baber/WOPTO huggingface dataset:
Patent GB-896887-A (GB)
Title: Improvements in or relating to the heating of molten metal during degasification thereof
IPC: C21C7/10
Filed: 1958-11-26
Abstract: 896,887. Degasifying molten metal. HERAEUS G.m.b.H., W. C. Nov. 26, 1958 [Nov. 26, 1957], No. 38119/58. Class 72. A method of heating molten metal during degasifying in which the metal passes from a container to a vacuum chamber and returns to the container by a different path comprises heating the metal by an induced electric current as it passes from the vacuum chamber to the container. As shown, molten metal passes from a container 1 through a leg 6, aided by a gas lift, into a vacuum chamber 11, where alloying materials may be added from a device 9, and returns to the container 1 through a leg 7 which may be surrounded by a transformer core 12 carrying a primary coil 13. The degasification may be controlled by the fluctuations in the primary current, the rate of flow of metal being varied by raising or lowering the vacuum chamber, by varying the amount of gas used in the gas lift, or by altering the vacuum pressure. Specification 837,587 is referred to.
Patent GB-983653-A (GB)
Title: Improvements in or relating to roadways
Inventor: NEEDHAM FREDERICK HAROLD
IPC: E01D19/06
Filed: 1962-10-09
Abstract: 983,653. Elevated roadways. BRITISH IRON & STEEL RESEARCH ASSOCIATION. Jan. 8, 1964 [Oct. 9, 1962], No. 38160/62. Heading E1G. An elevated roadway is formed of a succession of box girders 11 joined end to end and supported on tubular steel trestles 12. The box girders have internal diaphragm 14 and inverted T stiffeners and one of a width to allow the vehicle wheel load to pass through the vertical sides. Stepped cantilever projections 13 provide for kerb and pavement and may be enclosed by plates 28, a safety rail being provided at the edges. The tubular trestles 12 may have upper 20 and lower 17 telescopic legs and a telescopic cross piece 18, 19 which are finally secured together in a desired configuration. The box girders are supported from the trestles through a steel-rubber sandwich with the lower ends spaced for expansion; the upper ends being joined by an expansion joint having a rubber tube 39 and plastic filler 40 between angles 37, 38 secured to the box girders. Two or more carriageways may be formed by a number of box girders side-by-side joined by a shallow box decking. In other embodiments the trestles may be of Y-shape and non-telescopic or may have no cross-piece 21. The roadway may be surfaced with epoxy resin with embedded calcined bauxite or martic asphalt and services may be carried in the box girders.
Patent GB-1313563-A (GB)
Title: Photo-electric scanning apparatus for detecting code markings
IPC: G11B7/1381
Filed: 1970-08-07
Abstract: 1313563 Detecting code markings photoelectrically CIBA-GEIGY Ltd 7 Aug 1970 [12 Aug 1969] 38264/70 Heading G1A [Also in Division G2] Coloured code rings 6a-d on ampoules 5a-b travelling continuously past a scanning head 1 are read by illuminating the paths 7a-d along which the marks travel with separate light beams and employing a plurality of optical systems, each including lenses 10 and a light guide 14-17, to direct the light reflected from the different code rings to a detector arrangement, Fig. 4 (not shown) which produces output signals representative of the different ring colours. The light beams are derived from a halogen filament lamp using a plurality of light guides 18-21. Both the illuminating light guides and the reflected light guides 14-17 are mounted in staggered relationship relative to the path of movement of the ampoules so that the markings fall sequentially within the field of the optical systems. Light from the combined bundle 1/2 is led to the detector arrangement where two dichroic filters (40, 41) direct the blue, green and red components to separate photo-cells (42, 44), each having a narrow pass band filter. Each lens combination 10 in the scanning head may be replaced by a telecentric system, Fig. 6 (not shown) in which a limiting aperture is placed between the two lenses at their common focus.
