IMPROVEMENTS IN MACHINES FOR THE MANUFACTURE OF SCREWS
Year: 1882

page_text: LETTERS PATENT to William Robert Lake of the firm of Haseltine Lake
& C° Patent Agents, Southampton Buildings, London for an Invention of
"IMPROVEMENTS IN MACHINES FOR THE MANUFACTURE OF SCREWS" Com-
municated to him from abroad by Antoine Faugier, of Lyons, France, Bolt
Manufacturer.
PROVISIONAL SPECIFICATION left by the said William Robert Lake at the
Office of the Commissioners of Patents on the 30th December 1882.
WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, and Co., Patent Agents,
Southampton Buildings London, "IMPROVEMENTS IN MACHINES FOR THE MANU-
FACTURE OF SCREWS" [A communication to him from abroad by Antoine Faugier,
of Lyons, France, Bolt Manufacturer.]
In machines heretofore employed for the manufacture of screws by pressure
between rollers, it is impossible to obtain a series of screws having exactly the
same diameter owing to the difficulty of preventing the screw-forming rollers
moving away from one another
The present Invention has for its object to provide novel means or devices,
which, when applied to machines for the manufacture of screws by pressure, will
obviate the tiability of the rollers to separate and thus permit me to obtain screws
of uniform diameter.
In carrying the said Invention into practice I place a washer or ring upon the
front part of the rollers; this washer or ring is held in position by friction rollers
carried by fixed pins. When the piece to be screwed is introduced between the
rollers, the latter being held by the said washer or ring, cannot move away from
one another, and they impart movement to the said washer or ring. I also employ
two wedges capable of adjustment for maintaining in position the bearings of the
said rollers.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Robert Lake in the Great Seal Patent Office on the
27th June 1883.
WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake & Co, Patent Agents,
Southampton Buildings, London, "IMPROVEMENTS IN MACHINES FOR THE MANU-
FACTURE OF SCREWS A cominunication to me from abroad by Antoine Faugier,
of Lyons, France, Bolt Manufacturer,
»
In machines heretofore employed for the manufacture of screws by pressure
between rollers, it is impossible to obtain a series of screws having exactly the
same diameter, by reason of the difficulty experienced in preventing the separation
of the screw-forming rollers.
The present invention has for its object to provide novel means or devices which,
when applied to machines for the manufacture of screws by pressure, will obviate
the liability of the rollers to separate and thus enable screws to be made of
uniform diameter.
The accompanying drawing illustrates in section and elevation a machine to
which the said devices are applied. I place a washer or ring A upon the front part
of the pressure rollers M; this washer or ring is held in position by two friction
rollers B. When the piece to be screwed is introduced between the pressure
rollers, the latter being held by the said washer or ring A cannot move away from
one another and, by reason of their rotary movement, they impart a circular
movement to the said washer or ring and thus a simple rolling friction is
produced.
I also employ two wedges C and D for maintaining the bearings of the pressure
rollers rigidly in the proper position.
Having thus fully described the said invention as communicated to me by my
foreign Correspondent and the manner of performing the same I wish it understood
that I claim.
In a machine for manufacturing screws by pressure between rollers, the employ-
ment of the ring or washer and the wedges, substantially as, and for the purposes,
Bet forth.
In witness whereof I the said William Robert Lake have hereunto set my
hand and seal this twenty third day of June in the year of our Lord One
thousand eight hundred and eighty three.