baber/WOPTO huggingface dataset:
Patent GB-757101-A (GB)
Title: Improvements in or relating to the manufacture of workpieces having a polygonal head and a shank
IPC: B21K1/44
Filed: 1953-10-20
Abstract: 757,101. Making bolts. HATEBUR, F. 13. Oct. 20, 1953 [Oct. 25, 1952], No. 28867/53. Classes 83 (2) and 83 (4). Forging; extruding.-A workpiece having a polygonal head and a shank, particularly a hexagon head bolt, is made by cold working a blank cut off from round stock, comprising upsetting one end of the blank to form a preliminary polygonal head 3, Fig. 6, having a cross-section smaller than that of the desired finished head, further upsetting the head to form a tapered intermediate stage polygonal head 6, Fig. 7, and finish upsetting the head to final shape 11, Fig. 8. The operations are performed in a progressive heading machine. The initial rod is covered with lubricant, for example a phosphate layer, and is sheared into individual blanks 1, Fig. 5 (not shown), which are transferred to the first forging die 20<SP>1</SP>, Fig. 6. The head 3 is upset by a hexagon-shaped punch 191 and simultaneously a tapered end 5 is formed by an adjacent die 20<SP>11</SP> which carries an ejector 22. During its ejection the block is gripped by jaws 17 and conveyed to the second die 25<SP>1</SP>, Fig. 7, within which the end portion 9 is formed by extrusion to the thread diameter of the bolt and the head is further upset by a punch 29. The block is ejected from the die by an ejector 27 and from the punch by an ejector 28. Jaws 32 then convey the blank to the third die 331, Fig. 8, where a tapered end 12 is provided by an adjacent die 33<SP>11</SP> and the head is upset to final shape by a punch comprising an outer part 37 carrying a die 38 and an inner part 39 which also acts as an ejector for removing the blank from the die 38. An ejector 36 is provided to remove the blank from the die 33<SP>1</SP> if necessary. The portion 9 is subsequently threaded by a thread rolling operation. The workpiece may be annealed or tempered before or after the thread rolling.
Patent GB-1431758-A (GB)
Title: Visual display devices
IPC: H01J17/49
Filed: 1972-06-21
Abstract: 1431758 Matrix displays FERRANTI Ltd 18 June 1973 [21 June 1972] 28923/72 Heading G5C [Also in Division H1] Display apparatus comprises gas filled cold cathode D.C. devices each with electrodes 4, 3 in contact with the gas, an impedance 5 connected to electrode 4 and another electrode 10 capacitatively coupled by dielectric 26 to the gas space; a first array of conductors 23 connecting rows of impedances; and parallel conductor arrays connecting columns of electrodes 3 and 10 respectively. As shown the electrodes 3, 10 are formed by portions of conductors of their arrays. The gas spaces are formed by apertures 21 in plate 20 sealed by top and bottom plates 26, 24. The dielectric of plates 26 is reduced in thickness adjacent each cell. The cells are filled with Ne and tritium. In operation a sustain potential V m  is applied to electrodes 3. Initially pulses exceeding the write potential are applied to selected electrodes 3 and 4. With electrodes 10 earthed, discharges are initiated and the capacitors are charged to V m  on the reduced thickness insulation 8. The discharges are maintained by the potential on electrodes 3 and can be erased by pulses on electrodes 4 and restarted by pulses on electrodes 10 which add to the wall storage at 8. By applying alternately on and off pulses and by varying the time between them large variation in contrast can be obtained. The wall charge can be removed by gradually increasing the potential on electrodes 10 and applying pulses to electrodes 3.
Patent GB-159297-A (GB)
Title: An attachment for lathes and the like
IPC: B23Q5/00
Filed: 1919-11-21
Abstract: 159,297. Dunn, J. Nov. 21, 1919. Turning-An attachment adapted to be fitted to existing lathes to provide any desired ratio of gearing between the mandrel and the feed-shaft or to other machines to varv the traverse of the tool comprises a spindle 1, having a coned portion 2 over which is fitted a split coned sleeve 4 which, by means of a nut 10 and washer 11, may be expanded into driving engagement with the hcllow mandrel 7. The feed-shaft 18 may be driven from the spindle 1 by gears 13, 17 or by belt or by chain-and-sprocket gearing.
