baber/WOPTO huggingface dataset:
Patent GB-514759-A (GB)
Title: Improvements in and relating to electric gas blast switches
IPC: H01H1/38
Filed: 1938-06-02
Abstract: 514,759. Gas - blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. June 2, 1938, No. 16558. Convention date, June 5, 1937. [Class 38 (v)] The fixed contact of a gas-blast switch comprises contact-elements so individually mounted and arranged that, on opening the switch, they separate to form at the point at which the arc is struck an opening of greater cross-section than that of the movable contact. Thus, in the closed position, gas leakage is minimized, and during opening the maximum blast-area is available. The fixed contact of Fig. 2 comprises elements 1 supported within a nozzle formed by elements 8, 28, the elements being pivoted to operating levers 2, which may be resilient but, as shown, are urged by springs 4 so as to bear at their lower ends against the widened part of the movable contact 6. When the latter is lowered to open circuit, the shoulder 7 allows the elements 1 to be forced outwards by springs 5, so providing an enlarged outlet for the upflowing blast. The arc formed is blown from elements 1 on to the member 8 and thence to arcing-contact 9. In Fig. 3, contact elements 1 arranged as in Specification 494,829, are provided with springs 16 to press them against the movable contact 6 and, at their bearing surfaces 10, against the retaining wall 11. A castellated operating-member 12 is provided, the upward projections of which, when the member 12 is rotated clockwise by the operating member for contact 6, engage the elements to move them outwards. In Fig. 5 (not shown), the elements 1 are slidable on current-conducting ball-bearings and the elements 2 are resilient. In other forms, Figs. 6-9 (not shown), the nozzle 28 closely surrounds the movable contact, and a modified linkage is provided. Separation of elements 1 may be effected just before, or at, current-zero, as by locking the levers 2 by a device which is released at current-zero, or by operating the member 12 of Fig. 3 by a spring or weight set into operation by zero-current responsive means.
Patent GB-1510652-A (GB)
Title: Vehicle wheels
IPC: B60B19/10
Filed: 1975-04-22
Abstract: 1510652 Vehicle wheels KRONPRINZ AG 22 April 1975 [13 May 1974] 16663/75 Heading B7C A motor vehicle wheel with a flat-base rim is made of two sheet metal parts 2, 3 providing respective wheel discs 2b, 3b and rim portions 2a, 3a and being joined together by hollow rivets 2c formed at ventilation holes 6 in the wheel discs.
Patent GB-656161-A (GB)
Title: Power controls for internal combustion engines
IPC: F02D9/00
Filed: 1948-06-21
Abstract: 656,161. Regulating. BENDIX AVIATION CORPORATION. June 21, 1948, No. 16670. Convention date, July 8, 1947. [Classes 7(ii) and 7(vi)] [Also in Group XXIX] Power control means for a supercharged internal-combustion engine, e.g. an aircraft engine having main and auxiliary superchargers 12, 13 of which the latter is driven through a variable-speed hydraulic coupling 20, comprises a throttle valve 16 adjusted by a boost control 29 until a predetermined minimum pressure drop across the throttle valve is reached, a regulating valve for increasing the flow of oil to the hydraulic coupling 20 to increase the speed of the auxiliary supercharger to maintain such pressure drop, means to retard the movement of the regulating valve to prevent hunting, and means to accelerate the movement of the regulating valve in response to a change in induction-pressure selection by a pilot's control lever 25. The regulating valve comprises a housing 35 containing a spring-loaded sleeve 36 inside which is a spring-loaded piston 43 itself housing a piston valve 49 actuated by a spring-loaded diaphragm 57 subjected to the pressure drop across the throttle valve by conduits 60, 61. Pressure oil is supplied to the regulating valve through a conduit 42 whence it may fiow into an annular space 40, through a port or ports 47 and thence through a passage 53 to an annular space between lands 51, 52 of the piston valve. In the position shown, flow of oil from this space is prevented and a chamber 55 at the right-hand end of the sleeve 36 is vented through a passage 54 to .a drain connection 69, but when the pressure drop across the throttle valve falls to the minimum value the piston valve 49 is moved to the left by its spring-loaded diaphragm to place the passage 54 and, therefore, the chamber 55 in communication with the pressure supply, whereupon the sleeve 36 and the piston 43 are moved in opposite directions to open a metering port or ports 48 through which oil passes to the hydraulic coupling. The speed of the sleeve 36, however, is limited by the rate at which oil can escape from a chamber 66 through an orifice 68 to a drain connection 67, an alternative escape passage 71 being normally closed. When the pilot's lever 25 is moved to change the induction-pressure selection, a plunger 86 connected to the lever through a bell-crank lever 27<SP>1</SP>, 90 is operated and causes displacement of a piston 74 through oil in a chamber 73 which has a restricted orifice 87, whereby a port 79.or a port 89 is opened to vent the passage 71. The piston 74 returns to its neutral position closing the ports 79, 89 under the influence of spring centering means 82 as the oil passes into or out of the chamber 73 through the orifice 87.
