Improvements in Sash Pulleys.
Year: 1886

page_text: Date of Application, 22nd Nov., 1886.
Specification Accepted, 25th Feb., 1887.
Improvements in Sash Pulleys.
I, WARREN TODD KELLOGG, of No. 450 Second Avenue in the Village of
Lansingburgh, County of Rensselaer, State of New York, Manufacturer, do hereby
declare the nature of my invention for "IMPROVEMENTS IN SASH PULLEYS" to be as
follows:-
My invention relates to sash pulleys, and more particularly to that class of them
which are made with a socket having ribbed exterior faces that will adapt it to be
driven into an opening produced in the wood by a series of auger-holes and my
improvement consists (as will be more fully described hereinafter in connection with
its illustration and defined in the claim) in the combination with the exteriorly convex
ribs formed on the socket exterior, of wedge-form blades one of the latter being
arranged upon each of said ribs, and all of them being adapted to enter the interior
face of the opening made in the wood when the socket is driven into the latter.
When a series of auger holes having their centres in the same line, and slightly
overlapping one another are made by the same implement to produce an opening in
the wood to receive the socket, the holes are not always of the same size, as augers
nominally of the same size, vary in the size of the holes hored by them, and the socket
is liable to become loose in the opening from continued use; to remedy this difficulty,
I arrange wedge-form blades upon the exterior convex surface of the socket ribs,
which penetrate the wood when the socket is driven in and thus prevent the loosening.
Accompanying this specification to form a part of it there is a sheet of drawings
containing four figures illustrating my invention, with the same designation of parts
by letter reference used in all of them.
Of these illustrations Figure 1 shows a perspective of my improved sash pulley and
socket. Figure 2 shows a top view of the same. Figure 3 shows the socket and
pulley inserted in the wood, and Figure 4 illustrates a cross section taken on the
line, of figure 3.
The several parts of the mechanism thus illustrated are designated by letter
reference, and the function of the parts is described as follows: The letter S',
designates the pulley socket, P the pulley proper, S2, its pintle shaft, and B, ribs
made with an exterior convex surface on the socket sides and ends. The letters
designate blades having a wedge-form in their transverse measurement, each one of
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page_text: which, blades is arranged on the outer face of one of the ribs B. These blades as they
are extended downwardly on the outer face of the ribs, taper in size, until they reach
a terminal point. The letter W indicates the wood having an opening O¹, made
therein by a series of overlapping auger holes, to receive the socket S¹, which is
driven therein. When the socket is thus driven into the wood, the ribs B enter the
concavities C, made in the side of the opening, while the blades ¹, are forced into the
wood, so as to hold the socket firmly in place.
The letter O, designates holes made in the ends of the socket, through which nails
are driven into the wood. The pulley thus illustrated is arranged within the socket S¹,
upon the pintle or shaft S3, with the latter passed through the socket sides and headed
thereat. As thus made the socket when driven into the opening made in the wood
will be firmly held in place by the blades 6¹, at the sides and ends.
Considered alone and without the wedge-form blades, the ribs arranged on the
socket sides at right angles to the socket top are not new, and my invention relates to
the improvement of a sash pulley socket by means of the wedge-form blades placed
exteriorly upon the ribs, with said blades arranged at right angles to the socket
top face.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim is:
A sash pulley with a socket having ribs upon its sides and ends, which ribs
exteriorly have the form of intersecting segments of circles, and wedge-form blades
arranged exteriorly upon each of said ribs adapted to enter the wood of the socket
opening when the socket is driven into the latter, substantially as and for the purposes
set forth.
WARREN TODD KELLOGG,
Haseltine, Lake & Co.,
Patent Agents,
Southampton Buildings, W.C.,
Agents for the Applicant.