baber/WOPTO huggingface dataset:
Patent GB-955071-A (GB)
Title: Improvements in or relating to stripline transmission devices
Inventor: FOSTER KENNETH
IPC: H01P3/08
Filed: 1959-01-12
Abstract: 955,071. Microwave filters. A. C. COSSOR Ltd. Jan. 5, 1960 [Jan. 12, 1959], No. 1048/59. Heading H1W. A strip-line transmission device, Figs. 1 and 2, comprises two earth planes 10, 11 spaced apart and between them a solid insulating sheet 12 having on each side thereof an input strip 15, an output strip 16 and between them a series of conducting strips 17, 19, 18 arranged parallel to one another, the input and output strips 15, 16 being conductively connected to the outermost transverse strips 17, 18, adjacent transverse strips being conductively unconnected with one another at least along the line joining the centre lines of the strips 15, 16, and the arrangement being such that owing to the capacitive and inductive coupling between adjacent strips, the device exhibits band-pass characteristics. The insulating sheet 12 can be a laminate of fibre glass bonded with silicone resin. The strips can be of copper and applied to the insulating sheet by a printing process. The ends of the input and output strips 15, 16 taper towards the transverse strips 17, 18. At least some of the transverse strips can be wholly unconnected conductively. The ends of at least one of the transverse strips can be connected conductively to the adjacent earth plane. In the construction shown in Fig. 3 one end of one of the transverse strips 19<SP>1</SP> is conductively connected at 22 to the adjacent end of the transverse strip on one side thereof and the other end to the adjacent end of the transverse strip on the other side thereof. A specific device is described which has a pass band between 5.5 and 6.5 kmc/s. cut-off between 6.5 and 9.0 kmc/s. and a second pass band between 9.0 and 11.0 kmc/s.
Patent GB-413012-A (GB)
Title: Improvements in and relating to the preservation of rubber
IPC: C08K5/13
Filed: 1933-01-12
Abstract: 4 : 4<1> - Dihydroxy - 3 : 3<1> - dimethyldiphenylmethane is prepared by condensing 1 : 3 : 2-xylenol with formaldehyde in the presence of caustic soda. b  : b  - Bis (4 - hydroxy - 3 : 5 - dimethyl-phenyl)-propane is prepared by condensing 1 : 3 : 2-xylenol with acetone in the presence of concentrated hydrochloric acid. These compounds are used as anti-agers for rubber.ALSO:The ageing of rubber is retarded without causing any deterioration in the colour of the vulcanisate by the addition to the mix of a bis (hydroxyphenyl) methane substituted in at least two positions, one ortho to each hydroxyl group, such substituents being preferably methyl groups. One or both of the methylene hydrogen atoms may also be substituted, such as for example by the same or different straight chain hydrocarbon residues. Compounds mentioned are 4 : 41-dihydroxy-3 : 31-dimethyldiphenyl-methane.  4 : 41-dihydroxy - 3 : 31 : 5 : 51 - tetramethyl - diphenyl methane, prepared by condensing two molecules of 1 : 3 : 2 - xylenol with formaldehyde in the presence of caustic soda.  b  : b  bis (4 - hydroxy-3 : 5-dimethylphenyl) propane.  b  : b  bis (4-hydroxy - 3 : 5 - dimethylphenyl) propane, prepared by condensing 1 : 3 : 2 xylenol with acetone in the presence of concentrated hydrochloric acid.  Specifications 344,491, 355,425, and 376,818 are referred to.
Patent GB-717771-A (GB)
Title: Process for the production of polymers of halogeno ethenes
IPC: C08F14/06
Filed: 1952-01-15
Abstract: Polymers of vinyl chloride, trifluorochloroethene and trifluoroethene are produced by polymerization in bulk using irradiation with light, e.g. ultra violet light of 2,500 to 3,700  ngstrom Units, while cooling to below 40 DEG  C. and preferably between 20 DEG  and 30 DEG C.  The products have a higher softening point, are freer flowing and are more stable than those produced above 40 DEG  C.  Specifications 255,837, [Class 2 (iii)] 578,168 and 698,215 are referred to.
Patent GB-1330883-A (GB)
Title: Brazing jigs for supporting radiators to be brazed in furnaces
IPC: B23K1/00
Filed: 1971-01-11
Abstract: 1330883 Brazing SOC ANON DES USINES CHAUSSON 14 Sept 1970 [22 Sept 1969] 1194/73 Divided out of 1330881 Heading B3R The subject-matter of this Specification is identical with that of the Specification 1,330,881, but the claims are directed to the brazing jig.
