Screw cutting lathe made by Joseph Clement, with small glazed case containing specimens of work done.
This lathe was made by Joseph Clement, a noted mechanical draughtsman and toolmaker of his time. The chief features of the lathe are the geared mandrel, the sliding table with its various gears, and the traversing slide-rest which is capable of end to end movement. Provision is also made for attaching a revolving cutter to the slide -rest for milling, fluting, etc. The overhead gear which is supported on three columns and is mounted at the back of the lathe bed plate, is provided with the necessary grooved pulleys and separate clutches, the main object of which is to enable the turner to connect the movement of the flywheel with the slide rest, or with various pieces of auxiliary apparatus held therein, such as drills, cutters, milling and fluting appliances. The bed of the lathe is 12 ft long and is supported on three specially constructed pillar type supports. The lead-screw is supported at each end of the bed by brackets with enclosed bearings and the necessary thrust collars. The diameter of the screw is 1 in with a pitch of four threads to the inch. The two treadles are independent of each other. Thus two people can work on the same lathe bed, doing different and independent jobs.
Lathe bed with 2 screws & 2 tap bolts in front face; 6 screws in rear face.
Lead screw
A pair of wooden drawer cabinets for tool storage
Tool Board
3 standards to support overhead gear.
Double-geared headstock with additional countershaft, with one holding-down bolt and keeper
Double-geared headstock, with one holding-down bolt and keeper
Division plate to fit rear of mandrel of /8, and index to fit socket on /8
Heavy faceplate with gear-ring, to fit nose of /8, with two dogs.
Screw-in centre to fit nose of part 1937-121/8
Clement's driver complete with centre and 2 short driving pins, to fit nose of /7
Bell chuck with 4 screws , to fit nose of 1937-121/7
Face chuck with 2 independent jaws, to fit nose of 1937-121/7, with pair of biters fitted.
Face chuck with 2 jaws, self-centring, to fit nose of 1937-121/7, with pair of biters fitted
Pair of biters for 1937-121/14 and/or 1937-121/15, one broken and corner lost, and another unpaired biter
Faceplate to fit nose of 1937-121/7
Angle-plate to fit 1937-121/17 with 2 bolts, nuts and washers to secure it and 1 bolt, nut and washer and a bar dog for workpiece
Bracket bearing for leadscrew with wheelplate
Three studs for wheelplate 1937-121/19, one single and two double.
23 change wheels for screwcutting and sliding, from 20 to 130 teeth in steps of 5s.
Tailstock with winch for urging screw, screw-in plug with small taper-centre, holding-down bolt and keeper
Tailstock with winch for urging screw, screw-in centre, binding screw, holding-down bolt and keeper.
Fixed steady with pair of dies, bolt, nut and (wrong) keeper.
Adjustable travelling steady to fit on saddle with second rubbing-piece and part of a third.
Heavy geared cutting frame for use on the slide rest, with driving pulley and cutter fitted.
Heavy geared cutting frame for use on the slide rest, with cutter fitted but no pulley
Small geared cutting frame for use on the slide rest, with cutter fitted but no pulley
Mechanism to give a reciprocating motion, perhaps for cutting keyways &c.
Crude jointed lever, perhaps associated with 1937-121/29
Sliding saddle with raising-piece and 2 bolts and washers for slide rest and 2 bolts for attaching clasp-nut
2-motion slide rest for use on 1937-121/31, with winch on screw of upper slide
Plain slide rest comprising 2-motion rest swivelling on a pedestal.
"Cradle" fitting to secure 1937-121/33 to bed, with bolt and keeper
Two large and two small wheelplates to run on square bar of overhead gear
Two small single pulleys, two large single pulleys, and two double puleys to fit on /36, all mounted on studs with nuts and (some wrong) washers
Two guide pulleys on bracket for use with cutting frames
Single-geared headstock with holding-down bolt and keeper, and centre fitted
Endless-screw frame to fit headstock 1937-121/8, with screw, wheelplate, 2 change wheel studs and stud with hand wrench and stop arms.
70 bronze change-wheels of 20 d.p. for use on wheelplate 1937-121/40. Their tooth counts are: 30, 30,32,36,40,60,60, one each of all numbers 61 to 119,120,120,120,131
Wooden chest to contain change-wheels 1937-121/40 and other items
Two bronze handwheels with pulley groove and hand winch, to fit lower parts of slide rests /32 and /33. The wooden handle of one is split in two.
Bronze hand-wheel with pulley groove and hand winch, to fit upper slide of rest /33 (and perhaps also /32)
Bronze hand wheel similar in style to 1937-121/43 and 1937-121/44, lacking hand winch,an object of no obvious purpose.
Bronze wheel with pulley groove and two stop or carrying pins, similar in style to /43, /44 and /45 but of no obvious purpose and perhaps unfinished.
Two steel winches to fit lower parts of slide rests 1937-121/32 and 1937-121/33. One has wooden handle, split in two, and other lacks handle.
Bronze clutch lever for overhead gear, to fit on pins of large wheelplates /36
Bronze ring, probably to mount on wheelplate 1937-121/40, with two stops; and associated winch with pawl.
23 milling cutters for wheel teeth, some proprietory, and one proprietory slab milling cutter
Bronze worm wheel of unknown purpose, and steel hob by which its teeth were cut.
Two heavy tommy bars (to fit holding-down bolts of heads and rests) and a pin-wrench
13 machine chasers (double-ended), a boring tool, a vee bit, a rolling tool and two other slide-rest tools (18 in all)
Steel ratchet wheel with arm and gathering pawl, an iron dog or stop, a small iron winch handle (broken off), a nut and 2 washers, and 2 coach screws, all of unidentified purpose
An iron crown pulley, iron wheel and pinion of approx 5/16" pitch. A pinion of approx 7/ 16" pitch, hand-made iron nut, bronze pinion (unfinished) wheel and pinion from the motion-work of a clock, all probably foreign to this machine.
2 crankshafts (marked A and B to correspond to foot wheels). Pts 1, 2 crankshaft broken in handling 21/1/93 together with 2 keys; pt 3 second crankshaft with 1 key.
Two footwheels [marked A and B to correspond with cranks].
Pulley from 1937-121/59 pt 1
Two over-head shafts, pts 1 & 2. Pt 2 found tagged as 1954-639
Two bronze pulleys for over head shafts 1937-121/62 part 1 and part 2.
Pulley and dog clutch (2 pieces).
Two treadles with footboards (arms marked A,B,C,DD for position of pitmans).
Four pitmans (marked A,B,C,D, for the positions in which they were found)
Two square bars for over head gear, one with nut. Note : these bars found tagged as 1934-639.
Index lever
Pulley and dog clutch (2 pieces); pair to 1937-121/64
Right-hand bearing for lead screw
2 iron floor straps
Clasp nut assembly with 3 screws for attachment to saddle
Joseph Clements lathe key of box
