baber/WOPTO huggingface dataset:
Patent GB-641248-A (GB)
Title: Improvements in or relating to intermittently operated whistle signal units
IPC: G10K5/00
Filed: 1947-06-20
Abstract: 641,248. Audible and like signalling apparatus. SHIELDS, R. (Stangenberg Aktieselskabet, A. S.). June 20, 1947, No. 16294. [Class 118 (ii)] To operate a whistle intermittently compressed air is supplied to a control chamber until the rise in pressure opens an outlet valve to sound the whistle and close an interconnected inlet valve, the subsequent fall in pressure in the chamber allowing said outlet valve to close, and said inlet valve to open again. A whistle is mounted in an aperture 52 of the cover-plate 12 of a compressed air container 10. Air is admitted into a control chamber 18 by the inlet valve 46 until the pressure is sufficient to depress a spring- loaded outlet valve 24 and by a linkage 38 close the inlet valve 46. Air then flows into a whistle chamber 20 and sounds the whistle until the fall in pressure in the control chamber is sufficient to allow the spring 30 to close the outlet valve 24 and so open the inlet valve 46, when the process begins again. By suitable variation of the volume of the chambers and adjustment of the spring tension any desired relation between the duration of a whistle signal and the duration of the subsequent pause may be obtained.
Patent GB-1140898-A (GB)
Title: Colour photographic development employing pyrazolones as colour couplers
IPC: G03C7/384
Filed: 1966-04-14
Abstract: 1,140,898. Substituted pyrazolones. EASTMAN KODAK CO. 14 April, 1966 [24 May, 1965], No. 16311/66. Heading C2C. [Also in Division G2] Novel compounds of Formula II wherein n represents 1 or 2. R<SP>2</SP> represents an alkyl or substituted alkyl group, a monocyclic alkyl group, a bicyclic alkyl group, an aryl or substituted aryl group, a heterocyclic or substituted heterocyclic group, a carbamyl group or a thiocarbamyl group, R<SP>3</SP> represents a hydrogen atom, an alkyl or substituted alkyl group, an aryl or substituted aryl group, a heterocyclic group substituted or unsubstituted, an etherified hydroxy or thiol group, an amino or substituted amino group, an acylamino group, a carbamyl group, a sulphamyl group, a ureido group, a thioureido group, or a guanidino group, and R<SP>4</SP> represents a monovalent aryl or substituted aryl group when n represents 1, and a divalent aryl or substituted aryl group when n represents 2, are prepared either by reacting ethyl α-aryloxy aceto-acetate, ethyl α - aryloxy # - methyl thio - # - anilino acrylate or diethyl α-aryloxyoxaloacetate with a hydrazine of formula R<SP>2</SP>NH-NH 2  or by reacting the sodium salt of the 4-hydroxy-5- pyrazolone with a mono-fluorinated R<SP>4</SP>, which fluoro benzene compound is activated by electron-withdrawing substituents attached to the benzene ring.
Patent GB-602606-A (GB)
Title: Improved connector for endless tracks of vehicles
IPC: B62D55/21
Filed: 1945-06-27
Abstract: 602,606. Endless tracks for vehicles. KELSEY-HAYES WHEEL CO. June 27, 1945, No. 16365. Convention date, March 22, 1944. [Class 79 (i)] Endless-track shoes of the type having two transverse cylindrical bearing pins have the ends of adjacent pins linked together by a connector comprising a sheet metal stamping having a laterally extending boss provided with bearing surfaces for the two pins, and a second sheet metal stamping secured to the first and having an offset guide portion extending laterally in a direction away from the first stamping. The shoes 2 have transverse bearing pins 3 which are engaged at their ends by connectors comprising a metal stamping 6 having a boss 19 with two holes to accommodate the ends of the pins 3, the member 6 being secured, e.g. by welding round its edges, to a second metal stamping 8 comprising a dished portion 9 offset and bent away from the first member. The pins 3 may be secured by a wedge 4 and nut 18 in known manner.
