baber/WOPTO huggingface dataset:
Patent GB-321726-A (GB)
Title: Improvements in or relating to the production of rubber substitutes
Filed: 1928-05-04
Abstract: 321,726. Auer, L. May 4, 1928. Divided on 321,689. Fatty oils, sulphuretted.-A substitute for rubber is made by heating fatty oils, for example linseed, castor, fish oil, with modifying agents such as carbonates, sulphites, sulphides, thiosulphates, hydrosulphites which form gases other than oxygen (or substances may be added to form these gases), and the modified product is vulcanized. Rosin may be added to the reaction mixture to prevent the formation of froth. Where the modifying agent is insoluble in the fatty oil, it may be formed in situ by the interaction of relatively more soluble substances. The modifying agent may be applied in the colloidal state and its dispersion in the fatty oil facilitated by auxiliary substances such as slica gel, formaldehyde, or phenol, or by the modifying agents described in Specification 321,724. Plasticizers such as glycerol, triphenyl phosphate, may be added to the reaction mixture, and gases such as hydrogen sulphide, sulphur dioxide, nitrogen may be passed therethrough, or it may be submitted to radiations such as X-rays or made part of an electric circuit. The modified material is vulcanized by treatment with sulphur or sulphur chloride; in the latter case the hydrochloric acid formed is removed by addition of neutralizing agents such as calcium oxide, or an organic amine, or by passing therethrough a gas such as nitrogen, alone or admixed with vapours of basic substances such as ammonia, trimethylamine, or unsaturated hydrocarbons such as ethylene. Accelerators, e.g. trimethylthiuram disulphide, antioxidants, e.g. p-aminophenol, or activators, e.g. zinc oxide, may be used. In an example, fish oil is heated with sodium bisulphite and the product vulcanized with sulphur, using zinc oxide as accelerator. Specifications 287,843, 321,725; and 321,727, [Class 95, Paints &c.], are referred to. According to the Provisional Specification those modifying agents which impart a negative surface charge to the liquid in which they are dispersed are particularly suitable.
Patent GB-359208-A (GB)
Title: Bearing for pump operating lever
IPC: F16C11/04
Filed: 1930-10-21
Abstract: 359,208. Rocking bearings. RATIGAN, J. P., 1213, Santa Fe Avenue, Los Angeles, U.S.A. Oct. 21, 1930, No. 31587. Convention date, Sept. 22. [Class 12 (i).] A pump operating lever A has a bearing member 7 with an arcuate base 11 resting on a bearing member 8 carried by a vertical post C. The base 11 has a hemispherical stud 10 engageable with a conical hole in the member 8 to prevent relative lateral displacement during operation. The support 8 has lugs 16 carrying a pin 15 which passes loosely through the bearing 7 the sides 18 of the latter being curved so that when desired the beam A may swivel in a horizontal plane. The means for securing the support 8 to the top of the post C comprise two pairs of bolts 23 carried in key slots 21, each pair of bolts being connected by a bar 24. The latter have slots 26 for bolts 27 which pass through holes in the post C.
Patent GB-1067099-A (GB)
Title: Improvements in or relating to decorating synthetic plastics containers
Inventor: JAMES STANLEY JAMES
IPC: B41F17/18
Filed: 1964-08-04
Abstract: 1,067,099. Printing apparatus; stencilling bottles. METAL BOX CO. Ltd. April 8, 1965 [Aug. 4, 1964], No. 31596/64. Heading B6C. Apparatus for printing on the opposite flat or arcuate sides of inflated bottles made of synthetic organic thermoplastic material, comprises a plurality of printing stations located in line and in spaced relation, each of the stations including a reciprocable silk screen printer, and actuating means connected to all the printers for simultaneous reciprocation thereof. First and second bottle-holding devices are associated with each printer and arranged each to engage one " flat " side of a bottle with the silk screen of a printer during movement in one direction thereof, each device consisting of a bottle holder and a nozzle through which inflation of the bottle is effected prior to printing thereon and being rotatable at an angular velocity such that a " flat " surface of a bottle carried thereby is moved in the same direction as and at the linear speed of the printer during printing on said surface. Drying stations are located respectively between successive printing stations and following the last printing station. Conveyer means are associated with each drying station and include bottle-gripping devices operable to engage and support bottles for movement through the drying station. Transfer means including cradles 59 or 59<SP>1</SP> are provided operable respectively to transfer bottles from the first to the second bottle-holding devices, from a second bottle-holding device of one printing, station to a drying station bottle-gripping, device, and from a drying station bottle-gripping device to the first bottle-holding device of the next succeeding printing station. The arrangement of the printing apparatus is such that at each printing station while the printer is printing a first side of one bottle it is also printing the second side of a bottle, the first side of which has been printed by the printer.