Patent GB-1030730-A (GB)
Title: Improvements in or relating to glass reinforced resin pipes
IPC: B29D23/00
Filed: 1963-08-02
Abstract: 1,030,730. Reinforced plastic pipes. ROCK ISLAND OIL & REFINING CO. Inc. Aug. 2, 1963 [Oct. 12, 1962], No. 16751/65. Divided out of 1,030,729. Heading F2P. [Also in Division B5] A glass filament reinforced cured resin pipe comprises tensioned elongate filament reinforcements in alternating layer relationship with helices of tensioned filaments, the filaments being embedded in cured resinous material, and the pipe having an externally threaded end portion. The pipe, and apparatus for making the pipe, is identical with that described in the parent Specification.
Patent GB-786531-A (GB)
Title: Improvements in weft-inserting devices for weaving looms
IPC: D03J5/00
Filed: 1955-06-10
Abstract: 786,531. Shuttleless looms. DEWAS. R. June 10, 1955 [June 16, 1954], No 16766/55. Class 142(2) A weft inserting needle of the kind shown in Specification 658,763, in which the weft end 7a is clamped between lower and upper jaws 1, 2, has the guard 3, which prevents entanglement of the warp threads in the jaws, reduced in height at the end portion 3a so that as the needle is emerging from the shed and the upper jaw 2 is sprung away from the lower jaw 1 to release the weft, the selvedge warp threads are allowed to rest on top of the upper jaw, thereby pressing on the weft thread 7 as it runs out of the hook 1f to keep it taut. A groove 1e is formed in the surface of the upper jaw to guide the weft.
Patent GB-1401263-A (GB)
Title: Cycloaliphatic compounds useful as odour-and flavour-modifying agents
IPC: A23L27/20
Filed: 1974-04-17
Abstract: 1401263 Flavourant additives for food and tobacco FIRMENICH SA 17 April 1974 [17 April 1973 8 Nov 1973] 16820/74 Headings A2B and A2C [Also in Divisions A5 and C2] Foodstuff and tobacco preparations contain as a flavourant 1, 3- or 1, 4-dimethylcyclohex- 3-enyl methyl ketone.
Patent GB-935807-A (GB)
Title: A combined eraser and suction cleaner for blackboards
Inventor: MIN KWAN SHU
IPC: B43L21/02
Filed: 1962-05-02
Abstract: 935,807. Suction cleaners for blackboards. KWAN SHU MIN. May 2, 1962, No. 16874/62. Class 8(1). A blackboard eraser has eraser pads 14 mounted on one side of a casing 1 containing a fan 16 driven by an electric motor M which sucks the chalk dust removed by the pads through the opening 15 into the dust bag 18. The casing has a detachable cover plate 3 to provide access to the motor M and the batteries B, B<SP>1</SP>.
