baber/WOPTO huggingface dataset:
Patent GB-1234034-A (GB)
IPC: B29C48/03
Filed: 1967-08-31
Abstract: 1,234,034. Crosslinking polymers. MIDLAND SILICONES Ltd. 19 Sept., 1968 [31 Aug., 1967], No. 39846/67. Heading C3P. Organic polymers are crosslinked by mechanical working to induce the formation of free radical sites in the presence of at least one organosilicon compound containing at least one silicon-bonded hydrolysable atom or radical and at least one silicon-bonded atom or radical reactive with free radical sites, and exposing the polymer to moisture. The working may be supplemented by incorporating a free radical generator, e.g. an organic peroxide or azobisnitrile. Specified polymers are hydrocarbon and halogenated hydrocarbon polymers, polyacrylates, polysulphides, polyamides, polyesters, aminoplasts and epoxides. The silicon compound may contain halogen atoms or alkoxy, oximo, acyloxy or amino radicals; and olefinically unsaturated radicals. Unsaturated organic compounds, e.g. methyl methacrylate, ethyl acrylate and maleic anhydride, and silanol condensation catalysts, e.g. organic metal compounds, bases and acids, and polyfunctional silicon compounds such as tetraalkyl silicates, may also be present. Examples describe the crosslinking of compositions comprising dibutyl tin diacetate with (1) polyethylene and vinyltriethoxysilane, together with (2, 4 and 5) dicumyl peroxide and (3) benzoyl peroxide and tetraethyl orthosilicate; and comprising dibutyl tin diacetate and 8-methacryloxypropyl trimethoxysilane with (6) a polyacrylate, (7) polyvinyl chloride and methyl methacrylate and (8) ABS terpolymer and methyl methacrylate.
Patent GB-1234109-A (GB)
IPC: F16M11/04
Filed: 1968-06-07
Abstract: 1,234,109. Work supports. COMPAGNIE GENERALE ELECTRICITE. 7 June, 1968 [30 June, 1967], No. 27326/68. Heading B3B. [Also in Divisions F2 and G2] A support for positioning an object such as a laser tube L on an optical bench, to permit small independent displacements, comprises a stack of plates 10, 20, 30, 40, 50, 60 each of which causes a displacement relative to the plate below itself except the plate 60, two adjacent surfaces being planar for rectilinear horizontal displacement, such as those between plates 10 and 20, and two adjacent surfaces being curved such as those between 40 and 50, for displacement in rotation about a horizontal pivot, there being superposed holes (81, 82, 83, 84), Fig. 2 (not shown), at the corners of each plate forming a " well " in which is lodged a coil spring maintained above and below by rods (92, 93). All of the six stacked plates except 60 comprise a central recess such as 11 through which extends a rod T carried on the upper plate 60; a drive lug 12 screw threaded and carrying a micrometer drive screw 14 which bears on a corresponding side of the plate immediately above it ; an abutment lug 13 bearing on a return spring 25 bearing on the plate immediately above the lug 13; three balls such as 16, 17, 18 crimped on the upper face with their upper hemispheres relieved; four holes 19 at the four corners, plate 50 has two abutment lugs and two return springs. The plates 20 to 60 have on their lower face a triangular section groove (S 4 ), Fig. 3 (not shown), into which are inserted two of the balls of the plate below, and a notch (D 4 ), Fig. 3, into which the third ball of the underneath plate is lodged, with the exception of plate 30 which instead contains a circular groove which receives the three balls of the plate 20. By manipulation of the appropriate drive screws 14, 24, 34, 44, 54, there is effected respectively a rectilinear displacement in direction f 2 , a circular displacement f 3 , a rectilinear displacement f 4 , a circular displacement f 5 , and a circular displacement f 6 . A movement affecting one plate is transmitted to the portion of the structrue above this plate. By manipulation of the screw 64 which acts through gear means E, the rod T is able to travel in the vertical direction f 1 . The rod T extends through all the central recesses and carries at its lower end a gripper P grasping the laser tube L. The upper faces of plates 40 and 50 carry protuberances R 4  and R 5 . The displacement resulting from the total of the five elementary displacements, which are generally small, is transmitted by plate 60 to the rod T. In another embodiment, Fig. 2, a device has four plates for permitting four displacements. The same construction is provided at the four corners of the apparatus.