Patent GB-767659-A (GB)
Title: Improvements in and relating to electric arc welding systems
Inventor: BERRY KENNETH
IPC: B23K9/073
Filed: 1954-01-15
Abstract: 767,659. Automatic control systems for welding arcs. ENGLISH ELECTRIC CO., Ltd. Jan. 14, 1955 [Jan. 15, 1954; March 24, 1954], Nos. 1243/54 and 8564/54. Class 38 (4). In order to maintain the current in a D.C. welding arc constant with changes in arc length, a saturable reactor in the A.C. supply to the arc rectifier has a D.C. control current directly proportional to the voltage between the welding electrodes. The arc 4 is supplied from a three-phase transformer 1 through load-windings 5 of the saturable reactor 1 and full-wave rectifiers 3. Before the arc is struck, the relatively high no-load voltage across the welding electrodes maintains the coil 10 of a voltage responsive relay sufficiently energized to keep its contact 9 open. When the arc is struck the drop in welding voltage sufficiently reduces the energization of coil 10 to allow contact 9 to close, and thus permit energization of the D.C. control windings 6 of the reactor in proportion to the arc voltage. A subsequent increase in arc length results in an increase in impedance and hence an increase in welding voltage provided the arc current is unchanged. The consequent decrease in reactor impedance produces a reduction in voltage drop across the reactor which compensates for the increased welding voltage. A decrease in arc length results in a similar compensation, so that the arc current is maintained substantially constant. If the arc is broken, the increase in voltage across the electrodes causes contact 9 to re-open, thereby de-energizing the control windings 6 of the reactor. In a modification (not shown), the relay is made currentresponsive by connecting its coil 10 across a circuit component carrying the arc current. The closed winding 7 of the reactor serves to reduce phase unbalance and harmonic content in voltages induced in control windings 6. A fan may be used to cool the reactor. A resistor 8 may be adjusted to vary the excitation of the control windings.
Patent GB-348593-A (GB)
Title: Process for the manufacture of plastic substances
IPC: C08G63/12
Filed: 1930-01-14
Abstract: Synthetic resins which may be used as ingredients of lacquers or of plastic compositions intended for the manufacture of American cloth, products similar to linoleum, and the like are obtained by condensing azelaic acid with glycerol.  The condensation may be carried out by heating or in the presence of condensing agents such as hydrochloric acid, and, if desired, solvents.  A portion of the glycerol may be replaced by other polyhydric or monohydric alcohols, for example, glycol or propyl alcohol, and other polybasic or monobasic acids, for example, succinic, phthalic, pelargonic, or salicylic acids may be substituted for part of the azelaic acid.  Examples are given in which the reaction is carried out by heating for 3 hours to 160-180 DEG  C.  The viscid primary condensation products may be hardened by heating for 24 hours at 110 DEG  C., or may be coated on fabrics, leather, metal, wood, &c., which are then impregnated or coated therewith by a similar heat treatment.  Specification 299,424, [Class 95, Paints &c.], is referred to.
Patent GB-285896-A (GB)
IPC: B21B19/14
Filed: 1928-01-16
Abstract: 285,896. Roeckner, M. Feb. 25, 1927, [Convention date]. Rolling annular bodies; skew-rolling.-A mill for rolling tubes from hollow metal blocks and having coacting internal and external rolls, e.g. as described in Specification 243,280, has the rolls A provided with extensions D which expand and smooth the tube after it has been worked in the pass A.
