Improvements in Jacquard Card Lacing Machines.
Year: 1893

page_text: Date of Application, 29th Dec., 1893
Complete Specification Left. 29th Sept., 1894-Accepted, 10th Nov., 1894
PROVISIONAL SPECIFICATION.
Improvements in Jacquard Card Lacing Machines.
We, ALEXANDER ANDERSON, Manager, and ROBERT ANDREW FERGUSON
POLLOCK, Mechanic both of the Singer Manufacturing Company's Works,
Kilbowie, Dumbartonshire do hereby declare the nature of this invention to be as
follows:-
This invention is a development of the improvements in Jacquard card
lacing machines described in the Specification of Letters Patent granted to us
No. 8816 of 1886 and it consists mainly of improved arrangements of mechanism
for operating the shuttle drivers of devices for securing the shuttles in their carriers
and mechanism for actuating the feed wheels carrying the Jacquard cards in order
to produce long or short stitches as required to suit the perforations used for lacing
together the cards.
The shuttle carriers which are of the oscillating type are carried by arms having
each a boss at the centre of oscillation carried by a bearing bracket on the machine
frame, the orifice in said boss which passes over the shaft carrying the feeding
wheels being made oblong in order to permit of vertical adjustment of said shaft.
To the arm carrying each shuttle carrier is jointed the end of a link whose opposite
end is jointed to a lever arm secured on a rock shaft carried in bearings in the
frame and operated by a lever arm on whose end is a pin or roller fitted in a
grooved cam secured upon the main driving or other rotating shaft whilst upon the
same shaft is a second cam acting through a link or lever on the needle driving
rock shaft the link being carried by a radius bar centred loosely on the rock shaft
which operates the shuttle drivers."
Each shuttle carrier is formed with a fixed projection or heel part against which
the heel of the shuttle bears and by which it is driven forward whilst at its opposite
end it is formed with horns or prongs to partly embrace the point of the shuttle
and serve to drive it rearwards. The pronged part is either made separate from
and jointed to the main part of the shuttle carrier so that it may be opened out
laterally to permit of the shuttle being withdrawn or one prong may be formed on
the carrier whilst the other prong is jointed and is adapted to be lifted or tilted
upwards to release the shuttle, a spring latch being provided in either case to lock
the prongs when the shuttle is in the carrier.
For the purpose of operating the feed wheels to produce long and short stitches
alternately or otherwise a ratchet wheel keyed on the feed wheel shaft is formed
with suitably spaced teeth certain of which are cut only partially across the
periphery from one side whilst others are cut only partially across from the opposite
side or entirely across the periphery, two pawls being provided the one to operate
on one set of teeth and the other on the remaining teeth or two separate ratchet
wheels may be provided. The pawls are carried upon radius rods centred loosely
on the feed wheel shaft and having each adjustably secured to their outer ends a
link adjustably secured at its opposite end to the opposite arms of a double bell
crank lever centred on the machine frame and having an arm provided with a pin
or roller fitted in a grooved cam on the driving or other rotating shaft whereby the
requisite forward and retractive movements are imparted through the bell crank
and links to the pawls engaging the feed ratchet.
Dated this 28th day of December 1893.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.

