baber/WOPTO huggingface dataset:
Patent GB-877972-A (GB)
Title: A method of and apparatus for the production of printed matter
Inventor: LEMCHE JOHAN HENRIK
IPC: B41J5/32
Filed: 1957-11-20
Abstract: 877,972. Punching machines. ALLERS ETABLISSEMENT A.S., CARL. Nov. 20, 1957, No. 36233/57. Class 31 (2). [Also in Groups XV, XVI and XX] In the production of printed matter comprising separate items of text matter consisting variously of one or more lines, a separate card is used for each item with the line or the first line located at a constant distance from one edge of the card and of a height measured from that edge which is a fixed amount greater than the height of the items on that card and the cards are formed with cardlocating surfaces which are spaced from the above-mentioned edge by an amount which is constant for all of the cards, whereby, when the cards are assembled with the other edges of the cards located by the locating surface of the adjacent card, the separate items on the various cards are set up in uniform spacing to form an original to be produced. As shown in Fig. 7, a sheet of stiff paper 10 having feed perforations 12 (see Fig. 1, not shown), has text matter typed on it at 16 with a constant spacing "a"  between successive text items by means of a typewriter having marginal sprocket teeth and a perforation 20 is punched in one margin at the first line of each text portion by a keyoperated punch in a stationary roller adjacent the typewriter platen. The typed sheet 10 is fed backwards by sprocket wheels 86, 92 through a punching machine, Fig. 4, having a die 76 and knife 80 on a vertically guided plate 72 controlled by eccentrics 58 on a driven shaft 60 which through a friction clutch chaindrives the sprocket wheels 86, 92. When one of the perforations 20, or its optical equivalent, e.g. a black dot, passes between a photocell 134 and a lamp 140, the resulting increase in current through solenoid 126, Fig. 6, causes the pin 120 on the armature to engage in one of the holes 118 in a wheel 116 on the shaft of the sprocket wheel 86, thus stopping the feed of the sheet 10. Continued rotation of the shaft 60 causes the die 76 and knife 80 to punch slots 154 forming flaps 168 having their bases at a distance b from the top of the card section and to produce a cut 156, and thereafter breaks the solenoid circuit due to cam 150 on the shaft operating the switch 136, so that the sheet feed restarts. The sheet then passes under a pair of rotary cutters 158 which trim off the margins of the sheet along the line of the perforations 14, the cards so formed passing down the shoot 174 while the separated margin passes over the sprocket wheel 92. The cards are then assembled on a central rail 166, Fig. 9, having marginal flanges 172 behind which the flaps 168 engage, the bottom edge of the next card behind located by the portion of the flap attached to the body of the front card in line with the bottom of the slots 154, and the semicircular notches 164 formed by cutting through the perforations 14 assist in the locating of the cards on each rail and in aligning sets of cards on different rails.
Patent GB-325323-A (GB)
Title: Improvements in boxes for string or the like
IPC: A47F13/04
Filed: 1928-12-08
Abstract: 325,323. Gaunt, C. F. Dec. R, 1928. String holders.-A box for a ball of string &c. has a detachable lid 4 provided with an opening 6 through which the string &c. is withdrawn and with a right-angled metal plate 8 secured to its underside and having an opening 10 the axis of which is disposed substantially at right angles to the axis of the hole 6; the string 7 passes from the ball through the holes 10, 6 and is thus given a kink or bend which prevents the end of the string slipping back into the box. The string is cut by a safety razor blade 13 carried by a doubled, and preferably resilient, sheet metal holder 11 having flanges. 15 slidably mounted in a channelled guide member 16 on the exterior of the lid. The holder is cut away at 12 to expose an edge of the blade 13 and a stop 20 on the member 16 limits the endwise movement of the holder 11 in one direction. The base of the box is a relatively large plate 3 which may be weighted and which is secured to the bottom of the box by tubular rivets 2 which provide passages for screws for securing the box to a fixed support.
Patent GB-991488-A (GB)
Title: Improvements in or relating to the manufacture of nuts for assembling to sheet metal
IPC: F16B37/04
Filed: 1962-10-10
Abstract: 991,488. Rolling; producing nuts. MULTIFASTENER CORPORATION. Oct. 10, 1962 [Nov. 28, 1961], No. 36244/64. Divided out of 991,487. Headings B3A and B3M. Metal strip 10 to be cut into short lengths to be given screw-threaded holes to form anchornuts such as nuts described in Specification 991,487 has a raised central portion with a plane surface 11 and side flanges 12 and has a groove 35 formed adjacent each side of the central portion by rolls 15, Fig. 1, on drive shafts 18. Concurrently, a roll 20 depresses the central area 23 to form raised margins 25 and at a next step, Fig. 2 (not shown), a roll contacts the area 23 and has frusto-conical ends to force out the margins 25 to overhang the grooves 35. A roll 30, Fig. 3, is then applied so that the margins 25 are lowered to the plane of the central area 23 and the overhangs are formed by ends 31 on the roll to have faces 25B at right angles to the area 23.
