baber/WOPTO huggingface dataset:
Patent GB-850315-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B3/00
Filed: 1957-04-18
Abstract: 850,315. Combustion chambers. MOTORENWERKE MANNHEIM A.G. VORM. BENZ ABT. STAT. MOTORENBAU. April 18, 1957 [April 20, 1956], No. 12773/57. Class 7(3). The mouth of a precombustion chamber is formed by an insert 1 having a central orifice 2, through which the fuel jet is injected so that its envelope just touches the orifice wall 3, and outer passages 25 through which the bulk of the compressed air flows into the precombustion chamber, the insert being insulated by an air space 6 so that the temperature of the wall 3 of the orifice 2 is maintained between 450‹C. -and 650‹C., whilst that of the outer wall 5 of the insert and the precombustion chamber wall is maintained below 300‹C. The outer passages 25 are formed between ribs 4, Fig. 3, and in an air-cooled engine, Fig. 1, the precombustion chamber wall 12 is provided with cooling ribs 11 and situated in the cooling air stream. In a light metal cylinder head construction the insert 1 is seated on a shrunk-in ring 10 of heavy metal. In a watercooled engine, the insert and precombustion chamber are insulated by air spaces 6, 19 and 20.
Patent GB-724599-A (GB)
Title: Improvements in or relating to spool winding devices for sewing machines
IPC: D05B59/00
Filed: 1953-05-08
Abstract: 724,599. Sewing-machines. PFAFF AKT.- GES., G. M. May 8, 1953 [May 9, 1952], No. 12837/53. Class 112. A sewing-machine 22, having a handwheel 23 and an apertured cover 24, is provided with a bobbin-winding device comprising an arm 31 pivoted at 32 to a baseplate 27 and biased to an inoperative position by a spring 33; a support 42 for a bobbin 43 mounted to rotate in the arm with a rubber-rimmed wheel 37 and driven, when the arm is in an operative position, by the engagement of the wheel 37 with a face of the handwheel; an arm 48 pivoted at 49 to the baseplate and biased to an inoperative position by a spring 51, said arm having an end 59 disposed at a distance "b" from the bobbin-support when the arm is in an operative position; and resiliently biased means disposed between the arms for moving arm 31 to its operative position when arm 48 is moved manually to its operative position, for maintaining the arms in their operative positions, and for releasing the arms for return to their inoperative positions when arm 48 is moved a certain distance away from its operative position. The resiliently biased means is in the form of a plunger 53 mounted in the arm 48 and urged outwardly by a spring 57 to bear, in the operative positions of the arms, against a face 47 of arm 31. A depth of thread on the bobbin in excess of the distance b engages the end 59 to move the arm 48 clockwise for disengaging the plunger 43 from the face 47, when arm 48 is moved by spring 51 to abut a fixed stop 62, and arm 31 is moved counter clockwise by spring 33 to disengage the wheel 37 from the handwheel and to engage a notch 46 in arm 31 with the plunger 53. The major part of the bobbinwinding device is concealed by the cover, only the bobbin-carrier 42 and the end 59 of arm 48 projecting through the aperture 66 in the latter.
