A NEW SYSTEM FOR CONVERTING A SLOW ALTERNATE CIRCULAR MOTION INTO A RAPID CONTINUOUS CIRCULAR MOTION
Year: 1873

page_text: LETTERS PATENT to William Edward Gedge, of No. 11, Wellington
Street, Strand, in the County of Middlesex, Patent Agent, for the
Invention of "A NEW SYSTEM FOR CONVERTING A SLOW ALTERNATE
CIRCULAR MOTION INTO A RAPID CONTINUOUS CIRCULAR MOTION."--A com-
munication from abroad by Jeau Constant Michelet, of Dieppe
(Seine Inféricure), France.
Sealed the 29th July 1873, and dated the 3rd February 1873.
PROVISIONAL SPECIFICATION left by the said William Edward Gedge
at the Office of the Commissioners of Patents, with his Petition, on
the 3rd February 1873.
I, WILLIAM EDWARD GEDGE, of No. 11, Wellington Street, Strand,
in the County of Middlesex, Patent Agent, do hereby declare the nature
of the said Invention for "A NEW SYSTEM FOR CONVERTING A SLOW ALTERNATE
CIRCULAR MOTION INTO A RAPID CONTINUOUS CIRCULAR MOTION," a communica-
tion to me from abroad by Jean Constant Michelet, of Dieppe (Scinc
Inférieure), France, to be as follows:-
The slow alternate circular motion is on the accompanying Drawing
given by a hand lever L, but may be given by an inanimate motor, the

page_text: Invention being itself the practical solution of a problem of transforma-
tion of motion, a solution independent of the nature of the motor as well
as of its applications. Thus the application to a blower or blast fan and
the field forge herein-after described is but one of the numerous applica-
Have which it may sooniva.
On the accompanying Sheet of Drawing Fig. 1 is a front view of a
field forge embodying this Invention; Fig. 2 is a side view of same; and
Fig. 3 shows the parts giving the continuous circular motion, Figures 1
and 2 being drawn to a scale of ", and Fig. 3 full size. The lever L
being fixed on the lower shaft m, and the arc or segment of a circle O
being set on the same shaft, cach movement of the lever L to the right
or to the left will cause a corresponding movement of the segment of a
circle O. Upon this segment of a circle O are fixed two belts or straps,
winding on the upper shaft n, to which they give an alternate circular
motion. Upon the upper shaft n is keyed a very light wheel T, which
will make two revolutions and a half for each simple movement of the
lever L. Upon the wheel T is fixed the end of a cord, winding two and
a half times round it, enveloping one of the cylinders P, passing over the
guide rollers R, enveloping the second cylinder P, and coming back
upon the wheel T, its end being secured to the stretcher . The relation
of the radii between P and the wheel T is such that the cylinder P makes
from 20 to 25 revolutions for each simple movement of the lover L.
This variation from 20 to 25 is due to the greater or lesser amplitude of
the movements of the lever L.
Making the Circular Motion Continuous.-The cylinders P are moved
with an alternate circular motion. The shaft q of the blower must
follow the continuous circular motion, for which purpose the cylinders P
are loose on this shaft 7 of the blower, the momentary gearing or
clutching with which is effected by means of two catches (" becs de canne
à Pompo") F, set in the picces E. When the movement of one of the
cylinders takes place in the direction of the continuous rotation of the
shaft q the catch corresponding with this cylinder penetrates into the
openings p, presented by the inner face of this cylinder, at the same
time that the catch at the opposite end is driven out of the similar
openings of the other cylinder P, and the continuity of the circular
movement is thus obtained without appreciable effort.

