baber/WOPTO huggingface dataset:
Patent GB-1377295-A (GB)
Title: Production of formamides
IPC: C07C231/06
Filed: 1972-08-24
Abstract: 1377295 N-alkyl, N-cycloalkyl and N-aralkyl formamides DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 24 Aug 1972 [3 Sept 1971] 39404/72 Heading C2C In a process for the production of N-alkyl, N- cycloalkyl or N-aralkyl formamides by the reaction of an olefin or an alcohol with hydrogen cyanide in the presence of an acid (i.e. the Ritter reaction), the formamide is extracted from the unneutralized acid reaction solution with a polar acid-stable solvent and is subsequently recovered from the extract, e.g. by distillation under vacuum. The solvent is suitably one or more tri-substituted phosphoric acid esters e.g. tri-n-butyl-phosphate or trioctyl phosphate, or one or more tetra-substituted urea derivatives, or a mixture thereof. The extraction is suitably carried out in the presence of an aliphatic or aromatic hydrocarbon having a relative density of up to 0À90, and the extract is preferably washed with water prior to the recovery of the formamide. Examples relate to the purification of N-t-butyl formamide.
Patent GB-1126460-A (GB)
Title: Improvements in internal combustion percussion tool and hammer piston locking means therefor
IPC: B25D9/10
Filed: 1967-08-30
Abstract: 1,126,460. Percussive tools. ATLAS COPCO AB. 30 Aug., 1967 [6 Sept., 1966], No. 39589/67. Heading B4C. An internal combustion engine-driven percussive tool comprises a motor piston reciprocable in a cylinder 11 and adapted to reciprocate in a housing 10 a hammer piston 13 having an impact end 19, a lock member 25 being arranged to be clamped between a supporting surface 17, 18 and the impact end so as to immobilize the hammer piston in the housing. The lock member is in the form of a wedge 25 adjustable on a bar 28 by means of a screw-and-knob device 26, 27; the lock member is mounted in a recess 21 as shown, when it is required to prevent the hammer from impacting the tool bit 14. In normal operation of the tool, the lock member is removed from the recess and the latter sealed by a pivotablymounted cover (22, Fig. 4). In modifications, the hammer piston may be retained in its raised position shown by means (a) of an eccentric (31, Fig. 5) adapted to engage with the end 19, the eccentric being rotated by a lever, or (b) by a spindle (35, Fig. 6) adjustably mounted in a pivoted yoke member (37), or (c) by a threaded shaft (35, Fig. 7) adjustably secured to the tool retainer 41 from which the tool has been removed.
Patent GB-977559-A (GB)
Title: Process and device for the generation of electromagnetic waves
IPC: H03B7/10
Filed: 1962-10-19
Abstract: 977,559. High frequency discharge tubes. ELEKTROPHYSIKALISCHE ANSTALT BERNHARD BERGHAUS. Oct. 19, 1962 [Oct. 20, 1961], No. 39599/62. Heading H1D. Apparatus for producing electromagnetic waves in the frequency range of 10-100 gigacycles per second (i.e. millimetre, centimetre, decimetre ranges) comprises an anode 30 and a cathode 29 in the space 31 between which is produced an electric discharge, the space 31 being filled with gas having a density greater than 3.3 x 10<SP>14</SP>molecules per cubic centimetre and having a pressure of 5.6 millimetres mercury, the product of the field producing the discharge and the mean free path of the electrons being a multiple substantially N times, preferably 5N times, greater than the ionisation potential of the gas where N is the sum of the atomic numbers of the atoms in the gas and is preferably 10. The discharge space 31 is sealed by a dielectric element 37 such as glass and has a waveguide 35 attached thereto which acts as a cavity resonator producing a wide range of frequencies. The unwanted frequencies are suppressed by disc type filters placed in the waveguide 35; the remaining frequencies being radiated by a horn antenna 36. A cooling system 32, 33 is provided for the cathode 29 whilst the gas in the discharge space 31 is cooled by a system 34. The cooling systems may be of the thermal siphon type or may be a pumped system. Additional cooling may be provided by immersing the anodecathode assembly in a distilled water bath. Examples of a suitable gas are hydrogen, helium, methane neon or ammonia although the preferred gas is helium. The spacing between the anode and cathode is arranged to be not more than four times, and preferably twice, the mean free path of the electrons. The various frequencies produced in the waveguide 35 are functions of the internal diameter of the waveguide and the distance between the cathode and any of the filters is more than five times the internal diameter of the waveguide. In an apparatus said to be used for carrying out experiments in the production of high-frequency electromagnetic waves the electrodes are in the form of spaced discs housed in a vessel made of iron or aluminium the inner walls of which are coated with a thin layer of silver or copper. Gases such as water vapour or hydrogen fluoride are unsuitable because of their corrosive properties. The Specification includes an extensive theoretical treatise.
