baber/WOPTO huggingface dataset:
Patent GB-600409-A (GB)
Title: Electric condensers
IPC: H01G4/30
Filed: 1944-11-29
Abstract: 600,409. Condensers. IMPERIAL CHEMICAL INDUSTRIES, Ltd. (Du Pont de Nemours & Co., E. I.). Nov. 29, 1944, No. 23786. [Class 37] Alternate layers of powdered silver 8 and of powdered vitreous dielectric material 9 are applied, preferably as suspensions in a liquid organic vehicle, to a glass or ceramic base 7, each layer of silver and of dielectric being fired on to the underlying structure before applying the next layer. The base 7 may be a sheet, block, tube or rod of glass, porcelain or steatite and the firing operation preferably lasts 15 minutes at 575‹ C. The liquid vehicle suitably comprises a turpentine or pine oil base incorporating a binder such as ethyl cellulose or hydrogenated. resin. The silver may be applied in the form of a paste by the squeegee stencil process, and the vitreous enamel may be applied by spraying. Examples of suitable vitreous compositions are those given in Specification 596,792, [Group XXIII]. An outer casing 11 of wax or lacquer prevents adsorption or absorption of moisture. Specification 574,574 also is referred to.
Patent GB-731040-A (GB)
Title: Improvements in or relating to rake wheels for side delivery rakes and the like
IPC: A01D80/00
Filed: 1953-08-28
Abstract: 731,040. Side-delivery rakes. VAN DER LELY N. V., C. Aug. 28, 1953 [Sept. 26, 1952], No. 23797/53. Class 6 (3). A rake-wheel, for a side-delivery rake of the type having a series of rake-wheels arranged in oblique echelon formation, has a series of resilient circumferential teeth 10f, 11f formed by spokes 10b, 11b, which radiate from a central hub 1, pass through a rim 13 where they bend almost tangentially to form cranked portions 10d, 11d, and then pass through a second rim 14 where they bend again through a right-angle to form the teeth of 10f, 11f, so that the teeth are individually rotatable under lateral deflection about the cranked portions 10d, 11d. The hub has a pair of axially spaced flanges 7, alternate spokes 10b, 11b being passed through holes 9 in one or other of the flanges and retained therein by locking collars. The inner rim is thus rigidly held but the outer rim can deflect laterally the cranked portions 10d permitting such movement. Specification 674,797 is referred to.
Patent GB-446617-A (GB)
Title: Improvements in the distillation of coal
IPC: C10B57/06
Filed: 1934-07-26
Abstract: 446,617. Materials for making coke. ROBERTS, A., 20, Reydon Avenue, Wanstead, and SMITH, C. W., Bush House, Aldwych, both in London, [Representatives of ROBERTS, A. A.], and HACKFORD, J. E., 150, Southampton Row, London. July 26, 1934, Nos. 23813 /35, 23814/35, 23815 /35, and 23816/35. Divided out of 446,412. [Class 55 (ii)] A mixture of bituminous coal and up to 2 per cent by weight of a salt of a non-oxidizing strong acid such as sodium chloride, potassium chloride, are coked in a retort to obtain an improved coke or semi-coke. A boron compound such as borax or boric acid, may be added to the mixture. The temperature of distillation depends on the coal being distilled. In an example, Durham coal with 1 per cent each of sodium chloride and borax was carbonized at a temperature of 1050‹ C. In a further example, a mixture of semi-anthracite and Welsh steam coal with 0À5 per cent each of sodium chloride and borax was carbonized at a temperature of 700‹ C. Specifications 446,412, and 446,616, are referred to. Reference has been directed by the Comptroller to Specification 14840/86, [Class 1].