Patent GB-457760-A (GB)
Title: Improvements in or relating to alloy steels
IPC: H03F1/08
Filed: 1935-04-30
Abstract: In the production of an alloy steel by adding tantalum, niobium, vanadium, zirconium, boron, or titanium to a high carbon iron containing at least 2 per cent of carbon whereby a suspension of the carbide of the added element is formed by reaction thereof with the carbon in the iron, the carbide so produced are isolated by chemical means such as treatment with hydrochloric acid, for use as abrasives, or for the manufacture of tools.  The high carbon iron may comprise white pig iron with the addition, if necessary, of solid carbon.ALSO:An alloy steel particularly suitable for cutting tools, is produced by adding tantalum, niobium, vanadium, zirconium, boron, or titanium to a high carbon iron containing at least 2 per cent of carbon whereby a suspension of the carbide of the added element is formed by the reaction thereof with the carbon in the iron. The high carbon iron may consist of white pig iron with the addition, if necessary, of solid carbon.  The amount of tantalum &c. which is added is sufficient to absorb all the carbons present in excess of 0,7 per cent, e.g. up to 40 per cent, so as to enable the matrix to be hardened by heat treatment, and known steel making elements such as chromium up to 30 per cent, tungsten up to 20 per cent, and molybdenum up to 10 per cent may be added to the matrix so produced. For the production of a steel which is capable of nitrogenization, tantalum, or niobium is added in excess of that required to absorb the carbon in the melt, together with aluminium.  The carbide may be isolated by chemical means such as treatment with hydrochloric acid for use as an abrasive or for the manufacture of tools.
Patent GB-892560-A (GB)
Title: Improvements in and relating to electric space heaters
IPC: F24H3/04
Filed: 1960-04-11
Abstract: 892,560. Ventilation. CHINN, A. J. Jan. 18, 1961 [April 11, 1960], No. 12856/60. Class 137 [Also in Group XI] An electric space heater comprising a casing containing a duct in which are located a fan b and heating elements j and which communicates with aperture i in the lower part of the casing front wall, has controllable fresh air inlet h and a room-air recirculation inlets a and d. In operation mixtures of fresh and recirculated air from inlets d and h may be forced down the duct where they are heated. Any of ducts a, d and h may be closed and if the heating elements are de-energized the device may be used for air conditioning purposes.
Patent GB-636832-A (GB)
Title: Improvements in or relating to nets for catching insects, fish and the like
Filed: 1948-05-11
Abstract: 636,832. Catching insects. SMALL, H. M. May 11, 1948, No. 12882. [Class 5 (i)] [Also in Group VI] A collapsable hoop-shaped support for a net for catching insects, comprises a Bowden cable, the ends of the outer sheath of which are secured in a body portion carried by the handle, means being provided whereby the inner wire may be tensioned to render the outer member rigid. The body portion 4, Fig. 1, is in two halves secured together by bolt 8 and a sleeve 9. The ends of the inner wire 12 are fitted with nipples 14 which are located in a slidable socket 16 making adjustable screwed engagement with the handle 11. A lug 21 on the body engages a groove 20 in the socket to prevent rotation of the latter. In Fig. 3 the body portion comprises parallel plates welded or brazed in slots in a tube 19. Guide tubes 2 and 3 for the cable sheath are welded or brazed between the plates. The body portion may be made by casting or stamping instead of by fabrication.
Patent GB-289819-A (GB)
IPC: A61K31/49
Filed: 1928-05-02
Abstract: 289,819. Woelm Akt.-Ges., M. May 2, 1927, [Convention date]. Morphine solutions.-Morphine hydrochloride is treated in solution with the quantity of disodium phosphate required to produce a solution having a weakly alkaline reaction corresponding to that of the blood, so as to be suitable for injection. It is stated that the treated solutions remain clear for some time and that the morphine is converted into a lipoid soluble condition. The solutions may be put up in double ampoules, of which one part contains the dry morphine hvdrochloride or a solution thereof, and the other part a dilute solution of secondary sodium phosphate. In the Specification as open to inspection under Sect. 91 (3) (a) it is stated that the morphine solution may contain excess acid and the phosphate solution a corresponding amount of alkali; and the addition of di-sodium phosphate to morphine solutions and morphine salt solutions in general is referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-1103574-A (GB)
Title: A process for the manufacture of 9ª,10ª-methyl-steroids
IPC: C07C309/66
Filed: 1965-03-29
Abstract: The invention comprises a process for preparing 3 - keto - 4 - dehydro - and 3 - keto - 1, 4 - bisdehydro - 9b , 10a  - steroids of the androstane and pregnane series by condensing a 9b , 10b  - des - A - androstan - or pregnan - 5 - one with a C1- 6 alkyl vinyl ketone or a C1- 6 alkyl ethynyl ketone.