Patent GB-676093-A (GB)
Title: Improvements in or relating to hydraulic pumps and motors
IPC: F01B3/00
Filed: 1947-06-27
Abstract: 676,093. Pistons. SUNDSTRAND MACHINE TOOL CO. June 27,1947 [Sept. 11, 1946], No. 17016/47. Class 122(i) [Also in Groups XXVIII and XXIX] A hydraulic pump or motor comprises a non-spherical piston freely reciprocable, (i.e. unattached to piston rods) in a cylinder, the side walls of the piston being convexly curved in a direction parallel to the axis thereof. The invention is shown applied to a hydraulic coupling forming the subject-matter of Specification 604,285, comprising a swashplate pump and motor of the rotating cylinder block type, and piston 32 being actuated from the swash-plates through a push-rod 35 contacting the rear face of the piston. To prevent sticking of the pistons due to centrifugal forces, they are formed with curved side walls and are provided with depressions 42 to reduce their weight.
Patent GB-1254952-A (GB)
Title: Process for the production of novel 1,2-benzisothiazole derivatives
Inventor: BOSHAGEN HORST
IPC: A01N43/80
Filed: 1969-04-01
Abstract: 1,254,952. Benzisothiazole derivatives. FARBENFABRIKEN BAYER A.G. 1 April, 1969 [3 April, 1968], No. 17028/69. Heading C2C. Novel compounds I  wherein Ar signifies phenyl or naphthyl which may be substituted by one or more similar or different radicals which are halogen, alkyl, alkoxy, alkylmercapto CF 3  or NO 2 , Y is O or S, R<SP>1</SP> is a radical which is halogen, alkyi, alkoxy or alkylmercapto (if there are two or three R<SP>1</SP> radicals they may be the same or different) and the radical R<SP>1</SP>, or one of the radicals R<SP>1</SP> may be N0 2 , and n is 0, 1, 2 or 3 are obtained by the interaction of a compound II (R is an aliphatic, araliphatic or aryl radical and X is the anion of a strong inorganic acid) and a phenol or thiophenol, Ar.Y.H.  Pharmaceutical preparations particularly suited as antimycotics contain I as active ingredient; administration is by parehteral injection, locally or by other standard methods.
Patent GB-1466955-A (GB)
Title: Rotary magazines for slide projectors
IPC: G03B23/06
Filed: 1974-04-18
Abstract: 1466955 Rotary slide magazines AGFAGEVAERT AG 18 April 1974 [19 April 1973]  17036/74 Heading G2J A rotary slide magazine with a base 2, cover 5 and radial slide compartment walls 3 has a stop such as ring 1 which limits the radially inward movement of the slides and which also has means for facilitating manually taking hold of the magazine, e.g. channel la, and means for preventing slides being accidentally dislodged by the fingers when the channel is gripped e.g. plate 1b. The plate may be provided with one or more apertures or finger holes for aiding taking hold of the magazine, the holes being positioned so that the slides remain out of reach of the fingers. Each slide compartment has a spring 6 for resiliently holding a slide in place, and wedge shaped members 3c for guiding the slides.
Patent GB-1383828-A (GB)
Title: Printing telegraph mechanism
IPC: H04L17/30
Filed: 1972-04-13
Abstract: 1383828 Control of printers CREED & CO Ltd 13 April 1972 17057/72 Heading G4H A printing telegraph machine incorporating case shift arrangements includes a print head with a continuously rotating print wheel having a row of symbols arranged around its periphery, the letter and figure symbols being arranged in separate halves of the row, means 70-72 for sensing the position of the symbols relative to a printing station, and means 60-65 for advancing the print head relative to the record surface, after printing of a character in one half, when the other half of the row is passing the printing station. A signal 1 in I.T.A. 2 code is shifted through registers 4, 14 by pulse trains 10, 13b from means 2-12 actuated by a start bit, the start bit being subsequently shifted out of register 14 to set a flip-flop 19 and open gates 20. Detection of a figure or letter shift signal 24, 25 sets or resets a flip-flop 30 and resets 19 via OR- gate 36; detection of carriage return, line feed or spacing signals 26-28 causes the corresponding operation to be effected by circuit 41-46, 50-55 or 59-65 whereupon a signal 47b, 56b or 67b against resets 19. The output from means 70-72 (which may be a toothed wheel, a sensor  and an encoder) includes a symbol identifying part 70a and a bit 70b which indicates the letter or figure shift half of the row; when the incoming signal is a printable symbol it is fed with 70a to a comparator 29a while 70b is compared (29b) with the output from flip-flop 30. When the inputs to the comparators agree, their outputs 74a, 73 open an AND-gate 75 and trigger a monostable device 76 which operates a print hammer unit 79; completion of the printing operation is detected by device 81 which signals an AND-gate 82. Output 74a is inverted (74b) and also fed to gate 82 so that if, e.g. a letter shift symbol has just been printed, gate 72 will not be enabled until the figure shift half of the row on the print wheel begins to pass the printing station: at this moment, circuit 60-65 is actuated to move the print head.