Patent GB-855036-A (GB)
Title: Improvements in and relating to hoppers, bins and like containers mounted on skips, trucks and the like
Inventor: JOUBERT ROBERT MONTAQUE
IPC: B61D7/02
Filed: 1958-12-09
Abstract: 855,036. Operating the doors of skips in skip-hoists. JOUBERT, R. M. Dec. 9, 1958, No. 39619/58. Class 78 (4). [Also in Groups XXV and XXXII] The drop bottom 9 of a container such as a skip 6 in a skip hoist is opened or closed, as the skip is tilted relatively to a supporting bridle 18, by engagement of rollers 16 on the skip with cam tracks 20 on the bridle. In the construction shown the skip 6 is tipped by rollers 21 on it which engage fixed guides, and the drop bottom 9 is locked in its closed position by a lever 22 which is turned about the axis of the roller 21 to engage or disengage a catch 26 when a roller 24 engages the same guides as the roller 21. The body of the rail vehicle shown in Fig. 15 is tipped about a pivot 32 by a roller 36 which engages a fixed guide (not shown). During this movement the drop bottom 9a of the body is opened or closed by movement of a roller 16 on it over a cam track 20a on the chassis.
Patent GB-1209728-A (GB)
Title: Solenoid control circuit
IPC: D03D51/28
Filed: 1969-08-11
Abstract: 1,209,728. Switching systems for consuming devices. SINGER CO. 11 Aug., 1969 [30 Aug., 1968], No. 40053/69. Heading H2H. [Also in Division D1] The energization of a solenoid is controlled by a series-connected thyristor, the supply of gating signals to which is in turn controlled by a second thyristor. In the embodiment described, the solenoid 17 is associated with a loom. Operation of a main handle 10 closes a switch 19 so that the solenoid is connected in series with a thyristor 23 across an A.C. supply S. A capacitor 28 is charged through a diode 27, and gating signals are supplied through resistors 32 and 35, switching the thyristor 23 on, and energizing the solenoid, which, by moving its armature 16, disables a stop-device 11-15. Incorrect operation of the loom results in closure of a switch 39 so that, after a delay due to the presence of a capacitor 37, a second thyristor 29 is gated on. The gating signals for thyristor 23 are now short-circuited, the thyristor blocks, and the resultant de-energization of the solenoid causes the mechanism 11-15 to stop the loom. In particular, the switch 39 may be responsive to a broken warp thread, normal fluctuations during running not causing shut-down of the loom because of the delay caused by the capacitor 37. Failure of the supply, or of the solenoid itself, also causes the stop mechanism to operate.
Patent GB-1018104-A (GB)
Title: Improvements in or relating to tetracycline antibiotic compositions
IPC: A23K20/195
Filed: 1963-10-11
Abstract: Pharmaceutical and veterinary compositions comprise a tetracycline antibiotic and a succinic acid derivative of the general formula: <FORM:1018104/A5-A6/1> where X is an oxygen or sulphur atom or an imino group or an alkali or alkaline earth metal salt or a bis-anhydride thereof. They may be in conventional pharmaceutical forms (e.g. granules, capsules, lozenges, troches, candies, elixirs, drops, injectable solutions and suspensions) and veterinary forms (e.g. mixtures with animal and poultry feeds), such forms also comprising conventional diluents, carriers, nutrients, and trace elements and vitamins and other medicaments (e.g. penicillin, bacitracin, sulphaquinoxaline, phenylassonic acid, hydroxyzine and oleandomycin).  The invention further comprises the treatment of animals by administering thereto the active compounds of the invention, not necessarily simultaneously.
