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Identify your Lathe

The Complete list of lathes is not completed yet and is an ongoing project if you can not identify your lathe please feel free to contact us 

 

Identifying the Hercus 9" (Inch) Series

Range of Hercus 9" (Inch) Lathes
The standard range of Hercus lathe is made in 3 basic models, A, B & C. With the exception of feed and thread cutting mechanism all 3 models are identical. All models are available with either plain or roller bearings and standard or long bed series. The Craftsman range of lathes are also avaliable on Models A, B & C and with standard or long bed series. Craftsman machines are made with roller bearings only and feature an enclosed headstock with underneath drive from a drive unit built in to a cabinet base.

 
Hercus 9" (Inch) Model (A) - Roller Bearing Headstock Model (AR) shown                                                                                                     
Hercus 9" (Inch) Model A
 
The model A lathe (above) features a quick change gearbox for screw cutting and feed selection and an automatic power feed apron. The gearbox provides 40 screw pitches, the  feed changes by shifting two levers in accordance with a direct reading index chart on the gearbox. A further coarse thread from 4 to 7 T.P.I. may be obtained by transposing one gear in the change gear train.

The power feed apron provides powered feeds both along the bed and across  through a worm drive and friction clutch. Power is transmitted through a spline machined along the leadscrew, leadscrew  threads being used only for screw cutting. A built-in safety device prevents simultaneous engagement of halfnuts and power feeds.
 
 
Hercus 9" (Inch) Model B - Roller Bearing Headstock Model (BR) shown
Hercus 9" (Inch) Model B - Roller Bearing Headstock Model


The Model B lathe (above) has an automatic power feed apron but is not fitted with a gearbox. Power feed rates and screw thread pitches are obtained through a set of conventional pick off change-wheels, arranged in accordance with an index chart on the lefthand end cover. The set of change-wheels provided with B model lathes comprises 13 change gears, one idler and two compound idler gears, the larger gears being cast iron and the smaller ones steel.
 
 
Hercus 9" (Inch) Model C - Non Roller Bearing Model shown
Hercus 9" (Inch) Model C - Non Roller Bearing Model

The model C lathe (above) has plain apron and is not fitted with a gearbox, thus considerably simplifying the machine. A set of conventional pick off change gears, together with an index chart, give a screw cutting range from 4 to 160 T.P.I. and provides 14  feed rates through the leadscrew. No power cross feed is provided. The set of change-wheels provided with C model lathes comprises 13 change gears, one idler and two compound idler gears, the larger gears being cast iron and the smaller ones steel.
 
 
Identifying Hercus 260T Series
 
The Hercus 260AT Lathe
Is a precision machine tool, built to high standards of accuracy and workmanship, established during more than fifty years of manufacturing experience. Designed to modern principles of safety and compactness. This lathe is ideally suited for both Industrial and Technical Training purposes. Many years of dependable service with a minimum of maintenance is built into every lathe.  The lathe was supplied in several models to suit various requirements and a wide range of attachments and accessories were available to increase the scope of work that could be performed.
 
The three basic lathe models differ only with regard to the screwcutting and feed mechanisms.
 
 
Hercus 260T - The Model A (ATM)
Hercus 260T - Model A Lathe (ATM)


The Model A has a quickchange gearbox and power feed apron. The gearbox enables a quick and simple selection of screw threads or feed rates while the apron may be used to engage either the leadscrew thread for screw-cutting or drive the leadscrew keyway for power feed,  the engaging lever can select either longitudinal or cross feeds and is interlocked with the thread halfnuts to prevent simultaneous engagement.
 
Hercus 260T - The Model B (BTM)
Hercus 260T - The Model B (BTM) - Image not avaliable

The Model B has the same power feed apron but is not fitted with the quick change gearbox. Screw threads and feed rates are obtained by using a set of change gears.

Hercus 260T - The Model C (CTM)
Hercus 260T - The  Model C (CTM)

The Model C is the simplest version having a plain apron which engages the leadscrew thread for screw cutting and also for a limited range of longitudinal feeds only. Screw threads and feed rates are obtained by using a set of change gears.