Improvements in Worms or Screws and Troughs for Conveyors.
Year: 1894

page_text: PROVISIONAL SPECIFICATION.
Improvements in Worms or Screws and Troughs for Conveyors.
I, TOM TAYLOR, of No. 31 Royal Exchange, in the City of Manchester,
Engineer, do hereby declare the nature of this invention to be as follows:-
In mechanically conveying chemicals, acids, acidulous substances, and the like,
the ordinary worms and troughs and other metal portions of the conveyor
employed, such, for example, as those described in the Specifications of Letters
Patent Numbers 15,033 of 1889 and 5,854 of 1891, are quickly eaten into and
destroyed by the said substances.
My invention has for its object to render such worms and troughs and other
metal portions of the conveyor and conveyor box impervious to the action of such
substances.
To effect my object I cover the worms or screws of the said conveyor and the
inside surfaces of such conveyor boxes or troughs and any other required portions
thereof with a suitable enamel or its equivalent.
Dated this 24th day of September 1894.
A. F. SPOONER,
124, Chancery Lane, W.C., Agent for the Applicant.
1, TOM TAYLOR, of No. 31 Royal Exchange, in the City of Manchester,
Engineer, 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 :-
In mechanically conveying chemicals, acids, acidulous substances, and the like,
the ordinary worms and troughs and other metal portions of the conveyor
employed, such, for example, as those described in the Specifications of Letters
Patent Nos. 15,033 of 1889 and 5,854 of 1891, are quickly eaten into and destroyed
by the said substances, and there are other instances in which contact between
the said metal portions and the substances being conveyed is deleterious to one or
the other.
My invention has for its object to render such worms and troughs and other
metal portions of the conveyor and conveyor box impervious to the action of such
substances and to avoid direct contact between the metal parts and the substances
in course of conveyance.
The accompanying drawings illustrate one form of my invention,
Figure being a longitudinal view of a portion of a conveyor with the trough
partly broken away, and Figure 2 a transverse section thereof, but it will be
obvious that my invention may advantageously be employed with any other form
of conveyor apparatus.
In the drawings A is the conveyor box or trough which may be of the shape
shown, and with or without a lid, or of tubular or other section. B is the worm or

page_text: screw suitably journalled within the trough and rotatable therein through the
intervention of any usual or suitable means.
To effect my said object I cover the conveyor box or trough A with a suitable
non-metallic lining or enamel C and I similarly enamel or cover the surface of the
worm or screw B, as also indicated at C, and likewise any other metal surfaces of
the conveyor.
The enamelling of the said parts may be effected in any of the well-known or
suitable ways.
It will thus be seen that the conveyor will resist the action of chemicals and the
like and, besides, that it may be used for other substances which cannot now be
advantageously conveyed ordinary metallic conveyors. Moreover, a great
advantage resulting from the use of my invention is that the apparatus may be
swilled or washed down which is not practicable with ordinary metallic conveyors.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
Lining or enamelling the conveyor box or trough, the worm or screw, and other
metal parts of a conveyor, substantially as and for the purposes set forth.
Dated this 24th day of June 1895.
A. F. SPOONER,
124 Chancery Lane, London, W.C., Agent for the Applicant.