baber/WOPTO huggingface dataset:
Patent GB-846926-A (GB)
Title: Improvements in or relating to rotary cutter drums of mineral-mining machines
Inventor: ANDERSON JAMES
IPC: E21C27/02
Filed: 1957-04-02
Abstract: 846,926. Mineral-mining machines. ANDERSON BOYES & CO. Ltd. April 24, 1958 [April 2, 1957], No. 10715/57. Class 68(1). Mounted on the curved periphery of a cutter drum 12 of a mineral-mining machine amid the cutter picks 13 is at least one upstanding helical blade or plate 14, which serves to deflect cut mineral to the end of the drum adjacent a face conveyer along which the machine travels and to aid in the loading of this mineral directly or indirectly on to the conveyer. The blade or plate may be a single continuous structure or may be formed of a number of sections 14a, 14b, 14c of short length, these sections being independently secured to the drum in a longitudinal overlapping relationship to one another.
Patent GB-1254215-A (GB)
Title: A process and mould for producing metal refractory composite structures
IPC: B22D27/04
Filed: 1969-02-28
Abstract: 1,254,215. Casting composite articles; casting processes. UNITED AIRCRAFT CORP. 28 Feb., 1969 [20 March, 1968], No. 10716/69. Heading B3F. [Also in Division F1] A composite structure of alloy 28 and refractory 18 (e.g. alumina-based ceramic) is made by locating at least one refractory insert 16 in a mould 4 (e.g. made from alumina slurry) standing on a chill plate 6 and introducing the alloy into the lower part of the mould, as from a pipe 12. The mould is preheated by an electric coil 14, or susceptor and induction coil, and the plate 6 cooled by water circulated in ducts 8 to establish a temperature gradient so that the solidifying alloy has columnar structure in portions 22, 30 of the mould and single crystal wires 28 are formed in bores through the refractory insert 16. The wires 28 may be of a uniform size or non-uniform sizes and interconnect the columnar structured end pieces so that the refractory portion of the composite structure is compressed. The composite structure may be a gasturbine nozzle stator vane or a structure having application in a gas-turbine rotor or prestressed pressure vessel. The alloy 28 may be a Ni or Co base alloy, e.g. a superalloy.
Patent GB-182240-A (GB)
Title: Improvements in or relating to the depilation of hides and skins
IPC: C14C1/06
Filed: 1921-04-13
Abstract: 182,240. Richter, O. April 13, 1921. Addition to 175,314. Treatment preliminary to tanning.-The process set forth in the Parent Specification for depilating hides or skins by means of gaseous ammonia in certain concentrations, is improved by defatting the skins prior to or in the early stages of the ammonia treatment. In addition, the flesh sides of the skins are protected from the action of the ammonia, warmed concentrated ammonium hydroxide solution is used instead of steam to maintain the necessary degree of moisture in the chamber, the hides or skins and the gaseous or vaporous contents of the chamber are kept in relative movement and the unconsumed ammonia is expelled from the chamber by warm air or other warm gases which do not react with ammonia. The skins may be defatted by extraction with solvents, by saponification with alkali solutions, or by regulating the temperature of the chamber in the initial stages of the ammonia treatment so as to effect saponification with the production of ammonia soaps. To protect the flesh sides, two skins may be placed in contact or the flesh sides may be provided with coatings impervious to ammonia. The unconsumed ammonia expelled from the chamber may be absorbed in cold water and concentrated for use in maintaining the required degree of moisture.
Patent GB-429962-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: H01J17/00
Filed: 1934-04-10
Abstract: 429,962. Electric discharge tube signs. ROTHER, F., 6, Bozenerstrasse, Sch÷neberg, Berlin. April 10, 1934, No. 10815. [Class 3 (ii)] [See also Group XL] Electric discharge lamps, for advertisement or similar purposes, have electrodes made of substantially round wire arranged either side by side or one above the other, at least one electrode being in the form of continuous written characters. As shown in Fig. 1 the electrodes 2, 3 in the form of letters are separated by a small ignition gap 4. More than two words can be arranged in one tube, electrodes of similar polarity being connected together outside or inside the tube. The lamp may be mounted on a pedestal for window display. In continuous current lamps, the dark electrode may be in the form of a line 3, Fig. 4, running below the cathode 2, or it may be shaped as a frame for the cathode, or as a second line of writing following the cathode. Specifications 415,111 and 415,113, [both in Group XL], are referred to.
