baber/WOPTO huggingface dataset:
Patent GB-340137-A (GB)
Title: Centrifugal machine for casting metals
IPC: B22D13/02
Filed: 1929-12-30
Abstract: 340,137. Casting machines. CENTRIFUGAL PIPE CORPORATION, 1, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Byers, J. A. ; Evanston, Illinois, and Smotzer, M. C. ; Coshocton, Ohio, both in U.S.A.) Dec. 30, 1929, No. 39744. Convention date, Dec. 31, 1928. [Class 83 (i).] Metal-pouring.-A centrifugal casting machine, comprising a horizontal mould 4 movable axially relative to a pouring trough 6 supported at 8, has collapsable supports 37, 38, 69 one or more of which support the projecting portion of the trough by engaging the trough itself or an extension 25 thereof. Molten metal in a ladle 27 is poured, by means of a hoist 31, through a funnel 26 of the trough 6 which is then rotated by a motor and gearing 34 to empty the charge into the mould 4 which is rotated by a motor 16. The mould on its carriage 3 is then moved to the left by a motor 18 and gearing 21, an abutment 63 striking the retaining catch 47, Fig. 5, of the supports 37, 38 successively and lowering said supports to horizontal position by inter-engaging abutments 53, 54 each adapted to yield slightly in one direction. Before the support 38 is lowered abutments 97, 76, Fig. 3, somewhat similar to the abutments 54, 53 engage and raise the support 69 into vertical position where it is retained by its catch 85. The carriage continuing its movement strikes and lowers supports 102, 103, Fig. 1b and then the motors 16, 18 are stopped and the carriage arrested in position B by the abutment 63 striking a buffer (not shown). Moulds.-Just prior to the rotation ceasing a projection 116, Fig. 11, on a hand lever 113 is moved into the path of core-fixing wedges 111. Castings, extracting.-The pipe or other casting is then attached by a clamp to a fixed cleat 12, Fig. 1b, and the carriage 3 is moved to the right thus extracting the pipe. As the carriage moves, the abutment 54 successively engages the abutments 53 of the supports 103, 102 which are raised and engage the pipe 108 as shown in Fig. 1b. The pipe is then rolled on to adjacent skids (not shown). As the carriage returns to its original position A, Fig. 1a, the supports 38, 37 are raised and an abutment 91 strikes the catch 85, Fig. 3, of the support 69 which is then lowered by engaging abutments 76, 97. The carriage is arrested by the abutment 91 striking a buffer 93, Fig. 1a. Specification 197,177, [Class 83 (i), Casting &c. metals], is referred to.
Patent GB-1440946-A (GB)
Title: Extraction of polylactams
IPC: C08J9/26
Filed: 1973-08-24
Abstract: 1440946 Polylactam extraction process BASF AG 24 Aug 1973 [30 Aug 1972] 40164/73 Heading C3R Monomer- and/or oligomer-containing polylactam granules are continuously extracted with a countercurrent of water at above 80‹ C. under the following conditions: (a) the polylactam granules pass downwardly in continual contact with upwardly flowing water in a substantially vertical extraction zone; (b) the temperature is higher at the upper than at the lower end of the zone; (c) the zone is divided into sub-zones by at least one intermediate heating zone so that the density of the water in the sub-zone immediately above the or each heating zone is at least 0.002 g./cc. less than that in the subzone immediately below and (d) the sole or top heating zone divides the entire extraction zone so that the sub-zone is 15 to 50% of the total length. Specified lactams are those having 4 to 12 C atoms, e.g. caprylo-, lauro- and especially capro-lactam. Reference is made to Specification 1,440,947 which relates to a modification of this invention wherein the flow of water is periodically accelerated and retarded.
Patent GB-1444171-A (GB)
Title: Sulphonium salt corrosion inhibitors for aqueous acidic metal cleaning solutions rev
IPC: C11D1/00
Filed: 1973-08-24
Abstract: 1444171 Corrosion-inhibited metal cleaning compositions DOW CHEMICAL CO 24 Aug 1973 40344/73 Heading C7E An aqueous acid metal-cleaning solution containing a non-oxidizing acid contains as a corrosioninhibitor which is effective in the presence of Fe<SP>3+</SP> a sulphonium compound of Formula wherein A is a compatible anion, R' is C 1-24  hydrocarbyl optionally with inert substituents, R is C 1-4  alkyl, C 2-4  substituted alkyl, allyl or  phenyl optionally inertly substituted or R and R'' together form a 5 or 6-membered ring containing the S atom as sole hetero atom and R is a benzylic group corresponding to a number of listed formulae upon which certain provisos are imposed. Long lists of compounds are given and may include electron-withdrawing substituents e.g. I, -COCH3, -CO-phenyl, -SO 3 H,-CCl 3 , -COOH, -SO 2 CH 3  and -NO 2 . The benzylic group contains a benzene or naphthalene ring, bonded via -CH 2 - to the S. The cleaning acid may be inorganic, or organic e.g. HF, HCl, H 2 SO 4 , H 3 PO 4 , HCOOH, CH 3 COOH, sulphonic, hydroxyacetic, citric, EDTA and salts thereof, and mixtures thereof. Steel or a Cu-Zn Sn alloy may be treated. The sulphonium salt concentration may be 10<SP>-6</SP> to 10<SP>-1</SP> moles/litre.
