Improvements in Machines for Corrugating Sheet Metal.
Year: 1886

page_text: Date of Application, 25th May, 1886
Specification Accepted, 28th Jan, 1887
Improvements in Machines for Corrugating Sheet Metal.
I, LONGLEY LEWIS SAGENDORPH, of Cincinnati, in Hamilton County, State of Ohio,
United States of America, Manufacturer, do hereby declare the nature of my invention
for "IMPROVEMENTS IN MACHINES FOR CORRUGATING SHEET METAL," and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement :-
The various features of my invention, and the various advantages resulting from
their use singly or conjointly will be apparent from the following specification.
Figure 1, is a front elevation of my improved machine.
Figure 2, is a top view thereof.
Figure 3, is an end elevation.
Figure 4, shows one method of shaping the teeth on roller, and plate for the purpose
of making the corrugation.
Figures 5 and 6, are cross sections of rollers showing different means of
strengthening and lightening them.
Figure 7, is an end elevation of my machine as adapted to corrugate curved plates.
Figures 8, 9, and 10, illustrate an auxiliary device for increasing the pressure.on
the bed plate.
b
The bed plate B, is suitably supported, as for illustration, on a frame A, and is
provided with corrugations extending from end to end of the machine. A long
roller with corrugations to fit those of the bed plate B, rests in the bed. These two
parts, viz the corrugated bed plate and corrugated roller, with apparatus to keep
the roller down on the bed, and means to roll the roller back and forth on the bed
plate, constitute the main features of the device. The ends of the roller are held in
journal boxes D, which, for the purpose of adjusting the roller to and from the bed
plate B, are adjustable, and slide in the side frames E, as shown in fig. 3. Two heavy
pieces A¹, one near or at each end of the frame respectively, project downward from
their respective ends of the frame. In each of these projections is a groove a, in
which groove slides the tongue e, projecting from the adjacent side frame E. The
under surface of each frame or piece A which is attached to the frame of the
machine is provided with a toothed plate a'. The side frames E, are for the purpose

page_text: of securing greater firmness, rigidity and strength to the machine, are joined to each
other across the machine by the long rods E¹, above the bed plate, and also by the
rod F, below the bed plate. These side frames E, rest against the face of the end
pieces A, and the tongues e, respectively fit into their respective grooves a, which
latter thus serve as guides. The top of frame E, is completed by the yoke E², through
which is screwed the screw G. The screw G, is swiveled into the top of the journal
box D, and above is provided with an appropriate crank or wheel G¹. This mechanism
raises and lowers the journal boxes and regulates the distance between the bed plate
and the roller. Each frame E, is provided with a downwardly extending lug or flange,
or extension ; and these extensions t, respectively constitute the respective bearings
or journal supports of the rod or shaft F. The gear is alike on each side, and may
be described as follows -The pinion H, is centred on the frame E, and derives its
motion from the crank I, or a power pulley. This pinion H, meshes with the spur
wheel J, centered on the shaft F, which latter turns with this spur wheel. Also
centered on the shaft F, and rotating with it, is the pinion L. This pinion L, meshes
with the toothed plate a. The action of this gear is to run the side frames E, back
and forth across the ends of the machine. In their excursions these frames carry with
them the roller C, which latter meshing with the corrugated bed plate, corrugates any
sheet metal which may be. beneath it. It is convenient to have stops, on the ends of
the frame A, as shown in figs. 1, 2, and 7, to prevent the frame E, running, off the
bed entirely. For imparting facility for regulating the distance which the roller is to
travel, each stop, is provided with a stop screw, which latter can be screwed
towards or from the longitudinal centre of the machine as occasion demands, and the
distanco which the frame and its roller C, travels, be regulated. In operation the
roller is moved to one side of the machine, the piece of sheet metal to be corrugated
is then laid on the bed plate, and the roller moved over it, and corrugating it. The
corrugated plate is now removed, and another plate put in, preferably from the
opposito side.
The mechanism for regulating the distance between the bed plate and roller allows
of the corrugations in the sheet of metal being varied in depth. Thus, if the roller
be raised it does not sink so deeply between the corrugations in the bed plate, and
consequently makes only a wavy plate. It is easily understood that the depth of these
corrugations can be varied to suit the operator. In operating the machine it is
convenient to have a guide or stop which shall insure the sheet of metal being properly
placed on the bed plate. A preferred description of mechanism for this purpose is as
follows:
At intervals on the frame A, are placed flat springs M, which tend to raise and
present their ends m, above the surface of the bed plate. Grooves in the bed plate
accommodate said springs. Figure 3, shows the plate of sheet metal N, impinging
against the ends of the springs. These springs are preferably adjustable in order that
the edge portion of the plate to be corrugated may be left plain, or be formed into a
complete or partial corrugation as desired. The preferred mode of rendering these
springs adjustable is as follows: The spring is attached to a movable block g, capable
of sliding back and forth in and supported by a hollow box or support W, the latter
being screwed or otherwise secured to the bed plate B. A screw rod g', swiveled in
the outer end of the block g, engages a female screw in the block W, and is rotated
by a thumb or hand wheel g². By rotation of the screw rod g¹, the spring is set
nearer to or farther from the corrugations of the plate B, as may be desired.
When the roller is moved it depresses the spring M, and passes over them.
In figures 8, 9, and 10, is illustrated a device whose use is to make pressure on the
corrugating roller at its centre. Such central pressure on the roller, in certain cases
becomes desirable, when the corrugating roller is long, better results being obtained
by having the pressure thus distributed. A frame-work P, P¹, which rests directly on
the side frames E, E, extends over the roller C, and supports in the centre of the
machine a frame E³. The frame E, carries the roller C', which meshes with the roller C.
Some means must be adopted to exert pressure on the roller C, and this is preferably
accomplished by having the roller C', journaled into the yoke D², which latter slides

