baber/WOPTO huggingface dataset:
Patent GB-1437937-A (GB)
IPC: H02P6/28
Filed: 1975-01-10
Abstract: 1437937 Automatic control systems FUJI ELECTRIC CO Ltd 10 Jan 1975 [10 Jan 1974] 1209/75 Heading G3R [Also in Division H2] An induction motor 1 is supplied by an inverter 2 having a D.C. input from a battery 3 fed through a current control circuit 4 and a reactor 5, the circuit 4 comprising two choppers 41, 42 and two diodes 43, 44 and being controlled by a system consisting of members 12-20, whereby during the driving condition of the motor 1 the chopper 42 is continuously conductive and the chopper 41 is cycled on and off to respectively supply current to the motor from battery 3 through members 2, 5, 41, 42 and from the stored energy in reactor 5 through members 2, 42, 44, and during the regenerative braking condition of the motor both choppers 41, 42 are cycled on and off in synchronism to respectively supply exciting current to the motor from the battery 3 through members 2, 5, 41, 42, the voltage generated by the motor assisting that of the battery 3, and supply energy from the motor and the reactor 5 to charge the battery 3 through members 2, 43, 44. A comparator 12 receives the output of a detector 7 sensing the motor speed and a signal from potentiometer 11 indicative of a desired speed, the output of member 12 being applied to a device 13 controlling the frequency of the inverter 2, to a device 14 which converts the output to a desired current value and to a detector 17 responsive to the polarity of the output to control AND gates 19, 20 according to whether the motor is being driven or regeneratively braked. A further comparator 15 receives the desired current signal from member 14 and an actual current signal sensed by detector 6, the output of member 15 being applied to a device 16 controlling the chopper 41 directly and the chopper 42 through the gate 19. The gate 20 receives its second input from a generator 18 producing a continuous ON signal. Choppers 41, 42 operate at a frequency corresponding to the error signal produced by member 15, the chopper 41 being continuously controlled by the device 16 and the chopper 42 being controlled by the device 16 or the generator 18 according to whether the gate 19 or 20 is respectively enabled by the regeneration or the drive condition of the motor. The former operating condition is maintained down to low motor speeds due to the use of battery 3 to supply exciting current to the motor during the periods when choppers 41, 42 are simultaneously conductive. If desired, the device 14 may be omitted and comparator 15 may receive a fixed current desired value corresponding, for example, to a maximum possible current. The motor may drive an electric vehicle.
Patent GB-795815-A (GB)
Title: Digital data storage apparatus and methods employing the spin-echo technique
IPC: G11C11/16
Filed: 1955-01-14
Abstract: 795,815. Electric digital-data-storage apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Jan. 14, 1955 [Jan. 18, 1954], No. 1210/55. Class 106 (1). In a " spin-echo " digital data storage device a sample of a crystalline substance (such as potassium chlorate) having an internal electric polarizing field is used as the storage element, thus obviating the necessity of an external polarizing field, as when a liquid is used as the storage element. In the preferred embodiment in order to increase the time for which phase memory can exist (transverse relaxation time) a small constant homogeneous magnetic field is applied to the sample 22, Fig. 3, by D.C. coils 33, 34. This field lowers the probability of neighbouring nuclei assuming the same spin frequency (by virtue of the phenomenon of Zeeman separation) and hence reduces interference between adjacent nuclei (spin-spin flipping) and thus increases the relaxation time. As described in Specification 795,057 in order to reduce power requirements the Larmor bandwidth may be varied, this being achieved by coils 39, 40. The idea of selectively entering data into a number of crystals having different resonant frequencies by frequency modulating the R.F. input signal is mentioned. As alternatives to entering data by R.F. signals are suggested the methods of positioning the crystal between the plates of a condenser or physically oscillating the crystal.
