US1573350A

US1573350A - Percentage feeder

Info

Publication number: US1573350A
Application number: US2046A
Authority: US
Inventors: Angus D Maclellan
Original assignee: MACLELLAN MIXER Co
Current assignee: MACLELLAN MIXER Co
Priority date: 1925-01-12
Filing date: 1925-01-12
Publication date: 1926-02-16
Anticipated expiration: 1943-02-16

Description

Feb. 16,1926. 1,5?3350 A. D. M LELLAN PERCENTAGE FEEDER Filed Jan. 12, 1925 2 Sheets-Sheet 2 Patented Feb. 16, 1926.

UNJTED '5 1,573,356 PA ENT OFFICE.

Aivens =13. iv'rac'nnmmn, or ougnnsnono xniv'rnomr, nssrenon' 'ro MAcnELLaN MIXER COMPANY, or ownnsiaqno, KENTUCKY, A-QORPORATIQN OF"KENTUGKY.

PERCENTAGE FEEDER.

Application filed January Too. 7.0720372 it may concern:

I Be it known that I. ANGUs D. MAOLEL- LAN, a citizen of the United States, residing at Gwensbormin the county of Daviess and State of Kentucky, have invented new and useful improvements in Percentage Feed e'i's, of which the following is a specification. This invention relates "to feeders and more especially to improvements in percentage feeders adapted for use in measuring all kinds of feeds, sand, gravel, cement and other abrasive and refractory substances.

Aprilnary object of the "invention is .to provide asimple, inexpensive and accurately measuring precentage feeder with means associated with the peripheralpockets of the to cause the material delivered to the casing to gravitate therethrough.

Another object of the'invention is to pro vide means for automatically operating),- a haminer so 'that the latter will strike ,the inner periphery of the measuring wheel at predetermined points in its path of travel and thus prevent material from adhering to the pockets of the wheel.

Referring to the drawings:

Figure 1 is a plan view of the feeder with the cover removed.

FigureQ isa sectional view taken substantially along the lines 22 of Figure 1 with the cover attached to the feeder.

'Fig 'ure 3 is a detail sectional view of the invention.-

Figure l is a perspecth'e view or modified form of the invention.v

Referring to the drawings in which like numerals indicate like parts in the several views, 10 denotes 'a feeder casing preferably of integral construction and of any suitable size or shape, which is secured to the inclined sides 11 of the supports 12 by the bolts 13. The inclined bottonror base 10 of the casing 10 has extending th'ereth'ro'ugh a drive shaft 13', that has connected to its lower end-a bevel gear-14E, in mesh with a pinion 15 keyed to the drive shaft 16, which shaft is suitably journal-led in the lugs 17, Se e -ito the/sides .151 of the Supports. A

12, 1925. serial-No. 2,046.

measuring wheel 18, having peripheral pockets 19, is locked to the shaft 13 in any suitable manner, such as by the set screw 20, and is'arranged to conduct the material delivered to the casing; through the inlct'opening 21 to the outlet opening 22. Preferably a wheel '23 is also secured to the shaft 13 by the set screw 2% and has depending from its outer periphery, a series of tapered lugs 25 which engage a hammer 26 pivoted to the bottom of the casing as at 27, so that upon rotation of the measuring wheel 18 and the wheel 23, the hammer will ride up the inclined surface of the lugs 25 and he brought'into striking engagement with the inner wall of the wheel 18 at predetermined points in the path of travel of the whe l, thus preventing the material in the pockets: 19 from adhering thereto as the wheel approaches the outlet opening 22.

The amount of material deliverel to the casing is regulated by a feed gate 28 which is provided with end flanges 29 arranged to slide in correspondingly formed recesses 30 formed in the adjacent walls of the cas ing. The feed gate is arranged to be opened by a shaft 31 having a pair of pinions 32 which mesh with the complementary racks 33, so that upon the rotation of the operating wheel 34-, carried by the shaft 81, the end gate may be moved verti ally relative to the bottom of the casing and thus control the height to which the pockets of the measuring wheel are to he filled. In order to maintain the end gate in any predctermined adjusted position. means are provided for locking the wheel 371: in position, which consists in a clamping plate which on gages the periphery of the wheel 34, and is removably secured thereto by the wheel 36 carried by the side of the casing.

