US1612232A - Sash-adjusting mechanism - Google Patents

Description

Dc. 28,1926. u 1,612,232

G. E. STRANDT SASH ADJUSTING MEGHANISM Y ATTORNEYS:

1,612,232 G. E. STRAND-r SASH ADJUSTING MEGHANI SM Dec. 28 1926.

Filed Deo. 1o, 1924 2 Sheets-sheet 2 ATTORNEYS,

Patented leco 28, 192336..

HEB STATFS GUSTAV ERNST STRANDT, OF MLVAUKEE, XTISCNSIN.

SASH-ADJUSTENG MECHANISM.

Application filed Becember This invention relates to improvements in sash adjusting mechanism.

lt is the primary object of this invention to produce a novel and simple sash adjusting mechanism so organized that either sash of a double hung window may be adjusted upwardly or downwardly by a single manually operable device such as a crank or the like, the mechanism being so organized as to loclr the sash positivelyv against movement when the crank is not operative for adjusting purposes.

The employment of a single hand lever for any desired manipulation or for the loclring of the sash results in the production of a neater and more compact device than has heretofore been employed for these purposes to my knowledge. It is an object of the present invention to produce a device for these purposes in which the operating parts can quite largely be concealed and merely the manually operable lever or crank will be visible.

is has already beenV stated, it is one of the objects of this invention to provide for locking the sash in any desired positions of adjustment. ln order to accomplish this result more effectively than would otherwise be the case, it is one of the purposes of the invention to conceal all of the sash actuating connections within the window frame, there being no cords or other sash supporting mechanism exposed at any time, whether the sash be open or closed.

Further objects of the invention are to provide a novel and simplified and very compact device for the purposes aforesaid; to eliminate sash weights, sash locks, sash lifts or handles and to economize inthe space required for window frames; and to prevent the possibility of accidental sash movement by using a single manually operable part for locking and for sash adjusting purposes, and by providing means ensuring that each sash will be kept locked until it is practically completely clutched to said part, and will be again locked before being fully released from said part.

ln the drawings:

Figure 1 is a front elevation of a double hung sash window provided with sash adjusting means embodying this invention, portions of the window frame being brolzen away to expose the actuating connections.

10, 1924. Serial. No. 754,923.

Figure 2 is a side elevation of the device shown in Figure 1.

Figure 3 is a detail tal-zen on line 3-3 of Figure 1. v Figure et is a section taken on line tof Figure 1 through the control mechanism of a sash actuating` device embodying this invention.

Figure 5 is a detail'view in section taken on the line indicated at 5 5 in Figure e.

Figure G is a detail view in transverse section through locl-:ing collar which normally holds the sash against movement.

Figure 7 is a detail view in plan of a modied spool construction for use in the sash adjuster shown in Figure 4. n 70 Figure 8 is a detail view in section on the line'indicated at 8 8 in Figure 'Z'.

Like parts are identified by the same reference characters throughout the several views.

10 represents a window frame in which upper sash 11 and lower sash 12 are vertically movable asin the ordinay double hung window. Y i

Adjacent the middle of the frame upon each side thereof are horizontally and vertically offset fittings 14 which may be identical in construction, and which may each include a pair of co-aXial pulleys 15 and a second pair of co-axial pulleys 16. rlhe side margins of the sash are preferably substantially tangential toy these pulleys, and the fittings 14 are so located that one of them will be approximately at the bottom of the upper sash and the other will be approximately at the top of the lower sash. ffl

At the bottom of the frame, upon each side thereof, is a bracket 17 from which four aligned pulleys 18 are supported, as indicated. It will be understood that with regard to each of the features above mentioned, the two sides of the window frame will be identical with the single side thereof which is shown in Figures 1 and 2. In fact, it is only desirable to duplicate the mechanism thus farv described upon the opposite side of the window fra-me for the purpose of balancing 'pressures acting upon the sash, whereby to prevent the sash from sticking.

Disposed centrally beneath the frame is a cont-rol mechanism designated in its entirety by reference character :20. This mechanism comprises an important part of the present invention and will hereinafter be more fully described. For the present it suliices to say that such mechanism includes a housing 21 from which a cranlr projects at the trent and trom which issue at each side .of the machine flexible sash actuating connections which, it'or he purpose ot illustrating typical connections in the present application, are represented to comprise metal tapes or ribbons 22, 23. 2l, and 25.

Each of these metallic ribbons or tapes passes about one ot the pulleys or guides 18 at the bottom ot the window -traine and thence passes upwardly toward the Vitting's 11i. The tapes are guided over the pulleys of such fittings in variousfways which will now be described. Tape 25 passes around the outside of one ot the pulleys 150i the lower iitting '1'4 and thence downwardly toward the bottom ot the bottom sash to which it is secured. rihe sash may conveniently be cut` away, as indicated at 2l', and a wedgeshaped block 2S may be screwed to the sash to hold the end ot the tape or ribbon thereto. Preferably, the sash is grooved throughout its entire length to receive the tape or ribbon 25, whereby to conceal and enclose the ribbon. the ribbon 25 is drawnvinto the housing 21 ot the control mechanism the result will be that the tape in passing over pulleys 18 and 15 will `eXer-t a lift upon the lower sash l2 tending to 'raise that sash.

rihe tape or ribbon 241: passes about the second -ol pulleys '18 and iitting 17 and thence passes through :trom the outside ot pulley 16 to the inside ot pulley 15 on the lower g'of the two iittings 14. It is thereupon secured to the upper end ot the lower sash 12 in a 'manner similar tothat already described with reterence to the lower end yof said sash. ".[t follows that tape 24 must be paid out to Vpermit the sash to rise under the pull oft tape 25. l/Vhen it is desired to lower the sash, however, such an operation may be accomplished by drawing ribbon 24 into housing 21 and paying out ribbon 25 art a corresponding rate.

In a similar manner the upper sash is actuated by ribbons 22 and '23. Ribbon 23 issues from the lower partot housing 21, passes about one 'ot the rollers or pulleys 18, and passes about pulley 15 to engagement with the lower portion of sash 11 .to which it is held by :one of the wedge-shaped 'blocls 28 screwed through the lribbon 'to the sash. Ribbon 22 issues from the upper part or" case 21., passes about the last ot rollers 18, and thence 'passes upwardly from the outside ot' roller 16 to the inside ot roller 15 in the uppermost of the two fittings 111-. rifhen'ce tape '22 vpasses to the top of sash 11 where it .is secured by one ot' the blocks 28. Obviously', the sash 1l will be caused to move by drawing one of ribbons 22 or 23 into case '21 and simultaneously paying out It will be obvious that whenV the other ott such ribbons at a corresponding rate. In discussing the several ribbons 22, 23, 2i, :and 25, it will ot course be underbe gli/ren to the ribbons or similar flexible connections. Suitable slots 29 in the upper sash receive and house the y"flexible Yconnections just as these connections are preterably housed in the lower sash.

Casing 21 includes tron-t and rear vplates 3' vand Si., respectively, and a substantially tubular wall which may conveniently be screwed to annular flanges 33 carried by the front `and rear pla-tes.

A shaft 35 is j ournaled in the trent and' r walls '30 .and 31 ot housing l21 and projects tro r the nousino` the front where it is provided with a l nd crank 36 rigidly connected thereto. Vthe hand crank and .t may be moved forwardly and rearwell as rotated.

' .and rear plates oit housing 2l ovided `with inner .annular ige 37 at the inside ot which is a bearing positioning sleeve 39, these sleeves vbeing secured to the :annular flange 37 by suitable screws el). The vcentral bore in bearing sleeve 3S may be fitted closely about .shaft 35 at the outer fend ot' each such sleeve, butv the inner end .of each sleeve oountenbored at 42 to a'iord lclearance 'tor sleeves i3 which are connected with shaft 35 and may be formed inte". ally with a clutch .device 15 n-i-ounted upon said shaft. The clutch device may `convenien'tly take the form oi a spider having :trom 'which the clutchl pins All' project :tori` irdly and clutch pins 48 proj ect rearwardly. ri hey or a cross pin i9 may be utilized to secure the entire clutch device to the shai't, the arrangement being such that the .clutch device will rotate and move 4axially with the shaft by reason ot such `connection.

Each oi the bearing members 38 is slotted in the manner indicated at to receive studs 51 e formed integrally with the lool; clutch collar A comi' g 523 sea-t 'l behind each such collar and confined b en the colla-r and the end otf 'lia-nge 3? serves to press each such col .toward the center off the device. The collar provided at with clutch teeth which are thereby forced normally into engagement with corresponding teeth on the spools .56.