Patent GB-617394-A (GB)
Title: Electric lock
IPC: E05B47/06
Filed: 1946-09-30
Abstract: 617,394. Electrically operated fastenings. BRADFORD, H. Sept. 30, 1946. No. 29107. [Class 44] An electrically-operated lock has a bolt 3, rigs. 1 and 3, which is withdrawn by an electric motor 13 by means of an arm 8 mounted on the motor spindle 14, and a release bar 16 which is normally urged outwardly by a spring 22 and in this position engages the arm 8 and prevents movement of the bolt, but which when pushed back against the action of the spring releases the arm 8, which is then turned by a spring so as to move the bolt into locking position. The locking mechanism, contained in a casing 1, comprises a bolt 3 sliding on a pin 6 and provided with an opening 7 within which rotates the arm 8. Around the spindle 14 of the motor is a coil-spring 15, one end of which is secured to the spindle and the other to the frame of the motor, and which is arranged to be tensioned as the motor rotates'to retract the bolt. so that on the breaking of the motor circuit the bolt is projected. The release bar 16 is guided on pins 6 and 18, and has a projection 21 which can engage the arm 8, and is biased to projected position by a spring 22. The motor circuit is completed through contacts 27, 28 when the release bar is in retracted position. The striking plate 30, Fig. 5, has an opening 32 to receive the bolt, and a ramp 33 which forces the release bar inwardly as the door is closed. In the locked position of Fig. 1, closing of the motor circuit, which may be effected by means of an ordinary switch, or a time or code switch,rotates the arm 8 to withdraw the bolt and tension the spring 15. The door can then be opened. On this, the release bar is projected by the spring 22, and projection 21 engages arm 8, preventing projection of the bolt by spring 15, and the motor circuit is broken. If the door is now shut (a) with the main switch still closed, the motor is energised through contacts 27, 28 and arm 8 is still held in position to withdraw the bolt, or (b) with the main switch open, the bar 16 being pushed inwardly releases arm 8 which is then turned by spring 15 so as to shoot the bolt.
Patent GB-634352-A (GB)
Title: Oil dilution and primer system for internal combustion engines
IPC: F01M5/04
Filed: 1947-10-31
Abstract: 634,352. Lubricating. BENDIX AVIATION CORPORATION. Oct. 31, 1947, No. 29148. Convention date, April 19, 1946. [Class 12 (iii)] [Also in Group XXVII] To facilitate starting, fuel from the engine fuel supply system 16 is fed by a pipe 75 to a device X containing valves 36, 54, Fig. 2, which can be operated separately to supply respectively fuel through a pipe 78 to dilute the lubricating oil supply, or priming fuel through a passage 80. When a switch 67 is moved to connect a contact 66, a coil 44 is energized, causing an armature 42 to move to the right so that a flange 52 thereon contacts the head 41 of a plunger 38 and opens the valve 36 for diluting the oil, the valve 54 being held closed by a spring 56. When the switch 67 is moved to the contact 65, a coil 45 is energized and armature 42 moves to the left so that the flange 52 moves a sleeve 52<SP>1</SP> which opens the valve 54 to allow the priming fuel to flow to a nozzle 81 in the supercharger manifold 14. When the switch 67 is in its mid-position, both valves remain closed. The oil supply system comprises a tank 20 feeding a pump 23 supplying the oil under pressure to the engine, and a scavenger pump 25 returning it to the tank 20 through a cooler 26. The valves 36, 54 are provided with moulded synthetic rubber seating members, and the clearance spaces at the ends of the armature 42, which moves in a fluid such as air or oil, are connected through a restriction 83 which provides a dashpot action.