Patent GB-859275-A (GB)
Title: New metalliferous mono-azo-dyestuffs containing cyano groups and process for their manufacture
Filed: 1958-01-15
Abstract: The invention comprises chromium or cobalt complexes of dyes of formula R-N=N-R1, which are free from sulphonic and non-complex forming carboxylic acid groups, where R is a benzene residue containing at least one cyano group and, ortho to the azo link, a hydroxy or carboxyl group, and R1 is the residue of a coupling component bound to the azo group in a position vicinal to a hydroxy or amino group, which may be substituted, there being present less than one proportion of metal per mol proportion of dye.  The dyes are made by conventional processes of metallisation, diazotisation and coupling.  Metallisation may be effected in the presence of other metallisable dyes. Substituents which may be present in the diazo components are, apart from amino, cyano, hydroxy, carboxy and alkoxy groups, sulphone, sulphonamide, nitro, -CO- alkyl and acylamino-group and halogen atoms and alkyl, and alkoxy and -COCH3 groups. Representative of specified coupling components are 2- naphthylamine -6-sulphonamide, 2- b - oxyethyl- or -phenylamino-naphthalene, 3, 4- dimethyl- and 4- acetylaminophenols, 6- bromo- 2- naphthol, 1- ethanesulphonyl- and -acetylamino -7- naphthol, 7-naphtholcarbamic acid ethyl ester, 1- nbutyl-3- methyl -5- pyrazolone, 5- pyrazolone -3-carboxylic acid -N- butylamide, barbituric acid, 2, 4- dioxyquinoline, acetoacetic acid amide and N- dimethylamide and 6- oxyindazole.  The dyes colour plastic masses, resins, waxes and lacquers and may be used for dyeing or printing materials of synthetic superpoly-amides or urethanes and animal fibres such as silk, leather and wool Examples are provided of the preparation of the dyes and their use in dyeing wool and superpolyamides in a variety of colours.  Specification 637,404 is referred to.
Patent GB-943939-A (GB)
Title: Process for the polymerization of a conjugated diene
IPC: C08F36/04
Filed: 1962-01-15
Abstract: Polymers of conjugated dienes are made by polymerizing a diene in the presence of a catalyst that contains lithium and/or lithium compounds, at a temperature from 0 DEG C. to 100 DEG C. in an inert atmosphere, by adding the catalyst, "essentially continuously" to a mixture of the diene and solvent until the polymerization begins.  By the expression "essentially continuously" means that the catalyst is fed into the reactor as a continuous stream without interruption, or incrementally at short time intervals. The catalyst is an alkyl lithium compound, admixed if desired with lithium metal, a lithium amide or a transition metal halide. Exemplified catalysts are n-butyl, and sec-butyl lithium, and an equimolar mixture of lithium isopropoxide and amyl lithium.  The diene may be butadiene or isoprene.  The solvent may be isopentane, or a mixture of amylenes.
Patent GB-247536-A (GB)
IPC: B41F3/02
Filed: 1926-01-19
Abstract: 247,536. Soc. Anon. B. Sirven. Feb. 14, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Bed-reciprocating apparatus.-The bed 1 of a continuous-revolution cylinder printing-machine is reciprocated by a gear wheel 20, Fig. 4, which engages continuously a rack 21 on the bed, and is driven intermittently in opposite directions by means such as a pair of sector gears 14, 17 driven in opposite directions at equal speeds by spur gearing from a. common driving-shaft which is driven by a pulley. After the sector 17 has driven the bed to the right, Fig. 4, and has run out of gear with wheel 19 on the shaft of wheel 20, the wheel 20 is controlled by mechanism shown in Fig. 9 for reversing the bed and ensuring a constant stroke for the same. This mechanism consists of an oscillating forked bellcrank lever 32, the forked end 35 of which engages a pin 36 on the wheel 20 and completes the movement of wheel 20 after it has been freed from the action of sector 17. The lever 32 also starts the movement of wheel 20 in the reverse direction, and frees the pin 36 as the wheel 14 continues the reverse drive. The lever 32 is connected by a link 37 to a bell-crank 41 on a shaft 40 which is oscillated by a slider 42. The slider 42 is reciprocated by a double cam 46 formed with a raised portion 46<1> coacting with a pin 43 on the slider, and with a depression 47<1> coacting with a pin 44 on the slider.
Patent GB-1036003-A (GB)
Title: Method of making cast plastic laminates and cast plastic articles of manufacture
IPC: B29C70/58
Filed: 1963-01-14
Abstract: 1,036,003. Multiple stage casting. S. R. BARNETTE. Jan. 14, 1963, No. 1526/63. Heading B5A. A moulded layered sheet is produced from a liquid resin by a multiple-stage casting process in an open or closed mould. Each stage comprises pouring, curing and setting and at the second or subsequent stage an insert or core is embedded in the layer. Particulate decorative material may be introduced into the second or subsequent layer. The insert may have a honeycomb structure. A heat-retaining metal foil may be located adjacent the base of the mould.
Patent GB-130362-A (GB)
Title: Improvements in the Separation of Oils and Pitch from Tar.
