US1505386A - Sunblind and the like - Google Patents

Description

Aug. 19 1924. 1,505,386

. E. C. GOLDING ET AL SUNBLIND AND THE LIKE F d Au 9, 1923 2 Sheets-$hcel l I I I OOOOQUOUO'OODDOO Aug. 19 1924.

N\ a 4 v v i N 3 6%. A {2501-12 e ys 2 Sheets-$heot 2 E. C. GOLDING ET AL SUNBLIND AND THE LIKE Filed An: 29 1923 1 imparted to the rail through the mediu'n' Patented Aug. 19, 1924.

UNITED STATES PATENT:"oFFI -cE EDWARD CHISIVION GOLDING, OF LONDON, CHAR-LES PER/KS, 0F BARN'Es AND ALFRED JOSEPH PEMBERTON, OF SOUTHEND-ON-SEA; ENG-LAND.

snnniirnn AND, THE LIKE.

Applicationlfil'ed August 29, 1923. Serial No ssasva To all whom it may concern:

Be it known that EDWARDOl-IISMON GOLD- ING, British subject, of 28, Gumleigh Road,

Improvements in Sunblinds and the like,

of which the following is a specification;

This invention relates to sunblinds and the" like and its object is to provide improved mechanical means adapted for'actuationby power or by hand for the purpose of projecting the blind for use and withdrawing it when not required for use.

According to this invention the movable rail forming the free edge of the blind is protected from or drawn towards the spring influenced roller on which the blind is wound by the action of two rods-pivotally connected to the rail andito two travellers mounted to move upon guides parallel with! the rail and roller and movedsimultaneously in opposite directions by hand or power operated mechanlsm which may consist of an endless chain or band to opposite runsof which the travellers are attached or other traversing means; lVhenthe blind is] wound up and out of use, the rail is in proximity tothe horizontal guides, and the rods con-' necting the travellers with the rail lie almost in line with these guides, but upon operating the driving chain to move the travellers along the guides a thrust will be of the rods and the rail will in consequence be moved towards the projected position, the rods moving angula-rly with regard to the'rail as well as longitudinally in relation to the guides.

In one way of carrying the invention into practical effect a guide rail composed of,

some suitable material such as profilei'ron is mounted in a horizontal position-adjacent the usual spring influenced blind rollerfan'd wheels or sprockets mounted at opposite ends of this rail carry an endless chain or band whose upper and lowerruns are located above and below the guide rail. The lateral edges of the guide rail form runways or tracks along which two travellers connected' with the upper and lower runs of the endless band are caused to move in op p'osite directions when the endless band operated by the wheels or sprockets.

A railto which thefreeedge of the blind fabric is attached issupported two arms,

each ofwhi'c'li is pivotally attached atone end to traveller and at the other end to the movable blind rail. When the blind is' retracted, these arms are disposed at a slightangle to the movableblind rail and to the horizontal guideso'that upon motion being imparted to the endless drivingband in the appropriate direction the thrusts imposed upon-thearms by the travellers cause the blind railto moveaway from the'hori zontal guide rail to an extended position.

By reversing the motion imparted to the endless band the blind maybe'withdrawn'to theretractedposition again.

The endless band may be driven by power or manuallyoper'ated mechanism located ad jacent or at a distance from the blind operating means. l/Vliere it is'd'esired'that th e blind when fully projected shall assume a sloping position,- the pivotal" axes about which the arms turn with respectto the travellers are inclined from the vertical.

The invention is hereinafter more fully described with reference" to the accompany 111g; drawings in which 1 Figs. 1 and 2 when elevationshowing diagrama'tically one practical form of blind operatingmechanism in retracted and extended positions respectively. I

is a side elevation of the same showing the blind extended Fig. 4 is a fragmentary side elevation shelwing .a' modified form of construction an Fig 5 is a front elevation of a further modified forniwherein the blind is shown in a partlyextended position.

Referring to Figs. 1- to" 3' it will be seen that the blin'd a composed of canvas" or othersuitable fabric is wound upon a spring influenced roller 5 and attached at its free These travellers e and f are connected to the upper and lower runs of an endless band composed partly of chain 9 and partly of rope h. The chain g engages a sprocket wheel 71 at one end of the guide rail and the rope it passes around a pulley j at the other end of the rail 03, thus upon rotary motion being imparted to the sprocket wheel-the travellers e and f will move in opposite di-' rections along the guide rail 65.

The movable rail 0 at the free edge of the blind is connected to the travellers by arms lspivoted to the travellers in such manner as to turn about axes inclined away from the front of the building protected by the blind in order that said arms may move from a substantially horizontal position adjacent the guide rail when the blind is retracted .to a downwardly sloping position when the blind is projected.

By connecting these arms to the ends of the rail 0 through the medium of short cranks Z as shown, a small amount of lost motion between the parts is provided for the purpose of facilitating the initial movement of the parts either when projecting or withdrawing the blind. Without this lost mo tion, it would be difiicult to start the operation of the device from either of its extreme positions, owing to the angularity which the arms a have to the rails in either of these -pos1t1ons.

In order that the weightof the blind a,

rail 0 and arms is may be adequately sup.

ported in all positions, auxiliary arms m pivoted to turn about sloping axes in fixed brackets m are pivotally connected to the arms 70 at about their centres of length. In the construction shown, the mechanism is driven by an electric motor n geared direct by worm gearing n to the sprocket wheel 2'.

The modified construction illustrated in Fig. 4 difiers from that just describedonly in so far that the auxiliary arms m are arranged above instead of below the main arms is, and in the manner of pivotally mounting the arms Z4 upon the travellers and the arms m upon the fixed brackets m.

In the arrangement illustrated in Fig. 5 in order to enable a larger degree of projection to be had relative to the width of the blind, both travellers are arranged to move the full length of the guide instead of. only half the length as in the construction first described. That is to say the travellers and f are ar ranged .upon superposed guide rails CZ in such manner that they can pass one another and longer arms is capable of projecting able transmission mechanism connected with i the blind projecting mechanism above de scribed. 1 I

We claim 1-- 1. A device of the class described comprising a flexible blind, a spring roller upon which said blind is wound, a stiff rail secured along the outer edge of said blind,v

guiding means extending parallel tosaid roller, rods for projecting and retracting said blind, having their inner ends slidably engaged with said guiding means, means for sliding the inner ends of said rods along.

said guiding means to project and retract said blind, and short crank arms connecting the outer ends of said rods to said rail, whereby to permit a small amount of lost motion between the parts for the purpose set forth. I

2. A device of the class described com-v prisinga flexible blind, a spring roller upon which said blind is wound, a stiff rail secured along the outer edge of said blind, a pair of guide-rails arranged in superposed relation extending parallel to said roller a pair ofrods for projecting and retractingsaid blind having their outerends connected to said: stiff rail, the inner end of one rodv being slidably engaged with one of said guide-rails and the inner end of the other rod being slidably engaged with the lower edge of said guide-rail, the inner end of each rod traversing the full length of the guide rail with which it is engaged, an endless band mounted for movement with its upper and lower stretches disposed adjacent the upper and lower guide-rails respectively, means for operating said band, means connecting the inner end of one of said rods to the upper stretch of said band, and means connecting the inner end of the other rod to the lower stretch of said band.

In testimony whereof we aifix oursignatures. f

EDWARD CHIbMON GOLDING.

CHARLES PERKS.

ALFRED JOSEPH .;PEMBERTON1

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