Improvements in Attaching and Securing Elastic Tyres upon the Wheels of Certain Vehicles and in the Metal Tyres for such Purposes.
Year: 1889

page_text: Date of Application, 25th Nov., 1889
Complete Specification Left, 15th July, 1890-Accepted, 23rd Aug., 1890
PROVISIONAL SPECIFICATION.
Improvements in Attaching and Securing Elastic Tyres upon the
Wheels of Certain Vehicles and in the Metal Tyres for such
Purposes.
I WILLIAM BEALE of 33 Totteridge Road Battersea in the County of Surrey
Manufacturer do hereby declare the nature of this invention to be as follows:-
i
This invention relates to improvements in the means of attaching and securing
elastic tyres upon wheels for vehicles (such as Hansom cabs and carriages bicycles
and the like road vehicles) and to improvements in the metal tyres for this purpose.
According to my present Invention I arrange and construct the metal tyre as
follows:-
The metal tyre is formed somewhat trough sha ped the sides thereof being curved
or at an acute angle to the bottom of the trough so as to form an undercut channel
or dovetail section at each side-while in the centre or thereabouts a curved or
raised surface is provided such ridge or surface sloping toward each side of the metal
trough.
The elastic tyre has on its underside or "sole " a recess or groove formed to corre-
spond with the aforesaid metal ridge and with extending edges to take into the
undercut channels into which it is "sprung as is well understood.
دو
The effect on the elastic tyre of this ridge on the metal tyre is that in use the
weight on the elastic tyre presses same onto the ridge and so gives a tendency to
press out or expand sideways the sole of the elastic tyre sideways into the undercut
recesses or grooves and thus securely hold the elastic tyre at the point where it is on
the ground giving increased security against coming off and also gives great elasticity
to the tyre without putting extra labour upon the horse.
For facility of manufacture the metal tyre may be arranged and constructed as
follows:-
The bottom and each side is formed separately and the two sides secured together
by short flat metal plates rivetted to same at suitable distances apart (say about
18 inches) through which the fastenings for securing the metal tyre to the felloe are
passed the curved ridge being formed by shaped strips (advantageously of steel)
which are secured in the spaces between the foregoing plates to the side pieces of
the metal tyre loosely on studs or headed pins in slots in the curved piece or vice
versa so as to allow a certain amount of spring or play in the curved piece or it may
be rigidly fixed to the side pieces or secured in any other suitable or convenient
manner.
The aforesaid metal tyre may also be arranged and constructed in any other
equivalent or convenient manner as a whole or in any number of parts and of any.
suitable material or materials.
Dated this 25th day of November 1889.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, Agents for the Applicant...

page_text: COMPLETE SPECIFICATION.
Improvements in Attaching and Securing Elastic Tyres upon the
Wheels of Certain Vehicles and in the Metal Tyres for such
Purposes.
I WILLIAM BRALE of 33 Totteridge Road Battersea in the County of Surrey
Manufacturer 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 relates to improvements in the means of attaching and securing
elastic tyres upon wheels for vehicles (such as Hansom cabs and carriages bicycles
and the like road vehicles) and to improvements in the metal tyres for this purpose.
According to my present invention I arrange and construct the metal tyre as
follows:-
The metal tyre is formed somewhat trough shaped the sides thereof being curved
or at an acute angle to the bottom of the trough so as to form an undercut channel
or dovetail section at cach side as is well understood while in the centre or there-
abouts a curved or raised surface is provided such ridge or surface sloping toward
each side of the metal trough.
The elastic tyre has on its underside or "sole a recess or groove formed to corre-
spond with the aforesaid metal ridge and with extending edges to take into the
undercut channels into which it is "sprung" as is well understood.
The effect on the elastic tyre of this ridge on the metal tyre is that in use the
weight on the elastic tyre presses same on to the ridge and so gives a tendency
to press out or expand sideways the "sole" of the elastic tyre sideways into the
undercut recesses and thus securely hold the elastic tyre at the point where it is on
the ground giving increased security against coming off and also gives great elasticity
to the tyre without putting extra labour upon the horse.
For facility of manufacture the metal tyre may be arranged and constructed as
follows:-
The bottom or centre part and each side is formed separately and the two sides
secured together by short bolts or screws or rivetted at suitable distances apart and
through the centre part fastenings for securing the metal tyre to the felloe are passed.
The aforesaid curved ridge is formed (advantageously of steel) and secured in
position in the bottom of the said metal tyre loosely (either on studs or headed pins in
slots in the curved piece or vice versa or in any other convenient manner) so as to
allow a certain amount of spring or play in the curved piece or it may be fixed or
secured in any other suitable or convenient manner.
The aforesaid me al tyre may also be arranged and constructed in any other
equivalent or convenient manner as a whole with the "spring" or curved ridge
mounted thereon or in any number of parts and of any suitable material or
materials.
And in order that my present invention may be easily understood and readily
carried into practice I will proceed to further describe same with reference to the
.drawings hereunto annexed.
Figures 1 to 8 all show cross sections of tyres arranged and constructed in
accordance with my present improvements.
Figure 1 showing the metal tyre a all in one piece the raised portion or curve
being produced by a curved spring piece laid in the bottom of said metall trough
shaped tyre a and secured and retained in position by headed pins c which pass
through slots or openings (not shown) in the spring b of sufficient size to allow the
latter a small amount of play.
The cross pin a shown embedded in the elastic tyre d forms the subject matter of
another invention for which I am now applying for Letters Patent and is no part of
my present invention.
Figure 2 shows another form of metal tyre a the spring b being held in 'position

