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Analysis

1 / 244,226
1.518338Device for protecting constructions from bombardments from the air
GB - 23.02.1940
Int.Class B63G 13/00
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
GOFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
13Other offensive or defensive arrangements on vessels; Vessels characterised thereby
 Appl.No 2631638 Applicant MAXIMILIEN HAASE Inventor
518,338. Protective netting. HAASE, M. Sept. 9, 1938, No. 26316. Convention date, Feb. 17, [Class 20 (i)] [Also in Group XXXIII] A protective net for buildings, ships and the like comprises a system of cross cables suspended by springs or like resilient supports above the part to be protected. The net is formed of cross cables 8, 9 attached by means of springs 8<1>, 9<1> to supporting cables 6, 7, which are supported by resilient means 10, 11 from pillars 2. The pillars 2 may be mounted on ball joints and supported by resilient stays. The main net is covered with fine meshwork 13. For a ship, Figs. 4 and 6, the nets are supported resiliently in inclined positions, the wires 15 lying in one direction being connected by loop wires 18 disposed beneath the net, so that the upper surface is uninterrupted and bombs are deflected by the netting. ' The nets may be provided with painted cloth to camouflage the building or ship.
2.518365Improvements in and relating to electric cables
GB - 26.02.1940
Int.Class H01B 7/29
HELECTRICITY
01ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
7Insulated conductors or cables characterised by their form
17Protection against damage caused by external factors, e.g. sheaths or armouring
29by extremes of temperature or by flame
 Appl.No 2192838 Applicant CABLES LTD Inventor
518,365. Cables. CABLES, Ltd., and WYATT, K. S. July 23, 1938, No. 21928. [Class 36] To facilitate dissipation of heat from the insulation 2 of a cable having a gas- or oil-filled space 4 between the insulation and an outer lead or like sheath 7, the outer surface of the insulation is provided with a metal or metallized coating 3 and one or more resilient heat conducting bodies 5, which always remain in contact with both the coating 3 and the sheath 7, are provided in the space 4 so as to conduct heat from the coating 3 to the outer sheath. The heat conducting body may consist of a helically applied metal tube having a closed or open wall and formed of a folded strip, or it may be in the form of a helically applied rough wire strand some of the wires projecting outwardly from the strand as shown in Fig. 3. In a modified construction shown in Fig. 4 a helically applied folded strip has a Z-shaped cross-section, the turns of the strip being arranged close together so that the faces of the strip adjacent the insulation constitute the metal coating thereon. Instead of being of metal strip, the heat conducting body may be of sponge rubber loaded with metal powder or quartz powder, the body being applied by wrapping or extrusion.
3.518379Improvements relating to air heating and circulating apparatus for motor vehicles
GB - 26.02.1940
Int.Class B60H 1/00
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
1Heating, cooling or ventilating devices
 Appl.No 2475138 Applicant LUCAS LTD JOSEPH Inventor
518,379. Heating motor vehicles; centrifugal and screw fans. LUCAS, Ltd., J., and WATSON, E. A. Aug. 23, 1938, No. 24751. [Class 110 (i)] [Also in Group XIII] A centrifugal fan and a screw fan driven by a reversible motor are combined so that for one direction . of rotation the centrifugal fan is operative and for the other direction, the screw fan. A disc carrying shallow radial flow blades j is fast on a motor shaft a and carries a spider g the arms of which are slotted to embrace tongues i integral with sheets e. The sheets are pivoted upon rods c and the tongues are bent out of the planes of the sheets. When the spider is rotated anti-clockwise, the slotted ends run over the tongues and turn the sheets out of the plane of their pivots c so that they become the vanes of a screw fan. In this direction of rotation the vanes j are ineffective. On reversal, the vanes j are effective and by means of the tongues i the sheets e are turned back into the plane of their pivots c. The device may be associated on a motor car with a heat-exchanger supplied with hot water from the engine jacket, the heated air driven by the screw fan being delivered to the interior of the vehicle and that driven by the centrifugal fan being conducted to the lower edge of the windscreen. In another form of composite fan, the screw fan may have fixed vanes and lie adjacent an equal apertured disc. A lost-motion contrivance connects the discs so that, in one direction of rotation, the fan apertures are shut. Or, the fixed axial flow vanes may be of such form that they are ineffective in one direction of rotation.
