baber/WOPTO huggingface dataset:
Patent GB-237188-A (GB)
Title: Improvements in electric motors
IPC: H02K23/66
Filed: 1924-08-01
Abstract: 237,188. Fairweather, W. C., (Underwood Typewriter Co.). Aug. 1, 1924. Motors, controlling; exciting; field magnets; commutating poles; alternating-current commutator machines.-A motor convertible for use with continuous or with alternating current of different voltages or frequencies comprises a number of field coils 49 - - 52 and auxiliary coils 66 - - 73 on a core 58, the auxiliary coils being in series with the armature and arranged, when used with alternating current, to oppose, the field coils and thereby limit the speed of the motor, and a reluctance is placed in the magnetic circuit around the auxiliary coils by the provision of air gaps between the core 58 and iron loops 75 through which the flux is directed, as shown in Fig. 3, or by placing copper bands 125, Fig. 18, on the loops. The loops 75 are secured by straps 80 and are spaced from the main core by wood blocks 78, replaceable by others of different thickness. The main core is formed of quadrants, each end of which forms one-half of either a main pole 53 extending nearly around the armature, or of a commutating pole 65 the two parts of which are secured together by copper clips 64 enclosing laminated iron 64<a>. All the coils are wound separately and are threaded on the quadrants of the core, and the ends of each coil are brought out to a terminal board 83, Fig. 2, where the coils, the armature, and resistances in series with the armature may be connected in various ways to adapt the motor by fixing interchangeable and removable contact panels 96 to the terminal board. The contacts 93 on the different panels are connected together in various ways by wires 95, and the panels are secured with a cover 86 by screws 99. Fig. 7 shows diagrammatically the connection of the terminals to the coils, the armature 41, and resistances 102 - - 105 in series with the armature, the number of resistances cut in being suited to the voltage. The connections shown in Fig. 7 provide for low-voltage continuous current, all the resistances being cut out, and the field coils 49 - - 52 being arranged in semi-parallel, and the auxiliary coils 66 - - 73 arranged similarly. For continuous and alternating current, the auxiliary coils are arranged to assist and to oppose the field coils respectively. Several diagrams are given showing the connections for adapting the motor to different conditions.
Patent GB-722199-A (GB)
Title: Building elements
IPC: E04B2/36
Filed: 1952-03-12
Abstract: 722,199. Building blocks; walls; floors. DRICOT, J. March 12, 1952 [March 15, 1951], No. 6461/52. Classes 20 (4) and 87 (1).  In a building block 12 in the form of a right pentagonal prism, two adjacent angles 13, 14 are right angles, the angles next to them are obtuse, and the sides between these latter are provided with grooves 15 of semi-circular crosssection. A slot 16 may be provided to receive mortar or to facilitate breaking of the block into halves. In the formation of a wall or floor, the blocks 12 are oppositely arranged. For the formation of jambs, jamb blocks 19, Fig. 4, and accessory blocks 18, Fig. 3, are employed.
Patent GB-276896-A (GB)
Title: Improvements in machines for compressing and moulding materials
IPC: B30B3/04
Filed: 1926-04-26
Abstract: 276,896. Dryden, W., and Dunlop, H. J. L. April 26, 1926. Rolling-machines.-Relates to machines of the type wherein material is compressed within mould cavities formed in a pair of coacting, disclike members arranged at a slight angle and consists in mounting one of the members upon a fixed hollow bearing through which the shaft carrying the other member passes. As shown, one member A<1> is supported by roller and thrust bearings a<11>, a<12> upon a hollow standard K through which passes the shaft b<11> carrying the other member B<1>, the shaft b<11> being supported by a thrust bearing b<15>. The space between the discs is adjustable by a nut b<19>. Mould cavities v are formed in the faces of the discs. The material is fed to the space between the discs from a hopper H. Escape of material is prevented by interengaging spherical surfaces a<8>, b<8>, a<10>, b<10>. The disc B<1> is interchangeable, being formed of two diametral portions having flanges b<22> engaging a recess b<21> in a boss b<12> and secured together by bolts passing through ears b<24>. Material forced into the space S escapes through a duct T. The disc A<1> is driven frictionally by the material, or it may be driven positively through chain and worm gear w<3>, w<2>. A modification is described in which the discs are driven through spur gearing. Specification 269,612 is referred to.
