Improvements in an Apparatus for Cutting Knitting Machine Needle Beds.
Year: 1891

page_text: Date of Application, 23rd Feb., 1891
Complete Specification Left, 18th June, 1891-Accepted, 23rd Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in an Apparatus for Cutting Knitting Machine
Needle Beds.
We W. ROTHWELL & Co. LTD. and WILLIAM ROTHWELL Managing
Director of the W. Rothwell & Co. Ld. of Albert Works, Bridgman Street in
the Town of Bolton in the County of Lancaster do hereby declare the nature
of this invention to be as follows:-
Our improvement consists in so constructing the cutters used in cutting grooves
for needle beds of knitting machines, and also the tools necessary for reproducing
the said tool accurately giving the advantage of being able to cut two, three, four
or more grooves at one operation & thereby greatly facilitates the production.
The method is the use of a hollow spindle provided with a collar recessed out, to
clip on the outer circumference of said collar, and screwed or chased up to said
collar. In the said collar is fixed a small projecting stud to prevent the cutter
discs from turning on the said hollow spindle. A loose collar or washer is
provided with hole to suit projecting stud fixed in collar of the said hollow
spindle, also two lock nuts. The cutters are formed of circular discs of sheet steel,
of such thickness to suit the various gauges, and are placed betwen the said collar
on hollow spindle and loose washer and tightened by the two lock nuts.
The said hollow spindle is then placed upon an ordinary mandril and cut to the
required gauge, by a tool provided with teeth and made exact to the gauge required
which will reproduce as many cutters as may be wanted.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that
what we claim is
(1). A simple construction of cutter holder as described.
(2). A cutter holder whereby any one cutter can be replaced at will.
(3). A tool that will reproduce cutters perfectly accurate to one gauge.
WM. ROTHWELL.
Per pro W. ROTHWELL & CO., LIMITED.
F. W. Rothwell, Secretary.
WM. ROTHWELL.
Per pro W. ROTHWELL & CO., LIMITED.
F. W. Rothwell, Secretary.
COMPLETE SPECIFICATION.
Improvements in an Apparatus for Cutting Knitting Machine
Needle Beds.
We W. ROTHWELL & Co. LD. and WILLIAM ROTHWELL Managing
Director of the W. Rothwell & Co. Ld. of Albert Works Bridgman Street in
the Town of Bolton in the County of Lancaster do hereby declare the nature of
this invention and in what manner the same is to be performed to be particularly
described & ascertained in & by the following statement :-
Our improvement consists in so constructing the cutters & the appliance for
using the same so as to cut two, three, four or more grooves in the needle beds of
knitting machines at one operation & thereby greatly facilitates the production.
The cutter spindle A has upon the outer end a collar, against which the loose bush
or cutter holder B is held by the nut C. The cutters being turned the same
thickness as the grooves to be cut they are together with the distance pieces D
held in place against the collar of the said loose bush by the nut E. To enable the
spindle A to be held firmly without vibration or end play we make the bearing for
Parce 61

page_text: same adjustable by the use of two cones F held in position by the lock nuts G &
the spindle A being drawn up tightly to the collar by the nut H and on the said
spindle is fixed a small projecting stud to prevent the cutter holder from turning.
The cutters are formed of circular discs of sheet steel turned to such thickness as
to suit the various gauges and are placed between the said distance pieces on the
cutter holder & tightened by the two lock nuts:
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
(1). A simple construction of cutter holder as described.
(2). A cutter holder whereby any one cutter can be replaced at will.
Dated this 17th day of June 1891.
Per pro W. ROTHWELL & CO., LIMITED.
F. W. Rothwell, Secretary.
WM. ROTHWELL,
Managing Director.