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Feb. 15, 1938. ‘H. s. JOHNS _ 2,108,488 TUBULAR BELT CONVEYER Filed Nov. 24,‘ 1956 ‘Ov u ' 2 Sheets-Sheet l Feb. 15, 1938. I _ 2,108,488 H'. s. JOHNS TUBULAR BELT CONVEYER 2 Sheets-Sheet 2 Filed Nov. 24, 1956 mUEmIUI' 1-1- 5 - JD 1111:": 5/ Patented Feb. 15, 1938 _ 2,108,488 UNITED ‘STATES PATENT orrlce . -\ . 2,108,488 . '' TUBULAR BELT CONVEYER Henry Stinson Johns, North Grimsby Township, Lincoln County, Ontario, Canada, assignor .to Bancroft Holdings Limited, Hamilton, Went .\ \‘ v worth, Ontario, Canada. a. corporation of On tario, Canada Application November 24, 1936, Serial No. 112,514 5 Claims. (Cl. 198-165) My invention relates to improvements in tubu . lar belt conveyers of the type shown in my United States Patent No. 2,013,242, September 3rd, 1935, and the object of my invention is to provide an 5 opening device therefor which will move towards and contact the outside face of the conveying tube to split it open for theldischarge of ‘contained material. ‘ 2 running face to face to constitute a moving tube, or a unitary tubular belt 3 having a longitudinal slit 4 therein. - As described in my United States Patent No. $013,242, the belts i and 2 receive‘ material in their troughs t and are directed together to form a moving tube ‘wherein the contained material is A further and particular object of my invention ' conveyed. The material is either discharged by 10 is to provide a conveying tube opening device separating the belts at the discharge end of the _ which will not come in contact with the material conveyer, or the material is discharged intermedi 10 ately of the length of the conveyer by means of 'a' being discharged, and another object of my in suitable discharge mechanism as I shall now ‘ ' device of such a character that it can be installed and operated in any My mechanism is designed to discharge mate 15 desired part of the conveying mechanism. describe. - ' V ‘ rial at'the will of the'operator and broadly con— sists of a ‘freely rotatable roller 6 which‘ is posi 15 for opening a tube for the tioned above the pair of belts and designed to be if so desired. > Another object of my invention is to utilize my apparatus as a means ‘ reception of material, My invention consists of an opening device'for /moved vdownwardly so that itspressure against at tubular ‘belt conveyers constructed and arranged the belts splits them open atthe bottom whereby all as hereinafter more particularly described and contained material in the belts‘ is discharged. illustrated in the accompanying drawings “in Which; Figure l is aside elevational view of a hori 25 zontal length of ?exible conveying tube formed by a pair of belts supported by a plurality of pul leys and having my tube opening device posi tloned thereabove, the tube being in the closed position. 30 ' . \ Figure 2 is a similar view to Figure 1, showing the tube opening device in operation, the tube being split open. ' Figure 3 is an inverted plan view of the opened ‘ When the'roller t is vmoved ‘upwardly or away fromv the beltsso that its pressure against the belts is relieved, the bottoms of the belts come to gether under the belt tensions whereby the closed tube is again formed and the contained material carried along to the next discharging point. The contacting faces ‘I and 8 of the belts are formed with interlocking tongues and grooves 9 and it. The lower tongue 9 leaves itsgroove it in the split apart portion of the travelling belts and re-enters the groove as the belts come together. ' ‘ 25 30 It is to be understood that the pressure ex erted by the roller 6 against the belts only splits tube as shown in Figure 2. them apart for a comparativelyeshort distance an enlarged. cross sectional view' through the belts, being taken through the line upon either side of the roller and to insure that 35 the belts remain together for the other portions 4—4, Figure 1. ‘ ' of their travel a pair of grooved pulleys ii are . Figure 5 is a similar view to Figure 4, positioned~ underneath and support the belt on taken through the line 5-5, Figure 2 and either side of the roller 6. The grooves it in 40 ing the discharge (if-contained material. show Figure 6 is a similar view to Figure 4, showing the pulleys it have substantially the same shape 40 a unitary tubular conveying belt instead of the and dimensions as the lower half of the tube 35 _~ ‘”Figure 4 is _ ‘ pair of» belts shown in Figure 4.‘ ‘ ' j Figure 7 is a similar view to Figure 5-wherein 45 the unitary tubular belt is shown split for. the discharge of contained material, and - "Figure8ls ' a cross sectional view through a pair of belts split open at the top for the recep tion of material. 