Year: 1899

page_text: I, HERMANN FRANK, of Schiffgraben 14, Hanover, in the Empire of Germany,
Engineer, do hereby declare the nature of this invention to be as follows:-
The present invention is for the purpose of providing a compensating piece for
pressure conducting pipes which eliminates the tension produced in every pipe
channel with flange joints; it is especially of advantage in channels in which
many curved pipes occur.
The accompanying drawing represents the invention in two forms of
construction.
The novel feature of the new element consists of a part G which is curved at a
right-angle, at the shorter end of which a second pipe G¹ is connected. The
hollow space formed by the adjacent ends of the two pipes G and G¹ has the
shape of a ball and is filled out by a ball of brass R, the latter having an
aperture like that of the pipe G. In such a way a ball-joint is formed. The
The
connection with the other pipe is done by flanges F, F1 and screws.
tightening of the ball R towards the pipe walls is obtained by a packing L, L',
or the like. If the ball R is of large scale it may be constructed of cast-iron
and covered by a surface of copper. The intervals between the jointed ends of
the pipes G and G₁ is so measured that a tightening is warranted by means of
flange screws. For not diminishing the passage-section of the conduit the
pipe G may have a somewhat larger diameter D₁ next to the ball-joint.
In Fig. 2 a modification of the above described arrangement is shown.
Here the pipe A is enlarged to form a box A¹ which is connected with the
remaining part of the same by means of flanges and screws. In this box A¹ the
end of the other pipe B can slide, on which after insertion into the box A¹, the
ring R is mounted. The packing between the box A¹ and pipe B is effected in
like manner as in a piston packing by means of slotted rings K, K', K2, K³, or
any other method of tightening can likewise be used. The ring K is firmly
cemented to the pipe B. The thickness L2 of the box must be taken according
to the degree of expansion. A test-cock might be inserted at any point of the
pipe A.
Doted this 97th day of September 1899.
HERBERT HADDAN & Co.,
Agents to the Applicant.
I, HERMANN FRANK, of Schiffgraben 14, Hanover, in the Empire of Germany,
Engineer, do hereby declare the nature of this invention and in what manner
Price 8d |

page_text: the same is to be performed to be particularly described and ascertained in and
by the following statement:-
The present invention is for the purpose of providing a compensating piece for
pressure conducting pipes which eliminates the tension produced in every pipe
conduit with flange joints; it is especially of advantage in conduits in which
many curved pipes occur..
The drawings filed with my Provisional Specification represent the invention
in two forms of construction.
Referring to Fig. 1, the novel feature of the new element consists of a part G
which is curved at a right angle, at the shorter end of which a second pipe G¹ is
connected. The hollow space formed by the adjacent ends of the two pipes G
and G¹ has the shape of a ball and is filled out by a ball R preferably of brass,
the latter having a passage way like that of the pipe G. In such a way a ball
joint is formed. The connection with the outer pipe is done by flanges F FL
and screws or bolts. The tightening of the ball R against the pipe walls is
obtained by a packing L L or the like. If the ball R is of large size it may be
constructed of cast-iron and covered by a surface of copper. The interval s
between the jointed ends of the pipes G and G¹ is so measured that tightening
can be done by means of flange screws or bolts. In order not to diminish the
passage section of the conduit when the pipe joint is moved out of its normal
position the pipe G may have a somewhat larger diameter next to the ball joint.
In Fig. 2 a modification of the above described arrangement is shown.
Here the pipe A is enlarged to form a box A' which is connected with the
remaining part of the conduit by means of flanges and screws. In this box A¹
the end of the other pipe B can slide, on which after insertion into the
box A the ring R¹ is mounted. The packing between the box A¹ and pipe B
is effected in like manner as in a piston packing by means of split
rings K K K² K³. Any other method of tightening can likewise be
used. The ring K is firmly connected to the pipe B. The length of the
box A must be taken according to the limits of expansion required. A test-cock
might be inserted at any point of the pipe A.
Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed I declare that what
I claim is
1. An improved method of forming pipe joints for pipe conduits, characterized
by a ball joint, adapted to be tightened by means of flange screws or bolts, the
surface of the said ball joint being tightened against the walls of the pipe by
suitable packing thus preventing by its revolubility damage to the conduit,
substantially as described and illustrated.
2. A modification of the device described in Claim 1 consisting of a rectangular
or cylindrical box of greater diameter than the conduit in which the end of the
adjoining pipe can slide, being rendered tight by means of suitable packing,
substantially as described and illustrated.
Dated this 16th of November 1899.
HERBERT HADDAN & Co.,
Agents to Applicant,
18, Buckingham Street, Strand, W.C., London.