Improvements in the Arrangement and Construction ΟΙ Machinery for Producing Scarfed or Bevilled Strip for the Manufacture of Lap Welded Tubes.
Year: 1885

page_text: Improvements in the
Arrangement
and Construction ΟΙ
Machinery for Producing Scarfed or Bevilled Strip for
the Manufacture of Lap Welded Tubes.
We, JOSEPH HOWELL BULLOCK of The Sycamores, Pelsall near Walsall in the
county of Stafford, Ironworks manager, and THOMAS BROWN of 167 Wednesbury
Road Walsall in the county of Stafford Rollturner, do hereby declare the nature of
our invention for IMPROVEMENTS IN THE ARRANGEMENT AND CONSTRUCTION OF
MACHINERY FOR PRODUCING SCARFED OR BEVILLED STRIP FOR THE MANUFACTURE
OF LAP WELDED TUBES to be as follows:-
Our invention for improvements in the arrangement and construction of
machinery for producing scarfed or bevilled strip for the manufacture of lap
welded tubes refers principally to the construction of rolls, movable guides, and
scrapers for the purpose of removing the scale from the strip.
By the ordinary method of manufacture now prevailing the bevil on the edges
is produced by drawing the strip through cutters fixed at the desired angle, which
shave away the iron from the full thickness of the strip to a feather edge, thereby
involving considerable labour, wear and tear of machinery and tools and a large
percentage of waste, besides rendering the iron more liable to become a prey to the
heat & oxidation in the process of welding by removing the first skin.
We will now declare the nature of our invention as applied to strip for
iron tubes.
By our improved process the rolling of bevil edged strip iron can be carried on
with efficiency, facility and economy.
The first part of our invention relates to movable guides in conjunction with
rolls, such guides being made and adjusted in such a manner that they will readily
receive the strip and conduct it to the rolls, at the same time holding the strip
firmly in the required position thereby securing regularity in the passage of the
strip through the rolls.
The guides have an advancing and a receding motion, which can be regulated
at will.
In working our improved guides the strip is allowed to enter freely, and by the
action of the scrapers, or their equivalent, the strip is forced into position between

page_text: "
the adjusted guides care being taken that the end of the strip protrudes beyond the
ends of the guides sufficiently for the rolls to take hold upon it, and so draw it
through immediately the advancing motion is given to the guides.
These improved guides are absolutely necessary to the perfect production of bevil
edged strip by our first process, inasmuch as, to ensure regularity the strip must be
delivered exactly in front of the bevilling hole in the rolls and tightly griped on
the edges by the guides, and pressed down on the surface by the scrapers.
Another part of our invention consists in finishing the bevil edged strip in a
pair of close grooved rolls, instead of finishing the strip in the ordinary plain pass
rolls.
Our improvements further consist in making bevil edged strip by first rolling a
strip or plate of any desired width, and then passing the said strip or plate through
a pair of rolls provided with fillets, the functions of the said fillets being to impart
the bevil shaped edges at one pass to such a number of strips as the breadth will
admit of, after which we propose to divide them into separate strips by revolving
shears, or some other mechanical appliance, which division may be readily accom-
plished in consequence of so little cutting being necessary after the strip has left
the fillets.
Our improvements further consist in rolling strip with a lumped, or thickened,
edge, the same being bevilled, in order that when the two scarves or bevils are
brought together it will effect the better consolidation of the weld, or seam, when
the strip is being closed into a tube.
Our improvements also embrace the dishing, or partial skelping of strip, at one
and the same time with the operation of bevilling, by means of close grooved rolls.
Our improved scrapers consist, preferably, of an arrangement of levers and
weights attached to the scraper frame and slides, the said levers being worked,
automatically, from the machinery, or independently, as may be desired.
The application of our improvements differs in no essential respect from the
foregoing when rolling any other metal.

page_text: the Manufacture of Lap Welded Tubes.
We JOSEPH HOWELL BULLOCK of the Sycamores, Pelsall near Walsall in the
County of Stafford, Ironworks Manager and THOMAS BROWN of 167 Wednesbury
Road, Walsall in the County of Stafford Rollturner, do hereby declare the nature
of our Invention for " IMPROVEMENTS IN THE ARRANGEMENT AND CONSTRUCTION
OF MACHINERY FOR PRODUCING SCARFED OR BEVILLED STRIP FOR THE MANU-
FACTURE OF LAP WELDED TUBES" and in what manner the same is to be performed
to be particularly described and ascertained in and by the following statement:-
Our invention for improvements in the arrangement and construction of
machinery for producing scarfed or bevilled strip for the manufacture of lap
welded tubes, refers principally to the construction of rolls, movable guides and
scrapers for the purpose of removing the scale from the strip. By the ordinary
method of manufacture now prevailing, the bevil on the edges is produced by
drawing the strip through cutters fixed at the desired angle which shave away
the iron from the full thickness of the strip to a feather edge thereby involving
considerable labour wear and tear of machinery and tools and a large percentage
of waste besides rendering the iron more liable to become a prey to the heat and
oxidation in the process of welding by removing the first skin.
We will now declare the nature of our invention as applied to strip for
iron tubes.
By our improved machinery the rolling of bevil edged strip iron can be carried
on with efficiency, facility and economy.
The first part of our invention relates to movable guides in conjunction with
rolls, such guides being made and adjusted in such a manner that they will readily
receive the strip and conduct it to the rolls at the same time holding the strip
firmly in the required position thereby securing regularity in the passage of the
strip through the rolls.
The guides have an advancing motion and a receding motion which can be
regulated at will.
In working our improved guides the strip is allowed to enter freely and by the
action of the scrapers, or their equivalent, the strip is forced into position between
the adjusted guides, care being taken that the end of the strip protrudes beyond
the ends of the guides sufficiently for the rolls to take hold upon it and so draw it
through immediately the advancing motion is given to the guides.
These improved guides are absolutely necessary to the perfect production of
bevil edged strip by the preliminary rolling inasmuch as to ensure regularity the
strip must be delivered exactly in front of the bevilling hole in the rolls and
tightly griped on the edges by the guides and pressed down on the surface by the
scrapers.

