IMPROVEMENTS IN THE MANUFACTURE OF THE PULLEY FRAMES OF SLIDING CHANDELIERS AND GASALIERS
Year: 1884

page_text: VIDIŲNAL DIECIFICATION,
We BRIAN KNIGHT and JOHN DURANT both of N° 34 Tenby Street Birmingham
in the County of Warwick Stampers and Die Sinkers do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN THE MANUFACTURE OF THE PULLEY
FRAMES OF SLIDING CHANDELIERS AND GASALIERS" to be as follows :—
Our invention consists in manufacturing pulley frames principally from sheet
metal in the manner hereinafter described.
;
Pulley frames for sliding chandeliers and gasaliers to which our invention applies
consist of two three or more radial forked arms between the ends of the branches.
of which pulleys are supported and turn for the counterbalance chains of the
chandelier or gasalier to pass over the said forked arms radiating from a tubular
collar by which the pulley frame is attached to the down pipe of the chandelier or
gasalier.
In making a pulley frame for carrying three pulleys according to our invention
we cut out by a press strips of strong sheet brass or other strong metal or alloy
each strip having a length about double that of the pulley arm to be mado. Each
end of the strip is rounded and near each end a hole is cut or pierced for receiving.
the axis of the pulley. After the ends have been pierced the strip is bent at its
middle so as to bring the bent parts or arms at an obtuse angle with one another.
We make the short tubular collar of the pulley frame either from tubing or by
casting. The said tubular collar has a length equal to the breadth of the double
arm described and in the outside of the said collar three equidistant longitudinal
concave depressions or channels are made.
In making the pulley frame three of the bent or double arms described are
taken and the convex side of the bend or angle of each double arm is soldered or
brazed in one of the depressions in the tubular collar. By thus soldering or
brazing the three double arms to the tubular collar three forked equi-distant
radial arms are produced the arms of one bent piece being situated parallel to an
arm of the adjacent bent pieces. The pulley frame thus made is now ready to
receive the pulleys.
In making a pulley frame for carrying two pulleys the shaped and pierced strips
described are unbent and the tubular collar is cut away or flattened at opposite
Bides. To these flattened parts of the collar the middles of two straight strips are
soldered so as to form a pulley frame having two forked parallel arms in the samo
line to the ends of the branches of which arms the pulleys are connected.
Our invention is applicable to pulley frames having more than three forked radial
Arms.
:

page_text: COMTELLIE
DEVIFICATION,
We BRIAN KNIGHT and JOHN DURANT both of N° 34 Tenby Street Birmingham
in the County of Warwick Stampers and Die Sinkers do hereby declare the nature
of our Invention for :-"IMPROVEMENTS. IN. THE MANUFACTURE OF THE PULLEY
FRAMES OF SLIDING CHANDELIERS AND GASALIERS" and in what manner the same
is to be performed to be particularly described and ascertained in and by the
following statement:―
Our invention consists in manufacturing pulley frames principally from sheet
metal in the manner herein after described.
Pulley frames for sliding chandeliers and gasaliers, to which our invention applies.
consist of two, three or more radial forked arms between the ends of the branches
of which, pulleys are supported and turn for the counterbalance chains of the
chandelier or gasalier to pass over the said forked arms radiating from a tubular
collar by which the pulley frame is attached to the down pipe of the chandelier or
gasalier.
•
In making a pulley frame for carrying, three pulleys according to our invention
we cut out by a press, strips of strong sheet brass or other strong metal or alloy,
each strip having a length about double that of the pulley arm to be made. Each
end of the strip is rounded and near each end a hole is cut or pierced for receiving
the axis of the pulley. After the fends have been pierced the strip is bent at its
middle so as to bring the bent parts or arms at an obtuse angle with one another.
We make the short tubular collar of the pulley frame either from tubing or by,
casting. The said tubular collar has a length, equal to the breadth of the double
arm described and in the outside of the said collar, three equi-distant longitudinal
concave depressions or channels are made."
In making the pulley frame, three of the bent or double arms described aro
taken and the convex side of the bend or angle of each double arm is soldered or
brazed in one of the depressions. in the tubular collar. By thus soldering or
brazing the three double arms to the tubular collar, three forked equi-distant radial
arms are produced the arms of one bent piece being situated parallel to an arm of
the adjacent bent pieces. The pulley-frame, thus made is now ready to receive the
pulleys.
In making a pulley frame for carrying two pulleys the shaped and pierced strips
described are unbent and the tubular collar is cut away or flattened at opposite
sides. To these flattened parts of the collar the middles of two straight strips are
soldered so as to form a pulley frame having two forked parallel arms in the same
line, to the ends of the branches of which arms the pulleys are connected.
Our invention is applicable to pulley frames having more than three forked
radial arms.
Figure 1, represents in plan and Figure 2 in side elevation a pulley frame for
carrying two pulleys made according to our invention; Figures 3, 4, 5, 6 and 7
represent the parts of the enma