Patent GB-883027-A (GB)
Title: Titanium alloys
IPC: C22C14/00
Filed: 1958-01-14
Abstract: A titanium alloy contains 1-40% of one or more alpha promoting elements, namely at least 1% of Zr with or without Al up to 12% Sn up to 23%, Sb up to 19%, one or more of the beta eutectoid promoting elements Cu, Ni and Co in amounts of from more than 5% and up to 20% of Cu and/or from more than 5% and up to 12% of Co and/or Ni, 0-3% of Si, 0-2% of Be, 0-0,5% of C, O and N but not exceeding 0,4% O and 0,25% N, the balance being Ti in amount at least 50% by weight of the alloy.  There may be substituted on a proportionate basis for up to one-half the maximum permissible content of the beta eutectoid promoting elements present in the alloys other beta stabilisers selected from Mo, V, Ta, Nb, Cr, Mn, Fe and W in the following amounts, up to 20% in total of one or more of Mo, V, Nb and Ta, up to 5% of Mn, up to 3,5% of Fe, up to 12% of Cr and/or W, and proportionally lesser amounts of these other beta stabilisers for lesser amounts of the said beta eutectoid promoters.  Alloys containing one or more of the beta eutectoid promoters Cu, Co, Ni, Si, and Be in total amount in the range 0,25-20%, and each subject to the maximum amount specified for it above, the said alloys otherwise having the composition specified above, may be heat treated above the eutectoid temperature until transformation to the beta phase is substantially complete and then cooled rapidly through the eutectoid temperature at a rate sufficient to produce martensite or a fine eutectoid structure.  The alloys may then be aged at a temperature below the eutectoid temperature.  Examples of the heat treatments are a) heating for 7 hours at 1400 DEG F., furnace cooling to 1100 DEG F., holding for 16 hours at 1100 DEG F. and then air cooling; b) heating for 24 hours at 1250 DEG F., furnace cooling to 1100 DEG F., holding for 16 hours at 1100 DEG F. and air cooling; c) heating for one hour at 1550 DEG F. and then air cooling.
Patent GB-449560-A (GB)
Title: Improvements in cupboard folding stairs
IPC: E04F11/04
Filed: 1935-01-16
Abstract: 449,560. Loft - ladders. MILLES, R. D., 10, Brasenose Road, Bootle, Liverpool. Jan. 16, 1935, No. 1440. [Class 20 (ii)] A loft-ladder of the type hinged at its upper end so that it can be set at an inclination or collapsed in a vertical position against a wall or in a cupboard below the loft opening, has each side formed of a pair of members 2a, 2b connected by link members 3 which support the ends of the steps, the members at each side collapsing on each other when the ladder is pushed into the vertical position. A folding strut 17 limits the outward movement of the foot of the ladder which may be supplied with wheels 14. A hand-rail 5 is carried by links 6 pivoted to the members of one side so that it collapses with the ladder.
Patent GB-563299-A (GB)
Title: A safety guard for presses
IPC: F16P3/00
Filed: 1943-01-29
Abstract: 563,299. Machinery guards. THOMPSON, J., and DARLING, M. H. Jan. 29, 1943, No. 1509. [Class 80 (iv)] A guard for presses has a safety member 1 which moves upwards to obturate the tool's zone and an operator-displacing member 22 which moves outwards from the said zone during the working stroke of the press. As shown, the member 1 is moved by a cable 15 which is fixed at 14 and passes round a pulley 12 movable with the press ram and over a pulley 10 fixed to the machine frame. The member 22 is a bar to which are pivoted links 23, 24. Link 23 is pivoted at 25 to the bottom of the member 1 and link 24 is pivoted at 27 to the machine frame, the two -links 23, 24, being nearly in a straight line when the guard is in its lowered position. Thus during the early part of the movement of the guard to its operative position the bar moves rapidly outwards to displace the machine operator if he is too close. The length of the bar 24 and the position of the pulley 12 are adjustable.
Patent GB-798472-A (GB)
Title: Improved method and apparatus for the flow control of fluids
IPC: G05D23/02
Filed: 1955-01-18
Abstract: 798,472. Fluid-pressure servomotor-control systems. CREPIN, R. Jan. 18, 1955 [Jan. 19, 1954], No. 1521/55. Class 135. A device for regulating rate of flow of fluid, e.g. gas, through a pipe 8 to a space 1 comprises an inlet valve 12 having a diaphragm 7, one face of which can more or less close the pipe and the other face of which is subject to pressure in a regulating chamber 5 communicating by a narrow duct to the pipe 2 upstream of the valve and through a pilot system to the space 1, the pilot system consisting of an appliance 15 detecting variation of a physical quantity, e.g. temperature in the burner space 1, and throttling the narrow duct, characterized in that the narrow duct opens into an intermediate space, e.g. pipe 17, where the pressure can be adjusted between the pressure in space 1 and the pressure in pipe 8 downstream of the valve 12. Gas from the inlet 2 passes to the chamber 5 above the diaphragm valve 12 via pipe 9, chamber 45, throttle 52 and pipe 9a. The pressure in the chamber 5 is determined by the leakage past the valve 30 operated by the thermal elements 25, 26 in the oven 1, through a pipe 10 connected between the fixed throttle 19 and the adjustable throttle 18 in the pipe 17 connected at one end to the valve outlet pipe 8 and opening at its other end into the combustion space. The pressure in the pipe 17 is a function of the pressure at the outlet 8 of the valve. Should the orifice 52 become blocked the thermal element will be heated to such an extent due to the open valve 12 that the strong spring 39 will overcome the light spring 42 and then lift the crown 35 attached to diaphragm 34 away from its seat 37 so that gas via pipe 9 and chamber 45 flows directly to pipe 9a. Various other embodiments are shown in which the passages 2, 8, chamber 5 and the chambers in the thermally actuated valve are connected in various ways to the pipe 17. The valve 15 may be responsive to the pressure in an enclosure or to the displacement of a centrifugal regulator of a turbine. One or more of the physical quantities may control one or several valves.
