Year: 1887

page_text: Date of Application, 28th June, 1887.
Specification Accepted, 29th July, 1887.
1, LONGLEY LEWIS SAGENDORPH, of Cincinnati, in the County of Hamilton, and
State of Ohio, United States of America, Manufacturer, 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:-
--
The principal features of the invention herein described, consist of a novel device
for cutting cleats in the crimped sheet of roofing, and also in a new device for
preventing buckling of the sheet while being crimped.
In the accompanying drawings forming part of this specification :-
:-
Fig. 1, is a front elevation of a machine embodying my invention, with this
exception, that the springs at the back of the machine for assisting in elevating the
bar I, and which would be partially seen from the front, are omitted, as their presence
would tend to confuse the presentation of these portions of the machine which are in
front.
Fig. 2, is a rear elevation of the machine, the eccentrics which operate the dies
being omitted.
Fig. 3, is an end elevation of that end of the machine which is at the right hand in
fig. 1, the fly-wheel and crank being omitted, to enable important mechanism to be
seen. In this figure, the male dies are shown at their highest points of elevation.
Fig. 4, is a transverse vertical section taken at the line X, X, of fig. 1, and looking
toward the left hand, the spring L for assisting in elevating the bar I being omitted,
to prevent confusion in showing other parts. In this figure, both male dies are shown
seated.
From all of the foregoing figures, the legs on which the machine is mounted, are
omitted.
Fig. 5, is an enlarged view of the preferred description of cutter for cutting the
diagonal slits.
Fig. 6, is an enlarged view of the cutter, whereby the cleats are cut in the sheet.
Fig. 7, represents in perspective, a portion of the length of a metal sheet which has
been crimped and cut by my machine; that side of the sheet being uppermost which
is beneath when the sheet is in the machine and being operated upon.
Fig. 8, is a section taken at the line X, X, of fig. 1, corresponding to fig. 4, but
showing the dies and operating mechanism in the position shown in fig. 3.
D
027

page_text: Fig. 9, is a section similar to fig. 8, but showing the eccentric very near to one end
of its throw, one die being seated, and the other die slightly elevated.
Fig. 10, is a side view of one of the devices for operating the clamping board.
Fig. 11, illustrates in vertical cross-section, some of the forms in which the edge
portions of a metallic sheet may be crimped by my machine.
Fig. 12, is an enlarged end view showing the bed-plate, a small portion of the
frame, the female dies, and a portion of the male dies in their relative positions, the
male dies being raised.
The legs or equivalent supports upon which the main or body portion of my
machine rests, may be of any suitable form. The various parts of the framework of
the machine, are indicated by the letter A.
At the sides of the bed-plate B., are placed the female or intaglio dies C. The male
or cameo dies D fit in guides d in the sides of the framework, and are suspended from
the top of the framework by toggle arms E, E. Each die is preferably provided with
three or four sets of toggle arms. The upper toggle arms are rendered adjustable in
length, preferably by the means shown, which consists of forming the arm in three
sections, the middle section being provided with right and left screws which fit into
the end sections. The toggle arins for the different male dies are adjusted to unequal
lengths.
In the machine shown in the drawings, the set of toggle arms supporting the die
farther from the eccentric, is adjusted to be the longer. The toggle arms of the two
male dies are united by connecting bars F. Each bar F is made in two parts, which
are united to each other by being screwed into the link F¹. The screws on the two
parts of the rod F being respectively right and left hand screws. The length of the
whole bar may be regulated by means of the link F. When the toggle arms
supporting the die farther from the eccentrics are made longer than the set of toggle
arms supporting the nearer die, the bars Fare made shorter than the distance between
the two dies themselves; and when the nearer toggle arms are the longer, the bars F
are made longer than the distance between the dies."
The main or operating shaft G is journalled in brackets A1, A2, projecting from the
frame of the machine. It is provided with fly-wheels G', and (when operated by
hand power) with a crank or cranks G² to turn it. The shaft is also provided with a
series of eccentrics g, one being placed opposite each of the sets of toggle arms E.
The connecting rods g' extend from the straps g2 of the eccentrics to the toggle
arms E, and impart to these toggle arms the motion of the eccentrics 9, thereby
lowering and raising the male dies.
