baber/WOPTO huggingface dataset:
Patent GB-631037-A (GB)
Title: Removable cooling unit for compartments of transport vehicles
IPC: F25D19/02
Filed: 1947-07-14
Abstract: 631,037. Refrigerators. U. S. THERMO CONTROL CO. July 14, 1947, No. 18731. Convention date, July 30, 1941. [Class 29] [Also in Group XXIX] A self-contained removable unit for cooling the food storage &c. compartments of transport vehicles is driven by an internal combustion engine 75 in a casing 32 separated by an insulated wall 36 from a casing 46 containing the evaporator 123 and a fan 92, the whole being fitted in an aperture 53 in the front wall 54 of the truck. &c. so that the engine, the compressor 77 and the condenser 90 are outside the truck and the evaporator and fan inside. The speed of the engine 75 is governed by a thermostat 158 adjacent the evaporator. The gas engine fed from a fuel tank 93 drives by a belt 85 the refrigerant compressor, a fan 89 for cooling the condenser 90, and the fan 92 within the truck which draws in air from the central part of the truck, through an opening 49 in the casing 46, over the tubes of the evaporator 123' and supplies the cooled air to a longitudinal duct 101 arranged centrally beneath the roof 108 of the truck. Openings 115. 120 with baffles 116. 122 direct the cooled air over the side and end walls of the truck as shown in Fig. 2. To defrost the evaporator, or to warm the goods in the truck when necessary, a two-way valve 142 is turned by a handle 148 to supply hot gas from the compressor direct to the evaporator by a pipe 149. The expansion valve 135 is controlled by a thermostat 145 in the suction line 126 and supplies the evaporator through three capillary tubes 131, 132, 133. The thermostat 158 controlling the engine is in the path of the warm air returning to the evaporator and is connected by a pipe 159 with a bellows chamber 160, Fig. 14, to operate by a bellows 163 a lever 177 connected through a spring 179 and lever 180 to the throttle control 186 on the carburettor 76. A screw 197 regulates the pressure of a spring 192 acting against the bellows to set the thermostat. An arm 171 on the lever 177 carries an armature 172 positioned adjacent a magnet 173, and when the food compartment is warm the bellows 163 is constricted to bring the armature within the operative force of the magnet, which puts the throttle into position for full compression; this continues until the temperature falls sufficiently to enable the spring 192 to overcome the pull of the magnet 173 on the armature 172. The throttle is then gradually closed until, when the desired temperature is reached, the engine 75 is idling. The casing 32 is ventilated at 22, 34, 35. The water from defrosting falls into a pan 151 and overflows to' the outside through a pipe 154. The pan 151 is filled with mineral wool to hold the water which evaporates and passes through holes 155 to the warm air entering the evaporator thus maintaining the air in the truck humid.
Patent GB-299876-A (GB)
Title: Improvements in or relating to means for controlling the valves of internal combustion engines
IPC: F01L9/20
Filed: 1927-07-15
Abstract: 299,876. Bland, F. N., and Hall, J. G. July 15, 1927. Reversing.-A distributer device for controlling electromagnetically-operated engine valves, and adjustable for reversing, comprises pairs of levers l, m carrying contacts r, y and mounted on a ring k so that one set of levers l engages a cam d, and the other set m engages stops 1. The cam first moves the lever l until the contacts r, y engage, after which the levers and m move together, first outwards and then inwards until the lever m comes against its stops l, whereupon the contacts separate, the period of contact being varied by adjusting the stop 1. Several rings k are mounted one upon another around the cam d, and each ring is adjustable angularly by means of a screw device 2. The casing a surrounding the rings k may also be adjustable by a handle 10 for setting or reversing purposes. Also a switch for changing-over the connections of the levers l, m may be provided for reversing.
Patent GB-112442-A (GB)
Title: Improvements in Rotary Field Magnets.
