A NEW OR IMPROVED APPARATUS FOR PRICKING AND WRITING BY MEANS OF COMPRESSED AIR OR GAS, WHICH IS ALSO APPLICABLE TO OTHER PURPOSES
Year: 1876

page_text: LETTERS PATENT to Henry Pattman Trueman, of Birmingham, Machinist, for
the Invention of "A NEW OR IMPROVED APPARATUS FOR PRICKING AND
WRITING BY MEANS OF COMPRESSED AIR OR GAS, WHICH IS ALSO APPLICABLE
TO OTHER PURPOSES."
Sealed the 1st December 1876, and dated the 20th June 1876.
PROVISIONAL SPECIFICATION left by the said Henry Pattman Trueman at
the Office of the Commissioners of Patents on the 20th June 1876.
• 66
HENRY PATTMAN TRUEMAN, of Birmingham, Machinist. A NEW OR IMPROVED
APPARATUS FOR PRICKING AND WRITING BY MEANS OF COMPRESSED AIR OR GAS,
WHICH IS ALSO APPLICABLE TO OTHER PURPOSES."
This Invention, which relates to a new or improved apparatus for pneumatically
pricking and writing, is especially applicable in the pricking or marking of patterns,
designs, or ornamental or other devices in or on paper for the subsequent use of
embroidery manufacturers. The apparatus is also specially applicable for use as a
pneumatic pen for various caligraphical purposes; and its use is also generally
applicable in the marking or pricking of designs, patterns, ornamental devices,
caligraphical characters and marks in or on paper or other casily permeable or per-
forated material or substance to be used subsequently for various manufacturing and
useful purposes.
The apparatus is also applicable in a slightly modified form in driving the
needles of sewing machines.
The improved pricking apparatus consists mainly of an upper cylindrical casing
or air chamber in which revolves a disc wheel provided peripherally with projecting
vanes or equivalent cells or other cross divisions. The spindle carrying this wheel
carries also a crank attached to a depending connecting rod, the free and lower end
of which carries or is provided with a needle or pricker point which emerges at
the small opening or mouth of a nozzle at the lower end of a surrounding and
protecting tube which depends from the lower side of the air chamber. An air
pipe is projected into the casing of the air chamber in such a direction as to cause a
current of air directed from the mouth or from any convenient or suitable air or
gas compressing apparatus to impinge tangentially to the circumference of the
wheel and full against the said vanes, cells, or other cross divisions, and thus cause
the wheel to revolve very rapidly, and this by means of the said crank and con-
necting rod causes the needle end of the latter to have very rapid motion in and
Price 6d.

