Improvements in the Process of and Appliances Employed in the Manufacture of Hackling and other Machine Sheets.
Year: 1889

page_text: Date of Application, 18th July, 1889
Complete Specification Left. 3rd Apr., 1890-Accepted 3rd May, 1890
PROVISIONAL SPECIFICATION.
Improvements in the Process of and Appliances Employed in the
Manufacture of Hackling and other Machine Sheets.
I JAMES BARBOUR, of Falls Foundry, Belfast, County Antrim, Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to the "sheets" of hackling machines, and of other machines,
in which leather sheets spaced to gear into corresponding cogs, are used, and consists
of an improved manufacture of such sheets by employment of the processes and
appliances hereinafter set forth.
The sheets referred to are constructed of leather, and are provided with eyes pitched
to gear with projections on the driving pulleys or with teeth or dogs so spaced on the
inner or driven surface of the sheet as to coincide, and gear with spaces or recesses
formed in the circumference of the driving pulleys over which the sheet passos,
thereby to ensure a "positive" motion, or driving of the sheets by the pulleys.
By reason however, not only of the stretching of the sheet, as a whole, but of
the inequalities of stretching of portions of one, and the same sheet, arising through
variation in the nature of the several parts of which the whole sheet is composed,
the desired correspondence, between the eyes, teeth, or dogs, and the projections or
recesses, has heretofore been imperfectly obtainable in practice and such defect is
detremental to the full effective working of the machine.
The processes of manufacture and the use of appliances as follows, remedy the defect
heretofore existing.
According to this my invention after having selected the most suitable parts of
the hides, I cut from it strips in number, and width sufficient to make two, or three
portions of a sheet, and the several strips are steeped in water until soft, whereupon
screw clamping bars having their inner surfaces, grooved, or corrugated so as to
ensure firm grip without injury to the leather, are secured to the opposite ends of
each strip, and the bars and strip are suspended, weights being applied to hooks,
attached to the lower clips, and suspending ropes are passed through hooks, applied
to the upper clips, so that there is perfect freedom for movement, and there is thus
put upon each and every strip a tensile strain, which stretches any and every.
portion, which cannot resist the strain without enlongation because the manner in
which the strips are suspended, and the clamps to which the weights are hung
permit the strip to stretch, according to its nature, even if the stretch or giving be
not equal throughout the length and width of the strip.
The strips are weighted, and hung as described, until dry, when they are taken
down, and squared, or cut to the required size for the sheet and the latter is under
tensile strain whilst the pitch or distance apart of the eyes, or holes for the teeth or
dogs are marked, and punched, so that the eyes teeth or dogs, are inserted, and
secured to the sheets, whilst the latter are under conditions practically the same, as
occupied on the machine under their (the sheets) ordinary working conditions, and
and fixed as to
the sheet has through the processes of its manufacture become "set
enlongation, and thereby ensures correct gearing between the eyes, teeth, or dogs,
and the projections, or recesses of the pulleys, the two constituting practically chain
gearing.
DJ this
WALTER
BRIERLEY,
Central Chambers, Halifax, Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in the Process of and Appliances Employed in the
Manufacture of Hackling and other Machine Sheets.
1. JAMES BARBOUR of Falls Foundry, Belfast, in the County of Antrim Machine
Maker, 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 :-
This invention relates to the "sheets" of hackling machines, and of other machines,
in which leather sheets with holes punched therein, spaced to gear with correspond-
ing cogs are used, and consists of an improved manufacture of such sheets, by
employment of the processes, and appliances hereinafter set forth.
The sheets referred to are constructed of leather, and are provided with eyes
pitched to gear with projections on the driving pulleys, or with teeth or dogs, which
are so spaced on the inner, or driven surface of the sheet, as to coincide, and gear with
spaces, or recesses formed in the circumference of the driving pulleys over which the
sheet passes, thereby to ensure a positive motion, or driving of the sheets by the
pulleys.