Patent GB-1234273-A (GB)
IPC: H04R11/00
Filed: 1968-05-13
Abstract: 1,234,273. Electro-mechanical transducers. TIBBETTS INDUSTRIES Inc. 13 May, 1968 [16 May, 1967], No. 22598/68. Heading H4J. An electro-mechanical transducer (Figs. 1, 2, 3) (e.g. a microphone or receiver of a hearing aid) has within a casing 7 of high magnetic permeability material, magnets 8 and 9 which provide polarizing flux across a working gap. An armature comprises a generally U-shaped yoke 1 and an armature leg 2 which extends from the working gap through a signal coil 12 to the cross-piece 38, 39 of the yoke 1. The leg 2 is compliant in flexure. The cross-piece 38, 39 is compliant in torsion about an axis perpendicular to the leg 2. It is within the easing 7 and substantially closes, for magnetic shielding purposes, an opening in the casing 7. The cross-piece 38, 39 is connected by portions 40, 41 to ends 42, 43 connected to the casing 7. The position of the leg 2 in the working gap is adjustable by twisting inelastically the crosspiece 38, 39 the plastic deformation being substantially confined to the cross-piece 38, 39. An adjusting pad 4 is provided and this may be held by jaws of an arm for adjustment of the location of the leg 2. A U-shaped closure 14 of high magnetic permeability material is at one end. A terminal board 15 has terminals 28, 29 connected to the coil 12. The magnets 8, 9 have tapered polepieces 10, 11 separated by non-magnetic shims 44, 45. The vibratable end of the leg 2 is connected to a diaphragm 17 by a pin 6. The other end of the diaphragm 17 has a flexural pivot 5. A top cover 21 of magnetic material is provided and the air space above the diaphragm 17 is connected through an aperture 22 to an air space formed by an end closure 24. An acoustic connector 25 and a sleeve 26 contain an acoustic impedance. In one alternative embodiment the armature yoke comprises a cross-piece 107 (Fig. 30) having arms 501, 502 extending away from the armature leg 2. Arms 501, 502 are connected to the casing 7 (Fig. 29, not shown). In another alternative, the armature leg (200, 201), Fig. 7 (not shown) is composed of two layers. The adjusting pad (400), Figs. 9 to 11 (not shown) is integral with the yoke (100). An armature leg (202), Figs. 12 to 14 (not shown) has an end piece (372) formed at right angles, an adjusting rod (401) and a filler piece (300) all made from one piece. Other constructions of armature are described (Figs. 15 to 28 and Figs. 31 to 36, not shown).
Patent GB-1234403-A (GB)
IPC: B65G23/00
Filed: 1967-08-05
Abstract: 1,234,403. Drive means for endless conveyers. B. A. GOUGH EQUIPMENT Ltd. 5 Nov., 1968 [5 Aug., 1967; 17 Oct., 1967], Nos. 36054/67 and 47209/67. Heading B8A. The drive of an endless conveyer belt comprises a two-way hydraulic ram 40 coupled to a rocker 29 pivotally mounted on a wheeled carriage 15 with the lower run of the endless belt 54 passing between the rocker 29 and a support surface 18 of the carriage such that on movement of the carriage in one direction the belt is gripped between the rocker and the surface and is moved thereby and on movement of the carriage in the opposite direction the belt is free. The rocker 29 has inclined upper surfaces 33, 34 covered with frictional material 35, 36 for engagement with the belt and is associated with a control lever (45), Fig. 2 (not shown), movable between positions 50, 51, 52. In the position 50 rotation of the rocker and thus any gripping of the belt is prevented on movement of the carriage, in position 51 the rocker can pivot clockwise in Fig. 3 to grip the belt and move it to the left in Fig. 1 and in position 52 the belt is moved to the right. The length of travel of the carriage is controlled by adjustable microswitches 58, 59, the circuitry of which may also include a time delay between the forward and return strokes of the ram. The upper run of the conveyer may be supported by stationary plate, or rollers or by an air cushion. Two such drive units may be employed to operate 180 degrees out of phase and thereby provide continuous movement of the conveyer.
