A Timken Differential Arrangement
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A Resume of Recently Published Patent Specifications
INpatent No. 253,450 the TimkenDetroit Axle Co., 122, Clark Avenue, Detroit, -U.S.A., describes an arrange: ment of differential and bevel pinion mounting, of the kind where a bearing is situated near the small end of the pinion. In the earlier days of chassis construction bearings so situated were fairly common, but it was found that without undulyenlarging the crown wheel, of reducing the size of the differential. gear, there was not room for a bearing of sufficient size .tol-be. of any
practical use. .
The present invention .would, for its main point, appear to rely on the formation of the side gears of the differential integral with their axles, which, it is claimed, enables smaller wheels to be employed. The housing of the nose bearing of the pinion is formed integral with the right-hand side of the casing.
Another feature of the design is the introduction of the wearing plate (24), which is held in place by the stud (25), thus offering a support to the crown wheel opposite the position where the pinion engages-.
A Vacuum-operated Clutch.
A MEANS for operatingthe clutch of a motor vehicle by vacuum is described, in . patent -No. .353,461, by Pierre Peyruqueou, 35, Rue Ganibetta, Mont-cle-Maraan, Landes, France. The arrangement is one of the type in which a cylinder can be put into communica
tion with either the induction pipe or the atmosphere, thus/ causing vacuum. The valve (4) is operated by the small lever and can cause communication between the pipes 8 and 3. The piston is connected to the usual clutch lever by means of a flexible cable.
A British Bock Double Bearing.
IN bearings of the double tapered-roller type it is well known that a Very accurate adjustment is necessary, so far as the distance apart of the two bearings is concerned, and where heavy wheels are mounted on such bearings it has beeen found difficult to rely on the accuracy of adjustment, when assembling and reassembling.
To hold the pair of bearings permanently too.ether is the_ object of pa.tent , No. 353;787, by British -BockBearings, Ltd, and A. S. MeNaught, both. of Clutha Bearing Works, 120, Cornwall Street, Glasgow.
So far as the bearings themselves are concerned, they are of the well-known British Bock type, but where they meet they have holes bored in them of a kind which are enlarged at the deeper" part
and Countersunk at the mouth. Into these .holes rivets (3), made of ductile metal, are placed and then, by pressure, the rivets enlarge themselves, forming a uniting device.
Double-deck Bus-body Design.
SEVERAL means for arranging stair cases So that they shall be opposite the entrance, which is situated in the centre of the body, are dealt with by the English Electric Co., Ltd. and W. G. 111arlit, in specification No. 353,483. The object is to provide means whereby two streams of passengers may pass simultaneously from their seats, thereby saving time in alighting.
In one instance a single straight stairCaSe is shown, whilst in another ease
the staircase is of the winding type, whilst in a third example two staircases are shown, these winding in opposite directions.
Still Another Lock-nut.
THE comparative merits of split-pins
and lock-nuts having recently been raised, the specification (No. 353,778) of August Sundh, 1, Pine Crest Drive, Hastings-on-the-Hudson, 'USA., is of particular interest. The objects of the invention are to produce a nut which can be rotated on its bolt in a direction which will tend to tighten, but which will induce considerable friction between the nut and bolt if it be turned in the opposite direction.
As will be seen from the drawing, the nut is recessed to accommodate a coiled_ spring and is pressed over so that the Spring cannot escape. The spring is composed of two parts, the inner member being of brass or some metal which will not injure the threads of the bolts, whilst the outer part is of tempered steel. Both the coils have heads formed so that they retain their position, despite the tending towards slackening.
The coils, being slightly smaller than the bolt, will tend to open when turned in one direction, and will grip the bolt if the direction he reversed. Such nuts have the advantage that they can be tightened whenever required, without the trouble of removing At.algit-Ilin