Patent GB-341325-A (GB)
Title: Electric induction furnaces
IPC: H05B6/24
Filed: 1930-02-27
Abstract: 341,325. Electric induction furnaces. ELECTRIC FURNACE CO., Ltd., 17, Victoria Street, London.-(Assignees of Hirsch, Kupfer-und Messingwerke Akt.-Ges. ; Messingwerk, near Eberswalde, Germany.) Feb. 27, 1930, No. 6567. Convention date, Feb. 27, 1929. [Class 39 (iii).] The plane of winding of the coil 4 is inclined to the axis of the coil. The lengths of the secondary paths are thereby increased. The bottom 8 of the crucible 1 is parallel to the plane of winding. The combined effect is said to reduce splashing at the centre of the crucible and to produce an inclined surface 9 of the charge. Insulated annular segments 6, 7 of sheet iron are provided at the top and bottom of the coil to prevent stray fields. In a modifical the plane of winding is partly inclined and partly perpendicular to the coil axis. In another modification the plane is inclined downwards from the centre to the sides.
Patent GB-363560-A (GB)
Title: A cooling device for fuel injection valves of internal combustion engines
IPC: F02M53/04
Filed: 1931-03-03
Abstract: 363,560. Fuel injectors. SWISS LOCOMOTIVE & MACHINE WORKS, Winterthur, Switzerland. March 3, 1931, No. 6579. Convention date, March 27, 1930. [Class 7 (iii).] The body 2 of a liquid fuel injector is mounted within a sleeve 3 having at its inner end a chamber 7 to which a cooling medium is supplied direct by a pipe 8, the cooling fluid being discharged from the chamber 7 into the cooling chamber of the cylinder head. The inner wall of the cooling chamber 7 is formed by a tubular nut 9 which may closely surround the lower portion of the injector body to ensure a good transferent of heat. The construction is such that the injector may be removed complete from the sleeve 7 without disturbing the cooling arrangement. The pipe 8 may enter the sleeve 7 tangentially or radially ; when the cooling medium is admitted tangentially the discharge. orifice is located near the inlet.
Patent GB-1530095-A (GB)
Title: Battery operated hand lamp
IPC: F21L4/00
Filed: 1977-02-17
Abstract: 1530095 Electric battery lamps CELAYA EMPARANZA Y GALDOS SA 17 Feb 1977 06604/77 Heading F4R [Also in Division H1] A torch comprises a hollow body and a head snap-fitted together to form a battery casing, the head including a bulb carrier, a parabolic reflector, a diffuser and a switch. The switch includes two metal contact plates one of which has a resiliently displaceable pressed-out tongue engageable by an operating switch slider to move it into engagement with the other plate.
Patent GB-622067-A (GB)
Title: Improvements in or relating to cutting mechanism for ice cream butter, cake and other materials of a similar nature
IPC: B26D1/09
Filed: 1947-03-10
Abstract: 622,067. Food - cutting mechanism. GIUSTI, T., GIUSTI, R. B., and GIUSTI & SON, Ltd., T. March 10, 1947, No. 6622. [Class 5(i)] Food - blocks are cut by a reciprocating vertical transverse knife A and by longitudinal knives D, Dx disposed in front of and behind the knife A, and in staggered relation with each other. The knives D, Dx may be secured to the knife A or mounted on supports carried by the sliding blocks to which the knives A are attached. Scraper means may be mounted on the transverse knife.
Patent GB-1443408-A (GB)
Title: Process for producing ethylphenols and acetaldehyde
IPC: C07C37/86
Filed: 1975-02-17
Abstract: 1443408 Ethylphenol LABOFINA SA 17 Feb 1975 [21 Feb 1974] 6647/75 Addition to 1432680 Heading C2C In a process for producing ethylphenols and acetaldehyde which comprises: reacting in liquid phase, diethylbenzene with a molecular oxygen containing gas, at a temperature between 100‹ and 180‹ C., until 5 to 30% of the diethylbenzene feed is converted into diethylbenzene hydroperoxide; withdrawing the reaction mixture, evaporating the unconverted diethylbenzene therefrom to obtain a concentrate containing at least 40% of diethylbenzene hydroperoxide, and recycling the unconverted diethylbenzene to the oxidation stage; mixing the diethylbenzene hydroperoxide concentrate with a solvent chosen from low molecular weight aliphatic alcohols, ketones and mixtures thereof having up to 4 carbon atoms; decomposing said hydroperoxide by intimate contact with an acid chosen from sulphuric acid, phosphoric acid, sulphonic acids, Lewis acids and in exchange resins which is used in an amount of between 0À05 and 5% of the weight of total reaction mixture; neutralizing the resulting mixture and thereafter distilling the neutralized mixture to recover a bottom fraction containing ethylphenol and an overhead fraction containing acetaldehyde, the ethylphenol obtained is treated with a known ketones reactant and the mixture distilled in order to obtain ethylphenol with a high degree of purity.