Patent GB-1240878-A (GB)
Title: Improvements in or relating to toys and playthings
Inventor: RYLANDS PATRICK
IPC: A63H33/06
Filed: 1968-07-30
Abstract: 1,240,878. Constructional toy. TRENDON Ltd. 9 July, 1969 [30 July, 1968], No. 36245/ 68. Heading A6S. A sectional toy comprises several pieces, including a substantially flat base, 1, with parallel grooves 2, in at least its upper face, and a plurality of edge grooved elements 3, 7, 10, 15 capable of being interengaged with each other and of being erected by interengagement with the base. The elements may have a single groove 13, 8 or two parallel grooves 5, 16. A multigrooved element 3 may act as a "key" element with which other single grooved elements are engaged. The base is preferably rectangular with grooves in both of its opposite faces. The elements may be of such a form and arranged so as to represent a man kicking a ball 15. The base and elements are preferably of moulded plastics material of formed from sheet plastics material. Ciroular elements may be engaged with the lower face of the base so as to represent a vehicle.
Patent GB-1397638-A (GB)
Title: Position finder
IPC: G01B5/004
Filed: 1972-08-03
Abstract: 1397638 Measuring coordinates B E ARTHUR (D T CARTER) 3 Aug 1972 36351/72 Headings G1J and G1M A position P on a plane surface, for example of a map or bank note, is precisely defined by two readings on a scale 6 determined by the crossing at point P of a taut flexible connector which may be a single thread 7 which passes from one cursor 4 to another 5 via fixed points H, V which are in line with reference lines HL, VL respectively on a transparent base 1. The cursors 4, 5 are adjacent the scale 6 and are movable along an arcuate runway 3. The points H, V may be projections (as shown) or slots. One or more springs may be used to tauten the thread 17 and, in a modification, the connector may comprise separate individually tensioned threads.
Patent GB-868294-A (GB)
Title: Improvements in claws for milking machines
IPC: A01J5/04
Filed: 1958-11-12
Abstract: 868,294. Milking claws. JOYCE FARM EQUIPMENTS Ltd., and JOYCE, A. H. Nov. 12, 1959 [Nov. 12, 1958], No. 36425/58. Class 5(1). A claw for a milking machine comprises a head 3 and a moulded base member 4 arranged to be a push fit into the head, the member 4 carrying an outlet tube 8 mounted integrally therewith.
Patent GB-1219158-A (GB)
Title: Switching devices for superconducting electrical current lines
IPC: H01H33/00
Filed: 1968-07-31
Abstract: 1,219,158. Arc-rupturing in switches. SIEMENS A.G. 31 July, 1968 [4 Aug., 1967], No. 36608/68. Addition to 1,127,658. Headings H1K and H1N. A switching arrangement for a superconducting cable 1 comprises superconductive means 2 in series with an isolator 5 and in parallel with a circuit-breaker 8, the superconductive means changing from its superconducting state to its high resistance normallyconducting state when control means are operated to increase the current density in the means 2 or part thereof. In Fig. 1, the means 2 is formed by two groups of conductors 3, 4, the larger group 4 being switched out by an isolator 6 to increase the current density in the smaller group 3. The isolator 5 is then opened and the current in the cable 2 is interrupted by the circuit-breaker 8 so that heat due to arcing is generated outside the thermal insulation of the superconducting means and cable. Figs. 2 and 3 (not shown) illustrate arrangements in which the conductors of the means 2 are associated with individual isolator contacts. In another arrangement, the current density in the means 2 is increased by discharging a capacitor through the superconducting means 2. The contacts of the isolators 5 and 6 and the conductors of the means 2 may be of niobium- 65 atom per cent titanium or niobium-25 atom per cent zirconium. The conductors may have a coating of pure aluminium and reference is made to the numbers and sizes of the conductors of the superconducting means. The conductors are insulated from one another and may form the warp filaments of a woven fabric, the weft filaments being of insulating material.