Patent GB-1213459-A (GB)
Title: Artificial kidney machines
Inventor: JONES PETER DAVID
IPC: G01N27/06
Filed: 1967-03-21
Abstract: 1,213,459. Electro-chemical analysis. JOSEPH LUCAS (INDUSTRIES) Ltd. Feb. 13, 1968 [March 21, 1967], No.13201/67. Heading G1N. In an artificial kidney machine the concentration of the dialysate fed to the dialyser 11 is monitored in a conductivity cell 13 and compared in an A.C. bridge-circuit with the conductivity of a reference cell 16 to give a warning or effect a control if the concentration departs from a safe level.
Patent GB-514389-A (GB)
Title: Process for the production of valuable hydrocarbon oils by destructive hydrogenationof solid carbonaceous materials
IPC: C10G1/06
Filed: 1938-05-04
Abstract: 514,389. Destructive hydrogenation. POTTS, H. E. (Naamlooze Vennootschap Internationale Maatschappij voor Hydreerings-Technic en- Chemie). May 4, 1938, No. 13231. [Class 32] In the destructive hydrogenation of solid carbonaceous materials the hydrogen partial pressure is lowered after substantial hydrogenation has taken place to less than half its original pressure by the introduction of gases free from or poor in hydrogen into the reaction space at one or more places. A substantial hydrogenation has taken place if at least 80 per cent. of the coal has been dissolved in the solvent or pasting oil applied and at least about 1¢ per cent. by weight of hydrogen calculated on pure coal has been taken up, and hydrogenation to this extent is usually effected when the reacting materials have passed through at least onethird of the reaction space. The gases introduced may comprise nitrogen, carbon dioxide, water vapour, or a part of the hydrogenating gases issuing from the reaction which contain hydrocarbon gases and are impoverished in hydrogen. The gases should be added at a temperature not more than 50‹C. below the reaction temperature, and preferably in amount so that the total reaction pressure remains constant. The hydrogen partial pressure is lowered from about 200-600 atmos. to 30-70 atmos. Brown coal soaked with 2 per cent. ammonium sulphide and pasted with an oil of boiling range 200-275‹C. obtained in the reaction, is mixed with 0.5 per cent. of the reaction residues and 3 per cent. lux masse. The mixture is heated with 1,000 cubic metres hydrogen per ton coal under 300 atmos. pressure up to 425‹C. in a gas-heated pre-heater and passed into an upright reaction vessel. After the paste has passed tbrough about two-fifths of the reaction space, 1,400 cubic metres of a gas obtained in the reaction containing, besides hydrocarbons, carbon monoxide and carbon dioxide, 25 per cent. hydrogen are added at 410‹C. 95 per cent. of the coal is converted and a product comprising 5 per cent. middle oil 5 per cent. benzines, and 90 per cent. oils boiling above 275‹C. is obtained. The middle oil is used for pasting fresh coal and as an addition to the residues separated in the hot catch pot to aid filtration. A throughput of 700 kilograms of residues per square metre of filter space per hour is thus obtained.
