baber/WOPTO huggingface dataset:
Patent GB-1388465-A (GB)
Title: Method of soldering a metal terminal to a semiconductor body and the component so-formed
IPC: H01L21/60
Filed: 1972-05-04
Abstract: 1388465 Soldering ROBERT BOSCH GmbH 4 May 1972 [5 May 1971] 20803/72 Heading B3R A semi-conductor body 17 has a meta<SP>1</SP> terminal 14 or 14<SP>1</SP> soft soldered to it by providing the terminal with a nose-like projection 14b having a flank or flanks 15b at an obtuse angle to the planar end face and possibly inwardly curved as shown. The terminal is placed in a stream 11 of molten solder such as that issuing from nozzle 12 into channel 13 in a sealed enclosure 10 filled with a reducing protective gas, Fig. 2, and the solder takes the form 16a, 16b shown in Fig. 5. The terminal 14 is then applied to the semi-conductor body as may a similarly coated terminal 14<SP>1</SP>, Fig. 8, and the assembly heated in a furnace to solder the parts together. The assembly may be coated with a synthetic resin 18.
Patent GB-464128-A (GB)
Title: Improvements in ovens or kilns for use in the manufacture of earthenware tiles, bricks and the like
IPC: F27B17/00
Filed: 1936-07-23
Abstract: 464,128. Brick &c. kilns. DOWNING, G. H., and HOLDING, H. R. July 23, 1936, No. 20854/35. [Class 51 (ii)] In a downdraught kiln in which the gases from fireplaces 2 spaced around the kiln ascend through flues 3 in the outer wall, and then descend through the goods to waste gas passages beneath the floor, secondary air flues 7, having peripheral inlets 4a, are arranged beneath the floor and above the waste gas passages, and lead to upcast passages 4b in communication with the flues 3 leading from the fireplaces. The passages 3 and 4b alternate round the kiln, and communicate through inclined ports 5. Secondary air may be supplied above the fire through branches from the passages 4b, which latter may be closed or partly closed at their upper ends Equalizing passages 10 extending between adjacent uptakes 3, and in communication with the air flues 4b through ports 4t, may be provided,
Patent GB-793467-A (GB)
Title: Production of vitamin b-12 products
IPC: C07H23/00
Filed: 1955-07-20
Abstract: A Vitamin B12 preparation is obtained in a process which comprises providing an aqueous medium containing as essential ingredients inverted molasses and a yeast product, the molasses comprising 4 to 18 per cent by weight of the medium and the yeast product being present in an amount to provide an amino nitrogen content of substantially 0.048 to 0.24 per cent by weight of the medium, inoculating the medium with a culture of P. freudenreichii and fermenting for a period of days to develop Vitamin B12 activity.  The yeast is preferably provided in the form of a yeast autosylate such as brewers yeast autosylate, the solids of which comprise from 1 per cent of the culture medium.  The molasses employed may be beet molasses, blackstrap molasses or carrot molasses.  The sugar content of the molasses should be inverted in which case an extraneous source of invertase may be added.  Preferably the fermentation is carried out between 28-32 DEG  C. and at a pH between 6.5 and 7.2 to which value it may be adjusted by the addition of ammonia.  After fermentation for at least 3 to 4 days the culture is centrifuged and the cell cream dried.  Examples describe the process utilizing liquid waste brewers yeast and beet molasses.