Patent GB-850680-A (GB)
Title: Improvements in the production of 2-methyl-2-propyl-propane-diol-1.3
IPC: C07C45/58
Filed: 1959-05-20
Abstract: 2-Methyl-2-propyl-propane-diol-1,3 is produced by epoxidising 2-methyl-pentene-1 with peracetic acid by known methods to give 2-methyl-pentene-epoxide-1,2, rearranging the epoxide at elevated temperature in the presence of phosphoric acid, and condensing the 2-methyl-pentenal so formed by known methods with formaldehyde in the presence of an alkaline condensing agent.  Preferably the rearrangement is effected by passing the epoxide in vapour form over a phosphoric acid-silica gel catalyst at 100 DEG -300 DEG C. Alternatively the rearrangement may be carried out at a temperature below 100 DEG C. and at reduced pressure.  If desired the epoxide may be mixed with a diluent such as nitrogen or steam before being passed over the phosphoric acid catalyst.
Patent GB-1026054-A (GB)
Title: Improvements relating to vacuum electric devices
Inventor: DIGBY BASIL TUXFORD
IPC: H01H33/662
Filed: 1962-05-04
Abstract: 1,026,054. Making electric components; welding by fusion. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 23, 1963 [May 4, 1962], No. 17274/62. Headings B3A and B3R. [Also in Divisions H1 and H2] In a vacuum electric device, e.g. a switch or surge diverter, having an evacuated envelope having a ferrous portion through which passes a copper or copper alloy conductor, a hermetic joint between the conductor and the ferrous portion is formed by argon arc welding. An evacuated switch, Fig. 1, not (shown), has a ceramic body 1 and fixed and moving copper electrodes 2, 3 brazed to copper supports 9, 11 Ferrous portions 13, 10 (e.g. 54% Fe, 29% Ni 17% Co) of the envelope are argon arc welded to the support 11 and to one end of a bellows 8, the other end of which is brazed or argon arc welded to the support 9.
Patent GB-1131720-A (GB)
Title: Improvements in type-printing apparatus
IPC: B41J1/00
Filed: 1967-04-14
Abstract: 1,131,720. Typwriters &c. CREED & CO. Ltd. 14 April, 1967 [16 April, 1966], No. 17274/67. Heading B6F. A pull-wire for attachment to the type-lever of a teleprinter in which one end is formed as an open rightangled hook 1b and a leaf spring 2 is attached to another portion of the wire so as to snap over and retain the type-lever in position. The leafspring may be fixed to the pull-wire by means of a moulded plastic sleeve, and may be formed at its free end with a recess, a cut-out or a forkshaped indentation into which the hook projects when the spring is in its engaging position.
Patent GB-929931-A (GB)
Title: Titanium-base alloys and their heat treatment
Inventor: MCQUILLAN MARION KATHARINE
IPC: C22C14/00
Filed: 1958-05-30
Abstract: A Ti-base alloy has the following composition: Be 0.5-1%; Mo 0.25-2% and/or Si 0.25-2%; Ti and impurities, the remainder. The alloy is heat treated to produce a hard surface with a softer core by liquid quenching from a temperature between 875 DEG  and 1200 DEG  C.  The alloy may then be tempered by reheating to a temperature below 800 DEG  C.  According to the Provisional Specification the alloy has the composition: Be 0.1-2.5%; Mo 0.1-2.5%; Ti and impurities the remainder.
