IMPROVE- MENTS IN CARRIAGE WHEEL TIRES
Year: 1883

page_text: 3
LETTERS PATENT to Henry Robert Townsend of Macclesfield Street City
Road in the County of Middlesex Engineer for an Invention of "IMPROVE-
MENTS IN CARRIAGE WHEEL TIRES"
"
7
PROVISIONAL SPECIFICATION left by the said Henry Robert Townsend
at the Office of the Commissioners of Patents on the 19th May 1883.
HENRY ROBERT TOWNSEND of Macclesfield Street City Road in the County of
Middlesex Engineer "IMPROVEMENTS IN CARRIAGE WHEEL TIRES
This invention relates to improvements in the metal tires of wheels for carriages
in order to prevent them from skidding or slipping when crossing tram rails or
other surfaces
'
It is well known that the wheels of cabs and other carriages when crossing
ordinary tram rails are very liable to skid and slip thus causing a severe strain to
the vehicle and.much discomfort to the occupants of such vehicles.
Now the object of my improvements is so to construct the tires of the wheels
that they will be caused to bite the tram rails when brought in contact therewith
and thus readily pass over them.
For this purpose I mill or groove or indent the edges or surfaces of the tires
of carriage wheels by any suitable mechanical means so that in place of presenting
a smooth surface to the obstacle they may have to surmount they may be furnished
with a grooved indented projected or other suitable biting surfaces to impart
frictional holding power thereto. Or side plates with corrugated or other biting
edges may be applied to the sides of the tires of carriage wheels to effect the same
object as that previously described

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Henry Robert Townsend in the Great Seal Patent Office on the
19th November 1883.
HENRY ROBERT TOWNSEND of Macclesfield Street City Road in the County of
Middlesex Engineer "IMPROVEMENTS IN CARRIAGE WHEEL TIRES
"
This invention relates to improvements in the metal tires of wheels for carriages
in order to prevent them from skidding or slipping when crossing tram rails or
other surfaces.
It is well known that the wheels of cabs and other carriages when crossing
ordinary tram rails are very' liable to skid and slip thus causing a severe strain to
the vehicle and much discomfort to the occupants of such vehicles.
Now the object of my improvements is so to construct the tires of the wheels
that they will be caused to bite the tram rails when brought in contact therewith
and thus readily pass over them.
'1'
For this purpose I mill or groove or indent the edges or surfaces of the tires
of carriage wheels by any suitable mechanical means so that in place of presenting
a smooth surface to the obstacle they may have to surmount they may be furnished
with a grooved indented projected or other suitable biting surfaces to impart
frictional holding power thereto. Or side plates with corrugated or other biting
edges may be applied to the sides of the tires of carriage wheels to effect the same
object as that previously described.
Having thus described the nature of my invention and the manner of carrying
the same into practice I would remark that I make no claim to the construction
of carriage wheels such as are well known and in common use But what I
claim is:-
་
The improved formation of the tire or edges of carriage wheels with grooved
indented projecting or biting surfaces so as to impart frictional holding power
thereto substantially in the manner and for the purpose herein before described.
In witness whereof I the said Henry Robert Townsend have hereunto set my
hand and seal this Nineteenth day of November in the year of our Lord One
thousand eight hundred and eighty three.
HT R TOWNSEND