baber/WOPTO huggingface dataset:
Patent GB-419621-A (GB)
Title: Improvements in or relating to alloy steels, particularly for colddrawing dies
IPC: C22C38/12
Filed: 1933-07-25
Abstract: A nitrogenized alloy steel contains 8-25 per cent of tungsten, up to 1 of carbon, up to 8 of chromium, up to 3 of vanadium, up to 2 of aluminium, and, if desired, up to 20 of cobalt and/or up to 8 of molybdenum.  The alloy may also contain up to 1 per cent of nickel. Prior to nitrogenizing the alloy is quenched or cooled quickly from 1000-1300 DEG  C. and tempered at 500-700 DEG  C.  In an example, the alloy steel contains 0,39 per cent of carbon, 0,22 of silicon, 0,24 of manganese, 3,13 of chromium, 0,12 of nickel, 10,27 of tungsten, 0,54 of vanadium, and 1,21 of aluminium.  Specifications 174,580, 243,613, [both in Class 72], 381,851, and 398,834 are referred to.
Patent GB-803299-A (GB)
Title: Improvements in or relating to circuit arrangements for the selective detection of oscillations of given frequency
IPC: G08B3/10
Filed: 1956-07-06
Abstract: 803,299. Radio signalling. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 6, 1956 [July 8, 1955], No. 21010/56. Class 40 (5). A calling system comprises a selective frequency detection circuit, wherein when locally generated oscillations and a signal of the same frequency are both applied to an amplifying valve the amplifier gain falls sharply. In the embodiment shown, 40 Mc/s. signals modulated by a 2-3 kc/s. tone are received by a loop aerial and detected by stage 1, Fig. 1, amplified by stage 3, the 2-3 kc/s. tone being applied to the control grid of amplifier valve 6. The output of oscillator 11-16 is applied to the screen grid of valve 6 through condenser 10, the frequency being determined by tuned circuit 11-12 and substantially equal to the modulation frequency of the call signal. When there is no signal input to the control grid of valve 6, the oscillations being applied to the screen grid, a relatively high alternating voltage appears across resistor 17. Since resistor 9 is not decoupled, the cathode, control grid and screen grid of valve 6 form a triode. When the modulation frequency approaches the frequency of the oscillator 11-16 the latter becomes synchronized thereby and produces oscillations at the screen grid of valve 6 whose phase varies with respect to that of the modulation oscillations at the control grid in accordance with their frequency difference. When the phase difference is 180 degrees the amplitude of the alternating output voltage of valve 6 falls sharply. In the absence of call signal modulation, the oscillations from circuit 11-16, at the anode of valve 6, are rectified by diode 19, a direct voltage being produced across capacitor 21 cutting off oscillator 22-26. In the presence of a signal, the alternating voltage across resistor 17 is reduced, the direct voltage across capacitor 21 is reduced and oscillator 22-26 oscillates, its output being rectified by diodes 30 and 30<1> so that a direct voltage, appearing across capacitor 8 biases the control grid of valve 6 to cut-off. The oscillator 22-26 remains operative until cut-off by closing switch 29, valve 6 being thereby again rendered operative. The, output frequency of oscillator 22-26 is about 2 kc/s. and produces a call signal in the loudspeaker 28.
Patent GB-1195827-A (GB)
Title: Flanging Die
IPC: B21D19/00
Filed: 1969-04-24
Abstract: 1,195,827. Making hollow-ware; flanging. STOCKTON MADISON CORP., J. P. CALCATERRA. J. V. MINIACI, T. A. McCOY, D. J. CALCATERRA, G. Q. RHINEFRANK, F. D. MUSTO, and D. P. BISBEE. 24 April, 1969, No. 21080/69. Headings B3A and B3Q. A die for forming the flange 18 on a cylindrical body 1 comprises a head 5 for insertion in the body 1 and a flanging trough 12 surrounding the head and shaped to form the flange, the outer wall of the trough 12 forming a stop for the flange 18 and consisting of an annular band 11 surrounding the head 5 and yieldable outwardly at a number of separate positions on its circumference. As shown, the band comprises rigid segments 13 connected by links 14 and link-pins 15 and having a flange 16 guided in a slot 17 in the head. Hollow-ware.-A drum or pail is made by welding together the opposite ends of a metal sheet to form a cylindrical body with a longitudinal seam. The body is sized on an expanding mandrel which causes it to shorten except for the seam. A flange for securing an end closure is now formed using this die, the segment 13 of which adjacent the seam is expanded, Fig. 3 (not shown), thus preventing deformation of the seam.
