baber/WOPTO huggingface dataset:
Patent GB-339306-A (GB)
Title: Improvements in and relating to electrical condensers and the method of making the same
IPC: H01G4/22
Filed: 1929-09-03
Abstract: 339,306. Danziger, H. I. Sept. 3, 1929. Condensers. -An insulating-strip for condensers, such as of the wound type, comprises layers of untreated insulating material 14, 15 such as paper separated by a layer of material 13, perforated or of a foraminous character so as on impregnation to absorb and have its interstices filled with dielectric material. Alternatively, a layer of paper may be interposed between two perforated layers. Additional alternate layers of the two materials may be used. The foraminous layer may be of mesh or a coarsely-woven textile. In preparing the strip for winding the layers may be attached to one another by a surface coating of adhesive, which may be wax caused to bind by application of heat and pressure.
Patent GB-463425-A (GB)
Title: Improvements in and relating to rotary moulding machines for biscuit doughs and the like
IPC: A21C11/00
Filed: 1935-09-27
Abstract: 463,425. Moulding dough by rolling-machines. BAKER, G. R., and BAKER PERKINS, Ltd. Sept. 27, 1935, No. 26731. [Class 87 (ii)] In moulding-machines for biscuit doughs &c. in which the die roller 1 travels in contact with an endless apron 6, a pad 7 is adapted periodically to apply pressure to the dough in the cavities in the roller through the apron 6. The pad 7 which may be of rubber, cork, felt, or'metal is moved towards and from the apron by a cam or eccentric operated lever 12 acting on a plunger 10 carrying a bed 9 which supports, through rollers 8, the carriage 7a of the pad 7. The carriage 7a is oscillated on the bed 9 by a spring- retracted bell-crank lever 14 operated by a cam or eccentric. In a modification, the bed is mounted on oscillating levers, while the carriage for the pad is adjustably linked to an oscillating arm.
Patent GB-1338537-A (GB)
Title: Organosiloxane composition
IPC: C08L83/04
Filed: 1972-06-08
Abstract: 1338537 Organosiloxane compositions DOW CORNING CORP 8 June 1972 [24 June 1971] 26733/72 Heading C3T A curable composition comprises (1) a vinyldiorganosiloxy - terminated polydimethylsiloxane of viscosity 1000-100,000 es. at 25 C.; the terminal organo groups, other than vinyl, being methyl and/or phenyl, (2) a crosslinking mixture consisting of (a) an organosiloxane having an average of 5-20 silicon atoms per molecule comprising (CH 3 ) 2 SiO and CH 3 (H)SiO units and terminal units (CH 3 ) 3 SiO 0À5  or (CH 3 ) 2 (H)SiO 0À5 , there being present an average of at least three Si-H groups per molecule, and (b) the organosiloxane (a) in which an average of one silicon-bonded hydrogen atom has been replaced by (RO) 3 Si(CH 2 ) x -, where R is CH 3 -, C 2 H 5 - or CH 3 COO-, and x=2 or 3, the said mixture (2) being present in an amount sufficient to provide at least one and not more than ten silicon-bonded hydrogen atom per vinyl radical in (1), said mixture (2) having present 15-75 mol. per cent (b) where the sum of (a) and (b) is 100 mol per cent. Mixture (2) can be prepared by heating part of the organosiloxane (a) with a silane such as vinyltriacetoxysilane, allyltrimethoxysilane, vinyltriethoxysilane, vinyltrimethoxysilane, allyltriacetoxysilane and allyltriethoxysilane optionally in the presence of a Pt catalyst. The composition optionally includes 0-200 pbw of a filler per 100 pbw of the composition, such as fume silica, silica aerogel, silica xerogel, silica soot, carbon black, quartz, diatomaceous earth, metal oxides, carbonates and silicates, and hydrophobic silica fillers. A platinum catalyst may also be present. In particular examples a series of silicone elastomer compositions are prepared by mixing 100 pbw of a methylphenyl vinylsiloxy-terminated polydimethylsiloxane of viscosity 15,000 cs. at 25 C., 30 pbw fume SiO 2  hydrophobed by trimethylsiloxy groups, a chloroplatinic acid catalyst and 2À5 pbw of a series of cross-linkers prepared by partially reacting a copolymer containing two trimethylsiloxane units, three dimethylsiloxane units and five methylhydrogensiloxane units with different silanes selected from the list above. Uses.-Elastomers; potting compounds; coatings; electrical insulation.
