IMPROVEMENTS IN MOULDS FOR THE MANUFACTURE OF GLASS BOTTLES AND SIMILAR ARTICLES
Year: 1877

page_text: LETTERS PATENT to Pierre Adolphe Caluc, of No. 6, Cours d'Alsace-Lorraine,
Bordeaux, in the Republic of France, Civil Engineer, for the Invention of
"IMPROVEMENTS IN MOULDS FOR THE MANUFACTURE OF GLASS BOTTLES
AND SIMILAR ARTICLES."
Sealed the 1st February 1878, and dated the 9th August 1877.
PROVISIONAL SPECIFICATION left by the said Pierre Adolphe Cahuc
at the Office of the Commissioners of Patents on the 9th August 1877.
PIERRE ADOLPHE CAHUC, of No. 6, Cours d'Alsace-Lorraine, Bordeaux, in the
Republic of France, Civil Engineer. "IMPROVEMENTS IN MOULDS FOR THE MANU-
FACTURE OF GLASS BOTTLES AND SIMILAR ARTICLES."
My Invention consists in a metallic mould furnished with a cover and turning by
means of a suitable arrangement of gearing. At the bottom of the mould is a fixed
metallic cavity in which I place a hollow bottom of any suitable material, being a
non-conductor of heat. This fixed part of the mould rests on a support, in the
interior of which passes a rod moved by a treadle, the object of which is to raise up
the bottom of the bottle.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Pierre Adolphe Cahuc in the Great Seal Patent Office on the 8th
February 1878.
PIERRE ADOLPHE CAHUC, of No. 6, Cours d'Alsace-Lorraine, Bordeaux, in the
Republic of France, Civil Engineer. " IMPROVEMENTS IN MOULDS FOR THE
MANUFACTURE OF GLASS BOTTLES AND SIMILAR ARTICLES."
My Invention consists in a metallic mould furnished with a cover and turning by
means of a suitable arrangement of gearing. At the bottom of the mould is a fixed
metallic cavity, in which I place a hollow bottom of any suitable material, being a
non-conductor of heat. This fixed part of the mould rests on a support, in the
interior of which passes a rod moved by a treadle, the object of which is to raise up
the bottom of the bottle.
But to make my Invention better understood, I will now proceed to describe the
same by reference to the accompanying Drawing, in which Figure 1 shews a vertical
section and Figure 2 a side elevation of a mould, with its accessories, constructed
according to my Invention; Figure 3, a detail.
Similar letters in all the Figures represent similar parts.
e, e, is a fixed cylinder, and E is a moveable cylinder in which is screwed the
mould M; m is a small cast-iron ring or washer holding the funnel n, in which is
placed my improved hollow bottom, which is made of any suitable material being a
bad conductor of heat, such as clay or slate; o, o¹, is a metal ring on which the mould
M rotates; K is an arm serving to close and open the mould; a is a cylinder having
an upward movement communicated to it by the treadle Z, and serving for raising
the bottom of the bottle when it is blown. The cylinder a is lowered into its
former position by means of a weight P when the pressure of the foot is taken off
the treadle Z.
Motion is communicated by means of the shaft r turning the spur wheel R, and,
consequently, the pinion R' fixed to the cylinder E, which carries the revolving
mould M, while the bottom T remains fixed.
I prefer arranging the joint between the clay mould and the cast-iron mould as
shewn in Figure 3. The cast-iron jacket n of the clay mould T terminates straight,
as shewn, and the clay forms an inclined surface within, against which slides the
bevelled edge of the metal washer o, o¹, fixed to the lower part of the moveable
mould M.
Having thus described my Invention and the manner of performing the same,
I wish it to be understood that what I claim is,―
Firstly. The construction of revolving moulds in two parts, one part fixed and
the other part moveable, the fixed part forming the bottom, substantially as herein-
before described.
Secondly. The employment, for forming the bottom of the mould or its lining, of
refractory clay or other suitable substance which is a bad conductor of heat.
Thirdly. The arrangement for forming the joint between the moveable mould and
its fixed bottom, as herein-before described.
In witness whereof, I, the said Pierre Adolphe Cahuc, have hereunto set
my hand and seal, this First day of February, in the year of our Lord One
thousand eight hundred and seventy-eight.
CAHUC. (L.S.)
Cours d'Alsace-Lorraine, 14.