baber/WOPTO huggingface dataset:
Patent GB-1207499-A (GB)
Title: Cutting torch assembly
IPC: F23D14/42
Filed: 1967-12-11
Abstract: 1,207,499. Blowpipe burners. HARRIS CALORIFIC CO. 11 Dec., 1967, No. 56232/67. Heading F4T. A cutting torch includes a head portion B and tip assembly C which comprises a shell 30, a coaxial tip insert 32 and a distribution member 34 received in an opening in the body 10 and provided with a spring ring 37 in a circumferential groove to retain it in the opening, the member 34 having an opening 64 to receive the end of insert 32 and a silicone rubber sealing ring 63 forming a seal between the parts.
Patent GB-1410377-A (GB)
Title: Drawers
IPC: A47B88/00
Filed: 1972-12-08
Abstract: 1410377 Drawers L B (PLASTICS) Ltd 8 Dec 1972 56752/72 Heading A4B The sides 6, 7 and back 8 of a drawer are formed by identical hollow extruded plastics panels each formed with a groove 10 to receive an edge of the drawer bottom 5, the panels being interconnected by corner pieces each comprising projections 14 which fit into the hollow ends of the panels, the projections 14 extending from a corner post 13 which is exposed in the connected condition and which has a top and bottom which is of rectangular shape, i.e. a is slightly greater than b, so that in the connected condition one panel overlaps the end of an adjacent panel on the inside of the corner. The panels include a runner groove 12. The projections 14 may be permanently secured in the panels or, as shown, may have resilient tongues 15 which snap-fit into holes 17 in the panels. The front wall 9 is fitted with a handle, is secured to the side walls by connectors 19 or alternatively, when the front wall is identical to the other walls, by further corner connectors 13, 14
Patent GB-1375110-A (GB)
IPC: H01H9/06
Filed: 1972-12-08
Abstract: 1375110 Retractive switches; switches retained set CUTLER-HAMMER INTERNATIONAL FINANCE Inc 8 Dec 1972 [8 Dec 1971] 56897/72 Heading H1N A selective plural-position trigger switch for speed control of electric motors for portable tools includes an insulating base 2 accommodating the fixed conacts 48, 50, 52 and a slidabletrigger 8 which houses a spring-biased movable contact 54 and which has arrangements at the finger-engaging end 8a for mounting a speed selection knob 24 with its integral shaft 27, position detent grooves 36 spaced 90 degrees apart and eccentric drive pin 38, together with a recess for the trigger return spring 12. A central cavity 30, Fig. 5, of the trigger member houses a detent spring 32 for engagement with diametrically opposite pairs of the grooves 36 and a stop block 42 which is coupled to the knob by engagement of the pin 38 within an elongated hole 40. The stop block is guided by a runner 58 within a slot 60 for slidable movement in conjunction with the trigger and it can also be moved up and down within the cavity by turning the knob 24 through 90 degrees from the 12 o'clock to the 9 or 3 o'clock positions so that, for example, in the selected "L" position of Fig. 3, a shoulder 44 abuts edge 46 of the metal frame 10 when the trigger is depressed to a first position which causes contacts 48, 50 to be bridged. In the selected "H" position (Fig. 4, not shown), the shoulder 44 can slide beneath the frame edge when the trigger is depressed to a second position, whereupon switch contacts 48, 52 are bridged, and further movement of the trigger is limited by stops 14 abutting against the ends of apertures 16 in the frame 10. Following depression of the trigger the switch can be held in either of its selected "ON" positions by depression of a spring-loaded lock pin 20 (Fig. 1, not shown), which has a flanged end for engagement with one of the recessed catches HS, LS formed on the side of the stop block 42 and the trigger can be released for return to the "OFF" position by spring 12 by a slight further depression in order to free the flanged end. The switch is primarily intended to have a two-position selection knob for the control of a two-speed motor (diagram, Fig. 6, not shown), but the knob can also have three positions arranged in conjunction with a threeposition stop block having two abutment shoulders which would be effective in the 12 o'clock, 9 or 3 o'clock, and 6 o'clock positions of the eccentric pin. Figs. 7 and 8, not shown, refer to an alternative embodiment of trigger which has an upstanding finger-engaging portion with the return spring mounted above the frame. The frame member may be made of plastics material and may be a snap-fit on the body.
