Improvements in Street Sweepers.
Year: 1897

page_text: Date of Application, 7th May, 1897
Complete Specification Left, 7th Feb., 1898-Accepted, 26th Mar.,
1898
Improvements in Street Sweepers.
I, JAMES EDWARD KNOX, of 8, Wellington Street, East, in the City of Toronto,
in the County of York, in the Province of Ontario, Canada, Manufacturer's Agent,
do hereby declare the nature of this invention to be as follows:-
:―
My invention relates to improvements in street sweepers and the object of the
invention is to provide a simple, compact and non-vibratory form of support and
positive and direct drive for the brush, which will not be likely to get out of order
when in use and may be readily thrown out of gear when not in use and it consists
essentially of a bevel pinion drive for the rear end of the brush, the driving
pinion being secured on the end of a shaft supported on suitable bearings and
brackets and driven at the front end from the main axle of the machine by a bevel
pinion meshing with the bevel wheel secured to the main wheel, such bevel pinion
being arranged to be thrown in and out of gear and the parts being otherwise
constructed and rigidly supported in the manner hereinafter more particularly
explained.
Fig. 1 is a perspective view of a sweeper showing my improvements.
Fig. 2 is a detail of the rear bracket in which the shaft of the broom and main
driving shaft are journalled.
Fig. 3 is an enlarged detail showing the mechanism for throwing the bevel
pinion at the front end of the driving shaft out of mesh with the bevel wheel
secured to the main driving wheel.
Fig. 4 is a perspective detail partially in section showing the peculiar form of
fifth wheel adapted for use in my sweeper.
In the drawings like letters of reference indicate corresponding parts in each
figure.
A is the platform or main frame of the machine, which is suitably supported
at the rear end by the ground wheel B and at its front end by a wagon truck with
a peculiarly formed fifth wheel, so constructed as to prevent vibration as will be
understood from its specific description hereinafter set forth.
C is the rotary brush. C is the shaft of the same. D is an obtuse angle-shaped
bracket provided with journal boxes D1 and D2 securely bolted to the same and
through which the axle shaft E and shaft C¹ respectively extend.
1 is a bar, which is bolted at the rear end to the bracket on the inner side of
the journal box D. The bar F extends forwardly as shown and has an O G bend
whereby it is made to extend to the inside of the ground wheel B. The front
end of the bar F is pivoted on the axle.
G is a bar securely bolted at the rear end to the outside of the bracket D. The
front end of the bar G is bolted to the bracket FI pivotally swung at the front end
on the axle B. The driving shaft E extends at the front end into the bracket H
in which it is journalled.
d are lugs formed at the upper side of the journal box D' and connected by the
Co
017

page_text: forked rod d¹ to the lever I, which is of any suitable construction and by which
the brush and its driving parts are raised.
I merely show a portion of the lever as I do not claim anything in its specific
operation in this Specification.
C is a bevel wheel secured at the outer end of the brush shaft C' outside the
journal box D and E is a bevel pinion secured on the rear end of the driving
shaft E and meshing with the bevel pinion C. The opposite end of the brush
shaft is supported in a suitable journal, which it is not necessary to describe as
it forms no feature of my present invention.
J is a bevel wheel secured to the hub outside of the ground wheel B. Es is
a bevel pinion located at the front end of the driving shaft and designed in
its operative position to mesh with the bevel wheel J. The bevel pinion E3 has
a square hole e, which fits over a corresponding square enlarged portion e¹ formed
on the shaft E.
K is a bar, which is provided with a bent ring shaped end K. The end K¹
fits over the hub e of the bevel pinion E3 and is secured from longitudinal dis-
placement upon it by the ring flange e secured to the hub to the outside thereof.
L, L are bolts having flat heads 7. The bolts L, L extending through the
bracket H being secured therein at the lower end by suitable nuts. The upper
flat heads of the bolts are provided with slots through which extend the bar K.
is a gripping pin secured at the front end of the bar K¹ and designed to pro-
vide for the longitudinal manipulation of the bar.
