US106939A - Improvement in machines for cutting out the ends of eyelets - Google Patents

Description

NPETERS. PHOTQ-UTNOGRAPHER, WASHINGTON, D. C.

UNITED STATES PATENT OEEIGE.

ESEK TALLMAN AND NICHOLAS G. HOXSIE, OF PROVIDENCE, RHODE ISLAND,

ADMINISTRATORS OF DAVID K. HOXSIE, DECEASED, ASSIGNORS TO WA- TERBURY BRASS COMPANY AND AMERICAN FLASK AND CAP COMPANY,

OF \VATERBURY, CONNECTICUT.

IMPROVEMENT IN MACHINES FOR CUTTING OUT THE ENDS 0F EYELETS.

Specification forming part of Letters Patent No. 106,939, dated August 30, 1870.

DAVID K. HoXsIE, deceased, late ofthe city and county of Providence, in the State ot' Rhode Island, during his life-time invented certain Improvements in l\[achinery for the Manufacture of Metallic Eyelets, of which the followin g is the specification, reference being hadto the accompanying drawin g, makin gpart of the same.

The said invention relates to improvements I in the manufacture of eyelets, by which the metal is first converted into a bell-shaped piece or cap, by suitable means, in one machine or class of machinery, and afterward, by other means or by another and distinct class of machinery, which removes the material from the closed or small end of the bell-cap, it is converted into an eyelet ofthe proper form.

The invention, in this instance, relates particularly to the means by which the closed or small end ofthe bell-cap is removed.

The first part of this invention relates to the means employed to remove the metal at the closed end of the bell-cap, to open it and convert the cap into an eyelet, and also to flatten the ilange or flaring open end of the same. The opening part of this operation has heretofore been performed by cutting or punching out a chip at the closed end by means of the end ofthe formingpunch at the bottom of the die from which it receives its eyelet form, or by like means in a separate machine. By the means employed in this invention, however, the bell-caps or pieces are delivered in a mass, and fed, by suitable means, to a device which holds the same by the Haring open end, while the small closed end is removed by grinding ott the metal; and this part of the invention consists of a perforated endless apron or belt of metal on a pair of straining-wheels, to regulate the tension in the perforations of which the bell-caps are inserted, point foremost, and held firmly by their ilan ge between the wheels face and the edge of the perforation in the apron, and socarried by the movement of the apron, and presented to the dece which removes -the material to open the closed end and complete the eyelet, and afterward delivers the eyelet from the apron into a snit-able receptacle.

This part ofthe invention includes a device for feeding thebell-capsto theperforated apron, consisting of one or more moving` brushes, which sweep the caps that are deposited in a mass on the apron in an opposite direction to its carrying movement, and by so doing stir the mass sufficiently to present some of' the caps in proper position to insert themselves in the perforations, and be delivered from the mass and carried by the apron to the device which removes the material from their end.

This part of the invention also comprises the device for grinding off the small end of the caps as they are presented by the moving perforated apron; and consists of one or more grinding-wheels, of suitable gradations of cut, which revolve with a laterally-vibrating movement close to that portion of the aprons surface which is around the straining-wheel, where the caps are more firmly held, and are adjusted with respect to said surface to a degree that will permitthe grindingoff of enough material from the protruding; ends of the caps to open the same, and also determine the length of the eyelet.

In the accompanyingr drawing, Figure 6 is a side elevation and section of the machine which grinds off the small end of the bell-cap. Fig. 7 is a plan of the machine, some unimportant parts of which are omitted to give an unobstructed view of those of more consequence. S represents a section ot' the straining-wheel and apron, showing the manner of flattening the flange of the eyelet. Fig. 9, No. l represents the bell-cap before the small end is removed, and No. 2 the cap with its end ground off and iauge flattened to complete the eyelet.

Similar letters denote like parts in the several iigures.

F is the frame of the machine, upon which are mounted on the shafts a a', turning iusuitable bea-rin gs, the straining-wheels Il B2, over which is placed the endless metallic apron A, which is strained to a suitable degree of tension by means of the screws ff, Fig. 7, which draw the bearings of the wheel B apart from those of B2 until the requisite tension is obtained. These wheels are also provided with a slight iiange on each side of their face, to keep the apron in line and upon the wheel under the circumstance o' its use.

