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Improving th e

23rd August 1932, Page 66
23rd August 1932
Page 66
Page 66, 23rd August 1932 — Improving th e
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Which of the following most accurately describes the problem?

Fluid Flywheel

MHE names of The Daimler Co., Ltd., IA H. Pomeroy and A. Blundell, appear in Patent No. 876,877, which relates to the devices now known as fluid flywheels.

The specification points out that in couplings of the type which is used to transmit power from an engine by means of fluid, there are occasions when heat is generated causing pressure which may result in escape of the fluid, or if this be effectually prevented, may cause distortion of the casing.

To provide a chamber which may contain air for the purpose of relieving this pressure is the main object of the present invention.' The driven shaft is, therefore, formed hollow, several ducts, as shown at 9 lead to the central ring (5) at which place the pressure of the fluid is at its lowest, as in operation the fluid circulates around this ring. The central chamber in the shaft acts as a storage space and as an air chamber.

shows in detail one of the clutches, where it would appear that 27 represents a cup leather, pressure being introduced between the parts 26 and 23, the part 24 being non-rotating, pressure between the rotating and stationary parts being taken by the ball beariugs (30).

The driving shaft, on the left, rotates the inner members of four of the clutches and the outer member of the fifth ; any one can be engaged with its corresponding member to transmit the drive via the layshaft, or, in the case of top gear, direct to the driven shaft, which carries the inner member of the fifth clutch.

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FROM America comes the latest design in lock washers, described in patent No. 376,398, by C. G. Olson, 2501, North Keeler Avenue, Chicago. There does not appear to be any new principle disclosed in the construction of this washer, beyond the fact that a number of edges are employed instead of the single edge used in the well-tried Grover washer.

A PATENT, No. 377,039, of the Daimler-Benz Aktiengesellschaft, Stuttgart-Untertiirkheim, Germany, relates to a gearbox in which four speeds are obtained, one being an overdrive. As will be seen, the upper shaft is formed of three parts, one being a sleeve which runs freely on the shaft that lies within it, and is splined on its outside.

The various gears are obtained as follow :-For first speed the gear 16 engages with the pinion 15; the second speed is produced by the engagement of the wheel 14 with 13, the direct drive being brought about by the engaging of the dogs 17, whilst the overgear, or fourth speed, is produced by throwing over the lever 19, whereby the dogs 18 are uncoupled and the clutch (11) is connected with the gear 10.

The drive is then through the two pairs of constant-mesh wheels, the splined sleeve and the sliding gears running free.

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