page_text: .
a a are the sheet metal strips constituting the forked arms between the ends of
which the pulleys b, b are situated and turn and c is the short tubular collar to
which the strips are connected and by which the pulley frame is attached to the
down pipe of the chandelier or gasalier.
In making the pulley frame we cut out at a press, strips having round ends of
the kind represented in Figure 3, each end of the strip being pierced with a hole d
for the axis of the pulley b to work in. The short tubular collar o has flattened
Bides at c², o³.
Two of the shaped strips Figure 3 being soldered at their middles on opposite.
sides of the collar ca pulley frame is formed as represented in plan in Figure 5;
longitudinal section in Figure 6 and end elevation in Figure 7 and by securing the
pulleys b, b in the ends of the forked parallel arms a the pulley frame is completo
as represented in Figures 1 and 2.
Figure 8 represents in plan. a pulley frame for carrying three pulleys' made
according to our invention and Figures 9, 10, 11 and 12 represent parts of the
same.
To form this pulley frame the cut out and pierced sheet metal strips a are bont
at their middle so as to bring the arms or bent parts at an obtuse angle with one
another as represented in Figure 9 and the short collar c, represented separately in
Figure 10, has three equi-distant concave depressions c³, c³, c³ made in it of a length
equal to the double arm a, a Figure 9.
Three double arms of the kind represented in Figure 9 are soldered or brazed to
the collar c in the manner represented in plan in Figure 11 and side elevation in
Figure 12 to form the pulley frame, the convex side of the bend or angle of each
double arm being fixed in one of the depressions c³ in the collar cas represented.
By fitting the axes of the pulleys b, b in the holes d in the ends of the parallel
branches of the frame as illustrated in Figure 8, the pulley frame is completo.
Instead of using a separate collar to which the straight or bent arms are
attached and by which collar the pulley frame is secured to the down pipe, the
collar may be made from the arms themselves in the following manner.
In this modification the middle of each straight strip a represented in Figure 13
has at its middle two wings or pieces e, e which are porforated with holes f and tho
perforated wing pieces e, e are bent parallel to one another and at right angles to
the strip a to form one half of the collar. Figure 14 represents in plan and end
elevation two of the strips fashioned in the manner described to form the pulley
frame and its collar. The half collar e of one of the strips is made wider than the
half collar on the other strip so that the smaller half collar may fit within the
larger one. When the half collars e, e are fitted together as represented in plan in
Figure 15; longitudinal section in Figure 16 and end elevation in Figure 17, the
perforations f. in the two half collars e coincide and a tubular collar is formed which
is fitted on and fixed to the down pipe g of the chandelier or gasalier as represented
in the finished pulley frame Figures 18 and 19 in the same manner as the separate
collar c herein before described.
In the bent strips used for making pulley frames for carrying three (or more)
pulleys the forked parts from which the collar is made, aro situated at the angle of
the bent strips as represented in Figure 20 each forked part e of the several bent
strips a being of a different width from the others so that the several forked
parts e may engage with one another in the manner represented in the finished
pulley frame represented in side elevation in Figure 21 and plan in Figure 22 for
the purpose of bringing the holes f in the three forked parts coincident with one
another. The collar thus formed with the arms a, a of the pulley frame is fixed to
the down pipe g in the usual way. The several parts forming the collar may be
soldered together or they may be left unsoldered as the down pipe holds them
securely in their respective places.
In making pulley frames having more than three forked radial arms the sheet
metal strips, with or without wing pieces, are bent at their middles at the required
angle according to the number of arms required in the frame,

page_text: .
Having now-particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed We declare that what
we claim is
"
>
First Making the pulley frames of sliding chandoliers and gasaliers either from
two straight fashioned and pierced strips of sheet metal or from a series of strips
of sheet metal bent'in the manner described and illustrated, the said strips being
arranged to form the pulley frame and secured to a tubular collar which is fixed
to the down pipo of the chandelier or gasalier substantially as herein before
described and illustrated in Figures 1 to 12 both inclusive of the accompanying
Drawings.
!.
Secondly-Making the collar by which the pulloy frame is fixed to the down
pipe of the chandelier or gasalier from the strips of sheet metal of which the pulley
frame is made substantially as herein before described and illustrated in Figures 13
to 22 both inclusive of the accompanying Drawings.
TCL CL