Improvements in Apparatus for Bending or Straightening Structural Iron, Pipes and the like.
Year: 1898

page_text: Date of Application, 5th July, 1898-Accepted, 5th Oct., 1899
COMPLETE SPECIFICATION.
Improvements in Apparatus for Bending or Straightening Structural
Iron, Pipes and the like.
I, CHARLES WEBER, of 4602, Plummer Street, in the City of Pittsburg, County
of Allegheny, and State of Pennsylvania, United States of America, Machinist,
do hereby declare the nature of this invention, and in what manner the same
is to be performed, to be particularly described and ascertained, in and by the
following statement:—
This invention relates to certain new and useful improvements in rolls for
bending structural iron, pipes and the like, and has for its object to provide
an improved set of rolls whereby any desired curvature of structural iron or
like material, may be obtained.
The invention further aims to construct a set of rolls for the above purpose and
particularly adapted to be used for the cold rolling of such material, and it
consists in providing a series of adjustable collars or rolls mounted upon one
or more of the roll shafts, and being of the same diameter.
The invention further aims to provide means for easily and quickly changing
the position of the collars or rolls upon the shafts, and for securing the same
in the desired position.
Another object is to provide means whereby the rolls or collars may be readily
adjusted to conform to the different thicknesses of metal without necessitating
the changing of the rolls.
It is also an object of my invention to provide movable guides at the front
and rear of the rolls, which are to be engaged by the material passing through
the rolls, and which serve to guide and keep the material in a perfectly true
position while being bent.
It is a further object of my invention to provide a hold down in front of the
rolls, which after the material has passed through the rolls, and a desired cur-
vature has been obtained at one point of the material, may be adjusted against
the material to prevent the same radius or curvature being given to the entire
strip of material.
It is also an object of my invention to provide convenient means for adjusting.
the rolls, the hold-down or straightening shaft, and the guides, both at the
front and rear of the rolls.
These guides are mounted in independent housings, which are adjustable length-
wise of the rolls in order to bring the guides to any desired position.
Briefly stated therefor, the invention aims to construct a set of rolls that may
be easily adjusted to bend various thicknesses of structural iron and like material,
and furthermore to provide mechanism that will be strong, durable, and com-
paratively inexpensive to manufacture.
With the above and other objects in view, the invention finally consists in the
novel construction, combination and arrangement of parts, hereinafter more fully
described, illustrated in the accompanying drawings, and particularly pointed
out in the claims.

page_text: Fig. 1, is a side view of a set of rolls or mills, constructed in accordance with
my invention.
Fig. 2, is a front view of the same, partly in section.
Fig. 2, is a detail view of the guides for the material being rolled.
Figs. 2 and 2° are side and end elevations of the grooved. rolls for coiling
pipes.
Fig. 3, is a detail end view of one of the split rings or auxiliary collars which
is secured to the adjustable collars.
Fig. 4, is a detail end view of one of the adjustable collars with the split ring
secured thereto.
Fig. 5, is a perspective view of one of the fastening bolts by means of which
the adjustable housings are secured in position.
Fig. 6, is a top plan view of one pair of the guides, showing the adjusting
means of their housings, and also a part of the stationary housings.
Fig. 7, is a sectional view of a portion of the bed plate, showing the adjustable
housing in position.
Fig. 8, is a perspective view of one of the guide carriers..
Fig. 9, is a like view of the removable plate by means of which said guide
carriers are secured within their housings.
Fig. 10, is a plan view of one of the guides showing the same in its carrier,
the latter being in longitudinal section.
Fig. 11, is a transverse sectional view on line x-x Fig. 12.
Fig. 12, is a side elevation of a pair of rolls equipped with adjustable collars
of a modified form of construction.
Fig. 13, is a similar view showing the application of the removable collars,
to the upper shaft with the lower shaft or shafts plain.
Figs. 14, 15, 16, 17 and 18, are enlarged detail views of the removable collars.
Fig. 19, is a front view of a set of housings, showing the adjustable collars
mounted on the upper roll shaft.
Fig. 20, is a longitudinal sectional view of a portion of the roll and shaft
showing the adjustable collars secured thereon.
Fig. 21, is an end view of the same.
Fig. 22, is a cross-sectional view of one of the adjustable collars.
Fig. 23, is a cross sectional view of the shaft and one of the collars.
Fig. 24, is a perspective view of the key employed for locking or wedging the
collar in the desired position.
To put my invention into practice, I provide two stationary housings 1, which
may be of any desired form of construction.
