baber/WOPTO huggingface dataset:
Patent GB-1361330-A (GB)
Title: Agricultural implements with braking mechanisms
IPC: F16D59/00
Filed: 1972-11-21
Abstract: 1361330 Mowers INTERNATIONAL HARVESTER CO 21 Nov 1972 53705/72 Heading A1F [Also in Division F2] A mower is provided with a braking mechanism comprising a braking surface, a drive member movable into engagement with the braking surface, and a driven member, the drive member and driven member being so constructed and arranged that if, in use, the driven member over-runs the driving member, the drive member moves into engagement with the braking surface and co-operates with the driven member to reduce its speed.  As shown in Figs. 1 and 2, drive member 48, when rotated by sheave 52, to which it is welded at 53, in direction A Fig. 1 (i.e. the direction where lug 55 engages lug 59 on hub 57 and lug 54 engages lug 60), is at the top of threaded connection 49, 44, and drives shaft 20 of lawn-mower cutter 33 through splines 46. When the torque on sheave 52 is interrupted, shaft 20 over-runs the drive member, whereupon lugs 55, 54 leave lugs 59, 60 respectively, and clear hub 57 by spaces 67, so drive member 48 is able to "wind down" on thread 44 until conical brake surface 50 contacts brake surface 40 on a fixed support sleeve 12. On this occurring, the increased speed difference of shaft 20 and drive member 48 provides a continuing self-servo brake action. Fig. 5 shows a forage-chopping mechanism with rotor 89. A drive member 104 having a threaded engagement 108, 101, with driven shaft 78, as before, is urged upwards against a stop washer 112 when sheave 109, welded to the drive member, rotates in the direction A, (the gap 114 shown in Fig. 5 then being absent). During driving, a drag spring 116, Fig. 6, having one end 117 located in a notch 115 in drive member 104, is dragged around a groove 99, Fig. 5, in the inside of fixed sleeve 71 in the direction opposite to arrow B, Fig. 6. On interruption of driving torque, drive member 104 "winds down" until its conical braking member 105 contacts the fixed conical surface 96, the relative motion being assisted initially by drag spring 116. Again, selfservo action occurs because upon contact of respective conical surfaces, the relative speeds of shaft and drive member are increased.
Patent GB-1279473-A (GB)
Title: Air compressor
Inventor: UENO TAKAHIRO
IPC: F02B75/02
Filed: 1969-11-04
Abstract: 1279473 Two-stage reciprocating compressors T UENO 4 Nov 1969 [15 Nov 1968J 53987/69 Heading FIN A two-stage reciprocating air compressor comprises a plurality of first stage cylinders 1A, 1B, 1C and second stage cylinders 1E, 1F, the pistons in the cylinders being reciprocated by a crankshaft 5 having equi-angularly spaced cranks which effect compression of the air in succession at equal intervals. The inlet and outlet valves of each cylinder are operated through rocker levers and push rods reciprocated by a camshaft geared to the crank-shaft, Fig. 3 (not shown).
Patent GB-1356530-A (GB)
Title: Memory system
IPC: G11C19/18
Filed: 1972-11-22
Abstract: 1356530 Memory refreshing systems INTERNATIONAL BUSINESS MACHINES CORP 22 Nov 1972 [30 Dec 1971] 54047/72 Heading G4C Memories 13, 16, 18, 20 (Fig. 2) each have refresh and timing control circuitry 36, 44; 38, 46; 40, 48; 42, 50 controlled by a processor 24 so that the memories may be refreshed at different time intervals-this enables for example memories near the cooling system to be refreshed less frequently than those further away. The memories may either be shift registers in which refreshing is effected by slow circulation of the data or random access memories in which ease write in and read out is inhibited when refreshing is taking place. In the embodiment of Fig. 3 (not shown) the system comprises random access arrays of integrated circuit chips containing FET memory cells each having address decode and drive circuitry (70), timing control (72) and refresh control (74), the processor addressing a cell over an address bus (62) and receiving or transferring data by a data bus (88). During refresh a "status" signal from the refresh control (74) inhibits addressing of the memory, the refresh control providing pulses at the required rate to the timing control and incrementing the address to be refreshed which is then fed to the address decoder. In the embodiment of Fig. 4 the system comprises arrays of pluralities of recirculating shift registers comprising serially interconnected FET memory cells. To transfer data to or from array 90, the address at which access is required is fed from processor 24 to control unit 25. This results in the contents of counter 104 representing the current location being refreshed being transferred to counters 118, 128. The required address is entered into counter 126 and the register is shifted until comparator 134 comparing the states of counters 128, 126 pulses control unit 25. Data is then transferred to or from the required shift register under the control of the signal on address line 76. To resynchronize all the shift registers in the array after transfer of data, the address shift register is further shifted until its position, represented by the count in counter 118, coincides with the initial position before transfer of data represented by the count in counter 128.
