baber/WOPTO huggingface dataset:
Patent GB-801602-A (GB)
Title: Improvements in and relating to electrical systems
IPC: H03K3/16
Filed: 1956-02-09
Abstract: 801,602. Pulse generating circuits. DRUMMOND, P. (Philco Corporation). Feb. 9, 1956, No. 4073/56. Class 40 (6). In a blocking oscillator comprising an electric discharge tube having the anode and control grid circuits regeneratively coupled so that negative pulses are generated at the anode, the duration of the pulses is controlled by feeding back to the anode via a capacitive circuit a positive pulse which is coincident with the negative pulse. The Figure shows a blocking oscillator which may be free-running or triggered by positive synchronizing pulses applied at terminal 25. The negative pulse generated at the anode of tube 18 appears as a positive pulse across winding 16 and is applied via cathodefollower stage 26 back to the anode of tube 18 to increase the duration of the negative pulse generated in dependence upon the time constant of the feedback path which may be controlled by varying the value of capacitor 32. The pulse repetition frequency may be controlled by variation of resistor 22. In a modification, Fig. 2 (not shown), the pulses for triggering the circuit are fed via a cathode-follower stage into the grid-cathode winding of the blocking-oscillator transformer.
Patent GB-1082989-A (GB)
Title: Invalid hoist
IPC: A61G3/06
Filed: 1965-01-29
Abstract: 1,082,989. Hoists on vehicles. E. T. BURVILL. Jan. 28, 1966 [Jan. 29, 1965], No. 4128/65. Headings B8B and B8E. A hoist comprising a motor 23 and drum 24 is mounted on a trolley 20 on a track H of a frame 10 which is attached by pillars 13 and clamps 17 transversely outside the roof 14 of a vehicle. The trolley can be moved from its stowed position over the vehicle to a position extended over its side so that the hook 29 can be used to assist an invalid into the vehicle. Winch controls are mounted on handles 31 on the arm 22 of the trolley 20 to allow operation by the invalid. A manual winch may replace the motor-operated winch.
Patent GB-707239-A (GB)
Title: Method and apparatus for regulating the rate of feed of a machine producing materialin a continuous form
IPC: A24C5/39
Filed: 1951-02-21
Abstract: 707,239. Automatic weight control systems. AMERICAN MACHINE & FOUNDRY CO. Feb. 21, 1951 [March 9, 1950], No. 4200/51. Drawings to Specification. Class 38 (4) The apparatus is the same as that described with reference to Figs. 1, 2, 2a and 19 of Specification 707,238, the claims being directed to apparatus for regulating the rate of feed of a machine producing material in a continuous form, the speed of the feed being controlled by a variable speed drive, when deviations from a datum of the characteristic of the material produced are converted into electrical signals which are averaged over a period of time and then applied to a control circuit for adjusting the variable speed drive. Specifications 299,162, [Class 130], 558,491, [Group XXXVI], and U.S.A. Specification 2,253,921 also are referred to.
Patent GB-537446-A (GB)
Title: Improvements relating to heat interchange apparatus of the gilled-tube type
IPC: F28D1/053
Filed: 1940-03-06
Abstract: 537,446. Joining tubes to plates. SERCK RADIATORS, Ltd., and HARRISON, A. H. G. March 6, 1940, No. 4214. [Class 99 (i)] [Also in Group XIII] The tubes a of a heat exchanger are secured to the header tube plates e in separately removable sections each consisting of one or more rows of tubes held in end strips d which are adapted to be slid into engagement with the flanged edges of slots in the tube plates. The sides h of the end strips are bent inwards to engage the outwardly bent edges g of the slots. After assembly, the end strips and the tube plates are united by dipping in solder.
Patent GB-161158-A (GB)
Title: An improved device for sharpening scissors
IPC: B24D15/06
Filed: 1921-02-04
Abstract: 161,158. Scott, E. H. March 30, 1920, [Convention date]. Steels.- A device for sharpening scissors consists of a hard steel or like wire 6, stretched between jaws 7 on a handle 4; the scissors are moved as if to cut the wire. The handle may be of wood or metal, and advertisements may be attached to or marked upon it.