Patent GB-1234655-A (GB)
IPC: G03G13/22
Filed: 1968-05-28
Abstract: 1,234,655. Electro-photographic processes. CANON K.K. May 28, 1968 [May 31, 1967(2); Aug.2, 1967(3); Nov.4, 1967], No.25559/68. Heading G2H. The subject matter of this Specification is substantially the same as that described in Specification 1,221,333, but is also concerned with a process wherein either the exposure step and charging step or the charging and developing steps are carried out simultaneously. In one embodiment, for carrying out simultaneous charging and development conductive rollers Ra, R<SP>1</SP>a, Fig. 5, apply a positive voltage to a photo-conductive layer 1a and anegative voltage to a support 2a respectively. Liquid developer 6a is applied by a roller Ra<SP>11</SP>. In another embodiment, conductive rollers r b , r<SP>1</SP> b  Fig. 6 and an insulating roller r<SP>11</SP> b  apply a carrier liquid uniformly to an image exposed photo-conductive layer 1b. Conductive rollers Rb and Rb<SP>1</SP> apply a voltage between layer 1b and support 2b, while roller R<SP>11</SP>b supplies developer 6b to the roller Rb, thereby charging and developing a latent image simultaneously. In another embodiment Fig. 8 in which charging and exposure are carried out simultaneously a photo-conductive layer 1d contacts a conductive glass coating 4d of a transparent electrode N/d, while support 2d contacts a conductive electrode 5d. A voltage source Sd applies a voltage during exposure using an optical system Ld, to form a latent electrostatic image. Alternatively, a transparent drum electrode (Ne) Fig.9 (not shown) houses an optical system L<SP>1</SP>e which exposes a photo-conductive layer (1e) during the application of a voltage by the electrode (Ne) and an electrode 5<SP>1</SP>e. The resulting latent electrostatic image is developed with liquid developer 6e.
Patent GB-1257269-A (GB)
Filed: 1970-06-02
Abstract: 1,257,269. Alpha-amino cycloalkanone oximes. AJINOMOTO CO. Inc. 2 June, 1970 [2 June, 1969; 6 Sept., 1969], No. 26512/70. Heading C2C. Alpha-amino cycloalkanone oximes of the Formula I where n is an integer from 1 to 8, are prepared by reacting ammonia in a molar ratio of at least 20:1 with a compound of the formula where R is a phenyl radical optionally substituted by one to three lower alkyl C 1-4 , nitro, lower alkanoyl C 2-4 , formyl, lower alkoxy C 1-4 , chlorine or bromine radicals or R is a -COR<SP>1</SP> group, where R<SP>1</SP> is a lower alkyl C 1-4 , phenyl or 3,5-dinitrophenyl radical. The compound I may subsequently be converted to a salt by reaction with a strong acid.
Patent GB-1257471-A (GB)
IPC: F15B13/04
Filed: 1968-09-20
Abstract: 1,257,471. Valves. TEMPLE INSTRUMENTS Ltd. 17 Sept., 1969 [20 Sept., 1968], No. 44704/68. Heading F2V.  A blank for a valve body is moulded or cast from synthetic resinous material, e.g. acetal resin, and comprises a bore 15 adapted to receive a piston for movement parallel to the axis of the bore, having a first series of zones 17 to 21, separated by ribs 16, a first series of port-forming recesses 28 to 32, each separated from a zone by a web 33, a second series of port-forming recesses 38 to 42, each separated from a zone by a web 47, the thicknesses of the webs 33 being constant and being less than that of the webs 47 which are also constant, so that to form a body having the first series of recesses connecting with the bore 15, the blanks are machined to remove the webs 33 and to effect connections to the second series, further machining takes place until the webs 47 are removed, and the first series of recesses can be plugged if necessary. A second series of zones 22 to 27 is formed in the bore, and are adapted to house sealing rings. If the piston is to be pilot operated, further recesses 49 and 50 are formed in the blank which may be connected by drillings 51, recesses 53 are formed which can be connected by a drilling 54. The webs 33 can be thicker than the webs 47.
