Improvements in Apparatus for Cutting Hair, Wool, or other Material.
Year: 1890

page_text: Date of Application, 29th July, 1890
Complete Specification Left, 16th Feb., 1891-Accepted, 21st Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Cutting Hair, Wool, or other
Material.
I, PICTON JONATHAN BLYTI, of 36, Basinghall Street, in the City of
London, Merchant, do hereby declare the nature of this invention to be as
follows:-
°
My invention relates to apparatus known as "clippers for cutting hair, wool, or
other materials such as grass, or corn where the cutting knives are of a similar
character to those of horse-clippers.
Its object is the reduction of friction between the cutting plates, one of which is
caused to reciprocate upon the face of the other and against which for maximum
cutting efficiency it should be pressed with a considerable amount of pressure. The
friction thus set up by the said pressure may be considerable in the ordinary
arrangements and proves a great detriment for manual use in the ordinary hand-
clippers.
In order to reduce the said friction as much as possible I employ a cylindrical
roller or rollers placed in a slotted box or boxes under a nut or nuts producing the
required pressure of the upper plate upon the lower.
I make the slots in the said boxes of sufficient length to allow the cylindrical
roller or rollers to travel therein longitudinally and in the same direction with the
reciprocating travel of the upper plate.
The cylindrical roller or rollers are made of hard material such as tempered
steel, and are of such diameter, relatively to the depth of the slot, that the lower
faces of the rollers project slightly beyond the lower edges of the box, and take a
bearing directly upon the upper face of the upper travelling cutter, the upper faces
of the said rollers resting on the inner upper surfaces of the same box or boxes.
The holding down bolts are rivetted or otherwise secured to the bottom cutter
and pass through suitable slots in the upper cutter and through the top of the said
roller box and they are provided with suitable nuts by which the required working
pressure is applied to the said cutters. The said holding down bolts and roller box
or boxes thus remain stationary with the lower cutter, and the pressure is trans-
mitted to the upper cutter through the said antifriction rollers. When reciprocation
therefore takes place to effect the desired cutting, the upper moving cutter causes
the said cylindrical anti-friction rollers to roll in the direction of the motion back-
wards and forwards without rubbing friction within the said roller boxes.
The friction of the sliding movement is therefore greatly reduced by the rolling
motion of the said anti-friction rollers, and the operation of the cutters materially
facilitated..
" Clark's
This arrangement may be adapted to the present clippers, known as
Patent, without any alteration beyond the addition of the said roller boxes and
anti-friction rollers.
Dated this 20th day of Jul 1800
FELL & WILDING,
1, Queen Victoria Street, E.C., Agents for the Applicant.

page_text: In order to reduce the friction as much as possible, I employ one or more
cylindrical rollers A. A placed in a slotted box or boxes B being held down with
the required pressure by a suitable nut or nuts C thus pressing the upper plate D
upon the lower plate Dr.
I make the slots in the said box B of sufficient length to allow the cylindrical
roller or rollers A to travel therein longitudinally and in the same direction with
the reciprocating travel of the upper plate D in such a manner as not to touch the
edges of the slots nor one another. The cylindrical roller or rollers A are made of
hard material such as tempered steel, and are of such a diameter relatively to the
depth of the slot in the box B, that the lower faces of the rollers A project slightly
beyond the lower edges of the boxes B and take a bearing directly upon the upper
face of the upper travelling plate D. The upper faces of the said rollers A rest on
the inner upper surfaces of the box or boxes B. The holding down bolts F are
rivetted or otherwise secured to the bottom cutter plate D₁ and pass through
suitable slots d in the upper cutter plate D', and through the top of the roller box
or boxes B. Upon the upper part of the holding down bolts, nuts C are provided
by which the required working pressure is supplied to the cutting plates D D', the
holding down bolts F and the roller box or boxes B thus remaining stationary with
the lower cutter D', and the pressure is transmitted to the upper cutter plate D
through the said anti-friction rollers A. When reciprocation therefore takes place
to effect the desired cutting, the upper moving cutter plate D causes the said
cylindrical anti-friction roller A to roll in the direction of the motion backwards
and forwards, without rubbing friction within the said roller boxes. The friction of
the sliding movement is therefore greatly reduced by the rolling motion of the said
anti-friction rollers A and the operation of the cutter plates is materially facilitated.
This arrangement may be adapted to the present clippers known as
"Clark's
Patent without any alteration beyond the addition of the said roller boxes B and
the anti-friction rollers A.
"
:
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
1st. In an apparatus for clipping or cutting hair, wool, or similar material the

page_text: combination of tlic cutting knives with a box or boxes within which cylindrical
rollers are situated, free to roll in the direction of reciprocating movement of the
knives one to the other, the box or boxes being attached to one knife so as to exert
a pressure on the other through the medium of the rollers.
2nd. The construction and arrangement of an apparatus for clipping or cutting
hair, wool or similar material, substantially as described and illustrated in the
drawings.
Dated this 16th day of February 1891.
FELL & WILDING,
1, Queen Victoria Street, London, E.C., Agents for the Applicant.