M is a pin having an eye to which is attached a chain m which is suitably,
secuted to the bracket H
In the position shown in the drawing the bevel pinion E³ is in mesh with the
bevel wheel J. By withdrawing the pin M and pushing upon the pin K the
bevel pinion may be thrown backwardly over the square portion e¹ of the shaft E
out of engagement with the bevel wheel J. This is of course preferably done
when the machine is being driven with the brush raised and not in use.
When
the brush is upon the ground in active operation it will be understood that such
gear pinion E will always be in mesh with the bevel gear pinion.
In a former invention I used sprocket chain and wheels for communicating
motion from the main axle to the bevel wheels. In this form I also necessarily
had to use a universal joint between the sprocket pinion and its bevel wheel and
the bevel wheel on the end of the brush shaft. Consequently I found that pound-
ing action was imparted to the brush which seriously impaired its usefulness.
By the form of drive which I now show it will be clearly seen that there will
be no vibratory or pounding action in the brush as the angular bracket 1), bevel
pinion, shaft and wheels constructed as herein before described serve to provide
a very positive and direct drive free from vibration and not likely to get out of
order.
As all the driving gear is situated preferably outside the wheel and as I pro-
vide inner mudguards Bs for the ground wheel on the driving side it will be seen
that there will be no danger of the front portion of the driving gear becoming
clogged. Nor will there be any danger of the bevel pinions connecting the rear
end of the driving shaft with the brush shaft from being separated and mud or
dirt accumulating therein as such bevel gears are held tightly in mesh.
In order to provide against the action of the brush tending to tear out the
ring bolt of the front axle I make the fifth wheel thereof in two parts. The
lower portion is secured to the axle proper and consists of the usual ring N with
central opening n larger than the king bolt N¹. The upper ring portion No of
the fifth wheel which is secured to the beams of the body I provided with a down-
wardly depending outer flange n', which is designed to fit the outer edge of the
ring N closely. At the edge of the inner hole through which the king bolt N
extends, I provide a downwardly extending flange n³ which passes through the
annular opening n formed between the inner edge of the bolt n and the king
bolt.

page_text: It will thus be seen that instead of the strain which the front axle necessarily
sustains falling on the king bolt, such strain now falls upon the flanges n³ and n³
thus relieving the king bolt and securely bracing the fifth wheel.
Dated the 7th day of May 1897.
Improvements in Street Sweepers.
I, JAMES EDWARD KNOX, of 8, Wellington Street, East, in the City of Toronto.
in the County of York, in the Province of Ontario, Canada, Manufacturer's Agent,
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 follow-
ing statement:—
My invention relates to improvements in street sweepers and the object of the
invention is to provide a simple, compact and non-vibratory form of support and
positive and direct drive for the brush, which will not be likely to get out of order
when in use and may be readily thrown out of gear when not in use, and it consists
essentially of a bevel pinion drive for the rear end of the brush, the driving
pinion being secured on the end of a shaft supported on suitable bearings and
brackets and driven at the front end from the main axle of the machine by a bevel
pinion meshing with the bevel wheel secured to the main wheel, such bevel pinion
being arranged to be thrown in and out of gear and the parts being otherwise
constructed and rigidly supported in the manner hereinafter more particularly
explained with reference to the drawings filed with my Provisional Specification.
Figure 1 is a perspective view of a sweeper showing my improvements;
Figure 2 is a detail of the rear bracket in which the shaft of the broom and
main driving shaft are journalled;
Figure 3 is an enlarged detail showing the mechanism for throwing the bevel
pinion at the front end of the driving shaft out of mesh with the bevel wheel
secured to the main driving wheel;
:
Figure 4 is a perspective detail partially in section showing the peculiar form
of fifth wheel adapted for use in my sweeper.
In the drawings like letters of reference indicate corresponding parts in each
figure.
