Year: 1899

page_text: I, JOHN MACEY, of 35, Penton Street, Clerkenwell, London, W.C., Cycle
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention has reference to improvements in brakes for use upon cycles
and the like. The object being to produce a brake which can be applied by
means of tension or direct pull on to the rim of the wheel in a position where it
can follow up any alteration in the form of the wheel, while being free from the
possibility of contact with the spokes of the wheel.
In carrying my invention into effect when constructing a brake for use upon a
bicycle, I mount a pair of clip levers upon a stud or pin which I secure to a
bracket attached in any convenient manner to the fork head of the machine.
The clip levers I provide with extension arms on to which I secure links forming
a toggle like connection capable of being extended or compressed so as to open
or close the free or clipping end of the clip or brake levers.
Upon the jointed ends of the links attached to the fork arms I connect a rod
or cord direct to the brake lever carried in any convenient or usual manner upon
the machine so that when the cord or lever is pulled the links are drawn upwards
and the free ends of the clipping levers are drawn inwards, so as to press against
the rim of the wheel preferably at the beaded or strongest portion of the rim
periphery. On the ends of the clipping levers I secure brake blocks of india-
rubber, leather, brush, fibre, or other suitable material the blocks being shaped
preferably to suit the curve of the wheel.
To keep the levers open and free from pressing upon the rim I prefer to place
a spring or springs between the toggle links so as to keep them in their lower
position, the pull of the brake rods or brake. cord or wire being made to act
against the spring.
To prevent undue strain being given to the free ends of the brake clipping
levers I connect the links from the arms to a fixed member of the machine so
that when the pull or drag is being given on to the brake blocks the links or
connections prevent the arms from being strained.
I find it convenient to
connect my stay bars or links from the free ends of the clips to the foot rest
or to a bracket carried upon the machine near to the position of the foot rest.
I do not limit the application of my invention to any particular form of brake
shoe or to any special arrangement of the toggle links, but I may vary the links,
method of connection, actuation and formation of the jaws to suit the shape of
rim and type of machine to which my improved clipping brake is to be attached.
Dated this 5th day of Ammet 1890
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.

page_text: Сустаци ще ПАС.
I, JOHN MACEY, of 35, Penton Street, Clerkenwell, London, W.C., Cycle
Engineer, 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 reference to improvements in brakes for use upon cycles
and the like. The object being to produce a brake which can be applied by
means of tension or direct pull on to the rim of the wheel in a position where it
can follow up any alteration in the form of the wheel, while being free from the
possibility of contact with the spokes of the wheel.
In the accompanying sheet of explanatory drawings.
Figure 1 is a front elevation of my brake attached in one convenient manner
to the fork head of a cycle.
Figure 2 is a sectional elevation of the same on the line A, B.
Figure 3 is a detail view of my bracket for carrying the brake levers.
In carrying my invention into effect when constructing a brake for use upon
a bicycle, I mount a pair of clip levers A,B, upon a stud or pin C which I secure
to a bracket D attached by means of bolts P and a cross-plate R or in any
other convenient manner to the fork head of the machine. The clip levers A, B,
I provide with extension arms a, b, onto which I secure links E, F, forming a
toggle like connection capable of being extended or compressed so as to open
or close the free or clipping end of the clip or brake levers.
are
Upon the jointed ends of the links attached to the fork arms I connect a rod
or cord G direct to the brake lever carried in any convenient or usual manner
upon the machine so that when the cord or lever is pulled the links E, F,
drawn upwards and the free ends of the clipping levers A, B, are drawn inwards,
so as to press against the rim of the wheel preferably at the beaded or strongest
portion of the rim periphery. On the ends of the clipping levers I secure brake
blocks H, K, of india-rubber, leather, brush, fibre or other suitable material the
blocks being shaped when so required to suit the curve of the wheel.
To keep the levers open and free from pressing upon the rim I prefer to place
a spring or springs between the toggle links or over the crossing arms at the
joint pin as at L so as to keep them in their lower position, the pull of the
brake rod or brake cord or wire being made to act against the spring.
To prevent undue strain being given to the free ends of the brake clipping
levers I connect the links from the arms A, B, by means of tension rods to
a fixed member of the machine or to a clip bracket N attached thereto so that
when the pull or drag is being given to the brake blocks the links or connec-
tions prevent the arms from being strained. I sometimes find it convenient to
connect my stay bars or tension rods from the free ends of the clips to the foot
rest or to a bracket carried upon the machine near to the position of the foot
rest.
To enable the fulcrum pin C to be adjusted and to equalise the clipping
action on the rim I prefer to form my bracket 1 with a slot O therein in which.
the pin can be raised or lowered. I prevent the pin C from turning in the slot
by forming flattened sides so that it may fit in the slot.
I do not limit the application of my invention to any particular form of brake
shoe or to any special arrangement of toggle links, but I may vary the links,
method of connection, actuation and formation of the jaws to suit the shape of
rim and type of machine to which my improved clipping brake is to be attached.
4

page_text: 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 improved clipping brake for use upon the rim of a cycle wheel or the
like consisting of a pair of cross arm levers and operating links which are carried
upon a pivot or pin secured to a bracket attached to the machine, substantially
as and for the purpose hereinbefore described and as illustrated in the accom-
panying drawings.
2. In a rim brake for use upon cycle wheels and the like the combination of
a pair of link jointed toggle like levers the free ends of which carry brake blocks
thereon, with a bracket capable of being attached to the fork head of the machine
for carrying the pivot or pin upon which the cross levers turn when the brake
rod is operated, substantially as herein before described and as illustrated in the
accompanying drawings.
VAIS
Both day of December
του.
MARKS & CLERK,
18, Southampton Buildings, London, W.C.,
13, Temple Street, Birmingham, and 25, Cross Street, Manchester, Agents.