"
23
By reason however, not only of the stretching of the sheet as a whole, but of the
inequalities of stretching of portions of one, and the same sheet, arising through
variation in the nature of the several parts of which the whole sheet is composed, the
desired correspondence, between the eyes. teeth, or dogs, and the projections, or
recesses, has heretofore been imperfectly obtainable in practice, and such defect is
detrimental to the full effective working of the machine.
The object of this my said invention is to obviate the stretching of the sheets by
previously soaking, and steeping the hide, or leather, from which the sheet is to be
made, in water until quite soft, and pliable, when clips, or clamps are secured to each
end, and the hide, or leather strip is suspended with weights at its lower end, which
stretch the said hide, or strip, and, when dry, the latter is ready to be formed into, a
sheet, or part of one as desired.
Such being the nature, and object of my said invention the following is a
complete description of same, reference being made to the accompanying drawings
in which
Fig. 1. is a front elevation of a strip of hide, or leather in a wet, and pliable
condition, and undergoing the stretching operation, by being suspended, and weighted
at its lower end.
Fig. 2. is a similar view to Fig. 1. but shewing the strip of hide, or leather when
stretched, and dried.
Fig. 3. is an end view of stretching appliances, drawn to enlarged scale, as
compared with Figs. 1. and 2.
Fig. 4. is a front elevation of Fig. 3.
Fig. 5. is an end sectional elevation of one of the clamping bars about full size.
According to this my invention after having selected the most suitable part of the
hide or hides, I cut therefrom strips 1, in number, and width sufficient to make two,
or three portions of a sheet, and the several strips 1, are steeped in water, until soft,
and pliable, whereupon screw clamping bars 2. 2. having their inner surfaces grooved,
or corrugated as at 3, so as to ensure a firm grip without injury to the leather, are
secured, by the nuts and bolts 4. 4. and the clips, or clamps 5. 5. to the opposite ends of
each strip 1, and the clamping bars 2. 2. and strip 1. are suspended, weights 6. 6. being
applied to hooks 7. 7. nttached to the lower, or bottom clamping bars 2. 2 and
suspending ropes S. 8. are passed through hooks 9. 9. applied to the upper, or top
clamping bars 2. 2. so that there is perfect freedom for movement, and there is thus
put upon each, and every strip 1. a tensile strain which stretches any, and every
portion which cannot resist the strain without elongation, because the manner in
which the strips 1 are suspended, and the clamping bars 2. 2. to which the weights 6. 6.

page_text: Date of Application, 18th July, 1889
Complete Specification Left, 3rd Apr.. 1890-Accepted 3rd May, 1890
PROVISIONAL SPECIFICATION.
Improvements in the Process of and Appliances Employed in the
Manufacture of Hackling and other Machine Sheets.
I JAMES BARBOUR, of Falls Foundry, Belfast, County Antrim, Engineer, do hereby
declare the nature of this invention to be as follows:-
:-
This invention relates to the "sheets" of hackling machines, and of other machines,
in which leather sheets spaced to gear into corresponding cogs, are used, and consists
of an improved manufacture of such sheets by employment of the processos and
appliances hereinafter set forth.
The sheets referred to are constructed of leather, and are provided with eyes pitched
to gear with projections on the driving pulleys or with teeth or dogs so spaced on the
inner or driven surface of the sheet as to coincide, and gear with spaces or recesses
formed in the circumference of the driving pulleys over which the sheet passes,
thereby to ensure a positive" motion, or driving of the sheets by the pulleys.
८८
By reason however, not only of the stretching of the sheet, as a whole, but of
the inequalities of stretching of portions of one, and the same sheet, arising through
variation in the nature of the several parts of which the whole sheet is composed,
the desired correspondence, between the eyes, teeth, or dogs, and the projections or
recesses, has heretofore been imperfectly obtainable in practice and such defect is
detremental to the full effective working of the machine.
The processes of manufacture and the use of appliances as follows, remedy the defect
beretofore existing.
