baber/WOPTO huggingface dataset:
Patent GB-1481188-A (GB)
Title: Thermographic copying
IPC: G03B27/30
Filed: 1974-12-16
Abstract: 1481188 Copying apparatus using heatsensitive material XEROX CORP 16 Dec 1974 [2 Jan 1974] 54189/74 Heading G2A In a method or apparatus using a radiant source 26 which emits substantially more infrared light than visible light in thermographically copying an original which principally absorbs visible light, means 58 including a dichroic filter focuses light from source 26 to an imaging station, the filter being selected to prevent part of the infrared light from source 26 from reaching the imaging station without materially attenuating the visible light. As shown, a heat-sensitive sheet 12 and an original 10 are fed together in contact into a guideway 4 up to the nip 27 between rollers 16, 18. When the apparatus is switched on, the roller 18 is driven and in turn drives a conveyer belt 22 and idler rollers 16, 20 so that sheet 12 and original 12 are fed to a transparent rotating cylinder 24. Cylinder 24 contains a tungsten lamp 26, and a dichroic filter-reflector 58 so shaped and constituted that visible light from the lamp passes to the imaging station. The cylinder 24 also contains a filterreflector 56, so shaped and constituted that it reflects visible light to a focus at the transfer station. Normally the copy, e.g. a signed letter, carries images which absorb infrared radiation strongly (such as typed characters) and images which absorbs light in the visible region of the spectrum (such as signatures in ink). Tungsten light normally has a preponderance (85-95%) of infrared radiation, and consequently the infrared ray absorbing images register much more strongly than the visible light absorbing images. The apparatus described above reduces the infrared component in the light passing to the heatsensitive layer 12 to the original 10. The layer 12 is made tacky imagewise by the incident radiation. A vacuum device 28 separates the original 10 from the layer 12, and the original is carried by a transport mechanism 34 to duct 6 and out of the apparatus.  The heat-sensitive layer 12 moves round a guide 41 and the tacky image is developed by powder 36 applied by a rotating magnetic brush 38. The powder sticks to the tacky areas and may be fused on; but in the Example shown the developed sheet passes to the guide 44, whereupon rollers 42 are driven to grip a sheet 14 of copy paper, which meets the developed sheet 12 and both sheets are gripped between the roller 24 and a roller 52 near a printing station, illuminated partly by infrared radiation, as described above. The heat causes transfer of the powder to the copy sheet. The sheets are carried by conveyer belt 48 to the outlet 8 and delivered to the outside of the apparatus, where they are separated by hand. Alternatively, the developed image may be fused on to the heatsensitive sheet. The apparatus may be used with an automatic paper-feeder.
Patent GB-1201155-A (GB)
Title: Panelling
Inventor: HARDING BRIAN
IPC: E04B2/56
Filed: 1966-10-31
Abstract: 1,201,155. Partitions. METAL SECTIONS Ltd. 31 Oct., 1967 [31 Oct., 1966; 5 Dec., 1966], Nos. 48684/66 and 54254/66. Heading E1W. Partition panels 10 are attached to floor plates (Figs. 1, 4, not shown), columns 23, or similar panels (Fig. 3, not shown), by nuts and bolts, e.g. 27 and 26, the nuts, or the heads of the bolts (as shown) being located in undercut channel-sectioned members 25 fixed to the floor, column, or a similar member respectively, and the co-operating element being at least partly located in a space 12 formed near the edge of the panel. The panels, which are described and claimed in the co-pending Specification No. 1,115,871 are formed with a removable facing sheet 13 to gain access to sheet metal boxes 12 forming the spaces therein. A square nut 21 non-rotatably mounted in a channel 18 (Fig. 1) fixed to a floor is forced upwards by a spring clip 22. As shown, the bolts 26 have square heads so as to be non- rotatable in the channels 25, into which they are slid from one end. In the embodiments of Figs. 3-5, bolts which transversely elongate rectangular heads are employed, the heads being insertable transversely into the channels and rotated through an angle of less than 90‹ by the nuts, whereafter the nuts can be tightened.
Patent GB-1446228-A (GB)
Title: Stabilizers for drill strings
IPC: E21B17/10
Filed: 1973-11-23
Abstract: 1446228 Boring earth &c OIL PATCH INDUSTRIES Ltd 23 Nov 1973 [26 Feb 1973] 54416/73 Heading E1F A drill pipe stabilizer comprises an inner elastic or plastics body 5 adapted to slide on the pipe, and an outer rigid or steel body 3 having ribs 2, the bodies being detachably connected.
