baber/WOPTO huggingface dataset:
Patent GB-203717-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F25D7/00
Filed: 1923-09-11
Abstract: 203,717. Duclaux, J. Sept. 11, 1922, [Convention date]. Refrigerating, vacuum processes for; special processes for.- In processes wherein a liquid refrigerant, such as water, is cooled by passing a current of air over or through the liquid, the air prior to its passage over or through the liquid is dried by means of a cheap non-caustic and non - corrosive agent such as calcium-chloride, and it circulates at a pressure below atmospheric. The heat of the air entering the system is taken up by the discharged air in a suitable interchanger. A suitable apparatus is shown in the Figure, wherein a container c for substances to be cooled is surrounded by a jacket d containing the refrigerant liquid, insulated by material b in an enclosing casing a. The air enters through a pipe g and expands in a pipe h, whence it passes through perforated plates i to bubble through the liquid, or passes over the surface of the liquid. The pipe a is formed as a coil f cooled by the discharged air passing through a jacket j around the coil. The air is drawn through the system by an aspirator connected to a pipe k, and may be returned to the drier to circulate in a closed system. The drier preferably comprises two chambers, the upper one containing anhydrous material and the lower one a saturated solution of the material. The system may be employed for more volatile liquids than water, such as alcohol, acetone, ether, ethyl chloride and methyl chloride, or combinations of two non-miscible liquids. The vapours discharged with the air may be recovered and returned to the system. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of gases other than air for a closed cycle system. This subject-matter does not appear in the Specification as accepted.
Patent GB-1512911-A (GB)
Title: Powered vehicles for loading transportation and unloading of materials
IPC: E02F3/64
Filed: 1976-06-02
Abstract: 1512911 Vehicle having a tipping skip COVEM-COMPAGNIE DE VENTE D'ENGINS MECANIQUES 2 June 1976 [9 June 1975] 22839/76 Heading B7B In a powered vehicle, a skip 5 is pivoted by a hinge 19 to a movable chassis part 1b which is itself pivoted by a hinge 20 to the front of a fixed chassis part 1a the axis of front wheels 4 or other running gear being vertically beneath the hinge 20, and control elements, which are preferably hydraulic jacks 29, 38, are mounted between the fixed chassis part 1a and movable chassis part 1b and the movable chassis part 1b and skip 5 respectively to permit tilting of the skip to the required position. In the transport position, the base of the skip rests on the chassis part 1b which itself rests on the chassis part 1a. By a combination of pivoting about hinges 19, 20, loading from and unloading to levels other than ground level is possible.
Patent GB-1131858-A (GB)
Title: Phonograph turntable drive system
IPC: G11B19/20
Filed: 1967-05-17
Abstract: 1,131,858. Driving phonograph turn-tables. V-M CORP. 17 May, 1967 [11 July, 1966], No. 22848/67. Heading G5R. A drive system for a phonograph turn-table having a flange for engagement with a drive belt, the system comprising a pair of connected, coaxially-disposed, different diameter pulleys, a generally flat belt for driving engagement with one or other of the pulleys and the flange of the turntable, means driving the belt to rotate the turn-table, and beltshifting means disposed closely adjacent the pulleys and comprising abutment means selectively movable to engage the belt from one or other side thereof, to shift the belt from engagement with one pulley to engagement with the other, thereby changing the rotational speed of the turn-table. As shown in Fig. 2, two twostep crown pulleys 46, 48 are provided but one only may be needed (see below). The turntable 22 is being driven clockwise by a motor 58 at 331/3 r.p.m. through the upper portion 50 of pulley 46 and a flat belt 60. When a lever 90 is pushed to the left so that speed-change button 32 and stop 106 occupy the lefthand end of their respective slots 30 and 108, two belt shifters 62 are rotated counter-clockwise, that mounted on support 65 being operated via coupler member 118. This movement causes an inclined abutment surface 84, Fig. 4, on each shifter, to engage and force downwards the belt 60, which thereupon begins to leave portion 50 of pulley 46 and to engage portion 52. When the edge of the belt reaches beyond the crown of portion 52, the belt is drawn down to centre itself on the crown. The turn-table is now being driven at 45 r.p.m. Modification.-In Fig. 7, the abutment surfaces 84, 88, of Fig. 4 are replaced by rollers 166, 172 respectively; this permits a belt shift to be initiated, by full movement of lever 90, when the belt is at rest; the belt in this case does not reach its final position on the appropriate portion of the pulley until rotation begins, whereupon the crown action completes the belt shift. The rollers reduce friction for belt-shifting in motion. In another embodiment (Figs. 8, 9, not shown), a modified form of the shifter member 62 of Fig. 4 is provided on a base which is moved laterally, instead of being rotated, by the lever 90. If the turn-table 22 is supported on a floating suspension on support plate 38, Fig. 3, pulley 48 is preferably mounted on the drive shaft of a second electric motor to equalize the side pull. Where the turn-table is not thus supported, only one pulley (46) may be provided.