page_text: as before by screws c and the underside of the elastic tyre curved to correspond
with b as in Figure 1 and having cross pin embedded as before.
Figure 3 shows a slightly different form of metal tyre to Figure 1-the spring b
instead of being fastened to the metal tyre a being left quite free-the cross pins
also being dispensed with.
Figure 4 shows the metal tyre built up of three parts viz. a central band a' to
which the two sides a² and a³ are firmly bolted transversely by bolts a*.
The spring b is shown loose and also the cross pin r is shown.
Figure 5 shows the metal tyre a made with a curved form on its inside bottom
face 6x instead of having the spring or curved piece b-thus making a and b all
in one part and doing away with the curved piece b (see all the other Figures) as
a separate part.
Figure 6 shows another arrangement-the spring piece being held and retained
in its position by being sunk down in a groove or channel formed for that purpose
in the metal tyre a.
Figures 7 and 8 show yet another method of holding the spring b in position.
In Figure 7 the spring b is held and retained in its position by lugs or projections a
formed on the inner sides of the sides of the metal tyre a and in Figure 8 the
spring is held in the recesses or channels a formed on the insides of the sides of
the metal tyre a-as shown-in each case sufficient room being allowed for the
edges of the spring to expand or move outwards when required by pressure coming
on the said spring b.
The curved ridge b (or *) at the bottom of the inside of the metal tyre a upon
which the sole of the elastic tyre rests and which latter is made of corresponding form
will thus receive the pressure or weight put upon the elastic tyre and tend to spread
sideways the lower part of the elastic tyre thus giving great holding power to the
dovetail shape and also giving increased elasticity to the elastic tyre itself.
The cross pins may or may not be used in each case as desired.
I would remark that I do not now wish to make any claim separately to a metal
tyre built up of several sections of metal as I am advised that same is not new and
therefore I do not claim such.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
laim is :-
1. The combination of a metal tyre for holding an elastic tyre upon the wheels
of certain road vehicles-with a raised curved spring piece such as 6 upon its inside
bottom face which part 6 lies between the elastic tyre d and the said bottom of the
metal tyre a substantially as and for the purposes herein before described and illustrated
in Figures 1, 2, 3, 4, 67 and 8 of the drawings hereunto annexed.
2. A metal tyre for holding an elastic tyre upon the wheels of certain road vehicles
which has a raised curved surface formed upon its inside bottom face such as b*
substantially in the manner and for the purposes hereinbefore described with reference
to Figure 5 of the drawings hereunto annexed.
3. I claim the curved spring piece b substantially as and for the purposes herein before
described and illustrated in the drawings hereunto annexed.
Dated this 15th dow ful 1300
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Patentee.