IMPROVEMENTS IN WINDOW SASH PULLEYS
Year: 1878

page_text: LETTERS PATENT to William Morgan-Brown, of the Firm of Brandon and
Morgan-Brown, Engineers and Patent Agents, of 38, Southampton Buildings,
London, and 1, Rue Laffitte, Paris, for the Invention of "IMPROVEMENTS IN
WINDOW SASH PULLEYS." A communication from abroad by Benjamin
Davis Washburn, of Boston, Massachusetts, United States of America,
Merchant.
Sealed the 11th October 1878, and dated the 11th April 1878.
PROVISIONAL SPECIFICATION left by the said Willian Morgan-Brown at
the Office of the Commissioners of Patents on the 11th April 1878.
WILLIAM MORGAN-BROWN, of the Firm of Brandon and Morgan-Brown, Engineers
and Patent Agents, of 38, Southampton Buildings, London, and 1, Rue. Laffitto,
Paris. "IMPROVEMENTS IN WINDOW SASH PULLEYS." [A communication from
abroad by Benjamin Davis Washburn, of Boston, Massachusetts, United States of
America, Merchant.]
This Invention of improvements in window sash pulleys relates to an improve-
ment in that class of pulleys which are used in connection with window frames and
sashes, and the object of the Invention is to produce a cheap and effective device for
the purpose.
The Invention consists in cutting a portion of the face plate to form the opening
for the pulley, separating the piece so cut at the centre, and turning up each end of
the cut portion over the edges of the face plate opposite the pulley, and so securing
the same together without the use of rivets or other fastenings.
The Invention further consists in the interposition between the two wrought metal
discs, of which the pulley consists, of a filling consisting of wood, hard rubber, iron,
glass, or other suitable substance, for the purpose of giving a full bearing to the
pulley wheel on its spindle.
Referring to the Drawings,--
Figure 1 represents a side elevation of a window sash pulley and its casing,

