IMPROVEMENTS IN MACHINERY AND APPARATUS FOR PRODUCING FIGURED PATTERNS UPON THE NET OR LACE MADE IN DOUBLE- LOCKER LACE MACHINES
Year: 1877

page_text: LETTERS PATENT to Squire Whitehurst, Manager in the Employment of
Messrs. Boden and Company, of Derby, in the County of Derby, Lace Manu-
facturers, for the Invention of "IMPROVEMENTS IN MACHINERY AND APPARATUS
FOR PRODUCING FIGURED PATTERNS UPON THE NET OR LACE MADE IN DOUBLE-
LOCKER LACE MACHINES."
caled the 24th July 1877, and dated the 19th May 1877.
PROVISIONAL SPECIFICATION left by the said Squire Whitehurst at the
Office of the Commissioners of Patents on the 19th May 1877.
SQUIRE WHITEHURST, Manager in the Employment of Messrs. Boden and Company,
of Derby, in the County of Derby, Lace Manufacturers. "IMPROVEMENTS IN
MACHINERY AND APPARATUS FOR PRODUCING FIGURED PATTERNS UPON THE NET OR
LACE MADE IN DOUBLE-LOCKER LACE MACHINES."
In a double-locker lace machine I employ five or more guide bars, each carrying
a full set of guides; two of the bars provide the threads to make the net; one of
the bars provide the threads to make vertical stripes; and the remaining bars
provide the threads to make a variety of patterns; the bars making the net are
operated in the usual way. The other three or more bars are each operated by a
pattern wheel and two double-ended rocking levers; the lower end of each lever is
provided with a truck which bears upon the pattern wheel; the upper ends of the
levers also carry trucks, one of which bears upon a plate secured to and capable of
adjustment upon the guide bar, and the other truck upon a spring secured to
the bar.
By the above-described apparatus I am enabled to pattern the traversed nets
made in double-locker lace machines.

page_text: Figure 1 regresents a sectional view of my improved machinery and apparatus
applied to a double-locker lace machine; Figure 2 is a front view of the same, with-
out the two bars D, which are employed to make traversed net; the corresponding
parts in each Figure are lettered alike.
In carrying out my improvements I employ five or more guide bars. In Figure 1
five only are shown; each bar carries a full set of guides, but in Figure 2 the whole
of the guides are not shown; those only are shown which carry threads to produce
the pattern shown.
At Figure 1 the carriages A, bolts or combs B, point leads C, and guide bars D
of a double-locker lace machine only are shown, the rest of the machine being of
the usual construction. The carriages A are shewn in the front bolts or combs ;
Dare two guide bars supplied with threads to make traversed plain net, and are
operated in the usual way. In addition to the net bars I employ three or more
other guide bars, three only being required to make the pattern shewn at Figure 2.
The guide bar E at the back of the net bars is supplied with threads to make
vertical stripes M; the two guide bars F are provided with threads to make a
variety of patterns N. These bars are each operated by two double-ended levers
carrying a truck at each end; these levers rock upon an axle carried by a bracket
secured to the machine. The front guide bar F has plates or brackets F¹ secured to
it, or capable of adjustment upon it. The trucks at the upper ends of rocking
levers G bear upon the plates and springs F3; the trucks at the lower ends bear
upon a pattern wheel H; the second guide bar F carries plates F2, the bar being
operated by a pattern wheel H¹ and two rocking levers G'. The axle carrying the
pattern wheels H, H', is provided with a ratchet wheel I, operated by a driver hinged
to one end of a lever K, which carries a truck bearing upon a cam L, which
revolves once to every twelve motions of the machine. The axles of the pattern
wheels and cam revolve in bearings secured to the machine; both pattern wheels
are cut alike, but are placed reversely, so that as the front guide bar traverses to
the right the second guide traverses to the left, changing to the reverse.
In the Drawings I have only shewn three guide bars, two being operated by
pattern wheels, but I do not contine myself to that number, but employ a greater
number, according to the pattern or patterns I may require in cach case; the bars
requiring to be traversed I operate by a pair of rocking levers and a pattern wheel

page_text: to each bar. Nor do I confine myself to the number of motions to each revolution of
the cam L, as the same will vary according to the gauge of the machine, or of the
traversed net made thereon, or to the pattern required.
By means of apparatus arranged and operating as above shown and described I
am enabled to traverse threads right or left, or straight down, to produce a great
variety of patterns upon a traversed net ground.
Having now described the nature of the said Invention, and in what manner the
same may be performed, I declare that I claim the combination of apparatus
for producing patterns on traversed net made in double-locker lace machines,
substantially as herebefore described and illustrated in the accompanying Drawings.
In witness whereof, I, the said Squire Whitehurst, have hereunto set my hand
and seal, this 18th day of July, in the year of our Lord One thousand eight
hundred and seventy-seven.
Witness,
H. W. GOUGH, C.E.,
Nottingham.
SQUIRE WHITEHURST. (L.S.)