Improvements in and relating to Commutator-brush Carriers for Electric Machines.
Year: 1897

page_text: [Communicated from abroad by COMPAGNIE DE L'INDUSTRIE ELECTRIQUE, of Geneva,
in the Republic of Switzerland.]
Improvements in and relating to Commutator-brush Carriers for
Electric Machines.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, do hereby declare the
nature of this invention to be as follows;
The invention consists of an improved device for carrying and pressing
against the commutator or collector of an electric machine the well known carbon
or wire brushes which are intended to connect the said collector with the electric-
eircuit.
The purpose of the invention is to practically realize with a combination of
simple and cheap parts a commutator brush carrier which causes the brush to be
surely and continuously pressed against the collector and to nevertheless enable the
said brush to be easily withdrawn and replaced when worn out.
The improved carrier comprises a frame made up of plates of sheet metal or of
a suitable cast metal pivoted at one end to a shaft or rod secured to any suitable
part of the machine, the other end being formed as a hook having two edges
intended to receive the brush. The plates are connected with one another by
means of suitable distance pins or bolts and the pivot shaft or rod carries a slotted
ring which may be firmly affixed upon it by means of a clamping screw, the said
ring being also provided with an ear or lug for the purpose hereinafter mentioned.
There are further provided one or more levers pivoted to one of the distance
bolts and formed so as to project from the frame and at the same time to bear
against the brush with the object of pressing the same against the edge of the
plates. The free end of the lever or levers is or are connected by means of one or
more springs with the ear or lug of the ring and cause the said lever or levers to
press the brush against the edges of the hook.
There may further be provided one or more springs connecting the free end
of the lever or levers with the rear distance bolt.
The lever or levers may be replaced by one or more levers formed of a flat spring
bent to a V shape one end being pivoted to one of the distance bolts while the free
end acts upon the brush to hold it in the hook.
Dated this 1st day of December 1897.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.

page_text: Improvements in and relating to Commutator-brush Carriers for
Electric Machines.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, 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:―
The invention consists of an improved device for carrying and pressing against
the commutator or collector of an electric machine the well known carbon or wire
brushes which are intended to connect the said collector with the electric-circuit.
The purpose of the invention is to practically realize with a combination of simple
and cheap parts a commutator brush carrier which causes the brush to be surely
and continuously pressed against the collector and to nevertheless enable the said
brush to be easily withdrawn and replaced when worn out.
The accompanying drawing illustrates two forms of the said invention:
Figure 1 is a sectional elevation.
Figure 2 a plan-view of the same.
Figure 3 is a sectional elevation of a modified form and
Figure 4 a plan-view of the same.
In the figures the same letters of reference, refer to the same parts.
A is the axis of the brush carrier fixed to any suitable part of the machine.
BB are plates of sheet metal or of a suitable cast metal pivoted at one end to a shaft
or rod on the said axis the other end being formed as a hook having two edges' b¹
and 62 intended to receive the brush C. The plates B are connected with one
another by means of suitable distance pins or bolts E and K and the axis A
carries a slotted ring H which may be firmly fixed upon it by means of a clamping
screw the said ring being also provided with an ear or lug h for the purpose
hereinafter mentioned.
There are further provided one or more levers D pivoted to one of the distance
bolts E and formed so as to project from the frame and at the same time to bear
against the brush C with the object of pressing the same against the edge 62 of
the plates B. The free end of the lever or levers D is or are connected by means
of one or more springs G with the ear or lug h of the ring H and cause the said
lever or levers D to press the brush C against the edges 62 of the hook.
There may further be provided one or more springs G¹ connecting the free
end of the lever or levers D with the rear distance bolt K.
The lever or levers D as shown in Figures 1 and 2 may be replaced by one
or more levers D formed as shown in Figures 3 and 4 of a flat spring bent to a
V shape one end being pivoted to one of the distance bolts while the free end
acts upon the brush to hold it in the hook.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondents I declare that what I claim is :-
1. A brush carrying device for electric machines, characterized by the com-
bination of an axis A with plates B having suitable edges 61 and 62, one or more
levers D pivoted to a distance pin or bolt E and caused by means of a spring G
to bear against the edge 62 substantially as shown and described.
2. A brush-carrying device for electric machines, characterized by the com-
bination of an axis A with plates B having suitable edges 61 and 62, one or more

page_text: levers D pivoted to a distance pin or bolt E and caused by means of a spring G
to bear against the edge 62 and with one or more springs G¹ connecting the end
of the lever or levers D with a distance pin K, substantially as shown and described.
3. A brush-carrying device for electric machines, characterized by the com-
bination of an axis A with plates B having suitable edges 61 and 63, one or more
levers D formed of a flat spring bent in form of a V and pivoted to a distance
pin E and caused by means of a spring G to bear against the edge 63 substantially
as shown and described.
Dated this 3rd day of August 1900
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.