Patent GB-532015-A (GB)
Title: Improvements in or relating to handles for hollow-ware
IPC: A47J45/08
Filed: 1939-08-18
Abstract: 532,015. Saucepan &c. handles. BANKS & DAVIS, Ltd., and DAVIS, F. H. Aug. 18, 1939, No. 23813. [Class 66] A saucepan &c. handle comprises a metal core 11 cranked at 12 to overlie a lug 15 projecting from the attachment plate 14, the overlapping parts being surrounded by a metal sleeve 21 supported by a collar 22. A tongue 13 at the end of the strip 11 is bent down and welded into a slot in the plate 14, tabs on the edge of the sleeve are bent over and welded at 24 to the upper edge of the plate, and the lower edge of the sleeve is welded at 25 to the opposite face. The welding metal may be ground away to give a smooth finish. The handle is completed by a moulded grip portion 26.
Patent GB-1097456-A (GB)
Title: Composite material and a method of manufacturing the material
Inventor: MORLEY JOHN GODFREY
IPC: F01D5/28
Filed: 1965-06-03
Abstract: 1,097,456. Making composite metal panels and turbine blades. ROLLS-ROYCE Ltd. May 18, 1966 [June 6, 1965], No. 23816/65. Heading B3A. [Also in Division F1] A method of making a composite metallic material comprises compacting together a plurality of relatively rigid metal tubes 14, each tube having a coating of relatively soft material 15 which comprises a matrix wherein the tubes are embedded. In a method of making turbine blades, aluminium coated steel tubes, Fig. 2 (not shown), are compacted to the required aerofoil section and a skin 16 of steel is applied in two sections to the leading and trailing surfaces of the blade. The skin 16 may be metallurgically bonded or, preferably, secured by a high temperature polymer. It may also be applied beyond the leading and trailing edge of the blade, as at 17, the surplus being subsequently removed to provide sharp edges. In an alternative form the composite material may comprise ceramic tubes embedded in a high temperature polymer matrix.
Patent GB-1042894-A (GB)
Title: 3-cyanopyrrolidines
IPC: C07D207/16
Filed: 1963-06-14
Abstract: Novel 3-cyanopyrrolidines of the formula <FORM:1042894/C2/1> wherein R is hydrogen or an alkyl, dialkyl-aminoalkyl, aralkyl, heterocyclic or alicylic radical and X is hydrogen or an aliphatic, aromatic or alicyclic radical, and salts thereof are prepared by reacting a compound of the formula <FORM:1042894/C2/2> (wherein "Hal" is a halogen atom) with an alkali metal cyanide in the presence of dimethyl sulphoxide and, if desired, further reacting the product in which R is hydrogen with an R-halide (in which R is other than hydrogen) in the presence of a solution of sodamide in ammonia.  The above 3-cyanopyrrolidines in which X is other than hydrogen may be hydrogenated to the corresponding 3-aminomethyl-pyrrolidines, converted to the corresponding diazo compounds with nitrous acid and hydrolysed to the corresponding 3-hydroxymethyl-pyrrolidines.  1 - Methyl - 3 - bromo - pyrrolidine, 1 - methyl-3-chloro -pyrrolidine and 1-ethyl-3-chloro-pyrrolidine are prepared by reacting 1-methyl- or 1 -ethyl-3-pyrrolidinol with phosphorus tribromide or trichloride as appropriate.  3-Chloropyrrolidine is prepared by catalytic hydrogenation of 1-benzyl-3-chloropyrrolidine.ALSO:Pharmaceutical and insecticidal compositions contain as cholinesterase inhibitors 3-cyanopyrrolidines of the formula:-  <FORM:1042894/A5-A6/1> wherein R is hydrogen or an alkyl, dialkylaminoalkyl, aralkyl, heterocyclic or alicyclic radical and X is hydrogen or an aliphatic, aromatic or alicyclic radical, or salts thereof.
Patent GB-1454746-A (GB)
Title: Cartons
IPC: B65D5/10
Filed: 1972-08-26
Abstract: 1454746 Cartons BOXFOLDIA Ltd 31 Oct 1973 [26 Aug 1972 31 Oct 1972] 23863/76 and 23864/76 Divided out of 1454745 Heading B8P The subject matter of this specification is as disclosed in connection with Figs. 1-7 of Specification 1,454,745 but the claims are directed to a carton having a locking tongue provided with a rupturable portion.
