US98002A - Improved machine for making carriage-clips - Google Patents

Description

WILCOX 6L MCCHESNEY. I Making Carriage Clips. No.98,002. Patented Dec."14,1869.

Wimeases': I I [7W a v I y To all whom it may concern;

pa e can.

DARIUS WILCOX'AND Ii. MGGHESNEY, OF DERBY, CONNECTTOUT, ASSIGNORfi T0 D. M BASSETT AND DARIUS WILOOX, OF SAME PLACE.

Letters PatentN 98,002, dated December 14, 1869.

IMPROVED MACHINE MAKING CARRIAGE-CLIPS.

J'I'he Schedule referred to in these Letters Patent and making part of the same.

Be it known that we, DARIUS Wrnoox and R. Mc-. GHESNEY, of Derby, in the county of New Haven, and State of Connecticut, have invented a new Improvement in Machine for Making Carriage-Clips; and we do hereby declare the following", when taken in connection with the accompanyingdrawings, and the let ters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure 1, a side view;

Figure 2, a top view; and in Figures 3 and 4, top views of the blank-holder, to

illustrate the operation.

This invention relates to an improvement in the process of forging carriage-clips; and

The invention consists in a holder construetedso as i to receive a piece of a round rod of metal, of the length required for the clip complete, and securely hold the same, so as to be presented to a segmental roll whioh shall roll fiat'the central portion of the clip, and into the required form.

To enable others to construct and use our improvement, we will fully describe the same, as illustrated in the accompanying drawings.

-A is the frame of the machine.

B, the driving-shaft.

O, the blank-holder, which is constructed as seen in fig. 3, so asto receive the bar, fiwhich/is cut from a bar of the required diameter, and of the length required for the clip, supported at its two ends in a seat formed to receive the same, and the space a between thetwo ends is formed into a die of, the shape required for the central portion of the clip, and this holder G is arranged upon a double toggle, D, operated by, the lever E, as seen in fig. 1, so as to lower the holder 0, as denoted in red, fig. 1, or to force it up, as denoted in fig. 1.

Above the former, and directly over it, we arrange a segmental roll, F, the face of which is of the length, or slightly-longer than the rolled or central portion of the clip, and is formed with a slight recess, (1, so that lying in the position seen in fig. l, and the former with the blank thereon pressed hard against the roll, will form the end of the flat portion, and working from the round portion, as at c, fig. 4, the other end of the segment being of like form.

The said segmental roll is hung to a carriage, G,

which said carriage is moved, in guides H, back and forth, by a crank, L, on the driving-shaft; and in order to impart rotary motion to the segmental roll F, we arrange chains or belts, or similar device, denoted by the red lines, fig. 2, one end of each chain or belt being fixed to the machine, respectively, at i and l, the other end to acorrespomliug end of the roll F, so that as the carriage G traverses back and forth, apositive movement is given to the roll 1 I isa clamp fixed to the frame of the machine,- whieh will clamp one end of the blank firmly when the holder is raised against it.

The blank being placed in the holder, as seen in fig.

, '3, and pressed hard up to its bearing, so as to form the first end of the clip, then the movement is given to the roller, so that it will pass over the holder to the position denoted in blue, fig. 1, rolling down the rod, and flattening the portion overwhich it passes into the die, and so as to work it to the form required.

It is advantageous, in the operation of rolling, that the roll revolve a little faster than thenatur al movement of passing over the surface would make it, so as,

to a certain extent, to draw the metal toward the roll, or, rather, to prevent the flowing of the metal before the roll. To do this, it is only necessary to make the grooves in whichthe chains or belts operate upon the roll, on a-circle of less radius than the roll. Employing, in this manner, simply sulficient metal to form :the clip complete, it comes ,fIOlll the die perfectly formed, and so as not to require clipping or other labor to he performed upon it.

Having, therefore, thus fully described our invention,

The combination of the holder 0, arranged as described, so as to be raised or lowered, and constructed so as to receive and hold the blank, with the segmegtal roll F, the said roll being hung in the carriage (I, so asto pass over the blank .on the table G, all substantiall y as herein set forth.

DARIUS WILOOX. It. MCOHESNEY.

Witnesses JOHN H. SHUMWAY, A. J. TIBBITS.

What we claim as new and useful, and desire to secnrcby Letters Patent, is--

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