 4, 1897.)

' (No Model.)

3 Shets--Sheet I.

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No. 607,04I. lPatented luly I2, |898.

A. A. HUDSON.

FEED FOB HEEL CUTTING MACHINES.

, (Application filed Aug. 4, 1897.) (No Model.) 3 Sheets--Sheet-Z.

No. 607,04I. Patented IuIy I2, |898.

A. A. HUDSON.

FEED FOR HEEL CUTTING MACHINES.

3 Sheets-Sheet 3.

(Application led Aug. 4, 1897.) (No Model.) l

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@Narren STATES ALEXANDER A. HUDSON, OF HAVERHILL, MASSACHUSETTS.

FEED FOR HEEL-CUTTING MACHINES.

SPECIFVLCATION forming part Of Letters Patent No. 607,041, dated July 12, 1898.

Application tiled August; Il, 1897, Serial No. 647,032. (No model.)

T0 @ZZ whom/ it may con/cern.:

Be it known that I, ALEXANDER A. HUDSON,

of Haverhill, in the'county o f Essex and State of Massachusetts, have invented certain new and useful Improvements in Spring -Heel Scarfers, of which the following is a specification.

This invention relates to machines for cutting spring-heels from blanks wherebythe blanks are passed one at a time between rollers and are advanced thereby against a knife which cuts each blank in halves to form two spring-heels. Y

The invention has for its object to dispense with the present method of feeding the heelblanks to the rollers by hand,involving as it does the necessity of constant and skilful attendance as Well as a lack of rapidity in turnng out work; and to this end the invention consists in an improved automatic feeding attachment for heel-cutting machines wherein is employed a hopper or magazine in which a large number of heel-blanks may be placed and from the end of which,theblanks are delivered one at atime to a reciprocating feed device which advancesthem 'toV the" rollers and the cutting-knife.

Reference is to be had tothe accompanying drawings and to the letters marked thereon, the same letters indicating the same parts or features, as the case may be, wherever they Of the drawings, Figure 1 represents a side elevation of my improved feeding attachment as applied to aheel-cutting machine. Fig. 2 represents a top plan view of the same with the magazine in section. Fig. 3 represents a rear View of the same. Fig. et represents the magazine andadjacent parts in vertical section and side elevation. Fig. 5, represents a reverse plan View of the table and mechanism for operating the reciprocatory slide. y Fig. 6

represents a top plan View of said mechanism' with parts in section.

Fig. 7 represents a section on the line 77 of Fig. 1. Fig. 8 represents a partial section similar to Fig. 4 with 'two rollers b b', mounted on suitable shafts and driven by gearing b2 173124 h5. These rollers receive the heel-blanks from the feeding mechanism, hereinafter to be described, and force them one at a time against the knife c. The upper roller h is mounted so asv to be `capable of a slight movementtoward and c in such a position as to give the'heel-blankV d an inclined cut, and thereby form bevel edges on the spring-heels, Fig. 9,.'

e designates a magazine or hopperin which the heel-blanks are placed in `a vertical column, one aboveanother, and fr om the lower end of which they are successively fed between the rollers h b. Between said lower end of the hopper andthe table a a reciprocatory slide f operates under the in uence of a cam g on the shaft b6 of the roller b. The said slide is confined to a rectilinear path by means of a tongue f', fastened. to its lower side and working in a guide-slot d in the table a, the said tongue having a pin f2,which is engaged bythe slotted end `of a lever h, pivoted at 7L to the under side of the table. Said lever is osoillated on its pivot by means of a sliding rod c', mounted in guide-blocks c" on the under side'of the table and having a pivotal connection with the lever by means of an arm i2, the rod being reciprocated by the cam g through the medium of an offset arm i3, secured to the rod andagainst which the cam'operates. A spring'jrexerts a pull- -ing tension on the rod t', which tends to draw the slide f inth'e direction ofthe rollers and the cutter. Y A A j Both the front andbacksides of the maga-V zine e are fitted on the inside Withsliding panels Zo k', whiclrmay be adj usted vertically to regulate the distance of Y'their lower edges from the table. This distance will depend upon the thickness of the heel-blanks which are being fed, being, as shown in Fig. 8, greater than `the thickness ofone and less than the thickness of two, so kas to allow the lowermost blank in the pile to be pushed out from underneath the magazine by the slide f. Said slide is shown in its two eXtreme posi- IOO tions in Figs. 4 and 8, respectively. In Fig. 8 the bottom of the column of blanks rests on the surface of the table, and the slide f is withdrawn from beneath the magazine by the action of the cam g. As said cam revolves its long axis becomes vertical, Fig. 4, and the springj draws the slide toward the opening between the rollers l) Zi'. During thisY action the forwardedge of said slide engages the lowermost heel-blank and pushes it forward between the rollers, which further advance it to the cutting-knife. Vhen the lowermost blank has been thus displaced and fed forward, the column in the magazine sinks and the next succeeding blank rests on the upper surface of the slide, and finally upon the table, as in Fig. 8, when said slide has been again retracted by the cam g.

