1603. An Electraply quack medical device, according to the manual, it's a "pulsating machine used on the body for its therapeutic action and for administering electrical massage," patent number 1,789,758
1604. A sprocket for a bulldozer or other track vehicle, as seen in this photo of an excavator.
1605. A Revere Tapster beer server, their slogan was "opens as it shuts", since the can was opened by closing the lid, used before the invention of pull tabs:
1606. A Chopper1 axe head, "when the blade enters the wood, the levers swing out, directing the downward chopping force outward and exploding the log apart from the inside".
1607. A wine glass holder that clips onto a plate:
1608. An Atlas tool for working on automotive split rims, patent number 1,704,628:
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Last week's set is seen below, click here to view the entire post.
More discussion and comments on these photos can be found at the newsgroup rec.puzzles. Glenwood Gardens Park