page_text: embodying a feature of the Invention; Figure 2 is a plan or top view of the same;
Figure 3 is a vertical longitudinal section.
Figure 4 is a section of the pulley wheel.
Figure 5 is a modification of the Invention.
And Figure 6 is a view of one of the sides of the casing, and also a view of the
face plate of the same, showing another form of fastening.
A is the face plate, to be made of brass or other metal; B is the casing, and
consists of two plates or discs of wrought sheet metal, the upper edges conforming
to the contour of the pulley. The ends of the casing are bent so as to meet, and the
strip cut from the centre of the plate is turned up at each side and bent over the
upper edges, as shewn at G in Figures 1 and 3, whereby the sides of the casing are
secured together and to the face plate without any other fastening. A rivet may
te used in some cases, as shown at g, Figure 3, if found advisable. The side pieces
may be further connected to the face plate A by means of tangs or projections formed
on the lower edges of the side picces of the casing and passing through holes in the
face plate, as shown at a in dotted lines in Figures 1 and 3. These projections are
riveted in the face plate. The ends of the casing may be secured together by a
bolt, as shown at F, Figure 3, and the piece cut from the face plate be bent over the
same, as shown in Figure 3.
Another method of securing the face plate to the side pieces of the casing is shown
in Figure 5. The piece is cut from the centre of the face plate and turned up per-
pendicularly, as shown, a cross-shaped piece is then riveted to this upright strip h
and the two ends of the cross bar i pass into holes in the side pieces when they
aro riveted. The lower end of the cross picce rests upon the face plate, and the
upper end extends to the top edge of the casing at that point.
In Figure 6 the lower edges of each of the side casings are bent over to form the
face plate, the opening O in the latter extending the whole length or nearly so of
the face plate. A piece of sheet metal of the form shown in Figure 7 has its square
end inserted inside the ends of the casing, and the pointed end is then bent over
on the outside, by which means the two side pieces of the casing are held together,
and the pointed ends serve to hold the casing in the window frame where they are
inserted.
The pulley wheel is composed of two sheet metal plates or discs struck up in a die
and joined together by means of rivets d, as shown in Figures 3 and 4.
As thus constructed the edges of the holes through which the spindle passes are
liable to cut or wear the latter, and in order to obviate this difficulty there is inter-
posed between the two discs at the central portion a block or filling D consisting of
wood, hard rubber, metal, glass, composition, vegetable, or horn, or other suitable
material, by which means a solid bearing for the pulley upon the spindle is
attained.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Morgan-Brown in the Great Seal Patent Office on the
11th October 1878.
WILLIAM MORGAN-BROWN, of the Firm of Brandon and Morgan-Brown,
Engineers and Patent Agents, of 38, Southampton Buildings, London, and 1, Rue
Laffitte, Paris. "IMPROVEMENTS IN WINDOW SASII PULLEYS." A communication
from abroad by Benjamin Davis Washburn, of Boston, Massachusetts, United States
of America, Merchant.
This Invention of improvements in window sash pulleys relates to an improve-
ment in that class of pulleys which are used in connection with window frames and
sashes, and the object of the Invention is to produce a cheap and effective device for
the purpose.
The Invention consists in cutting a portion of the face plate to form the opening
for the pulley, separating the piece so cut at the centre and turning up each end of
the cut portion over the edges of the face plate opposite the pulley, and so securing
the same together without the use of rivets or other fastenings.
The Invention further consists in the interposition between the two wrought metal
discs of which the pulley consists of a filling consisting of wood, hard rubber, iron,
glass, or other suitable substance for the purpose of giving a full bearing to the
pulley wheel on its spindle.
Referring to the Drawings,
Figure 1 represents a side elevation of a window sash pulley and its casing,
embodying a feature of the Invention; Figure 2 is a plan or top view of the same;
Figure 3 is a vertical longitudinal section.
Figure 4 is a section of the pulley wheel.
Figure 5 is a modification of the Invention.
And Figure G is a view of one of the sides of the casing, and also a view of the
face plate of the same shewing another form of fastening.
A is the face plate, to be made of brass or other metal; B is the casing, and
consists of two plates or discs of wrought sheet metal, the upper edges conforming
to the contour of the pulley. The ends of the casing are bent, so as to meet,
and the strip cut from the centre of the plate is turned up at each side and
bent over the upper edges, as shewn at G, in Figures 1 and 3, whereby the
sides of the casing are secured together and to the face plate without any other
fastening. A rivet may be used in some cases, as shown at g, Figure 3, if
found advisable. The side pieces may be further connected to the face plate A
by means of tangs or projections formed on the lower edges of the side pieces
of the casing and passing through holes in the face plate, as shewn at a in
dotted lines in Figures 1 and 3. These projections are rivetted in the face
plate. The ends of the casing may be secured together by a bolt, as shewn at F,
Figure 3, and the piece cut from the face plate be bent over the same, as shewn
in Figure 3.
Another method of securing the face plate to the side pieces of the casing is shewn
in Figure 5. The piece h is cut from the centre of the face plate and turned up
perpendicularly, as shewn; a cross-shaped piece i is then rivetted to this upright
strip h, and the two ends of the cross bar i pass into holes in the side pieces when
they are rivetted. The lower end of the cross piece rests upon the face plate, and
the upper end extends to the top edge of the casing at that point.
In Figure 6 the lower edges of each of the side casings are bent over to form the
face plate, the opening O in the latter extending the whole length or nearly so of
the face plate. A piece of sheet metal of the form shewn in Figure 7 has its square
end Zinserted inside the ends of the casing, and the pointed end is then bent over
on the outside, by which means the two side pieces of the casing are held together,
and the pointed ends serve to hold the casing in the window frame where they are
inserted.

page_text: The pulley wheel is composed of two sheet metal plates or discs struck up in a
die and jointed together by means of rivets d, as shewn in Figures 3 and 4.
As thus constructed the edges of the holes through which the spindle passes aro
liable to cut or wear the latter, and in order to obviate this difficulty there is inter-
posed between the two discs at the central portion a block or filling D, consisting of
wood, hard rubber, metal, glass, composition, vegetable or horn, or other suitablo
material, by which means a solid bearing for the pulley upon the spindle is
attained.
Having now described and particularly set forth the nature of the said Invention,
and the manner of carrying the same into effect, I would have it understood that
what I claim is,―
First. The method of forming from portions of the face plate the means of
attaching the same to the side plates of a sash pulley, substantially as described,
and set forth in the Specification and Drawings.
Second. The, form of pulley inado by filling in between the two struck up metal
discs packing to give a bearing for the pulley spindle, substantially as described.
In witness whereof, I, the said William Morgan-Brown, have hereunto set my
hand and scal, this Third day of October, in the year of our Lord Ono
thousand eight hundred and seventy-eight.
WILLIAM MORGAN-BROWN. (L.S.)