Patent GB-626199-A (GB)
Title: Improvements relating to scaffold legs
IPC: E04G1/32
Filed: 1947-08-18
Abstract: 626,199. Scaffolding. DAVIS, W. J. Aug. 18, 1947, No. 22915. [Class 20(ii)] [Also in Group XIV] Scaffold legs for supporting platforms for decorators &c. are constructed with an aperture 1 having its longer dimension vertically, to hold a plank on edge to support the floor. A socket 4 is provided at the top for a horizontal plank. The legs are adjustable, sliding on one another by means of a ring 7 fixed to the part 6, the part 5 having a pin engaging one of a number of holes in the part 6. A loose sleeve 12 locks the parts in place. Alternatively the legs may be telescopic and have a pin passing through holes in both parts. In a further modification the aperture 1 is in a plate to which the legs are adjustably attached by bolts through the coinciding holes of a series of holes. In a further modification the leg is formed from a tube the lower part of which is split and splayed to form the legs.
Patent GB-182360-A (GB)
Title: An improved child's feeding bottle holder
IPC: A61J9/06
Filed: 1921-08-30
Abstract: 182,360. Brant, J. A. Aug. 30, 1921. Feeding - bottles, holders for.-A foldable holder for a child's feeding - bottle comprises a base member adapted to slide beneath a pillow on the child's bed, upright members 5 hinged thereto, a bottle-carrying rack 8 hinged to the members 5 and provided with a clamp 11 for the bottle, and strut means connecting the base and rack for locking them in open position. The rectangular member 1 has a cross-member 3 and upright ends 2 to which the members 5 are hinged, the members 5 being connected by a cross-member 6 pivoted thereto and provided with a brace 13 adapted to engage the member 3 and to be locked thereto by a lever 14. The rack 8 comprises parallel arms 9 and curved bars 10 on which the bottle rests, the clamp 11 being hinged to one bar 9 and having a catch 12 to engage the other arm 9. A link 15 connected to the base 13 is adapted to engage one of the bars 10 and to be locked thereto by a lever.
Patent GB-171152-A (GB)
Title: Improvements relating to the destructive distillation of carbonaceous substances
IPC: C10B49/02
Filed: 1920-08-05
Abstract: 171,152. Evans, E. C. Aug. 5, 1920. Coking processes. - Carbonaceous substances are destructively distilled at moderately low temperatures, for example from 750‹ to 1500‹ F. for the production of a residue containing a substantial amount of volatile constituents by the passage therethrough of hot gases. The charge is treated in a retort at the beginning of the process by hot combustion products of producer gas and for the rest of the process of part of the gas generated in the retort, the charge being caused to pass continuously through the retort. The air for combustion may be pre-heated by its admission through flues adjacent to the combustion chamber. A single gas producer may serve a battery of retorts which may have one combustion chamber in common, or the combustion chamber may be incorporated in the lower part of the retort setting. The temperature of the heating- gases may be regulated by the admixture of steam, air, or unburnt producer or retort gas.
Patent GB-635935-A (GB)
Title: Improvements in or relating to domestic water heaters
IPC: F24C13/00
Filed: 1947-08-21
Abstract: 635,935. Water-heating stoves. DRETTELL, W. J. Aug. 21, 1947, No. 23157. [Class 126] [Also in Group XIII] In a domestic water heater comprising a water tank 11 having one or more external tubular circuits each arranged near a heat source, e.g. around a gas ring or in a gas oven, at least one of the circuits comprises two or more separate tubes 20, 21, 22 the ends of which communicate with the top and bottom of the tank interior, and the intermediate parts of which are concentrically curved. The tubes around a gas ring may support an article to be heated. The inner tube of a set may have a larger diameter than an outer tube. The tank may be housed in, and heat, a cupboard mounted on an upstanding back frame on a gas cooking. stove. According to the Provisional Specification, there may be arranged parallel to the outer side of a tube a deflecting plate which is concave towards the tube.
