IMPROVEMENTS IN THE WHEEL PLATES OF CARRIAGES
Year: 1874

page_text: LETTERS PATENT to François Garlon, of Langon, in the Republic
of France, Coach Builder, for the Invention of "IMPROVEMENTS IN
THE WHEEL PLATES OF CARRIAGES."
Scaled the 26th January 1875, and dated the 7th September 1874.
PROVISIONAL SPECIFICATION left by the said François Garlon at
the Office of the Commissioners of Patents, with his Petition, on
the 7th September 1874.
I, FRANÇOIS GARLON, of Langon, in the Republic of France, Coach
3 Builder, do hereby declare the nature of the said Invention for "IM-
PROVEMENTS IN THE WHEEL PLATES OF CARRIAGES," to be as follows; that is to
say:
This Invention consists in the application of a ring or cap to the
wheel plates of carriages, the said cap being fixed to the lower circular
or wheel plate of the fore carriage and uniting it to the upper circular or
wheel plate without interfering with the circular movement of the
latter. By this arrangement the turning of the wheel plate is effected
without difficulty, without too great a play, and with little risk of

page_text: becoming disjoined. A great security is also obtained that the body of
the carriage shall not become detached from the fore carriage, and I do
away with perch bolts, the so called patent bolts, and with the slide and
bolt arrangement.
The upper and lower circular or wheel plates work one on the other
as usual; the upper surface of the lower wheel plate is preferably formed
with a groove or channel in which fits and works a corresponding fillet
or projection on the under side of the upper circular plate; the two
plates are held together by a ring forming a cap; this cap is made with
a flange; tlic shoulder of which rests on the upper plate, and the cap is
united to the lower circular plate either by means of screw bolts and
nuts by screwing into the lower plate, or by means of a collar screwing
on to one end of the cap. Suitable grease holes for lubricating are pro-
vided, and also beds, lugs, and projections for connecting the wheel
plates to the fore carriage. A suitable stop is provided for limiting the
turning movement of the wheel plates to a quarter turn, a third of a
turn, or a half turn, according to the nature of the vehicle.
The herein-before described groove in the lower plate and the corre-
sponding fillet or projection on the upper plate may be dispensed with if
required
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said François Garlon in the Great Seal Patent Office
on the 5th March 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FRANÇOIS
GARLON, of Langon, in the Republic of France, Coach Builder, send
grecting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of September, 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
successors, give and grant unto me, the said François Garlon, Her
special licence that I, the said François Garlon, my executors, adminis-
trators, and assigns, or such others as I, the said François Garlon, my
executors, administrators, and assigns, should at any time agree with, and

page_text: 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 THE WHEEL PLATES OF CARRIAGES," upon the condition (amongst others)
that I, the said François Garlon, 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 François Garlon, 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, reference being had to the Drawing hereunto
annexed and to the figures and letters marked thereon, that is to
say :-
This Invention consists in the application of a ring or cap to the
wheel plates of carriages, the said cap being fixed to the lower circular
or wheel plate of the fore carriage, and uniting it to the upper circular.
or wheel plate without interfering with the circular movement of the
latter. By this arrangement the turning of the wheel plate is effected
without difficulty, without too great a play, and with little risk of
becoming disjoined. A great security is also obtained that the body of
the carriage shall not become detached from the fore carriage, and I do
away with perch bolts, the so called patent bolts, and with the slide and
bolt arrangement.
The upper and lower circular or wheel plates work one on the other as
usual; the upper surface of the lower wheel plate is formed preferably
with a groove or channel in which fits and works a corresponding fillet
or projection on the under side of the upper circular plate; the two plates
are, held together by a ring forming a cap, this cap is made with a flange,
the shoulder of which rests on the upper plate, and the cap is united to
the lower circular plate either by means of screw bolts and nuts by
screwing into the lower plate, or by means of a collar screwing on to
one end of the cap. Suitable grease holes for lubricating are provided,