Patent GB-1407489-A (GB)
Title: Heated induction system for an automotive internal combustion engine
IPC: F02M31/06
Filed: 1972-12-11
Abstract: 1407489 Heating I C engine charge NISSAN MOTOR CO Ltd 11 Dec 1972 [24 Dec 1971] 57087/72 Heading F1B At least part of the air or mixture induction passage, e.g. the intake manifold 20, for an I.C. engine is separated from a combustion chamber 30 by a heat transfer partition 31, e.g. a copper, brass, aluminium or stainless steel plate from 0.5 to 3mm thick. The chamber 30 is supplied with a fuel/air mixture by a carburetter 23 and has a spark-plug 36. The carburetter throttle valve 27 is opened and the plug 36 energized below a predetermined engine temperature under the control of a thermostatic switch 44, e.g. on the engine cooling water jacket 45. The chamber 30 has a fine wire mesh flame holder 32 in its inlet and its outlet may be connected through a finned pipe 33, containing a wire mesh flame arrester 34, to the manifold 20. The valve 27 is operated by a diaphragm actuator 46 which is subjected to manifold suction to open the valve under the control of an electromagnetic valve 53. The switch 44 operates to close the normally-open or normally-closed relay switch 42 below the predetermined temperature, e.g. 60C, with the ignition switch 41 closed so that the valve 53 is energized and connects the actuator 46 to the manifold 20 in place of an atmospheric pressure port 55. An extension 58 of the valve actuator rod 56 acts on the throttle valve 16 of the carburetter 10 supplying the manifold 20 to open the valve from the idling position. The member 31 may have fins on one or both sides. The engine may be supplied with fuel by a fuel injection system.
Patent GB-1216667-A (GB)
Title: The antibiotic diumycin
Filed: 1967-12-20
Abstract: 1,216,667. Antibiotic diumycin. E. R. SQUIBB & SONS Inc. 20 Dec., 1967 [27 Dec., 1966; 15 Nov., 1967], No. 57923/67. Heading C2A. An antibiotic diumycin and its components A and B, which are effective against gram positive bacteria, yeasts and fungi are coproduced with antibiotic umbrinomycin (Specification 1,216,668) by the cultivation of Streptomyces umbrinus ATCC 15972, or a mutant thereof, in an aqueous nutrient medium under aerobic conditions. The mycelium is separated from the broth at pH 3À0, is extracted with methanol and the methanol is removed at pH 6 to 8 to leave an aqueous suspension of the antibiotics. The aqueous suspension is extracted with butanol at pH 8À0 to remove umbrinomycin and the residual aqueous layer is extracted with water-saturated butanol at pH 3À0 and then back-extracted with water at pH 7À0. The aqueous extracts are concentrated to dryness, the residue dissolved in CH 3 OH, the insolubles removed and acetone added to precipitate the diumycin. It is purified by chromatography and countercurrent distribution. Components A and B are obtained by the countercurrent distribution of diumycin complex using the solvent system n-propanol, n-butanol, 0À5N. NH 4 OH. The diumycins have growth-promoting properties and may be added to animal feeds. They have general disinfecting properties.
Patent GB-1298206-A (GB)
Title: Offset printing
Inventor: CRISSY ROBERT J
IPC: B41F13/02
Filed: 1969-11-27
Abstract: 1298206 Printing apparatus NEW JERSEY MACHINE CORP 27 Nov 1969 [2 Dec 1968] 58015/69 Heading B6C An offset printing machine comprises a plate cylinder with inking means, a blanket cylinder and an impression surface which may be either a cylinder or a reciprocable planar surface and which coacts intermittently with the blanket cylinder for transfer of an ink image to an intermittently advanced web overlying the impression surface. Preferably the machine is equipped with a plate cylinder which is three times the size of the blanket cylinder, and carries either three separately inked plates or a single lithographic plate bearing three images. In either case, the images are transferred in superimposition to the blanket cylinder, and from it to the web. The blanket cylinder may be mounted on a shaft carried by a bell crank, and be tripped into and out of contact with the plate cylinder and impression cylinder by compressed air, actuated by a solenoid. The machine may be used to print labels, which are subsequently fed in web form to a cutting machine, and the advance of the web may be varied to control the spacing of successive multi-colour impressions on the web.