Within these housings are formed the guide ways, 2, 3, and 4 for the reception
of the journal boxes 5, 6, and 7, respectively. The journal boxes 6, receive the
ends of the upper screw threaded shaft 8; the journal boxes 7 receive the ends
of the shaft 10, arranged in the housing at the rear of the shaft 9, the latter being
journalled in the housing below, and in alignment with the upper shaft 8.
Mounted upon both the upper and lower shafts, 8 and 9 respectively are a
series of adjustable collars 11, which are adapted to have secured to either one
or both sides thereof, a ring or auxiliary collar 12. This auxiliary collar, for
the purpose of being secured, is made in two or more sections, but preferably
the former, as it would considerably simplify the construction thereof. These
sections are neatly fitted together, and are or may be secured to the collars 11,
by screws 14, or other suitable means. In practice, I prefer to place these
rings or auxiliary collars 12, upon the side of the collars 11, where they may be
retained by screws or other suitable means, and by securing the collars 11, and
the auxiliary collars 12, together, I make the auxiliary collars interchangeable,
so that they will fit neatly upon any of the adjustable collars 11. This is done;
for the reason that the auxiliary collars 12, are made of different diameters, so
that they may be changed to any collar desired, and providing thereby a means
for rolling different sizes of structural iron or the like without changing of the

page_text: shafts or rolls. The collars 11 and the auxiliary collars 12 are each provided
on their inner face, with a series of notches or grooves 15, which are adapted to
receive the key 16, engaging therein, and in a groove provided therefor in the
shafts. This means is shown as a convenient one for locking the collars 11, in
a desired position upon the shafts, though of course, other equivalent fastening
means may be employed.
The shafts 8 and 10, as before stated are adjustable vertically, this being
shown in the drawing as accomplished by means of screws 16 and 17, engaging
through the housing, and being connected to the journal boxes 6 and 7. The
screw 16, is adjusted from above, and the screw 17, from underneath. It will
of course be observed that these adjusting screws are shown independent of
each other, they may be readily connected together by mounting bevel gears on
top of the same, and connecting them by a shaft carrying oppositely disposed
bevel gears to engage the aforestated ones; such a construction is however old
in the art and I do not claim same as a part of my invention. The lower roll
shaft 9, not being adjustable, may be journaled direct into the housings 1.
In the journal boxes 5, which are arranged in the guide ways 2, I mount a
shaft 18, which may be termed a straightening shaft or hold down, and is adjusted
by means of the screws 19, operating in the housings, and engaging in the
journal boxes 5.
For the purpose of guiding the material, both while passing into the rolls,
in the direction indicated by the arrow in Fig. 1 and while emerging therefrom,
I provide a pair of guides at the front, and a like pair of guides at the rear
of the rolls. The guides at the front of the rolls, are mounted in two
housings 20, 20, which rest upon a slotted bed plate 21, and are secured in the
desired position thereon, by forming the base of the housings with outwardly
extending lugs or flanges 22, which are apertured to receive the securing bolts 23.
These securing bolts are provided with a double head, the portion 24, thereof
being smaller than the portion 25, said portion 24, being adapted to slide in
the slot of the bed plate, and the portion 25, being adapted to engage the
underneath face of the bed plate; the bolt 23, may be fastened by means of
ordinary nuts 26.
The carriers for the front guide are arranged in the housings 20, and consist
of a block 27, Figs. 8 and 10, having projecting flanges 28, for engagement with
the inner face of the housing 20, to hold the carriers in position. Formed
integral with the blocks 27, or attached thereto, is a hollow shaft 29, screw
threaded at its outer end to receive the adjusting screw 30. The guide com-
prises a shaft 31, the one end of which fits within the block 27 and shank 29,
and the other end of which is formed with jaws 32, within which is pivotally
secured the roller 33, see Fig. 2ª. The end of the shaft 31, which engages in
the carrier, may, if desired, be connected to the inner end of the screw 30,
although such construction is not necessary, as the abutment of this screw
against the inner end of the shaft will force the same outwardly of the carrier
without such connection. The movement of the shaft 31, is limited within this
carrier by the shoulder 34, formed within the shank 29, at the intersection with
the screw threaded portion thereof. In order to allow the placing of these carriers
in position, I construct the same with a detachable plate 35, whicn is of the
same length as the block 27, when measured from the outside to the outside of
its flanges, and which fits neatly upon the shoulder 36, formed on the inner face
of the said block. After the block has been placed in the housing with the
flanges 28, against the inner face thereof, the plate 35, is placed in its position,
and engages the outer face of the housings, thus holding the carrier in position.