A is the platform or main frame of the machine which is suitably supported
at the rear end by the ground wheel B and at its front end by a wagon truck with
a peculiarly formed fifth wheel, so constructed as to prevent vibration as will be
understood from its specific description hereinafter set forth.
C is the retary brush. C₁ is the shaft of the same. D is an obtuse angle-shaped
bracket provided with journal boxes D1 and D2 securely bolted to the same and
through which the axle shaft E and shaft C₁ respectively extend.
F is a bar, which is bolted at the rear end to the bracket on the inner side of
the journal box D. The bar F extends forwardly as shown and has an OG bend
whereby it is made to extend to the inside of the ground, wheel B. The front
end of the bar, F is pivoted on the axle.
Gis a bar securely bolted at the rear end to the outside of the bracket D. The
front end of the bar G is bolted to the bracket H pivotally swung at the front end
on the axle B. The driving shaft E extends at the front end into the bracket H
in which it is journalled,

page_text: d are lugs formed at the upper side of the journal box D¹ and connected by the
forked rod d to the lever I, which is of any suitable construction and by which
the brush and its driving parts are raised.
I merely show a portion of the lever as I do not claim anything in its specific
operation in this Specification.
C3 is a bevel wheel secured at the outer end of the brush shaft C' outside the
journal box D and E is a bevel pinion secured on the, rear end of the driving
shaft and meshing with the bevel pinion C³. The opposite end of the brush
shaft is supported in a suitable journal, which it is not necessary to describe as
it forms no feature of my present invention.
J is a bevel wheel secured to the hub outside of the ground wheel B. E is
a bevel pinion located at the front end of the driving shaft E and designed in
its operative position to mesh with the bevel wheel J. The bevel pinion E has
a square hole e, which fits over a corresponding square enlarged portion c¹ formed
on the shaft E.
K is a bar, which is provided with a bent ring shaped end K. The end K¹
fits over the hub of the bevel pinion E and is secured from longitudinal dis-
placement upon it by the ring flange secured to the hub to the outside thereof.
L, L are bolts having flat heads 7. The bolts L, L extend through the
bracket II being secured therein at the lower end by suitable nuts. The upper
flat heads of the bolts are provided with slots through which extends the bar K.
is a gripping pin secured at the front end of the bar K' and designed to pro-
vide for the longitudinal manipulation of the bar.
M is a pin having an eye to which is attached a chain m which is suitably
secured to the bracket H.
In the position shown in the drawing the bevel pinion E is in mesh with the
bevel wheel J. By withdrawing the pin M and pushing upon the bar K the
bevel pinion may be thrown backwardly over the square portion c¹ of the shaft E
out of engagement with the bevel wheel J. This is of course preferably done
when the machine is being driven with the brush raised and not in use.
the brush is upon the ground in active operation it will be understood that such
gear pinion E will always be in mesh with the bevel gear pinion.
When
In a former invention I used sprocket chain and wheels for communicating
motion from the main axle to the bevel wheels. In this form I also necessarily
had to use a universal joint between the sprocket pinion and its bevel wheel and
the bevel wheel on the end of the brush shaft. Consequently I found that a pound-
ing action was imparted to the brush which seriously impaired its usefulness.
By the form of drive which I now show it will be clearly seen that there will
be no vibratory or pounding action in the brush as the angular bracket D, bevel
pinions, shaft and wheels constructed as herein before described serve to provide
a very positive and direct drive free from vibration and not likely to get out of
order.
