IMPROVEMENTS IN HORSE CAPSTANS
Year: 1874

page_text: LETTERS PATENT to Wilhelm Heinrich Julius Bergner, of the Firm
of Bergedorfer Iron Works, near Hamburg, for the Invention 'of
"IMPROVEMENTS IN HORSE CAPSTANS."
Sealed the 29th December 1874, and dated the 7th July 1874.
PROVISIONAL SPECIFICATION left by the said Wilhelm Heinrich
Julius. Bergner at the Office of the Commissioners of Patents,
with his Petition, on the 7th July 1874.
I, WILHELM HEINRICH JULIUS BERGNER, of the Firm of Bergedorfer
Iron Works, near Hamburg, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN HORSE CAPSTANS," to be as follows:-
This Invention relates to improvements in capstans of a large size
intended to be actuated by horse or other animal power, and the object
is. to give greater power, increased security, and a more compact arrange-
ment of the various parts than are to be found in the capstans at present
in use.

page_text: 1
The Invention consists in casting the driving wheel of the capstan,
which is of conical form, with a bell-shaped cover, so that the working
parts of the machine are thus throughly protected. The winding
wheel and the first pinion are placed underneath the bell-shaped cover,
and the other parts of the capstan are so placed as to suit this arrange-
ment of the mechanism.
With the above arrangement I sometimes cast or form the lever
holders, especially when great strength and security are required. An
additional or intermediate casting of metal can be used between the top
or head of the capstan and the intermediate gearing can be placed
between the bell-shaped cover above mentioned, and the frame upon
which the driving wheel or shaft for communicating, motion to any
kind of machinery that may be arranged in proximity can be moved.
A small wheel is employed to press upon the main driver to prevent
it jumping out of gear from any cause.
.
.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Wilhelm Heinrich Julius Bergner in the Great
Seal Patent Office on the 7th January 1875.
·
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILHELM
HEINRICH JULIUS BERGNER, of the Firm of Bergedorfer Iron Works,
near Hamburg, send greeting..
"
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of July, in the year
of our Lord One thousand eight hundred and seventy-four, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Wilhelm Heinrich Julius
Bergner, Her special licence that I, the said Wilhelm Heinrich Julius
Bergner, my executors, administrators, and assigns, or such others.
as I, the said Wilhelm Heinrich Julius Bergner, 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
"

page_text: HORSE CAPSTANS," upon the condition (amongst others) that I, the said
Wilhelm Heinrich Julius Bergner, 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 Wilhelm Heinrich Julius Bergner,
do hereby declare the nature of my 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:-.
This Invention relates to horse capstans of any size, which are con-
structed without a vertical rotating axle, which is with the existing
capstans a part very liable to fractures.
My capstans, which are provided either with or without a top bearing,
have a bell or dome-shaped driving wheel, under which the working
parts of the machinery are placed, thus thoroughly protecting them from.
dirt, stones, and other impurities, and giving protection to the workmen
engaged.
The accompanying Sheet of Drawings clearly indicates my. Invention..
Figure 1 represents a sectional elevation of my improved horse.
capstan with top bearing; Figure 2 is an exterior side view; and
Figure 3 a plan of the same. f is the bell or dome-shaped driving:
wheel; q, the top bearing; and t, t, are the pole sockets, which the
horses or other animals yoked to tlie poles cause to rotate. These three
main parts of my machine are connected by the screw bolts c; the
transmission of power from the pole sockets to the driving wheel how-
ever is attained by means of a series of pins connecting in sufficient
strength and number the flanges of the sockets, bearing, and driving
wheel. This construction enables the vertical wrought iron or steel
axle hitherto in use with all sorts of capstans to be dispensed with.
.
The screw bolt c is stepped at its bottom end in a foot socket p, thus
securing the central position of the machinery. The top bearing 9 is `
held in position by beams or bars r, r, firmly bolted to bearers s, s,
sprung across from the front and the rear portions of. the foundation
timber a.

page_text: The outer edge of the bell-shaped cover of the main wheel has a flat
ring-shaped surface v, upon which the presser wheel or roller m is kept
in contact directly over the bevil pinion g to secure accurate working of
the driving gear. The roller m is supported by a standard & and
enclosed in a shield n, which may be connected to the sheet-iron pro-
tecting ring k.
+
Figures 4, 5, and 6 représent respectively a sectional elevation, exterior
side view, and a plan of a modified construction of my horse capstans.
:
In this machine no top bearing is employed, and the bell-shaped
driving wheel fand the pole sockets t, t, are formed in one casting and 1
dropped over a central pin c, which in this case is a fixture to a base.
plate w bolted to the timber foundation a. This modification greatly
simplifies my capstans, and I prefer this construction with the smaller
sizes of my apparatus. The presser roller m is arranged similar to the
one used with the capstan containing a top bearing, as just before: 1
explained.
And having now described the nature of my said Invention, and in
what manner the same is to be performed, I declare that I claim,-
First. The construction and arrangement of parts composing a horse
capstan, as herein-before described with reference to Figures 1, 2, 3, of 2
the annexed Drawings, especially the bell or dome-shaped driving wheel
for the protection of the gearing in combination with the top bearing
and central bolt, instead of a vertical shaft hitherto used, as and for the.
purposes set forth.
Secondly. I claim the modified construction of horse capstans 2
described with reference to Figures. 4, 5, 6, of the annexed Drawings,
in combination with the presser roller, as and for the purposes set
forth..
.
In witness whereof, I, the said Wilhelm Heinrich Julius Bergner,
1
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