page_text: Another part of our invention consists in finishing the bevil edged strip in a
pair of close grooved rolls instead of finishing the strip in the ordinary plain pass
rolls.
Our improvements further consist in making bevil edged strip by first rolling a
strip or plate of any desired width and then passing the said strip or plate through
a pair of rolls provided with fillets the functions of the said fillets being to impart
the bevil shaped edges at one pass to such a number of strips as the breadth will
admit of, after which we propose to divide them into separate strips by revolving
shears or some other mechanical appliance which division may be readily accom-
plished in consequence of so little cutting being necessary after the strip has left
the fillets.
Our improvements further consist in rolling strip with a lumped or thickened
edge the same being bevilled in order that when the two scarves or bevils are
brought together it will effect the better consolidation of the weld or seam when
the strip is being closed into a tube.
Our improvements also embrace the dishing or partial skelping of strip at one
and the same time with the operation of bevilling by means of close grooved rolls.
Our improved scrapers consist preferably of an arrangement of levers and
.weights attached to the scraper frame and slides, the said levers being worked
automatically from the machinery or independently as may be desired..
The application of our improvements differs in no essential respect from the
foregoing when rolling any metal other than iron.
We will now proceed to describe with reference to the accompanying Drawing
the manner in which our invention is to be performed.
Figure 1 represents a front elevation of a pair of rolls provided with our
improved slide and adjustable guides; Figure 2 is a plan of the same; Figure 3 is
a cross section of the rolls and appliances and Figure 4 an end elevation of the
same; Figure 5 represents in end elevation and Figure 6 in side elevation the
adjustable guide plate and guides drawn to a larger scale than in Figures 1, 2
and 3.
In Figure 1 the releasing lever and its attachment are omitted and in Figure 2
the eccentric and its lever are omitted.
The same letters of reference indicate the same parts in Figures 1. 2. 3. 4 and 5.
a, a are the two standards, frames or holsters of the rolls; b and c are the two
rolls for effecting the preliminary rolling operation; d is an eccentric (or a crank
or cam may be employed) keyed or secured to the shaft or wobbler of the bottom
roll c and its forked or projecting eye is connected to one end of the main lever f
(see Figure 4) which lever turns freely on the shaft or spindle g; h, h are bell crank
or bent levers (see Figure 3) keyed or secured to the said spindle g. These levers
carry at the ends of their short vertical arms a moveable guide plate or bar upon
which are attached two adjustable guides, k (see Figures 5 and 6) the said guides
being securely held in any desired position upon the plate by screwed strap bolts
and nuts m, m. The guide plate works between the projections y, y on the
standards a, a. The guides, are inade preferably of a tapering form as seen in
Figure 6. The long horizontal arms of the bent levers h, h carry in suitably
constructed pockets or holders, a top scraper bar i;, or the said holders may be
At the extreme end of the bent
arranged to carry a roller instead of a bar.
levers, are heavy weights n, n turned outside the entrance to the rolls; p is a
horizontal bracket or frame secured to the standards a the said bracket being
provided with a long groove or grooves for the guides e, e to work in. The said
bracket is also provided with a groove or channel for holding the bottom
scraper o; w is the releasing lever or catch turning freely on the pin or centre
and 8 is a pin or stud (see Figure 4) to serve as a fulcrum for a hand bar to rest
against for pressing the short end of the lever w down as hereinafter described; t is
a hand lever turning upon the pin or centre u near the end of the upper arm of the
main lever f; x is a lever or arin keyed upon the shaft g and arranged to allow the

