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Though it had to encounter some of the ridicule with which new methods of working are usually received, and for a time was spoken of in derision as "Maudslay's Go-cart," its practical advantages were so decided that it gradually made its way, and became an established tool in all the best mechanical workshops.
The guard should be large, else the disc may stretch in the central hole until it comes over it; but the guard should not permit too much lift of the valve, else a good deal of the water and air will return into the pump at the return stroke before the valve shuts. Penn's guard is rather small, and Maudslay's permits too much lift. Q. What is the proper area through the valve gratings?
"By all means," said he; "bring them to me tomorrow at twelve o'clock." I need not say how much pleased I was at this permission to exhibit my handiwork, and how anxious I felt as to the result of Mr. Maudslay's inspection of it. I carefully unpacked my working model of the steam-engine at the carpenter's shop, and had it conveyed, together with my drawings, on a hand-cart to Mr.
There was a hearty shaking of hands, and many inquiries on either side. "And what brings you to London now?" asked Brougham. My father told him that it was about his son here, who had obtained an important position at Maudslay's the engineer. "If I can do anything for you," said Brougham, addressing me, "let me know.
We are therefore led to the conclusion that Maudslay's invention was entirely independent of all that had gone before, and that he contrived it for the special purpose of overcoming the difficulties which he himself experienced in turning out duplicate parts in large numbers.
Maudslay's most original inventions. It consisted in the employment of a knife-edged hardened steel instrument, so arranged as to be set at any required angle, and its edge caused to penetrate the surface of a cylindrical bar of soft steel or brass.
Maudslay's lifetime was the famous Shield employed by his friend Brunel in carrying forward the excavation of the Thames Tunnel. He also supplied the pumping-engines for the same great work, the completion of which he did not live to see.
The chief object of my ambition was now to be taken on at Henry Maudslay's works in London. I had heard so much of his engineering work, of his assortment of machine-making tools, and of the admirable organisation of his manufactory, that I longed to obtain employment there. I was willing to labour, in however humble a capacity, in that far-famed workshop.
These, as well as the preparation of large models of hulls, embodying the various improved "lines," occupied a considerable portion of the time that I had the good fortune to spend in Mr. Maudslay's private workshop. Mr. Barton of the Royal Mint was quite a "crony" of Maudslay's. He called upon him often with respect to the improvements for stamping the current coin of the realm.
Afterwards he added, "At all events, James, you will find that though there are many dirty roads in life, if you use your judgment you may always be able to find a clean crossing!" And so the good man left me. After an affectionate parting he returned to Edinburgh, and I remained in London to work out the plan of my life. Maudslay's Private Assistant
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