US482711A - Earth-scraper - Google Patents

Description

(N Model.)

J. D. BRAINARD. B11111311 SURAPER.

No. 482,711. Patented sept. 13, 1892.

1 l), PML

UNITED STATES PATENT OFFICE..

JULIUS D. BRAINARD, OF ST. PAUL, MINNESOTA.

EARTH-SCRAPER.

SPECFICA'IION forming part of Letters Patent No. 482,711, dated September 13, 1892. Application tiled June 5, 1891. Serial No. 395,177. (No model.)

To @ZZ whom t may concer/z:

Be itknown that I, JULIUs D. BRAINAED, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and use ful Im provementsin Earth-Scrapers, of which the following is a specification.

This invention relates to earth-Scrapers;

. and it consists in the construction and combi- Vfor dumping and holding the handle of the scraper. Fig. 5 is a rear View of the parts shown 1n Fig. 4. Fig. 6 is a detached crosssect1onal detail of the handle. Figs. 7 and 8 `are enlarged details illustrating more fully the manner of connecting the trip-chains to the dra\v-bail and its coupling. Fig. 9 is a perspective view ot' the draw-bail and trip .chain coupling mechanism detached.

A is the body or scoop of the scraper; B, the draft-bail, thelattersecured in the usual manner by ears or clips a a2 to the forward part of the scoop.

D is the handle-bail, which is pivoted through straps b b2 to the sides of the scraper, near the rear, and extending backward around the back of the scraper, as shown. The side portions of the handle-bail D are of atiron, while the rear part is formed in halftubular shape, and this half-roundportion is filled by awooden core or strip D2, as shown more clearly in G at D3. By thus forming the handle-bail I accomplish two important resultsviz., the curved formation greatly strengthens and stitfens it, and the introduction of the Wood filling D2 not only gives a still greater strength to the handle, but also renders the grip of the hands of the operator more certain and agreeable. Moreover, the wood, being a non-conductor of heat, will not absorb as much heat in hot Weather as the iron alone would, and will not become as vcold in winter. The straps l1 b2 are formed with projecting portions b2 l2, standing at right angles to the body A of the scraper and adapted to rest upon the sides of the draft-bail B when the scraper is dumped to prevent its turning completely over, but causing it to rest upon the ground by the curved front portions d cl2 of the sides, as

shown in Fig. 3.

E is a bar secured across the handle-bail D and adapted to come in contact by its upper edge With the rear of the scoop to form a stop tothe handle-bail to prevent its being turned up over the scoop. If found necessary, stop-lugs may be attached to the rear of the body A for the barE to strike against. Journaled horizontally by hangers e 62 to this crossbar E is a shaft or rod E2, having one end E2 turned upward and bent over the top of the rear edge of the scraper-body, as at g, while the other end ELL of the rod is bent downward and provided with an eye-bolt h through its lower end, the eyebolt being adjustable in the part E4 by a series of holes h2 and a pin h2, as more clearly shown in Fig. 4. The rod E2 is provided with a spring E2, by which itis held normally with its bent end E2 in con'- tact with the upper edge of the scraper-body, as in Figs. l, 2, 4, and 5.

Pivotcd by one end at e" in the strap b2 is a rod or hanger F', having an eye 2 in its lower end, connected by a chain F2 to a clip F2, attached to or hooked over the draftbail B next to its clip a2, While another chain F4 connects the same rod F above its eye i2 to the eyebolt h', as shown. The last link t4 of the chain F4 clasps the rod F', so as to slide freely thereon; but this link -will be of iron too large to enter the eye t2. The eye i2 is not entirely closed, so as to permit the last link t5 of the chain F2 to be freely hooked therein. When the handle -bail D is elevated, the rod E3 catches over the body A by its bent end g, and is thus retained in its elevated position, as shown.

