How to Succeed as an Inventor / Showing the Wonderful Possibilities in the Field of Invention; the Dangers to Be Avoided; the Inventions Needed; How to Perfect and Develop New Ideas to the Money Making Stage

by Goodwin Brooke Smith

On the following pages you will find a large number of mechanical movements with suitable description thereof which will undoubtedly assist inventors in developing and constructing their models of ideas. Most of the movements embraced in the following pages have appeared in various scientific journals and publications devoted to scientific and mechanical art. Study all the various movements applicable to your invention before deciding upon any particular one.

1. Illustrating the transmission of power by simple pulleys and an open belt. The pulleys in this case rotate in the same direction.

2. Illustrating the transmission of power by simple pulleys and a crossed belt. The pulleys rotate in opposite directions.

3. Showing the transmission of motion from one shaft to another at right angles to it by means of guide-pulleys. There are two guide-pulleys side by side, one for each leaf of the belt.

4. Showing the transmission of motion from one shaft to another at right angles to it, without the use of guide-pulleys.

5. Showing a method of engaging, disengaging, and reversing the upright shaft on the left. The belt is shown on a loose pulley, and accordingly no motion is communicated to the shafts. If the belt be traversed on to the left-hand pulley, which is fast to the outer hollow shaft (b), motion is communicated to the vertical shaft by the bevel-wheels How To Succeed and C; and if it be traversed on to the right-hand pulley, which is fast to the inner shaft (a), motion in an opposite direction is transmitted to the vertical shaft by the bevel-gear A and C.

6. Stepped speed-pulleys (on the left of the figure), used in lathes and machine-tools, and cone pulleys (on the right of the figure), used in cotton machinery, &c., for varying speed according to the requirements of the work being done. For a given speed of the upper shaft the speed of the lower one will be greater the more to the left the belt is placed. The cone-pulleys permit of more gradation in speed than the stepped arrangement.

7. Spur-gearing. The wheels rotate in opposite directions (cf. 12). The smaller wheel has the greater speed of revolution, and the speeds of the wheels are in the inverse ratio of their diameters.

8. Evans' variable friction gear. The gripping medium by which motion is transmitted from one cone to the other is a loose leather band, whose position can be varied by the hand-screw shown.