When the guides have been adjusted to the desired position, the shafts 31, may
be held rigid by means of a set screw 37, engaging through the shank 29 of
the carrier.
At the rear of the rolls, I provide a bed plate 38, which is of the same form
and construction as the bed plate 21, and I mount upon this bed plate, the

page_text: two movable standards 39, which with the exception of their being slightly
inclined towards the rolls, are of the same form as the movable standards 20.
In these standards 39, are mounted the carriers for the rear guides, which are
of the same construction as the front guides, and are adjusted in the same
manner, the same reference numerals being used for these as well as for the
fastening means for these rear standards, all of which has been heretofore fully
described for the front standards.
When the fastening bolts 23, are loosened, the front standards 20, or the rear
standards 39, may be moved longitudinally of the rolls, by means of the screw
threaded shafts 40, which are journalled in the standards 41, mounted upon
the bed plates 21, and 38, and engage through the screw threaded lugs 42, formed
therefor on both the front and rear standards; these shafts 40, may be operated by
hand wheel 43, or other suitable means.
The rear standards 39, are preferably set at the slight angle shown in order
that the guides may be in proper alignment with the material being fed into the
rolls.
The hold down or straightening shaft 18, is provided for the purpose of forming
a portion of the bar straight, and another portion thereof at a predetermined
radius or curvature, as it will be observed that an angle iron or other piece
of like material could be inserted in the rolls, and a portion thereof curved to a
desired radius, at which time the hold down or straightening shaft 18, could
'be lowered against the bar of material passing through the rolls, so as to hold the
same down, and decrease the radius being imparted to the bar in its rolling.
In operation the bar is placed between a pair of rolls or collars on the upper
shaft 8, and lower shaft 9, and rests upon drive roll 10; the guides at the rear
of the rolls are then adjusted into contact with the bar, to guide and support
the same.
The guide wheels 33 at the front of the rolls are adjusted vertically
to receive the end of bar as it comes from the rolls. The straightening or hold
down shaft 18, is adjusted by its screw 19, so as to bear against the upper face of
bar, which relieves the lift of the bar against the guide wheels 33.
This partially explains the use of this hold-down shaft 18, but further, a
portion of the bar could be passed through the rolls, and curved to a certain
radius when the hold-down 18, was elevated, then this holddown lowered into
contact with the bar, and the radius of curvature of the remainder of the bar
passing through the rolls decreased.
The upper roll shaft 8, is screw threaded and has the collars 11, mounted
thereon; the lower roll shaft 9, is screw threaded, and has collars mounted thereon
same as upper shaft 8, with which it is journalled in the housing in
alignment.
The roll shaft 10, is journalled in the housing at the rear of the shaft,
and it may be a plain ordinary drive roll shaft, adjustable in the housing by
'the screws from underneath.
The collars or rolls are interiorly screw threaded, and are consequently screwed
onto the screw threaded shafts 8, and 9.
In Figs. 22 and 2° of the drawings, I have shown collars or rolls 44, mounted
upon one end of the screw threaded shafts 8 and 9 which extend beyond the
housing on the one side, each of which collars or rolls are provided with a
peripheral groove, and which may be employed for bending or coiling pipe, as
it will be observed that such material can be bent upon my improved rolls in
the same manner as structural iron.
The pipe is inserted between the two grooved wheels, wound over the top wheel,
the end being guided or conducted over said wheel by hand and as its end
reaches the passage between the two wheels 44, this end is bent outwardly by
hand or other suitable means to the side of the wheel, and as the pipe continues
to pass through the wheels, it is wound in spiral form as shown in Figs. 2b
and 2º.
By providing the auxiliary collars 12, of different diameters, and making the

page_text: same interchangeable, it will be observed that various sizes of T-Z- or other
form of structural iron or like material may be bent without requiring any
change of the adjustable collars or rolls, it only necessitating the adjustment of
the collars or rolls 11, upon the screw threaded shafts, and the placing of the
auxiliary collars in position so that the two will accommodate the size and style
of material being bent.
I
Where one size and style of material is being bent at one point of the rolls,
and another set of the adjustable rolls or collars and the auxiliary collars are
set for a different form and size of material, it will be observed that the guides
both at the front and at the rear may be moved so as to bring the same in
position for the latter named material, by simply loosening the housings 20,
and 39, and adjusting the same in the manner heretofore described.