The hopper or magazine c consists of a suit ably-supported back e', two adjustable side pieces e2 e2, and a front piece c3, removably secured to the side pieces. The side pieces e2 are secured to the back by means of strapbolts c4 el, fastened to the said side pieces and occupying slots e5 e5 in the back c', the shan ks of said bolts being provided with thumb-nuts e c6. This construction,it will be observed, enables the side pieces to be adjusted to correspond to the lengths of the different sizes of heel-blanks. The panel 71:' in the back of the magazine is let into a recess therein and is provided with adjusting means consisting' ofY a bolt 7a2 and thumb-nut 7.33. rlhe front piece c3 rests on hooks c7 e7, projecting from the back piece c', and is held in place against the side pieces by buttons es es at its upper end.

Means are provided for adj usting the rear panel 7;, back and forth in the magazine, as well as up and down, by attachments consisting of a sleeve 7a4, screwing in a bushing h5, which is secured to the front piece e3, and a bolt 7.36, affixed to the panel and having a thumb-nut 7.;7 on its outer end which binds against the outer end of the sleeve. By screwing the sleeve 7J* out or in through the bushing h5 the panel may be adjusted to iit different widths of heel-blanks, as indicated by the broken-line position of said panel. (Shown in Fig. 4.)

The aperture in the sleeve ki is made eonsiderably wider than the thickness of the bolt 7u, so that vertical adjustment of the panel may be secured by moving said bolt up or down in the sleeve. 7135758 designate guidepins fastened to the panel t and occupying vertical slots e ci in the back piece e3. Guidestrips d2 d3 are secured to the table d below the magazine to guide the heel-blanks toward the rollers.

By means of my invention I am enabled to effect a great saving of time and labor in the class of work performed by machines of the kind described, the filling of the magazine from time to time being the only attendance required when the machines are running.

Various details of the construction above set forth may of course be changed without departing from the spirit of my invention.

I am aware that it is not new in leatherworking machinery to employ a reciprocatory slide which removes the lowermost piece from a pile of superposed pieces and feeds it to a critter, and I do not claim such a device broadly. The novelty of myinvention as regards the moving parts lies in the yielding feeding action produced by the cooperation, with the reciprocating slide. of the cam g and the spring It will readily be seen that should any undue obstruction be encountered by the slide in its forward stroke, caused by an unusually thick blank or by a blank becoming wedged or stuck, no damage will result either to the blanks themselves or to the apparatus, which would not be the case with a positive forward feed. The force of. the forward stroke of the slide may be varied for different sizes of blanks by using springs of different strength.

I claiml. In a mechanism for feeding heel-blanks to a cutter, a reciprocatoryslide and a magazine located above said slide and adapted to contain a plurality of superposed blanks, the said magazine having panels in its walls with provisions for adjusting said panels toward and away from the reciprocatory slide to cor respond to the thickness of the blanks.

2. In a mechanism for feeding blanks to a cutter, a reciprocatory .slide and a magazine located above said slide, and adapted to contain a plurality of superposed blanks, the said magazine having sides adjustable toward each other to accommodate different lengths of blanks and having a panel in one of its walls adjustable toward the opposite wall to accommodate different widths of blanks.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 30th day of July, A. D. 1897.

ALEXANDER A. HUDSON. 1Witnesses:

A. D. HARRISON, E. Bnrcnuiunnn.

ICO

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