According to this my invention after having selected the most suitable parts of
the hides, I cut from it strips in number, and width sufficient to make two, or three
portions of a sheet, and the several strips are steeped in water until soft, whereupon
screw clamping bars having their inner surfaces, grooved, or corrugated so as to
ensure firm grip without injury to the leather, are secured to the opposite ends of
each strip, and the bars and strip are suspended, weights being applied to hooks,
attached to the lower clips, and suspending ropes are passed through hooks, applied
to the upper clips, so that there perfect freedom for movement, and there is thus
put upon each and every strip a tensile strain, which stretches any and every
portion, which cannot resist the strain without enlongation because the manner in
which the strips are suspended, and the clamps to which the weights are hung
permit the strip to stretch, according to its nature, even if the stretch or giving be
not equal throughout the length and width of the strip.
The strips are weighted, and hung as described, until dry, when they are taken
down, and squared, or cut to the required size for the sheet and the latter is under
tensile strain whilst the pitch or distance apart of the eyes, or holes for the teeth or
dogs are marked, and punched, so that the eyes teeth or dogs, are inserted, and
secured to the sheets, whilst the latter are under conditions practically the same, as
occupied on the machine under their (the sheets) ordinary working conditions, and
set and fixed as to
the sheet has through the processes of its manufacture become
enlongation, and thereby ensures correct gearing between the eyes, teeth, or dogs,
and the projections, or recesses of the pulleys, the two constituting practically chain
gearing.
1000
Dated this. 16th day of my 100
WALTER BRIERLEY,
Central Chambers, Halifax, Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in the Process of and Appliances Employed in the
Manufacture of Hackling and other Machine Sheets.
I, JAMES BARBOUR of Falls Foundry, Belfast, in the County of Antrim Machine
Maker, 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 :-
This invention relates to the "sheets" of hackling machines, and of other machines,
in which leather sheets with holes punched therein, spaced to gear with correspond-
ing cogs are used, and consists of an improved manufacture of such sheets, by
employment of the processes, and appliances hereinafter set forth.
The sheets referred to are constructed of leather, and are provided with eyes
pitched to gear. with projections on the driving pulleys, or with teeth or dogs, which
are so spaced on the inner, or driven surface of the sheet, as to coincide, and gear with
spaces, or recesses formed in the circumference of the driving pulleys over which the
sheet passes, thereby to ensure a positive" motion, or driving of the sheets by the
pulleys.
"
By reason however, not only of the stretching of the sheet as a whole, but of the
inequalities of stretching of portions of one, and the same sheet, arising through
variation in the nature of the several parts of which the whole sheet is composed, the
desired correspondence, between the eyes. teeth, or dogs, and the projections, or
recesses, has heretofore been imperfectly obtainable in practice, and such defect is
detrimental to the full effective working of the machine.
The object of this my said invention is to obviate the stretching of the sheets by
previously soaking, and steeping the hide, or leather, from which the sheet is to be
made, in water until quite soft, and pliable, when clips, or clamps are secured to each
end, and the hide, or leather strip is suspended with weights at its lower end, which
stretch the said hide, or strip, and, when dry, the latter is ready to be formed into, a
sheet, or part of one as desired.
Such being the nature, and object of my said invention the following is a
complete description of same, reference being made to the accompanying drawings
in which :-
Fig. 1. is a front elevation of a strip of hide, or leather in a wet, and pliable
condition, and undergoing the stretching operation, by being suspended, and weighted
at its lower end.
Fig. 2. is a similar view to Fig. 1. but shewing the strip of hide, or leather when
stretched, and dried.
Fig. 3. is an end view of stretching appliances, drawn to enlarged scale, as
compared with Figs. 1. and 2.
Fig. 4. is a front elevation of Fig. 3.
Fig. 5. is an end sectional elevation of one of the clamping bars about full size.
