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A Dolbeer Horizontal Capstan Steam Donkey using the 1862 Patent drawing and the Armitage drawings of a similar machine, scale 1"=1' and figure it out as you go along. I have just tracked down a set of drawings for for the similar machine at 1"=1' so I know have some idea of the details. I have...

I have a problem with lead screw on a Super 7 I am coaxing back into life and found the following while searching 09-30-2009, 10:38 PM #5 John S Join Date: Apr 2008 Posts: 598 Liked 47 Times on 44 Posts Default Re: Myford Super 7 Crossslide Woes Dick, Last week I converted a non...

Hi If I make a steam engine and follow the plan for these dimension :- 1The cross head. 2 The crank throw. 3 The eccentric. Can I make the connecting rod and valve rod a multiple of the original (i.e twice as long, three times etc) and keep the timing the same? Ken

I have a 3-phase motor wired in Delta running from a 230 volt single phase to 230volt 3-phase inverter. It runs clockwise but I want it to run anti-clockwise. I read that to reverse the motor you swap two wires! Which two out three U, V and W? I think it is U and V but I am not sure. Ken

I have a Pultra 1590 lathe it came with the original four jaw chuck, three jaw chuck c/w five sets of jaws, two face plates, the Mardrive to suit but only two collets. Information for this lathe is rather limited and I hoped that somebody might be able to help me with the following:- The thread...

I am renovating a Pultra 1770 lathe and Mardrive bench drive unit. The oil cups need replacing. The third pulley (lower one that drives the final pulley that drives the lathe) has been removed and replaced without the key and nut, I have found the key and nut in the assortment of bits that came...

I have just aquired a Pultra 17-70 lathe. Can anyone tell me what thread is used in the stud holes on the bottom of the chip tray, for mounting the lathe to a bench? Ken

I am making a Steam horizontal capstan Donkey engine working from the Dolbeer patent application drawings and an Armitage drawing of a 1895 period Dolbeer Donkey engine. The Alexander Scale Models HO 7900 Dolbeer Donkey Engine Kit (Circa 1882) shows a horizontal cross slide/piston...

Hi all I became interested in repairing clocks as a hobby in retirement. My horizons have broadend I would like to make a model of Dolbears horizontal steam donkey logging engine as per his 1882 patent application drawing. The 4L group on Yahoo have been very helpfull with information To...

Hi I am after a copy of the above magazine with the "Perseus" drawings pull out. I have all the Edgar. T. Westbury articles and the "Theseus"drawings, but would also like a copy of the "Perseus" drawings. Has anybody got a spare copy? Just the drawings would do. Ken