IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1883

page_text: LETTERS PATENT to William Houghton of Gomersal in the County of York,
Edwin Knowles of Gomersal in the County of York, and Hervey Bradbury of
Leeds in the County of York for an Invention of "IMPROVEMENTS IN LOOMS
FOR WEAVING"
PROVISIONAL SPECIFICATION left by the said William Houghton, Edwin
Knowles and Hervey Bradbury at the Office of the Commissioners of Patents
-on the 31st July 1883.
WILLIAM HOUGHTON of Gomersal in the County of York EDWIN KNOWLES of
Gomersal in the County of York and HERVEY BRADBURY of Leeds in the County
of York "IMPROVEMENTS IN LOOMS FOR WEAVING"
This Invention relates to the Jacks for operating the healds, whereby a positive
motion is imparted to each Jack required for operating the healds, at the same time
locking the remaining Jacks and healds, thus forming an even and clear shed and
shuttle race allowing more time for the shuttle to pass through the race.
The Apparatus according to our Invention is as follows. On the front top rail
we fix a bracket, having a projecting slotted arm, on the back top rail we fix a
similar bracket, these brackets carry a grooved shaft on which the radial Jacks are
mounted. At one end of the grooved shaft is fixed a slotted lover for imparting
partial radial or to an fro Motion to the said shaft by means of connecting rod
attached thereto, the other end of which receives its Motion from the crank shaft,
within each Jack is fitted a L shaped needle having spiral spring thereon tho
L cranked end of which is acted upon by peg, lag, or other card Mechanism and
the point of each needle when, acted upon by the peg, is forced into the groove of
the grooved shaft thus forming a key for the Jack causing the latter to partially
rotate with the grooved shaft.
On the projecting arm of the top rail bracket is a holding and stop plate under
which the cranked or head ends of the L needles are received in their radial
motion and are held securely in position, the edge of the plate forming a stop for
the extended arm of the Jacks

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Houghton, Edwin Knowles and Hervey Bradbury in the
Patent Office on the 30th January 1884.
WILLIAM HOUGHTON of Gomersal in the County of York, EDWIN KNOWLES of
Gomersal in the County of York, and HERVEY BRADBURY of Leeds in the County
of York. "IMPROVEMENTS IN LOOMS FOR WEAVING "
"J
This Invention relates to the Jacks for operating the healds, whereby a positive
motion is imparted to each Jack required for operating the healds, at the same
time locking the remaining Jacks and healds, thus forming an even and clear shed
and shuttle race-allowing more time for the shuttle to pass through the race
The apparatus according to our Invention is as follows. On the front top rail
we fix a bracket having a projecting slotted arm on the back top rail we fix a
similar bracket, these brackets carry a grooved shaft on which the radial Jacks are
mounted. At one end of the grooved shaft is fixed a slotted lever for imparting
partial radial or to and fro motion to the said shaft-by means of connecting rod
attached thereto, the other end of which receives its motion from the crank shaft,
within each Jack is fitted a L shaped needle having spiral spring thereon, tho
L cranked end of which is acted upon by peg, lag, or other card mechanism, and
the point of cach needle when acted upon by the peg, is force into the groove of
the grooved shaft or into boss thus forming a key for the Juck causing the latter
to partially rotate with the grooved shaft
On the projecting arm of the top rail bracket is a holding and stop plate under
which the cranked or head ends of the L needles are received in their radial motion,
and are held securely in-position, the edge of the plate forming a stop for the
extended arm of the Jacks
Such being the nature and object of this our said invention we will now describe
the same in detail and in order that the invention may be fully understood we have
hereunto annexed 4 sheets of drawings
--

page_text: be well understood-At Figs. 5. 6 and 7 in lieu of the ends of the neodles 5
projecting into the groove of the shaft 3 we fix on the said shaft two projecting
arms 12. 13 between which we place the knife or draw bar 14 for giving motion to
the jacks when the needles 5 have indicated by the peg mechanism the blade
spring G being in the sneck of the upper end 7 of the needles 5 acts as an elastic
impact surface for the action of the pegs, the said spring also acts for raising the
needles 5 to the back 11 of the guido plate 9 when the needles are returned-the
end 11 of the guide plate 9 forms a stop and locking piece for the end 7 of the
needles 5 when in the position shewn at Fig. 7 the arm 10 is connected with
the upper heald staves and the arm 11 to the intermediate levers and thence to
the lower heald staves as ordinary
Having thus fully described the nature and particulars of this our said invention
together with the manner in which the same is to be or may be carried into
practical effect we would have it understood that what we claim as our
invention is
Firstly-The construction arrangement and combination of parts constituting the
improved apparatus illustrated by Figs. 1-5-6-7 for purpose aforesaid and as
herein described
Secondly-The combination of needles 5 with the locking and holding plate such
as 9 operated and operating as herein described
In Witness whereof I the said Edwin Knowles for and on behalf of myself and
the said William Houghton and Hervey Bradbury have hereunto set my hand and
seal this twentyninth day of January in the year of our Lord one thousand eight
hundred and eighty four.
Vitness
WALTER BRIERLEY
Patent Agent
Halifax & Huddersfield & Blackburn
EDWIN KNOWLES (LS)