Improvements in the Manufacture of Leather Strapping or Belting.
Year: 1891

page_text: Date of Application, 2nd Mar., 1891
Complete Specification Left, 2nd Dec., 1891-Accepted, 30th Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Leather Strapping or Belting.
We JOHN THOMAS AMBLER of Brook Side Tannery Timperley in the County
of Chester Tanner and THOMAS HENRY Moss of the same place Tanner do hereby
declare the nature of our said invention to be as follows:-
The object of this invention is to so treat the leather employed as strapping or
belting in the process of its manufacture, as to considerably increase its gripping
power on the pulley to which it is applied, and so prevent any slipping or loss of
power and render the same more durable than heretofore.
In carrying out our invention instead of the dubbing hitherto employed in the
currying process, which is composed of cod-oil and tallow we now employ a dubbing
composed of sod-oil and tallow in the proportion of by preference one part tallow
to three parts sod-oil although a different consistency may be sometimes employed.
This improved dubbing is applied to the hide by means of a brush and is then
allowed to dry, when any superfluous dubbing is wiped off and the hide is laid down
to season or mellow and is then ready for use.
The improved dubbing being of a somewhat dark color tends to darken the hide,
and to render the same absolutely black the hide is previously stained with black
ink.
By these means we produce strapping or belting which will more effectually grip
the pulley to which it may be applied than heretofore and any loss of power by
slipping will be reduced to a minimum the belting of itself being much more
durable than heretofore.
This process avoids the hitherto frequent outward applications to prevent the
slipping of the belt.
Dated this 28th day of February 1891.
JOHN G. WILSON,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Leather Strapping or Belting.
We, JOHN THOMAS AMBLER of Brook Side Tannery, Timperley, in the County
of Chester, Tanner, and THOMAS HENRY MOss of the same place, Tanner, do
hereby declare the nature of our said 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 leather strapping or belting used for transmitting
motion from one shaft to another and for other similar purposes and has for its
object to so treat the leather in the process of its manufacture as to considerably
increase its gripping power on the pulley to which it is applied and so prevent any
slipping and loss of power and at the same time render the leather more durable
than heretofore.
In carrying out our invention instead of employing the dubbing hitherto used in
the currying of the leather composed of cod oil and tallow we now employ a dubbing
composed of sod oil and tallow in the proportion of, by preference, one part tallow
to three parts sod oil.
Sod oil is a product of cod oil produced in sheep skin and chamois dressing.
The skins are placed in hydraulic presses in contact with cod oil which mixes with
the natural fats of the skins, and the resulting substance is placed in large coppers
and the water separated therefrom leaving a residue which constitutes sod oil.

page_text: This improved dubbing is applied to the leather by a brush or other equivalent
means and is then allowed to dry; any superfluous dubbing being then wiped off
and the leather left to season and mellow until required for use.
This improved dubbing is of a somewhat dark colour and tends to darken the
colour of the leather and to render the same absolutely black the leather previous
to the currying process is stained with ink or other suitable substance.
The gripping power of our improved strapping or belting when applied to a pulley
is very considerable and loss of power by slipping is reduced to a minimum whilst
the durability of the leather is greatly increased.
This process avoids the hitherto frequent outward applications to prevent the
slipping of the belt.
Having thus 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.-
1st. The employment of sod oil and tallow as a dubbing in the treatment of
leather strapping or belting in the process of its manufacture substantially as
bereinbefore described.
Dated this 1st day of December 1891.
JOHN G. WILSON,
Agent for the Applicants.