Chapter D

18 Dash Wheel for Calico Printers, acting with greater rapidity than
usual.
19 Differential Wheels for gaining immense power. 54
20 Doffing Machine, of great force for taking Cylinders from their
Mandrills.
21 Draw-bench for my twisted pinions.
22 Dynamometer, for measuring powers and resistances in motion. 15
23 Dynamometer, second kind.

E

24 Engine for cutting my _Patent Wheels_ in small and middling
dimensions.
25 Engine for cutting my large bevil Wheels and wooden Models, either
on my System, or the usual one.
N. B. These objects will occupy considerable space in the work.
26 Engraving Machine for Calico Printers, being an important
application of my Cog or toothed Wheels.
27 Engraving Machine for large patterns.
28 Essay to _derive_ power from expanding Solids.
29 Evaporation (Machine to promote.) 78
30 _Eyes_ (Machine for making rapidly.)

F

31 Fire escape (on a retarding principle.)
32 ---- (by breaking the fall.)
33 Fires (Portable Engine to extinguish.)
34 Fires (Watch Engine always ready for.)
35 Flax (Machine for breaking) with rapidity.
36 Forging Bar iron and steel (Machine for.)
37 Friction (to prevent.)
38 Friction (to prevent) Thoughts on.

G

39 Geering and ungeering (Machine for).
40 Do. Do. for swift motions.
41 Grating or cutting green Roots, Tobacco, &c. (Machine for.) 79

H

42 Helico-Centrifugal Machine, for raising water in large quantities.
43 Horse Wheel for saving room and gaining speed. 53
44 Horse Wheel (reciprocating) for Mangles, &c.
45 Horse Wheel, with means for turning the Horse when he acts in two
directions.
46 Horizontal Pump of large produce, driven by wind.
47 Hot Air as _power_, while heating liquids, rooms, &c.