page_text: in the frame E³, and has pressure made on it by the screw G³, passing through the top
of the frame E³. Should the frame E³, need to be steadied, vertical frame-work as P,
is employed. In the upper fork made by the pieces P2, the roller p, is carried. This
latter bears against the surface of the T-rail Q, which is attached to the ceiling and
which forms a track along which the roller travels. In operation, this auxiliary device
is carried back and forth with the roller C, and all the time the roller C, keeps the
pressure on the centre of the roller C. Instead of the frame work P, P1, P2, a tug
chain may be stretched over the frame carrying the roller C, and be connected to the
frames E, E. It is unnecessary to cast the roller C, of solid metal, and the preferred
forms of making it are illustrated in section in figs. 5 and 6. In figure 6, the inside
hollow spaces C, C, are plain, but in figure 5, the spaces C2, are corrugated, the
projections corresponding to the projections on the outside and intended to strengthen
the roller at these points.
The modification shown in figure 7, is very useful. It differs from the device already
described, in but one particular, and that is in having a concave bed plate instead of a
It corrugates and bends at the same time and produces a much neater
specimen of work than can be obtained by bending a sheet after it has been
corrugated. -
flat one.
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, A corrugating roller carried in sliding frames, substantially as and for the
purposes specified.
2, The frame A, and bed plate B, provided with piece A2, having groove a, and
teeth a', in combination with the corrugated roller C, in the side frame E, the latter
provided with the tongues e, and gear wheels H, J, and L, substantially as and for the
purposes specified.
3, The combination of frame A, bed plate B, corrugated roller C, and spring M,
substantially as and for the purposes specified.
4, The combination of frame A, bed plate B, corrugated roller C, and spring M,
provided with strip m', substantially as and for the purposes specified.
5, The corrugated roller with corrugations on its inner surface as shown, substan-
tially as and for the purposes specified.
6, The roller C, in combination with the roller C³, frame work P, P¹, frame E³,
yoke D2, screw G2, frames P, roller p, and rail Q, substantially as and for the purposes
specified.
.
7, The combination of the stationary corrugated bed plate, and stops z, provided
with a stop screw a³, and the reciprocating corrugated roller, and the sliding frame E,
substantially as and for the purposes specified.
8, A corrugated roller carried in sliding frames, in combination with a corrugated
bed plate, substantially as and for the purposes specified.
9, A corrugated roller carried in sliding frames, in combination with a curved corru-
gated bed plate, substantially as and for the purposes specified.
10, The combination of the springs M, and means for rendering them severally
adjustable, substantially as and for the purposes set forth.
11, The combination of the spring M, support W, screw rod gl, and thumb piece or
wheel g, bed plate and corrugating roller, substantially as and for the purposes
specified.
ALLISON BROS.,
Agents for the Applicant.