Patent GB-1011863-A (GB)
Title: An improvement in or relating to apparatus for dispensing liquid
Inventor: EARDLEY JAMES EDWARD
IPC: G01F11/08
Filed: 1963-03-19
Abstract: 1,011,863. Delivering measured quantities of liquid. MILLS BROTHERS (SHEFFIELD) Ltd. March 17, 1964 [March 19, 1963], No. 10820/63. Heading B8N. An apparatus for dispersing measured quantities of liquid comprises a manually-operable valve 12 for controlling the supply of liquid to a metering device 14, the valve being provided with a detent 72 which is adapted to prevent the valve from being turned to the closed position during filling of the measuring device, a plunger 74 (not shown) of the detent device being disposed within and actuated by the flow of liquid. The detent 72 is formed with a projection 76 connected to the plunger 74 by webs 78, the projection being arranged to engage with slots 58, 60 in a flange 54 formed on the valve member. In operation, with the valve in the position shown, pressurized liquid is fed through an inlet 70 into the valve housing, then via a port 66, passage 86 and ports 90, 26 to act against one side of a flexible diaphragm in the measuring device (such as more particularly described in copending Specification 1,011,862), the liquid on the other side of the diaphragm being forced through an outlet 80 via ports 24, 84, slot 62 and a passage 82. During the dispensing operation, the valve cannot be turned to its alternative position since the flow of liquid in the inlet 70 maintains the detent in the slot 58.
Patent GB-1249217-A (GB)
Title: Production of polyamide moldings
IPC: B01J14/00
Filed: 1969-02-28
Abstract: 1,249,217. Moulding polyamide. BADISCHE ANILIN- & SODA-FABRIK A.G. 28 Feb., 1969 [2 March, 1968], No. 10826/69. Heading B5A. A process for the production of bubble-free mouldings by activated anionic polymerization of lactams in which a melt containing a catalyst in reservoir 1 and a melt containing an activator in reservoir 2 are heated separately to polymerize in a mould, is characterized in that the melt containing a catalyst and the melt containing an activator are supplied simultaneously to a mixing zone 12 from which the united melt is forced upwardly into the mould 15. Valves 13 and 14 control the supply of the melts into the mixing zone 12 the valves being connected to circuits 3, 3a, 4, 4a supplied from the reservoirs 1 and 2 respectively and including valves 7 and 8, 9 and 10, and pumps 5 and 6 respectively. Lactams having six to twelve ring carbon atoms are said to be suitable. Alkali metal lactams are suitable catalysts and suitable activators are N-acyllactams, isocyanates, N- cyanolactams, substituted ureas, reaction products of carbamyl chlorides with heterocycles such as imidazole. Additives, e.g. reinforcements such as glass fibre; fillers such as metal powder, slate flour, diatomaceous earth; lubricants; delustrants; and stabilizers may be used. The mixing chamber and mould may contain an inert gas such as nitrogen. The weights of the constituents, the flow rates, filling times and mould dimensions are given.
Patent GB-417072-A (GB)
Title: Improvements in or relating to the manufacture of vanillin and its homologues and other parahydroxy aldehydes such as protocatechuic aldehyde
IPC: C07C45/28
Filed: 1933-04-11
Abstract: Vanillin or its homologues or protocatechuic aldehyde or other p-hydroxyaldehydes are manufactured by oxidation of iso-eugenol or the equivalent body parent to the aldehyde to be produced, by means of a nitro-compound in the presence of caustic alkali and in the presence of azobenzene or a homologue thereof, e.g. p-azotoluene, as solvent.  The isoeugenol or equivalent body is advantageously first produced from eugenol or its equivalent by isomerization in the presence of caustic alkali and in the presence of azobenzene or a homologue thereof.  In an example, eugenol (or clove oil) is heated to 190--200 DEG  C. with caustic potash, water and azobenzene, the mixture is cooled to 120 DEG  C., caustic soda solution is added and nitrobenzene is then run in slowly.  Water is then added, unchanged nitrobenzene removed azobenzene filtered off and used in subsequent batches and vanillin isolated from the product.  Isoeugenol obtained by isomerization of eugenol otherwise than in the presence of azobenzene, or by any other means, may be employed as starting material, in which case azobenzene is added before the caustic soda and nitrobenzene.  In some cases, e.g. in the oxidation of 1-hydroxy-2-ethoxymethoxy-4-propenylbenzene, some azoxybenzene is produced in addition to azobenzene, in which case the mixture may be used as solvent for subsequent batches or the azoxybenzene may first be reduced to azobenzene by means of iron powder or other suitable reducing agent.  If the nitrobenzene be replaced by p-nitrotoluene or a homologue thereof or other nitro-body the resulting azotoluene or other azo-body may be used in subsequent batches.  Specifications 271,818, 271,819, and 285,451, [all in Class 2 (iii)], are referred to.
