AN IMPROVED MACHINE FOR BENDING METALLIC PIPES OR SPOUTS
Year: 1863

page_text: LETTERS PATENT to George Haseltine, of the "International Patent
Office," No. 12, Southampton Buildings, Chancery Lane, in the County
of Middlesex, Civil Engineer, for the Invention of "AN IMPROVED MACHINE
FOR BENDING METALLIC PIPES OR SPOUTS."-A communication from abroad
by Elijah Valentine and Moses Thompson Ridout, both of Milwaukee,
Wisconsin, United States of America.
Sealed the 26th February 1864, and dated the 7th November 1868.
COMPLETE SPECIFICATION filed by the said George Haseltine at the
Office of the Commissioners of Patents, with his Petition and Decla-
ration, on the 7th November 1863, pursuant to the 9th Section of the
Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HASELTINE, of the "International Patent Office," No. 12, Southampton
Buildings, Chancery Lane, in the County of Middlesex, Civil Engineer, send
greeting.
WHEREAS I am in possession of an Invention for "AN IMPROVED MACHINE
FOR BENDING METALLIC PIPES OR SPOUTS," and have petitioned Her Majesty to
grant unto me, my executors, administrators, and assigns, Her Royal
Letters Patent for the same, and have made solemn declaration that it
has been communicated to me from abroad by the Inventors, Elijah Valentine
and Moses Thompson Ridout, both of Milwaukee, Wisconsin, United States
5 of America.

page_text: NOW KNOW YE, that I, the said George Haseltine, do hereby declare
that the following Complete Specification under my hand and seal fully
describes and ascertains the nature of the said Invention, and in what manner
the same is to be performed, in and by the following statement, reference being
had to the accompanying Drawings, making a part of this Specification:-
The nature of the said Invention consists in the use of an elastic laminated
core or mandrel in connection with a swaging apparatus for the purpose of
readily and accurately bending metallic pipes or spouts for tea and coffee pots
and for various other purposes.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side view of this machine ready for operation; Figure 2, a
side view of the same showing the position of the several parts when the
swaging apparatus is in operation; Figure 3 is a top view of said machine,
when in the position indicated by Figure 2 (looking from right back to left in
the direction indicated by the arrow); Figure 4, a transverse section of the
same in the direction indicated by the line x, x, of Figure 1 (looking in the
direction indicated by the arrow); Figure 5, a transverse section in the line
y, y, of Figure 2. Like letters refer to corresponding parts in all the Figures.
A bench or table, composed of the top A and legs B, receives and supports
the respective parts of said machine for bending metallic pipes or spouts.
Secured to and rising from this table A are the following parts of said machine,
namely, the uprights C, C, and D (Figures 1 and 2), the guiding and con-
trolling arc E, the longitudinal guiding block F in the vertical plane of the
arc E (Figure 5), and the longitudinal shaping block G, running parallel with
the arc E and block F, as represented in Figures 1, 2, and 5 of the accom-
panying Drawings. The upright D is made to terminate in a pin a (Figures
1 and 2), which receives and serves as a pivot for the inner end of the lever
arm H, which vibrates horizontally upon the supporting bar c, placed upon
the upright C, C. To this horizontal lever H is jointed the core or mandrel J,
which rests upon the upper surface of the forming and shaping block G. The
end of this shaping block G farthest removed from the horizontal lever H is
curved in the form to be imparted to the metallic spout (Figures 1 and 2).
A transverse aperture (see Figure 4, where it is filled by the sliding block K)
is made in the bench A, at a point corresponding with the intersection of the
curved end of the shaping block with its upper straight surface. This
transverse aperture terminates at the base of the outer face of the shaping
block G on the one side, and of the guiding block F on the other, and
coincides accurately with equal vertical apertures or notches (d, Fig. 2,)