Patent GB-1024514-A (GB)
Title: Attachment means for power driven toothbrushes
IPC: A61C17/32
Filed: 1964-04-27
Abstract: 1,024,514. Stud and socket fastenings. WESTINGHOUSE ELECTRIC CORPORATION. April 27, 1964 [May 17, 1963], No. 17370/64. Heading E2B. [Also in Division A4] The handle 1 of a power driven device is attached to an adaptor portion 4 of a toothbrush (see Division A4) by pressing a shank 2 into a recess of the adaptor portion 4. The mating surfaces of the shank 2 and adaptor portion 4 having cooperating mound 5, 7, 9 and dimple 8, 6 portions which hold the removable adaptor portion 4 in position. The shank 2 and adaptor portion 4 may be formed from a resilient thermoplastic material.
Patent GB-468098-A (GB)
Title: Improvements relating to curtain rail brackets
IPC: A47H1/144
Filed: 1936-06-23
Abstract: 468,098. Curtain - rail brackets. HARRISON, S. C. June 23, 1936, Nos. 17398 and 24923. [Class 52 (v)] A curtain-rail bracket comprises a metal strip bent to form a rectangular part a having holes b through which a fixing screw c can be inserted, the two ends of the strip extending externally and one end d being in the form of a fork and the other end e in the form of a tongue which lies between the fork members, the fork and tongue being adapted to clamp on the rail g when the fixing screw is tightened. The end d is gapped to form the prongs of the fork and each prong is twisted through a right-angle and has a T-shaped slot f formed in it. The end e is bent or folded transversely and has a groove h formed in its outer extremity. The flange of the rail takes in the slots f and groove h. In a modification, the end e which lies between the fork members d is of the same shape as these members and is also twisted through a rightangle and provided with a T-shaped slot.
Patent GB-228848-A (GB)
Title: Improvements in or relating to vacuum insulated vessels
IPC: A47J41/02
Filed: 1924-07-23
Abstract: 228,848. Siegheim, F. Feb. 6, 1924, [Convention date]. Fitted with drinking-cups. -Drinking-cups for vacuumjacketed glass vessels are formed of glass with double walls which enclose a vacuum space or are merely silvered and contain air. The drinking-cup b, Fig. 3, may be protected by a metal disc or by a cap c extending over only a part of the cup so as to leave a glass rim to contact with the lips. The cap protects the exhausting-nipple d and forms a base support for the cup when in use. The base of the flask may have a similar cap e. The cup may be detachably secured over the mouth of the flask in any suitable way, a tight joint being effected by the use of a gasket or by grinding the contacting surfaces. A suitable attachment means comprises a slotted ring o normally concealing the joint, the cup and vessel being provided with pipes m, l engaging the slots in the manner of a bayonet catch. When the cup is detached the ring may be lowered below the mouth of the flask to facilitate pouring.
