Improvements in Guillotine Cutting Machines.
Year: 1889

page_text: Date of Application, 28th Jan., 1889
Complete Specification Left, 28th Oct., 1889-Accepted, 30th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in Guillotine Cutting Machines.
JAMES WAND READ Pultney Lodge Waltham Cross Hertford Engineer do hereby
declare the nature of this invention to be as follows:-
This invention consists in the application of hydraulic power directly or in-
directly to the machine, with as many hydraulic cylinders as may be required for
the various motions, viz.
3
COMPLETE SPECIFICATION.
Improvements in Guillotine Cutting Machines.
I JAMES WAND READ of Pultney Lodge, Waltham Cross in the county of
Hertford, Engineer do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement :-
My invention consists in the application of hydraulic power directly or indirectly
I employ as many
to the knife and other parts of a guillotine cutting machine.
cylinders as may be required for causing the performance of certain operations in the
machine, that is to say to make the cut, to raise or return the knife, to allow and
govern the descent of the weight which presses the clamp upon the material to be
operated upon and to remove the clamp from the said material after the cut has been
completed. My invention also includes the use of hydraulic power in combination
with any other apparatus used in guillotine cutting machines.
In order that iny invention may be understood and readily carried into effect I
have annexed hereunto a drawing in which Fig. 1 is a side view and Fig. 2 a front
view showing so much of a guillotine cutting inachine as is requisite to illustrate my
invention. The same letters of reference are applied to corresponding parts in both
of the figures of the drawing.
a,
a¹
are the side-framings which may be of any ordinary and suitable construction.
bis the knife constructed in the ordinary manner. Secured to the side-frame a is
a hydraulic cylinder c provided with a ram c for actuating the knife b when a cut
is to be made, which rain c¹ passes through a suitable guide a². d is a bell-crank-
One end of
lever capable of being turned upon a pin d mounted in the side frame a.
the bell-crank-lever d is jointed to the knife and the other end of such bell-crank-
at times acts.
lever d is provided with a bowl or roller d against which the ram
The knife b is also jointed to a bell-crank-lever e capable of being turned upon a pin
or stud e secured in the side framing a'. The bell-crank-levers d and e act as
"radius rods" to control the movement of the knife b. To the bell-crank-lever e is
jointed one end of a rod f the other end of which rod f is jointed to one end of a
lever capable of being turned upon a pin or stud f* secured in or upon a bracket
ID 21

page_text: on a
secured to the side framing a¹. Jointed to the lever f¹ is one end of a rod ƒ*
which is jointed to a lug formed on a ram g passing into a cylinder h. The upper
end of the ram at times acts against a bowl or roller mounted upon a stud j¹
secured to and projecting from one of the levers i, i upon which levers i, i is mounted
the "movable dead weight" of the clamping arrangement.
The general arrange-
ment of the clamping apparatus is similar to that for which Letters Patent dated
May 28th 1879 and numbered 2123 were granted to Richard Furnival. The levers i, i
are situate at opposite sides of the machine and are mounted fast upon opposite ends
of a shaft carried by and capable of being turned in the side framings a, a¹. The
weight may be adjusted by means of the hand wheel so as to be nearer to or
further from the axis of the shaft k as less or greater weight is required upon the
clamp. n is a valve-box to which water under pressure is supplied. By means of
the valve m in the valve box n water may be admitted to or allowed to escape from
the cylinders c, h. A rod o secured to the valve m within the box n is connected to
one end of a lever p capable of being oscillated upon a stud p¹ secured to the side-
framing a. The other end of the lever p is connected by a rod to an arm r mounted
fast upon a short shaft carried by and capable of being turned in the side framing a.
Fast npon the short shaft is a handle s. Jointed to the lever p is a rod t jointed
at one end to one arm of a bell-crank-lever a capable of being turned on a stud u¹
secured in the side frame a The bell-crank-lever u is jointed to one end of a rod v
the other end of which is jointed to a lever w capable of being turned
stud w¹.
When it is desired to operate the machine the attendant moves the handle s
into the position indicated by the dotted lines A. The movement of the handle s
will by moving the valve m in the direction indicated by the arrow B allow water to
act upon the ram and move it in the direction indicated by the arrow C. The
ram c by acting against the bowl d' of the bell-crank-lever d will cause the knife b
to descend and perform the "cut." The descent of the blade will by causing the
bell-crank lever e to turn in the direction indicated by the arrow D, and by means
of the rod f, lever fland rod f2 allow the ram g to descend and expel water from
beneath such ram g. The descent of the ram g will also allow the levers i, i and
weight 7 to descend until a pin ¹ projecting from one of the levers i, i acts upon the
lower end of the slot a formed in the rod a when the clamp will be pressed by the
weight so as to hold the paper or other material being cut by the knife b.
The ascent of the ram c will have caused the upper edge of the bell-crank-lever d to
arrive against: he lever w and turn it upon the stud w¹ in the direction indicated
by the arrow E. The turning of the lever win the direction indicated by the arrow E
will by means of the rod v, bell-crank-lever u, rod t, and lever p cause the rod o and
the valve m actuated thereby to be moved in a direction opposite to that indicated
by the arrow B and bring the said valve m into position for allowing water to pass
from the valve-box n to the cylinder and act upon the ram g so as to raise it.
The
raising of the ram g will by raising the stud clear of the lower end of the slot
allow the clamp to be raised by the counter balance weight y clear of the paper or
other material upon which it previously rested. The ascent of the ram g. will by
means of the rod f², lever f¹ rod f, bell-crank-levers e, and d raise the knife
the position in which it is shown in the drawing. The machine will then remain at
rest until the handle s is again moved into the position indicated by the dotted
lines A.
into
Should an error at any time occur in making the "cut" or should the hardness
of the material being cut or other cause require the descent of the knife b to be
stopped, the descent of the knife may be arrested by the handle & being returned
to the position in which it is indicated by full lines in the drawing.
Although I have only shown and described one method of actuating a guillotine
cutting machine by hydraulic power I would have it understood that I do not confine
myself to the above described method of carrying my invention into effect as other
methods of actuating guillotine cutting machines by means of hydraulic cylinders may
be employed.

page_text: Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A guillotine cutting machine in which the knife when making the cut is actuated
by means of a hydraulic cylinder and ram.
2. A guillotine cutting machine in which the withdrawal of the knife and the
raising of the movable weight of the clamping apparatus are effected by means of a
hydraulic cylinder and ram.
3. For use in a guillotine cutting machine in which the knife when making the
cut is actuated by means of a hydraulic cylinder and ram, arrangements for stopping
the descent of the knife and causing its ascent at any part of its stroke and consisting
in the handle s, shaft r¹, arm r, rod lever p, rod o and valve m arranged
substantially as herein described.
Dated this Twanty cirth day of October 1000
W. T. CHEETHAM,
Manchester, Agent to the Applicant.