Patent GB-784918-A (GB)
Title: Improvements in and relating to packing containers of thermoplastic sheet material and methods for the manufacture of such packing containers
IPC: B65D43/00
Filed: 1955-11-07
Abstract: 784,918. Hinges and pivots. KLINGE, P. V. Nov. 7, 1955 [Nov. 6, 1954], No. 31798/55. Class 65(2) [Also in Groups V and XVII] A thermoplastic container having a flanged body and lid (see Group XVII), has bulbous projection 8 depending from the lid flange 4 which is pressed into a corresponding pocket 5 in the body flange 3 and forms a combined fastening and hinge about which a flat lid may be pivoted in its own plane clear of the body.
Patent GB-749810-A (GB)
Title: New derivatives of demethylcolchicine
Filed: 1954-11-03
Abstract: The invention comprises demethylcolchiceine amides of the formula <FORM:0749810/IV(a)/1> in which R and R1 are hydrogen, alkyl, hydroxyalkyl or together form a ring with the N atom.  These are made by reacting HNRR1 with 2-demethylcolchicine ("Substance C") in a solvent, which may be water, an aqueous or anhydrous organic liquid or an excess of the amine reactant.  The reaction may take place from room temperature to 100 DEG  C., under pressure if necessary, e.g. when using alcohol as solvent.  The excess of base is then eliminated, the solvent (if any) removed by distillation or extraction with a non-solvent for the products, and the latter recrystallised from an organic solvent, e.g. alcohol.  Examples show the preparation of 2-demethyl-colchiceinamide and the following N-substituted derivatives:-methyl, dimethyl, ethyl, diethyl, b -hydroxyethyl, n-propyl, n-butyl, n-pentyl, n-hexyl; also 2-demethyl-colchiceine morpholide and piperidide.  The compounds are the aglucones of the colchicoside derivatives of Specification 739,944.ALSO:Compounds of the formula <FORM:0749810/I/1> in association with a solvent or carrier are used for the modification of karyokinesis and the production of polyploids, especially for spreading on cultivated soils or for the pre-treatment of seeds.  In the formula R and R1 are hydrogen, alkyl, hydroxyalkyl or together form a ring with the N atom.  Specification 739,944 is referred to.
Patent GB-1363342-A (GB)
Title: Pulverulent mixture for tanning animal hides and leather
IPC: C14C3/06
Filed: 1972-07-07
Abstract: 1363342 Tanning mixture BAYER AG 7 July 1972 [8 July 1971] 31889/72 Heading C6C A pulverulent tanning mixture for addition to tanning liquors consists of a pulverulent chrome tanning agent, a chlorination product of a C 8  to C 24  paraffin containing 20 to 50 per cent by weight chlorine, and an adduct of 20 to 75 mols of ethylene oxide to 1 mol of an alkylphenol, aralkylphenol, or fatty alcohol, preferred proportions by weight being 100 parts of the chrome tanning agent, 5 to 25 parts of the chlorination product, and 1 to 15 parts of the adduct. Suitable chrome tanning agents, which may be mixed with acidbinding substances such as sodium bicarbonate, sodium carbonate, dolomite, calcium carbonate or sodium sulphite, are basic chromium-III sulphates and masked basic chromium-III salts. The adduct, which acts as a non-ionic emulsifier, may also contain a small quantity of propylene oxide. Anionic auxiliary emulsifiers such as paraffin-sulphonic acids or their salts may be used additionally. According to examples the tanning mixture may be added to a pickling solution of sodium chloride and sulphuric acid for cow pelts, or it may be used for retanning chrome-tanned calf hides which are subsequently processed into suede, or for retaining chrometanned hides which are subsequently processed into napa leather.
