IMPROVEMENTS IN CARPET SWEEPERS
Year: 1883

page_text: LETTERS PATENT to Herbert John Haddan, of Kensington, Middlesex, for an
Invention of IMPROVEMENTS IN CARPET SWEEPERS communicated to him
from abroad by George Washington Gates, of the State of Michigan, United
States
PROVISIONAL SPECIFICATION left by the said Herbert John Haddan at
IN
the Office of the Commissioners of Patents on the 14th September 1883.
HERBERT JOHN HADDAN, of Kensington, Middlesex, "IMPROVEMENTS
CARPET SWEEPERS," a cominunication to me from abroad by George Washington
Gates, of the State of Michigan, United States,
The invention refers to the method of keeping up a friction between the driving
wheels and the brush roller; and to the method of emptying the dust from the
machine. The invention consists first in producing the frictional contact by means
of a spring, not connected directly with the driving wheels or brush roller; also in
constructing the case of the sweeper in two parts hinged together, that the case
may be easily emptied for the discharge of the contents of the dust pans; also in
supporting each of the driving wheels at one end of a bent arm, the other end of
which projects into a groove or notch in the wall of the casing.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent nied
by the said Herbert John Haddan in the Patent Office on the 14th March
1884.
"
HERBERT JOHN HADDAN, of Kensington, Middlesex, "IMPROVEMENTS IN
CARPET SWEEPERS," a communication to me from abroad by George Washington
Gates, of the State of Michigan, United States,
The first part of the invention refers to the method of keeping up a friction
between the driving wheels and the brush-roller; and the second part to the
method of emptying the dust from the machine; and the objects of the invention
are, first, to produce the frictional contact by means of a spring, not connected
directly with the driving wheels or brush-roller; secondly, to so construct the case
of the sweeper in two parts hinged together, that the case may be easily emptied
for the discharge of the contents of the dust pans; and lastly to simplify the
construction and to render all parts of the machine accessible to the user without
taking the machine apart.
Fig 1 is a vertical sectional view of a sweeper, embodying the invention, on the
line X X of Figure 5.
Fig 2 is a longitudinal vertical sectional view of the sweeper case (with the
driving wheels in perspective) on the line Y Y of Fig 5.
Fig 3 is a vertical sectional view of a sweeper on the line Z Z of Fig 5, showing
the arrangement of the driving wheels, brush-roller and grooves which support the
driving wheels.
Fig 4 is an end view of the sweeper case opened.
Fig 5 is a plan view of the sweeper case inverted.
Fig 6 is a part of the brush-roller, friction pulley and end bearing.
Fig 7 is one of the driving wheels with shank attached; and
Fig 8 is a metallic slotted bearing which is used in combination with the
brush-roller.
Similar letters refer to similar parts throughout the several figures.
In the drawings, CC represents the sweeper case, which is made in two parts,
hinged together at the top, as shown at n in Fig 1. B is the brush-roller,
journalled to that part of the case which does not contain the dust pan. D is the
dust pan, which may be made of wood or any suitable material, and is attached to
the side of the sweeper case not bearing the brush roller. is the dust guide
made preferably of sheet metal, and its office is to convey and guide the dust into
the pan when the brush roller is revolved away from it; and when the roller is
revolved toward the pan the dust is deposited directly in it without passing over
the guide. The brush roller B may be provided with the pulley P. W W are
the driving wheels, and each wheel may be provided with a removable shank
constructed in the form shown by K in Fig 7. These shanks slide in grooves in
the end of the sweeper case and their free ends slide in corresponding grooves in
the partition, E, as shown by the dotted lines, g, g, in Fig 3 and by g and g¹
in Fig 2. They hold the wheels in the position shown in Fig 3, and their form
may be varied if desired.
Šis a spring, which I have shown passing over the sweeper case, and so
constructed as to hold the case in the position shown in Fig 1, when the sweeper
is in use, and to hold the case open as shown in Fig 4, when the sweeper is opened
for cleaning or for removing the dust. E is a partition provided with the groove g³,
before referred to, similar to the groove g, found in the end wall of the sweeper
case. If desired, the position of the shank may be reversed so that it will lie in

page_text: the groove g¹, and its free ends be supported by and slide in the groove, g. The
position of the wheel and shank in the groove is shown in Fig 2.
L L are the shoes which rest on the carpet and which are at that end of the
case opposite the driving wheels. One of these shoes may be so constructed as to
form a bearing for one end of the brush-roller in the form shown by O in Fig 4.
The other end of the roller rests in the slotted bearing shown in Fig 3 and 8.
The shoes L L may be of wire, bent into such form as to be readily clasped upon
the sweeper case, as shown in the drawings; and the brush-roller may be removed
by bending that shoe which serves as a bearing, outward and away from the case,
as shown by the dotted line, l, in Fig 4. Then when the force is removed, the
shoe will spring back into position. m is a plate designed merely to cover the
bearing of the brush-roller and it may be made of any desirable form and size,
being attached to the sweeper case, on the outside.
By means of the hinged case and spring, S, I am able to preserve a continuous
pressure upon the brush roller, by the drive wheels, and also to increase the
pressure and lower the brush roller at the same time, by simply pressing downward
on the hand of the sweeper.
The form and construction of the spring and hinges may be varied as desired.
Having thus described the invention what I claim to have invented and desire
to secure by letters patent is :-
1. In a carpet sweeper, the case C C, hinged at the top and made in two
sections, in combination with the spring S, and so constructed as to open and shut
substantially as and for the purpose described.
2nd. The combination of the following parts, viz: the case CC, made in two
parts, having grooves g, the driving wheels W W, supports K, and brush roller.
In witness whereof I the said Herbert John Haddan have hereunto set my
hand and seal this 13th day of March A.D. 1884.
п.
H. J. HADDAN
(S.)