US179008A - Improvement in shade-cord retainers - Google Patents

Improvement in shade-cord retainers Download PDF

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Publication number
US179008A
US179008A US179008DA US179008A US 179008 A US179008 A US 179008A US 179008D A US179008D A US 179008DA US 179008 A US179008 A US 179008A
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United States
Prior art keywords
shade
plate
improvement
pin
cord
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Expired - Lifetime
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems
    • F16B7/105—Telescoping systems locking in discrete positions, e.g. in extreme extended position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0889—Path of movement of the finally actuated member
    • F16H2007/0891—Linear path
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32426—Plural distinct positions
    • Y10T403/32442—At least one discrete position
    • Y10T403/32451—Step-by-step adjustment
    • Y10T403/32459—Retainer extends through aligned recesses

Definitions

  • N-PEIERS PHOTOLITHOGRAPHER
  • WASHINGTUN D Cv "UNI ED STATES.
  • the object of my invention is to so construct a retainer for the winding-cords of window-shades that the retaining-plate may be prevented from slipping; and this object I attain in the manner which I will now proceed B the retainer, thelatter consisting of a plate having a zigzag slot, a, formed by projecting fingers m on the plate. To this slot is adapted the shank of a pin, 1), in the window-frame, this pin having a suitable head to prevent the outward withdrawal of the plate.
  • each finger is provided at the end with an enlargement, so that it cannot slip from the pin.
  • the slot terminates at'each end in an opening, 6, slightly larger in diameter than the head of the pin 1), in order that the-plate B may be slipped over the same in applying it to or removing it from the frame.
  • the lower end of the plate B is bent outward, for facilitating its manipulation, and the upper end of said plate has a knob or pulley,f, around which the windowcord passes. When the cord becomes slack, the plate B is depressed until an upper finger is brought beneath and retained by the pin.
  • I claim as myinvention I The combination of the pin 1), attached to the window-frame, with the plate B, having a zigzag slot, a, formed by fingers m, each projecting into the recess between adjoining fingers on the opposite side of the slot, substantially as shown and described.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

R. W. FITZELL.
SHADE-CORD RETAINER.
N o.179,008. Patented June 20,1876.
N-PEIERS, PHOTOLITHOGRAPHER, WASHINGTUN D Cv "UNI ED STATES.
PATENT QFFICE.
ROBERT W. FITZELL, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN SHADE-CORD RETAINERS.
Specification forming part of Letters Patent N0. l79,008, dated June 20, 1876; application filed April 19, 1876.
To all whom it may concern: I
Be it known that I, ROBERT W. FITZELL, of Philadelphia, Pennsylvania, have invented an Improved Shade-Cord Retainer, of which the following is a specification The object of my invention is to so construct a retainer for the winding-cords of window-shades that the retaining-plate may be prevented from slipping; and this object I attain in the manner which I will now proceed B the retainer, thelatter consisting of a plate having a zigzag slot, a, formed by projecting fingers m on the plate. To this slot is adapted the shank of a pin, 1), in the window-frame, this pin having a suitable head to prevent the outward withdrawal of the plate. The upper edge of one or other of the fingers m bears against thispin', and each finger is provided at the end with an enlargement, so that it cannot slip from the pin. The slot at terminates at'each end in an opening, 6, slightly larger in diameter than the head of the pin 1), in order that the-plate B may be slipped over the same in applying it to or removing it from the frame. The lower end of the plate B is bent outward, for facilitating its manipulation, and the upper end of said plate has a knob or pulley,f, around which the windowcord passes. When the cord becomes slack, the plate B is depressed until an upper finger is brought beneath and retained by the pin.
There have heretofore been made windowshade retainers in which a pin or button is adapted to notches in a plate, but this plate has been so constructed that whenever the pin slips out of one of the notches the parts become disengaged and the'shade falls. By making each finger m project across into the recess formed between two adjoining fingers on the opposite side of the slot to, as shown, should the pin slip over one of the fingers it will inevitably be caught on the next and the retainer continue to sustain the shade.
I claim as myinvention I The combination of the pin 1), attached to the window-frame, with the plate B, having a zigzag slot, a, formed by fingers m, each projecting into the recess between adjoining fingers on the opposite side of the slot, substantially as shown and described.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
' ROBERT'W. FITZELL.
Witnesses:
HARRY HowsoN, J r., HARRY SMITH.
US179008D Improvement in shade-cord retainers Expired - Lifetime US179008A (en)

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