US621816A - Conveyer-belt - Google Patents

Description

No; 621,316. Patented Mar; 2a, |899. A. HAsPEn. convavzn BELT.

(Applicationllved Dec. 17, 1897.)

(N0 Model.)

. u EN rand NTTnD STATES Price.

PATENT CONVEYER-BELT.

SPECIFICATION forming part of Letters Patent No. 621,816, dated March 28, 18-99.

Application filed December 1'7, 1897. Serial No. 662,290. (No model.)

To @ZZ whom it may concern:

Be it known that I, ABEND HAsPER, a citizen of the United States, residing at Hullfin the county ofEmmons and State of North Dakota, have invented a new and useful Conveyer-Belt, of which the followingis a specification. Y

This invention relates to endless carriers, conveyors, or belts commonly used in connection with milling and agricultural machinery and which comprise a series of slats secured to the textile or body comprising the apron or conveyer.

The improvement resides in the means whereby the slats are secured to the belt so as to insure a firm connection and prevent a sagging of the belt between the tacks or individual fastenings, and particularly to securing means in connection with wooden slats.

A further purpose of the improvement is to obviate the cutting of the belt or conveyer by the slats and to guard against the individual fastenings pulling through the textile, as well as to prevent splitting of the slats at their ends by the rivets or fastenings employed for attaching the reinforced strips to the belt and to so arrange the parts as to provide a cheap, light, and durable conveyer.

For a full understanding of the merits and advantages of the invention reference is to be had to the accompanying drawings and the following description.

The improvement is susceptible of various changes in the form, proportion, and the minor details of construction without departing from the principle or sacrificing any of the advantages thereof, and to a full disclosure of the invention an adaptation thereof is shown in the accompanying drawings, in which- Figure 1 is a perspective view of a portion of an elevator or conveyer belt, showing the application of the invention. Fig. 2 is a view similar to Fig. l as seen from the reverse side, parts being broken away. Fig. 3 is a transverse section of a slat, showing a por-` tion of the belt and the relation of the secur` ing means. Fig. 1ty is a perspective View of a slat. Fig. 5 is a transverse section of an end portion of a slat, showing the relation of the clip and its attaching means.

Corresponding and like parts are referred to in the following description and indicated in the several views of the drawings by the same reference characters.

The apron or belt 1 may may be of canvas or like material generally employed in the manufacture of elevators and conveyers for milling and agricultural machinery. Slats 2, which are preferably of wood, are secured transversely of the apron or belt at intervals in the length thereof and are formed in their lower sides with longitudinal grooves or channels 3, into which portions of the apron or belt are deiiected by means of rods 4, the latter being held in place against transverse displacement by staples or double-pointed tacks 5. The apron or belt is confined between the rods 4 and the slats 2 and cannot sag between the staples or fastenings 5 because of the rigidity and stoutness of the rods 4. Moreover, the textile l cannot pull through from the staples or fastenings 5 because of the extended surface presented by the rods 4.

The corners of the slats are rounded contiguous to the longitudinal grooves or channels and adjacent to the edges, so as to prevent injury to the belt, as frequently happens where the sharp corners are not removed by the same cutting through the body of the apron. The depth of the groove or channel in each slat is approximately equal to the diameter of the rod 4,which is arranged therein, although slightly exceeding said diameter, whereby when the rod is seated in the ehannel to deflect the apron the outer side of the rod is approximately flush with the corresponding surface of the slat. The channel or groove, however, is shallow compared with v its width, its sidewalls flaring or being divergently disposed toward that surface of the slat which is in contact with the belt, and the width of the staple 5, which is engaged with the rod to hold it seated in the channel of the slat, is less than the width of the channel or groove at the surface of the slat, whereby when the staple is driven to place, with its cross-bar in contact with the surface of the rod, said cross-bar is embedded in the belt or is approximately ilush at its outer side with the under or inner surface of the belt. Thus while I attain the advantage of the lightness which is the desirable feature of a wooden slat I present an unobstructed surface andA ICO at the same time secure the slat to the belt in such a way as to avoid chang or cutting the latter. I am aware that conveyer-belts have been constructed heretofore withhollow slats, in each of which a bight of the belt is secured by means of a rod fitted in the bight and also extended through the Slat; but I am not aware that any construction analogous to lnine has been used in connection with wooden slats, nor am I aware that it is old to employ wooden slats having convexly-rounded surfaces in contact with a belt to allow deiieetion of the belt in either direction from a straight line without exposing the same to contact with the sharp edges of the slat.

The longitudinal edge portions of the apron or belt are reinforced by strips G of stout leather orother material com monlyemployed for this purpose, and these reinforcing-strips are attached to the slats by rivets 7, passing through the parts l, 2, and 6. In order to prevent the end portions of the slats from splitting, clips 8 are fitted thereto and eonsist of plates having their end portions bent to embrace the edges of the slats, said clips having centrally-disposed countersunk openings 9, which receive the ends 'of the rivets, which when upset till the countersink of the openings and come about ilush with the outer side of the clips, so as not to be in the way or oifer obstructing parts. The top side of the slats is mortised or recessed to a suiiicient depth to receive the horizontal portion of the clips, whereby it may come flush with the top side of the slats, as clearlyindicated. The rivets 7 pass through openings near and in alinement with the ends of the slats 2 and intersect the grooves or channels 3 to form stops for preventing longitudinal displacement of the rods 4.

Having thus described the invention, what is claimed as new is l. The combination with an elevator or conveyor belt, of a wooden slat provided in its inner side with a shallow channel or groove, of which the side walls are iiared or diverged toward the surface of the slat and in to which said belt is deflected, a round metallic rod seated in the channel or groove, and staples extending through the belt and into the slat and straddling said rod with their looped ends in contact therewith, the width of a staple being less than the interval between the portions of the walls of the channel or groove at the surface of the slat, to prevent the projection of a staple beyond the exposed surface of the belt, substantially as specified.

2. In combination, an elevator or conveyer belt, longitudinally-grooved slats, rods of less length than the slats'to hold deflected portions of the belt in the grooves thereof, means for securing the rods in the grooves against transverse displacement, reinforcing-strips at the edges of the belt, and fastenings passing through the slats, belt, and reinforcing-strips, and projecting across the extremities of said rods, to retain them in place against longitudinal displacement.

In combination, an elevator or eonveyer belt, longitudinally-grooved slats, rods of less length than the slats for securing deflected portions of the belt in the grooves of the slats, means for securing the rods in the grooves against transverse displacement, reinforcing-strips arranged parallel with the longitudinal edges of the belt, staples embracing three sides of the slats at the extremities thereof and in the planes of said re- -inforcing-strips,and rivets extending through the staples, slats, belt, and reinforcing-strips, and projecting across the extremities of the said rods, to retain them in place against longitudinal displacement, the upper ends of said rivets being countersunk in the staples,- and the lower ends thereof in the reinforcingstrips, substantially as speciiied.

In testimony that I claim the foregoing as myown I have hereto aiiixed mysignature in the presence of two witnesses.

ABEND nAsPEa.

Witnesses:

JOHN VAN BOVEN, MAURITZ VAN LoEsT.

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