New or Improved Fittings for Transforming Ordinary Cycles into a Sledge for use on Snow or Ice or into a Home-trainer.
Year: 1899

page_text: Date of Application, 25th Feb., 1899-Accepted, 9th Dec., 1899
New or Improved Fittings for Transforming Ordinary Cycles into a
Sledge for use on Snow or Ice or into a Home-trainer.
I, CARL DANNEHL, Pensioner, of Neuhäuser, East Prussia, in the Empire of
Germany, do hereby declare the nature of this invention and in what manner
the same is to be performed to be particularly described and ascertained in and
by the following statement:-
This invention has for object new or improved fittings by means of which it
is possible to transform an ordinary cycle into a sledge for use on snow or ice or
into a home-trainer.
In the annexed drawings, Fig. 1, represents in side view a cycle fitted with the
new. arrangement.
5
Fig. 2, is a back view...
Eigs. 3 to 11 represent particular constructions, in detail, of the parts.
a is, the runner or shoe of the sledge for the front-wheel, secured to the wheel
in proper manner, for example, by clamps, and provided on its front part with a
projection piece u, for the protection of the tyre..
- 6,. is a sledge frame, on which is supported the cycle by means of the struts c.
The tie-bars. d, of the-cycle frame will bear upon and have support on projections
of-bars c, fitted with felt, leather or the like whereupon there is obviated side
motion of the cycle on the sledge. The back wheel which serves as a driving wheel
is provided with the spiked sheath or cover e, as follows Figs. 6, 7, 10 and 12
show. details of the parts, which can be connected together in..a suitable manner.
It is. advantageous, to consider the usual sizes of the pneumatic tyred cycles so
that the spiked or sheath-cover can be applied as well on cycles with wheels of
26 inches as on those of 28 inches in diameter. The spiked sheath in cross
section (Fig. 10) corresponds to the profile of the cycle tyre. and, to secure the
same, the air must first be allowed to escape from the pneumatic tyre, then the
separate sections or parts of the spiked sheath can be put on and be connected
together.
An example of such attachment means, with tongue pieces of flaps and slits
or openings, combined with headed screws, is represented in Figs. 11 and 12, in
approximately full size. “After having thus closed the spiked sheath the pneumatic
tyre is to be again filled with air and applies itself therefore to the inner groove
or contour of the spiked sheath, so that there is provided a reliable connection
between the driving wheel and its sheath, without using special fastening means
between the two parts. The spikes t, on the sheath e, are purposely bent forward
in direction of the course of the cycle to, at once, prevent fracture of the same
and to-facilitate the grip on and withdrawal from the ice.
--According to -the nature of the ice or the snow cover, care must be taken to
provide for a proper catch of the spikes of the back driving wheel, and therefore
an arrangement is necessary for a precise adjustment of the back wheel from its
work. Penetration of the spikes is less required when the ice is even, than when
it is rough or when going over snow surfaces. The raising or placing of the

