IMPROVEMENTS IN SCREW HAND-PRESSES
Year: 1856

page_text: LETTERS PATENT to André Jacques Isaac de Montenay du Minby, of
the Town of Blois, in the Empire of France, Gentleman, for the Inven-
tion of "IMPROVEMENTS IN SCREW HAND-PRESSES."-A communication from
Pierre Samain. of Meusnes (France).
Sealed the 5th May 1857, and dated the 5th November 1856.
PROVISIONAL SPECIFICATION left by the said André Jacques Isaac de
Montenay du Minhy at the Office of the Commissioners of Patents, with
his Petition, on the 5th November 1856.
I, ANDRÉ JACQUES ISAAC DE MONTENAY DU MINDY, of the Town of Blois, in
the Empire of France, Gentleman, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN SCREW HAND-PRESSES," to be as follows:-
The improved press has a downward vertical action, its moveable pressing
plate being acted upon by a pair of double-hinged levers or toggle joints, the
lower ends of which are connected with the pressing plate, and the upper
secured to the transom or cross bar of the framing. The centre joint of each
lever is made with a female screw, one right and the other left handed; the
axle or shaft which passes through the joints is cut with corresponding male
screws, and the outer ends fitted with crank handles or fly wheels. By turning
the handles or wheels, the levers are caused to approach or recede from each
other, and the pressing plate raised or depressed. The accompanying Drawing

page_text: is a diagram, representing a front view of the press. A, B, is the pressing
plate; C, D, the pressure table; C, S, and D, T, standards of the framing;
S, T, the cross bar or transom; a, b, c, and d, e, f, the hinged levers or toggle
joints; g, h, the shaft or axle, which works in the joints b, e; F, F, driving
wheels or handles.
E
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said André Jacques Isaac de Montenay du Minhy in the Great
Seal Patent Office on the 5th May 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, ANDRE
JACQUES ISAAC DE MONTENAY DU MINHY, of the Town of Blois, in the Empire
of France, Gentleman, send greeting.
WHEREAS Iler most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifth day of November, in the year of our Lord
One thousand eight hundred and fifty-six, in the twentieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
André Jacques Isaac de Montenay du Minhy, Her special licence that I, the
said André Jacques Isaac de Montenay du Minhy, my executors, admi-
nistrators, and assigns, or such others as I, the said André Jacques Isaac de
Montenay du Minby, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "IM-
PROVEMENTS IN SCREW HAND-PRESSES," a communication from Pierre Samain, of
Meusnes, (France,) upon the condition (amongst others) that I, the said André
Jacques Isaac ile Montenay du Minby, my executors or administrators,.by an.
instrument in writing under my, or their, or one of their hands and seals,
should particularly describes and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and causo the same to
be filed in the Great Seal Patent' Office within six calendar months next and
immediately after the date of the said Letters.Patent.
NOW KNOW YE, that I, the said André Jacques Isaac de Montenay du
Minhy, do hereby declare the nature of the said Invention, and, in what.
manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-...
My improved screw hand-presses are made on the double-hinged lever..br

page_text: toggle joint principle, and are of powerful action. They are actuated by a
right and left threaded screw, gearing into double pivot nuts or knees. The
screw is driven by means of cog wheels, or by cranks, according to the purpose
for which they are required. The double-hinged, or toggle-joint levers, (take a'
straight or angular relative position,) according to the right or left motion of
the screw. And presses on this improved principle can be made in a variety
of forms, the compressing power being exerted in a vertical or horizontal
direction. In the Drawing annexed hereto, and forming part of this my
Specification, the presses are shown in several varieties, and they may be made
for various industrial purposes of different sizes and powers. The same letters
in the Drawings refer to similar parts in all. Figures 1, 2, and 3 are
perspective views of three presses of varying forms, having a downward
pressing action those represented by Figures 1 and 3 are constructed with'
outside double upright side beams M, M. Figure 1 shows the lever handles'
H, H, outside, and Figure 3 inside. In Figure 2, the driving screw S
is, with a toothed wheel R, between the inside upright beams M, M, this'
wheel being actuated by a screw I, shown separately by Figure 5. The
screw S actuates the tooth wheel R and worm I by means of a collar, which
slides freely up and down the uprights, the whicel and screw being moved
together with the screw S. by the motion of the double-hinged levers L, L,
when the levers are actuated by.the screw S. Figure 4 is.the plan of one of
my improved presses. The compressing action is effected in a horizontal
direction; the pressing mechanism,, which is the same as that described with
reference to the vertical presses just described, is fitted in a strong wooden'
chest A, B, C, D; the double-hinged levers L, L, are placed in a horizontal
position, they are actuated by the right and left threaded screw S, driven by
hand levers M, M. The cross beam C, D, is steady, whilst the beam E travels to
and fro by the action of the hinged levers L, L, and carries along the other
pressing beam F, which slides in grooves cut in the side frames A, C, and B, D.
The substance to be pressed or squeezed is placed in the empty space U, and
any liquor to be expressed will flow out at J. The action of my presses is so
powerful, that if made entirely of iron or other similar strong metal, suitably
arranged, they may be applied for shearing and punching metallic plates. It
must be understood that they may be made of various materials, of any size,
5 and to any force, and may be used for a variety of industrial purposes. I may
provide them with a dynamometer, for ascertaining the maximum degree of
pressure attained, the bending of the head of the beam being taken advantage
of for a criterion of the dynamometer, which might also be made in the lever
principle of the weighing scale.

page_text: EXPLANATION OF THE FIGURES.
A, B, C, D, show the chest of the horizontal press (Fig. 4); E, moveable
squeezing beam or board; U, space wherein the substances to be pressed are
placed; L, L, double hinged or jointed levers; K, K, screw nut or toggle
joint of the levers L; N, fixed hinge; O, travelling binge of the levers L;
M, M, upright side beams of the vertical presses S, actuating right and left
threaded screw driven by the hand levers H; V, head or cross beam; J, spout
for the juice or liquor; I, screw worm; R, screw wheel for actuating the
driving screw in the press, shown by Fig. 2.
Having now described the nature of the said Invention, and how the same
is to be carried into practical effect, I wish it to be understood that I make no
claim to the several parts of the presses herein-before described when taken
separately and apart from the combination in which I use them, and which
combination constitutes my Invention, and that I reserve the right to vary the
details of the said combination of machinery; and that, what I claim is, the
construction of presses substantially in the manner and for the purposes
herein-before described and shewn by the Drawings.
In witness whereof, I, the said André Jacques Isaac de Montenay due
Minhy, have hereunto set my hand and seal, this Twenty-second
day of April, in the year of our Lord One thousand eight hundred and
fifty-seven.
Witness,
T. D'AUVERGNE,
A. J. I. DE MONTENAY DU MINHY. (L.B.)
Propriétaire, à Blois.
(L.B.)