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terials, in the manufactured and unmanufactured state.Sealed 27th April-6 months for inrolment.

William Petrie, of Croydon, in the county of Surrey, gent., for a new mode of obtaining a motive power by voltaic electricity, applicable to engines and other cases where a motive power is required.-Sealed 27th April-6 months for inrolment.

Alexander Southwood Stocker, and Clement Heeley, both of Birmingham, manufacturers, for certain improvements in patten and clog ties, and other articles or fastenings of dress.-Sealed 27th April-6 months for inrolment. Osborne Reynolds, the Rev., of Belfast, Ireland, clerk, for improvements in paving streets, roads, and ways.-Sealed 27th April-6 months for inrolment.

Benjamin Rankin, of College-street, Islington, gent., for a new form and combination of, and mode of manufacturing blocks for pavements.-Sealed 27th April-6 months for inrolment

André Drouot de Charlieu, of Coleman-street-buildings, gent., for improvements in preparing matters to be consumed in obtaining light; and in the construction of burners for burning the same, being a communication.-Sealed 27th April-6 months for inrolment.

CELESTIAL PHENOMENA

FOR MAY, 1841.

D. H. M.

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in conj. with the D diff. of dec. 6. 16. N.

greatest hel. lat. S.

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Drises 8h. 8m. A.

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15. N.

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Saturn R. A. 18h. 9m. dec. 22. 21. S.

Georg. R. A. 23h. 37m. dec. 3.
13. S.

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Georg. passes mer. 19h. 54m.
in conj. with diff. of dec.
2. 47. S.

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Din Apogee.

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J. LEWTHWAITE, Rotherhithe.

THE

London

JOURNAL AND REPERTORY

OF

Arts, Sciences, and Manufactures.

CONJOINED SERIES.

No. CXIV.

Recent Patents.

To WILLIAM MORRETT WILLIAMS, of Bedford-place, Commercial-road, for an improved lock and key.[Sealed 27th February, 1840.]

THIS improved lock and key is constructed with peculiar and novel combinations of mechanism, intended to supersede the necessity of tumblers, as used in most of the patent locks at present known.

The peculiar mechanism is shewn, first, as applied to a padlock, see Plate XII., fig. 1, the back plate of the lock being removed for the purpose of exhibiting the parts within. The same is also shewn at fig. 2, the internal parts being in a different position, viz.-fig. 1. represents the bolt shot forward into the staple or bolt-hole of the jointed shackle, that is, locked; fig. 2, represents the same unlocked, or the bolt withdrawn from the shackle; fig. 3, is a section, taken transversely through the middle of the lock, in a vertical direction.

VOL. XVIII.

2 H

The case or frame of the lock is represented at a, a; the bolt at b, which is shewn detached at fig. 4. On the lower edge of the bolt, a rack, or series of teeth c, is formed. The end or tongue of the bolt is supported, and slides in the guide socket d, of the framing; and is guided in its sliding action by the screw e, passed through a slot in the tail part of the bolt.

Fig. 5, represents, in two positions, (one of them being in perspective,) the rack-box f, which is fastened to the lock plate immediately under the bolt, as shewn in figs. 1, 2, and 3. It will be perceived, that a longitudinal groove ≈, ≈, is cut in the upper part of this rack-box, in which the rack c, on the under side of the bolt, is intended to slide.

Fig. 6, is a side view of one of the several sliding pieces g, of which there are four employed in this lock, acting as guards, to prevent the bolt being slidden or moved from either its locked or unlocked position. These sliding pieces g, are to be inserted into the recesses or open parts of the rack-box f, one of which is shewn in the vertical section of the rack-box at fig. 7.

Fig. 8, represents the upper edges of these four sliding pieces g, g, g, g; in each of which there is a notch x, cut at a different distance from their several faces.

Fig. 9, is a side view of a forked spring h. The ends of the forks of this spring, when fixed to the lock plate, as at figs. 1, 2, and 3, fall into the perpendicular recesses or open parts in the rack-box f, and severally act against the faces of the sliding pieces g. These sliding pieces have each a tail or elongated part i, which is intended to be passed through the face plate of the lock, as shewn in the transverse section of the lock at fig. 3. On the face plate of the lock, a socket piece or key guide k, is affixed, with holes for the tails i, of the sliding pieces, to pass through, their extremities standing flush with the outside of the socket.

Fig. 10, represents the key or instrument by which these sliders may be moved, for the purpose of locking and unlocking; the face plate being removed in order to shew the parts within.

The bolt b, is projected forward into the locking position, as shewn in fig. 1, by a lever l, acted upon by a powerful main-spring m; and the bolt is slidden backward or unlocked, as shewn in fig. 2, by a feather spring n; a sliding piece p, having an inclined plane, (as seen in the detached figs. 11,) being at that time pressed against a tooth q, on the side of the lever 1, (see also the detached figs. 12); which, by withdrawing the lever l, allows the feather spring n, to throw the bolt back.

Figs. 13, 14, and 15, are sections, taken through the padlock in horizontal directions, at the level of the top of the rack-box f, for the purpose of shewing different positions of the sliders g. Fig. 13, representing their quiescent state, when the bolt is projected outward, corresponding to fig. 1; and fig. 14, when the sliders are shifted by the key, in order to allow the bolt to be slidden back, as in fig. 2.

Now, supposing the bolt to be projected, that is, locked, as in fig. 1,-in order to unlock it, the key, shewn at fig. 10, must be applied to the front of the socket k. This key is formed by a rectangular box s, s, which contains two series of pins or punches, of various lengths, fixed in a central block t. The key-box is mounted upon an axis or pivots, which enable it to be turned over in its carriage or handle; so that either of the series of punches may be applied to the socket k, which is a substitute for the keyhole. One of the series of punches, as v, is for the purpose of unlocking; the other, w, for locking. By referring to fig. 13, (which represents the sliders in their quiescent state, after the bolt has been projected, as in fig. 1,)

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