Patent GB-876733-A (GB)
Title: Improvements in or relating to apparatus for making mouthpiece cigarettes
IPC: A24C5/47
Filed: 1957-02-20
Abstract: The subject-matter of this Specification is identical with part of that described in Specification 876,732 but the claims are concerned with mouthpiece transferred from the fluted drum.
Patent GB-612670-A (GB)
Title: Improvements in or relating to television and like transmitters
IPC: H01J31/32
Filed: 1946-05-29
Abstract: 612,670. Electron image tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 29, 1946, No. 16393. Convention date, May 30, 1945. [Class 39 (i)] In a television camera tube having a magnetic scanning system, a compensating magnetic field is provided to eliminate the effect of the scanning coils on the electron image part of the tube. Fig. 1 shows an " Iconoscope " according to the invention; the coil 36 is in series with the scanning coils 30 and is arranged so that there is no resultant magnetic field acting on the electrons in their passage from the photo-cathode 12 to the mosaic 20. A variable resistance may be included in parallel with coil 36 to enable the degree of compensation to be adjusted.
Patent GB-1065874-A (GB)
Title: Improvements in or relating to an annular cutter and a cutting tool embodying such a cutter
IPC: B26B25/00
Filed: 1965-04-15
Abstract: 1,065,874. Trimming, slicing and boning devices. BETTCHER INDUSTRIES Inc. April 15, 1965 [April 28, 1964], No. 16422/65. Heading A2U. [Also in Division A4] A hand trimming, slicing and boning device comprises handle 12, and annular member 24 detachably secured to handle 12 and adapted to snap fit into a groove in annular rotary cutting blade 16 which has a radially inwardly extended cutting edge 42. The blade 16 is rotated by a pinion 62 driven by rotating shaft 60 engaging the gear teeth 51 on the blade 16. The blade has a substantially cylindrical portion (65) and a substantially convergent portion (66) (Fig. 4, not shown), portion (66) terminating in the cutting edge 42. In use, the cut meat passes through the annular blade 16 and annular member 24.
Patent GB-1099494-A (GB)
Title: Improvements relating to mountings for optical systems
Inventor: NEWTON GEORGE CHARLES
IPC: G02B7/02
Filed: 1964-04-21
Abstract: 1,099,494. Cathode ray tube mountings. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 21, 1965 [April 21, 1964], No. 16424/64. Heading H4T. [Also in Division G2] An optical component 10 (e.g. a television pick-up tube, an image intensifier or a projection cathode-ray display tube) is mounted on at least one set of tensioned struts 11 extending radially therefrom, each strut having means (e.g. threaded nipples 12) for adjusting its tension to enable the component to be accurately centred, means (e.g. screws mounted in a member on an annular member 2) being provided for axially moving the component by deflection of the struts. Component 10 may be used in an optical system comprising a spherical mirror (5) and a Schmidt corrector plate (7) which are bedded in strain free cushions of a silastomer having a cork-filler on members 1 and 3.
Patent GB-615677-A (GB)
Title: Improvements in or relating to vehicle undercarriages
IPC: B60G5/03
Filed: 1946-05-31
Abstract: 615,677. Vehicle undercarriages. JONKHOFF, H. W. May 31, 1946, No. 16640. [Class 79 (v)] [Also in Group XXXII] In an undercarriage or bogie for a road or rail vehicle comprising a parallelogram composed of two side frame members 4 which are pivotally connected at their ends to the adjacent ends of two cross members 11 and are pivoted at intermediate points by king pins and pedestals 2 to a platform or to the body of the vehicle, each side frame member 4 is provided with front and rear wheel axles 7, 7a, which are each free to oscillate relatively to the side frame member about a longitudinal pivot or stub axle carried by a laminated spring arm firmly secured to the corresponding king pin pedestal and are provided with means cooperating with the side frame member to prevent lateral oscillation of the arm and therefore of the wheel axle relatively to the side frame member. When applied to a road or rail vehicle each axle carries two or one wheels respectively. As shown applied to a road vehicle the spring arm comprises a central bank 10, Fig. 3, secured to the frame member 4, and end banks secured to brackets 5a, 5b, the banks being connected by a continuous spring 12, and interconnecting spring blade 14 at the flexing points thereof. Pivotally mounted on each bracket 5a, 5b is the wheel axle 7, 7a. Each bracket has an upwardly projecting arm 16, movement of which relative to the frame member 4 longitudinally is limited by a spring 19 and a rubber stop 18a and laterally by engagement with side cheeks of the member 4. The member 4 may be mounted by a turn-table on rollers 22 onto the vehicle frame or platform. The wheels may be mounted on stub axles on the axles 7, 7a, and the stub axles interlinked and operated by hand, or hydraulic or other power steering means.