Patent GB-895193-A (GB)
Title: Production of formaldehyde polymers and formaldehyde solutions
IPC: C08G2/08
Filed: 1960-11-08
Abstract: Solid formaldehyde polymers are prepared by introducing into a concentrated aqueous solution of formaldehyde, the pH of which has been adjusted to from 9 to 10, 20 to 75% of a formaldehyde polymer (based on the formaldehyde present in the solution), keeping the temperature of the mixture at from 20 to 40 DEG C. to polymerize the formaldehyde and then separating the solid polymer from the aqueous solution obtained which has a formaldehyde content of from 29 to 40%. A part of the solid polymer formed may be used as the added polymer. Caustic potash may be used to adjust the pH.  Apparatus for carrying out the process, which may be continuous or discontinuous is described.
Patent GB-906137-A (GB)
Title: Truing mechanism for a grinding wheel
IPC: B24B53/065
Filed: 1960-11-09
Abstract: 906,137. Selsyn systems. CINCINNATI MILLING MACHINE CO. Nov. 9, 1960 [Feb. 19, 1960], No. 38437/60. Class 40 (1). [Also in Groups XXIII and XXIX] A servo - valve SAV (Group XXIX) controlling an hydraulic motor M1 driving a moving part of a machine for trueing grinding wheels (Group XXIII) has coils 151, 152 supplied with amplified voltage from a receiver TA connectible to one or the other of transmitters XSA, XHA of a synchro-set SA. When transmitter XSA, which has a rotor adjustable to a selected position, is connected to the receiver, the output from the receiver is amplified and fed to the coils to adjust the servovalve controlling the motor which is also connected to the receiver so that as the moving part reaches its selected position the output from the receiver reaches a null and the motor stops. The transmitter XSA can be disconnected from, and the transmitter XHA connected to, the receiver TA to return the motor and part to their original positions. The motor and part can be driven in the opposite direction from the original position by reversing the connections between the transmitter XSA and receiver TA. Another part of the machine can be driven by a second motor M2 having a servo-valve SBV controlled in a similar manner by receivers TB, TC actuated by synchro-sets SB, SC which provide a coarse and fine control of the motor and part.
Patent GB-1246367-A (GB)
Title: Improvements in or relating to stamping presses or machines
Inventor: MOHRBACH ERNST
IPC: A43D8/04
Filed: 1969-07-31
Abstract: 1,246,367. Cutting-out presses. E. MOHRBACH. 31 July, 1969 [31 July, 1968], No. 38456/69. Heading B4B. A cutting-out press, e.g. for stamping insole blanks from sheet or web material comprises a resiliently mounted table 4 for supporting the material below a punch 3 and having an aperture through which a knife blade 5 projects so that, upon actuation of the press, the blank falls by gravity through the aperture. The table 4 is formed from three parts 13, 14, 15 which are supported on springs 16, 20, the parts 13, 14, together with the knives 5, being mounted on plates 17; the plates are adjustably mounted in guides 18 secured to the frame of the press. The table part 15 is mounted on the springs 20 supported on the frame and adapted to cooperate with a material clamping piston 30 carried by the punch 3. The punch is provided with a wear plate 21, e.g. of plastics material mounted on a slide plate 35 which is linearly movable in guides 44, Fig. 3, by means of an hydraulic ram 34; the plate 35 is attached to a second plate 36 which is rotatable via guides 45, Fig. 6, around the punch 3 by means of a second ram 37. The material is intermittently fed over the table by means of a gripper 22, Fig. 7, which is reciprocated by means of a hollow piston-rod 23 of an hydraulic actuator and rotated via a rod 42 connected to a further actuator (33, Fig. 5); the gripper mechanism is adjustably mounted on a slide in order to suit different width material. The cut-out blanks fall through the knives 5 on to conveyers 9 which, via a deflector plate 10, Fig. 1, causes the blanks to fall on to a stepped portion (53, Fig. 9) of an inclined plate (51); the stepped portion is connected via a part (54) to an extension support plate (55). A gripping member (57) is pivoted on one end of a lever (58) and arranged to pass through a slot formed in the plate (51); the other end of the lever is pivoted on a bracket 59. By suitable actuation of rams (60), (61), the member 57 transfers the blanks one at a time from the step 53 to the support plate 55.