Patent GB-959533-A (GB)
Title: Process of boronizing metal or alloy surfaces
IPC: C23C8/42
Filed: 1962-10-25
Abstract: A metal or alloy surface, e.g. of Fe, Ni, Co, Mo, W, or Ta base alloy, is boronized by immersing it in a fused salt bath containing boron carbide within a silicon carbide lined vessel. Suitable solvents for the B4C in the bath may be molten NaOH or KOH, boric acid, or one or more alkali or alakline earth metal meta-, penta- and/or fluoro-borates. Preferably the bath is of fused sodium tetraborate at 1500-2150  DEG F. containing 5-20% by weight of dissociated B4C. A small amount of carburizing may take place.  After boronizing, the surface may be heat-treated to diffuse boron further into the surface, e.g. at 1900  DEG F. for 1 hour, followed by water quenching for a Ni base alloy. Prior to boronizing, the surface may be cleaned and/or heated.  A resist of electro-deposited copper may be applied to the surface for boronizing selected parts only.  The following alloys are specified:-(a) low alloy steel: .38-.43% Cu, .5-.7% Mn, .2-.4% Si, .04% max. P, .04% max. S, 1.4-1.8% Cr, .3-.4% Mo, .95-1.3% Al, balance Fe; (b) nickel base alloy: .08% max. C, 1% Mn, 9% Fe, .55% Si, .2% Cu, 14-16% Cr, 2.2-2.7% Ti, .4-1% Al, .7-1.2% Nb, balance Ni; (c) cobalt base alloy: .3-.45% C, 18-22% Ni, 18-22% Cr, 3.5-5% Mo, 3.5-8% W, 2.5-4% Nb, 4% Fe, balance Co at least 38%.
Patent GB-1058736-A (GB)
Title: Operating circuit for an a.c. energised radiation detector
IPC: H03K5/08
Filed: 1964-10-05
Abstract: 1,058,736. Flame sensing devices. DANFOSS A.S. Oct. 5, 1964 [Oct. 5, 1963], No.40562/64. Heading G1A. [Also in Divisions H1 and H3] An ultraviolet-sensitive Geiger-M³ller detector tube is supplied with an A.C. voltage of substantially square waveform and of an amplitude between the tube operating voltage and the self-ignition voltage. In the circuit shown a sinewave mains voltage applied to the primary winding 1 of a transformer 2 is formed to a square shape by a leakage path 3 separating the primary and secondary windings of the transformer and a capacitor 11 bridging part of the secondary winding 4, and is stabilized by a voltage dependent resistor 10. The detector tube 5 is connected in series with a resistor 6 and a Graetz rectifier control circuit 7 incorporating the coil 8 of a relay having contacts (not shown), adapted for example to interrupt the feed to an oil-fired installation when the flame is extinguished. An alternative circuit (Fig. 3, not shown, see Division H3) incorporates an auto-transformer, and the coil of the control relay is energized by a transistor amplifier.
Patent GB-1176196-A (GB)
Title: Improvements in or relating to Animal Feeding Stuffs
Inventor: GREGSON HENRY JOHN
IPC: A23K1/175
Filed: 1967-09-06
Abstract: 1,176,196. Animal licks. ISAAC SPENCER & CO. (ABERDEEN) Ltd. 26 Aug., 1968 [6 Sept., 1967], No. 40635/67. Heading A2B. A composition for making cattle or other animal licks comprises a water-sensitive setting agent, for example a calcium sulphate such as plaster of Paris, gypsum, or stucco, and at least one nutrient or medicament, for example limestone, bone flour, dicalcium phosphate, magnesite, urea, and sugar, which may constitute a major portion of the composition, trace ingredients such as iron, copper, cobalt, manganese, magnesium, and iodine, vitamins and drugs, and flavouring and sweetening agents. The composition may be formed into a cement-like slurry which may be cast into blocks or applied to walls from which the animal may lick.