Patent GB-610534-A (GB)
Title: Improvements in radio distance measuring systems
IPC: G01S1/02
Filed: 1945-10-12
Abstract: 610,534. Radiolocation. RUST, N. M., and BRANDON, P. S. Oct. 12, 1945, No. 26760. [Class 40 (vii)] In a continuous wave radar system, the transmitted carrier wave is amplitude modulated by a frequency modulated signal, echo signals being mixed with the signal then being transmitted and the resultant being applied to separate amplitude and frequency demodulation channels, the outputs of which are combined. In the embodiment illustrated, a triangular wave output from 4 is applied as a sweep wave to the cathode-ray tube and to control the rate of change of frequency of the frequency modulated signal developed at 3, the output of which consequently varies as shown at (a). The output of 3 is applied via 2 to amplitudemodulate the carrier wave output from the transmitter 1. Reflected signals and directlyreceived signals are combined in the receiver, amplified at 7 and applied to parallel channels comprising (a) amplitude-modulation detector 8 and frequency-selective circuit 9 and (b) limiter 10, frequency-modulation detector 11 and frequency-selective circuit 12 which is tuned to the same frequency as circuit 9. The outputs of the two channels are combined in circuit 13 in such a proportion that the output thereof is independent of small changes of range. This output is rectified at 14 and applied to the range indicating cathode-ray tube. It is stated that instead of varying the rate of change of frequency of the signal developed by 3 and maintaining the beat frequency selected by circuits 9 and 12 constant, the rate of change of frequency may be kept constant and the frequencies of selection of circuits 9 and 12 being varied, the horizontal deflection in the cathode-ray tube being varied in synchronism therewith.
Patent GB-605474-A (GB)
Title: Improvements in pans and similar utensils
IPC: A47J45/08
Filed: 1945-10-12
Abstract: 605,474. Stewpan &c. handles. BLONDEL, F. L. Oct. 12, 1945, No. 26771. Convention date, Nov. 3, 1944. [Class 66] To minimize heattransmission between the body or lid of a saucepan &c. and the handle, contact is made along narrow projections 7 formed either on the attachment face 3 of a boss 1 on the pan or lid, or on a corresponding face 6 on a boss 5 of the handle. The handle is secured by tubular spring split-pins 9 in blind holes 10 and 10a in the boss 1. Pans and lids may be made of aluminium. U- shaped handles for lids and stewpans may be made of malleable iron and straight handles for saucepan bodies may be tubular and of cast iron.
Patent GB-355535-A (GB)
Title: Improvements in and relating to vacuum electric switches
IPC: H01H33/666
Filed: 1930-09-08
Abstract: 355,535. Vacuum switches. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Sept. 8, 1930, No. 26799. Convention date, Sept. 9,1929. [Class 38 (v).] In a high - tension vacuum switch the current leading-in members 1, 2 which enter the evacuated container are at the outside fixedly connected with one another by means of a frame consisting of endplates 7 and rods 9, 10, one at least of the current leading-in members being connected through an elastic bellows member 4 with a contact 5 to be moved by a light rod 4 from the outside. In the arrangement shown, the upper leading-in conductor 13 which carries the fixed contact 15 and the lower leading-in conductor are connected with the container through flexible bellows devices to save damage from shock. A stranded flexible connection 17 may be provided inside the tubular lead-in conductor 2 to afford an additional connection between the contact 5 and the connector 19. The upper leading-in conductor 1 is adjustably mounted in the frame.
Patent GB-158347-A (GB)
Title: Improvements in or relating to devices for cleaning food-basins or the like
IPC: A47L17/06
Filed: 1919-11-01
Abstract: 158,347. Barrett, J. R. Nov. 1, 1919. Scrapers, pan and like. -A device for cleaning remains' of food from jars &c. comprises a rubber squeegee with the handle b so fixed that the rubber a is freelv flexible transversely to its width and transversely to its length.