IPC: H02K3/32
Filed: 1917-12-19
Abstract: 112,442. Ljungstrom, B., and Ljungstrom, F. Dec. 19, 1916, [Convention date]. Insulation; cores.-The side insulation 5, Fig. 3, enters grooves 4 at the bottom of the slot 1 thereby enabling the bottom insulation 6 to be made thinner than usual. The grooves 4 may be made by the insertion of a separate strip 7, Fig. 4, of magnetic or non-magnetic material or of both. Similar strips 8 may be placed beneath the wedges 2.
Patent GB-269470-A (GB)
Title: Improvements in spray-carburettors for internal-combustion engines
IPC: F02M7/24
Filed: 1926-07-29
Abstract: 269,470. Claudel, C. H. April 14, 1026, [Convention date]. Spray carburettors. - The float chamber 2 is mounted above a horizontal mixing-chamber 3 and is provided with a coaxial nozzle system 20, 25, 26, the emulsion formed between fuel admitted through the orifices 30, 32, and air entering through the orifices 31, 33, passing through orifices 22 into the tube 20 which delivers at 21 into the choke tube C. The air inlets 31 may be replaced by a controllable orifice in the top of the tube 26. The tube 25 is held in position by the tube 26, which screws into the bottom of the float chamber, and is provided with a projection 27 which engages on flanges 28 on the tube 25. The fuel inlet pipe may be attached to either end of a horizontal channel 5 formed in the carburettor body and containing a filter 6, the other end of the channel being closed by a threaded plug. The semi-circular float 16 is connected by arms 17, pivoted at 18 to a bracket on the float chamber cover 19, to the fuel inlet valve 14. Mixture for slow-running is supplied through a conduit 35 opening into the mixture conduit 3 adjacent the throttle 4, fuel and air being respectively supplied to the conduit 35 through the calibrated orifice 37 and through the passage. 38. In a modification, the lid of the float chamber is held in position by a spring bearing against an enlarged head provided on the tube 26.
Patent GB-388985-A (GB)
Title: Washing board
IPC: D06F1/00
Filed: 1932-07-05
Abstract: 388,985. Washing-boards. SAMERSAW, H., 16, Mogaten, Oslo, Norway. July 5, 1932, No. 18947. Convention date, Feb. 20. [Class 138 (ii).] A washing-board 1 with a concave ribbed washing surface 2 is provided with a soap receptacle 3 which is open at the top and communicates with the ribbed surface by perforations 4. The rectangular frame of the board is made of any suitable material, e.g. wood or zinc.
Patent GB-816821-A (GB)
Title: Improvements relating to textile spinning apparatus
IPC: D01H1/10
Filed: 1955-07-01
Abstract: 816,821. Textile spinning apparatus. DEERING MILLIKEN RESEARCH CORPORATION. July 1, 1955 [July 19, 1954], No. 19142/55. Class 120(2) Textile spinning apparatus comprises a drafting head, a rotatable spindle, a support member rotatably mounted on the spindle and stabilized against rotation, yarn collecting means carried by the support member and driven by the spindle, a yarn guide carried by the support member and positioned substantially on the extended axis of rotation of the spindle, and balloon driving means carried by the spindle and adapted to rotate a strand of yarn in its passage from the drafting head to the collecting means in the form of a balloon between the balloon driving means and the yarn guide and of maintaining a substantially lower mean tension in the yarn on reaching the spindle than in the balloon. In the embodiment shown a sliver or roving 14 from package 12 passes through a drawing head 18, through an axial passage in shaft 48 driven from an electric motor (not shown), out through an orifice 60, around a storage disc 62, then over the flier 63 to form a balloon. Thereafter it enters an apex assembly 132 and passes axially therethrough and thence via a pigtail guide 126 through a pair of conical feed rollers 124 and 126. The ballooning yarn tends to rotate the guide 142 of the assembly 132 in its bearings such tendency to rotation being opposed by a spiral spring 153. The resultant motion of the shaft 143 moves the guide 149 and thus varies the position of the yarn through the conical feed rollers 124 and 126 so that the rate of feed is varied depending on the tension of the yarn in the balloon. From the conical feed rollers the yarn passes via various guide pulleys to the traversing arm 174 such that it is wound on the yarn package 90 mounted on the core or mandrel 86 which is driven by gearing from the shaft 48. The platform 76 on which the various stationary parts are mounted is stabilized against rotation by eccentric weight distribution. The drafting head may be driven by gearing from the same electric motor as drives the shaft 48. In a second embodiment the traversing arm is replaced by a yarn traversing drum driving the package and a balloon restricting ring is provided. The axis of rotation of the spindle is also arranged at an angle to the path of the yarn from the drawing head and the axial path in the shaft 48 is arranged in an eccentric manner such that an intermittent drafting effect is produced on the strand between the drawing head and the spinning spindle. Specifications 773,891, 811,001, 811,002, 816,822 and 816,823 are referred to.
