baber/WOPTO huggingface dataset:
Patent GB-886569-A (GB)
Title: Improvements in artificial legs
Inventor: WAGGOTT JOHN BERRY
IPC: A61F2/68
Filed: 1959-12-16
Abstract: 886,569. Artificial knee Joints. VESSA Ltd. Dec. 15, 1960 [Dec. 16, 1959], No. 42864/59. Class 81 (2). A knee joint for an artificial leg has means by which, on returning to a straight position, the movement is free over the greater part of its range, but has a controlled resistance applied to it over a small angle before the straight position is reached. The control is effected hydraulically and the joint comprises a radial vane 8, mounted on an axle 4 and rotated within a cylindrical casing 1 by the shin member, the casing being attached to the thigh. The casing is filled with oil and, over the greater part of the movement of the vane 8, oil is free to pass around its outer end. Towards the end of its movement, however, the vane passes adjacent to an arcuate plate 14 which causes the oil to pass through orifices 15 and one-way valves 16, causing a slight resistance to the freedom of movement. Finally, over the last few degrees of straightening the knee, the orifices bear against and are closed by spring- loaded balls 17. The springs 19 permit displacement of the balls, and final straightening of the leg, but during this arc of movement the oil is forced through a duct 13 which is adjustably restricted by a needle valve. Specification 762,695 is referred to.
Patent GB-1182696-A (GB)
Title: Printing on Knitted Fabric
Inventor: MAUND RODERICK ALLAN
IPC: B41F17/38
Filed: 1967-09-22
Abstract: 1,182,696. Printing knitted socks. R. A. MAUND. 22 Sept., 1967, No. 43199/67. Heading B6C. A tubular knitted fabric in a flattened condition is printed on both sides with stripes as it passes downwardly between two pairs of spaced printing rollers 8 and 11. The rollers, which are mounted in horizontal slides under conditions of spring bias for impression adjustment purposes, are each constructed from a series of spaced discs 14 and rotate in ink baths 16. The fabric is kept in a flattened spread-out state during printing by a flat rectangular spreader framework 22 which is placed inside the tubular format of the fabric and extends from a point just below the fabric supply roll 7 to a pair of coacting support rollers 12 below the lower printing roller pair 11.
Patent GB-937066-A (GB)
Title: Improvements in machines for harvesting tall row crops
IPC: A01D45/10
Filed: 1959-12-21
Abstract: 937,066. Harvesting sugar-cane. MASSEY-FERGUSON (AUSTRALIA) Ltd. Dec. 21, 1959 [Jan. 7, 1959], No. 43252/59. Class 6(3). In a harvesting machine which has a vertical side wall with a rearwardly-sloping front edge 14A acting as a crop-divider the wall has a shoe 25 arranged floatingly in ground-contact near its forward end. The device is applied to the cane-harvester described in Specification 937,065 and the side wall is one of a pair which flank the crop-row and comprise a framework 14, 14A, 14C covered with metal sheeting. The shoe is suspended from the framework by parallel links 28 and is connected to a hydraulically-actuated lift-arm 115 by links 111, 112, 113 which include a lost-motion connection, permitting the floating. The lostmotion is provided by a swivel block 144 through which the link 111 passes and a spring 145 which surrounds the free end of the link. Specification 937,067 also is referred to.
Patent GB-1490853-A (GB)
Title: Panel heater
IPC: H05B3/22
Filed: 1974-10-08
Abstract: 1490853 Radiant space heaters NIPPON KINZOKU CO Ltd 8 Oct 1974 43470/74 Heading F4W [Also in Divisions H3-H5] A panel heater comprises a resistor 4, of metal foil perforated to give a network of current pathways, sandwiched between glass plates 9, 9 held together by tape 13 at the edges, the sandwich being supported in a frame 15, 16, 17 that exposes the heating resistor. The resistor is stamped from a metal sheet (e.g. stainless steel 0À06 mm thick) in stages, edges 5 being left on for strengthening during subsequent processing stages. The blank shown in Fig. 2 may be stamped free of edges 5 along lines AA or BB. If tabs are left, e.g. by stamping along BB, they may be stuck to the glass plates (Fig. 9, not shown) or turned over the edges of a glass plate (Figs. 6, 7, 8, 10, 11, not shown). Connector tabs 2 may have conductive plates attached (Figs. 7, 8, not shown) to reduce heating of these connectors. Reference has been directed by the Comptroller to Specification 1,437,139.
