baber/WOPTO huggingface dataset:
Patent GB-216533-A (GB)
Title: Process for the production of a half-stuff for the cellulose manufacture
IPC: D21C1/02
Filed: 1924-05-26
Abstract: 216,533. Ges. f³r Mechanische Zellulose, (Assignees of Gahler, J. J.). May 25, 1923, [Convention date]. Pulp, preparation of.-In the production of half stuff from grasses such as prairie grass, floating meadow grass, or reed grass, reeds, and similar plants, the materials in the green state are reduced to chaff of about 3-6 centimetres length, and broken up and washed with water in a rag engine, edge mill, or similar apparatus. The larger part of the green colouring matter and other detrimental constituents is thus removed and the material pressed into cakes, bales, or other form suitable for transport and for charging boilers wherein cellulose may be produced by the use of caustic soda or other cheap chemicals. Specification 179,885 is referred to. According to the Specification as open to inspection under Sect. 91 (3) (a), a sterilizing agent may be added to prevent rotting during transport or storage. This subject-matter does not appear in the Specification as accepted.
Patent GB-154134-A (GB)
Title: An improved fabric for use in the manufacture of braces
IPC: D03D3/00
Filed: 1920-05-10
Abstract: 154,134. Soc. QuÚron et Courbon. March 19, 1920, [Convention date]. Tubular fabrics; strengthening non-metallic strips, cords, and the like, fabrics with.-A fabric for braces is woven tubular, the front half a, Fig. 4, being woven similarly to, and presenting the appearance of, shirt fabric, while the rear half b forming the wrong side has its ordinary warp threads e reinforced by supplementary warp threads c of a strength enabling the fabric to resist the stresses to which braces are subjected. The front half may have any suitable stripes or designs by using coloured warps, and the weft threads d extend around the tube and mav be of different colours to produce horizontal stripes. These may be hidden on the wrong side by a series of warp threads e, Fig. 5, woven to produce a satin texture and a white wrong side to 'braces having a striped front face, the supplementary warp threads c constituting a padding within the fabric.
Patent GB-474786-A (GB)
Title: Improvements in or relating to multi-cylinder internal combustion engines
IPC: F02B67/10
Filed: 1936-05-08
Abstract: 474,786. Pumps. SULZER FRERES SOC. ANON. May 8, 1936, No. 12999. Convention date, May 31, 1935. [Class 7 (ii)] In multi-cylinder internal-combustion engines of the kind comprising two or more rows of cylinders with two or more crankshafts, the waste gases from the cylinders being utilized to drive two or more waste-gas turbines each driving an associated supercharger, and each cylinder being supplied with air from only that supercharger whose turbine receives waste gases from that cylinder, each supercharger supplies supercharging air to the same number of cylinders in each row, whereby if the supply of supercharging air from any one supercharger should fail the resulting alteration in the torsional oscillations is substantially the same for each crankshaft. Rotary compressors 16, 17 each supplying air to the adjacent six of two rows of cylinders 2, 3 are driven by exhaust-gas turbines 18, 19 respectively, the exhaust gases from the cylinders associated with each compressor being led to the corresponding turbine. The air is delivered from each compressor through branch conduits symmetrically arranged with respect to the axis of the compressor whereby the compressors are interchangeable ; also, the conduits are tapered so as to increase the pressure of the air delivered.
Patent GB-351644-A (GB)
Title: Improvements in or relating to hot-water heating systems or apparatus
IPC: F24D3/08
Filed: 1930-04-28
Abstract: 351,644. Heating water. HESS' FABRIKKER AKTIESELSKAB, C. M., Gronnegade, Vejle, Denmark. April 28, 1930, No. 13016. Addition to 273,288, [Class 64 (i), Heating liquids &c.]. [Class 64 (i).] In a hot water heating system having a hot water tank a in the expansion tank b of the system, as described in the parent Specification, the tank a is fed from a tank h in direct connection with the atmosphere through an aperture t and wherein the water level is maintained substantially constant, for instance by means of a float valve o. The tank h may be situated above or in the upper part of tank b and is connected to tank a by a pipe i leading to the lower region of the latter. Water heated up to the temperature of the tank b is withdrawn through connection k.
