An Improved Shuttle Relief Motion for Looms for Weaving.
Year: 1896

page_text: Date of Application, 6th Aug., 1896
Complete Specification Left, 29tn Apr., 1897-Accepted, 29th May, 1897
PROVISIONAL SPECIFICATION.
An Improved Shuttle Relief Motion for Looms for Weaving.
We, JouN HALSTEAD, SAMUEL HALSTEAD and FRED HALSTEAD, all of
Throstle Nest Mills, Nelson, in the County of Lancaster, Cotton Manufacturers,
do hereby declare the nature of this invention to be as follows:-
This invention relates to the picking mechanism of looms for weaving and is:
designed with the object of obtaining a light pick and thereby reducing wear and
tear by considerably reducing the stresses and strains to which the picking parts:
of the loom are subject through heavy picking. It is also productive of a
more even running of the loom and at an increased speed with less expenditure
of power.
It consists essentially of a bracket attached to the slay-sword provided with.
a pulley or grooved runner over which a band or cord passes, one end being secured.
to the ordinary spiral spring attached to the tongue or stop rod and the other to
the crank arm of the loom.
In carrying out the invention we attach by bolts or other means a.bracket of
any suitable construction about the centre or mid-way of the slay sword. This!
bracket is provided for the purpose of reducing friction with a pulley or grooved.
runner which acts as a guide for a preferably leather band or strap one extremity
of which is secured to the ordinary spiral spring attached to the tongue or stop
rod of the loom, the other extremity of the band passing through a hole or slot in
the slay-sword and being connected in any suitable manner to the crank arm of
the loom.
The essential feature of the invention is to relieve the pick of a fast reed looni
by the motion of the crank arm which is connected by the strap or cord to the
spring which draws the tongue or stop lever into contact with the frog. When
the crank arm is at the top of its stroke the strap or cord is pulled tight and
pressure then brought upon the tongue. When the crank arm descends the
pressure on the strap or cord is relieved and the pressure on the swell in the
shuttle box is relieved at the same time. The shuttle box is thus relieved of
pressure when delivering at one side and accepting or receiving shuttle at the other.
During the operation of picking there is only sufficient pressure on swell provided:
by flat spring at back to prevent rattling and to prevent the shuttle. from.
rebounding.
Dated this 5th day of August 1896
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents..
COMPLETE SPECIFICATION...
An Improved Shuttle Relief Motion for Looms for Weaving.
We, JOHN HALSTEAD, SAMUEL HALSTEAD, and FRED HALSTEAD, all of
Throstle Nest Mills, Nelson, in the County of Lancaster, Cotton Manufacturers,..
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 the picking mechanism of loons for weaving and is.

page_text: designed with the object of obtaining a light pick and thereby reducing wear and
tear by considerably reducing the stresses and strains to which the picking parts
of the loom are subject through heavy picking. It is also productive of a
more even running of the loom and at an increased speed with less expenditure
of power.
It consists essentially of a bracket attached to the slay sword provided with
a pulley or grooved runner under which a band or cord passes, one end being
secured to the ordinary spiral spring attached to the tongue or stop rod and the
other to the crank arm of the loom.
It will be fully described with reference to the accompanying drawings in which
the slay sword is illustrated with the invention attached thereto.
Fig. 1. shows it in position with the invention in action.
Fig. 2. shows it in position with the spring relaxed.
The slay sword A the crank B and the crank arm C are of any ordinary or
suitable construction.
To the slay sword A at or near the centre we attach by bolts or otherwise
a bracket D with a pulley or grooved runner d. Round the pulley d we pass
a leather band strap or cord E one end or extremity of which is secured to the
ordinary spiral spring F attached to the tongue G or stop rod of the loom the
band, is passed through a hole or slot in the slay sword and the other extremity
is connected in any suitable manner to the crank arm C of the loom. The
connection is preferably made by means of a leather strap H secured to the bolt of
the crank arm.
The essential feature of the invention is connecting the spring which draws the.
finger or tongue G into contact with the frog to the crank arm whereby the
motion of the crank arın relieves the pick. When the crank arm is at the top of
its stroke the strap or cord is pulled tight and pressure then brought upon the
tongue. When the crank arm descends the pressure on the strap or cord is
relieved and the pressure on the swell in the shuttle box is relieved at the same
time. The shuttle box is thus relieved of pressure when delivering at one side and
accepting or receiving shuttle at the other. During the operation of picking there
is only sufficient pressure on swell provided by flat spring at back to prevent
rattling and to prevent the shuttle from rebounding.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that what
we claim is :--
1. A shuttle relief motion for looms substantially as described and shown.
2. In a loom for weaving the combination with the slay sword tongue and crank
arm and of a pulley attached to the slay sword and a strap passing round the same
one end being connected to the tongue spring and the other to the crank arm
substantially as and for the purpose described.
Dated this 22nd day of April 1897
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents..