US1649861A - Sash-weight support - Google Patents

Description

Nov. 22, 1927.

C. L. SCHNEIDER SASH WEIGHT SUPPORT Filed June l5l 1925 Patented Nov. 212,` 1927.

UNITED" srArEs l 1,649,861 PATENroFFice g oHBIsriAN n SCHNEIDER; or imvn'ivron'r, roWA.

1' sKAsH-WEIGH'r'sUrPonT.

-Application le'd June 15, 1925. Y Serial No'. 37,066. Y

sashes andthe windowlcasings will result in more or less resistance tothe raising and lowering of the sashes.-k In construct-ions vwhere each sash is `connected to individual" weights at each side thereof as well as in l5 constructions where theV two sashes of the window are connectedtogether by a connector, such as a rope or chain, passing overfa pair of casing pulleys and through a pulley of arcommon weight, itis usually found that there is not an equalization of the` weights 'of the parts, such as the sashes and the window weights. These have a disadvantage of requiring that the window weights Vbe variable,or, that some other means be used to I counterbalance or equalizethe differencev in the weights of the objects or counteract their unbalanced effect, and` particularly so in the case where the two sashes are'tonnected together by a common connector ,passing through a common weight. ,l

The present invention is designed yand adapted to avoid these disadvantages and has among its objects, teracting devices for ycounteracting or equalizing the differences of weights between al window sash and a window weight,for'bey tween two window sashes havingv a common window weight; to provide means for Vapplying connected to the heaviervobject, whether it bea sash, a window weight, or similar objects; to provide for bending or kinking the connector kfor imposing suoli kresistance thereto; to provide for varying or ad]usting the amount of 'bending or kinking of the.

connector, and hence, the resistance to the overweight of the heavier objectgto provide Y groovedfor the running thereover of the for, preferably', bending the connector between a sheave lor pulley,` over which the connector runs, and an idler carried near the sheave or pulley; to providel for a mov-vable member, such as a sliding yoke, prefer-v ably carrying a bending roller, and an operating element, such as a rotating screw for eifectin'g lthe slidingy of thel yoke when the screw' rotated; to provide for meansfsueh the provision of counresista-nce to the connector portionas a stop member, preferably'in the" form of a cross-pin for limiting thev movement of the yokein one direction, whereby the screw and the yoke will not become disconnected from each other; the yokey preferably hav ing a shoulder for yengagement with the pin; to provide for mounting the screw, which preferably has a head', for rotary action, and means for holding the'screw against longitudinal. action and ypreventing it from working. loose or Y becoming disconnected vfrom the device,preferably' by apart' of a the"v screw-head and to providefor such other objects,

advantages and capabilities as will later appear and are inherently pos' sessed by. the invention. y

` Referring to the drawingsillu'strating one form of theinvention,AV

' Figure l isa view in vperspective of a'rde- ,Y "vice constructed in. accordance with the 'in' vention. Y. f

Figure 2 is yalongitudinal sectional view through such device.

Figure 3 is atransv'erse sectional Yview devicefoverlapping the edge or Yborder 'of taken on fa pla-ne represented by line-ivi'n' Figure 2 of the drawings and y Figure f1 isl a fragmentary sectional view takenvon a'plane representedby line i4-4 fof Figure 3.* v

v Referring now ings, anembodimentselected to illustrate the invention is shown ascomprising 'a sup porting member 1 in the form ofacasing or shell'capable of i c asingor 'frame 2 by a suitable securing element,"isuch as` sc'rews'B passing through a faceilangel forming, preferably, an inT tegral partof the supporting member f.' Within the shell'lis rotatably mounted av more in detail to` the drawbeing secured to alwindowr .sheave or pulley 5 suitably'grooved for the passage thereover of a flexible connector 6, 'such'asfa'ropm chain or the like.- i

1 The sidewalls of the shell vhave depending-*portions 8 between which extends and Ato'whichy isv secured a shaftor pin 9 for rotatably/supporting an idler roller 10 suitably 'connector 6; Between the pulley 5. and the l roller 10 is slidably supported. a yoke 11 vin tracks or channels 12 formed in the sidev the runningthereover of the eiiiiectertr At the othergendfof the yoke is provided Vla crossfhead '15 .apertured and threaded to receive the threaded part of a screw ,lhaving its unthreaded shankportion rotatably mounted in a bearing portion 17 integrally provided between the side wallsoi the shell 1 and at the front thereof and beneath the pulley 5. The screw preferably has asubstantially cylindrical head 18 capable of free rotation in a recess provideqzl in the bearingfportion 17 andvat the irontof the shell 1. The A cross :head also has alprojecting .portion ,19j to Aprovide a shoulder .20;capable of :engaging with a erosie pin v21 `extend- 4fing between and Secured -tO-thefsde walls vOf the, shell .l and at a place to preventftheftotel :disengagement oftheroes head 1,5 from .the -end of the Vscrew 16 when the yokehas been moved bythisscrew towardthe rear-of the fdeviee. Y t

