Year: 1888

page_text: Date of Application, 26th June, 1888
Complete Specification Left, 26th Mar., 1889
Complete Specification Accepted, 27th Apr., 1889
WILLIAM CULLEN HORNE of 6 Dowgate Hill, London E.C. Merchant do herchy
declare the nature of this invention to be as follows:-
In paper cutting machines as hitherto constructed, the knife has to be taken out to
be sharpened and re-set.
My Invention relates to providing an attachment to ordinary cutting machines
having moveable knives or to the class having stationary knives such as the well
known "EVERSHARP" brand of make-whereby a grinding or sharpening
apparatus can be made to mechanically touch with more or less pressure the edgo of
the knife and seldom or often in accordance with the nature of the work given the
cutting machine.
The economy
consists firstly in that much saving of expense in the labour now
devoted in taking the knives out to be sharpened and in replacing them-secondly in
saving the time that a machine loses in being thrown out of use, whilst knife is being so
removed and replaced-thirdly in the better work the knife can perform in being kept
constantly sharp and fourthly-in that a dull knife needs more power to drive and an
obvious economy is by this invention brought about.

page_text: COMPLETE SPECIFICATION.
Improvements in or Applicable to Paper and Millboard Outting
Machines.
WILLIAM CULLEN HORNE of 6 Dowgate Hill London E.C. Merchant do hereby
declare the nature of my said invention for "IMPROVEMENTS IN OR APPLICABLE TO
PAPER AND MILLBOARD CUTTING MACHINES" and in what manner the same is to bo
performed to be particularly described and ascertained in and by the following
statement:
In paper cutting machines as hitherto constructed the knife has to be taken out to
be sharpened and reset.
My invention relatos to providing an attachment to ordinary cutting machines
having moveable knives, or to the class having stationary knives whereby a grinding
or sharpening apparatus can he made to mechanically touch with more or loss pressure
the edge of the knife seklom or often in accordance with the nature of the work given
the cutting machine, the economy consists firstly in that much saving of expenso in
the labour now devoted in taking the knives out to be sharponed and in re-placing
them. Secondly in saving the time that a machine loses in being thrown out of use,
whilst the knife is being so removed and replaced. Thirdly in the better work the
knife can perform in being kept constantly sharp and fourthly in that a dull knife
needs more power to drive and an obvious economy is by this Invention brought
about.
In order that my said Invention may be properly understood and readily carried
into effect will now proceed to describe the drawings hereunto annexed in which.
Fig. 1. is a side elovation and Fig. 2. a plan of a knife sharponer as constructed
according to my invention and
Fig. 3. is an end elevation of the same.
To two sides of a cutting machine markod, b, and c, having guillotine knives the
cross piece or frame marked A is securely bolled carrying a moveable slide J which
travels from, a, at one end of the screw to, b, at the other end. Motion being given
to the screw E by the gear wheel working in the pinion L attached to one end of a
shaft. To the other end of said shaft the bevol wheel Fis secured which engages with
the bevel wheel G secured on the end of the screw E.
To the said slide a lever is pivotted having at one end a suitablo omery wheel or its
equivalent marked, e, attached for sharpening the knife. The said emery wheel, e, is
kept to its work by means of a spring, attached to the lower arm of the said lever.
A foot pedal (not shown on the drawings) is attached to the rod, d, connected by a
link to the cam, a, which on tho pedal being depressed brings the cam, a, into contact
with the upper arin of the lover carrying the emery wheel e and withdraws it from its
work, the adjustment of the emery whoel e, to the knife, being sharpened, is regulated
by means of the set scrow Q.

page_text: Whilst machines constructed according to my invention are automatic in their
action they may be applied to meet the requirements necessary for sharpening the
cutters or knives of machines either operating at each cut or only occasionally.
The sharpener can be attached to existing four side cutting machines or be fixed to
sharpen on the guillotine itself or on a special frame.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that what I
claim is--
1. Paper or Millboard Cutting Machines having guillotine or other knives-moveable
or fixed the attachment thereto of an automatic sharpening or grinding apparatus
substantially as herein described and shewn on the accompanying drawings.
2. The arrangement of parts constituting an automatic sharpening apparatus or
their equivalents substantially as herein described and shewn on the accompanying
drawings.