Patent GB-1068907-A (GB)
Title: Oxidation of cyclohexane
Inventor: GARDNER CYRIL
IPC: C07C45/33
Filed: 1963-05-27
Abstract: Cyclohexane is oxidized in the liquid phase with mixtures of oxygen and gases inert with respect to the reactants and products of the process, the proportion of oxygen in the gaseous mixtures being varied during the course of the oxidation, preferably being increased as the oxidation proceeds.  An oxidation catalyst, e.g. cobalt naphthenate may be employed.  The mixture of oxidation products obtained by the process of the invention may be further oxidized with nitric acid to form adipic acid.
Patent GB-1274186-A (GB)
Title: Piezoelectric device
IPC: H03H9/58
Filed: 1971-04-19
Abstract: 1,274,186. Piezoelectric resonators. P. R. MALLORY & CO. Inc. 19 April, 1971 [6 Feb., 1970], No. 21130/71. Heading H3U. A device functioning as a filter or impedance transformer comprises, Fig. 1, disc-shaped plates 2,3 of piezoelectric ceramic material polarized in the thickness direction, the plates being of the same or different thicknesses and one or both of the plates having an aperture 7. The plates 2, 3 are adhered together with an intervening electrode layer 6 to form a monolithic unit, this electrode being connected to a lead 8 extending through the aperture 7 in plate 2. The outer surfaces of the plates have electrode layers 9, 10 connected, respectively, to leads 12, 11. Another embodiment, Fig. 3, comprises three piezoelectric plates 30, 31, 32 with intervening electrodes 36, 37 connected to leads 34, 35 extending through apertures 33 in the plates 30, 32. Various ways of connecting the device between a source and load are described with reference 6, Figs. 4-7 (not shown). The device of Fig. 1 may function as an impedance transformer by making the plates 2, 3 have different input impedances, this effect being illustrated in a graph (Fig. 8, not shown). The device of Fig. 1 may be mounted as shown in Fig. 10 in a cover 100 and retained by the clamping action of leads 94, 95, lead 94 abutting the outer electrode 97 and lead 95 the intervening electrode 98.
Patent GB-1462584-A (GB)
Title: Apparatus for use in splicing together the ends of two strips
IPC: G03D15/04
Filed: 1975-05-19
Abstract: 1462584 Splicers HAMA HAMAPHOT KG 19 May 1975 [14 June 1974] 21141/75 Heading G2E [Also in Division G4-G6]  A splicer for joining together two strips of material such as recording tapes or film strips comprises a lid 3 hinged to a base 1, a cutter attached to the lid, and a flap 4 hinged to the base and carrying the film strips from a first cutting position to a second position in which an adhesive tab is wrapped round the cut ends. As shown, the flap 4 can hinge in bearings 7, 8 from the position shown in full line to the position shown in broken line. It has a rectangular window opening 12, and in the full line position a rectangular part 13 projecting upwards from base 1 fits into window 12. The part 13 has three outwardly projecting lobes (14, 15, 16), Fig. 4 (not shown) which fit snugly into the window opening so that flap 4, which is mounted with a certain amount of play, locates itself accurately every time. Flap 4 carries teeth 17-20, which engage in the perforations of the two film strips 22, 23 to position them accurately as they rest on the part 13. Lid 3 carries a pad 24 of soft cellular rubber in which the cutter blade (26), Fig. 5 (not shown) is embedded, the blade emerging to cut the film ends only when the lid is closed and pressed downwards. After lid 3 is raised again, one limb of a U-shaped adhesive tab is applied over the joined film ends, guided by prongs 29 on part 13 and located by a positioning spot (30) on part 13. Flap 4 is now swung over into the dotted line position, carrying with it the film strips. In this position a dog 31, projecting upwards from the base 1, enters through the window. A sloping face of the dog lies adjacent the nearest edge of the film strip, and the other limb of the adhesive tab abuts against this sloping face and is bent backwards so that it can be readily grasped and applied to the other side of the joined film ends.