Patent GB-1456336-A (GB)
Title: Control apparatus of dc motors
IPC: H02P7/29
Filed: 1974-09-19
Abstract: 1456336 DC motor control AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 19 Sept 1974 [22 Sept 1973] 40787/74 Heading H2J  Apparatus for D.C. motor control comprises a D.C. source 1, Fig. 2, a pair of switches 2, 3, e.g. transistors 11, 15, connected in series with the source 1 and a motor 18, and control means 27, 28 for alternatively rendering on and off the switches, such that whilst one switch is on the other switch is sequentially rendered on to off and off to on. In operation in the driving mode the waveform 29, Fig. 3 is applied to the base of transistor 15 and waveform 30 to the base of transistor 11. Switches 20, 23 of rotation reversing circuit 19 are closed as shown and D.C. flows in one direction through the motor. When both transistors 11, 15 are on, motor current flows from the source. As transistor 15 turns off, the energy stored in the reactor 17 causes energy flow in the motor 18, transistor 11 and diode 13 acting as a freewheel diode. Both transistors will subsequently conduct and the process repeats with transistor 11 turning off and diode 10 acting as a free-wheel diode. Regeneration from the motor to the source is provided by closing switches 21, 22 and opening switches 20, 23 and applying switching waveforms 31, 32 (Fig. 3) to the bases of transistors 15, 11 respectively. When transistor 15 is on and transistor 11 is off, back emf. causes current flow through diode 10 transistor 15 and the reactor 17 to store energy therein. When both transistors go off this stored energy together with the bask emf. passes a regenerative current through diode 10, source 1 and diode 13. Similar currents flow subsequently when transistor 11 turns on. Control signals 29-32 are formed in a circuit comprising a flipflop and AND and OR gates, Fig. 4 (not shown), a high frequency (1000 Hz) signal being applied to the flip-flop to produce control signals of 500 Hz frequency. The control signals may be modified so that each transistor is turned on and off a number (10) of times whilst the other transistor is on (during driving) or off (during regeneration), typical waveforms for driving and regeneration being discussed, Figs. 5 and 6 (not shown). The transistors 11, 15 may be replaced by thyristors or grid controlled valves and the switches 20-23 may take the form of thyristors.
Patent GB-1113886-A (GB)
Title: Antiperspirant composition
IPC: A61K8/26
Filed: 1966-09-13
Abstract: An aerosol antiperspirant composition comprises an aerosol propellant, e.g. trichlorofluoromethane, dichlorodifluoromethane and an effective astringent consisting essentially of a liquid solution of aluminum hydroxy chloride in subtantially anhydrous ethanol.  The two propellants specified above may be used as a 50/50 volume mixture.  The compositions may also contain ethanol soluble bacteriostats, e.g. hexachlorophene, emollients, e.g. lanolin, fumigants, perfumes and humectants, e.g. propylene glycol.ALSO:An antiperspirant composition, comprising an astringent consisting essentially of a liquid solution of aluminium hydoxy chloride in substantially anhydrous ethanol, is prepared by dissolving aluminium hydroxy chloride in an amount of substantially anhydrous ethanol sufficient to solubilize the aluminium hydroxy chloride in the ethanol, the dissolving step including the step of aging.  The astringent may be mixed with an aerosol propellant to provide an aerosol antiperspirant composition.  The compositions may also contain ethanol-soluble bacteriostats (e.g. hexachlorophene), emollients (e.g. lanolin), fumigants, perfumes and humectants (e.g. propylene glycol).  The ethanol contains less than 1% by weight of water.
Patent GB-1523114-A (GB)
Title: Long scale display
IPC: H03M1/00
Filed: 1974-09-20
Abstract: 1523114 Displays SOLARTRON ELECTRONIC GROUP Ltd 19 Sept 1975 [20 Sept 1974] 41008/74 Heading G4H [Also in Division H3] An autoranging digital electrical meter comprises an analogue to digital converter producing an output of N significant figures and a range indication signal, the output being directed to an M digit display, where N<M, the range signal selecting which group of N decodes of the display the output occupies. As described, a voltage input passes through a resistance presealer 2 and dual ramp a#d converter 4 into a counter 74 where it is held in B.C.D. form. The two most significant digits pass to a range controller 8 comprising comparators 86, 88 and relay drive unit 100 which operates presealer switches 34#40 to normalize the input. When the count is within selected limits it is passed to store 120 which outputs through gates 128#132, operated by logic 12, to a B.C.D.#seven segment decoder 142. Anodes 160#170 of a six digit display are selectively enabled by zeon means 184 controlled by a range signal from relay drive unit 100 to position the 3 digit output in the display to indicate the magnitude and range of the input (Fig. 2). In other embodiments a 6 digit shift register positionally stores the 3 digits prior to display (Fig. 3, not shown) or a 6 digit random access memory stores the digits addressed by the logic unit (Fig. 4, not shown).