Patent GB-625121-A (GB)
Title: Improvements in high frequency wave signalling systems
IPC: H03D7/14
Filed: 1946-08-06
Abstract: 625,121. Thermionic valves. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 6, 1946, No. 23312. Convention date, Feb. 14, 1942. [Class 39 (i)] [Also in Group XL (c)] In an R.F. mixing system two oscillations to be heterodyned are applied in push-pull to opposite ends of a pair of input electrodes of a double valve and the beat frequency is taken off by means of a tuned circuit common to two output electrodes of the valve. The Figure shows an arrangement in which the two frequencies to be heterodyned are applied to quarter-wave lines 53, 54 and 55, 56, whose unshorted ends are connected to opposite ends of grids 49 and 51 of a double triode, the anodes of which are connected through resonant circuit 69, 70, 75 tuned the difference frequency to the H.T. supply. The connections from the two R.F. sources 62 and 65 to the resonant lines are made through contacts 63, 64 and 66, 67 made adjustable to facilitate matching. Fig. 5 shows a plan view of a suitable double triode assembly consisting of two triode units 50 and 52 mounted on a glass base and having their cathodes and anodes interconnected. The double triode may be replaced by a double diode in which case the diode anodes are connected in the same manner as the triode grids and the circuit tuned to the intermediate frequency is placed in the common cathode circuit. Specification 616,889 is referred to.
Patent GB-700832-A (GB)
Title: Liquid-ring pump
IPC: F04C19/00
Filed: 1951-10-08
Abstract: 700,832. Centrifugal pumps. NASH ENGINEERING CO. Oct. 8, 1951 [Jan. 26, 1951], No. 23373/51. Class 110 (1) A liquid-ring pump comprises a rotor 8 operating in a chamber bounded by a lobed body 3, a ported cone 18 and a head 2, the ported cone being divided into an inner port 24 and an outer port 23, the outer port being longitudinally adjustable relative to the inner port. The inner port 24 is integral with the head 2, and the outer port 23 is secured to it by means of a ring 39 which is drawn against a shoulder 40 by means of bolts 41 which are threaded into the port 24. Shims 38, of metal, paper or synthetic material, are provided between the port 23 and the head 2 to permit adjustment of the longitudinal position of the latter. Part 23 can be adjusted rotatively to change the angular positions of the inlet and outlet ports 20, 21 relative to the lobes 4, 5. The longitudinal position of the rotor 8 can be adjusted by shims 49b which are inserted between a bearing bracket 47 and a member 48, 49 which carries the outer race of a bearing 50. The opposite bearing 50f is free to slide axially within its bracket 51. A partition 16 on the rotor 8 co-operates with a partition 17 on the body 3 to divide the pump into two chambers each having its own inlet and discharge. The two parts of the pump can be used separately or connected to a common source of supply or a common discharge conduit. The lower lobes 5 are preferably interconnected through a conduit 56 to provide an automatic distribution of the water in the water ring to the best advantage between the two parts of the pump. The water ring can be unloaded through an outlet 57. There may be separate interconnection for the automatic distribution and unloading. The pump may have only one chamber. Specification 379,891 is referred to.