Patent GB-243713-A (GB)
Title: A measuring device for average velocity
IPC: G01P11/00
Filed: 1925-11-19
Abstract: 243,713. R³hling, W. Nov. 27, 1924, [Convention date]. Average speed, @measuring directly. - Relates to apparatus of the type comprising logarithmic cams set by time and distance driven geartrains. The clockmechanism mounted in the casing 2 positions a pointer 10 through gearing comprising a pinion 3, a rack 4, a spring- pulled logarithmic cam 6, and gears 8, 9. The casing 2 is revolubly mounted in a bearing 11 and is positioned by a distance-driven shaft 16, a. rack 14, and a spring- influenced logarithmic cam 12. The displacemenb of the pointer 10 on the scale 17 will represent the difference of the logarithms, and will indicate average speed. The relative arrangement may be reversed, and a constant speed electric motor may be used in place of a clock.
Patent GB-680325-A (GB)
Title: Improvements in or relating to the production of phosphate coatings on ferrous surfaces
IPC: H01F1/16
Filed: 1948-11-10
Abstract: Ferrous metal surfaces are treated with a composition comprising 100 parts by weight of orthophosphoric acid, 5-55 parts by weight of a silica hydrogel composed of particles substantially all of which are 1-20 microns in diameter, and 7-15 parts by weight of water for each part of silica, the maximum water content not exceeding 600 parts by weight, the composition being applied to provide 0.5lbs. of silica for each 300 sq. ft. of surface; the surfaces are subsequently heated at 300-950 DEG C to drive off water and cause reaction with the ferrous metal.  A silica hydrosol, formed by mixing sodium silicate having a SiO2 : Na2O ratio of 3-3.5 with an equimolecular proportion or slight excess of sulphuric acid, is allowed to age, the hydrogel formed being broken up, washed and passed through a colloid or ball mill with additional water; 0.001 per cent of ammonia may be added as a stabilizer.  Specifications 560,667, [Group XXXVI], and 639,844 are referred to.ALSO:Ferrous metal surfaces are treated with a composition comprising 100 parts by weight of orthophosphoric acid, 5-55 parts by weight of a silica hydrogel composed of microns in diameter, and 7-15 parts by particles substantially all of which are 1-20 weight of water for each part of silica, the maximum water content not exceeding 600 parts by weight, the composition being applied to provide 0.5-5 lbs. of silica for each 300 sq. ft. of surface; the surfaces are subsequently heated at 300-900 DEG  C to drive off water and to cause reaction with the ferrous metal. Specifications 560,667, [Group XXXVI], and 639,844 are referred to.
Patent GB-1431238-A (GB)
Title: Microbicidal agents and their use
IPC: A61K31/045
Filed: 1974-07-02
Abstract: 1431238 Substituted benzyl alcohols BAYER AG 2 July 1974 [3 July 1973] 29245/74 Heading C2C [Also in Division A5] Benzyl alcohols of the general formula in which R<SP>1</SP> is a hydrogen, fluorine, chlorine, bromine, trifluoromethyl, trifluoromethoxy or trifluoromethylthio radical; and R<SP>2</SP> is a fluorine, chlorine, bromine, trifluoromethyl, trifluoromethoxy or trifluoromethylthio radical are prepared (a) from the corresponding benzaldehydes by catalytic reduction, (b) from the corresponding carboxylic acids by reduction with LiAlH 4  or (c) from the corresponding carboxylic acid halides by reduction with NaBH 4 . Exemplified are the preparation of 2,4- difluorobenzyl alcohol, 3-ohloro-4-trifluoromethoxy benzyl alcohol, 2-fluoro-4-chloro benzyl alcohol, 2-fluoro-6-chloro benzyl alcohol, 2- trifluoromethyl benzyl alcohol, 2-chloro-4-trifluoromethyl benzyl alcohol and 4-trifluoromethylthio benzyl alcohol.
