baber/WOPTO huggingface dataset:
Patent GB-273806-A (GB)
Title: Improvements in toothbrushes
IPC: A46B7/04
Filed: 1926-04-07
Abstract: 273,806. Frary, C. A. April 7, 1926. Handles with recessedback retaining-devices for brushes.-The handle 8 of a toothbrush is formed at one end with a loop 9 and a slot 12, a bristle-carrying member 10 being adapted to fit in the loop and to be retained therein by the pressure of the walls of the loop. A shoulder 13 forms a seat for the member 10. The handle is preferably formed of mouldable material such as celluloid.
Patent GB-921092-A (GB)
Title: Improvements in or relating to aircraft instruments
IPC: G05D1/00
Filed: 1959-03-17
Abstract: 921,092. Electric indicating systems. MINNEAPOLIS - HONEYWELL REGULATOR CO. March 17, 1959 [March 17, 1958], No. 9223/59. Class 40 (1). In order to determine if the acceleration of an aircraft on take-off is sufficient to allow it to be safely airborne in the existing conditions, the minimum acceleration is determined in a computer which is manually fed with the relevant current data, and is compared with the actual acceleration, an alarm being given if the latter is less than the former. The computed minimum acceleration is continuously varied as the plane moves along the runway, by causing an aircraft wheel to drive the slider of a potentiometer in the computer. The actual acceleration is measured by a seismic mass device causing proportional movement of the slider of a potentiometer. The equations solved by the computer relating the minimum acceleration with the existing physical conditions are given. A special indicator shows the pilot the distance to the point of no return along the runway, and a warning lamp indicates the need to abort the take-off when the measured acceleration is less than the minimum computed safe acceleration. A modified computer allows for the abort signal to be prohibited until the plane has run a predetermined distance along the runway.
Patent GB-313670-A (GB)
Title: Improvements in cards for holding buttons and the like
IPC: A44B7/00
Filed: 1928-03-27
Abstract: 313,670. Waldes, J., Puc, H., Merzinger, E., and Waldes, Z. March 27, 1928. Cards for displaying.-Buttons &c. of the kind having a collar connected by a neck to the head of the button are mounted on a card support comprising two cards 1, 2 having registering apertures 5, 7, one being larger than the other so that the collar 6 of the button 9 can be pushed through both apertures and is held by the edge of the smaller aperture 7 while the larger one encircles the neck 8 of the button. Pin fastenings 4 for the buttons are mounted as usual in slots in the cards.
Patent GB-887666-A (GB)
Title: Process for the purification of 2-ethyl-cis-crotonoylurea
IPC: C07C273/18
Filed: 1959-03-17
Abstract: The invention comprises a process for the purification of 2-ethyl-cis-crotonoylurea which has been prepared by the dehydrohalogenation of carbromal with cadmium oxide which comprises contacting the hot dehydrohalogenation reaction mixture with an aqueous solution of an alkali metal hydroxide or an alkaline earth metal hydroxide, cooling the reaction mixture to precipitate 2-ethyl-cis-crotonoylurea, slurrying the precipitate with an aqueous solution of acetic acid and filtering the slurry to obtain the desired product as a solid substantially free from residual cadmium ions.  An example is given and the product is compared with the products of similar examples which omit the treatment with alkali hydroxide or replace this treatment by treatment with sodium carbonate or bicarbonate, ammonium carbonate or phosphoric acid and some of which also omit the treatment with acetic acid.
Patent GB-1180791-A (GB)
Title: Hair Dryer
IPC: A45D20/18
Filed: 1967-02-27
Abstract: 1,180,791. Hair dryers. SUNBEAM CORP. 27 Feb., 1967 [11 July, 1966], No. 9290/67. Heading A5R. A portable hair dryer comprises a motorblower-heater unit (16) housed within a portable casing 10, which casing has an air inlet 40 and an air outlet 28 formed thereon, a flexible electric power cord 25 for unit (16), an axially collapsible and expansible hose 23 engageable with the air outlet, the outer end of hose 23 being adapted for removable connection to an associated collapsible hair dryer cap 24, and casing 10 including two separate storage compartments, namely (i) a hose storage compartment 21 comprising an elongated passageway for receiving hose 23 in an axially collapsed condition, the air outlet being at one end thereof, compartment 21 also comprising an exhaust passageway within the casing, hose 23 being engageable with the casing at the hose storage compartment whereby the hose in its expanded condition delivers air from the outlet to cap 24 and (ii) a cap and cord storage compartment 22 having a size sufficient to receive cap 24 and flexible power cord 25 when the cord is in a collapsed condition for storage in this compartment. The motor-blower-heater unit (16) comprises an electric motor (17) on a common shaft with blower 18 (comprising a generally circular plastics disc 18' having a plurality of radially extending vanes 18") and also electric heater 19. Compartment 22 is provided with an access opening (26) which is adapted to be closed by a hinged or pivoted door 27 which comprises an end panel of the casing 10.
