Petrie and Martin developed an air-powered water pump to pump water out of their atmospheric diving suits.
They claim as new and desire to secure by Letters Patent
1. The combination with a diving suit or apparatus, of means connected with the legs and operating to expel the water from the said suit.
2. The combination with a diving suit or apparatus, of an auxiliary casing outside the suit and supported thereon, and means located in the auxiliary casing for discharging water from the suit.
3. The combination with a diving suit or apparatus, of a pump located thereon, and a connection by which the pump lifts and discharges the water from the apparatus.
4. The combination with a diving suit or apparatus, of a pump located thereon and having intake-pipes connecting with the lower extremities of the apparatus, and a discharge pipe delivering outside the apparatus.
5. The combination with a diving suit or apparatus, of a pump located on the body portion thereof, the said pump having intake pipes extending to the lower portions of the diving apparatus, and a discharge-pipe delivering externally of the apparatus.
6. The combination with a diving suit or apparatus, of a pump located on the back of the said apparatus, the pump having intake pipes extending into the legs of the apparatus, and a discharge-pipe delivering externally of the apparatus. The combination with a diving suit or apparatus, of a casing located on the body portion thereof, a pump contained in the casing, an intake for the pump connecting with the interior of the apparatus, and a discharge for the -Dump delivering externally of the apparatus.
8. The combination with a diving suit or apparatus, of a pump located thereon, said pump having connections to discharge water from the apparatus and having its exhaust delivering into the said diving apparatus.
9. The combination with a diving suit or apparatus, of a casing located thereon, an airpump in the said casing, pipe connections by which the pump discharges water from the lower part of the apparatus to a point externally of the apparatus, and means for exhausting the air from the pump into the said suit or apparatus.
10. In an apparatus of the kind described, the combination with the pump, of an expander connected to the exhaust of the pump, said expander having overlapping baffle-plates or flanges to retard the discharge. of air. The exhaust -expander comprising a casing having an inlet and discharge, and a series of overlapping baffle-plates or flanges located between the intake and discharge.
12. The herein-described expander having Ian intake and discharge, and a series of concentric flanges or baffle-plates projecting inwardly from opposite walls of the expander so as to give a zigzag course to the fluid passing through the expander.
13. The herein – described expander comprising a casing having an inlet and discharge, concentric plates or flanges projecting inwardly from the opposite walls of the casing-, and concentric bosses opposite the inner edges of the said baffle-plates or flanges. t4. The herein – described expander comprising a two-part casing, one part having an essentially central intake and the second part having peripheral discharge, and concentric overlapping flanges projecting inwardly from the two walls of the casing.
ENOS B. PETRIE. JOSEPH E. MARTIN.
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