Patent GB-1264850-A (GB)
IPC: B65H19/22
Filed: 1969-11-28
Abstract: 1,264,850. Winding webs. BELOIT CORP. 28 Nov., 1969 [6 Feb., 1969], No. 58437/69. Heading B8R. A web winding machine is provided with a loader adapted to receive and support a plurality of empty horizontally disposed reels which are successively loaded into a device for transfer from the loading location to a winding location. As shown, a loader for a winding machine of the "Pope" type comprises a pair of horizontal parallel bars 45 which engage the respective ends of empty reels 21 supported by the bars (Figs. 2 and 3, not shown). Chaindriven feeding members 55 (Figs. 4 and 5, not shown) urge the reels along the bars so that the endmost reel abuts against a pair of upwardlyprojecting members 59; loading arms 62 are movable to lift the endmost reel above the abutment members 59 and then lower that reel into reception by transfer arms 15 which can be operated to transfer the reel from the loading location to a winding location defined by a driven roller 13. When the diameter of the wound roll 29 reaches a desired value the arms 15 move the empty reel to engage the drive roller 13 so that the reel is brought up to speed; pressure arms 31 are then moved so that the wound roll 29 is brought out of contact with the drive roller 13, the consequent slowing down of the wound roll causing a free loop of web 35 to be formed between the wound roll and the rotating empty reel. Air jets from nozzles 39 direct this loop to wrap around the empty reel when the web 35 then tears to separate the wound roll from the incoming web. With the winding of the empty reel thus initiated, the pressure arms transfer the wound roll 29 to a temporary storage position 40 from which the roll passes to a braking position 41 and then return to engage the new reel; the transfer arms 15 then disengage that reel and return to the loading location to receive another empty reel from the arms 62, the movement of the arms 31, 15 and 62 being automatically controlled in timed relation to the winding cycle.
Patent GB-1266003-A (GB)
IPC: B21D7/06
Filed: 1969-04-22
Abstract: 1,266,003. Bending tubes. WALKER MFG. CO. 22 April, 1969, No. 20512/69. Heading B3E. A multi-bend tube bender 1 having a reciprocable ram 3 and means for controlling the bending stroke of the ram includes a turret 13 and a stud 15 for each bend mounted on the turret and a spring-back compensator support 25 mounted on the ram and having an axially adjustable compensator member 35 located to contact the ends of each of said studs and thereby determine the depth of stroke of the ram. The ram die 5 co-operates with pivoted wing dies 7 and 9. The turret is mounted on a spring-loaded shaft 11 and is indexed after each stroke of the ram by an adjustable stop bar 31 which engages a limit switch 33 to bring successive studs 15 in alignment with the compensator member e.g. a bolt 35 so that the turret by engaging another limit switch 29 reverses the ram cylinder to elevate the ram. Thus the downward movement of the ram is controlled to produce the desired depth of bend in the pipe. If the spring-back characteristics of a batch of pipes change and it is necessary to increase the settings of the studs 15 to produce pipes having a uniform bend this can be simply accomplished by rotating the compensator bolt 35.
