Improvements in Brakes for Vehicles, Motor Cars, and the like.
Year: 1899

page_text: Date of Application, 11th May, 1899-Accepted, 24th June, 1899
COMPLETE SPECIFICATION.
Improvements in Brakes for Vehicles, Motor Cars, and the like.
I, REGINALD HADDAN, of the Firm of Herbert Haddan & Co., of 18, Bucking-
ham Street, Strand, W.C., Patent Agent, do hereby declare the nature of this
invention a communication to me from abroad by Ernst Lehut, of 9bis, Rue
Albouy, Paris, in the Republic of France, Manufacturer, 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 an improved brake for vehicles, motor cars and the
like allowing a gradual or instantaneous braking of the wheels in either forward
and backward movement.
The annexed drawing illustrates the invention in which Fig. I is a longitudinal
section and Fig. II is transversal section of the improved brake.
1 is the axle tree on which the wheel 2 turns; 3 is a bracket made in one with
the axle tree or fixedly secured to it in any suitable manner. The bracket is
provided with two arms 4 and 5 for receiving the loops 6 and 7 of the collars 8
and 9; 10 is a metal drum fastened on the nave of the wheel 2, and surrounded
outside by the collar 8 and inside by the collar 9. The collar 8 is made of a large
band 81 and a smaller one 82, the first covering the second one. They are of
metal and covered with leather bands a on the side towards the drum or hoop 10.
The band 81 and 82 are joined together by a hook 83 arrange on the extremity of
the band 82 and engaging into an opening arranged on the corresponding ex-
tremity of the band 8.
The free extremity of the band 82 is joined by a fork 11 with the arm 13 of a
bent axle 12 on whose opposite end a lever 14 is keyed at right angles joined
by a chain or link 21 with the cross piece 15.
The collar 9 is formed by a large band 91 and a smaller one 92, the first cover-
ing the second. They are of metal covered with leather bands 6 on the side of
the hoop 10. The bands 91 and 92 are joined together by a fork 16, arranged on
the extremity of the band 9' wherein the extremity of the band 92 penetrates.
The free extremity of the band 92 is joined to a thong 17 whose other extremity
is fixed on the periphery of a pulley 18 fastened on the end of a shaft 19 on
the other end of which another pulley 20 is arranged on the periphery of which
the end of a chain 22 is fastened which is wound up in the contrary direction
of the thong 17 and whose other end is fastened on the cross piece 15. The
leather bands are for the purpose of augmenting the adherence of the collars on
the hoop; 23 is a chain which is connected with a pedal arranged near the driver
of the vehicle.
The following is the manner of working:-When the driver wishes to work
the brake he actuates the pedal which by means of the chain 23 moves the cross
piece 15 and the chains 21 and 22 follow it. The chain 21 moves the lever 14
and by means of the shaft 12 draws the arm 13 with it and consequently the
fork 11 draws upon the band 8¹ of the collar 8 which tightly embraces the hoop 10
and draws the band 82 with it, which also embraces the hoop 10 whose rotation and

page_text: consequently that of the wheel is stopped. At the same time the chain 22 in-
Hluenced by the cross piece 15 moves the pulley 20 and also the pulley 18 by the
shaft 19 which drawn by the thong 17 on the extremity of the band 93 of collar 9
draws this band and band 91 against the hoop 10 which it prevents from turning
in the contrary direction that is backwards. The wheel can consequently neither
turn forward or backward.
It is clear that this, an example of construction can be modified also instead
of using only one pedal, two could be used actuating the collars separately. In
this case the cross piece 15 is suppressed.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
An improved brake for vehicles, motor cars and the like formed by the com-
bination of drum 10 fixed to the wheel with two extensible collars 8 and 9 arranged
one outside and one inside the drum and acting frictionally on the same when a
traction is exercised upon the said collars the one inside, the other outside the.
action of the said collars being so combined that the drum can turn neither in
the one direction or the other."
The whole being substantially as herein described and illustrated in the annexed
drawings.
Dated this 11th day of May 1899.