US1242949A - Shade-roller. - Google Patents

Description

C. W. KIRSCH.

SHADE ROLLER.

APPLICATION FILED FEB. 11. 1914..

Patented Oct. 16, 1917.

SHADE-ROLLER.

Specification of Letters Patent.

Patented Got. 16, 1917.

Application filed February 11, 1914. Serial No. 818,059.

To all whom it may concern:

Be it known that I, CHARLES W. Kinsorr, citizen of the United States, residing at Sturgis, in the county of St. Joseph and State of Michigan, have invented certain new and useful Improvements in Shade- Rollers; and I do herebv declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in shade rollers, and has for its object to provide a device of this character which is very simple, cheap and efiicient. The invention consists in the features of construction and combinations of parts hereinafter fully described and particularly claimed.

In the accompanying drawings illustrating the invention:

Figure 1 is a view in side elevation partly in longitudinal section of a shade roller embodying my invention.

Fig. 2 is a central longitudinal section of the same on the line 22 of Fig. -1.

Fig. 3 is an end elevation of the roller.

Fig. 4 is a detail transverse section on the line l4l of Fig. 2.

Fig. 5 is a detail transverse section on the line 55 of Fig. 2.

Fig. -6 is an end elevation of the roller opposite to that shown in Fig. 3-.

Fig. 7 is a detail perspective View of a cap for one end of the roller.

My invention has for one object to provide a shade roller which can be made of two or more pieces of Wood assembled to form a block which may be then turned to cylindrical form, the assembled pieces being first grooved longitudinally so that the completed roller is provided with a square bore extending from end to end thereof.

A further object of the invention is to provide ratchet mechanism and actuating spring for the roller which are easily and quickly assembled in the roller and operate efficiently to hold the roller against revolution at any desired point.

Another object of the invention is to provide means whereby the roller may be readily adjusted to fit the brackets in which the respective ends of the roller and its actuating mechanism are engaged.

Further objects of the invention Will ap pear from the following specification.

The present invention includes more or less the subject-matter of my applications for Letters Patent Serial No. 656,777 filed after fully described.

In the accompanying drawings, 1 indicates the shade roller made of wood, it being understood, of course, that any other suitable material may be substituted. In the construction of the roller the strips of wood comprising the respective semi-cylindrical portions of the roller are first provided with longitudinal rectangular grooves which when the strips are assembled, as shown in Figs. 2 and 5, coact to form the square bore 2 extending from end to end of the roller 1. The roller is turned to cylindrical form concentric with the axis of the bore 2 after the strips have been assembled.

In one end of the bore of the roller there is mounted a U-shaped member 3 of sheet metal carrying a pivot pin 4 upon which one end of the roller rotates in one of the brackets usually provided for shade rollers.

The flanges 5 of said members 3 are of a width slightly greater than the diameter of the bore 2 and are so disposed a distance apart substantially equal to the diameter of the bore 2, said member being adapted to be driven into said end of the roller a greater or less distance according to the distance apart of the brackets in which said pivot pin 4: and the outer end 6 of the shaft 7 of the roller are disposed apart, that is to say, the shade roller is cut to a length according to the width of the window frame in which it is to be hung, but owing to the fact that these measurements are scldom made very accurately the roller may be out too long or a little too short. The member 3 enables this difference to be readily compensated by primarily permitting the same to extend the excessive distance outin which the shaft 7 is rotatable, the said disk being held in placeby means of the capmember 10 which comprises the circular plate 11 having a plurality of peripheral flanges 12 from which projections 13 extend outwardly, each of the latter being provided at its free end with a prong 11 adapted to be driven into the circumferential face of the roller to hold said plate in place. Rivets 15 pass through said plate 11 and said disk 9 and serve to hold the same in engagement with each other.

The plate 11 is provided in its middle portion with a dished cylindrical depression 16 and with two radially outwardly extending diametrically opposed channels 17 which extend to the peripheral edge of the plate 11. The outer wall of each of said channels 17 is extended outwardly to form a bendable cover projection 18 which is adapted to be bent over as shown in Figs. 1, -2- and 4-, to close said channels at their outer ends. The latter communicate with the dished portion 16 through which the said shaft 7 passes, the end wall of said portion being provided with a central opening for the passage of the portion 6 of said shaft, and being provided between its end with an annular enlargement 19 cut away at diametrically opposite points to form what may be termed the ratchet teeth 20 therein. Said enlargement 19 is, confined between the disk 9 and the outer wall of the portion 16 of the member 11 and is thus held against longitudinal movement relatively to the latter. In each of said channels 17 a gravity-actuated plunger 21 is mounted, which is adapted to move inwardly to engage one of said teeth 20 of said member 19 and outwardlv to become released from engagement therewith. Said plungers 21 are ada ted further, upon rapid rotation of the roll er, to be held by centrifugal force out of engagement with said member 19. The portion 6 of the shaft 7 is provided with flat surfaces 22 and 23 to engage in a slot in the bracket to hold said shaft against rotation relatively to said bracket.

