PATENTS SUMMARIZED.
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Another Ford Conversion Unit.
We have to record this week one more addition to the now long list of patented constructions whereby a Ford touring car chassis 1.9 convertible for use as a commercial motor with a capacity for loads of upwards of 10 cvt. In this case a dead load carryina° axle is provided, and is of such a form that. its outer ends provide for the support of the existing Ford axle case, which, with-its ' gearing and shafts, now becomes a countershaft for the final drive by means of
• pinions and internal gears. On these ends also are roller bearings for the road wheels. Provision is made to couple the existing springs ofthe Ford chassis to this dead axle, which also has brackets upon it to which are bolted semi-elliptic springs carrying the framework of the lorry body. For the essential purpose
• of accessibility it. is necessaryto form this axle in 0110 parts, as show': in the drawing. These parts are made ,o over.“ lap one another, ad are secured together by bolts-. The bearings upon ths end of the live axle for the reception ef the road Wheels are nat concentric with those portions of the same axle which. engage with the existing axle case. This eccentricity allows of a suitable gear reduction being made between drive shafts and road wheels, the . driving . pinions being arranged to displace the ordinaiy Ford rear road wheels, and these pinions, owing to the eccentricity, engage directly with the internal gears mounted within the hubs of the road wheels. A feature _worthy of note is the extension of the bosses a the driving pinions within the existing axle case, by which consiruction adequate bearing surface for . these pinions is afforded. • The whole of the inside of each wheel hub forma a goarcase.
It is totally .enclosed. The patentee is C. W. Gillett and the specification No. 114,049.
Two More One-way Motor Ploughs.
We have evidently not yet ex iausted all the possibilities in conneeticn with novelty of design of one-way motor ploughs, as there are two new specifications this week bearing upon tlis subject. The first of these, No. :14,028, T. C. Santler, is simple in construction. The novelties apparently lie in the arrangement of the ground wheels and in the method of lifting and lowering the ploughshares. Normally the uiachine runs upon four wheels, two of which, situated at either end, serve as steering wheels. They are interconnected, and permanent. The other two are ',situated in the centre, one at each side. These two may be coupled to the driving gear, and both, therefore, may be driving• wheels. That one which is on the same side as the steering wheels is the land wheel: it is designed so that it may, if so desired, be entirely removed, the machine then becoming a three-wheeler The other wheel, which runs at the bot tom of the furrow, is carried on a stub axle mounted in born blocks, and fitted with a wheel and screw arrangement enabling it to be lifted or lowered with respect to the rest of the frame. The engme drives to a central axle, and the connection between thisaxle and either or both of the driving wheels is by means of a universally-jointed shaft. The ploughshares are carried at the end of bell crank levers, the motion of which lifts them from the ground or lowers them into it. Both sets of shareil are connected.
The other patent, bearing upon the same subject, No. 114,046, by G. White, is notable from the fact that the inventor endeavours to accomplish every motion —with the sole exception of that of raising or lowering the driving wheels—by utilizing the power of his engine.
Detail Improvements.
C. H. Claude], in specification No. 104,879, describes an arrangement of engine control gear whereby, in addition to opening and closing the throttle valve, the time of opening of the engine valves is also varied in unison. When the throttle commences to close, the time of opening of the induction valve is shortened. It is arranged to open later and close farlier. By a. Modification, the patentee extends the pdn'ciple to the exhaust valves, and in order to Maintain the compression pressure whilst at the same time throttling the induction he obturates the main exhaust passage and at the same time advanees the period of opening of the exhaust valve.
The same patentee, in No. 105,904, describes means of preventing the loss of petrol when the carburettor is overturned. A small valve, mounted upon the cover of the float chamber closes the usual small hole which allows air 'to enter, and a ball valve cuts off the supply of fuel to the jet in the event of such an accident occurring.. Several modifications are described and illustrated in the specification.
Clement-Talbot, Ltd., in No. 114,006, describe a neat, compact arrangement of change speed gear lever, the principal feature being the simple arrangement of
the reverse safety stop. The changespeed gear is of the gate type with Invisible gate, the lever .itself having
• Formed upon it a spherical portion carried in a suitable hearing, whieh is • to all intents and purposes, within the gearbox casing. The change-speed gear is thus' totally enclosed and runs in 'an oi lhath, •
J: S. Staples, in No. 114,843, describes a U-tube arrangement, one leg of this U-tube being subject to the effects of suction in. the induction pipe. The float in the other leg of the U-tube may be coupled either to the indicating gear, so as to show the condition of affairs within the induction pipe at any time, or it may be coupled to an air slide in the carburetter, thus modifying the richness of the combustible gas according to fluctuations
in the engine suction. • A neat vaporizer for paraffin is described by E. C. Enock in No. 114,078. The drawing is almost self-explanatory, the principal advantage being that by the removal of two or three bolts or screws the vaporizer can be entirely dismantled for cleaning purposes.