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Description: |
| Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. Only the patent drawing is available. This patent is in the database for reference only.
“For Sundry Machines for the purpose of Checking, or Retarding, the velocity of Road Wagons, stages, and other wheeled carriages, denominated "Jones' Wagon Lock;" Samuel Jones, Bridgeport, Fayette County, Pennsylvania, May 4.An elaborate description of eleven pages introduces us to an acquaintance with this invention, or rather these inventions, which consist of different modes of accomplishing the same object.
A friction bar is to be made to press against the front part of the hind wheels of the wagon or carriage; this friction bar is to exceed in length the distance between the wheels; such a bar it is particularly stated, has been long in use, but the present patentee claims as new the application of friction blocks upon the friction bar. A dovetailed notch is to be cut into the bar, opposite to each wheel, and blocks of wood are fitted into these notches; the blocks being wedge shaped, are readily knocked out and replaced, as they wear away. It is proposed to face some of these blocks with iron.
Divers modes are proposed of causing the friction blocks to bear against the wheels, as will be perceived by the the subjoined claim, which must complete our account of this invention.
What I claim as new, and as my own invention, or discovery, in the above described machines, and for which I ask an exclusive privilege, is as well the improvement of the dovetailed and wedge shaped notches in the friction bar, and of the temporary blocks of wood, &c. to be applied to the wheels of road wagons, stages, &c. as herein specified, and the machines, or methods of applying the friction bar with the blocks, as herein described, and before claimed to be my invention, under the heads of No. 1, 2, 3 and 4; all involving the same principle of the hand lever; No. 5, involving the principle of the screw and crank; No. 6, involving beside the hand lever, and the crank, the pinion and rack; and No. 7, involving the principle of the wedge; as also the main general principle which is involved in all of them, of the manual application, and maintenance at pleasure, of a sufficient, regular and determinate friction, against the wheels of the wagon, carriage, &c. through the means of the mechanical powers: and which may be performed with ease and expedition, without stopping the horses to apply it."
Listed in the Journal of the Franklin Institute, V6, 1830 pgs. 73-74
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