Patent GB-332175-A (GB)
Title: Improvements in spark plugs
IPC: F02F1/24
Filed: 1929-12-16
Abstract: 332,175. A.C. Spark Plug Co. Oct. 10, 1929, [Convention date]. Sparking-plugs.-The end 4 of the casing is tapered for engaging a corresponding seating in the cylinder wall. In a modification, Fig. 3, the end of the plug casing is clamped against a flange 21 projecting from the cylinder wall. Washers 24, 13 are interposed.
Patent GB-1395958-A (GB)
Title: Process and composition for developing silver halide photo- lithographic material
IPC: G03C5/29
Filed: 1972-08-17
Abstract: 1395958 Developer compositions FUJI PHOTO FILM CO Ltd 17 Aug 1972 [21 Aug 1971] 38515/72 Heading G2C A viscous, infectious developer composition for silver halide photographic materials comprises at least one dihydroxybenzene as the only silver halide developing agent, an alkali e.g. NaOH, a sulphite, a sulphite ion buffer and an additive which increases the viscosity of the composition to at least 1000 cps at 25‹C. The viscosity increasing additive may be carboxymethyl cellulose, hydroxyethyl cellulose, sodium alginate, methyl cellulose, polyvinyl alcohol or a copolymer of methylvinyl ether and maleic anhydride. The developing agent is preferably hydroquinone but may be hydroquinone substituted by Cl, Br, CH 3  or isopropyl . The buffer is an adduct of an aldehyde or a ketone and an alkali metal bisulphite, or is a condensation product of an amine and a carbonyl bisulphite. The silver halide material preferably contains more than 50% silver chloride, and the developer composition may either be spread directly on to the surface of the material from a nozzle or alternatively it may be spread on to a support and subsequently brought into contact with the silver halide material.
Patent GB-841915-A (GB)
Title: Azetidinones and the preparation thereof
Inventor: TESTA EMILIO
IPC: C07D205/08
Filed: 1957-12-11
Abstract: The invention comprises compounds of the general formula <FORM:0841915/IV(b)/1> wherein R and R1 are the same or different and represent alkyl radicals containing at most 8 carbon atoms or dialkylaminoalkyl, aryl, aralkyl or cycloalkyl radicals and R2 is hydrogen or an alkyl radical of at most 8 carbon atoms, provided that one of R1 and R2 is a dialkylaminoalkyl radical when R2 is hydrogen; and the preparation of all the above compounds and of the compounds claimed in Specification 829,663 by reacting one mole of an amino ester of the formula <FORM:0841915/IV(b)/2> with two to four moles of an alkyl magnesium halide in an anhydrous organic solvent such as benzene or ether or mixtures thereof at a temperature between 0 DEG and 5 DEG C. for one to eight hours.  Examples describe the preparation of compounds of the above general formula wherein R, R1 and R2 have the following values : .R.R1.R2 .phenyl.ethyl.hydrogen .phenyl.n-propyl.hydrogen .phenyl.iso-propyl.hydrogen .ethyl.ethyl.hydrogen .phenyl.phenyl.hydrogen .phenyl.methyl.hydrogen .phenyl.iso-butyl.hydrogen .phenyl.cyclohexyl.hydrogen .phenyl.benzyl.hydrogen .ethyl.benzyl.hydrogen .phenyl.3-(dimethyl-.hydrogen ..lamino)-propyl.hydrogen .phenyl.ethyl.methyl The optically active isomers of the first of the above named compounds are also prepared from the optical antipodes of ethyl alpha-phenyl alpha-aminomethyl butyrate, these being prepared by resolution of the DL-compound using D-dibenzoyl tartaric acid. Ethyl alpha - phenyl - alpha - methylamino-methyl butyrate is prepared by methylation of ethyl alpha-phenyl-alpha-aminomethyl butyrate with formic acid and formaldehyde.  Ethyl alpha - aminomethyl - alpha - phenyl-delta-dimethylaminovalerate is prepared by condensing ethyl alpha-cyano-alpha-phenyl acetate with 3-dimethylamino-1-chloro-propane and reducing the ethyl alpha-cyano-alpha-phenyl-delta-dimethylaminovalerate so formed.