Patent GB-1524432-A (GB)
Title: Manhole assembly with removable cover especially for a carriageway
IPC: E02D29/14
Filed: 1976-02-03
Abstract: 1524432 Manhole assembly USINES ET ACIERIES DE SAMBRE ET MEUSE 3 Feb 1976 [11 Feb 1975] 04254/76 Heading E1G A manhole assembly comprises a removable manhole cover 11 associated with a flat frame 14 which is anchored to the carriageway 1. The cover has three projections A, B, C located at the apices of a triangle which bear within recesses 12a, 12b, 12c which are formed in the edge section 13  of the frame 14. The sectional view in Fig. 3 taken along the line V1-V1 of Fig. 1 shows the radial projection A of the manhole cover and the recess 12a sloped transversely to the diametrical direction A-O of the cover so that under the action of the weight of the cover a horizontal rotational displacement of the cover occurs. The resultant interlocking prevents tilting of the cover about any one of the sides of the bearing triangle ABC under the action of a downward force applied externally of the triangle.
Patent GB-872191-A (GB)
Title: Improvements in crusher linings
IPC: B02C2/00
Filed: 1960-02-08
Abstract: 872,191. Gyratory crushers. MACLEOD, L. R. Feb. 8, 1960 [Feb. 18, 1959], No. 4344/60. Class 59  In a gyratory crusher in which a segment 13 of the shell 10 is lined with a plurality of circumferential tiers 16, 17, 18 of concaves and in which the concaves 26 of at least the tier 16 each have a lip portion 36 to provide a surface against which a prising force may be exerted to remove the concave, a ring member 42 is secured to, or formed integrally with, a segment 14 of the shell and each lip portion 36 is provided with spaced integral ribs 40 which abut the ring member 42 and define one or more recesses to receive a prising tool 38. Reference has been directed by the Comptroller to Specification 771,166.
Patent GB-770488-A (GB)
Title: Improvements in or relating to hardenable epoxide resin compositions
IPC: C08G59/68
Filed: 1955-02-14
Abstract: Epoxy resins are hardened with phenolates of polyvalent metals such as Fe, Al, Ti or Sn or with aldehyde condensates of such phenolates. Suitable phenols are hydroxybenzene cresols xylenols or alkyl phenols such as p-tert. butylor p-tert. amyl-phenols. Suitable aldehydes for preparing the phenolate-aldehyde condensates are formaldehyde, hexamethylenetetramine, acetaldehyde, benzaldehyde or crotonaldehyde. In the examples the condensates are prepared by refluxing the phenolate and aldehyde in butanol.  The epoxide resin is preferably dissolved, e.g. in ethylene glycol, butanol, toluene or mixtures of these.  Hardened films may be obtained by storing, e.g. at 180-220 DEG  C.  The phenolates are preferably obtained by reaction of the metal alcoholate with the phenol.  In examples the following hardening agents are employed: (1) aluminium phenolate; (2) a condensate of Al-o-cresolate with paraformaldehyde; (3) Al-cresolate-benzaldehyde condensate; (4) aluminium-p-tert.-butylphenolate; (5) titanium-m-cresolate; (6) iron (III)xylenolate; (7) tin (IV)-phenolate; (8) Al.phenolate-paraformaldehyde condensate; (9) titanium - m - cresolate - hexamethylenetetramine condensate; (10) iron (III)-xylenolateacetaldehyde condensate; (II) Al.-phenolatecrotonaldehyde condensate; (12) Al.-p-tert.butylphenolate - paraformaldehyde condensate: Specifications 722,045 and 722,154 are referred to.