Patent GB-1370703-A (GB)
Title: Coordinate measuring machine
IPC: G01B5/00
Filed: 1972-06-22
Abstract: 1370703 Gauging BENDIX CORP 22 June 1972 [30 June 1971] 29286/72 Heading G1M [Also in Division G4] A machine for measuring distance along a path comprises a carriage 12 carrying a probe 10 and movable along said path, a vibrator 32 for vibrating the carriage in the direction of movement and a displacement encoder comprising reading head 20 and scale 22, generating signals which are processed by averaging circuitry to give a steady reading of the displacement. The carriage is supported on beam 14 and rolls along track 16 on rollers 18 attached to the carriage. The arrangement prevents sticking of the carriage and helps to maintain the probe perpendicular to the direction of motion of the carriage.
Patent GB-638936-A (GB)
Title: Improvements in gearing applicable to gear pumps
IPC: G05G1/00
Filed: 1947-11-03
Abstract: 638,936. Gearing. SOC. INDUSTRIELLE GENERALE DE MECANIQUE APPLIQUEE (S.I.G.M.A.). Nov. 3, 1947, No. 29303. Convention date, Nov. 12, 1946. [Class 80 (i)] [Also in Group XXVI] Gearing, applicable to a gear pump for fluid such as viscose, comprises a pair of pinions 2, 3, of which the pinion 3 is mounted on a portion 10<2> of a pin 10 which is eccentric to a portion 101 carried in an end plate 6. The relative positions of the pinions 2, 3 can be varied by turning the pin 10 in the plate 6 and locking it in its adjusted position as by a nut 11 and locking washer 12. The pinions 2, 3 are located in holes in a central plate 1. The plates 1, 6, a second end plate 7, with or without intermediate plates 4. 5 are clamped together by bolts 8 which pass through clearance holes in the plate 1. As shown, the pinion 2 is fixed to a sleeve 27 driven by a shaft 28 and mounted on a fixed pin 9 in the plate 6. Alternatively, the pinion 2 may be keyed to a driving shaft directly journalled in the plate 6.
Patent GB-507877-A (GB)
Title: Device for attaching hub covers to vehicle wheels
IPC: B60B7/06
Filed: 1938-10-10
Abstract: 507,877. Vehicle wheels. FERGAT SOC. ANON. Oct. 10, 1938, Nos. 29305, 29306, and 29307. Convention dates, Oct. 9, 1937, Aug. 23, 1938, and Sept. 27, 1938. [Class 144 (i)] A hub-cap is formed with a beaded edge, to engage projections on the wheel centre, in the form of an outwardly-open channel which is reinforced by folding back the extreme edge portion. In the form shown in Fig. 3, the cap 3 is formed with a channel bead 4a, with reinforced edge 4<1>a, to engage projections 2 struck-up from the wheel disc 1. Fig. 4 shows a modification in which the channel bead 10 is formed separately from the cap 7 and secured by seaming over the edge 8 of the latter. The ring 10 and cap 7 may be formed of dissimilar materials. In the modification shown in Fig. 5, the bead 18 of the cap 17 is adapted to engage projections 16 pressed up from a ring 15 secured to the wheel disc 12.
Patent GB-289419-A (GB)
Title: Improvements in or connected with talking motion picture films
IPC: G03B31/00
Filed: 1927-11-03
Abstract: 289,419. De Forest Phonofilms, Ltd., (Assignees of Forest, L. de). April 27, 1927, [Convention date]. Drawings to Specification. Records, combined phonographic and kinematographic.-A combined sound and picture record is printed as a positive film from a negative film carrying both the sound record and the pictures by running the negative through a printing machine in conjunction with the positive blank, exposing the positive to the picture portion only ot the negative at this stage, and then running both films through a second time, this time exposing the positive only to the sound record portion of the negative. By adjusting the relative position of the positive and negative films prior to the second printing operation, any desired longitudinal separation between associated parts of the sound and picture records may thus be obtained on the positive film. Instead of printing the pictures first, and then the sound record, this sequence may be reversed. Specifications 235,178 and 235,179 are referred to.
