baber/WOPTO huggingface dataset:
Patent GB-718443-A (GB)
Title: Machine for dispensing predetermined quantities of powder or granular material in loose or compressed form
Inventor: GROVES WALTER ROBERT
IPC: G01F11/18
Filed: 1951-11-30
Abstract: 718,443. Dispensing measured quantities of granular material. BRITISH INDUSTRIAL PLASTICS, Ltd. Nov. 26, 1952 [Nov. 30, 1951; May 2, 1952], Nos. 28199/51 and 11101/52. Class 106(5) [Also in Groups V and XXIX] A die holder 5 and hopper 13 are moved to the right over a stationary punch 15. to allow powdered material in the hopper to enter the die cavity 9, Fig. 2A. The die holder is then moved further to the right, to allow the moulded powder to fall out of a cavity under gravity, Fig. 4A. In a modification, a punch 12 may be moved to compress the material (see Group V). When the machine is only to be used for measuring charges of material, a lever 88 is moved out of the path of a cam 89 on the die holder. The ends of the bunches may be profiled and the die cavity may be circular, elliptical, square triangular or polygonal. Several opposed punches and die cavities may be operated simultaneously. The machine is operated hydraulically (see Group XXIX). To adjust the gap between the punches 12, 15 to vary the amount of the charge an adjustable stop 107 is provided for the piston 10. The movement of the die holder is correspondingly adjusted automatically. The first Provisional Specification describes a similar machine in which the air valves controlling the hydraulic circuit are controlled electrically instead of mechanically and the hopper may be partitioned in order that charges may be formed of different types of material.
Patent GB-1471283-A (GB)
Title: Method for dissolving acrylamide polymers
IPC: C08F2/30
Filed: 1974-06-25
Abstract: 1471283 Dissolving acrylamide polymers in water AMERICAN CYANAMID CO 25 June 1974 [2 July 1973] 28203/74 Heading C3P A method of dissolving aorylamide polymers in water comprises (A) providing a water-in-oil emulsion having dispersed therein a finely divided water-soluble acrylamide polymer of the non-ionic or cationic type and (B) inverting said emulsion in water containing a watersoluble surfactant of the formula wherein n is a number from 9À5 to 15, whereby the acrylamide polymer is released into the water as a solution. The acrylamide polymer may be polyacrylamide, a copolymer of acrylamide with a comonomer such as methyl methacrylate, acrylonitrile or styrene, or a copolymer of acrylamide with a cationic monomer such as 2-dimethylaminoethyl methacrylate, and may have a molecular weight of from 500,000 to 20 million.
Patent GB-764976-A (GB)
Title: A hand-guided power-driven percussive tool
IPC: E02D3/068
Filed: 1954-10-01
Abstract: 764,976. Percussive tools. WACKER, H. and WACKER, P. Oct. 1, 1954, No. 28283/54. Class 124. [Also in Group XXVII] A hand guided, power driven percussive tool comprises a housing, an internal combustion engine removably mounted on the housing, an outer cylinder carried by the housing, an inner cylinder slidable in the outer cylinder, a piston positively connected to a working implement slidable in the inner cylinder, transmission gear in the housing comprising a crank for reciprocating the inner cylinder, and a coupling between the engine and the transmission gear. As shown, a housing 7 carries a removable internal combustion engine and an outer cylinder 7a. The motor spindle engages a thread in a pinion 11, which in turn engages a gear 10 having a crank pin 9 to which is pivotally connected a rod 8 secured to an inner cylinder 4. The thread on the pinion is of opposite hand to the direction of rotation of the engine A piston 3, connected by a rod 2 to a working implement 1, is slidable in the inner cylinder and is subjected to the action of two spring 5, 6. The engine may be started by a handle 23 and controlled by a cable 19 and lever 21 attached to an adjustable handle 20. A breaking tube may extend from a corrugated seal between the cylinder 7a and the working implements 1. The piston rod 2 may pass through a gland 39 (Fig. 13) in the lower head of the cylinder 7b and guide rods 40 also passing through the lower head may be secured to the implement 1.
