baber/WOPTO huggingface dataset:
Patent GB-353004-A (GB)
Title: Improvements in and relating to grease feeding devices
IPC: F16N5/00
Filed: 1930-01-14
Abstract: 353,004. Lubricating-apparatus. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Bendix Aviation Corporation; 401, North Bendix Drive, South Bend, Indiana, U.S.A.) Jan. 14, 1930, No. 14803/31. Divided on 350,503. [Class 102 (i).] Grease contained in a suction vessel 1 provided with a follow-up plate 2 is drawn by a pump driven by a belt 44 and discharged through a non-return valve 40 to an accumulator 36 connected by a flexible pipe 42 to an injecting device 6 provided with a measuring device 8. The pump plunger 3 is driven by a crank 37a and slides in a longitudinally slit sleeve 4, a block 3a on the plunger registering with the slot 4a. The sleeve oscillates during the stroke so that the slot registers with the suction pipe and then is rotated for the discharge stroke. A rod 38d attached to the accumulator is provided with collars 38c which act on the belt shifting lever 38 to start and stop the pump. Specifications 350,503, and 353,003, [Group XVIII], are referred to.
Patent GB-628516-A (GB)
Title: Improvements in or relating to implements of the pencil type
IPC: B43K19/14
Filed: 1947-06-04
Abstract: 628,516. Indented paper. DIXON CRUCIBLE CO., J. June 4, 1947, No. 14808. Convention date, July 18, 1940. [Class 96] [Also in Groups VI, XV and XXIII] An implement of the pencil type comprises an elongated core and a sheath enclosing the core consisting of flexible brittlized sheet material wound around the core and a layer of adhesive between the convolutions of sheet material holding them together. The core may be in the form of a lead pencil, an eraser, a cosmetic preparation, a sharpening stone, or a dental device. A sheet 11 of flexible material, coated with adhesive 12, is wound around a core 10 and may be cut away as the core is used or worn away. The sheet material may be newsprint paper, cellophane or cellulose acetate, and the adhesive used may be sodium silicate. To facilitate cutting the sheath, the newsprint paper is embrittled by charring at 200‹ C. for five minutes, but the degree of charring may be varied to suit the required tensile strength. In a modification which comprises a sheath having three sections, the first and third sections are composed of smooth newsprint paper, the intermediate section is composed of paper which has its surface regularly indented to provide air spaces between the convolutions in order to decrease the density of the sheath.
Patent GB-1462181-A (GB)
Title: Coating particles
IPC: B01J2/30
Filed: 1973-03-28
Abstract: 1462181 Coated fertilizer particles FISONS Ltd 22 March 1974 [28 March 1973] 14822/74 Heading C1B [Also in Division B2] A method of treating particulate fertilizer materials comprises tumbling or agitating fertilizer particles in the presence of a coating agent which comprises a mixture of a surface active agent, e.g. an anionic, cationic or nonionic material, preferably alkylbenzene sulphonates, napthalene sulphonates, olefin sulphonates, alkylene oxide condensates with alcohols, glycols or alkylphenols, long chain amines of formula RNH 2  where R is a saturated or unsaturated aliphatic group containing 8-25, preferably 18-21 carbon atoms, and fatty acid amide derivatives, and a polyolefin wax, having an average molecular weight of less than 10,000. The tumbling or agitating may be carried out at not more than 70‹ C. Preferably 0À02% to 0À5% by weight of polyolefin wax is applied to the fertilizer. The wax may be a microcrystalline wax and may be sprayed on to the fertilizer particles as an emulsion or dispersion. The wax may have a hardness of 90 or less as determined by the ASTM d-5 test method. The coating agent may comprise 5-40% by weight of the polyolefin wax and 10-30% by weight of the surface active agent.
Patent GB-1403808-A (GB)
Title: Manufacture of articles of cellular thermoplastic material
IPC: B29C44/50
Filed: 1973-03-28
Abstract: 1403808 Cellular thermoplastic polymer skinned articles SOC CHIMIQUE DES CHARBONNAGES 28 March 1973 [30 March 1972] 14953/73 Heading C3C [Also in Division B5] Articles of structural foams of thermoplastic synthetic polymers, i.e. having a skin of unfoamed polymer and an interior of cellular polymer, are made by injection moulding or extruding a mixture of the thermoplastic polymer with an at least partly crystalline, porous, hydrated substance which can be hydrated or de-hydrated reversibly without affecting its crystalline structure and the bonding of the molecules of the hydration water being labile whereby water is readily liberated. The hydrated substance may be brought to the desired granluar size before introduction into the interior of the polymer which is then either injection moulded or extruded through a die associated with a shaping device having a greater transverse section than that of the die. The hydrated substance may be a natural and synthetic zeolite or sepiolite. The polymers used in the examples were polystyrene, polyethylene and polyvinyl chloride.