An automatic scraper 37 engages the periphery of the measuring wheel 18 so as to smooth off the surface thereof, and is pivoted to the casing by a pin 38 adjacent the inlet opening 21. The scraper 37 has a lever arm 39 connected to a spring- -1l0 sccurcd to the casing by the bolt 41, so as to yieldably maintain the scraper in contact with the measuring wheel. In order to prc vent material from leaking" or passing around the scraper when the measuring wheel 18 is in motion or at rest, and to insure, an equal and uniform supply of materialbeing carried by each of the Pockets,

a movable member 42 in the form of a' dribble wiper or wing is hinged to the scraper as at 43, and engages the pockets 19 of the measuring wheel so as to preclude the possibility of material entering these pockets after they have passed the scraper. As will be seen from an inspection of Figure 3, the measuring wheel 18 is sufliciently spaced from the walls of the casing 10 as to permit .the material cn'rptying from the pockets as soon as they have passed the movable member 42. Furthermore, the scraper 37 and the movable member l2 are yieldably maintained in position so that in the event of any hard or unyielding material entering the feeder it will be able to pass therethrough without injury to any of the parts.

In order to prevent the material clogging in the inlet opening 21 a agitator 43 is mounted in the bottom of the casing so as to loosen and commingle the material before it is conducted to the measuring wheel 18. This agitator is reciprocated by means of an arm ist, which is eccentrically connected to a shaft 45 by a link 46, which shaft is in turn arranged to be driven by the drive shaft 16 in any suitable manner such as by the chain 47 connected to the sprocket wheels 48 and 49, carried by the shaft 16 and the shaft 4L5, respectively.

The wheel 1.8 is enclosed within the casing 10 by a suitable cover-50 so as to be readily removable therefrom; for the purpose of substituting a wheel having peripheral pockets of larger or smaller size, depending upon the particular kind of material to be measured' Obviously, the lugs 25, instead of being carried by the wheel 23, may be directly secured to the measuring wheel. lrlo-wever, in order that the-cost of the measuring wheels may be kept at a minimum and also to facilitate the removal of the wheel from the casing when it is desired to substitute another wheel therefor, thelugs are preferably carried by an independent member such as the wheel 23.

The drive shaft 13 which carries the measuring wheel '18, extends through the bottom of the casing at substantially right angles thereto so that the wheel 18 will be inclined substantially parallel with the bot tom of the casing and thus cause the material to pass freely from the inlet 21 to the outlet Likewise, the peripheral pockets 19 are arranged at substantially right angles to the bottom of the casing, and the ends of these pockets are opened so that the lower ends adjacent the inlet 21 are closed by the bottom of the casing, while the upper ends are suiliciently spaced from the top of the cover to permit the air to escape when the pockets are being filled, and pass over to the cups that are emptying, thus preventing any air pressure or vacuum causing a bl ng ll llt 'lll bihfii Pre e a ly, h

lower portion of the bottom 10 slopes downwardly, as at'll, so that the bottom recedes from the wheel to facilitate the de livery of the material from the pockets to the outlet 22.

The casing 10 and the 'measuring wheel 18 are preferably inclined at an angle of between forty and fifty degrees to the horizontal or base of the supports 12 so that the material as it is delivered to the casing will have a tendency to flow freely thercthrough. For all practical purposes, this angle has been found to cause an efiicient operation of the machine when positioned at substantially forty-five degrees to the horizontal.

The shaft 16, to which'the measuring wheel is connected, is driven by a pulley 51 carried by a clutch sleeve 52 arranged to be operatively connected to the shaft by the lever 53.

It will be seen that by reason of the present construction a very simple and efficient feeder is provided which comprises few moving parts, and can be readily dismantled for the purpose of inspection or replacing of the parts. Additionally, the possibility of the material clogging in, the casing or the pockets of the measuring wheel is precluded, due tothe swinging hammer 26 and the reciprocating agitatoril. In the modified form of the invention illustrated in Figure l, the feeder is substantially the same as that previously described with the exception that the casing or housing 54 comprises separate sections which are secured'to a base plate or bottom 55 by any suitable means such as the bolts 56. The plate 55 is connected to the inclined sides 57 of the supports 58 by the bolts 5.). The end gate 60 in addition to being operated by the pinions 61 carried by the shaft 62, is also provided with a scale 63 so as to indicate the distance the end gate is raised from the bottom of the casing upon the actuation of the operating wheel 64. A clamp 5 carried by a screw (36 threaded to one side of the casing engages the wheel 6i so as to maintain the end gate in any predctcrmined position relative to the bottom of the casing. The measuring wheel (not shown) is operated within the casing by a pulley 6T operatively connected to the drive shaft 68 by a lever 69. A removable cover 70 permits access to the interior of the casing. The material is conducted to the measuring wheelthrough the inlet opening 71 where it is measured and delivered to the outlet opening in substantially the same manner as that previously set forth.

It is'to be understood that the forms of the invention herewith shown and described are merely illustrative of preferred embodiments of the same, and that such changesas fall'within the purview of one skilled in the H art may be made without departingfrom,

nsreeeo the spirit" oft-heinvention and the scope of outlet openingsgan inclined drive shaft extending through thebottom of the casing, a Wheelkeyed to said shaft and having :peripheral pockets inounted'in said casing. a scraper connected to said casing adjacentthe inlet opening, anda movablemember connected to said scraper and engaging said wheel for preventing material from passing around said scraper.