Patent GB-532174-A (GB)
Title: Method for the melting of hard metal alloys and carbides
IPC: C22C1/10
Filed: 1939-08-18
Abstract: 532,174. Electric induction furnaces. SONDHEIMER, A., and LEHMANN, H. L. Aug. 18, 1939, No. 23897. [Class 39 (iii)] Hard metal alloys and carbides are fused or sintered in a graphite crucible within a high frequency induction furnace. The crucible a contains a graphite filling b in which holes e are cut to receive the charge and to fit a compression plunger c. The powdered material is moulded with a liquid such as carbon tetrachloride, alcohol, or water, and the shapes, e.g. tool tips, are pressed or hammered before or during heating. The fusing may be done in vacuo, or in an atmosphere of inert gas. Specification 383,387 is referred to.
Patent GB-599458-A (GB)
Title: Improvements in or relating to winding mechanism for clocks
IPC: G04B3/04
Filed: 1945-09-17
Abstract: 599,458. Clocks. SMITH & SONS (ENGLAND), Ltd., S., and LENOIR, R. M. J. Sept. 17, 1945, No. 23993. [Class 139] [Also in Group XXV] The winding arbor of a clock is externally screw threaded at its outside end 18 so as to be engageable by a wing nut 12 comprising two plates welded or brazed face to face and shaped to provide a through-way which is screwthreaded. In order to prevent backward rotation of the winding arbor when the nut 12 is screwed off there is provided at the end of the arbor a slit 19 engageable by a screwdriver.
Patent GB-266400-A (GB)
Title: Improvements in vehicle door latches
IPC: E05B65/22
Filed: 1925-09-26
Abstract: 266,400. Simpson, E. G. Sept. 26, 1925. Latches, sliding.-A latch g for the door of a motor vehicle is operated by a handle p located at the hinged side of the door and connected to the latch by a link i so that an occupant of the rear seat can pull-to the door or operate the latch without rising. The handle is in the form of a pivoted loop on a spindle carrying the usual follower.
Patent GB-674312-A (GB)
Title: Improvements relating to electric suction cleaners and the like
IPC: B65H75/44
Filed: 1950-10-02
Abstract: 674,312. Spring-drums. HOOVER, Ltd. Oct. 2, 1950. [Oct. 11, 1949] No. 24051/50 Class 78 (ii). [Also in Groups XXIII, XXVIII and XXXV] In an electric suction cleaner or like domestic electric apparatus having an electric motor 20 supplied through a cable 23 wound on a reel 21, the motor stator is mounted in bearings 26, 27 so as to rotate about its axis with the reel and thus avoid the use of slip rings. The reel is formed on the outside of the fan casing, or alternatively it may be formed on the motor casing. The reaction torque on the motor stator together with a torsion spring 36 acts in a direction for winding in the cable. A ratchet and pawl locking mechanism 40 is provided for locking the reel whilst a cam disc 41 releases the pawl when the cable is pulled and immediately released. A "push-push" switch 48 is provided.
Patent GB-1136208-A (GB)
Title: Improved circuit arrangement for producing a d.c. output voltage of a desired polarity
IPC: G06G7/25
Filed: 1967-05-24
Abstract: 1,136,208. Non-linear circuits. LICENTIA PATENT - VERWALTUNGS G.m.b.H. 24 May, 1967 [25 May, 1966], No. 24195/67. Heading G4G. [Also in Division H3] A differential amplifier (shown as T 1 , T 2 ), for producing an output of one polarity irrespective of the polarity of the input voltage has one input E 1  connected through a resistor Ra to a common input terminal E and through a negative feedback resistor R c  to the amplifier output, the other input terminal being connected through a resistor Rb to the common terminal and through a switch T 4  to earth, the switch being operated in dependence upon the polarity of the input signal to the common terminal. When the input signal at E is negative a polarity detector K produces a + 12V output so that diodes D 1  and D 2  are cut-off. T 4  conducts and connects the base of T 2  to earth through a resistor R 0  biased through R 1  to offset the voltage drop across T 4 . The input signal accordingly passes through amplifier stages T 1  and T 3  with a phase reversal, the gain being made equal to 1 by the choice of feedback resistor R c . When the signal is positive the polarity detector K gives a zero output which cuts off T 4  so that the input signal passes also to T 2 . The design of the amplifier is such that the gain is still unity and of the output is same sense as before.