Patent GB-141775-A (GB)
Title: Improvements in or relating to suspension transporter arrangements
IPC: B61B7/00
Filed: 1918-12-18
Abstract: 141,775. Jack, A. G. M. Dec. 18, 1918. Rope railways-In transporter bridges, the load-carrying platform is suspended from a suspension chain by a pair of chains w engaged by sprocket-wheels v mounted in the lower part of the trolly. Each wheel v is mounted on a shaft which is driven by gears n, m on shafts h, each shaft carrying a sprocket-wheel k gearing with the suspension chain.
Patent GB-1215515-A (GB)
Title: A set of throw-away bibs
Inventor: BOYE IVAR HELMER
IPC: A41B13/10
Filed: 1968-05-06
Abstract: 1,215,515. Bibs. I. H. BOYE, J. KRISTENSEN, and P. E. RASMUSSEN. 6 May, 1968 [9 May, 1967], No. 21312/68. Heading A3V. A set of throwaway bibs, each consisting of one or more layers of thin material such as paper in which cuts 4, 5 are made so as to form a neck incision, and a flap 6 to be folded down, is made by joining the bibs so as to form a long strip in which the border between the bibs is formed by perforations 2, 3 across the length of the strip. The set may be rolled up or folded for transportation and dispensing. The cuts 4 and 5, together with the perforation 2 form the flap 6 and two neck strips 7 and 8. The cuts 4 and 5 may terminate in round holes to prevent tearing. At the ends of the strips 7 and 8, on opposite sides of the paper, there are regions 13 with selfadhesive glue to enable the bib to be fastened round the neck of a wearer (Fig. 8, not shown). Alternatively the bib can be fastened by tying the strips 7 and 8 (Fig. 4, not shown). The lower part of the bib can be folded up along line (AA<SP>1</SP>) (Fig. 5, not shown) to form a pouch. The bibs may be coated on one side with extruded polyethylene glued thereto.
Patent GB-796388-A (GB)
Title: Light-stable pure gum butyl vulcanizates
Inventor: EBY LAWRENCE THORNTON
IPC: C08K5/00
Filed: 1956-07-10
Abstract: A butyl rubber composition, resistant to sunlight, comprises a cured low-unsaturation copolymer of a major proportion of an iso-olefin and a minor proportion of a diolefin and, as stabilizer, from 0.1 to 5 per cent of p-dimethylamino-azobenzene, 4-dimethylaminobenzene-1-azo-1-naphthalene, p-hydroxyazobenzene, 2,4-dinitrodiphenylamine or 2-amino-4-nitrophenol.  The example further describes the use of the following compounds as stabilizers: Azoxybenzene, Bismark Brown, Brilliant Yellow, Chrysoidin R and Y, Chrysophenin, Congo Red, Diazine Green, Evans Blue, p-nitrobenzeneazo-a  - naphthol, p - nitrobenzeneazoresorcinol, Orange IV, Scarlet Red, sodium p-dimethylaminoazobenzene - p - carboxylate, Sudan III, thiodiphenylamine, resorufin, a -phenylhydrazoquinoline, p-nitroso-diphenylamine, indigotin, diphenylnitrosoamine, di - beta - naphthol and sodium p - hydroxyazobenzene - p - sulphonate.  The preferred copolymers are those of isobutylene with a diolefin of from 4 to 14 carbon atoms, e.g. butadiene, dimethyl butadiene, isoprene, myrcene or dimethallyl, having a molecular weight of from 35,000 to 85,000.  The composition of the example contains also stearic acid, zinc oxide, sulphur and tetramethyl thiuram disulphide.