3; In a feeder of :the class described, the

' combination Off a casing having .in'letand 7 outlet openings, an inclined drive shaft extending through the bottom of thecasing, a wheel eved'to'said sha tt and having); pe-

ripheral..pocketsanoiinted in saidcasing, a

scraper'connected to said casing adjacent the inlet openingfmeans contacting said wheel for precluding the material from entoning the pocketsafter they have passed the scraper, and means preventing the .1natcria l adhering to the pockets. i

4. In a" feeder of the class described, the combination of a casing having inletand outlet openings, a Wheel having peripheral pocketsmonnted in said casing, a scraper pivoted to said casing and contacting with the periphery of said wheel. and .a member 'rnova bly connected to said scraper and engaging-said Wheel for preventing material from passing around the scraper. 1

In a feeder of the class described, the combination of a casing having inlet and outlet openings and an inclined base arranged at substantially an angle of t5 to the horizontal, a Wheel journa lled in said casing-and having peripheral inclined pockc ts positionedat snbstantiallv right angles :to sa idinclined base, and means for supply- :ing anv equal amount of material to each of the pockets and preventing the material from entering the pockets after they have passed the inlet opening.

i 6. In a feeder of the class described, the combinationeta casing hating an inclined bottomand inlet and outlet openingsm \vhecl having: inclined peripheral pocket-s journ'alled in said casing, and arranged at substantially right angles ito said inclined bottom, and-means torwsnpplying an equal au'ion-ntyof materialtoleacl1of the pockets nd r c eatingt wa .Et'he pockets alter theylnnc-passed the inlet. opening.

: 'T.- In a iteedcr 0f ithc class described, (the con'ibination ot' a casing haring an inclined bottom, and :inlethand outlet openings, :1 W llQGldlZLVlDQ' inclined peripheral pockets journalled iin=said casing, and arranged at substantially.right angles to iStlld inclined bottom, a scraper movably connected to the casing adjacent the inlet opening and contacting with said viheeL-and means for prcventing material escaping through the casing between the scraper and the avheel.

'8. In a feeder of the class described. the combination *of a casing having an inclined bottom, and .inle .and outlet openings, a Wheel having inclined zperiphcral pockets journalled :in said casing, and arranged .at substantially right angles to said inclined bottom, a scraper irovably connected to the casing adjacent the inlet opening: and contactinp; Withsaid *WllOQl, means for preventing material escaping through the casing: between the scraper and the Wheel, and means for forcing; the material from the pockets as they approach the outlet opening. i9. [11 a feeder of the class described, the combination of a casinghaving an inclined bottom and inlet and outlet openings, a shaft extending into the interior of the easing, a Wheel having: inclined; periPhe'al pockets secured to said shaft, and arranged at substantially rightangles to said inclined bottom, means for rotating; said shalt, a scraper pivoted to the casing: adjacent the inlet opening and contacting with said Wheel and a movable member connected to said scraper forpreventingmaterial from passing around the scraper.

10. In a feeder of the classdescribed, the combination of a casing having an inclined bot om and inlet and outlet openings, :1 Wheel having inclined peripheral pockets .journallec'l in said casing, and arranged at substantially right angles to said inclined bottom, ascraper pivoted to said casing ad- :jacentthe inlet opening andcontacting with the periphery ofsaid wheel, a movable member connected to said casing for preventing material from passing around the scraper, means yieldabhv maintaining said movable member in position, and means agitation the material delivered to the casing.

ll. In a feeder of the class described, the combination ot a casing baring an inclined bottom and inlet and outlet 'OPQHlJH a shaft extendinp through the bottom oi said casing, a Wheel having peripheral pockets keyed to said shaft, means for rotating said wheel, a. scraper adjacent said inlet opening. and a movable member pivoted to said scraper .for preventing material from pass ingaroundthesame.

1-2.. Ina fieeder of the class describeththe ,colnlai ationpt a casing having an inclined bottom and inlet and outlet openings, a shaft extending through the bottom of said casing at substantially right angles thereto, a wheel having peripheral pockets keyed to said shaft, means for rotating said Wheel, a

scraperadjacent said inlet opening, and a movable member pivoted to said scraper for preventing material from passing around the same. 7

13. Ina feeder of the class described, the combination of a casing having an inclined bottom and inlet and outlet openings, a shaft extending through the bottom of said casing, a Wheel having peripheral pockets locked to said shaft, said pockets being positioned at substantially right angles to the inclined bottom, means for'rotating said Wheel, a scraper adjacent said inlet opening, a movable member pivoted to said scraper for preventing material from passing around the same, and an agitator in said casing for loosening the material delivered thereto.

