A System of Mechanical Philosophy, Bindi 4J. Murray, 1822 - 50 síður |
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Síða 546
... scapements for pendu- lums and balances very different . I. Of the Action of a Wheel and Pallet . THE Scapement which has been in use for clocks and watches ever since their first appearance in Europe , is ex- tremely simple , and its ...
... scapements for pendu- lums and balances very different . I. Of the Action of a Wheel and Pallet . THE Scapement which has been in use for clocks and watches ever since their first appearance in Europe , is ex- tremely simple , and its ...
Síða 548
... scapement of this kind , the motion of the wheel must be very hobbling and unequal , making a great step forward , and a short step backward , at every beat . This has occasioned the contrivance to get the name of the RECOILING SCAPEMENT ...
... scapement of this kind , the motion of the wheel must be very hobbling and unequal , making a great step forward , and a short step backward , at every beat . This has occasioned the contrivance to get the name of the RECOILING SCAPEMENT ...
Síða 549
... , namely , a farther reduc- tion of their size . This was accomplished very early ; and thus we obtained pocket watches , moved by a spiral spring , and regulated by a balance with the recoiling scapement , 3 WATCH - WORK . 549.
... , namely , a farther reduc- tion of their size . This was accomplished very early ; and thus we obtained pocket watches , moved by a spiral spring , and regulated by a balance with the recoiling scapement , 3 WATCH - WORK . 549.
Síða 550
... scapement , which is still in use for common watches . The hobbling motion of the crown wheel is very easily seen in ... scapement for a pendulum making small vibrations , without making use of the opposite motions of the two sides of ...
... scapement , which is still in use for common watches . The hobbling motion of the crown wheel is very easily seen in ... scapement for a pendulum making small vibrations , without making use of the opposite motions of the two sides of ...
Síða 551
... scapement we employ those teeth of the wheel which are moving in one direction ; whereas in the former scapement , opposite teeth were employed moving in contrary directions . Yet even here we must communicate an alter- nate motion to ...
... scapement we employ those teeth of the wheel which are moving in one direction ; whereas in the former scapement , opposite teeth were employed moving in contrary directions . Yet even here we must communicate an alter- nate motion to ...
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action angle appear arch axis balance ball beats body canal centre coating concord conductor constipated cord curve cylinder Daniel Bernoulli degree density diameter diminished dipping needle direction distance effect elec electric fluid electrified electrometer electrophorus equal experiments explain farther force give glass globe greater harmony harpsichord headsails impulse inches increase length limma loadstone magnet major third manner mean tones motion moveable musical natural natural density nearly needle north pole observed octave overcharged pallet particle pendulum perfect perpendicular phenomena piece of iron pipe plate polarity position precisely produced proportion pulses quantity ratio reader redundant fluid redundant matter repel round sails scapement sensible shew ship side sound south pole stratum string suppose surface temperament tetrachords theory tion tooth touch tricity trumpet tune undercharged undulations velocity vibrations wheel whole wind wire