IMPROVEMENTS IN ROLLER AND OTHER SKATES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
We CARL FRIEDRICH LEONHARDT Merchant LUDWIG GÜHRING Shoemaker
WILHELM KÖHRER Coal dealer GOTTLOB NALLINGER owner of a wingard all of
Stuttgard, THEOBALD NAGEL Private Gentleman of Cannstatt and THEODOR GACK
Actuary of the Administration in Nagold, (Germany,) do hereby declare the nature
of our said invention for IMPROVEMENTS IN ROLLER AND OTHER SKATES, to be as
follows:-
The present invention consists in the roller-skate being provided with one roller,
which is of about 8 cm. in diameter and is fixed in the middle of the rail of the
roller-skate. Further in the application of an auxiliary or brake roller at both
'ends of the rail. The hinder auxiliary roller can be replaced by a pair of rollers
on one and the same shaft. Another innovation consists in the application of
rubber buffers between the rail, which bears the running- & brake rollers and
between the plate on which the foot rests.
In order to avoid the use of straps on roller-skates or also on skates we have
invented peculiar holders, which consist of an eye nailed to both sides on the soles
of the boot etc., the double sole being nailed on over them, and a corresponding
stud or hook screwed on to both sides of the roller-skate or skate, so that on
putting on the roller-skate or skate the stud or hook catches into the eye.
This method of fastening is better and more elegant than that by means of
straps.
A final innovation is the application of rubber rings of rectangular cross section
burnt on to the running- & brake rollers.
The friction surface is thus enlarged and a quicker & surer stopping in skating is
thereby attained,

page_text: COMPLETE SPECIFICATION.
We, CARL FRIEDRICH LEONHARDT merchant LUDWIG GUHRING, Shoemaker
WILHELM KÖHRER coal dealer GOTTLOB NALLINGER all of Stuttgart THEOBALD.
NAGEL Gentleman of Cannstadt and THEODOR GACK actuary of Nagold in the
Empire of Germany, Inventors do hereby declare the nature of our said invention
for "IMPROVEMENTS IN ROLLER AND OTHER SKATES" and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement:-
The present application for Letters Patent has for its object an improved roller
skate having a single principal roller, preferably of about 8 centimetres in diameter.
This wheel is placed in the middle of a frame 6 bearing subsidiary rollors rat
each end designed to prevent either end of the skate from coming in contact with
tho ground when the skater makes a long stroke.
To facilitate the motion and to render it more agreeable, buffers e (Fig. 2) of
india rubber or the like are placed under the foot plates d (Fig. 1) which may if
preferred be made in one piece as shewn in Fig. 2.
:
The modification shewn in Fig. 2 of the accompanying drawings is especially
designed for the purpose of teaching the method of skating on these roller skates:
to secure a quicker and easier method of checking the motion the hind roller l
(Fig. 1) may be replaced by 2 rollers of the same diameter as shewn in Fig. 3. .
In order to increase the speed and diminish the friction, the rollers are provided 1
with flat india-rubber tyres (Fig. 8).
A roller provided with the ordinary circular rubber tyre may also be used if
preferred. A section of such a roller is shewn at Fig. 4.
In place of the straps usually employed to attach roller skates or ordinary skates
to the foot, we have devised the improved fastening device consisting of metal
sockets or boxes, preferably of rectangular section inserted at each side of the boot
between the soles as shewn at Figs. 5. 6 and 7 of the drawings.
This contrivance consists either of a plate a attached to a socket a¹, preferably of
rectangular section, or it may be constructed in the form of an angular piece b
fitting into the aperture b¹: those sockets being inserted in the boot of the skater
are held firm between the soles & by the piece c being rivetted fast, before the
double sole s¹ is attached. Into these sockets the hooks h of the skate grasp being
actuated by means of a screw, securing a rapid and reliable fastening.
Fig. 5. shews the application of the holder to boots in section and
Fig. 6. the same in side view.
Fig. 7. shews its application to a boot sole viewed from beneath.
It should be remarked that the: ring does not project, but is quito countersunk
in the solo.
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same is to be performed, we declare that what
we claim is
1st. In blade and roller skates the above described arrangement of buffers to
minimise shocks and facilitate progression, substantially as described and shewn in

page_text: 2nd. The combination of parts forming the improved mechanism for securing
skates to the boot consisting essentially of a plate and socket, or a bent angular
pieco provided with a slit; which mechanism is let into the boot soles and firmly
fixed, substantially as described and shewn in the annexed drawing.
3rd. The construction of one wheeled roller skates combined with an auxiliary
roller in front and behind, or with a pair of rollers behind revolving on a single
axis, substantially as described and shewn in the annexed drawings.
4th. In roller skates the use of flat india rubber tyres on the rollers.