James Semple Kerr 1932-2014
Dr James Semple Kerr died on Wednesday. Today I have spent a little time with the biography he wrote of Joan, his wife and partner. It was a pleasure to read it again—sad, but still a pleasure because it is so imbued with Jim’s wry observation and clarity of thought. I can hear his voice as I read it.
What’s in a ballet shoe
Dancers and makers talk about pointe shoes, in this fascinating documentary.
In the course of some work I have been doing lately, I have been seeing a lot of railway sleepers. I can’t look at them without thinking about the work of cutting, carting and installing them.
I have a sleeper-cutter’s broad axe. Picking it up is a good way to remind myself how sedentary my life is, and how soft the skin on my hands.
In Sheffield (once the great centre of cutlery manufacture) the person who assembles and adjusts scissors is called a putter-together, sometimes putter-togetherer, often shortened to putter. It takes years to develop the skill and judgment to do this job really well.
In this video we see Cliff Denton at work. He is a putter at Ernest Wright & Sons Ltd, one of the few Sheffield businesses that still makes high quality scissors in the traditional way.
John Smeaton, on working solo
I am committed to Continuing Professional Development. I try to keep up with the current technical literature. Just now, reminded by John Smeaton’s birthday, I have been re-reading his account of the design and building of the third Eddystone Lighthouse. It’s a big book, full of fascinating detail. He wrote it at the end of his long career, as he looked back on his most celebrated project.
He explains why he chose to work on his own during the early stages of his work. He was stuck in London between meetings with various important people, as he grappled with the problem of securing the lighthouse tower to the wave-swept rock:
It seeming therefore to be a first principle, to cut the rock as little as we could help ; and for this end, to humour its irregularities as far as we could, so as to get a firm fixing for our work ; on this account it appeared necessary, as the first step to be taken (from the dimensions already obtained, and by the methods already specified) to construct a complete Model of the rock, in the condition I found it : which being done, a second model might then be formed, shewing to what the rock was to be reduced, with the manner of applying the work of the building thereto ; and so as to describe the external general form, which would be the whole of what was then wanted, for present determination ; and for adjusting the work of the approaching season. These models I determined should be the work of my own hands ; and this I foresaw, must in its own nature be a work of Time.
THOSE of my readers, who are not in the practice of handling mechanical tools themselves, but are under the necessity of applying to the manual operations of others, will undoubtedly conclude, that I might have saved much time, by employing the hands of others in this matter : and on the idea of the design being already fixed, and fully and accurately, as well as distinctly made out; that is, supposing the thing done, that was wanted to be done, it certainly would have been so: and had I wanted a duplicate of any part, or of the whole, when done, I should certainly have had recourse to the hands of others. But such of my readers, as are in the use of handling tools, for the purpose of contrivance and invention, will clearly see, that provided I could work with as much facility and dispatch as those I might happen to meet with and employ, I should have all the time and difficulty, and often the vexation, mistakes and disappointments that arise from a communication of one’s own ideas to others; and that when steps of invention are to follow one another in succession, and dependance on what preceded, under such circumstances, it is not eligible to make use of the hands of others.
I had also a further reason for undertaking this part of the work myself ; which those who shall peruse this account for the sake of information, may not be displeased to know.——I have always found in subjects of mechanical invention and investigation, that I can seldom form an original idea so complete, but that by laying it down in its proper dimensions on paper, I could very much mature and improve it ; and where the subject is attended with intricacy, it is in a greater degree necessary : but in reducing this to a solid, as is the case in making a model, still further corrections and advantages will often present themselves, that did not appear upon Paper : and this is in a much more eminent degree when the solid is produced from a drawing by the artist’s own hand, than by the hand of another : and still further improvements will occur, by going again over the detail, in constructing the work itself at large. Therefore to avail myself of all possible advantages of previous light and information, I determined, from the paper materials that I had brought from Plymouth ; as well as those I carried thither ; at once to construct the models above-mentioned myself…
[John Smeaton, A narrative of the building and a description of the construction of the Edystone Lighthouse with stone … (London: G Nicol, 1793) Book II, Page 70.]
I’m pleased to discover that one of Smeaton’s models is in the museum in Leeds, his home town.
John Smeaton’s birthday
Let us take note that John Smeaton, the English civil engineer, was born in Leeds on this day 290 years ago.