Patent GB-623217-A (GB)
Title: Improvements in or relating to 2-methyl-4-chloro-phenoxyacetic acid
IPC: C07C51/42
Filed: 1946-12-13
Abstract: Solid 2-methyl-4-chloro-phenoxyacetic acid containing not more than 10 per cent by weight of water is obtained by acidifying with vigorous agitation the product from the aqueous alkaline condensation of chloro-orthocresol with monochloracetic acid at such a temperature that the precipitated acid is molten, the mixture so obtained being continuously fed to a second vessel maintained at a temperature at which the acid phase remains molten and where it is allowed to separate by gravity, being then run off and allowed to cool.  Before cooling, water may be removed from the acid by heating above 100 DEG C.  Preferably the alkaline condensation product contains 5-20 per cent by weight of, e.g., the sodium salt of the oxyacetic acid.  The step of acidification is controlled at just acid to Congo Red, i.e. about pH 3.0 and aqueous mineral acid, such as hydrochloric and 30-50 per cent by weight sulphuric acid used.  Specifications 573,510 and 573,929, [Group I], are referred to.
Patent GB-512218-A (GB)
Title: Pulpy ink and fountain pen thereto
IPC: B43K7/00
Filed: 1938-12-19
Abstract: 512,218. Ink; fountain pens. BIRO, L. J. Dec. 19, 1938, No. 36883. [Class 146 (iii)] An ink for use with a fountain pen having a ball marking point consists of a viscous, quickly drying part such as a solution of glue or dextrine or other carbohydrate, and a coloured non-drying preferably hygroscopic liquid which is easily separated by physical means from the quick drying portion. The non-drying liquid acts to prevent drying of the ink on the ball, but sinks rapidly into the paper, and preferably acts as a lubricant for the ball. The non-drying liquid should also act as the solvent for the colour, and may consist of glycerine or cholesterized oil. To prevent the supply of too much fluid to the ball 8, it is so mounted in the nozzle 5 that it is held between two annular surfaces, the intermediate part of the bearing being enlarged. The nozzle is mounted in a section 2 having a screw-threaded projection by means of which a cartridge 9 for the ink is attached. The outer end of the cartridge is normally closed by a piston 12 having a screw-threaded rod 14 rotatably mounted in the cartridge and extending beyond its end in order to be engaged by a rotatable operating-head 16 in the barrel; a spring 21 in the head acts to exert pressure on the fluid. Modifications are described in which the piston is operated by a rod entirely separate from the piston so that the rod is not discarded when the cartridge is empty; in one of these modifications, the rod is telescopic to enable a longer container to be used.
Patent GB-1177296-A (GB)
Title: Alkanediols and Process for their Preparation
IPC: C07C31/18
Filed: 1967-08-11
Abstract: 1,177,296. Alkanediols. FARBWERKE HOECHST A.G. 11 Aug., 1967 [13 Aug., 1966], No. 37047/67. Heading C2C. Alkanediols of the formula in which each of the radicals R 1 , which may be the same or different, represents hydrogen or an alkyl radical, R 2  represents an alkyl radical and n is O or another integer, are prepared by treating a diol of the formula with an α-olefine of the formula R 2 -CH = CH 2  in the presence of a radical-forming substance and/or radical-forming radiation. The alkanediols of the above formula in which R 1  represents hydrogen or alkyl (C 1-8 ), R 2  represents alkyl (C 10-28 ) and n is an integer from 1 to 10 and wherein the sum of the carbon atoms in the diol moiety is not greater than 20 are claimed per se. Examples prepare 1-dodecyl-hexanediol-(1,6), 1-dodecylbutanediol-(1,4), 1 :1 reaction products of butanediol-(1,4) with C 15-18  α-olefines, 1-tetradecyl-butanediol-(1,4), 1-dodecyl-ethyleneglycol 1 : 1 reaction product of a C 19 -diol and dodecene- 1, 3-dodecyl-butanediol-(1,3).
Patent GB-901889-A (GB)
Title: Formation of inert coatings on plastic ware by vapour deposition and the products resulting therefrom
IPC: B01L3/00
Filed: 1959-11-03
Abstract: Disposable laboratory ware, e.g. petri dishes or microdiffusion dishes, made from one of the group consisting of polystyrene, p polyethylene, and methacrylate and having a cavity, have, on the surface of the cavity, a continuous, unbroken, adherent coating of a thickness 0,1 to 1,5 microns <PICT:0901889/III/1> of a material selected from the group consisting of silicon oxide, tantalum, aluminium, magnesium fluoride, and aluminium oxide.  As shown, a microdiffusion dish of transparent plastic has a central well 17 and a shallow annular chamber 18 with a dam 25, higher a tthe outer wall than at the central well.  The inner surfaces of the dish may be given a transparent coating of a silicon oxide.  A cover 22 may be arranged to co-operate with the dish so that the latter is supported in a tilted position.  It is stated that the coating is easily wettable, thin, adherent, resistant to the chemicals used and to abrasion.
