1851 Great Exhibition: Official Catalogue: Class VI.: Whitworth and Co
201. WHITWORTH and CO, Manchester - Manufacturers.
Self-acting foot lathe, with motions for sliding, screwing, and surfacing, including double-geared head- stocks, conical steel mandril and bearings, case-hardened, compound slide-rest, with quick hand traverse. Guide-screw, with disengaging nut, and 24 change wheels for screw cutting. Anti-friction treadle motion, crank and speed pulley for band, with equal tension. Hand-rest with eccentric lock, two-face plates, elements driver, drill, bell, and cup chucks. (Fig. 1.)
This lathe is intended for amateur use, and exhibits a complete sliding, screwing, surfacing, and boring lathe. Ornamental chucks can be applied to this as to other lathes.
Patent self-acting duplex lathe, with two cutting tools, for sliding, screwing, and surfacing, having double-geared headstocks, with conical steel mandril and bearings. Slide-rest, with quick hand traverse, two compound top rests, one on each side of the lathe centres, with independent adjustments, two extra slides, with right and left screw for working the top rests simultaneously. Guide screw, disengaging nut, and 23 change wheels for screw cutting; two-face plates, elements driver, drill, and bell chucks. (Fig. 2.)
[The duplex principle consists in the employment of a cutting tool at the back of the lathe opposite to the tool in front, and in inverted positions to each other. The transverse forces are thus balanced, the work produced is more correct, and is accomplished in less time than by the ordinary lathe.]
Patent self-acting compound duplex lathe, with four cutting tools, for sliding, screwing, and surfacing.
[The arrangement of this lathe is similar to the foregoing, except that this has a duplicate independent series of self-acting motions and tools, which may either be worked separately or simultaneously. The bed is of great length, in one casting, and may be used for two distinct lathes, by employing an extra set of headstocks. The lathe, though suited for general work, is intended more particularly for sliding long shafting, and for cutting screws. In sliding a shaft, the two series of tools commence in the middle of its length, and proceed in a direction right and left. There is, consequently, a balance of force longitudinally, as well as transversely.]
Patent self-acting duplex railway-wheel turning-lathe, including two sets of double-geared headstocks and face plates, driven independently, to prevent torsion of the axle; four compound slide rests, with separate self-acting motions to each, and swivel plates. (Fig. 3.)
[Four cutting tools are employed, two acting upon opposite sides of each wheel. Both wheels are turned at once upon their axle, and the slide rests are readily removeable in order to get the wheels into and out of the lathe.]
Patent self-acting planing machine, with reversing tool, to plane both ways; grooved table, with screw traverse, by which the driving is removed from the middle to the end of the bed. Self-acting motions, for horizontal, vertical, and angular planing.
Self-acting planing machine, to plane one way, with quick return motion. (Fig. 4.)
The arrangement of this is similar to the foregoing, except that this has a quick return motion applied to the screw, and has a fixed tool instead of a reversing tool. The tool-holder is fitted with a segment wheel and worm, for shaping internal curves, and has a self-relieving motion. It is self-acting in all cuts.
Patent self-acting crank planing machine, uniform in cutting, with a quick return motion. The tool holder is fitted with segment wheel and worm, and has a self-relieving motion as in the last machine. The general arrangement of parts, such as the bed, table, uprights, and cross-slide, is the same. The motion from the crank is imparted to the table by means of a grooved lever, in which the crank pin slides, a connecting rod being attached to the top end of this lever and to the table. The connecting rod consequently vibrates through a very small arc, and enables the ordinary V slides to be used in the bed and table.
Patent self-acting universal shaping and planing machine, with adjustable crank, acting uniformly in cutting, with a quick return motion; with bed grooved on the front side, two tables for fixing the work, moveable vertically and longitudinally; horizontal slide moving the full length of bed, for planing flat work; transverse slide and tool-holder, with segment wheel and worm for internal curves; vertical slide and swivel for angular work; conical mandril, with worm and wheel for circular work. (Fig.5).
These machines are used for shaping and planing levers, cranks, straps, cross-heads, etc., and for carves and planes in general. They have five independent self-actions, vis.; for flat, vertical, angular, and circular work, and for internal curves.
Patent self-acting slotting and shaping machine, with independent upright framing, adjustable crank and quick return motion; vertical stilt and tool holder; table fur holding the work, fitted with two series transverse slides; worm-wheel for circular work; self acting transverse and circular motions. (Fig. 6.)