T.ich bearing sleeve is provided with a radial lrad or tiarfre .57 at .its ontal end. -taljniols Pe jou. icd upon the sleeves 38 and are confined against axial .movement by and at vthe outside of which 'is a` lia) Contact with flanges 57 on the inside and the ends of positioning sleeves 39 on their outside portions. Each spool includes an inner end flange 60, an intermediate flange 6l and an outer end flange 62. Between these flanges the several tapes or ribbons heretofore discussed are wound and unwound during the rotation of spools 56. rlhe normal engagement of teeth 54E and will normally prevent the operation of either spool, due to the fact that. the collars 52 are secured against rotation by the engagement ot' their pin portions 5l in slots 50 of the relatively stationary bearing sleeve members 38. Thus, in the normal position of the part-s, it will be impossible for either of the window sash to move either upwardly or downwardly.

If desired, the depth of the housing 2l may be shortened by a slight modification in the construction of the spools or drums 56 upon which the tapes are wound.

In the construction already described the tapes are wound side by side within a given spool, the modification contemplates the winding` of each pair of tapes simultaneously upon a given spool so that the width of the tapes may be increased to some extent and still the combined length of the spools may be materially reduced. Figures Z and 8 show how this may be done. The modilied spool 56 has flanges 60, 6l, and 62 correspending to those already described. The separation of these flanges has been reduced, however, and the tapes 22 and 23 have been so increased in width that each of the tapes 22 substantially fills the space between 61 and 62 and each of the tapes 23 substantially fills the space between 60 and 6l. Figure 8 shows bow the tape 23, which is led to the bottom of the spool from the left hand side thereof, is secured thereto at 63 while the tape 23 which arrives from the right of the spool and is led to the top thereof is secured to the spool at 64. The coils of the two tapes are alternated by simultaneous winding upon the spool as is clearly indicated.

Each of the spools 56 is provided at 65 with recesses or openings to receive pins i7 or d8 of the manually operable clutch member 45. .lt is obviously necessary for the en gagement of the pins carried by such clutch member with either of spools 56 that the clutch member and the shaft upon which it is mounted must move axially to effect the engagement. The shaft and clutch men ber are illustrated in their central or neutral position.

lhen it is desired either to raise or lower either of the sash ll or l2 of the window, the operator will grasp the grip portion G6 of the hand lever or crank 36 and will first push the hand lever axially to the clutch element 46 with one of the spools According as the rearmost or the forward spool 56 is engaged, the upper or lower sash will be actuated when the crank 36 is ro tated. ln order, however, to permit the rotation of spools 56 it is necessary to disengage the spring-pressed lock clutch collar 52. The sleeves a3 carried by clutch member effect such disengagement through contact with pins 51, thereby, as the clutch member Ll5 is forced forwardly or rearwardly, the forward or rearward collar 52 is forced in a like direction against the pressure of its respective spring 53. Thus, the movement of the clutch is opposed by one of the springs 53 and, when the operator releases handle 36 the compression of spring 53 will preferably be adequate to restore the parts to their neutral position. It is artioularly to be noted that the length of slots limits the extent to which the springs can force clutch member 45, and thereby prevents any possibility that such member might be pressed past the desired neutral point.

The length of pins 48 is preferably such with regard to the distance between the neutral clutch member l5 and the spools 56 upon either hand, and the length of the lock releasing sleeves LL3 is such that the pins Il? or 48 will engage apertures 65 before the teeth 54- locling the collar 52 are released. This ensures that the sash will at all times be under the full control of the operator or of the automatic locking mechanism above described.

lt will be obvious from the foregoing that when shaft 35 has been pushed to its limit of movement in either axial direction the locking mechanism which normally secures one of the spools 56 against rotation will be released from such spools and, prior to such release, the clutch member l5 will be engaged withthat same spool. The operator may now rotate crank 36 for the purpose of rotating` the spool 56 with which the clutch member l5 is engaged, and thereupon one of the flexible connectors attached to a given sash of the window will be paid out and another of such connectors will be wound up onto its spool. This last mentioned operation results from the fact that with reference to each of the spools 56 one ribbon leads to its top and another to its bottom portion from each side of the window frame. Thus, for a` given direction-of rotation of the spool the ribbon leading to the top thereof may be wound upon the spool while the ribbon leading from the bottom thereof will be unwound therefrom. To each of spools 56 are led all of the connectors which are attached to a given sash.