Patent GB-1139849-A (GB)
Title: Oxidation of ammonia
IPC: C01B21/26
Filed: 1967-12-21
Abstract: 1,139,849. Nitric oxide. INVENTA A.G., FUR FORSCHUNG UND PATENTVERWERTUNG, ZURICH. 21 Dec., 1967 [29 Dec., 1966], No. 58125/67. Heading C1A. A mixture of ammonia and oxygen is made with a volume ratio of 1 part of NH 3  to 1À10 to 1À27 (preferably 1À20 to 1À26) parts of O 2 , and the mixture diluted with steam. The oxygen content of the mixture is less than usually employed in other processes for the catalytic oxidation of ammonia. The resulting gas mixture is reacted over a catalyst of platinum or platinum-rhodium alloy at 800‹ C., to 950‹ C. The duration of contact of the gases with the catalyst is important, and therefore the flow rate must be between 0À06 and 0À3 m/sec. (calculated at 0‹ C. at 760 mm. Hg.), the optimum flow rate being at 0À12 m/sec. The working up of the reacted gases is effected by washing with the steam condensed out, and water if necessary, to remove higher nitrogen oxides as nitric acid. The yields of nitric oxide obtained are 80% to 92% based upon the amount of ammonia used. Nitrogen and nitrous oxide are produced in small quantities as impurities, and nitric acid is obtained as a by-product.
Patent GB-1341468-A (GB)
Title: Multi frequency voice receiver
IPC: H03H11/12
Filed: 1971-12-16
Abstract: 1341468 Detecting signalling currents INTERNATIONAL STANDARD ELECTRIC CORP 16 Dec 1971 [23 Dec 1970 (2)] 58431/71 Headings H3T H3U and H4R  A multitone receiver for use in a telecommunication system has its input from a common control 10 brought to an input amplifier which includes a filter 17 for rejecting all signals below 680 Hz and a following operational amplifier which has a set threshold level of - 22 dBV, Fig. 2 (not shown). Filter 17 consists of cascaded T-filters designed to give a sharp cut-off at 680 Hz, Fig. 5 (not shown). The following filters 20, 22 separate out the high and low tones that make up a valid input signal, the low pass filter having an upper pass frequency of 965 Hz and the high pass filter 22 having a low pass frequency of 1180 Hz. Both filters are similarly constructed of four transistorized cascaded T-stages followed by two cascaded T-stages each with its own operational amplifier, Figs. 6 and 7 (not shown). The separate high and low group signals are passed through a limiter circuit 30 where they are converted into a square wave form if their amplitude passes an acceptance threshold. The circuit, Fig. 9 (not shown). includes a pair of high gain operational amplifiers which have reference voltages applied to their inputs from resistive potential divider chains to give an on/off characteristic. Crosscoupled NAND gates are used to provide the square wave output which is supplied to the groups of band pass filters 40-43, 44-47. Each of the band-pass filters is turned to pass a particular tone frequency and comprises two filter stages in series, each stage comprising an operational amplifier shunted by a twin-T feedback path. The pass frequencies of the stages are not quite the same so that a flat response around the central signal frequency is obtained, Fig. 8 (not shown). The signals from the band pass filters are checked in detector 60 to ensure that they are correctly grouped, i.e. one high and one low, have the correct amplitude and duration. If they are valid D.C. spikes are passed on the respective ones of leads 70-77 into memories 80, 82 which are enabled by a validity pulse on line 84. The signals are stored and passed to decoder 100 which converts the signals into decimal or binary decimal form to supply further equipment. The filter 17 consists of 8 cascaded stages with the resistors in the first five stages descending in magnitude and the resistor in the sixth stage being greater than the first resistor and those in the subsequent stages again are smaller. The capacitors and resistors in filters 20, 22 increase and decrease in value respectively over the first three stages of the filters.
