Vintage flat belt drive Tyzack mortiser

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sion.dovey

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I found this on the ebay late last year, and drove about 200 miles each way to collect it, i'm very pleased with it, it's a delightful little machine, fairly complete and i'm just about to commision it. I'm not going to restore it, i like its current patina, it looks very originial to me and generally it seems to be in excellent condition. I wonder if anybody may be able to help with putting a date to it, whether it may appear in anybodys old catalogues and if anybody might be able to provide images of the parts it is missing; the vice end boss and the belt shifter lever.

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Here are a few details of it being rebuilt after dismantling to bring it in.

This is a close up of the dovetail slides machined into the cast body itself. All the machining on this machine was done with either a shaper or planer.
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The the underside of the lower part of the cross slide.
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The top part of the cross slide in place, all is in excellent condition, quite simply made but very nice.
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Detail of the vertical slide arrangement on the column, showing the quadrant gear that engages the rack on the back of the vertical slide.
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More detail of the vertical slide on the body, showing a number stamping on the body, i assume to match parts up in the factory. You can clearly see the single point tool machining marks.
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The vertical slide itself, you can clearly see the matching number stamped on this part too.
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More detail of the back of the vertical slide, ready to fit.
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The vertical slide fitted, along with the nice forged handle.
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The counterweight, clamps onto the handle to give just the right amount of balance. A nice view of the little brass plate. This is the only evidence of a name on the whole machine, though i suspect Tyzack were not the makers, but suppliers. Perhaps somebody else might have more idea?
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The top drive system in place, and also the hollow chisel holder too.
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Close up of the chisel holder:
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Detail of the top drive pulley:
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Rear view of the idler pulleys, showing the nice simple adjustment mechanism to get the belt to track properly.
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The bottom drive pulley in place, complete with fast and loose pulleys.
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The belt shifter mechanism, it is so rare in my experience for this to be intact, sadly is missing its correct lever here though.
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The complete machine:
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Does anybody know anything about the Tyzack firm as machinery suppliers or manufacturers?

The only references to the company i have found on the net are on vintagemachinery.org and lathes.co.uk.

The Vintage machinery website http://vintagemachinery.org/mfgindex/detail.aspx?id=3229 states that the company changed their name from '& son' to '& sons' in 1905; this machine is '& son' on the badge.

On the Lathes.co.uk website http://www.lathes.co.uk/zyto/ there are a couple of advert reprints, one from 1927 giving the company address as '341 to 345, Old St., London, E.C.2'. And another which gives the similar address '341, 343 & 345, Old St., London, E.C.1', which dates from 1939.

This machines badge gives the address as 'S. Tyzack & Son Ltd, 341 to 345, Old St, London. E.C.1'

Any help or ideas would be greatly appreciated.
- sion
 
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