Patent GB-439095-A (GB)
Title: Improvements in hair-nets
IPC: A45D8/40
Filed: 1935-05-22
Abstract: 439,095. Hair nets. BERGMANN, E., Laupheim, W³rtemberg, Germany. May 22, 1935, No. 14964. Convention date, May 22, 1934. [Class 131] A hair net comprises a flat, preferably rectangular, crown portion a to the edges of which is attached by knotting ortying a portion b which is woven so as to bulge outwardly and which is taken in at the bottom c by reducing the number of the meshes.
Patent GB-235236-A (GB)
Title: Improvements in and relating to fuses for projectiles
IPC: F42C15/22
Filed: 1925-06-09
Abstract: 235,236. Pantoflicek, B. June 9, 1924, [Convention date]. Projectile fuzes; ammunition packing. - Relates to fuzes in which the detonator 4 and exploder 8 are embodied in the body of the projectile, the mechanical parts only of the fuze being contained in the removable cap 1. According to the invention, the detonator is shielded from the needle 16 by a sliding plate 14 which also serves to protect the detonator from mechanical and other influences during transport when the cap 1 is removed. In the form shown, the cap screws into an intermediate ring 3 having a screwed recess to receive a plug 5 in which the detonator 4 is retained by a screwed nipple 7. A second plug 12 houses the plate 14 which normally shields the detonator but which slides radially under the action of centrifugal or other force on firing, during flight, or on impact, to permit the needle 16 of the fuze to pass through the aperture 17 and strike the detonator. After unscrewing the cap 1, the opening in the projectile proper is closed by an airtight screw or cover.
Patent GB-1055196-A (GB)
Title: Improvements in photopolymerisalble compositions
IPC: C08F20/20
Filed: 1964-04-10
Abstract: Pentaerythritol triacrylate and diacrylate are prepared by reacting pentaerythritol with acrylic acid in the presence of a strong acid catalyst and cuprous oxide and p-methoxy-phenol as polymerization inhibitors.  2,2,2,21-Tetra - acrylyloxymethyl - 21 - hydroxy - diethyl-ether and 2, 2, 2, 11 - tetra - acrylyloxymethyl - 21 - hydroxy diethylether are prepared by reacting pentacrythritol triacrylate with glycidyl acrylate under the same conditions as above. 2,2,2-Triacrylyloxy-methyl - 21 -hydroxydiethylether is prepared by reacting pentaerythritol triacrylate with ethylene oxide.ALSO:Photopolymerizable compositions comprise a thermoplastic macromolecular organic polymer solid at 50 DEG  C. and at least one acrylate ester containing 1 or 2 pentaerythritol nuclei of the formula <FORM:1055196/C3/1> wherein 2 or 3 of the free bonds have attached thereto an acrylyl radical and the remaining free bonds are linked to an aliphatic hydrocarbon radical optionally substituted by an ether, polyether or carboxylic acid ester group, any of which may carry a free hydroxyl radical, a hydroxyl radical per se or hydrogen. Suitable thermoplastic polymers include polyesters, polyamides, vinylidene chloride copolymers, vinyl acetate copolymers, vinyl chloride polymers, polyacrylates, polystyrenes, synthetic rubbers, polyethylene, polyethylene oxides, polyglycols, polyvinyl acetals, polyformaldehydes, polyurethanes, polycarbonates, cellulose ethers and cellulose esters.  The compositions may also include a plasticizer for the thermoplastic polymer, polymerization initiators activatable by actinic radiation, inhibitors of thermal addition polymerization, chain transfer agents, non-thermoplastic polymers, e.g. polyvinyl alcohol, cellulose, gelatine, phenolic resins and melamine-formaldehyde resins, organic and inorganic fillers, e.g. silicas, bentonites, powdered glass and carbon, dyes and pigments. In the examples, the polymer components of the polymerizable compositions are one or more of cellulose acetate butyrate, cellulose acetate, cellulose acetate hydrogen succinate, polyethylene glycol and derivatives thereof, e.g. methoxy polyethylene glycol hydrogen succinate, and polyethylene glycol diacrylate, and the photoinitiator used is phenanthraquinone, 2-ethyl anthraquinone or benzoin methyl ether. The compositions may also contain, inter alia, water, methanol, acetone, glutaric acid, dibutyl phthalate, p-methoxy phenol, triethylamine, and dyestuffs, e.g. crystal violet or Pentacyl Wool Blue BL (C.I. 50315).  In Example VIII, polyethylene glycol diacrylate is included as monomer together with the pentaerythritol acrylate. The compositions are coated on a suitable support and exposed to actinic radiation to produce printing plates.