Patent GB-517119-A (GB)
Title: Improvements in or relating to method of and apparatus for locating defects in a magnetic article
IPC: G01N27/90
Filed: 1938-07-15
Abstract: 517,119. Electric tests of magnetic articles. STEVENS, A. H. (Sperry Products Inc.). July 15, 1938, No. 21052. [Class 37] A magnetic article is tested for defects by subjecting it to a substantially constant alternating magnetic field to induce circulating alternating currents therein, and electrically detecting distortion of these currents caused by a defect, the article being magnetically saturated during the test to render it substantially non- magnetic with respect to the exciting alternating field so that the test depends on eddy current effect only. Fig. 1 shows two coil assemblies 10, 11, a rod, tube, bar &c. 27 to be tested, being passed axially through the assembly 10 and compared with a standard specimen 28 in the assembly 11. Each coil assembly, comprises a non-conducting tube 12 for the reception of the article 27, 28, on which is wound (1) a coil 29 or 30 energized with D.C. for magnetically saturating the article, (2) an exciting coil 14, 15, fed with high frequency A.C. and (3) a detector coil 17, 18. The exciting coils 14, 15 are connected in series and the detector coils 17, 18 connected in a bridge circuit balanced by means of a variable resistance 20 and condenser 26, defects being noted by observing the variations of a voltmeter contained in a unit 22. In a more developed arrangement, the unit 22 includes a discharge tube of the type known under the Registered Trade Mark " Thyratron " the indication of defects being given by stopping or starting the discharge.
Patent GB-578944-A (GB)
Title: Improved swivel
IPC: F16G15/08
Filed: 1944-10-30
Abstract: 578,944. Swivels. NORTH BRITISH ELECTRIC WELDING CO., Ltd., and WRIGHT, K. L. Oct. 30, 1944, No. 21076. [Class 24] A swivel comprises a pair of forged eye forming members 1 and 7, one of which includes a ring and a stud 2, on which is threaded a nut 5 fixed to the stud as by welding, and a casing 6 is welded to the other member, the nut 5 bearing on an internal ledge of the casing which is clear of the sides of the nut and of the components of member 1. Member 1 can thus revolve relatively to member 7 about the axis of the stud.
Patent GB-580910-A (GB)
Title: Improvements in and relating to the manufacture of catalyst compositions and their application in the syntheses of vinyl fluorides
IPC: C07C17/08
Filed: 1944-10-30
Abstract: A catalyst for the production of vinyl fluorides by the condensation of hydrogen fluoride with acetylene hydrocarbons consists of mercury oxide at least partly combined with a nitrogen oxide and supported on a carrier.  For example, charcoal may be impregnated with mercury nitrate solution and roasted at 90-200 DEG C. to produce a basic nitrate.  Another suitable carrier is magnesium fluoride.  Nitrates of other metals may be mixed with the mercury nitrate.ALSO:Vinyl fluoride, fluoroprene, methyl fluoroprene and similar substances are obtained by condensing hydrogen fluoride with a hydrocarbon having an acetylene linkage, using as catalyst a supported mercury oxide partly combined with an oxide of nitrogen. Basic mercuric nitrate on charcoal or magnesium fluoride is a suitable catalyst.  The condensation is preferably effected at 20-100 DEG  C.  Hydrocarbons which may be treated are acetylene, methyl acetylene, phenyl acetylene and substituted monovinylacetylenes.
Patent GB-1173275-A (GB)
Title: Improvements relating to Safety Helmets
Inventor: BOTHWELL PETER WILLIAM
IPC: A42B3/06
Filed: 1966-02-16
Abstract: 1,173,275. Helmets. P. W. BOTHWELL and J. M. TOJEIRO. 15 Feb., 1967 [16 Feb., 1966; 12 May, 1966], Nos. 6864/66 and 21179/66. Heading A3V. The outer shell of a safety helmet comprises layers 12 and 13 joined to each other at the periphery of the shell by a gently curving portion 14, the space between the layers containing impact-absorbing material in the form of honeycomb material 18 filled with foamed material 19. The inner layer 13 may be perforated and the layers 12 and 13 may be spaced apart uniformly or variably over the shell. Within the shell there may be layers 15, 16 and 17 of cork, polyurethane and cloth respectively or a cradle (21), Fig. 3 not shown, of thick polyurethane may be substituted for layers 16 and 17. Alternatively a plurality of thin polyurethane liners may be supplied with the helmet for securing inside the cork layer 15. A chinstrap 111 is rivetted at one end to the inner layer 13 at 113 and releasably secured at the other by means of a tongue 31 and push button or pull catch in a recess in the peripheral portion 14. Each layer 12 and 13 may be double-walled with impact-absorbing material between the walls and the layers, or the space between single-walled layers 12 and 13 may be partitioned, with a honeycomb layer on each side of the partition.