Inventor: LESSING RUDOLF
IPC: C10C1/18
Filed: 1918-01-28
Abstract: 130,362. Lessing, R. Jan. 28, 1918. Tar oils, extracting and purifying.-Tars and similar bodies are separated into oils and pitch by treatment with solvents which dissolve tar oils buo not pitch, at a temperature above that at which the pitch to be obtained melts. Preferably, the tar is first dehydrated, and the ammoniacal liquor, benzol, and naphtha are thus removed. The solvent is a petroleum distillate the bulk of which boils at a temperature above the melting- point of the pitch, e.g. a petroleum spirit boiling at 100-120‹ C. The apparatus consists of a vessel A in which the tar and solvent, admitted by pipes 1, 2, are mixed by a stirrer a at a temperature of 100‹ C. maintained by a steam-coil 9. The solution of tar oils overflows by a pipe 4 to a packed tower or column still B heated by close steam. The solvent vapours are led to a condenser D, and the recovered solvent is led back to the vessel A. The tar oils and pitch are removed through outlets 6, 11. A plunger 10 is used to clear the solvent-admission pipe 2. The operation may be continuous or intermittent. To purify the tar oils, the solution, on its way from the vessel A to the still B, is washed by a suitable liquid, an alkaline liquid being used to removo phenols &c., and an acid liquid to remove pyridine &c.
Patent GB-852190-A (GB)
Title: Improvements relating to covered belts and method for manufacturing same
IPC: B29D29/10
Filed: 1957-01-17
Abstract: 852,190. Laminates. DAYCO CORPORATION, [formerly DAYTON RUBBER CO.]. Jan. 17, 1957 [Jan. 23, 1956], No. 1738/57. Class 140. [Also in Group XXIV] A power transmission belt is made by continuously applying and bonding a cover layer of bias-cut cross-woven fabric to at least one surface of a pre-formed belt core of reinforced natural or synthetic elastomeric material whilst said surface is subjected to tensile stress by flexing successive portions of the core in a continuous manner, whereby the threads of the fabric cover layer intersect each other at an obtuse angle presented towards the longitudinal axis of the core when the belt is in its unstressed condition. As shown, the belt core 25 is mounted on two pulleys or sheaves 29, 30, similar to those on which the finished belt will operate, one of the pulleys being driven by means not shown. Fabric 24, cut on the bias, preferably after calendering rubber or a similar elastomer on to it, from feed roll 28a is pressed on to the core by the pulley or wheel 28 which is forced against the pulley 30 e.g. by spring loading. The surfaces at this point are tacky, which result may be obtained by suitable compounding of the elastomer. The cover 24 may be fed slightly faster than the peripheral speed of the core 25. When the core has been covered, it is vulcanized by heat and pressure, e.g. in a press or mould. The core may comprise a layer of textile cords, wire cables or the like embedded in a body of elastomeric material and may have fabric components incorporated in it also. A wide strip of cover fabric may be applied to the outermost surface of the core and wrapped around the other sides.
Patent GB-599846-A (GB)
Title: Improvements in or relating to firing metallurgical furnaces
IPC: F23D99/00
Filed: 1944-01-31
Abstract: 599,846. Gaseous-fuel furnaces. UNITED STEEL COS., Ltd., and RUSSELL, G. A. V. Jan. 31, 1944, No. 1766. [Class 51 (i)] In a metallurgical furnace, particularly but not exclusively of the open-hearth type, fired by gas from a producer the supply of gas to the furnace is boosted by a fan arranged in the gas supply conduit between the producer and furnace. The figure shows an open hearth furnace of the reversible regenerative type. Gas from the producer passes through conduits 31, 30 to a fan 29 driven by a motor 32 and is then supplied by way of the reversing valves to either end of the furnace. A by-pass pipe 33 may lead the gas direct to the furnace in the event of the fan ceasing to operate.
Patent GB-606777-A (GB)
Title: Improvements in or relating to clamping devices for chucks
IPC: B23B31/20
Filed: 1946-01-18
Abstract: 606,777. Chucks. PETERSEN, G. A., and DIETRICH, W. C. M. Jan. 18, 1946, No. 1815. Convention date, Oct. 13, 1942. [Class 83 (iii)] A clamping device for chucks comprises a looking bar 8 mounted in a spindle 1 on which a sleeve 17 is slidably mounted and adapted to insert, in an outward direction, a number of balls 16 between discs 11 and 13, which are respectively slidably and fixedly mounted on the sleeve, thus clamping them and operating the bevel-closing chuck 6. The bar 8 is connected to the disc 11 by pins 9 passing through slots 10 in the spindle. In the clamping movement, the balls 16, which are constrained between conical surfaces 12 and 15 of the discs 11 and 13, are forced outwards by the conical end surface 18 of the sleeve 17 which is moved backwards by a lever operating through slots 23 in the collar 22. A spring 19 may be provided to assist disengagement. The sleeve 17 may also be rotatable on the spindle 1 and may be hub-like or formed with a number of projections such as 25. The discs 11 and 13 may be mounted to allow a rocking movement and any number of balls, with a minimum of two, may be used. The inclined faces 12 and 15 may be formed on parts only of the circumferences of the discs 11 and 13.
