Popular science monthly . B01T6 P/PE SLEEVE © 4 35M5\ BOLT/y£AD LOOSE P/PE SLEEI/E^THPeAD- A clevis lock of simple construction length protects the bolt from beingturned in or out. A small key should be made to fit thehead of the bolt, which must be turnedin at least one-half inch below the top. This lock is secure. There is nodanger of any ones unlocking it withoutthe key made for it.— , B. Sanders. A Handy Bunsen Burner THE need of a portable Bunsenburner is often felt by one workingin the laboratory. The diagram showshow a very handy and useful devicecan be rnade. The fitting from an i
Popular science monthly . B01T6 P/PE SLEEVE © 4 35M5\ BOLT/y£AD LOOSE P/PE SLEEI/E^THPeAD- A clevis lock of simple construction length protects the bolt from beingturned in or out. A small key should be made to fit thehead of the bolt, which must be turnedin at least one-half inch below the top. This lock is secure. There is nodanger of any ones unlocking it withoutthe key made for it.— , B. Sanders. A Handy Bunsen Burner THE need of a portable Bunsenburner is often felt by one workingin the laboratory. The diagram showshow a very handy and useful devicecan be rnade. The fitting from an incandescent gas GAS HOSE- uooo fANDte^. A handy portable gas-burner light may be used for the mixer. Thisis to be extended to a length of 5 fitting a short piece of brass I-in. piece of brass tubing should bescrewed to the other side of the ordinary tool handle is drilled toaccommodate this tube and it is shovedtightly in place, as shown. This tubeaffords an attachment for the gas uses of such a device are is handier than a gasoline torch forsoldering. It may be used for temperingand hardening. Clamped in a retortstand it is of use for many purposeswhere the ordinary Bunsen burner couldnot be used.—Robert Kennedy. A Simple Overflow Alarm A NOVEL device which tells when thepan underneath an ice-box is aboutto overflow is easily constructed. On thebottom side or wall of an ice-box arrangea battery A and bell B. Leave the twoends of wire CC, which is an incompletecircuit, hanging down into the drip-paninto which water drips from the outlet D,above. A wooden fioat is i)laced in
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