Patent GB-447733-A (GB)
Title: Improvements in and relating to power driven vehicles
IPC: B60G3/26
Filed: 1936-02-13
Abstract: 447,733. Vehicle spring-suspensions; axles. AUTO UNION AKT.-GES., Chemnitz, Germany. Feb. 13, 1936, No. 4414. Convention date, Feb. 13, 1935. [Class 108 (ii)] To improve riding qualities the front wheels 8, 9 are independently sprung by means of two side-by-side transverse springs 4, 5 and upper links 10 while the rear rigid axle is supported from the frame 1, 2 by longitudinal springs 25, 26 while the axle gear 27 is mounted on a transverse member 31 of the frame and drives the wheels 22, 23 through shafts 28, 29 having universal couplings 30, 31, 30<1>, 311. The rear axle 24 is curved downwardly and rearwardly at its middle part to clear the axle gearing 27 and permit the springs 25, 26 to seat thereon below the shafts 28, 29. The upper link 10 of the front suspension is made shorter than the effective length of the springs 4, 5 to keep the gauge of the wheels constant during deflection the link 10 and the springs being connected to an axle carrier 6 through rubber bushings, the link 10 being pivoted on a bolt 12 which is adjustably clamped to the carrier 6. The inner end of the upper link 10 is pivoted in a rubber bushing and buffers 15, 16 and shock-absorbers 20 are provided.
Patent GB-1176626-A (GB)
Title: Anthraquinone Dyes, their production and use
Inventor: BENGUEREL FRANCOIS
IPC: C09B1/30
Filed: 1968-01-29
Abstract: 1,176,626 Benzyl cyclohexane derivative. SANDOZ Ltd. 29 Jan., 1968 [10 Feb., 1967], No. 4515/68. Heading C2C. [Also in Division C4] Compounds of the formula where ring B may be further substituted may be prepared by (a) reacting a suitable benzaldehyde derivative with 3,5,5-trimethylcyclohexene-2-one-1 to give a benzal compound which is reduced to the 3,5,5,-trimethyl-6- benzyl-cyclohexanone-1 and then reductively aminated, (b) reacting a benzyl halide with 3,5,5-trimethylcyclohexene and reducing and reductively aminating the product. A sulphonic acid given may be introduced into ring B of the product by sulphonation.
Patent GB-987803-A (GB)
Title: Ball joint
IPC: F16C11/06
Filed: 1963-02-05
Abstract: 987,803. Ball joints. T. E. C. HIRST. Jan. 17, 1964 [Feb. 5, 1963], No. 4564/63. Heading E2F. A ball joint comprises two or more sliding members 3 supported in a body 1 and urged by a compression spring 5 into engagement with the ball-end of a pin 2, the inner and outer surfaces, B1, A1, of the sliding members having centres of curvature spaced apart axially of the pin 2 so as to compensate for wear of the engaging surfaces. The sliding members 3 are pressed from carbon steel blanks and are surface-treated with a coating of synthetic resin plastic. The compression spring 5 is retained by a housing held in the body 1. A seal 7 is provided to keep out foreign matter.
Patent GB-634551-A (GB)
Title: Improvements in or relating to rim brakes for cycles
IPC: B62L1/08
Filed: 1948-02-17
Abstract: 634,551. Cycle brakes. UBSDELL, A. J. Feb. 17, 1948, No. 4593. [Class 136 (i)] A rim brake comprises a pair of transverse levers 1, 2 mounted on a fulcrum 5 adapted to be fixed over the wheel, a pair of links 7, 8 pivoted to the levers and connected to the brake pads, which are guided towards and away from the undersurface 12 of the wheel rim by members 9 carried by the links sliding in guide members 11 fixed on either side of the wheel and a Bowden wire or like transmission means for rocking the levers relatively to one another to apply the brake. The brake pads are carried by shoes 13 fixed to the links 7, 8 by means of nuts 15 and bolts 14 engaging in slots in the links arranged so that each pad can be adjusted angularly and towards and away from the rim. The lever 2 has an extension 16 co-operating with one arm of the two-armed lever 1 for receiving movement from the cable 18. A return spring 20 retracts the brake mechanism when the pull on the cable 18 is released.