The male die near the eccentric is provided with a tooth d¹, and the other male die
is provided with a tooth d². Each of these teeth extends the whole length of its
respective dic. The teeth d², d², together with the corresponding parts in the female
dies, form respectively the ridges E and E², of the sheet roofing. (See fig. 7).
When a slit or slits are to be cut in the sheet, such as indicated by h, fig. 7, the
male die for forming a crimp in that edge portion of the sheet when the slit is to be
cut, is provided with a cutter or cutters H, (see fig. 3), one cutter for each slit.
Of course, when each edge of the sheet is to be provided with a slit or slits, each male
die is to be provided with a cutter or cutters H, as the case may be. The cutters H
are preferably made separate from the dies D, as shown in fig. 5, and are secured to
their respective dies in any desired manner, and set at any desired angle. These
cutters make slits in the sheet in any desired direction,-in the present illustrative
instance, they make the diagonal slits h in the sheet. The bar I is placed behind the
rear die D. It extends from end to end of the machine, is directed by guides i (see
figs. 2 and 4) in the framework, and suspended from the top of the frame by toggle
arms J, in the same way as the dies D are suspended. The different sets of toggle
arms supporting the bar I are united by a longitudinal bar K. This latter bar has a
to-and-fro longitudinal movement imparted to it by means of an eccentric K¹, the
latter being operated by the crank K². To partially counter-balance the bar I, and
assist in raising it, the springs L are provided, which are attached to the bar and to
the frame above. The bar I has attached to it a number of cutters M, which fit in

page_text: corresponding recesses M2 in the rear die D, and descend into the recesses M¹ in the
die C. The under surface of each of these cutters M is beveled as shown in fig. 6, so
that one end projects farther down than the other end. These cutters M are present
when cleats, as m, are to be cut in the sheet substantially as shown in fig. 7.
The clamping board, plank, or plate N extends from end to end of the machine, and
is suspended by the springs N₁ from the framework. At each end of the clamping
board N, and journalled in bearings 0 attached to the framework, is an eccentric O,
having the lever arm 0¹, by means of which the eccentric is operated to depress
the clamping board N against the bed-plate B. On the forward female die Care
placed two or more adjustable stops or guides P, to determine the location of the
sheet of metal in the machine. (See figs. 1, 4, 8 and 9.) Each guide P consists of
a bracket P attached to the die C, and supporting a screw-threaded rod P², which
moves the tongue p back and forth. (See fig. 8.)
The mode of operation is as follows: The male dies are first raised as shown in
figs. 3 and 8, to permit the sheet which is to be crimped, to be placed in position on
the bed-plate B. The sheet is now placed on the bed-plate with its front edge bearing
against the tongues p of the stop P. The eccentrics are now turned down, depressing
the clamping board N, which holds the sheet of metal more or less firmly in position.
The cranks G2 are now turned, imparting motion to the eccentrics which in their
turn impart a longitudinal movement to the rods g' and F, which lower the male dies.
With the mechanism adjusted as shown in the drawings, that male die which is the
nearer to the eccentrics g is first seated, and is seated shortly before the eccentrics
reach their full throw. This position of the mechanism is shown in fig. 9. As the
eccentric continues in its throw, the other die continues to descend, and reaches its
scat just as the eccentric completes its throw. While theoretically, the first die is
raised by the continuation of the movement of the eccentric, practically it is not; and
when the eccentric has reached its full throw, the dies are both seated as shown in
fig. 4. It is necessary to have the dies seat at different times in order to prevent the
sheet of metal being torn.
The clamping board N acts as a tension. As the first die is seated, it forces before
it the sheet of metal, drawing the sheet from both directions. The amount that the
whole sheet is drawn in this operation, is determined by the tension of the clamping
board N, and the gauge or guide P,p.
Beside forming the ridges E', the two descending male dies D, through the agency
of the cutters H, cut the diagonal slits h. While the sheet is held down by the dies D,
the bar I is lowered by means of the crank K². The beveled cutters M on the bar I
pass through the sheet into the recesses M¹ of the die C. In this movement, the
cutters M form the cleats m on the sheet, freeing them on two sides, but leaving
them attached to the margin of the sheet, and bending them down as shown in fig. 7.