Patent GB-918954-A (GB)
Title: New pesticides and pesticidal preparations
Inventor: SCHERER OTTO
IPC: C07C205/43
Filed: 1960-05-18
Abstract: Esters of 4,6-dinitro-2-sec.-butylphenol of the general formula <FORM:0918954/IV (b)/1> in which R1 and R2 represent the same or different alkyl groups containing 1 to 4 carbon atoms, particularly the b -methyl-b -n-propylacrylic acid ester of 4,6-dinitro-2-sec.-butylphenol, are made by reacting 4,6-dinitro-2-sec.-butylphenol with a b ,b -dialkylacrylic acid-anhydride or acid-halide.  Another alternative is to react a 4,6-dinitro-2-sec.-butylphenolate with a b ,b -dialkylacrylic acid-halide.  The reaction may be effected, e.g., by dissolving equal molar quantities of 4,6-dinitro-2-sec.-butylphenol and the acid-halide in benzene or carbon tetrachloride, and by adding pyridine or dimethyl-aniline at such a rate that the boiling temperature is reached.  The mixture is then boiled under reflux, cooled and washed with dilute hydrochloric acid.  After all the amine has been removed, the product is washed with sodium carbonate solution, and finally it is washed with water.  The esters have use in pesticidal preparations (Group VI).ALSO:Pesticidal compositions comprise esters of 4,6 - dinitro - 2 - sec. - butylphenol of the general formula <FORM:0918954/VI/1> (in which R1 and R2 represent the same or different alkyl groups containing 1 to 4 carbon atoms) in admixture with a solid or liquid diluent.  In examples, the composition comprises 25% of the b -methyl-n-propylacrylic acid ester of 2,4-dinitro-2-sec.-butylphenol, 64% of amorphous silicic acid, 10% of the calcium salt of lignin sulphonic acid, and 1% of sodium methyltauride oleate; and is used, as an aqueous liquor of 0.05% strength, to spray bean plants infested with spider mites. or the b - methyl - b  - n - propyl acrylic acid ester of 4 : 6 dinitro - 2 - sec. - butyl phenol, butanol, xylol and an alkyl phenol polyglycol ether as an emulsifiable concentrate.
Patent GB-928340-A (GB)
Title: Condensate removal means for steam heated drying drums
IPC: D21F5/10
Filed: 1959-09-07
Abstract: 928,340. Hollow rollers; condensate removal. JOHNSON CORPORATION. Sept. 7, 1959 [Nov. 5, 1958], No. 17656/62. Divided out of 928,339. Class 34 (1). The subject-matter of this Specification is substantially the same as that described in Specification 928,339 but the claims differ. Specifications 733,325 and 878,800 also are referred to.
Patent GB-1524627-A (GB)
Title: Multi-layer structure polymer composition
IPC: C08F220/00
Filed: 1976-04-30
Abstract: 1524627 Layered methacrylate copolymer compositions MITSUBISHI RAYON CO Ltd 30 April 1976 [6 May 1975] 17688/76 Heading C3P A polymer composition comprises at least four layers; (A) a polymer containing 51-100 p.b.w. of a C1-4 alkyl methacrylate, 0-49 p.b.w. of a comonomer, 0-10 p.b.w. of a polyfunctional monomer and 0À1-5 p.b.w. of a graftlinking agent containing an allyl group; (B) an elastomer containing 80-100 p.b.w., of a C1-8 alkyl methacrylate, 0-20 p.b.w. of a comonomer, 0-10 p.b.w. of a polyfunctional monomer and 0À1-5 p.b.w. of a graftlinking agent; (C) a polymer containing 51-100 p.b.w. of a C1-4 alkyl methacrylate, 0-49 p.b.w. of a comonomer, and one or more layers (D), prepared from 10-90 p.b.w. of a C1-4 alkyl methacrylate, 90-10 p.b.w. of a C1-8 alkylacrylate, 0-10 p.b.w. of a polyfunctional monomer and 0À1-5 p.b.w. of a graftlinking agent. The layers (A), (B) and (C) are in that order, (A) being the innermost, while layer(s) (D) lies between layers (B) and (C), and optionally also between layers (A) and (B); the C1-4 alkyl methacrylate content of the layer(s) (D) increases linearly from the layer (B) towards layers (Al) and (C); the tg's of various layers are as follows; layer (A) #10 C., layer (B) #0 C. and layer (C) #50 C.
Patent GB-1532911-A (GB)
Title: Rotary positive-displacement pumps
IPC: F04C13/00
Filed: 1977-04-28
Abstract: 1532911 Rotary positive-displacement fluidmachines CREPACO Inc 28 April 1977 [15 Sept 1976] 17798/77 Heading F1F In a gear-pump for e.g. an esculent fluid, a movable wall 24 is held against end-faces of the gears 13, 14 by fluid-pressure in a cavity 25, which is de-pressurized when the gear chamber 12 is flushed with a cleansing fluid so that the latter can by-pass the gears, Fig. 2a (not shown). The pressure loading of the wall 24 may be supplemented by either a single piston or two pistons disposed in tandem, Figs. 3-6 (not shown).