Description of an improved Eight-Day Clock. 303 



to publish what they think may be useful from what I have, 

 written ; for public advantage is my grand object, as well 

 as it is theirs. I remain, sir, 



Your most obedient servant, 

 Burton Park, W. PlERREPONT." 



June 30, 1803. 



Charles Taylor ^ Esq. 



LIII. Description of an improved Eight-Day Clock, to 

 strike without a Ely; invented by Mr. Edward Masse v, 

 of Hanley, i?i Staffordshire. 



J. HE Society for the Encouragement of Arts, &c. voted, 

 last session, a bounty of twenty guineas to Mr. Massey for 

 this invention ; a model of which is reserved in the society's 

 repository. The subjoined account of it is by Mr. Massey*. 



" Having for a number of years considered a method of 

 striking a clock at certain regular intervals, which I con- 

 ceive may be of great service in making observations on the 

 heavens, and ascertaining the velocity of sound, &c., I beg 

 leave to lay before the Society for the Encouragement of Arts, 

 &c. a striking part of an eight-day clock, which I have no 

 doubt will answer the purpose intended ; and if, upon exa- 

 mination, the Society should be of opinion that it maybe use- 

 ful, I trust they will reward it according to its merit. They 

 will find that the work of this model is less than that of the 

 common striking-movements, and may be made by a com- 

 mon workman, with less expense and trouble ; the weight 

 required is also considerably less. The principle I act upon 

 is the pendulum, by which I regulate the stroke, instead of 

 the fly ; the advantage of which must be obvious to every 

 one. The machine consists of a toothed wheel A, one pi- 

 nion B, a pin wheel C, pallets DD, pendulum E, and 

 locking detent G. The hammer-work F is as usual, and 

 strikes on the bell at H. The weight hangs to the cord I. 

 (See Plate VI. fig. 1 and 2, where a front and side view of 

 the machinery arc given, and where similar letters denote; 

 the same parts in each view. 



** I consider it is only necessary for me to give the de- 

 scription of the vvheels, so as to oe a direction to a me- 



'" From the Tra;:sacti»ns of the Society for the Encouragtment of Arts, 

 Manttfactures, and Commerce, vol. xxi. 



chanie 