Patent GB-1369426-A (GB)
Title: Powered sweeper
IPC: E01H1/04
Filed: 1970-09-12
Abstract: 1369426 Rotary brushes SISIS EQUIPMENT (MACCLESFIELD) Ltd 10 Sept 1971 [12 Sept 1970] 43715/70 Heading A4K [Also in Division E1] In a power driven sweeper (Division E1), a brush assembly 20 rotatable about a horizontal axis has a plurality of angularly spaced brush carriers 20b each carrying a brush 20c inclined to the radius of the axle 20a in a direction such that the brush tips trail when the brush rotates in its operative direction.
Patent GB-991961-A (GB)
Title: Improvements relating to screws
Inventor: BREWSTER SYDNEY ARTHUR
IPC: F16B37/14
Filed: 1963-11-06
Abstract: 991,961. Covers for screws. BRITISH SCREW CO. Ltd. Nov. 6, 1963, No. 43748/63. Addition to 953,009. Heading F2H. To prevent the synthetic resin cover 18 from being pushed off the head 11 of the screw by overtightening, a screw similar to that of the parent Specification has a head 11 with a recess 14 and a sloping underpart 15 against which rests a reinforcing washer 17 partly embedded in the cover 18 and overlying the sealing skirt or washer 22 and extending below a portion 15a of the sloping underpart 15.
Patent GB-1473438-A (GB)
Title: Wet oxidation of organic matter
IPC: B01J10/00
Filed: 1975-10-24
Abstract: 1473438 Wet oxidation process BARBERCOLMAN CO 24 Oct 1975 [29 Oct 1974] 43826/75 Heading C 1C A process for wet oxidation of organic matter in solution or dispersion in an aqueous liquid in which the wet oxidation is carried out by introducing the aqueous liquid containing the organic matter into a reaction zone, wet oxidizing at elevated temperature and pressure during travel through the reaction zone by introducing oxygen-containing gas into the liquid in the reaction zone wherein heat released by exothermic oxidation effects conversion of liquid to vapour in the reaction zone, comprises continuously flowing liquid and vapour from the reaction zone, at the final stages of the reaction, into a disengaging zone for separating the liquid and vapour into a vapour phase and a liquid phase, and removing the separated vapour and liquid separately from the disengagement zone. An apparatus is also claimed. Sewage, or other organic matter, may be treated at, e.g. 446‹ F. and 600 p.s.i.g.
Patent GB-1325549-A (GB)
Title: Agricultural implement for the cultivation of soil
IPC: A01B19/06
Filed: 1970-09-15
Abstract: 1325549 Soil cultivating implement; tractor hitches H VISSERS NV 15 Sept 1970 [17 Sept 1969] 43941/70 Headings A1B and A1P A soil cultivating implement, in particular a harrow, comprises a tool frame 1, 2, 3 supporting transversely reciprocating harrow bars 11, driven off a tractor power take-off 13, and an auxiliary frame consisting of transverse bar 35 which can be attached to the tractor by bars 29, 30, the tool frame being able to swing with respect to the auxiliary frame about an axis, defined by pivot 37, extending in a central longitudinal plane and inclined forwardly at an angle b to the vertical. Any oscillatory movement of the tool frame caused by the reciprocating action will be reduced since any deflection of the implement to one side will cause the tool frame to rotate about the inclined pivot, penetrate more deeply into the soil on that side and be pushed back to its normal position by the corrective force of the soil. The inclined axis between the frames therefore helps to reduce oscillations and can have such an effect that the springs 38 Fig. 1 which normally do this are eliminated in one development of the implement.
