Improvements relating to the Manufacture of Tubes, Solid Bars, and other Hollow or Solid Metal Bodies.
Year: 1899

page_text: Date of Application, 5th Aug., 1899
Complete Specification Left, 31st May, 1900-Accepted, 7th July, 1900
Improvements relating to the Manufacture of Tubes, Solid Bars, and
other Hollow or Solid Metal Bodies.
I, ARTHUR EDWARD BECK, of Chesterfield, Chester Road, Erdington, in the
County of Warwick, Manufacturer, do hereby declare the nature of this inven-
tion to be as follows:-
This invention consists of improvements relating to the manufacture of tubes,
solid bars, and other hollow or solid metal bodies, my object being to provide
for the ready and effective reduction or working of the metal to obtain such
bodies or articles of the desired form, dimensions, and condition.
For this purpose I insert one end of the piece of metal to be worked between
specially shaped and arranged dies or tools which subject the metal to an inter-
mittent squeezing or pressing action, whilst they carry it completely through
the machine, by intermittent movements. I preferably employ not less than
two pairs of my dies cr tools arranging one pair horizontally and the other pair
vertically. The working faces of the dies or tools are of a semi-circular or other
required section but with bell shaped or widened mouths. Each die or die part
or tool is fixed on the end of a frame or block to which motion is imparted by
a pair of suitably driven eccentrics. The two blocks making up the one pair
are arranged on opposite sides of the centre line of the pass through the machine,
and the eccentrics are so arranged and driven that the blocks simultaneously.
But when the horizontal dies
approach and recede from the said centre line.
approach the centre line and come into contact with the tube or other metal
body to be operated upon, the vertically disposed dies recede from the body, and
vice-versa.
During what I term the working stroke of each die block or frame, the motion
circular roll and
imparted to it will approximate to the combined motion of
an ordinary press, and by such a motion of the die or tool a portion of the tube
or bar, or other metal body to be operated upon, will be subjected to a pressing
or squeezing action, whilst at the same time it will be carried forward to a suffi-
cient extent to permit of a repetition of the process on the succeeding part of
the body at the next stroke.
I sometimes give unequal strokes to the eccentrics, or I arrange for one
eccentric to impart the horizontal reciprocating and the other the vertical recipro-
cating motion to the block.
When operating upon a tube or hollow body I preferably employ a mandrel
to serve as a support for the interior of the tube, and such mandrel may be
fixed, may move intermittently with the tube, or be caused by suitable mech-
anical means to travel independently of the tube at the required speed. With an
independently moving mandrel such as referred to I can adapt my invention to
the manufacture of tubes with a tapering or varying thickness of metal.
Dated this 4th day of August 1900
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, &
25, Cross Street, Manchester,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements relating to the Manufacture of Tubes, Solid Bars, and
other Hollow or Solid Metal Podies.
I, ARTHUR EDWARD BECK, of Chesterfield, Chester Road, Erdington, in the
County of Warwick, Manufacturer, do hereby declare the nature of this inven
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
This invention consists of improvements relating to the manufacture of tubes,
solid bars, and other hollow or solid metal bodies, my object being to provide
for the ready and effective reduction or working of the metal to obtain such
bodies or articles of the desired form, dimensions, and condition.
For this purpose I insert one end of the piece of metal to be worked between
specially shaped and arranged dies or tools which subject the metal to an inter-
mittent squeezing or pressing action, whilst they carry it completely through
the machine by intermittent movements. I preferably employ not less than
two pairs of my dies or tools arranging one pair horizontally and the other pair
vertically. The working faces of the dies or tools are of a semi-circular or other
required section but with bell shaped or widened mouths. Each die or die part
or tool is fixed on the end of a frame or block to which motion is imparted by
a pair of suitably driven eccentrics. The two blocks making up the one pair
are arranged on opposite sides of the centre line of the pass through the machine,
and the eccentrics are so arranged and driven that the blocks simultaneously
approach and recede from the said centre line. But when the horizontal dies
approach the centre line and come into contact with the tube or other metal
body to be operated upon, the vertically disposed dies recede from the body, and
vice-versa.