Patent GB-1364106-A (GB)
Title: Phenoxyalkylamines process for their preparation and applications thereof
IPC: C07C/
Filed: 1971-12-17
Abstract: 1364106 Phenoxyalkylamines LABORATOIRES LAROCHE NAVARRON 17 Dec 1971 [28 Dec 1970] 58733/71 Heading C2C Novel compounds of formula in which n is zero or 1, R is hydrogen or a hydroxy group, R 2  is hydrogen, a hydroxy or alkyl group, R 2  being other than hydroxy when n is zero, R 3  and R 4 , which are not both hydrogen, are selected independently from one another from hydrogen, the halogens, the alkyl groups and the alkoxy groups, A is the group -CH 2 OH, -CO-R 1  or -CH-R 1 , #OH R 1  being an alkyl, cycloalkyl or aryl group are prepared by reacting a compound of formula with a compound of Formula 111  in which Z is a radical selected from the radicals X being a halogen atom and R<SP>1</SP> 2  being a hydrogen atom or an alkyl radical, and  R<SP>11</SP> 2  being an alkyl radical, with subsequent hydrogenation of the resulting condensation product when it includes a double bond in the chain, and any tetra group in A in the resulting compound is optionally reduced. Intermediates of Formula III above are prepared by reacting a phenol of formula with the compound YCH.Z wherein Y is halogen. Pharmaceutical compositions in conventional forms particularly for oral administration and having coronary vasodilatator, cardiotonic, and spasmolytic activity, comprise an above novel compound and a carrier therefor.
Patent GB-1421919-A (GB)
Title: Torch nozzles
IPC: F23D14/52
Filed: 1972-12-21
Abstract: 1421919 Scarfing nozzles BOC INTERNATIONAL Ltd 11 March 1974 [21 Dec 1972] 59057/72 Heading F4T  A nozzle for a scarfing torch comprises a body 2 adapted to be secured in a conventional three shoulder seat to which cutting oxygen, pre-heat oxygen, and fuel gas, are supplied, the body having a central passage 18 for cutting oxygen, an intermediate sleeve 4 defining a passage 38 for the flow of preheat oxygen, and an outer member 6 forming with sleeve 4 a passage 60 for fuel gas, a gas mixing chamber 28, and a passage or series of passages 62 for the preheat mixture, being provided. Body 2 has three portions 8, 10, 12 adapted to engage seats in a member not shown; with fuel gas, and preheat oxygen being supplied to galleries 14 and 16 respectively, the galleries being connected to chambers 28 and 32 by passages 26 and 30 respectively. Sleeve 4 is coaxially force fitted on a shoulder 34 of body 2 and is located by ribs 36 on the body. Outer member 6 fits on a shoulder 40 of body 2 and makes a gas-tight fit at a joint face 42. The nozzle is fixed in the seat by a nut 44, and a toughened wear ring 66 is brazed to member 6 at the discharge end of the nozzle. A tip mixing chamber 58 arranged close to the outlet face 64 of the nozzle reduces the danger of back-firing.
Patent GB-1408456-A (GB)
Title: Cutting torch with pre-heating nozzles
IPC: F23D14/54
Filed: 1972-12-21
Abstract: 1408456 Cutting torches MESSER GRIESHEIM GmbH 21 Dec 1972 [23 Dec 1971] 59089/72 Heading F4T A cutting torch for cutting through round and polygonal material comprises a torch head in which there are located a cutting nozzle 14, at least one heating nozzle 24 adjacent nozzle 14, and pre-heating nozzles 16 disposed in advance of the nozzles 14 and 24 in the cutting direction, the outlet apertures of the nozzles 14 and 24 being disposed in a planar first surface 22 and the outlet apertures of the nozzles 16 being disposed in a second surface 30 inclined to the first surface 22. Surface 30 may be concave or planar and at, for example, 135 degrees to surface 22. The heating nozzle(s) 24 receive a fuel gas/oxygen mixture and may comprise one or two coaxial annular channels or one or two rings of channels around the oxygen-receiving cutting nozzle 14. In a further form, the torch head is provided with two rows of fuel/oxygen mixture receiving nozzles of which those adjacent the nozzle 14, located between the rows, form the heating nozzles and open into surface 22 and the remainder form the preheating nozzles and open into the surface 30. The outlets in said rows may be orientated so that the flames from one row of nozzles converge into the flames from the other row. A valve may be provided to cut off gas supply to the preheating nozzles 16 after preheating of the starting point of a cut.