gOver .the frontier .faceportion of the de- :vice is :preferably secured a ieee l:plate 22 Iby means offpins .L23 driven into-,the vflange -`portQIl 4: aS clear-ly shown in Alligure 2 of the drawings The platefaQ 4preferablv,has

suitable counter-,sunk iopenings for the re- :ception A,ot v, thegheads .of thev screws f3. `It', also has an elongated opening 24 out of which .the ilpulley 5 andthrough which the rope 6 may pass to a fweight (not shown). Italso is provided with an aperture or opening26 oppositethesorew:head118, through which opening the end of a screwdriver may :pass for engagement with the YVslot of ft-hescrew head ,-18 for rotating the screw whenit fis desired to adjust or vary the Yyoke )11 and' the roller :14. 'Ihezaperture26` is preferably smaller (than `the diameter of the head `18 so as to provide an overlappingportionrover .theedge `oribor-derol `thefhead 158 :soas to prevent the longitudi-nal movement of the ,screw/,When the sameisrotated,:and'falsothe -avorking loose or falling apart .of theserew from-,the device.

The lrope :16, or similar connector', :passes 4over ,the :pulley 14 andbehind the rollerlOlwithvitSendiporltion i27'eitending and connected ton weight for `a -jpulley carried Ibya :weight invia A'case lwhere italie rope lContinues upwardly to 1a- --second supporting device andf-to asecond eXteIldsand is connected to :a :wi-ndowsash.

iIn operation the rope Aportion .extending tofthefsash'passes Aover't e-main pulley 5 vulley A:10, f the rope and 14, so as to Limpose-:more or vless ,resist lance to the lpull for .tension yon fthe rope .so gasto-'counteractthe :diierence of weights of Athe :sash yand the 1window '.weightfand thus :avoiding tundesiried motion therebetween 'The amount ,cof kbend made in :the rope lm ember, @said yoke gbeing :5 and-'infront o'iztfhefroller varied by a sliding or longitudinal v-movenient of the yoke eected byfavrotation of the screw 16. It will be clear that when the screw is operated in one direction the yoke will be ted lor moved' outwardly and when V.rotated in an opposite direction it will be fed inwardly or towards the front so as ltowinerease ltlle bend or kink in the rope. This bends or crowds the rope portion between-'the rollers so thatfit willqbe more dilieult ,-or the rope -to Passover the'fmain pulley 5, that is, it *will take greater .elifort for the #Weight :to fpull -011` therrope :portion u12,7 and will have Iless li ftingzeiect' on ithe sash eonnectedito the .rope portion'p28.

In order -that j-theyoke may ,-notzb'effedfito theprearztoo far so thexend of the :screw lwould become detached Y from @the GI'QSSthead, the 'shoulder .20 will `Contact `4,with fthe fstop iorzlimiting pin 2l to prevent this NVhile ,I have herein described andnpon the drawings shown an eillustratvelembodilinert of theinventionlit is to be :understood Y`that the invention `comprehends other con- Y claim =1. ln sash weight Supports,;in combinastion, `an vidler pulley; mounted on, a-fyoke,..said yoke bengslidablyf adjustable between gxed limits, a plurality I off-pulleys rotatable by :a

-legrible means having. aw bend, said bend AIberingvva-riabletby said L:adjustable pulley.

-g 2. In sash L,weightsupports; 'in combination, la threaded yoke slidable, on a supporting adjustable and operable by a :,nonetran-slatable threaded member, an idler-pulley mounted in said ,yoke andfengaging :ailexiblc connector, other pulleys engaging said ;lekible connector, vwhereby abend is imade 1n -saidconnector to create afdnag between .said pulleys and sash i. weights. Y

3. A sashsupport having a'fshell forzatltachment toa window casing, rLa sheaverotat- .ably ,carried by the shell l.-andf over wh'ieh passes -ailexiblei connector -tofthe sash and-to' a weight, @a roller over Iwhich passesthe eonne'ctorfrom the weightfto the sheave, a second iroller lflocated 'on fthe opposite'fsiderof ktheconneetorfztroln, the sheave 4and first -mentioned'roller, an adjustable 'carrier :for the second yroller .f'for :causing the ccmneetor to Vbe more orlesstortuous and constrainedlbe- 1.twen the rollers, a`-tool operated elementcon- -lnectedto the carrier-and' operable to adjust fthe position of the carrier and seeondrollerI relative to the kfirst roller,` and means `guarding against .the disassembling yof the elements. y I f 4; In sash weight supports, in combinartion, an enclosed bracket, .aplurality of pul-` leys therein engaging `a flexible `connector,

running from a sash to a Weight, means for bending lthe connector to oer resistance to the difference in Weights of the sash and 10 Window Weight, said means including'a sliding yoke and a pulley for engaging the con y nector to bend it Inore or less, 'a screw threaded to the yoke and rotatable to slideV the yoke to and fro, and a stopy element for limiting'the sliding of the yoke to prevent the disconnection of the screw and yoke.

my name to this specification.

CHRISTIAN L. SCHNEIDER.

In Witness whereof, I hereunto subscribe

Images