Patent GB-1527798-A (GB)
Title: Time diversity data transmission apparatus
IPC: H04L1/06
Filed: 1976-07-07
Abstract: 1527798 Time diversity system BARRY RESEARCH CORP 7 July 1976 [7 July 1975] 28337/76 Heading H4L A diversity transmission system comprises an encoder receiving a data stream SDI and operating asynchronously with respect to the stream bitrate, to produce at least three differentially delayed time diversity data streams DTO-DTN which are multiplexed at 5 and transmitted, the received signal being demultiplexed at 8 into received data streams DRO-DRN which pass to decoder 9 wherein the streams are again differentially delayed to equalize the overall delay for each stream, the resultant in-phase data streams being bitwise algebraically summed, the summed bits being individually compared with a threshold, a binary bit of the output stream SDO being determined in dependence on the comparison. The multiplex signal is processed by known f.d.m. multiplexer 5; demultiplexer 8. The number of active diversity streams may be varied in dependence upon a detected error rate, channels not needed for diversity streams being available for other data. Encoder Fig. 2 (not shown). The data stream SDI is fed to a cascade (21-1 ... 21-5) of delay stages the diversity channels comprising the stream SDI and an output from each stage. Each stage may comprise a shift register asynchronously clocked at a rate much higher than the data bitrate. The greatest delay {stream (DT6)} exceeds twice the greatest expected disturbance duration in the transmission channel. The delays may be provided by a circulating magnetic disc on to which is written the stream SDI the delayed streams being read off the disc by a plurality of spaced heads. Decoder Figs. 3, 4 (not shown). The number of active channels is selected by means of gates (26) the selection ensuring that in algebraic summing unit (27) the weighting for each active channel is in inverse proportion to such number, the gates receiving the outputs of delay units (24-1 ... 24-5) and the undelayed stream (DR6) the gate input streams thus having received the same overall delay in transmission. Each delay may comprise N, N-1 ... 1 cascaded shift registers all asynchronously clocked. The summed bits are compared at (40) with a reference voltage having half the value which any summed bit can achieve should there be full agreement amongst all the inphase streams for that bit, the output SDO being 1 or 0 in dependence on the comparison. The sum signal is integrated in unit (34) the result being displayed to give an indication of the channel error rate (CER). Each of the in-phase received streams is individually compared with the output stream SDO, indicators (38-0... 38-6) being provided to identify channels in agreement with the output or otherwise. The system is applicable to transmission via high frequency or troposcatter, radio circuits.
Patent GB-749906-A (GB)
Title: Method of improving the physical conditions of loading a coke furnace
IPC: C10B57/06
Filed: 1952-11-12
Abstract: 749,906. Materials for making coke. HOUILLERES DU BASSIN DE LORRAINE. Nov. 12, 1952 [May 23, 1952], No. 28490/52. Class 55(2). Not more than 5 per cent of an emulsion comprising 80 per cent organic products and 20 per cent water is added to pulverized coals to be charged into a coke oven. In an example the organic products comprise 10 per cent coumarone resin or other residues of benzol distillation and 90 per cent tars. The mixture may simply be added to the mass or sprayed upwardly on to the coal to be carbonized as it drops from the crushers. The proportion of coumarone resin or similar products may vary from 5 to 50 per cent and that of tars from 50 to 95.