The apron A is best made of sheet-steel, as most capable of resisting the strain and wear to which it is subjected, and it is regularly perforated over its entire surface with holes of suitable size to receive the bell-caps point foremost, and hold them by their flange, as shown in Figs. 6 and 8, between the edge ot' the perforation in the apron and the face of the wheel B2, to which a slow rotative movementis imparted, in the direction indicated by the arrows, by the inner wheel It and arm XV, which are operated through the bevel-gears S by the driving-pulleys l?, Fig. 7

The bell-caps are deposited in a mass at E on the lower straight surface ofthe apron, between the two wheels, and nearest to wheel B. Between this point and the wheel B2 are arranged a number of revolving brushcylinders, Dl D2 D3, on suitable spindles, that are driven by bands connecting with the wheel C on the same shaft with the strainingwheel B, and like bands connecting the movements of each with the other. These brushes revolve in one direction, as indicated by the arrows, and in opposite direction to the apron A, against which they sweep, and with amore rapid movement.

By this arrangement the mass ot bell-caps on the apron are swept back from moving with it, and are stirred and tumbled thereon,

so that some out of the mass are presented to the passing pertorations point foremost, and are held in the apron supported by their iianges, and carried past the brushes to the position on the wheel B2. (Shown in Fig. '6.) A mass of caps may be placed behind each brush, and thereby more be inserted in the apron should the operation of one brush be found inadequate to ll all the perforations.

In ease any of the caps should catch upon the brush, they may be removed by a comb or clearer, b, consisting of a set of pins or teeth on a cross-bar extending lengthwise of their cylinder, and with their ends penetrating a short distance into the brush, the said teeth being so closely set as to prevent the caps from passing between them. They will by this means be readily stripped from the brush and drop back into the mass.

As the flange ofthe caps in the perforations come in contact with the face of the wheel B2, owing to the tension of the apron they become sli glitl yiiattened by being pinched firmly between the edge of the perforation and the t'ace of the wheel, as shown in Fig. S, in which condition they are presented to the grindingwheels M N, the former being mounted in adjustable bearings on the frame of the machine in line with the wheel B2, and the latter in like bearings above it. These: wheels may be of metal, with their faces coated with emery, that on the face of the wheel M being of eoarser grade than that on wheel N, the former serving to remove the material on the end of the bell-cap, while the latter serves only to butt' oft' the end of the eyeletlsmoothly.

The wheel M is adjusted to the requisite position with respect to the protruding cap ends on the wheel B2 by means of the screws V V at this end of the frame, and the wheel N is adjusted to its position by means of the nut g on the stands Zbeneath the bearings t on the top of the stand, in which the spindle of this wheel revolves.

The motion of the two grinding-wheels is communicated by means of a band over the pulleys T T, and both are driven by the pulley L. These grinding-wheels have end-play in their bearings, and have a quick vibratory movement laterally therein, produced by the two clutch -levers O O, the forked end ot` which straddles a groove in the spindle ot' each wheel, while the other end of each is operated by a groove-cam on the shaft of the driving-pulley l).

The several parts being thus arranged, the operation is, that the bell-caps are deposited on the apron at E, and, by means of the brushes D, they are inserted in the perforations, as shown at t t, Fig. 6, a-nd are carried along to the wheel B2, where they are griped by their flange between the face of the wheel and the apron, and the lange ilattened.

As the caps ascend with the face otl the. wheel B2, their protruding ends come in contact with the grinding-wheel M, in passing which the closed end is ground oit' and opened. Thence passing on, the open ends are brought into contact with the grinding-wheel N, when the rough ground end is smoothed off, after which, on passing over the top ot' the wheel B2, the now completed eyelets drop by their own gravity from the perforations into the receptacle X, whence they are taken in quantities and subjected to the subsequent operation ofannealing and coloring, preparatory to bein g packed for sale.

lhat is claimed as the invention ot' thesaid DAVID K. Hoxsrn is- 1. The combination of the endless perforated belt or apron A, the brush or brushes D, and the grinding wheel or wheels M N, substantially as and for the purpose specified.

2. The mode herein described of making eyelets, by first converting the metal into detached bell-shaped pieces or caps, and afterward opening the end an d liattening the tlan ge of the caps to convert them into eyelets, in the manner and by means substantially as speciied.

In testimony whereof we, said administrators, have hereunto subscribed our names this 8th day of April, A. D. 1870.

ESEK TALLMAN, NICHOLAS G. HOXSIE,

Adm/[11fstrni'ors. Vitilesses jI'sAAc A. BnowNnLr., E. l?. lnnmrrs.

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