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BEST AVAILABLE C675? NOV. 8,1938. 5 CAR-rung; ' 2,135,882 LOADING MACHINE Filed Nov. 21. 1955 3 Sheets-Sheet l Nov- 8, 1938. 2,135,882 F. CARTLIDGE LOADING MACHINE- Filed Nov. 21, 1935 an ' - 5 Sheets-Sheet g Nov; 8, 1938. 2,135,882 F. CARTLIDGE LOADING ‘MACHINE Filed Nov. 21, 1955 _ s Sheets-sheet s 2,135,882 Patented Nov. 8, 1938 UNl'i‘ED STATES PATENT OFFICE 2,135,882 LOADING MACHINE Frank Cartliclge, Chicago, 111., assignor to Good man Manufacturing Company, Chicago, Ill., a corporation of Illinois Application November 21, 1935, Serial No. 50,861 7 Claims. (01. 198-8) This invention relates to improvements in load ing machines of the type adapted to gather and load loose material such as coal from the ground, and more particularly to the gathering element 5 for initially picking up the loose material and moving it onto a conveyer for discharge into cars or the like. The principal objects of my invention are to provide a gathering element of the character de 10 scribed, especially designed to handle material such as ‘coal in a more e?icient manner than formerly. ‘ In carrying out my invention, I utilize the same general principle of clearing the gathering means from material on the conveyer at the upward turning point, as is disclosed in the Shanaberger Patent No. 1,680,695, and in a prior application, Serial No. 48,189, ?led November 4, 1935, but im prove upon the means for raising the gathering 20 arms above the conveyer as they move therealong by eliminating the possibility of trapping coal be tween the arms and the raising means and by arranging said means so that the gathering means will carry a minimum amount of coal beyond the 25 conveyer as it turns away therefrom. My invention may be more clearly understood with reference to the accompanying drawings, wherein: Figure 1 is a view in side elevation of a loading 30 machine of the track-mounted type, illustrating one form in which my invention may be embodied; Figure 2 is an enlarged side elevation of the gathering and loading element shown in Figure 1, with certain parts broken away and shown in 35. vertical section in order to more clearly illustrate certain details of my invention; ~ Figure 3 is an enlarged plan view of the load ing element of the machine shown in Figure l, with certain parts broken away and shown in section in order to illustrate certain details of my invention, not shown in Figure 2; Figure 4 is an enlarged sectional View taken substantially along line ll—4 of Figure 3; Figure 5 is an enlarged sectional view taken 45 substantially along line 5—-5 of Figure 3; Figure 6 is an enlarged sectional View taken substantially along‘ line 6—6 of Figure 3; - Figure 7 is an enlarged sectional view taken substantially along line l—'l of Figure 6; and 50 Figure 8 is an enlarged side elevation showing a modi?ed arrangement of the apron between the gathering means. In the drawings, my invention is shown as be ing embodied in a loading machine of the track mounted type, the main elements of which are essentially the same as shown inmy prior ap plication, Serial No. 682,248, ?led July 26, 1933, which. issued as Patent No. 2,066,137 on Decem ber 29, 1936. In the form shown, the loading ma- - chine consists generally of a wheeled truck or. UT main frame [0 having a horizontally and vertical 1y swingable gathering and loading element H mounted at the forward end thereof and extend ing forwardly therefrom, and a discharge con veyer l2 extending from beneath the rear end of . said loading element and upwardly and rearward ly therefrom. Said discharge conveyer is ar— ranged to overhang the rearward end of said main frame for discharging material into suitable re ceiving means, such as mine cars or the like. The gathering and loading element ll may, as usual, comprise an inclined conveyer frame I4 pivotally supported between transverse trunnion supports l5, l5. Said trunnion supports are dis posed at the forward end of said main frame and 20 are pivotally movable with respect thereto about a vertical axis to permit said conveyer frame to swing in a horizontal plane. The mechanism for effecting swinging movement of said trunnion supports and for pivotally swinging said conveyer frame on said trunnion supports is not herein shown or described since it forms no part of my present invention and is fully disclosed in my aforementioned application,‘ Serial No. 682,248, 30 now Patent No“ 2,060,137. Thev inclined conveyer frame 14 includes a trough-like conveyer section l6 and a forward gathering section ll connected thereto in a suit table manner. Said forward gathering section has an apron I8 extending laterally beyond op 35 posite sides of the conveyer trough section and downwardly therefrom in an inclined plane so that the‘ forward end thereof may engage the ground. A plate l9 forms the bottom of the conveyer section l6. Said plate extends forwardly in an ‘inclined plane which, as herein shown, is sub stantially parallel with, but below the upper sur faces of the apron [8 at the forward end of said 45 inclined conveyer frame. The moving parts of the conveyer consist of a pair’ of parallel-spaced endless chains 20, 20 hav~ ing material engaging ?ights 2 I, 2| carried there between at suitable intervals. vThe lower run of said chains extends downwardly beneath the 50 plate l9 over adjustable idler rollers 24, 24 for taking up excessive slack in said chains, under idler rollers 25, 25, and around sprockets 26, 26 on a transversely extending shaft 21 immediately forwardly of the front margin of the plate I9._ 55 2 2,135,882 From thence said chains move upwardly over said plate on guide rails 28, 28 disposed along opposite sides of said plate. Immediately in front of the sprockets 26, 26 is a curved plate 29 substantially conforming to the form of the chains 20, 20 as they round said sprockets, and terminating at the delivery edge of said inclined apron, which edge is herein shown as being forwardly of the shaft 21. A bottom 10 plate 32 extends across the bottom of the forward end of said frame, and the forward edge of said apron and said bottom plate are notched adja cent the central portion thereof, as is'indicated by reference character 33, to-eliminate a dead 15 space between said gathering arms in the central portion of said apron in a manner which has been described in a prior application, Serial No. 580,755, ?led December 14, 1931-, now Patent No. 2,073,142. It should herein be noted that the angle of deposited thereon, said means includes an ar rangement whereby said conveyer is moved faster than said arms, so as to move material away from the arms and also includes an improved means for raising said arms above the conveyer at their outward turning point utilizing the same princi ples disclosed in the Shanaberger Patent No. 1,680,695. As herein shown, each gathering arm 31 is pivotally connected to the chain 35 by means of a pivotal pin 54 secured at its ends to a pair of 10 spaced lugs 55, 55 extending outwardly from suit able links of said endless chain (see Figures 2 and‘3)‘. The pivotal axis of said arms, as herein shown, is parallel to the path of travel of the chain 35 to permit the arms to be pivoted up— 15 wardly with respect to the apron | 6. Said gathering arms are lifted away from the coal on the conveyer at their upward turning point by means of a cam member 56 extending upwardly along the inner side of each apron from 20 a point disposed adjacent the forward- end- of ‘inclination of the bottom plate 32 withrespect to the ground is such'that when the forward said conveyer. end of said apron engages the ground and the ing face'disposed adjacent the forward end of floor is relatively level, said bottom plate will be Each cam member has an enter the conveyer which is herein shownas being sub 25 inclined upwardly with respect to the ground. 'stantially vertical. The engaging face of said Thus, the under portion of said conveyer frame cam member is inclined downwardly towards the conveyer and gradually decreases with respect to a horizontal-plane as-saidcam member extends along the conveyer for raising the gathering arms rearwardly of the forward end-of said apron may clear the ground and said apron may follow an uneven bottom and be more readily wedged under the material it is desired’ to load. The gathering means consists of a pair of end less chains 35, 35 orbitally guided in chain guides 36, 36 and having a‘ plurality of gathering arms 31, 37 extending laterally therefrom. Each of said chain guides-is mounted on the apron |8 and extends along opposite-sides'of the conveyer from points disposed forwardly of the forward end thereof in rearward diverging paths, so that said gathering arms- may diverge laterally away 40 from the conveyer as they extend therealong and swing in paths extending forwardly beyond sai apron at their lower turning point. ' The drive for each of the endless gathering chains 35, 35 includesa drive sprocket 39 mounted 45 on each end of the shaft 2‘! outwardly from the sprockets 26, 26'. Each sprocket 39 drives apar allel-spaced sprocket 40 on a transversely extend ing shaft “by means of a drive chain 43. The shaft Al is journaled-at its inner end in a suitable ball bearing 44 mounted in the upper and lower halves of a housing and bearing support member 45. Said housing is secured to the sidesof the ‘conveyer frame I4 andis split in an inclined plane which is herein shown as substantially par allel to the plane of the conveyer, so said chain and sprocket and parts driven therefrom may readily be accessible for inspection or repair. The outer end of said shaft is mounted in a bear ing 46 carried in a bearing support member 41 60 extending across and mounted in the upper half of the housing 45. A bevel pinion 48 is keyed on the shaft 4| outwardly from the sprocket 40 and meshes with and drives a bevel gear 49 keyed on the lower end of an upstanding shaft 50. Said 65 shaft ismounted at one of‘ its ends in ‘the hous ing 45 on a suitable bearing 5| and is mounted at its opposite end in a bearing 52, which bear ing in turn is mounted in an upper portion of the chain guide 36. A sprocket 53 is keyed to 70 said shaft intermediate the bearings 5| and 52 and meshes with the endless chain 35 for driving said chain. Referring now in particular to the novel means for clearing the gathering arms from material 75 on the inclined conveyer, after the latter has ‘been to a-maximum as they turn away from the con veyer. Said cam members being inclined to 30 wards the conveyer, permit material whichmight fall thereon or be moved thereon by said gather ing arms to slide down the inclined surface thereof onto the conveyer. Each gathering arm 31 is provided with an in wardly disposed engaging end 51 disposed be neath its pivotal axis, which engaging end is herein shown as being formed integral with said arm. Said engaging ends of said arms are 40 adapted to-engage the engaging face of the cam member. 