page_text: back wheel in the proper position of elevation can be secured by means of first
turning the lever a, by means of the crank i, and set screw k. This lever h, is
centered on the stud g, of the bearing piece g of the frame; shown clamped
thereto and said lever n, has the extension arms, attached to the traning bars c.
Thus by raising or lowering the lever, can be effected a higher or lower place-
ment of the cycle framing and therefore of the back wheel.
ne front end of the sledge proper b, is provided with a cleanser scraper m.
This consists of vertically disposed steel spring stripes working against each other
sidewise. This cleanser m, clears the way for the back wheel sledge without
finding resistance on the hummocks of the ice and without gathering snow in
front of the sledge.
A quadrangular form, see Fig. P, can be given to the sledge, or the runners of
the sledge can be made shorter and an octagonal form can be given to the fram-
ing, which last form is shown in Fig. 5, in side view, and in Fig. 4, in plan. In
employing this form it is desirable to give to the front and back frame an upward
trend so as to leave the side runners free. The quadrangular form of the sledge
is in many cases preferable, as affording to the runners greater length and con-
sequent advantage in riding over rough surfaces of the ice.
The sledge can also be arranged as carrier to take other persons or goods. For
this 'purpose there can be applied on the sledge a foot board, or platform and a
scat, as now used with racing sledges, or an extension of the sledge can be used
for carriage of goods.
**
According to differing sizes-of-the-cycle-an-adjustability-of-the-supporting
bars c, is desirable. For this purposes said bars c, can be extended or shortened
-by-the-sliding telescopic parts,_and_w, which can be fixed by means of the
wing-nut n, after the adjustment. In such supporting bars c, can be inserted
-springs-z, for-purpose of relieving shock when going upon rough ground.
In the arrangement shown in Figs. 8 and 9, the spring z, lies, under the head-
stock, the motions whereof in its length can be restricted, by means of a pin
in a slot of the cover tube w..
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o, is a pole, of metal, or wood or the same combined serving as the connection
between the sledge b, and the stem of the front fork. It is contemplated, to
arrange on this pole o, a regulating screw tightening nut such as o!, or the like,
by means of which the, pole can be lengthened or shortened, according to the size
or the cycle. As shown the pole is clamped to the front fork-bar and hinged, as
conveniently may be to the sledges.
A. home" training apparatus can be combined with the sledge b, consisting
of two pairs of bearing blocks and the running rollers p, q, mounted removably,
in any suitable way, on the parallel bars r, s; or the bars r, s, may be removable
when the home trainer is not required for use. The bearings of the rollers. p, q,
may be made movable on the bars r, s, so as to be fixed apart according to the
diameter of the back wheel or distance of the wheels apart. This training appa-
ratus can be applied to the sledge b, when exercise has to be made in a room or
enclosed space. In using this home-trainer" device the spiked sheath is to be
taken from the back wheel and the same is to be let down in its bearings so far
that it may rest on the rollers p, q, so that, by "treadling," movement of the back
wheel is possible without effecting a forward motion of the cycle. The resistance
in the training device and practise can be increased or diminished by setting the
raising or lowering frame of the cycle relatively to the rolls p, q: “
The dotted lines of Figs. 1, and 3, indicate the arrangement of the said train-
ing apparatus.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. The new or improved sledge apparatus for cycles consisting of a shoe sledge

page_text: runner a, for the front wheel a spiked sheath e, for the back wheel, and a sledge
framing b, with supporting bars c, combined with the bar d of the cycle frame
so as to adjust the wheel sheath e, and spikes in proper relative contact with the
ice surface by means of the lever g, h, i, operated from the cycle seat all con-
structed combined and operating as and for the purpose substantially as set forth.
2. In a sledge device for cycles the spiked sheath e, for the wheel tyre made
in circumferential sections, and having an inside face of cross section correspond-
ing to the profile of the wheel tyre; the said several sectional arc portions of the
spiked sheath e, having intermediate attachment means, and being placed around
and connected together over and upon the pneumatic tyre cover before the tyre
is inflated, the inflation serving as the securing means of the spiked sheath e, to
the driving wheel periphery, all constructed, combined and operating substantially
as and for the purpose set forth.
3. In cycle sledge apparatus as set forth the combination of the snow clearer m,
with the sledge b, and the trailing connection o, consisting of the spring metal
strips placed together side by side as and for the purpose specified.
4. With a cycle sledge apparatus, as set forth the combination of a stationary
training apparatus, consisting of the rollers p, q, carried in side bearings, on the
bars r, s, which can be applied to the sledge frame b, and between which said
rollers p, q, and the cycle driver wheel a varied resistance or pressure can be
set up by the adjustable side frame c, combined with the cycle frame bar d, and
the lever h, l, g, substantially as and for the purpose set forth.
Dated the 24th February 1099.
For the Applicant,
WALTER A. BARLOW,
306, High Holborn, London, W.C.