416
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Fig. 3.
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Hall’s Astronomical and Meteorological Clock.
fastened to the arbors of the first -wheels of the train,and which revolve (upon the average) once in threehours. B b are the escape wheels of the train, of thesame kind as the clock (the vertical dead beat), of 25teeth, c is the going barrel to impel the two independenttrains. D d is the thermometer and barometer. E isthe rod to which is fixed the marking apparatus in con-nexion with the revolving cylinders A a. F is theescape hour-wheel of 24 pins, with a barrel to receive thechain of the rod E. G is a wheel with a logarithmicspiral, the groove of which receives the pin of the bar H.
I is the clock-frame. The action of this entirely lie ^invention is as follows:—D d , the thermometer and baremeter, are made to vibrate continually by the escap ement B b, as inverted pendulums; the radii of *ngyrations of which are continually affected, either by tapressure of the atmosphere, or by the change of ternp erture: thus d , the Torricellian barometer, will, if 1 ^mercury fall one inch, increase the number of its vl .tions per hour by 1,000, every one of which istered on the revolving cylinder A, which gives a Iin e *length equal to the number of vibrations given bybarometer d per hour; a similar effect is produced by \thermometer D, by any change of temperature, and ’variation registered on A. The hourly measure is mark^by breaking the lines, which is effected by the escapethe wheel F, and the descent of the rod E, with 1attached apparatus. e
Patent diplometer for railway purposes; the tickets®stamped with the date and the number of tickets issue »with the amount paid.
62 Hinton, Charles, 10 Corporation Lane , Clerken ic6 ^—Designer and Manufacturer.
English hard white enamel watch dial, with sunkand seconds, allowing free motion of the hands, withflatter glass than usual.
64 Jones, John, 338 Strand —Manufacturer.
Gold and silver watches of peculiar construction. .
No. 1. The Bose Watch, showing Time and itsOn one half of the margin around the back is engr &v . -gon blue enamel, “Man cometh forth as a flower, an ^cut down.” On the surface of the richly engraved gback is a Maltese cross, in white enamel, and on its * ,limbs are depicted the four seasons of life—in the inblossom, decay, and death of a rose. On the other hof the margin is engraved, “ It is sown in dish ■no ur *is raised in glory.” The dial represents, in enamel c0 ^° l \ v ethe rose window of Westminster Abbey . On the tw *L e gcompartments indicating the twelve hours, are the nainof the twelve Apostles. On the bezil that holds the gis engraved, in blue enamel, “ He that taketh not his cdaily is not worthy of me.” . ^ erj
No. 2 shows, when viewed through a magnifying P^ ja series of cubical crystals, that being the primary CI *yof gold. ^ ein -
No. 3 is a new and simpler mode than hithertoployed of producing dead seconds, with sunk centthe dial, also a novelty. 'gu
No. 4 shows comparative merits of English and towork at equal prices. ^
No. 5. Centre seconds hunter with compensatelance, isochronal spring, and lever escapement.
66 Kaiser, Joseph, 30 Park Terrace , Pegenfs P a—Inventor and Manufacturer.
Improved detector clock, on a novel principleeating, at a glance, the days of the week and ®month, also the name of the month. It goes eightand requires no attendance after winding.
66a Moore, Major W., 3 Cornish Terrace , SathmDublin —Inventor. .
A surgical instrument for use previous to operationlithotrity, &c.
67 MacDoual, E. J., 12 Dorset Place , Pall Mall
Inventor and Manufacturer. an d
Patent escapement for chronometers, watches,clocks, without escape wheel. The same spring by 1rubber. . ^ ea n;
Drill-stocks: Archimedean; centrifugal Archim®vibrating; and duplex, simple, and centrifugal- f0 taryA new method of converting rectilinear intomotion. . e pro-
A new decomposition cell. Medals made by tcess.