56 to cause said arms to gradually rise above the conveyer as they move therealong. A ?at cam member 59 is provided for support— ing each gathering. arm as it turns away from the conveyer and moves downwardly along ‘the outer edge of the apron I8. As herein shown, said ?at cam member extends around and conforms to the rearward endlof'the chain guide 36 and its rear ward portion is formed substantially like the in side of a segment of a truncated cone. As said flat cam member extends downwardly along the outer side of the apron l8, its angle of inclina tion with respect to said apron decreases for- per mitting the arms to gradually pivot downwardly 55 with respect to said apron and rest on said apron. It should herein be noted that the cam member 56 overlaps the cam member 59 a slight distance at the initial turning point of the arms away from the conveyer, and that said last-mentioned cam 60 member is provided with an entering edge 60 which is so inclined with respect to said gathering arms that material carried upwardly by said gathering arms will be de?ected thereby onto the conveyer, instead of being carried around to the 65 retreating side of the apronin the trough-like formationformed by said ?at cam member. Suitable means are provided for positively re straining pivotal movement of said gathering arms while traveling downwardly along said apron 70 which operate on a principle somewhat similar to that shown in my prior application, Serial No. 48,189; Said means includes an abutment or ‘shoulder 6| disposed above the pivotal axis of __ 'said'gatheringarm; which is adapted to engage "7'5 2,135,882 an upper side of the chain guiding member 36. ment relative to its plane of travel, and means The lower side of said chain guiding member is for positively raising said arms as they approach adapted to be engaged by the engaging face 51. It should herein be noted that the upper portion of the chain guiding member, disposed adjacent their upper turning point comprising a cam mem the cam members 56 and 59, is inclined in a manner corresponding to the angles of ‘inclina tion of said cam members to permit elevation of said gathering arms by means of said cam inclined downwardly towards said conveyer and 10 members. A direction-changing device '63 having means rotated thereby for positively restraining pivotal movement of said arms at their lower turning point is provided at the forward end of each chain 15 guiding member 36. As herein shown, said di rection-changing device is in the form of a sprocket journaled on a suitable bearing member 64 mounted in said chain-guiding member in a usual manner. A rotatable member 65, such as a 20 disk, is disposed beneath said sprocket and r0 ber extending along said apron adjacent said conveyer, said cam member having a cam surface 5 adapted to be engaged by abutting surfaces of said gathering arms disposed beneath the pivotal axes thereof, and another cam member forming a continuation of said ?rst-mentioned cam mem- 10 ber at the turning point of said arms away from the conveyer, said second-mentioned'cam mem ber being inclined upwardly from said apron in a direction away from said chain and extending around the rearward turning point of said gath- 15 ering arms, and said second-mentioned cam member being provided with an inner edge adja cent sai'd conveyer disposed at such an angle with respect to said gathering arms as to wipe material from said gathering arms, as said arms 20 tated thereby and is adapted to be engaged by approach, said cam member, and de?ect said the engaging surface 57 of each gathering arm. material onto said conveyer. 2. In a loading machine, a conveyer, an inclined A similar rotatable member 65 is disposed above said sprocket and rotated thereby. Said last > apron extending along eachside of said conveyer and beyond the forward end thereof, spaced or- 25 mentioned rotatable member is of a larger diam bitally guided endless chains movable along said eter than the width of said chain guiding mem ber and is adapted to be engaged by the shoulder apron having gathering arms pivotally mounted 6! of the gathering arms 37, 3?. It is thus ap-' thereon for vertical movement relative to the parent that when the surfaces 51 and 6! are in 30 engagement with the respective disks '65 and 66 that said gathering arms will be held from piv ‘ otal movement in an extended position with re spect to said chain. - The modi?ed form of my invention shown in 35 Figure 8 differs from the form