English and American tool buildersRoe, Joseph Wickham
History
English and American tool builders
Roe, Joseph Wickham
Industrial arts -- Biography; Machine-tools
When Bramah began manufacturing the locks he found almost immediately
that they called for a better quality of workmanship than was
available, with even the best manual skill about him. A series of
machine tools had to be devised if they were to be made in the
quantities and of the quality desired. He turned first to an old German
in Moodie’s shop who had the reputation of being the most ingenious
workman in London; but while he, with Bramah, saw the need, he could
not meet it. One of his shopmates, however, suggested a young man at
the Woolwich Arsenal named Henry Maudslay, then only eighteen years old.
Bramah sent for him and Maudslay soon became his right-hand man, and
was made superintendent of the works at nineteen. The work of these two
men in developing the tools needed laid the foundation for the standard
metal-cutting tools of today. The most important improvement was the
slide-rest. Nasmyth later said that he had seen the first one, made
by Maudslay, running in Bramah’s shop and that “in it were all those
arrangements which are to be found in the most modern slide-rest of our
own day” (i.e., fifty years later). Other parts of the metal-cutting
lathe also began to take shape; it has been said that parts of the lock
were milled on a lathe with rotary cutters, and that the beginnings
of the planer were made. How much of this work was Bramah’s and how
much Maudslay’s it would be hard to say. Bramah was a fertile, clever
inventor; but Maudslay was the better general mechanic, had a surer
judgment and a greater influence on subsequent tool design.
About this time Bramah invented the hydraulic press. As he first built
it, the ram was packed with a stuffing-box and gland. This gripped the
ram, retarded the return stroke, and gave him a lot of trouble until
Maudslay substituted the self-tightening cup-leather packing for the
stuffing-box, an improvement which made the device a success.
Bramah’s restless ingenuity was continually at work. He invented a very
successful beer-pump in 1797, the four-way cock, a quill sharpener
which was in general use until quills were superseded by steel pens,
and he dabbled with the steam engine. He was a bitter opponent of Watt
and testified against him in the famous suit of Boulton & Watt against
Hornblower. He maintained the superiority of the old Newcomen engines
and said that the principle of the separate condenser was fallacious,
that Watt had added nothing new which was not worthless, and that his
so-called improvements were “monstrous stupidity.”
Public-domain text, read in full here on John Shaqi.
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