page_text: out of the mouth of the nozzle; and if the apparatus is at such a time held in
and guided by the hand of the operator, as a pen, or mounted vertically on small
castors, and moved about in any desired direction by hand, any desired marking
caligraphical figurative for embroidery purposes or otherwise may be readily
produced.
A very convenient apparatus for compressing the air for actuating this apparatus
consists of a bellows actuated by the foot of the operator, and from which an air
pipe leads to an india-rubber or elastic extensible ball, from which another pipe
The
leads to the said air pipe projecting into the casing of the air chamber.
apparatus when used in combination with such an arrangement would be entirely
under the control of the operator, and he might quicken the movements of his
foot and augment the air pressure, and consequently increase the rapidity of move-
ments of the needle in open parts of the design he wishes to produce, or actuate the
bellows less quickly and decrease the air pressure and consequently lessen the
rapidity of the movements of the needle in intricate parts of such design.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Henry Pattman Trueman in the Great Seal Patent Office on
the 14th December 1876.
"A NEW OF IMPROVED
HENRY PATTMAN TRUEMAN, of Birmingham, Machinist.
APPARATUS FOR PRICKING AND WRITING BY MEANS OF COMPRESSED AIR OR GAS,
WHICH IS ALSO APPLICABLE TO OTHER PURPOSES."
This Invention, which relates to a new or improved apparatus for pneumatically
pricking and writing, is especially applicable in the pricking or marking of patterns,
designs, or ornamental or other devices in or on paper for the subsequent use of
embroidery manufacturers. The apparatus is also especially applicable for use as a
pneumatic pen for various caligraphical purposes; and its use is also generally
applicable in the marking or pricking of designs, patterns, ornamental devices,
caligraphical characters and marks in or on paper or other easily permeable or
perforated material or substance to be used subsequently for various manufacturing
and useful purposes.
I would here observe that in my Provisional Specification I stated that the
apparatus was also applicable in a slightly modified form in, driving the needles
of sewing machines, but I now find that it is not so applicable with success,
and I therefore hereby disclaim the application of this apparatus in or for driving
sewing machines.
The improved pricking apparatus is illustrated on the accompanying Sheet of
Drawings in Figures 1 and 2, of which Figure 1 represents a front elevation, the
front plate (14) being removed to shew the interior arrangement, and Figure 2
a section through x-x, Figure 1.
The improved apparatus consists mainly of an upper cylindrical casing or air
chamber 1 in which revolves a disc wheel 2 provided peripherally with projecting
vanes 3 or equivalent cells or other cross divisions. The wheel 2 is carried by a
spindle 4, which is sustained by the back of the casing 1 and by a cross piece 13,
and which also carries a crank 5, to which is attached a depending connecting
rod 6, the free and lower end of which carries or is provided with a needle or
pricker point 7, which emerges at the small opening or mouth 8 of a nozzle 9
at the lower end of a surrounding and protecting tube 10 depending from the
lower side of the air chamber 1. An air pipe 11 is attached to the casing 1 in
such a direction as to cause a current of air directed from the mouth or from any
convenient or suitable air or gas compressing apparatus to impinge tangentially
to the circumference of the wheel 2 and full against the cells or other cross divisions
or vanes 3, and thus cause the wheel to revolve very rapidly, and this by means
of the crank 5 and connecting rod 6 causes the needle end 7 of the latter to have

page_text: very rapid motion in and out of the mouth of the nozzle 9; and if the apparatus
is at such a time held in and guided by the hand of the operator, as a pen, or
mounted vertically on small castors and moved about in any desired direction by
hand, any desired marking caligraphical figurative for embroidery purposes or
otherwise may be readily produced. The air subsequently escapes through perfora-
tions 15 made in the periphery of the casing 1.
A very convenient apparatus for producing a current of air for actuating this
apparatus consists of a bellows actuated by the foot of the operator, and from which
an air pipe leads to an india-rubber or elastic extensible ball, from which another
pipe 12 leads to the pipe 11. The apparatus when used in combination with such
an arrangement would be entirely under the control of the operator, and he might
quicken the movements of his foot and auginent the air pressure, and consequently
increase the rapidity of the movements of the needle in open parts of the design
he wishes to produce, or actuate the bellows less quickly and decrease the air
pressure and consequently lessen the rapidity of the movements of the needle in
intricate parts of such design. Any other suitable known means (mechanical or
chemical) may be used for generating a supply of gas, vapour, or other elastic
fluid for actuating the pricking apparatus.
The following modifications may be made in the above-described pricking
apparatus: A piston or flexible diaphragm may be substituted for the wheel, and
air allowed to press alternately on either side thereof and so produce a direct recipro-
cating motion on the pricker, or in the case of the diaphragm the pressure of air
may be alternately supplied and cut off on one side only, a spring effecting the
return of the diaphragm.
Having now described the nature and objects of my said Invention, together with
the manner in which the same is to be or may be performed or carried into practice,
I would remark in conclusion that I claim as my Invention, the general construc-
tion and the application of the above-described apparatus to the uses specified, and
the working thereof by air, gas, vapour, or other clastic fluid, substantially as above
described, and as illustrated on the accompanying Sheet of Drawings.
In witness whereof, I, the said Heury Pattman Trueman, have hereunto set
my hand and scal, this Fifth day of December, in the year of our Lord
One thousand eight hundred and seventy-six.
Witness,
JOHN KENDRICK.
HENRY PATTMAN TRUEMAN. (L.S.)