Patent GB-1174438-A (GB)
Title: Method and Apparatus for Determining the relative Volume of Crystalline Solids in a Crystalline Solution.
Inventor: ONNA KENNETH MITSUJI
IPC: G01N33/14
Filed: 1967-11-30
Abstract: 1,174,438. Measuring relative volume of crystals electrically. HAWAIIAN DEVELOPMENT CO. Ltd. Nov.30, 1967 [Dec.7, 1966], No.54542/67. Heading G1N. The relative volume of electrically non-conductive particles, e.g. sugar crystals, in a conductive liquid is measured by comparing the specific resistance of the solution measured by two electrodes spaced apart by more than the average spacing of the particles, so as to include between them a plurality of crystals, and by two electrodes spaced apart by less than the average spacing of the particles so as to include at the most one crystal. Construction of electrodes The closely spaced electrodes may take the form of a straight glass tube 16, Fig.3, provided with a pointed lower end at which the end 10 of a conductor 30, running through the tube, is exposed to form one electrode. Aligned with the tube 16 is an upwardly directed pointed end of a second J-shaped glass tube 22 having at the pointed end the exposed end 14 of a conductor 32 forming the second electrode. The tube 16 is slidably mounted in a block 24 on tube 22 whereby the spacing of the electrodes may be adjusted. Alternatively the electrodes may be formed by a pair of parallel metal sheets (36, 38, Fig. 4, not shown), separated by an insulating film (46) whose thickness determines the separation of the edges of the plates. The measuring electrodes may be similarly shaped, (Fig. 5), with the electrodes themselves formed by metal discs 6, 8, at the adjacent ends of insulating tubes 48, 54. The tube 54 is, as before, slidable relative to the tube 48 so that the spacing between the electrodes may be adjusted. The spacing of the pairs of electrodes are calculated from a knowledge of the crystal dimensions and the range of relative volumes under consideration. The electrode pairs are arranged in a pipe through which the solution is flowing to provide a continuous indication of the relative volume of the particles. Measurements The electrodes may be connected in an A.C. energized bridge, Fig.6 (not shown), balanced for a particular relative volume. Alternatively the electrodes may be connected alternately to an A.C. supply provided with an ammeter in series and a voltmeter in parallel with the electrodes, Fig.7 (not shown).
Patent GB-1411581-A (GB)
Title: Explosive welding
IPC: B23K20/08
Filed: 1972-11-30
Abstract: 1411581 Explosive welding device NATIONAL AERONAUTICS and SPACE ADMINISTRATION 30 Nov 1972 [14 Sept 1972] 55429/72 Heading F3A [Also in Division B3] An explosive welding device for transmitting explosive pressure to the workpieces to be welded comprises an enclosure having a wall attachable to one of the workpieces, an explosive totally enclosed inside the enclosure in close proximity to the enclosure wall, the enclosure being such as to totally confine the explosion and products and debris thereof, and a detonator attached to the enclosure. For welding an upper sheet 14 of 0.04 inch aluminium to a lower sheet 12 of 0À25 inch aluminium, the sheet 12 is supported on an anvil 11, aluminium separators 13 are arranged on each side of the weld area 10 and a flattened steel tube 16 containing explosive 17 is attached to the sheet 14 by strips 19 of masking tape with interposed silicone grease 15. The flattened steel tube 16 encloses a ribbon of lead sheathed RDX explosive with a silicone filler strip 18 to hold the ribbon in contact with the lower side wall of the tube. An end cap is welded to one end of the tube 16 and a steel housing 21 is welded to the other end with aluminium members 23, 24 to protect the weld joint 22 from the explosive shock. A detonator cartridge 26 screwed into the housing 21 is detonated, by supplying current to pins 29, which in turn detonates the explosive 17, the explosion travelling along its length at 26,000 ft/sec. Small containers may enclose the explosive for spot welding and for seam welding a second enclosure may be applied to one workpiece instead of using the anvil. The silicone rubber filler may be entirely removed or provided with a triangular undercut to reflect back the shockwave.