Patent GB-238775-A (GB)
Title: Improvements in or relating to carriers for electric storage batteries or accumulators
IPC: H01M2/10
Filed: 1925-01-21
Abstract: 238,775. Winder, R. F., and Harrison, A. Jan. 21, 1925. Parcel and like carriers. - A carrier for a storage battery consists of a band a provided with a handle g and having loops c to receive a strap b.
Patent GB-451908-A (GB)
Title: Improvements in or relating to coin-freed vending machines
IPC: G07F11/54
Filed: 1936-01-20
Abstract: 451,908. Coin-freed article-delivery apparatus. SCHULTE, F., 75, Paulsbornerstrasse, Halensee, Berlin. Jan. 20, 1936, No. 1834. Convention date, Jan. 19, 1935. [Class 27] Articles stored in compartments of rotary drums.-Articles are arranged in compartments formed by radial walls d<1>, Figs. 2 and 3, in a series of trays d arranged one above another in several storeys surrounding a hollow column b freely rotatable in one direction only by a handle c', so that any article in any storey may be selected and brought opposite a door k, there being a door for each tray. The rotation of the container is controlled by a ratchet wheel e co-operating with a fixed pawl e<1>, the nose of which snaps into notches w<1> on the ratchet wheel to position the compartments accurately opposite the delivery openings closed by the doors k. Four pillars f, f<1>, f<11> extend upwardly from a pedestal a containing a cash drawer u, the pillars f having hinged thereto glass panels g which cover the open ends of the compartments and are secured by a flanged cover a<1>. The doors k are located between the pillars f<1>, f<11> which are of channel section and are connected by a series of channel section brackets i on which the doors slide. When a door is opened after insertion of coins, it slides behind a glass panel g<11>. Each door has pivoted thereto a pawl l which co-operates with a cam-shaped guide m<1> on the bracket i to cause the nose of the pawl to project into the path of a partition d<1>, thus causing an open door to be shut by the rotation of the container and also a compartment to be positioned in register with a delivery opening by the opening of a door. An ice container may be inserted in the hollow column b, or this column may be pierced so that the apparatus can be illuminated from the interior. Coin action, mechanical-connection and multiple-coin.-Coins z, Fig. 4, are inserted through a slot n in the door and drop down a shoot n<1> so that the first coin projects through the end wall p<1> of the door and the last is engaged by an abutment v. When the door is opened, after a small lost motion the first coin engages and rotatates a double-armed lever o<1> which would normally prevent the door from being opened. The number of coins required may be varied by filling pieces v<1>. The shoot n<1> is provided with testing mechanism, rejected coins being returned through a shoot n<11>. A spring-controlled lever is provided to ensure that the door is fully closed.
Patent GB-609510-A (GB)
Title: Improvements in, or relating to, overhead runways
IPC: B66C7/00
Filed: 1946-01-19
Abstract: 609,510. Elevated railway points; buffer stops. CHAIN DEVELOPMENTS, Ltd., and SMITH, W. Jan. 19, 1946, No. 1858. [Class 104 (ii)] Points for overhead runways with suspended vehicles such as hoists or cranes and consisting of a rail section 3 pivoted to the main track 1 and moving into alignment with either the branch or the main tracks 4, 2, have the free end of the point carried by a stud 18 passing through an arcuate slot 17 in the joint plate 12 and carrying a wheeled carriage 19 running on the plate. The rails are of H-section with the vehicle wheels running on the lower flange. Stops 14 on the plate 12 limit the movement of rail 3 which carries a spring-pressed ball or plunger engaging indents 15 in plates 13 secured below the rails 2, 4. Chains 23, 24 are connected to the carriage and pass through tubes 22 fixed by clips 21 to the plate 12 for manual operation of the points. Rail 3 carries arms 27, 28 with abutment ends 27<1>, 28<1> to prevent a vehicle running off an open rail.