US1017114A - Sash-pulley. - Google Patents

Description

P. P. SMITH.

SASH PULLEY. APPLICATION FILED AUG. 28, 1911.

1,0174 14. Patented Feb. 13, 1912.

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FRANK F. SMITH, OF NEWARK, NEW JERSEY.

SASH-PULLEY.

Application filed August 28, 1911.

To all whom it may concern:

Be it known that I, FRANK F. SMITH, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Sash-Pulleys, of which the following is a specification.

My present invention relates to an improved construction of sash-pulley intended particularly for use in connection with fireproof windows, and especially adapted to be made of malleable iron castings. Its advantages of simplicity and of inherent strength, both of construction and of the materials of which it is adapted to be made, will be appreciated by those skilled in the art from an understanding of the following description in connection with the drawings.

In the drawings showing one of the specific forms, which my improved construction may take, Figure 1 is a side elevation of my sash-pulley shown complete in as sembled position on the corner of a sheetmetal window frame, said frame being shown in vertical section. Fig. 2 is a side elevation of the housing-part of the construction shown separate from the other parts. Fig. 3 is an underneath plan view of said housing-part, that is a view looking at said part from below in Fig. 2. Fig. & is a side elevation of the fork-part of the construction shown separate from the other parts. Fig. 5 is a rear elevation of the fork-part, that is a View looking at said part from the right in Fig. 4:. Fig. 6 is a side elevation of the pulley detached, and Fig. 7 is a plan view of its axle-pin.

I will now describe the device of the drawings, reserving it to the claims to point out the novel features and to define the scope of the invention, it being understood that the claims will be given the due range of equivalents to which they may be entitled in view of the art.

My improved sash-pulley construction consists of two main parts, namely a hous ing-part 1 and a fork-part 2, together with a grooved sash-pulley 3 having an axlehole 3 through it, and an axle-pin 4 adapted to be received through the hole 3" with bearing fit so that the pulley rotates on the pin 4 as an axle.

The housing-part 1 consists of a hollow hood or housing 1 which rotatably sup ports within it the sash-pulley 3 as will be Specification of Letters Patent.

Patented Feb. 1 3, 1912.

Serial No. 646,541.

iereinafter described and as is shown in Fig. 1. The sash chain or cord runs over the grooved periphery of this pulley and between it and the surrounding interior of the housing to connect on the one side with the sash and on the other with the sash weight in the same manner which is common and well understood in the art, and is, therefore, not illustrated.

The housing-part 1 in addition comprises a strap 1 extending rearwardly from the bottom of the housing 1 and is provided with a bolt-hole or holes 1 which may be single or plural, round or elongated as shown. Further this strap is provided with bolts 1 or other securing means adapted to these holes for securing the strap 1 to the upper side of the corner of the window frame. In the drawings the undersides of the holes 1 are countersunk to correspond with the heads of the bolts so that on taking up on the nuts of the bolts the sheet-metal 5 of the window frame is drawn into the countersunk portions of the bolt-holes in the strap to permit the heads of the bolts to become themselves countersunk so that the tops of the heads are substantially flush with the exposed face of the sheet-metal However, this countersinking is a mere detail of construction, for which no invention is claimed. Finally, the sides of the housing 1 are provided with a pair of grooves 1 which in direction extend transversely to the length of the strap 1 these grooves consisting of the spaces between the ridges 1 formed on the sides of the housing, and extending through the bottoms of the grooves 1 are holes adapted to receive through them the axle-pin 1 to support said pin and its pulley in operative position in the housing as shown in Fig. 1.

The housing-part 1 consisting, as described, of the hollow hood 1, strap 1 and the grooves 1 formed between the ridges 1 is adapted to be made of a single malleable iron casting.

The fork-part 2 of the construction consists of a strap 2 having countersunk holes 2 provided with bolts or other securing means 2 in substantial correspondence with the similar devices already described in connection with the strap 1 of the housingpart. The fork-part takes its name from the fork 2 on the upper end of the strap 2*. The planes of the terms of this fork are transverse to the plane of the strap 2*.

Further they are adapted to straddle the sides of the housing 1* and in doing so are received slidably into the grooves i The arms 2 preferably taper slightly toward their free ends as do also the sides of the grooves I with the result that the parts when engaged tend to fit together more snugly and tightly than they would do if the parts engaged on parallel lines. arms 2 have holes 2 through them which aline with the holes l in the sides of the housing when the parts are assembled together as in Fig. 1. The result is that when the aXle-pin 4; is inserted through the holes 2 and 1 of the fork and housing-parts as Well as through the hole 3 in the pulley and is upset at its ends, it permanently unites all of the parts of the sash-pulley construction at the same time that it forms the axle on which the pulley 3 rotates.

It will be noted from Figs. 1 and f that the inner face of the strap of the fork-part 2 is preferably provided with a transverse recess 2*, which is adapted to receive into it the joint 8 formed by the interlocked edges connecting the pieces of sheetmetal at the corner of the window-frame. It will be seen that the fork-part is also adapted to be a malleable iron casting.

What I claim is:

1. The improved sash-pulley construct-ion consisting of a housing-part, a fork-part, a sash-pulley and an axle-pin, the housingpart consisting of a housing adapted to operatively contain the sash-pulley and having a strap extending rearwardly from its base, the sides of the housing having grooves which extend transversely to the length of the strap, and said fork-part consisting of a strap having a fork at one end whose arms slidably enter the grooves in the sides of the housing, the arms of the fork and the sides of the housing having holes through them which are in alinement when the housing and fork-parts are assembled together to receive through them the aXle-pin which likewise operatively supports the pulley in the housing, and securing means on said straps for securing them and the entire construction to the corner of the window-frame.

2. The improved sash-pulleyconstruction consisting of a housing-part, a fork-part, a

The

sash-pulley having an axle-hole therethrough, and an axle-pin, the housing-part consisting of a hollow housing adapted to contain the sash-pulley and having a strap extending rearwardly from the bottom of the housing, the sides of the housing having grooves extending transversely relatively to the strap and the sides of said grooves converging toward the top of the housing, and said fork-part consisting of a strap having a fork at one end the planes of whose arms are transverse to the plane of the strap, the sides of said arms converging toward their free ends to slidably enter endwise the grooves in the sides of the housing, the arms of the fork and the sides of the housing having holes through them, which are in alinement when the housing and fork-parts are assembled as described to receive through them the axle-pin which likewise passes through the axle-hole in the pulley to operatively support it in the housing, the aforesaid straps being provided with securing means for securing them and the entire construction to the corner of the windowframe.

8. The improved sash-pulley construction consisting of a housing-part, a fork-part, a sash-pulley and an axle-pin, the housingpart consisting of a housing adapted to 0p eratively contain the saslrpulley and having a strap extending rearwardly from its base, and said fork-part consisting of a strap having a fork at one end whose arms straddle the sides of the housing when the housing and fork-parts are assembled together, the arms of the fork and the sides of the housing having holes through them which are in alinement when the parts are assembled together, said holes receiving through them the axle-pin which likewise operatively supports the pulley in the housing, and securing means for securing the straps and the entire construction to the corner of the window-frame.

In testimony whereof I afiiX my signature in presence oftwo witnesses.

FRANK F. SMITH. Witnesses:

E. W. SCHERR, Jr., ALAN C. MCDONNELL.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Pa' nls Washington, D. C.

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