Patent GB-1147690-A (GB)
Title: Improvements in or relating to electric rotary devices such as switches or potentiometers
Inventor: ELLIOTT KENNETH FREDERICK
IPC: H01H51/08
Filed: 1966-08-30
Abstract: 1,147,690. Electromagnetic selectors; potentiometers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 16 June, 1967 [30 Aug., 1966], No. 38631/66. Headings H1N and H1S. A rotary switch (Fig. 1) or potentiometer (Fig. 6) has a moving contact member comprising a resiliently flexible wire 5 (or 37) of beryllium copper, for example, which is fixed to the casing at one end and has a free end 5b (or 37b) movable, by virtue of the flexibility, over fixed contact positions arranged in a circle having its axis coinciding in position and direction with the contact member at its fixed end. Electromagnetic selector.-In the switching embodiment (Fig. 1) the fixed contacts comprise hard drawn silver wires 6 with bent ends 6a (angled as in Fig. 2, not shown). Slots 4c between adjacent sawteeth 4b arranged as an annulus locate the moving contact 5b in engagement with respective fixed contacts 6a. Sawteeth 7a on a reciprocable member 7 are concentric with teeth 4b but angularly misaligned such that lifting of member 7 by a plunger 9 when a solenoid 12 is energized and restoration by spring 15 when the solenoid is de-energized causes the moving contact 5b to be stepped (Figs. 3a and 3b, not shown) into the next slot 4c. Rotation of teeth 7a is prevented by a radial peg 19 on plunger 9 sliding in a slot 20. In a modified construction (Figs. 4 and 5, not shown) rotation of member 7 is prevented by mating key-and-slot surfaces, and the connections to the contacts and solenoid are all brought out at the lower end of the device. The fixed contacts may comprise a printed-circuit board instead of wires. Potentiometer.-In the embodiment of Fig. 6 a toroidal winding 30 of resistance wire is wound on a former ring 31 and the end 37b of flexible wire 37 is caused to wipe over the toroid by rotation of a cylindrical member 39 by means of a screwdriver slot 39a. The wire 37 is soldered to a fixed disc 38 and freely located in a parallel-sided slot (39b, Fig. 7, not shown) having a curved back wall 39c. Rotation may be limited or unlimited. A sealing ring 40 is squeezed between shoulders on the member 39 and casing 32.
Patent GB-1150820-A (GB)
Title: Methods Of Compressing Pre-Formed Articles
Inventor: BLECKMANN R
IPC: B30B11/00
Filed: 1967-08-23
Abstract: 1,150,820. Stamping. ELPAG AG CHUR. 23 Aug., 1967 [1 Sept., 1966], No. 38876/67. Heading B3Q. [Also in Division B5] Preformed articles, e.g. tubular heaters, are compressed isostatically by placing a number of them in a container 4, charging granular material, e.g. sand, steel balls &c., into the gaps between the articles and compressing the articles by pressure fluid. After charging the container with the articles and granular material it is placed in a cylindrical reinforced chamber 1 which is then housed within a reinforced frame 7 mounted on wheels 11 running on rails 12. High pressure oil is fed into the chamber by an oil pump 18 and feed pipe 14, and passes through openings in the container wall; a return pipe 13 leads oil to a sump. The granular material is supplied from a hopper (23), Fig. 2 (not shown), to the container mounted on a spring supported table (20) vibrated by a motor (21).