Patent GB-894134-A (GB)
Title: New active insecticidal esters of the pyrethrum type and a process for the production thereof
IPC: C07C61/39
Filed: 1959-03-18
Abstract: The invention comprises esters of trans-2,2-dimethyl-3-phenylcyclopropane carboxylic acid of formula <FORM:0894134/IV (b)/1> with ketoalcohols of formula <FORM:0894134/IV (b)/2> where R is an ethylenically unsaturated aliphatic or alicyclic radical containing 3 to 5 carbon atoms.  They are prepared by reacting cis- and/or trans - 2, 2 - dimethyl - 3 - phenylcyclopropane carboxylic acids with thionyl chloride to give the trans-acid chloride which is then esterified with the keto-alcohol.  The products have pyrethrinlike insecticidal activity.ALSO:Insecticidal solutions, e.g. in acetone, comprise a pyrethrin-like substance which is an ester of trans-2,2-dimethyl-3-phenylcyclopropane carboxylic ester <FORM:0894134/VI/1> with a ketoalcohol of formula <FORM:0894134/VI/2> where R is a C3-5 ethylenically-unsaturated aliphatic or alicyclic radical (see Group IV (b)).
Patent GB-1411676-A (GB)
Title: Multiple effect evaporator apparatus
IPC: B01D1/26
Filed: 1973-02-26
Abstract: 1411676 Multiple effect evaporator EBARA MFG CO LTD 26 Feb 1973 [25 Feb 1972] 9368/73 Heading B1B In multiple effect evaporation apparatus, comprising superposed chambers 6, liquid passing through pressure difference maintaining plate 3 is partially evaporated as it flows down tube 5 as a thin film, the unevaporated liquid collects in the vessel 2 below the tubes for passage via plate 3 to the next group of tubes 5, and the vapour passes through vapour port 7 to contact the tubes 5 to vapourise the liquid in the tubes. Improved heat exchange is effected by causing vapour to flow transversely to the tube 5 from port 7 to outlet 11.
Patent GB-330670-A (GB)
Title: Improvements relating to destination and route indicators for vehicles
IPC: B60R7/04
Filed: 1929-03-23
Abstract: 330,670. Browne, G. W. March 23, 1929. Hinged elements, rotary apparatus with.-A destination and route indicator for passenger vehicles comprises separate cards &c. 6 which are threaded on members 5 so shaped as to permit the cards to be turned in sequence into display position through substantially a complete revolution without removal. Figs. 6, 7 and 8 show differently shaped members 5 mounted along a rod &c. 4, those in Figs. 6 and 7 having a slot 10 whereby the cards can be put on and off, and that in Fig. 8 being springy so that one end 11 can be withdrawn from the rod 4 for this purpose. The rod 4 may be attached to the vehicle by a swivel joint and a spring clip &c., or a folding casing 17, 18, Fig. 4, may be provided to hold one or two sets of the cards, spring or other means 20 engaging the bottom edges of the cards to prevent vibration.