Patent GB-329800-A (GB)
Title: Improvements in or relating to apparatus for cleaning the metal body portion of sparking plugs and like small parts
IPC: B24C3/28
Filed: 1929-04-26
Abstract: 329,800. Bramhall, D. April 26, 1929. Cleaning by use of sand and abrading-agents.- Sparking-plugs and like small metal articles are cleaned by a stream of sand or like abrasive directed against the article while in a container which may be slowly revolved. In the form of apparatus shown, a sand hopper 1 is provided with an air pipe 2 leading to a source of supply, a nozzle 4 terminating the pipe and a choke tube 6 supported adjustably by a clamp 5. A container 8 for the articles to be cleaned is rotatably supported in a cover 9 of the hopper. A pipe 13 serves as an air exhaust pipe, and a valve 14 in a pipe 3 serves to control the air pressure. The container 8 is constructed of wire mesh or other openwork material, the wires if required being covered with felt, rubber, or other material capable of withstanding the sand blast. A cock 12 in the pipe 2, when opened, allows air to escape to the nozzle, and sand is sucked thereby through the choke tube 6 and against the articles in their container. The container is slowly rotated either by hand or from a pulley 11.
Patent GB-1500773-A (GB)
Title: High voltage high frequency power supply
IPC: H02M7/523
Filed: 1975-03-27
Abstract: 1500773 Supply system for arc generators; converting UNION CARBIDE CORP 27 March 1975 [29 March 1974] 13023/75 Headings H2H and H2F A supply system of an ozone corona generator 45, comprises a D.C. source 10 in series with the primary of a transformer 38 and at least 2 series connected thyristors 31, 32, the load 45 being connected with the secondary of the transformer 38, and the thyristors being unequal with respect to their forward voltage drop characteristic. As shown, the thyristors 31, 32 are gated simultaneously by h.f. oscillator 20 and in operation are turned off by a reverse voltage generated in the transformer primary circuit by the collapse of the arc in the load 45. The provision of two or more series thyristors increases the reverse voltage time in each cycle and the inequality of the devices reduces the turn off time of the pair. The inequality may be produced by the parallel connection of resistor/ capacitor circuits with respective thyristors.
Patent GB-643845-A (GB)
Title: A new and improved process for producing shaped products from thermosetting synthetic resins
IPC: B29B7/74
Filed: 1946-05-01
Abstract: Cellular articles such as building slabs are cast from thermosetting synthetic resin by feeding separately to a mixing chamber at predetermined rates of flow an aqueous syrup of a partially condensed resin and a hardening catalyst for the resin, the syrup containing a substance which reacts with the catalyst to form a gas, mixing the resin and catalyst and permitting the mixture to flow into a heated mould where the condensation of the resin is completed.  The Specification describes apparatus for this purpose (see Group V) in which the rates of flow of both syrup and catalyst are adjustable and also the time spent by the mixture in the mixing chamber.  In an example an aqueous syrup of partially-condensed phenol-formaldehyde resin of 80 per cent total solids and viscosity 1000 centipoises, is filtered into a container therefor and 16 per cent of plaster of Paris by weight of the syrup is added.  The temperature of the syrup in the container, which is lagged and water-jacketed, is maintained such that under the prevailing gravity head 300 c.c. per minute flow into the mixing chamber.  The catalyst container is filled with 30 per cent hydrochloric acid and the apparatus adjusted to give a flow of 30 c.c. per minute.  A mould having a capacity 3 feet X 2 feet X 1 inch is placed in position and heated to 70 DEG  C. by a mixture of steam and air in the hollow walls of the mould.  The mixing chamber is adjusted so that the mixture issues as a foam with a volume ten times that of the syrup and catalyst.  The mould is filled in about ten minutes (the mixing chamber traversing the mould from side-to-side to give even filling) and the feeding of the syrup and catalyst stopped.  The mould is heated for a further five minutes at 70 DEG  C. and then opened and the slab removed. According to the Provisional Specification the mixing chamber can be caused to be traversed so as to permit the production of tubular products. Specification 571,284 is referred to.
Patent GB-1435417-A (GB)
Title: Electrical connectors
IPC: H01R13/28
Filed: 1974-03-25
Abstract: 1435417 Two-part coupling BENDIX CORP 25 March 1974 [26 March 1973 (2)] 13160/74 Heading H2E A multicontact hemaphoditic connector comprises identical interleaving insulating housings 1, 2; when opposed fingers 25 of one housing enter passages 40 of the other, projections 29 on each housing latch behind ribs 41 to enter openings 28 on the other on complete engagement. Each passage 40 carries a sheet metal contact 10 inserted from rear face 22 through constriction 23 with flat-part 11 between the lips of slot 27, until flange 14 abuts shoulder 24; slight rearward movement then engages end 7 in recess 33, retaining the contact unless released by a tool from the front. Flanges 14, 16, 18 are suitable for crimping to a wire (not shown). On engagement, contact surfaces 12 mate, forcing bow 6 back against flat 11 and causing end 7 to move away from flat 11, so enhancing retention.
