Year: 1888

page_text: Date of Application, 2nd Mar, 1888
Complete Specification Left, 27th Oct, 1888
Complete Specification Accepted, 30th Nov., 1888
I, ISAAC BRIGGS, Junior, of Rutland Mills Wakefield in the County of York
Manufacturer, do hereby declare the nature of my said invention to be as follows:-
My invention has for its object an improved device for spinning frames which
enables the operator to more clearly see the ends in passage from the pressing rollers
to the spindle thus saving waste and ensuring better work.
My device consists in the application of an enamelled or other plate about say
1½ inches more or less in width placed immediately behind the threads that is
between the nip of the front rollers and the "pot" or eye in the thread board.
This plate is reversible one side being enamelled white to show behind dark
coloured threads and the other side a dark colour to show behind white or light
coloured threads. These reversible plates are made in suitable lengths to correspond
with the various lengths of thread boards. The plates are carried at each end by
small arms pivotted or hinged at the bottom and which are held in their normal
position by a spring. The arms are hinged or fixed to the thread board so that
the whole moves together. When therefore the thread board has to be raised for
doffing the back of the sight plate strikes the front rollers-or otherwise a suitable
stop or guide may be supplied-which depresses the plate forward so that the
thread board may be raised sufficiently high for the doffing process. When the
thread board is lowered again the before mentioned springs acting upon the hinged
or pivotted arms which hold the reversible plate bring it back to its proper
position. The device is therefore quite self adjusting. The plates simply slide
into grooves in the hinged arms aforesaid and can be removed for cleaning or
reversal at a moments notice.
GEORGE BARKER,
77, Colmore Row, Birmingham.
Agent for Applicant.

page_text: I, ISAAC BRIGGS, Junior of Rutland Mills Wakefield in the County of York,
Manufacturer do hereby declare the nature of my said invention and in what manner
the same is to be performed to be particularly described and ascertained in and by
the following statement:-
My invention has for its object an improved device for spinning frames which
enables the operator to more clearly see the ends in passage from the pressing
rollers to the spindle thus saving waste and ensuring better work.
My device consists in the application of an enamelled or other plate say about
1inches more or less in width placed immediately behind the threads, that is,
between the nip of the front rollers and the "pot" or eye in the thread board.
The plates are enamelled white to shew clearly behind coloured threads; or if
preferred the plates can be enamelled white on one side and black or dark coloured
on the other so as suit light or dark coloured yarns. These plates are made in
suitable lengths to correspond with the various lengths of thread boards. The
plates are carried at each end by small arms which are hinged or fixed to the
thread board so that the whole moves together. When the thread board has to
be raised for doffing the back of the sight plate would strike the front rollers
unless otherwise a suitable stop or guide is provided which is also made to act
upon the hinged arms and thereby retain the plate in its normal position and
this may also be effected by means of a spring, but I prefer the use of the guides
without the spring. When the thread board is lowered again the before mentioned
guides acting upon the hinged or pivoted arms which hold the plate bring it
back to its proper position. The device is therefore quite self-adjusting. The
plates simply slide into grooves in the hinged arms aforesaid and can be removed
for cleaning reversed or withdrawn altogether at a moments notice if required.
In order that my invention may be clearly understood and more easily carried
into practice I have appended hereunto one double sized sheet of drawings shewing
the application of a sight plate to an ordinary spinning frame.
Figure 1 is a cross sectional elevation through the sight plate A and thread
board B which are shewn down in position for spinning.
Figure 2 is a similar cross sectional elevation but shewing the sight plate A
and thread board B raised for the doffing process.
Figure 3 is a similar cross section to Figure 1 with the sight plate A removed
to shew an elevation of the guide arm D.
Figure 4 is a broken off front elevation of Figure 1.
Figure 5 is a sectional plan on the line 1-2 Figure 4. The sight plate A is
placed above the thread board B behind and in a line with the thread and in
front of the pressing roller M the end of the plate A sliding into the groove k¹
in the arm this arm K being hinged at 2 to the thread board B. To the outer
side of the hinged arm K near the top a projecting pin k³ is fixed which slides

page_text: in the guide groove d¹ in the arm D which is fixed to the frame E. When the
thread board B is raised on its hinge for the doffing process the pin working
in the guide groove d' depresses the top of the sight plate A inclining it out of
the way and clear of the roller M and readjusting it in its proper position when
the thread board is again lowered. Instead of the pin and guide D a spring
may be provided for returning the sight plate and thread board to their normal
position and retaining them there but it is not indispensable.
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
First In spinning frames the use of a sight plate A substantially as and for
the purpose herein set forth and illustrated upon the accompanying drawing.
Second-In spinning frames the mode of operating the sight plate substantially
as herein set forth and illustrated upon the accompanying drawings.
GEORGE BARKER,
77, Colmore Row, Birmingham,
Agent for Applicant.