Patent GB-1066183-A (GB)
Title: Preparation of metro-steroids
IPC: C12P33/00
Filed: 1963-10-11
Abstract: 17b  - Hydroxy - 10a  - methyl - 9b  - steroids are prepared by treatment of a 10a -, 9b -pregnane having at the 20-position a keto or hydroxy group with a micro-organism of the species Sporormia. Micro-organisms specified are Sporormia pollaccii (Elisei), Sporormia fasciculata, Sporormoa leporina and Sporormia montana.
Patent GB-1185250-A (GB)
Title: Improvements relating to High-pressure Gas- and/or Vapour Discharge lamps
IPC: H01J61/073
Filed: 1967-09-04
Abstract: 1,185,250. Soldering. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 4 Sept., 1967 [7 Sept., 1966], No. 40345/67. Addition to 1,166,401. Heading B3R. [Also in Division H1] In the rod-shaped electrode as described in Patent 1,166,401 and which comprises a thoriated tungsten part 1, i.e. 0À5 to 5% by weight thorium, electrically connected in series and arranged end-to-end to a pure tungsten part 3 solely by means of an intermediate layer 2 of molybdenum or molybdenum alloy, at least one of the rod-shaped electrode parts 1, 3 has, abutting the intermediate layer, a contoured end surface which does not lie in a plane perpendicular to the longitudinal axis of the electrode, and the intermediate layer is of non-uniform thickness with the thickest part at the outside of the layer. One or both electrode parts may, as shown, be rounded off, or Fig. 4 (not shown), the end surfaces may be wedge-shaped. With this construction the intermediate layer forms a compact soldered joint free of occluded gas. The soldered joint is made placing a molybdenum disc between the end surfaces of electrode parts 1 and 3 and heating in a non-oxidizing atmosphere, e.g. argon or a nitrogen hydrogen mixture, to melt the molybdenum and applying a slight compression so that the maximum thickness of the intermediate layer is, preferably, 0À1 mm.
Patent GB-1075265-A (GB)
Title: Improvements in or relating to shaft lining shuttering
IPC: E21D5/12
Filed: 1964-10-06
Abstract: 1,075,265. Shuttering for lining mime shafts. HANIEL & LUEG G.m.b.H. Oct. 6, 1964 [Oct. 9, 1963], No. 40633/64. Heading E1S. A shaft is lined with concrete by means of a sliding shuttering I supported alternately by a clamping frame 2 and a cable 5. The frame 2 is clamped against the already cast lining and by means of hydraulic jacks 3 supports the shuttering and raises it to a new position. The frame 2 is released and raised to a new position by the jacks 3 while the whole apparatus is supported by the cable 5.
Patent GB-1018406-A (GB)
Title: Improvements in routing machines
Inventor: REYNOLDS SIDNEY JAMES
IPC: B23Q35/10
Filed: 1963-10-15
Abstract: 1,018,406. Copy-milling. VICKERS ARMSTRONGS (AIRCRAFT) Ltd. Oct. 26, 1964 [Oct. 15, 1963], No. 40676/63. Headings B3B and B3K. A routing machine comprises a milling cutter 23 in a swinging cradle 19 and guide members 25, 26 on the cutter spindle to co-operate with two vertically spaced templates 36, 37 defining the angularity of a conical surface to be reproduced. A cutter head 16 is movable transversely of a beam 15 on columns 13, 14 traversable on guides 11, 12. The head is freely rotatable about a vertical axis X, Fig. 6 (not shown), and supports the cradle 19 by linkage pivoted to brackets 17, 18. An electric motor 24, Fig. 4 (not shown), drives the cutter 23 directly. The cradle linkage comprises bell-cranks 27, 28, connected by a floating pivot 29 and pivoted respectively to the cradle 19 and the bracket 17 by pivots 32, 33, and links 30, 34, the whole linkage being duplicated on the other side of the cutter mounting as shown in Fig. 6. The axis of the cutter spindle 22 is adjustably off-set from the axis X and the linkage permits the cutter and motor to swing about a horizontal axis C-D passing between the followers 25, 26. The machine can cut completely around a concave or convex surface. The motor 24 may be balanced by a spring and pulley system. The table or cutter may be adjustable vertically.