4.518420Improvements in or relating to vaporisers for compression refrigerating machines
GB - 27.02.1940
Int.Class F25B 39/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
39Evaporators; Condensers
02Evaporators
 Appl.No 2494138 Applicant HERMES PATENTVERWERTUNGS GMBH Inventor
518,420. Refrigerating. PATENTVERWERTUNGS-GES. Aug. 24, 1938, No. 24941. Convention date, Aug. 27, 1937. [Class 29] Evaporators. - An evaporator for a compression machine has a lubricant collecting vessel 5 at the end of the coil evaporator 4, and a conduit 7 conveys lubricant and unevaporated refrigerant therefrom to a second vessel 8 within the cold storage space and adapted to act as a supplementary evaporator from which lubricant and vapour only are withdrawn through a suction pipe 10 to the compressor. The vessel 8 is preferably out of direct metallic contact with the coil 4, which is supplied from a condenser conduit 1 through a float valve or other control 2.
5.518433Improvements in and relating to noise limiting circuits for communication or control systems
GB - 27.02.1940
Int.Class H03G 11/02
HELECTRICITY
03ELECTRONIC CIRCUITRY
GCONTROL OF AMPLIFICATION
11Limiting amplitude; Limiting rate of change of amplitude
02by means of diodes
 Appl.No 2511338 Applicant ALFRED AUGUSTUS THORNTON Inventor
518,433. Wireless receiving systems. THORNTON. A. A. (Philco Radio & Television Corporation). Aug. 26, 1938, No. 25113. [Class 40 (v)] A noise-limiting circuit is so arranged that the amplitude of the noise pulse required to cut-off transmission is a function of the signal frequency. Reversely-connected diodes D1, D2 are in series in the path from the signal source E to utilization means 3. A constant-current bias is applied to the diodes by a degenerative pentode V1 so that for signal amplitudes above a desired value in either direction the current through one diode is reduced to zero and the signal transference is cut off. By making the resistances 11, 12 unequal, a cut-off characteristic which is unsymmetrical about the zero axis can be secured. If one diode is removed, then limitation occurs in one direction only. The cut-off level is reduced at higher signal frequencies by the network R1, C which increases the signal-current flowing through the diodes at these frequencies. Attenuation of the higher frequencies is prevented by the use of circuit R, L, which together with R1, C, forms a constant-resistance network. Any derived characteristic of cut-off amplitude against frequency may be obtained by using suitable frequency-selective networks. The limiter may be made to operate over a wide range of s.gnal strength by varying the constant-current bias on the diodes by A.V.C. potentials from 15 applied to the first grid of V1 at terminals 14.
6.518461A method of treating wood surfaces and products of such treatment
GB - 27.02.1940
Int.Class B27K 3/15
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING OR BLEACHING OF WOOD, OR FOR TREATING OF WOOD WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
3Impregnating wood, e.g. for protection
02Processes; Apparatus
15Impregnating involving polymerisation
 Appl.No 2870838 Applicant JAMES GEORGE GAUNT Inventor
518,461. Resinous condensation products. GAUNT, J. G. (Laucks, Inc., I. F.). Oct. 3, 1938, No. 28708. [Class 2 (iii)] [Also in Group VIII] Grain-raising of cut wood surfaces is prevented by impregnating to a depth of at least 0.002 inch with a heat polymerized #-eleostearic acid compound dissolved in a water immiscible volatile solvent, the solid content of the solution being less than 40,per cent. and its viscosity being between 50 and 100 seconds (Saybolt universal 70‹ F.). Solutions containing heat-polymerized tung oil alone may be used or the oil may be treated in the presence of or by reaction with a modifying agent such as glycerine, linseed, perilla, soya bean, or cotton seed oils, rosin copal and kauri resins, ester gum, coumarone, and indene resins and oil soluble phenolic and alkyd resins. In particular tung oil modified alkyd resins may be used. Oiticica or po-yoak oil may also be used. Polymerization is effected at 250‹ C. to 310‹ C. Suitable solvents include benzol, toluol, turpentine, carbon tetrachloride, mineral spirits, dipentene, petroleum thinners and hydrogenated naphtha. Driers and oil-soluble fungicides such as creosote, o-phenyl-phenol, chlor-ophenyl-phenol, 2-4-5 trichlorphenol, and tetra and penta chlorphenol, may be added. In examples (2) rosin is added to tung oil heated to 150‹ C. and the mixture held at 300‹ C. till foaming ceases after which it is cooled and thinned with a petroleum distillate ; (3) glycerine is gradually added to tung oil or its fatty acid heated to 235‹ C., after which phthalic anhydride is added and the mixture held at 235‹ C. Solvent is added and the solution, cooled.
