An Improved Break and Body-shifting Apparatus for use with Two-wheeled Road Vehicles.
Year: 1890

page_text: Date of Application, 20th Sept., 1890-Accepted, 25th Oct., 1890
COMPLETE SPECIFICATION.
An Improved Break and Body-shifting Apparatus for use with
Two-wheeled Road Vehicles.
I, JAMES NELSON, of New Inn Yard, Kendal, in the County of Westmoreland,
Coach Builder, 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 for its object to provide a two-wheeled road vehicle with break
apparatus of a double-acting kind (that is to say so that each wheel may have a rear
and also a front break block) and in combination therewith an arrangement of
apparatus whereby by the application of the break power to the wheels the body of the
vehicle may be caused to shift or move rearwards relatively to the axle and thus to
take off the load from the horse's back which as is well known is desirable when
travelling down hill.
In order that my invention may be more clearly understood I annex a sheet of
drawings of which
Fig. 1 is a side view of a two-wheeled road vehicle having my improved apparatus
applied thereto, the body of the vehicle being shewn in the position which obtains
when the break is off; and
Fig. 2 is a similar view shewing the altered position of the parts constituting the
improved apparatus and the body of the vehicle moved back when the break is on.
Fig. 3 is a back view of the same vehicle; and
Fig. 4 is a plan view the upper part of which shews the arrangement of the break
and body-shifting apparatus as seen with one half of the vehicle body omitted.
I place in front of each of the two wheels a fixed break block a carried upon the
outer extremity of a scroll iron whose other is fastened to the vehicle body A. To
the scroll iron is jointed the lower end of a swing lever or arm c whose upper end is
jointed to and supports the front end of the carriage spring d. The rear end of the
spring d is jointed to the lower part of a swing lever e whose upper end is jointed to a
bracket or bent plate f fastened to the side of the vehicle body A. The lower part of
the spring lever e is continued or in one piece with a bent arm g to which is fastened
at its outer extremity the rear break block h. At a suitable distance above the joint on
the rear end of the spring d the swing lever e is jointed to one end of a connecting rod i
whose other end is jointed to the upper end of an arın or lever j fastened at its lower
end upon a cross shaft k midway of which is fastened the lower end of a hand lever Z
which may be provided with a notched quadrant and attendant mechanism of the
usual kind as indicated in broken lines at Figs. 1 and 2. The cross shaft is carried in
bearings m m secured to the underside of the vehicle body A.
The action of the apparatus as above described will be apparent on reference to
Figs. 1 and 2 of the drawings in which (as shewn): when the hand lover is in its
rearmost position (see Fig. 1) the break blocks a and h are clear of the wheel and the
vehicle body is in its normal position (that is to say centrally balanced as regards the
axle n). When the said hand lever has been moved forward (see Fig. 2) the break
blocks a and h are compressed against the wheel the body of the vehicle having been
simultaneously shifted or moved rearwards.
I am aware that it is not new to employ a hand lever such as in conjunction with
apparatus for simultaneously applying break power to the wheels and shifting or
moving rearwards the body of a two-wheeled road vehicle. But so far as is known to
me the apparatus heretofore employed for this purpose has been caused to apply to
each of the two wheels only one break block and that placed at the rear or back part
of the wheel; whereas by my invention two break blocks are applied to each of the
wheels or four break blocks in all. Thus by the use of my invention the amount of
contact pressure of the break blocks on each wheel is greatly reduced the said pressure
D

page_text: being distributed between four blocks instead of between only two blocks as heretofore.
By employing four blocks instead of two not only a decreased pressure and a much
easier action on the wheels results but the one-sided thrust on the axle bearings which
obtains when the break pressure is applied on one side only of the wheels is obviated.
Moreover a further improvement in the apparatus I employ as above described
consists in the employment of the swing levers c and e which afford an easy and
durable arrangement.
Having now particularly described and ascertained the nature of the said inven-
tion and the manner in which the same is to be performed I declare that what I
claim is :-
In conjunction with the wheels of two-wheeled road vehicles the use or employment
of a fixed break block in front of each wheel in combination with a break block behind
each wheel and apparatus for causing the body of the vehicle to be shifted or moved
rearwards simultaneously with the closing in of the front and rear break blocks
constructed arranged and operating substantially as described and shewn in the
drawings.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.