US383556A - Conveyer - Google Patents

Description

(No Model.)

A. H. BRAINARD.

, OONVEYER. y No. 383,556. Patented May 29, 188 8.

Witnesses Inventor.

iyg h gas.

Attorney llmre AMOS H. BRAINARD, OF HYDE PARK, MASSACHUSETTS.

CONVEYER.

SPECIFICATION forming part of Letters Patent No. 383,556, dated May 29, 1888.

Application filed December 21, 1887. Serial No. 258,587.

- a specification.

This invention pertains to that class of devices intendcd to produce slow progressive movement of material horizontally, and generally known as conveyers My improvements will be readily understood from the following description, taken in connection with the accompanying drawings, in which Figure 1 is a plan of a conveyer embodying my improvements; Fig. 2, a vertical transverse section of the same; Fig. 3, a perspective view of the rotating part of the conveyor; Fig. 4, an end View of one of the conveyervanes; and Fig. 5, a plan of one of the vanes, Figs. 3, 4, and 5 being upon a somewhat enlarged scale.

In the drawings, A indicates a horizontal trough, along which the material is to be conveyed from the left to the right; B, the outletopening at the right thereof; 0, the conveyershaft supported in suitable journals and arranged axially in the trough and arranged for rotation; D, a series of inclined vanes secured to the shaft, as by being forced tightly thereon, or by other well-known means, said vanes beingarranged parallel to each other and oblique to the axis of the shaft; E, a pawl-andratchet mechanism illustrative of means which may be employed to give intermittent rotation to the conveyershaft; and F, cut-away portions .motion may be produced by any suitable mechanisinas, for instance, the pawland-ratchet (No model.)

mechanism shownin the drawings. The material to be conveyed is received in the trough at theleft-hand end, and by therotation of the conveyer is carried to the right-hand end, where V it flows downward through the discharge-open ing B. If desired, the end of the trough may be left open for the endwise outflow of the material being conveyed.

Material lying at the bottom-of the trough is entirely free from the action of the vanes when their cut-away portions come below the shaft. As the conveyor revolves, the vanes act upon the material and lift it and cause it to drop again to the bottom of the trough in advance of its previous position, and in this way the material is gradually moved to the right and finally to the outlet.

It is to be understood that my conveyer differs from a worm in construction, mode of operation, and in result. The worm as used for conveyers is formed by a continuous spiral vane like the thread of a screw, the continuity of the vane being, howeverfoften interrupted by spaces circumferentially distributed, this resulting from the fact that the vane is built up out of a series of flutes. The action of such worm-vane is continuous throughout the revolution of the worm. Such a worm clogs when it attempts the handling of certain materialssuch, for instance, as wrought-iron or steel cuttings-and becomes totally inoperative.

My conveyer consists of a series of vanes arranged parallel to each other and oblique to the axis of the shaft, said vanes extending through a portion only of the circumference of the circle swept by the periphery of the vanes. The advance point of one vane is axially in advance of the heel of the vane immediately in front of it. There is thus no continuity of vane. In operation these oblique vanes do not act to produce a continuous procession of the material, but each vane takes stationary material as it finds it and advances it and leaves it stationary within the reach of the next vane, which does not reach the material. until it has been sometime stationary.

My improved conveyor handles wrought iron and steel cuttings with facility-a result not attained by any rotary conveyor of which I have knowledge.

I claim as my invention shaft, said vanes being arranged parallel to In a conveyor, the combination,substantially side of the conveyer is free from vanes, whereby rc as set forth, of a trough to receive the matewhen the oonveyer-shaft is so turned that the rial to be conveyed, a bearing for the support vanes project upwardlyfrom theshaft no vanes of a rotary conveyer-shaft, means for rotating will project downwardly into said trough. such shaft, and a series of vanes secured to said AMOS H. BRAINARD' each other and oblique to the axis of the shaft, the vanes corresponding to a portion only of the conveyer-circ1e, so that one longitudinal HENRY S. BUN'ION,

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