Patent GB-745079-A (GB)
Title: Improvements in or relating to halogenated diels alder adducts having pesticidal activity and process of preparing the same
IPC: C07D493/08
Filed: 1953-06-17
Abstract: The invention comprises the hexahalo-1:4-methano - 5:8 - oxa - hexahydronaphthalenes and hexahalo - 1:4 - methano - 5:8 - oxa - 6:7 - epoxy - octahydronaphthalenes which are the adducts of furan or an alkyl substituted furan with a hexahalobicyclo-[2:2:1]-2:5-heptadiene ("Ring Index" nomenclature), and the corresponding epoxide respectively.  They are prepared by reacting furan or an alkyl substituted furan with a hexachloro, or hexabromo-, bicyclo - [2:2:1] - 2:5 - heptadiene and if desired converting the product to the epoxide, e.g. by reaction with an organic peracid such as perbenzoic, peracetic or mono-perphthalic acid.  In examples (1) 1:2:3:4:7:7-hexachlorobicyclo - [2:2:1] - 2:5 - heptadiene is heated with furan to give the mono adduct 1:2:3:4:10:10 - hexachloro - 1:4 - methano - 5:8 - oxa-1:4:4a, 5:8:8a - hexahydronaphthalene; (2) 1:2:3:4:7:7 - hexachlorobicyclo - [2:2:1]-2:5-heptadiene is heated with 2-methylfuran to give 1:2:3:4:10:10 - hexachloro - 1:4-methano - 5 - methyl - 5:8 - oxa - 1:4:4a:5:8:8a - hexahydronaphthalene; and (3) the product of (1) is treated with peracetic acid to give the corresponding 6:7-epoxide.  Analogous products are obtained when furan and/or 2-methylfuran are replaced by 2:5-dimethylfuran in the above examples.  1:2:3:4:7 - Hexachlorobicyclo - [2:2:1]-2:5 - heptadiene is made by treating hexachlorocyclopentadiene with vinyl chloride. Specification 714,830 is referred to.ALSO:Pesticidal compositions comprise Diels Alder adducts of furan or an alkyl substituted furan with a hexahalo­bicyclo -[2 : 2 : 1] - 2 : 5 - heptadiene or the 6 : 7 epoxide of such an adduct (see Group IV(b)) with a carrier and optionally another pesticide. Specified active Diels Alder adducts and epoxides are 1 : 2 : 3 : 4 : 10 : 10 hexachloro - 1 : 4 - methane - 5 - methyl - 5 : 8 - oxa - 1 : 4 : 4a : 5 : 8 : 8a hexahydro­naphthalene, derived from furan and 1 : 2 : 3 : 4 : 7 : 7 - hexachlorobicyclo - [2 : 2 : 1] - 2 : 5 - heptadiene, the 6 : 7 - epoxide thereof and the corresponding compounds derived from 2 - methylfuran and 2 : 5 - dimethylfuran.  The products may be used dispersed in dusts, solvents e.g. acetone or aqueous dispersions.