Patent GB-664916-A (GB)
Title: A machine for treating grains
IPC: B02B3/04
Filed: 1949-01-19
Abstract: 664,916. Treating grain, BUURMA, K Jan. 19, 1949, No. 1530/49. Class 58 In a machine for treating grains, i.e. husking, milling, polishing or cleaning, having a grooved rotary husking drum 18 surrounded by a husking jacket 23, the husking drum is formed with a groove which extends helically a plurality of turns around the drum circumference and runs the whole length of the drum. As shown a drum 18 mounted on a driving shaft 19 is provided with perforations 20 discharging into the spaces between the convolutions of the helical thread 21 the first four convolutions 22 being unperforated but provided with inlet slots 43 separated by wall parts 44 so that grain falling from the hopper 31 into the drum chamber below may be directed through the slots into the other convolutions 21 for treatment against the husking jacket 23 surrounding the drum 18 and being perforated apart from the part surrounding the inlet convolutions 22. A wall 18a separates the drum chamber under the inlet convolutions from the rest of the drum chamber from which air from a compressor 42 is fed through the perforations. The rate of feed from the hopper 31 is controlled by a flap 32 rotatable about a pin 33 and is adapted to reduce the feed by the movement of a lever 30 caused by the upward movement of an expansion chamber 26 situated above a vertical longitudinal opening in the husking drum when the grains pile up in the treating convolutions 21. The bottom of the convolutions may be covered by rubber, emery brushes or felt or fitted with pointed iron or steel band and a rasp effect may be obtained by the perforations being directed from the inside to the outside:
Patent GB-206410-A (GB)
Title: Improvements in and relating to renewable electric fuses
IPC: H01H85/147
Filed: 1923-01-17
Abstract: 206,410. British Thomson-Houston Co., (Compagnie Franþaise pour l'Exploitation des ProcÚdÚs Thomson-Houston). Jan. 17, 1923. Fusibbe cut-outs. - The armature between a fusible member F and the contact elements of a renewable fuse is a bolt and nut G which clamps the fuse between two angle members N, O external to the casing, one of these members N having a ring portion C fitting tightly over the end of the casing A. The second member O closes the opening in the end of the casing and is sufficiently resilient to act as a valve and relieve the pressure when the fuse blows. A cap containing an asbestos washer disposed over an aperture H screwed over the angle member serves to cool the issuing gases. The fuse casing may be filled with an insulating powder.
Patent GB-287984-A (GB)
Title: Improvements in or relating to apparatus for inserting cigarettes or other articles into trays or like containers
IPC: B65B19/12
Filed: 1927-01-20
Abstract: 287,984. Rose, A. G., and Rose Bros. (Gainsborough), Ltd. Jan. 20, 1927. Packeting articles in receptacles. - In apparatus in which one or a group of a succession of articles is inserted into a corresponding tray or container comprising a bottom portion, four upstanding side portions and an open top portion, packages 7 of cigarettes are fed intermittently by a conveyer 1 to a horizontally reciprocating plunger 11, a stop 10 preventing them from being moved beyond the plunger. The movement of the plunger transfers two packages across a bridgepiece 12 to be held between the side members 13, 14 of a holding element which is open at the top and bottom. The side 14 is resilient, forming part of a spring pressed lever 15 mounted on the stop 10. The packages rest with their ends against a stop 55 and the plunger 11 may be arrested in its movements to form a fourth side for the holding element. The holding element is disposed above an intermittently moving chain conveyer having receptacles 27 for the trays spaced equidistantly along it. The conveyer moves between guides 31, 32 and each receptacle is formed with upright flanges 28, 29 adapted to support the sides of the tray. Whilst the packages are being placed in the holding element, a tray is brought beneath the element and held there to permit a plunger 33, mounted on a vertically reciprocating arm 36, to push the packages into the tray.
