Cross Pieces on Velocipedes.
Year: 1885

page_text: Cross Pieces on Velocipedes.
We, ISAAC WATTS BOOTHROYD, of Circus Street, Greenwich, in the County of
Kent, Manager, PHILIPP LOUIS CHARLES FREDERICK RENOUF, of 46 Roland
Gardens, in the County of Middlesex, Student of the Inner Temple, and THOMAS
BROCKAS, of Belmont Road, Lewisham, in the County of Kent, Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to improvements in fitting handle bars &c. to velocipedes,
whereby the same can be readily detached and replaced. As applicable to handle
bars:.
We slot out the front of the head horizontally, the slot being of such width as to
allow of the insertion of the handle bar. After the latter has been placed in
position a long cottar is driven in underneath and held in its place by a nut. Or
we may fix to the handle bar, preferably on the lower side, a pair of perforated
projecting lugs. The head has a long horizontal hole by which a bolt or cottar
can be inserted through the lugs on the handle bar.
Or, the central part of the handle bar carries a projecting piece of metal of
circular or corrugated shape and slightly tapering, and which fits a corresponding
slot in the head; the long projection is driven into position and secured there by a
screw or other means. Or under the slotted head lug we may arrange a pin or
stud on which we pivot an arm or a pair of oppositely inclined arms connected by
a swivelling nut or other means to grip the handle bar.
Or, we may slot out the head to receive the middle part of the handle bar and
the ends of the slot are widened or recessed or else are provided with a projecting
half open V ring. The handle bar carries an annular projection on one side to
fit into these recesses or over one of the circular V rings. On the other side the
handle bar carries a similar projection which on being screwed up fills the second
recess or covers the second V ring on the head, thus securing the handle bar.
Or, we may in some cases make: the handle bar in two halves lapped at their
ends to fit and having fitted the same in the hollow head lug or slot draw them
together and tighten them by means of a taper cottar passing through the lug and
lapping ends. Instead of the lapped ends we may tap the ends of the divided
handle bar with right and left hand threads and fit a nut in the hollow lug on the
head to secure the same by drawing the threads together.

page_text: 5
Improvements in Fitting Handle or other Bars or Studs to
Cross Pieces on Velocipedes.
•
We, ISAAC WATTS BOOTHROYD of Circus St Greenwich in the county of Kent,
Manager, PHILIP LOUIS CHARLES FREDERIC RENOUF of 46 Roland Gardens in the
county of Middlesex, Student of the Inner Temple and THOMAS BROCKAS of
Belmont Road Lewishamn in the county of Kent, Engineer do hereby declare the
nature of our invention for IMPROVEMENTS IN FITTING HANDLE OR OTHER BARS
OR STUDS TO CROSS PIECES ON VELOCIPEDES and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
We prefer to fix handle or cross bars on velocipedes in such a manner that they
can be removed without much difficulty when it is desirable to detach them.. We
sometimes make the whole handle-bar in one piece, and sometimes in two pieces,
the former method requiring the front lug on the head to be open to recieve
the bar.
Referring to the accompanying drawings, Fig. 1 shews a handlebar A laid into
the open lug of the head B and held in position by the taper cottar C, which is
driven between the handle bar and one part of the lug.
Fig. 2 shews the head B provided with a slot which may vary in shape but is
narrower at one end than at the other one. The bar A is furnished with a
projecting piece corresponding in shape and size to this slot; the narrower end of
this slot carries a projecting screw and nut.
When the handle bar is placed in position it will be readily seen that this nut,
which impinges against part of the head, will firmly draw up the bar and hold it
in its place.
In Fig. 3 the handle bar is provided with an annular piece of crescent section, m,
firmly fixed to the same, and a nut n of similar shape and section travelling on a
threaded part of the bar; when the bar is placed in position this nut is screwed up
so that the fixed ring and the nut itself are drawn over the ends of the lug on
the head.
In Figs. 4 and 5 the lug is not open in front, but is pierced in the usual way, and
then slightly coned or belled out at each end.
The handle bar consists of two pieces, the ends which are to be inserted into the
head lug being conical in shape. In Fig. 4 these ends are cut horizontally so that
they may overlap; these lapping ends have holes cut through vertically which
partly overlap, in such a way that when the two half bars are placed in position
and a conical or wedge shaped cottar C driven through the vertical hole c provided
in the lug B, this cottar causes the two ands to be drawn towards one another, the
handlebars being thus securely locked to the head.
Fig. 5 shews the head lug cut through vertically to recieve the nut D; through
this nut D passes the screw C, provided with a right handed and a left handed
thread, and a key way in the middle; the nut D whilst capable of horizontal
motion along this key way will when moved round it's centre carry the screw
г

page_text: piece C. The conical ends of the handle bars A, A¹ are tapped for right and left
handed threads corresponding to those on the screw piece C. By placing the screw
inside the lug B with the nut D over it, then inserting the bar ends A and A¹ and
slightly pressing them together, the nut D when turned will cause A, A¹ to be
firmly drawn into and locked to the head lug. We prefer to cut small grooves
along A, A¹, and fix small guide studs C, O on the lug, to insure the bars being
drawn in without turning round; the side travel of which D is capable, whilst
carrying the screw by means of a screw passing through D into the key way on C
allows the handlebars to be easily attached without necessitating too difficult an
adjustment so as to make the screw grip both bars at the same instant, and also
avoids a danger, which might otherwise arise of one side being locked whilst the
other side could be held only loosely. When the handle-bar is fixed and the nut
turned back, both ends of the handle bar will come out simultaneously.
A similar arrangement can be made, by having one end of the handlebar made
with a right handed thread and the other one with a left handed one on the
outside, instead of the inside, and the drawing in action produced by replacing the
male screw O with a nut with internal right and left handed threads; but we have
found the previously described method more advantageous.
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 :
1. A handlebar pressed into an open lug and held there by a tapering key or
cottar driven between the bar and one part of the lug, the key or cottar being
parallel with the handlebar, as described in this specification.
2. A handlebar provided with a horizontal tapering projection fitting into a
corresponding tapering slot on the head lug, and firmly drawn into the same lug.
3. A handle bar provided with two recessed annular attachments fitting over
an open lug, one of these giving the necessary locking motion by being screwed
along the handlebar.
4. A handlebar consisting of two pieces joined by having overlapping ends
which are drawn together so as to form one rigid piece with the head.
5. A handlebar consisting of two pieces the ends which meet in the head being
conical, and the two pieces being drawn together by a wedge, or by a screw, or by
a nut, or by a pair of screws.
6. The handlebar illustrated in fig. 5 of the drawings accompanying this specifi-
cation substantially as described.