Patent GB-955121-A (GB)
Title: Improvements in or relating to forging presses
IPC: B21J9/18
Filed: 1961-11-15
Abstract: 955,121. Forging presses. B. & S. MASSEY & SONS Ltd., J. FOSTER, and R. GRACE. Nov. 12, 1962 [Nov. 15, 1961], No. 40792/61. Heading B3H. A crank of eccentrically-operated forging press has its crank of eccentric shaft bearings 11 pre-loaded and its ram 16 balanced both statically and dynamically with the dynamic balancing being effective just prior to the application of pressure to the workpiece. The eccentric shaft 10 runs in phosphor bronze bearings 11 and is biased upwardly by an air cylinder 26 containing pistons 27 in tandem on a common rod 25 connected by a barrelled pin 24 to two housings 20 for ball races 18. On the other end of the shaft 10, which carries a brake 28, Fig. 3 (not shown), a single piston and a single connecting rod and ball race are used. Instead of the air cylinders, coil springs or packs of spring washers may be used. The ram 16 is balanced by a piston 38 in an air cylinder 37 having a ring of ports 40 from which the air can escape during descent of the ram. Just prior to engagement with the workpiece, the ports 40 are closed by the piston thereby trapping air in the cylinder to provide dynamic balance and take up any slackness in the big and small end bearings 14, 15. A valve 42 provides " inching " movement for the ram. The air escaping from ports 40 or valve 42 passes into an air chamber 41 in the press frame.
Patent GB-1070003-A (GB)
Title: Improvements in or relating to knife carrying mechanisms for cutting machines
Inventor: SLATER DENNIS
IPC: B26D1/04
Filed: 1962-10-30
Abstract: 1,070,003. Knife carrying mechanisms. AVON RUBBER CO. Ltd. Oct. 29, 1963 [Oct. 30, 1962], No. 40998/62. Headings B4B and B5A. A knife carrying mechanism to form part of a cutting machine comprises a base-plate 1 on which is mounted a movable carriage 10 carrying a motorized circular cutter blade, Fig. 2 (not shown), on an adjustable plate 14. The carriage 10 is mounted on rails 18 to be moved between a cutting position (as shown) and a retracted position by a rack and pinion mechanism 6 and 7, operated by a pneumatic motor 5, 6a having means for cushioning piston rod at the end positions. A pin 9 mounted on the pinion 7 engages a slot 10a in the carriage 10 to move it between the end positions and coil springs 17 located between stops on the rails 18 and lugs on the carriage 10 assist in the withdrawal of the carriage 10 from the cutting position. It is suggested that the mechanism be used for cutting moving material by mounting it above a conveyer belt and moving it forward at the same speed while cutting the material transversely. It is also suggested that an extruded band of plastics material or rubber may be cut into measured lengths with skive cuts, the sequence of operations being controlled by a suitable length measuring device.