Patent GB-1412755-A (GB)
Title: Electrical connector
IPC: H01R4/40
Filed: 1972-03-21
Abstract: 1412755 Electrical connector BOWTHORPE HELLERMANN Ltd 20 March 1973 [21 March 1972 29 Nov 1972] 13261/72 and 55192/72 Heading H2E A connector, Fig. 1, for an intermediate part of a cable 10 and a conductor 14 has electrically conductive clamping elements 18, 20 having grooves 32, 36 for conductor 14, having a bolt 22, nut 24 and curved washer 26 clamping elements 18, 20 together, a recess 30 for conductor 10 and threaded aperture 38 with screw 40 with slotted end for biting into 10. Three slots radiate from the centre of the end face of 40 and are slanted so that their trailing edges form cutting edges biting through insulation 12. Element 20 has slot 28 allowing 20 to rock relative to bolt 22. The outer insulation of the cable (not shown) and the insulation 16 and outer conductor of inner conductor 14 are removed in the region of the connector before it is attached. Another embodiment, Fig. 3, comprises bridge 120, bearing contact screw 122 (as 40), clamp 118 with portion 124 defining a recess for conductor 10 and having ribs 126 and 128, which dig into insulation 12, and hooks 132 and 130, between which and groove 134 conductor 14 is clamped when nut 24 is tightened to tilt 120 about 132 and clamp conductor 10. Similar connectors with insulation between may be placed around conductors 142, 144 and the assembly protected by a housing.
Patent GB-528305-A (GB)
Title: Improvements relating to filing trays
IPC: B42F17/02
Filed: 1939-05-03
Abstract: 528,305. Filing papers. REMINGTON RAND, Inc. May 3. 1939, No. 13268. Convention date, June 3, 1938. [Class 146 (i)] In a filing tray comprising a body portion with bottom 2, Fig. 1, side-walls 3, and an end-wall 8 hinged at its lower end to an end of said bottom, the end-wall 8 comprises a pair of sheet metal sections 9, 10 flanged at the edges, the flanges 15, Fig. 6, of the one fitting the flanges 21 of the other and spacing the sections apart to enclose two vertical channel members 22, one at the edge of each side to provide a rigid wall structure. A retainer member 24, Fig. 4, moves in cut-out guideways formed in the outside of the channels 22 next to the outer metal section 9. The retainer 24 has lateral extensions 25 on its ends which are in line with the side-walls 3 of the tray, and are virtual extensions of them. Projections 26, 27 and a cam 30 on the extensions 25 coact with shoulders 5 on the side-walls 3, a spring 32 being provided between the flange 16 on the section 10, and a flange 31 on the member 24. A strip 33 is attached to the member 24 and has its other end bent over to form a handle 34 whereby the retainer may be depressed and the end 8 tilted or returned to the vertical. A handle is formed at the end by rolling the section 9 over a bar 12 and stamping a hole out beneath, the release handle 34 for the retainer member 24 projecting into the handle aperture.
Patent GB-132775-A (GB)
IPC: D06C29/00
Abstract: 132,775. Regout, J. Sept. 14, 1918, [Convention date]. Addition to 6268/15. Pile or nap, raising.-A machine of the kind described in the parent Specification is modified by mounting the raising-rollers and their driving means in a fixed frame, while the fabric is guided through a travelling carriage, which is movable to and fro on the fixed frame transversely to the traverse of the fabric. As shown, adjustable raising-rollers e, Fig. 1, having their axes parallel to the weft of the fabric and raising-rollers d having their axes parallel to the warp are mounted on a fixed frame b carrying the driving-mechanism for the rollers. The fabric a to be treated is mounted on a carriage 2 having feeding-rollers 3 and idler rollers 4, the carriage being reciprocated on rails 11 by stub-shafts y engaging oblong slots z in beams 1 on the carriage. Each shaft y is carried by an endless chain v mounted on sprocket-wheels u on the fixed frame and driven from a shaft g<1> of the driving means through a clutch and chain drive. The carriage is provided with spur-wheels 7 movable over rack-bars 8 on the fixed frame. The wheel 7 co-operates with ratchet devices to rotate bevel-wheels 12, Fig. 4, alternately in opposite directions and thus to rotate a bevel-wheel 13 intermittently in the same direction. The wheel 13 drives a sprocketwheel 15 and a chain 16, Fig. 1, which transmits motion to the rollers 3 to feed the fabric.
