AN IMPROVED BAND-BRAKE
Year: 1884

page_text: I JOSIAH JACKSON of 59 Lower Ford Street, Coventry, in the County of
Warwick, Machinist, do hereby declare the nature of the said invention for
"AN IMPROVED BAND-BRAKE" to be as follows:-
The salient feature of this invention consists in making and fitting a band-brake
so that it will clip the whole circumference of the brake-drum when the brake is
applied.
The band is attached at one end by eyes formed on same and cross-pin to the
bottom of a lever suitably pivotted to an arm or bracket, and near the other end to
a suitably arranged stud or arm. The latter end of the band instead of being
formed and fastened in the usual way is made to form for a certain distance back
from the extremity an incline or wedge on the outside beginning as thin as
possible: the underneath of the incline is made curved to correspond with the
periphery of the drum.
The incline or wedge part is arranged for the bottom of the lever to act upon to
press it down on the periphery of the drum when the brake is put on by the
depression or pulling down of the lever, the thin end comes sufficiently far under
the end of band attached to lever to be caught between the band and periphery of
drum on the tightening of the band round the drum, thereby enabling the band to
bite all round.
The wedge end of the band is suitably fastened to the stud or arm to enable the
end of lever to act upon it in the manner described.
The end of lever is suitably formed for this purpose and may be fitted with a
roller to assist its action.
The wedge or incline part may either be formed on the band or made separate
and attached in any suitable manner.
To prevent the brake acting when not required and to always keep it open and
free of the drum, and the lever in a suitable position for use, any known spring
appliance may be arranged to act on the lever.
Dated this 31st day of December 1884.
FREDERIC PRINCE,
1, Quality Court, W.C.,
Agent for the Applicant,

page_text: I JOSIAH JACKSON of 59 Lower Ford Street,. Coventry in the County of
Warwick, Machinist, do hereby declare the nature of this said invention and in
what manner the same. is to be performed to be particularly described and
ascertained in and by the following statement :-
The salient feature of this invention consists in making and fitting a band-brake
so that it will clip the whole circumference of the brake drum when the brake is
applied; such arrangement of brake being particularly suitable for velocipedes, but
it is also applicable to other machinery where band brakes are used,
The invention and action of same will be more clearly understood by reference
to the drawing.
a represents the brake drum on axle b, c the band, having suitable eye
arrangement e, rivetted on one end, and fastened to end of a lever d by a cross
pin e', the lever being pivotted at k to a bracket f, attached to frame; the extremity
of other end of band is brought to a knife edge which extends under other end of
band. Near the knife edge end is rivetted, or otherwise suitably attached, a wedge
like piece of metal g, which on the band being tightened, cause it-the band-to
bite all round the angle of outside of wedge g being made suitable for the band to
act upon, and underside of wedge to correspond to periphery of drum. The drawing
represents the wedge end of band secured to lever by a connecting rod or arm h
attached to band by eye at one end, and cross pin i passing through a rivetted-on
standard eye j, and to lever by suitable eye j' through which and lever & passes the
bracket pivot k: the head carrying eye j' I prefer to make separate from arm h and
attach it to same by screwing for the purpose of adjustment. On pulling up the
handle of lever & the band is tightened all round by the aid of wedge g. In this
arrangement the connecting arm h would fixedly hold the knife edge end of band
and wedge while the other end was being drawn over it by the depressing of the
end of the lever d moving on pivot k, on the handle. being pulled up.
Another arrangement would be to pivot the lever at e instead of at k; in this
case the connecting arm h, would press the wedge end of band under the other end
on the lever d being pulled up.
The plan which I prefer to use to keep the brake on when required is a sector
shaped ratchet m, and pawl and lever n, pivotted to lever dat o. The pawl n is
beld against ratchet by suitable spring p which may be attached to lever in any
known manner.
To release the brake it is only necessary to pull up pawl lever n to handle of d,
which withdraws the pawl from ratchet.
It will be readily understood that any known spring appliance can be used
if necessary to keep the band free of the drum when the brake is off.

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 I make
no claim to the pawl lever and pawl n, and ratchet m, but what I consider novel
and claim is
The improved arrangement of band-brake to enable the band to bite all round
the brake drum particularly as regards the use of wedge g, whether the lever dis
pivotted at e or k substantially as hereinbefore described and represented in the
accompanying drawing.