In Figs. 11, 12, 13, 14, 15, 16, 17, & 18, I have shown a form of collar
which may be applied and secured to an ordinary smooth roll. In these views
just referred to, 45, indicates the housings in which the rolls 46, 46' are mounted.
The said housings are or may be provided with guides 47, for the bearing blocks
in which the roll 46 is journalled; this is for the purpose of guiding the rolls
when the same are being adjusted vertically. 48, is an adjusting screw, which
is or may be operated by the lever 49, or these rolls may be operated in the
same manner as heretofore described for the adjusting screws 16 & 17.
The numeral 50, indicates the collars which are mounted on the smooth rolls,
and which are made in two sections 51, 511, the section 51, being provided
with a recess 52, to receive the tenons 53, of the section 511; for the purpose of
securing the two sections together, I provide an aperture 54, through the ends
of the sections 51, and through the tenons 53, to receive a pin or like device.
These collars are also provided with apertures 55, extending radially, through
the same, said apertures being adapted to receive bolts 56, which are counter-
sunk in the periphery of the collar as shown in Fig. 17, of the drawings. The
surface of the rolls are provided with indentations, 57, to receive the ends of
the bolts 56. Fig. 15 shows one section of a collar having a recess 52 at one
end and a tenon 53 at the other.
Referring to Fig. 11, of the drawings, the lower set of shafts are provided with
the collars and Fig. 13, I have shown the mechanism reversed, viz., the upper
shaft being provided with a collar and the lower set of shafts having a smooth
surface.
It will be observed that T-iron may readily be bent with such a construction
of rolls without changing the position of the collars or rolls upon the shafts.
It will also be observed that these collars or rolls may be easily applied and
removed from the shafts when desired, and that when the roll or collar or collars
are in position, they will be firmly secured to the shaft, so that lateral dis-
placement thereof will be impossible.
In Fig. 19, I show the roll 58, suitably journalled in the housing 45, and
reduced in size for a portion of its length. This reduced portion 59, is screw
threaded, and has mounted thereon the adjustable collars 60, which are of the
same diameter as the roll 58. The reduced portion of the roll is formed with a
longitudinally extending groove 61, to receive the key 16, engaging therein and
in the grooves 15, provided therefor on the inner face of the collars 60, a number
of these grooves being provided in the collar to permit the adjustment of the
same. In this construction, I may form one of the collars 60, with a sleeve
nut 62, the collar proper being of the same diameter as the other collar, and
the sleeve nut forming the journal within the housing.
In this Fig. 19, of the drawings, the rolls are shown so as to bend certain sizes
of angle iron, and it will be observed that the same form of roll may be employed
for I-beams, T-iron, and various other forms of material of a like nature used
for structural and other purposes. After the one collar 60, has been adjusted
to the desired position, the other collar may if desired be adjusted firmly against
the same, so as to give a solid roll between the adjustable collar and the adjacent

page_text: housing, and by the provisions of the series of key ways around the inner face
of the collar, the same may be readily adjusted so as to accommodate any thick-
ness of material, the fastening key being of course removed while the collar
is being adjusted, and inserted in the respective key way of the collar which
corresponds with the key way in the shaft or reduced portion of the roll.
In Fig. 19, I have shown the lower roll of the ordinary construction, though of
course for various forms of material, my improved form of roll, may be employed
for the lower as well as for the upper roll.
Having now particularly described and ascertained the nature of my said.
invention and in what manner the same is to be performed, I declare that what
I claim is:
1. In an apparatus for bending structural iron and the like, the combination
of the screw threaded shafts, adjustable collars or rolls mounted thereon,
auxiliary collars of less diameter than the adjustable collars secured to the
sides of the said adjustable collars, and means for securing the said collars,
substantially as herein shown and described.
2, In an apparatus of the class described, the combination of a set of screw
threaded shafts suitably secured in a housing, adjustable and auxiliary collars
secured to said shafts and suitable guides adjustably secured at the front and
rear of said shafts, substantially as herein set forth.
3, In an apparatus of the class described, the combination of an upper shaft
suitably secured in housings, a lower shaft secured in said housings in vertical
alignment with said upper shaft, collars and auxiliary collars mounted upon said,
shafts, and a hold down or straightening shaft journalled in the housings at
the front of the upper shaft, substantially as herein set forth.