Patent GB-1347764-A (GB)
Title: Heat-aged sintered cobalt-rare earth intermetallic product and  process
IPC: C22C1/04
Filed: 1971-04-22
Abstract: 1347764 Cobalt - rare earth alloys GENERAL ELECTRIC CO 22 April 1971 [30 April 1970 2 Nov 1970] 10879/71 Headings C7A, C7D A sintered cobalt-rare earth intermetallic product ranges in composition from a single solid Co 5 R phase to that composed of Co 5 R phase and a second phase of Co-R in amount up to 30 by weight per cent of the product and richer in rare earth metal than Co 5 R, the sintered product having been heat-aged at a temperature within 400‹ C below the sintering temperature so as to precipitate a Co-R phase richer in rare earth metal than Co 5 R in amount to increase the intrinsic coercive force and/or normal coercive force by at least 10%, R being a rare earth metal of the lanthanide series or yttruim, or a mixture thereof. In examples powders of base alloys containing varying amounts from 66 to 68À2 by weight per cent of Co and the remainder Sm or mixture of Sm with other rare earths were mixed with Co-R alloy powders richer in rare earth content, magnetically aligned in a magnetic field, pressed, sintered at temperatures of 1075‹C for 1 hour or 1100‹C for up to 20 hours and aged at temperature of 900‹C - 1000‹C for up to 17“ hours.
Patent GB-542282-A (GB)
Title: Improvements in and relating to the reinforcement of light weight building boards, and slabs, and the like
IPC: E04B5/02
Filed: 1940-06-27
Abstract: 542,282. Building slabs. CARPENTER, G. June 27, 1940, No. 10939. [Class 87 (i)] A unitary slab &c. is formed of cement, or plaster; or a composite material of low specific gravity, such as diatomaceous, earth, wood shavings &c. bound together by a cement-wash. &c. and is reinforced by ribs or strips of concrete disposed, in grooves 8, Fig. 2, and reinforced by metal bars &c. 9, 10. As shown in Fig. 6, the grooves 20 may be formed in intersecting ribs 18, 19. The reinforcement may be in the form of folded strips.
Patent GB-320598-A (GB)
Title: Improved process of and means for obtaining phosphorus from phosphates
IPC: C01B25/02
Filed: 1928-04-13
Abstract: 320,598. Wade, H., (Soc. Italiana per le Industrie Minerarie e Chimiche). April 13, 1928. Drawings to Specification. Extracting.-In a process for the production of phosphorus by reducing phosphates, which have previously been treated with an acid, by heating with iron in the presence of silicic acid, the iron is obtained by reduction of the powdered oxide by means of hydrocarbons such as naphtha.
Patent GB-289629-A (GB)
Title: Improvements in or relating to self-propelled cable ploughing vehicles
IPC: A01B3/66
Filed: 1927-04-25
Abstract: 289,629. Fowler, C. H., and Hodgson, H. April 25, 1927. Alternative prime movers. - A self-propelled cable ploughing tractor is provided with alternative sources of power each of which can drive the winding drum and the road wheels. In the construction shown an internal-combustion engine 2 and an electric motor 3 are provided each of which can drive a bevel pinion 7 through a clutch 6. The bevel pinions drive a cross-shaft 13 through reversing bevel wheels 9 and twospeed chain gear 10, 11, 12, and the shaft 13 can drive (1) the road wheels through two-speed spur gear 14 - - 17 and chain gear 19, or (2) a winding drum 25 through two-speed bevel gear (not shown) and gearing 23. The electric motor is supplied with power from an external source through a cable wound on a drum 5, a voltage transformer 4 being provided on the tractor.
Patent GB-889228-A (GB)
Title: Omega-carboxyalkylpenicillins
IPC: C07D499/48
Filed: 1960-03-29
Abstract: Penicillins of the formula <FORM:0889228/IV (b)/1> where n is an integer from 0 to 15, such as 4-carboxybutyl, 5-carboxyamyl, and 6-carboxyhexyl penicillin, are prepared by fermenting in an aqueous nutrient medium under submerged aerobic conditions a strain of Penicillin chrysogenum in the presence of a percursor of the formula HO2C-(CH2)n-CO2H in a ratio of 0.1 to 1.0 g./100 ml. until substantial antibiotic activity is imparted to the reaction medium. The penicillins, which are hydrophilic, are obtained from the culture media by first extracting other penicillin at acid pH with organic solvents, and then fixing the desired penicillin on suitable adsorbing material, such as charcoal or alumina, from where it is eluted with acetone or other water-miscible organic solvent.