According to this my invention after having selected the most suitable part of the
hide or hides, I cut therefrom strips 1, in number, and width sufficient to make two,
or three portions of a sheet, and the several strips 1, are steeped in water, until soft,
and pliable, whereupon screw clamping bars 2. 2. having their inner surfaces grooved,
or corrugated as at 3, so as to ensure a firm grip without injury to the leather, are
secured, by the nuts and bolts 4. 4. and the clips, or clamps 5. 5. to the opposite ends of
each strip 1, and the clamping bars 2. 2. and strip 1. are suspended, weights 6. 6. being
applied to hooks 7. 7. attached to the lower, or bottom clamping bars 2. 2 and
suspending ropes 8. 8. are passed through hooks 9. 9. applied to the upper, or top
clamping bars 2. 2. so that there is perfect freedom for movement, and there is thus
put upon each, and every strip 1. a tensile strain which stretches any, and every
portion which cannot resist the strain without elongation, because the manner in
which the strips 1 are suspended, and the clamping bars 2. 2. to which the weights 6. 6.

page_text: are hung, permit the strip 1 to stretch, according to its nature, even if the stretch, or
giving" be not equal throughout the length and width of the strip 1.
"
The strips 1. are weighted, and hung as described, until dry, when they are taken
down, and squared, or cut to the required size for the sheet, or part of same, and the
pitch, or distance apart of the eyes, or holes, for the teeth, or dogs, are marked, and
punched, or the teeth, or dogs, are secured to the sheets, whilst the latter are under
conditions, practically the same as on the machine, when in the ordinary working
condition and the sheet has through the processes of its manufacture, become set, and
fixed as to elongation, and hereby ensures correct gearing between the eyes, teeth, or
dogs, and the projections, or recesses of the pulleys, the two constituting practically
chain gearing.
The nuts and bolts 4. 4 and clips or clamps 5. 5 serve to lightly grip, and equalize
the pressure on the end of the strip 1 without damaging the same.
The improved process of manufacture and appliances employed therein and
therefor and as herein described is equally applicable and advantageous for use in the
manufacture of high class driving belts wherein resistance to elongation is specially
desirable.
Having now particularly described and ascertained the nature, and object of my
said invention, and in what manner the same is to be employed, I declare that
what I claim is :-
The improved process of manufacture combined with the appliances employed
therein and therefor and as berein fully set forth and illustrated by drawings
annexed.
Dated this 1st day of April 1890.
JAMES BARBOUR.
By his Agent, Walter Brierley,
Central Chambers, Halifax.
JAMES BARBOUR.
By his Agent, Walter Brierley,
Central Chambers, Halifax.

page_text: are hung, permit the strip 1 to stretch, according to its nature, even if the stretch, or
giving" be not equal throughout the length and width of the strip 1.
CC
The strips 1. are weighted, and hang as described, until dry, when they are taken
down, and squared, or cut to the required size for the sheet, or part of saine, and the
pitch, or distance apart of the eyes, or holes, for the teeth, or dogs, are marked, and
punched, or the teeth, or dogs, are secured to the sheets, whilst the latter are under
conditions, practically the same as on the machine, when in the ordinary working
condition and the sheet has through the processes of its manufacture, become set, and
fixed as to elongation, and hereby ensures correct gearing between the eyes, teeth, or
dogs, and the projections, or recesses of the pulleys, the two constituting practically
chain gearing.
The nuts and bolts 4. 4 and clips or clamps 5. 5 Serve to lightly grip, and equalize
the pressure on the end of the strip 1 without damaging the same.
The improved process of manufacture and appliances employed therein and
therefor and as herein described is equally applicable and advantageous for use in the
manufacture of high class driving belts wherein resistance to elongation is specially
desirable.
Having now particularly described and ascertained the nature, and object of my
said invention, and in what manner the same is to be employed, I declare that
what I claim is :-
The improved process of manufacture combined with the appliances employed
therein and therefor and as herein fully set forth and illustrated by drawings
annexed.
Dated this 1st day of April 1890.
JAMES BARBOUR.
By his Agent, Walter Brierley,
Central Chambers, Halifax.