Patent GB-1122428-A (GB)
Title: Improvements in or relating to ladders
Inventor: LIEBLEIN GEORGE
IPC: E06C7/08
Filed: 1965-05-06
Abstract: 1,122,428. Ladders. PRECISION LIGHTWEIGHT ENG. Ltd. 2 May, 1966 [6 May, 1965], No. 19221/65. Heading A6L. A ladder rung has a circumferential rib 5 or 7 or both engaging ridges 2 on the stiles 1 to prevent rotation of the rung. The end of the rung. is engaged in a hole in a stile until the rib 5 engages the stile and the end 6 of the rung is then turned over to form the securing rib 7.
Patent GB-624966-A (GB)
Title: Improved method of and apparatus for dehydrating small containers as use in refrigeration systems
IPC: F25B45/00
Filed: 1947-07-18
Abstract: 624,966. Refrigerating; drying containers. GENERAL MOTORS CORPORATION. July 18, 1947, No. 19246. Convention date, July 24, 1946. [Classes 29, 34(ii), 64(i) and 64(ii)] [Also in Group XXVIII] Metal containers such as the bellows 20 and capillary tube 22 of the thermostatic control of a refrigerating system are dehydrated before fitting into the system by heating the container in the vapour of a volatile liquid 52 while alternately evacuating the container and charging it with dry gas. The container is supported upon a member 24 hinged at 26 to the side of an insulated vessel 28 containing tetrachloroethylene heated by an electric heater 54. The member 24 is raised on its hinge, the capillary tube 22 connected to a coupling 32 and then lowered into the vessel 28 so that the container is heated by the vapours of the liquid. A valve 36 is then manipulated to connect the container alternately to a vacuum vessel 38 and a source 40 of dry gas, such as air or nitrogen. After several minutes the container is removed and replaced by another to be dried. The coupling 32 comprises a sealing grommet forced on the tube 22 by air pressure under the control of a valve 50. To prevent escape of vapours from the vessel 28 water cooling pipes 56 are provided around its mouth to condense the vapours.
Patent GB-890838-A (GB)
Title: Magnetic sound recording and/or playback apparatus
IPC: G11B5/52
Filed: 1958-06-16
Abstract: 890,838. Magnetic recording &c. apparatus. TOKYO DENKI KAGAKU KOGYO KABUSHIKI KAISHA, and HOSHINO, Y. June 16, 1958 [June 17, 1957; July 1, 1957; Oct. 18, 1957], No. 19251/58. Class 40 (2). In a magnetic recording and reproducing machine which uses sheet records as described in Specifications 811,160, 815,147 and 833,266, substantially in the manner of Specification 850,291, a quick rewind means for the turntable is provided. In one embodiment, Fig. 2, the table 7 is advanced in the direction 5 by a motor 8 driving a geared nut 22 along a normally stationary leadscrew 24 which can be driven at high speed by a motor 28 to rewind the table. In the embodiments of Figs. 5 and 6, two alternative forms of change-speed gearing drive the leadscrew to give a slow advance and a quick rewind. In the embodiment of Figs. 9 and 10, the table is translated by gearing to a pinion 102 engaging a rack 103, a lever 104, when pressed to the right, disengaging the dogclutch 106, 107, freeing the table to be moved back by the lever. A solenoid 29 and chain 30 cause a roller 11 to engage one of three notches D during rewind so that when restarting a head is suitably aligned with the track. Limit switches 63, 63<SP>1</SP> cause the table to make a final slow approach to and stop at the restarting position.