Patent GB-662738-A (GB)
Title: Improvements in or relating to cylinders of internal combustion engines
IPC: F02F1/10
Filed: 1948-09-15
Abstract: 662,738. Engine e cylinders. UNITED AUTOMOBILE SERVICES, Ltd., and TUFF, H. L. June 3, 1949 [Sept. 15, 1948], No. 24265/48. Class 122(i) [Also in Group XXVII] In a cylinder of an internalcombustion engine having a liner formed in two parts 13, 14 each made of a single layer of metal arranged in unsecured, end-to-end contiguity the part 13 being of short length and disposed in the top end of the cylinder, the part 13 is made of chromium iron or chromium steel, the chromium content being preferably between 10 and 30 per cent by weight. The length of the part 13 may be 20 to 30 per cent of the length of the liner, and the part 14 is of normal cast iron.
Patent GB-1056728-A (GB)
Title: Ball joint assemblies for use in transmission linkages
IPC: F16C11/06
Filed: 1965-06-09
Abstract: 1,056,728. Ball and socket joints. TRICO PRODUCTS CORPORATION. June 9, 1965 [June 10, 1964], No. 24417/65. Heading E2F. A ball joint comprising a ball 40 held between socket plates 30, 32 has a depression 48 in a linkage member to which the plates are secured, the depression containing a biasing member 51 which prevents excessive looseness or tightness in the joint. The member 51 may be of rubber or neoprene or could be a coil spring and the socket plates may be of phosphor bronze. The plate 30 may be only half as thick as plate 32 to increase its resilience. In a modification, holes may be drilled around the depression 34 in plate 30 to increase the resiliency of the plate.
Patent GB-710889-A (GB)
Title: Improvements in or relating to electrical networks
IPC: G05D23/22
Filed: 1951-10-19
Abstract: 710,889. Potentiometers. BRISTOL CO. Oct. 19, 1951, [Nov. 16, 1950.] No. 24428/51. Class 37. [Also in Group XXXVIII] A self-adjusting potentiometer is fed from a potential divider which is supplied from a constant-voltage source and adjusted to give an output voltage equal to that of a standard cell which is left connected during operation of the potentiometer to compensate for minor variations in the source. In a system for measuring the voltage of a thermocouple 36, the rectified output of a regulating transformer 10, Fig. 1, supplies a voltage divider comprising three resistors 17, 18, 19, the first being adjustable so that the potential across the resistors 18, 19 is equal to that of a standard cell 45. Connected across 18, 19 are three resistance units 22, 23, 24 across the intermediate unit 23 of which is shunted the potentiometer slide-wire 25. The voltage of the thermo-junction 36 together with that of a reversely-arranged thermo-junction 39 in thermal relationship with the copper resistor 19 to compensate for changes in ambient temperature of the cold junction, is automatically balanced by the potentiometer 26 which is driven in the usual way by a two-phase induction motor 30. A relay 42 energized concurrently with the potentiometer network disconnects the standard cell 45 when the apparatus is out of use or if the source fails to prevent current drain. Preliminary checking of the slide-wire potential is effected by depressing the switch 50 so as to connect the amplifier 35 across the resistor 46. The resistor 17 is then adjusted until there is zero voltage across the resistor 46. In a modification, Fig. 2, the regulated power supply 59 is constituted by a transformer 60, rectifier 63, capacitor 65, resistors 76, 77, 67, 72, 73, and a gaseous discharge regulator tube or other non-linear resistor 68. A relay  75  which disconnects the standard cell 45 not only on failure of the power supply but also if the regulating tube 68 should fail to ignite or otherwise fail to function, also short-circuits the potentiometer so that the slide-wire contact tends to assume the safe position at the upper extremity of the scale. Instead of a discharge tube 68, a ballast tube having a high positive resistance characteristic may be employed, or both may be used. Specification 703,772, [Group XXXV], is referred to.
