US1386774A - Sash-pulley - Google Patents

Description

l. H. FOUTE.

SASH PU'LLEY.

APPLICATION FILED FEB. 2| 392|.

i' INVENToR.

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sr-as ver seien,

JAMES H. FOOTE, OF CINCINNATI, OEIO.

SASH-PULLEY.

Specification of Letters Patent.

Patented Ang. 9, 1192i.,

Application led February 21, 1921. Serial No. 446,836.

' ment of the structural members composing same for securing such pulleys in their mounting frames; the object of thepresent invention being, to provide an effective and inexpensive housing that will avoid the use of screws or special devices for securingthe sash pulley in its mounting frame; another vobject vbeing to provide a sash pulley housing that will not be curtailed in efficiency by a considerable range in relative thickness of the material used for making the frame member in which the opening for the sash pulley to seat in is formed; a further object being to provide a sash pulley that may be installed in a window frame after it is completed as easily and expeditiously as this can be done while the frame is in course of construction.

I attain these and other objects by mecha'- nism such as illustrated Vin the accompanying drawing, in'which;-

Figure 1 is a view in side elevation of a pulley embodying my invention, seated and secured in the opening formed for it to lit in in a window frame member, which latter is shown in Jfragmentary vertical section; Fig. 2 is a View similar to Fig. 1 but showing the pulley entering the frame opening with the housing members relatively positioned to facilitate inserting the pulley and bringing it to seated position in said opening; Fig. 3 is a view in rear elevation of the supporting member shown in F ig. l, detached from the other parts of the device; Fig. 4: is a view in front elevation of the sheave bearing hood member of the housing shown in Fig'. l, detached from the lsupporting member and in the position the sheave and its journal would occupy indicated in dotted outline; Fig. 5 is a View similar to Fig. l, but showing a pulley embodying my invention in a modified form.

lAlthough I have shown my improved housing as formed of sheet metal, it will be understood that in accordance with well known practice, the housing members, or either of them, may be formed by other means than sheet metal, and while for convenience in illustration I have utilized a fragment of a wooden or kalamein window frame, it will be-understood that my device is intended for use in all frames in which pulleys are a requirement, irrespective of their character, the use to which they may be put or the nature of the material used in their construction.

Referring to Figs. l to 4l inclusive, of the drawing, A represents the-'supporting member of a sash pulley housing embodying my invention, comprising a front plate a which may be extended to engage a front face of a window frame member W, and is provided with a central aperture I for the passage of a sheave C, and a pair of side walls a which Aextend rearwardly from plate a and are turned in at their ends .to meet,

yor are connected by a suitable member, to

form an upperA and lower cross wall a2 to sustain the thrust of member A against the ends of an opening O which is formed in the window frame member W for member A to seat in, and each of cross walls a2 may be provided with an extension c3 to engage the front face of member W, adjacent the ends of opening 0,l to limit the movement of member A in one direction into said opening O.

In each side wall a a vertically inclined slot cl, which may be cut back somewhat at its upper end to facilitate the operation of installing the device in the window frame opening O, is formed to provide a confining runway for the bottom e of a rearwardly facing hook or channel o4 whichV is located at the front of an extension o of each side wall b of a second housing member B to which the sheave C is journaled.

And in a plane approximating that ofl ylO 'upon' slots d, and to slidably l member A.

the lower end of slot al in each side wallA a', a tongue of the metal of side wall a is cut loose and bent inwardly tol form a Vflange to engage a lower edge b3 of each side wall extension Z9 of housing member B, to limit the downward movement of member Bv and help take the thrust of member B upon its coming to supported position in member A.