Patent GB-812720-A (GB)
Title: Improvements in or relating to amplitude-limiters
IPC: H03G11/00
Filed: 1956-07-30
Abstract: 812,720. Thermionic discharge tube and transistor limiting circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 30, 1956 [Aug. 2, 1955], No. 23457/56. Class 40 (6). In a circuit for limiting positive- and negativegoing signals, the input is applied over an impedance 9, Fig. 1, to a common point of two electronic amplifiers 1, 2 the control elements being biased by a supply 4 and the control element of at least one amplifier 2 being connected to a voltage divider 6, 7 connected between the common point and a fixed potential. Provided the input is sufficiently negative for current to flow in thermionic discharge tube 1 the circuit operates as a cathode follower to feed out a substantially constant potential, the tube 2 being biased beyond cut-off. When the input is sufficiently positive, tube 2 conducts and due to feedback over resistors 6, 7 a constant positive potential is maintained on the output determined by the ratio of resistors 6, 7. A resistor 5 may be included to increase the potential applied to resistor 6 and improve the limiting. The resistor 9 may be omitted, resistor 5 being increased in value. The output voltage over the range of input when both tubes are non-conducting is substantially equal to the input signal. In order to obtain equal limiting on positive and negative inputs the resistors 6, 7 are made equal and the anode of tube 1 is connected directly to earth. In a modification, Fig. 2 (not shown), the discharge tubes 1, 2 are replaced by transistors. In a further modification, Fig. 3, complementary transistors 111, 12 are employed with the base of transistor 11<SP>1</SP> connected to a second voltage divider 6<SP>1</SP>, 7<SP>1</SP>. The bias supplied to the transistor is determined by the reference supply 14, and the resistors 7, 7<SP>1</SP>. Limiting of negative-going signals is effected by transistor 12 and feedback resistors 6, 7 when the input potential is sufficiently negative that the base of transistor 12 is reduced in potential and passes current in the emitter-collector circuit. In a similar manner transistor 11<SP>1</SP> limits positive-going signals.
Patent GB-462520-A (GB)
Title: Improvements in or relating to manifolding material
IPC: B41L1/32
Filed: 1936-08-27
Abstract: 462,520. Manifolding stationery. LAMSON PARAGON SUPPLY CO., Ltd., and NIXON, E. G. Aug. 27, 1936, No. 23545. [Class 16] In a manifolding assembly comprising continuous strips of record and transfer material having marginal feeding perforations in both margins of each strip, one or more or all of the strips have some of the perforations in each margin of enlarged size to compensate for lack of register caused by unequal stretch or shrinkage of the strips. Specification 409,162 is referred to.
Patent GB-1189582-A (GB)
Title: Method of Dividing Semiconductor Wafers.
IPC: H01L21/78
Filed: 1968-05-17
Abstract: 1,189,582. Etching. LICENTIA PATENTVERWALTUNGS G.m.b.H. 17 May, 1968 [26 July, 1967], No. 23583/68. Heading B6J. [Also in Division Hl] A semi-conductor wafer, e.g. of Si, Ge or a III-V compound, is subdivided into smaller dice by etching through a vapour-deposited metal mask, e.g. of Cr. After etching the wafer, the metal mask may be removed by further etching with dilute HCl activated with Zn.
Patent GB-1467328-A (GB)
Title: Pressure fluid sequential control arrangement
IPC: F16H61/02
Filed: 1974-05-28
Abstract: 1467328 Change-speed control; valves SERAM 28 May 1974 [29 May 1973] 23656/74 Headings F2D and F2V [Also in Divisions B3 and G3] An hydraulic control system including an electrical supply whose current is altered to change the system pressure correspondingly and thus cause a valve, for different values of pressure, to move to different positions whereby a hydraulic fluid supply is applied to different actuators. The embodiments described include a three and four speed gearbox for a vehicle having gear shifting jacks operated selectively according to the system pressure and an injection press operated by hydraulic rams in a sequence determined by the change in system pressure. Figs. 6 and 7 show the layout of a four speed gearbox arrangement and the distributer valves 44, 45 used to control the application of pressure fluid to the jacks respectively. The speed of the vehicle is measured by the transducer arrangement 51, 52 and a voltage proportional to speed is applied from box 53 to solenoid operated pressure limiter valve 54 to produce a system pressure Pc which is proportional to speed. The control pressure is applied through line 42 to distributers 44, 45 which when the pistons 74, 75 are in the position shown cause jacks 61, 63 to be pressurized and the gearbox to be in ratio 1. As the pressure increases with rising speed piston 74 will be depressed against spring 46 to pressurize jack 62 and release pressure from jack 61 causing ratio 2 to be selected. A further increase in pressure causes piston 75 to be displaced to put pressure on jack 64 and also to pressurize chamber 58 of piston 74 which is forced upwards to pressurize jack 61 again and thus select ratio 3. Finally piston 74 is forced downwards as the control pressure further increases to operate jack 62 and thus cause ratio 4 to be selected. As the speed and thus the pressure reduces the distributers are returned to the rest condition in reverse sequence by the action of springs 46, 47 which are constructed to apply different forces to the ends of the pistons. The speed of which gear change occurs may be modified in accordance with accelerator pedal position by providing either a variable resistance in the electrical supply circuit to the valve 54, Fig. 4 (not shown), or alternatively by mechanically moving the valve element of valve 54 by means of a cam rotated by the accelerator pedal, Fig. 5 (not shown). In both cases the effect is to alter the control pressure value at a particular speed of the vehicle. In the control of the injection press, Fig. 9 (not shown), each of a series of distribution valves, Fig. 10, controlling flow to a respective ram 104, 108, 110 or 111 is supplied via line 202 with the control pressure. The latter is derived by a timing device comprising an electric motor driving a cam which causes a potentiometer to vary the electric input signal to a solenoid valve similar to valve 54.
