Sieve for Grain Separation (Patent No: 444698)

Inventor: Germain, Desire L.

Location: Calgary

Comments: N/A

Description:
Having regard to the foregoing disclosure, the patent of which this specification forms part confers, subject to the conditions prescribed in The Patent Act, l935, the exclusive right, privilege and liberty of making, constructing, using and vending to others to be used, the invention as defined in claims submitted by the patentee as follows-

1. A sieve of the type described comprising a series of semicircularly shaped troughs in parallel alignment, each trough being joined to its adjacent trough to form a dividing ridge therebetween for the guidance of seed grain into said troughs during the process of weed seed separation from the mass of seed grain passing over the inclined sieve, and a plurality of apertures in staggered formation in each trough.

2. A sieve of the type described for the separation of weed seed and other foreign matter from the wheat seed and the like, comprising a plurality of parallel troughs adjacently disposed and separated one from the other by sharp-edged ridges, and more or less circular apertures in each trough, each said aperture being lipped downwardly both on the seed approach end of the aperture to guide the seed into the aperture, and downwardly on the downstream end of the aperture to assist the wheat seed through the aperture and the foreign matter over the top of the aperture for the division of one type of seed from the other type of seed passing along each trough, the discard being delivered over the end of each trough.