US291502A - Roller for curtain fixtures - Google Patents

Description

(Model.)

ZShe'ts-Sheet 1. 4J. B. PINCE.' VSPRING ROLLER FOR GURVTAINPIXTURBS.. No. 291.502.

Patnted Jan I ai@ (Model.) 8 2 sheets-sheen 2 J. B. PINCE.`

SPRING RGLLBR POR GRTAIN FIXTURES. Nol 291,502. Patented Jan. 8, 1884.

i ihnirnn STATS .PATENT trice..

JAMES B. FING-H, OF NEVARK, NEV JERSEY.

seems-ROLLER `FOR CURTAIN-FIXTURES.

. SPECIFICATION `forming part of Letters Patent No. 291,502, dated January 8, 1884. l

Applicnnnnlednprnea,rees. (Moin-.1.) l

` i andl'do hereby declare the following to be afull,

clear, and exact description of the` invention,

l i sue-h as will enable others skilled in the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this speciiication.

The objectof this invention is to prevent a spring-actuated curtain from rolling entirely np when, in the process of raising it or of drawing the same down, it accidentally slips from the manipulators hand, which action on the part of said curtain has heretofore made it necessary to'climb to within reach thereof to gain access `to it and draw it to its required position-a process involving considerable trouble. Y

The invention consists in the arrangements and combinations of parts, as will be hereinafter set forth, and iinally embodied in the claims. l

Referring to the accompanying drawings, embodied in two sheets, in which similar letters of reference indicate like parts in each of the several figures, Figure l is an elevationof a curtain arranged in connection with a springactuated roll. Fig. 2 is an end view of aroller, showing certain detaining mechanism. Fig.

`3 is a sectional view, showing. the same more clearly. Figs. L and 5 are respectivelyT a plan and edge view of a compound detent, or two detents united. Fig. 6 is avertical longitudinal section of aportion of the roll, showing the actuating and detaining mechanism. Fig.

`7 shows a modiiedform of my improvements.

Fig. S illustrates my device when the detention ofthe roll has been occasioned by a slow movement of the curtain, and Fig. 9 illustrates in detail a box carrying certain abutments for the detent. On Sheet 2, Figs. 10, 1l, and 12 illustrato, respectively, a side view of a box, containing modified forms of i the detaining mechanism, a section of the end of a roller containingthe same, and an edge view of a detent.

In carrying out my invention, l construct the roller proper, a, having a spring-chamber therein, and carrying a spring, b, and spindle d, in any ordinary manner, and on the end of the roll is secured, by means of a ferrule7 f, a box, e, which is caused to revolve with the curtain-roll by means of any suitable mechanism, such as the projections g, Fig. 9, which are thrust into the end of said roller. y, Said box e is provided with suitable abutinents for the detent, as will be set forth. Hthin said box is arranged suitable detaining mechanism adapted to detain the curtain when the same is being rolled up either slowlyor rapidly. Said detaining mechanism consists in a sliding compound detent, mia, arranged to work either around the spindle d, as shown in Fig. 7,7through the same, as in Figs. 2, 31, and 6,

vat one side of the spindle, as in Fig. l1, or

otherwise, thelast particularized arrangement being, from its simplicity, preferred. Said detent is constructed to engage at either of its ends with abutments or holding-surfaces on the box c, which abutments may be formed by cutting or making slots h 'i in the wall of the box, h being to cooperate-with the upper extremity of the detent, and il to receive the lower extremity, a. Said slot and detent are so arranged as that the lower extremity 0f said detent will not fall into the slot 7L, (or otherwise engage with the abutment for the upper detent,) but will be inoperative in its relation thereto. i This is effected by arranging the extremities of said detent out of a vertical line, as shown in Fig. 6, or it may be attained in any other way. On'a'slow upward movement of a hanging curtain, occasioned by the recoil ofthe spring b, the lower extremity of the detent gravitates into one of the openings i, and is held` by engagement with the abutment thereof. When the curtain is again lowered, an incline, s, on the detent strikes a lug, projection, or, vas in the case illustrated by Figs. Zand 3, a side portion of a staple or loop, r, said lug, staple, or projection being arranged on a plate or portion, t, secured to, arranged on or which is integral with the spindle. 'lhe engagement` of the lug or loop r with the inclined portion of the detent causes the latter to rise when the perforated or slotted box throws said detent tow-ard said lug or projection, as will be understood. A more rapid ICO upward movement ofthe curtain caused by a moderately-quick revolution of the roll is not hindered or-prevented by portion or detenta entering the slot i, as said detent will not have sufficient time to make a holding-engagement. A quick revolution of the roll, caused when the action ofthe spring is not trammeled by the weight of the hand, as when the curtain slips from said hand and tends to fiy to the top ofthe window, is immediately checked by mechanism, as follows: Upon the inner surface of the box slightly projects a lug, on, which in its'passage with the roller strikes the lower extremity of the detent7 throwing it up into the longer slot h, and causes it to engage l withthe abutment therein before said detent can again fall. By drawing the curtain with the, hand, said detent will, by its own weight, fall and allow a moderate upward movement of the curtain.

It will be observed that my device provides .mechanism for checking slow revolution of the curtain-roll, and, in addition, other mechanism for checking quick revolution, moderate revolution being unobstructed; but as I am aware that the-same results can be obtained by considerably modifying the construction shown andparticularly described-as, for example, making the combined detents herein shown in separate and independent pieces-I do not wish to be understood as limiting myself thereto.

Having thus described my invention, what I claim -as new is- 1. In combination, the spring-actuated cur- 35' tain-roll, the compound detent having the in oline s, the box e, having abutments for said detent, and an inwardly-projecting lug, m, the plate t, and projection 1', all arranged and operating substantially as herein set forth and 4o shown.

2. In combination, the spring-actuated curtainroller, carrying the boxe, having the slots 7L z', with inwardly-proj ecting lug m, the detent mn, having the incline s, and lug or projection 4 5 r, all being arranged and operating substantially as and for the vpurpose herein set forth and shown.

3. In combination, in a spring-actuated curtain-roll, the box having the lug Wnadapted 5o to throw the sliding detent into engagement with an abutment on said box, and having an abutment to receive said detentwhen said box is revolving at a slow rateof speed, and a sliding detent having its opposite extremities 5 free to engage with said abutmentsand lug7 substantially as set forth and shown.

4. In combination, the box having the slots h z' and lug m, and the sliding detent, all arranged and operating substantially as and for 6o the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 22d-day of March, 1883.

v J AMES B. FINCH.

Witnesses:

CHARLES H. PELL, JosIAH ALLEN.

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