baber/WOPTO huggingface dataset:
Patent GB-201928-A (GB)
Title: Machine for the manufacture of buttons
IPC: B21D53/48
Filed: 1923-08-02
Abstract: 201,928. Aktiebolaget Knappfabriken. Aug. 2, 1922, [Convention date]. Buttons are made from two metal strips by a machine which feeds the strips past scamping, embossing, piercing, and blanking out tools and transfers the pairs of blanks to rotary tools which assemble and secure them. Each strip is fed by a pawl 44, Fig 13, which is capable of limited oscillation in, and reciprocation with, a slide 25 carried by spring mounted guides 26. The pawl 44 is connected to a lever 37 by a link 34, a spring 39 being provided to ensure that the slide 25 always advances to the same position as deter mined by a fixed stop 45. The lever 37 is oscillated by screws 41, 42, carried by a lever 121, Fig. 2, operated by cams 119, 120 on a shaft 100 which is driven by a chain 104 from the main shaft 99, Fig. 1. Before reaching the feeding device C the strip A is stamped, embossed with anv desired inscription, and pierced by punches 1, 2, 3, Fig. 1, operated by an eccentric from the shaft 99. Similarly the strip A<1> is cupped in two stages and pierced by punches 11, 12, 13, a spring clamping ring 18, Fig. 7, being used with the punch 11. The strips are raised from the piercing bolsters 17 by springs 22. The strip A then passes through a slot 53, Fig. 5, and the formed blanks are punched out by an annular punch 54, flanged by a sleeve 58 and fixed die 56, and lifted, until engaged by spring pins 66 on a pivoted carrier E, by a rod 52 having pins 63 to engage the sewing holes. The strip A<1> is similarly punched and' each blank lifted, without being flanged, until engaged by spring jaws 71, Figs. 1 and 4, on a pivoted carrier E<1>. The carriers E, E' are then rotated by pinions 75 and racks 81 operated by a cam 109, to bring the blanks into coaxial position, and a die 88, sliding in the carrier E<1> is advanced by lever 86 and cam 115, to force the blanks together and join them, the conical end 87 serving to release the blank from the jaws 71 when these retire. The finished button is then pushed off the pins 66 by a rod 89 operated by a lever 85 and cam 114. The waste strip is cut up by shears 97, Fig. 6, operated by a lever 132 and cam 131 on the shaft 100 which also carries eccentrics 123 and cams 124, 125 for actuating the levers 128, 127, 126 which operate the tools 54, 58 and 52 respectively.
Patent GB-776071-A (GB)
Title: Improvements in apparatus for the physical interaction of two media
IPC: F24F6/04
Filed: 1954-07-07
Abstract: 776,071. Ventilating. MUNTERS, C. G. July 7, 1954 [July 13, 19531. No. 19863/54. Class 137 [Also in Group XIII] In apparatus in which a change in the condition of a fluid is produced by bringing it into direct contact with another fluid and in which one of the fluids is a gas and the other a liquid, the said fluids are caused to flow in direct contact with each other through the interspaces between spaced laminations to bring about the desired . change, means being provided whereby gas leaving the interspaces flows through passages formed between points of collection of the liquid. The space between adjacent laminations is not more than 3 millimetres and preferably between 1 and 2.5 millimetres, and the laminations are made of a poor heat conducting material such as waterproofed paper, glass fibre fabric, synthetic plastic, asbestos or fabric having a thickness of a fraction of a millimetre. In another form each lamination comprises a sheet 160 (Fig. 7) of paper, synthetic plastic or gauze overlaid on one or both sides thereof with a layer or layers 162 of fabric or glass fibres. The layers 162 may alternatively comprise fibrous or porous material having absorbent or, liquid spreading properties. Adjacent laminations are spaced apart by distance pieces which may be of metal. The invention is said to be applicable particularly in varying the temperature and/ or the moisture percentage of air by means of a liquid such as water with or without the addition of a moisture absorbing substance such as calcium chloride. Drying of air by the removal of water vapour, e.g. by means of a cold aqueous solution of calcium or lithium chloride and removal of trichlorethylene by means of an oil are mentioned. Fig. 1 shows an arrangement in which the laminations 38 are arranged in the form of a rotating mass 26 which together with a fan is rotated by a motor 22. Water is sprayed into the interspaces between the laminations through nozzles 46 and at the same time air is drawn by the 'fan through openings 50 in a casing 10, through the interspaces in direct contact with the water and through a filter 54 which removes entrained, water particles, the air being discharged through openings 52. Water discharged through the interspaces by centrifugal force collects at the bottom of the casing and is discharged through a pipe 48. Water retained in the interspaces by capillary action collects at the projections 60 formed at the edges of the partitions allowing the air to pass out between the projections. In Fig. 5 the laminations are stationary, air entering through duct 144 flows through the inter- .spaces to an outlet 152 in counterflow to the water which is discharged on to the partitions through nozzles 156.
