IMPROVEMENTS IN ROLLER SKATES
Year: 1876

page_text: LETTERS PATENT to James Joseph Lesware, of 4, London Bridge Road, Irish-
town, Dublin, Ireland, for the Invention of "IMPROVEMENTS IN ROLLER
SKATES."
d the 11th August 1876, and dated the 12th February 1876.
PROVISIONAL SPECIFICATION left by the said James Joseph Lesware at
the Office of the Commissioners of Patents on the 12th February 1876.
JAMES JOSEPH LESWARE, of 4, London Bridge Road, Irishtown, Dublin, Ireland.
"IMPROVEMENTS IN ROLLER SKATES."
This Invention consists in certain arrangements of mechanism forming the under
parts of roller skates, as follows:-To the toe and heel of the stock or footboard I.
affix plates of suitable material carrying bearings, into which I insert metal arms,
and I cause said metal arms to oscillate transversely or laterally at the will of the
skater; to the centre of said metal arms I attach the carriage frames, each frame
carrying two wheels, by means of a pivot on which said carriage frames are caused
to move in a circular direction and form sharp gyrations, according to the amount
of tilting of the footstand.
From the plate attached to the stock I carry a fork verfically into which a
projecting lever from the carriage frames works, and which lever imparts the
curvilinear motion to the wheels, as before described. Between the plate attached
to the footstand and the transverse oscillating arm I affix springs for the purpose of
bringing the skate to an upright or to its normal position.
.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said James Joseph Lesware in the Great Seal Patent Office on the 12th August
1876.
JAMES JOSEPH LESWARE, of 4, London Bridge Road, Irishtown, Dublin, Ireland.
"IMPROVEMENTS IN ROLLER SKATES."
This Invention consists in certain improvements of mechanism forming the under
parts of roller skates, in such a manner that curves and other evolutions may be
performed with more ease than heretofore, also in adapting or applying steel springs
to skates for the purpose of controlling the convergence of the axis and causing the
said axis to return to a square or rectangular position after the displacement caused
by any gyration or evolution performed by the skater.
ГДА

page_text: The illustrative Sheet of Drawings which accompanios this description shows the
manner by which I propose to effect the above objects.
Figure 1 is a side elevation; Figure 2, a longitudinal section; Figure 3, an end
view; and Figures 4, 5, and 0, are detail views of a roller skate constructed
according to my said Invention.
A, A, represent the stock or footstand of the skate, and R, R, the rollers or wheels
upon which the skate is supported and runs; B represents the metal brackets or
hangers, which are firmly secured to the under side of the stock, one near the toe,
the other near the heel of the same, by means of the screws y. These brackets are
shaped as seen in Figures 4 and 5, and carry by means of the pine the swinging
arm C, so that the latter is capable of oscillating in a transverse vertical plane
about its said longitudinal axis or pin e; D, D, represent the carriage frame which
supports the rollers R on their axles i, and which are fastened to the swinging
arm C by means of a pivot or joint piece f which passes loosely through the upper
bar of the carriage frame and is jointed rigidly to the under side of the said
swinging arm, so as to be capable of revolving; in a plane horizontal to the skating
surface L is a stud on the under side of the top cross bar of the carriage frame, as
represented in Fig. 3, from which projects a tongue G which passes into a slot or
opening pin the lower end of the guide lever H, Fig. 5. These guide levers form
one piece with the brackets B, so that when the stock or footboard is tilted to the
right or left the said guide lever is necessarily thrown out of its vertical position,
carrying with it the tongue G, thereby causing the axles to converge and form radii
of a circle: S represent flat steel springs, which are fastened in the centre to the
brackets B, and are segmental in shape, having their free ends pressing on the
extremities of the swinging arm, thereby serving to control the tilting of the
footboard in such a manner that the footboard will be returned to its upright or
horizontal position after it has been depressed on the one side or the other by the
skater when performing curves or other evolutions. t represent stop lugs projecting
downwards from the brackets B, for the purpose of coming into contact with the
upper cross bar of the carriage frame, and thus limiting the tilting of the stock or
footstand.
I would here remark that in some cases for the purpose of self-lubrication I
construct the axles i of a hollow bar of metal with an aperture n in the middle,
closed by a thumbscrew and a series of holes in the parts of same, round which the
rollers rotate; I pad the extremities of the axles inside with wadding or other
suitable material, so that when oil is introduced through the aperture n the wadding
becomes saturated and gives out oil through the above mentioned series of holes,
according as it may be required for the purpose of lubricating the journals of the
wheels.
Having now described the nature of my said Invention, and the mode in which
the same may be carried into effect, I state I do not confine myself to the precise
details herein shown and described, as the same may be varied without departing
from the character of my Invention, but what I claim is the mounting of the
carriage frames of a roller skate to the swinging arm; the employment of the said
swinging arm; the application of steel springs; the method of self-lubrication; and
finally the construction and arrangement of a roller skate, substantially as herein
described and set forth.
In witness whereof, I, the said James Joseph Lesware, have hereunto set my
hand and seal, this Tenth day of August, in the year of our Lord One
Witness,
J. ANGELO FAKIE. -
JAMES JOSEPH LESWARE, (L.S.)