IMPROVEMENTS IN MACHINERY OR APPARATUS FOR ORNAMENTING METALLIC TUBES AND SIMILAR ARTICLES
Year: 1883

page_text: LETTERS PATENT to John Earle and George Bourne, both of Spring Hill
Birmingham, in the County of Warwick, Tube Manufacturers for an Invention
of IMPROVEMENTS IN MACHINERY OR APPARATUS FOR ORNAMENTING METALLIC
TUBES AND SIMILAR ARTICLES
COMPLETE SPECIFICATION filed by the said John Earle and George Bourne
at the Office of the Commissioners of Patents on the 4th September 1883.
JOHN EARLE and GEORGE BOURNE both of Spring Hill Birmingham in the
County of Warwick Tube Manufacturers IMPROVEMENTS IN MACHINERY OR
APPARATUS FOR ORNAMENTING METALLIC TUBES AND SIMILAR ARTICLES
Our invention has reference to machinery or apparatus for ornamenting brass or
other metal tubes, circular bars and the like.
For the purpose of ornamenting metallic tubes it has been customary to cause
them to pass between rolls having on their peripheries dies for impressing the
desired devices upon the tubes. By these means such designs only can be imparted
as can be produced by longitudinal movement of the tube with which is combined
movement in a rotary sense in the case of spiral tubes. Now our invention has
for object to enable designs such as belts as well as others to be impressed upon
metallic tubes, and for this purpose we employ dies that act as stampers in
conjunction with means for imparting to the tube to be operated upon movement
in a rotary sense as well as longitudinal movement.
Referring to the accompanying sheet of drawings; Fig. 1 shows a front elevation
of a machine according to our invention; Fig. 2 is a plan of the same; Fig. 3 is a
side elevation; Fig. 4 is an enlarged front elevation showing the stampers or dies
together with the guide blocks for same, also the lever for forcing the dies or
stampers in wards and outwards; Fig. 5 is a similar elevation showing in dotted
lines positions the lever and links assume in producing reciprocating movement of
the stampers or dies; Fig. 6 shows by way of example a design that may be
impressed upon a tube by this machine and is drawn full size; Fig. 7 is a face
view of one of the stampers or dies for producing the belts or lines around the

page_text: tubes; and Fig. 8 is a similar view of one of the stampers, or dies for impressing
circles on the tubes as represented between the belts in Fig. 6; Fig. 9 shows
another design that can be impressed on a tube or solid rod by this machine.
In the machine illustrated in the drawings four stampers or dies are shewn, but
to produce some designs it may be advantageous to use more or less than four,
according to the requirements of the case. The stampers or dies A, A, A, A, aro
securely fixed into holders or blocks, B, B, B, B, which are held and guided in a
disc or fixed boss. Each holder or block B is (at the opposite end to that at which
the stampers or dies are fixed) formed with a recess or slot into which one end of a
short link C is pivotted; the other end of this link is in each case connected to one
of four fixed blocks D D D D each capable of adjustment. These fixed blocks aro
held in a suitable fixing E somewhat resembling an ordinary excentric clip and rod
which forms a lever, This fixing or lever E is provided with adjusting screws D'D'
D' D' for regulating the depth of the indentation to be formed in the tube to be
operated upon. These adjusting screws D' D' D' D' are threaded into the fixing
or lever E and are locked after adjustment by means of lock nuts as shown in
Fig. 4.
The fixing or lever E has reciprocating motion imparted to it by means of a short
crank P and connecting rod G driven by suitable spur gearing as shown in Figs 1, 2,
and 3 of the drawings.
A bed plate His provided on which a travelling carriage I slides; this carriage
is provided with a suitable chuck H' in which the end of the tube to be ornamented
is placed and secured. The chuck may be of ordinary construction, with a set
Berew, or of the kind known as a universal chuck. Longitudinal motion is given
to the carriage by means of an endless chain, which receives its motion from a
ratchet wheel and lever J worked from the first motion shaft K by means of a
crank L. A train of change wheels is provided at the end of bed plate H for
regulating the extent which the tube is to be drawn between the stampers or dies
at each operation. Intermittent rotary motion is also imparted to the tube under
treatment by the same ratchet wheel and lever J by which a shaft M is rotated.
A pair of spur wheels N working on the carriage I operate the chuck H' in a
rotary sense; thus there is given transverse and longitudinal motion to the tubo
to be ornamented. The carriage I can be readily disconnected and stopped by
raising the catch pin O. The stampers B as shewn at Fig. 5 receive simultaneous
reciprocating motion by movement of the fixing E when worked by the crank L
from 1 to 2. By the movement of the said fixing E to 1 and 2 a proportionate
,travel is given to the blocks D, 1' and 2¹, as shewn by the dotted lines, thereby
causing forward and backward movement of the stampers B which carry the dies.
A for impressing the devices on the tubes to be ornamented. To prevent the tube
from collapsing or becoming deformed under tho action of the dies we insert a plug.
or mandril in it at that place and maintain this plug or mandril in position by a rod
passing down the tube
It will be evident that a great variety of ornamental designs may be produced
with this machine by using differently formed dies and that transverse and conjugate
designs of belts, dashes dots et cetera may be produced by the alteration of the
relative speeds of tube and stampers or dies.
Having thus described the nature of our said invention and in what manner tho
same is to be performed we would have it understood that what we believe to be
novel and original and therefore claim as our invention in machinery or apparatus
,for ornamenting metallic tubes and similar articles is-
1. The use of stampers or dies to which reciprocating movement is imparted as
above set forth in conjunction with means for moving the article to be ornamented
longitudinally after each stamping or impression substantially as described with
reference to the drawings
2. The arrangement substantially as described for operating the stampers or dies.
3. In a machine for ornamenting metallic articles such as tubes the combination
with stampers or dies of mechanism for imparting to the article under operation

page_text: intermittent movement in a rotary sense and longitudinal travel capable of
adjustment for different designs substantially as described
4 The combination of parts constituting the improved machine constructed
arranged and operating as described and shewn for the purpose specified.
In witness whereof we the said John Earle and George Bourne have hereunto
set our hands and seals this thirtieth day of August in the year of Our Lord
one thousand eight hundred and eighty three
SATELT
JOHN BARLE
(L.D.)
GEORGE BOURNE (L.S.)