has been displaced by any other make of turbine, which gave
better results for the water used. In 1881 he again commenced
experimenting to find out how much water could be put through a wheel
of given diameter. After making and testing several wheels it was
found that the amount of water with full gate drawn named in tables
found in Burnham Bros.' latest catalogue for each size wheel yielded
84 per cent. and that the water used with 7/8 gate drawn yielded the
same percentage (84), or with 3/4 gate 82 per cent., 5/8 gate 79, and 1/2
gate 75 per cent. A patent for the mechanism was applied for and
granted March 27, 1883, and named Burnham's Improved Standard Turbine.

It was found that the brackets with brass rollers attached, to prevent
the gate from rising and tilting and rubbing the curb, soon wore and
allowed the gate to rub against the curb, and he experimented with
several devices of gate arms. While so engaged he found that the great
weight of water on the top of the cover sprang it, causing the sleeve
bearing on the under side of the cover to be thrown out of place, and
the gate pressed so hard against the case that it was almost
impossible to move it, and after thoroughly testing with the different
devices of gate arms, application was made and patent granted for
adjustable gate arms, also for the new worm gate gearing May 1, 1888,
and named Burham's new improved standard turbine.

This he improved and patented May 13, 1890, to run on horizontal
shaft.

In the year 1872 he had two patents granted him for improvement in
water wheels, but never had any wheels built of that pattern. After
completing and patents granted for his new improved Standard turbine,
he was perfectly satisfied, and often remarked, "I cannot improve on
my register gate turbine any more, as it is as near perfection as can
be made," and he was fully convinced, for the past year he was
experimenting with a cylinder gate turbine, and patent was granted
Oct. 21, 1890. Previously he had made a 24-inch wheel, which was
tested Aug. 14, 1890, at Holyoke testing flume, and gave fair results,
and at the time of his demise he was having made a new runner for the
cylinder gate turbine, which we will complete and have tested. His
idea was to have us manufacture and sell register and cylinder gate
turbines. His inventive powers were not confined to water wheels, for
on Feb. 23, 1886, patents were granted him for automatic steam engine,
governor and lubric