page_text: formed opposite to each other in the said blocks. These vertical notches in
the blocks F and G form bearings for the ends of a sliding journal box or
block K (Figure 4), which plays freely up and down therein through this trans-
verse aperture. This sliding journal box is supported in an elevated position
by the spiral spring L (Figures 4 and 5), the lever M, and the bridle piece N,
or their or their equivalents, all secured under the bench A, as represented in
Figure 4. The resistance of the spring L may be overcome, and the journal
box K with its attachments be forcibly drawn down by means of a treadle
P and connecting rod O. The descent, however, of the journal box K is
arrested by the stops Q, Q, on the outer faces of the blocks F and G, which
stops catch and embrace the ends of the pin e, upon which is jointed (within
the journal box K) the main swaging lever R. This main lever R vibrates
freely in the longitudinal space between the parallel blocks F and G, although
made to fit closely therein, as represented in Figure 3. The vibratory
movement of this main lever is arrested by the stops fand f, fixed upon the
controlling are E (Figures 1 and 2). Upon that face of the journal box K
more remote from the curved end of the shaping block G is secured an
upright retaining hook S (see Figure 5), which is made to bend over the
upper surface of this shaping block G, as represented in Figure 5. A grooved
swaging wheel T is firmly attached to the front face of the main lever R
(Figures 1, 2, and 4), directly over the shaping block G, by means of the
embracing box g (Figures 3 and 4), which is combined with a sliding bar i on
the opposite side of the lever, as represented in Figures 3 and 4. The
shank (Figure 4), which projects from the inner side of the embracing
box g, passes through a longitudinal slot m (Figure 4) in said lever R, and is
secured to the sliding bar i by a key or other suitable device. The inner
journal projection of the swaging wheel T also passes freely through a second
longitudinal slot n (Figure 4) in the lever R, and is supported by means of a
journal aperture in the lower end of the sliding bar i, while the outer journal
projection is similarly supported in the lower end of the embracing box g.
An elastic band p of india-rubber or other suitable material is secured to the
hook S (clearly shown in Figure 1), which rises immediately behind the
swaging wheel T, and is then carried forward under and over this wheel and
fastened back to the end of a spring bar W in the rear of the horizontal
actuating lever H, as clearly illustrated in Figure 1. The upper surface of the
shaping block G is slightly concave, and is covered with a layer r of india-
rubber or other elastic substance. The mandrel J is composed of a series of
thin elastic metallic plates placed on either side of a core q, of india-rubber or
other elastically yielding material, the whole firmly secured to a suitable

page_text: heads, or this mandrel may be made in a solid piece of any substance
possessing proper elasticity and solidity for the purpose required.
OPERATION OF THE MACHINE.
The mode of operating this improved machine is readily described as
follows, namely :-
The core or mandrel J is thrown forward by the actuating lever H until its
end projects over the curve in the shaping block G a distance equal to the
length and extent of the curve desired in the spout to be bent. It is retained
A tube
in this position by means of a pin inserted in the supporting bar c.
of tin or other metal of the required size, length, and taper is then slipped over
and upon the mandrel J, and by means of the treadle P and the sliding
journal box K, the hook S and the swaging wheel T are brought to bear
firmly upon the upper surface of the tube, which is thereby pressed closely
against the elastic surface of the shaping block beneath it. By a movement
of the main lever R the swaging wheel is then carried forward, as represented
in Figure 2, bending the tube as it passes over it, the perfect regularity of its
curve being secured and the evenness of its surface preserved by the resistance
of the elastic core or mandrel J within, in connection with the elastic band P
and cushion r without the tube. The tube or spout being thus easily and
accurately bent into the desired shape, the core J is readily removed by a
reverse movement of the actuating lever H, and by relieving the treadle P
from the pressure exerted thereon the retaining hook S and swaging wheel T
are elevated and the finished spout at once released from the machine. These
movements may all be executed with great rapidity and ease, thereby saving
much labor while producing cheaply a superior article of manufacture.
Having thus fully described said Invention, what I claim therein as new,
and desire to secure by Letters Patent, is, the use of an elastic core or mandrel
in the manufacture of curved metallic pipes or spouts, substantially in the
manner herein-before set forth.
I also claim the use of a series of thin elastic metallic plates in the con-
struction of a core or mandrel for the inflection of metallic spouts, substantially
in the manner as herein set forth. When an elastic core or mandrel is used
in the manufacture of curved metallic spouts, I claim the use of a shaping
block G, a retaining hook S, and a lever actuated swaging wheel T, or their
equivalents, when combined and arranged substantially in the manner and for
the purpose herein set forth. When a lever actuated swaging wheel T and
shaping block G are used in the inflection of metallic spouts, I claim the use
of an elastic protecting band P and elastic cushion r, or their equivalents,

page_text: when combined and arranged substantially in the manner and for the purpose
herein set forth.
In testimony whereof, I, the said George Haseltine, have hereunto set my
hand and seal, this Seventh day of November, in the year of our Lord
One thousand eight hundred and sixty-three.
GEORGE HASELTINE. (L.B.)