Patent GB-1018196-A (GB)
Title: Improvements in or relating to mooring lines for ships
Inventor: ELSTUB GERALD FRANK
IPC: B63B21/56
Filed: 1963-05-29
Abstract: 1,018,196. Tensioning ropes; shock-absorbing devices. J. A. POSFORD, R. PAVRY, J. F. C. SWANSBOURNE, and P. W. ROWLEY. May 26, 1964 [May 29, 1963], No. 21430/63. Heading B8B. A resilient device for holding a mooring hawser H, Figs. 1 and 2, comprises a pulley 8 around which the hawser H is wound and which is yieldingly held against rotation by a tension cable 6 acting through a pulley 7, planetary reduction gear system 23, 24, 25 and shafts 14. The cable 6 passes over pulley blocks 2, 18 and operates to compress a spring 10 arranged between the blocks. One of the pulley blocks 2 is attached to a fixed mooring point R and the other block 18 is Attached to the frames 17, 18 on which the planetary reduction gear casing 11 is mounted. Cables H and pulleys 8 may be arranged in pairs to balance the system about a centre line.
Patent GB-186773-A (GB)
Title: Improvements in or relating to machines for making paper bags
IPC: B31B23/00
Filed: 1921-08-12
Abstract: 186,773. Hartmann, C. W. Aug. 12, 1921. Paper bags, making.-Relates to a bag-making machine in which a web of paper is folded around a former into a flat tube that is cut up into bag lengths and gummed and folded, and comprises means for gumming and folding the bottom of the tube, means for stacking the finished bags, and arranging the parts of the machine so that a minimum space is occupied. In the construction shown, a web of paper from a roll, after being pasted along one edge, is folded around a former 10 into a tube which is cut into bag lengths by a blade 14. The short tube is fed by rolls 13 to the gumming device which consists of a rib or blade 19 secured at its end to a pinion 20 that engages a toothed segment 21. The pinion is journaled in a crankarm 22, Fig. 3, and the segment is secured to a crank 23. These cranks are oscillated in such a manner that the blade 19 is turned through 180‹ as it is swung from the paper tube to the feed-roller 18 of the gum box and thus does not make a wiping contact with either the paper or the feed-roller. After being gummed, the paper tube is forced by a reciprocating folding-blade 17 into the space between rollers 15, 16 which fold and press the bottom of the bag. The folded bag is conveyed to the delivery box by means of endless bands 26, 28, 31, Fig. 2, which are arranged mainly in two upright runs as shown in order to minimize the space occupied by the machine. The bands feed the bag between the side rails 33, 34 of the folding box, and an oscillating plate 38 knocks the bag from between the rails into the pile 37. The rails 34 engage the edges of the bag and prevent it from returning into the path of the succeeding bag.
Patent GB-734422-A (GB)
Title: Steroid compounds and processes of producing same
Inventor: INHOFFEN HANS HERLOFF
IPC: C07J75/00
Filed: 1952-08-28
Abstract: The invention comprises 21-esters of 21-hydroxypregnane and pregnene compounds with carboxylic acids, the reducing power of which acids renders them capable of separating metallic silver out of ammoniacal solutions of silver salts, e.g. 2-ketogulonic acid and the mono- and diacetone compound of the same, glucoronic and galacturonic acid, pyruvic acid, 1-oxy-2-aldopropionic acid and glyoxylic acid; and the preparation thereof by reacting the 21-iodo compounds corresponding to the said esters with an alkali metal or the silver salt of the acid with which the esterification is to be carried out.
