Improvements in Tappets Employed in Looms for Weaving.
Year: 1886

page_text: Date of Application, 31st May, 1886.
Complete. Left, 26th Feb., 1887.
Complete Accepted, 29th Mar., 1887.
Improvements in Tappets Employed in Looms for Weaving.
We MARK LEACH, Machine Broker, Sunbridge Road, JOHN HEATON, Mechanic,
87 Whetley Lane, and JOHN BENTLEY, Overlooker, of 50 Carlisle Terrace, all of
Bradford in the County of York, do hereby declare the nature of our said invention
for IMPROVEMENTS IN TAPPETS EMPLOYED IN LOOMS FOR WEAVING to be as
follows:-
"
"2
This invention relates to novel and useful improvements in that class of tappets
employed in looms for weaving, known as cam or enclosed" tappets; and the
object of the said invention is to provide a more suitable and secure connection
between such tappets and the means of driving the same.
Such tappets are commonly fixed on the tappet shaft by means of set screws and
then bolted together. Our improvements consist in casting or fixing a drum or large
boss on the face of the wheel used for driving the said tappet shaft, and fixing the
tappets on the periphery of such drum. A. keyway, or keyways, is, or are, formed in
the periphery of the said drum, and a corresponding key, or keys, is, or are, fitted in
the tappets to retain such tappets in their relative positions on the said drum.
Dat this 90th day of May 1886

page_text: We, MARK LEACH, Machine Broker, of Sunbridge Road, JOHN HEATON, Mechanic,
of 87, Whetley Lane, and JOHN BENTLEY, Overlooker, of 50, Carlisle Terrace, all of
Bradford in the County of York, 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 :-
This invention relates to novel and useful improvements in that class of tappets,
employed in looms for weaving, known as "cam," or enclosed tappets; and the object
of the said invention is to provide a more suitable and secure connection between such
tappets and the means of driving the same.
The said tappets are commonly fixed on the tappet shaft by means of set-screws and
then bolted together. Our improvements consist in casting or fixing a drum or large
boss on the face of the wheel used for driving the said tappet shaft, and fixing the
tappots on the periphery of such drum. A keyway, or keyways, is, or are formed in
the periphery of the said drum, and a corresponding key, or keys, is, or are fitted
in, or cast with such tappets to retain them in their relative positions on the said
drum.
Reference is to be had to the accompanying drawing forming a part of this
specification in which similar letters of reference indicate corresponding parts in all
the figures.
Figure 1, is a side elevation of a set of tappets constructed and mounted in
accordance with our invention. Figure 2, is a plan of the same.
Figure 3, is a section, through the line 1, 2, in the first Figure, of the tappet
driving wheel and drum cast therewith. Figure 4, is an elevation of the same.
Figure 5, is an elevation of one of the tappets.
The drum A, is cast on the face of the driving wheel B. The tappets C, are
mounted on the said drum and are provided with four keys D, adapted to engage with
the keyways E, cut in the periphery of the drum; thereby rigidly connecting the
tappets to their driving wheel and fixing them truly in their relative positions. The
wheel and drum are mounted by the hole F, upon the tappet shaft.
It is obvious that the tappets may be bolted together as heretofore to prevent them
moving longitudinally on the drum.
Having now particularly described and ascertained the nature of our said Invention,
and in what manner the same is to be performed we declare what we claim is:
In a loom for weaving, the combination with the tappet driving wheel, of a drum
or boss cast or fixed to the face of said wheel and adapted to hold the tappets, substan-
tially as herein shown and described.
Dated this 94th day of February 1887
DRACUP & NOWELL,
Bradford, Agents.