Patent GB-1410080-A (GB)
Title: Oxime derivatives of 2,2-dimethyl-3-formyl cyclopropane carboxylic acid and their use as insecticides
IPC: C07D307/46
Filed: 1973-08-31
Abstract: 1410080 Cyclopropane oxime derivatives NATIONAL RESEARCH DEVELOPMENT CORP 18 Dec 1973 [21 Dec 1972 31 Aug 1973] 59185/72 and 41048/73 Heading C2C The invention comprises cyclopropane carboxylic acid derivatives of the general Formula (II) in which R<SP>1</SP> is hydrogen, or an alkyl or alkenyl group and R<SP>2</SP> is hydrogen or the group OR in which R is hydrogen, an alkyl group, a group of Formula III or a group of formula in which Y is an aryl or furyl group which is unsubstituted or substituted in the ring by one or more alkyl, alkenyl, alkoxy or halogen substituents; R<SP>7</SP> and R<SP>8</SP> are hydrogen or an alkyl or alkenyl group; D is H or -CN, Z is -CH 2 - or -O-, Z<SP>1</SP> and Z<SP>2</SP> are chlorine or methyl and n is 0, 1 or 2. The alkyl esters of the present invention (R<SP>2</SP> in Formula II is -O-alkyl) may be prepared by reacting an ester of Formula (XI) in which R is an alkyl group with an alkoxyamine or with hydroxylamine and, if desired, treating the product with an alkyl or alkenyl halide. In addition any of the compounds of Formula II above in which R<SP>2</SP> is other than halogen may be prepared by reacting a compound of Formula IX with an alcohol or derivative thereof of formula RQ, in which -COP and -Q are functional groups that will react to form an ester linkage. -COP may be, for example -COOH or -COCl when -Q may be OH and -COP may be a carboxylic acid salt when Q is halogen. The compounds in which R<SP>2</SP> represents the group OR in which R is a group of Formula (III) or Formula (VI) above are used as active agents in insecticidal compositions. The compositions may contain inert carriers, diluents and surface active agents and may be formulated as dusts, granular solids, wettable powders, emulsions, sprays and aerosols.
Patent GB-1016679-A (GB)
Title: Improvements in or relating to hydraulic control devices for bending presses
IPC: B30B15/24
Filed: 1962-10-30
Abstract: 1,016,679. Angular bending. G. SALVAGNINI. Oct. 30, 1962 [Nov. 3, 1961], No. 41089/62. Heading B3E. A press brake is operated by two hydraulic jacks which are controlled, to keep the bending member level, by means, carried by a transverse member guided during descent of the bending member to remain level, co-operating with elements rigidly secured to the bending member. A bending plate 2 is lowered by two jacks 3 supplied with pressure liquid from two pumps 7, the flow to the jacks 3 being controlled by valves 11 carried by a transverse member 12 guided to remain parallel to the press base 1 during descent of the plate 2. The member 12 is supported by rods 17 rigid with the plate 2, heads 18 of the rods 17 controlling flow through the valves 11. The transverse member 12 may comprise a cylindrical body 19, Fig. 2 (not shown), carrying the valves 13 on bearings 29 and adapted to roll on a fixed upright 20. Tapes 21, 24 fixed at one end to the upright 20 and at the other end to the roller 19 ensure that the roller 19 remains level during its descent. One pump 7 may supply both jacks 3.
Patent GB-981982-A (GB)
Title: Centre core for reels of self-adhesive tape
Inventor: NELMS THOMAS GEORGE
IPC: A61F15/00
Filed: 1963-10-18
Abstract: 981,982. Reels; forming tubes by winding. ROLEX PAPER CO. Ltd. Oct. 18, 1963, No. 41328/63. Headings B8G and B8M. A centre core for a reel of self-adhesive tape consists of a ring or tube composed of paper, board or other fibrous cellulosic material and a covering of transparent cellulose film over the whole of the outer cylindrical surface of the ring or tube. A tube, to be cut into the individual cores, is wound on a convolute or spiral winder, and may comprise four plies of wood pulp board between an inner and outer ply of white machine-glazed paper. The cellulose film, also wound on the tube by the winder, is coated with a polyvinyl acetate emulsion adhesive to secure it to the core.