Patent GB-257021-A (GB)
Title: Improvements in or relating to electromagnetic induction heating
IPC: H05B6/24
Filed: 1925-05-20
Abstract: 257,021. Burch, C. R., Davis, N. R., and Metropolitan-Vickers Electrical Co., Ltd. May 20, 1925. Induction furnaces. -Materials of low electrical conductivity are heated in a crucible of f conducting material of a high order of resistivity, for example 0.1 ohm per cubic centimetre, by subjecting the crucible to any alternating field of such frequency that the expression 2f #D #is greater than 1, so that the r Î 10<9> induced eddy currents are substantially confined to the crucible. D is the external diameter of the crucible in centimetres, f is the frequency and r is the resistivity of the material of the crucible in ohms per centimetre cube. The crucible 1 is supported on a heat resisting and preferably electrically insulating block 2 and is surrounded by lagging 5 enclosed in a silica tube 3. The turns of the water-cooled inductance coil 6 are separated by ebonite washers 7. The whole furnace is enclosed in a box 8 mounted on trunnions. Dimensions are given in the Specification for various furnaces. Specification 217,869 is referred to.
Patent GB-654447-A (GB)
Title: Electric heating cloth
IPC: H05B3/34
Filed: 1948-05-14
Abstract: 654,447. Electric heating fabric. GAMARD, S. May 14, 1948, No. 13269. Convention date, June 23,1947. Drawings to Specification. [Class 142(iv)] [Also in Group XI] An electrically heated fabric comprises insulated resistances each formed by winding a helix of conducting wire on a cotton core and coating it with an insulating plastic comprising rubber or vinyl plastic, oxidized linseed oil or varnish. The resistances cross each other or cross textile or metal threads and are united with each other or the threads at the crossing points by an insulating plastic, which may be the coating or an additional plastic. Several resistance wires in contact or not may be embedded in a plastic core covered with cotton, rayon or glass threads. The metal or textile cross threads also have a plastic coating. The fabric may be formed by winding a continuous resistance over pegs on a frame. The woven fabric may be dipped in plastic or a plastic solvent to join the intersecting points, which may be sealed by a hot or cold press.
Patent GB-986098-A (GB)
Title: Improvements in or relating to electric circuits which are arranged to produce a voltage across a capacitor in dependence upon the amplitude of an input signal
IPC: G01R19/04
Filed: 1960-04-13
Abstract: 986,098. Semi-conductor demodulator circuits. GENERAL ELECTRIC CO. Ltd., and C. BOWDEN. April 13, 1961 [April 13, 1960], No. 13282/60. Heading H3T. A circuit arranged to produce a voltage across a capacitor in dependence upon the amplitude of an input signal comprises a transistor and a Zener diode connected in a D.C. path between the output circuit of the transistor and the capacitor. The input signal is applied to the transistor to control the current in the output circuit when the capacitor is discharging, the transistor being periodically cut off to charge the capacitor through the Zener diode in the reverse direction. The input signal is fed to a unit 2 which produces two quadrature outputs, the first of which has its positive-going portions removed and is fed through an amplifier 4 to the base of transistor 6 via resistor 9, and the second of which is fed to the shaper 3 which produces sharp positive-going pulses concident with the peaks of the negative-going signal. These pulses are of sufficient amplitude to cut off the transistor and are fed to the base via capacitor 5. During the time the transistor is cut off, the capacitor 15 charges through resistor 12 and Zener diode 14, during the remainder of the time period, the capacitor discharges through the transistor to a potential determined by current in the output circuit of the transistor, which is controlled by the input from amplifier 4. The resulting potential is smoothed and fed via emitter follower 19 to control the attenuation of attenuator 22 (see Specification 986,009) connected in a sweep oscillator signal path 25-32 of a vibration tester, the signal 1 being derived from an accelerometer mounted on the vibrator.
Patent GB-116816-A (GB)
Title: Improvements in Armor for Pneumatic Tires.
Inventor: CHILTON WILLIAM GRANT
IPC: B60C27/00
Filed: 1917-09-18
Abstract: 116,816. Chilton, W. G., and Hobgood, J. H. Sept. 18, 1917. Jackets and covers; tread band, projections, and surfaces. - A tyre cover comprises layers 7 of leather or other fibrous material enclosing a protective band consisting of circumferential and transverse strips 8, 9 respectively of resilient metal. The ends of the strips 9 are slotted at 10 to engage pins 12 on U-section annular strips 11. The strips 8, 9 are connected by the threaded shanks 25 of lugs 21 each having a squared base 20 and conical body fitting a corresponding housing 14 secured in the outer layer 7. The projecting outer extremities of the lugs 21 are threaded at 22 to receive renewable tread studs 24.