Patent GB-488123-A (GB)
Title: Improvements in apparatus for opening doors and the like
IPC: E05F13/04
Filed: 1937-03-08
Abstract: 488,123. Door &c. operating-appliances. STAPLES, E. H. March 8, 1937, No. 6752. [Class 65 (i)] Apparatus for opening doors &c. comprises a plate 1 extending on both sides of the door and supported on crank-arms 11 on transverse shafts 12 carrying crank-arms 14 connected to longitudinal bars 15, 16, so that when the plate 1 is depressed, the bars 15, 16 are moved longitudinally the pull of springs 19 anchored to a fixed bar 18. The bar 17 is connected bv a rod 24 to a lever 20 pivoted at 21 and connected at its other end to a rod 25 pivoted to a lever 26 on the door spindle 27. In another form for double doors, the bars 15, 16 are connected by a transverse bar through which slide spring-pressed rods connected to bell-crank levers, pivoted at their other ends to spring thrust rods connected to levers on the door spindles. Means may be provided for automatically closing the door after being opened in a direction opposite to the normal.
Patent GB-1169112-A (GB)
Title: Metallic Tube
IPC: B65D35/12
Filed: 1967-02-14
Abstract: 1,169,112. Collapsible tubes. SUNSTAR DENTIFRICE CO. Ltd. 14 Feb., 1967 [23 Feb., 1966], No. 6891/67. Heading B8D. The upper section of a metallic tube (not shown) is secured to a metallic head portion 1 having a neck 2 of which the internal surface is polygonal enabling it to receive non-rotatably a correspondingly-shaped part 12 of a main nozzle portion 10 of plastics material, an outer nozzle portion 20 also of plastics being screwthreaded internally of its upper part 22 to engage threads on the portion 10. Below the screw-threads, on both the members 10 and 20, are formed sawteeth which interengage, when the member 20 is screwed down, and prevent relative rotation of these members. A screw cap is then fitted.
Patent GB-107781-A (GB)
Title: Improvements in and relating to a Machine for Polishing and Burnishing Precious Stones or the like.
Inventor: BARKER REGINALD WALTER
IPC: B24B9/16
Filed: 1916-05-16
Abstract: 107,781. Barker, R. W., (Heller & Sons, L.). May 16, 1916. Gems, treating.-A lapidary wheel for polish. ing and burnishing gems is mounted so that the axis of rotation can be caused to describe an orbit or to remain stationary, the two adjustments being used when polishing and burnishing respectively. As shown, the shaft 2 of the wheel 1 is mounted eccentrically in a collar 3 which is mounted eccentrically in a collar 5 provided with a set-screw 8 adapted to engage shoulders on the collar 3. The shaft 2 and the collar 5 are provided with driving- pulleys 4, 7 respectively, the shaft being preferably driven at a higher speed than the collar. According to the direction of rotation of the collar 5, the screw 8 engages the right or left shoulder on the collar 3, Fig. 4, and causes the axis of the shaft 2 to remain stationary or describe an orbit. Means such as a brake 12 is provided for retarding the collar 3 when the collar 5 is reversed.
Patent GB-1121018-A (GB)
Title: Dosage time reminder
IPC: A61J7/04
Filed: 1967-02-14
Abstract: 1,121,018. Dosage time indicator L. VISSER. 14 Feb., 1967, No. 7051/67. Heading G5C. A dosage time reminder comprises a clock face part 1 with movable hands 2 and 3 in combination with flexible attachment means in the form of an elastic band in combination with a hooked member for connecting the reminder to a container. The elastic band 11 is attached to the cardboard or like disc on which the clock face is illustrated by means of a wire hook 10 which engages under tabs 9a and 9b in the back of the disc. Advertising matter 6 may be provided on a cardboard extension 7.