Patent GB-668462-A (GB)
Title: Improvements in or relating to electric signal mixing circuits
IPC: G05D3/14
Filed: 1947-10-24
Abstract: 668,462. Control of motors. SPERRY GYROSCOPE CO., Inc. Oct. 24, 1947. [Oct. 24, 1946; Dec. 28, 1946] Nos. 28527/47 and 28528/47. Class 38 (iii). [Also in Groups XXXVIII and XL (c)] A.C. motors. A two phase squirrel cage servo motor 102 is controlled by the usual "error" voltage which after rectification is applied to a modulator 50 also fed from one phase of the three phase supply 54. The modulated error voltage is fed through a transformer 61 and a series resonant filter 101 for removing the second harmonic to the grids of gas discharge tubes 51, 52. The error signal is fed in like phase to the two grids which are also fed in anti-phase with a biassing alternating voltage through a transformer 53. The anodes are also fed in anti-phase from the supply 54 through transformers 74, 75 which also feed the motor fields 70, 71. A condenser 76 produces the necessary quadrature relationship between the field currents. In the absence of any error voltage the tubes 51, 52 fire for equal times, the equal anode currents shunt the secondaries of transformers 74, 75 equally, and the motor remains at rest. In the presence of an error signal one of the anode currents will predominate and a differential current will flow in the field windings causing the motor to run in a direction dependent on the phase sense of the modulator error voltage D.C. motors. In another embodiment, Fig. 7 (not shown), the servo motor armature is fed with a constant direct current and has two fields fed in push pull from a phase sense sensitive full-wave rectifier to which the error signal is applied. Specifications 604,349, 610,712, [both in Group XXXVIII], and 622,927 are referred to.
Patent GB-1351949-A (GB)
Title: Process for hydrating a nitrile to the corresponding amide
IPC: B01J23/72
Filed: 1971-06-17
Abstract: 1351949 Nitriles DOW CHEMICAL CO 17 June 1971 [17 June 1970] 28532/71 Heading C2C [Also in Division B1] A nitrile is hydrated to the corresponding amide by contacting the nitrile in the presence of water with a catalyst, the catalyst having been prepared by reducing with a reducing agent a mixture of (a) copper oxide and (b) at least one oxide selected from the oxides of Be, Mg, Ca, Sr, Ba, Al, Ga, In, Tl, Si, Ge, Sn, Pb, Zn, Cd, Hg, Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ac, Th, Pa, U, Np, Pu, Ti, Zr, Hf, V, Nb, Ta, W, Mn, Re Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, and Pt; the copper oxide of (a) being present in an amount of at least 0À5% by weight of the mixture, the oxide or combination of oxides of (b) being present in an amount of at least 0À5% by weight of the mixture, and the reduction being carried out so that no more than 98% of the copper oxide is reduced to copper metal. In examples, acrylonitrile is hydrated to acrylamide ; other nitriles specified are aceto-, propio-, pentano-, dodecano-, succino-, adipo-, methacrylo-, #-phenylacrylo-, 10-undeceno-, maleo-, fumaro-, benzo-, p-toluo-, a-naphtho- and phthalonitrile, crotonic nitrile, 2-cyano-2-butene and 1-cyano-1-octene-
Patent GB-726884-A (GB)
Title: Garment hanger bracket
IPC: A47G25/06
Filed: 1953-10-16
Abstract: 726,884. Hooks. AUTOYRE CO. Oct. 16, 1953 [June 29, 1953], No. 28575/53. Class 89(2). [Also in Group XIV] A hook to fit over the top of thick or thin doors comprises a U-shaped member 4 having a front leg 6, carrying a garment hanger 7, and a rear leg 8, which legs engage the faces of a thick door. The rear leg has notches 10 to receive hooks 14 at the ends of a resilient U-shaped spacer 11 to enable the bracket to grip a thin door. The portion 12 of the spacer is preferably arched to give an improved gripping surface.
Patent GB-741027-A (GB)
Title: Improvements in and relating to cooling jackets for gas-producers or shaft furnaces
IPC: C10J3/76
Filed: 1953-10-19
Abstract: 741,027. Cooling shaft furnace or gas producer walls. KLONNE, M., and KLONNE, A., [trading as KLONNE, A.]. Oct. 19, 1953 [Dec. 17, 1952], No. 28757/53. Classes 51 (2) and 55 (1). Water circulation in cooling jackets 1 for a shaft furnace or a gas producer is improved by providing vertical partitions 6 dividing the jackets into two chambers, feeding water from a drum 3 through a downcomer 2<SP>11</SP> into one end of the outer cooler chamber and taking the water off through a riser 2<SP>1</SP> at the same end of the inner, more highly heated chamber. Connection between the two chambers is provided by terminating the partition 6 short of the opposite end of the jacket to that at which the water pipes are disposed. The partition may be disposed to give a wider inner chamber as shown. The jackets 1 are disposed in opposite walls, Fig. 3 (not shown), or may form a U-shape, Fig. 5 (not shown).