Patent GB-731423-A (GB)
Title: Improvements in monogrammic electric signs
IPC: H01J61/40
Filed: 1951-01-22
Abstract: 731,423. Monogrammic signs. WINGRAVE, F. H. April 18, 1952 [Jan. 22, 1951], No. 1645/51. Class 118 (2). In a monogrammic electric sign of the type using tubular electric lamps to form letter arms, each letter arm has a backing which of itself is transparent. The backings can be solid or hollow and if hollow can be filled with any suitable gas or liquid or with solid material in particle form. The exteriors may be made transparent by grinding, blasting or staining or can be fluted, serrated or the like. When hollow they may be divided intp compartments each with a different filling.
Patent GB-880438-A (GB)
Title: Modified fibrous web material and the manufacture thereof
IPC: D21G9/00
Filed: 1959-01-16
Abstract: 880,438. Longitudinally and transversely compressed paper &c. CLUPAK Inc. Jan. 16, 1959 [Jan. 20, 1958], No. 1738/59. Class 96. A web 12, e.g. of moist paper, in a paper-making machine passes about a guide rod or roller 16 and into a nip between an endless, travelling rubber belt 18 and a hollow rod 20 backed by a stiffening bar 98 and heated by steam supplied at 110, the belt 18 being compressed against the rod 20 by an adjustable, hollow rod 26 and rigid backing bar 114 riveted &c. thereto. The paper &c. is thus compressed in its own plane without creping, as in Specification 727,261, but in the present Specification, the rods 20, 26 are described as mounted on a turn-table 92 on a platform 50 and having a central bearing 168, so as to be set at an adjustable inclination with the line of feed of the paper &c. 12 and the belt 18, the adjustment, which is effected by a worm and rack segment, allowing the paper to be shrunk at any angle between 0 and 90 degrees to the longitudinal direction. A spray 158 supplies water to the upper face of the belt 18 to lubricate its marginal portions which extend beyond the edges of the paper web, and a spray pipe 160 supplies lubricant, e.g. a dilute aqueous silicone solution to the face of the paper which is in contact with the rod 20. The rod 26 is perforated at 130 for water under pressure for lubricating the belt 18. A pan 162 collects water from the rod 26 &c. and discharges it at 163. The belt 18 is adjustably tensioned by a roll 22 and is guided by rolls 190, 192, &c. and edge-guided at 182. The roll 16 has screwadjustment at 146 &c. In modifications, the rods 20 and 26 may be slowly rotated; or the rod 26 may be formed with a concave surface opposite to the rod 20; or the paper may be passed through two compressing appliances, one of which may be as disclosed in Specification 727,261. Alternatively, by adjusting the spacing of the rods 20 and 26, the appliance may function as a supercalender. Specification 875,526 also is referred to.
Patent GB-937824-A (GB)
Title: Improvements in or relating to magnetic data stores
IPC: G11C7/02
Filed: 1960-01-19
Abstract: 937,824. Circuits employing bi-stable magnetic elements. BURROUGHS CORPORATION. Jan. 19, 1960 [Jan. 28, 1959], No. 1795/63. Divided out of 937,823. Drawings to Specification. Class 40 (9). The description is identical with that of Specification 937,823 but the claims relate to the prevention of voltage induction between those data and sense conductor portions which extend in parallel and serially interconnect the orthogonally-disposed conductor portions at the magnetic film elements, the interconnecting data conductor portions being arranged in groups so as to alternate in relative directions.
Patent GB-193014-A (GB)
IPC: D06M11/30
Filed: 1923-01-19
Abstract: In the manufacture of textile fibres from animal hair and bristles, wherein the fibres are first treated with chlorinating or oxidizing agents, the oxidized fibres are subsequently treated with a solution of a caustic alkali such as caustic soda of a strength just sufficient to give a distinct alkaline reaction, leaving the albumen bodies unattacked and thus avoiding loss in weight.  In an example, 30 litres of a .1 to .15 per cent solution of alkali are used per kilogram.  Specification 9044/99, [Class 42, Fabrics, Dressing &c.], is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of alkalies generally.  This subject-matter does not appear in the Specification as accepted.