Patent GB-984218-A (GB)
Title: Improved transistor trigger circuit arrangement
Inventor: ASKEW GERALD HAMILTON
IPC: H03K3/281
Filed: 1961-11-16
Abstract: 984,218. Transistor circuits. RANK-BUSH MURPHY Ltd. Nov. 16, 1962 [Nov. 16, 1961], No. 41011/81. Heading H3T. A bi-stable transistor trigger circuit arrangement comprises two cross-coupled transistors of opposite conductivity types in which triggering signals are applied to the base of each transistor via a capacitance from a further transistor amplifier, and in which at least one of the transistor amplifiers returning the trigger circuit to its " off " condition has its collector returned by way of a load resistor to the collector of that one of the cross-coupled pair of transistors other than that to the base of the transistor which it feeds. In Fig. 2, transistors 1, 2 are both conducting or non-conducting, depending on which input was last triggered. The input amplifiers 13, 14 have their collector load resistors 17, 18 taken to the collectors of the bi-stable pair so that they only receive the full supply voltage when they will be used to control the circuit state. This makes the arrangement less sensitive to spurious pulses.
Patent GB-1383613-A (GB)
Title: Securing members
IPC: C22C9/00
Filed: 1972-09-05
Abstract: 1383613 Aluminium bronze N C ASHTON Ltd 31 Aug 1973 [5 Sept 1972] 41018/72 Heading C7A A securing member formed from an aluminium bronze alloy of comoostion:- The member may be screw threaded (e.g. a bolt, setscrew or stud) and may be produced by hot or cold working processes (e.g. rolling, forging or thread rolling).
Patent GB-1169173-A (GB)
Title: Improvements in Circuits for Comparing the Amplitudes of Signals Applied to Two Input Terminals
Inventor: KERENYI IMRE ANTAL
IPC: G01R19/00
Filed: 1965-09-28
Abstract: 1,169,173. Diode switching circuits. G. & E. BRADLEY Ltd. 7 Nov., 1966 [28 Sept., 1965], No. 41222/65. Heading H3P. [Also in Division G1] In a circuit for comparing the amplitudes of signals applied to input terminals 10, 11a, change-over switching arrangement comprises diodes 13, 14 respectively connected between input terminals 10, 11 and a comparator 12 and further diodes 18, 19 supplying bi-polar switching pulses from 17, a variable resistor 20 or 21 being included in series with one of the further diodes 18, 19 so as to adjust the relative attenuation imposed on the signals from 10 and 11 to zero of the comparator 12. The circuit is applicable to the comparison of 500 MHz signals at 10, 11 by means of a milli-volt meter 12 described in Specification 1,112,419.
Patent GB-1357403-A (GB)
Title: Electroacoustic transducer
IPC: H04R25/00
Filed: 1971-09-06
Abstract: 1357403 Electroacoustic transducers MICROTEL NV 6 Sept 1971 [16 July 1971] 41409/71 Heading H4J A microphone, receiver or other electroacoustic transducer comprises a U-shaped armature 7 supported to permit free movement of one of its legs in an air gap defined between two permanent magnets 5, 6 which abut against opposite wall portions of a box-shaped housing 4 made of magnetically conductive material. Housing 4 has a single opening and this is in the side which permits entry of the movable leg of the armature 7. The other armature leg is fixed and is in the magnetic circuit comprising the housing 4 and magnets 5 and 6. The fixed armature leg is preferably secured to an outer wall of the housing 4. The movable armature leg passes through a coil 8 which, together with the housing 4, is secured to one side of a mounting plate 3. A relatively rigid sheet metal diaphragm 9 is secured to the other side by a springy rib 10 of thin foil which hermetically seals the diaphragm 9. A drive pin 11 is attached to the diaphragm 11 and butt jointed to the movable armature leg adjacent the housing 4. An enclosure comprises a container 1 and cover 2 hermetically sealed together. The housing 4 and armature 7 are spaced from the enclosure Acoustic vibrations pass through an opening in the cover 2.
