Improvements in connecting together the Parts of the Frames of Bicycles, Tricycles, and other Velocipedes, and other Vehicles.
Year: 1897

page_text: Date of Application, 2nd Sept., 1897
Complete Specification Left, 29th Apr., 1898-Accepted, 9th July, 1898
Improvements in connecting together the Parts of the Frames of
Bicycles, Tricycles, and other Velocipedes, and other Vehicles.
I, WILLIAM HENRY NELSON, of Fern Villa, Butts, Coventry, in the County of
Warwick, Cycle Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention has reference to the securing of the metallic tubes of the frames of
bicycles, tricycles and other velocipedes and other vehicles such for example as
motor vehicles in their lugs and consists of the construction and arrangement of
the parts of a joint hereinafter described by the use of which joints the tubes are
readily and firmly secured in their lugs without brazing. The said joints also
permit the parts of the frames to be detached when described for repair or for
other purpose.
In constructing a brazeless detachable joint according to my invention I make
the ends of the tubes to be inserted in the lugs and the interiors of the said lugs
slightly conical and I form on the part of the tube external to the lug a screw
thread, preferably a right handed screw thread. I also screw thread the exterior
of the lug with a screw thread of an opposite direction to that on the tube. I
employ for the fixing of the tube in the lug an internally screwed ring or collar
preferably of steel having two different diameters internally, the smaller screwed
hole in the ring or collar being of the size of and having a screw thread corres-
ponding to that on the exterior of the tube and the larger screwed hole in the
said ring or collar being of the size of and having a screw thread corresponding to
that on the exterior of the lug.
The action of the joint described is as follows. The conical end of the tube
is passed through the ring or collar and is presented to its lug.
The ring or
collar is turned in the direction proper for it to engage or screw on the screws of-
the tube and lug and the two parts are thereby drawn together and may be made
to bind on one another with any degree of tightness.
I prefer to mill the conical end of the tube externally and the interior of the
lug to increase the bite between the said tube and lug and where, for the purpose
of increasing the strength of the parts joined, it is thought necessary or desirable
the conical end of the tube may be fluted.
Dated this Second day of September 1897
W. T. WHITEMAN,
Agent for the Applicant.

page_text: Improvements in connecting together the Parts of the Frames of
Bicycles, Tricycles, and other Velocipedes, and other Vehicles.
I, WILLIAM HENRY NELSON, of Fern Villa, Butts, Coventry, in the County of
Warwick, Cycle Engineer, do hereby declare the nature of my invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:-
My invention has reference to the securing of the metallic tubes of the frames of
bicycles, tricycles and other velocipedes and other vehicles such for example as
motor vehicles, in their lugs and consists of the construction and arrangement of
the parts of a joint hereinafter described by the use of which joints the tubes are
readily and firmly secured in their lugs without brazing. The said joints also
permit the parts of the frames to be detached when desired for repair or for
other purpose.
In constructing a brazeless detachable joint according to my invention I make
the ends of the tubes to be inserted in the lugs and the interiors of the said lugs
slightly conical and I form on the part of the tube external to the lug a screw
thread, preferably a right handed screw thread. I also screw thread the exterior
of the lug with a screw thread of an opposite direction to that on the tube. I
employ for the fixing of the tube in the lug an internally screwed ring or collar
preferably of steel having two different diameters internally, the smaller_screwed
hole in the ring or collar being of the size of, and having a screw thread corres-
ponding to that on the exterior of the tube, and the larger screwed hole in the
said ring or collar being of the size of and having a screw thread corresponding to
that on the exterior of the lug.
The action of the joint described is as follows. The conical end of the tube
is passed through the ring or collar and is presented to its lug. The ring or
collar is turned in the direction proper for it to engage or screw on the screws of
the tube and lug and the two parts are thereby drawn together and may be made
to bind on one another with any degree of tightness.
I prefer to mill the conical end of the tube externally and the interior of the
lug to increase the bite between the said tube and lug and where for the purpose
of increasing the strength of the parts joined, it is thought necessary or desirable
the conical end of the tube may be fluted.
. Figures 1 and 2 represent in elevation and longitudinal section respectively,
a portion of the top horizontal tube of a safety bicycle frame fixed in the top lug
of the said frame according to my invention; Figure 3 is a cross section on the
dotted line, Figure 2; Figures 4, 5 and 6 are views of the lug separately,
and Figures 7 and 8 represent a portion of the top horizontal tube in elevation and
cross section respectively; Figure 9 is a section of the internally screwed ring or
collar by which the parts are secured together.
Figures 10, 10, 11, 12, 13, 14, 15 and 16 represent modified arrangements of
my invention hereinafter particularly described.
The same letters of reference indicate the same parts in the several figures of
the drawings.
I will first describe the arrangement Figures 1 to 9 both inclusive.
a is the top lug; 6 a portion of the top horizontal tube and c the internally
screwed ring or collar by which the tube b and lug a are connected together.
The end of the tube b and the interior of the lug into which the said end takes
are made preferably slightly conical and the mouth a¹ of the said lug a is intern-
ally milled (see the vertical and cross sections Figures 5 and 6) and the part 6¹ of

