Year: 1886

page_text: Date of Application, 4th Mar., 1885.
Complete Left, 4th Jan., 1887.
Complete Accepted, 4th Feb., 1887.
I, Tom Fox of 182 Milnrow Road, Rochdale in the county of Lancaster, Packing
Manufacturer do hereby declare the nature of this invention to be as follows :—
This invention has for its object a steam packing that will embrace all the advantages
of a metallic, carbon, asbestos packing without the disadvantages of any of them.
It consists in forming a core of asbestos or other fibre and plaiting over if one or more
sets of wires, in a plaiting or braiding machine, then coating it by plaiting with more
asbestos or other fibre and again plaiting wire over that, and continuing this process as
often as required, until the packing is large enough, generally two to three plaitings of
wire will be enough, but sometimes I plait two sets of wires, one over the other. All
the layers of fibre are preferably carbonated with a similar mixture to that which is
used for metalline bearings, namely, with the material which is known in Commerce as
carbon for bearings."
The wire varies in composition according to the use to which it is put, for very
quick engines it being made harder than for slow ones. It is composed therefore of
various quantities of lead, aluminium, nickel, tin, antimony, copper and zine, or of two
or three of these as required.
In some cases in place of plaiting the wire I form it in rings round the asbestos, or
wind it on, but very much prefer the plaiting.
WM. P. THOMPSON & Co.,
G, Lord Street, Liverpool,
Agents for the Applicant,

page_text: COMPLETE SPECIFICATION.
Improvements in or Appertaining to Paokings for Steam Engines.
i
I, Tom Fox of 182 Milnrow Road Rochdale in the County of Lancaster Packing
Manufacturer do hereby declare the nature of this invention and in what manner thi
same is to be performed, to be particularly described and ascertained in and by the
following statement:-
This invention has for its object a steam packing that will embrace all the advan-
tages of a metallic, carbon, asbestos packing without the disadvantages of any of them.
It consists 1st in forming a core of asbestos or other fibre, and plaiting over
it one or more sets of wires in a plaiting or braiding machine, then coating it
by plaiting with more asbestos or other fibre and again plaiting wire over that,
and continuing this process as often as required, until the packing is large
enough, generally two to three plaitings of wire will be enough, but sometimes
I plait two sets of wires, one over the other. All the layers of fibre are preferably
carbonated or thoroughly permeated with a similar mixture to that which is used for
metallic bearings, namely, with the material which is known in commerce as "Carbon for
bearings, and which resembles soft plastic graphite in appearance, and is probably
formed of prepared graphite or powdered antifriction metal, or both, and oil. The
manufacture of this carbon for bearings is no part of my invention, I buy it like other
makers of steam packings do from the manufacturers or dealers, and without knowing
its method of preparation or manufacture, which I believe to be a trade secret.
2nd. The wire varies in composition according to the use to which it is put, for very
quick engines, it being made harder than for slow.ones. It is composed therefore of
various quantities of lead, aluminium, nickel, tin, antimony, copper and zine, or of
two or three of these as required. For ordinary steam packing 1 have found the
following a good alloy

page_text: Having now 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 is :-
1st. The Steam packing for engines, consisting of a core of asbestos or other fibre
braided over with wire, substantially as described, and with or without other concentric
layers of fibre and wire alternately.
2nd. The process of manufacturing steam packing which consists in impregnating
an asbestos or other fibrous core with a plastic antifriction material such as described,
covering the same with a series of wires wound spirally in opposite directions, plaited,
braided or in rings, so as to completely surround and enclose the asbestos, substantially
as described.
3rd. In combination with an asbestos or other fibrous packing, a network of wire
surrounding the same and formed of an antifriction alloy, substantially as described.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
Patent Agents for the Applicant.