Patent GB-284158-A (GB)
Title: Improvements in devices for converting rotary into reciprocating motion specially suitable for bottle treating machines
IPC: F16H25/12
Filed: 1927-08-12
Abstract: 284,158. Adam, H., and Holstein & Kappert Maschinenfabrik Ph÷nix Ges. Aug. 12, 1927. No Patent granted (Sealing fee not paid). Bottles, washing.- A pair of screws 7, 8 operates reciprocating devices with a dwell at the end of each traverse, the device being suitable for use in bottle washing machines such as described in Specification 236,841. The screws are geared together, are driven constantly in opposite directions, and are engaged alternatively by driving dogs 19, 20 carried by a member 13 to be reciprocated. In the configuration shown, the dog 19 after having been thrust to the extreme left, has come to rest in a free recess 11. At the end of the dwell, a geared cam 23 strikes a bowl 21 on a rod 18 and thrusts that rod over so that the dog 20 engages and is picked up by the screw 8. At the end of the traverse to the right, there is a dwell terminated by a cam 24 striking a bowl 22, whereupon movement to the left begins.
Patent GB-1457918-A (GB)
Title: Method of producing an easy-opening closure
IPC: B65D41/32
Filed: 1974-05-14
Abstract: 1457918 Making can closures BROKEN HILL PTY CO Ltd 14 May 1974 [15 May 1973] 21338/74 Heading B3A [Also in Division B8D A method of forming an easy-opening closure of the push-in type in a sheet metal can end 6 comprises partially severing the sheet metal to define an opening and a closure member 5, which is hingedly connected to the remainder of the end by a non-severed area, and displacing the closure member in a direction towards that portion of the free-edge 2 of the opening lying opposite the non-severed area by cold-working of the latter so that the opening and closure member free edges 2 and 3 are brought into overlapping relationship. As shown, the closure member displacement is effected by flattening a bulge 7 in the can end at the non-severed area. In a further embodiment, Fig. 5 (not shown), displacement is effected by flattening a portion 10 of an annular can end rib. 8. Alternatively, the displacement may be effected by other cold-working operations, such as stretching or scoring. The closure member may be of parallelsided, semi-circular, or triangular configuration. A sealant may be applied to the overlapped edges.
Patent GB-239702-A (GB)
Title: Improvements in, or relating to rheostats
IPC: H01C10/16
Filed: 1924-09-10
Abstract: 239,702. Collins, C. A. Sept. 10, 1924. Variable resistances; sets of resistances.-Rheostats for use, for example, with wireless valves comprise two or more annular resistance elements in parallel. axially-spaced relationship on a carrying member and a contact having variable engagement with any of the elements, the contact or the carrying member being carried by a spindle axially movable to engage the contact selectively with anv desired element and means being provided to retain the contact removably in such engagement. The elements may be carbon or graphite composition rings or wire spring spiral b, c stretched in grooves e around the periphery of a cylindrical base a. A contact arm n engaging the outside of the spirals b, c may be carried by a metal spindle g rotatable and axially movable in the base a, the spindle g being axially moved to bring the arm n into engagement with either spiral b, c and so to bring either spiral into circuit and the resistance in circuit being then varied by rotating the spindle g. Peripheral grooves l in an enlarged end j of the spindle g co-operate with a spring wire loop m or a plate to retain the spindle in the axial positions in which the arm n engages a spiral. Alternatively, this retention may be produced by a screw or by peripheral projections on the spindle g co-operating with a spring device with recesses. A collar p limits axial movement of the spindle g and stops are provided to limits its rotary movement. The ends of the spirals b, c are connected to a single or separate terminal and a terminal is formed by or connected to the snap spring m. In a modification, the contact is stationary and the carrying member of the resistance elements is moved.
