Improvements in or connected with the Hubs and Spokes of Cycle Wheels.
Year: 1893

page_text: Date of Application, 15th Aug., 1893
Complete Specification Left, 12th May, 1894-Accepted, 28th Juy, 1894
PROVISIONAL SPECIFICATION.
Improvements in or connected with the Hubs and Spokes of
Cycle Wheels.
MICHEL BAJOCCHI Gunsmith to H.H. The Khedive Cairo Egypt do hereby
declare the nature of this invention to be as follows:
-
°
This invention is for the purpose of strengthening the spokes of any cycle hub
by means of taking off the strain at the part of spokes that are screwed, either
by a part-split screw nipple, which may be fitted into the hub, or on a set-off rim
or ring attached to the hub, or the hub may have a plate with rim, or two half
plates or sections of plates, screwed on outside or inside, or both, of hub, with slots
according to number of spokes, to allow the spokes to be held fast, this preventing
the strain from acting on the screwed part of spokes, or there may be pieces of
metal fitted between each two spokes with grooves at each side to fit spokes, and
held in place by a centre screw these parts may be made of any metal. The
advantage of this arrangement is that in case of broken spokes the part can be
removed without injury to hub of cycle, sufficient of screw end being left outside
the hub to admit of taking hold for extracting.
Dated this 14th day of August 1893.
COMPLETE SPECIFICATION.
Improvements in or connected with the Hubs and Spokes of
Cycle Wheels.
I, MICHEL BAJOCCHI, Gunsmith to H.H. The Khedive, Cairo, Egypt, 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 is for the purpose of strengthening the spokes of any cycle hub
by means of taking off the strain at the part of spokes that are screwed, either by
part split screw nipple, which may be fitted into the hub, or on a set-off rim or ring
attached to the hub, or the hub may have a plate with rim, or two half plates or
sections of plates, screwed on outside or inside, or both, of hub, with slots according
to number of spokes, to allow the spokes to be held fast, this preventing the strain
from acting on the screwed part of spokes, or there may be pieces of metal fitted
between each two spokes with grooves at each side to fit spokes, and held in place
by a centre screw, these parts may be made of any metal. The advantage of this
arrangement is that in case of broken spokes the part can be removed without
injury to hub of cycle, sufficient of screw end being left outside the hub to admit of
taking hold for extracting.
In order that my invention may be well understood I will now proceed to
describe the same by referring to the accompanying drawing on which the same
letters of reference indicate the same or corresponding parts in all the figures.
Figs. 1, 2, 3, 4 and 5 illustrate that arrangement of carrying out my invention
in which the spokes are strengthened by a part split screw nipple fitted into the
hub. Of these figures
Fig. 1 represents a portion of the wheel hub and one of the spokes with its.

page_text: Fig. 2 18 a cross section of a portion of the wheel hub through one of the holes in
which the spoke and nipple fit;
Fig. 3 is a perspective view of a portion of the wheel hub and spoke and
nipple ;
Fig. 4 shews the end of the spoke and nipple separately and Fig. 5 shews the
said nipple in cross section.
.A is the bub, B is the spoke, and C is the part split screw nipple. The nipple C
is screwed into the upper part of the hole a' in the hub A, in the lower part a² of
which the spoke B is screwed. The screwed part c' of the nipple C is made
slightly taper and split for a certain distance from the end so that when screwed
into the hole at the nipple will grip the spoke tightly and support the same, so that
if the spoke B should break the fracture will occur outside the nipple Ċ which
latter can then be removed from the hub leaving sufficient of the spoke B projecting
beyond the hub to admit of taking hold for extracting.
Figs. 6, 7, 8 and 9 illustrate that arrangement of carrying out my invention in
which the spokes are strengthened by a part split screw nipple fitted into a set-off
rim or ring attached to or formed with the hub. Of these figures
Fig. 6 represents a portion of the wheel hub with the set-off rim or ring
attached thereto and one of the spokes with its nipple fitted in the set off rim
or ring.
Fig. 7 is a perspective view of a portion of the wheel bub with the set-off rim or
ring, spoke and nipple.
Fig. 8 shews the end of the spoke and nipple separately and Fig. 9 shews the
said nipple in cross section.
In this arrangement of my invention the nipple C is screwed into the set-off rim
or ring D which is soldered or otherwise fixed to or formed with the hub A into
which latter the spokes B are screwed as usual. It will be seen that this arrange-
ment of my invention has the same effect as that above described with reference to
Figs. 1, 2, 3, 4 and 5 as if the spoke B should break the fracture will occur beyond
the outer end of the nipple C and then when the nipple is removed there will be
sufficient of the spoke B projecting beyond the set-off rim or ring D to admit of
taking hold for extracting.
Figs. 10, 11, 12 and 13 illustrate that method of carrying out my invention in
which the spokes are strengthened by a plate with rim or two half plates or sections
of plates screwed on to the outside or inside of the hub, or on both the inside and
outside of the hub, with slots according to the number of spokes to allow of the
spokes to be held fixed thus preventing the strain from acting on the screwed part
of the spokes. Of these figures
Fig. 10 is an end view of the exterior of the hub with a half plate fixed thereto;
Fig. 11 is an interior view of the same; Fig. 12 is an exterior view of the said half
plate and Fig. 13 is an interior view of the same.
The said plate or half plate or section of plate is marked E and is made rather
larger in diameter than the hub A and with an outer flange e¹ in which are the
slots corresponding with the number of the spokes B and in which the spokes fit
the said plate or plates E being fixed to the hub A by screws for by other means.
It will be seen that by this arrangement if the spoke should break the fracture will
occur outside the hub A so that the part of the broken spoke projecting beyond the
hub A can be gripped for extracting.
Figs. 14, 15 and 16 illustrate that arrangement of my invention in which the
spokes are strengthened by pieces of metal fitted between each two spokes the said
pieces of metal being made with grooves at each side to fit the spokes and held in
place by a screw. Of these figures,
Fig. 14 is a perspective view of a portion of the wheel hub and spokes with some
of them strengthened by the pieces of metal fitted in between the spokes. Fig. 15
shews one of these pieces of metal separately and Fig. 16 is one of the screws. for
fixing the same.
It will be seen that the pieces of metal G are fitted between the spokes and' made

page_text: with grooves marked g'at each side to fit against the spokes these pieces of metal G
being held in place by the screws / screwed into the hub between the spokes. If a
spoke should break the fracture will occur outside the hub A and then when two
of the pieces D have been removed the portion of the spoke B which projects.
beyond the hub A. can be gripped for extracting.
Having now particularly described and ascertained the nature of my said inven--
tion and in what manner the same is to be performed I declare that what I.
claim is :-
In combination with the hubs and spokes of cycle wheels, the employment of the
means substantially as herein described arranged to support the unscrewed portions.
of the spokes which project beyond the hub, and thus take the strain off the
screwed portions in the hub, so that if any of the spokes break such fracture will
be outside the hub and leave sufficient of the spoke projecting to admit of taking
hold for extracting the broken off end of the spoke from the hub, as hereinbefore.
set forth.
Dated this 11th dow of M 1904
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.