Patent GB-410327-A (GB)
Title: Improvements in and relating to inductance coils
IPC: H01F17/04
Filed: 1933-06-12
Abstract: 410,327. Inductances. VOGT, H., 10, Garystrasse, Dahlem, Berlin. June 12, 1933, No. 16720. Convention date, March 8, 1932. [Class 37.] A high-frequency inductance coil comprises a magnetic core and two or more coil sections, the distance between which, on the core, can be varied to change the inductance value. In Fig. 2 short wave sections 6 encircle the central leg 5 of a three-leg core the long wave sections 4 being mounted on the two outer legs 3. The coils may be secured in position, after adjustment, by filling up the interstices with a suitable filler or cement. Fig. 3 shows a variable inductance unit comprising two symmetrical halves consisting of cores 7, 8 each with coil 9, 10 secured upon it, the variation being effected by screw means 12 adjusting the air-gap between the core-halves and the coils. An insulating casing 11 may enclose the device. Fig. 4 shows two pot-coils mounted one above the other in an insulating casing 15. The corehalf 13 with the coil-half 14 is fixed in the casing. Core-half 16 with coil-half 17 is fixed in an insulating cover 18 slidable in the outer casing to vary the air.gap.
Patent GB-630645-A (GB)
Title: Improvements in directive radio transmission systems
IPC: H04K1/02
Filed: 1947-06-25
Abstract: 630,645. Directive radio systems. BRITISH THOMSON-HOUSTON CO., Ltd. June 25, 1947, No. 16794. Convention date, Jan. 11, 1943. [Class 40 (vii)] A directive radio system comprises two aerial systems, one of which transmits a desired signal and the other of which has such a radiation characteristic that in all directions except those within a predetermined sector it radiates a signal of greater amplitude than that from the first-mentioned aerial system, so that the signal from the first-mentioned aerial may be sup. pressed in all but the predetermined sector. The two transmissions are preferably frequencymodulated, so that, at a receiver designed to receive frequency-modulated signals, the weaker signal is almost completely suppressed by the stronger. In one embodiment the desired signal is radiated omnidirectionally and the masking signal is radiated with a cardioid radiation pattern. In a second embodiment the radiation patterns of the desired and masking signals are of the cardioid and figure-eight type respectively. In a third embodiment, Fig. 5, the desired signal is radiated omnidirectionally from aerial 29 as shown at 291, Fig. 6, and the masking signal is radiated from the aerial array 36 having a radiation pattern as shown at 36<1>. The dipoles 31, 32, 33, 34 of the array 36 are spaced at the corners of a square having diagonals of length 3#/4 and are so coupled to the transmitter 35 that their phases may be written respectively as 45 degrees, -45 degrees, 0 degrees, 180 degrees. The invention may be used as a rotary beacon. The null of the masking signal is made to rotate and the desired signal is modulated with speech signals announcing the instantaneous position of the null.
Patent GB-111509-A (GB)
Title: Improvements relating to Apparatus for Separating from a Stream of Liquid, Solids held in Suspension.
Inventor: ROSS ARTHUR
IPC: F22D7/00
Filed: 1916-11-24
Abstract: 111,509. Ross, A. Nov. 24, 1916. Sediment collectors.-In a water circulator and sediment collector for steam boilers and the like, of the kind comprising a chamber C having inlet and outlet openings I, 0 on opposite sides of a deflector D, in order to equalize the heating of the walls of the chamber, a, basin is placed in the chamber and is so supported that a space CS for the circulation of a portion of the water is left between the bottom of the basin and the walls of the chamber. The bulk of the water flows through the perforated plate P forming a part of the top of the basin and passes beneath the deflector. A pipe K for cleaning out the sediment is provided at the bottom of the basin.
Patent GB-852014-A (GB)
Title: Liquid measuring device
Inventor: SARDESON ROBERT
IPC: G01F11/00
Filed: 1958-05-27
Abstract: 852,014. Weighing apparatus. PAKO CORPORATION. May 27, 1958, No. 16892/58. Class 143 [Also in Group XXIX] A liquid measuring device comprises a receptacle for the liquid having a flexible diaphragm covering the base, a pivoted beam, one arm of which is connected to the diaphragm and the other to a spring, a keeper on the beam which can co-operate with snap action with a magnet and means operated by the beam for controlling the flow of liquid into and out of the receptacle. The in and out flow of the liquid is controlled by a pair of valves 54 operated by solenoids 67, 76 controlled by a switch 112, actuated by a button 106 on a beam 92 pivoted at 85 and counterbalanced by a spring 101. Permanent magnets 118, 119 are arranged at the extreme ends of the travel of the beam 92 and co-operate with a keeper 123 thereon. The liquid receptacle 32 has a diaphragm 78 in the base which bears on the beam 92 through a spring 95. Closure of a manually operated switch 135, Fig. 7, energizes the solenoid 76 opening the outflow valve, this being held open by a detent (not shown). When the pressure drops to a given value, the beam 92 rises, closing the switch 112 and energizing the solenoid 67 of the inflow valve. The detent is simultaneously released so that the outflow valve closes. The liquid then refills the container until the pressure on the diaphragm is sufficient to overcome the effect of the spring 101 and magnet 118 when the beam drops sharply. The apparatus is then ready to deliver a further measured quantity of liquid and to repeat the cycle.
