US147099A - Improvement in curtain-fixtures - Google Patents

Description

UNITED STATES PATENT QEEICE CHAUNCEY BUCKLEY AND LODOWICK L. SAVY ER, OF MFRIDEU, CNN.

IMPROVEMENT IN CURTAIN-FIXTURES.

Specification forming part of Letters Patent N0. 147,099, dated February 3, 1874; application ilul October 1, 1873.

To all who-m 'it may conce-rn Be it known that we, GHAUNCEY BUCKLEY and LODOWICK L. SAWYER, of llileriden, in the county of N ew Ha 'en and State of Connecticut, have invented a new Improvement in Curtain-Fixtln'es; and we do hereby decla-re the following', when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and 'exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure 1, a view of a portion of a windowfralne, showing the application of the shade thereto Fig. 2, a side view of one end of the roll with the mechanism attached; Fig. 3, a longitudinal central section ofthe same; Fig. 4, a section, on line a' x of Fig. 2, showing the construction of the pulley, Figs. 5, 6, 7, detached views, to illustrate the construction and operation.

This invention relates to au improvementin iixtures for window-shades, designed for rolling the curtain from the top down or from the bottom up, as occasion may require; and the invention consists, first, in constructing the halyard-plate so as to surround and work upon a ratchet as a bearing, the roll turning freely in one direction, but engaging a tooth upon the ha-lyard-plate in the opposite direction, so as to prevent the ratchet from turning; second, in constructing the pulley so as to surround and work upon a ratchet as a bearing, so that the pulley turns freely in one direction without ett'eet upon the roll, but turning in the opposite direction engages the ratchet, so that the turning of the pulley will cause a corresponding revolution of the roll.

The roll A, to which the window-shade is at tac-hed, may be of wood or other suitable material, the shade B attached thereto in any known manner. Upon each end of the roll a pulley, C, is attached, and around this pulley a cord, N, is wound, one end of the cord rigidly secured at the top of the window, as atl), and the other below, as at E, so that as the roll moves up and down this stationary cord will cause the pulley to revolve. To raise or lower the roll a cord, n, is attached to a halyard-plate, F, and a corresponding cord, b, to

u corresponding hal yard-plate upon the other end, the two cords brought together over a pulley at D, and to any suitable securing device, c, on the windowframe; hence takin g hold of the two cords and drawing' down will raise the roll and pulley, and loosing the two cords will allow the pulley and cord to drop. To this extent this fixture is not new.

ln operating, it is desirable to raise the shade without rolling, and also that the curtain may be drawn down without lowering the roll. 'lo do this it is necessary that the pulley should revolve independent of the roll, but should engage the roll when running down, and that, in rising, the halya-rd-plate should en gage the roll, so that it will not revolve with the pulley. To do this afriction upon the roll is necessary, sufficient to counterbalanee the weight of the shade. le place a disk, G, formed from sheet metal, of a concavo-eonvex form, against the end et' the roll, which is prevented from revolving with the roll by a square sleeve, d, and

through this sleeve the adjusting-screw is set, bearing the pulley against the disk, so that, it' the pulley is held to prevent its rolling, the disk is held accordingly, and the friction upon the end of the roll is su'ltieient to prevent the weight ofthe shade from turninthe roll. Onto this sleeve and next the disk G a flat collar, I, is placed, and next to this a ratchet, e. Over this ratchet the halyardplate F is placed, the halyard-plate F bein g of the same thickness as, or a little less than, the ratchet. The opening' through the halyard-platc that allows it to set over the ratchet is of such size that the ratchet will turn freely therein, as denoted by the arrow in Fig. (i 5 but when turning in the oppo site direction, as in Fig. 5, will engage atooth or notch, n, formed in the opening. Outside this halyard-plate another collar, L, is placed, the diameter of the two collars being larger than the opening in the halyardplate, so that the two collars serve to retain the halyard-plate in place, and yet allow its free working. Outside this eollar, in a convenient position, a sec ond ratchet, f, is placed upon the sleeve, as seen in Figs. 3 and 7, and over this ratchet, between the collars m ym, the pulley is set, the opening through the pulley being similar to that described in the halyard-plate, so that the pulley will revolve in the direction of the arrow, free and without effect upon the ratchet,

2 Maceo but, turning in the opposite direction, notches t, more or less in nuinber, will engage one or niore ot the teeth in the ratchet, as denoted in breken lines, Fig. 7, and when thus engaged the friction-plate Gr will be turned with the pulley, and the roll also turned; hence, when drawing up on the cords a b to raise the roll, the pulley will revolve in the direction of the arrow and t'ree from the roll, and the shade will be raised bodily without rolling, and will be held in any convenient position by the levice c or otherwise, and when thus held, if the shade B be drawn down, by taking hold of the shade the roll must revolve. In order to prevent the pulley from ruiming down by such pulling, the ratchet c engages in the halyard plate, as seen in Fig. 5. This brings the strain ot the pulling entirely upon the halyard-plate and the cords attached. Then, it desired to wind the shade upon the roll, loose the cords (I l) and allow the roll to fall, in doing which the pulley revolves in the opposite direction to that denoted by the arrow in Fig. 7, and engages the ratchet j" and causes the roll to revolve and wind thc shade thereon as it descends. The other ratchet c at the saine time revolves, as denoted in Fig. (i, freely within the halyard-plate. Drawing upon the cords oy I) the pulley revolves, as denoted by the arrow in Fig. 7, and its revolving has no eiect upon the roll. The screw Ilt'ornisthebearing within the sleeve, upon which the roll turns. The frietiolrplate (i-lr may, by ineans ot' the screw, be pressed with greater or less force against the roll to increase or diminish the friction.

The pulley (l is t'ornied sheet nieta-l struck into forni, as seen in Fig. 3, joined at their center in the line z z, so as to make a groove upon their periphery. The periphery or groove is corrugated, as seen in section in Fin'. 4, the corrugation being formed in each part by shape the two parts. signed to prevent the on its cord.

Vile 'claim as our inveutiond l. The combination of the friction-plate G, the pulley and its ratchet, with the square or angular shaped sleeve d, substantially as set forth.

2. rEhe combination of the ratchet fand the pulley C, the pulley constructed with teeth or notches t, corresponding to the teeth of the ratchet, as specitied, so as to forni the bearing thevdies, which strike up and This corrugation is def slipping of the pulley upon which the said pulley revolves freely in.

one direction and engages in the reverse direction, substantially as described. f

3. In combination with the pulley and roll ol a curtain-fixture, the halyard-plate l?, with the ratchet e within the said halyard-plate, the said plate F constructed with teeth or notches n, corresponding to the teeth of the ratchet, as specified, so as to turn fre-ely therein in one direction and engaging in the other direction substantially as and for the purpose set forth.

(l HAUNCE Y BUCKLEY. LODOXYI *K L. SAVYER.

(tnesses A. J. Trnnirs, ll. Snmrwm.

from two disks ot

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