Patent GB-190709493-A (GB)
Title: Improvements in Machines for Sweeping and Elevating Road Refuse and Analogous Purposes.
Inventor: SLEE EDMOND SUTTON
Filed: 1907-04-23
Granted: 1907-10-17
Abstract: 9493. Slee, E. S., and Tremayne, P. April 23. Elevating sweepings into carts; sweeping-machines.-Figs. 1 and 2 show in part plan and elevation a machine, the upper portion of which is shown on a smaller scale in Fig. 3. Front, side, and rear brushes 19, 18, 17 deliver refuse on to a tray 15, mounted on rollers, whence it is taken by elevator buckets 9 up a collapsible duct 10, 11 to an horizontal passage 12, Fig. 3, for dumping into carts &c. This passage may be turned about a pivot 42 by means of a segmental rack and pinion 121, the opening at the top of the duct 11 being closed by a flap 53. The end of the duct carries spring-pressed arms 55 which force the chainwheels 13,14 outwards to tighten the chain, which passes down between sprocket-wheels 37, 38 and guide-pulleys 59 to the lower sprocket-wheels 34, 35, 36, Fig. 2. The tray 15 is suspended by frames 16 and links 122 from the duct 10, which is slotted vertically to ride up and down on the axle 8, from which it is hung by links 24 slotted at 48 to receive clamping-screws carried by the duct. The upper duct 11 is slidingly supported on the axle 8 by arched stanchions 22, Fig. 5, which enter guides 45, and it carries a worm gear 31 for actuating a pinion engaging a rack 25 which is fixed to the lower duct. The stanchions support a frame 33, Figs. 1 and 5, slotted at 47 to receive a clamping-nut 46 carried by the duct 11. By clamping the lower duct at 48 and turning the worm 31, the upper duct may be raised or lowered, while by clamping the upper one at 47, the lower one, which is partly supported by a spring 69, may be raised or lowered. The framing comprises stays 44 for the swivelling fork 2 of the front wheel, and a series of rods joined by movable elbows 95, 96, 98, 99,100, 102, 97, 101, the last two of which are at one side of the machine only. At the front of the machine is a yielding board preceded by a detachable spiked roller 21 which is carried by angular arms 65. These arms may be adjusted with regard to their pivots by clamping-slots and screws, and they support a bar 62 which is slotted to receive the clamping-screws 64 of the bars 63 which support the outer ends of the side brushes 18. The inner ends of these brushes are coupled by universal joints to short chaindriven shafts 113 having their bearings suspended from the frame bars by jointed frames 116, which are pressed downwards by springs. The bearings of the front and rear brushes may be adjusted for wear of the brushes by nuts and slots. The parts are driven from the main axle by a series of small chains which allow the jointed frame to adapt itself to unevenness of the road. The chain 73 is driven by the axle, and drives the brush 17 by sprocket gear and a pinion 79. A pinion on the brush shaft drives the elevator shaft 41 by means of chain gear. The front brush 19 is driven from the shaft 41 by a pair of chains, and it drives the spiked roller 21 by the chain gear shown. The spindle 76, which is driven by the chain 73, turns the side brushes by short bevel-driven sleeves 107 having chain-wheels for driving the shafts 113. The sleeves 107 turn on fixed shafts which are attached to the frame bars and form bearings around the spindle 76. The hubs of the running wheels are coupled to the axle 8 by ratchets and pawls which normally turn the axle only when the vehicle travels forwards, but which may be disconnected for traversing corners. Fig. 4 shows one of the elevator buckets, which have collecting and discharging lips 56, 57 and carry pins 58 for connecting the chain links.