Patent GB-334331-A (GB)
Title: Improvements relating to hand cases for luggage
IPC: A45C13/02
Filed: 1929-07-15
Abstract: 334,331. Dehn, F. B., (Wheary Trunk Co.). July 15, 1929. Fittings, internal; partitioned boxes.-A hand Case for garments, shoes, &c. comprises a removable frame 29 hinged at 30 so that it can fold down into a compartment constituted by a partition 12, or can be lifted so as to be adjacent the lid 6 when the case is open. Garments hung on the frame are contained in part by a well constituted by a removable partition 23 and are held by removable straps 43. The partition 12 stops short of the bottom and has attached to its lower edge a flexible strip 16 forming a space into which the toes of shoes &c. contained in the compartment on the other side of the partition 12 may project. This compartment is covered by a lid 17 on the underside of which a pocket is carried. A pocket 26 may also be provided on partition 23.
Patent GB-223883-A (GB)
Title: Improvements in or relating to telephone systems
IPC: F04B39/10
Filed: 1924-09-16
Abstract: 223,883. Western Electric Co., Ltd., (Assignees of Friend, O. A., and Dustin, G. E.). Oct. 24, 1923, [Convention date]. Automatic exchange systems are provided with digit-absorbing selectors which are not moved off normal by the first digit they receive, at the offices that do not yet serve their full capacity of lines. In the Strowger selector shown, line relay 200 and release relay 210 pull up and the first digit is repeated to the sluggish relay 240 which pulls up and energizes relay 270. At the end of the digit, relay 240 falls back and energizes the sluggish relay 250 which locks itself to the release wire, releases relay 270 and connects the vertical magnet 280 in parallel with relay 240 in readiness for the re-set digit. The change-over of springs ON energizes stepping relay 270, so that on the relapse of relay 240 at the end of the digit, rotary magnet 281 pulls up. The stepping relay thus falls back and releases the rotary magnet, and if the first trunk is busy pulls up again to re-energize the rotary magnet. When an idle trunk is found, switching relay 220, being no longer shortcircuited energizes in series with the stepping relay and locks itself to ground returned from the selector ahead. The removal of this ground when the calling party hangs up, releases relays 220, 250 whereupon the release magnet 284 operates.
Patent GB-486268-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B39/02
Filed: 1937-08-09
Abstract: 486,268. Refrigerating. ELECTROLUX, Ltd. Aug. 9, 1937, No. 21884. Convention date, Sept. 3, 1936. [Classes 29 and 64 (iii)] Absorption machines. -Baffle members inserted in absorbers and evaporators are shaped or fitted so that liquid when baffled at its upper surface is forced to flow between the baffle members and the wall of the tube or vessel, whereby films on the liquid surface are positively destroyed and absorption or evaporation is improved. The baffle mombers consist of a helical strip 15 having notches 16 on its edge, and the tube wall is indented at intervals 12 in known manner, preferably intermediate the contact points of the strip. A plain wire may be used, the unevenness of contact being sufficient to provide liquid flow paths ; or a stranded wire may be employed. The helical baffle may be screwed into the tube before or after formation of the indentations. Specification 264,170, [Class 29], is referred to.
Patent GB-263903-A (GB)
Title: Improvements relating to patterned fabrics and the like
IPC: D06Q1/00
Filed: 1925-09-02
Abstract: 263,903. Rodgers, E. Sept. 2, 1925. Ornamenting fabrics.-Textile fabrics, leather, paper, &c., are decorated by applying thereto, in pattern or design form, a paste comprising rubber, tannin, and sulphur, with or without resin, The paste may be coloured by the addition of colours in essential oil or alcohol, zinc white, or titanic oxide. The rubber is dissolved in benzine or carbon disulphide, and if the fabric does not comprise artificial. silk, the resin may be omitted. The paste may be applied through stencils and dried by heat. Shredded or cut materials, and bronze or silver powders, may be applied to the paste patterns before drying, for which purpose an aerograph may be used.
