The Diving Machines collection of mid-1900's hand-operated American shallow water hard hat diver's pumps include the Morse #15, Miller Dunn and Diving Equipment & Supply Co. systems. These heavy all brass pumps have two reciprocating cylinders mounted astride a vertical or horizontal support with pivoting rocker arms. A steel handle used at the top of the rocker is pushed back and forth actuating the leather ringed piston plungers forcing air up through a non-return check valve and on to the diver's helmet.

Cleveland and Faucet Co Hand air pump Made in Cleveland Ohio USA

 

The New York made Snead two-stage pump provided a higher pressure than most equal cylinder-sized lever pumps. Air from the larger cylinder was compressed down it into a smaller cylinder providing even a greater out pressure for higher pressure applications.

Early US Navy modified hand operated shallow water divers air pump

Single cylinder air pump with volume tank

Rotary Pumps

  

 

Morse two cylinder enclosed rotory divers air pump in green box

  

Morse single cylinder, single wheel divers air pump

US Navy Morse two cylinder rotory air pump enclosed in pine wooden box

Morse hp two cylinder sealed rotory divers air pump

Morse sealed rotory divers air pump

Galeazzi's rotory divers air pump

Morse three cylinder divers rotory air pump

Russian three cylinder rotory divers air pump

Siebe Gorman two cylinder diver air pump

Before

A rusty John Date rotary pump which Diving Machines acquired from an antique dealer in Quebec city Canada. As you can see, it was in need of a complete overhaul. This rare find was oringinaly a working pump in Newfoundland in the early days of helmet diving.

The same John Date pump three months later after receiveing a complete overhaul by Diving Machines.

 

Pump plaques

 

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