Patent GB-191226451-A (GB)
Title: Improvements in Truck Tipplers or Means for Discharging the Contents of Trucks and like Vehicles.
Inventor: PROVAY GIUSEPPE ANTONIO PIETRO
Filed: 1912-11-18
Granted: 1913-11-13
Abstract: 26,451. Provay, G. A. P. Nov. 18. Staiths and elevated structures; r o t a r y tipplers. - Comprises detail improvements in the apparatus described in Specification 10,632/12 in which a rotary tippler is hoisted prior to discharging. T h e various rings constituting the tippler frame are connected together by three longitudinal members 5, Fig. 1, of T or other suitable section. The thrust of the tippler in a longitudinal direction is taken up by rollers 11, 12 running in the guideways 2. The rollers and the guide wheels 1 may be kept in contact with the guide-ways by mounting them on pistons or their equivalent working in cylinders or guides against springs. The timber lining 15 at the side of the tippler is fixed to vertical beams 16, Fig. 6, secured to the lining- plates 17 of the rings 22 of the tippler, and is strengthened by channel irons 21. The outer ends of the lining are stayed by angle-brackets 20. The plates 17 may be of V-section above the timber lining to prevent material from lodging thereon. The timber lining may be resiliently mounted. The lining 15 is slotted at 23 to allow the passage of the clamping-bars 24. These bars move at the ends in vertical guides 32, and engage the top of the truck 19, as the tippler rotates, owing to the action of weighted levers 25, 26 connected to the bars by links 29 through levers 28, 33. The lever 33 is geared to the lever 26 by spur-wheels. In a modification the weighted levers are dispensed with, the levers 28, 33 being connected by a system of equalizing links and levers, and the spindle geared to the lever 33 being operated upon by an arm connected by a cord to a counterweight. The shoot 60, which is automatically brought into position beneath the tippler during hoisting and prior to discharging, is operated by ropes 66 passing round differential drums 62. The other ropes 68 on these drums, instead of being connected to the arms 78 on the main counterbalance weights 65, pass through the arms and carry counterweights 69. A counterweight 79 may be formed integral with the shoot 60. The fixed shoot 61 has a curved surface 81 at its upper end. Marks may be provided on the tippler and on the head of the frame 4, which, when opposite one another, indicate to the driver that the tippler is in position for discharging. A plate 84, Fig. 11, may be fixed in the tippler to direct the material into the shoot 60. Three methods of suspending the tippler in the bights of the hoisting and tilting ropes are described. The winding-drum of the tilting-ropes may be formed with a conical part for partly rotating the tippler during hoisting to bring the truck 19 into contact with the timber lining 15. A further conical part may be provided for automatically performing the tipping operation. The truck 19 may be moved into contact with the lining 15 by a counterweight 95 attached to the carriage 93 and normally resting on a bolster 97. The carriage 93 may be provided with means for retaining it on its track during rotation of the tippler. Fig. 11 shows a modification in which the tippler revolves in annular guiding frames 85 provided at each end and having shoes 92 running on vertical guides 90 on the superstructure and on the back of the shoot. With this arrangement the tippler may be revolved at any desired height.