Patent GB-1000580-A (GB)
Title: Process for the production of methacrylonitrile and the production of methacrylic esters therefrom
IPC: B01J27/188
Filed: 1962-06-20
Abstract: Methacrylonitrile is prepared from isobutylene by a vapour phase reaction in which a gaseous mixture of isobutylene, oxygen and ammonia is passed over a solid catalyst comprising oxides of molybdenum, and bismuth and one or more of arsenic, antimony and phosphorus, and optionally of an alkali or alkaline earth metal, provided that either an alkali or alkaline earth metal or arsenic or antimony is always present.  Catalyst corresponds to the formulae Mo12BiaXbYc, Mo12BiaXbPd and Mo12BiaYcPd where X represents As or Sb, and Y an alkali or alkaline earth metal, and a is 6-12, b 0.5-5, c 0-5 in Mo12BiaXbYc and 1-5 in Mo12BiaYcPd, and d is 0.5 to 5.  The catalyst may be on a carrier such as silica or diatomaceous earth and secondary oxygen may be added intermediately.ALSO:Oxidation catalysts comprise the oxides of Mo12BiaXbYc, Mo12BiaXbPd, and Mo12BiaYcPd wherein X represents arsenic or antimony and Y an alkali metal or alkaline earth metal, and a is from 6-12, b from 0,5-5, and d from 0,5-5, and c is from 0-5 in the case of Mo12BiaXbYc but from 1-5 in Mo12BiaYcPd.  Examples are oxides of Mo12Bi9CaP, Mo12Bi9As1,5Na2, Mo12Bi9As1,5 and Mo12Bi9Sb2P and the catalyst may be prepared by mixing bismuth nitrate, phosphoric acid, molybdenum oxide, ammonium molybdate, arsenious acid, antimony trioxide, calcium hydroxide, calcium oxide and sodium hydroxide with a carrier such as diatomaceous earth or a silica sol, and calcining (400-550 DEG C.) the resulting mass. Specifications 867,438, 874,593 and 1,000,580 are referred to.
Patent GB-682639-A (GB)
Title: Manicuring device
IPC: A45D29/00
Filed: 1950-09-28
Abstract: 682,639. Manicuring appliances. ROOSA, V. D. Sept. 28, 1950, No. 23765/50. Class 81 (ii). A device for removing nail polish comprises a hollow container inside which is cleaning means in the form of a core carrying laterally projecting scrubbing means a portion of the cleaning means being located under a shoulder or in a recess of the wall portion of the container and projecting towards the centre of the container so that it may be engaged by the fingernail when inserted into the container. The container 1 may contain solvent 17 and is provided with a cap 4 having a sealing liner 7. The cleaning means 8 is in the form of a brush consisting of U-shaped twisted wire core supporting bristles, the core being bent to an L-shape so that it forms two horizontal leg portions 14 supporting a vertical inverted U-shaped brush portion which is wedged beneath an inwardly inclined wall portion of the container 1. In a modification (not shown) the vertical brush portion is M-shaped. The container wall has a recess to prevent an appreciable rise of level of liquid when the finger is inserted in the container. In an alternative construction (not shown) the brush is substantially annular in shape and is disposed in a horizontal recess in the sides of the container. In another modification (not shown) the container is provided with a partition forming two liquid containing compartments only one of which contains a brush. In a further modification (not shown) the container is formed from the closure member of a solvent container, the brush being of substantially annular shape.