Patent GB-1094452-A (GB)
Title: Improvements in or relating to propellant compositions
Inventor: ANGER VINZENZ
IPC: C06B25/32
Filed: 1965-02-18
Abstract: A percussion-ignitable deflagrating composition, for use in driving fasteners into solid materials, comprises a mixture of PETN and tetrazen, the latter being present in an amount of from 5 to 40% by weight of the PETN. Preferably the composition is made into pellets by compressing the mixture which has been granulated by adding acetone.  The composition may also be in the form of a powder or a jelly and may be provided with an inflammable coating of nitrocellulose lacquer, paraffin, gelatine, or polymeric compounds which may be nitrated.
Patent GB-1377335-A (GB)
Title: Cigarette holder with tar collecting means
IPC: A24F13/04
Filed: 1973-02-13
Abstract: 1377335 Cigarette holders; tobacco smoke filters K TERASAKI 13 Feb 1973 [2 May 1972] 7056/73 Headings A2C and A2M A cigarette holder accommodates a smoke impingement type filter cartridge; the cartridge comprising a cylindrical tube, the downstream end of which is closed except for a small opening 19, and the upstream end of which is closed by two disc-shaped members 11, 12, the first disc member 11 having at least one small opening 13 and the second disc member 12 being adapted to provide a smoke impingement surface region 14 and at least one opening 17 adjacent the region 14. The surface region 14 and openings 17 are produced by displacing that part of the disc 12 that lies between two parallel cuts 17 made in the disc 12. For Figures see next column
Patent GB-1165492-A (GB)
Title: An Apparatus for Coupling a Driving Means to a Movable Member
IPC: B41F3/46
Filed: 1968-02-13
Abstract: 1,165,492. Screw - and - nut mechanism. BUNKER-RAMO CORP. 13 Feb., 1968 [13 March, 1967], No. 7068/68. Headings F2A and F2Q. A nut 38 on a lead screw 26 is coupled to a housing 30 secured to a movable carriage 14 by gimbal means comprising a ring 42 which is rotatably mounted with respect to the nut 38 about an axis z by means of bearings 36 and is rotatably mounted with respect to housing 30 about an axis x by bearings 36<SP>1</SP>. Each bearing comprises two rows of balls located between an outer cylindrical sleeve 48, Fig. 5, and an inner cylindrical sleeve 44 mounted on a bolt 46. The balls are preloaded and are free to rotate and to move axially between retaining rings 50. In a similar manner, a carriage 18 is mounted for movement on the carriage 14 by a lead screw 20.
Patent GB-721301-A (GB)
Title: Improvements in or relating to the separation of acetic acid from aqueous mixtures of organic compounds by distillation
IPC: C07C51/487
Filed: 1952-03-19
Abstract: Acetic acid is separated from mixtures of lower fatty acids containing formic acid and water in addition to acetic acid, by adding acetic anhydride to the mixture in an amount in excess of that required to react with all the water present to form acetic acid, and simultaneously or thereafter submitting the mixture to fractional distillation whereby an acetic acid fraction, substantially free of formic acid, is obtained after formic acid has been distilled over. At the temperature at which the distillation is carried out formic acid decomposes at an appreciable rate into carbon monoxide and water; it is therefore desirable to use sufficient anhydride to react not only with the water originally present in the mixture but also with that produced by decomposition of formic acid.  Feedstocks for the process may contain ketones and esters in addition to fatty acids and water.  Thus a suitable feedstock is the crude product obtained by the partial aerial oxidation of lower hydrocarbons.ALSO:Acetic acid is separated from mixtures of lower fatty acids containing formic acid and water in addition to acetic acid, by adding acetic anhydride to the mixture in an amount in excess of that required to react with all the water present to form acetic acid, and simultaneously or thereafter submitting the mixture to fractional distillation whereby an acetic acid fraction, substantially free of formic acid, is obtained after formic acid has been distilled over. At the temperature at which the distillation is carried out formic acid decomposes at an appreciable rate into carbon monoxide and water; it is therefore desirable to use sufficient anhydride to react not only with the water originally present in the mixture but also with that produced by decomposition of formic acid.  Feedstocks for the process may contain ketones and esters in addition to fatty acids and water.  Thus a suitable feedstock is the crude product obtained by the partial aerial oxidation of lower hydrocarbons. An initial azeotropic distillation, using hexane or toluene as entrainer, will separate most of the formic acid, esters and water as an overhead fraction, leaving a bottoms fraction containing acetic and propionic acids, together with the remaining formic acid and water.  This bottoms product is then treated with excess acetic anhydride as described above.  In an example, a mixture containing acetic acid (86.8 per cent), formic acid (11.2 per cent) and water (2 per cent) was distilled in the presence of 14 per cent (based on the feed) of acetic anhydride using a column equivalent to 40 theoretical plates. Distillate was removed until the overhead temperature reached 113 DEG C., and this left a bottoms product of acetic acid containing only 0.15 per cent of formic acid.