4, In an apparatus for bending structural iron and the like, the combination
of a series of screw threaded shafts secured in a housing, said screw threaded
shafts extending outwardly on one side of the housing, and having suitably
secured thereon grooved collars or rolls, collars and auxiliary collars mounted on
said shafts, said auxiliary collars being of less diameter than the adjustable
collars and being interchangeable, and suitable means for securing the said
collars, substantially as shown and described.
5,-In an apparatus for bending structural iron and the like, the combination
of a housing having a bed plate secured thereto, a series of screw threaded shafts
suitably mounted in said housing, housings secured to the bed plate at the front
and rear of the screw threaded shafts, and adjustable guides carried by said
housings, substantially as herein shown and described.
6, In an apparatus for bending structural iron and the like, the combination
of a central housing having screw threaded shafts secured therein, a bed plate
secured to said central housing and extending outwardly on each side thereof, a
vertical housing secured to said bed plate at the front of the said central housing,
adjustable guides carried by said vertical housing, an inclined housing secured
to a bed plate at the rear of the shafts, and adjustable guides carried by said
inclined housing, substantially as herein shown and described.
7,-In an apparatus for bending structural iron and the like, the combination
of the screw threaded shafts, a hold down or straightening shaft, adjustable and
auxiliary collars secured on said screw threaded shafts, and suitable means for
securing said collars in the desired position, substantially as herein shown and
described.
8,-In an apparatus for bending structural iron and the like, the combination
of the screw threaded shafts, adjustable and auxiliary collars mounted on said
screw threaded shafts, a hold down or straightening shaft, and adjustable housings
carrying guides arranged at the front and rear of said screw threaded shafts,
substantially as herein shown and described.
9,-In an apparatus for hending structural iron and the like, the combination
of the housings having bed plates secured thereto and extending outwardly 'on

page_text: both sides thereof, a set of screw threaded shafts secured in said housings adjust-
able collars having auxiliary collars secured to the sides thereof and mounted on
said screw threaded shafts, and adjustable housings secured to the bed plate at
the front and rear of said shafts, substantially as herein shown and described.
10, In rolls for bending structural iron and the like, the combination of the
screw threaded shafts, adjustable and auxiliary collars mounted on said shafts,
and adjustable guides arranged at the front of said shafts substantially as herein
shown and described.
11, In rolls for bending structural iron and the like, the combination, of a
set of screw threaded shafts, adjustable and auxiliary collars mounted on said
shafts, and adjustable guides arranged at the rear of said shafts substantially as
herein shown and described.
12, In rolls for bending structural iron and the like, the combination of the
screw threaded shafts, adjustable and auxiliary collars mounted on said shafts,
and adjustable guides arranged at the front and rear of the said shafts, sub-
stantially as herein shown and described.
13, In rolls for bending structural iron and the like, the combination of
the screw threaded shafts, adjustable collars mounted on said shafts, auxiliary
collars mounted on the shafts and secured to the adjustable collars, and adjust-
able guides arranged at the front of the said shafts, substantially as herein shown
and described.
14, In rolls for bending structural iron and the like, the combination of the
screw threaded shafts, adjustable collars or rolls mounted on said shafts auxiliary
collars mounted on the shafts and secured to the said adjustable collars, and
adjustable guides arranged at the rear of said shafts, substantially as herein
shown and described.
15, In rolls for bending structural iron and the like, the combination of the
screw threaded shafts, adjustable collars mounted on said shafts, auxiliary collars
mounted on the shafts and secured to the adjustable collars, and adjustable
guides arranged at the front and at the rear of said shafts, substantially as herein
shown and described.
16, In rolls for bending structural iron and the like, the combination of the
screw threaded shafts, adjustable collars mounted thereon, auxiliary collars formed
in sections and secured to said adjustable collars, and means for securing said
adjustable and auxiliary collars in the desired position upon the screw threaded
shafts, substantially as herein shown and described.
17, In rolls for bending structural iron and the like, the combination of the
screw threaded shafts, adjustable collars or rolls mounted thereon, auxiliary collars
formed in sections and secured to said adjustable collars, means for securing
said adjustable and auxiliary collars in the desired position upon the screw
threaded shafts, and adjustable guides arranged at the front of said shafts, sub-
stantially as herein shown and described.
18, In rolls for bending structural iron and the like, the combination of the
screw threaded shafts, adjustable collars or rolls mounted thereon, auxiliary
collars formed in sections and secured to said adjustable collars or rolls, means
for securing said adjustable and auxiliary collars in the desired position upon
the screw threaded shafts, and adjustable guides arranged at the rear of said
shafts, substantially as herein shown and described.