Attached to the inner end of the shaft 7 is a tube 24 which is split or longitudinally slotted, as at 25, at one end, and said end receives the inner end portion of the shaft 7. In order to rigidly secure the shaft 7 within said tube 24 a collar 26 of slightly smaller inner diameter than the outer diameter of the tube is driven upon the split end ofthe latter after the shaft 7 has been inserted into the same thereby contracting said tube upon said shaft and holding it against rotation relatively to the latter, and also against longitudinal movement relatively to the same. In the slot or slotted portion 25 of said tube 24 one end of a helicalspring 27 is engaged, the other end of said spring being secured to a member 28 comprising a hollow sleeve rotatable on the tube 2.4.- and having diametrically oppositely disposed longitudinal flanges 29. the width between extreme edges of which is substantially equal to the diagonal of the bore 2 and which engage in said bore and are held against rotation relatively to the roller 1, said member 28 being, however, free to move longitudinally in said bore and on said tube 24:, thereby accommo dating itself to the movements of the spring 27 longitudinally of the tube 24 and relatively to said member 28 and the roller 2.

The device operates in substantially the same manner as the well-known Hartshorn shade roller, that is to say, when the roller is hung in brackets and the window shade is drawn off the roller, the latter is rotated against the action of the spring 27 and the plungers 21 coact with the teeth 20 to prevent reverse rotation of the roller after the shade has been drawn down the requisite distance. In order to permit the roller to rotate to rewind the shade, the same is first drawn down farther a distance suflicient to disengage the plungers 21 from the teeth 20 and is then permitted to be rewound rapidly by rapid rotation of the roller so that the centrifugal force exerted during such rotation of the roller will maintain the plungers 21 out of the engaging relation to the teeth 20. 5 Upon reducing the speed of revolution one of said plungers 21 will move by gravity into engaging relation to one of the teeth 20 thereby preventing further rotation of the roller by the spring 27.

In some instances it is desired to provide the shade roller without the pawl and ratchet mechanism. In the present construction this is easily accomplished by bending back the lips 18, then removing the plun- 105 gers 21 from the channels and then bending back said lips or flanges 18 to again close said channels. This is usually desirable, particularly where the shade roller is disposed at the bottom instead of the top of the 110 window casing, and the shade is drawn up to cover the Window instead of down, the cord attached to the shade being, in such case, secured to maintain the shade raised to the desired point.

I claim as my invention:

1. In a spring actuated shade roller, a plate for one end of the roller, a cap for said end receiving said plate and the end portion of said roller and having a central recess 120 provided in its end wall with a central opening, a shaft for said roller passing through said central openin and a similar opening in said plate, a rate let rigid with said shaft adapted to be received in said recess and 125 held therein by said plate, radial channels in said cap communicating with said recess, said channels open at their other ends, covertongues for said ends of said channels integral with a wall thereof and adapted to be 130 end receiving said plate and the end portion of said roller and havin a central recess PI'OVl'dBd in its end wall with a central opening, a shaft for said roller passing through said central opening and a similar opening in said plate, pronged projections on said cap adapted to be driven into the circumferential face of said roller for securing said cap, a ratchet rigid with said-shaft adapted to, be received in said recess and held therein by said plate, radial channels in said cap communicatin with said recess, a ratchet rigid with sai shaft adapted to be received in said recess and held therein by said plate, radial channels in said cap communicating with said recess, said channels open at their other ends, cover-tongues for said ends of said channels integral with a Wall thereof and adapted to be bent over to close the same, and plungers in said channels adapted to engage said ratchet to hold said shaft against rotation relatively to said roller in one direction.

3. A shade roller comprising a roller having a central longitudinal square bore, a U- shaped member having arms of slightly greater width than the diameter of said bore and spaced apart to accord with said diameter adapted to be driven into said bore, and a stud mounted upon the middle portion of said member.

In testimony whereof I have signed my name in presence of two subscribing wit- M. M. Bonn, G. M, Y]

' nesses.

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