Patent GB-1206009-A (GB)
Title: Electrostatic separator
Inventor: HERMAN MARC
IPC: B03C3/76
Filed: 1968-01-30
Abstract: 1,206,009. Electrostatic precipitators. M. HERMAN and V. D. BOSCH. 30 Jan., 1968 [31 Jan., 1967], No. 4662/68. Heading B2J. An electro-precipitator comprises a pre-ionizing and a collecting zone. Each has two sets of electrodes, one set, in the pre-ionization zone forming the discharge electrodes 18, 20 Fig. 2. Each discharge electrode comprises a metal strip. As described, a channel section 17, Fig. 3, has legs bent outwards to form a strip 18 projecting outwards on each face of the plates 4. A similar metal section 19 forms the strip 20. Cleaning of plates 4, 8, 8', Fig. 1, is effected by brushes 21 operated by a handle 27, or by an hydraulic ram, Figs. 4 and 5, (not shown), with H.T. to the electrodes 8, 8' cut off. The plates 4 are earthed by connection to an earthed casing 1 of the apparatus. In a second embodiment, the gas flow is horizontal and in further embodiments more than two discharge electrodes may be used, and the electrodes cleaned by scrapers.
Patent GB-473819-A (GB)
Title: Improvements in projectiles
IPC: F42B10/16
Filed: 1936-02-19
Abstract: 473,819. Projectiles and gas-producing charges therefor. FEDERAL LABORATORIES. Feb. 19, 1936, No. 4687/37. Convention date, Dec. 11, 1935. Divided out of 473,754. [Classes 9 (i) and 9 (ii)] A gas-producing charge 22 is arranged in a projectile between vents 24 in the wall of the projectile, and a space 23 is left in communication with the vents to allow for the accumulation of the gases. The charge may consist of a mixture of chloracetophone or diphenylaminechlorarsine or both with smokeless powder and magnesium oxide or calcium carbonate. The vents 24 are covered by adhesive tapes lying in longitudinal grooves in the wall of the projectile. This wall is made thicker at the nose of the projectile and a weight 18 is inserted in the nose. The rear end of the projectile is closed and attached to a base plug carrying vanes as described in Specification 473,805 and the completed projectile is intended for use in a propellent cartridge as described in Specification 473,754.
Patent GB-554151-A (GB)
Title: Improvements in or relating to exothermic heating means for use in permanent hair waving and for other purposes
IPC: A45D7/06
Filed: 1942-04-10
Abstract: 554,151. Heating by chemical action. FRANCIS, H. April 10, 1942, No. 4749. [Class 64 (ii)] A chemical heating pad for use in permanent waving of hair contains mainly a mixture of copper oxide and aluminium granules, the latter coated with sulphonated castor oil to retard the rate of heating when an activating liquid is added. The mixture preferably contains also potassium chloride or sulphonated lorol to attract moisture, and a small proportion of silica. The activating liquid may be a solution of sodium or ammonium chloride. An example comprises copper oxide 75 parts, aluminium granules 25 parts, silica 1 part, sulphonated lorol .001 part. The pad contains a larger quantity of composition than is necessary for a single operation, so that it can be activated successively by adding more liquid. The composition is placed in a porous paper bag or between paper sheets in a bag of textile material having a woolly surface inside and smooth surface outside. One surface of the bag is covered by aluminium foil. In use, the pad is laid in the liquid in a shallow saucer, with the absorbent face downwards, and is then applied to the hair.