Patent GB-1218936-A (GB)
Title: Diazotype light-sensitive copying papers
Inventor: YOSHIDA SHIGEAKI
IPC: C07D295/096
Filed: 1968-03-28
Abstract: 1,218,936. Photographic diazotype materials. RICOH. K.K. March 28, 1968, No. 15009/68. Heading G2C. A two-component diazotype material used for preparing intermediate masters comprises a lighttransmitting support coated with a diazonium compound of formula where R is alkyl with 1 or 2 carbon atoms, X is an anion and a coupler of formula wherein R 1  and R 2  are alkyl with 1 to 4 carbon atoms. The material to imagewise exposed and developed with an alkaline solution which may contain a coupler to give a yellow or yellow-bronze dye image and used as an intermediate master. The same developer bath may be used to develop the one-component diazotype material exposed to the intermediate master. The light-sensitive layer may contain methylene blue.
Patent GB-1391697-A (GB)
Title: Security system for detecting intrusions in an enclosure
Inventor: LECUYER D M P
IPC: G08B13/16
Filed: 1972-04-04
Abstract: 1391697 Intruder alarms LA DETECTION ELECTRONIQUE FRANCAISE 4 April 1972 [7 April 1971] 15249/72 Heading G4N An intruder alarm system comprises a plurality of vibration sensors 7 each coupled via a respective amplifier E1 ... E3 to a transmission line 5, 6 feeding a signalling or alarm device 2 matched to the characteristic impedance of the line 5, 6. The transmission line 5, 6 also supplies power to the transistors T1 in each amplifier E1 ... E3. A Zener diode Z1 and diode D1 provide voltage and temperature stabilizetion for the bias of transistor T1. The amplifier gain is variable by adjustment of resistor R4 whilst the band pass frequency range is selected by capacitors C1, C2. Zener diode Z2 protects transistor T1 against induced voltage surges. The tapping between resistors RA, RB is connected to line 11 so as to provide fault indication.
Patent GB-781733-A (GB)
Title: Improvements in or relating to conveyor systems
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B65G25/00
Filed: 1955-05-26
Abstract: 781,733. Step-by-step conveyers. KING, Ltd., G. W. May 16, 1956 [May 26, 1955], No. 15281/55. Class 78 (1). A conveyer system comprises a movable unit 14 adapted to support individual load carriers 10 on rollers 18 and movable forwards and backwards along a track 17 and means 40 to prevent reverse movement of any carrier present on the unit during its reverse movement. Each unit may comprise an articulated train of carriages, one of which is reciprocated by a double-acting fluid-pressure actuated ram 19. The device for preventing backward movement comprises a series of plates 40 which are supported by parallel rails 39 and are displaceable freely in a vertical direction. As a carrier 10 moves forward, the sloping end of its top 11 engages in succession the sloping bottoms of the plates 40 and forces them upward. On the return movement of a unit 14, the other sloping end of the top 11 engages the vertical face of the end plate of the series and does not displace it. The end plate, therefore, acts as a stop to retain the carrier. The cylinder 20 of the ram 19 is fixed to one of the carriages and its pistonrod 22 is anchored at 23 to the track 13. Admission of fluid to the ends of the cylinder is controlled by a plate valve, the movable member 24, Fig. 4, of which is attached to an operating arm 25 movable between limiting stops 26, 27. The arm 25 is coupled by a spring 28 to an actuating lever 29 movable between stops 30, 31 in such a manner that when the lever 29 has moved a predetermined amount from one limiting position, the spring will cause the arm 25 to snap over into its alternative limiting position. The lever 29 is actuated by the carriage as the latter approaches the limit of its movement in either direction. In order to ensure that the valve will be actuated in such a way that the motion at the beginning and ending of the ram stroke in each direction will be uniformly accelerated or retarded, a control device, Fig. 5, is mounted on a stationary part of the system with its plunger 32 projecting into the path of two oppositely inclined ramps at, or adjacent to, opposite ends of the cylinder. The control device comprises a cylindrical casing having an inlet port 33 and an exhaust port 34. A member having a central passage 35 provides communication between the ports. A ball 36 is urged on to its seating at the end of the passage by a spring 37 which bears against a piston 38 associated with the plunger 32. As the cylinder nears the end of its stroke, it will depress the plunger and the piston 38 will progressively mask the port 34 to damp the flow of exhaust fluid. When the cylinder reverses, the spring will raise the piston gradually and the motion will accelerate progressively. Specifications 701,610, 719,888 and 763,943 are referred to.