Patent GB-335735-A (GB)
Title: Improvements in or relating to rotary compressors or vacuum pumps
IPC: F04C29/04
Filed: 1929-09-24
Abstract: 335,735. Sollors, W. H., Green, R. C. C., and Tarrant, H. W. R. Sept. 24, 1929. Fixed-abutment type; cooling and heating parts. - Tapered cooling ribs 3 on the casing 1 of a rotary compressor of the outwardly-sliding vane type form a helix and other ribs 8 mesh with the ribs 3 but substantial clearance is left between the two helices. Further ribs 9 helical or otherwise may be provided in an outer jacket 11. A cooling medium enters by a pipe 12 circulates from left to right around the ribs, that is in an opposite direction to the flow of fluid being pumped, passes through a port 14 and leaves by way of a pipe 13. In a modification one helix only is provided in the cooling jacket. A fan or pump for supplying the cooling medium to the jacket may be driven off the main compression shaft.
Patent GB-406083-A (GB)
Title: Improvements relating to wall plugs
IPC: F16B13/02
Filed: 1933-05-24
Abstract: 406,083. Wall plugs. MARSHALL, G., 74, Vernon Avenue, Raynes Park, London. May 24, 1933, No. 28888/32. [Class 89 (i).] In a tubular metal wall plug, the surface of the bore is smooth and the external surface has longitudinal grooves 4. The tube is split throughout part of its length. The external surface of the plug may be coated with shellac.
Patent GB-1381363-A (GB)
Title: Secondary pigments
IPC: C09C1/02
Filed: 1972-06-21
Abstract: 1381363 Corrosion preventive pigments PLUSS-STAUFER AG 21 June 1972 [9 June 1972] 28957/72 Heading C1A A calcium carbonate based corrosion preventive pigment is made by surface treating natural particulate, especially crystalline calcium carbonate with a long chain C 8-40  aliphatic amine or acid salt thereof. The treatment consists of spraying on a solution, or any other suitable process leaving a film of the amine salt which is preferably of the general formula: (in which R 1  is CH 3 -(CH 2 ) 15-17 - and R 2  is The calcium carbonate used has a preferred grain size in the range 0À1 to 20 Á.
Patent GB-159292-A (GB)
Title: Improvements in or relating to transmission gear for motor vehicles and the like
IPC: B60K17/04
Filed: 1919-11-21
Abstract: 159,292. Zeale, R. T. Nov. 21, 1918. Transmission gear of invariable ratio; wheeldriving attachments.-In wheel-driving gear of the kind in which the road-wheel hubs rotate on discs having eccentrically mounted therein shafts driving internally-toothed rings on the hubs, the discs being prevented from complete rotation by spring-controlled arms, the disc G is pivotally connected to an arm O which slides through a fixed bracket P and is controlled by a spring as shown. The driving-shaft D carries a pinion C gearing with a toothed ring A on the wheel hub E, the gearing being covered by a plate K<1>. The disc G may be made in two parts and is secured in position within the hub by means of a ring L.
