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US Patent: 8,427X
Pumps, guage
Common suction pump
Elijah Whiton - Groton, Middlesex County, MA

USPTO Classifications:

Tool Categories:
industrial machines : pumps


Not known to have been produced


Patent Dates:
Granted: Oct. 02, 1834

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Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. Only the patent drawing is available. This patent is in the database for reference only.

2. For an improvement in the Suction Pump; Elijah Whiton, Groton, Middlesex county, Massachusetts, October 2.

The patentee states that he has made the following improvements:

1st. The barrels of a pump made of steatite, or soap stone.

2nd. A new and useful method of uniting the barrels of pumps, whether of stone or metal.

3rd. A new and useful method of constructing the lower box.

4th. A new and useful method of draining the water from pumps.

A patent was some time since obtained for making a pump chamber of marble, and if that was a good claim, the present one, for the use of soap stone, may be so also; but, if so, we think it must be on the ground of its being a “new manufacture,” and not as an improvement in the pump.

The account given in the second and third of the above items, does not present any thing worthy of particular notice. The fourth is for a contrivance by which it is intended to open both the valves, and thus to allow the water to descend, and prevent its freezing. There is to be a sort of spring catch on the upper surface of the valve of the lower box, which, when the pump handle is raised to the greatest possible height, hooks on to a ring, or other suitable appendage, on the lower end of the piston, whilst, at the same time, a projecting pin opens the valve in the piston, or bucket, and the water necessarily descends into the well, or reservoir.

Other contrivances have been made to accomplish this last mentioned end; the patentee, however, has a right to his own plan, if it be new, as we believe it is. There is no claim made, and the object of the patent must, therefore, be inferred from the four points enumerated as constituting the improvements.

Journal of the Franklin Institute, Vol. 15, May 1835 pg. 312.

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