Patent GB-1408683-A (GB)
Title: Device for converting an acoustic pattern into a visual image
IPC: G01S15/89
Filed: 1973-11-22
Abstract: 1408683 Acoustic-to-visual image converters BENDIX-CORP 22 Nov 1973 [12 Dec 1972] 54209/73 Heading H4D [Also in Division H1] An acoustic-to-visual image converter includes a piezo-electric transducer for acoustic intensity-to-electric charge pattern conversion, a photo-cathode associated with the transducer, a monochromatic radiation source irradiating the photo-cathode and having a wavelength to bias the photo-cathode electrons at an energy level such that the electron current they provide is modulated by the electric charge pattern and has at any point a time-averaged value which depends on the acoustic intensity there, and means for converting the electron current to a visual image. In the Fig. 1 embodiment a quartz plate 1 receives an acoustic image and generates a charge pattern which modulates an electron current distribution produced by illuminating photo-cathode 3 (which may be, e.g., caesium iodide, caesium telluride, bi-alkali, tri-alkali, S-1, S-20, or S-25). The illuminating wavelength (200-800 nm) is chosen such that it corresponds to a non-linear part of the sensitivity versus wavelength graph (Fig. 2) for the photocathode material, whereby at any point on the photo-cathode the mean electron current I<SP>1</SP> depends on the local acoustic intensity. The modulated current is fed via a channel-plate electron multiplier 7 to a phosphor screen 9 on a fibre-optic substrate to form the visual image. Voltages at the photo-cathode, channel-plate input, channel-plate output and phosphor screen are typically 0, 300, 1300, 6300 v. respectively. The channel-plate is omitted in a second embodiment. The image converter may be packaged in an evacuated envelope.
Patent GB-1329423-A (GB)
Title: Tube walls
Inventor: POPOV N G
IPC: F22B37/10
Filed: 1970-11-18
Abstract: 1329423 Welding by fusion BABCOCK & WILCOX CO 18 Nov 1970 [18 Nov 1969] 54737/70 Heading B3R [Also in Division F4] A gas-tight tube wall comprises two initially separate panels 10, 12 having bevelled tube ends 22 and notches 18 in webs 16 which provide circumferential tube welding access when the panels 10, 12 are in abutting relationship. If the webs 16 are wider, separate notches are provided adjacent each tube end. In a modification, larger notches are provided in only one of the panels 10, 12. The access recesses provided by the notches 18 are filled in by weld metal or by welded-in insert plates. The circumferential tube welding may be effected by two arc passes, the first of which uses helium, and may be effected by two welders one on each side of the wall.