Patent GB-503026-A (GB)
Title: Improvements in mirror drums for television scanning devices
IPC: H04N3/08
Filed: 1937-10-05
Abstract: 503,026. Television. TRAUB, E. Oct. 5, 1937, No. 26936. [Class 40 (iii)] In a mirror drum a pair of parallel discs, one of which may be polygonal and one circular, are accurately shaped to locate correctly the mirrors 8 which they support by clamps 9. The polygonal disc may be formed from a thin slice cut from an accurately worked block or a number of approximately shaped discs may be clamped together to form a prismatic block which is then accurately finished. To correct slight inaccuracies in angular setting, the peripheries of the discs may be recessed as shown by the dotted lines on Figs. 2 and 3 and the upstanding portions of the periphery filed. In a modification, the disc 6 is shaped as in Fig. 4, the mirror resting on a corner directly opposite its point of contact with the polygonal disc.
Patent GB-266417-A (GB)
Title: A machine for the boring, facing, radiusing and oil grooving of connecting rods andmain bearings and the like
IPC: B23B41/12
Filed: 1925-10-28
Abstract: 266,417. Bradley, J. W. Oct. 28,1925. Boring-bar machines ; boring-bars.-A machine for boring, facing, radiusing and oil-grooving connecting-rods, main-bearings &c. comprises a base formed of three channel-bars 1 carrying bearings 4 for a boring-bar 6 and bearings 5 for a feeding-screw 7. The boring-bar is splined at 10 to a bush 8 rotated by a hand-wheel 18 and is hollow to receive an axially-adjustable rod 13 having an inclined cam 14 for the adjustment of a radial cutter 12. The rod 13 is moved axially by a nut 16 engaging the screwed end of the rod, graduations being provided on the nut to read in thousandths of an inch of radial adjustment. Axial feed is imparted to the bar 6 by a lever 19 engaging an annular recess in the bar at one end and carrying a half-nut 23 on the other end. The half-nut, which engages the screw 7 rotated through a gear-wheel 25 from the bush 8, is carried by a spring-box 22 and may be withdrawn or advanced by a screw 24 and locked by a screw 26. The lever 19 slides on a guide-rod 20 which is provided with adjustable collars 27 to act as gauging stops, and has a handle 47 for effecting rapid withdrawal of the boring-bar when the feed-nut is disengaged. A disc 28 which may be secured in any axial position on the boring-bar carries a radially-adjustable cutter 29 for facing and radiusing a bearing. Work-holders; jigs.-Two vertical channel-bars 31 are attached to one of the bearings 4 and carry a bridge 32 rotatably supporting a screwed spindle 33. A nut 34 engaging the spindle and slidable between the bars carries a shaft 36 having screwed sleeves 37 thereon, the sleeves being provided with adjustable cones 38 for engaging one end of a connecting-rod. Two scales are provided on the vertical bars, one being graduated in inches and the other in metric units, for facilitating adjustment of the connecting-rod. The lower end of the rod is secured between pins 42 screwing through blocks 40 vertically adjustable by screws 41 in brackets 39 which are adjustable along the bed 1. For boring main-bearings, the brackets 39 are removed and replaced by a bracket 43, Fig. 6, in which is mounted a split brass or gun-metal liner 44 containing a split bush 45 of Babbit or similar metal. In operation, the bush 45 is bored to the external diameter of the main-bearing while packing 46 is inserted between the halves of the bracket 43, after which the packing is removed and the bearing may be clamped in exact alignment with the boring-bar.
Patent GB-737002-A (GB)
Title: Improvements in or relating to high expansion austenitic steels
Inventor: FRITH PERCY HERBERT
IPC: C22C38/58
Filed: 1952-10-27
Abstract: A high expansion austenitic steel contains 0.3-0.7 per cent C, 5-20 per cent Ni, 3-10 per cent Mn, 9-12.5 per cent Cr and one or more carbide-forming elements V, W, Mo, Ti, Nb and Ta in a total proportion by weight of 0.4-1 per cent, the remainder being Fe.  When the above elements are within the following narrower ranges 0-3.0 per cent Cu may also be present; C 0.4-0.6, Si up to 1.2, Mn 4-7, Ni 11-14 and carbide formers 0.5-1, all expressed as per cent by weight. An article made of this steel may be heated at 600-775 DEG  C. for 1-20 hours.  When the article is made, at least in part, by a hot-working process the above heat-treatment may be preceded by rapidly cooling the article from between 1000-1250 DEG  C., when hot-working is completed in this temperature range, to between 550-600 DEG  C. and then quenching to room temperature in a liquid such as oil or a blast of gas. Alternatively the hot-worked article may be reheated to between 1000-1250 DEG  C. for the application of the heat treatment.  Heat treatment may be followed by machining and nitrogen-hardening.  A part of the nitrogen-hardened skin may be removed by further machining and this is followed by further nitrogen-hardening.
