Improvements in or appertaining to the "Going Part" of Looms.
Year: 1896

page_text: Date of Application, 17th Apr.. 1896
Complete Specification Left, 16th Feb., 1897-Accepted. 20th Mar., 1897
PROVISIONAL SPECIFICATION.
Improvements in or appertaining to the "Going Part" of Looms.
We, ALFRED JOHNSTONE, of Boothroyd's Hotel, Bradford, in the County of
York, Hotel Proprietor, and JAMES WILLIAM PARKER, of 29, Southey Place,
Bradford aforesaid, Engineer, do hereby declare the nature of this invention to be
as follows:-
This invention relates to improvements in or appertaining to the "going part"
of weaving looms, and its object is to reduce the weight and general wear and tear
on this part of a loom.
For this purpose we make the shuttle boxes separate from the slay or remainder
of the going part and they may be fixed stationary. In this case the slay or going
part may be made to "dwell" or be momentarily stopped whilst the "pick" is
made and the shuttle is passed from oue box to the other. Iustead of making the
going part dwell whilst the pick is made the shuttle boxes may have a compara-
tively short backwards and forwards movement imparted to them whilst the pick
is being made. This backward movement of the shuttle boxes may be com-
municated to them from the going part and they may be moved forward by a
spring or springs.
The dwell in the movement of the going part may be effected by bringing the
going part to rest against suitable stops or buffers and by making the crank arms
or their equivalent capable of a certain amount of elongation or otherwise arranging
them to allow of the continued motion of the cranks.
Owing to the stationary position or comparatively slight movement of the shuttle
boxes the picking mechanism may be very much simplified.
The "stop rod" mechanism is modified to adapt it to the above described
construction.
Cams may be used to operate the going part instead of cranks.
DRACUP & NOWELL,
Bradford, Patent Agents.
Improvements in or appertaining to the "Going Part" of Looms.
We, ALFRED JOHNSTONE, of Boothroyd's Hotel, Bradford, in the County of
York, Hotel Proprietor, and JAMES WILLIAM PARKER, of 29, Southey Place,
Bradford, aforesaid, 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:-
This invention relates to improvements in or appertaining to the "going part" of

page_text: ing looms, and its object is to reduce the weight and general wear and tear
on this part of the loom.
For this purpose we make the shuttle boxes separate from the slay or remainder
of the going part and fix them stationary. In this case the slay or going part may
be made to "dwell" or be momentarily stopped whilst the "pick" is made and
the shuttle is passed from one box to the other.
The dwell in the movement of the going part may be effected by bringing the
going part to rest against suitable stops or buffers and by making the crank arms
or their equivalent capable of a certain amount of elongation or otherwise arranging
them to allow of the continned motion of the cranks.
Cams may be used to operate the going part instead of cranks.
To fully describe our invention reference is made to the accompanying sheet of
drawings forming a part of this specification, in which similar letters of reference
indicate corresponding parts in each of the figures.
Figure 1, represents an end view of such parts of a loom as are necessary to
illustrate the application of our improvements.
Figure 2, represents a front view of the loom with the middle portion broken
away and Figure 3, is a plan view of the same.
Figure 4, represents a portion of a loom in cross section illustrating a modification
and Figure 5, is a plan view of the same.
The shuttle boxes A may be of ordinary construction excepting that they are
disconnected from the going part B and rigidly fixed to the side frames C. The
going part B is as usual mounted upon swords D pivoted or journalled in the usual
manner in brackets E fixed to the side frames. Box cams F keyed on the shaft G
are used instead of cranks in order that the going part may be momentarily brought
to rest in line with the two shuttle boxes whilst the pick is made. The connecting
rods H are connected like the ordinary "crank arms" to the swords D and the
opposite ends H2 are forked and the forked ends embrace the shaft G. Anti-
friction rollers J are mounted on studs H 3 fixed in the rods H and these anti-
friction rollers lie in cam races F2 of the cams consequently when the cams are
rctated the going part is vibrated in the usual manner. The going part is shown
in its most forward position in Figures 1, 2 and 3 and when it is brought back in
line with the shuttle boxes the "dwell" of the cam that is to say the part of the
cam made concentric with the shaft G and which is shown to the rear in Figure 1
engages the anti-friction roller.
To enable the shuttle boxes to be adjusted in line with the going part when in
this position they are provided with a rod K along the bottom rigidly fixed to
them in any convenient manner. The rods K are adjustably fixed in the
pieces L rigidly fixed in the piece M but capable of horizontal adjustment therein
and the vertically adjustable pieces M are fixed in the bracket N secured to the
side frames.
In Figures 4 and 5 the ordinary crank shalt G2 is used instead of the cams F.
The cranks G3 of the shaft G 2 are connected by crank arms G 4 to the
swords D, but these crank arms are capable of being elongated. For this purpose
the end G5 is made to slide telescopically into G 4 and a strong spiral spring S is
placed round the latter. This spring is compressed between the shoulder G 6
on G 4 and a pin G 7 fixed in G 5 and projecting through the slots G8 in each
side of G 4.
A rigid stop P is fixed to each side frame for the going part to abut against
when it is brought into line with the shuttle boxes and it remains in that position
until the continued movement of the cranks again move it forward. The elongation
of the crank arms takes place whilst the going part is against the stop P as shown
in the drawings.
A piece of india-rubber O or other suitable buffer is preferably secured on the
back of the going part opposite each stop P.
The improvements may be applied to drop box and circular box loons as well as
plain looms.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:
1. A weaving loom, having the shuttle boxes disconnected from or independent
of the going part, substantially as herein shown and described and for the purpose
specified.
2. In a weaving loom, the combination with the cams F of the connecting
rods H and the anti-friction rollers J or their equivalent, for the purpose
specified.
3. In a weaving loom, the combination with the stops P of the crank arms G 4,-
for the purpose specified.
Dated this 15th day of February 1897.
DRACUP & NOWELL,
Bradford, Patent Agents..