page_text: the exterior of the tube is correspondingly milled (see Figures 7 and 8) to engage
with the said millings a¹.
The part 2 of the tube b and the end a² of the lug a are screw threaded with
opposite screw threads; that is to say, if the screw thread on the part. 2 of the
tube is right handed the screw thread on the end a² of the lug is left handed and
the reverse. In order to secure the two parts a and b together the internally
screwed ring or collar c (Figure 9) is employed. The said ring or collar chas
for about one half its length an internal diameter corresponding to that of the
screwed end a² of the lug a and the other half has an internal diameter corres-
ponding to that of the screwed part 6 of the tube b and the two parts of the ring
or collar are screw threaded for taking on and engaging with the screw threaded.
parts a², respectively.
In connecting the said parts together the internally screwed ring or collar c is
passed on to the conical end of the tube b and the said conical end of the tube is
introduced into the lug a until the internally screwed ring or collar abuts against
the screwed end a² of the lug when by turning the screwed ring or collar in the
direction proper for engaging the screw threads of the said ring or collar with
those of the lug a and tube & the two parts are drawn together with great firmness
the conical end of the tube b binding itself in the hollow conical lug a as best
seen in Figure 2.
I will now proceed to describe the arrangements Figures 10 to 16 both inclusive.
In the arrangement Figures 10 and 10 a brazeless joint of the kind described
with respect to Figures 1 to 9 both inclusive is shown but the tube b is strength-
ened by the use of an internal liner d. The said liner d is introduced into the
tube before the tapering of the end of the same the tapering of the tube and
liner being simultaneously effected. The liner is preferably arranged so that.
its outer end projects slightly out of the tube b the projecting end being subse- .
quently expanded or belled on the end of the tube b as will be best understood by
an examination of the enlarged view Figure 10%; the slipping of the liner d
along the tube b is thus prevented.
The screw thread 62 on the tube 6 may be formed by a rolling process instead.
of by a screw cutting process. A brazeless joint with rolled screw thread on
the tube is represented in Figure 11.
In the arrangements Figures 12, 13 and 14 the screw thread 62 on the tube is
dispensed with.
In the arrangement Figure 12 a shoulder or annular rib is formed on the
tube b, at the part where the conical figure of the end sets in, by brazing or
otherwise fixing to the said tube b a ring or washer 63. The ring or collar c for
this arrangement has one internal screw thread only for taking on the screwed
end a² of the lug a the unscrewed end of the ring or collar c being provided with
an internally projecting flange for engaging with the ring or washer 63. By
the screwing home of the collar c on the end a³ of the lug a the tube b is drawn,
by the engagement of the parts c², 63, into the lug a.
Instead of forming the shoulder on the tube 6 by brazing or otherwise fixing
a ring 63 thereon the said shoulder may be formed by rolling an annular rib b¹
(Figure 13) on the tube. When a strengthening liner d is employed as in
Figure 13 a corresponding annular rib may be simultaneously formed in the said
liner for securing the said liner in position.
Or the conical end of the tube may be of somewhat larger diameter than the
cylindrical part of the tube as in Figure 14, the flange of the ring or collar c in
this case bearing against the shoulder 65 at the part where the cylindrical part
of the tube passes into the larger conical end.
•
The action of the arrangements Figures 13 and 14 is the same as that of the
arrangement Figure 12.
Instead of preventing the rotation of the tube b in the lug a by milling or
serrating the parts as represented in Figures 1 to 9 both inclusive the tube b
may

page_text: have a longitudinal projection or rib 66 (Figure 15) or a longitudinal depression
or groove (Figure 16) with which a corresponding part in the lug may engage.
Although I have only described my invention in connection with the fixing of
the top horizontal tube of a safety bicycle_frame in the top lug of the same yet
I wish it to be understood that the application of my invention to other tubular
joints of velocipedes and like frames differs in no essential respect from its applica-
tion to the top lug joint of a safety bicycle frame as herein-before described and
illustrated.
Having now particularly described and ascertained the nature of my invention
and in what manner the same is to be performed I declare that I claim as my
invention of "Improvements in connecting together the parts of the frames of
Bicycles, Tricycles and other Velocipedes and other Vehicles": -
First A brazeless joint for cycle and like frames consisting essentially of
the following combination of parts namely, an externally screwed lug, a tube
taking into the lug, the part of which tube adjacent to the end of the lug being
externally screw threaded in a direction contrary to that of the lug, and an
internally screwed ring or collar for taking on the screw thread of the lug and
on the oppositely threaded screw of the tube and thereby drawing and securing
the two parts together substantially as herein before described and illustrated in
Figures 1 to 11 both inclusive of the accompanying drawings.
Secondly; The combination with a brazeless joint of the kind claimed in the
prior claim of an internal liner for the tube the end of which liner projects out
of the end or mouth of the tube and is expanded or belled on the end of the tube
substantially as herein before described and illustrated in Figures 10 and 10 of
the accom
ompanying drawings.
Thirdly; The modified brazeless joint illustrated in Figures 12, 13 and 14
consisting essentially of a lug screwed externally, a tube the end of which takes
in the lug, the said tube having a rib or shoulder, and an internally screwed collar
for taking on the screwed lug the screwed collar having an inwardly projecting
flange for bearing against the rib or shoulder of the tube which rib or shoulder
when the collar is screwed home on the lug draws the tube into the lug and thereby
connects the two parts together substantially as described and illustrated.
Dated the Twenty seventh day of April 1898.