previously de scribed in that the gathering section has two lat erally extending aprons 6?, 67 at opposite sides of the conveyer trough section and in that a channel, generally indicated by reference charac 40 ter 68, is provided between these aprons for mov— ing material onto the conveyer. Said channel is formed by a relatively low inclined plate 59, in clined at a lesser angle with respect to the ground than said aprons, which terminates at the curved plate 29 in a plane which is substantially normal to the conveyer as it turns around the sprockets 25, 28. The forward edge of said inclined plate is notched in a manner similar to the apron I 8 and the sides of said plate are joined with said apron in a suitable manner to form a channel having closed sides leading to the conveyer below the upper margins thereof. Thus, material is continuously moved toward the conveyer along said channel by the gathering 55 arms and the ?nes collected therein form in ef fect a cushion for the larger lumpsof material which reduces breakage thereof, as has been pre viously described in a prior application, Serial No. 49,004, ?led November 9, 1935, now Patent No. 60 2,107,469. While I have herein shown and described one embodiment of my invention, it will be under; stood that the construction and arrangement of the various parts may be altered or changed without departing from the spirit or scope there of. Furthermore, I do not wish to be construed as limiting myself to the speci?c form illustrated herein, excepting as it may be particularly lim ited in the appended claims.‘ I claim as my invention: 1. In a loading machine, a conveyer, an in clined apron, an endless chain movable along said apron adapted to gather and discharge ma terial onto said conveyer, gathering arms piv 75 otally mounted on said chain for vertical move plane of travel of said chains, and means for pos itively raising said arms as they approach their 30 upper turning points away from said conveyer comprising cam members on the inner sides of said apron extending along said conveyer, said cam members having cam surfaces inclined down wardly towards said conveyer adapted to be en- 35 gaged by abutting surfaces of said gathering arms, and other cam members forming con tinuations of said ?rst-mentioned cam ‘members at the turning point of said arms away from the conveyer, said second-mentioned cam members 40 being inclined upwardly from said apron in a direction away from said chains and extending around the rearward turning point of said gath ering arms, and being provided with inner en tering edges adjacent said conveyer disposed at 45 such an angle with respect to said gathering arms as to wipe material therefrom, as said arms approach said cam members, and de?ect said material onto said conveyer. 3. In a loading machine and in combination‘50 with an elevating conveyer, an apron disposed above and extending along said conveyer and having a discharge end extending across the for ward end of said conveyer, gathering means dis- _ posed above said apron and adapted to gather 5” material from the ground and move it along said apron onto said conveyer, said gathering means including a chain guide mounted on said apron, an endless chain guided for orbital movement thereabout and spaced apart gathering‘ arms projecting laterally from said chain over said conveyer and pivotally mounted on said chain for vertical movement relative to its plane of travel, means for restraining upward movement of said arms as they move downwardly along said apron, and other means for positively raising said arms as they approach their upper turning point away from said conveyer comprising a cam member extending along the inner side of said chain guide and spaced outwardly from the outer side of said 70 conveyer and adapted to be engaged by an in ner end of said gathering arm, said cam member having a substantially vertical engaging face be ginning at the discharge end of said apron, which turns to an inclined plane surface inclined to- 75 2,135,882 wards said conveyer as said‘ cam extends along - 'saidchainguide. ‘ . 4. In. a loading machine andrin combination .with an elevating conveyer, an apron disposed ed above andv extending; along said conveyer and having a discharge end extending across the for ward. end of said conveyer, gathering means dis posed, above said apron and adapted to gather material from the ground and move it along 10 said ‘apron. onto said conveyer, said gathering means including a pair of spaced chain guides mounted on said apron and extending along .op .posite sides of said conveyer from a point dis posed forwardly of the forward end thereof, an orbitally guided endless chain movable about each of. said chain guides and spaced apart gathering arms projecting laterally from said chains and .pivotally mounted thereon for vertical move .ment relative to the planes of travel of said 20 chains, and; means for positively raising said arms as they approach their upper turning point away from said conveyer comprising a cam member extending along the inner side of each of said chain guides and spaced outwardly from the outer’sides of said conveyer, said cam members having substantially vertical engaging faces be ginning at the discharge end of said apron, which engaging faces gradually turn to inclined plane’ surfaces inclined towards said conveyer as .30 they extend upwardly along said chain guides. 