Patent GB-1351007-A (GB)
Title: Amplifier using at least one negative conductance diode
IPC: H03F3/10
Filed: 1971-08-09
Abstract: 1351007 Solid state amplifiers HITACHI Ltd 9 Aug 1971 [10 Aug 1970] 37323/71 Heading H3T In an amplifier comprising a plurality of strip lines 14-16 having different characteristic admittance, input and output terminals arranged to the side of the strip lines having the smallest and largest characteristic admittance, and at least one negative conductance element 5, 6, 7 connected between the connection point of two strip lines and a common ground plane, the algebraic sum of the characteristic admittance of the output side line at the connection point and the conductance of the element is equal to the input side line characteristic admittance. This provides propagation of the signal from the input to output without any reflections at the negative conductance connection points. The characteristic impedance of the lines is successively increased in the propagating direction of the signal. In the integrated circuit using microstrip lines shown the lines 14, 15, 16 and 17 are formed as metal films adhered on a metal substrate 13 through a dielectric plate 12. Gunn diodes 5, 6 and 7 are connected between the lines and the substrate 13 and the Gunn diodes may be biased to operate in the LSA mode. Oscillation of the elements 5, 6, 7 is prevented by setting the conductance of the circuit as seen from the respective element lower than that of the element at the operating bias point. Some components generated from the elements proceed towards the input side. These can be cancelled by selecting the distance from the first to the last element to be longer than #/4. A modified microwave integrated circuit (Fig. 4, not shown) includes input and output terminals (18, 23), D.C. blocking capacitors (19, 22), impedance transformers (20, 21) input and output strip lines (14, 15) and a bias voltage connection (24) separated by ceramic plates (13) from a ground conductive substrate (13). A Gunn diode (26) is connected between the lines (14, 15) and the substrate (13). An isolator may be inserted in the input or output line or intermediately to minimize reflections. The elements may also be avalanche diodes.
Patent GB-1000035-A (GB)
Title: A stereophonic electrodynamic pickup
IPC: H04R9/16
Filed: 1961-10-18
Abstract: 1,000,035. Stereophonic pick-ups. FONOFILM INDUSTRI A/S. Oct. 18, 1961 [Oct. 22, 1960], No. 37419/61. Heading H4J. A stereophonic electro-dynamic pick-up comprises a stiff stylus arm 14 (Figs. 1, 2) mounted so as to permit transverse angular vibration thereof in any transverse direction about a vibration centre at or near one end thereof, and an armature 16 of ferromagnetic material extending transversely to the stylus arm 14 and fixed relatively to the stylus arm 14. The centre of gravity of those parts of the pick-up which, during use of the pick-up, will undergo such angular vibration are coincident with or substantially coincident with the vibration centre. Two pick-up coils 17, 18 (Fig. 3) are wound on the armature and a magnetic field passes through the armature in a direction transverse to the winding axes of both coils 17, 18. One coil 17 is electrically insensitive to vibrations of the stylus arm 14 in one transverse direction and the other coil 18 is electrically insensitive to vibrations in a direction substantially perpendicular to said one transverse direction. A rod-shaped permanent magnet 2 provides the magnetic field and has at one end a pole piece 3 and at the other end a yoke 4. A further pole piece 5 is adjustably mounted in yoke 4. In a bore 7 is mounted a plug 8 which is adjustable on loosening a set screw 9. The plug 8 has a bore 10 in which one end of a support 11 for the stylus arm 14 is rigidly fitted. A portion 12 is of reduced cross-section and carries a cylindrical head 13 on which one end of the stylus arm 14 is mounted. Vibration of the stylus arm 14 takes place in the zone of portion 12. Damping is provided by a butyl rubber pad 22, adjustment of the damping being carried out by adjustment of plug 8. Reference has been directed by the Comptroller to Specification 930,367.
