A Composition or Cement for Making Pipe and other Joints.
Year: 1896

page_text: Date of Application, 8th Dec., 1896
PROVISIONAL SPECIFICATION.
A Composition or Cement for Making Pipe and other Joints.
I, SAMUEL RICHARDSON THOMPSON of 75 Ash Grove, Wavertree, Liverpool,
Manufacturer, do hereby declare the nature of my said invention to be as
follows:-
My invention has for its object to produce a composition or cement for making
joints, and of a nature which allows it to expand or contract with the expansion
or contraction of the parts joined together, and possessing the advantage of being
readily removed in case the joint requires to be broken for repairs or renewal of
the parts.
In accordance with my invention, and in the proportion for making, say 1 ton
of composition (which is more or less the same for smaller or larger quantities),
I take 12 cwt. of powdered Paris White (Carbonate of Calcium), 5 cwt. of Oxide
of Iron (Red Ochre), 2 ewt. of Powdered brick-dust (Venetian Red) and cwt..
of powdered Plumbago or Graphite.
I then triturate or reduce each of such ingredients to a powder, and in such
state I then mix or blend them, and subject them to a fine sieving operation in
suitable apparatus.
When properly sieved and mixed and when required for making a joint I
work the mixture up with boiled Linseed Oil to the consistency of a stiff putty,
and in such condition the preparation is ready for use.
The peculiar properties of the Cement are, 1st, The Paris White (for which:
Chalk or Whiting may be substituted) furnishes the required tenacity; the iron
ore, when intimately mixed, gives the contracting and expanding property when
exposed to changes from heat to cold or vice versa, and which is very necessary.to
prevent the joint cracking; the powdered brick-dust binds all the ingredients
together, and the Plumbago prevents the cement adhering to the surfaces of the
metals upon which joint is used.
In this way the cement is extremely efficacious for joint making, allows for"
expansion and contraction, and can be readily removed and renewed.
The proportions of the ingredients may be slightly varied, but those given
above have been found to suit. A small quantity of any mineral color might be
used for changing the hue as desired without materially affecting the efficiency
of the cement.
Dated this 7th day of December 1896.
SAMUEL RICHARDSON THOMPSON.
By John G. Wilson & Co.,
Agents.

page_text: A Composition or Cement for Making Pipe and other Joints:
:
I, SAMUEL RICHARDSON THOMPSON of 75 Ash Grove Wavertree Liverpool
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:-
My invention has for its object to produce a composition or cement for making
joints, of a nature which allows it to expand or contract with the expansion
or contraction of the parts joined together, and possessing the advantage of being
readily removed in case the joint requires to be broken for repairs or renewal of
the parts.
In accordance with my invention, and in the proportion for making, say 1 ton
of composition (which is more or less the same for smaller or larger quantities),
I take 12 cwt. of powdered Paris White (Carbonate of Calcium), 5 cwt. of Oxide
of Iron (Red Ochre), 2 cwt. of Powdered Brick-dust (Venetian Red) and cwt.
of powdered Plumbago or Graphite.
I then triturate or reduce each of such ingredients to a powder, and in such
state I then mix or blend them, and subject them to a fine sieving operation in
suitable apparatus.
When properly sieved and mixed and when required for making a joint I
work the mixture up with boiled Linseed Oil to the consistency of a stiff putty,
and in such condition the preparation is ready for use.
The peculiar properties of the Cement are 1st, the Paris White (for which
Chalk or Whiting may be substituted) furnishes the required tenacity; the iron
ore. when intimately mixed, gives the contracting and expanding property when
exposed to changes from heat to cold, or vice versa, (which is very necessary to
prevent the joint cracking); the powdered brick-dust binds all the ingredients
together, and the. Plumbago allows the cement to be readily removed from the
surfaces of the metals when it is desired to break the joint.
In this way the cement is extremely efficacious for joint making, allows for
expansion and contraction, and can be readily removed and renewed.
The proportions of the ingredients may be slightly varied, but those given
above have been found to suit. A small quantity of any mineral color might be
used for changing the hue as desired without materially affecting the efficiency
of the cement. A further improvement of the cement would be the addition of
a little powdered asbestos or shreded hemp.
Having thus particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim and desire to secure by Letters Patent is:-
1. The hereinbefore described ingredients, mixed, blended and treated in the
manner aforesaid, in or about the proportions set forth, for producing my improved
cement.
2. The product (cement) of the said mixture and treatment for the purposes
set forth.
S. R. THOMPSON.
By John G. Wilson & Co.,
55 Market Street, Manchester, Agents.