Patent GB-1007158-A (GB)
Title: Thermosetting composition
IPC: C08L21/00
Filed: 1961-11-21
Abstract: A hard rubber polyblend comprises a major proportion of a highly unsaturated vulcanizable polyolefin polymer and a saturated unvulcanizable polymer or copolymer having a mol per cent unsaturation of no greater than 5%, and having been prepared from a mono-olefin containing at least four carbon atoms per molecule, the vulcanizable polymer being vulcanized into hard rubber, and the polyblend having a gradually declining modulus of elasticity between the glass transition temperatures of the unvulcanizable material and the completely vulcanized polymer.  The polyolefin polymer may be a polymer of butadiene, isoprene or dimethyl halodrene or copolymers of these materials with styrene, substituted styrenes and acrylonitrile. Polybutene, polyisobutene and butyl rubber are given as examples of unvulcanizable polymers.  Sulphur is the vulcanizing agent.
Patent GB-1532404-A (GB)
Title: Moulding method and apparatus
IPC: B29C37/00
Filed: 1975-12-15
Abstract: 1532404 Article ejection V J SHAW 15 Dec 1975 [25 Sept 1974] 41800/74 Heading B5A A concrete or plastics article cast at an upper station in a mould 22 is ejected at a lower station by inverting the mould and applying fluid pressure between the article and the base and/or sides of the mould. As described, the mould 22 supported on tables 21, 19 is raised by chains, pulleys and counterweights 25, 26 to receive concrete from a hopper 12 having ramoperated, pivoted outlet flaps 17. The hopper is moved by a ram over the whole mould on wheels 13 and tracks 14. The mould and tables 22, 21, 19 are lowered for screeding, and vibrating by a vibrator 22 mounted between the tables 21, 19. A pallet 23 is clamped pneumatically over the concrete, and the tables and mould inverted in bearings 31 to be held by pneumatic rams 36 against a counterweight 20. Air under pressure is fed through the mould bottom to release the article for ejection on to the unclamped pallet, under gravity and air pressure. The mould and tables are then moved by the wheeled supporting frame 10, to upset the operation in a different place. The air contacts the article directly, or through an inflatable bag, bellows, or a rigid metal or plastics/rubber false mould bottom. Pneumatic and electrical control circuits are shown, with failsafe rams and locks.
Patent GB-1319472-A (GB)
Title: Harvesters for beet and the like
IPC: A01D19/06
Filed: 1970-09-01
Abstract: 1319472 Beet harvester SOC ANON HERRIAU 1 Sept 1970 [3 Sept 1969] 41827/70 Heading A1F A beet harvester has two rotatable circular grids 1 on to which the beet are deposited after being lifted by shares. The beet are flung outwards against the fixed grids 5 which each consist of five bars arranged parallel to the plane of rotation of the circular grids. To avoid weeds clogging the fixed grids, the bars are fixed only at their ends, the front ends being attached to a plate 11 and the rear ends to a stay 13. A further grid 17 on each side forms the beet into a windrow. The central grids 20 prevent beets remaining on the circular grids from going forward. The harvester may be mounted on a tractor threepoint-hitch and driven by the p.t.o.
Patent GB-903549-A (GB)
Title: Infrared radiation detector
IPC: G01J5/06
Filed: 1960-12-06
Abstract: 903,549. Radiation detector mountings. HUGHES AIRCRAFT CO. Dec. 6, 1960 [Dec. 22, 1959], No. 42018/60. Class 40 (3). [Also in Group XXXVI] An infra-red radiation detector mounting comprises a vacuum flask having an inner and an outer jacket which define a vacuum chamber in which is disposed the detector, a filter, and an opaque shield, which together restrict the bandwidth and direction of radiation incident upon the detector, the inner jacket forming a reservoir for a cooling medium. An infra-red photo-conductive detector cell 11 is mounted on the end wall 14 of a tubular inner jacket 13 which, together with an outer tubular jacket 17, define the evacuated space 15 of a vacuum flask, said flask forming a reservoir 20 for a cooling medium such as liquid nitrogen. A lens 19 focuses the signal radiation through a window 18 and a wavelength limiting filter 26 on to the cell, the window forming an end wall of the tube 17 and the filter 26 being attached to a tubular opaque shield 10 disposed around the cell and tightly fitted to the tube 13. The jackets 13 and 17 are sealed at their common end remote from the cell, two electrodes 21 and 22 connected to the cell being introduced through the seal. The shield 10 and filter 26 are, together with the cell 11, in good thermal contact with the cooling reservoir 20 and this is stated to be advantageous if the filter is of the absorbing kind. An interference type filter may additionally be used situated either side of the window 18. The tubular jackets may be of metal or silvered glass, and alternative arrangements of the shield 10 and filter 26 are described.