Patent GB-643099-A (GB)
Title: Improvements in optical observation and illuminating means for medical and technicalpurposes
IPC: A61B1/24
Filed: 1948-01-21
Abstract: 643,099. Surgical lamps and adjustable supports therefor. GLAUSER, A. BURREN-. Jan. 21, 1948, Nos. 1872 and 1873. Convention dates, Jan. 23, 1947, and Oct. 30, 1947. [Classes 75(ii), 75(iii) and 75(iv)] [Also in Groups VI and XX] In viewing apparatus comprising a magnifying eyepiece surrounded by a ring of arc-shaped tubular lamps for illuminating the object to be viewed, condenser lenses arranged in sector shaped groups co-operate with the lamps and each group is adjustable to give a concentrated beam or a diffuse beam. The apparatus is s intended particularly for medical or dental purposes. As shown in Figs. 1 and 4 the lens 8 is mounted in a circular casing 3 containing a number of arc-shaped lamp 6 behind which are reflectors 16. Condenser lenses 14 are joined together in groups before the lamps and can be rotated about the axes of the lamps by means of a circular flexible shaft 7 passing through the condenser mounts and having ends in the form of racks 7a, Fig. 2, engaging a shaft 9 connected by a gear 10 to a knob 11 in the handle. This knob can be rotated to contract the shaft 7 and so rotate the condensers to the desired angle. Daylight filters 13 may be fitted behind the condensers. The apparatus may be mounted by a ball and socket joint 15 on to the arm 4 of an adjustable articulated stand which may be fixed to a dentist's chair or operating table or mounted on wheels. The stand may be hollow and have a fan at its base to direct air through the stand and through the casing 3 to cool the lamps.
Patent GB-854715-A (GB)
Title: Process for the manufacture of hydrophilic high molecular weight substances from dextran substances
IPC: C08B37/02
Filed: 1959-01-19
Abstract: High molecular weight hydrophilic substances from dextran are obtained by reacting a hydroxyl group containing dextran substance with a bifunctional aliphatic compound containing from 1 to 10 carbon atoms, the chain of carbon atoms of which may be interrupted by ether groups and containing halogen and/or epoxy groups at the ends of the chain, which react with the hydroxyl groups of the dextran with formation of linkages of ether type, so that a polymerization product containing at least 2 of the molecules of the dextran substance bound together by ether bridges is obtained.  The "dextran substances" include native or partially depolymerized dextran, ethyl, hydroxyethyl or 2-hydroxypropyl ethers of dextran, dextran glycerine glycoside, hydrodextran, or dextrans containing carboxyl, sulphonic or amino groups.  Suitable bifunctional compounds are epichlorohydrin, dichlorohydrin, epibromohydrin, dibromohydrin, 1, 2, 3, 4-diepoxybutane, diepoxypropyl ether, diepoxypropyl ethers of ethylene glycol, propylene glycol and polyethylene glycols. The reaction may be effected in the presence of water or an organic solvent such as dimethylformamide, and an alkaline reacting substance such as alkali metal or alkaline earth metal hydroxides, or tertiary and quaternary amines.  The temperature may vary widely but is preferably between room temperature and a temperature of 60-90 DEG C. The products obtained may be water-soluble and may be purified by precipitation with alcohols or ketones, extraction with water containing non-solvents, using ion exchangers or by dialysis.  The products may also be gels which are insoluble but capable of absorbing solvent with swelling and may be purified by washing with water or solvents.  The products may be subjected to partial depolymerization for correcting the average molecular weight, such as by mild hydrolysis with an acid, or alcoholysis.  The products may be used for theropeutic and pharmaceutical purposes.ALSO:Hydrophilic polymerization products containing at least 2 molecules of dextran substance (i.e. native dextran, partially depolymerized dextran or derivatives thereof such as ethers glycosides or hydrodextran) bound together with ether bridges via an aliphatic radical containing 1 to 10 carbon atoms are used as plasma substitute and as disintegrating agents for tablets.  In an example, a colloidal infusion for intravenous injection comprises 6% of a fraction obtained from the reaction product of dextran and epichlorohydrin, and 0,9% sodium chloride.  For preparation of the polymers see Group IV(a).
Patent GB-697676-A (GB)
Title: Improvements in or relating to rollers for use in machinery for preparing and spinning fibrous materials
IPC: D01H5/74
Filed: 1951-01-26
Abstract: 697,676. Rollers. LAIRD, T. H. Jan. 4, 1952. [Jan. 26, 1951] No. 2016/51. Class 42 (ii). A press roller, for use in preparing and spinning machines for jute &c. consists of a layer 1 of compressed, resin-impregnated, granulated cork secured by adhesive between two sheets of plywood, adjacent plies of which have their grain relatively displaced, the assembly thus formed being machined to form a roller with a central opening 12 for fitting onto a spindle or boss and with the edges of the plywood layers tapered away from the cork layers. The sheets of plywood may comprise two or more plies.