page_text: hand levert to take hold of the lever and also for the releasing lever w to rest
against it.
We will now describe the method of working the appliances.
The bar or strip of iron or other metal to be rolled is first placed between the
outer guides e, e and passed over the bottom scraper o and between the guides k, k.
The bar or strip being in this position the short arm of the releasing lever wis
depressed so as to release the weighted levers h, h the long arms of which cause the
top scraper i to descend upon the strip and the short arms of the said levers to
advance the slide upon which the strip is supported. The strip is thereby made
to enter between the rolls b, c and is drawn forward by the said rolls in the
ordinary way.
As the strip passes between the scrapers o and i all scale adhering
to the upper and lower surfaces of the said strip is removed by the action of the
said scrapers.
It must be understood that when the scraper i is in the lowered position Figure 3
and is pressing upon the strip about to enter the rolls there is no tendency in the
said scraper to rise by reason of the reciprocating motion of the lever f which is
being moved by the eccentric d as the said lever f turns freely upon the shaft g
which consequently does not partake of its motion. But when the hand lever t is
raised and its short end depressed and caused to come in front of the lever x the
return or backward motion of the lever f carries with fit the said lever @ which
being keyed or secured to the spindle g causes the scraper i to be lifted up and
the slide to be withdrawn from the rolls. When the lever x has been withdrawn
a short distance (the releasing lever wresting during the whole of the travel upon
the said lever ) it comes to the shoulder w³ of the releasing lever and when this
shoulder is reached the attendant removes the hand lever t from the front of the
lever x thus allowing it to rest against the shoulder w² where it remains until the
next bar is ready for passing between the rolls. Thus, it will be understood that.
the lever connected with the eccentric d is quite free to move either with or
without the scraper and slide by the movement of the hand lever t. To release
the lever and permit the scraper i to descend into the position Figure 3 a rod or,
bar is placed over the short end of the lever wand made to come under the pin or
fulcrum bolt & so that when the free end of the bar or rod is depressed the end of
the lever wis raised and removed from contact with the lever and the weighted
levers h, h cause the guides and slide to advance with the strip as hereinbefore
described.
After the strip has passed through the ordinary rolls represented in Figures 1. 2. 3
and 4 we cause the said strip to pass through our improved bevilling rolls repre-
sented in Figure 7 using in conjunction with the said bevilling rolls our improved
guides and scrapers herein before described. The pair of bevilling rolls b, c Figure 7
by which the strip is finished and bevilled have close grooves marked c³ in them
the acting parts of the top roll b being plain and the bottom roll c having inclined
collars for producing the bevil edges on the strip passed through the rolls as will
be understood by an examination of Figure 7.
•
Figure 8 represents in section a bevil edged strip which has been fashioned by
the rolls Figure 7 and Figure 9 represents a bevil edged strip rolled in rolls the
grooves of which are so shaped that they thicken the edges of the strip near the
bevils for increasing the metal at the said edges and ensuring a better consolidation
of the weld.
Figure 10 represents the pair of rolls which we employ for forming a connected
set of bevilled strips which strips are afterwards divided.
The said pair of rolls consists of a plain cylindrical top roll b and a bottom
roll c provided with fillets or divisions c³, chaving such figures as will impart to
the wide plate passed through the rolls the required bevils at different parts of the
plate. The position of the rolls may be inverted, that is, the plain roll may be the
bottom roll and the filleted roll the top roll. The several connected bevilled strips
thus made from one plate are connected together by thin fins or webs and are
separated by shearing, cutting or other mechanical operation.

page_text: Figure 11 represents the pair of rolls which we employ for producing at one
operation from plain strips, skelped or semi circular strips having their edges
bevilled and Figures 12 and 13 show enlarged sections of the iron strips rolled by
the use of curved rolls according to our invention.
Having now particularly described and ascertained the nature of our inven-
tion and the manner in which the same is to be performed we declare that what
we claim is
First. The combination with rolling machinery used in the production of
scarfed or bevilled strip for the manufacture of lap welded tubes, of the scrapers
and guides and the mechanism by which the said guides are advanced to 'and
withdrawn from the rolls and the top scraper brought into position for use and
removed and held out of action substantially as herein before described and illus-
trated in Figures 1. 2. 3. 4. 5 and 6 of the accompanying Drawing, the said
scrapers and guides and mechanism being. used in combination with rolling
machinery for effecting the preliminary rolling of the strip as well as in combination
with rolling machinery for effecting the bevilling of the said strip.
Secondly. The construction of the close grooved rolls for producing scarfed or
bevilled strip for the manufacture of lap welded tubes herein before described and
illustrated in Figure 7 of the accompanying Drawing.
Thirdly. The construction of rolls for producing scarfed or bevilled strip having
the sectional figure represented in Figure 9 of the drawing; that is, having lumps
or thickened parts near the bevilled edges of the strip to improve the weld of the
tube made from the strip.
Fourthly. The construction of the rolls herein before described and illustrated
in Figure 10 of the accompanying Drawing for producing a set of connected scarfed
or bevilled strips to be afterwards separated into single strips.
Lastly. The construction of the rolls herein before described and illustrated in
Figure 11 of the accompanying Drawing for effecting at one operation the bevilling
of the edges of the strip and skelping or dishing the bevilled strip.
Dated this sixth day of January 1886.