IMPROVEMENTS IN THE MEANS EMPLOYED FOR WORKING THE SHUTTLES IN LOOMS FOR WEAVING
Year: 1871

page_text: PROVISIONAL SPECIFICATION left by Henry David Bottrill at the
Office of the Commissioners of Patents, with his Petition, on the
14th September 1871.
I, HENRY DAVID BOTTRILL, of No. 35, Peter's Lane, Leicester, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
THE MEANS EMPLOYED FOR WORKING THE SHUTTLES IN LOOMS FOR WEAVING,"
to be as follows:-
This Invention has for its object to improve the system of working
the shuttles backwards and forwards in looms for weaving.
Heretofore in what is known as the " peg shot" system for giving
the requisite to-and-fro traversing motion to swivel shuttles there are
two drivers. These drivers work upon axles and are taken backwards
and forwards by an iron slide. This slide takes one driver its distance
leaving the other behind. When it returns it has to strike the one left
to force it up an incline, and when it is at work there is great noise and
much wear and tear.

page_text: There have been various alterations in this " peg shot" system in
order to stop the great wear and tear in the slide grooves, and this has
been to some extent accomplished by the arrangement described in the
Specification of a Patent granted to John Thomas Cooke, on the Tenth
day of May 1862 (No. 1406); but the great evil of this system is that
one tier of shuttles only can be driven from below the warps, whilst for
a double shuttle another pair of drivers have to be placed above the
warps, and the reason of this is that the pegs have had to traverse either
above or below the warps thus necessitating that the pegs should rise or
fall a distance necessary to clear them.
Several other arrangements for giving motion to the shuttles by pegs
actuated by one sliding bar or driver have also been introduced, but they
have all had this failing, that the pegs had always to traverse either
below or above the warps.
According to my Invention I give the requisite traversing motion to
the shuttle by two pegs, one of which traverses the shuttle for half the
required distance and then goes out of action and remains stationary,
whilst the other peg which before was at rest takes hold of the shuttle
and causes it to traverse the remainder of the distance, and these pegs
I actuate from one sliding bar or driver which is caused to traverse the
entire distance the shuttle has to be moved. For this purpose each of
studs projecting from it,
the pegs is carried by a carrier which has two
one stud enters a groove in the sliding bar or driver, and the other a
groove in a fixed bar running from side to side of the batten. The
grooves in the transverse fixed bar of the batten are horizontal, except
at their ends which are towards the reed, and these curve downwards.
The grooves in the sliding bar or driver are also straight, except at their
outer extremities which curve upwards, and the upward and downward
curves counteract each other. As the sliding bar or driver is moved to
and fro it gives motion to the peg carriers in such manner that one
peg moves the shuttle for half its traverse, and is then moved
downwards by the action of the curved extremities of the grooves, and
is freed from the shuttle and remains stationary at the side of the reed,
whilst the other peg which before was at rest on the opposite side of the
reed is simultaneously by the action of the curved grooves caused to
rise up and enter a hole in the forward nose of the shuttle and carry

page_text: the shuttle with it for the remainder of the distance the shuttle has to
be traversed. By this arrangement two shuttles one above the other
can be worked by sliding bars or drivers both below the warps, and if
more shuttles are required they can be similarly worked from bars
above the warps.