US91119A - Improved solid glass-ware mould - Google Patents

Description

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ROBERT D. HAINES, OF CAMBRIDGE, ASSIGNOR TO THE BOSTON SILVER-GLASS COMPANY, OF BOSTON, MASSACHUSETTS.l

Letters Patent No. 91,119, dated June 8, 1869.

IMPROVE!) SOLID GLASS-WARE MOULD.

To all whom it may concern:

Beit known that I, ROBERT D. HAINns, of Canibridge, in the county, of Middlesex, and State of Massachusetts, have invented an Improvement in Solid Glass-Ware Moulds.; and I dohereby declare that the lfollowing, taken in connection with the drawings which accompany and form part of this specification, is a description of my invention, sufficient to enable those skilled in the art to practise it.

The improvement relates to the construction of that class of moulds forforming glass-ware in which shallow dishes are pressed into'shape in a matrix made in the face of a solid metal die.

In the continuous use of such a die, the metal soon becomes so heated that the formed dish will not drop from it readily, and the operation of mouldingr has to bel suspended until the mould has cooled.

In my invention, I make a solid metal die-wheel, with a series of peripheral matrices, and so mount this wheel upon a stand that it can be rotated, to bring each matrix in succession uppermost, or in position. for Vthe action of theplunger, the' dat face or outer rim of the matrix which is lowermost resting upon the base of the stand, and holding the die stationary during the moulding-operation.

Itis this construction that constitutes my invention.

The drawings represent a die embodying the improvement.

A shows a central vertical longitudinal section of it, and

B is a transverse central section of it.

c denotes a solid metal die-wheel, having on one side a gudgeon, b, mounted in a swivelling bearing, c, hung in a standard, d, and on the opposite side a handle, c, projecting through a vertical slot, f, in an upright, g.

In the peripheral face of the die-wheel, I form a series of matrices, h, as seenin the drawings, there being preferably an even. number of said matrices, so that each is diametiieally opposite to another.

The two standards d g rise from a base-plate, t, upon which isa projection, 7a, which iits into the outer part of the lowermost matrix h, and serves to hold the diewheel in position, while the plunger l is operating, to

The Schedule referred to in these Letters Patent and making part of the same.

press the glass into form in the opposite or uppermost matrix.

The operation of the die-wheel is as follows:

The wheel being in position, as seen in the drawing, the metal, or molten glass to be pressed is put into the upper matrix, the ring m is put in place, and the plunger' is then brought down upon the glass, the plunger and matrix imparting the desired form to the glass, as in other similar moulds. The plunger is then raised, and the ring is removed. Then, by taking hold of the handle, the moulder lifts the Wheel on its swiv- -elling bearing c, disengages the lower matrix from the projection k, so that the wheel can be rotatively moved on such bearing, and turns the wheel until the next matrix is brought uppermost, when he lets the wheel down again, thereby bringing the projection k into the opposite matrix, so that the wheel Will be held stationary during the next moulding-operation, the plunger then operating against the metal dropped into the upper mould, and thus the moulding is continued.

The moulded article stays in the mould when the wheel is turned, after the plunger is raised, and drops therefrom when the wheel is a second time moved, and the large body of metal in the Wheel, and the interval of time between the use of each mould to form one article, and its again reaching the uppermost position, keeps each mould in readiness for use in its turn, without its ever becoming too much heated for such use in its turn.

By this construction, the moulder can keep constantly at work, and can mould much faster than where he has to use separate or independent moulds, or Wait for his moulds to cool.

I claim a solid glass-ware mould, having a series of peripheral matrices, substantially as described.

I also claim, in combination with such mould, the means for bringing each matrix successively into position, and for preventing movement of the mould during the action of the plunger', substantially as described.

ROBERT D. HAINES. Witnesses:

J. B. GRosBY, FRANCIS GOULD.

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