The construction of and the manner of applying the hooked clip F3 are more clearly shown in Figs. 7, 8, and 9, which represent in enlarged details a portion of one end of the draft-bail, one of the draft-bail ears Ct', and clip F3. The clip Fs is formed with the backwardly-curved body portion having a hole in its lower enfl for the reception of the chain TOO .ward movement andthe crossbar E preventing any upward movement.

Vhen the scraper is filled and ready to be dumped, it is only necessary for the operator to draw the handle-bail upward, when the cross-bar E' will carry the rear of the body A upward and cause the nose m to catch into the ground. This movement changes the vrelative positions of the body of the scraper to the draftbail,so that the clip F3 is caused to draw slightly upon the chain F2, and through its connection with the hanger F and chain F4 this drawing motion acts upon the bent rods E' E3 and releases the catch g from the scraper, so that the continued forward movement of the` horses overturns the scraper until the projections 3 b4 rest upon the draft-bail B', as shown in Fig. 3, and with the handle-bail standing about in the same position as when the scraper is being filled, so as to be convenient to the hand of the operator when the scraper is to be restored to its upright position again. By this means it is never necessary for the operator to bend over any farther to restore the scraper than it is to dump it or actuate it While being filled. After the scraper is dumped it is left in the position shown in Fig. 3 and drawn in that condition back to the filling-place again, the friction thereafter coming Wholly upon the curved forward edges d' d2. When the scraper is to be again lilled, it is only necessary to draw backward upon the handle-bail, when the scraper will at once return to its upright position and the catch gsnap into place again and hold it as before.

When the implement is to be transported or when not in use, it is desirable to turn the draft-bail B backward over upon the body of the scraper, so that the implement will occupy less room. The chains F2 F4, if rigidly connected, would not be long enough Ato permit of such a motion being imparted to the draft-bail, and to provide for this movement is theobject of forming the connection bei tween the two chains by means of the rod F',

as by that means when the draft-bail is thrown over upon the body A the link i4 of the chain F4 slips upward upon the rod F', and thus lengthens the throw of the chain to an extent sufficient to permit of this eXtra throw to the draft-bail. By this means no cramping of the parts will take place when their relative 6o positions are changed or when the scraper is being transported.

In some forms of scraper the rod E' may require two of the parts E3 and catches g; but this would clearly bea mere colorable change and would not effect the operation of the implement or alter or effect its functions. Where the eyebolt h passes through the part E4, the latter is formed with a countersink h6, so that the eyebolt will freely oscillate therein, so as to draw squarely against its pin h3, no matter what angle the chain F4 may assume.

Having thus described my invention, whatI claim as new is- 1. In an earth-scraper, the scoop having the draft-bail B, pivoted thereto at its forward end, a handle-bail pivoted to the side of the scoop near its rear, cross stop-bar E', connecting the sides of said handle-bail and adapted to rest beneath the rear upper portion of the scoop to limit the upward motion of the handle-bail, and a catch pivoted to said cross stop-bar and adapted to lock said stop-bar and handle-bail to said scoop to prevent the downward movement of the handle-bail.

2. In an earth-scraper, the scoop having the draft-bail B, pivoted thereto at its forward end, a handle-bail pivoted to the scoop near its rear end, cross stop-bar E', connectingthe sides of said handle-bail and adapted to rest beneath the rear portion of the scoop, rod E2, journaled upon said stop-bar and with upturned end E3, having catch g, adapted to engage with the scoop and hold the handle-bail connected thereto, downwardly-projecting portion E4 on said rod and having adjustable eyebolt h', hanger F', pivoted to said scoop, chain F2, connecting said hanger with a clip upon the draft-bail, and chain F4, connected by one end to said hanger by a sliding link and by the other end to said eyebolt, whereby when said scoop is overturned said handlebail is released, substantially as and for the purpose set forth.

3. In an earth-scraper, the combination of the scoop and a handle-bail formed with flat sides and semi-tubular rear and a wood tilling or core inserted into said semi-tubular portion, as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JULIUS D. BRAINARD.

Witnesses:

C. N. WOODWARD, H. S. WEBSTER.

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