US86933A

US86933A - Improved curtain-fixture

Info

Publication number: US86933A
Authority: US
Publication date: 1869-02-16
Anticipated expiration: 1886-02-16

Description

@met MM5-@Ww MOSES S. MARSHALL, OF SOMERVI LLE, M'A SSA'C'HUSETTSASSIGNOR TO" BOSTN CHAMPION liITURE Letters Patent No. 86,933, plated Februa/ry 16,1869.

nupnovnn CURTAIN-FIXTURE.

The Schedule referred to in these Letters Patent and making part the sama.

To all whom. it may concern.- v

Be it known that I, MosEs S. MARSHALL, of Somerville, lcounty of Middlesex, and State of Massachusetts, have invented lcertain Improvements in Curtain-Fixtures, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in'\vhich- Figure 1 represents a Icomplete fixture, with a curtain wonnd upon the case, which is held in brackets attached to a window-frame.

`Figure 2 is a longitudinal sectional view. of the complete fixture. v

Figure 3 shows a spindle, which runs through the case, and upon which is wound a spring attached to spindle latl? and head-,piece I.

Figures 4 and 5 show my specific improvements.

My invention relates to that classof-curtain-Jixtures where the weight is dispensed with, and the curtain rolled up by theaction of a spring. But the objections which arise in operating a ixture of this kind, and in removing it from its brackets, as well as the constant wearing out of tape, which is. used in some, and the inconvenience which is occasioned by the-liability of the spring to unwind when. the fixture is being removed from the brackets, have led to my invention.

My object is to overcome the ordinary difficulties, and todo so, I use a latch and pawl combined, which hold the spring from unwinding, and keepthe curtain at any4 height.

In the drawings- A is a hollow casing of wood, or any suitable material, and upon which the curtainl is fastened by ordinary methods.

D is a spindle, upon which is wound the spring U, the spring and spindle being placed within the casing A.

'7c is a crooked latch, secured to one side of the spindle D. k is shown in iigs. 4 and 5.

e is a pawl, having a catch-point, m.

The pawl is fastened to the end of casing A, at screw g. l

The pawl e has a lip, c, thrown out to one side, which lruns close to the spindle D when the casing is revolving, and prevents the pawl from falling completely over, and by the lip c being thrown -to one side, as shown, the crooked latch kis allowed to clear it without being impeded. l

Now, to operate the future, the spring C must be wound up, by means of turning the spindle D at a, at'.

the same time the curtain isA rolled upon case A.

The fixture is then placed in brackets'L, the spindle D being held in position, by means of theA projecting end being dat, as shown 'at b, and the slot o, in the bracket on that side, being made to hold the'spindle,

to bring theflatch lo upon the upper side.

The spindle is held down by pin p.

H is-a cord attached to the curtain, for conveniently operating it.

llVhen` the curtain, by the cord, -is-drawndown, the movement brings the latch k against the pawl e, thereby throwing the pawl up, but not over, as the lip c runs against .the spindle D and prevents. Therefore, there is no obstruction to drawing the curtain down to its full length.

To let the curtain back, that is, to roll it up again, draw the cordv H sufficiently to disen gage thepawl from v the latch, and then let the curtain up quickly, when the centrifugal motion thus given the pawl prevents inl-:esame from engaging withdatch k,"and,' by meansl vof lip c, is also prevented from being thrown overl To keep the curtain at any desiredheight, all that is p case is turned one-quarter round against the spring.

Thus I secure-the spring in a rm position, without liability to unwind, either in removing the xture from the brackets, or in operating it, and the curtain is coni trolled at any point without weights, and without using tape, which wears out ina sgort time.

I disclaim the `use of thecase A, spring O, and spindle D, as described, asthey are old, and embodied in other patents. What I claim as my invention, and desire to secure by Letters Patent, isy The coinbinationof pawl e with catchm, crooked latch 7c, which is secured to spindle D, atb, and lip c,

when applied to regulating .and operating a curtain-fix- 'y ture, as described and specied.

In. testimony whereof, I have signed my name to this speci'dcation, in the presence of two subscribing wit- MOSES S. MARSHALL. Witnesses:

CARROLL D. WEIGHT,

R. W. CARPENTER.