US2020595A - Safety stop for shade rollers - Google Patents

Description

Nov. 12, 1935.

SAFETY STOP FOR SHADE ROLLERS Filed Nov. 6, 1934 2 Sheets-Sheet l Inventor lemmrdfi f f L. P. WEBER 2,020,595

NOV. 12, 1935. L R 2,020,595

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Inventor JeoaardfW/ebez;

Patented Nov. 12, 1935 UNITED STATES PATENT OFFICE SAFETY STOP FOR SHADE ROLLERS Leonard P. Weber, Omaha, Nebn, assignor of girlty per cent to Fred B. Wallace, Omaha,

Application November 6, 1934, Serial No. 751,771 I 1 Claim. (01. 156-36) This invention appertains to new and useful threaded member I5 forming a screw is provided, improvements in shade rollers and more particuhaving a smooth portion [6 for journalled enlarly to means for association with a roller so gagement through the end wall II of the cylinthat it may be adjusted to prevent the raising der. The outer end extends through the wall of the lower end of the curtain above a given I2 and is provided with a disk I1 from which 6 height. extends the pivot pin l8 of polygonal cross sec- A principal object of the present invention is tion. to provide a curtain roller wherein the roller is A cap structure l9 having an inwardly disprovided with stop means limiting the height to posed tubular portion 20 is secured tothe roller which the free end of the curtain can ride, thus 6 by suitable securing elements 2|, it being seen 10 preventing the flying up and wrapping around in Figure 3 that the tubular portion is secured of the curtain, which frequently happens when to the cylinder I0. I the curtain slips out of the operators hand. In the operation of the roller, the screw l5 Other important objects and advantages of the is first adjusted so as to move the follower 22 invention Will become apparent to the reader of in contact with the bumper 23, the follower 22 16 the following specification. being provided with a threaded bore for receiving In the drawings: the screw l5 and lugs 24 riding in the grooves l3, Figure 1 represents a fragmentary elevational while the bumper 23 is provided with a bore View of a window frame showing the curtain and larger in diameter than the screw l5 and with roller applied. lugs 25 for riding engagement in the short slots 20 Figure 2 represents a fragmentary side eleva- I4. A compressible coiled spring 26 is interposed tional View of the roller. between the end Wall [2 of the cylinder l0 and Figure 3 represents an enlarged fragmentary the bumper 23. longitudinal sectional view. With this adjustment, when the shade is pulled Figure 4 represents a cross sectional View down, the follower travels away from the bumper taken substantially on line 44 of Figure 3. 23, and in the event shade slips from operators Figure 5 represents a fragmentary longitudihand, the roller can only rotate back to point nal sectional view through one end of the roller of contact between follower 22 and bumper 23.

showing the mechanism in elevation. While the foregoing specification sets forth the Figure 6 represents an end elevational view invention in specific terms, it is to be understood 30 30 of the novel roller. that numerous changes in the shape, size, ma-

Referring to the drawings wherein like nuterials may be resorted to without departing from merals designate like parts, it can be seen in the spirit or scope of the invention as claimed Figure 1, that the numeral 5 represents a comhereinafter.

mon style of wooden or metal window frame, Having described the invention, what is claimed 35 while numeral 6 represents a curtain roll supas new is:

ported by the bracket 1 and on which is supported In a shade roller having a hollow end, a pivot the curtain 8. pin for disposition into the said hollow end, a The roller 6 is improved at its pivot end, by spring projected bumper in the hollow end, said providing a bore 8 in this end of the roller and pin being provided with threads, and a follower 0 inserting an elongated cylinder Ill therein having adapted to be fed by the said threaded portion of the end wall II at its inner end and the end the pin being adapted to strike the said bumper Wall [2 at its outer end. This cylinder I0 is proto stop the roller, and guide means for the said vided with a pair of longitudinally extending follower, a barrel for receiving the pin and the slots l3, these slots being at diametrically opstop and the follower and the spring, said barrel 5 posite side portions of the cylinder. The cylinbeing provided with a longitudinal slot and lugs der is also provided with a pair of short slots on the stop and bumper for slidable d1sposit1on l4-|4 alined with the first mentioned slots. in the slot.

In place of the usual pivot pin, an elongated LEONARD P. WEBER.

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