Patent GB-191759-A (GB)
Title: Improvements in electric signalling lamps
IPC: H01K9/08
Filed: 1918-09-21
Abstract: 191,759. Low, A. M. Sept. 21, 1918. Flash signals. - An electric signalling lamp comprises a spring-suspended magnetic shutter e inside the bulb operated by an external solenoid h. The filament c is mounted on an opaque support d.
Patent GB-236368-A (GB)
Title: A process of manufacturing lead oxides
IPC: C01G21/02
Filed: 1924-06-26
Abstract: Lead suboxide mixed with some metallic lead is produced by placing pieces of lead in a rotary drum and passing in air &c. or other oxidizing gas while rotating the drum at about 25 revolutions per minute.  The product is very light and reactive and is readily converted into lead monoxide by heating it locally, for instance by applying a lighted match to one point in a pile of the powder.  Water or moisture reacts with it energetically, producing lead monoxide, hydroxide or the like.  The lead monoxide may be converted into red lead by heating it in a furnace or pan at a temperature not exceeding 500 DEG  C.  Specifications 176,924, 198,647 and 215,222 are referred to.
Patent GB-1399406-A (GB)
Title: Process for the preparation of  rho-phenylenediamine
IPC: C07C67/00
Filed: 1973-03-30
Abstract: 1399406 p-Phenylene diamine AKZO NV 30 March 1973 [1 April 1972] 15439/73 Heading C2C p-Phenylene diamine is prepared by a process in which one or more polyesters of terephthalic acid are reacted in a first stage of the process with ammonia which contains not more than 15% by weight of water and the resulting terephthalic acid diamide is then subjected to Hofmann degradation in a second stage of the process. Ammonolyers of terephthalic acid polyesters is preferably carried out either in the liquid or in the gas phase at 50‹ to 300‹ C. and at ammonia pressures ranging from normal pressure to 300 atmospheres. Preferably ammonia which has a water content of not more than 5% by weight is used. Advantageously the Hofmann degradation is carried out using aqueous reaction mixtures at concentrations of the diamide of 3 to 5% by weight.
Patent GB-813522-A (GB)
Title: Rotor assemblies for gas turbine engines
IPC: F01D5/30
Filed: 1957-05-16
Abstract: 813,522. Gas turbine engine bladed rotors. MACKAY, J. D. A. May 16, 1957 [May 18, 1956], No. 15595/57. Class 110 (3). A bladed rotor assembly for a gas turbine engine comprises a rotor disc 10 having a screwed cylindrical surface and a blade-carrying ring 12 having a complementary screwed surface which engages the screwed surface of the rotor disc. The blade-carrying ring has slots 14 extending therethrough in which the radiallyprojecting rotor blades 15 are mounted, the rotor disc in the assembly closing the slots in the blade-carrying ring so as to secure the blades against inward radial movement. Means are provided to cause rotation of the two parts relatively to each other for assembly or dismantling. The holes 14 in the blade-carrying ring 12 taper radially outwardly and the blade roots 15a are correspondingly shaped whereby radially outward displacement of the blades 15 is prevented. A circumferential groove 17 is formed in the cylindrical surface of the rotor disc, cooling air being supplied to the groove through openings 18 in the ring 12, the air finally discharging through longitudinal passages in the blades. The blades may be held temporarily in the ring 12 during assembly or dismantling by means of a resilient ring member 19 which is engaged within the ring 12 so as to bear against the blade roots. The ring 12 in Fig. 1 is formed with slots 21 which may be engaged by lugs 20a of the ring tool 20. In Fig. 2, the ring 12 is formed with gear teeth 23 which may be engaged by the pinion 25, rotation of the handle 27 thus enabling the ring 12 to be screwed on to or off the rotor disc 10.
