Improvements in Swageing Metallic Shapes by Means of Rolls
Year: 1888

page_text: Date of Application, 13th June, 1888
Specification Accepted, 5th Oct,
1888
rennsylvania, United States of America, Engineer J
Improvements in Swageing Metallic Shapes by Means of Rolls
I,GFORGI THOMAS HYDE of 4 Little Moorfields in the City of London Consulting
Engineer do hereby declare the nature of this invention and in whit manner
the samic is to be performed, to be particularly described and ascertained in and by
the following statement
-
This invention relates to the method of and apparatus for swageing forms of met il
in dies formed in or inserted on rolls and has for its object the cheap and expeditious
production of metallic articles having differing forms of cross section in different parts
of their length and of greater length than the circumference of rolls of practicable
diameters for convenient or useful operation
To effect this result this invention consists in arranging the opposing dies or
cavities in the rolls in a helical direction so that the bars or other articles, as they
are passed between the rolls and are swaged, move in the direction of the length of
the roll
This invention also embraces some minor details for adjusting the dies or rolls, to
different dimensions of work as shown in the annexed drawing and hereinafter
described and claimed
Referring to the drawing, Figure 1 shows front elevation of a pan of tolls
embodying this invention
Figure 2 shows a side or end elevation thereof
Figure 3 shows a front elevation of a modified form thereof
Figure 4 shows an end view of the rolls shown in figure 3
Figure 5 shows another modification in the form of the roll
Figures 67 and 8 show separately the parts of the roll shown in Figure 5 and
Figures 9 and 10) respectively show the form of work produced by the rolls shown
in Figs 1 and 3
The same letter and ordinals indicate the same parts in the several figures
A and A' are the housings or frames supporting the bearings B and B' in which
the journals C and C¹ of the rolls D and D¹ turn
In the rolls shown in Figures 1 and 2 grooves or cavities E and E¹ conforming
to the shape of the intended metallic articles are excavated in a helical direction, the
helix E in the upper roll D being in the direction of a left handed screw thread and
the helical groove E in the lower roll D' in the direction of a right handed screw

page_text: thread the helical grooves or cavities E and E¹ should be of equal pitch so that
throughout the rotation of both rolls at equal velocities the grooves End E' shill
match or coincide in their margins at the line of contact with each other
In operation the rolls D and D' are rotated continuously by gearing in the usual
manner
The bar of ductile metal to be shaped is reduced approximately to the dimensions
which which it should have when finished and is presented to the rolls in line oblique
to the frame of the axis of the rolls D and D' in a tangenti il direction to the helical
grooves E and E¹ near the right end of the rolls and entering the grooves E and E¹ is
swaged by the rolls into the combined form of the cavities E and E moving during the
operation toward the left end of the rolls whence it is discharged
The shape of the cavities E and E¹ in the rolls D and D' shown in Figure 2
produces the railway bar or rail having spliced or fished ends for uniting it with other
similar bars or rails
Referring to Figures 3 and 4 in the rolls D and D¹ are made with the cavities or
recesses Fard F¹ into which are inserted removable dies G and G' which arrangement
furnishes a means of adjusting to varying requirements of dimensions and forms of
work and for corrections and compensations for wear without incurring the cost of
idditional rolls and the labour of removing and replacing them
The form of the cavities E and E' in the dies G and Gind the rolls D and D'
shown in Figures 3 and 4 produce the link or cyo bar shown in Figure 10, the mode
of operating this form of rolls is similar to that described in referring to Figures 1
and 2 the only difference being that the dios are inserted removably and by incins of
liners or packing Hind keys are adjusted therein
Referring to Figure 5 the roll D is made of pirts consisting of a centre or body K
(shown separately in Figure 6) and removable rings or zones Land M in which the
helical grooves or swiges E and El ire cut so that when assembled they form the
entire swageing die of greater or less length according to the number of zones or
rings employed, one of the terminal zones L is shown separately in Figure 7 and one
of the intermediate zones M is shown in Figure 8, when the parts are assembled these
rolls are operated as those previously described
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1 declare that what I
clum is
First The improved method of swage-rolling metallic shapes by passing such
articles between rolls diagonally to the plane of their axes into helical swages formed
in said rolls substantially as herein described and set forth
Second-The improved rolling swages consisting of rolls fitted in pairs with opposing
holical swages formed therein substantially as heroin set forth and described
Third-The improved swaging rolls consisting of a pair of opposing rolls provided
with helical opposing recesses formed therein and civities at the terminations of said
helical recesses adapted to receive removable and adjustable dics substantially as herein
set forth and described
Fourth Helical swageing rolls consisting of a central body or shaft and removable
zones having helical dies or grooves formed thercin and arranged to form when
assembled, dies for varying lengths of work substantially as herein described and set
forth
Dat the 10th T 1000