Patent GB-645949-A (GB)
Title: Improvements in or relating to baling presses
Inventor: MORRISON PERCIVAL HENRY
IPC: A01F15/14
Filed: 1947-12-10
Abstract: 645,949. Baling-presses. FISHER HUMPHRIES & CO., Ltd. Dec. 10, 1947, No. 32624. [Class 94(i)] The invention relates to the type of baling press having an elongated chamber in which material to be baled is compressed by means of a reciprocating ram, a metering device arresting the feed of the material to the chamber after a predetermined quantity has been admitted. According to the invention a traverse frame is mounted for movement transversely of the bale chamber and carries one or more needles each of which has a guide on its free end for receiving string run from one side of the chamber, retaining means being stroke of each needle a doubled portion of string is carried by the guide to the other side of the chamber retaining means being provided at the other side of the chamber for receiving and holding the end of the doubled string length on the return stroke of the needle. In the construction shown, the ram is driven by gearing 30, 29 and a link 28 from a belt pulley 31. Hay is fed by tines 15 of a reciprocating carriage 14 in a shute 12 and is forced into the baling chamber r by a reciprocating head 26 which is coupled by a link 27 to the ram 11. The tines 15 may be swung horizontal on their rearward (inoperative) movement or alternatively the carriage 14 may be lowered, to avoid rearward feed. A clutch 39 which for starting or stopping the movement of the carriage 14 is controlled by a link 23 which is also coupled by a link 24 to the crank arm 22 of a tine-carrying shaft 18 (Fig. 2, not shown) which carries tines. In the position of the link 23 in which the feed is stopped the tines are held in an upward closing position which prevents hay passing to the baling chamber. The arm 19 is loaded to the closing position by a weight 20 the movement of which is limited by a rubber buffer 21. The link 24 is slidable in an eye 25 carried by the link 23 so that rearward movement only of the link 23 is transmitted to the link 24. Forward movement of hay during the formation of a bale rotates a wheel 32 which has a ratchet or free-wheel connection with a shaft 34 journalled in the machine frame. A plate 33, rigid with the shaft 34 carries a projection 37. The link 23 has a notch 40 which engages part of a guide 41 for the link 23 when the latter is in the feed position. On completion of a bale the projection 37 engages a projection 36 on the link 23 so as to raise the link 23. The notch 40 is disengaged and the link 23 moves forwardly under the action of a spring 38 so that the feed is discontinued. A stop pin 43 may be mounted in any of a series of holes A in the plate 33 according to the length of bale desired. The plate 33 is now rotated manually until the pin 43 engages an abutment 42 carried by the link 23. The link 23 is subsequently manually returned rearwardly to its feed position by means of a handle 44. A needle traverse frame 45 comprises upright members 55, 54 (Fig. 3) joined by upper and lower members 49, 46. Needles 51, 52 are mounted on pins 70 rigid with the member 55 which carry respective springs 71 which urge the needles against the member 55 and in the direction of the ram. The traverse frame 45 is manually reciprocable transversely of the baling chamber by means of a handle 56 and in virtue of the mounting of the member 46, which is tubular, between rollers 48 carried by the machine frame. String passes from a supply box 59 through a tensioning device 58 round a roller 53 mounted on the extremity of the respective needle and round the bale B previously formed, to a severed end 64. The tensioning device 58 comprises a guide tube 74 through which the string passes to a roller and associated spring-urged leaf member 76. On completion of a bale when the feed has been stopped by the action of the wheel 32, the traverse frame is drawn across the baling chamber by the handle 56 to the position shown in Fig. 4. The string is then transferred manually from the pulley 53 to a hook 63 on a member 62 the position of which is adjustable relative to the machine frame by means of holes 67 and a pin 65. The string is then severed by a knife 77 to provide one end for manual knotting to the end 64 and another end to be knotted later around the last-formed bale. The adjustment of pin 65 determines the length of the string ends in accordance with the required length of bale. The feed link 23 carries a bridge-shaped member 68, 69 which has a notch in its horizontal portion 69 which is engageable with the member 49 of the traverse frame. The arrangement is such that when the link 23 is in its forward (no-feed) position, the link 23 is locked against movement back to the feed position except when the traverse frame is in its retracted position when a notch 75 in the latter lies in alignment with the feed-link notch. In any other position of the feed link, the traverse frame is prevented from movement since the notch 75 engages the un-notched part of the feed-link bridge-member 69. An intermediate notch 76 on the member 49 is engageable with the feed lever notch in order to maintain the traverse frame central during transportation. The ram 11 is formed with recesses 72, 73 in alignment with the needles.