Patent GB-966592-A (GB)
Title: Improvements in or relating to mine shoring
Inventor: NEALE LESLIE ARTHUR
IPC: E21D11/18
Filed: 1961-11-18
Abstract: 966,592. Yielding mine roof supports. HAYDON-NILOS Ltd. Nov. 9, 1962 [Nov. 18, 1961], No. 41344/61. Heading E1E. In a yielding mine arch support or pit prop consisting of a mine arch girder of H-shape cross-section sliding relative to two like base girders 4 interconnected by a bolted clamp 12, 13, 14 the girder 8 is provided with a pipe 18 bent to U-shape configuration which yieldably enters a gap 16 defined by cross bars 15 welded to the members 4. The cross bars may carry rollers and the clamp incorporate wedging means, see Figs. 6 and 8 (not shown), respectively. Again, the girders 4 may be of channel section having short vertical lengths of channel section welded thereto into holes in the webs of which are secured the bars 15, see Figs. 10-12 (not shown).
Patent GB-1165641-A (GB)
Title: Stripping Mechanism.
IPC: B22D29/06
Filed: 1967-09-11
Abstract: 1,165,641. Mould stripping mechanism. KERMA CORP. 11 Sept., 1967 [12 Sept., 1966], No. 41453/67. Heading B3F. A stripping mechanism for stripping an ingot E from a mould D and which is suspended from an overhead crane 22 comprises a gripper B that grips the mould D and raises it relative to a fixed ram C until the ram pushes the ingot from the mould. The mechanism is constructed around a frame A that is directly connected to the crane 22 and to which the fixed ram C is attached. Suspended from the frame A is a pair of hydraulic piston and cylinders 60, 62 that raise and lower a pair of gripper tongs 30, 32 that can be opened and closed by an hydraulic cylinder. The frame A includes a deck 14 through which the cylinders 60, 62 pass and on which is mounted an electric motor and an hydraulic pump. The lower ends of the piston rods 72, 74 of the cylinders 60, 62 are spaced apart by a guide member 84 that shrouds the piston rod 72 only and moves along the frame A by means of guides as the gripper B is moved relative to the frame A. The other piston rod 74 is shrouded by a separate tubular member 90.
Patent GB-1175960-A (GB)
Title: Electrodeposition of Copper
IPC: H05K3/42
Filed: 1968-08-30
Abstract: 1,175,960. Electro-deposition of copper; test cell to determine throw power. ALLIED CHEMICAL CORP. Aug.30, 1968 [Sept. 18, 1967], No.41624/68. Heading C7B. Copper is electrolytically deposited on to a substrate from an aqueous bath which comprises 5 to 35 g/1 of copper ion and 100 to 700 g/1 of fluoboric acid. During plating the bath may be mechanically agitated. The bath operating temperature may be from -50C. to 77 C. The current density may be 5 to 350 amps/sq. ft. The anodes may be of rolled, annealed or electrolytic copper and may be bagged. The bath may contain H 3  B0 3 . Brightening agents may be used (but none is specified). A printed circuit board can be prepared by electro-depositing Cu on a Cu coated non- conductive board and then etching a pattern. Example 52 is of plating a stainless steel panel. Fig. 1 shows in plan a test cell for determining the throw power of a copper plating bath. The cell is divided by partitions 6 each having five holes drilled therethrough and has cathode panels 2, 4 and an anode 8. The throw is calculated from the weights of copper deposited on the two panels 2,4.
Patent GB-417387-A (GB)
Abstract: 417,387. Weaving. NAKANISHI, K., and NAKANISHI, K., 21, Katadoicho, Hakata, Fukuoka, Japan. March 31, 1933, No. 9800. Convention date, April 12, 1932. [Class 142 (i).] In a photo-electric or thermo-electric selecting system, for weaving without the use of pattern cards, or for producing pattern cards directly from a picture, the contacts 6-7<111> of marginal relays A-D of progressive sensitivity are so connected that, through the co-operation of the more sensitive relays, only the selecting electromagnet A<1>-E<1> operates which corresponds to the least sensitive relay actuated. The relays are in the output of a thermionic amplifier 3 connected to a photo-electric cell or thermo-pile 2, which scans an object 13. The picture 13 is drawn in different shades, each corresponding to a colour to be woven on a brocade, and the magnets A<1>-E<1> select the appropriate thread 11, or punch a card. Ultra-violet or infra-red radiation may be used.