Year: 1899

page_text: I, EDMUND HUGH HODGKINSON, of 8, Lancaster Gate, in the County of Middlesex,
Gentleman, do hereby declare the nature of this invention to be as follows:-
This invention relates to rim brakes of velocipedes motor-cars and carriages
and more especially to one form of the brakes described in my previous Specifica-
tion No. 16715 of the year 1897.
I pivot the brake to the frame of a bicycle, as before mentioned in the above
specification, by means of two L shaped side pieces, each carrying a brake pad,
connected to each other by a stirrup piece bridging over the tyre as described
and shown in Figures 1 and 10 of Specification No. 16715 of 1897, but I now
pivot one end of each of these side pieces to a hollow spindle which I place
above, or outside of, the tyre of the wheel.
This hollow spindle has suitable shoulders for the side pieces of the brake to
pivot upon easily, whilst it encloses preferably a screwed rod.
This screwed rod also passes through the clips on the stays of the machine
and by means of suitably arranged washers and lock nuts firmly holds both the
brake and the clips in position: whilst the brake is thus at the same time freely
pivotted on the hollow spindle.
By this arrangement owing to the brake being pivotted above the tyre, there
is a considerable tendency to draw itself on, and thus it necessitates only a very
slight application of power to the rod which works it: or similarly therefore to
the hand or foot lever which actuates it. It is thus a very powerful brake.
Furthermore the screwed rod or bolt, which passes through the hollow spindle
and through the clips upon the stays of the frame, enables the brake itself to be
easily affixed to a machine, as it forms a locking bolt both for the clips on the
stays and for holding the brake in position; and thus obviates a great difficulty
hitherto in the easy adjustment of a rim brake.
This screwed rod or bolt and its accompanying washers further afford a simple
adjustment for any width of stays.
I preferably make the hollow spindle with its shoulders for the side pieces
of the brake, narrow enough for the stays of any machine; and accordingly when
the stays are broader, I fill up the space with washers up to the clips on the stays
and lock the whole preferably by outside nuts.
I may employ a spring to take the brake out of action the spring may be
coiled on a loose barrel or drum fitting loosely on the hollow spindle and indeed
as far as the brake is concerned the barrel forms a part of the hollow spindle
as one side of the barrel has a shoulder to receive the side piece of the brake:
the side piece thus encircling both the barrel and the hollow spindle.
This form of brake is applicable to any wheel. In some cases one clip or lug
only, is used.
Dated thi 17th dow of November 10

page_text: I, EDMUND HUGH HODGKINSON, of 8, Lancaster Gate, in the County of Middlesex,
Gentleman, 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 relates to rim brakes of velocipedes motor-cars and carriages
and more especially to one form of the brakes described in my previous Specifica-
tion No. 16715 of the year 1897.
.
I pivot the brake to the frame of a bicycle, as before mentioned in the above
specification, by means of two L shaped side pieces, each carrying a brake pad,
connected to each other by a stirrup piece bridging over the tyre as described
and shown in Figures 1 and 10 of Specification No. 16715 of 1897, but I now
pivot one end of each of these side pieces to a hollow spindle which I place
above, or outside of, the tyre of the wheel.
This hollow spindle has suitable shoulders for the side pieces of the brake to
pivot upon easily, whilst it encloses preferably a screwed rod; or the side pieces
may have bosses at their ends in which case the shoulders may be dispensed
with.
This screwed rod also passes through the clips on the stays of the machine
and by means of suitably arranged washers and lock nuts firmly holds both the
brake and the clips in position: whilst the brake is thus at the same time freely
pivotted on the hollow spindle.
The clips are preferably provided with prolongations, the clips themselves are
secured to the stays by screw bolts whose axes are at right angles to the stays and
the screwed rod is secured by washers and lock nuts to the prolongations which
are bent inwards so that the screwed rod is parallel to the axle of the wheel.
By these arrangements owing to the brake being pivotted above the tyre, there
is a considerable tendency to draw itself on, and thus it necessitates only a very
slight application of power to the rod which works it; or similarly therefore to
the hand or foot lever which actuates it. It is thus a very powerful brake.
This screwed rod or bolt and its accompanying washers afford a simple adjust-
ment for any width of stays.
I preferably make the hollow spindle, with its shoulders for the side pieces
of the brake, narrow enough for the stays of any machine; and accordingly when
the stays are broader, I fill up the space with washers up to the clips on the stays
and lock the whole preferably by outside nuts.
I may employ a spring to take the brake out of action the spring may be
coiled on a loose barrel or drum fitting loosely on the hollow spindle: and indeed
as far as the brake is concerned the barrel forms a part of the hollow spindle
as one side of the barrel has a shoulder to receive the side piece of the brake;
the side piece thus encircling both the barrel and the hollow spindle.
This form of brake is applicable to any wheel. In some cases one clip or lug
only is used.
The drawings illustrate brake mechanism made in accordance with this inven-
tion. Figure 1 is an end view and Figure 2 is a side view. Figure 3 shows the
hollow spindle and Figure 4 the screwed rod.
The brake consists of two L shaped side pieces a carrying brake pads 6 con-
nected to each other by a stirrup piece e and pivotted on a hollow spindle d.
The hollow spindle is provided with shoulders e and encloses a screwed rod f.
gare clips secured to the stays h by screw bolts i, they are provided with

page_text: prolongations 1 through holes in which the screwed rod f passes. If desired
the prolongation k may be omitted. The prolongations are bent inwards so that
the axis of the bolts i may be at right angles to the stays and the rod f parallel
to the axle of the wheel. The rod f is secured in position by nuts m, washers n
being inserted if necessary between the end of the spindle d and the prolongation Z.
I provide a spring o to take the brake out of action.
As is shown in Figure 5 the L shaped side pieces a may be provided with long
bosses in which case the shoulders on the hollow spindle d are dispensed with
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. A rim brake pivotted to the back stays above the tyre substantially as
described.
2. A rim brake pivotted to a hollow spindle which encloses a screwed rod by
means of which it is secured to the back stays above the tyre substantially as
described.
3. A clip secured to the stay by a bolt at right angles to the stay with a pro-
longation or prolongations bent into a plane or planes at right angles to the axle
of the wheel.
4. Brake mechanism substantially as described and illustrated in the drawings.
Dated this 13th day of July 1900.