IMPROVEMENTS IN PAPER- CUTTING MACHINES
Year: 1878

page_text: LETTERS PATENT to William Whitehead, of Manchester, in the County of
Lancaster, Machine Maker, for the Invention of "IMPROVEMENTS IN PAPER-
CUTTING MACHINES."
Sealed the 10th January 1879, and dated the 9th September 1878.
PROVISIONAL SPECIFICATION left by the said William Whitehead at the
Office of the Commissioners of Patents on the 9th September 1878.
WILLIAM WHITEHEAD, of Manchester, in the County of Lancaster, Machine
Maker. "IMPROVEMENTS IN PAPER-CUTTING MACHINES."
My Invention consists in an improved combination of machinery for moving the
press up and down to hold or release the paper to be cut.
''
On the driving shaft of the machine are a fast and loose pulley as usual, and to
the loose pulley is cast or fixed a bevel wheel which drives a similar wheel on a
side shaft, on which are two bevel wheels; on these wheels are cast clutch "boxes,
and between them is a sliding clutch box connected to the side shaft by a key and
groove. Both the bevel wheels with clutch boxes gear into a similar wheel on an
upright shaft, which by suitable gearing gives motion to a wheel, the boss of which
forms a nut for the screw connected to the press.
By this arrangement when the sliding clutch box is moved to one side or the
other it imparts the requisite motion for raising or lowering the press, and when it
is in the central position the press is stationary.
My Invention may be modified by using friction cones instead of clutch boxes;
and the gearing from the driving shaft to the wheel on the screw of the press may
also be varied.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Whitehead in the Great Seal Patent Office on the 7th
March 1879.
WILLIAM WHITEHEAD, of Manchester, in the County of Lancaster, Machine
Maker. IMPROVEMENTS IN PAPER-CUTTING MACHINES."
"
My Invention consists in an improved combination of machinery for moving the
press up and down to hold or release the paper to be cut.
And in order that my Invention may be fully understood and readily carried
into operation, I will proceed to describe the accompanying Sheet of Drawings.
Fig. 1 is an end view, and Fig. 2 a front view of a paper-cutting machine to
which my improvements are applied.
a, a, are the end frames; b, the top beam; c, the table; p, the press; and d, the
driving shaft, on which is a fast and loose pulley d' and d² as usual. To the loose
pulley d is cast or fixed the bevel wheel d³, which drives a similar wheel e¹ on the
side shaft e, on which are mounted loose the two bevel wheels e² and e³, in which
are conical annular recesses forming friction boxes, and between them is a sliding
friction box e¹ connected to the side shaft e by a key and groove; this friction box
is moved to and fro by the lever e³. Both the bevel wheels e² and e³ gear into a
similar wheel f¹ on the upright shaft f, which by means of the mitre wheels f² and
g gives motion to the horizontal shaft g, on which is the bevel pinion g¹ gearing
into the wheel h¹ connected to the end of the screw h by a key and groove: The
shaft is screwed and passes through a nut let into the top beam b, and the lower
end of the screw is connected in the usual manner to the press p.
I.
By this arrangement when the sliding friction box e is moved to one side or the
other it causes either of the wheels, e or e³, to revolve, thereby imparting the
requisite motion-to-the-upright shaft f and horizontal shaft g for raising or lowering
the press, and when the sliding box e¹.is in its central position the press remains
stationary.
The knife for cutting the paper, and the mechanism for actuating the same, aro
made in any approved manner.
Having thus stated the nature of my Invention, and described the manner of
performing the same, I wish it to be understood that I do not intend to limit myself
to the details given, as clutch boxes may be used in lieu of the friction boxes
described, and the gearing from the driving shaft d to the wheel on the screw h for
actuating the press may also be modified; but what I claim is, the improved
combination of machinery, consisting principally of the side shaft e driven by a
wheel cast or fixed to the loose pulley on the driving shaft, and the double friction
boxes or clutch boxes for moving the press up or down, as shewn and described.
In witness whereof; I, the said William Whitehead, have hereunto set my
hand and seal, this Sixth day of March, One thousand eight. hundred and
seventy-nine.