Sources, Patents & Bibliography
Every mechanism exhibited in CUTAWAY ATLAS is cross-referenced against public patent records, historical manufacturing catalogs, and academic engineering literature.
US Patent 3,205,863 A — Writing Instrument
Inventor: Nolan Kent Rhoades. Assignee: The Parker Pen Company (Janesville, WI). Filed: Jan 10, 1963; Granted: Sep 14, 1965.
Describes the rotary indexing cam follower cooperating with housing longitudinal ribs and angled ratchet teeth to achieve tip extension and retraction.
US Patent 1,219,881 A — Separable Fastener
Inventor: Gideon Sundbäck (Sundback). Assignee: Hookless Fastener Company (Meadville, PA). Filed: Aug 27, 1914; Granted: Mar 20, 1917.
The seminal patent defining modern metal zippers: identical stamping members with a projecting pocket and projection clamped to flexible fabric cords.
Horological Distribution Mechanism Archive
Primary Reference: Horopedia Foundation ("Distribution mechanism: Swiss lever escapement", "Pallets / Lever", "Escape wheel"). Historical invention by Thomas Mudge (1754/1755), refined in Switzerland by Georges-Auguste Leschot (1838) and Antoine LeCoultre.
Documents the 4-phase detached cycle: locking, unlocking, impulse transfer to the roller jewel, and free oscillation.
US Patent 1,707,570 — Sound Reproducing Apparatus
Inventors: Chester W. Rice and Edward W. Kellogg. Assignee: General Electric Company. Filed: Jan 26, 1925; Granted: Apr 2, 1929.
Established the modern direct-radiator moving coil dynamic loudspeaker, defining the annular gap magnetic circuit, voice coil, and flexible rim suspension.
US Patent 2,784,416 — Flush Valve Ball Flapper
Inventor: J. J. Smith. Filed: 1952; Granted: 1957. Supporting Standards: ASME A112.19.2 / CSA B45.1; EPA WaterSense®; Kohler Technical Guides; Thomas Twyford "Unitas" (1885).
Details the buoyant pocket flapper hinge mechanism and weir crest siphonic draw dynamics.
ASME A17.1 & Otis Technical Documentation
Primary References: Otis Elevator Company ("The Basic Workings of a Lift", "High-Rise Safety Systems"); ASME A17.1 / CSA B44 Safety Code; Historical Otis Safety Hoist (US Patent 31,128, Elisha G. Otis, 1861).
Codifies 1:1 roping kinematics, counterweight sizing, Euler-Eytelwein friction grip, and the flyweight centrifugal governor driving guide rail safety wedges.