Patent GB-597548-A (GB)
Title: Improvements in or relating to circuits for electrified wire fences
IPC: H05C1/02
Filed: 1945-08-22
Abstract: 597,548. Supply systems for consumpton apparatus; electricity supply; converting. MALLETT, E. Aug. 22, 1945, No. 21489. [Classes 38 (ii) and 38 (iv)] A circuit for intermittently energizing a wire fence, comprises a condenser 1, Fig. 1, which when charged to the ignition voltage of a neon tube 4 from a D.C. source 3, discharges through the primary of step-up transformer 6, the secondary circuit of which includes the fence 5. In the arrangement of Fig. 2, discharge of condenser 1 closes normally open contacts 8 of relay 7 to complete a discharge circuit, through primary of transformer 9, for a second condenser 10. In another arrangement, Fig. 3, initial charging current for condenser 12 opens normally closed contacts 16 of relay 15 which subsequently close to discharge the condenser through primary of transformer 17.
Patent GB-1313977-A (GB)
Title: Ester derivatives of tetrahydrocannabinols
IPC: C07D311/80
Filed: 1971-04-19
Abstract: 1313977 Amino-esters derived from dibenzo- [b,d]pyran ARTHUR D LITTLE Inc 19 April 1971 [13 Feb 1970] 21512/71 Heading C2C The invention comprises compounds of formula and their acid-addition and quaternary salts, wherein n is 0-6; R 1 , R 2 , R 3  and R 4  are each C 1-6  alkyl; R 5  is C 1-20  alkyl or cycloalkyl (C 3-8 )- C 1-6 -alkyl; and R 6  is H or C 1-6  -alkyl. These compounds are prepared by reacting together, in presence of a condensing agent, the corresponding phenol and carboxylic acid. Therapeutic compositions for oral or parenteral administration comprise compounds of the above formula, which have C.N.S. activity.
Patent GB-479451-A (GB)
Title: Improvements in or relating to the vulcanisation of rubber
IPC: C08K5/00
Filed: 1936-08-05
Abstract: Accelerators for the vulcanization of rubber comprise quaternary ammonium compounds in which one valency of the nitrogen atom is satisfied by a salt-forming anion of an inorganic acid, a carboxylic acid, a phenol, an alcohol, a monoalkylsulphonic acid or carbamic acid and the remaining valencies are satisfied by four different carbon atoms at least three of which are carbon atoms of aliphatic radicals and not more than two of which may be carbon atoms together forming part of an alicyclic radical.  Inorganic acids specified are hydrochloric, hydrobromic, sulphuric, thiocyanic, phosphoric, nitric, hydrocyanic and carbonic acids. Carboxylic acids specified are formic, acetic, chloracetic, propionic, butyric, oxalic, stearic, palmitic, oleic, tartaric, maleic, phthalic and benzoic acids. Organic radicals specified which may be attached to the nitrogen atom are aliphatic radicals such as methyl, ethyl, propyl, isopropyl, N-butyl, isobutyl, amyl, isoamyl, and cetyl, which may be substituted by groups such as hydroxyl, halogens and amines; and aralkyl and heterocyclic radicals such as benzyl, phenylethyl, naphthylmethyl, biphenylmethyl, biphenylethyl, anthracylmethyl, and the radicals which together with the pentavalent nitrogen atom form piperidyl and morpholyl rings.  The fourth carbon atom is preferably aliphatic but may be aralkyl or aromatic, e.g. it may be phenyl, tolyl, xylyl, xenyl or other substituted phenyl group, naphthyl, substituted naphthyl, anthracyl, substituted anthracyl and higher aromatic groups.  The Specification as open to inspection under Sect. 91 also states that the salt-forming anion may be sulphhydryl or may be derived from thiophenols or thioalcohols and that the aliphatic radical attached to the pentavalent nitrogen may be substituted by sulphhydryl or ether sulphide groups.  This subject-matter does not appear in the Specification as accepted.