Patent GB-956098-A (GB)
Title: Fastener device
IPC: F16B5/12
Filed: 1962-08-20
Abstract: 956,098. Stud and socket fastenings. UNITED-CARR FASTENER CORPORATION. Aug. 20, 1962 [Aug. 22, 1961], No. 31956/62. Heading E2B. A fastener device comprises a metal fastener element 12 positioned in a sleeve or envelope 10 of synthetic plastic material, the fastener element comprising a ring shaped base 24 having opposed arm 26 extending from one side thereof with the ends remote from the base joined by a connecting member 28 having its medial portion bent inwardly to extend towards the base, the sleeve or envelope 10 comprising hollow fastener element-receiving portion 18 formed with an annular outwardly extending flange 14 at one end, the ring shaped base 24 of the fastener element 12 abutting the base of the flange 14 of the sleeve or envelope 10 and the arms 26 and connecting member 28 being disposed in the hollow fastener element-receiving portion, the inwardly bent medial portion of the connecting member 28 being capable of being forced outwardly away from the base so as to be flattened into a substantially straight line condition whereby the arms are displaced outwardly to expand the wall of the sleeve or envelope for enabling the fastener device to be secured in an aperture 32 in a support 30. As shown, in which a moulding strip 34 is snapengaged with the base 14, the member 28 is flattened to the position shown by means of a tool applied to exert pressure on the apex of the member 28. The fastener may be released by a tool having a wedge-shaped end applied against the flattened member 28 in a direction away from the base 24.
Patent GB-506005-A (GB)
Title: Improvements in centrifugal dust separators
IPC: B04C3/04
Filed: 1937-11-19
Abstract: 506,005. Centrifugal dust separators. GRAF, F., and ZERKOWITZ, G. Nov. 19, 1937, No. 31958. Convention date, Doc. 15, 1936. [Class 23] Dust laden gas flows through a helical passage 1 provided with lattices or gratings 3 through which the dust passes into a number of closed independent chambers 4. The chambers may be formed in a single casing by means of partitions 5 which are arranged at every turn or every two turns, and gas is unable to pass from one chamber to another. The dust is discharged from the chambers 4 by means of rotary bucket valves 7 on a common shaft, and a helical conveyer 8 arranged beneath the valves. In a modification the bucket valves 6 are not used, and the dust is discharged through a water seal. The gratings 3 do not occupy more than a quarter of the separator circumference, and the dust chambers may be angularly off-set in relation to each other. For fluctuating quantities of gas two separators are used arranged as shown in Fig. 6. The gas stream enters the larger separator 9 by its inlet 11 and part of the stream passes to the outlet 14 while the remainder passes to the smaller separator 10 for further treatment. The outlet 14 is throttled by a weight-or spring-controlled flap 16 which remains completely closed when the gas stream is small, so that all the gas passes through the second separator. As the quantity increases, the pressure increases until the flap 16 is lifted to permit part of the stream to pass.
Patent GB-810654-A (GB)
Title: Improvements relating to the spinning of yarn from hard-fibred materials
Inventor: MACKIE JOHN PRINGLE
IPC: D01H1/00
Filed: 1954-11-04
Abstract: 810,654. Gill spinning frames; driving arrangements; yarn guides. MACKIE & SONS Ltd.. J. Oct. 26, 1955 [Nov. 4, 1954], No. 31996/54. Classes 120(1) and 120(2) A gill spinning frame for hard fibres has a flyer 21 turning about a vertical axis, and haul pulleys 12, 13 separated from the flyer 21 and having an effective axis inclined at an angle to that of the flyer. The effective axis of the haul pulley assembly 7 may be substantially in line with the fibres 2 emerging from the faller bed 1. A conductor surface 22 may be interposed between the haul pulleys 12, 13 and the flyer 21. The haul pulley assembly 7 and flyer 21 may be driven by a common rope 10 from a driving pulley 30. Specifications 653,870 and 709,597 are referred to.
Patent GB-1359707-A (GB)
Title: Transistor for operation at very high frequencies and a method  for the manufacture thereof
IPC: H01L29/00
Filed: 1971-07-07
Abstract: 1359707 Transistor manufacture THOMSONCSF 7 July 1971 [9 July 1970] 32000/71 Heading H1K The periphery of the emitter region of a transistor is defined by a groove formed by ion machining. The transistor described is made by first diffusing phosphorus through an aperture in an oxide mask to form an N+ region in an epitaxial N layer on a N + type silicon wafer. An ion pervious negative electron resist is then deposited over the masked wafer and an ion impervious comb-shaped pattern formed in it over the N+ region by treatment with an electron beam from a scanning electron microscope. The wafer is then bombarded with argon ions with energies less than 10000 eV. to machine away the exposed parts of the N+ region to leave only a comb-shaped region. The base region is then produced by bombardment with boron ions and annealing to give a doping of 5 x 10<SP>18</SP> atoms/c.c. and a base thickness varying from À2-À4 Á beneath the emitter region to À8 Á elsewhere. Interdigitated base and emitter electrodes are finally provided with the aid of a mask produced by scanning with an electron beam.