19, In rolls for bending structural iron and the like, the combination of the
screw threaded shafts, adjustable collars or rolls mounted thereon, auxiliary
collars formed in sections and secured to said adjustable collars, means for
securing said adjustable and auxiliary collars in the desired position upon the
screw threaded shafts, and adjustable guides arranged at the front and rear
of said shafts, substantially as herein shown and described.
20, In combination, a set of shafts having adjustable and auxiliary collars
mounted thereon, means for securing the adjustable and auxiliary collars to the

page_text: shafts, and adjustable guides arranged at the front and rear of said shafts, sub-
stantially as herein shown and described.
21, In combination, a set of shafts having adjustable and auxiliary collars
mounted thereon, and means for securing said collars in position on the shafts,
substantially as herein shown and described.
22, In combination, a set of shafts having adjustable collars or rolls mounted
thereon, auxiliary collars secured to said adjustable collars, the auxiliary collars
being of different diameters, and being interchangeable, substantially as herein
shown and described.
23,-In combination, a set of shafts, having adjustable collars or rolls mounted
thereon, interchangeable auxiliary collars secured to the adjustable collars, and
means for adjusting one or more of said shafts, substantially as herein shown
and described.
;
24, In rolls for bending metal and the like, a removable collar formed in two
sections, one of said sections having the ends recessed to receive tenons formed
on the ends of the engaging section, means for securing the sections together,
apertures formed radially through the collars to receive adjusting bolts whereby
the samé is secured to the roll or collar in any desired position, substantially as
herein shown and described.
25, In rolls for bending metal and the like, sectional removable collars
having radial apertures formed therein, adjustable bolts operating in said
apertures, a recess and tenon formed on the ends of said sections, and means for
securing said sections together, substantially as shown and described.
26, In rolls for bending structural iron and the like, consisting of a shaft
having a reduced screw threaded portion, a movable and adjustable collar mounted
thereon and provided with a key way, said key way being adapted to receive a
key engaging in the same and in the key way of the collar to lock the latter
in the desired position on the shaft, substantially as shown and described.
27, A shaft having a reduced screw threaded portion, an adjustable and re-
movable collar mounted thereon, said collar being of the same diameter as
the roll, and means for locking said collar in any desired position, substantially
as shown and described.
28, The removable and adjustable collar mounted upon a reduced and screw
threaded portion of the shaft, said collar being of the same diameter as the
shaft, a key way formed in said reduced portion, key ways formed in the collar,
and a key for locking the collar in any desired position, substantially as shown
and described.
29, The adjustable collar mounted on the screw threaded portion of the
shaft and being of the same diameter, and a key adapted to engage the shaft
and adjustable collar, so as to lock the collar at any desired point, substantially
as shown and described.
30, In rolls for bending structural iron and like material, a collar formed in
sections and secured to the shaft, substantially as herein shown and described.
31, In rolls for bending structural iron and the like, the combination with
the shafts of one or more movable collars mounted thereon, substantially as
shown and described.
32 In rolls for bending structural iron and the like, the combination with the
shafts of one or collars formed in sections and mounted on said shafts, and
means whereby said sections are fastened together, substantially as shown and
described.
33, In rolls for bending structural iron and the like, the removable collars
adjustably secured to the shafts, means for securing the sections of the collars
together, and means for securing the collars to the shafts, substantially as shown
and described.
34, In rolls for bending structural iron and the like, removable and adjust-
able collars formed in sections, said sections being formed with a recess and

page_text: tenon for matching and securing together, and means for securing the collars to
the shafts, substantially as shown and described.
35, A shaft having a reduced portion with an adjustable collar mounted
thereon, substantially as shown and described.
36, In rolls for bending structural iron and the like, the combination with
the shaft of an adjustable collar mounted upon a reduced portion of said roll,
and means for fastening said collar in any desired position, substantially as shown
and described.
37, In rolls for bending metal and the like, an adjustable collar of the same
diameter as the shaft, and means for securing the same in the desired position,
substantially as shown and described.
38, The removable and adjustable collar, mounted upon a reduced and screw
threaded portion of the shaft, substantially as shown and described.
39,--The removable and adjustable collar mounted upon a reduced portion of
the shaft, said collar being of the same diameter as the shaft, substantially as
shown and described.
40, The adjustable collar of the same diameter as the shaft, and a key adapted
to engage the shaft and collar so as to lock the collar at a desired point on the
shaft, substantially as shown and described.
Datel
STILO
Kay
Oun
CHARLES WEBER.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.