US1445502A - Ash sifter - Google Patents

Description

Feb. 13, 1923. Y 1,445,502. G. E. ERICKSON.

ASH SIFTER. FILED AUG.13, 1919. 2 SHEETS-SHEET l.

Feb. 13, 1923.'

G. E. ERICKSON.

ASH SIFTER. FILED AUG.13,1919.

Z SHEETS-SHEET 2.

' S14/@amn x Patented i3,

v C o GUSTAVE ERIC ERXCEQSGN, OFy SIQUX CITY, IOW'A.

ASH SIFTER.

Application filed August 13, 1919. Serial No. 317,202.

T 0 all whom may concern Be it knoivnthatl. Gifs'ixwn Fimo liniensonT a citizen of the nited States, residing at bioul `City,v in the count-y oi lll/Toodbury and `State of Iowa,y `have invented certain new'Y anduseful Improvements in Ash .Sift ers; l'do'her'eby ldeclare the following to be a full, clean-and exact description ol the invention, such as will enable others skilled in'thcvart tojvhichit appertains to make and use the same. i

l`'llfhis"invention lrelatesto ash sifters and the lprimary object or' the linvention `is to provide an improved ash sitter in `which the partsthereofare completely enclosed, so as to render the device dust-proof and thereby eliminating the scattering or lashes during the sifting process.

4,Another object of theinvention is to provide an improved sifter, embodying a pair of compartments, one of said compartments being arranged to receive the tine ashes and the other compartment beine' arranged to receivethe partly burned coal.

A further object ofthe invention is to provide an improved sitter embodying a housing having a. swinging screen, which `is arranged below a hopper for sifting the ashes therefrom, the. screenbeing so' arranged, v*as to guidezthe line ashes to Aone compartment and the coarse or part-lylburnt coal to another compartment, the sitter having an improved means l'or operating the screen.

A still further object or' the invention is to provide an' improved sitter of the above character having an adjustable door. for the hopper, so as to regulate the feed or" the ashes tothe oscillating screen.

A still further object of the invention is to provide 'an improved ash sitter7 which is durable and efficient in use, one that is simple and easy'to manufacture, and one that can be placed upon the market at a reasonable cost.

W'ith these and other objects in view the invention consistsl in the novel construction arrangement and formation ot' parts, as Will be hereinafter morespecifically described, claimed. and Aillustrated in the accompanying drawing, forming a part thereo'tin which:

Figure l is a. side elevation of the improved ash sifter,

Figure 2 is an end elevation of the same7 showing part-s ot thehousing in section,

Figure 3 is a vertical longitudinal section through the improved sitter,

Figurefl is a detail fragmentary horizontal cross section tlirongh the improved silter,

Figure is a plan vicvv'oiI the adjustalile eccentric shaft, l

lign're y(l a detail cross .section taken on the `line (iw-ti of `liipjure il.

neieriii to the drawings in detain wherein similar reference numerals desig nate corresponding parts "throughoutthe several views the numeral l generally indicates they improved ash "e.i",` which embodies a frame 2 including the "upright standards 3 connected adjacent their upper and "lower ends by vertical longitudinal transverse. bars" a. "l le iva'llsn4 end Walls lG and a` bottoni Wall i is securc l to the standards 3 and the bars by cleats S and form` a housing or casing 1forthe screen 8. screen 8 includes Vthe side VWalls 9 and an end Wall l0 and a foraminous bottom Wall L which can be formed oi wire mesh oi' the like. The screen 8 suspended from Ithe upper longitudinal bars le bvrods l2, which have the terminals thereof provided vwith eyes 13, whichA are adapted to receive the hooks lil which are carried by" the side. walls 9 oi the screenand ho'lsl carried bythe upper longitudinal bary fi. The rods l2 are arranged in pairs and the 'forward pair` is formed relatively shorter than thercar pair so as to support the screen at angle. The hooks and eyes supportthe screen for'swing`- ingv movement `and 'allmvs the-f same to be swung back and asbesto be readily sitted.