Patent GB-969906-A (GB)
Title: Improvements in or relating to tools,such as crimping tools
IPC: H01R43/042
Filed: 1961-04-13
Abstract: 969,906. Crimping pliers. CANNON ELECTRIC CO. April 13, 1961 [Oct. 3, 1960], No. 13300/61. Heading B4W. A tool adapted to crimp a contact terminal 112 for an electrical connector on a conductor wire 118 comprises a tubular housing 12 open at its forward end, the forward portion 28 having a conical inside surface 36, a number of converging jaws 80 in the housing and engageable against the surface 36, actuator means including an actuator bar 40 longitudinally slidable in the housing and engageable against the jaws, forward movement of the actuator means by a pivoted handle lever 20 causing the jaws to be cammed radially inwards against the inside surface 36 of the housing. The tubular portion 60 of the actuator means has a forwardly opening bore to receive the member 112 to be crimped and has radial openings 78 through which, portions of the jaws 80 are movable to engage the member 112. A resilient collet 110, disposed about the portion 60 of the actuating means, engages against the jaws so as to bias them radially outwards. A wedge 126 in a recess 122 is biased against the bar 40 by a compression spring 130 and locks the bar 40 against rearward movement. At the end of the crimping stroke a pin 144 on the actuator engages the end of the wedge and shifts it into non-wedging position. Thereupon a spring- biased pivoted latch 132 engages the wedge and holds it inoperative during return movement. A small arm 46 pivoted on the handle 20, engages a notch 44 at the end of the bar 40 and functions as a toggle link.
Patent GB-133439-A (GB)
IPC: B23K9/073
Abstract: 133,439. British Thomson - Houston Co., (General Electric Co.). Oct. 9, 1918. Heating by electricity.-In electric-arc welding, the voltage and amperage of the current are varied inversely to maintain a substantially constant energy in the arc, and thereby avoid the use of large regulating-resistances. The preferred form of apparatus is shown in Fig. 1, and consists of a balancer set connected to supply main. The welding-electrodes 1, 2 are connected by conductors 3, 4 with a set including a motor 5 and generator 6 having their armatures connected in series and supplied with power from the mains 9, 10. The motor 5 has one field winding 11 connected in series, and a second 12 connected in shunt. The generator 6 has a separately excited field winding 14 and an opposing field winding 16 connected in series with the arc. The winding 16 has a number of taps 17 and a switch 18 so that the number of turns in use can be varied. A small reactance 20 may be included in the circuit to smooth out fluctuations.
Patent GB-1493335-A (GB)
Title: Downshift control circuit for hydraulically controlled variable-ratio transmission
IPC: F16H59/20
Filed: 1975-04-01
Abstract: 1493335 Change speed control NISSAN MOTOR CO Ltd 1 April 1975 [25 April 1974] 13346/75 Heading F2D To increase engine braking in a motor vehicle having an automatic transmission with hydraulically engaged ratio-selecting clutches and brakes, the shift speeds are raised, producing earlier downshift, by depression of the service brake pedal 21, this condition persisting until released by depression of the accelerator pedal 22. Energization of a solenoid 17, operating a downshift signal valve 16, is produced by closure of a normally open switch BS by the brake pedal 21, which energizes a first magnet relay 18a to close first contacts 18b, which complete a hold-on circuit to the first magnet 18a through a normally closed acceleratoroperated switch IS, and also energize a second magnet relay 19a closing second contacts 19b, which complete an energizing circuit to the downshift valve solenoid 17, such circuit persisting until depression of the accelerator 22, from engine idle, opens the switch IS, which then opens both contacts 18b, 19b to de-energize the downshift solenoid 17. A normally open switch KS, in parallel with the second contacts 19b, is closed by full depression of the accelerator pedal 22 for kickdown at any time. A lamp 23 indicates closure of the brake switch BS.