7.518476Improvements in and relating to rheostatic braking systems for electric motors
GB - 28.02.1940
Int.Class H02P 3/24
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
3Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
06for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
18for stopping or slowing an AC motor
24by applying DC to the motor
 Appl.No 2131638 Applicant ENGLISH ELECTRIC CO LTD Inventor
518,476. Electric braking of A.C. motors. ENGLISH ELECTRIC CO., Ltd., AYRES, W. E. M., and RICHES. A. J. July 18, 1938, No. 21316. [Class 38 (iii)] In a rheostatic braking system for an A.C. motor shown as a three-phase induction motor, the D.C. excitation of the disconnected stator la, which may come from a separate generator 3 is raised automatically as the speed of the rotor 1b is reduced in order to keep up the potential across its slip-rings and thus make the braking effect dependent on the amount of resistance which may be manually cut out of the rheostat 2. In a modification D.C. excitat:on is supplied from the mains through a fullwave rectifier and no exciter is used. Other modifications using auxiliary excitation are described.
8.518517Improvements in method of making closed cell expanded rubber or like thermo-setting composition by internally developed gases
GB - 29.02.1940
Int.Class C08J 9/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
9Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
 Appl.No 2434838 Applicant EXPANDED RUBBER CO LTD Inventor
518,517. Closed cell sponge rubber &c. EXPANDED RUBBER CO., Ltd. Aug. 18, 1938, No. 24348. Convention date, Aug. 18, 1937. [Class 70] A closed-cell gas-expanded rubber or a thermo-setting material is prepared by mixing rubber &c. with ingredients to generate gas, subjecting the mix to a pressure of inert gas to prevent escape of gas from the rubber when heated, heating to generate gas, and cooling the mix while still maintaining the external gas pressure. On release of the pressure, the material may become further expanded and additional expansion may be obtained by the use of reduced pressure. In the case of a rubber product, vulcanization is completed by further heating. As substances which generate gas may be used a mixture of sodium nitrite and ammonium chloride, which generates nitrogen, or diazoaminobenzene or diazoaminomethane which on heating liberate nitrogen and leave amine compounds which act as anti-oxidants for the rubber. The rubber may be expanded by the vapours generated from an oil such as paraffin, or by hydrogen sulphide generated by the action of sulphur or rubber at 330‹F. or above. Agents which generate chlorine or hydrochloric acid may be used, and in these cases the rubber becomes chlorinated or hydrochlorinated. Charcoal containing occluded gases such as carbondioxide, nitrogen, helium, &c. may be used, and the mix may be heated by a high-frequency current or by the resistance of the mass to an electric current. The process may be applied to phenol formaldehyde, acrylic acid or vinyl resins, and to chlorinated or hydrochlorinated rubber, alone or mixed with rubber. Specification 358,967 is referred to.
9.518559Improvements in or relating to trouser pockets
GB - 29.02.1940
Int.Class A41D 27/20
AHUMAN NECESSITIES
41WEARING APPAREL
DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
27Details of garments or of their making
20Pockets; Making or setting-in pockets
 Appl.No 3218038 Applicant FREDERICK PENNYBURG MINNEY Inventor
518,559. Trouser pockets. MINNEY, F. P. Nov. 7, 1938, No. 32180. [Class 141] A pair of trousers has at one or both sides two separate side pockets, one behind the other in the same slit, the rear pocket, forming a safety pocket being closed by a flap fastened by a button &c. The safety pocket C is closed by the front buttoned flap D lying inside the front pocket A the rear wall of a' of which is connected with the front wall c' of the safety pocket.
10.518572Improvements in or relating to stone crushing or breaking machines
GB - 01.03.1940
Int.Class B02C 1/10
BPERFORMING OPERATIONS; TRANSPORTING
02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
1Crushing or disintegrating by reciprocating members
02Jaw crushers or pulverisers
10Shape or construction of jaws
 Appl.No 2242638 Applicant HARRY OWEN JONES Inventor
518,572. Jaw crushers. JONES, H. OWEN-. July 28, 1938, No. 22426. [Class 59] In a jaw plate constituted by a plurality of sections, all of corresponding shape so as to be interchangeable, and which are adapted to be keyed together by means of tongues and grooves provided on their adjacent edges, the tongues and grooves extend across the abutting edges and are so disposed that each section whilst being interchangeable, can be placed in the jaw either way up. As shown the fixed jaw 1 is provided with sections 6 keyed together by tongues 7 and grooves 8 provided on their adjacent edges so that they are interchangeable and may be placed in the jaw either way up. Grooves 9 are also provided for the insertion of a tool for removing the sections. The swinging jaw 2 is provided with sections having dove-tailed tongues and grooves 11, 12. The sections are clamped in the jaw by a member 13.
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