Improvements appertaining to the Pressure-regulating Mechanism of the Drawing-off Rollers of Combing Machines.
Year: 1893

page_text: Date of Application, 23rd Sept., 1893
Complete Specification Left, 23rd June, 1894-Accepted, 28th July, 1894
PROVISIONAL SPECIFICATION.
Improvements appertaining to the Pressure-regulating Mechanism
of the Drawing-off Rollers of Combing Machines.
We, FRED DAVY of Lees near Keighley in the County of York, Foreman
Mechanic, and GEORGE VANHAM of Cross Roads, near Keighley aforesaid,
Combing Overlooker, do bereby declare the nature of this invention to be as
follows:-
In many of the varied pressure-regulating devices for the drawing-off rollers of
combing machines, and more especially so in those wherein a spring with adjusting
screw mechanism is employed at each end of said drawing-off rollers, considerable
loss is entailed by the undue wearing of the bearing-blocks or dies through which
the pressure is exerted upon said rollers, further than which damages through the
loosening or receding of the adjusting screws caused by the vibratory motions of
the machine are frequently incurred.
To prevent such loss and damages and produce mechanism that shall otherwise
perform its functions efficiently is the object of this invention.
To attain such object we attach a spindle to the pressure-block or die on each
end of the roller. This spindle is arranged to pass freely through a hollow
screw which thus forms an appropriate bearing or guide for it by said screw being
loosely inserted into the end part of the usual framework in which the pressure
block is mounted and upon which it slides.
The inner end of this hollow screw passes by being screwed, through a block or
nut fitting against the end of the framework above referred to so as to press against
a washer carried by the above described spindle upon which is also mounted the
usual spiral pressure-spring, while the outer end of said hollow screw is shaped so
that it may be laid hold of by a key by which it may be rotated in order that its
screw thread may cause it to advance towards or recede from the pressure spring.
In the framework, through which this hollow screw passes loosely, is fitted a
set or holding screw which, on the adjusting of said hollow screw, may be
tightened up to prevent said hollow screw from rotating by the vibrations of the
machine.
As an alternative means the screwed block or nut above described may be
dispensed with and the female thread for the hollow screw may be made through
the framework but we preferably make use of such screwed block or nut.
Dated this 22nd day of September 1893.-

page_text: COMPLETE SPECIFICATION.
Improvements appertaining to the Pressure-regulating Mechanism
of the Drawing-off Rollers of Combing Machines.
We, FRED DAVY of 51 Cliffe Hill, Lees near Keighley in the County of York,
Foreman Mechanic, and GEORGE VANHAM of Cross Roads, near Keighley
aforesaid Combing Overlooker, 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 :-
In many of the varied pressure-regulating devices for the drawing-off rollers of
combing machines, and more especially so in those wherein a spring with adjusting
screw mechanism is employed at each end of said drawing-off rollers, considerable
loss is entailed by the undue wearing of the bearing blocks or dies through which
the pressure is exerted upon said rollers, chiefly by reason of said blocks not being
guided or held straight in position; further than this damages through the loosening
or receding of the adjusting screws caused by the vibratory motions of the machine,
are frequently incurred.
To prevent such loss and damages and produce mechanism that shall otherwise
perform its functions efficiently is the object of this invention.
In the accompanying sheet of drawings;―
Figs. 1 and 2 are side elevation and top view of the drawing-off rollers of a
combing machine, together with the bearings for same with our improved parts
applied.
Fig. 3 is a sectional top view of parts shown by Figs. 1 and 2.
Fig. 4 is a part sectional elevation of same.
Fig. 5 is a drawing in detail hereinafter described.
с
To attain the object of our invention we attach a spindle a to the pressure-block
or die bat each end cc' of the roller d. This spindle a is arranged to pass freely
through a hollow screw f which thus forms an appropriate bearing or guide for it
by said screw being loosely inserted into the end part g of the usual framework h
in which the pressure block is mounted and upon which it slides.
9
The inner end of this hollow screw passes (by being screwed through a block
or nut fitting against the end of the framework h above referred to) so as to
pass against a washer m carried by the spindle a upon which is also mounted the
usual spiral pressure spring n, while the outer end 2 of said hollow screw fis
shaped so that it may be laid hold of by a key by which it may be rotated in order
that its screw thread may cause it to advance towards or recede from the pressure
spring n.
The spindle a by being firmly fixed to the block or die and made to slide
through the hollow screw forms a firm and reliable guide for said block so that
its uneven wear is prevented.
In the end part of the framework h, is fixed a set-screw p which, on the
adjusting of said hollow screw, may be tightened up to prevent said screw / from
being rotated by the vibrations of the machine.
As an alternative means the screwed nut kabove described may be dispensed
with and the female thread for the hollow screw f may be made partly through
the party of the framework has shown by Fig. 5, the set-screw p in this case being
made to pass through the plain or unscrewed part of said framework, however we
preferably follow the method of construction first before described.
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. The combination with the drawing-off rollers of a combing machine of the

page_text: bearing blocks for same, guide-spindles attached to said bearing blocks, hollow
screws taking over said spindles, screwed nuts or blocks for same, and set-screws
for securing the several parts in position substantially as herein specified.
2. The combination of drawing-off rollers, bearing-blocks having guide spindles
as described, hollow screws for guiding said spindles, springs mounted on said
spindles and framework or parts screwed for the reception or insertion of the hollow
screws substantially as herein set forth and for the purpose specified.
Dated this 22nd day of June 1901
FRED DAVY,
GEORGE VANHAM,
Per Samuel Hey,
Agent.
FRED DAVY,
GEORGE VANHAM,
Per Samuel Hey,
Agent.