Patent GB-715656-A (GB)
Title: Improvements in apparatus for making four-sided nuts from wire or rod having a roundcross-section
Inventor: EADE CARLETON WALTER
IPC: B21K1/68
Filed: 1952-04-15
Abstract: 715,656. Forging nuts. EMHART MANUFACTURING CO. April 15, 1952, No. 9419/52. Class 83 (4). Apparatus for forging four-sided nuts from cylindrical slugs comprises means for feeding the slugs 20, Fig. 1, in succession along a channel 24 to a first forming station 27 where they are rough forged into four-sided blanks 20 in a die 84, Fig. 3, by a punch 83 movable in a direction normal to the axis of the slug, and means 28 for feeding the blanks 20 into open peripheral pockets 37 of an intermittently rotating conveyer or dial 38 which conveys them successively to a plurality of work stations 39, 40, 41 at each of which a further operation is performed. The nut blanks are finally ejected by a plunger at a station 42. The punch 83 carries a spring-loaded plunger 93 for holding the blank in the die 84. The first operation produces a rough forged blank 20, Figs. 14, 15 (not shown). At station 39 the blank is further forged in a square die by a punch of square cross-section which produces the blank 20, Figs. 16, 17 (not shown). A spring-loaded ejector pin is provided at station 39 for removing the blank from the die and returning it to the pocket 37 of the dial. At station 40, Fig. 5, the blank is countersunk on both its upper and lower surfaces by an upper punch 72 and a lower punch 98 which afterwards ejects the blank from the die. The punch 72 has a tapered portion which traps oil in the countersunk recess made by the conical end of the punch and this facilitates the disengagement of the punch and prolongs the life thereof. The bottom of the die has chamfered corners which produce chamfered corners on one surface of the countersunk blank 20, Figs. 18, 19 (not shown). The other surface of the blank has sharp corners. At station 41, Fig. 6, the blank is pierced by a punch 74 which also traps oil in the countersunk recess, whereby a slug of metal between the countersunk recesses is removed and discharged through a bore 104 in the base of the press. A spring- loaded plunger 103 ensures that the slug is separated from the punch and a stripper plate 101 prevents the blank from lifting with the punch. The punches are each mounted against a backing block 128, Figs. 3, 6, in a tapered collet 127 carried by a sleeve 121 screwed into a punch holder 120. The sleeve is adjustable in a punch holder and is secured therein by lock-nuts 123, 124. Switches 116, Fig. 1, actuated by pins 114 carried by spring-loaded locking plates 107 pivoted on pins 112, are adapted to stop the apparatus when no blank is carried to a work station such as may occur in the event of a blank sticking to a punch. In another embodiment the apparatus produces nuts with chamfered corners on both surfaces. The apparatus may also be used for making rectangular nuts which have flat or rounded ends. U.S.A. Specification 2,069,008, is referred to.
Patent GB-856448-A (GB)
Title: Process for welding cast iron
IPC: B23K35/30
Filed: 1958-03-25
Abstract: 856,448. Welding by fusion. ETABLISSEMENT METALLOCHEMIE. March 25, 1958 [June 21, 1957], No. 9456/58. Class 83 (4). In a process of welding cast iron granulated cast iron is applied to the parts to be welded and is melted by the application of local heat using a nickel electrode. The granulated cast iron is mixed with a flux.
Patent GB-208073-A (GB)
Title: Improvements in electromagnetic interrupters and like apparatus
IPC: H01H47/00
Filed: 1923-04-06
Abstract: 208,073. Western Electric Co., Ltd., (Rutten, L. van). April 6, 1923. Electromagnetic interrupters.-An interrupter designed to open or close circuits for periods of a fraction of a second to several seconds comprises an electromagnet with two windings 11, 11<1>, an armature 9, and a polarizing permanent magnet arranged as in an alternating current bell. The armature carries springs 4, 4<1> carrying masses 5, 5<1>. When the armature is attracted by the winding 11<1>, spring 4 strikes a contact 7 and makes several oscillations before coming to rest. The winding 11' is thus short circuited slowly and ultimately the armature is pulled over by the winding 11, which is then short-circuited in a similar manner. Resistances 10, 10<1> prevent sparking at the contact 7. The period of closure of the circuit is governed by means of the screws shown at the top of Fig. 4.
Patent GB-160830-A (GB)
Title: Vacuum rinsing apparatus for wounds
IPC: A61H35/00
Filed: 1921-03-31
Abstract: 160,830. Reinert, C. March 31, 1921. No Patent granted (Sealing fee not paid). Irrigators and like appliances; pneumatic appliances.