page_text: Improvements in Jacquard Card Lacing Machines.
We, ALEXANDER ANDERSON, Manager, and ROBERT ANDREW FERGUSON
POLLOCK, Mechanic, both of the Singer Manufacturing Company's Works,
Kilbowie, Dumbartonshire, 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 is a development of the improvements in Jacquard card lacing
machines described in the Specification of Letters Patent granted to us No. 8816
of 1886 and it consists mainly of improved arrangements of mechanism for operating
the shuttle drivers, of devices for securing the shuttles in their carriers, and
mechanism for actuating the feed wheels carrying the Jacquard cards in order to
produce long or short stitches as required to suit the perforations used for lacing
together the cards.
As illustrated on the accompanying drawings, Fig. 1 being an end elevation,
Fig. 2 a front elevation and Figs. 3 to 8 details of the Jacquard card lacing
machine, the shuttle carriers A which are of the oscillating type are carried by
arms B having each a boss C at the centre of oscillation carried by a bearing
bracket D on the machine frame D', the orifice in said boss which passes over the
shaft E carrying the feeding wheels F being made oblong as shewn at Figs. 7
and 8 in order to permit of vertical adjustment of said shaft. To the arm carrying
each shuttle carrier is jointed the end of a link G whose opposite end is jointed to
a lever arin H secured on the rock shaft I carried in bearings in the frame and
operated by a lever arm J on whose end is a pin or roller fitted in a grooved
cam K secured upon the main driving or other rotating shaft L whilst upon the
same shaft is a second cam M acting through a link N and lever N' on the needle
driving rock shaft O the link being carried by a radius bar P centred loosely on
the rock shaft which operates the shuttle drivers.
As shewn at Figs. 3 and 4 each shuttle carrier A is formed with a fixed
projection or heel part a against which the heel of the shuttle 6 bears and by which
it is driven forward whilst at its opposite end it is formed with horns or prongs a', a²
to partly embrace the point of the shuttle and serve to drive it rearwards. The
pronged part a', a², is either made separate from and jointed to the main part of
the shuttle carrier so that it may be opened out to permit of the shuttle being
withdrawn; or as shewn by Figures 5 and 6 one prong a' may be formed on the
carrier whilst the other prong a² is jointed and is adapted to be turned on its
centre in order to release the shuttle, a spring latch a³ being provided in either
case to lock the prongs when the shuttle is in the carrier.
For the purpose of operating the feed wheels F to produce long and short
stitches alternately or otherwise a ratchet wheel Q keyed on the feed wheel shaft E
is formed with suitably spaced teeth certain of which are cut only partially across
the periphery from one side whilst others are cut only partially across from the
opposite side or as shewn one set c may be cut partially across and the other c'
entirely across the periphery, two pawls q, q, being provided the one to operate on
one set of teeth and the other on the remaining teeth. The pawls q, q', are carried
upon radius rods 22, 93, centred loosely on the feed wheel shaft E and having each
adjustably secured to their outer ends links q', ', adjustably secured at the opposite
end to the opposite arms of a double bell crank lever R centred on the machine
frame and having an arm provided with a pin or roller r fitted in a grooved cam S
on the driving or other rotating shaft L whereby the requisite forward and
retractive movement is imparted through the bell crank R and links q, q, to the
pawls engaging the feed ratchet.

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 Jacquard card lacing machine the several parts of which are constructed,
combined and operated substantially as described with reference to the annexed
drawings.
2. In a Jacquard card lacing machine the arrangement in combination of
brackets D fitted on the machine frame and the shuttle carrier arms B carried in
said brackets and having central bosses with oblong orifices to permit of vertical
adjustment of the feed wheel shaft E substantially as described with reference to
the drawings annexed.
3. In a Jacquard card lacing machine the combination of mechanism for operating
the shuttle drivers and needle rock shaft substantially as described with reference
to the annexed drawings.
4. In a Jacquard card lacing machine the combination with the arms of the
shuttle drivers, of the links G levers H and J secured on the rock shaft I and the
rotating cam K operating on the lever J substantially as described with reference
to the annexed drawings.
5. In a Jacquard card lacing machine a shuttle carrier constructed substantially
as described with reference to the annexed drawings.
6. In a Jacquard card lacing machine the ratchet wheel Q on the feed wheel
shaft having teeth formed as described in combination with pawls acting on said
teeth to produce a varying feeding movement of the feed wheels substantially as
described with reference to the annexed drawings.
7. In a Jacquard card lacing machine the combination with the feeding ratchet Q
and pawls acting thereon of the double bell crank R connected to said pawls and
operated by the cam S substantially as described with reference to the annexed
drawings.
Dated this 28th day of September 1894.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.