Patent GB-452677-A (GB)
Title: Improvements in and connected with threshing machine frames
IPC: A01F15/04
Filed: 1935-05-31
Abstract: 452,677. Road-vehicle undercarriages; spring-suspensions. RAUSSENDORF, H., Singwitz, Bautzen, Germany. May 31, 1935, No. 15938. Convention date, Aug. 25, 1934. [Class 108 (ii)] [See also Group I] The under carriage of a thrashing- machine consists of a seamless drawn steel pipe 1 arranged between the wheels 2, 3, and rigidly carrying two substantially U - shaped bars or straps 8, 9, to which the sheet steel sides 16, 17 of the machine are connected by electric welding. The straps are built up in channel section by electric welding. The front end of the tube 1 is carried by the steering axle 4 on which the wheels 2 are mounted through a cushion spring 5, the rear end being supported from the rear axle through leaf springs. The sheet steel sides are provided with slots 20 for the spring supports 21, 22 of the dressing devices. The top cover of the machine is formed by a wooden platform 27. The Specification as open to inspection under Sect. 91 comprises also the method of connecting a metallic straw press frame with the machine frame and the construction of the spring supports at the front and the rear axles. The press frame is provided with a sheet metal member 30, Fig. 5 (Cancelled), which extends into and is welded to the tube 1 this member being stiffened by an arcuate bar 32 and carrying at its rear end angle bars to which a cross-bar 34 is bolted: another cross-bar 36 is bolted to a second angle member 35 secured to the upper edge of the member 30. These cross-bars support the bottom of the press channel 29. Strut members 44 welded to the sides of the press channel extend to vertically disposed plates welded to the ends of a cross-bar 38 welded to the lower side of the tube 1 and also bolted to stiffening members consisting of sheet metal lugs also welded to the tube. The front axle 4, Fig. 9 (Cancelled), consists of a welded box casing 47, 48 carrying stub axles for the wheels ; this casing enters the fork of a U-shaped member 50 and is connected thereto by a pivot pin 51. A vertical pivot pin 54 is welded to the top of the member 50 and enters a socket in a tube 55 carried by the tube 1. The conical cushion spring 5 is interposed between the socket 55 and a disc 56 resting on a bush 57 pinned to the pivot pin 54 ; a holding strap 59 secured to the tube 1 encircles a reduced lower portion of the bush 57. The rear axle also consists of a box-shaped housing 6, Fig. 11 (Cancelled), to which the steel axles are welded : leaf springs 7 bearing on the housing and held thereon by bolts 67 passing through straps 68 carry the U-shaped bar or strap 8 being secured. thereto by U- bolts 66. Guide bars 69 extend downwards from the tube 1 between slightly convex guide surfaces 71 welded to the box shaped housing 6. Inclined struts extend forwardly from the housing and are pivoted to a pin carried by the tube 1. To hold the machine firm during thrashing, wedges 79 are driven between the wheels 3 and brackets 80 welded to the strap 8: turn buckles 81 extending between the strap 8 and the housing 6 prevent the springs being damaged by the wedging. This subject-matter does not appear in the Specification as accepted.