US513783A

US513783A - Shade-roller

Info

Publication number: US513783A
Authority: US
Publication date: 1894-01-30
Anticipated expiration: 1911-01-30

Description

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- s, HARTSHORN. SHADE ROLLLB. No.' 513,783. Patented Jan; 30,1894.

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v SHADE ROLLER. v No. 513,783.V Patented Jan. 30,1894.

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STEWART HARTSHORN, OF *SHORTV HILLS, NEW JERSEY, ASSIGNOR TO THE STEWART HARTSI-IORN COMPANY, OF NEW JERSEY.

SHAD E-ROVLLE R.

SPECIFICATION forming part of Letters Patent No. 513,783, dated January 30, 1894.

Application filed December 31, 1890. Serial No. 376,377- (NO 1110d61 -To all whom it may concern:

Be it known that LSTEWART HAR'rsHoRN, a citizen of the United Statea'and a resident of Short Hills, in the county of Essex and State of New Jersey, have invented a new and useful Improvement in Shade Rollers., of which the following is afull and exact descrip-l tion, reference being had to the accompanying drawings, forming part'of this specification.

My improvement relates to spring rollers on which window-shades, maps and other articles are mounted, and in which the roller revolves around a central stationary spindle or shaft, and refers to an improved device for preventing the window-shade or other article from being accidentally separated or torn off vfrom the roller when pulled all the Way down or completely unwound from fthe latter.

In the drawings' illustrating my improvement, Figures 1 and 2 are end views of an ordinary spring stop shade-roller with my improved device attached to the same. Fig. 3 is a side view partly in section through the line a: w of Fig. 2. Figs. 4, 5, 6, 7, 8 and9 are similar views showingmodited forms of my improvement. Figs. 10, 1l and 12 illustrate the application of myimprovement to a spring roller, Whether a stop or balance roller.

When the 'shade or curtain is completely unwound from the roller, or pulled downV so that the strain or pull comes directly on the tacks or other fastening device by Whichit is attached to the roller, there is danger that the shade will be torn off from the tacks, or otherwise separated from the roller.

My improvement is designed to prevent the complete unwinding of the shade, and hence the direct strain or pull of the shade on the fastening device, and consists essentially of an attachment applied to the roller which locks the roller and prevents its further revolution just before the shade is entirely un- Wound.

In the form of my device shown in Figs. l, 2 and 3, a is a long spring of any suitable metal which is attached by one end to the side of the roller near the spring or spindle 4 5o end of `the latter, so as to spring out a little Y from the face of the roller, as shown in Fig.

3. The 'free end, a of the spring is bent at right angles so as to pass around the edge of the roller and in front of the end plate P on which the pawls are mounted. The outer end of the spring a engages with a pawl or catch Vb hinged or otherwise fastened at one end to the plate P or revolving part of the roller and provided at its other end with a hook b adapted to engage with the notch or ratchet cconnected with the stationary spindle S. As will be understood from Figs. 1 and 2, as the spring a is moved up and down or across the end of the roller it raises the latch b from, or draws it down into, engagement with the notch c. As the latch hooks into or engages with the notch it locks the roller or prevents it revolving in the direction tounwind the shade.

The movement of the spring a, and consequent releasing and engaging of the latch with thev notch are effected by the shade D. As the shade is Wound around the roller and hence over the spring a it presses the latter against the face of the roller thus raising the end a and freeing the latch b from engagement with the notch c as shown in Fig. l, thus permitting the roller to revolve. As the shade is un wound from that part of the roller where the spring a is fastened, the latter freed from the pressure of the shade springs, drawing down the /end a of the spring and the latch b, and bri-nging the hook end b of the latter into engagement with the notch c, as shown in Figs. 2 and 3 and thus stopping the further revolution of the roller and the unwinding of the shade. The spring a is connected to the side or face of the roller at such a point that at the moment the shade is unwound from the roller so as to free the spring, the latch b will be in position to engage With the notch c on the spindle, as shown in Figs. 2 and 3, and the shade is attached to the roller at such a position with respect to the spring a and latch h, that when the latch has engaged with the notch on the spindle and ar rested the revolution of the roller, the shade will still be Wound over a portion of the roller, as shown in Fig. 3, and the strain or pull will thus not be directly on the tacks or fasten-A ings cl. Hence, with my improvement, in

pulling down the shade, before the latter is entirely unwound from the roller, the revolution of the roller is stopped, and a portion of the shade still remains wound on the roller and thus the force of the pull never cornes directly on the fastening device by which the shade is attached to the roller.