Patent GB-1243984-A (GB)
Title: Fluidised bed drying system
IPC: F26B3/08
Filed: 1968-11-20
Abstract: 1,243,984. Fluidized bed dryers. UNION CARBIDE CORP. 20 Nov., 1968 [20 Nov., 1967], No. 55093/68. Heading F4G. In a fluidized bed dryer the fluidizing gas distributer 8 comprises a perforated plate made up of an upper metal section 12 and a lower section 14 of insulating material, and a bubble cap 16 mounted in each perforation except the one associated with outlet 18 for the dried material. Each cap 16 comprises an inner and an outer member 42, 44, the outer member 44 having slots to allow fluidizing gas to pass from the plenum 2 through the cap into the drying compartment 4. The dryer comprises means 28 for controlling the temperature of the hot gas fed into the plenum 2 to maintain the bed temperature constant, means 32 for controlling the discharge of dried material through outlet 18 to maintain the level of the bed constant and means for regulating the pressure in the plenum 2. The fluidizing gas exhaust 38 may be connected to a cyclone for separating fines which may be recycled to the dryer, added to the dried material or discarded. Pipe 24 for introducing the material is tangential to compartment 4. Materials which may be dried are sugar, cocoa, coffee, gelatin, tea, cereal grain, yeast, aspirin, citric acid, ascorbic acid, sulpha drugs, calcium carbonate, organic dyes, calcium nitrate tetrahydrate, vinyl chloride/vinyl acetate copolymers, polyvinyl alcohol, polyvinyl chloride, polyvinyl acetate, polyacrylates, polymethacrylates, polyvinylfluoride and polyvinylidene halides.
Patent GB-1168518-A (GB)
Title: Expandable Adaptor
IPC: B65H75/24
Filed: 1967-12-05
Abstract: 1,168,518. Rollers. GOODYEAR TIRE & RUBBER CO. 5 Dec., 1967 [9 Jan., 1967], No. 55194/67. Heading F2U. An adaptor sleeve for insertion between an expanding mandrel (13) and a coil of strip steel (14) comprises an elastomeric sleeve 1 having circumferentially spaced axially extending localized stress areas 5 which permit expansion of the sleeve 1 without change in the sleeve thickness. As shown, the sleeve 1 has slots 4 in its external surface so that during expansion the stresses are concentrated in the areas 5 radially inward of the slots and the intervening parts of the sleeve retain their original thickness. In Fig. 3 (not shown), axial slots are provided in both the inner and outer surfaces of the sleeve. In Fig. 4 (not shown, axial bores are provided in the sleeve. In Fig. 5 (not shown), reinforcing cords are provided in the sleeve.
Patent GB-1475740-A (GB)
Title: Mass spectrometer
IPC: H01J49/10
Filed: 1975-09-17
Abstract: 1475740 Mass spectrometers BALZERS PATENT UND BETEILIGUNGS AG 17 Sept 1975 [20 Dec 1974] 55274/74 Heading H1D In a mass spectrometer system a substance to be analysed is fed through a jet 1 arranged to define a stream of substance which passes freely through an ion source 2 to a detector 3 measuring the quantity of substance injected. The position of the ion source 2 and detector 3 can be reversed, the stream then passing freely through the detector. A quadrupole analyser 8 has an electron-multiplier detector 9 and the system is enclosed in an envelope evacuated at 10. Numerals 4, 5, 6, 7 indicated amplifying and recording arrangements for the detector outputs. The ion source 2 has a hot cathode 11.
Patent GB-1170950-A (GB)
Title: Steel Sheet for Press Forming
IPC: C22C38/12
Filed: 1966-12-13
Abstract: 1,170,950. Steel sheet. YAWATA IRON & STEEL CO. Ltd. Dec.13, 1966 [Dec.17, 1965], No. 55786/ 66. Heading C7A. Steel sheet for press-forming consists, by weight, of C less than 0À1% Mn 0À01-0À5% W 0À002-0À3% optionally Cr and/or V 0À02-0À3% Fe and impurities - balance. The sheet is produced from ingot by hot-rolling, cold-rolling and annealing.
Patent GB-1388505-A (GB)
Title: Girdle with waistline area control
IPC: A41C1/02
Filed: 1972-12-06
Abstract: 1388505 Girdles INTERNATIONAL PLAYTEX CORP 6 Dec 1972 [13 Dec 1971] 56360/ 72 Heading A3V A girdle having a waist region constructed so as to resist curling or rolling over comprises a body encircling region 12 terminating at the upper part thereof in a plurality of upwardly projecting areas 22, e.g. of the scalloped formation shown, so as to provide a number of open spaces between the areas shown, and extensible band of material 36 extending circumferentially of the upper part of the body encircling region 12, the band being secured to the marginal edges of the areas 22 by stitching 36. Additionally a line of stitching 30 may also be provided at the intended position of the waistline of a wearer to secure the band 36 to the body of the girdle. The band 36 is preferably of elastic stretchable only in the circumferential direction, and the body encircling region 12 of two way stretch fabric. A central panel 16 of vertically extensible material may be included in the front of the region 12 and this may extend to one of the areas 22. The stitching 30 does not extend over the panel 16. The band 36 may extend only part way round the circumference of the girdle, the gap thus formed preferably being located at the back, and the width of the band 36 may be such as to just cover the open spaces between the area 22, to extend above the area 22, or to extend below the line of stitching 30.
