A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A light-weight holder for the handle of an umbrella includes a cup at the top of an extendable shaft. The extendable shaft may include an inner rod within an outer tube, with a friction lock between the rod and the tube. The relative position between the rod and the tube is infinitely adjustable. The bottom end of the tube includes plurality of slots arranged to receive an outwardly extending adjustment means, which also serves an a depth gauge for an anchor pin. The anchor pin extends through a lower bushing in the tub, and terminates in a tapered tip.
A light-weight holder for the handle of an umbrella includes a cup at the top of an extendable shaft. The extendable shaft may include an inner rod within an outer tube, with a friction lock between the rod and the tube. The relative position between the rod and the tube is infinitely adjustable. The bottom end of the tube includes plurality of slots arranged to receive an outwardly extending adjustment means, which also serves an a depth gauge for an anchor pin. The anchor pin extends through a lower bushing in the tub, and terminates in a tapered tip.
Extendable Umbrella Stand
DAVID SR WILSON (author)
2015-12-03
Patent
Electronic Resource
English
IPC:
E04H
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