A hopper i6 having downwardly inclined end walls 17 and 18 and side Walls llfis secured to braces 2() which ,fdend transversely acrossthe housing. in upper wall 2l is provided 'for the hopper which has 'an opening' 22 therein7 by means of which the ashes can be slitted and placed therein. The openingY is closed by a door 2P) which yis hinged as at 24 'to the top Wall.v A suitable handle 25 is provided for the door wluereliiv the same can be s\vu1i, gj`l a( fl on its lliiiges to allow ashes' to be placed Vin thesanni. rlhe end wallll is provided with an opei'n ing 2G at thebottozn end thereof. which adapted to be closed by a slidingl door 271 which is mounted in spaced guides 28 and it can be seen that by suitable manipulation oi the door the opening 2G can be made larger or smaller so as to regulate the flow oi ashes from the hopper. t suitable. handle 29 is provided on the upper end ot' the forth, sa este allovv the,

door 27, whereby the same can be readily operated. One of the side walls 19 is provided with a pair of spaced openings in which are slidably mounted drawers 3l and 32 which are provided with hand pulls 33. Cleats 34 extend transversely in the bottom wall 7 and form means on which the drawers can slide. Suitable guides 35 are provided for engaging the upper outer edges of the drawers and a central guide 36 is Provided for engaging the inner upper edges of the drawers. The central guide 36 includes an inverted V-shaped member 37 secured to the transversely extending brace 38. Secured to the screen 8 adjacent to the lowest end thereof is a downward and forwardly inclined chute 39, which extends under the screen, has its lower end positioned immediately above the drawer 3l and is adapted to guide the fine ashes into the same. Suitable brace rods connects the free end of the chutes 39 with the side walls 9 ofthe screen 8 and` provides a rigid connection between the screen and the chute. The lower end of the screen 8 is positioned directly over the drawer 2 and is adapted to guide the coarse ashes or partly burnt coal into the same.

A pair of bearings 40 are secured to one of the end walls 6 and rotatably receives the eccentric shaft 41. The eccentric shaft 41 is formed of a pair of spaced sections 42 which are connected by a central section 43, which is bolted to the same by suitable fastening elements 44. A portion of the shaft 43 lying between the spaced ends of the sections 42 receive the connecting rod 45, which has its opposite end pivotally connected to thechute 39 adjacent to the rear end thereof as at a triangular block 46 and it will be seen that upon rotation of the shaft 4l, the connecting rod will swing the screen S. When it is desired to vary the stroke ofthe connectingrod 45 washers 47 or other suitable spacingelements are positioned between the shaft sections 42 and 43, so as to space the shaft section 43 from the sections 42 and thereby increase the stroke of the connecting rod.

Spaced blocks 48 are secured to one of theside walls 5 and support a strip 49 in spaced relation to the side wall, a stubshaft 50 has its terminals journaled in the side walls 5 and the strip 49 is adapted to be turned by a suitable crank 5l. A pulley 52 is keyed to the stub-shaft 50 intermediate the strip 49 of the side wall and connected to a driven pulley 53 connected by a belt 54. The driven pulley 53` is of less diameter than the pulley 52 and is keyed to the eccentric shaft 41.

The difference in the diameters of the drive pulley 52 andthe driven pulley 53 forms inrans whereby the shaft 4l can be driven at a relatively high speed. A diagonal brace rod 55 extends from one of the upper longitudinal bars 4 to the strips 49 and forms a suitable brace for the same.

ln operation of the improved device, the ashes to be sifted are placed in the hopper 1G and the door 2T is adjusted to regulate the feed of the same to the screen and the crank is then rota-ted, which in turn to the medium of the shaft connecting rod swings the screen back and forth which effectively sifts the ashes andthe line ashes fall through the screen onto the chtite 39, which carries the same into the drawer 3l and the coarse ashes and partijv burnt coals fall in the drawers 3l. The drawers can be readily removed, when the same are full.

In practice, l have found that the form of my invention, illustrated in the accompanying drawings and referred toin the above description, as the preferred embodiments, is the most efficient and practical, yet realizing the conditions concurrent with the adoption `of my device, I desire to emphasize the fact that various minor changes in detail of construction, proportion and arrangementof parts may be resorted to, when required, without sacrificing any of the advantages of my inventionl as set forth.

Vhat l claim as new is: In a sitter, a sifter member, a discharge 'chute extending angularly therefrom, a reinforcing and securing block of substantially triangular shape in cross section. said block having its apex at -the junction of said member and chute with two of its sides in supporting contact respectively with said member and said chute, an operating member secured to and extending from the other side of said block, and said operating member passing snugly through said chute to constitute a reinforcement therefor'. Y

In testimony whereof I aiiix my-si gnature in presence of two witnesses.

GUSTAVE ERIC ERCKSN.

lVitnesses:

A.. L. CHnsnRA, S. HnNneroKsoN.

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