Patent GB-1415871-A (GB)
Title: Snap hinge
IPC: E05D11/10
Filed: 1972-12-06
Abstract: 1415871 Snap hinges JULIUS BLUM GmbH 6 Dec 1972 [16 Dec 1971] 56416/72 Heading E2F A snap hinge particularly for furniture doors comprises a spring biased pivotable segment 5 which has a recess 9 into which a bearing pin 11 engages when the door is closed, the segment 5 and the spring 7 pivoting from the open position shown in Fig. 3 to that shown in Fig. 1 upon closing of the door. The spring 7 is mounted on a guide bolt 6. In the closed position of the door, Fig. 1, the spring 7 and the segment 5 resist initial opening of the door until a certain force is applied, then the door "snaps" open.
Patent GB-1267939-A (GB)
Title: Voltage control apparatus
Inventor: KLEIN FRANK NICHOLAS
IPC: H02M7/527
Filed: 1969-11-18
Abstract: 1,267,939. Inverting; control of A.C. motors. EATON CORP. 18 Nov., 1969 [9 Dec., 1968], No. 56471/69. Headings H2F and H2J.  In a digitally controlled inverter (e.g. for controlling the speed of and voltage applied to an induction motor) power switching means 21 are controlled in dependence on the comparison (at 53) of digitally encoded signals representing desired voltage (at 47) and desired frequency (from 33, 35). As described, an induction motor 11 is supplied from a three-phase bridge 21 (Fig. 1, not shown) of thyristors or transistors. The output voltage is varied by controlling the presence or width of notches 13 ... 17 in the output waveform under control of pulses L and M. The resulting waveform supplied to each phase takes a pulse-width-modulated form, simulating a sine wave. Control of frequency and output.-The frequency is determined by a voltage from source 31 controlling the frequency of a transistor oscillator 33, operating at 3 x 2<SP>9</SP> times the inverter output frequency. Counter 35 reduces the frequency to times the output frequency. Signals from intermediate stages of counter 35 (Fig. 6, not shown) constitute a digitally encoded signal which represents the phase within one-sixth of a cycle of the output. The output voltage is determined by a voltage-controlled oscillator 41, the output of which is repetitively gated at 43 into a counter 45 (Fig. 9, not shown) at intervals determined by counter 35; the output of 45 is repetitively transferred to a store 51 (Fig. 9, not shown). The timing of initiation of notches 13 ... 17 is adjusted in accordance with the setting of store 51. If store 51 is holding >52, notches 13 and 17 are eliminated. If >60, notches 15 are also eliminated. Trigger pulse distribution.-Pulses are distributed to the six thyristors or transistors in the bridge 21 by logic circuits 38 and 57 (Figs. 10, 11, not shown). The direction of motor 11 is reversed by a control signal (DC) (Fig. 10, not shown) which transposes the effective connections from block 38.
Patent GB-1365484-A (GB)
Title: Waveguide structures
IPC: H01P1/17
Filed: 1971-11-10
Abstract: 1365484 Producing circular polarization PLESSEY CO Ltd 10 Nov 1971 [27 Nov 1970] 56483/70 Heading H1W An arrangement for producing circular or elliptical polarization comprises a section of rectangular waveguide having each of one pair of opposed walls provided with transverse grooves. The grooves provide differential phase delay between orthogonal components of a plane wave propagated in the section. The drawing (not shown) illustrates a waveguide of square section provided with grooves of approximately square section and spacing equal to half their depth. Impedance matching may be provided by a gradual reduction of groove depth at either end of the section. It is stated that the arrangement is capable of broad-band operation.