Patent GB-447958-A (GB)
Title: Improvements in photo-electric sound pick-ups
IPC: G11B7/00
Filed: 1934-10-23
Abstract: 447,958. Gramophone pick-ups. JOHNSON, R. G., 21, South Oswald Road, Edinburgh.-(Johnson, E. N.; 24, Westminster Court, Highlands Road, Yeoville, Johannesburg, South Africa) Oct. 23, 1934, No. 29023/35. Divided out of 443,981. [Class 40 (iv)] Relates to photoelectric sound pickups of the kind in which the oscillating stylus carrier supports a mirror 14 whereby a beam of light 20 is influenced in accordance with the movement of the stylus and in turn varies the current in a circuit including a photoelectric cell 22. In order to provide a carrier of small moment of inertia, the stylus 17 is mounted in a socket 15 formed directly on a spindle 5 and is clamped by a screw 13 passing through a bore in the spindle, while the spindle is resiliently mounted by means of surrounding rubber sleeves in bearings 7 and has the mirror 14 directly secured to one end. The bearings 7 are arranged on plates 3 pivotally mounted on the end 2 of the tone arm, and the plates 3, after being adjusted to grip the sleeves 6, are secured by bolts passing through the plates, the tone-arm and a clamping-member 4. A rubber sleeve 19 surrounding the socket 15 is located in a socket 18 in the tone-arm 2. In this way the stylus 17 follows the sound-track by executing pivotal movements about the spindle 5 against the damping and centralizing action of the rubber sleeves 6, 19. The variation in the intensity of the reflected beam of light falling upon the photo-electric cell 22 is produced by means of a fixed cut-off 21. According to the Provisional Specification, the bearings 7 may be formed in plates arranged in superposed instead of collateral relationship.
Patent GB-927176-A (GB)
Title: Improvements in or relating to hydraulic devices for effecting raising and lowering of equipment coupled to agricultural tractors
IPC: A01B63/10
Filed: 1959-08-25
Abstract: 927,176. Power-lift linkages. REGIE NATIONALE DES USINES RENAULT. Aug. 25, 1959 [Sept. 8, 1958], No. 29075/59. Class 79(1) A tractor power-lift hydraulic system comprises a pump 3 mounted in a sump 1 supplying fluid through a pipe 2 to a distributer 4 controlled by a valve slide 10 and from which fluid may be supplied to a power cylinder 5, discharged to the sump or supplied to auxiliary mechanism through a pipe 28, the valve slide 10 being connected both to a control handle 12 and to the powerlift arm 9 by a linkage 11. The fluid supply pipe 2 has a relief valve controlled by a rod 26 actuated by the piston 6 at the maximum lifting position. In the initial, inoperative position, Fig. 1, fluid from the pipe 2 enters a chamber 14 blocked by the valve slide, build-up of pressure within which opens a valve 17 allowing the pressure fluid to discharge to the sump. The chamber 14 is reached through a throttle orifice 15. In order to lift the arm 9, the handle 12 is moved to the right, Fig. 2, moving the slide 10 to the left, and opening the chamber 14 through a passage 13 to the sump, thus closing the valve 17. The fluid pressure from 2 now opens valves 18 and 23 and the lift cylinder is supplied. As the arm is raised the valve slide is moved to the right by the linkage 11 until a position is reached in which the opening 13 is closed, causing the valve 17 to open, pressure within the cylinder causing valves 18 and 23 to close and so the raised position is retained. To lower the arm 9, the handle 12 is moved to the left as shown in Fig. 3, causing the slide 10 to move to the right and thus the cylindrical portion 10<SP>2</SP> will open the valve 18 by raising the rod 20. The rate of discharge can be controlled by a manually operable valve 21. As the lift arm 9 descends it moves the slide to the left and the movement will cease when the valve 18 is reclosed. A valve 24 for throttling the pressure fluid may be employed to provide limited lift to obtain weight transfer. A three-way cock 27 may be employed in the " lift " position to operate auxiliary apparatus.
Patent GB-204560-A (GB)
Title: Improvements relating to motor cycles
IPC: B62J13/00
Filed: 1922-10-25
Abstract: 204,560. Pehrson, A. P. H. Oct. 25, 1922. Exhaust, disposing of; dust-excluding casings. -The exhaust pipe a on a motor-cycle is led over the top run of the driving chain b of a motor cycle so as to serve as a chain guard. Side protecting plates d for the chain may be secured to the exhaust pipe and one of them may be turned underneath the chain. The outer plate may be in two parts d, d<1> to facilitate access to the gear.
