Improvements in the Manufacture of Pulley Carriers for Pulley Racks for Blind Cords and the like.
Year: 1889

page_text: Date of Application, 18th May, 1889-Accepted, 22nd June, 1889
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Pulley Carriers for Pulley
Racks for Blind Cords and the like.
We WILLIAM BODILL, WILLIAM BODILL PARKER and JOSEPH RICHARD PARKER
all of the firm of Bodill Parker & Co. of 35 & 36 Great Hampton Row Birmingham
in the County of Warwick Brass Founders and BENJAMIN WELDON of Gower Street
Manor of Aston in the County of Warwick, Foreman in the employment of the said
firm 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 object of this Invention is to manufacture the carriers for the pulleys of pulley
racks for blind cords and the like in such a manner that the manufacture is effected in
a more perfect and economical manner than hitherto and so that the said carriers can
all be made with certainty and facility of exactly the same size so that a pulley rack
of a specified size will always fit any rack of a corresponding size.
c is
According to this Invention the said pulley carriers are made from sheet metal cut
or stamped out and stuck up and afterwards bent or turned upon itself so as to
constitute the carrier. This is a system of manufacture which presents advantages in
the before mentioned respects over the system hitherto resorted to of casting the
carriers and afterwards filing them up to fit the racks which latter system is costly
and does not ensure the production of carriers of uniform size and shape. Figure 1
of the accompanying drawing represents in plan and edge view a blank cut or
stamped and struck up to be afterwards bent upon itself and made into a carrier as
shewn in the subsequent Figures. The blank is formed with the part a to constitute
the front of the carrier. is the portion forming the back part of the carrier.
the part which forms the guide at one end of the back of the carrier and d is the part
which forms the guide at the other end of the carrier and also the pawl or retaining
piece which engages in the rack teeth at the back of the rack piece with which the
carrier is used. and d² are the recessed parts which engage with the edges of the
rack piece. e are projecting picces which when the carrier is completed come into
line with the part b. are the holes for axis of the pulley. is a struck up part
which is formed the hole g for receiving the rivet 2 securing the spring h.
a² is the
part which forms, the connecting piece between the front and back parts. The blank
is bent upon itself as shewn in Figure 2 and then the part is bent up as shewn in
Figure 3 and the part c is turned down as shewn in Figure 4. The part a is then
turned up as shewn in Figure 4. Or the foregoing operations may be performed in
any other convenient relative order. The pulley and spring are shown in place
and the pulley and carrier completed in Figure 6. Figures 7 to 11 shew another
form of pulley carrier made according to the Invention. Figure 7 shewing in plan
and edge view the blank made from sheet metal. The parts a and b are connected
by the piece a² the guides for running in the rack piece being formed by the struck
up edges of the piece 6 the spring hitself engaging with the rack teeth. Figures 8
and 9 shew how the blank is bent up and Figure 10 shews the completed pulley and
carrier.
in
It is to be understood that the invention is not limited to the exact shapes of
carriers illustrated in the drawings.
Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
:-
1. The manufacture of pulley carriers for pulley racks for blind cords or the like
by forming a blank from sheet metal and then doubling or folding the blank upon
itself as hereinbefore described.

page_text: 2. The pulley carrier formed or manufactured as hereinbefore described and shewn
in Figures 1 to 6 of the accompanying drawing.
3. The pulley carrier formed or manufactured as herein before described and shewn
in Figures 7 to 10 of the accompanying drawing.
Datad thi 10L 1
1000
J. H. JOHNSON & Co.,
Agents.