page_text: Accessary Parts.-Between the cylindrical piece E and the cylinder P
is a washer K, pierced with an opening X, into which passes the end of
the catch F. When the movement of the cylinder P takes place in the
direction of the disconnection or unclutching the washer R in rotating
comes before the end of the catch, and is there held by a small tube in
the end of the catch F, and by the small rod V, set on the picco E, and
passing into an opening made in the washer K. This arrangement,
resulting in the friction of plane surfaces only, prevents any noise or
shock. In the catch F the small square end, by which it is kept from
turning, passes into a small projection on the end of the piece E.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Edward Gedge in the Great Scal Patent
Office on the 29th July 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
EDWARD GEDGE, of No. 11, Wellington Street, Strand, in the County of
Middlesex, Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of February, in the year
of our Lord One thousand eight hundred and seventy-three, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said William Edward Gedge,
Her special licence that I, the said William Edward Godge, my
executors, administrators, and assigns, or such others as I, the said
William Edward Gedge, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and
at all times thereafter during the term therein expressed, should and
lawfully might make, usc, excrcise, and vend, within the United Kingdom
of Great Britain and Ircland, the Channel Islands, and Isle of Man, an
Invention for "A NEW SYSTEM FOR CONVERTING A SLOW ALTERNATE CIRCULAR
MOTION INTO A RAPID CONTINUOUS CIRCULAR MOTION," a communication to
me from abroad by Jean Constant Michclet, of Dieppe (Seine Inféricure),
France, upon the condition (amongst others) that I, the said William
Edward Gedge, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and scals, should
particularly describe and ascertain the nature of the said Invention,

page_text: and in what manner the same was to be performed, and cause the.
same to be filed in the Great Scal Patent Office within six calendar
months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Edward Gedge, 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, reference being had to the accom-
panying Sheet of Drawing and to the figures and letters of reference
placed thereon, similar letters of reference being placed upon 'and
denoting similar parts in cach of the Figures respectively :-
The slow alternate circular motion is on the accompanying Drawing
given by a hand lever L, but may be given by an inanimate motor, the
Invention being itself the practical solution of a problem of transforma-
tion of motion, a solution independent of the nature of the motor as well
as of its application. Thus the application to a blower or blast fan and
the field forge herein-aftor described is but one of the numerous applica-
On the accompanying Sheet of Drawing Fig. 1 is a front clevation of a
field forge, embodying this Invention; Fig. 2 is a side elevation of same;
and Fig. 3 shows detached the parts giving the continuous circular motion,
Figures 1 and 2 being drawn to a scale of 1 th, and Fig. 3 full size. The
lever L being fixed on the lower shaft m, and the arc or segment of a
circle O being set on the same shaft, each movement of the lever L to
the right or to the left will cause a corresponding movement of the
segment of a circle O. Upon this segment of a circle O are fixed two
belts or straps, winding on the upper shaft n, to which they give an alter-
nate circular motion. Upon the upper shaft n is keyed a very light wheel T,
which will make two revolutions and a half for each simple movement
of the lever L. Upon the wheel T is fixed the end of a cord, winding
two and a half times round it, enveloping one of the cylinders P, passing
over the guide rollers R, enveloping the second cylinder P, and coming
back upon the wheel T, its end being secured to the stretcher t. The
relation of the radii between P and the wheel T is such that the cylin-
der P makes from 20 to 25 revolutions for each simple movement of the
lever L. This variation from 20 to 25 is due to the greater or lesser
amplitude of the movements of lever L.

page_text: Making the Circular Motion Continuous.-The cylinders P arc moved
with an alternate circular motion. The shaft 7 of the blower must follow
the continuous circular motion, for which purpose the cylinders P are loose
on this shaft 7 of the blower, the momentary gearing or clutching with
which is effected by means of two catches (" becs de canne à Pompe ")
F set in the picces E. When the movement of one of the cylinders P
takes place in the direction of the continuous rotation of tho shaft I, tho
catch corresponding with this cylinder penetrates into the openings p,
presented by the inner face of this cylinder, at the same time that the
catch at the opposite end is driven out of the similar openings p of the
other cylinder P, and the continuity of the circular movement is thus
obtained without appreciable effort.
Accessary Parts. Between the cylindrical picco E and the cylinder P
is a washer W, pierced with an opening X, into which passes the end of
the catch F. When the movement of the cylinder P takes place in the
direction of the disconnection, or unclutching, the washer W in rotating
comes before the end of the catch, and is there held by a small tube in
the end of the catch F, and by a small rod V set on the piece E, and
passing into an opening made in the washer W. This arrangement,
resulting in the friction of planc surfaces only, prevents any noise or
shock. In the catch F the small square end, by which it is kept from
turning, passes into a small projection on the end of the piece E.
In witness whereof, I, the said William Edward Gedge, have herc-
unto set my hand and seal, this Twenty-eighth day of July, in the
year of our Lord One thousand eight hundred and seventy-three.