The following statement of the comparative weights and sizes of Umbrellas was prepared by M. Farge for the French Exposition of 1849:--
Umbrellas Length of ribs. Weight, of inches. Lb. oz.
1645 31 1/2 3 8 1/2 1740 29 1 13 1780 28 3/4 1 8 1/2 1840 27 1/2 0 13 1/4 1849 27 0 8 3/4
From 1808 to 1848, eighty patents were taken out in France for inventions, three of importation, and forty-one for improvements in Umbrellas.
In England, after their first introduction, the manufacture of Umbrellas increased rapidly. The first patent is dated 1780, and was taken up by Mark Bull for "A machine for supporting an Umbrella, which may be fixt to any saddle or wheel'd carriage, being far more compleat than any hitherto invented." The invention is described in the following words :--
"There is a ball and socket of steel or iron, or any other metal or composition. The ball moves in any direction, and is fixed by one, two, three, or more points, which are forced against it either by a screw or spring, The ball is made with small cavities to receive the points which press against it. In order to secure it the more effectually in the ball, there is a hole which receives the one end of the staff of the umbrella, which is secured in it either by a spring or screw, or a sliding or a spring bolt. The umbrella may be taken away from the staff; and either put under the seat of the saddle, or fix'd before the rider. The staff may be made whole or in two pieces, the one to slide within the other, in order to raise or lower the umbrella, and be fix'd either by a spring or screw. They are fix'd in the head of the saddle and cover'd by a top, without making the saddle appear in the least different to what they are now made."
The next is of the date of 1786, and was taken out by John Beale for "An umbrella with joints, flat springs, and stops, worm springs and bolts, slip bolts, screws, slip rivet, and cross stop and square slips, and the manner in which the same are performed is particularly described in the several plans, figures, or drawings annexed." The drawings referred to are not easily intelligible, from the briefness of the explanation attached, but show an Umbrella with a jointed handle, opening by a spring.