These screw form Hoffman Clamp allows added control by a screw type adjustment which allows more or less air or liquid through.
These Dropper Bulbs can be used with pipettes and syringes.
The uncalibrated Specific Gravity Bottle, 25 ml, is made of borosilicate glass with ground stoppers for a precision fit.
These Boston Round Flint Bottles with Dropper Assemblies are made of non-porous glass and autoclavable.
The flame can easily be controlled higher or lower by rotating the ratcheted wick control wheel. The air cap is securely attached to the burner by a matching polished chain. Dimensions: 3.5" tall. 2.75" in diameter. 150ml capacity.
The Two Way Burner Stand is ideal for use with alcohol burners. The base is made from 3/16" stainless steel rod with a plated steel mesh top. Stand can be used in either high or low positions.
These Hoffman's clip are nickel plated screw compressor clamps.
This is for showing A.C. on an oscilloscope or meter or for demonstrating the use of a dynamo in lighting a lamp. This apparatus has a cycle dynamo mounted on a base. Two 4mm socket terminals are provided for the dynamo output, connected in parallel with an M.E.S. lamp holder and 2.5V bulb.