Patent GB-1151910-A (GB)
Title: Flame Scarfing Torch Head and Unit.
IPC: F23D14/34
Filed: 1966-12-19
Abstract: 1,151,910. Flame desurfacing. MESSER GRIESHEIM G.m.b.H. 19 Dec., 1966 [22 Dec., 1965; 11 May, 19661, No. 56742/66. Heading B3V. A flame scarfing torch comprises a rear head portion 1, upper and lower lips 2, 3 attached at their rear ends to the head portion and having across their front faces fuel gas orifices 24, 25, a spacer 4 disposed between the lips to separate them by a gap 8 and oxygen orifice means 30 extending from the spacer into the gap. Oxygen is supplied by one or more pipes 5 to a transverse boring 6 in the head 1 from which extends orifices 22 or a slot or slots leading to the spacer 4 which seats into recesses (20, 21) in the lips. A plurality of units (43), (44), Fig. 5 (not shown) may be secured together side by side preferably with a single spacer 42. The fuel gas orifices 24, 25 may be individual bores or slits and may be supplied with a fuel gas-oxygen mixture. Alternatively a separate row of oxygen borings may be arranged above the fuel orifices.
Patent GB-571190-A (GB)
Abstract: 571,190. Ignition systems. ROTAX, Ltd., and HEAL, H. T. Dec. 1, 1943, No. 20095. [Class 7 (iv)] [Also in Group XXXV] A magneto a has an auxiliary inductive winding h with or without a series resistance in parallel with the circuit breaker e for reducing the duration of the spark discharge. In the case of aeroplane magnetos, it may be desirable to use the winding only at certain heights, in which case it is controlled by a switch actuated by atmosphere pressure.
Patent GB-1388660-A (GB)
Title: Manufacture of chlorinated hydrocarbons
IPC: C07C17/10
Filed: 1970-12-16
Abstract: 1388660 Chlorinated ethanes IMPERIAL CHEMICAL INDUSTRIES Ltd 10 March 1972 [16 Dec 1970] 57304/70 Heading C2C One or more of 1,1,2-trichloroethane, tetrachloroethanes and pentachloro-ethane is produced by bringing Cl 2  into reaction with 1,2- dichloroethane in the liquid phase in a reaction vessel, passing the reaction mixture from this vessel to another vessel or successively to other vessels, reacting the mixture therein with chlorine, chlorine being introduced separately into each reaction vessel, passing the crude reaction product from the final reaction vessel to a zone wherefrom there is separated a fraction consisting predominantly of tetrachloroethanes and pentachloroethane, and a fraction consisting predominantly of unreacted 1,2-dichloroethane and 1,1,2-trichloroethane, and recycling 1,2-dichloroethane and optionally 1,1,2-trichloroethane for further reaction with chlorine, wherein a compound which dissociates into free radicals is introduced separately into each reaction vessel and substantially all the said compound so introduced is dissociated in each reactor.
Patent GB-1269846-A (GB)
Title: Improvements in the manufacture of antibiotic compounds from substances of animal origin
Inventor: LEIKOLA ERKKI ENSIO
IPC: C07G3/00
Filed: 1969-11-25
Abstract: 1,269,846. Ganglio side sulphates. E. E. LEIKOLA. 25 Nov., 1969 [29 Nov., 1968; 30 June, 1969], No. 57491/69. Heading C2C. Compounds showing antibiotic action and having the probable structure are isolated from substances of animal origin especially hooves, claws, nails, hair, wool, leather, amnion or other connective tissue of mammal, birds' feathers and eggshells, fish fins and skins, skin of reptiles, shells of crayfish and molluscs supporting tissue and secretions of insects, e.g. silkworm cocoons, spiderwebs and wasps' nests, supporting tissue of echinoderm, e.g. starfish, of sponge animals, e.g. the common sponge, of protozoans, and secondary or waste products formed in the treatment of said substances, by extraction with methanol and water and chromatographing the residue obtained after removing the solvent from the extract on aluminium oxide or silica gel and elution with chloroform and methanol.