Patent GB-1322369-A (GB)
Title: Subsurface gallium arsenide schottkytype diode and method of fabricating same
IPC: H01L29/207
Filed: 1970-08-12
Abstract: 1322369 Semi-conductor devices VARIAN ASSOCIATES 12 Aug 1970 [13 Aug 1969] 38928/70 Heading H1K A Schottky diode comprises a substrate wafer 2 of gallium arsenide doped with silicon or tin bearing a metallic layer 3 of silver, zinc, indium, gallium and arsenic alloy and a gold germanium ohmic contact 4 on the opposed face. Gold layers 5, 6 overlay contact 4 and layer 3 for lead attachment, and the diode is of mesa shape formed by etching. In fabrication the wafer is cleaned chemically or by RF sputtering in an inert gas, and an alloy of silver indium and zinc is deposited by thermal evaporation (or sublimation or sputtering) on one face followed by an evaporated layer of gold and germanium of the opposite face. After heat treatment in dry hydrogen to form a subsurface Schottky junction between layer 3 and the wafer 2, gold layers are electrolytically applied, followed by etching through photoresist to a mesa shape and subdivision of the wafer into individual diode structures.
Patent GB-839428-A (GB)
Title: Improvements in and relating to musical toys
IPC: G10F1/06
Filed: 1958-12-03
Abstract: 839,428. Musical boxes. FISCHER, E., and NISSEN, H. W. Dec. 3, 1958 [Dec. 5, 1957], No. 38949/58. Class 88 (1). In a musical box the tune sheet consists of a belt 5, of paper, cardboard, fabric, rubber, plastic foil or the like, having a staff 5<1> printed thereon and pin-shaped members 6, which may be the male parts of pressstuds, secured thereto in the positions occupied by the notes 5<11> on the staff 51, and the axis of the driving roller 9 may be shifted vertically from the non-working position of Fig. 1 to the working position of Figs. 2, 3 so that in the former position the belt 5 may be moved backwards or forwards without the pins 6 striking the teeth of the comb 4, whereas in the latter position the driving roller 9 depresses the belt 5 between the parallel rollers 11 so that the pins 6 strike the teeth of the comb 4. The driving roller 9 is moved from the former to the latter position by moving the handle 16 from the position shown in Fig. 1 (handle 16 to the right) to that shown in Figs. 2, 3 (handle 16 to the left). This causes the crankshaft 15 to move the U-shaped member 13 clockwise about the pivots 13<1>, thus lowering the two sliding members 12 in the top parts of which the axle of roller 9 is journalled. The roller 9 is thus urged downwards between the rollers 11, subsequent movement of roller 9 to allow passage of the belt 5 between it and rollers 11 being possible through the resiliency of spiral spring 14 which connects the member 13 to the crankshaft 15.
Patent GB-1130382-A (GB)
Title: Improvements in or relating to machine tools
IPC: B23Q35/00
Filed: 1965-09-13
Abstract: 1,130,382. Copying machines. WERKZEUGMASCHINENFABRIK ADOLF WALDRICH. 13 Sept., 1965 [18 Sept., 1964], No. 38975/65. Headings B3B, B3D and B3L. In a copy-planing or copy-grinding machine, a template 13 controls an apparatus, including a motor 20, 21 (40) to move a slide 6, 7 (44) and a reduction gearing 22 (41, 42, 43) between the motor and the slide. The work 49 is carried on a slide 2 and the tool 12 on a clapper box 11 on a slide 7, fed by a hand wheel 8 or a shaft 10 and carried by the slide 6. The copying slide 6 can be moved vertically over a short distance on a cross-slide 5. The slide 5 carries the template 13 rotated in dependence on the travel of the table 2 through gearing 15 and synchros 16, 14. The template controls an hydraulic motor 20, 21 through a follower 17. (In a modification, the feeler controls an electric motor and electromagnet clutches.) The piston 21 moves a tapered bar 22 against which a follower 25 on the slide 6 is held by springs 27. The pressure of the springs 27 is such that deformation of the bar 22 or roller 25 takes place, so preventing any inaccuracy due to clearances. If a copying movement is not required, a nut 29 is rotated by a squared shaft 31 to lock the slide 6. In operation, a movement of the feeler 17 produces twice the movement of the bar 22 due to a lever mechanism 35. Consequent movement of the slide 6 is <SP>1</SP>/ 100 th of that of the bar due to the 1 : 100 taper thereof. In a modification, the feeler 17<SP>1</SP>, Fig. 3, controls a fluid pressure motor 40 and the reduction ratio is achieved by gearing 41 driving a ball screw-and-nut 42, 43. The machine is used for planing guideways which are to be used in a machine where they will be worn at their centre portions until a specified wear error has been reached. To give double life, the guideways are planed with the same error in an oversize direction. The machine can also be used for machining dies for plastics or rollers for making corrugated cardboard.
