IMPROVEMENTS IN APPARATUS FOR OBTAINING MOTIVE POWER
Year: 1859

page_text: LETTERS PATENT to Frederick Angerstein, of Kennington, in the County
of Surrey, Esquire, Robert Clegg, of Islington, in the County of Mid-
dlesex, Gentleman, and George Thorrington, of Egham, in the said
County of Surrey, Lighterman, for the Invention of "IMPROVEMENTS IN
APPARATUS FOR OBTAINING MOTIVE POWER."
Sealed the 4th November 1859, and dated the 6th May 1859.
PROVISIONAL SPECIFICATION left by the said Frederick Angerstein,
Robert Clegg, and George Thorrington at the Office of the Commis-
sioners of Patents, with their Petition, on the 6th May 1859.
FREDERICK ANGERSTEIN, of Kennington, in the County of Surrey, Esquire,
ROBERT CLEGG, of Islington, in the County of Middlesex, Gentleman, and
GEORGE THORRINGTON, of Egham, in the said County of Surrey, Lighterman,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
APPARATUS FOR OBTAINING MOTIVE POWER," to be as follows:-
Our Invention consists of one or more cog wheels upon a shaft revolving
loose upon the shaft, with a rim or rims at the side, and at the side of the rim
or rims a square shaft to take a racket, star, or pawl wheel on a square box
to fit two or more pawls, which are fixed and allowed to slide upon the square..
shaft to catch to the top or inner rim of the cog wheel, running loose each
way of its axis. On the other side of the wheel may be fitted pawls or ratchet
wheels to reverse the motion, of the same description as above described. To
cause the cog wheel to work, we employ two horizontal toothed racks on the

page_text: top and bottom of the cog wheel in contrary directions, the ends of which
rest upon or against extending arms, to work in suitable slides or grooves the
reverse way to each other, to which motion is given by a lever fixed to two
horizontal levers, and arranged in such a manner that will take the bearing
of the whole of the leverage on the driving or cog wheel. On the shaft is
placed a fly wheel or drum, of a suitable size, which is made to revolve at a
required speed by the action of the cog wheel upon the pawls or ratchet
wheels, to impart motion to the wheel of a vehicle by bands, chains, or other
suitable contrivance, of an elastic pressure, or otherwise, by which we shall
give additional leverage from the wheels and the ground.
By various modifications in the application of this motive power, and the
proper adjustment of its parts, it may be used for all purposes to which steam
or other power is at present applied, or for increasing such power to an almost
unlimited extent.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Frederick Angerstein, Robert Clegg, and George Thor-
rington in the Great Seal Patent Office on the 5th November 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, FREDERICK
ANGERSTIEN, of Kennington, in the County of Surrey, Esquire, ROBERT
CLEGG, of Islington, in the County of Middlesex, Gentleman, and GEORGE
THORRINGTON, of Egham, in the said County of Surrey, Lighterman, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixth day of May, in the year of our Lord One
thousand eight hundred and fifty-nine, in the twenty-second year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us,
the said Frederick Angerstien, Robert Clegg, and George Thorrington, Her
special licence that we, the said Frederick Angerstien, Robert Clegg, and
George Thorrington, our executors, administrators, and assigns, or such others
as we, the said Frederick Angerstien, Robert Clegg, and George Thorrington,
our 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, 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 APPARATUS FOR OBTAINING
MOTIVE POWER," upon the condition (amongst others) that we, the said Fre-

page_text: derick Angerstien, Robert Clegg, and George Thorrington, our executors or
administrators, or one of us, by an instrument in writing under our or one of
our, 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 George Thorrington, 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 fol-
lowing statement:-
This Invention relates to the employment of certain mechanical arrange-
ments for obtaining and transmitting great speed to machinery, at the same
time that there is produced by the said improvements very much less friction
and consequent loss of power than by the arrangements usually adopted of
pinion or spur wheels, or bands revolving round pullies of different diameters;
and the said Invention is applicable to steam engines, in which case the crank
is wholly discarded, and likewise to every other description of machinery where
speed is an object.
The above objects are obtained by the use of diagonal arms working on
centres, which by the reciprocal action produce an increase of speed in pro-
portion to the number employed, the said diagonal motion being converted
into a revolving one by means of one or more cog wheels upon a shaft
revolving loose with a rim or rims at the side, and on the side of the rim or
rims a ratchet, star, or pawl is affixed to a shaft on a square box to fit two
or more pawls which are affixed or allowed to slide on the shaft to catch the
top or inner rim of the cog, which runs loose each way of its axis. These
pawls or ratchets are so fixed as to reverse the motion by any suitable con-
trivance for throwing the pawls alternately out of gear. To cause the cog
wheels to work, we employ two toothed racks worked from opposite points on
the top and bottom of the cog wheels, to equalize the speed on the rotating
shaft, the said toothed racks being attached to and propelled by the diagonal
arms before described.
This apparatus may be most advantageously worked to give motion to any
carriage or vehicle, in which case motion is given to the diagonal arms by
means of a cross lever fixed to two horizontal levers, so that it will take the
bearing of the whole of the leverage of the driving or cog wheel; but our
Invention may be applied, as stated before, to any machinery requiring speed,
either with or without the levers just mentioned.

page_text: In some cases we prefer using a toothed belt or endless chain passing over
two drums fixed on different shafts, in place of the toothed rack and ratchet
wheel before mentioned.
And in order that the said Invention may be properly understood, we will
now proceed to describe the several Figures on the Sheet of Drawings here-
unto attached.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a plan view; A, A, are the diagonal arms, and B the centre on
which they move, the action being reciprocal. Fig. 2 is a side elevation,
showing the mode of converting the direct reciprocal motion of the diagonal
arms into a revolving one, by means of a toothed rack working on a loose cog
wheel in connection with pawls and ratchet wheels, the latter being fixed on
the revolving shaft; C is the toothed rack; D, the cog wheel; E, the pawls;
F, the ratchet wheels; and G, the rotating shaft. Fig. 3 is a side elevation,
and Fig. 4 a plan view, showing the arrangement of a series of diagonal arms
for obtaining great increase of speed with very small amount of friction,
which arrangement is applicable in all cases and to every description of
machinery to which it is desired to impart rotary motion; H, H, are the
diagonal arms; J, the toothed racks; K, the loose cog wheels; L, the
pawls; M, the ratchet wheels fixed on the shaft N, to which rotary motion is
communicated.
Having thus stated the nature of the said Invention, and the manner of
carrying the same into practical effect, we would have it understood, that
what we claim is, the mode herein described,-
First, of transmitting direct and rotary motion by means of diagonal arms
working in connection with a rack or racks and toothed wheels, as herein
described.
Second, the application of belts, bands, or endless chains in connection with
the diagonal arms before mentioned.
In witness whereof, I, the said George Thorrington, have hereunto set
my hand and seal, this Fifth day of November, in the year of our
Lord Oue thousand eight hundred and fifty-nine.
GEORGE THORRINGTON. (L.S.)