-Relates to apparatus for irrigating wounds whilst under reduced pressure of the kind in which a receptacle enclosing the wound is provided with an inlet for liquid and an outlet for the used liquid and for connection to the suction apparatus. and consists mainly in the provision of auxiliary openings in the receptacle through which instruments may be inserted or to which an automatic vacuum relief valve may be fitted. In the form shown in Fig. 1, a glass receptacle A for enclosing a limb is provided with three inlet nozzles F, F<2>, F<3>, a suction pipe P, a stoppered opening L for the introduction of instruments, an opening K for connection to a relief valve, an opening for a gauge V, and with a pneumatic packing ring M for making close contact with the limb. Fig. 2 shows a modified form for application to the surface of the body and provided with an inlet neck C having a sprinkler nozzle H, a suction nozzle B. and a connection K for a relief valve. Fig. 3 shows a similar construction with a relief valve R in position, with an interchangeable mouthpiece E having a ground-on joint with a receptacle A, and with an inlet nozzle W forming an ejector with the outlet B. A modification for use in cavities of the body, such as the mouth, is shown in Fig. 4. Thermometer pockets may be provided in the inlet passages of the various appliances. The Specification as open to inspection under Sect. 91 (3) (a) describes also an appliance without the auxiliary openings referred to above, as shown in Fig. 1 (Cancelled), an appliance wherein the pneumatic packing ring is replaced by an elastic sleeve drawn over the mouth of the receptacle and over the limb to be treated, and an appliance, Fig. 4 (Cancelled), wherein the inlet pipe f has an enlargement ground to fit a conical seat formed in the receptacle A. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1219832-A (GB)
Title: Method of testing gasoline blending components
Inventor: JENKINS GILBERT IVOR
IPC: G01N33/28
Filed: 1968-02-28
Abstract: 1,219,832. Analysing gasoline blending components. BRITISH PETROLEUM CO. Ltd. 17 Feb., 1969 [28 Feb., 1968], No. 9653/68. Heading B1X. Gasoline blending components which have low olefin content and are lead-free are tested to determine at least one of the parameters research octane number, Reid vapour pressure, specific gravity and motor octane number by a method comprising (a), separating the sample into twelve groups; - Group 1, nbutane and all compounds more volatile than n-butane; Group 2, all compounds less volatile than Group 1 and more volatile than Group 3; Group 3, n-pentane; Group 4, all compounds less volatile than Group 3 and more volatile than Group 5; Group 5, nhexane; Group 6, all compounds less volatile than Group 5 and more volatile than Group 7; Group 7, benzene; Group 8, all compounds less volatile than Group 7 and more volatile than Group 9; Group 9, toluene; Group 10, all compounds less volatile than Group 9 and more volatile than Group 11; Group 11, all C8 aromatic hydrocarbons and other compounds with b.pt in the same range; Group 12, all compounds less volatile than Group 11; (b) determining the quantity of material in each group, for example as percentages by weight; and (c), calculating manually or by computer using regression equations, utilising the quantities determined in (b), at least one of the parameters required. The sample may be separated chromatographically; the results when obtained in digital form may be fed directly into a computer.
Patent GB-309584-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H05B41/06
Filed: 1929-03-26
Abstract: 309,584. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. April 13,1928, [Convention date]. Vacuum tubes. - An electric discharge tube 1 comprises an incandescent cathode 2, the circuit of which comprises an interrupter 9 actuated by the discharge current. The initial heating of the filament is obtained from a part 7 of the secondary winding of a transformer which supplies the discharge current, and is interrupted when the discharge current reaches such a value that it can maintain the filament at its emitting temperature. According to modifications, the invention is applied to a double-wave rectifier (Fig. 2, not shown); the interrupter consists of a bimetallic strip within the tube heated indirectly (Fig. 3, not shown) or directly (Fig. 4, not shown) by the discharge current. Specifications 298,906 and 300,614 are referred to.
Patent GB-889079-A (GB)
Title: Improvements relating to bleaching and cleansing compositions
IPC: C11D3/39
Filed: 1960-03-18
Abstract: A cleansing composition comprises an alkali metal monopersulphate and diethylene triamine pentaacetic acid or an alkali metal salt thereof. The amount of oxygen supplied by the alkali metal monopersulphate, which may be supplied as "oxone", a mixture of KHSO5, KHSO4 and K2SO4 in the mole proportions of 2:1:1, is preferably 5-600 p.p.m.  The proportion of diethylene triamine pentaacetic acid or alkali metal salt thereof used is preferably at least 1% by weight, based on the alkali metal monopersulphate.  Washing compositions may also contain sodium sulphate, sodium metasilicate, sodium carbonate, potassium carbonate, tetrasodium pyrophosphate and sodium chloride, and detergent and abrading compositions may contain sodium carbonate, soap and an abrasive powder, e.g. silica or feldspar.  Specification 866,492 is referred to.ALSO:A bleaching or cleansing composition comprises an alkali metal monopersulphate and diethylene triamine pentaacetic acid or an alkali metal salt thereof.  The amount of oxygen supplied by the alkali metal monopersulphate, which may be supplied as "oxone", a mixture of KHSO5, KHSO4 and K2SO4 in the mole proportions of 2 : 1 : 1, is preferably 5-600 p.p.m.  The proportion of diethylene triamine pentaacetic acid or alkali metal salt thereof used is preferably at least 1% by weight, based on the alkali metal monopersulphate.  Bleaching and washing compositions may also contain sodium sulphate, sodium metasilicate, sodium carbonate, potassium carbonate, tetrasodium pyrophosphate and sodium chloride, and detergent and abrading compositions may contain sodium carbonate, soap and an abrasive powder, e.g. silica or feldspar.  The bleaching of cotton and nylon and other synthetic fibres is described. Specification 866,492 is referred to.