Patent GB-1147516-A (GB)
Title: Centrifugal hammer
Inventor: COMPAGNONI ANTHONY FRED
IPC: B02C13/28
Filed: 1966-12-13
Abstract: 1,147,516. Hammer mills. ABEX CORP. 13 Dec., 1966, No. 55851/66. Heading B2A. A hammer, Fig. 2, for a hammer mill comprises a shank 16 with a 'replaceable head 18 secured to its outward end. The head has an opening leading to a cavity 31. The end of the shank is insertable into the opening and beneath shoulders 33 in the cavity. An insert or inserts is or are positioned between the shoulders 33 and the shank end to lock the head and shank. One end of the shank may have an arcuate surface, 'the shoulders and insert being complemental, and the insert may be bolted to the shank. The inserts 32, Fig. 2, may have toes to engage the concave complementary surfaces 50 on the shank 16. The toes are disposed in complementary shaped openings in side walls 68, 69 Fig. 2, of the head 18. A second embodiment uses a single insert 80, Fig. 9, with a shank 16A having a lower, flared, thickened portion 82 having toes which are inserted into openings 58, 59 on one side of the head. Alternatively, a single toe or more than two toes may be used. In further embodiments, bearing .surfaces 147, 148, Fig. 12, on the shank 116 and on the 'head 118 are curved in generally concentric relationship to the curvature of .the bottom wall 110 of the head 118, thus providing a larger area between the shank and head to distribute impact forces of the head 118 and provide a more uniform thickness of metal in the head and thus longer life. The hammers are secured to a rotor (not shown) having a plurality of spaced shafts, about its peryphary. The rotor operates in a housing having walls lined with breaker bars. The hammer shank and head may be of manganese steel.
Patent GB-1418677-A (GB)
Title: Method of drawing wire and apparatus therefor
IPC: B21C1/00
Filed: 1972-12-11
Abstract: 1418677 Drawing OKI DENSEN KK 11 Dec 1972 [4 July 1972] 56961/72 Heading B3P A wire 10 is drawn vertically through a freely movable die assembly 14, 18 which is subjected by fluid pressure to a vertical fluid force and to a vertical drawing force, at least one of which is opposed to the force of gravity acting on the die assembly 14, 18 and has a magnitude sufficient to keep the die assembly freely floating. In one embodiment, Fig. 1a, the die 14 is mounted in a die block 18 positioned above a fixed, fluid circulation chamber 22 having apertures 28 in a top wall 26. Fluid is introduced into the chamber 22 through a conduit 38 so that it is discharged through the apertures 28 to cause the die block 18 to float over the chamber 22 thereby allowing the die block 18 to move horizontally should misalignment occur between the die axis and the wire rod 10 to be drawn or the drawn wire 12. When the wire is drawn upwardly through the die 14, a suction is produced between the chamber wall 26 and the die block 18. In another embodiment (Figs. 3a, 3b, not shown), the wire is drawn upwardly through the die 14 in the die clock 18 secured to a die holder (40) which is caused to float below the chamber 22 by the pressure of lubricating oil discharged from the apertures 28. The bottom wall 26 of the chamber 22 is provided with a circular channel (48) and communicating radial channels (50) to prevent the oil contacting the drawn wire. The wire to be drawn is passed through oil (52<SP>1</SP>) which has fallen from the die holder (40). Alternatively, the die block 18 may be mounted for horizontal movement in a cavity (56) (Figs. 4a, 4b, not shown) of the die holder (54) which is positioned above the fluid circulation chamber 22. The wire may be drawn upwardly or downwardly through the die in this embodiment. In a further embodiment Fig. 5, the die block 18 carrying the die 14 is mounted by a retainer 66 on a foamed plastics die holder 60 which floats on a liquid 80, e.g. lubricating oil, introduced into a vessel 70 through a conduit 78. When the wire is drawn upwardly through a guide piece 72 towards the die 14, lubricating oil is applied to the surface of the wire by a meshed member 76, e.g. cloth. The wire may alternatively be pulled downwardly through the die 14.
