US90690A - Improvement in the manufacture of bungs - Google Patents

Description

BENJAMIN D. SANDERS, OF WELLSBURG, WEST VIRGINIA.

Letters Patent No. 90,690, dated J lure 1, 1869.

IMPROVEMENT IN THE MANUFACTURE OF BUNGS.

The Schedule referred me in these Letters Patent and making part of the name.

To all who-writ may concern:

Be it ,known that I, BENJAMIN-D. Sannnns, of Wellsburg, in the county of Brooke, and State of .Vest Virginia, have invented a new and useful 1mprovement in the Manufacture of Bun'gs, Plugs, and Taps; and I do hereby declare the following to be a full, clear, and exactdescription thereof, reference being'bad to the accompanying drawing, making a part of this specification, in which- Figure 1 is a plan view of my machine;

Figure 2 is a perspective view of the same;

Figure 3 shows a section through x-z, fig. 1;

Figure 4 shows, in perspective, my invention in a somewhat modified form;

Figure 5 is a cross-section through ai -x, fig. 4; and

Figure 6 is a perspective view of my finished taperbung. v

Bungs'for barrels have heretofore been generally made'by turning them out to the shape desired, or by cutting the blanks with a cylindrical chisel. and reducing such blanks to the desired taper-form by pressing them in a hollow cup-shaped die.

As distinguished from such modes of giving to a bung the desired taper-form, my improvement consists in rolling the bung-blank on its axisbetween bevelbott-om grooves, which grooves may be either straight or curvedlongitudinally, and in which the bottoms of the grooves are converging both longitudinally and transversely the degree of transverse convergence increasing from one end to the other.

My invention furthermore consists in the construction and use of a machine for rolling taper-bungs, taps, and jar-covers, 8m, in which the bung, tap, 850., is reduced from a cylindrical 'or other form in which it-is cut, to a taper-form, by passing it along longitudinally and transversely-converging grooves, and also in a rolled taper-bung, as a new article of manufacture.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and mode of operation.

Ais a segmental wheel or roller-plate, having a concave face, and adjusted in the frame B. Extending longitudinally along its inner face is a groove, a, the bottom of the groove being bevelled or inclined, that is to say, deeper at one side than at the other.

. A roller-wheel, A, is hung to the frame B, inside the concave of the roller-plate A, and eccentric with it, so that the aperture z,"hetween the two, at onev side, shall be larger than the aperture 2, at the other side.

The periphery of the wheel A has a groove, (1, extending around it, the bottom of the groove being bevelled or inclined in like manner as'bcfore, but-in the opposite direction.

Angle-shaped cleats b b are attached to the opposite ends of the roller-plate A, and by these is rendered adjustable on the frame B, so as to increase or lessen the eccentricity of it with reference to the wheelA'.

By loosening the set-screws in the slot 0, the rollerplate A is moved laterally either way, and by a setscrew, e, the plate A is raised or lowered.

\ Motion is communicated to the wheel A by a bandwheel, 0.

The axle 0' runs in any suitable bearings on the frame B.

The operation of the machine is as follows:

The bung-blanks being cut of cylindrical shape, they are fed, one after another, in as close succession as may be desired, at the aperture 2:.

The plate A and wheel A must be so adjusted at this point that the distance between the bottoms of the grooves aa' shall be at least equal to the diameter of the bung-blanks fed in.

From this point around to the other aperture, 2,

the bottoms of the grooves aa. converge gradually, so that at the aperture z, which is the place for the exit of the finished bungs D, the distance between the bottoms of the rooves a a, at any point, shall be equal to the diameter of the corresponding part of the bung D.

The bungs D are then turned out at the aperture z, rolled to the taper-form desired.

The smaller end is gradually compressed between the inclined bottoms of the converging grooves a a, and the cylindrical blank fed'in at z is gradually compressed and rolled into the taper-bung D. The sides of the grooves a a keep the bung-blanks in place while they are being rolled.

The dotted lines in fig. l are designed to show the depth of the opposite sides of the grooves.

The inclination of the grooves is shownin figs. 2 and 3.

My invention is further shown, in. a somewhat modificd form, in figs. 4 and 5.

A box-shaped frame, E, then takes the place of the frame B, before described.

The upper part of the box has a groove, 8, with inclined bottom, similar to the groove a,-alre ady de-. scribed, except, that longitudinally it is straight instead of curved.

Directly under this groove s is a. slide, F, which works back and forth, and in the upper face of which is a groove, s, also having an inclined bottom, similar to the groove 11, except that it also is straight.

The grooves s s are made, with reference to each other, in the manner already described, as well in other respects as in the fact that they approach each other from the front aperture, when the bung-blanks are fed in, toward the rear aperture, which is their place of exit, in a finished state.

A reciprocating motion is imparted to the slide F by any suitable or well-known devices. I

As it commences its forward stroke, cylindrical bungblanks are fed in, which, rolling along through, are rolled down to the taper-form shown in fig. 6,bet-ween the inclined bottoms of the converging grooves s s.

After the bnngs pass out at the rear aperture, the slide F makes its return or backward stroke, and the operation is repeated.

The distinctive feature of this invention consists in the fact that the bungs are reduced to the desired taper-form by rolling, instead of by pressing; and since the compressing is done gradually, and on the different sides of the bung-blank, in continuous and rapid succession, and since the compressing-force acts nearly or exactly at right angles to the axis of the bung-blank, instead of in the line of its axis, as heretofore, the grain of the wood is subject to less fracture or disturbance, the compression is more uniform on all sides, and a bung is produced of superior quality and better finish. The machinery is cheaply constructed and easily operated. As described, the grooves may be curved or straight. The motion may be rotary or reciprocating, and, if so preferred, the bottoms of the stationary grooves may be flat at the,feed-apertures, in which case the bevel or incline may commence at, and increase from that point to the point of exit, where the inclination should be that of the sides desired in the bung.

I apply my invention to rolling not only bungs, but also corks, taps, jar-covers, and other like articles.

I am aware that corrugated converging surfaces,

without grooves, are used in metal squeezers; also,

that metallic disks have been rotated on their axes, between grooved surfaces, for the purpose of milling their edges, and such devices, by themselves, I do not claim, especially since neither of them would operate to reduce a non-metallic cylindrical blank to a taperform.

What I claim as my invention, and desire to secure by Letters Patent, is-- l. The mode of making buugs, plugs, taps, and jarcovers, by the means substantially as herein shown and described.

2. Two longitudinally-converging grooved surfaces, made with the bottoms of the grooves bevelled or inclined in opposite directions, so as to operate in re- (lacing, by compression, a cylindrical blank to a taperform, substantially in the manner described.

3. A grooved segmental roller-plate, A, adjustable in a frame, B, substantially as described, so as to increase or lessen the eccentricity of the grooved Wheel A, with reference thereto, for the purposes set forth.

4. A rolled taper-bung, made substantially as described, as a new article of manufacture.

In testimony whereof I, the said BENJAMIN D SANDERs, have hereunto set my band.

B. D. SANDERS. Witnesses: Y

ELL TORRANGE, G. HJGHRIsTY.

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