Patent GB-602526-A (GB)
Title: Improved method and apparatus for the drying of materials
IPC: B05D3/02
Filed: 1945-10-16
Abstract: 602,526. Drying materials or articles. SPOONER, W. W. Oct. 16,1945, No. 27015. [Classes 34(i) and 34(ii)] Material in long lengths, or articles on a conveyer 1, are heated by radiation from plates 2, 3 which are heated by hot gases impinging thereon from nozzles 4, 5, with high kinetic energy. The groups of nozzles 4, 5, are formed in one wall of pressure chambers 6, 7 receiving hot air circulated by a fan over a heating element 9 which may be a steam, electric or other form of heater.
Patent GB-971593-A (GB)
Title: Process for the preparation of mercaptans
IPC: B01J27/04
Filed: 1961-07-26
Abstract: Mercaptans are prepared from oxygen containing organic compounds which are acids, alcohols, esters, ethers, aldehydes and ketones, by reaction with sulphur and hydrogen or a sulphur donor if necessary in the presence of hydrogen, using rhenium heptasulphide as catalyst. The reaction is preferably carried out under pressure with an excess of sulphur and hydrogen at a temperature of 200 to 300 DEG C. With acids the preferred temperature is 250 to 270 DEG C. and with alcohols 200 to 240 DEG C.  The sulphur donor may be hydrogen sulphide, carbon disulphide, calcium sulphide or ammonium sulphide. Examples describe the preparation of mercaptans from caproic, caprylic, capric, lauric, myristic, palmitic, stearic, oleic and adipic acids, ethanol, heptanol, octanol, a -methylbutyraldehyde and methylisobutylketone. The 2.4 dinitro (alkylthio) benzene derivatives are prepared by reaction of the mercaptan with 2,4-dinitrochlorobenzene, and the alkyl (2,4-dinitrophenyl) sulphone derivatives are prepared by oxidation of the product. Specification 574,936 is referred to.
Patent GB-463949-A (GB)
Title: Process for the manufacture of silica bricks and the like
IPC: C04B35/14
Filed: 1935-10-03
Abstract: Silica paste to be moulded into bricks contains also caustic lime, water-soluble caustic alkali, preferably caustic soda, and iron oxide or magnesium oxide to promote the conversion of quartz into tridymite.  The Specification as open to inspection under Sect. 91 comprises also the example 93 per cent ground quartzite, 1 per cent sulphite pulp lye, 3 per cent sodium lye containing 33 per cent NaOH, 2 per cent milk of lime, and 1 per cent iron oxide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-242636-A (GB)
Title: Improvements relating to high frequency telephony
IPC: H04B3/56
Filed: 1925-10-30
Abstract: 242,636. Telefunken Ges. f³r Drahtlose Telegraphie. Nov. 5, 1924, [Convention date]. Diplex signalling; undesired signals, eliminating; wired wireless systems; filter, rejector, and separator circuits.-A high-frequency telephonic receiver circuit E, Fig. 2, and transmitter S are coupled to the earthed shunt J which is connected through a condenser C to an aerial or a power wire or like conductor H. In order that for oscillations of the receiver frequency there mav be high impedance between the points a, b, while for the transmitter and all other frequencies the primary coil T1 mav be short-circuited, there is provided a shunt coil P which has few turns and is coupled to a circuit K tuned to the receiver frequency. This arrangement is contrasted with the known arrangement shown in Fig. 1, in which the rejector circuit K is tuned to the receiver frequency while the inductance L is so adjusted that the system as a whole resonates to the transmitter frequency. If it should be necessary to increase the number of turns in the winding P, compensation can be effected by adjusting the coupling so as to transfer effective capacity from the coupled circuit K.