In Figs. 4, and 6 in place of the spring a. connected to the side of the roller, there is a bent wire a a one end of which is connected with the pawl b hinged to the end plate P. This wire c t, which is free at its other end, passes over the edge of the roller and along the side of the latter as shown in Fig. 6. The operation is the same as with the device shown in Figs. l, 2 and 3. The free end of the wire a is actuated by the winding and unwinding ot the shade, and raises the pawl b from or brings itinto engagement with the notch c. y Figs. 7, 8 and 9 show a form of the device in which a frame b b provided with a catch b is attached to the spring a and made to engage with the notch on the spindle.

In Figs. 10, ll and 12 the ratchet or notch c is arranged on the spindle inside ofthe plate P, and the spring a passes through an opening in the side of the roller and is bent at its `upperor free end to form a catch b which engages with the ratchet or notch c. In all cases the unwinding and winding of the shade actuate the spring a and arrest the revolution of the roller before the direct pull of the shade can come on the fastening by which .the latteris attached to the roller.

VI do not wish to limit myself to the particular forms of my device described and f shown herein, asthe construction of the parts may be waived as is found desirable.

` i Bythe term spindle employed in the description and claims, I mean the part of the roller variously called the shaft, stick or spindle the outer end of which is locked in one of the brackets, and which remains V,stationary as the roller revolves.

.'What I claim is y l. In a shade roller, a stopping device consisting of a piece connected to the revolving portion of the roller, provided with means for engaging with a stationary part of the roller and adapted and arranged to be acted upon by the shade in its winding and unwinding to cause it to disengage and engage the stationary part of the roller in the manner substantially as described, said stopping device and engaging means being both borne by the roller whereby the roller may be removed from its bearings without disengaging said parts from their operative position.`

2. In a shade roller, in combination, a piece attached to the revolving part of the roller and having means for engaging with the stationary spindle, mechanism connected to the piece whereby the piece is held from engagement with the spindle by the wrapping of the shade over the same, and released and brought into engagement by the nnwrapping of the shade, and the stationary spindle, said several parts being borne by the shade roller whereby the latter can be removed from its bearings without disengagin g said parts from operative position,substantially as described.

3. In spring shade rollers, astopping device consisting of the catch 1J attached to the revolving part ot'ythe roller and adapted to e11- gage with the notch on the stationary spindle S and released or brought into'engagement by the wire a a actuated by the shade, said catch and Wire being borne by the shade roller whereby the latter can be removed from its bearings without disengaging said parts from operative position, substantially as described.

4. In a shade roller, in combination the catch attached to the revolving portion of the roller, the wire a. a. connected to thecatch and extending along the face of the roller, the spindle S provided with the notch c, and the shade D, said catch and wire bcingborne by the shade roller whereby the latter can be removed from its bearings Without disengag- .ing said parts from operative position, substantially as described.

5. In combination, a shade roller, a shade connected therewith, a piece extending to a position slightly raised from the periphery of the roller at a point to be enveloped by the shade whereby it is adapted to be depressed toward the periphery by the rolling of the shade, and locking mechanism actuated by the retreat of said piece from the'periphery whereby the unrolling of the shade is arrested before its point of attachment to the roller is reached, said extending piece and locking mechanism actuated thereby being borne by the shade roller whereby the entire operative parts are retained in operative relation while the shade roller is removed from its bearings, substantially as described.

AUG. G. WtN'rnn, y WILLIAM H. VAN SYCKLE.

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