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Publication numberUS164464 A
Publication typeGrant
Publication dateJun 15, 1875
Filing dateApr 3, 1875
Publication numberUS 164464 A, US 164464A, US-A-164464, US164464 A, US164464A
InventorsWilliam M. Lanphebe
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in blind-slat adjusters
US 164464 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

UNITED STATES PATENT OFFICE.

WILLIAM M. LANPHERE, OF WATERLOO, TOVVA.

IMPROVEMENT lN BLIND-SLAT ADJUSTERS.

Specification forming part of Letters Patent No. 164,464, dated June 15, 1875; application filed April 3, 1875.

GAsE C.

To all whom it may concern:

Be it known that I, WILLIAM M. LANPHERE, of Waterloo, in the county of Black Hawk and State of Iowa, have invented a new and Improved Blind-Slat Operator, of which the following is a specification:

My invention consists of tubular shafts arranged on the shaft of the blind-opener, to open and close the slats by wheels at the outer end gearing with racks on the blind, which operate the slats by levers and connectingrods, a set of the devices being employed for each section of slats, to work them independently of each other.

Figure 1 is a sectional elevation of a window-frame, and a side elevation of a blind, with my improved slat-operating apparatus; and Fig. 2 is a horizontal section on the line 00 w of Fig. 1.

Similar letters of reference indicate corresponding parts.

A represents the shaft, and B the wheels,

for opening and closing the blind G, on which I arrange the tubular shafts D and E, to work the slats F and G by the wheels G and H, gearing with the racks I and J, which are connee-ted to them, respectively, by levers K and L, the racks being so arranged that they gear with the wheels when the blind is shut, and the shafts being arranged so that only one set of bearings is required, and so that the knobs M, N, and O are clustered together neatly.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination of toothed racks I J on the blind, connected to the upper and lower slats for operating them, with toothed wheels G H on tubular shafts D E in the window-frame for working it, substantially as specified.

WILLIAM M. LANPHERE.

Witnesses:

F. KISTNER,

R0121. O. APLIN.

Referenced by
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US7578093 *Nov 14, 2007Aug 25, 2009Mario M MaroccoShutter with multi-part tilt control bar connector
US20040197434 *Apr 1, 2003Oct 7, 2004Lubberts Robert B.Apparatus for extruding honeycomb bodies
Classifications
Cooperative ClassificationF24F13/15