Patent GB-1430754-A (GB)
Title: Conforming of shoe uppers to the shapes of appropriate lasts
IPC: A43D111/00
Filed: 1972-05-04
Abstract: 1430754 Boots &c BRITISH UNITED SHOE MACHINERY CO Ltd 3 May 1973 [4 May 1972] 43960/75 Divided out of 1430753 Heading A3B The subject matter of this Specification is identical with that described in Specification 1430753, but the claims are concerned with a side lasting machine including a shoe carrier movable from a loading position to a lasting position, the shoe carrier being automatically positioned in the lasting position by a stop member whose position is set in accordance with the size of shoe on the carrier as determined by a toe-engaging member moving into engagement with the toe-end of the shoe.
Patent GB-1363978-A (GB)
Title: Liquid tank provided with venting means
IPC: B60K15/03
Filed: 1972-09-25
Abstract: 1363978 Venting tanks AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 25 Sept 1972 [13 Dec 1971] 44159/72 Heading B8X A tank, e.g. petrol tank 1, includes a venting conduit 4, 11 which normally contains a liquid trap between points 6 and 6a. During filling, the tank is vented through filler pipe 2 until the liquid level in the tank rises above the lower end of pipe 2. On further filling the pressure in the upper part 1b of the tank rises and forces the liquid plug into a chamber 8 to clear the venting conduit 4, 11. The volume of chamber 8 is at least equal to the volume of the liquid plug. Because of a restriction 14, only a small amount of fuel enters chamber 8 via a pipe 13 during  filling. After filling is completed, the conduit 4 and the chamber 8 are full of liquid. The trap remains full, but the chamber 8 is progressively drained via conduit 13.
Patent GB-1579474-A (GB)
Title: Insulation member for an electrical appliance
IPC: H01H33/72
Filed: 1977-10-25
Abstract: Said solid insulating parts (2), which consist of a cured binder and at least one fibrous filler serving as a mechanical reinforcement, come into contact with arcs during operation in an electric appliance. In this appliance no fluorine compounds are found near the arc. The fibrous filler consists of a glass without compounds of alkaline earth metals and alkali metals, preferably of pure quartz glass which, in contrast to the glass of commercial glass fibres, remains electrically insulating up to very high temperatures and confers high mechanical strength upon the solid insulating part. <IMAGE>
Patent GB-876908-A (GB)
Title: Improvements in or relating to spacers for concrete
IPC: E04C5/18
Filed: 1959-12-31
Abstract: 876,908. Reinforced concrete. SCHWACHULA, 1., and SCHWACHULA, E., [trading as SCHWACHULA KOMM.-GES., INGEBORG.]. Dec. 31, 1959 [Jan. 10, 1959], No. 44410/59. Class 20(4) A spacer for supporting reinforcing rods of concrete comprises a pair of wire yokes each having members 3, 4 and 5, 6 respectively, spread apart to form feet, the yokes being disposed at right angles to one another and a straight connecting piece 11 between members 5, 6 of one yoke being welded at 12 beneath the middle of a saddle shaped connecting piece 10 between the members 3, 4 of the other yoke. The saddle shaped bend 13 serves to receive the reinforcement 14. A lower reinforcement 15 may be supported by an overhanging wire rod 16 welded between two preferably adjacent members 3, 5 of the yokes. The overhanging portions of the rod 16 may be bent downwards to form feet 21, 22.
