email: tony@lathes.co.uk
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HARRISON LATHES
14, 16 & 17-inch Accessories
Manuals are available for most Harrison lathes
Flat-belt Drive L2   An Original L5
Harrison Home Page   L5 Early Model   Later L5 9" & L5A 11-inch"   140   
L5 Accessories   
10-inch   Late 10" & 12" L6   Early 12" L6     Late L6 Mk. 3   
13" & 15" Late Models    13"   14"   16"   17"    Hydraulic Copy Lathes
Harrison Union Lathes   Models 155 and 165   Model 190
14", 16" & 17" Accessories
Newer Models
:
AA-10 VS  VS330 & AA   M250   M300   M350 & 390   M400   M450   M500   




Hydraulic Copying Unit in use on an 11-Inch Lathe of 1961

11-Inch Harrison lathe with Hydraulic Copy Attachment

Plan view of the Hydraulic Copy Attachment mounted on an 11-Inch lathe.

12-Inch of 1966 lathe fitted with a factory-installed hydraulic copying unit.

Much more heavily built the 13-inch version carried its motor inside the cabinet, had a distinctive, flat-topped headstock and a combined clutch/brake control protruding near the lathe bed at the bottom right-hand corner of the screwcutting gearbox. In this application, instead of being fastened to the stand, the Hydraulic pump and tank are shown as separate units.       




An 11-inch swing Harrison fitted with a separate Hydraulic Pump and Tank at the tailstock end of the bed - the long rectangular tank fastened to the back of the lathe was for coolant.  The 11-Inch lathes had their motors mounted externally; the 12-inch and 13-inch versions carried theirs inside the stand on a hinged plate.

An 11" inch swing L5A Hydraulic Copying lathe fitted with its distinctive "chuck" guard. The layout of the switches on the electrical control panel indicate that this particular machine was fitted with a two-speed motor.

A rear view of the 13-inch lathe.

Rear view of the 13-inch lathe with a "first-off" component being used as a template between the mounting centres

A flat template holder, complete with micrometer adjustment, was available as an extra - but only on the 13-inch lathe.

Dimensions and turning times of sample jobs able to be machined on a Harrison Hydraulic Copy lathe.

Travelling Steady.
Like other Harrison lathes the top slide could be rotated 360 degrees on the cross slide, which was of the "short" type, with protective tin covers over the front and rear potions of the cross-feed screw; however, instead of the expected superior-type of tapered gip strip on the cross slide, an ordinary flat inset was used, adjusted by pusher screws.

Fixed Steady

Indexing 4-way toolpost




email: tony@lathes.co.uk
Home   Machine Tool Archive   Machine-tools Sale & Wanted
Machine Tool Manuals   Catalogues   Belts   Books  Accessories

Harrison Lathes
11-inch, 12-inch & 13-inch Hydraulic Copy Lathes
A manual is available for this lathe
Flat-belt Drive L2   An Original L5
Harrison Home Page   L5 Early Model   Later L5 9" & L5A 11-inch"   140   
L5 Accessories   
10-inch   Late 10" & 12" L6   Early 12" L6     Late L6 Mk. 3   
13" & 15" Late Models    13"   14"   16"   17"    Hydraulic Copy Lathes
Harrison Union Lathes   Models 155 and 165   Model 190
14", 16" & 17" Accessories