50 _ Like characters of reference indicate corre sponding parts in the di?'erent views in the drawings. " ‘ ‘ formed by the belts so thatv the only portion of the tube that can split open under pressure of the roller is that portion running between the pui leys l i. . The roller 3 is supported and actuated by any 45 suitable mechanism and in the drawings I show it freely contained in the bifurcated lower‘ end it of a pivotally mounted arm M. The upper end of the arm i 1i is pivotally connected to the end of a rod l5 which is, in turn,‘ pivotally connected 50 The type of conveyer to which my device is to the upper end of a swingably mounted hand particularly applicable consists of either a pair 01" lever i8. When the lever i6 is swung in a clock 55 - preformed rubber-like trough shaped belts i and wise direction the roller 6 is swung downwardly to e . exert a pressure against the belts and split them 55 2,108,488 2 open, and when the hand lever I6 is swung in an’ anti-clockwise direction the roller 6 is moved upwardly whereby its pressure on the belts is re lieved and the belts vpermitted to close together again under their qwn tension. In the drawings .1 also show a'hopper I1 for the reception of discharged material. In Figures 6 and 7, I show the belt 3 of unitary tubular form and this type of belt is mounted in 10 exactly the same manner as the tube formed by the pair of belts I and 2 and is also capable of being split apart as illustrated in Figure 6 by a moveable roller 21 having the same operable func tion as the roller 6. The faces I8 and I9 of the 15 split 4 in the belt 3 are also preferably formed with interlocking tongues and grooves 20 and 2|. I ' In Figure 8, I show a roller 22 positioned under neath my pair of belts I and 2 to exert an upward 20 pressure against the belts and split them apart at the top for the reception of material being fed intothe belts as from the hopper 23. In this case I show the roller 22formed with spaced apart rings 24 which constitute a groove for the recep 25 tion of the lower ribs 25 of the belts. The con taining of the ribs within the groove prevents any possibility of the belts accidentally splitting ps0 at the bottom as well as the top. Although the belts I and 2 or the belt 3 can be of any desired shape, I have shown them of the same form as shown and described in my United States Patent No. 2,013,242. In order to obviate any possibility of the belts riding out of the grooves I2 in vthe pulleys II ‘when the pressure of the roller 6 is 36 applied, I have found it in certain cases desirable to furnish upper riding pulleys 26 which bear upon the tops of the belts in the vicinity of ‘the pulleys I I.’ The trough belts I and 2 are furnished with non-stretchable ?exible cores 28, and the tubular 40 belt 3 with a pair of non-stretchable ?exible cores 29, both positioned as shown in the drawings. What I claim as my invention is: 1. In a conveying mechanism, a pliable mov ing material carrying tube having a longitudinally 45 extending slit-like opening through the wall thereof, a plurality of pulleys upon which the tube is suspended and between which it extends, and adjustable means moveable towards the side of the tube opposite said slit to exert a pressure against the tube between pulleys to open it along its slitted side opposite the adjustable means for the reception or discharge of material. 2. In a conveying mechanism, a pliable mov ing material carrying tube having a longitudi nally extending slit-like opening through the wall thereof, a plurality of pulleys upon which the tube is suspended and between which it ex 10 tends, and a tube engaging roller moveable to wards the side of the tube opposite said slit to exert a pressure against the tube between pulleys to open it along its slitted side opposite the roller 16 for the reception or ‘discharge of material. 3. In a conveying mechanism, a pair of rub ber-like belts adapted to normally travel in face to'face contact with each other and having material-carrying cavities in their contacting faces, a plurality of pulleys between which the 20 belts extend, and adjustable means moveable towards the belts between pulleys to exert a pressure against one side of the pair of belts to spread the other sides of the belts apart for the reception or discharge of material. 4. In a conveying mechanism, a pair of rubber like belts adapted to normally travel in face to face contact with each other and having mate rial-carrying cavities in their contacting faces, a plurality of pulleys between which the belts extend, and a tube engaging roller moveable to 30 wards the belts between pulleys to, exert a pres sure against one side of the pair of belts to spread the other sides of. the belts apart for the recep 35 tion or discharge of material. 5. In a conveying mechanism, a pliable mov¢ ing material-carrying tube having a longitudi nally extending slit-like opening through the wall thereof, a plurality of pulleys supporting the tube and engaging its slitted portion, and a tube 40 engaging roller moveable towards the side of the tube opposite to the slitted portion to exert a pressure against the tube between pulleys to open it along its slitted side opposite the roller for the reception or discharge of material. HENRY s'rmson JOHNS.