US1686739A - Curtain fixture - Google Patents

Description

Oct., 9, 1928.

P. G, EMr-:RY

CURTAIN FIXTURE Filed May l5, .1924

Patented @et 9, 1928.

UNITED STA TES P orificeg rna'ro G. or cnicnoadinninois.

CURTAIN FIXTRE.

Application" flied May :In one or its aspects niy invention may be said lto have for its obiecttoj produce a locking'pawl device for stick,Y operating on the described and claimed the shoe I oif the shade saine principle lasv that in my prior application, Serial No. 5%,319Qliledlrlai'ch 13,1922; the device being' somewhat simpler in construction than the specific device 'illustrated' in the aforesaid'application.

Viewed in another tion? may ybe saidV to overcome the rattling present in shade sticks they are carriedfare running.,v

The various features or novelty whereby iny invention is characterized will hereinafter l ol' its aspects any invenhave-iior its object to noises that are usually whenthe cars by which be pointed outv with' particularity in the claims but, for

reference may a ull understanding of my' invention vand of its objectsiand advai'itages,l

be had to the following-:de-

tailed' description taken in connection 'with rthe accompanying drawing, wherein: Figure 1 is a longitudinal section through Fig. '3 is a section line 3-3 of Fig. 2;

contained within the' and Fig. 5 is a. planr o one-half or a sl'iadestick embodying the present invention; Fig. 2 is a section scale than Fig. l'through of a modilied construction of shade stick taken approximately on Fig. l is an elevation of p the middle portion of the capsule-likev part shade stick in Fig. 2; 'f the'blank, in its flattened condition, roni which the said capsulelike part is toi-med.' VvReferring sents a tubular shade to Figlof the drawing, l represtick oi' any usual ory suitable construction'-r At the center of the i saine are finger pieces dicated at 2 is shown.

- each end of the stick conveniently be inthe f a part' extending inwardly gated slot 3 in thestickand provided'at itsy inner end with a screw of which one only, in-y Each linger Vpiece hasthrough an elonis ashoe 'which may forni of a channel the v trough or which is directed outwardly. Each shoe is lixed on the end of a. rod 6 extending through the .shade stick being screwed into 'the hub ing finger piece', of such `ringer piece. ciated a spring 7 direction to carry the end or the Vstick.

lThe shoes are provi friction devices, such as rollers, thereof. Between each roller and the middle laced an L-shaped pawl Y portion 0i the shoe is p to the correspond- Vith each rod is assotending to inove the rod in a the shoe outwardly from ded with suitable antitheftwo anti-friction rollers.

' on alargerv the middle portionv gagement with the `frame. the shade maybe pulled down freelybut will{ Vusual way.

threaded hub 4. At 1 8 at the ends 15, 192i semi-N01 713,405.

9 pivotally supportedat the'angle thereof as indicated at 10. I prefer'to'employ' two of these pawls although itwill, of -course, be

' understood that the principle of operation willbe the-saine if therevbe only one paw'l.v The pawls are so proportionedthat whenthe sl'ioeisl held vertically in the'- position it occupies ina window', one arm 01": each pawl'will'V extend horizontally. out through the mouthn oi' the channel, while the "otherarm will buttv against the bottom; oi' the channel; the outermost ends or' thev pawlsextending'*slightlyv beyond a line tangent to the outer lsides of yTheresultis the shade that when theshade stick is in use,

may be drawn down with the tanti-friction' rollers in engagement-With the windowt'rame, 1 f

while the pawls simply direction as viewed in Fig. lland, trail idly alongvthe frame. When the "finger pieces arereleased `at the end offa downward pull onr the shade,- the spring in the shade roller tends swing in a clockwise to roll up the shade, thereby raising the'shade stick. At'the instantvthat the shade stick starts to rise, the pawls become active, gripping the ginning rection. As the pawls grip the vframe theyk ush the shoe away `from the'latter so that the anti-friction rollers are'heldoutr of enbe locked positively in any position into4 which it' may be brought, until the pawls are ing the Vfinger pieces ing horizontal positionsfas viewed'fin Fig. 1A becomethe vertical arms,

swinging through v gravity, Whenever the shoe is t'uri'iedj end yfor when-the cars in which theyy are mounted are running; and, where the combined rattling noises able'andy annoying. Substantially, the entire noise is produced have found that by eliminating vibration'at vwood'of the window'irame andbe--' to turnin thefcounter clockwise di-` l In other words, 1.