Patent GB-1455763-A (GB)
IPC: G01K7/24
Filed: 1974-07-03
Abstract: 1455763 Automatic temperature control RCA CORPORATION 3 July 1974 [9 July 1973] 29451/74 Heading G3R [ Also in Division H3] In a temperature control system the output of a differential amplifier is fed back to a gain controlling terminal of the amplifier whereby the circuit oscillates if a differential input derived from a sensor has one polarity but not if the other. As shown the feedback is effected through a transformer 24, the circuit changing state each time the amplifier saturates. The feedback is positive for one polarity of the difference signal at terminals 12 and 14 and negative for the other. The feedback could alternatively be effected via a capacitor the circuit changing state when the capacitor becomes fully charged Fig. 4, (not shown). The amplifier could be of the type in which the differential signals and the gain control signals modulate the width and height of pulses, which are subsequently averaged to produce an output signal. The oscillator receives the differential input from a temperature sensing bridge comprising a sensor which may be a resistor, a thermistor or a diode and the load, which may be a fan, a coolant pump or a heater, is connected in feedback relation to the sensor. When the temperature unbalances the bridge in one direction the amplifier oscillates and output pulses allow a triac to conduct A.C. current to the load.
Patent GB-775839-A (GB)
Title: Improved means for securing stays, bars and other parts, to plastic panels and to other plastic articles
Inventor: BROOKES THOMAS JAMES WALTER
IPC: A47B5/00
Filed: 1954-10-14
Abstract: 775,839. Furniture joints; bracket tables ; handles. BREXTON, Ltd. Oct. 3, 1955 [Oct. 14, 1954], No. 29574/54. Classes 52 (1), 52 (2), and 52 (5). Brackets or other parts are secured to a moulded plastic article 1 by insertion into channels 8, formed on or in the article, and having grooves or lips to retain a keeper plate 11 slid or sprung into place to overlie and secure the attached part 6. The attaching means can be used to secure the legs to a table top or the brackets to a car-table, or to mount a drop handle, the keeper plate being preferably of resilient material to permit the parts to turn against friction for folding.
Patent GB-444946-A (GB)
Title: Improvements in or relating to screw presses
IPC: B30B1/22
Filed: 1935-10-26
Abstract: 444,946. Forging metals. WALTERS, B., and DOBSON, W. M., 57, Bailey Street, Sheffield. Oct. 26, 1935, No. 29589. [Class 83 (iv)] [See also Groups V and XXIV] A screw press is reciprocated by rotating discs 1, 2 which are provided on their inner faces with projecting surfaces 8, 9 which engage alternately with a wheel 6 carried by the screw 7 and thus reverse the direction of rotation of the wheel during each revolution of the discs 1,2. The surface 8 that produces the downward movement of the screw 7 covers half or less of the area of the disc 1 and the surface 9 is of less area than the surface 8. When the tool 18 makes contact with the work 19 the surface 8 slips over the wheel 6 until it becomes disengaged therefrom. The surface 9 then makes contact with the wheel 6 and raises the tool. The edges 16 of the surfaces are bevelled and the surface 9 is adjustably secured to the disc 2 by bolts and slots.
Patent GB-870448-A (GB)
Title: Improvements in or relating to vehicle lifts
IPC: B66F7/18
Filed: 1956-09-27
Abstract: 870,448. Garage lifts. SANDHAGEN, E. B. Sept. 27, 1957 [Sept. 27, 1956], No. 29611/56. Class 78 (3). The lifting ram 11 of a garage lift carries a plate 16 which loosely engages slots 17 in a pair of vehicle supporting beams 13, 14 which can slide angularly, longitudinally or transversely on the plate to selected positions under a vehicle to be raised. In a modification (Fig. 2, not shown), the slots are replaced by L-shaped members secured to the lower sides of the beams. In a further modification (Fig. 3) the beams are slidable in a box-section member 12, the lower plate of which is provided with holes which co-operate with spring-loaded pins 23 on the beams to lock the beams in their adjusted positions. The plate or box-section member can be supported by two or more lifting rams.