5. In a loading‘machine and in combination with‘ an elevating conveyor, an apron disposed above and extending along said conveyor and having a discharge end extending across the forward end of said conveyer, gathering means disposed above said apron and adapted to gather material from the ground and move it along said apron onto said conveyor, said gathering means including a chain guide, an endless chain guided 40: for orbital movementthereabout and spaced apart gathering arms projecting laterally from said chain over said conveyer, said gathering arms being pivotally mounted on said chain for vertical movement relative to its plane of travel 45 and-having a depending laterally extending gath ering‘ face disposed beneath the pivotal axis thereof and a bottom surface adapted to rest on and move along said apron, means for restrain ing upward movement of said armsas they move downwardly along said apron, and other means 50 for positively raising said arms as they approach their upper turning point away from said cen veyer comprising a cam member spaced from the outer margins of said conveyer and extending along‘ the inner side of said_chain guide, said cam having a substantially vertical engaging face beginning at thedischarge end of said apron which turns toan inclined plane surface inclined 60 towards said conveyer as it extends along said ‘conveyer to permit material on said cam to roll onto said conveyer and said cam being adapted , to be engaged by an inner engaging end of said arm which is disposed beneath the pivotal axis of said arm. 6. In a loading machinev and in combination 65 with an elevating conveyer, an apron disposed above said conveyer and having a discharge end extending across the forward end thereof, gath ,ering means on the upper side of‘ said apron adapted to pick up material from the ground and discharge it onto said conveyer including a chain guide, an endless chain guided for orbital move ment thereabout and spaced apart gathering arms projecting laterally from’ said chain over said conveyer and pivotally mounted on said chain for vertical movement relative to its plane of travel, each of said gathering arms having a portion extending upwardly from the pivotal axis thereof to restrain pivotal movement thereof beyond a predetermined point, a depending lat erally extending gathering face disposed beneath the pivotal axis thereof and a bottom surface adapted to rest on and move along said apron, 15 means for restraining upward movement of said arms as they move downwardly along said apron, and other means for positively raising said arms as they approach their upper turning point away from said conveyer comprising a cam member 20 mounted on the upper side of said apron and extending along the inner side of said chain guide, said cam ‘member being spaced inwardly from the outer margins of said conveyer and being adapted to be engaged by an inner depending 25 end of. said gathering arm in alignment with the gathering face thereof and having an engaging face which is substantially vertical at the dis charge end of said apron and which turns to an inclined plane surface inclined towards said 80 conveyer as it extends along said chain guide. '7. In a loading machine and in combination with an elevatingconveyer, an apron disposed above and extending along said conveyer and having a discharge end’ extending across the for 85 ward end of said conveyer, gathering means disposed above said apron and adapted to gather material from the'ground and move it along said apron onto said conveyer, said gathering means including a chain guide mounted on said apron, an endless chain guided for orbital movement thereabout and spaced apart gathering arms projecting laterally from said chain over said conveyer, each of said gathering arms being piv otally mounted on said chain for vertical move— 45 ment relative to its plane of travel, means for restraining upward movement of said arms as they move downwardly along said apron, and other means for positively raising said arms as they approach their upper turning point away from 50 said conveyer and holding said gathering arms in such a position as they move around the upper end of said chain guide and thence permitting them to lower to a position parallel with said aproncomprising a cam member extending along 55 the inner side of said chain guide at the edge of said conveyer and turning away from said con veyer around the upper end of said chain guide, said cam member having an engaging face at the discharge end of said apron turning to an 60 inclined plane surface inclined towards said con veyer as it extends along said chain guide and terminating into an inclined plane surface ex tending upwardly from said chain guide around the rearward end thereof to the outer side of 65 said chain guide to form a trough-like cam en gaging the underside of said gathering arms. FRANK CARTLIDGE.