These machines are used for cutting keyways in wheels and for shaping work in general. The upper series of transverse slides give increased facility in chucking work to be shaped.
Patent self-acting bench slotting and shaping machine, similar to the foregoing, but adapted particularly to small work.
Small self-acting vertical drilling machine, single geared, with independent framing, drill spindle in tube, with variable down motion, plain elevating table.
The spindle, by passing through a tube and not revolving in bearings, undergoes very little wear. It may be quickly raised by hand.
Self-acting vertical drilling and boring machine, double geared, with independent framing, drill spindle in tube, variable down motion, and radial table, with vertical and horizontal slides. (Fig. 7.)
The radial table affords greater facility than it fixed table fur chucking work; and any number of bolts may be drilled after once fixing without disturbing the work till finished.
Self-acting radial drilling and boring machine (medium size), with independent framing, vertical elevating slide, radial arm, moveable through an arc of 190 degrees, slide carrying drill spindle, with variable self-acting down motion. (Fig. 8.)
These machines are used for drilling the end plates of tubular boilers, and for work in general. All holes within the range of the machine can be drilled without removing the work till finished. These machines are also adapted for work of a massive character, such as large cylinders, etc., which could not be conveniently lifted and placed on the table of the ordinary drilling' machine. A pit should be provided in front for objects of great length.
Punching and shearing machine, for hand or power, with separate slides for the two operations, one on each side of the machine, worked by eccentrics. Apparatus for raising the punch quickly without stopping the machine. Small shears for cutting off bars of any length. Punching and shearing, or bar cutting, may be carried on at the same time without interruption. (Fig. 9.)
Hand-punching and shearing machine, with single slide, worked by eccentric, only one process being carried on at a time.
Self-acting wheel-cutting and dividing machine, for bevel spur and worm wheels, with headstocks and dividing wheel, moveable horizontally for different diameters of wheels, cutter frame, with universal adjustment, self-acting traverse for cutter, self-adjusting driving pulleys, change wheels, for all numbers up to 100. (Fig. 10.)
Self-acting bolt-head and nut-shaping machine, with two circular cutters, for shaping two sides at once, two concentric chucks, for two objects to be operated upon at the same time. Duplicate compound slides, with independent self-acting and self-disengaging motions to prevent injury from the cutters. (Fig. 11.)
The chucks are respectively placed on opposite sides of the centre of the circular cutters, by which the forces are balanced, and a much greater quantity of work is produced than if one chuck only were used. These machines are applicable for shaping and squaring nuts, ends of shafts, etc. The concentric chucks are removable, so that other work may be shaped and squared.
Patent screwing machine, for bolts and nuts, with hollow mandril, die holder, with four radial dies, two on each side of the centre, complete sets of dies and taps, with chucking apparatus for bolts and nuts. The radial die holder is similar in principle to the patent guide screw stock. The dies are cut by master taps, of double the depth of thread larger in diameter than the working taps, so that the circle of the dies in contact is the same size as the screw blank. A perfect guide is thus obtained, and a thread of correct pitch is formed at the commencement. The inner edges of the dies being filed off to at acute angle, they cut with ease without distorting the thread; and by the direction in which the dies are moved, their cutting power is preserved for the full depth of thread. Their action in cutting is similar to the chasing tool, which they resemble in form, and may in like manner be sharpened on a grindstone.
Patent screwing apparatus, including the patent guide screw-stock and dies, working taps, master taps, for cutting up the dies, hobs, for cutting screw tools, and case-hardened tap wrenches. The dies of the screw stock are cut by a large master tap, and their action is the same as explained in the bolt-screwing machine. The diameter of the working taps are made to standard gauges; the angle of the thread in all cases is 55 degrees, rounded off at top and bottom to two-thirds of a complete angular thread; small fractional pitches are avoided, and the principle of uniformity in pitch, form of thread, and diameter, is rigidly adhered to. (Fig. 12)
Measuring machine, and standard yard measure.
Internal and external standard cylindrical gauges, of size from 1/8th to 6 inches diameter, tested by the measuring machine.
Set of stepped gauges, external only from 1/8th to 6 inches.
Patent knitting machine, knits one stitch at a time, similar to hand knitting: may be worked by hand or power.