Housing member B comprises a pair'oi" substantially parallel side walls Z) having upper and lower forwardly Vfacing edges O5 adapted to engage the rear face of the window frame member W and to embed therein more or less asmay be required/bythe thickness of the particular frame member engaged, and which side walls `Z)fare'preferably connected andy -spaced at ,their upper ends by a cross member 226 to serve as a hood for the sheave, and are provided with median front extensions la from each of which, adjacent its upper forward end, a bit of the metal is loosened' and forced out yslightly to form a catch ordetentv la', adapted to enter slot d of memberA and engage its downwardly directed upper edge Z2 and reV leasably lock member B against. upwardv movement when it comes to supported position in. member A, and from each ot'which extensions 79 a tongue ofthemetalis loosened and bent'out and over to form, with the side oi' said extension for its inner wall, a .rearwardly facing hoolr or channel b4 having a bottom wall e an'd an vouterwall e.V

Hooks b4 are adapted to iit over portionsV of side walls a of member A. bordering engage 'with their bottom walls e thek forwardly 'lacing edges d of ythese portions.

Edges al also form the rear boundary edges of slots d, within which lthe bottom vwalls c of hooks b4 are movably confined,V

and against the lower edge of which slots, thel lower ends of bottom walls e are adapted to seat and help sustain the thrust .of member B when it comes to supportedposition in ln assemblingthe parts `for a complete pulley, sheave C may be first journaled to member B, and member B may then be movably connected to member Alby passing hooks 'b4 of side wall extensions Zi oiimeni-V ber B, in between side walls e' o'l member* A until the rearwardly facing edges oi the outer wallsc of these hooks pass the torwardlyl facing edges lf of the side walls a.

portions of member A, entering theseV portions into hooks 6 4 by pressing in edges al* slightly-out of-alinement with the opposite edges olf slots d, and withdrawing member B from member A'until edges d come to a bearing upon the bottom walls e of hooks b4, whereupon, edges d'1 kmaybe returned into' alinement with4 they opposite edgeo slots "d, movably confining bottoms e lof thehooks,

in slots Z oi member A and in sliding engagement with edges al 'of the portions o t walls d engaged by the hooks b4 thus prov viding easily manipulated interlocking means for establishing and maintaining a' movable connection between the housing members and enabling them to undergo change in relative position, p I v Toin'stall the pulley in the window frame,

thejhousing members are lirst moved into substantially the relative position shown in K llig. 2fthe device is then inserted into the trame opening, vupper end iirst, and the sup'-` Vporting member-1 Aofthe housing brought to seated position, member B, to which the slieave is journaled, is thenpushed back until its lower irontedges b5 clear-the lower inner Ledge of the frame openingO, and' allowedt'o:dropinto 'supported position in A, during 4which move-V supporting member mentits upper andlower engaging'faces Zi move forward into `clamping engagement with the 'rear'.tace; oiiftliek Jframe' member clamping supporting member Arto :the ,front face of the frame member and securing theVw v,pulley in seated position" in frame YopeirV ingc fr e i i 'llien it comes to this position thehousing members are releasably loclredragainst -relative `movement catches cwhich then are moved out into'slots. 'and engage the vdownwardly facing upper end edge d2 of'these slots by ieason-oi-.the return tonormal pon sition'o't extensions b walls a oi' member A, vwhich are sprung' apartA slightly lb yrcatehesf 7e as member .B

ci? member B and passes downwardly into supported' position Y in member A.

'lVhen the thicknessI of trame'inenibenlili7 i is such-that the sheave bearing` member B will4 not'drop' into supported an d locked posi'- tion'byv-its own weight," it" will be carried down into this position by the sash' cord its passage ovei thesheave with 'the weight attachedat one 'ot itsend'sandthe'sash at the other, or rit may be readilv. forced down by the useoif an ordinary tool, as for inot aperture Las a'fulcrum. n

By inserting the point of a screw-driver blade or other suitable tool between wal-l eX- tensions bf'ot member B andwalls d of memberkAi, catches 7c may' be easily released from locked yengageineiit and the pulley removed by 'aieversal oi?` the operation de- InV tion l illustrated,

iio4

1 stance a screw driver, which, may bev employed as a lever utilizing platea, at one end somewhat, at their lower ends, is provided with a base o7 to seat in the trame opening 0 and sustain the thrust of this member against the end of said opening.

