IMPROVEMENTS IN BREAK APPARATUS FOR VEHICLES AND OTHER PURPOSES
Year: 1885

page_text: Purposes.
I, STEPHEN LESLIE NORRIS of No 4. Grand Parade, Portsmouth in the County
of Hampshire, Lieutenant Royal Engineers do hereby declare the nature of my
invention for "IMPROVEMENTS IN BREAK APPARATUS FOR VEHICLES AND OTHER
PURPOSES" to be as follows:-
My invention relates to break apparatus, by means of which the breaks are
applied at both ends of a reciprocating motion, while at the intermediate part of
such motion the breaks are free, such apparatus being more particularly applicable
to tram or railway cars having starting gear applied thereto, such as is described in
my application bearing equal date herewith. The invention consists in connecting
to the break strap or lever the one end of a band, cord or chain having its other
end fixed while at an intermediate point of its length it passes between two rollers
or studs upon a rod or bar to which motion can be imparted in either direction at
or about right angles to the direction of the band, so that when the rod or bar is
moved in one direction it presses the band outwards at the point where it is held
between the rollers, and in thus straining it into an angular position it causes the
band to exert a pull upon the break strap or lever, sufficient to apply the breaks.
On then moving the rod in the contrary direction, it firstly allows the band to
slacken again, so as to take off the breaks, after which it strains the band in the
opposite direction, so as to apply the breaks again. I prefer to make the said
band form the continuation of a band-break passing round a break wheel, and to
arrange both ends of the break strap in the above described manner, that is to say,
the reciprocating rod is provided with two sets of rollers or pins, between each
set of which the band passes, so that on moving the rod both ends of the band
are strained into an angular position, whereby greatly increased breaking power is
obtained.
With this arrangement the reciprocating bar might have only a single roller or
stud on one side of each part of the band so that on moving the rod in one
direction it acts upon the one part of the band so as to apply the breaks and on
moving it in the contrary direction it would act on the other part. This
arrangement would however apply the breaks with much less power and also
require a considerable amount of slack to be taken up in the band at each motion.
CT 1005
ABEL & IMRAY,
Agents for the Applicant.

page_text: Purposes.
I, STEPHEN LESLIE NORRIS of N° 4 Grand Parade, Portsmouth in the County
of Hampshire, Lieutenant Royal Engineers 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:-
. My invention relates to break apparatus, by means of which the breaks are
applied at both ends of a reciprocating motion, while at the intermediate part of.
such motion the breaks are free, such apparatus being more particularly applicable
to tram or railway cars having starting gear applied thereto, such as is described in
my application bearing equal date herewith and numbered 6632 of 1885. The
invention consists in connecting to the break strap or lever the one end of a band,
cord or chain having its other end fixed while at an intermediate point of its
length it passes between two rollers or studs upon a rod or bar to which motion
can be imparted in either direction at or about right angles to the direction of the
band, so that when the rod or bar is moved in one direction it presses the band
outwards at the point where it is held between the rollers, and in thus straining it
into an angular position it causes the band to exert a pull upon the break strap or
lever, sufficient to apply the breaks. On then moving the rod in the contrary
direction, it firstly allows the hand to slacken again, so as to take off the breaks,
after which it strains the band in the opposite direction, so as to apply the breaks
again. I prefer to make the said band form the continuation of a band-break
passing round a break wheel, and to arrange both ends of the break-strap in the
above described manner, that is to say, the reciprocating rod is provided with two
sets of rollers or pins between each set of which the band passes, so that on
moving the rod both ends of the band are strained into an angular position,
whereby greatly increased breaking power is obtained.
With this arrangement the reciprocating bar might have only a single roller or
stud on one side of each part of the band so that on moving the rod in one
direction it acts upon one part of the band so as to apply the breaks and on
moving it in the contrary direction it would act on the other part.
The accompanying drawing shews by way of example an arrangement in which
a band brake is directly acted upon by the bar and rollers as above described.
A is the brake wheel or drum fixed on the shaft or axle B and partly surrounded
by the band brake C, whose two ends are attached to fixed points D D. E is a
bar, capable of being moved in a longitudinal direction by hand or other power
and carrying two rollers F F¹, situated one on each side of the band C. Thus if
the bar E be moved in the direction of the arrow, it will deflect the band C and in
thus tightening the same round A, will produce the required brake action; on
moving the bar in the contrary direction the roller F will first release the brake
band, and on the further motion of the bar the roller F will deflect the other side
of the band and cause the brake to be again applied. The motion of the bar E in
either direction before applying the break may be made of any desired extent by

page_text: increasing the distance between the rollers F F¹ by an amount equal to the desired
increase of travel of the bar E. Instead of making the brake band bear directly
upon the wheel or drum, it may be lined with segmental blocks of any suitable
material.
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:-
First. The use of brake apparatus wherein a band cord or chain connected to or
forming part of a brake strap or lever is actuated in such a manner by two or
more rollers or studs on a bar having reciprocating motion, that on the bar
travelling in one direction, the one roller or set of rollers is caused to deflect the
band, cord or chain laterally whereby, it is made to apply the brake, while when
the bar travels in the contrary direction, the brake is first released by the motion
of the said roller, and is then again applied by the deflection of the band cord or
by means of the other roller or set of rollers substantially as herein described.
Second. The use of brake apparatus wherein a band brake passing round a
brake wheel or drum has its ends attached to fixed points while a reciprocating
bar having two or more rollers or studs is so arranged relatively to the band brake
that when travelling in one direction the one roller or stud will deflect the band at
a point between the fixed one end and the break wheel, so as to apply the break
strap to the latter while when the bar travels in the contrary direction the
said roller or stud will first release the break band and then the other roller or
stud will deflect the band so as to again apply the break, substantially as herein
described.