` disengaged from the windowtrame by presstoward each other in thef Vhen thel shoe isgturned endfor l end, those arms of the Apawls that areoccupy-i this point to the extent of avoiding the striking. of metal against metal, the objection to which I have just referred is overcome. f For the purpose of reducing vibration andpreverselyacross the two ends,

l or plug of felt or rubber Vventing the striking of metalagainst metal, I have placed within the shade stick, near each finger piece, a suitable sound-deadening cushion 11 that serves as a. bearingfor the rod. The member 1l may consist of a simple block held in place between two followers 12, l2 fixed within the stick on opposite sides of such member; the member 11 vfitting snugly upon the rod 6, while the members l2 are provided with comparatively large openings 13 through which the rod passes.v The cushion prevents vibra-tion of the inner end of the rod to such an extent that the rod will not come in contact with any part of the followers.

If desiredhthe anti-friction wheels may be made of libre or other noise-deadening material, thus reducing the slight amount of noise thatl can be caused by metal wheels.

In Figs. 2-5 I have shown a slightly modied cushionarrangement in which the cushionsare located in a capsule that is inserted in the shade stick as a complete unit. The capsule may be made out of a single piece of sheet metal shown in its flattened condition in Fig. 5. The body portion 14 of the blank is substantially a vrectangle having similar elongated notches l5 in two opposed sides.`

block 2l may be provided with still another projection 23 that will fit into the slot duced by the bringing into registration each other of the notches l5. After the blank has been formed into a cylinder with the earsv or lugs 18 and 19 directed inwardly, the cushions 24 are inserted in the ends of the device and, when the disk-like ears 16 are bent later- Yally to form the endsof the cylinder, the

cushions will be clamped in place between these ears and the lugs 18 and `19. This comple-ted capsule is then inserted in the shade stick, and the rods are passed through the cushions and provided with the usual'finger pieces. The block 21 serves both as a stop to .limit the inward movement of the rods, and

also as a point of attachment for an escut-ch- Vsule and should 'tend to chatter, therewvould be no The blank is bent prowith Lesevee eon plate which is in passing' into the block 21. y

The hole 17 in thel ends of the capsule are snii'iciently large to prevent the Vrods from comingin contact with the metal of the captherefore even though the rods place by yscrew -26 metal to metal contact noise.

While I have illustrated and described and consequently no with 'particularity only a single preferred form of my invention, together with a slight modification, I do not desireto be limited to the exact structural details thus illustrated and described; but intend to Coverall forms and arrangements which come within 'the terms employed inthe definitions of my invention constituting the appended claims. Iclaim: l 1. rlhe 'combination with a shade stick, of a shoe at an end thereof provided with anti-friction'devices adapted tov ride along a stationary frame member, and an L-shaped pawl pivoted at the angle thereofto the-shoe so as to be capa-ble of swinging by tween a position in which one of its arms is parallel with the rod and projects out past `the lineof contact of the 'said anti-friction in which the other arm lies parallel to the 'rod-and projects out past said line.

devices and a. position 2; The combination with a shade stick, of a shoe at friction devices at the ends adapted to ride along a stationary frame member, two L- shaped pawls spaced apart along the shoe` and pivotedv to the latter; the construction o-f the pawls and the pivotal connections' being such that when theshoe isheld vertical one arm of each pawl extends outwardly past the line of contact ofthe anti-friction devices and upon turning the shoe end for end, the position lin which the other arms thereof eX- tend out past said line. j

3. An article of manufacture comprising a short block having peripheral lugs, a sheet metal member bent der around said Vblock and having holes at about the middle to receive said lugs, per-forated plugs of sound-deadening"material in;y

the ends of said cylinder, and ears formed outy of the metaly of said member and engaged with the ends of each plug to hold, it in place. A y In testimony whereof, I sign this speciiical tion. Y

VPLATO G. EMERY.

into the form of a"cylin-.

gravity be- -4 Y one end thereof provided with antipawls tend to swing by gravity into l

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