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Browse Prior Art Database

LEVER APPARATUS

IP.com Disclosure Number: IPCOM000022753D
Original Publication Date: 1976-Jan-31
Included in the Prior Art Database: 2004-Mar-26
Document File: 2 page(s) / 245K

Publishing Venue

Xerox Disclosure Journal

Abstract

An educational device for teaching elementary grade school children the concept of the lever. The apparatus that con~ nects base 1 to sling 2 consists of an ordinary paper clip 3 that has been bent to a specific configuration as shown.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

LEVER APPARATUS ProposedD, J, Gleason Classification

u~s, C~. ~5/l9R mt. Cl. G09b 23/06

An educational device for teaching elementary grade school
children the concept of the lever. The apparatus that con~
nects base 1 to sling 2 consists of an ordinary paper clip 3
that has been bent to a specific configuration as shown.

The paper clip is first pulled open to form an elongated "S."
The larger end of the ~'S" 4 is opened about three~quarters
of an inch to form a hook. The smaller end of the T1S" 5 is
bent out, perpendicularly, at a 90° angle to form an arm.
When the hook is placed flat on a surface, the arm rises
perpendicular to that surface. The hook 4 is then slid over
extension 6 of base 1, and arm 5 provides the support on
which to hang sling 2. In use, a meter stick is placed in
sling 2. The window located in the sling is used to read
that number on the meter stick which represents the fulcrum.
Opened paper clips can be used to attach other paper clips
to the meter stick on opposite sides of the fulcrum, The

MASTER BASE /

SLING 2

Volume 1 Number 1 January 1976 19

[This page contains 1 picture or other non-text object]

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LEVER APPAP~TUS (Cont'd)

children can move the paper clips until the meter stick is
balanced and then measure the distance to both the left and
the right of the fulcrum at which the paper clip weights are
positioned. Thus, elementary school children can learn the
concept of the lever including the various variables that
affec...