Patent GB-155990-A (GB)
Abstract: 155,990. Moffat, T. H., and Gibson, W. J. Dec. 19, 1919. Tickets, issuing; printing-arrangements for; registering and recording number and va,lue of.- In apparatus adapted to print cash figures from a pair of hand-set rotary type carriers, one of which makes a record on a strip retained within the apparatus, the type carriers are mounted in a spring-pressed frame normally held out of printing position by a detent released, on the depression of a second spring-controlled frame, through the device by which the type-carriers are set. An inking-pad, normally in position to ink the type, is displaced therefrom on the depression of the second spring-pressed frame. A feeling-device to prevent operation in the absence of a ticket, and an operation counter are provided. The duplicate type wheels 1, 2 are carried on a shaft 3 mounted in bearings 3<a> secured to plates 4 moving on pillars 12 carried by frame plates 13, 14. The plate 3 is normally supported, against the pressure of springs 15, by the lower plate 17<c> of a frame 17 forced upwards by strong springs 18. A detent 16 serves to retain the type frame in the raised position, when the frame 17 is lowered, until rocked by a pin 20 on the plate 17<a>, whereupon the types are lowered to print by the springs 15. Depression of the frame 17 is effected through the setting-head 6, which is adapted to slide on and turn with the setting-spindle 7. Downward movement of the frame 17 serves to move the inking-pad 22 away from the type by means of a pin 25 on the pillar 17<b> rocking, through a. link 26 and a bellcrank lever 27, a cam-plate 29 connected to the ink pad and supported by pins 31, 33 engaging slots 32, 34. The slot 34 is formed with a cam portion so that the pad 22 is first lowered before being moved laterally. The record-strip 38 is fed by a link 45 connected to the bell-crank lever 27 and provided with a pawl 44 engaging a ratchetwheel on the shaft 42 of the draw-off roll 41. Operation of the device before the insertion of a ticket is prevented by the arm 61b of a bell-crank lever 61 which prevents depression of the setting- head until rocked by a rod 60 moved upward on the insertion of a ticket in the ticket slot. The operation counter 70 is actuated by a rod 71 connected to the plate 4.
Patent GB-262365-A (GB)
Title: Improvements in or relating to motor trains of railway and like vehicles
IPC: B61F3/12
Filed: 1925-06-16
Abstract: 262,365. Alley, S. E., and Cockburn, G. E. June 16, 1925. Couplings, non - automatic.-A compound rail or like vehicle is made up of a propelling vehicle and other vehicles on each side of it, the latter resting with their near ends upon the under frame of the former. The coupling between the propelling vehicle and the others comprises partspherical plates 29, 31, a flat plate 33, a buffer 34 held in place by a ring 35 carried by brackets 36 on a cross-member 37, and a pin 40. Near each end of the member 37 is mounted a housing containing a buffer, constituting a resilient side bearer.
Patent GB-496737-A (GB)
Title: Improvements in and relating to methods of regulating the characteristics of reactances
IPC: H01F29/14
Filed: 1937-06-05
Abstract: 496,737. Inductances. BRITISH THOMSON-HOUSTON CO., Ltd. June 5, 1937, No. 15641. Convention date, June 6, 1936. Addition to 480,067. [Class 38 (ii)] Relates to an arrangement in which the reactive characteristics of a choke are varied by means of D.C. premagnetization as described in the parent Specification and consists in connecting the choke windings D', D<2> to form an unbalanced bridge, the A.C. circuit e being connected across one diagonal, and a rectifier G in series with a resistance r being connected to the other diagonal, so that premagnetization of the core of the choke is effected by the out-of-balance voltage. Adjustment may be effected by varying the resistance r or by adjusting the tapping point o<2>.
Patent GB-882292-A (GB)
Title: Improvements in or relating to sliders for sliding clasp fasteners
Inventor: EVANS HERBERT
IPC: A44B19/30
Filed: 1959-05-07
Abstract: 882,292. Sliding clasp fasteners. FLEX FASTENERS Ltd. April 20, 1960 [May 7, 1959], No. 15699/59. Class 44. In a sliding clasp fastener having a combined locking and pull element 7, Figs. 2, 4,  damage to the fastener should excessive unintentional fastener opening forces arise is prevented by providing the slider body 1 and the locking element 7 with cam surfaces 17, 19, which engage under the action of the forces and withdraw a locking finger 14 of the element 7 from the interlocked fastener elements 6. The element 7 is spring-loaded into locking engagement by a spring 16 and is mounted on the body 1 through a pin 12 and slot 11 connection to allow longitudinal play relative thereto. The spring 16 may be omitted. In a further fastener a cam 124, Fig. 6, on the pivot pin 123 of a combined locking and pull element 107 coacts with two spaced cam faces 118 on the slider body 101, when excessive unintentional opening forces occur to raise a locking finger 114 from the interlocked fastener elements against a flat spring 116. In order to initially place the element 107 and the spring 116 in the body 101 the body cover 121 is divided as shown in Fig. 9 for subsequent swaying into a closed condition. In a modified slider the locking finger 114 is divided into two parts offset either side from the vertical central plane of the body 101 such that the spring 116 can pass between the parts. In a further modified form, instead of a single semi-cylindrical cam 124, there are provided two semi-cylindrical cams spaced apart to the same extent as the cam faces 118.