Patent GB-686722-A (GB)
Title: Improvements relating to axle suspensions for vehicles
IPC: B60K5/00
Filed: 1950-11-28
Abstract: 686,722. Spring suspensions. DAIMLERBENZ AKT.-GES. Nov. 28, 1950 [Nov. 28, 1949], No. 29105/50. Class 108 (ii). [Also in Group XXXI] In an axle suspension for a vehicle having opposite side wheels at the ends of a rigid axle, the latter is mounted upon a thrust member so as to be swingable about a central longitudinal axis of the vehicle in relation to the thrust member which in turn is connected to the vehicle superstructure so as to be swing- able about an axis extending transversely of the vehicle. In the arrangement shown a driven axle c<1> which is sprung at each end thereof against a frame a by coil springs g<1> includes a pivot f<1> which engages a sleeve e<1> of a triangular shaped link b<1> pivoted about an axis extending transversely of the frame a. The axis of the axle b<1> may lie above or below a shaft h<1> connected to a driving unit d<1>. In another arrangement, Fig. 4 (not shown), the link is mounted on the same side of the axle as the driving unit, which latter comprises twin engines mounted transversely of the frame a. Coil springs extend between the frame and balancing levers rotatably mounted on each end of the axle. In a further arrangement, Fig. 5 (not shown), the link is constructed as, or combined with the driving unit. In another arrangement, Fig. 6 (not shown), the axle is sprung against the link which is separately sprung against the frame. In all cases, the axle and link may each be sprung separately against the frame and in some case the springing may also include that in the arrangement of Figs. 1 and 6. The longitudinal axis about which the axle swings may intersect the axis about which the link swings. Alternatively the two axes may be off-set. The wheel centres may lie above or below the axis of the swinging link in the unloaded position of the vehicle.
Patent GB-1028031-A (GB)
Title: Improvements in and relating to electrical conductive film components
IPC: H01B1/00
Filed: 1961-08-11
Abstract: 1,028,031. Spark erosion. S. M. COX. Aug. 13, 1962 [Aug. 11, 1961], No. 29129/61. Heading B3V. [Also in Division H1] An electrical component, e.g. a resistor, which comprises a conductive or semi-conductive film on an insulating substrate has one or more narrow zones of the film removed by means of electric sparking between the film and an electrode traversed in close proximity to the film. The process is applied to form a helical track in a conductive film deposited on the interior surface of a tube by the method of Specification 1,028,032. Fig. 1 shows a plan view of apparatus for producing a helical groove in the conducting film, in which the tube having the conductive film on its inner surface is mounted on the resilient stud 16 in the chuck 18 the tube being held in position by V-grooves in members 10 and 11 against which it is pressed by spring member 14. Mounted on the chuck shaft 20 is a worm 24 which engages a wormwheel on shaft 47 which rotates and by a friction coupling with rod 44 applies the traverse motion to the tailstock 30. The tailstock is mounted on shaft 36 which is journalled in bearings 37 and 38, the angular position of the tailstock about shaft 36 being adjusted by a spring-loaded screw arrangement 55 (Fig. 5, not shown). The tailstock carries a probe 31 comprising a platinum-rhodium wire with its end bent and flattened to form a thin segmental blade at right angles to the remainder of the wire. In operation the tube 60, Fig. 7, is connected, via a variable resistor 67, to the positive supply terminal, and the probe connected via a resistor 66, to the negative supply terminal. With a supply voltage preferably in the range 30-40 volts, resistor 66, equal to 5,000 ohms capacitor 68 2ÁF and resistor 67 500 ohms a pulsating voltage appears across the probe corresponding to the voltage across capacitor 68 charging through resistor 66 to the point at which a spark occurs between the probe and the film, thus discharging the capacitor and burning away a portion of the film until the spark extinguishes and the process repeats.