Patents Completed.
Page 22
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Lubricating Caterpillar Tractor Tracks. A Heavy-fuel Carburetter.
Pressed-steel Wheels, Equalizing Wheel Pressures.
Copies of complete specifications of the patents published on this page can be obtained from the Sales Branch, Patent Office, Holborn, "VC., at the cost of sixpence for each specification.
CATERPILLAR TRACTORS, LTD., No. 12,796, dated 7th September, 1915.—In a caterpillar tractor the weight of the vehicle is borne by a truck -having rollers which travel on the inside circumference of the endless track. This invention provides for the lubrication of these rollers, as shown in the detailed view. An oil tank with a hinged cover is provided on the truck, and the oil is delivered from the bottom of this tank through a pair of outlets on to the foremost of the rollers. These distribute the oil to the track rails, and the latter, in turn, transmit it to the succeeding rollers, so that the whole system is lubricated.
L. T. BARNES AND E. H. MADISON, No. 3843, dated 10th March, 1915.—This carburetter is adapted to use heavy fuels such as kerosene and alcohol by a special arrangement of heating-jacket. The float-feed chamber is mounted beside the choke-tube, and •communication between them is established by a. 'vertical channel which opens into the float-feed chamber at a.buut the normal leuel of the liquid. A heatingchamber is arranged to surround the choke-tube and the floatfeed chamber; thetinlet and outlet being on opposite sides of it so that the ;heating medium flows straight through around these two chambers.
The inlet and outlet are further arranged on the same horizontal plane so that the maximum heating effect is obtained at. the jet and at the surface of the liquid in the floatfeed chamber. The float is of such dimensions that it nearly fills the chamber and leaves only a thin layer of liquid against the walls of the float-feed chamber so that this is easily and rapidly heated.
By heating the fuel in the float-chamber, it is rendered more easily vaporizable; by heating the mixture-chamber, liability to condensation is reduced.
W. J. M. MELLERSH-JACESON (DETROIT PRESSED STEEL Co.), No. 17,208, dated 7th December, 1915.—In making pressed-steel wheels for heavy vehicles, the gauge of the blank is varied, so that while giving the requisite strength to the various parts, the weight is not unduly increased.
The drawing shows one blank, and a complete wheel formed of two complementary parts. The hub-portions are of relatively heavy gauge, one being extended outwardly as a tube and the other being bent in close to the first hub and securea to it by welding or any other convenient means. The spokes are made of much thinner material, but the rim is made of thicker material like the hub. The rim is preferably of channel-section so that it forms a suitable seating for a solid tire. Cross-bolts may be provided inc the rim, to secure the side plates or other attaching means for the tire.
A. E. ComtaNa, No. 8044, dated 31st May, 1915.—The object of this invention is to equalize the pressure of the different wheels of heavymotor vehicles. It is achieved by mounting each • wheel separately, one arrangement being
shown in the drawings. Each wheel is mounted on a short axle carried in axle-boxes, which are free to move vertically. in horn-plates under the control of separate springs. The wheel can thereiore tilt out of the vertical to suit the camber of the road. This construction is suitable far chain-driven vehicles, and for live-axle vehicles it is only necessary to insert suitable universal joints in the live axle. The driving sprocket ID mounted on a link which is radial to the driving pinion on the chassis. When the horn-plates are not used, suitable radius rods' take the driving thrust.