Improved Composition applicable as a Dressing for Belting and other purposes.
Year: 1891

page_text: Date of Application, 17th Oct., 1891
Complete Specification Left, 12th July, 1892-Accepted, 15th Oct., 1892
PROVISIONAL SPECIFICATION.
Improved Composition applicable as a Dressing for Belting and
other purposes.
1 SEPTIMUS KENYON of Warrington in the County of Lancaster Oil and
Varnish Manufacturer do hereby declare the nature of the said invention to be
as follows:-
The object of this invention is primarily to produce a dressing for cotton canvas
or other belting which will have the effect of preserving and rendering the belting
supple and also of increasing its adhesion to or grip upon the pulleys over which
it passes. The composition or dressing may however be applied to other articles
for the purpose of preserving them or for other purposes.
It consists essentially of a composition formed of a mixture of Stockholm-tar,
Archangel-tar, or other vegetable tar or petroleum residuum or the like with
india rubber.
In carrying out the invention I take a vegetable tar such as Stockholm tar or
Archangel tar produced in the destructive distillation of wood or petroleum
residuum produced in the refining of petroleum oils, or other similar material.
This material is heated to a considerable degree and to it is added preferably
refuse india rubber in a fine state of subdivision. The heat is maintained for a
considerable time until the india-rubber is mixed with and dissolved in the other
material.
I at present prefer to use the Stockholm tar for the purpose of the composition
but either of the other materials may be used as a substitute therefor or in con-
junction therewith or there may be used any thick or thickened mineral oil.
I am thus enabled to produce a composition well adapted for dressing belting
which will give a good grip upon the pulleys.
Dated this 16th day of October 1891.
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
Improved Composition applicable as a Dressing for Belting and
other purposes.
1, SEPTIMUS KENYON, of Warrington, in the County of Lancaster, Oil and
Varnish Manufacturer, 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:-
The object of this invention is primarily to produce a dressing for machine
belting of cotton canvas, leather or other material which will have the effect of
preserving the belting and rendering it more supple and also of increasing its
adhesion to or grip upon the pulleys over which it passes. The composition may
however be applied to other articles such as harness, boots and shoes or the like
for the purpose of preserving or dressing them.
It consists essentially of a composition formed of a mixture of a vegetable tar or
petroleum residue, pitch, or other thick substance of a similar nature, with rubber
or gutta percha.
In carrying out the invention I prefer to use a vegetable tar such as Archangel
or Stockholm tar produced in the destructive distillation of wood.
This tar I place in a pan in which it is capable of being heated to a considerable

page_text: degree say from 200° to 300° F. When raised to that temperature I then add a
quantity of rubber or gutta percha or both ground, or in a state of fine subdivision
and keep the whole mass up to the above temperature until the rubber or gutta
percha is completely dissolved therein.
To the tar I may also add varnish distillate or varnish foots or other thick
solvent of a similar nature. The rubber and gutta percha may either be new or
raw or may have been previously used.
The quantities of the several ingredients will altogether depend upon the con-
sistency required in the finished article but I find a good serviceable composition
can be made by using equal weights of the tar distillate heated together with a
similar weight of rubber or gutta-percha.
The length of time necessary to continue the operation will largely depend upon
the quantities under treatment but where several hundredweight are under
operation at one time the process may be continued for from 24 to 48 hours.
Although I at present prefer to use Stockholm or Archangel tar with or without.
the varnish distillate there may be substituted therefor other thick material of a
similar nature in which the rubber or gutta percha can be dissolved or mixed as
hereinbefore described such as the residue from the distillation of petroleum or
other hydrocarbon oils; thick heavy hydrocarbon oils; resin or pine oils; castor
oil and pitches of various sorts.
The rubber or gutta percha may be dissolved in either of these materials mixed
with the vegetable tar or used separately or in any two or more of them mixed
together, or one or more of them may be added to the composition after the rubber
or gutta percha is in solution.
A composition so prepared is well adapted for dressing machine belting to
preserve it and to give a good grip upon the pulleys.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
A composition applicable for dressing machine belting and other purposes con-
sisting of a mixture of rubber or gutta percha with a vegetable tar or other thick
solvent of a similar nature produced substantially as described.
Dated this 11th day of July 1892.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.