As all the driving gear is situated preferably outside the wheel and as I pro-
vide inner mudguards B for the ground wheel on the driving side it will be seen
that there will be no danger of the front portion of the driving gear becoming
clogged. Nor will there be any danger of the bevel pinions connecting the rear
end of the driving shaft with the brush shaft from being separated and mud or
dirt accumulating therein as such bevel gears are held tightly in mesh
In order to provide against the action of the brush tending to tear out the
ring bolt of the front axle I make the fifth wheel thereof in two parts. The
lower portion is secured to the axle proper and consists of the usual ring N with
central opening n larger than the king bolt N. The upper ring portion Na of
the fifth wheel which is secured to the beams of the body I provide with a down-
wardly depending outer flange n¹, which is designed to fit the outer edge of the
ring N closely. At the edge of the inner hole n through which the king bolt N
extands, I provide a downwardly extending flange n³ which passes through the

page_text: annular opening formed between the inner edge of the bolt and
bolt.
the king
It will thus be seen that instead of the strain which the front axle necessarily
sustains falling on the king bolt, such strain now falls upon the flanges n³ and n³
thus relieving the king bolt and securely bracing the fifth wheel.
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
claim is:
L
:
1. In a sweeper, in combination, the rotary brush and shaft thereof supported
in suitable bearings at one end, the angular bracket and journal boxes forming
the bearing at the opposite end, the bars pivoted on the main axle and connected
to the angular bracket at the rear ends thereof, the main driving shaft, the
journal bracket at the rear end of same on the angular bracket, the meshing
bevel gear pinions on the outer and rear ends of the brush shaft and driving shaft
respectively, the supporting journal for the front end of the driving shaft connected
to the outer bar, the bevel pinion in proximity to such journal and the bevel
wheel secured to the outer face of the ground wheel and meshing with the bevel
pinion as and for the purpose specified.
2. In a sweeper, in combination, the rotary brush and shaft thereof supported
in suitable bearings at one end, the angular bracket and journal box forming the
bearing at the opposite end, the bars pivoted on the main axle and connected to
the angular bracket at the rear ends thereof, the main driving shaft, the journal
bracket at the rear end of same on the angular bracket, the meshing bevel gear
pinions on the outer and rear ends of the brush shaft and driving shaft respect-
ively, the bracket pivotally swung on the outer end of the main axle and having
secured to it the front end of the outer bar and forming a support for the front
end of the driving shaft, a square enlargement on such shaft, the bevel pinion
fitting thereon, the bevel wheel secured to the outside of the drive wheel and an
adjusting bar connected to the bevel pinion as and for the purpose specified.
3. In a sweeper, in combination, the rotary brush, and shaft thereof supported
in suitable bearings at one end, the angular bracket and journal boxes forming
the bearing at the opposite end, the bars pivoted on the main axle and connected
to the angular bracket at the rear ends thereof, the main driving shaft, the journal
bracket at the rear end of same on the angular bracket, the meshing bevel gear
pinions on the outer and rear ends of the brush shaft and driving shaft res-
pectively, the bracket pivotally swung on the outer end of the main axle and
having secured to it the front end of the outer bar and forming a support for
the front end of the driving shaft, square enlargements on such shaft, the bevel
pinion fitting thereon, the bevel wheel secured to the outside of the drive wheel,
the bolts passing through the bracket and provided with flat heads having slots
in them, and the longitudinal adjustable bar having a ring-shaped end fitting.
within an annular recess on the hub of the bevel pinion as and for the purpose
specified.
4. In a sweeper in combination, the rotary brush and shaft thereof supported
in suitable bearings at one end the angular bracket and journal boxes forming
the bearing at the opposite end, the bars pivoted on the main axle and connected
to the angular bracket at the rear ends thereof, the main driving shaft, the
journal bracket at the rear end of same on the angular bracket, the meshing bevel
gear pinions on the outer and rear ends of the brush shaft and driving shaft res-
pectively, the bracket pivotally swung on the outer end of the main axle and
having secured to it the front end of the outer bar and forming a support for
the front end of the driving shaft, square enlargements on such shaft, the bevel
pinion fitting thereon, the bevel wheel secured to the outside of the drive wheel,
the bolts passing through the bracket and provided with flat heads having slots
in them, the longitudinal adjustable bar having a ring-shaped end fitting within
an aunular recess on the hub of the bevel pinion and the retaining pin designed

page_text: to be inserted into a hole in the adjusting bar between the heads as and for the
purpose specified.
Dated the 7th day of February 1898.
:
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.