Patent GB-1326851-A (GB)
Title: Automatic reversal device for textile wet treatment apparatus
IPC: D06B3/28
Filed: 1971-12-10
Abstract: 1326851 Treating endless webs ARGELICH TERMES Y Ca 10 Dec 1971 [16 June 1971] 57585/71 Heading D1L An automatic revereal device for apparatus for the treatment of endless lengths of cloth in rope form of the type having a treatment vessel, a liquid circulation pump, liquid jets for circulating the endless rope and means for controlling the flow of circulating liquid in the vessel comprises guide rollers 103, 104, having shafts 106, 107 for the cloth positioned in the treatment vessel I (Figs. 2 and 4), an electrical generator 108 driven by rotating guide roller shaft 106, indicator means 109 in the form of a voltmeter and calibrated dial 110 to register directly the speed of the cloth through the apparatus, a timed relay 114 operable in response to signal derived from the indicator 109 when needle 111 contacts terminal 112 (i.e. at low cloth speeds) and switches on circuit 113, and two solenoid valves 119, 120 controlled by relay 114 and associated respectively with controls 124, 125 of valves 126, 127 which regulate the flow of treating liquid to the upward and downward liquid jets (not shown) housed in the treatment vessel and with electro-pneumatic piston 122 connected via pivotable connecting rods to the shaft 107 of swinging roller 104 of the guide means. In operation cloth in rope form is passed by force of liquid flowing from the jet means in the vessel through and in contact with guide rollers 103 and 104. When the speed of the cloth (and hence roller 103) reaches a minimum value due to for example, snaring of the cloth in some part of the apparatus needle 111 contacts terminal 112 and switches on the circuit of solenoid valves 119, 120. These cause the simultaneous operation of valve 121 which reverses the direction of jetting of the liquid and valve 122 which causes roller 104 to swing away from and out of contact with the cloth 105 (see dotted line 143 in Fig. 4). The direction of travel of cloth 105 and the jetted treatment liquid is thus reversed until after a perdetermined time interval timed relay 114 operates automatically on switch 115 to cut off the current to the solenoids 119, 120 and automically cause the pistons 121 and 122 to revert to their original position and thus reestablishes normal circulation of the cloth through the apparatus.
Patent GB-1299715-A (GB)
Title: Combination of transistor inverter circuit and electric motor
IPC: H02M3/338
Filed: 1969-11-26
Abstract: 1299715 Battery charging systems for small electric apparatus; control of motors SCHICK Inc 26 Nov 1969 [28 March 1969] 57880/69 Headings H2H and H2J [Also in Division H3] A transistor inverter includes a coil 23 in the emitter-collector circuit and a coil 24 in the base-emitter circuit, a current flow initiated in the base-emitter circuit causes a current flow in the collector-emitter circuit and flux generated in coil 23 induces a first voltage in the coil 24 which increases the current flowing in the collector-emitter circuit to a predetermined substantially constant level such that the flux begins to decrease causing reversal in polarity of the first voltage and cut off of the transistor 22 and a rectifier 31 and a D.C. motor 16 are supplied by current generated by the voltage developed across the coil 24. The restriction of the collector-emitter current of transistor 22 to a constant level may be caused by saturation of a saturable core on which the coil 23 is wound or by saturation of the transistor. A resistor 32 is connected in series between the rectifier output and a battery 15 for providing a low charging current. The resistor 32 is then shorted by closing switches 11, 12 to provide a higher current output when driving the motor 16. The motor 16 may be driven from the battery 15 alone with switches 11, 12 closed and the A.C. supply at 13, 14 disconnected. A neon lamp 20 indicates when the A.C. supply is connected. A diode 30 blocks the flow of bias current through the coil 24 in the base circuit and enables better starting of the inverter. A capacitor 29 provides a low impedance path at H.F. to speed up switching of the transistor 22 and the resistor 26 stabilizes the transistor gain. Specifications 1,299,716, 1,299,717 and 1,299,718 are referred to.
Patent GB-1489057-A (GB)
Title: Blind rivetting tools
IPC: B21J15/06
Filed: 1973-12-15
Abstract: 1489057 Riveting GKN SCREWS & FASTENERS Ltd 6 Dec 1974 [15 Dec 1973] 58228/73 Heading B3U A blind reveting tool includes means operated by the operating mechanism of the tool for causing air to flow through a passageway 26 extending from a nose 10 immediately after setting of the rivet to propel the broken off mandrel along the passageway 26 away from the nose 10. The mandrel gripping jaws 25 of the tool are rearwardly movable by an hydraulic piston 23 which is in turn movable by a pneumatic piston 17 when a trigger 12 is depressed. When a rivet has been set, the trigger 12 is released, causing a supply of compressed air to the cylinder 18 of the piston 17 to be shut off, resulting in the return of pistons 17, 23. The top of the cylinder 18 communicates with the passageway 26 via a passageway 34, ports 35 and a removable vessel 28 so that during the return movement of the piston 17, a suction is created in the passageway 26 causing the broken off mandrel to be drawn into the vessel 28. Alternatively the mandrel can be moved along the passageway 26 by directing an air jet into a Venturi within the passageway 26.
