IMPROVEMENTS IN CASES FOR SASH PULLEYS, SLIDING DOOR ROLLERS, AND OTHER SIMILAR USES
Year: 1876

page_text: LETTERS PATENT to William Clark, of 53, Chancery Lane, in the County of
Middlesex, Patent Agent, for the Invention of "IMPROVEMENTS IN CASES FOR
SASH PULLEYS, SLIDING DOOR ROLLERS, AND OTHER SIMILAR USES." A com-
munication from abroad by William Toan Doremus, of the City, County, and
State of New York, United States of America.
Sealed the 16th September 1876, and dated the 1st August 1876.
COMPLETE SPECIFICATION filed by the said William Clark at the Office of
the Commissioners of Patents on the 1st August 1876.
WILLIAM CLARK, of 53, Chancery Lane, in the County of Middlesex, Patent
Agent. "IMPROVEMENTS IN CASES FOR SASH PULLEYS, SLIDING DOOR ROLLERS,
AND OTHER SIMILAR USES." A communication from abroad by William Toan
Dorenius, of the City, County, and State of New York, United States of America.
The object of this Invention is to furnish an improved case for the pulleys of
window sash cords, for the rollers of sliding doors, and for other similar uses, which
shall be so constructed that it may be inserted in an auger hole bored in the
window frame or door, without its being necessary to form a mortise to receive the
said case, and which shall be simple in construction, inexpensive in manufacture,
strong and durable.
The Invention consists in the cylindrical case, cast with flattened sides, a screw
thread upon its outer surface with hubs upon its inner surface, with holes to receive
the journals and rivets, and whether made in one or two parts, as herein-after fully
described.
In the accompanying Drawing Figure 1 is a side view of this improved device.
Figure 2 is a longitudinal section of the same taken through the line x, x, Figure 1.
Figure 3 is a longitudinal section of the same taken through the line y, y, Figure 2.
Figure 4 is a longitudinal section of the same showing a modification. Figure 5 is
a cross section taken through the line, z, Figure 4, the pulleys being removed.
Figure 6 is an end view of a modified form of the same, the pulleys being removed.
Figure 7 is a longitudinal section of another modified form of the same.
letters of reference indicate corresponding parts.
Similar
A is the case, which is cast in the general form of a hollow cylinder with flattend
sides, and with a screw thread upon its outer surface,

page_text: The case A. is cast with flat-faced projections or hubs a, upon the inner surface
of its sides for the ends of the pulleys B to rest against, and to give a thicker
bearing or support for the journals or pivots of said pulleys.
The pulleys B may have their journals C cast in one piece with them, as shown
in Figures 1, 2, and 3, in which case the case A must be cast in two parts, as shown
in Figures 3 and 5. Or the pivots C may be separate and passed through the
case A and pulleys B, and have their heads D, headed down as shown in Figure 4.
In this case the case A may be cast in one piece, as shown in Figure 6, or in two
pieces, as shown in Figure 5. When the journals C are cast solid with the pulleys B,
the parts of the case A should be secured to each other by a rivet D', as shown in
Figures 1, 2, and 3.
When the case A is cast in two parts the said parts are kept from moving upon
each other by lips formed upon their adjacent edges, so that the said edges may
interlock with each other.
When the device is used for sash cords the end parts of the case may be notched
upon the under side to prevent the cord from rubbing upon the edges of said case.
For this use the case A may be provided with one or two pulleys B, but I prefer to
uso two, as it enables the pulleys and consequently the case to be made smaller than
is necessary when only one pulley is used.
When the device is used as a roller for sliding doors, only one pulley is used,
which is pivoted so near the end of the case A, that its face may project beyond said
end to bear upon the track. In this case the case A may be cast in one or two
parts, as may be desired. I prefer to cast the case A in two parts as it enables the
castings to be made smoother and easier.
Having described the nature of the said Invention and the manner of performing
the same I declare that, what I claim as new and desire to secure by Letters
Patent is―
The cylindrical casc A cast with flattened sides, a screw thread upon its outer
surface with hubs a, upon its inner surface, with holes to receive the journals and
rivets, and whether made in one or two parts, substantially as herein shown and
described.
In witness whereof, I, the said William Clark, have hereunto set my hand and
seal, this First day of August in the year of our Lord One thousand eight
lundwad and seventy-six
WM. CLARK. (L.S.)
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