Patent GB-425302-A (GB)
Title: Improvements in or relating to the manufacture of water soluble mixed quinone azodyestuffs
IPC: C09B56/12
Filed: 1933-07-07
Abstract: Water soluble mixed quinone azo dyes are made by condensing azo dyes which contain at least one free or monoalkylated amino group with quinones.  Alternatively, dyestuff intermediates containing one coupling position and at least one free amino group are condensed with quinones and the products coupled with diazo compounds.  The quinones may also be condensed on the one hand with an amine having no dyestuff character and on the other hand with an aminoazo dyestuff or intermediate product or on the one hand with an aminoazodyestuff and on the other with an intermediate or a different azo dyestuff. The condensation may be carried out in the dyebath or in a two-bath process on to the fibre whereby dyeings fast to washing are obtained. The products have increased affinity for cellulose fibres and are fast to alkalies and acids.  Halochrome effects associated with salt formation do not arise and the colour intensity of the amino azo dyestuffs is increased.  Suitable quinones are benzoquinones, stilbenequinones and quinoneazines.  An oxidizing agent may be added to the condensation or a hydroquinone plus an oxidizing agent may be used.  In examples: (1) wool is dyed with the dyestuff aniline --> 1 : 6 or 1 : 7-naphthylaminesulphonic acid and benzoquinone is added to the nearly exhausted bath or the dyed material is treated in a fresh bath; the dyeing is faster to acids and alkali; the coupling component may be replaced by the corresponding 1-methylaminonaphthalene sulphonic acids; (2) the dyestuff p-aminobenzeneazo-2 : 6-naphtholsulphonic acid is condensed with benzoquinone (grey violet on cotton); (3) cotton is dyed with the dyestuff benzidine \sQ (alkaline) H acid and after a short time benzoquinone is added to the bath and the dyeing continued; (4) the dyestuff of (3) is made in substance; (5) J acid (2 mols.) is condensed with chloranil (1 mol.) and the product coupled with diazotized aniline.  The Specification as open to inspection under Sect. 91 states broadly that mixed quinone dyestuffs are made by condensing dyestuffs containing amino or monoalkyl-or aralkylamino groups with quinones or by condensing dyestuff intermediates with quinones and subsequently forming the dyestuffs.  Starting materials specified are amino dyestuffs of all kinds, e.g. azine, oxazine, thiazine, acridine, triphenylmethane, xanthone and anthraquinones. Additional quinones specified are trichlorobenzoquinone and anilinobenzoquinone.  In example (5) above, 2 : 8 : 6-acid and H acid are also specified.  This subject-matter does not appear in the Specification as accepted.
Patent GB-298298-A (GB)
Title: Improvements in and relating to picture rails and the like
IPC: A47G1/16
Filed: 1927-07-22
Abstract: 298,298. Richmond, T. G. July 22, 1927. Pictures, hanging on walls.-Sheet metal picture rails are formed with a substantially flat profile so that they will not collect dusd and may be secured by screw nails, and the lower edge c is curved inwardly and slightly upwardly to support hooks e. The upper part b is either flat, Fig. 2, or corrugated, Fig. 6, or consists of a separate corrugated strip f<2>, Fig. 4. Electric cables g may be housed behind the corugations, and the upper edge of the rail may extend outwards along the ceiling.