During what I term the working stroke of each die block or frame, the motion
imparted to it will approximate to the combined motion of a circular roll and
an ordinary press, and by such a motion of the die or tool a portion of the tube
or bar, or other metal body to be operated upon, will be subjected to a pressing
or squeezing action, whilst at the same time it will be forced forward to a suffi-
cient extent to permit of a repetition of the process on the succeeding part of
the body at the next stroke.
I sometimes give unequal strokes to the eccentrics, or employ but one eccentric
with suitable guides for each block, and also adopt a system of toggle levers
operated in any ordinary manner to impart the required expanding and con-
tracting and reciprocating motion to the dies or forging tools.
When operating upon a tube or hollow body I preferably employ a mandrel
to serve as a support for the interior of the tube, and such mandrel may be
fixed, may move intermittently with the tube, or be caused by suitable and known
mechanical means to travel independently of the tube at the required speed. With
an independently moving mandrel such as referred to I can adapt my invention to
the manufacture of tubes with a tapering or varying thickness of metal.
The two accompanying sheets of explanatory drawings to be hereinafter referred
to represent a machine for reducing or forging tubes, solid bars, and other hollow
or solid metal bodies to the required form and dimensions in accordance with
my invention.
Figure 1 is a front elevation of the machine and Figure 2 a sectional plan on
the linex Figure 1.
The same reference letters are employed in the two views to indicate the same
parts.
The horizontally disposed dies or tools A A¹ are secured to the motion
blocks B B respectively, and in like manner the vertically disposed dies or

page_text: tools C C are secured to the motion blocks D D¹. The horizontal motion
blocks B B are driven by the eccentrics E e and E¹ el respectively, the necessary
power for the purpose being transmitted from the first motion shaft F by the
bevel. wheels Gy and G¹g and the spur wheels H h and H¹ h¹. The vertical
motion blocks D D' are each similarly operated by a pair of eccentrics, the bottom
eccentric of the lower pair being mounted directly upon the first motion shaft F
whilst its fellow, disposed above it, is driven through the spur wheels J j; the
upper pair of the vertically arranged eccentrics are driven through the medium
of the bevel wheels K k, and the spur wheels L, l.
To provide for the slight variation in the distance between the centres of each
pair of eccentrics when in motion, I make the bush or bearing of one of them
of an angular or square form externally and give a sufficient end space, as illus-
trated at Figure 2, to permit of the necessary movement of the bearing rela-
tively to the motion block.
It will be understood that the two eccentrics of each pair move in opposite
directions, and that the bloom or metal body to be operated upon is moved on
the working stroke of the dies or tools in the direction indicated by the arrow
at Figure 2, and can be pushed back immediately after each working stroke,
by hand power or by mechanical means (which in themselves form no part of
this invention) to a position regulated by a suitable stop. But during the work-
ing stroke of the tools their compressive action causes the metal to flow back
in a direction opposite to that indicated by the arrow at Figure 2, and thus the
complete bloom is gradually carried through the machine.
The various parts of the machine framing or housings are connected together
in any suitable and ordinary manner.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, 1 declare that what
I claim is:
1. The improved means for the ready and effective reduction or working of
tubes, solid bars, and other hollow or solid metal bodies, comprising dies or
forging tools having such a motion imparted thereto as will subject the metal
inserted between them to an intermittent squeezing or pressing action, whilst
forcing it completely through the machine by intermittent movements, substan-
tially as described.
2. In machines for reducing or forging tubes, solid bars, and other hollow
or solid metal bodies to the required form, the combination with the die or tool
blocks or holder frames of double eccentrics substantially as and for the purpose
described and as illustrated.
3. In machines for reducing or forging tubular metallic bodies, the combina-
tion with dies or forging tools secured to blocks through which the necessary
motion is imparted to subject the said bodies to an intermittent squeezing or
pressing action and force them completely through the machine by intermittent
movements, of an independently moving mandrel, substantially as and for the
purpose described.
4. An improved machine for reducing or forging tubes solid bars, and other
hollow or solid metal bodies, constructed and arranged substantially as described
and as illustrated.
1
ديمة
1
1000
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple. Street, Birmingham, &
25, Cross Street, Manchester,
Agents for the Applicant.
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple. Street, Birmingham, &
25, Cross Street, Manchester,
Agents for the Applicant.