Patent GB-456454-A (GB)
Title: Improved method and means for reciprocating mounting machines on supports
IPC: B60K5/12
Filed: 1935-05-20
Abstract: 456,454. Machinery supports; shaft couplings. AUBAREDE, P. C. A. M. D', St.-Genis Laval, Rhone, France. May 20, 1935, No. 14732. Convention date, May 19, 1934. [Classes 80 (ii) and 80 (iv)] [See also Groups XXXI and XXXII] Machine and engine units of the type having lateral driven shafts 3 are mounted on supports by means of springs and flexible means or yielding blocks, the latter being placed on or near the oscillation axis X-X of the machine, which is the resultant of the actions of the internal torques and of the springs and at a position between the C.G. of the machine at G and the intersection at cc of the said axis and the oscillation axis which is the resultant of the actions of the internal forces and the springs. The invention is specially applicable to the engines of motor vehicles. In the form shown in Fig. 1, the supports comprise side arms a resting on spiral springs 5 and a bracket 8 resting on a yielding block 6, a device 13 adapted to limit the amplitude of oscillation being fitted at one end. The device 13 consist of a rubber block 10, Fig. 4, carried by a sleeve 11 which is bolted to the unit and restrained in its movements by a box 13<1> secured to the frame 7. In a modified arrangement there is a third spring at the end at E and the block 6 is replaced by a hollow block through which passes a rod fast to the upper ends of two brackets secured to the gear-box 2. In a further modification, Fig. 8, the rod is held between rubber blocks 21, 22 confined in a strap 23 bolted to the box 2. Vertical play is limited by fibre stops 24, 25. The elastic blocks and rod may be replaced by a horizontal flexible band, and the side springs by a spring in the centre line near the stop device 13. An arrangement comprising a single spring 29 and an elastic connecting device D is shown in Fig. 10. The latter comprises a rubber block 30 compressed under a flanged plate 31 which is connected to the box 2 by a nut and bolt 33, the latter passing up through a hole in a transversal 7<1> of the frame and through the block 30. Shear members 34 are enclosed between the flange of the plate 31 and a ring 32 secured to the transversal 7<1>. An alternative form of this device is shown in Fig. 12. In Fig. 13 a bracket 44 is shown bolted to the box 2 and connected to the transversal 7<1> by a rubber block 42 and a flexible band 43, the movements of the latter being limited by plates 46, 47. A flexible coupling is preferably introduced into the transmission. Several suitable forms are described. In one a layer of rubber 51, Fig. 15, is enclosed between corrugated annuli 52, 53, one of which is secured to a fly-wheel 54 and the other to a driven shaft 56. Pins 58 screwed into the fly-wheel project into slots in the disc 531 to limit the extent of the oscillations. The elastic material, in other forms, is located between corrugated discs, Fig. 19, the depth of the grooves diminishing towards the centre. The thickness of the material may diminish toward the centre. Hollow shafts 67, 68, Fig. 22, may be connected by blades 69, 70. The point cc and the axis X-X may be determined as explained in Specification 413,092. Specification 429,667, [Group XXVIII], also is referred to.