403
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10 Lowry, S., 3 Lower Charles Street , Northampton Square ,Clerkenwell —Inventor and Manufacturer.
Lever watch, to show dead seconds on the one trainonly, with the usual number of vibrations or beats. In-vented and registered by the exhibitor.
Gold chronometer, with compensation balance, iso-chronal spiral, spring rated, and adjusted with other mo-dern improvements.
Model of the chronometer, or detached escapement, onan enlarged scale.
Small watch, with compensation balance, hard pendu-lum spring, &c. Plain lever watch.
Movements of different watches in their rough andfinished state.
Marine chronometers, &c., to show dead and completeseconds on the ordinary train.
11. Connell, William, 83 Cheapside —Manufacturer.
Pair of two-day marine chronometers, Earnshaw’s de-tached escapements; compound balance adjusted for hightemperatures.
12 Loseby, E. T., 44 Gerrard Street , Islington —
Inventor.
Mercurial compensation balance, exhibiting four modi-fications.
A regulator, illustrating a new principle in clocks, andshowing an improved form of mercurial pendulum.
An arc compensation.
13 Holl, Frederick Richard, 8 Weymouth Terrace , City
Road —Inventor, Patentee, and Manufacturer.
Gold index pocket-chronometer, with short angle-
locking spring to the escapement, set-hands at thependant.
Gold centre seconds eight-day pocket chronometer, Rj"dependent seconds, train, and stop work, with left-sideu>short, angle-locking spring to the escapement. # ,
Silver thirty-hour pocket chronometer, with right-sidedshort angle-locking spring, &c.
Gold compensated duplex index watch, gold dial, set-hands at the pendant.
Gold compensated lever index watch.
Gold lever index watch (lady’s), gold dial. . ,
Silver lever index watch, set-hands on the dial, ' n ’ 1 ‘ 1a key, locking spring.
The object of the short angle-locking spring is to makethe angle of the escapement so short that the balance>being more detached, the chronometer cannot stop in P 1 *pocket from the balance receiving a motion.
The index watches are a new invention, intendedanswer the double purpose of supplying a lever to bend
the main-spring, and also to indicate the number of hoursthe watch will go before the power is exhausted.
Gold centre seconds eight-day pocket chronometer, ,n 'dependent seconds train and stop work.
Silver thirty-hour pocket chronometer.
Gold compensated duplex index watches.
Gold and silver lever index watches.
Index watches, upon a new principle, kept going f 1 ’ 0111day to day by simply pushing the index.
14 Adams, Thomas, 36 Lombard Street — Manufacture 1,Black marble timepiece, of chronometrical movementblending the Grecian and Egyptian styles.
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Black Marble Timepiece, by Adams.
Imitation oak timepiece represented in the followingengraving.
Timepiece, with self-acting model of the Royal Observ-atory, with staff and ball, to rise and drop at one o’clock,as at Greenwich. Marine chronometer.
16 Howell, James, & Co., 9 Regent Street •—
Manufacturers. # \ve
Large or-molu clock, representing Jupiter, the tHours of the Sun, Apollo, and Diana, and Spring ‘Autumn strewing flowers and fruit on the earth.