Patent GB-1073749-A (GB)
Title: Improvements in or relating to semiconductor electromechanical transducers
IPC: H04R23/00
Filed: 1964-09-14
Abstract: 1,073,749. Semi-conductor devices. SIEMENS A.G. Sept. 14, 1964 [Sept. 13, 1963], No. 37425/64. Heading H1K. A semi-conductor device consists of a thick low-restivity layer 24 surmounted by a thin high-resistivity layer 26 of opposite conductivity type which is in turn surmounted by a thin layer 27 of the same conductivity type as the thick layer. When a probe 28 contacts the free surface of the upper layer, and is connected as shown to a source of potential (with or without a control connection to the central layer) so that the probe-contacted layer functions as collector, the collector current increases with the pressure applied by the probe. The invention is an improvement on a known device (Fig. 1, not shown) in which the probe contacts the emitter of a transistor and the output current decreases with increasing probe pressure. Fig. 2 (not shown) depicts a planar NPN structure in which P and N base and collector zones (12, 13) have been successively diffused through surface oxide masks into an N-type silicon (or germanium or A3 B5 compound) body (11). Fig. 3 depicts an equivalent mesa structure in which P-type material has been epitaxially grown on to an N-type emitter body 24 and a subsequent heat treatment has diffused the PN junction from the location 25a to the location 25. The N-type collector region 27 has then been formed at the surface of the P-type region by diffusion. Final shaping to the mesa form was by chemical etching. In both forms the collector electrode 30 and the probe 28 contact the collector layer through an aperture in the surface oxide layer 29. Transducers embodying devices according to this invention are described in Specification 1,073,750 (see Division E1), which is referred to.
Patent GB-1313937-A (GB)
Title: Containers of synthetic thermoplastic materials obtained from blends containing at least 50 percent by weight of polymeric material derived from vinyl chloride
IPC: B65D23/02
Filed: 1970-08-04
Abstract: 1313937 Lined plastics containers MONTECATINI EDISON SpA 4 Aug 1970 [4 Aug 1969] 37553/70 Heading B5A [Also in Division B8] A container is formed of a blend of at least 50% by wt. of a vinyl-chloride-based polymer and having a Vicat softening point greater than 85 C. and is lined at least inside by at least one layer of a vinylidene-chloride-based polymer, the vinyl-chloride-based polymer being polyvinyl chloride having a syndiotacticity index greater than 1-8 or a post-chlorination product thereof, a post-chlorination product of atactic vinyl chloride polymers or mixtures thereof. The container, which may be filled with a beverage and pasteurized, is produced by blowmoulding cut lengths of an extruded tube of the blend of vinyl-chloride-based polymer which has been coated on one or both sides, e.g. by dipping, with the vinylidene-chloride-based polymer.
Patent GB-1515299-A (GB)
Title: Stabilisation of sodium percarbonate
IPC: C11D3/39
Filed: 1974-08-28
Abstract: 1515299 Stabilized sodium percarbonate UNILEVER Ltd 26 Aug 1975 [28 Aug 1974] 37650/74 Heading C1A [Also in Divisions Dl and C5] Sodium percarbonate is stabilized against loss of oxygen when incorporated in a detergent composition. by admixture with ¢ to 4% by weight, based on the percarbonate, of an oily, perfume diluent, selected from dimethyl, diethyl or dibutyl phthalate, mineral oil or the hydrogenated ester of pine rosin. The oily diluent may be sprayed, optionally in admixture with a perfume, directly on to the percarbonate, or admixed in a fluidised bed with the detergent powder into which the percarbonate is to be incorporated. The exemplified spray-dried detergent powder contains (I) dodecyl benzene sulphonate, anhydrous soap, sodium sulphate and sodium tripolyphosphate. The perfume may itself contain percarbonate stabilizing components.
Patent GB-337648-A (GB)
Title: Improvements relating to centrifugal machines
IPC: B04B9/08
Filed: 1929-12-09
Abstract: 337,648. Watson, Laidlaw & Co., Ltd., and Watt, H. Dec. 9, 1929. Driving, supporting, balancing. - A centrifugal machine on the spindle 9 is driven by a motor on the spindle 1 through a slipcoupling and a universal coupling so aranged that the slipcoupling is unaffected by relative displacement of the driving and the centrifugal spindles. The carrier 2 fixed to the motor shaft 1 carries slippers 3 co-operating with the pulley 4 which can rotate on the spindle 1, but cannot move axially or laterally on the spindle. Studs 5 on the pulley engage flexible discs 6 which are also engaged by studs 7 on a member 8 fixed to the shaft 9 of the centrifugal machine.