AN IMPROVED PROCESS OF DRILLING AND CUTTING PLANE SURFACES IN THE MANUFACTURE OF CRYSTAL, GLASS, OR METAL WARE, AND AN IMPROVED LATHE FOR THIS PURPOSE
Year: 1870

page_text: PROVISIONAL SPECIFICATION left by William Edward Gedge at the
Office of the Commissioners of Patents, with his Petition, on the
27th June 1870.-A communication from abroad by Georges Blau,
of 37, Boulevard Bonne Nouvelle, Paris, France, Manufacturer.
I, WILLIAM EDWARD GEDGE, of the Firm of John Gedge and Son,
of No. 11, Wellington Street, Strand, in the County of Middlesex,
Patent Agent, do hereby declare the nature of the said Invention for
"AN IMPROVED PROCESS OF DRILLING AND CUTTING PLANE SURFACES IN THE
MANUFACTURE OF CRYSTAL, GLASS, OR METAL WARE, AND AN IMPROVED LATHE FOR
THIS PURPOSE," a communication to me from abroad. by Georges Blau, of
37, Boulevard Bonne Nouvelle, Paris, France, Manufacturer, to be as
follows:
This Invention will be best understood by reference to the accompany-
ing Sheet of Drawing, on which,---
No. 1 indicates a fixed or moveable driving cylinder, over which pass
the belts which set in motion the shafts or moveable wings Nos. 6
and 12.

page_text: No. 2, iron frame for supporting the moveable wings or flyers bolted
at the four corners, and which may be fixed anywhere.
No. 3, moveable iron uprights sliding in a groove at top and bottom of
frame by means of the regulating screw No. 4 to advance or retire the
moveable wings which are fixed on these uprights.
No. 4, adjusting screw.
No. 5, brackets for receiving and supporting the moveable wings.
No. 6, moveable wings or flyers moving in a horizontal direction.
No. 7, grooves in the uprights which carry the moveable wings.
No. 8, lubricator of the above.
No. 9, forked bearings to receive the shafts and for perforating or
cutting.
No. 10, small catches on each side the forks to receive a small chain
or cord which passes over the fork No. 11, to which weights are fastened
to bring back the tools on the wings with the requisite pressure on to
the object to be pierced or cut.
No. 11, fork with pulley over which passes the chain or cord with the
pressure weights.
No. 12, drilling or boring shaft turned by means of the belt coming
from the driving cylinder. This shaft is hollowed to a certain length to
receive the sockets of mandrils of any size fixed by the pressure of a
screw.
No. 13, mandrils or tubes representing punches for piercing glass and
other globes.
No. 14, regulating screw.
No. 15, glass or crystal globe set on a support and the two cutters set
to make the perforation from both ends at once.
No. 16, broad strap which passes round the middle of the globe or
shade and keeps it fixed on the support during the piercing.
No. 17, clasp for securing the strap which surrounds the ball.
No. 18, piece of wood hollowed like a bomb placed on the lathe to
support the globe or other article to be pierced or cut; it has an iron
socket, and is fixed at the proper height by a regulating screw.
No. 19, hollow tin cylinder which embraces the piece 18 and the top
of the support along which flows the mordant substance which is supplied

page_text: to the punches or cutters, and which aшs into the basin surrounding the
support, leaving this latter clear.
No. 20, socket of the piece 18.
No. 21, hollow fixed support.
No. 22, shaft for cutting plane surfaces to be set on the same wings
or flyers as the drills, but the stone and the pulley are outside the
fork.
No. 23, large flat and smooth stone against which turns the plate on
which are fixed the pieces to be cut flatwise.
No. 24, pulley of the cutting or grindstone.
No. 25, plate with socket fixed in a drilling shaft with a longer wing
or flyer to reach to the middle or three-fourths of the piece.
The pieces to be cut are incrusted in or otherwise fixed to the plate
No. 25.
No. 26, funnels holding the mordant substance and giving out at the
bottom the quantity necessary to keep the cutter biting.
No. 27, iron rod turning in the funnel to keep its contents liquid.
No. 28, cross bar traversed by the rod No. 27.
No. 29, pulley for keeping rod No. 27 in motion.
No. 30, small conduits leading the mordant on to the cutters.
No. 31, small support into which passes a forked piece embracing the
flyer or wing carrying the shaft, which is so fixed that the tool can never
pass further than required, so that the tool pierces or cuts as lightly or
as deeply as may be desired by regulating the depth beforehand.
These processes may be applied to articles of large or small dimensions
as may be required.