new form of umbrella frame has recently been two concavities are separated by the diaphragm D, invented, in which the ribs and stretchers may be back of which is the usual electro-magnet, EH. The lat- readily detached and replaced, when desired; thus, ter is connected with the binding posts F by… … in the rejuvenation of worn-out files. A piece of port- swivel coupling G. UMBRELLA FRAME WITH in which soap in liquid form is contained. Screwed able apparatus has been recently introduced as part This coupling is DETACHABLE RIBS. to the neck of the bottle is a plug, which supports a of the…
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