Patent GB-1528599-A (GB)
Title: Magnetic record and/or reproduce head and manufacturing method
IPC: G11B5/255
Filed: 1975-10-28
Abstract: 1528599 Magnetic heads SPIN PHYSICS Inc 28 Oct 1975 [29 Oct 1974] 44428/75 Heading G5R A single-track video magnetic tape head has ferrite polepieces defining a transducing gap therebetween and two ceramic wear support pieces (22<SP>1</SP>), (22<SP>11</SP>), Fig. 2 (not shown), extending across the gap one at each side of the track, the ceramic pieces wearing slightly faster than the ferrite polepieces. Magnetic ferrite bars 10, 12 may be glass bonded together to define the transducing gap, or gap-defining material may be deposited by sputtering followed by glass bonding of the bars 10, 12. Slots 23 are then formed in bars 10, 12 and wear support pieces 22 located in the slots. The pieces 22 are preferably of a glass material which devitrifies into a ceramic material on heating the assembly of bars 10, 12 and pieces 22, such heating bonding the pieces 22 in slots 23. The assembly 14 is then contoured along line 30, polished and sliced at 32, 34 through the pieces 22 into individual single track heads the magnetic circuits of which are completed by rear parts of bars 10, 12, such rear parts being separated by a back gap (36), Fig. 2, wider than the track width 26.
Patent GB-1000938-A (GB)
Title: Improvements in the polishing of glass articles
IPC: C03C15/02
Filed: 1963-11-11
Abstract: To polish glass articles, they are immersed alternately in a polishing bath consisting of sulphuric acid containing hydrofluoric acid and in a salt-removing bath of sulphuric acid of concentration at least 66% and finally, when the required polish has been achieved, they are rinsed with water.  The polishing bath consists of sulphuric acid of concentration 50 to 60% containing 5 to 10% of hydrofluoric acid, the polishing bath being kept at a temperature between 40 DEG and 60 DEG  C. and the sulphuric acid bath above 60 DEG  C., the sulphuric acid bath being preferably 10 DEG  to 20 DEG  C. higher than that of the polishing bath.  The concentrations of the polishing bath is maintained by addition of highly concentrated hydrofluoric acid or fluosulphonic acid and that of the salt-removing bath by addition of oleum.  The fluorine compounds escaping from the hotter salt-removing bath are recovered and reconverted to the acid for return to the polishing bath.  One or more heavy metal salts such as iron chloride or sulphate or zinc, copper or silver sulphates, or potassium permanganate, chromic acid or hydrogen peroxide may be added to the polishing bath to give more intensive polishing action and the number of alternate dippings is thereby reduced.  Particular examples are given, the articles being swung in the polishing bath for 10 to 20 seconds and in the salt-removing bath for 3 to 5 seconds, the sequence being repeated for 10 to 18 treatments before the final rinsing in water.  Plated glasses with a thin colourless coating of glass is similarly treated.
Patent GB-1237324-A (GB)
Title: Improvements in or relating to an electrolytic demetallizing apparatus having electrolyte-pressure responsive load compensating means
IPC: B23H3/00
Filed: 1969-09-09
Abstract: 1,237,324. Electro-machining apparatus. ANOCUT ENG. CO. Sept. 9, 1969 [Sept. 24, 1968], No. 44539/ 69. Addition to 1, 219, 957. Heading C7B. The apparatus of the parent invention, in which relative movement between a hollow shaping cathode 201 and a metal workpiece 203 is controlled to maintain a predetermined gap 235, through which electrolyte flows under pressure, (e.g. via region 233 from inlets 231), using drive means with load compensating means for opposing the tendency to relative retraction between the cathode and workpiece produced by the electrolyte pressure, is modified in that the load compensating means comprises a cover 221 enclosing the cathode and workpiece and defining a sealed chamber 225 supplied with pressurized fluid e.g. via passage 246 to exert pressure behind the back surface 226 of the cathode, the cathode being movable with respect to the cover e.g. by being secured to the end of at least one push-rod 217 passing through an annular seal 247 in the cover. The electrolyte may be drained from the work-gap 235 through a plurality of outlet flow channels in the cathode comprising slots 236 (some leading to chambers 237 in cathode high areas 255), passing into horizontal channels 239 in the cathode's adapter plate 212, then into radial and vertical channels 241, 243 in push-rod 217, and out by exit ports 245. Alternatively, some of the electrolyte flow channels may act as inlets, others as outlets, with respect to the work area. The electrolyte flow may be blocked through the cathode low areas 257 until machining has proceeded to such a degree that these areas are close to the work-piece. Various insulating members of the apparatus, e.g. pad 253 covering underside of work-piece table 204, top of ram head 219, spacer 205, walk 207 and supports 223, are preferably made of epoxy resin - glass fibre composite.