` From the foregoing it will appear that the device herein disclosed is adapted to retain each of two window sash normally' locked, 'the actuating handle for the sash being normally disengaged from the sash and freely rotatable in either direction without affecting the position of either sash. Furtl'iermore, the handle may readily be adjusted axially for engagement with a spool connected voith a given sash which it is desired to operate. The act of connecting the handle with such spool automatically unlocks the spool for rotation, and the unlocking operation is performed subsequent to the engagement of the handle with the spool which itis desired to operate. lf the spool is now rotated in one direction the sash will. be raised, and if the spool is operated in a reverse direction the sash will be lowered. Then the operator releases the handle, all the parts are restored to their normal neutral position and the spool is locked against further rotation before the handle is fully released therefrom.

l claim:

l. In a device of the character described, the combination with a member supported for rotation, of a handle rotatably and aXi ally movable and provided with a clutch adapted to engage and disengage said member upon the axial movement of said handle, a locking device including a clutch restrained against rotation and axially adjustable to and fromengagement with said member, and actuating means between said handle and said locking device for disengaging the clutch of said loclring device from sai-d member upon the engagement the clutch of said handle therewith..

2. ln a device ofthe character described, the combination with a member supported for rotation, of a handle rotatably and axially movable and provided with a clutch adapted' to engage and disengage said member upon the axial movement of said handle, a locking device including a clutch restrained against rotation and axially adjustable to and from engagement with said meniber, actuating meansA between said handle and said locking device for disengaging the clutch of said locking device from said member upon the engagement of the clutch of said handle therewith, and a spring pressing the clutch of said locking device toward a position for engagement with said member, whereby normally to maintain said member locked against rotation.

ln a device of the character described, the combination with a member supported forv rotation, of a handle rotatably and axially movable and provided with a clutch adapted to engage and disengage said member upon the axial movement of said handle, a locking device including a clutch restrained against rotation and axially adjustable to and from engagement with said member, actuating means between said handle and said locking device for disengaging the clutch of said locking device from said member upon the. engagement of the clutch of said handle release therewith, and a spring pressing the clutch of said locking device toward a position fo-r engagement with said member, whereby normally to maintain saidv member locked against rotation, said actuating connections being adapted to transmit the pressure of said spring to said handle, whereby to maintain said handle normally disengaged from said member.

ln a device of the character described, the combination with a plurality of rotaryl members provided with connections adapted: to transmit movement of a handle support-ed' for axial and rotative movement and provided with a clutch intermediate said members and selectively engageable with either thereof for the rotation of the member so engaged, locking devices normally engaging each such member independently, and motion transmitting connections operable upon the arial movement ofl said clutch and adapted to release the loclring device actingv upon a member so engaged.

ri"he combination of a plurality of drums, a manually operable shaft co-aXial with said drums and mounted for axial adjustment therethrough and for rotation', a clutch mounted upon said shaft intermediate said drum and selectively engageable with either drum, whereby to. transmit there- ,'o the rotative movement. of said shaft, looking clutches supported for movement to an(1 from engagement with said drums, motior transmitting connections adapted to be acted upon by said first mentioned clutch to disengage one of said locking clutches upon the engagement of said first mentioned clutch with a drum, whereby to permit the rotation of a drum so engaged, and a spring operating upon each locking clutch and pressing it toward a position for engagement with the drum, said connections being adapted to transmit the pressure of said spring to said first mentioned clutch whereby to main-tain it normally in a neutral posit-ion intermediate said drums, together with means for limiting the operation of said spring-pressed connections upon said first mentioned clutch, said means being adapted to free said clutch of pressure from either of said springs when said first mentioned clutch is in its neutral position.

6. ln a device of the character described, the. combination with a pair of drums supported for rotation of a manually operable shaft co-axial with said drums and supported for axial and rotative movement, a clutch element carried by said shaft and engageable selectively with either of said drums, other clutch elements selectively engageable individually with particular drumsV upon arial movement with respect to such drums, stationary sleeves providing bearings for the axial movement of said other clutch elements and provided with slots, pins connected lll() with said other clutch elements and projecting into the slots of their respective sleeves whereby to key said elements against rotation, the length of the slots being adapted to restrict the axial movement of said last mentioned elements, springs acting upon said last mentioned elements and pressing them respectively toward a position for engagement with their respective drums, and a sleeve connected With said first mentioned element and adapted, upon the movement there-of, to contact pins connected With one or the other of said other clutch elements, whereby to torce it out oi' engagement with its respective drum against the compression of its respective spring.

7. The combination With a pair of spools,

of a handle provided With disengageable connections With said spools for the simultaneous rotation thereof in either direction, and a lock normally operative to restrain said spools against rotation whereby to secure said sash against movement. l

8. The combination With a pair of drums each provided With a plurality of spool po-rtions, o a handle rotatably and axially movable, a clutch connected With said handle and adapted upon the aXia-l movement thereof to engage selectively With either of said drums, and locking clutches independently pressed toward engagement With individual drums and adapted normally to maintain said drums non-rotatable.

GUSTAV ERNST STRANDT.

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