The edge portion of the sheet may be crimped into different forms according as the
edge of the sheet is made to project a greater or less distance over and beyond that
edge of the front female die which is toward the longitudinal center of the machine.
This amount of projection is regulated by the guides or stops P,p. A few of these
different forms into which the edge portion of the sheet may be bent, are shown in
fig. 11.
The particular shape of ridge formed in the sheet, of course, depends upon the
shape of the teeth of the dies. The preferred shape of ridge is that shown in the
drawing, when the ridge E is shown with both its sides inclined toward the plane of
the plate, and joining the general plane of the plate, through somewhat marked curves,
while the other ridge E' is made with one of its sides nearly perpendicular to the
general plane of the plate, with only a slight curve uniting them, while the other side
of this ridge is similar to the sides of the ridge E².
The ridge E' is formed by the die which first descends, and the material which
goes to form it, is drawn partly from the main body of the sheet, and partly from
that part of the sheet which lies in front of the groove in the female die. The amount
of the slip of the whole sheet is determined by the tension of the clamping board N.
When the second ridge E2 is formed, the sheet of metal as a whole, can not slip, but

page_text: is held immovably by the first die. It therefore follows that the whole of the ridge E²
is formed from the metal which covers and projects beyond the groove in the rear
female die. To accommodate the slip of the metal, I have provided the groove in this
female die with sloping sides, and given a marked rounding to its edges.
When two sheets are united, the broad ridge E is placed over the narrow ridge E
of the adjoining sheet. The straight side of the die enables the ridge E¹ to be made
narrower than the other ridge. From the mode of action of the machine already
described, it is seen that the ridge with the straight face must be made by the first
die, because after the first die has descended, the sheet of metal as a whole, is clamped
firmly in position, and the material forming the second ridge is drawn entirely from
the free edge of the sheet. Now, if the inner faces of the dies which form this second
ridge were not inclined, the sheet would be sheared off at the inner edge of the second
ridge E².
The sheet of roofing as it leaves the machine, is illustrated in fig. 7. The cleat m,
is now turned over the ridge E³, and onto the sheet at right angles to the edge
of the sheet, and is then bent to conform to the shape of the ridge, either by
being replaced in the machine, or by the use of a special forming tool operated
by hand. These turned over cleats form a means for locking the sheets together. The
slits serve two purposes. They indicate roughly the amount of overlapping of
adjacent rows of sheets, as the slits h of one row must always be covered by the sheets
of the adjoining row. In the row of sheets which come at the edge of the roof, the
slits are continued to the edge of the sheet, as indicated by dotted lines in fig. 7.
The tongue so formed is turned under the edge of the roof, and serves to hold the
sheet in place.
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 a machine for crimping sheet metal roofing plates, the combination of the
bar I provided with cutters, the upper die D, lower die C provided with recesses to
receive the cutters on bar I, and means for raising and lowering the die D and the
bar I, all substantially as set forth.
(2) In a machine for crimping sheet metal roofing plates, the combination of the
dic D provided with recesses M³, die C provided with recesses M², bar I provided
with cutters M, and means for raising and lowering the die D and bar I, substantially
as set forth.
(3) In a machine for crimping sheet metal roofing, the combination with corre-
sponding female dies, of the dies D, one provided with the tooth d having two
inclined faces, and the other provided with the tooth d' having one surface inclined,
and the other vertical, substantially as, and for the purposes set forth.
(4) In a machine for crimping sheet metal roofing, the combination with corre-
sponding female dies, of the dies D, one provided with the tooth d² having two
inclined faces, and the other provided with the tooth d having one surface inclined,
and the other vertical, and the tension device consisting of the board N, and eccentrics O
mounted in bearings 02 all substantially as set forth.
(5) In a machine for crimping sheet metal, the tension device consisting of the
board N, provided with elevating springs N₁, and eccentrics O mounted in bearings 02,
substantially as, and for the purposes specified.
Dated the 28th day of June 1887
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London,
Associate Agent.