IMPROVEMENTS IN THE MODE OF APPLYING DABBING BRUSHES TO COMBING MACHINES "
Year: 1883

page_text: LETTERS PATENT to Herbert Portway of Bradford and John Charles Walker
of Shipley both in the County of York for an Invention of "IMPROVEMENTS
IN THE MODE OF APPLYING DABBING BRUSHES TO COMBING MACHINES "
PROVISIONAL SPECIFICATION left by the said Herbert Portway and
John Charles Walker at the Office of the Commissioners of Patents on the
6th April 1883.
HERBERT PORTWAY of Bradford and JOHN CHARLES WALKER of Shipley both
in the County of York "IMPROVEMENTS IN THE MODE OF APPLYING DABBING
BRUSHES TO COMBING MACHINES "
Our invention relates to the dabbing brushes employed in wool combing
machines for pressing the wool or other fibre into the teeth of the combs, and the
object of it is to reduce the great wear in such brushes caused by always striking
on the teeth of the comb with the same part of the brush, whilst the bristles on
the other parts of the brush remain almost uninjured or unaffected.
For the above purpose we impart to the brush a slow lateral reciprocating
movement simultaneously with the vertical reciprocating movement. One arrange-
ment for producing the above effect is by constructing the carriage or supports (on
which are mounted the ordinary apparatus for transmitting the vertical movement)
in suitable slides so that it is capable of a lateral reciprocating movement.
This movement is effected by a cam, eccentric, screw or tappet arrangement
actuated from some convenient moving part of the machine. Or the brush may
be suspended on the ordinary vertical slide, by a rod, studs or sliding piece fitted
or provided thereon and so constructed as to allow of the required lateral
reciprocating movement, such movement being produced by cam, eccentric, screw
or tappet arrangement and simultaneously with the vertical reciprocating
movement.
:

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Herbert Portway and John Charles Walker in the Great Seal
Patent Office on the 6th October 1883.
HERBERT PORTWAY of Bradford and JOHN CHARLES WALKER of Shipley both
in the County of York "IMPROVEMENTS IN THE MODE OF APPLYING DABBING
BRUSHES TO COMBING MACHINES."
Our Invention relates to the dabbing brushes employed in wool combing
machines for pressing the wool or other fibre into the teeth of the combs and the
object of it is to reduce the great wear in such brushes caused by always striking
on the teeth of the comb with the same part of the brush whilst the bristles on
the other parts of the brush remain always uninjured or unaffected.
For the above purpose we impart to the brush a slow lateral reciprocating move-
inent simultaneously with the vertical reciprocating movement. One arrangement
for producing the above effect is by constructing the carriage or supports on which
are mounted the ordinary apparatus for transmitting the vertical movements in
suitable slides so that it is capable of a lateral reciprocating movement.
This movement is effected by a cam eccentric screw or tappet arrangement
actuated from some convenient moving part of the machine. Or the brush may
be suspended on the ordinary vertical slide by a rod studs or sliding piece fitted
or provided thereon and so constructed as to allow of the required lateral
reciprocating movement such movements being produced by cam
eccentric
screw or tappet arrangement and simultaneously with the vertical reciprocating
movement
And in order that our Invention may be more completely understood reference
is given to the accompanying drawings and to the letters and marks thercon
DESCRIPTION OF DRAWINGS
Fig 1 is a front elevation and Fig 2 is a side elevation and part section shewing
one arrangement of our Invention. Fig 3 is a part side elevation and section and
Fig 4 a part front elevation and section shewing a modification in the arrangeinents
for imparting a lateral movement to the dabbing brush. Fig 5 is a part front
elevation and section and Fig 6 part side elevation and section shewing further
modifications of the same.
In Figs 1 and 2 a is the top driving shaft of the machine b the carriage in
which the bar c carrying the dabbing brush & slides having a vertical reciprocating
motion imparted thereto from the rope pulley e on the end of the driving shaft a
such motion being transmitted therefrom through rope pulley f crank pin g and
slide block h.
Now in order to impart a horizontal reciprocating movement to the dabbing
brush simultaneously with the vertical reciprocating movement we prefer mounting
the carriage b on the projecting pins i or slides which are attached to to the
pillark and impart to the carriage b so mounted the required horizontal movement
such movement being produced from the driving shaft a through worm worm
wheel m vertical shaft n worm o worm wheel p crank or eccentric q and
adjusting connecting rod r which is attached at s to the dabbing brush carriage b.
The mode of actuating the bar c carrying the dabbing brush & shewn in Figs 3
and 4 is the same as that shewn in and described for Figs 1 and 2 but we mount
the dabbing brush on a frame or carriage t which is fitted so as to slide freely on
parallel studs or pins i attached to the bottom of the bar c. The pins or studs i

page_text: are of such a length as to admit of the frame t carrying the brush sliding the
required distance laterally. The requisite horizontal reciprocating movement is
effected through the medium of the vertical crank u having a cam or eccentric v
keyed or otherwise fastened on its lower end. A slow rotary reciprocating
movement is imparted to the cam which presses alternately against the inner sides
of the carriage & imparting thereto the horizontal reciprocating movement. Such
rotary reciprocating movement of the cam is produced from the driving shaft a
through worm worm wheel m vertical shaft n worm o worm wheel p crank or
eccentric connecting rod r hinged lever wand vertical crank u to which the
cam vis attached.
Instead of imparting a rotary reciprocating motion to the cam v a slow
continuous rotary movement may be imparted thereto.
At Figs 5 and 6 we have shewn the dabbing brush & attached to a circular
cylindrical sliding bar c and to this bar we impart not only the vertical
reciprocating movement but also the rotary or radial reciprocating movement. By
such movement the brush being attached to the bar in the position shewn in the
drawing a radial reciprocating motion is imparted thereto This arrangement is
more especially applicable when the feeding boxes are placed close to the comb
circle. The means employed for imparting the vertical reciprocating movement to
the slide bar is of ordinary construction such bar being actuated from the driving
pulley e through pulley f connecting rod h and coupling stud i The required
rotary reciprocating movement is given to the slide bar from the worm / worm-
wheel m vertical shaft n worm o wormwheel p and crank q being transmitted
therefrom through connecting rod r and lever 8 the boss of which fits in the top
bearing b and is provided with a key fitting the groove c' in the bar c which
allows of the vertical and rotary or radial reciprocating movements being imparted
to the bar c simultaneously.
Besides the arrangements we have shewn from which to obtain and impart the
required borizontal reciprocating motion to the dabbing brush it will be readily
understood that such motion can be imparted thereto from any other convenient
moving part of the machine being transmitted by means of cams eccentrics
screws or tappets, such arrangements for imparting movements of this kind being
well known. The horizontal reciprocating movement herein described may be
applied to Speight's Whitehead's and other vertical dabbing brush motions than
those shewn in the accompanying drawings
Having now described the nature of our said Invention and shewn by the aid
of drawings how the same may be carried into practice we would have it
understood that we do not limit ourselves to the precise details and configuration
of the parts we have described and shewn as the same may be varied without
departing from the nature of our said Invention what we do claim is :-
The employment of dabbing brushes having imparted thereto a horizontal
reciprocating movement in combination with the vertical reciprocating
movement, substantially as and for the purposes herein set-forth.
In Witness whercof we the said Herbert Portway and James Charles
"Walker have hereunto set our hands and seals this thirtieth day of August
in the Year of Our Lord one thousand eight hundred and eighty three