Patent GB-1462478-A (GB)
Title: Pulse detecting and repeating arrangements
IPC: H04B3/28
Filed: 1974-05-16
Abstract: 1462478 Automatic exchange systems; pulse repeating circuits POST OFFICE 23 April 1975 [16 May 1974] 21901/74 Headings H4K and H4R A circuit for responding to pulses on a transmission line comprises a transistor 16 and transformer windings 15, 14 connected across resistors in the line wires A, B as shown in the Figure. Pulses on the line cause transistor 16 to conduct to produce a corresponding output at terminal 19 and the transformer 13 acts to prevent longitudinal currents induced in the line from switching the transistor. The Zener diodes are used to prevent excessive D.C. from flowing through the transformer windings. The arrangement may be used on a telephone line, the transistor 16 taking the place of the A relay.
Patent GB-628818-A (GB)
Title: Improvements in or relating to the production of water-soluble methylol melamine condensation products
IPC: C14C3/20
Filed: 1946-07-23
Abstract: Methylol melamine or a copolymer thereof with methylol urea is condensed by agitation at 30-100 DEG  C. with an aminocarboxylic or aminosulphonic acid or alkali metal or ammonium salt thereof.  If desired, melamine and formaldehyde or melamine, urea and formaldehyde may replace the methylol derivatives.  The products are water soluble and particularly suitable for tanning or finishing leather (see Group VIII).  Suitable amino acids are alanine, glycocoll, b -aminobutyric acid, anthranilic acid, p-aminobenzoic acid, taurine, b -aminopropane sulphonate, sulphanilic acid, orthanilic acid, metanilic acid, 1-naphthylamine-5-sulphonic acid, 2-naphthylamine-5,7-disulphonic acid, 2-naphthylamine-6,8-disulphonic acid, aniline disulphonic acid, 4,41-diaminostilbene-2,21-disulphonic acid, 1 amino-2-naphthol-4-sulphonic acid, 1-naphthylamine 3,6,8-trisulphonic acid.  The solution of the condensation product may be heated at a pH of 5 to 7 to promote further polymerization and increase the viscosity of the solution.  For stability during storage, alkali, e.g. borax or caustic soda should then be added to a pH of 9-11. Many examples are given, all of them employing condensation products of melamine and formaldehydes.
Patent GB-1514313-A (GB)
Title: Alloying additive for producing alloys of non-ferrous metals and a method of producing such an additive
IPC: C22C1/03
Filed: 1975-05-21
Abstract: 1514313 Alloying additives SOLMET ALLOYS Ltd 21 May 1975 21935/75 Heading C7D Alloying additives for metallic melts consist of powdered alloying elements mixed with powdered fluxes which are heated together to 300-600‹C to melt the fluxes and cooled to produce a solid material which the alloying elements are bonded together by the flux. Briquettes may be similarly made.  The particulate size of elements should be “" to 200 B.S.S. mesh, with the flux at -30 mesh. The fluxes may be mixtures of chlorides or fluorides of K, Na, Mg, Ca or Mn or cryolite or fluorspar. The alloying elements may include, Mn, Fe, Cr, Mi, Ti, B, Cu, Si, Pb, Bi, Cd, and Zr, and the base metals may include Al, Cu, Mg, Zn, and Pb.
Patent GB-320955-A (GB)
Title: Improvements in taping and like machines
IPC: D07B7/14
Filed: 1928-07-28
Abstract: 320,955. British Thomson-Houston Co., Ltd., and Satchell, H. L. July 28, 1928. Cores, covering by winding. - In a machine for winding tape and like coverings on to cores such as electric conductors, and of the type wherein a number-of rolls of covering material are carried bodily around the core, the axes of the rolls 4 are parallel to the core 1 and the covering material 5 approaches the core at right angles, but passes beyond the core and is then doubled back upon itself around a guide rod 9 disposed at an angle so that the doubled-back part of the covering material is presented to the core at the correct angle. The length of unsupported covering material is thus reduced.