Retractable sailboat mast

Details Retractable sailboat mast Retractable sailboat mast

1976-05-21

1977-04-12

Blix, Trygve M.

Ships

Spars

Masts and masting

403107, 403109, B63B 1500

Patent

active

040168239

ABSTRACT:
This disclosure pertains to a telescoping mast hingeably and removably affixed at the base portion thereof to the deck of a sailboat. A series of inwardly spring biased spheres engage recesses in adjacent telescoping elements of the mast thereby releasably maintaining the mast in an extended position. Each telescoping section of the mast is provided with a longitudinal slot, used to engage a plurality of outwardly radially extending mainsail securing tabs. Circular or elliptical mast cross-sections may be employed, utilizing a flexible line running over the mast top to raise and lower the mainsail.

REFERENCES:
patent: 8164 (1851-06-01), Brown
patent: 2353662 (1944-07-01), Goldman
patent: 2719688 (1955-10-01), Seifert
patent: 2777692 (1957-01-01), Marzucco
patent: 3092064 (1963-06-01), Benedict
patent: 3507240 (1970-04-01), Butler

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