Patent GB-1487231-A (GB)
Title: Apparatus for manufacturing and drying plaster mouldings
IPC: B28B15/00
Filed: 1974-09-06
Abstract: 1487231 Manufacturing lines for plaster mouldings LAMBERT INDUSTRIES 6 Sept 1974 [17 April 1974] 39095/74 Heading B5A A supply and metering unit feeds dry plaster to a plurality of manufacturing lines, each including water supply means, a mixer for the plaster and water, a moulding facility, a dryer for the mouldings and a gripper arranged to grip the mouldings as they leave the moulding facility and to move then to the dryer, there being also a table for receiving the dried mouldings from all the manufacturing lines. As described, dry plaster is fed by a belt, screw, or fluid conveyer 1 (Fig. 1, plan view) to a hopper 2 from which weighed batches (with aggregate, fibres and granules) are led to a trolley serving several manufacturing lines. The plaster &c is mixed with a measured batch of water in a mixer 6 (or 6<SP>1</SP>) that is tipped by jacks to fill a mould 7 (or 7<SP>1</SP>) adjacent a dust remover 13. A gripper 8 (8<SP>1</SP>) rolls on rails 19 to remove the partially set mould contents from the mould on to a trolley W (W<SP>1</SP>) that pushes preceding trolleys around a U-shaped dryer tunnel S (S<SP>1</SP>) heated by a boiler C. At the dryer outlet, the trolley W4 (W4<SP>1</SP>) feeds on to a conveyer 12 (12<SP>1</SP>) that takes the trolley back to the dryer inlet while the plaster mouldings are moved on to a conveyer 25 (25<SP>1</SP>) by the gripper 8 (81). A further gripper 14 feeds the plaster mouldings from all the manufacturing lines against an abutment 151 on a table 15, from where batches of mouldings are removed by a gripper 16 for palettizing. Control is automatic or partly manual. The mould 7 fits in a frame and includes partitions 100 (Fig. 4) and a contoured bottom 102 movable vertically by jacks 103 to eject the mouldings 104. A cover 106 includes apertures 107 to contour the moulding tops 108, and from which excess plaster is removed by a scraper. The mouldings 104 are removed from the mould by the gripper, and pass through the dryer, in the array and relative spacing prevailing in the mould, to allow for air circulation.
Patent GB-1387254-A (GB)
Title: Apparatus for determining the point of colour change in volumetric chemical analyses
IPC: G01N31/16
Filed: 1973-08-17
Abstract: 1387254 Detecting colorimetric end-point ITALCEMENTI SpA FABRICHE RIUNITE CEMENTO 17 Aug 1973 [29 Dec 1972] 39106/73 Heading G1B An apparatus for colorimetric titration comprises (a) a container 1 Fig.1 to which the sample is added, (b) a titrant solution feeder 6, (c) an external liquid circuit 3 fed by and discharging into said container (d) mixing means 5 for receiving liquid from said titrant solution feeder and mixing it with the circulating liquid and (e) a colour detection cell 8 with transparent walls inserted in said circuit downstream of said mixing means and upstream of said container. The apparatus in Fig.1 also includes a stirrer 9. In Fig.3 the liquid circulation includes container 21 and mixer 26, and the cell comprises the top of tube 23. The titration is controlled automatically by lamp 31, voltage stabilizer 33, photo-detector 32, amplifier 34 and solenoid valve 30.