US88796A - Improved wagon-brake - Google Patents

Description

I C. H. MILLS.- Wagon Brake.

Patented April 13, 1869.

o. H. MFLL s, 0 F R AV E N N A, 0 H I 0.

Letters Patent No. 88,796, dated April 13, 1869.

IMPROVED WAGON-BRAKE.

The Schedule referred to in these Letters Patent andmaking part of the same.

To all whom it may concern:

Be it known that I, G. H. Mints, of Ravenna, in the county of Portage, and State of Ohio, have invented certain new and useful Improvements in Car- ;riage-Brakes; and I do hereby declarethat the following is a full and complete description of the same, reference being bad to the accompanying drawings, making part of this specification, in which- Figure 1 is a side view of the carriage and brake.

Figure 2, a top view.

Figure 3, a view of the under side.

Like-letters of reference refer to like parts in the difl'erent views presented.

This invention has in view the application of a brake, or look to the hind wheels of an ordinary wagon or carriage, by means .of certain devices attached to and opelated by the forward axle-tree, in connection with the reach, whereby the lock is self-applying, thus dispensing with the use of levers, employed in operating the ordinary carriage-brake.

In fig. 2, A represents the front wheels, and B, the hind wheels of a carriage, of which 0 G are the axletrees, and D, the reach, all of which is or may be constructed in the ordinary way.

To the forward axle O, is attached a sliding link, E, fig. 3, by means of the bow F, said how being secured to the-lower end of the king-bolt, whereas the upper end of the bolt is secured to the link, on the opposite side of the axle-tree G.

By this means, the bolt is retained in a vertical po sition, and allows the axle-tree to turn horizontally, as indicated by the dotted lines a, for guiding-the carriage.

The link E is attached to the reach by means of the bands G, embracing the link and reach, but not so tightly but that the link is free to slide backward and forward'a certain distance, for a purpose hereinafter shown. r

For further security in the attachment of the link to the axle-tree, a slot, b, is cut in the link, for the reception of pins 0, secured in and projecting from the reach.

Said pins assist in restraining the link from lateral displacement, without embarrassing the sliding movement of the axle-tree and link, and which is regulated, in the distance of its longitudinal movement, by the check-plate H, interposed between the link and. reach, theends of said plate being turned up at each end,

against which the link abuts in its movements, and is thereby restricted to a limited distance, as above said ment of the apparatus, the practical operation of the same is as follows, viz:

It will be obvious that, on descending a hill, or other down-grade, the front wheels will be forced back by the exertions of the team, or the hind ones forward, in consequence of the longitudinal freedom allowed to the front axle-tree, in its connection with the reach. This backward movement of the front axle-tree will force back the link and transverse bar, thereby bringing the cams hard against the hind wheels, the strength of the pressure exerted upon them being in proportion to the grade of the descent, or weight of the load and carriage, thereby most effectually locking the hind wheels, and preventing the wagon from descending too fast The foot of the grade being reached, the brake is released from the wheels by the pulling forward of the front axletree, and again applied on the descent of another hill, or grade.

By this device, it will be seenthat no thought, care, or effort is required, on the part of the driver, to-lock the carriage, it being self operating, and applied more or less strongly upon the wheels, as the descent or the grade may require.

On locking the carriage, no obstruction is offered to the wheels by the brake, as the reverse movement of the wheels will so turn the cams, that the shortest radii of the eccentric will be brought facing the wheels, without contact therewith, and therefore will not prevent the wheels from turning.

I do not confine myself to any one particular manner of attaching the axle-tree to the reach; but,

What I claim as my improvement, and desire-to secure by Letters Patent, is-

The cams K, and cross-bar I, in combination with the sliding link E and pivoted axle-tree 0, arranged in relation to each other, substantially as and for the purpose set forth.

Witnesses: O. H. MILLS.

J. H. BURRIDGE, E. E. WAITE.

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