Patent GB-1408016-A (GB)
Title: Pulse-operated radar receivers
IPC: G01S13/526
Filed: 1972-12-21
Abstract: 1408016 Pulse radar SIEMENS AG 21 Dec 1972 [23 Dec 1971] 59277/72 Heading H4D A pulse radar receiver includes in its video stage a moving-echo filter followed by a variable cut-off digital low-pass filter whose cut-off frequency is progressively reduced during the target observation time. The Specification states that in a radar of this type the optimum frequency of the low-pass filter is inversely proportional to the observation time. Therefore as the observation time increases without detection of the target the filter cut-off is reduced, thus nominally increasing the signal-to-noise ratio, If the filter is followed by a threshold detector the threshold can be simultaneously lowered to provide a constant false alarm rate, but ensuring a more rapid positive targetno target decision if sequential detection is used. In a radar using a phased array antenna 1 coherently detected pulses are amplitude coded and subjected to fixed target cancellation in moving echo filter 11. The unipolar pulses due to moving targets are fed to a digital low-pass filter TP comprising two identical cascaded stages F1, F2. The filter parameters are determined by the gains of A1, A2, D1, D2 which are controlled by a store or computer 25. This also controls the switching of the antenna array 1 and sets the maximum observation times in any particular direction; these may be preprogrammed or derived from a tracking sequence. The filter output is passed to a threshold 23 which has upper and lower limits OS, US. These limits are lowered and raised respectively during the target observation time. Crossing of either limit by the filter output terminates the observation and produces a target/no target signal for indicator 24. On the decision being made store or computer 25 progresses to the next antenna direction. The variation of the cut-off frequency may be begun or ended by a portion of constant frequency or the variation may be progressive throughout.
Patent GB-1268368-A (GB)
Title: Matttress construction
Inventor: SHARP DAVID HAROLD
IPC: A47C27/18
Filed: 1968-12-13
Abstract: 1,268,368. Mattresses &c. D. H. SHARP. Dec. 9, 1969 [Dec. 13, 1968], No.59291/68. Heading A4M. An inflatable mattress or seat comprises opposed layers 20a, 22a and 20, 22, Fig.4, of compressible foam, an air impermeable, expansible conduit 28, 30 disposed between the layers, a flexible substantially non-expansible covering layer 26 encasing the layers and conduit, and inflation valves 32 in the cover 26 and communicating with the conduits 28, 30. Inextensible ties 34 inter-connect opposed faces of the cover 26. In another embodiment, Fig. 5, a seat comprises a frame 40, 42 supporting padding layers 44 in a cover 46 and housing conduits 48, 50, 52 with separate inflation valves 54, 56, 58 connected to a selector valve 60 in turn connected by a conduit 62 to a manually operable air pump 64.
Patent GB-1204950-A (GB)
Title: A method of casting pressing blanks for pistons containing cavities
Inventor: RABENAU FRIEDRICH-WILHELM
IPC: B22D11/00
Filed: 1968-12-16
Abstract: 1,204,950. Continuous casting. KARL SCHMIDT G.m.b.H. 16 Dec., 1968 [30 Jan., 1968], No. 59741/68. Heading B3F. Joined light alloy blanks (to be pressed or forged to make cavitied pistons) are cast as a continuous strand of round section, salt ring cores to produce the cavities having been inserted at intervals into the molten core from above by a tong-like device which holds the upper part of a ring until the ring is anchored in the solidifying melt. The salt core-ring is preheated and it is lowered by the device at the rate of the withdrawal of the casting which like the teeming rate is reduced for the installation of the core. The sodium or potassium chloride cores are subsequently dissolved out after forging or pressing has occurred. The continuous castings may receive a homogenizing heat treatment to remove stresses.
Patent GB-1404372-A (GB)
Title: Two-mass vibrating conveyor
IPC: B65G27/30
Filed: 1972-12-28
Abstract: 1404372 Vibratory screens BADISCHE MASC-HINENFABRIK GmbH 28 Dec 1972 [21 Jan 1972] 59890/72 Heading B2H [Also in Division B8] A screen 2 is mounted on an associated mass 3 by spring elements 9 orientated in the direction of the angle of throw used for conveyance. The associated mass 3 is supported by hollow rubber springs 7 on a frame 8. A vibration generator 1 is mounted on a frame 4 and is connected to the associated mass 3 by two vibration transmission rods 11, (only the front one shown). The rods 11 are secured to the frame 4 by bearing blocks 13 and to the associated mass 3 by bearing blocks 14 at a spacing from the front end 12 of the mass 3.