Year: 1890

page_text: Date of Application, 22nd July, 1890-Accepted, 23rd Aug., 1890
A and B are the top and bottom members of the press-frame and these are rigidly
connected in any suitable manner, for instance, as shown, by means of uprights a
and tie-rods a¹. The frame-work may be of metal or wood according to circum-
stances, but, if of wood, the lower member B should be reinforced by a metal plate B³,
and if the frame-work be of metal, members B B¹ would of course be cast integral.
Next above plate B are the three carrying wheels CCC, these wheels being adapted
to travel in a circular path on plate B'.
Wheels C are held in place by means of a three-armed spider C¹, the extremes c
of the spider serving as axles for these wheels. Next above wheels C and adapted to
ride thereon, is located a heavy lateral wheel or disc D, and next above this disc
are three cam-wheels E, these cam-wheels being adapted to travel in a circular path
on disc D. The cam-wheels are provided with sprockets e, and disc D has a series
of pockets d arranged in circular order and adapted to engage the sprockets whereby
the relative movements of cam-wheels and disc are rendered positive. These cam-
wheels are preferably of the two-cam varioty shown and are held in place by means
of spider E, the spider being of the three-arm variety and the extremes of the
arms e serving as axles for the cam-wheels. Next above the cam-wheels and resting
thereon is located a heavy disc F. The latter is provided with pockets arranged in
circular order on the under face thereof for receiving the sprockets of the cam-wheels.
Disc F does not revolve on its axis, but, on the contrary, is held accurately in
position, for instance, by means of ways connected with the frame-work of.the
press, these ways being embraced by shoulders f¹ of the disc. This disc has a
vertically reciprocating movement on the ways, the disc being moved upward by the
action of the cam-wheels below and moving downward by gravity. Disc F has an
upwardly-projecting centrally located hub F that operates in a central vertical hole
of stationary table G, the latter being rigidly connected with the frame-work of
the press. Hub F' may extend more or less above the table according to circum-
stances. For some purposes the hub, when in its depressed position should be flush
with the top surface of the table, for instance, in case of molds of some kind that
are to be moved along over the table. For other purposes this hub should extend
so far above the table, for instance, that dies, plunger, inolds or platen may be attached
to the hub. His an upright shaft having a bearing above in a central hole in disc F
and hub F, the shaft having a bearing below in a centrally-located hole in
members B B', this shaft extending through central holes in disc D and the two
spiders. This shaft may remain stationary and serve only as a steady-pin for holding
Price 821

page_text: disc D and the two spiders in place, in which case some provision must he provided
for rotating disc D for operating the press. To this end a preferable construction is
shown, disc D having teeth, for instance, bevelled teeth d for engaging bevel
pinion I and the latter being mounted on the driving-shaft I In case it is desired
to operate the press by horse power shaft H may serve as a driving-shaft, in which
case it should extend below the frame-work of the press and have attached a sweep h
shown in Fig. 1, in which case disc D is keyed fast to shaft H, and the bevelled
gearing shown would in such case of course be dispensed with. This press is
adapted to a great variety of work and hence various modifications may be made,
according to circumstances to adapt the press for special purposes. For instance,
member A that necessarily sustains the end thrust of hub F', may be located any
desired distance above table G, according to the size of the dies, molds, or. whatever
mechanism or material is to be operated or wrought upon between the table and
member A, and the form and construction of the table and of member A may of
course be varied indefinitely according to circumstances. Sometimes it is preferable
to construct member A of wooden beams. For other purposes this part had better
be of metal and would likely require grooves or holes for securing bolts, etc., by
which dies, molds or other mechanism may be attached, and the same may be said of
the table. Also, the shape and throw of the cam-wheels may be varied according to
circumstances, so long as the three wheels are alike and opposite sides of each wheel
are alike. It is evident that if these cam-wheels have sections thereof concentric with
the axes of the respective wheels, disc F will remain at rest during the engagement
thereof with such concentric sections, in which case an intermittently reciprocating
movement would be imparted to disc F. If such concentric sections of the cam-
wheels were at the heels and toes of the cams, respectively, disc F would remain at
rest for a time at the extremes of its throw, which in most cases is desirable. It is
evident that the modification suggested are within the purpose and spirit of the
invention as they would not change the general features of the press, and it is believed
that from the drawings and specification, parties skilled in the art will have no
difficulty in making such modifications as have been suggested, and others that may
be needed to adapt the press for the various uses for which it is likely to be
wanted.
It may be well to mention the fact that the pockets in disc F perforin no
functions, except to make room for the sprockets of the cam-wheels, and if the faces
of these cam-wheels were broad enough to have suitable bearing-surfaces at the
sides of the sprockets, an annular groove in disc F to receive the sprockets would
answer the purpose.
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 I
claim is :-
1. In a press, in combination, bed-plate, lateral wheel and movable disc arranged in
the order indicated, carrying-wheels adapted to operate between the bed-plate and the
lateral-wheel, cam-wheels adapted to operate between the lateral wheel and movable
disc, suitable mechanism preferably as shown for rotating the lateral wheel on its axis
substantially as set forth.
2. In a press, in combination, bed-plate, lateral wheel and movable disc arranged in
the order indicated and adapted to operate in parallel planes, carrying-wheels adapted
to operate between the bed-plate and lateral wheel, cam-wheels adapted to operate
between the lateral wheel and movable disc, whereby such disc is actuated by rotating
the lateral wheel and cam-wheels, substantially as set forth.
3. In a press, the combination, with bed-plate, lateral wheel and gravity. disc
arranged in the order indicated and adapted to operate in parallel planes, of a series
of carrying-wheels and a series of cam-wheels, the former being adapted to operate
between the bed-plate and lateral-wheel and the latter being adapted to operate between
the lateral-wheel and gravity-disc, substantially as set forth.
4. In a press, the combination, with bed-plate, lateral wheel and gravity-disc,

page_text: carrying-wheels and cam-wheels arranged respectively between the bed-plate and
lateral wheel and between the lateral wheel and gravity-disc, of upright shaft,
spiders mounted on such shaft, the extremes of these spiders serving respectively
as axles of the carrying-wheels and for the cam-wheels, substantially as set forth.
5. In a press, in combination, bed-plate, lateral wheel and movable disc, carrying-
wheels and cam-wheels arranged respectively between the bed-plate and lateral wheel
and between the lateral wheel and movable disc, such cam-wheels having sprockets on
the faces thereof, the lateral wheel having pockets for engaging such sprockets of the
cam-wheels, substantially as set forth.
6. In combination, upright press-frame having bed and opposing top member
and intermediate table, lateral wheel and gravity-disc located in the order indicated
between the table and bed-plate, cam-wheels and carrying-wheels arranged respectively
between the lateral wheel and gravity-disc and between the bed-plate and lateral wheel,
the gravity-disc having a centrally located upwardly-projecting bub, such hub being
adapted to operate in a corresponding hole in the table and adapted to extend more or
less above the table, substantially as set forth.
7. A power-press substantially as herein shown and described.
Dared this 22nd day of July Co.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents for Applicant.