US1427674A - Dust collector - Google Patents

Description

VV. T. BLANEY.

DUST COLLECTOR. APPLICATION mgm APn.10.1922.

A QL Thieme@ Aug. 29? 1922.7

`WILLIAM THOMAS BLANEY. or PETERBOROUGH, ONTARIO, CANADA,

Application filed April 10, 1922.

To f// wlmi/i t may concer/i lie it known that I. lVILLiAM THoMAs liixxicr. a subject-ot' the King ot Great llritain` and a resident ot the city ot' Peterborough. in the county ot' Peterborough` in the Province ofOntario. Canada, have invented certain new and uset'ul Improveconsists essentially of the arrangement and a pipe 9 leads to'the carburetor.

construction oic parts hereinafter more particularly explained. K

Fig. 1 is a side elevation ot my device. Fig. 2 is a sectional view through the outer casing showing vthe inner casing in full.

Fig. 3 is a sectional view through Fig.

Fig. 4 is a plan View through Fig. 2 on line 4 4.

lnA the drawings like letters oi reference indicate corresponding parts in each figure. 1 indicatesthe outer casing which is preterably torined by two cylindrical portions B and 4, the portion 3 being preferably formed with a fiat end 5, reinforcing annular beads (S and 7 and the outlet orifice 8 from which The upper edge ot the casing portion 3 is bent inward at an incline at 10 for a purpose which will hereinafter appear.

The upper end of the casing portion 4 is.

preferably domed as indicated at. 11 and is also provided with a reinforcing bead 12 adjacent to its lower edge. In proximity to the lower edge of the casing portion 4 are 'Formed a series of inlet oriiices 13. 14 is an inner cylindrical casing. the exterior surface of which is spaced apart from the`in- Specification of Letters Patent.

Patented Aug. 29, i922.

seriai No. 551,175.

central opening 18 in the upper end of the inner casing. i

.19 is an annular channel ring which tits within the outer casing 1 and upon which, intermediately of its width. rests the lower edge of the inner casing 14. 20 is a cvlindrical screen formed of fine mesh and at its lower end with a hem 21 with which is inserted a wire ring 22 which :is slightly greater in diameter than the interior diameter et the annular ring 19. screen 20 in position it is drawn up through the'oriice formed by the annular ring 19 until the wire ring 22 bearsagainst the lower edge of the ring 19. 23 is a ring which fits within the annular ring 17. 24 isa similar ring of .Slightly smaller diameter than the ring 23 and adapted to fit within the upperend of the cylindrical screen 20. In placing the upper end of the screen in position the In placing the K outer ring 23is placed within the ring 17` and the inner ring is inserted within the upper end of the cylindrical screen. The upper end of the cylindrical screen |is"then drawn into the ring 23 and the ring 24 forced upward into thel ring 23 so as to gripthe upper edge ot the screen between itself and the ring 23.

It will be noted that the cylindrical screen 20tapers slightly upward, therefore providing inclined sides for a purpose v4which will hereinafter appear. 25 is a series of deliect- `ing plate strips which are located in the interspace 16 in an inclined position as will be clearly seen on referring to Figs. 2 and 4. -Having described the principal parts involved in my invention I will briefiy describe the operation of the same.

The air is drawn by the suction action of the pist-ons of the engine through the orifice 13 and passes upwardly through the inter- Space 16 into contact with the face strips 25 and is deflected thereby so as to have a whirl# lng motion as it passes up over the top of .the-

inner casing 14 and is directed downward by the dome topy 11 yso as to passlinto the' centre of the cylindrical and tapered 'screen 2() and is drawn through the screen into the terior surface of the casing 1 so as to form ,outermost portion 'of the casing 14 passing intervening annular ducts 15 and 16 sep arated apart by the inwardly inclinedportion 10 of the outer casing portion 3, which incline portion fits around the exterior of the innerv casing 14. 17 is an annular channel ring which fits within the upper end of the cylindrical body of the casing 14 forming a from thence through the orifice 26 into the interspace 15 passing around the exterior of the inner casing 14 to the outlet orifice 8 from which the air is conducted to the carburetor. As the air follows this course and passes through the screen 20, the dust is separated from the air and tends to cling to wey `the inner surface of the screen, the purified air passing from the screen to the outlet 8. A certain amount of dust remains upon the Surface of the screen but as it gathers it gradually drops oft', dueto the vibration of the engine falling downinto the lower end of the casing l thus automatically cleaning the screen. It may also be pointed out that a certain amount of back air pressure is exerted around the exterior of the screen thereby preventing any danger of the dust being drawn through the screen, also by meansof the inclined portion l() any danger of moisture due to rain is prevented from entering` into the interior of thex device and thereby detrimentally eiiecting the operation of the device due to the air becoming moisture laden. It will also be seen that I have devised a device which is entirely enclosed and therefore cannot be tampered with.

That I claim as my invention is:

l. A dust collector comprising an outer casing. having an outlet orifice adapted to be connected to a suction source and an inlet orifice through which the outer air is adapted to pass, an inner casing spaced apart 'from the outer ca'sing to form an interspace, an annular dividing wall extending across such interspace between 'the outlet and inlet orifices, a cylindrical screen supported within the inner casing and into one end of which the air from the inlet orifice is adapted to be drawn'so `as to pass through the Walls thereofto thel outlet orifice at theopposite side of the aforesaid dividing wall.v

the inletorifice is adapted to be drawn so l as to pass through the walls thereof to the outlet orifice at the opposite side of the aforesaid dividing wall, and a series of inclined deflecting face strips located in the interspa'ce above the dividingwall and the inlet orifice.

3. A dust collector comprising an outward enclosed casing, having an outlet orice adapted to be connected to a suction source and an inlet orifice for the passage of exterior air, an annular supporting member secured within the inner casing below the outf let orifice, a cylindrical casing body supported thereon and spaced apart from the Wall of the outer casing and having orifices in proximity to its lower end an annular dividing Wall extending between the inner and outer casings intermediately of their height, an annular member secured within the upper end of the inner casing to form an orifice of smaller diameter than the orifice formed by the aforesaid annular member, and a cylindrical upwardly tapered screen secured at its ends Within the aforesaid orifice.

WILLIAM THOMAS BLANEY.

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