Year: 1891

page_text: Date of Application, 24th June, 1891-Accepted, 25th July, 1891

page_text: V. THE
peripheral corner of the roller having a segmental, contour of such radius as is
desired for the inner corner of the flanging to be produced:-
13, a main saddle sliding on the slide-way outwardly beyond the anvil
saddle:-
14, hook-links connecting the two saddles :--
15, the center of the contour curve at the corner of the anvil roller at that point
immediately under where the root of the flange is to turn :—
16, an axis carried by the main saddle, at right angles to the slide-way, or tangent
to, a circle whose center is at the axis of the table, this axis 16 being at the same
level as the root corner 15 of the anvil roller :-
.17, a second axis or axle carried by the main saddle, parallel with axle 16, but
outwardly beyond the same, axial-points 16 and 17, and radius-center 15, being in
a common horizontal plane :-
:-
18, a lever pivoted at axis 17 and having two pivots, one further outward radially
and further in angular advance than the other :-
19, a similar lever pivoted at axis 16 and having two pivots identical as to radius
and angular advance with those of lever 18, both of these levers Being in pairs as
an incident to proper rigidity of construction:-
20, a lever pivoted at its heel to the inner pivot of lever 18, and pivoted at an
intermediate point in its length to the inner pivot of lever 19, and projecting
toward the table to a pivot located in the same plane as its other two pivots
21, an identical lever pivoted to the outer pivots of levers 18 and 19, all the
corresponding pivot distances of these two levers 20 and 21 being accurately
identical:
22, a box-like housing having two pairs of trunnion pivots engaged by the forward
ends of levers 20 and 21:—
23, the spinning roller, journaled in this housing, the axis of this roller, no
matter what its position of movement, being at right angles to the pivot axis of
the lever system just described
-
24, a worm-wheel-segment fast with lever 18, being either formed with that lever
or fast on the same pivot shaft with it :-
:-
25, a worm engaging this segment:-
26, a hand wheel on the shaft of this worm, the shaft being journaled in a bearing
carried by the main saddle :-
27, a screw journaled in the bed-plate and adapted to serve in adjusting tlie main
saddle on the bed-plate:-
T
28, holes through lever 20 and lever 18, these holes coinciding when the parts are
in a certain position of movement :-
29, the shaft on which the spinning-roller is journaled, the roller being, in the
exemplification, loose on the shaft while the shaft is clamped in the housing 22,
and,
30, screws in the housing for adjusting this shaft to and from the anvil roller,
the housing, where the shaft engages it, being slotted to permit of the adjusting
movement of the shaft.
In Fig. 1 it is seen that the axis of the spinning-roller is horizontal, the lower
periphery of the roller bearing on the plate 5 just over the anvil roller. If
worm 25 be turned in the proper direction levers 18 and 19 will swing to the left.
simultaneously and, simultaneously, the trunnion pivots of the housing of the
spinning-roller will swing to the left in arcs whose center is at radius center 15.
It follows that during the course of this swinging motion the spinning-roller may
have had its axis turned from the horizontal to the vertical position and that during
the entire movement the lower surface of the spinning-roller will have remained
constantly, tangent to a circle struck from radius center 15. This. circle. will be the
outer contour circle of the completed flanging. It will be observed that the effect
of the action is, as, plate 5 is forcibly rotated, that the spinning-roller foll's the
projecting, metal of the plate down over the anvil roller with a truly circular
wiping notion.

page_text: The anvil roller is to be adjusted along the slide-way to have a proper radial
position with reference to the center of the table, this adjustment being effected, in,
the exemplification, by screw 27, which moves both saddles together. The anvil-
roller and its saddle may, of course, be dispensed with in case the flanging is done,
as is quite common, over a former-table of proper diameter and stiffness, such
former-table being illustrated in Fig. 2.
By unhooking links 14 the main saddle, and all the spinning-roller-mechanism,
may be moved back far away from the table to permit the removal or placing of
the plate being operated upon. Where the anvil roller is employed the plate to be
operated upon may be placed on the table while the main or both saddles are out
of the way to the left, and the saddles may then be moved to the right to the
proper position, after which the table may be put in motion and the Hanging
effected. When the flanging is done, the links 14 may be unhooked and the main
saddle etc. moved to the left. permitting the work to be removed. The anvil saddle
and roller, however, need never be moved except for purposes of primary adjust-
ment to suit the radius of work in hand. In other words the operation of the
machine, aside from adjustment for radius of plate being worked on, does not
require that the anvil-roller shall be capable of being shifted.
Where a former-
table, such as is illustrated in Fig. 2, is employed, changeable or alternative tables
of proper diameter take the place of the shifting anvil roller.
Screws 30 permit the adjustment of the spinning-roller to suit different thick-
nesses of iron being operated upon. It may be desirable to sometimes freely lift
the spinuing roller away from the plate, or, in other words, to open the
upper jaw of the system. Holes 28 coincide at a certain position of the
system. By removing pivots 16, and putting a pin through holes 28, the
entire lever-system has become rigidly unified and deprived of all but a single axis
of motion, namely, that at 17. Under such conditions, if worm 25 be turned in
the proper direction, the rigid lever-system will swing upwardly on pivot 17 and
the upper jaw of the system may thus be boldly opened.
All
I have, in the preceding description, spoken of lever 18, lever 19 etc., etc.
these levers are in pairs arranged to straddle the central parts, as will be understood
from Fig. 3. This is merely a structural feature incident to a desire to secure great
stiffness in the parts without excessive bulk and weight. The worm and worm-
wheel is to be taken as a mere exemplification of means for forcibly moving the
lever system.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is :-
1. In a flanging machine, the combination, substantially as set forth, with devices
to support and rotate the plate to be flanged, and a form-corner over which the
Hange is to be turned, of two pivots in the same plane with said form-corner, an
oscillating lever mounted on each of said pivots, two parallel levers pivoted on said
first-mentioned levers. a housing pivoted to said parallel levers, a spinning-roller
journaled in said housing, and means for oscillating said oscillating levers.
2. In a flanging machine, the combination, substantially as set forth, with devices
to support and rotate the plate, a form-corner over which the flange is to be turned,
and a spinning-roller to turn the flange, of two parallel levers each having three
pivots in a common line, a housing pivoted to one pivot of each of said levers and
carrying said roller, two oscillating levers connected with said parallel levers, two
pivots located in the plane of said form-corner and supporting said oscillating
levers, and means for oscillating said oscillating levers.
3. In a flanging machine, the combination, substantially as set forth, with devices
to carry a plate, a form-corner over which the flange is to be turned, and a spinning-
roller, of a housing for the spinning-roller, a pair of parallel levers trunnioned at
each side of said housing, two oscillating levers pivoted to each pair of said parallel

page_text: levers and supported on pivots of oscillation, and means for oscillating said
oscillating levers.
4. In a flanging machine, the combination, substantially as set forth, with devices
to carry the plate, a form-corner over which the flange is to be turned, and a
spinning-roller, of a housing, levers pivoted to the housings, a shaft for the spinning-
roller carried by the housing, and screws for adjusting said shaft in said housing.
Dated this 24th day of June 1891.
ALLISON BROS.,
Agents for the Applicant.