IMPROVEMENTS IN SAWING OR CUTTING STONE
Year: 1856

page_text: LETTERS PATENT to Henri Petitpierre, of No. 15, Avenue de St. Ouen,
Batignolles, near Paris, Engineer, for the Invention of "IMPROVEMENTS IN
SAWING OR CUTTING STONE."
Sealed the 29th August 1856, and dated the 11th March 1856.
PROVISIONAL SPECIFICATION left by the said Henri Petitpierre at the
Office of the Commissioners of Patents, with his Petition, on the 11th
March 1856.
I, HENRY PETITPIERRE, of No. 15, Avenue de St. Ouen, Batignolles, near
Paris, Engineer, do hereby declare the nature of the Invention for IMPROVE-
MENTS IN SAWING OR CUTTING STONE," to be as follows:-
The object of this Invention is to facilitate the sawing or cutting of stone by
land labour. For this purpose a frame is used, which is mounted on wheels,
so- that it may be easily transported to the place where it is to be applied; on
this frame is an axis, which has a crank handle at one or both of its ends, so
that rotatory motion can be given to it by manual labour. From this axis a
to-and-fro motion is communicated to an upright bar, centered at one end. to
the framing. To this bar at a convenient distance from its centre a connecting
rod is attached, which communicates motion to the saw, which is of an ordinary
description, and is guided in its to-and-fro motion by suitable upright guides.
A vessel is placed on the top of the stone to supply sand and water to the saw
as the work proceeds.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henri Petitpierre in the Great Seal Patent Office on the
8th September 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRI
PETITPIERRE, of No. 15, Avenue de St. Ouen, Batignolles, near Paris, Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of March, in the year of our Lord
One thousand eight hundred and fifty-six, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Henri Petitpierre, Her special licence that I, the said Henri Petit-
pierre, my executors, administrators, and assigns, or such others as I, the
said Henri Petitpierre, my exccutors, 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 "IMPROVEMENTS IN
SAWING OR CUTTING STONE," upon the condition (amongst others) that I, the said
Henri Petitpierre, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly describe
and ascertain the nature of the said Invention, and in what manner the same
was to be performed, and cause 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 Henri Petitpierre, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
The object of this Invention is to facilitate the sawing or cutting of stone by
hand labour. For this purpose a frame is used, which is mounted on wheels,
so that it may be easily transported to the place where it is to be applied; on
this frame is an axis, which has a crank handle at one or both of its ends, so
that rotatory motion can be given to it by manual labour. From this axis a
to-and-fro motion is communicated to an upright bar, centered at one end to
the framing. To this bar at a convenient distance from its centre a connecting
rod is attached, which communicates motion to the saw, which is of an ordinary
description, and is guided in its to and fro motion by suitable upright guides.

page_text: A vessel is placed on the top of the stone to supply sand and water-to the saw
as the work proceeds.
.
Having thus stated the nature of my said Invention, I will proceed more
fully to describe the same.
same.
DESCRIPTION OF THE DRAWING.
Figure 1, lateral elevation of the motive apparatus; Figure 2, plan of the
a, frame, mounted on three feet d, of which the front one is grooved;
two framework chairs c support an axle 6, furnished with the two wheels b',
on which the machine rolls; four cushions e fixed to the frame support the
beams f, g. The beam 9 is terminated by a crank handle, or by a moveable
pulley corresponding to a mechanical propeller, and is supplied with a cog
wheel, which sets in motion the pinion fixed on the beam. The beam fhas at
one of its extremities a tray f¹, provided with several holes, to be changed
according to the direction to be given to the saws, and at the other extremity.
a fly wheel h. In the holes of the tray f¹ is passed the extremity of the
connecting rod i, of which the other extremity is fixed stationary at the
extremity of a beam k, which moves in two cushions .. The beam k is
attached to a cross beam or oscillating rod j, pierced with holes to fit at a.
suitable height into the bar l, which transmits the to-and-fro movement to the
saw or saws. Figure 3, lateral elevation of the sawing apparatus for one saw.
q represents the stone; and p, the saw, which is guided by two grooved guides
or sills n, made fast on the stone, and in which the saw slides. The saw is
governed by the bar I, above named, to which is attached a chain m, fixed to
the bar of the frame of the saw in order to regulate its traction. r a vase, of
the form of a pail, with a division to contain the water and the grit, furnished
with a plug hole (valve) and a tap; t, a gutter into which the water and grit
falls. Figure 4, lateral elevation of a frame for several saws; Figure 5, end
elevation of the same; Figure 6, plan of the same. The blades of the saws are
suitably fixed at the two extremities of a horizontal frame tx, of which the two
lateral bars are engaged between four pairs of posts v, mounted on two wooden
frames ; the lateral bars roll between the posts on rollers z, placed on
moveable cushions w, which slide between each pair of posts, and are sustained
by chains, connected with pulleys fixed to the beams r. The transversal
bars forming the ends of the frame are made with inclines towards their ends,
which elevate the extremity of the frame at the moment when one or other of
the ends bears upon the rollers z. The object of this is to effect what is called
the tilting or lifting up of the saw, so as to allow room for the water and grit

page_text: to pass under the saw. Moveable drums y, fixed at the extremities of the
beams v¹, v, outside the posts, are each furnished with a chain, one end of
which is fixed to the drum, and the other bears a counterweight, intended to
balance the frame and keep it at a proper height. The frame t is attached by
one of its ends to the bar l, which communicates to it its to-and-fro motion.
The supply of water and grit is obtained by any suitable continuous means by
modifying the system indicated for one saw, in Figure 3.
Having thus described the nature of the Invention, and the mode of
performing the same, I would have it understood that I make no claim to any
of the parts separately, and the details may be varied without departing from
my Invention; what I claim is the combination herein described.
In witness whercof, I, the said Henri Petitpierre, have hereunto set my
hand and seal, this Sixth of September, in the year of our Lord One
thousand eight hundred and fifty-six..
Witness,
T. BASSET,
2, Rue Drouet.
HENRY PETITPIERRE. (L.S.)