Patent GB-1183152-A (GB)
Title: Foamable Synthetic Resins
IPC: C08F/
Filed: 1968-09-19
Abstract: 1,183,152. Foamable methacrylic acidmethacrylonitrile resins. ROHM & HAAS G.m.b.H. 19 Sept., 1968 [19 Sept., 1967], No. 44673/68. Addition to 1,045,229. Headings C3C and C3P. A foamable synthetic resin comprises (A) a copolymer of (1) methacrylic acid; (2) methacrylonitrile; and, if desired, (3) at least one further copolymerizable monomer the proportions of components (1), (2) and (3) being more than 60% and not greater than 90% by weight, from 10% to less than 40%, and less than 30%, respectively, of the total weight of monomers], (B) 5 to 20%, based on the weight of copolymer (A), of urea or N,N<SP>1</SP>-dimethyl urea and, if desired, (C) up to 10% of water based on the total weight of the resin. Components (B) and (C) are incorporated during formation of copolymer component (A). Other components e.g. silica aerogel, asbestos powder or a polymer soluble in the monomer mixture may also be present during formation of said copolymer. Specified comonomers (3) are (meth) acrylamide, acrylic acid, a (meth) acrylate ester, acrylonitrile, methyleneglutaronitrile, styrenes, vinyl esters and heterocyclic vinyl compounds e.g. vinyl carbazole, vinyl imidazole and vinyl pyrrolidone. In the examples copolymers are produced by heating in two stages a mixture comprising methacrylic acid, methacrylonitrile, polyvinyl butyral, urea, benzoyl peroxide and, additionally, water (Example 3) or methyl methacrylate (Example 4). The copolymers are foamed by heating.
Patent GB-985120-A (GB)
Title: Improvements in or relating to coat hangers
Inventor: LANDER TERTIUS GILBERT
IPC: A47G25/32
Filed: 1962-11-27
Abstract: 985,120. Garment hangers. T. E. LINNETT STARTIN Ltd. Feb. 27, 1964 [Nov. 27, 1962], No. 44724/62. Heading A4U. A coat hanger of plastic covered wire has each of the wire end portions bent into a hook 4 so that when the hanger is supported on a clothes line 10 the line is joggled and sliding along it is prevented. The hook shanks may be twisted together or clamped by a cleat 8. The hanger may have a trouser bar 2 and projections 3 to receive shoulder straps of a garment.
Patent GB-1321958-A (GB)
Title: Curing agent for epoxy resins
IPC: C08G59/42
Filed: 1971-09-28
Abstract: 1321958 Purifying a ring closure anhydride R T VANDERBILT CO Inc 28 Sept 1971 [8 Oct 1970] 45212/71 Heading C2C [Also in Division C3] A process for removing residual maleic anhydride from a ring closure anhydride prepared by a Diels-Alder addition reaction using maleic anhydride comprises treating the reaction product with an aminoalcohol of the formula wherein R<SP>1</SP> and R<SP>2</SP> are hydrogen, (C 1 -C 4 ) alkyl, hydroxy or hydroxyalkyl, at least one of R<SP>1</SP> and R<SP>2</SP> being other than hydrogen and R is hydrogen, hydroxy or (C 1 -C 4 ) alkyl, or of the formula wherein R<SP>1</SP> and R<SP>2</SP> are hydrogen, (C 1 -C 4 ) alkyl or hydroxyalkyl, R<SP>3</SP> and R<SP>4</SP> are hydrogen, (C 1 -C 4 ) alkyl, aminoalkyl or hydroxyalkyl and when R<SP>1</SP> and R<SP>2</SP> are both hydrogen then at least one of R<SP>3</SP> and R<SP>4</SP> is other than hydroxyethyl or hydrogen. The ring closure anhydride is suitably a mixture of isomers of 4-methyl-tetrahydrophthalic anhydride, and may be used as a curing agent for epoxy resins.
