"The folding parasol was constructed with jointed ribs so as to fold back, and was likewise self-opening. The rod was a metallic tube, and contained a spiral spring which acted upon and pressed upwards an inner rod. To this inner rod were jointed the stretchers, which in this construction were placed above the ribs instead of below, as in the ordinary form, beside which they were much shorter, so as to admit of their being concealed by the covering. By the elasticity of the spiral spring contained in the hollow stem, the inner rod was pressed outwards and lifted the stretchers, and by their means raised the ribs also, so that in its ordinary or natural state the umbrella was always open, and would continue so unless constrained to remain closed by a catch. On releasing the catch it consequently sprang open. In order that it might be easily closed, four cords were attached to four of the ribs and passed to the handle; and a loop embracing these cords passed down by the side of the handle, and enabled the possessor to close his umbrella without difficulty. From the authority already quoted, we learn that whalebone was employed for the ribs, and that their number varied with their length; for example, when 24 inches long the number employed was 8; when 25 inches, 9; and when 26, 28 and 30 inches, 10 were used. Calico was employed to cover umbrellas, and silk to cover parasols. The use of parasols was common in Lyons at that period (1786); they were carried by men as well as women; they were rose-coloured, white, and of other colours, and were so light as to be carried without inconvenience."
The "Encyclopedic Méthodique" gives some interesting particulars as to the manufacture of Parasols and Umbrellas at the end of the eighteenth century. From it, it appears that the ribs were occasionally made of metal. "On étend cette couverture portative par le moyen de quelques brins de baleine, ou de fils de cuivre ou de fer qui la soutiennent." This is interesting, as showing that metal ribs are not a very modern invention.
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.
In the next year (1787) we find an advertisement put out by Thomas Folgham, of Cheapside, stating that he has "a great assortment of his much-approved pocket and portable umbrellas, which for lightness, elegance, and strength, far exceed anything of the kind ever imported or manufactured in this kingdom. All kinds of common umbrellas prepared in a particular way, that will never stick together."
A description of the Umbrellas which, in all probability, Mr. Thomas Folgham made, we extract from the source mentioned above.