Patent GB-1289246-A (GB)
IPC: F23D14/04
Filed: 1971-04-22
Abstract: 1289246 Gas burner JUNKERS & CO GmbH 22 April 1971 [23 April 1970] 10757/71 Heading F4T A linear gas burner comprises a single elongated main burner tube 11 having a row of burner orifices 12 for the formation of main flames and at least one further burner tube 13, 14 arranged parallel and in close proximity to the main burner tube 11 and having a row of burner orifices for the formation of auxiliary flames to prevent lift-off and assist combustion of the main flames, the gas supply 17 to the main burner tube and the gas supply 18 to the further burner tube or tubes from an expansion chamber being adjustable independently of one another. An adjustment may be provided for varying the height of the main tube 11 relative to the further tubes 13, 14. An assembly of several parallel such linear burners may be formed in which all the main tubes have a common supply line (19) (Fig. 2, not shown) and all the further tubes have a common supply line (20), each line having a tap (21, 22) for variation of supply.
Patent GB-1290541-A (GB)
IPC: F24C15/10
Filed: 1969-01-24
Abstract: 1290541 Control systems for electric cookers RADIATION Ltd 9 Jan 1970 [24 Jan 1969] 4089/69 Heading H2H A control system for a heating element 12 of an electric cooker comprises a control unit 10 fed from an A.C. supply 11 and a panel of proximity switches 15 each of which is manually operable by means of plaques 14 0  to 14 6 . Finger tip touch on any plaque 14 causes the corresponding switch 15 to be operated, the control unit 10 then causing energization of the heating -element 12 in accordance with the selected plaque. Indicator lights 16 1  to 16 6  are provided so as to show which switch 15 has been operated and the heating element 12 may have an associated sensor 13 giving automatic temperature control. The control unit 10 preferably comprises a number of thyristors which may be either phase controlled or "burst firing" controlled. 'In a further embodiment two rows of plaques and switches are provided to give coarse and fine switching of the heating element.
Patent GB-1296358-A (GB)
IPC: H01H33/664
Filed: 1968-12-11
Abstract: 1296358 Vacuum switch contacts ASSOCIATED ELECTRICAL INDUSTRIES Ltd 6 March 1970 [11 Dec 1968] 58807/68 Heading H1N A contact for use in a vacuum switch has a face comprising an annular peripheral portion 4 of a metal, such as molybdenum, having a high arcing voltage and an inner portion consisting of a matrix 6 of a metal, which may also be molybdenum, of high arcing voltage with its interstices filled with a metal 8 of low arcing voltage, which may be an alloy of 50% copper and tin. The matrix 6 is formed from two molybdenum tapes, one flat and one corrugated wound together into a spiral. In making the contact the spiral is inserted into a cylindrical cup 14 of greater depth than the spiral; the remaining depth is filled with pieces 22 of the alloy and the whole heated until the alloy fills the spiral; the face of the contact is then machined flat. The finished contact may then be arced at low current to reduce the level of the alloy slightly below that of the spiral matrix. Other manufacturing details and specific dimensions are given.
Patent GB-1297082-A (GB)
IPC: F25J1/02
Filed: 1970-05-12
Abstract: 1297082 Natural gas liquefaction process AIR PRODUCTS & CHEMICALS Inc 12 May 1970 [12 Jan 1970] 22887/70 Addition to 1291467 Heading F4P In a methane rich gas mixture liquefaction process as claimed in the parent Specification and wherein the feed stream 10, 26, 34 is precooled to substantially below 32‹ F., e.g. 29‹ F., by indirect heat exchange at 12, 24, 36 with a compressed single component refrigerant, e.g. propane and is then liquefied and subcooled by indirect heat exchange at 48, 54 with first and second subcooled liquid portions derived from a compressed multicomponent refrigerent, e.g. propane, ethane, methane and nitrogen, including at least one component (nitrogen) more volatile than methane and wherein the multicomponent refrigerent is precooled by heat exchange at 86, 88 with said single refrigerent so as to partly condense the multicomponent refrigerent which is then separated at 110 into a liquid portion 112 which is subcooled at 114 in heat exchange with itself after expansion at 116 to form said first subcooled liquid portion, and in a gaseous portion 120 which is liquefied and subcooled at 122, 124 by heat exchange with itself after expansion at 128 to form the second subcooled liquid portion, the refrigerent is compressed at 100, 102 to above 500 p.s.i.a. is subcooled at 86, 88 to below 32‹ F. and has an average molecular weight lying between 24 and 28. The two liquid portions of the multicomponent refrigerent are thus vaporized and pass from the heat exchanger casing 50 through lines 136, 138 to compressor 100, 102, exchangers 86, 88 to the separator 110, thus forming a closed circuit. The feed gas mixture is freed of water vapour and benzine in driers 20, a scrubber column 28 and separators 14, 38. The single component refrigerent may also comprise ethane, propylene, butane and C 2  to C 4  halogens.