Patent GB-719568-A (GB)
Title: Improvements in apparatus for the concentration of liquids which when concentrated contain sticky of incrusting sediments
Inventor: BEETZ PIERRE
IPC: B01D1/22
Filed: 1952-02-22
Abstract: <PICT:0719568/III/1> Liquids which on concentration form sticky and/or incrusting deposits, e.g. phosphoric acid, are concentrated by distributing them on the upper surface of a transverse screen located in a concentration tower and admitting hot gases to the tower underneath said screen.  Phosphoric acid is distributed on a perforated screen 5 located in a tower1 by rotating tube 12 having a triangular outlet aperture 30.  Liquid falls through the screen and breaks into drops which encounter hot gases introduced at inlet 9. The gases extract water from the liquid, pass through the screen 5 and are extracted through pipe 11.  Concentrated liquid at the bottom of the tower flows over the wall 3 into a collecting vessel from which part, together with some fresh liquid, is recirculated.
Patent GB-1129721-A (GB)
Title: Improved apparatus for automatically locating capsules on the necks of bottles
Inventor: SATCHWELL JOHN SPENCER
IPC: B67B3/062
Filed: 1965-02-04
Abstract: 1,129,721. Capping bottles. BETTS & CO. Ltd. 4 Feb., 1966 [4 Feb., 1965], No. 4829/65. Heading B8S. Capsules in shoot 9 are deposited in the pockets 13a of wheel 8 under the influence of suction 26 for deposition upon a stream of bottles 4 (not shown) by a discharge device comprising three elements, viz. air jets 24, twin jaws 11a and stop 12. Stop 12, and jaws 11a  pivoted at 16, are operated together by cylinder 21, the cylinder operating jaws 11a via lazy tongs 17 pushed to the left by abutment 18. Operation.-The stack of capsules in shoot 9 rests upon stop 12. Stop 12 is withdrawn rightwards, and jaws 11a are operated to clamp the penultimate capsule of the stack. The bottom capsule thus being freed is discharged by jets 24 which blow air through passages formed in jaws 11a so that the bottom capsule is deposited in pocket 13a of wheel 18 which is rotated on a horizontal axis under the control of an approaching bottle so that when the capsule is up-ended into position 13c it is ready for discharge into the awaiting bottle.
Patent GB-575400-A (GB)
Title: Improvements in or relating to boat-lowering apparatus
IPC: B63B23/18
Filed: 1944-03-15
Abstract: 575,400. Boat lowering gear. WELINMAcLACHLAN DAVITS, Ltd., and HOWARD, W. L. March 15, 1944, No. 4853. [Class 115] A device whereby the lowering of a boat 19 from a winch 28 on a ship's deck is controlled by an operator on the boat, comprises a U-shaped bracket 3 secured to a bottom block 18 or other part of the boat and carrying a freely mounted drum 5 rotatable by a hand wheel 7 and provided with a brake drum 6 controlled by a lever 9. A flexible steel wire 13 is wound round the drum 5 and passes over sheaves 22-35 to a leyer 26 which actuates the main lowering brake 27 of the winch 28. The boat 19 can therefore be lowered by turning the hand wheel 7, sufficient friction being applied to the brake drum 6 by the lever 9 to maintain the required tension in the rope 13 necessary to keep the winch brake 27 open. When the boat is lowered from the ship's deck, the rope is prevented from becoming slack by friction imposed on the brake drum 6 by an adjustable spring 15 or by a counterweight on the lever 9.
Patent GB-1406357-A (GB)
Title: Dispensing pack assembly and method of making same
IPC: B65D41/16
Filed: 1973-01-31
Abstract: 1406357 Spinning; stamping; making aerosol containers L'OREAL 31 Jan 1973 [31 Jan 1972] 4897/73 Headings B3A B3J and B3Q [Also in Division F1] A groove 10 is formed in a dispensing container 1 either by three profiled revolving wheels (Fig. 2 not shown), by encircling the container with a two part die and applying an internal counter pressure, or during the formation of the dome 4 as shown in Figs. 3-5, in which an extruded container 3 is pushed into a die 19 to form shoulder 20, next into die 19a to form the dome and subsequently in 19b axial pressure causes the groove 10 to form.
