IMPROVE- MENTS IN MACHINERY FOR HOISTING, RAISING, AND LOWERING BUILDING
Year: 1875

page_text: LETTERS PATENT to Henry Batt, of Victoria Road, Kentish Town, in
the County of Middlesex, Builder, for the Invention of "IMPROVE-
MENTS IN MACHINERY FOR HOISTING, RAISING, AND LOWERING BUILDING
33
Sealed the 2nd November 1875, and dated the 10th August 1875.
PROVISIONAL SPECIFICATION left by the said Henry Batt at the
Office of the Commissioners of Patents, with his Petition, on the
10th August 1875.
I, HENRY BATT, of Victoria Road, Kentish Town, in the County of
Middlesex, Builder, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN MACHINERY FOR HOISTING, RAISING, AND LOWERING
BUILDING MATERIALS AND OTHER HEAVY WEIGHTS," to be as follows:-
My Invention of improvements in hoisting apparatus consists in so
arranging a system of spur gearing connected to chain or rope barrels
and driven by strap pulleys that two chain barrels may be used for
lifting weights of any description by single purchase at a quick speed,

page_text: and may also be readily changed so that one of the barrels may be made
to lift much heavier weights at a slower speed, in which case the two
belts, and also the two brakes, are made to act upon one barrel, thus
obtaining much greater power with increased safety."
I construct my improved apparatus with two side frames, carrying
between them on the same horizontal line two chain or rope barrels,
cach barrel divided into two lengths by a flange in the centre. One of
these barrels always works with single purchase; the other may be used
either with single or double purchase, as required. At one end of the
single purchase barrel is fixed a spur pinion, and at the other end a spur
wheel and pinion, with a space between them; this barrel is moveable
horizontally in the direction of its length. Above the barrel is a long
shaft carrying a spur pinion gearing into the large spur wheel, and
driven by belt pulleys from the end. A clip brake partly encircles the
spur wheel to control its action,
To the double purchase barrel are fixed three spur wheels, one outside
the frame, and the other two, one at each end within the frame.
Above the barrel is a shaft similar to the other, and carrying two spur
pinions, one large and the other small, with strap pulleys at the end of
the shaft.
When working single purchase the large pinion is in gear with one
of the large wheels similarly to the other barrel, but when required for
double purchase the shaft is slided along, so that the large pinion is out
of the gear and the small pinion comes into gear with the large wheel
outside the frame at the same time the other barrel is moved, so that
the pinions on the ends come into gear with the large wheels inside the
frame, the motion then being obtained from the single purchase pulleys
through the first motion pinion and wheel, and then through the end
pinions into the large inner wheels of the double purchase barrel, and
also at the same time from the other pulleys through the small outer
pinion into the large outer wheel, the ratio of gearing between the outer
pinion-and wheel being the same as between the two pairs of pinions and
wheels driven by the single purchase pullies. In this way both belts
are made to act upon the one barrel, so also are both brakes.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Batt in the Great Seal Patent Office on
the 10th February 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
BATT, of Victoria Road, Kentish Town, in the County of Middlesex,
Builder, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing. date the Tenth day of August, in the year of
our Lord One thousand eight hundred and seventy-five, in the thirty-
ninth year of Her reign, did for Herself, Her heirs and successors,
give and grant unto me, the said Henry Batt, Her special license
that I, the said Henry Batt, my executors, administrators, and
assigns, or such others as I, the said Henry Batt, 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, 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 MACHINERY FOR HOISTING, RAISING, AND LOWERING BUILDING MATERIALS AND
OTHER HEAVY WEIGHTS," upon the condition (amongst others) that I, the
said Henry Batt, 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 Henry Batt, 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 thereof, that is to say :-
My Invention of improvements in hoisting apparatus consists in so
arranging a systemi of spur gearing connected to chain or rope barrels
and driven by strap pulleys that two chain barrels may be used for
lifting weights of any description by single purchase at a quick speed,
and may also be readily changed so that one of the barrels may be made

page_text: to lift much heavier weights at a slower speed, in which case the two
belts, and also the two brakes, are made to act upon one barrel, thus
obtaining much greater power with increased safety.
The accompanying Sheet of Drawings, in which Figure 1 shews an
end elevation, Figure 2 a front elevation, and Figure 3 a plan, clearly
illustrate the action and mode of construction of my improved apparatus,
which consists of two side frames A, A, carrying between them on the
same horizontal line two chain or rope barrels B and C, each barrel being
divided into two lengths by a flange in the centre. These barrels are so
arranged that both may be worked together with single purchase, or
either of them may be worked by double purchase by moving clutches
on the shaft, as shewn. At one end of each barrel is a spur wheel, and
at the other end a spur wheel and pinion. The pinion in each case may
be thrown in or out of gear by a sliding clutch. Above or below the
barrels is a long shaft carrying at each end a spur pinion and a set of
belt pullies, the pinions gearing into spur wheels on the barrels. A clip
brake partly encircles a spur wheel on each barrel to control their
action.
When required for single purchase the pinion on the bottom shaft
gears into the inside wheel on the barrel at the same time the pinion
outside the frame gears into the outer wheel of the other barrel, so that
.each strap and system of gearing is brought to act upon cach barrel at
the same time, giving great power and considerably lessening the risk of
breakage through failure in any of the teeth of gearing.
When required for double purchase the pinion on the bottom shaft
gears into the outside wheel on the barrel, turning the barrel and the
pinion on the other end, which gears into the outer wheel of the other
barrel, driving that barrel by double purchase, the first barrel at the
same time being driven by single purchase.
Having now particularly described and ascertained the nature of my
Invention, and how the same may be put into operation, I would have it
understood that what I claim and desire to secure by the herein-before
in part recited Letters Patent is,―
First. The use and application of an improved hoisting apparatus with
double barrels, each working by single purchase, but with a double set
of belt pulleys and gearing working each barrel, as herein-before
described and illustrated by the accompanying Drawings,

page_text: apparatus with double barrels, either of which may be made to work by
double purchase while the other is working single purchase, substan-
tially as herein-before described and ascertained by the accompanying
Drawings.
In witness whereof, I, the said Henry Batt, have hereunto set
my hand and seal, this Tenth day of February, in the year of our
Lord One thousand eight hundred and seventy-six.
Witness,
CHARLES BARLOW,
Patent Agent,
23, Southampton Bldgs.,
London,
'W.C.
HENRY BATT.. (L.S.)