Patent GB-202043-A (GB)
Title: Improvements in screwdrivers and like hand tools
IPC: B25B9/00
Filed: 1922-05-12
Abstract: 202,043. Smith, W. May 12, 1922. Screwdrivers; wrench handles. -The handle a of a doubleended screwdriver or of a magneto spanner is provided with an axial bore b in which the shank c of the tool is slidable so as to project to varying extents, and is provided with a set-screw e adapted to engage any of a series of recesses d formed in one or both sides of the shank to fix the tool in adjusted position. A cross-pin k prevents the shank from protruding beyond the rear end of the handle.
Patent GB-918761-A (GB)
Title: Improvements relating to apparatus for adjusting analogue computing networks
Inventor: TERRETT DAVID STUART
IPC: G06G7/06
Filed: 1958-04-28
Abstract: 918,761. Automatic gain control systems. FAIREY CO. Ltd. July 28, 1959 [April 28, 1958], No. 13431/58. Class 38 (4). [Also in Group XXXVI] In an electric analogue computer of the kind set forth in Specification 918,762 comprising plural computing units each having a function synthesizing unit, a D.C. amplifier, and a potentiometric coefficient setting panel, apparatus for automatically setting the combined gain of a computing unit comprises (Fig. 1) a calibrated master potentiometer 205 (e.g. having a fixed resistor in series with three variable resistors all decade tapped) connected between the input of the potentiometer 222 preceding the amplifier 223 in the unit to be tested and the output thereof, and a chopper-amplifier 206, 207 receiving the slider voltage of potentiometer 205 to energize a demodulating vibrator 208, whose output is connected to multipled socket 210 on the computer rack into which is plugged the flexible cable of a pistol grip type switched servomotor unit (Fig. 2, not shown), geared to rotate an operating cup 216 engageable with the knob 221 of the potentiometer 222 of any required computing unit to reset it to an overall gain level, determined by the setting of the master potentiometer, at which the slider voltage of the latter is a null.
Patent GB-699896-A (GB)
Title: Improved hydraulic shock absorber
IPC: F16F9/348
Filed: 1952-05-28
Abstract: 699,896. Hydraulic dampers. GENERAL MOTORS CORPORATION. May 28, 1952 [June 29, 1951], No. 13484/52. Class 108 (iii). The piston of an hydraulic damper has two series of liquid-flow passages with respective flow-controlling valves, each of the valves having a restricted orifice, one of which is normally closed by spring means. In the construction shown in Fig. 1, a series of piston ports 67 connect the cylinder space 85 beneath the piston, with an annular channel 66 covered by a resilient disc-valve 55. Ports 80 connect the upper cylinder-space 86 with an annular channel 80a in the lower piston face covered by a resilient disc-valve 57. The disc valves 55, 57 are respectively engaged by resilient discs 54, 59 and are clamped against opposite faces of the piston by the action of a nut 60. The disc valve 55 has an orifice 70 which is normally covered by the disc 54. The disc valve 57 has a notch or orifice 58 which affords a permanently-open restricted-flow passage between the space 85 and the annular channel 80a. In operation, on compression, liquid passes upwardly through the piston via the notch 70. On an increase in pressure in the space 85, the disc 54 is upwardly flexed to uncover the orifice 70. On a further pressure increase, the valve disc 55 flexes upwardly against the pressure of a coiled spring 63. On extension, the orifice 70 remains permanently closed. Flow takes place firstly through the notch 58, and then through the valve 57 which lifts against its spring 76. In the construction shown in Fig. 5, an outer ring of ports 167 are covered by a disc valve 155. A ring check-valve 154 overlies an orifice 170 in the valve 155. An inner ring of ports is covered by a resilient disc-valve 157 having a permanently-open notch 158. In operation, on compression, liquid passes first through the notch 158 then also through the orifice 170 (when the valve 154 lifts). Finally the valve 155 opens against its spring 163. On extension, the valve 157 lifts after an initial flow through the notch 158. The orifice 170 remains permanently closed. The fixed and valve-operated orifices may be interchanged between the respective series of ports so that the additional orifice becomes effective on the rebound stroke.
Patent GB-226441-A (GB)
Title: Improvements in draught-regulators for steam-boilers and the like
IPC: H01M2/34
Filed: 1924-06-04
Abstract: 226,441. Wittling, L. June 4, 1924. Draught, regulating. - In door-controlled dampers for steam boilers wherein the closing movement of the damper is effected by gravity and regulated by the steam pressure acting on a valve controlling the flow of liquid from one cylinder to another, this valve has the form of a plunger 4 having a circumferential groove 14 adapted to register with ducts in the conical casing 1. The plunger is adjusted axially by the pressure of the steam acting on a diaphragm 5 and by an adjustable spring 7, communication between the dashpot cylinders being thus interrupted if the pressure in the boiler falls below the normal.