Patent GB-1207517-A (GB)
Title: Improvements relating to wearing plates for use in material handling and storage apparatus
IPC: B65G11/16
Filed: 1967-12-19
Abstract: 1,207,517. Wearing plate. HERMANN RAPPOLD & CO. G.m.b.H. 19 Dec., 1967 [19 Dec., 1966], No. 57579/67. Heading B8S. [Also in Division C7] The surface of a hopper 3 is provided with wearing plates 50 which are formed of pig iron reinforced by steel bars 1, the bars being formed in two layers at right angles. The plate is secured to the hopper 3 by bolt 2 which is embedded in the plate 50. The pig iron consists of 3À4-4À1% C, 0À15- 0À6% Si, 0À5-0À9% Mn, 1À6-2À0% P, and 0À025-0À15% S, the remainder being iron containing the usual pig-iron impurities.
Patent GB-1419968-A (GB)
Title: Aziridine derivatives
IPC: C07D203/08
Filed: 1972-12-21
Abstract: 1419968 Aziridines JOHN WYETH & BRO Ltd 10 Dec 1973 [21 Dec 1972] 59138/72 Heading C2C Aziridines of the general formula and pharmaceutically acceptable acid addition salts thereof, wherein Ar is a phenyl group optionally substituted by one or more hydroxy, halo, C 1-6  alkyl, C 1-6  alkoxy, halo-C 1-6  alkyl, nitro, amino or mono- or di-C 1-6  alkylamino substituents, R is a hydrogen atom or C 1-6  alkyl, aryl-C 1-6  alkyl or acyl group and R<SP>1</SP> is a hydrogen atom or C 1-6  alkyl group, which are novel provided that when Ar is a phenyl, pchlorophenyl or p-methoxyphenyl group and R<SP>1</SP> is a hydrogen atom, then R is other than a hydrogen atom or acyl group, are prepared (a) when R is a hydrogen atom, by treating a sulphate ester of an amino alcohol of the general formula Ar-CH 2 -CHOH-CH(NH 2 )R<SP>1</SP> or ArCH 2 CH(NH 2 )-CH(OH)R<SP>1</SP>, with an alkali; (b) when R is a hydrogen atom, by reducing an oxime of the general formula ArXC(=NOR<SP>2</SP>)R<SP>1</SP>, ArCH 2 C(=NOR<SP>2</SP>)CH 2 R<SP>1</SP> or ArCH 2 C(=NOR<SP>2</SP>)CH=CHR<SP>3</SP>, wherein X is a -CH 2 CH 2 - or -CH=CH- group, R<SP>2</SP> is a hydrogen atom or acyl, alkyl, aryl or aralkyl group and R<SP>3</SP> is a hydrogen atom or C 1-5  alkyl group; (c) when R is a hydrogen atom, by treating a haloamine of the general formula ArCH 2 CH(NH 2 )-CH(Hal)R<SP>1</SP> or ArCH 2 CH(Hal)-CH(NH 2 )R<SP>1</SP> with a base; and (d) when R is other than a hydrogen atom, by C 1-6  alkylating, aryl-C 1-6  alkylating or acylating the corresponding compound in which R is a hydrogen atom; followed optionally by salification of a resulting free base with a pharmaceutically acceptable acid. 2 - Amino - 3 - (3 - trifluoromethylphenyl)- propan-1-ol, O-sulphate ester is prepared by reacting 2-amino-3 - (3-trifluoromethylphenyl)- propan-1-ol with concentrated sulphuric acid. 2 - Amino - 3 - (3,4 - dichlorophenyl) - propan - 1- ol, O-sulphate ester is prepared analogously. 2 - Amino - 3 - (3,4 - dichlorophenyl) - propan- 1-ol (isolated as the hydrochloride) is prepared by reducing 2 - amino - 3 - (3,4 - dichlorophenyl)- propionic acid with lithium aluminium hydride. Pharmaceutical compositions having anorectic activity comprise, as active ingredient, an aziridine of the first general formula above or a pharmaceutically acceptable acid addition salt thereof, in association with a pharmaceutical carrier (which is a solid when the active ingredient is not novel).