Patent GB-421409-A (GB)
Title: A new or improved appliance for marking lines on surfaces such as those of recreation grounds, playgrounds, hard gamescourts, roads, and the like
IPC: A63C19/08
Filed: 1933-06-15
Abstract: 421,409. Appliances for marking sports grounds and road surfaces. HOWARD, S. A., 81, Twickenham Road, Kingstanding, Birmingham. June 15, 1933, No. 17055. [Class 132 (ii)] Appliance for marking straight or curved lines on sports grounds and roads comprises a container for marking material; an articulated wheeled support capable of hand propulsion ; a marking device movable with the container ; and a mounting of the container on the articulated wheeled support which enables the container and marking device to be raised or lowered. The appliance comprises a wheeled container 3 for marking material with discharge conduit 17 and attached distributing brush, roller or rubber flap 4, all adapted to be lowered into working position through the linkage and spring system 1, 2, 5, 8. The pair of links 1 are connected by a cross-bar 32 having a cranked portion 41 engaging in the inoperative position, Fig. 1, of the appliance with an abutment 36, and in the operative position, Fig. 2, with a flange 37 of the discharge conduit. A drip tray 34 is frictionally held for easy detachment by hook shaped rims 35 on bars 31 hung at their forward ends on cross-bar 32 and resting at their rear ends on a member 33 fixed between rear links 2. The orifice 19 of the discharge conduit 17 can be closed or varied by the hinged flap 18, Fig. 3, coupled by Bowden wire mechanism 21 or rods to an operating lever 22, Fig. 7, mounted on the propulsion handle 10 and having its range of movement adjusted by the nut 24. The wire 21 or rods may be housed within the handle 10. The brush 4 of bristle or rubber is mounted in a U-shaped clamp 25 hingedly mounted at 30 on the wall of the discharge conduit 17 for passage over obstructions, the brush being returned by spring and gravity action. Various sized brushes and U-shaped clamps 25 are provided for marking lines of different widths. To facilitate observation of the line to be marked the propulsion handle and discharge conduit may be off-set from the centre line of the container. To facilitate following a partly obliterated line an arm 12, Fig. 9, is provided, and for following curves the arm 12 is in two sections 13, 14, Fig. 8, one section 13 being pivoted to the container 3 and the other section 14 being hinged on the section 13. The arm 12 is retained by friction in the adjusted position and a detent 15 holds the sections together for marking straight lines. The rear wall 16 of the container is sloped and the front wall may also be inclined. For marking a curve from a centre a radius arm comprising a cord or cable can be attached to either side of the appliance through a hole in a wheel axle or in the pin holding the wheel on the axle as at 39, Fig. 6. For removing dust from the surface to be marked a rotary brush, driven from the road wheels 7, or a rubber strip placed at an angle to the direction of travel may be employed. The brush 4 is substantially in a plane passing vertically through the road wheel axles so that considerable lateral movement of the handle 10 produces negligible transverse displacement of the brush. Provision can be made for using a second marking colour by a supplementary funnel shaped or cylindrical container 38 within the main container 3 and connected by a screw thread with the discharge conduit 17. A plurality of supplementary containers 38 may be supplied for use with differently coloured marking materials. According to the Provisional Specification a single road wheel may be employed.