Patent GB-708588-A (GB)
Title: Improvements in or relating to sole constructions and methods of making the same
IPC: A43B3/10
Filed: 1952-05-02
Abstract: 708,588. Soles for footwear. FLORSHEIM SHOE CO. May 2, 1952 [Nov. 9, 1951], No. 11135/52. Class 17(2) A sole blank is channelled or skived around at least a portion of its marginal edge to form a relatively thin edge portion 12 which is trimmed to leave a portion of less width. A generally triangular strip 15 of leather or other material is fastened to the edge of this narrower portion to follow the contour and a trimming strip 18, of imitation leather or natural or synthetic resin is then applied in the channel and over the strip 15 as shown. If desired the sole blank may be trimmed around its lower edge portion to be flush with the outer face of the strip 18. A raised platform may be provided on the underside of the sole blank.
Patent GB-1161367-A (GB)
Title: Semiconductor Devices
Inventor: SCHARLI OTTO
IPC: H01L21/60
Filed: 1967-03-09
Abstract: 1,161,367. Semi-conductor devices. BROWN, BOVERI & CO. Ltd. 9 March, 1967 [11 March, 1966], No. 11234/67. Heading H1K. The diode shown has a semi-conductor element comprising a silicon disc 1 soldered to a molybdenum carrier-plate 4, the free faces of the disc and carrier-plate being coated respectively with layers of gold-antimony alloy 2 (to produce a PN junction) and soft solder 5. Spread of the gold-antimony alloy is limited by silicone rubber 3 protecting the edge of the disc. Perforated molybdenum discs 8 are placed between the two layers and their respective massive contacts 6, 7. These contacts are urged together so that during operation the perforated discs sink into the softened layers. The pores of the discs may be pre-filled with metal like that of the adjacent layers. The invention envisages devices having only one perforated disc.
Patent GB-1278530-A (GB)
Title: Improvements in and relating to a method of and apparatus for automatically packaging radioactive sources
Inventor: FRADIN JEAN
IPC: G21F7/06
Filed: 1970-03-09
Abstract: 1278530 Welding by pressure COMMISSARIAT A L'ENERGIE ATOMIQUE 9 March 1970 [7 March 1969] 11248/70 Heading B3R [Also in Divisions B4 and B8] Apparatus for packaging radio-active grains 2 (see Division B8) in metal envelopes 1 comprises a welding station P7 where balls 3 are welded to at least one end of the envelopes 1 using a 5 KVA resistance weld in an atmosphere of argon (2 1./mm.) under a force of 20 neutrons for 0À04 sec. (2 periods). Each envelope 1 is contained in a sprung-loaded, part-conical gripper 7 located within a sprung-loaded cylindrical sleeve 8 positioned in a peripheral aperture in an intermittently rotating turntable 5. For welding, a bottom electrode 10 contacts the sleeve 8 and a top electrode 24 descends to steady the ball 3 and to engage the gripper 7 with the sleeve 8 so that clamping and contact continues until the clamping force reaches the preset value whereupon the welding current is switched off and a signal is transmitted to a logic circuit which initiates ejection of the sealed envelope. Welding does not take place if the station receives a signal from a preceding work-station indicating the presence of a faulty item. The welding machine is operated by a pneumatic actuator driven by a set of solenoids and has its power, drive and supervisory facilities located outside a radio-active shield and its electrodes located within. The envelopes 1 may be open-ended cylinders sealed at each end by a ball 3.
Patent GB-1417955-A (GB)
Title: Pumps
IPC: F04B53/12
Filed: 1974-03-14
Abstract: 1417955 Reciprocating pumps SOC TECHNIQUE DE PULVERISATION 14 March 1974 [28 March 1973] 11298/74 Heading F1A A spray pump comprises a piston 7 with a through bore controlled by a spring-loaded valve 11 engageable with a seat formed on the base surface of the piston, the area of the base surface being greater than the seat-covering area of the valve and bleeds 10 being formed in the seat, as shown, or in the valve, so that on downward movement of the piston, when a predetermined pressure is reached in the cylinder 4, the piston base surface deflects away from the valve for flow to take place through bleeds 10 to spray nozzle 17, closure of the bleeds occurring when the cylinder pressure falls at the end of the stroke. The bleeds 10 are inter-connected by an annular channel 9. Piston 7 may be integral with stem 8, as shown, or attached thereto, Figs. 4 and 5 (not shown). In its uppermost position shown, piston 7 closes a vent 14 for reservoir 2.