Patent GB-821067-A (GB)
Title: Improvements relating to screw-driving machines
Inventor: PATTISON WALTER TREHEARN
IPC: B25B23/04
Filed: 1956-10-20
Abstract: 821,067. Screwing-up screws. RUSSELL AUTO-FEED SCREWDRIVERS Ltd. Oct. 17, 1957 [Oct. 20, 1956], No. 32005/56. Class 83 (3). In a screw-driving machine in which screws from a hopper are fed, through a guide 15, to a nozzle 10 receiving the rotatable and axially - movable screw-driving spindle 13, which is driven through a torque-limiting clutch or device 20, by an input-spindle 14, and a delivery control device is associated with the guide for regulating the delivery of screws to the nozzle, the extent to which the screws are driven home is determined, independently of the resistance encountered in driving them, by a brake 21, 29 associated with the spindle 13, and arranged to cause the clutch 20 to slip when the end of the spindle 13 is level with, or at a predetermined height above, the lower end of the nozzle. Thus, the heads of the screws need not be driven against the work. The spindle 14 may be driven by the spindle of a drilling-machine, the drill-post of which bears against an arm (not shown), projecting from a member 24, in which rotates the brake-and-clutch assembly 20, 21, the arm holding the member 24 against rotation. A guide-rod 25, slidable in a bore in the member 24, is attached as by screw-threads or forcefitting to the lower-guide 15, which receives screws from a deflection tube (not shown), connected by a universal joint to a guide-member on the hopper, the deflection tube thus accommodating feed movements of the hopper. The non-rotatable part of the brake, i.e. the walls of a groove 29, is secured to or, as illustrated, is formed integrally with, the lower guide 15, the rotatable annular brake shoe 21 being keyed or fixed by screw-threads to the spindle 13. As illustrated, the shoe 21 engages screw-threads on a sleeve 17 which is connected by screw-threads to the spindle 13 and to the lower element 20 of the toothed clutch. The part 29 or, as illustrated, the part 21 of the brake, may be adjustable, being formed in two parts 33, 34 connected by screw-threads 35, 36 and locked by a screw 37 in the part 34 and engaging pockets 38 in the part 33, which bears marks indicating the position of the pockets. Alternatively, a set of interchangeable parts 34 of different depths are provided, or washers could be inserted between the faces 39, 40. The nozzle 10 is slotted at its lower end, and jaws engage beneath the heads of the screws to prevent premature delivery of the screws from the lower end of the nozzle. The screw-driving bit 16 is replaceable.
Patent GB-838954-A (GB)
Title: Thermoplastic film materials
IPC: B29C48/03
Filed: 1957-10-14
Abstract: A tubular film is made by extrusion of an at least partially crystalline polypropylene.  Polypropylene of molecular weight above 50,000 and of over 50% by weight crystalline content may be extruded at from 50-100 DEG  C. above the softening point of the material, e.g. at about 250 DEG  C.  Cooling after extrusion may be effected in air, or in a bath of liquid at about 20 DEG  C., and the tubular film is preferably led into the bath while the polypropylene is at a temperature such that it is still soft.  The bath may contain a sizing or other modifying agent, e.g. an antistatic agent.  In the preferred embodiment, polypropylene is extruded through an annular die and expanded by gaseous pressure, and then cooled in a liquid bath which acts as a seal to maintain the gaseous pressure in the tube, which may then be slit and collected as a nontubular film.  The end of a portion of tubular film may be heat-sealed to form a bag.
