IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE OF PIPES OR TUBES AND SIMILAR ARTICLES
Year: 1878

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake, &
Co., Patent Agents, Southampton Buildings, London, for the Invention of
"IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE OF PIPES OR TUBES
AND SIMILAR ARTICLES." A communication from abroad by George Matheson,
of McKeesport, Pennsylvania, United States of America.
PROVISIONAL SPECIFICATION left by the said William Robert Lake at the
Office of the Commissioners of Patents on the 30th November 1878.
'
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. "IMPROVEMENTS IN MACHINERY FOR THE
MANUFACTURE OF PIPES OR TUBES AND SIMILAR ARTICLES." [A communication
from abroad by George Matheson, of McKeesport, Pennsylvania, United States
of America.]
This Invention relates to improvements in machinery for the manufacture of
pipes or tubes and other cylindrical articles, and is specially designed for
straightening, rounding, sizing, and finishing the same, also for imparting the
desired finish to their surface.
The said Invention comprises the combination of a pair of rolls, the axes of
which are arranged at an acute angle to each other and on different planes, the
rolling surface of the rolls being concave, and their journals placed in pivotted
bearings secured to two plates, one of the said plates being held above the other
through the medium of four columns, furnished with screw-nuts for the purpose of
elevating or depressing the upper plate with relation to the lower one, each column
being furnished with a pivoted and adjustable support for adjustable guide-arms
furnished with friction rollers.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Robert Lake in the Great Seal Patent Office on the 28th
May 1879.
"
THE
WILLIAM ROBERT LAKE, of the Firm of Haseltinė, Lake, & Co., Patent Agents,
Southampton Buildings, London. ." IMPROVEMENTS IN MACHINERY FOR
MANUFACTURE OF PIPES OR TUBES AND SIMILAR ARTICLES." A communication
from abroad by George Matheson, of McKeesport, Pennsylvania, United States of
America.
This Invention relates to improvements in machinery for straightening, finishing,
and polishing pipes or tubes and other cylindrical articles. The said Invention
comprises a pair of rolls, the axes of which are arranged at an acute angle to each
other and on different planes, the rolling surface of the said rolls being concave, and
their journals placed in pivoted bearings secured to two plates; one of the said
plates is held above the other through the medium of four columns furnished with
screw nuts for the purpose of elevating or depressing the upper plate with relation
to the lower one, each column being furnished with a pivoted and adjustable
support for adjustable guide-arms provided with friction-rollers, all being con-
structed, combined, arranged, and operating with relation to each other, as herein-
after more fully described.
The said Invention is illustrated in the accompanying Drawing, which I will
now proceed to describe.
:
Figure 1 is a side elevation of the said rolls and their bearings, and also an end
view of the adjustable guide-arms and supports.
Figure 2 is an end view of the said rolls and their bearings, and a side view of
the adjustable guide-arms furnished with friction-rollers.
Figure 3 is a vertical longitudinal section of the lower roll and its bearing, and
a transverse section of the plate to which it is pivoted.
Figure 4 is a diagram representing the relative position of the axes of the rolls
to each other.
A represents the lower plate, to which are pivoted the bearings B of the lower
roll C; D represents the upper plate, to the under surface of which are pivoted the
bearings E of the upper roll F, g and h representing the pivots of the bearings
B and E. The plate D is held in position with relation to the plate A through the
medium of the columns i furnished with screw nuts j and k, through the agency of
which the plate D may be raised or lowered at the will of the operator, whereby
the space between the rolls C, F, may be increased or diminished to suit the
diameter of the article to be straightened or finished.
The said bearings are made adjustable for the purpose of adapting the rolls to
the various diameters of the pipe or other cylindrical article subjected to their action.
By means of this adjustability of the bearings of the rolls the entire length of their.
surface may be brought to bear upon the pipe or other cylindrical article, which
is to be subjected to their action for the purpose of straightening and finishing the
'same.
When the rolls are properly adjusted with relation to the pipe or other
cylindrical article placed between them, the bearings are secured in a fixed position
through the medium of set screw l; m represents pivoted bearings for the guide-
arms n, the inner ends of which are furnished with friction-rollers o. The
pivoted bearings m are held in position on the columns by means of set-screws p,
and the guide-arms n are held in position in the bearings m by means of set-
Screws 4. The guide-arms n with their friction-rollers are used for the purpose of
holding the pipe or other cylindical article in position in its passage between the
rolls, their relation to the pipe being clearly shewn in Figure 2; 8 representing the
pipe.
The power for operating the rolls may be applied by any suitable means.

page_text: The pipe or other cylindrical article to be straightened, finished, and polished, is
passed longitudinally between the rolls and the friction-rollers of the guide-arms,
and the revolving of the said rolls will revolve the pipe or other cylindrical body
or article passed between them, whereby it will be straightened and finished with a
smooth surface. The character of the finish will depend in a great degree upon the
amount of pressure exerted by the rolls.
Having thus fully described the said Invention as communicated to me by my
foreign correspondent, and the manner of performing the same, I wish it under-
stood that I claim,-
First. In a machine for straightening, finishing, and polishing pipes or other
cylindrical articles, a pair of rolls, the rolling surfaces of which are concave, and
which rolls have their axes arranged at different angles and upon different planes,
and in pivoted adjustable bearings, substantially as herein described and for the
purpose set forth.
Second. In a machine for straightening, finishing, and polishing pipes or other
cylindrical articles, a pair of rolls, the rolling surfaces of which are concave, and
which rolls have their axes arranged at different angles and upon different planes
in combination with the guide-arms having friction-rollers supported in adjustable
bearings, substantially as herein described and for the purpose set forth.
Third. In a machine for straightening, finishing, and polishing pipes and other
cylindrical articles, a pair of rolls, the rolling surfaces of which are concave, and
which rolls have their axes arranged at different angles and upon different planes in
combination with the adjustable plate, substantially as herein described and for
the purpose set forth.
In witness whereof, I, the said William Robert Lake, have hereunto set my
hand and seal, this Twenty eighth day of May, in the year of our Lord
One thousand eight hundred and seventy-nine.
WM. ROBT. LAKE. (L.S.)