Patent GB-224325-A (GB)
Title: Improvements in or relating to the control of electric motors
IPC: H02P25/12
Filed: 1923-08-27
Abstract: 224,325. Clarke, Chapman, &. Co., Ltd., and Harris, R. C. Aug. 27, 1923. Motors, controlling; rotary transformers; improving commutation, auxiliary means for. -In a continuous-current motor combination in which a motor driving a winch, capstan, &c. is connected to adjustable brushes on a controlling motor, the commutator of the controlling motor is associated with resistances so that the currents in the armature coils short-circuited by the adjustable brushes are limited in value. In the arrangement shown in Fig. 1, the controlling motor 2 has two commutators 3, 4, the segments of which are interconnected bv resistances 7. A hoisting motor 1 is connected to brushes 6 on the commutator 4, and speed regulation and reversal are effected by angular displacement of the brushes 6. Additional motors mav be controlled by providing further adjustable brush-sets on the commutator 4. The series winding 11 of the hoisting motor may be arranged to oppose the shunt winding 13 when the winch is lowering so that, when the motor is driven by the load, the current in the series winding reverses and the two fields assist one another to permit of regenerative braking. Auxiliary commutating poles, movable with the brushes 6, may be provided to act on the resistance connections 7. The second commutator 4 may be dispensed with if the commutator 3 is provided with double the number of segments, the armature winding being connected to alternate segments. In this case the control brush, Fig. 3, may comprise three parts 15 coupled by a resistance 16, the current to the hoisting motor being taken off from the centre part.
Patent GB-752728-A (GB)
Title: Improvements in or relating to bubble blowing pipes
IPC: A63H33/28
Filed: 1954-07-26
Abstract: 752,728. Bubble-blowing pipes. PICK, K. Oct. 4, 1954 [July 26, 1954], No. 21706/54. Class 132(3) A bubble-blowing pipe comprises a body 10 formed of absorbent material, e.g, cardboard or paper, and having cuts 12 made at the bubble-blowing end. A mouthpiece 11,. which may be of wood, metal, plastic or cardboard, is provided and a recess 13 thus formed prevents liquid from running down. into the mouth of the user.
Patent GB-690636-A (GB)
Title: Improvements in or relating to bottle filling machinery
IPC: B67C3/26
Filed: 1950-09-04
Abstract: 690,636. Bottling. FARRINGDON WORKS & PONTIFEX, H. & SONS, Ltd., and HAMILTON, J. G. Dec. 4, 1951 [Sept, 4, 1950], No. 21772/50. Class 125(ii) [Also in Group XXIX] In a counter-pressure bottle filling machine, the bottles are completely filled with liquid against counter-pressure and then uncontaminated gas from a high pressure source is introduced to force liquid from the bottle neck to establish the correct level lying at the outlet end of the liquid filling tube or at an aperture formed in the tube and to insure that the liquid is free from contact with contaminated air. Each filling head comprises a liquid passage 2, a liquid filling pipe 3, a liquid valve 13, gas passages 25, 25A and a valve plug 16 which can be rotated once either for each bottle or for two bottles by a spider 19. The plug 16 is formed with a cam 17 which, at the appropriate  time, allows a follower 8 to rise under the influence of a spring 11 to open the valve 13 which is influenced by a spring 15. It also has a conical part 18 formed with a groove 20 to connect appropriate ports 20, 24, 26 to the gas passage 25. In operation, the plug is moved from the off position (Fig. 2) to a position in which groove 20 connects port 23 to passage 25 whereupon counter-pressure flows from tank chamber V<SP>1</SP> to the bottle. Upon further rotation, the liquid valve 13' opens and port 24 is joined to passage 25 to allow gas displaced from the bottle to flow through a check valve X to tank chamber V<SP>2</SP>. Upon further rotation, port 26 is connected to passage 25, to allow the levelling pressure to act on the liquid.