Patent GB-960266-A (GB)
Title: Polyphase alloys
IPC: C30B21/04
Filed: 1961-07-06
Abstract: 960,266. Zone-melting alloys. UNITED AIRCRAFT CORPORATION. July 6, 1961 [Sept. 30, 1960], No. 24452/61. Heading B1S. An alloy having an elongated grain structure comprising plates (Fig. 9a) or rods of eutectic composition is produced by passing the alloy in a graphite crucible 6, Fig. 8, downwards through a silica tube 2 having an induction heating coil 4 and a cooler 22 such that the ratio (G/R) of the thermal gradient at the crystallization front to the solidification rate is 0À1-1000 ‹C./cm<SP>2</SP>./hr. The upper surface of the alloy is protected by an inert gas fed through a tube 14 and the temperature is measured by a thermocouple 10. The grains may be 0À02- 10 microns thick. The longitudinal direction of the grains may deviate from the direction of passage by up to 30 degrees. A number of alloys are specified. If the alloy is of overall non-eutectic composition, the product contains interspersed large crystals. In the example, the thermal gradient is 172 ‹C./ cm. and the rate of solidification is 6À7 cm./hr. (giving a G/R of 25À6).
Patent GB-208213-A (GB)
Title: Improvements in and relating to appliances for drawing, sketching and like purposes
IPC: B43L13/14
Filed: 1922-09-11
Abstract: 208,213. Roberts, W. C., and Whitewick, T. L. Sept. 11, 1922. Drawing or sketching appliances; drawing, teaching.-A drawing or sketching appliance mainly intended for teaching model and like drawing comprises a box a or the like adapted to contain models, on the lid of which is mounted a detachable member e to form a material ground-line, in combination with which is used a sighting-device of known type comprising a movable post f carrying one or more angularly-adjustable arms g<2>. The ground-line has a pivot pin to engage holes or slots in the box lid to permit of adjustment, and may be in two parts hinged together. A model c is placed on the box with its nearest point in contact with the ground-line, and a corresponding line is drawn on the paper. The apparent lengths and angles of the model are then determined by means of the sighting-device, which slides in a groove in the ground-line. A vertical plane_or planes l of wood, glass, celluloid, &c. are supported in grooved posts m having pins to engage holes in the box lid. Projections of the model may be drawn on a sheet of paper bent at right-angles and secured by clips to the vertical plane. The sighting-arm may have a pen, pencil, or pricker for marking on the vertical plane. The box may have means for attachment to a desk or other support, and may be replaced by a drawer sliding within a casing or the like.
Patent GB-696176-A (GB)
Title: Improvements in or relating to a bust form
IPC: A41C3/10
Filed: 1951-10-23
Abstract: 696,176. Artificial breasts. BERNHARDT, E. H. Oct. 23, 1951 [Oct. 27, 1950], No. 24703/51. Class 141. [Also in Group VI] An artificial breast comprises a flexible liquid-retaining cell 14 having a liquid filler 23 therein, a flexible envelope 19 enclosing said cell and a quantity of liquid absorbent material 25 between the envelope and the cell, the absorbent material comprising a substance which, when mixed with the filler, forms a sealing agent for punctures in the cell. The filler 23 may include an agent producing foam 24 to reduce sound and may comprise an aqueous solution of methylcellulose. The absorbent material 25 may comprise powdered methytcellulose or sodium carboxymethylcellulose. The structure may be retained in the cup 12 of a brassiÞre by a pocketlike retainer 15 and a flap 16. Specification 662,482 is referred to.