Patent GB-716190-A (GB)
Title: Acrylonitriles and processes for making the same
Filed: 1951-07-17
Abstract: The invention comprises acrylonitriles of the general formula RO-CR1 = C(Ar)CN where Ar is phenyl or halophenyl, R is lower alkyl and R1 is hydrogen or lower alkyl.  The compounds are prepared by treating an a -aryl-b -hydroxyacrylonitrile with an ortho ester, at a temperature not exceeding the boiling point of the ortho ester and under conditions such that the volatile products are continuously removed.  The a -aryl-b -alkoxyacrylonitrile is recovered by distillation.  In examples (1) a -p-chlorophenyl-b -ethoxyacrylonitrile is prepared by heating a -formyl-p-chlorophenylacetonitrile with ethyl orthoformate; (2) a  - 2 : 4 - dichlorophenyl-b  - methoxyacrylonitrile is made from a -formyl - 2 : 4 - dichlorophenylacetonitrile and methyl orthoacetate by heating together; (3) a  - p - chlorophenyl - b  - ethoxy - b  - methylacrylonitrile from a  - acetyl - p - chlorophenylacetonitrile and ethyl orthoformate; (4) a -31 : 41 - dichlorophenyl - b  - methoxy - b -methylacrylonitrile from the corresponding ketonitrile and methyl orthoacetate; (5) a -(3 : 4 - dichlorophenyl) - b  - ethoxy - b  - methylacrylonitrile from a -acetyl-3 : 4-dichlorophenylacetonitrile and ethyl orthoformate; (6) a -m - chlorophenyl - b  - n - butoxyacrylonitrile from a -formyl-m-chlorophenyl-acetonitrile and n - butyl orthoformate; (7) a - p - chlorophenyl - b  - ethoxy - b  - ethylacrylonitrile from a  - propionyl - p - chlorophenylacetonitrile and ethyl orthoformate; (8) a  - phenyl - b  - ethoxy-b  - ethylacrylonitrile from a  - propiophenylacetonitrile and ethyl orthoformate; (9) a -p-tolyl - b - methoxy - b  - methylacrylonitrile from a -acetyltolylacetonitrile and methyl orthoacetate; (10) a  - p - chlorophenyl - b  - methoxyacrylonitrile from a  - formyl - p - chlorophenylacetonitrile and methyl orthopropionate; (11) a  - p - chlorophenyl - b  - ethoxy - b  - n - heptylacrylonitrile from a  - caprylyl - p - chlorophenylacetonitrile and ethyl orthoformate; (12) a  - phenyl - b - n - amyloxy - b  - methylacrylonitrile from a  - acetylphenylacetonitrile and n - amyl orthoformate; (13) a  - phenyl-b  - n - propoxy - b  - propylacrylonitrile from a -butyrylphenylacetonitrile and n - propyl orthoformate; (14) a  - p - chlorophenyl - b -ethoxyacrylonitrile from a  - formyl - p - chlorophenylacetonitrile and ethyl orthoacetate.  When reacted with guanidine this gives 2 : 4-diamino - 5 - p - chlorophenylpyrimidine; (15) b  - ethoxy - b  - ethyl - a  - p - chlorophenylacetonitrile from a  - propionyl - p - chlorophenyl acetonitrile and ethyl orthoformate.  With guanidine this compound reacts to form 2 : 4-diamino - 5 - p - chlorophenyl - 6 - ethylpyrimidine; (16) b  - ethoxy - b  - ethyl - a  - p - chlorophenylacrylonitrile from a -propionyl-p-chlorophenylacetonitrile and ethyl orthopropionate. When reacted with guanidine this gives 2 : 4-diamino - 5 - p - chlorophenyl - 6 - ethylpyrimidine. Specification 715,813 is referred to
Patent GB-544956-A (GB)
Title: Improvements in or relating to methods of substituting alcoholic hydroxyl groups by bromine
IPC: C07C17/16
Filed: 1940-11-26
Abstract: 544,956. Bromine compounds. DAVIES, H. Nov. 26, 1940, No. 16924. [Class 2 (iii)] Alcoholic hydroxy groups are replaced by bromine without the replacement of hydrogen by bromine, by reacting the alcohol with bromine and sulphur or a sulphur bromide under ordinary pressure. Examples describe the production of ethyl, butyl, and methyl bromides from the corresponding alcohols.