Patent GB-427072-A (GB)
Title: Improvements in surgical injection needles and the like
IPC: A61M25/02
Filed: 1934-07-26
Abstract: 427,072. Surgical injection and drainage appliances. SALVATI, A. T., and SALVATI, A. A., 31, de Julio, Bernal, Buenos Aires. July 26, 1934, No. 21913. [Class 81 (ii)] Needles, cannulas, trocars, and like instruments used in making intravenous injections or for withdrawing blood comprise a hollow duct portion for puncturing a vein, a head portion, and fixing means adapted to be connected with said head portion and to be secured to an external part of the body by strapping for holding the instrument in its inserted position. The duct portion is adapted to be closed by a removable mandrel. The enlarged head 2 of a needle 3 is slotted to receive a lug 5 formed on a plate 1 and pivoted on a pin 7. Alternatively, a universal or other articulated joint may be employed. The plate 1 is secured to the body by bandages, adhesive tape, or strapping. In a modification, Figs. 4 and 5, the needle head is grooved at 15 to engage the edges of a slot 12 formed in the upstanding member 10 of a U-shape element whose legs 1<a>, 1<b> are connected by a tie 13 and carry guides 14 for the securing strapping. In a further embodiment, the securing means consist of a pair of brackets fixed one on either side of the needle head. The duct portion 17 of the instrument, Fig. 1, may be straight or curved and can be closed by a mandrel 18 which may have a projection 18<a> engaging a slot in the mouth of the instrument to prevent rotation. In the case of a cannula, a sharp mandrel is first introduced for puncturing the vein and is then replaced by a blunt mandrel until the injection or blood withdrawal is effected.
Patent GB-426533-A (GB)
Title: Improvements in sifters or sieves
IPC: B07B1/08
Filed: 1934-07-27
Abstract: 426,533. Sifting-apparatus. BENNET, R., Mere Heath House, Davenham, near Northwick, Cheshire. July 27, 1934, No. 21958. [Class 117] In sifting-apparatus of the type comprising one or a number of superposed flat sieves 1, 2, 3 rotatable about a vertical axis, the feed hopper 47 discharges on to the uppermost sieve and is vertically adjustable by screws 48 to regulate the feed. The sieves are secured in clamping rings 4, 7 which are mounted in superposed relation on a base plate 14 by clamps 13, and distance pieces 10. The central parts of the sieves are re-inforced and secured to a vertical rod 26 by collars 20 and wing nuts 23. The rod is reciprocated to vibrate the sieves by a rotary cam 27, and the base-plate 14, which may be of conical form as shown in broken lines 15, is rotated by the friction drive 31, 32. A stationary casing 16 has troughs 35 to collect the material passing over the sieves, and discharge thereof is effected through shoots 43 by scrapers 39 carried by the sieves.
Patent GB-1425070-A (GB)
Title: Shaft bearing device for a roller blind or the like
IPC: E06B9/50
Filed: 1973-05-08
Abstract: 1425070 Roller blinds HUNLAS BV 8 May 1973 [9 May 1972] 21990/73 Heading A4B A bearing device for the roller shaft of a roller blind comprises a bracket 1 having apertures 4 for securing the bracket to a support and a slot 7 open at one end and leading to a part-circular aperture 8, and a member 11 for receiving an end of the roller shaft and having an undercut portion (14) with parallel sides to fit the slot 7 and rounded ends to fit the aperture 8, the member 11 having projections 19, 20 for releasably retaining the member 11 in engagement with the aperture 8 by engaging either of edges 21 or 22 respectively after the undercut portion 14 of the member 11 has been passed along the slot 7 and the member turned through 90 degrees to its shown position. An aperture 9 is provided in the bracket 1 for use when it is supporting the other end of the roller. The projections 19, 20 are bevelled, Fig. 6 (not shown), to facilitate their movement into and out of engagement with the edges 21, 22. The projection 20 may engage in the aperture 9 instead of the edge 22.