Patent GB-1377913-A (GB)
Title: Clothes dryer
IPC: D06F57/04
Filed: 1973-05-23
Abstract: 1377913 Clothes dryers HILLS INDUSTRIES Ltd 23 May 1973 [23 May 1972] 24703/73 Heading A4U A clothes dryer comprises a standard 12, a boss 23 slidable along the standard, arms 30 pivoted to and extending radially from the boss and supporting clothes lines 32, upper and lowerpulleys 19, 14 on the standard and cords 15 extending round the pulleys and acting on the boss whereby the boss can be moved along the standard to extend or retract the arms. The standard 12 is of square-tubing and it is engaged in a base socket 10 normally set in concrete. The arms 30 are pivoted on a ring 28 surrounding the boss 23 and are connected by links 31 to the bearing ring of an upper boss 22 similar to the boss 23. Each boss comprises inter-engaging segmented slipper portions, Figs. 3, 6, 7 and 8 (not shown), and is formed with a circular groove rotatably supporting the ring 28, and each has a pivoted pawl 42, 49, the upper pawl 42 being selectively engageable in upper or lower laterally spaced holes 44 in the standard, and the lower pawl 49 being a single pawl so as not to engage the holes 44. The upper boss 22 has a depending member 46 with holes 47 for selective engagement with a pin (40) of the lower boss 23. In operation, therefore, the cords 15 are used to extend or retract the arms or for raising or lowering the upper and lower bosses together.
Patent GB-843326-A (GB)
Title: Improvements in or relating to pole pieces for dynamo-electric machines and their manufacture
IPC: H02K1/14
Filed: 1958-08-01
Abstract: 843,326. Making dynamo-electric machines. GENERAL MOTORS CORPORATION. Aug. 1, 1958 [Aug. 20, 1957], No. 24836/58. Class 83 (2). [Also in Group XXXV] A fabricated pole piece for dynamo-electric machines comprises a strip of ferromagnetic sheet metal bent by suitable dies in zig-zag fashion to form the body 24 and outwardly turned pole shoes 26, 27, a coining operation producing the final shape shown. The strip may be initially slotted and slit (Fig. 1, not shown) so that when it is folded up two pairs of securing tangs 25 remain outstanding. Alternatively, the pole may be formed about a second strip (50, Fig. 6, not shown) having a single securing tongue, the second strip acting as a die during bending. The tangs or tongue of the pole may serve to secure the ends of a single sheet of steel bent to form the motor frame (Fig. 5, not shown).
Patent GB-1478255-A (GB)
Title: Pile drivers
IPC: E02D13/10
Filed: 1975-06-10
Abstract: 1478255 Pile driving heads; removing dollies VAN KOOTEN BV 10 June 1975 [26 June 1974] 24874/75 Heading E1H A packing is located in a circular recess in the top of a pile driving head (not shown) and is withdrawn for replacement by another by means of an insert embedded in the packing and having fastening means for cooperation with an extraction device. In one embodiment (Figure 4) three adjacent wooden cubes each contain an embedded sleeve 17 and foot plate 27 and the sleeve 17 is internally threaded to cooperate with a rod 39 of an extraction, hydraulic jack 41. In an alternative embodiment (not shown), a channel member extends diametrally across the underside of a packing formed from a plurality  of wooden elements and three internally threaded sleeves are located on its web for cooperation with the rod 39 of the jack 41 which extracts the channel member. The channel member is covered by a rubber cushion which extends around the three sleeves and is a constituent element of the packing.
Patent GB-1449940-A (GB)
Title: Labelling adhesives
IPC: C08L3/02
Filed: 1974-06-05
Abstract: 1449940 Starch based adhesive compositions BORDEN Inc 5 June 1974 [5 June 1973] 24880/74 Headings C3U and C3P An adhesive for attaching labels to glass bottles comprises at least 40% by weight water 10-40% starch, 5-20% urea and/or dicyandiamide or mixtures thereof and an ammoniated hydrolysis product of a styrene/ maleic anhydride copolymer in an amount corresponding to 0À6-33 parts by weight of styrene/maleic anhydride copolymer for each 100 parts of combined weight of starch, urea and or dicyandiamide, with sufficient ammonia to effect a pH in the adhesive of 7À5-9À2.