Patent GB-577383-A (GB)
Title: Improvements in or relating to alarm controls for alarm clocks
IPC: G04B23/03
Filed: 1943-11-22
Abstract: 577,383. Alarm clocks. SMITH & SONS (ENGLAND), Ltd., S. (formerly SMITH & SONS (MOTOR ACCESSORIES), Ltd., S.), and MOSS, E. B. Nov. 22, 1943, No. 19487. [Class 139] An alarm control comprises a control member so arranged as to be movable successively and bodily in two directions transverse to one another so that a movement in the first direction temporarily locks the alarm out of operation and movement in the two directions permanently locks the alarm out of operation. The control member comprises a lever 20, Fig. 1, provided with a downwardly directed hook portion 21 extending through an aperture 14 in the casing 10. One end of the member 20 is in the form of a fork having arms 23, 24 which embrace a pivot pin 16. When the hooked end of said lever 20, which is normally urged upwards by a spring 25, is pressed down, the alarm operating lever 19 is pressed into the " inoperative " position. To hold the lever 19 in this position, the lever 20 is moved transversely till the lip 22 engages the underside of the bracket 13. In a modification, Fig. 3, the control member is in the form of a push-button 27 arranged to extend through a slot 28 in the casing 29. The member 27 has arms 30, 31 which engage the underside of the casing 29 and is normally urged upwards by a spring 36. Shoulders 33, 34 are provided in the casing 29 so that the member 27 may be held in the downward position, i.e. the permanently inoperative position. The upper faces of the arms 30, 31 may be marked " on " and " off " in such a position that the pertinent one of them only is viewed through an aperture in the casing.
Patent GB-1347994-A (GB)
Title: Sound recording and reproduction
IPC: H04S3/02
Filed: 1971-06-08
Abstract: 1347994 Four channel stereophonic systems COLUMBIA BROADCASTING SYSTEM Inc 8 June 1971 [8 June 1970] 19488/71 Heading H4R In an apparatus for deriving from first and second composite signals four signals for reproducing on four loud-speakers, four separate channels of programme information, and in which each composite signal contains component signals representing respective ones of two of the channels together with, in each composite signal, in-phase portions of a third channel and phase-displaced portions of a fourth channel, the composite signals are appropriately combined to derive a first set of signals each containing a major portion of the signal in respective ones of the four channels of information, together with signals in the two adjacent ones of the four channels of information. The four signals are fed to the reproducing circuits via amplifiers whose gain is controlled by a circuit which determines which channel contains the predominant signal and increases the gain of the amplifier in the corresponding channel relative the gains of the amplifiers in the other channels. The four channels can be controlled independently or controlled in pairs, each pair comprising the channels feeding opposed signals. Fig. 7 shows one embodiment in which the two composite signals from amplifiers 40 and 42 are fed directly to respective gain controlled amplifiers 96 and 102 to provide signals for the left L and right R speakers while the sum and difference of the two composite signals are fed to respective gain controlled amplifiers 98 and 100 to provide signals for the front C and back D loud-speakers. The composite signals are also fed via equalizers 59 and 61, having inverse equal loudness characteristics, to gain controlled amplifiers 58 and 60 the output from which are fed to a matrix circuit to derive the four output channels. The signals in the four channels are rectified by rectifiers 68 to 74 to derive control signals for the gain controlled amplifiers 96, 98, 100, 102 in the main channels. The four control signals are also combined on -resistor 84 to provide a control signal for the gain of amplifiers 58 and 60 which tend to stabilize the combined signal on resistor 84 so that the individual signals, e l , e c , e d , e r  are held to a specific rate. Each control signal has a bias 104, 106, 108, 110 added to it and the arrangement is such that a signal present in the right channel R tends to cut off the amplifier handling the left L signal and vice versa, and a signal in the C channel cuts off the amplifier handling the D signal, and vice versa. In one alternative arrangement, Fig. 9 (not shown), the four gain control signals are applied to each gain control amplifier via weighting networks, which weight control in favour of the signal level in the diagonally opposed channel, while in a second alternative system, Fig. 11 (not shown), the signal level in the left and right channels is compared with that in the front and rear channels and the gains of those pairs of channels controlled inversely.