Patent GB-1006806-A (GB)
Title: Air compressor governor
Inventor: SHINWELL RODNEY HAYDN
IPC: F04B49/24
Filed: 1963-07-26
Abstract: 1,006,806. Unloading air compressors. FORD MOTOR CO. Ltd. June 10, 1964 [July 26, 1963], No. 29632/63. Heading F1N. [Also in Division F2] An air compressor is unloaded by a governor 10 having a piston 75 subjected at all times to the outlet or reservoir pressure through a passage 85, the operation of the governor being such that when the pressure reaches a certain valve a rod 79 integral with the piston moves to open the compressor inlet valve 29, and when the pressure falls to a lower value the piston moves to permit the inlet valve to close. In operation the outlet pressure passes from the passage 85 through an annular groove 87 and a radial passage 91 in the piston 75 into a blind bore 77 in the piston 75 which, as shown, is closed by a tapered portion 83 of a cover plate 73. When the outlet pressure reaches the certain value, the piston moves away from the tapered portion 83 against the action of a spring 81 so that pressure then acts over the whole area of the piston thereby causing a conical surface 93 on the piston to close an aperture 92 in a casing 71. A bleed passage 94 in the piston allows the pressure acting on either side thereof to balance and since the aperture 92 is larger in area than the bore 77 the piston will not move upwardly until the outlet pressure falls.
Patent GB-486188-A (GB)
Title: Improvements in or relating to inclination indicating or measuring devices
IPC: G01C9/08
Filed: 1937-10-29
Abstract: 486,188. Inclinometers for aircraft &c. ASKANIA-WERKE AKT.-GES. VORM. CENTRALWERKSTATT DESSAU UND C. BAMBERG - FRIEDENAU. Oct. 29, 1937, No. 29659. Convention date, Nov. 9, 1936. [Class 97 (ii)] The effects of accelerations on a gravitycontrolled member are compensated for by means responsive to the rate of change of the fluid pressure of the surrounding medium. As shown conduits 8 transmit the back pressure arising upon lateral movements of the supporting craft through constrictions 10 to compensating chambers 9. The fluid pressures on the two sides of each constriction 10 act upon diaphragms 6 and the two diaphragms are connected by a link 5. An indicator 13 is controlled through links 3, 4, in accordance with the movements both of a pendulum 1 and the link 5. By means of a similar arrangement the indicator 13 may also be corrected for fore-and-aft accelerations. In a modification the space on one side of a spring loaded piston is subjected to the back pressure of the fluid and the space on the other side communicates through a constriction with a space under the static pressure of the fluid. A diaphragm subjected to the difference in pressure on the two sides of the constriction is connected by a link to the pivoted distributing jet of an automatic control relay. The pendulum is also directly connected to the jet.
Patent GB-1463727-A (GB)
Title: Subbing of polyester film material
IPC: C08J7/056
Filed: 1974-07-04
Abstract: 1463727 Subbing photographic material CIBA-GEIGY AG 18 June 1975 [4 July 1974] 29665/74 Heading G2C [Also in Division B2]  A photographic material comprises a film of biaxially oriented linear polyester (particularly polyethylene terephthalate) which may be treated, e.g. with a solution of a phenolic compound or by corona discharge, to improve the adhesion of a coating layer thereto, a first coating of a copolymer of vinylidene chloride, a monomer selected from alkyl acrylate, alkyl methacrylate, vinyl acetate and acrylonitrile, at least one copolymerizable acid, and either (a) an allyl or vinyl component of general Formula:- where m is 0 or 1, R 1  is -H or -CH 3  when m is 1 but is -H when m is 0, X 1  is Br or Cl and R2 and R 3  are each -H, -CH 3  or the same halogen as X 1 , or (b) a vinyl component of general Formula:- where X 2  is Br or Cl, and a further coating of either (a) a gelatine layer over which may be coated a gelatino-silver halide emulsion, or (b) a polyvinyl alcohol or acetal layer having a diazonium salt incorporated therein or coated thereon.