Patent GB-1185671-A (GB)
Title: Method of Heat Treatment of Tubes or Rods and Apparatus for Application of this Method
IPC: C21D1/40
Filed: 1967-02-15
Abstract: 1,185,671. Heating metal tubes &c. by passage of current. INSTYTUT METALURGII ZELAZA IM. STANISLAWA STASZICA. 15 Feb., 1967 [15 Feb., 1966], No. 7169/67. Heading H5H. In the heat treatment of metal tubing, the tubing 1 is fed continuously through two axially spaced electrodes 5, 6 between which a voltage is applied by a transformer 11, the resulting current flow through the section of tubing between the electrodes 5, 6 raising its temperature to between 1000‹ and 1150‹ C. The tubing is subsequently water-cooled by a ring 8 having nozzles 9 preferably located before the second electrode 6 so that the latter is not subjected to high temperatures. For high efficiency the tube is surrounded, between the electrodes, by an insulating guard 7. The tubing 1 is fed by rollers 4 driven by a motor 20 which also rotates the first electrode 5, connection to this electrode being made through a liquid connection 15. Alternatively both electrodes may be stationary and the tubing rotated.
Patent GB-1374141-A (GB)
Title: Breath testing system
IPC: A61B5/18
Filed: 1972-02-16
Abstract: 1374141 Controlling vehicles BORGWARNER CORP 6 Feb 1972 [23 April 1971 (2)] 7178/72 Heading B7A [Also in Divisions A5 and G1] The alcoholic content of a man's breath is determined by causing him to blow into a chamber containing a catalytic resistor connected in a bridge network, to produce a "fail" signal when the alcohol concentration is above a predetermined level. The testing apparatus may be located by the driving seat of a car, and the "fail" signal lights a lamp on the dashboard and prevents the car from being driven. The alcohol content is measured in a chamber 70 (Fig. 4), containing similar resistors 78, 79 the former being coated with a catalyst causing alcohol to be oxidized. The consequent rise in temperature and resistance is measured in the bridge network. The system is prepared when the car door is opened and closed. When the driver starts the engine, the alternator field winding potential at 201 (Fig. 6), causes a transistor 152 to conduct and energize relay winding K9, which starts a warm-up timer unit 150. After the preset interval, relay K7 is energized, a "ready" lamp 32 lights up, relay K6 is energized and a capacitor 111 is charged to the output voltage of the bridge network, with the chamber 70 containing ambient air. The driver now blows through a flexible tube 24 into a first chamber 42. When sufficient pressure is developed a spring switch 60 closes and solenoid 58 is energized to open a port into chamber 70. The bridge now senses the alcohol concentration of the breath, and the new output voltage froms are input to a comparator 105 whose other input is the signal stored on capacitor 111. If the difference exceeds a preset value representing the maximum allowable alcohol concentration, the circuitry shown causes "fail" lamp 38 to light up and subsequent movement of the car selector lever cuts off the engine.  Breathing into tube 24 must be continuous for a period determined by timer 62 to maintain an uninterrupted closure of switch 60. If the switch contacts are allowed to reopen in this time the system is reset. Hence the alcoholic concentration test is essentially made on deep lung breath. In modifications a "fail" signal allows the car to be driven at a low speed only, with visible and audible alarms indicating that the driver has failed the alcohol concentration test. A pressure switch may be incorporated in the driver's seat to prevent a change of driver's  after a test has been satisfactorily made. The apparatus may be responsive to two alcohol levels, the upper level allowing the car to be driven but requiring that a further test be made after a predetermined interval.