Patent GB-974137-A (GB)
Title: New isoquinolines and process for their manufacture
IPC: C07D401/06
Filed: 1962-05-21
Abstract: The invention comprises 1-(pyridyl-lower alkyl)-7-R1-6-R2-4-R3-3, 4-dihydroisoquinolines containing a 2-methyl group or a 1, 2-double bond, the lower alkyl group containing 2 to 4 carbon atoms and separating the pyridine ring from the isoquinoline ring by at least 2 carbon atoms, in which the pyridyl group may be substituted by an alkyl, alkoxy or phenyl group, and in which R1 and R2 are each hydroxy, lower alkoxy or phenyl-lower alkoxy or R1 and R2 together are lower alkylenedioxy and R3 is hydrogen or lower alkyl, the word "lower" meaning an upper limit of 5 carbon atoms; and their acid-addition salts and quaternary ammonium derivatives; and their preparation by cyclizing an N-(pyridyl-lower alkyl-carbonyl) -2-(p-R1-m-R2-phenyl)-2-R3-ethylamine and, if desired, reducing the 1-pyridyl-lower-alkyl-7-R1-6-R2-4-R3-3, 4-dihydroisoquinoline so-formed to give the corresponding 1, 2, 3, 4-tetrahydroisoquinoline and methylating this.  Racemic products can be resolved.  Examples are given and extensive lists of salt-forming acids and quaternizing agents are provided.  N-3-(4-pyridyl)-propionyl-N-[2-(3, 4-dimethoxyphenyl) -ethyl]-amine is prepared by refluxing 2-(3, 4-dimethoxy-phenyl)-ethylamine with ethyl 3-(4-pyridyl)-propionate. The corresponding 3-pyridyl compound is prepared similarly.  The isoquinolines of the invention, which are stated to be analgetic agents, may be made up into pharmaceutical compositions with suitable carriers.  These may take the form of capsules, tablets, dragees, solutions, suspensions or emulsions, and may contain preserving, stabilizing, wetting or emulsifying agents, salts for varying the osmotic pressure, or buffers.
Patent GB-531556-A (GB)
Title: Improved arrangements for suppressing the carrier frequency on transmission systems
IPC: H04B3/20
Filed: 1939-07-05
Abstract: 531,556. Wireless transmitting systems. STANDARD TELEPHONES & CABLES, Ltd., MEERS, R. A., PROBERT, G. O., and RATTUE, E. A. July 5, 1939, No. 19568. [Class 40 (v)] In a carrier wave telephone or telegraph transmission system having means for transmitting the carrier frequency only during the transmission of signals D.C. voltages derived from the signal currents are arranged to remove a blocking potential on a grid of a valve in the carrier path. Speech currents applied to transformer T<SP>1</SP> are rectified by a double diode V<SP>1</SP> to produce a voltage across resistance R<SP>1</SP>, which voltage applied to grid G<SP>21</SP> serves to block valve V<SP>2</SP>. This causes the anode potential to rise so as to remove a blocking bias from valve V<SP>3</SP> which thus serves to partially short circuit resistance R<SP>11</SP> and hence to reduce the positive bias of cathode of valve V4 due to voltage drop across R<SP>10</SP>, R<SP>11</SP>. This valve V4 in the carrier path becomes conductive and the carrier frequency is transmitted. A condenser C<SP>1</SP> gives a hangover time sufficient to cover intersyllabic pauses. For telegraphic working keying is effected across A, B, the positive potential for marking being applied at B.