14. In a feeder of the class described, the combination ofa casing having an inclined bottom and inlet and outlet openings, a shaft extending through the bottom of the casing at substantially right angles thereto, a Wheel having peripheral pockets keyed to said shaft, a scraper connected to said casing adjacent said inlet opening, a member pivoted to said scraper for preventing material entering the pockets after they have passed the scraper, and means adapted to engage said Wheel for forcing the material from the pockets as they approach the out let openin 15.- In a feeder of the class described, the combination of a casing having an inclined bottom and inlet and outlet openings, a rotatable shaft extending through the bottom of the casing at substantially right angles thereto, a Wheel locked to said shaft-having spaced apart tapered lugs on its inner periphery, a hammer pivoted to the casing, a measuring Wheel having peripheral pockets rotatable With said shaft, means for rotating said Wheels and bringing said hammer into engagement With said lugs on the inner Wall of the measuring Wheel, means for controlling the delivery of the material to said casing, a scraper hinged to the casing, and a member pivoted to said scraper for preventing material entering the pockets after they jha-ve'passed the scraper.

16. In a feeder of the class described, the combination of a casing havingan mchned bottom and inlet and outlet openings, a rotatable shaft'extending through the bottom of the casing a-t-substantially right angles thereto, a Wheel locked'to said shaft having spaced apart tapered'lugs on its inner periphery, a hammer pivoted to'the easing, a measuring Wheel having peripheral pockets rotatable with said shaft, means for rotating said Wheels aaid'hringing said hammer into alternative engagement with said lugs and the inner wall of the measuring Wheel, means for controlling the delivery of the material to said casing, a scraper hinged to the casing, a member pivoted to said casing, means yield-ably maintaining said scraper in position, and means for agitating the material as it enters the casing.

17. A feeder of the class described having in combination a pair of spaced supports comprising horizontal bases and inclined parallel sides, a casing having inlet and outlet openings secured to said inclined sides, a measuring Wheel journalled in said casing having peripheral pockets, a scraper adjacent the inlet opening, and means preventing material entering the pockets after they have passed the scraper.

18; A feeder of the class described having in combination a pair of spaced supports comprising horizontal bases and inclined parallel sides, a casing having inlet and outlet openings secured to said inclined sides, a measuring Wheel journalled in said casing having peripherallpockets, a scraper adjacent the inlet opening, means preventing material entering the pockets after they have passed the scraper, and movable means within the casing adapted to engage the inner periphery of said measuring wheel for preventing the material adhering to the pockets. 7

19. A feeder of the class described having in combination a pair of spacedsupports comprising horizontal bases and inclined parallel sides, a casing having inlet and outlet openings secured to said inclined sides at substantially an angle of forty-five degrees to the horizontal, a measuring Wheel journa-lled in said casing having peripheral pockets, a scraper adjacent the inlet opening, means preventing material entering the pockets'after they have passed the scraper, and movable means withinthe casing adapted to engage the inner periphery of said measuring Wheel for preventing the material adhering to the pockets.

20. A feeder of the class described having in combination a pair of spaced supports, comprising horizontal bases and inclined parallel sides, a casing having inlet and outlet openings securedto said inclined sides, a shaft extending through the bottom of said casing at substantially right angles thereto, a measuring Wheel locked to said shaft, and having peripheral pockets, means for rotating said Wheel, a scraper pivoted to said casing adjacent the inlet opening, a movable member hinged to said casing for preventing material entering the pockets after they have passed the scraper, reciprocating means for agitating the material delivered to said Wheel, a hammer'pivoted to thebottom of. the casing, and means causriphery of the wheel at predetern'iined points in its path of travel.

21. In a feeder of the class described, the

combination OLE acasing having inlet and outlet openings and an inclined base, a wheel having peripheral pockets positioned at substantially right angles to said inclined base, said pockets having their ends open, the lower ends of the pockets being closed by the base and the upper ends of the pockets being open to permit the escape of air as they are being tilled with material, a retaining scraper contacting with the periphery of said wheel, and means for preventing free flowing material from passing around said scraper.

In a feeder of the class described,

the combination of a casing having inlet to permit the escape of air as they are being filled with material, aretaining scraper contacting with the periphery of said wheel, and means "for preventing free flowing material from passing around said scraper.

23. In a feeder of the class described, the combination of a casing having inlet and outlet openings and an inclined base arranged at substantially an angle of 45 to the horizontal, a wheel having periphet'al pockets positioned at substantially right angles to said inclined base, said pockets having their ends open, the lower ends of the pockets being closed by the base and the upper ends of the pockets being open to permit the escape of air as they are being filled with material, a retaining scraper contacting with the periphery of said Wheel, means for preventing free flowing material from passing around said scraper, a gate in said inlet adjacent said pockets, and means for adjusting said gate when the wheel is in motion.

In testimony whereof I have hereunto set my hand.

i LIACIJEIJILAN.