Patent GB-1304513-A (GB)
IPC: A23K1/18
Filed: 1969-03-07
Abstract: 1304513 Food for crustacea RANKS HOVIS McDOUGALL Ltd 6 March 1970 [7 March 1969] 12272/69 Heading A2B In the intensive rearing of crustacea, growing crustacea are fed a prepared food composition comprising a chitinous meal. A suitable source of chitin is crustacean meal prepared from the waste heads and/or shells of crustacea, previously reared to maturity. The food composition may also contain fish meal, flour, dried yeast, cod-liver oil, mineral and vitamin supplements and a binder, and may be utilised in pellet form.
Patent GB-1309243-A (GB)
Title: Hydraulic braking systems for vehicles
IPC: B60T13/14
Filed: 1969-03-28
Abstract: 1309243 Master cylinders GIRLING Ltd 11 March 1970 [28 March 1969] 56986/70 Divided out of 1309242 Heading F2F A master cylinder comprises a piston 2 axially movable in a bore 4, a pressure space 42 in front of the piston, a passage 53 connected to a source of pressure fluid such as a pump or accumulator and opening into the space 42, the passage being controlled by a normally closed tiltable valve 51, a passage 44 connecting a reservoir to the space 42 the passage being controlled by a normally open tiltable valve 47, and a follower 8 resiliently connected to the piston which opens the first valve 51 and closes the valve 47 on forward movement of the piston. The follower 8 comprises a radial flange 9 having ports allowing passage of fluid on forward movement of the follower. The piston rod also operates a secondary piston assembly 17.
Patent GB-1325300-A (GB)
Title: Gas-cushion vehicles
IPC: B60V3/02
Filed: 1972-05-22
Abstract: 1325300 Air cushion vehicles AIR CUSHION EQUIPMENT Ltd 22 May 1972 [22 May 1971] 16508/71 Heading B7K  A wheeled transporter 1 is off-loaded by an air cushion 3 confined by a skirt of U section contiguous elements 5. In order to reduce wear of the lower edge of the skirt a sheet 6 of rectangular planform is secured at 20 at its forward edge to the vehicle so as to be dragged over the ground surface 2 in face-to-face contact therewith. Ties 19 may secure the rear edge of the sheet to the vehicle and similar attachments may be made at the sides. The rear ties may be replaced by an attachment 20. Air for the cushion is delivered through ducts 15 and manifold 16 supplied through duct 17 from a pump on a towing vehicle and to reduce the contact pressure of the sheet 6 with the ground the sheet has a large central aperture or a plurality of perforations. An adjustable form of attachment for the forward edge of the sheet is described (Fig. 4, not shown).
Patent GB-1327821-A (GB)
Title: Personnel-carrying vehicle bodies
IPC: B60P3/32
Filed: 1970-07-13
Abstract: 1327821 Demountable bodies LEXTILLOTSON (TOTTON) Ltd 11 Oct 1971 [13 July 1970 23 July 1970] 33850/70 and 47317/70 Heading B7B A closed passenger seating and windowed body having a stepped passenger entry and exit 5 is provided with extensible legs 2 adapted to support the body independently of a vehicle chassis. The legs, which may be hydraulically or mechanically operable, may be hinged so as to be retractable to a stowed position. The body may have an underframe (Fig. 3, not shown) having female conical locating elements which mate with similar male elements on a chassis. Locking elements for fixing the body to the chassis may be provided.