Patent GB-671035-A (GB)
Title: Heating device for producing filaments of glass from glass rods
IPC: C03B37/029
Filed: 1948-04-24
Abstract: 671,035. Radiant heating devices. SCHULLER, W. April 23, 1949 [April 24, 1948], No. 11323/48. Class 51 (i). [Also in Group XI] A heating chamber for producing fibres from glass rods a has pairs of oppositely disposed heating strips 3 between which the rods a pass, the heating strips 3 being fitted into top and bottom flanges 2a of vertical wall supports 2 so as to leave a space 4 between each strip 3 and its associated vertical wall 2. The heating strips 3 have an angle section, T-section or arched section to form between the strips a narrow zone 5 in which the heating is intense. Below the heating strips there may be a cooling device 6 to congeal the threads c and the heating chamber may have a cover-plate 7 apertured to receive the glass rods a. One or more heat vents 8 may be provided in the upper flanges of the supports 2. The heating strips 3 may be heated by the passage of current therethrough or by gas flames, as shown. In the former case, the strips 3 are preferably made of steel of high specific resistance having low co.efficients of variation of properties with temperature.
Patent GB-352942-A (GB)
Title: Improvements in or relating to wave responsive apparatus
IPC: H03H9/48
Filed: 1930-04-09
Abstract: 352,942. Wireless receiving systems. ROBINSON, J., 29, George Street, Hanover Square, London. April 9, 1930, No. 11348. [Classes 40 (iii) and 40 (v).] In a wireless or like receiver comprising a highly selective resonator other than a piezoelectric device a shunt circuit is provided for combining signal energy with the output of the resonator of such value and phase as to reduce or eliminate an interfering signal. The Figure shows a receiver in which the resonant device comprises the tuned circuit 15 having a reactive coupling 17 and the shunt circuit comprises phase adjusting means 23, 24 and a one-way device, the neutralized valve 25. In a modification (Fig. 2, not shown) a tuning fork is used as a resonator. Specifications 293,446, 325,232, 337,049, [all in Class 40 (v), Wireless signalling &c.], 344,869, and 350,014, are referred to.
Patent GB-270484-A (GB)
Title: Improvements in or relating to the manufacture of sports implements and apparatus therefor
IPC: A63B59/00
Filed: 1926-04-30
Abstract: 270,484. Jacob, S. M., (Field, J. H.). April 30, 1926. Gravity, determining centre of.-In manufacturing sports implements, such as tennis or like rackets, the balance of the implement is determined by swinging it as a pendulum and material is added or removed until the desired balance is obtained. The racket handle 2 is secured within a box 1 by means of clamping plates 6 actuated by screws 5. A gauge bar 9 determines the distance at which the clamp is fixed from the end of the handle. The box 1 carries pointed bearing-pins 11, 12 which may be placed on the arms 14 of a supporting bracket 13 so that the racket and its attached clamp may be oscillated upon the pins and the time of a number of oscillations may be ascertained thus permitting a figure representing the balance of the racket to be calculated. Additional pins 16 facilitate a similar operation with the racket turned through a right-angle. In a modification Fig. 4, the head of the racket is clamped between spring arms 18 to a wire 19, and the racket is swung about bearing points 21.
Patent GB-114888-A (GB)
IPC: F22B37/28
Abstract: 114,888. Fay, H. April 18, 1917. Separators.-The steam passes hetween a series of intermeshing annular or spiral baffles 5, 13. which are provided with means for adjusting the amount by which they intermesh. The baffles 5 project from a plate 21 dividing the water and steam spaces of an evaporator, perforations 7 being formed in the plate to allow the separated water to drain back through a-chamber 8 into the water space. The baffles 13 project from a plate 12 suspended from the top of the evaporator by a rod 14 engaging with a hand-wheel 17, by means of which the plate may be moved towards or away from the plate 21. The steam enters at the centre of the baffles through an opening 5 in the plate 21. The edges of the baffles may be beaded, flanged, or curved inwardly.