Patent GB-1427993-A (GB)
Title: Asynchronous electronic binary storage and shift registers
IPC: G11C19/28
Filed: 1973-01-31
Abstract: 1427993 Shift register stores DYAD SYSTEMS Inc 31 Jan 1973 [1 Feb 1972] 4927/73 Heading G4C [Also in Division H3] The store comprises at least two stages, each of which includes a binary storage section and a control section. The register is of the type in which transfer of data from one section to the next is not under the direct control of an external clock and is so arranged that data is advanced automatically from stage to stage until the last stage not already storing data is reached. The control section can assume two or more stable states. In one state (information) it indicates that the associated storage section contains data, and in the other state (neutral) that the storage section is available to receive data. Each data bit is advanced from one section to the next via a respective single line which includes transfer means. The transfer means are permitted to transfer the data only when the control section of one storage section is in the information state and, at the same time, the control section of the succeeding storage section is in the neutral state. When transfer occurs the state of these control sections is reversed. The register illustrated in Fig. 1 comprises two identical stages 10, 10<SP>1</SP> which can each store four bits. For example a 4-bit signal on inputs D1i-D4i of stage 10 is stored in bi-stables 11- 14, which are formed from NAND gates and correspond to the storage section referred to above. The bi-stables' outputs are connected to the inputs of the next stage 10<SP>1</SP> via single lines which include transfer gates 23-26. The control section includes a bi-stable 29 (which assumes an information state or a neutral state, as appropriate) and gates 30-33. It provides a signal CBo which is O when data is being transferred, i.e. when it enables gates 23-26, and a signal No which is 0 when bi-stable 29 is in the neutral state. Upon data transfer (CBo = 0) the bi-stable 29<SP>1</SP> of the next stage is set to the information state so that No<SP>1</SP> becomes 1. This causes bi-stables 11-14 and 29 to bereset so that stage 10 is available to receive further data (No = 0). The control section is so arranged that the transfer can only occur if No<SP>1</SP> is 0 when CBi becomes 0. In another embodiment (Fig. 2, not shown) which uses field-effect transistors for the various gates and bi-stables, the circuit is so arranged that the storage bi-stables do not require to be reset after data transfer, contrary to the arrange. ment of Fig. 1. In this embodiment data stored in one stage is inverted with it is transferred to the next, so as inverter stage is needed in addition if the number of storage stages is even. The circuit may be modified to receive an inhibition input which prevents transfer from a stage, so allowing data to be held at will at any stage. The transfer gates may precede rather than follow the storage sections. Instead of bi-stable circuits charge storage components may be used.
Patent GB-282573-A (GB)
Title: Improvements in the production of water gas and hydrogen
IPC: C10J3/00
Filed: 1927-02-22
Abstract: 282,573. Synthetic Ammonia & Nitrates, Ltd., and Humphrey, H. A. Feb. 22, 1927. Coking processes.-Coal is dried at a temperature of 200 to 300‹ C. by hot combustion gases to which air is added to effect partial oxidation so as to control the coking properties of the material, and is then subjected to low temperature carbonization at net exceeding 600‹ C. to give a semi-coke, in the form of lumps which are suitable for use in a water gas generator. Tho water gas may be treated with steam at high temperatures to convert the methane into carbon monoxide and hydrogen. The semi-coke may, however, be heated to a higher temperature before use for the generation of water gas free from methane. The gas mixture, is then passed over a catalyst containing finely divided iron or metals at a temperature of 200-300‹ C. to generate higher paraffin hydrocarbons. The residue from this treatment or the origrnal gas mixture is compressed and passed, after separation of the paraffins and methane if present, over a catalyst such as basic zinc chromate for the production of methanol or may be treated with steam in the presence of an iron oxide catalyst at about 500‹ C. converting the carbon monoxide into carbon dioxide which is then removed, leaving hydrogen which is mixed with the proportion of nitrogen required for the synthesis of ammonia. Specification 292,060 is referred to.