IMPROVEMENTS IN THE MANUFACTURE OF BLANKS OR MOULDS FOR ARTICLES HAVING A BOLSTER, SHOULDER, OR HEAD
Year: 1877

page_text: PROVISIONAL SPECIFICATION left by Thomas Fox at the Office of the Com-
missioners of Patents on the 1st June 1877.
THOMAS Fox, of Rockingham Street, Sheffield, in the County of York, Steel
Merchant. "IMPROVEMENTS IN THE MANUFACTURE OF BLANKS OR MOULDS FOR
ARTICLES HAVING A BOLSTER, SHOULDER, OR HEAD."
My Invention has for its object the production of the blanks or moulds of
articles having a bolster, shoulder, or head, such for example as shuttle tongues,
blades, forks, flyers, turnscrews, and machine keys, in a simple, expedious, and
economical manner, such results being attained by the combined operations of
rolling, or otherwise forming the material in bars' of suitable sections, as herein-after
described, and in the peculiar arrangement of the cutters or punches for cutting out
and dividing the blanks or moulds one from the other.
In carrying out my Invention in the manufacture of blanks for shuttle tongues
(for example) the shape of which approximates to that of a large nail with the head
projecting on one side, I first roll or otherwise shape the metal into bars, the
edges of which are thicker than the central portion thereof. The extra bulk
of the edges may be all on one side of the centre or "web" of the bar, or a part
may project on one side and the remainder on the other side of the web as found
most convenient.
The dimensions of the edges of the bars are made to correspond to the size of the
head of the shuttle tongue, and the web of the bar should correspond to the size of
the body or point of the same. I then proceed to punch or cut the shapes out, one
arrangement being what is generally known as "heads and tails," that is to say, the
head of one blank is side by side with the point of the contiguous blank on each
side, whereby the articles are produced without any waste. The mode of cutting
out the blanks may however be modified whilst retaining the same principal, and
the same section of bar and blanks for shuttle tongues may also be produced in com-
bination with blanks for other purposes. For example, blanks for flyers and shuttle
tongues may be produced with the smallest amount of scrap or waste, by arranging
them together in the following manner :—I take a bar of a section similar to that
herein-before described having thick edges, one of which is of a size suitable for the
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page_text: boss of the flyer, and the other edge suitable for the heads of the tongues, the web being
suitable for the prongs of the flyer, and also for the points of the tongues. One
edge of the bar forms the boss of the flyer, and the prongs are arranged to reach
across the web to the other edge.
The metal between the prongs is equal in width to two tongue points, and the
width of the tongue heads being of the same measurement as the combined prongs
of the flyer and the points of the tongues, it follows that the three moulds are thus
produced from a parallel strip cut transversely from the bar of the before-described
prepared metal without any or with but little waste.
Blanks for machine keys, knife blades, forks, and turnscrews, in various combi-
nations may also be cut out of bars of the section before-mentioned in a similar
manner, whereby considerable economy is effected in the cost of producing such
articles by reason of the material being utilized to the utmost extent practicable
with a minimum amount of scrap or waste.