Patent GB-1152388-A (GB)
Title: Deodorizing Treatment of Aqueous Solutions
Inventor: ROEHM DAN CHRISTIAN
IPC: C02F1/50
Filed: 1967-03-22
Abstract: 1,152,388. Treating waste waters. D. C. ROEHM. 22 March, 1967, No. 13589/67. Heading C1C. Sewage containing hydrogen sulphide or other odorous compounds containing an -SH group are treated with α,#-unsaturated aldehydes or ketones. The following are exemplified:- 3 - butene - 2 - one, 3 - hydroxy - 2 - cyclohexen- 1 - one, 4 - methoxy - 3 - buten - 2 - one, 4 - (2 - furyl) - 3 - buten - 2 - one, 5 - phenyl - 2,4 - pentadienophenone, 3 - penten - 2 - ones, 3 - hexen-2-ones (mesityl oxide), 3-hepten-2-ones and 3-octen-2-ones, acrolein, trans-2-butenol, crotonaldehyde, trans-cinnamaldehyde, tiglaldehyde, 2-pentanal, 2-hexanal and 2-heptanal. Solvents and stabilizers may be present.
Patent GB-945750-A (GB)
Title: Improvements in steering mechanism
Inventor: BRADFIELD ALAN HERBERT EDWARD
IPC: F16H57/12
Filed: 1959-04-22
Abstract: 945,750. Steering gears. CAM GEARS Ltd. March 4, 1960 [April 22, 1959], No. 13715/59. Heading F2Q. In a rack-and-pinion steering gear, a rack 1 is urged resiliently into engagement with a pinion 2 by a slipper 4 having a recess housing a block 10 of rubber which also prevents the slipper 4 from impacting against a cover-plate 5. In a modification, a compression coil spring 6 replaces the rubber block 10, and a rubber packing-ring 9 prevents the slipper 4 from hammering against the cover-plate 5.
Patent GB-814920-A (GB)
Title: Power steering mechanism
IPC: B62D5/06
Filed: 1957-04-30
Abstract: 814,920. Vehicle power steering. BENDIX AVIATION CORPORATION. April 30. 1957 [May 31, 1956], No. 13757/57. Class 79(5)  In a power steering device for a vehicle an axially fixed steering shaft 84, Fig. 2, is directly connected to a fixed piston 82 within a movable power cylinder 74 which is connected to the steering linkage through a clevis 90 and to which fluid pressure is directed from a slide valve 44 movable upon rotation of the steering shaft 84 mounted in a housing 40 attached to the cylinder 74. The steering shaft 84 is axially located in a flexible thrust bearing 104 on a tubular jacket 108 attached to the vehicle frame 12 by a bracket 14. The shaft 84 has helical grooves 98 engaging balls 96 of a ball nut 92 interlocked at 93 with the valve 44. Movement of the valve 44 connects inlet and exhaust passages 60, 64 with passages 50, 52 leading to opposite ends of the cylinder 74. Passages 71, 73 to end chambers,70, 72 provide hydraulic feel. In the event of power failure the nut 92 engages end stops 110 or 112 so that the cylinder 74 is moved manually. The steering linkage comprises a pitman lever arm 20, Fig. 1, pivoted at 21 on a bracket 16 attached to the vehicle frame 12 and coupled to a drag link 22. The flexible bearing 104 permits oscillations of the shaft 84 as the steering linkage moves. In modifications (not shown) the valve is actuated by an acme threaded nut coupled to the valve by pins or balls engaged in counterbores.
Patent GB-297482-A (GB)
Title: Improvements in or relating to the manufacture of sugar
IPC: C13B35/00
Filed: 1927-05-23
Abstract: 297,482. Gaspar y Arnal, T. May 23, 1927. Drawings to Specification. Purifying saccharine liquids.-Sugar solutions, such as molasses, are treated with sufficient quantities of soluble ferrocyanides to precipitate alkali or alkaline earth salts including magnesium in the form of double ferrocyanides of calcium and potassium. Thus, if it is desired to remove potassium chloride, calcium ferrocyanide or a mixture of sodium ferrocyanide and calcium chloride may be added. To remove calcium chloride, sodium ferrocyanide and potassium chloride may be added. The precipitation may be effected in the presence of an alcohol or similar organic liquid.