Patent GB-1467643-A (GB)
Title: Method of mounting photographs on canvas or other sheet  material
IPC: B44F11/02
Filed: 1973-12-17
Abstract: 1467643 Mounting photographs on canvas &c. P ADDISON 17 March 1975 [17 Dec 1973] 58240/73 Heading A4X [Also in Division B6]  A method of mounting an enlarged photograph, e.g. a colour print, comprising a layer of emulsion on a paper backing, on canvas or other sheet material comprises: applying and securing by adhesive a film of transparent plastics material to the emulsion layer; bonding the film to the photograph by heat and pressure; removing substantially all the backing paper mechanically to leave a laminate of the emulsion layer and the film; applying and securing by adhesive the emulsion face of the laminate to a piece of canvas &c. bonding the laminate to the canvas by heat and pressure; and brushing substantially clear oil paint on to the film to leave visible brush strokes. The plastics film, e.g. cellulose acetate, is pricked at 1" spacings before it is applied to the photograph and the film is bonded to the photograph in a press at a temperature of between 80‹C and 90‹C for 2 to 3 minutes. A resin coating on the face of the paper backing remote from the emulsion layer is peeled off and the photograph is soaked in warm water containing detergent to soften the paper backing, which is thereafter peeled off and then the emulsion face is scraped or abraded. The laminate is then dried and secured to the canvas by either a further cellulose acetate film interposed between the laminate and canvas and pre-coated on both sides with adhesive and pricked at 1" spacings, or a layer of liquid acetate adhesive. The laminate is bonded to the canvas in a press at a temperature of between 80‹C and 120‹C for 2 to 3 minutes. The bonded laminate and canvas are mounted on a wooden frame stretcher. The presses used comprise a board and a foam rubber sheet.
Patent GB-1246007-A (GB)
Title: Process for dyeing and printing shaped materials of polymers or copolymers of acrylonitrile or as.-dicyanoethylene or of acid-modified aromatic esters
IPC: C09B11/22
Filed: 1969-11-28
Abstract: 1,246,007. Dyeing polyacrylonitrile and polyester materials. FARBENFABRIKEN BAYER A.G. 28 Nov., 1969 [28 Nov., 1968 (3); 29 Nov., 1968 (2)], No. 58362/69. Heading D1B. [Also in Division C3] Polymers or copolymers of acrylonitrile or asymetrical dicyanoethylene or of acid-modified aromatic polyesters are dyed or printed with triaryl-methane dyes free from sulphonic acid and carboxylic acid groups and which are of formula in which R is an alkyl, aralkyl, cycloalkyl or aryl radical, R 1  is hydrogen or an alkyl, aralkyl or cycloalkyl radical, R 2  is an alkyl, aralkyl, cycloalkyl, or aryl radical, R 1  and R 2  together with the nitrogen atom may form a saturated or unsaturated 5- or 6-membered heterocyclic ring, or R 1  or R 2  together with a carbon atom in the o-position in the ring A may form a heterocyclic ring, R 3  is hydrogen or an alkyl, alkoxy, aralkyl, aryl, aralkoxy aryloxy, alkylmercapto or arylmercapto radical, halogen, a carboxylic acid ester, carbonamide, sulphonamide, cyano, nitro, alkylsulphonyl, aralkylsulphenyl, arylsulphonyl, or acyl group, X is an anion with sulphonic acid or carboxylic acid groups present in rings A, B and D. Conventional methods of dyeing and printing are employed.
Patent GB-1338232-A (GB)
Title: Magnetic card and method of making and magnetizing the same
IPC: G06K19/12
Filed: 1970-12-09
Abstract: 1338232 Credit cards &c. W W BARNEY 9 Dec 1970 [20 July 1970] 58411/71 Heading B6A [Also in Division G4] A credit card having a sheet of magnetic material distributed throughout a plastics material base is magnetized to form a plurality of first portions which may be irregular in size and shape as shown, or which may form a regular pattern or matrix, and a plurality of second portions, superimposed on the first, are magnetized along lines perpendicular to the card faces with polarities in accordance with a predetermined code. The second portions may be circular as shown or rectangular, may be irregularly spaced, and may span adjacent first portions of opposite polarities or may be entirely within the boundaries of some of the first portions of like or opposite polarity.