Patent GB-1203800-A (GB)
Title: Electro mechanical ceramic filter
IPC: H03H9/54
Filed: 1967-10-05
Abstract: 1,203,800. Electromechanical filters. MURATA MFG. CO., Ltd. 5 Oct., 1967 [13 Oct., 1966], No. 45362/67. Heading H3U. A bandpass filter comprises a disc 21 of electro-strictive ceramic material, e.g. barium titanate or lead zirconate titanate, provided on its opposite faces with pairs of electrodes 22, 24 and 23, 25 forming resonators 26, 27. The disc material between the electrode pairs is polarized in the direction P so that the resonators operate in the thickness expansion mode. The distance d between the resonators 26. 27 is made sufficiently small to ensure their mechanical coupling through the disc material. The external circuits A, B and C, Dare connected through leads 28, 29 and 30, 31 to the respective electrodes through terminals such as terminal 22<SP>1</SP>.
Patent GB-1097471-A (GB)
Title: Improvements in or relating to bag-filling apparatus
Inventor: HEYES CYRIL HENRY
IPC: B65B67/12
Filed: 1963-11-18
Abstract: 1,097,471. Bag filling machines. WESTON TRUCK & ENGINEERING CO. Ltd. Nov. 18, 1964 [Nov. 18, 1963], No. 45381/63. Heading B8C. A device for filling bags with flowable material e.g. coal, comprises a shoot having a bag-supporting device at its exit, the device being adjustable relative to the shoot to enable bags of various height to be supported with their bases on the ground. Inwardly directed flanges (Fig. 3, not shown) are provided on the bottom side edges of the device 22 to direct material centrally into the sack. Flow into the shoot 11 is controlled by an adjustable damper 12 and the shoot opened and closed by a secondary damper 15 operated by a pedal 18 or handle 20. A grill at 9 and shoot at 10 and 21 permit coal dust to separate out. The bag is hung from pins (not shown) on an arcuate device 22 adjustable vertically by wing nut and slot means 24-26. In operation, the damper 12 is set to permit the desired flow and the secondary damper 15 then opened, the member 22 having been adjusted to suit the bag height.
Patent GB-1046479-A (GB)
Title: A logic circuit employing semi-conductor devices
IPC: H03K3/33
Filed: 1963-11-19
Abstract: 1,046,479. Tunnel-diode switching circuits. SPERRY RAND CORPORATION. Nov. 19, 1963 [Nov. 29, 1962], No. 45628/63. Heading H3T. In a tunnel diode switching circuit, the application of a negative-level input signal at terminal 10 causes backward diode 12 to assume a low-resistance condition so that " set " pulses applied to the primary winding of transformer T1 are short-circuited at its secondary winding, while the application of an earth-level input signal at input terminal 10 causes the backward diode to assume a high-resistance condition so that the pulse induced in the secondary winding of transformer T1 is effective to switch tunnel diode 22 to its high-voltage state. The voltage source 28 and resistor 26 constitute a constantcurrent source biasing the tunnel diode to a bi-stable condition. During switching to the high-voltage state additional current is supplied via backward diode 30. The low-voltage state is restored by " Reset " pulses applied through diode 58. The output of the stage, taken from the anode of tunnel diode 22, is applied to a second similar stage.