Patent GB-526919-A (GB)
Title: Improvements relating to machines for polishing or grinding lenses and other objects
IPC: B24B57/00
Filed: 1939-03-29
Abstract: 526,919. Grinding and polishing lenses &c. TAYLOR, D. March 29, 1939, No. 9777. [Class 60] A machine for grinding and polishing lenses &c. has an air operated ejector for conveying fluid charged with abrasive to the tool and work. The tool b is supported by an arm e in a container a for the fluid and is mountec on a tube d terminating in an ejector n. The work c is attached to a runner f recessed tc engage the pointed end of an arm h carried by a driven spindle g having a spring m for controlling the grinding pressure. In a modification, shown for grinding spherical surfaces the tool b is driven and the tube d is separate from but fits over the ejector tube. The runner is carried by a weighted lever arm. Both too] and runner may rotate.
Patent GB-356170-A (GB)
Title: Improvements in the manufacture of filaments, yarns, bristles, straw and other products from organic esters of cellulose
IPC: D01F2/28
Filed: 1930-03-27
Abstract: Filaments, yarns, bristles, straw, and the like are made by spinning a solution of an organic ester of cellulose containing less than two ester radicles per molecule of cellulose.  The acetyl value of a cellulose acetate thus used may be 40-48 per cent, preferably 45-48 per cent, calculated as acetic acid.  An acetate of high acetyl value may be hydrolysed by addition of say 25-75 per cent of its weight of water, or by prolonging the ripening; or may be dissolved in suitable solvents and hydrolysed with water and a little sulphuric acid or other agent; or may be partly saponified by alkali.  Suitable solvents are mixtures of 60-85 parts acetone and 40-15 parts water, or of methyl or ethyl alcohol with methylene chloride, ethylene dichloride, or dichlorethylene.  Dry or wet spinning may be employed. An example of dry spinning is given.  The products have a good moisture regain and can be made into fabrics of closer knit than formerly. They absorb dyes very readily.  Specification 269,530, [Class 2 (ii), Cellulose &c.], is referred to.
Patent GB-1530009-A (GB)
Title: Re-breathing apparatus
IPC: B63C11/18
Filed: 1976-03-11
Abstract: 1530009 Respiratory apparatus W B SHELBY 11 March 1976 09833/76 Heading A5T Respiratory apparatus particularly for use by divers comprises a facial breathing attachment 10 connected to a gas circuit supplied with a breathable gas mixture of oxygen and an inert gas, e.g. helium or nitrogen, from a cylinder 22 via a valve 41 which opens with increasing ambient pressure, the circuit also being connected to a cylinder 26 containing oxygen with little or no inert gas, via a solenoid valve 31 which is opened when the oxygen content of the breathable gas falls below a preset level to permit inflow of oxygen into the circuit whereby the oxygen content of the breathable gas remains constant. The valve 31 is controlled by means of transducers 34, 35 positioned in a chamber 32 of the gas circuit, the transducer 34 being responsive to total gas pressure and the transducer 35 to oxygen partial pressure. The outputs of the transducers are fed to respective amplifiers 52, 53 which are connected to a comparator 56 the output of which indicates percentage oxygen content of the breathing gas and operates the drive means 58 of the solenoid valve 31, the output being transmitted if the oxygen content falls below a pre-set value. The output of amplifier 52 reaches comparator 56 via a switch 70 having two positions corresponding to helium and nitrogen as inert gas. Switch 70 is also connected to a lamp alarm system 57 comprising lamp 76 which lights when oxygen content is too high, lamp 77 which lights when oxygen content is within permitted limits and lamp 78 which lights when oxygen content is too low. The oxygen partial pressure signal is also fed to a comparator (90 Fig. 4 not shown) coupled to a control setting maximum permitted oxygen partial pressure, the comparator (90) operating a solenoid valve (92) to shut-off oxygen supply from cylinder 26 if oxygen partial pressure is too high. A circuit providing a meter reading percentage oxygen content and total breathing gas pressure alternately, and a digital controller circuit therefor (Fig. 5) are described. The lamps 76, 77, 78 are conveniently arranged in a mask worn by the user. The gas circuit also includes a carbon dioxide scrubber 48 and a fan 49 or a diaphragm pump may be used to aid gas circulation. An additional oxygen partial pressure transducer 36 feeding an independent meter may be provided. "Logging" lines may be connected in the circuits to control a pen and paper recorder whereby operation of the apparatus is recorded. Manually operable valves 24, 28 may be provided in the gas circuit to permit the user to override the controls.