Aside from these differences in form and pu pose of its housing members, the device in this modiiied form, in the arrangement of its parts and manner of use as well as in the operation required for installing it, is substantially similar' to the form ot pulley already described. Other modifications of the invention here in disclosed may be made and need not be illustrated, as modifications within the spirit and scope of the invention as pointed out in the claims, will be obvious to those skilled in the art.

Having thus described my invention, what I claim as new is l. A sash pulley comprising a sheave, a housing member adapted to tit into an opening in a window trame member, and provided with means to engage the front tace of the trame member to limit the movement of said housing member in one direction into said opening, and with means to sustain the thrust of said housing member against the end of said opening, and a hood member to which said sheave is journaled, carried by and movable relative to said housing mem ber, to releasably engage a rear face of the trame member and lock said housing member to the frame member irrespective of a considerable range in thickness of said trame member.

2. A sash pulley comprising a sheave, a housing member adapted to fit into an opening in a window trame member, and provided with means to engage the front face of the trame member to limit the movement ot said housing member in one direction into said opening, and with means to sustain the thrust of said housingmember against the end of said opening', a hood member to which the sheave is journaled, carried by and movable relative to said housing membei', to releasably engage the rear tace of the 'frame member and lock said housing member to the frame member irrespective of a considerable range in thickness of said trame member, and means to releasably maintain said hood member in the relative position selected tor locking said housing member to the trame member, and releasably secure the pulley in the opening in'said frame member.

3. A sash pulley adapted to seat in an opening in a window frame member, comprising a sheave bearing housing having a supporting element adapted to tit into the opening in the trame member and provided with means to enga-ge the front face of the trame member to limit the movement of said element in one direction into said opening, and with means to sustain the thrust of said element againstthe end ot said opening, a hood element, to which the sheave is journaled, adapted to fit into the opening in the frame member and provided with means to sustain the thrust of said hood element against the end ot said opening, connected to and held in relatively movable engagement by said supporting element and adapted to releasably engage the rear face of the frame member and loclr the supporting element to the frame member irrespective of a considerable range in thickness ot said trame member, and means to maintain said supporting and hood elements in locked relation with said trame member.

4:. A sash pulley adapted to seat in an opening in a window trame member comprising, a sheave, a housing for the sheave, having a front element, adapted to lit into the opening' in said trame member, provided with a centrally apertured front plate, side walls, connected at their ends to form an upper and a lower wall to sustain the thrust ot said front element against the ends of said opening, and provided with means to engage a iront face ot the frame member and limit the movement ot said element in one direction into said opening, a rear element adapted to serve as a hood for the sheave, having suitably connected side walls, between and to which said sheave is journaled, provided with means to engage a rear face ot the trame member, means to connect and maintain the rear element in relatively movable engagement with the i'ront element, means to take and to sustain the thrust oi the rear element against the front element and means to limit the movement of said rear element relative to said front element, whereby the housing elements may be relatively positioned to 'facilitate seating' the pulley in the opening in the' window trame member and securing it in said opening' by said housing elements.

5. A sash pulley adapted to seat in an openino' in a window frame member comprising, a sheave, a housing :tor the sheave, having a front element, adapted to lit into the opening in said trame member, provided with a centrally apertured front plate, side walls., connected at their ends to form an upper and a lower wall to sustain the thrust ot said front element against the ends oi said opening, and with means to engage a iront tace ot the trame member and limit the movement of said trent element in one direction into said opening, a rear element, adapted to serve as a hood for the sheave, having side walls, between and to which said sheave is journaled, provided with means to engage a rear tace ot the frame member, means on the side walls of said housing elements to connect and maintain the rear element in relatively movable engagement with the front element, means on said side Walls to take and to sustain the thrust of the rear element against the front element and means on said .Walls to limit the movement of the Y `*rear element relative to the front element,

member aud moved into looking engagement with the front and rear faces of said frame Vmemloel' to look `the pulley in said opening.

In testimonyiwhereof I have hereunto subscribed myname this 14th day of February, 1921.- Y JAMES H. FOOTE.

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