page_text: and also beds, lugs, and projections for connecting the wheel plates to
the fore carriage. A suitable stop is provided for limiting the turning
movement of the wheel plates to a quarter turn or a half turn, according
to the nature of the vehicle.
The herein-before described groove in the lower plate and the corre-
sponding fillet or projection on the upper plate may be dispensed with if
required.
To make my Invention better understood I will now proceed to
describe the same by reference to the accompanying Drawing, in which
Figure 1 is a plan; Figure 2, a section; and Figure 3, a plan of the
under side of the wheel plates of a carriage shewing the connecting ring
or cap fixed to the lower circular or wheel plate by screw bolts and
nuts.
Figures 4, 5, and 6, similar views shewing the ring or cap screwed
into the lower circular or wheel plate.
Figures 7 and 8, sections shewing the ring or cap fixed by means of a
collar screwing on to the lower end of the ring or cap.
Similar letters in all the Figures represent similar parts.
In Figures 1, 2, and 3 A is the lower circular or wheel plate, and B,
the groove or channel in the upper surface of same; C is the upper
wheel plate; and D, the fillet or projection corresponding with and
fitting into the groove or channel B on the lower circular or wheel
plate A; E is the ring or cap formed with a flange, the shoulder of
which rests on the upper plate C, as seen in Figure 2, the under side
of the ring or cap resting on the upper surface of the lower plate A;
F, screw bolts and nuts for bolting the ring or cap E to the lower wheel
plate A, thereby uniting the two circular or wheel plates A and C
together, but allowing them to turn freely one on the other; G, grease
holes which may be placed in any other suitable position, or any other
suitable arrangement for lubricating may be employed; H, H, upper
and lower beds; I, I, I, projections or lugs for connecting with the fore
carriage.
In Figures 4, 5, and 6, the ring or cap E is cut with a screw thread
on the lower part of its periphery which screws into a corresponding
female screw cut in the lower wheel plate A, as shewn in Figure 5. J, J,
holes in the lower end of the ring or cap E for receiving a key for

page_text: applying and removing the ring or cap; K, stop screw; or any other
suitable stop may be employed.
Figure 7 is a section shewing a collar or washer L screwed on to the
lower end of the ring or cap E (for uniting the two wheel plates
together), thereby forming a double cap; or the two parts forming the
double cap may be fixed together by means of screws, rivets, pins, keys,
or hooks. The collar or washer L is provided with four holes for
receiving the key, by which it is screwed on to the cap.
Figure 8 similar arrangement to that shown in Figure 7, but showing
the upper and lower wheel plates formed without the fillet and groove
respectively.
Figures 9, 10, and 11 similar views to those shewn in Figures 4, 5,
and 6, the ring or cap E screwing into the lower wheel plate A. These
Figures show the upper wheel plate C formed with a groove, in which is
placed a washer M under the shoulder of the flange of the cap E, and
the lower wheel plate A formed with a flange N on its outer edge fitting
into a corresponding groove in the upper wheel plate, as shewn in
Figure 10; the object of this flange is to prevent the loss of grease and
the running off of the black oil.
Figure 12, similar arrangement to that shewn in Figures 9, 10, and 11,
except that the wheel plates are formed without the fillet D and
groove B.
The wheel plates fixed together in the manner herein-before described
can turn freely; when required a suitable stop is provided to limit the
turning movement to a half or a quarter turn according to the kind of
vehicle. Washers of suitable material may, if found desirable, be placed
between the two wheel plates.
Having thus described the nature of my said Invention, and the best
means I am acquainted with for carrying the same into effect, what I
claim is,―
Firstly. The employment of a ring or cap for connecting or uniting
the wheel plates of carriages, as herein-before described.
Secondly. The methods of connecting the ring or cap to the lower
wheel plate, substantially as herein-before described and represented in
the various Figures of the accompanying Drawing.

page_text: 1
Thirdly. The forming the upper wheel plate with a fillet or projection
fitting and working in a corresponding groove in the lower wheel plate,
as herein-before described and represented in Figures 2, 5, 9, and 10 of
the accompanying Drawing.
Fourthly. The forming the lower wheel plate with a flange on its
outer edge fitting in a corresponding groove in the upper wheel plate, as
herein-before described and represented in Figures 10 and 12 of the
accompanying Drawing..
In witness whereof, I, the said François Garlon, have hereto set
my hand and seal, this First day of March, in the year of our
Lord One thousand eight hundred and seventy-five.
T