1862 Practical Mechanics Journal - James Ferrabee at International Exhibition
THE PRACTICAL MECHANIC'S JOURNAL GREAT EXHIBITION 1862.
PROPRIETOR'S OFFICE (PATENT OFFICES), 47 LINCOLN'S INN FIELDS, LONDON
LONDON: LONGMAN, GREEN, LONGMAN, AND ROBERTS.
GLASGOW: PRINTED BY WILLIAM MACKENZIE, 45 & 47 HOWARD STREET.
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J. Ferrabee & Company (1852), Stroud, produce an upright direct- acting high-pressure engine with variable expansion, and with rather an ingenious mode of altering the "cut-off" by the action of the Non-Condensing Vertical Engine and Sugar-Cane Mill-Side Elevation.
governor-being, in fact, a separate link motion, moved by two eccentrics (altogether independent of the valve gear) moving twice as fast as the fly-shaft, and the sliding block of this link pulled back and forwards by the governor.
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The cam receives a rotatory motion from a bevel pinion by Messrs. J. Ferrabee & Company, Stroud, Gloucestershire, is to fitted on to its lower extremity, whilst on the top of the can there be found amongst Messrs. Platt's cotton machinery. A perspective is fitted a collar formed with teeth round its circumference, and view of it is given in Fig. 452. The strap, A, is the prime mover receiving a rotatory motion from a spur wheel. Into this collar is of the machine. It works a pulley, the shaft of which gives motion, fitted a disc or ring, which carries a second disc fitted eccentrically through the spur wheel train, It, to the roller, B, which supports and therein, and provided with teeth on its periphery. Above the collar moves the endless travelling lattice. DD are the levers of a vibrat there is fitted, to turn loosely, an internally and externally toothed ing frame, the long levers having their fulcrum on the spindle of the wheel, which receives its rotatory motion from a spur wheel gearing roller, B, whilst the short levers are jointed to the carriages of the into the external teeth, whilst the internal teeth give motion to the rollers, E. These carriages are moved backwards and forwards eccentric disc already referred to. The can thus revolves by means of the bevel gearing, and the eccentric disc in the top of the can revolves on its own centre, and round the centre or axis of the can, by the aid of the collar and spur wheel arrange- ment, The ring which carries the eccentric dise is fitted into the can by frictional contact only, and may therefore be removed with facility for the withdrawal of the spool from the can. The sliver, on passing from the drawing rollers, enters a hole in the eccentric disc, having previously been passed through a guide eye fitted on to the top of the can, and its extremity rests upon the surface of the cloth on the top of the piston. This peculiar system of forming the spool causes the sliver to be wound in three eccentric rings round the spindle, a slight twist being at the same time imparted to the sliver. As the height of the filled portion of the spool increases, the piston descends in due proportion,
Ferrabee & Co.'s Wool Lap Machine.
until the various coils or sets of eccentric rings have completely filled upon the top rails of the fixed frame by an endless belt and stuð, the spool. The top of the can is then removed, and the spool with taking with them the tin rollers, E, and the vibrating frame, D. At its spindle is withdrawn. F is another endless travelling lattice, driven by the cone pulleys, In thus summing up the leading features of the existing system of G, and the chain and wheels therewith connected; and it is across cotton machinery, we cannot but be struck with the fact that the last this lattice, F, that the tin rollers, E, move to and fro. In action, eleven years have been by far more fruitful in those improvements the wool to be operated upon is received upon the endless travelling which relate to simplifications of details and accuracy of workman- lattice, c, by which it is carried to the space between the rollers, E, ship than in absolute novelties. In point of workmanship, it may be which the vibrating frames, D, move to and fro across the lattice, F, most emphatically said that the stride towards perfection has been and lay the wool thereon, in fine layers, one over the other; but the immense, and to this we may repeat that our textile manufactures lattice, F, being in motion at the same time, an oblique position is owe far more than to the introduction of special novelties. given to every layer, a little behind the one which preceded it. The WOOL-A very ingenious and effective machine for forming accumulative thickness of the layers depends upon the speed at "bats" of fleece, and for feeding endless "bats" to carding engines, which the lattice, F, is driven, and that can be regulated by shifting
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There are numerous exhibitors of hand tools, such as the excellent gib wrenches of Ferrabee & Company (1597), Stroud; but these scarcely come within our proper limits.
In concluding our notice of tools for working in metals, we cannot but remark the slight advances made by ourselves, since 1851, in any branches but those of special tools, and these mainly called forth by Bellona, either on land or at sen. Abroad there was much more room for progress, but it has been amply filled up, by our continental rivals, during the decade, some of whom, now run with our best, shoulder to shoulder.