Patent GB-1293469-A (GB)
Title: Tape recording apparatus
IPC: G11B15/16
Filed: 1970-03-20
Abstract: 1293469 Loading magnetic cassette tapes LESA COSTRUZIONI ELETTROMECCANICHE SpA 20 March 1970 [24 March 1969] 13463/70 Heading G5R As a cassette 21 is inserted, in direction A, a plate 23 pivoted at 24 moves up, so that two reel drive pins 50, (51) and a tape drive capstan (34, Fig. 1, not shown) enter the cassette. The movable plate 23 also carries a motor (30) a drive mechanism for the capstan and reel drive pins, and pins (110, Fig. 10, not shown) which secure the cassette in position. Insertion.-As the cassette is moved in direction A, it pushes back an upper slide 79, which in turn pushes back a pin 73 attached to a lower slide 69. The slide 69 acts through a spring 68 to urge arms 62, 60 to rotate and raise the plate 23. At the end of travel of the cassette, part 69b of the slide 69 releases an arm 65 thus enabling the plate 23 to rise. When the plate 23 rises it moves a lever (97, Fig. 6, not shown) which releases a spring-biased pinch roller (54) to press the tape against the drive capstan (34, Fig. 2, not shown). At this stage the pin 73 is held by a latch lever 74. Manual control.-A control lever (44, Figs. 1 and 8, not shown) moves the drive pulleys for the various drive modes. The pin 73 can be released from the latch lever 74 by the control lever so that the lower slide 69 moves down under spring action and the cassette is ejected. Automatic ejection.-The increase in tape tension when the tape (attached to the reel hubs) runs out causes a tape tension sensor (53, Fig. 12, not shown) to initiate a release procedure powered by the angular momentum of the flywheel 33 of the tape drive capstan as described in Specification 1,269,269.
Patent GB-256725-A (GB)
Title: Improvements in or relating to electric locomotives
IPC: B61C9/38
Filed: 1925-05-23
Abstract: 256,725. Booth, A. W., and Cuppleditch, C. D. May 23, 1925. Gas exits for battery boxes for electric vehicles for use in mines. To minimize risk of explosion spaced gauzes 24 having apertures to correspond with apertures in the cover plate 23 are secured to the plate 23. A plate 26 is held down over the apertures by springs 26a.
Patent GB-134971-A (GB)
IPC: F21V33/00
Abstract: 134,971. Railing, M. J., and Roberts, H. W. Nov. 23, 1918. Electroliors.-A basin a containing electric lamps has arranged above it a. reflector b, and, below it a motor d and fan e. When the fan is not required, it can be removed with the motor by being unscrewed, and be replaced by an ornamental fitting, without interfering with the lamp.
Patent GB-1309921-A (GB)
Title: Automatic lathe
IPC: B23Q7/04
Filed: 1970-03-20
Abstract: 1309921 Automatic lathes CONVER MASCHINENBAU GmbH 20 March 1970 [21 March 1969] 13520/70 Headings B3B B3C and B3T In an automatic lathe having a plurality of machining heads 14, 22, 28, 30 and 46 by which turning and other machining operations such as boring, screwing and milling may be effected on workpieces produced from bar stock, means is provided to clamp the workpieces in stationary work-holders 20 and 38 positioned relative to the machining heads and for transferring the workpieces between the heads to permit the various machining operations to be carried out in sequence. The stationary work-holders 20 and 38 include jaws which are actuable by a wedge 86 operated by a cam and lever mechanism 74, 76, 78, 80 and the transfer of workpieces from the work-holder 20 to work-holder 38 and between work-holders 38 and 46 is effected by swinging arms 52 and 56 respectively which are actuated by cam and lever 60, 62, 64 and rack and pinion 70, 72. A rotary tool head effects the initial turning operation on a workpiece supplied in the form of bar stock to the tool head 14 by conveying means 16. The turning operation, subsequent machining operations and transfer of workpieces is effected in a predetermined controlled sequence. The stationary workholders grip the successive workpieces in a manner which permits accessibility to each end of a workpiece by the tools of two machining heads.