Patent GB-869402-A (GB)
Title: Wide-temperature range greases
IPC: C10M169/00
Filed: 1959-08-11
Abstract: A grease composition, suitable for use over a wide temperature range, comprises (1) a major proportion of a synthetic lubricant and minor proportions of (2) a grease-forming agent and (3) an agent for reducing extreme thixotropy in the composition.  The synthetic lubricant (1) is an aliphatic diester, an aliphatic polyester or a silicate ester.  The greaseforming agent (2) comprises a colloidal dispersion formed from calcium carbonate and a polycarboxylic acid (chosen from the following list) in the presence of a metal sulphonate, the amount of the polycarboxylic acid employed being equivalent to 37-85% of that theoretically required for neutralization of the calcium carbonate, so that the dispersion contains both calcium carbonate and the reaction product thereof with the polycarboxylic acid.  The listed polycarboxylic acids are 3-methylglutaric, itaconic, pyromellitic, 2-methyladipic, 3-tert.butyladipic, 3-tert.amyladipic, octyladipic, mercaptosuccinic, 2,2-dibromosuccinic, 5-methyl-4-cyclohexene-1,2-dicarboxylic, (m-phenylenedioxy)diacetic, benzylmalonic, terephthalic and thiodiglycollic acids.  Ingredient (3) is chosen from alkyl methacrylate copolymers of 15,000-40,000 molecular weight, phenyl-substituted polymethyl siloxanes, polymethyl siloxanes, chlorinated polysiloxanes and polymethylethyl siloxanes.  The grease-forming agent (2) may be prepared by forming a colloidal dispersion of calcium carbonate in calcium sulphonate (for example by blowing CO2 through a solution containing calcium hydrosulphide, alcohol, benzene and sulphonic acid, according to the method of Specification 836,856) and reacting therewith an appropriate amount of the polycarboxylic acid.  The sulphonate employed may be a mahogany sulphonate, an alkyl benzene sulphonate or an alkyl naphthalene sulphonate.  In the examples, the synthetic lubricant (1) employed is di(2-ethylhexyl) azelate, but other dialkyl azelates, adipates and sebacates are mentioned, as well as pentaerythritol tetracaproate and hexa(2-ethyl-butoxy or 2-ethyl-hexoxy) disiloxane.
Patent GB-275052-A (GB)
Title: Improvements in liquid fuel burners
IPC: F23D11/10
Filed: 1926-11-02
Abstract: 275,052. Marks, E. C. R., (Williams Oil- O-Matic Heating Corporation). Nov. 2, 1926. Spray burners.-In a spray burner oil supplied through a pipe 22 to the rear end of a housing 10 passes by gravity through a valve 18 and a tube 29 into a cup 28<a> and then with air supplied by a pipe 21 through a pipe 23 to a nozzle 24 which contains a spring-pressed spiral block 27. Air supplied by the pipe 21 also passes around the pipe 23 and issues around the nozzle 24 through the curved tubular ducts 46 which are supported so as to project into the tapered outlet 12 of the casing by a plate member 37. The tube 23 is supported so as to be axially adjustable at its front end by the plate member 37 and at its rear end by a threaded rod 41 which is attached to the cup 28<a> either rigidly or by means of a forked bracket member 39. A spring 44 and a setscrew 43 maintain the rod 41 in its adjusted position in a casting 14 forming the rear of the housing. The casting 14 is preferably formed with a concave face 16.
Patent GB-994518-A (GB)
Title: Improvements relating to shavers
Inventor: SANDERS NORMAN THOMAS
IPC: B26B19/14
Filed: 1962-07-18
Abstract: 994,518. Dry shavers. NEEDLE INDUSTRIES Ltd. July 17, 1963 [July 18, 1962], No. 27519/62. Addition to 984,791. Heading B4B. [Also in Divisions B3 and F2] In a shaver having an apertured guard member 14 against which is urged a cutter member 13 having one or more blade elements 18 in the form of concave shells metal is removed from the outer face 21, Fig. 2, of each shell in the locality of the contact face 22 as indicated at 27. The amount of metal removed is preferably such as to reduce the radial width of the face 22 to less than one-third of what it would otherwise be. The carrier member 19 for the blade elements is formed with raised portions 31 and each blade element is secured to the member 19 by means of a rivet the upper portion 34 of the shank of which passes through a hole 33 in the blade element. The lower portion 35 of the rivet shank is deformed to form a head 38 which holds the rivet against movement relative to the member 19 while still allowing freedom for the blade element to have limited floating and rocking movements. The arrangement for securing the blade element to the carrier member is stated to prevent hair and skin particles from clogging the joint between the carrier member and blade element. Specifications 984,792 and 991,162 also are referred to.