Patent GB-885787-A (GB)
Title: Stabilizing polymers
IPC: C07C37/20
Filed: 1959-05-19
Abstract: 885,787. Stabilizing polymers. ETHYL CORPORATION. May 19, 1959 [May 27, 1958(2)], No. 16933/59. Classes 2(6) and 70. A hydrocarbon polymer or an unsaturated rubbery polymer is stabilized with 4,4<SP>1</SP>-methylene bis (2-methyl-6-t-butylphenol). Rubbers specified are india rubber, reclaimed rubber, balata, gutta percha, butyl rubber, conjugated diene polymers and copolymers of butadiene with specified monomers (particularly styrene or acrylonitrile). The hydrocarbon polymer may be a homo-polymer or a copolymer of ethylene, propylene, butene and isobutylene and may be an irradiated polymer (Example IV). Optional ingredients specified are carbon black, unspecified elastomers and polymers, carboxylic acid esters, urea-aldehyde condensates, wax, antimony trioxide, chlorinated hydrocarbons, pigments (such as ultramarine blue), road-tar, and curing components such as zinc propionate/stearate, sulphur, mercaptobenzothiazole, zinc oxide, titanium dioxide, stearic acid and benzothiazyl disulphide.
Patent GB-365960-A (GB)
Title: Improvements in or relating to valves for the openings of liquid fuel tanks for motor driven vehicles
IPC: B62J35/00
Filed: 1931-06-10
Abstract: 365,960. Tank filler-valves. SANSOM, A. E., 21, Morton Road, and PUDDICOMBE, W. A., 34, The Strand, both in Exmouth. June 10, 1931, No. 16946. [Classes 69 (i) and 135.] The filling aperture of a fuel tank for a motordriven vehicle is fitted with a filler pipe 4, secured by a nut 5, and carrying a spring- controlled inwardly-yieldable disc valve member 7. This valve is provided with a dome-like portion 7<1> on the upper face to take the thrust of the filler nozzle 11 and thereby protect the bevel valve face from injury. The valve disc 7 is reinforced by a rectangular portion 10 which forms part of the hinge 8. The hinge carries the closing spring 9.
Patent GB-652322-A (GB)
Title: Improvements in electromechanical wave filters
IPC: H03H9/135
Filed: 1948-06-24
Abstract: 652,322. Electromechanical filters. BOULY, H. G. (Zenith Radio Corporation). June 24, 1948, No. 17012. [Class 40 (viii)] An electromechanical wave filter is formed of a number of interconnected vibratory elements consisting of two end elements of material of high coefficients of magnetostriction and internal mechanical damping, and intermediate elements of material having' a low internal mechanical damping, all the elements being in the form of thin flat sheets and arranged in a co-planar formation. As shown a mechanically resonant system 5 is provided with elements 13 and 20 of magnetostrictive material at each end co-operating with coils 12 and 21. These may be coupled by transformers 3 and '7 in a radio receiving system or, if coils 12 and 21 are of high impedance, the transformers may be dispensed with. The mechanical system may consist of a succession of blocks joined by connecting wires or rods. This whole system may be stamped out of plate material.