Patent GB-1017326-A (GB)
Title: Improvements in swash plate type hydraulic pumps or motors
IPC: F01B3/00
Filed: 1964-08-06
Abstract: 1,017,326. Reciprocating pumps. G. A. WAHLMARK. Aug. 6, 1964 [July 7, 1964], No. 32107/64. Heading F1A. In a pump or motor, the revolving cylinder block 90 is prevented from unseating from the valve plate 76 by a resilient metal ring 120 acting between a recess 116 in block 90 and an abutment 110 on a housing 40. Ring 120 is split at 122, Fig 2, and held against rotation by a pin 135. The dimensions of ring 120 may be such that it resiliently biases block 90 against valve plate 76. The cylinder block and valve housing assembly is slidable on a back member 30 by a piston 105, to vary the stroke, a pin 43 locating the assembly on track 30. Spring-loaded sleeves 61, Fig. 2, slidably engage track 30 to connect casing ports 11, 12 to valve plate ports 78, 79 Block 90 is coupled to drive flange 151 by ring gears 181, 185 for synchronous rotation. Connecting rod balls 172 are retained in drive flange 151 by resilient lip portions 173. Drive flange 151 is radially supported by slipper bearings 165 and axially supported by a bearing 152 of P.T.F.E.
Patent GB-786428-A (GB)
Title: Improvements in or relating to moulding devices for use in the flour confectionery and baking trades
IPC: A21C11/00
Filed: 1954-11-06
Abstract: 786,428. Making flour confectionery. WHITE, F. Nov. 2, 1955 [Nov. 6, 1954], No. 32178/54. Class 87(2). In a baker's tray 9 is placed a plate-like mould or template 10 having holes 11 extending therethrough. Then the holes are filled with a cake mixing &c. and the mould is lifted off, as shown in Fig. 3, leaving shapes or heaps 14 which are then baked. When the cake mixing is filled into the holes it may be heaped therein or wiped level as with a doctor blade 20 slidably located in longitudinal grooves 21 in the mould. The holes may be oval, arcuate, square or diamond-shaped. Round holes may be not aligned, as shown, but staggered.
Patent GB-761780-A (GB)
Title: Microwave transducers for coupling microwave energy between waveguides
IPC: H01B7/00
Filed: 1953-11-20
Abstract: 761,780. Impedance matching arrangements.. STANDARD TELEPHONES & CABLES, Ltd. Nov. 20, 1953 [Jan. 9, 1953], No. 32230/53. Class 40 (8). A " line-ground " transmission line of the type described in Specifications 704,050, 708,601 and 761,764, comprising conductors 1, 2 spaced by dielectric material 3 is coupled to a rectangular waveguide 6 by passing it through a slot 4 in the guide and coupling the conductor 1 to the wall 5 of the guide and extending the area of the other conductor 2, within the guide, as by a separate or integral conductor 7, Fig. 2. The conductor 1 and dielectric 3 may terminate at the wall 5 or part way across the guide, respectively. A stub 8 may be of such a size to provide optimum impedance matching for the operating frequency. A trap 9 may be adjusted by a plunger 10. In a modification (Figs. 3 and 4, not shown), the conductor 2 is provided with a conductive post coaxially of the guide and extending in the direction of propagation, and the conductor 1 may extend across the guide to form the end plate of the guide. In a further modification (Fig. 5, not shown), the conductor 2 is provided with a circular or elliptical part in place of the conductor 7. This part may also have a conductive post. As shown in Fig. 6, the guide may have a conductor 16 fixed to its side walls, and the line may be adjusted vertically in slots 14, 15 to allow the length of the stub 19 to be adjusted for optimum impedance matching. A trap may be formed by the end wall 13.
Patent GB-1171017-A (GB)
Title: Apparatus for Carrying Out Metallurgical Treatment.
IPC: F27B9/04
Filed: 1967-07-13
Abstract: 1,171,017. Heat treatment furnaces. OUTOKUMPU OY. 13 July, 1967 [13 July, 1966], No. 32391/67. Heading F4B. Metallurgical heat treatment apparatus, particularly suitable for the production of low carbon ferro-chromium comprises a low pressure process chamber 2 lined with insulating material 9 and containing a furnace 7 having electrical heating elements 11. Charging and discharging chambers 1 and 3 respectively are connected to the process chamber through pressure tight doors 4. A vacuum pump (12, Fig. 2, not shown), is connected to the chamber 2, similar evacuating means (not shown) being connected to the charging and discharging chambers. In operation a charge 5 enters the charging chamber 1 which is then evacuated to a pressure corresponding to that of chamber 2 and is carried through the furnace by a roller type conveyer 6 to exit through discharging chamber 3. A water-cooling arrangement 10, together with a suitable inert gas, is provided within the chamber 3 for cooling the charge leaving the process chamber 2; alternatively, if required, the charge may be vacuum melted in a vacuum chamber (not shown). The chamber 2 may be subdivided into a number of compartments, each one having a furnace 7 therein, the first one being a pre-heating furnace.