Patent GB-147836-A (GB)
Title: Improvements in wireless telephony systems
IPC: H04B1/26
Filed: 1920-07-09
Abstract: 147,836. Soc. Franþaise Radio-Electrique. Feb. 24, 1917, [Convention date]. Grant of Patent refused. Wireless telephony reception apparatus comprises a source of continuous oscillations having such a frequency relatively to the carrier wave frequency that the pitch of the beat note produced lies towards the upper or lower limit of audibility so as not to interfere with the received speech. Reference is made to a known arrangement in which the local frequency is identical with the carrier wave frequency.
Patent GB-1437454-A (GB)
Title: Hinges for vehicles doors
IPC: E05D11/10
Filed: 1973-04-26
Abstract: 1437454 Hinges BLOXWICH LOCK & STAMPING CO Ltd; 25 April 1974 [26 April 1973] 19890/73 Heading E2F A hold open device for a. vehicle door hinge comprises three cooperating cams 10, 11, 12 mounted on a hinge pin 9 and loaded axially by a compression spring 13, the cams 10 and 12 being slidably keyed to hinge leaf 2 and the cam 11 being slidably keyed to hinge leaf 1. Each cam has a lug for keying it to the respective hinge leaf and has a diametrical groove in one face and a complementary rib on the other face. The groove on the cam 10 is angularly displaced with respect to the groove on the cam 12 so that the door can be located in two angularly spaced positions. Reference has been directed by the comptroller to Specification 1397776.
Patent GB-466077-A (GB)
Title: Improvements in or relating to composite light-diffusing sheets or plates
IPC: F21V5/00
Filed: 1936-07-17
Abstract: 466,077. Ornamental light-diffusing sheets ; lamp chimneys. THERMOLUX GLASS CO., Ltd., and BOOTH, R. July 17, 1936, No. 19924. [Class 20 (iii)] [Also in Groups XI and XV] A light-diffusing translucent sheet comprises two sheets of transparent or translucent material enclosing between them broken filamentary material. -The outer sheets may be of glass, or cellulose derivative, gelatine, or artificial resin, and may be ribbed, etched, frosted, or coloured. The broken filamentary material may also be coloured and of similar composition, or a mixture of substances may be used, the one of greater refractive index being present in less quantity. The sheets may be used for lamp shades, curved windows, panels and the like.
Patent GB-351261-A (GB)
Title: Improvements in door bolts
IPC: E05C1/04
Filed: 1930-07-02
Abstract: 351,261. Sliding bolts. WAINE, G. A., Littlemore, Pattingham, and WAINE, J. V., The Firs, Compton, both near Wolverhampton. July 2, 1930, No. 20030. [Class 44.] A door bolt C has a pin K sliding along a slot E in the back-plate A and adapted, when the bolt is rotated in its shot or retracted positions, to enter one or other of lateral slots F, G. H, J formed in the bolt guide B and communicating with slot E. The Specification describes the formation of the guide B and plate A shown from a single blank, and a modification in which plate A and guide B are formed separately and secured together. The length of slot E determines the throw of the bolt, which has an operating head D of usual form.
Patent GB-516402-A (GB)
Title: Improved means for adjusting and indicating the correct height of tennis nets
IPC: A63B61/04
Filed: 1938-07-06
Abstract: 516,402. Tennis net adjusters. HIPWELL, A. J, M. July 6, 1938, No. 20048. [Class 132 (ii)] A tennis net adjuster and height indicator comprises a centre band 1 doubled to extend on each side of the net and connected to the displaceable part of an extensible spring fitting fastened to an anchoring device or ground weight, one end of the band being formed with a weighted extension 1a which should just clear or touch the ground when the net is at the correct height. The extensible fitting may consist of a spring pressed plunger 7 in a casing 8. A hook 12 on the casing engages the ground ring or weight. A cup leather 14 on the plunger entraps air with the casing and damps the oscillations of the spring.
Patent GB-240610-A (GB)
Title: Improvements in or relating to the electrolytic manufacture of dental plates
IPC: A61C13/02
Filed: 1924-08-25
Abstract: 240,610. Weigele, E. E. B., and Jansz, E. Aug. 25, 1924. Teeth, artificial.-Dental plates of pure nickel are prepared by the following process. A cast is made from pure alabaster plaster of Paris, without salt, alum or the like, formed on a metal ring or provided with a metal strip to serve as an electric conductor. The cast is dried in a furnace for 6-10 hours at 40‹ C. and then cooled and brushed with a 10 per cent solution of celluloid in acetone. It is again dried and brushed with fine graphite. The graphite coating should be of greater area than the plate to be produced to allow of trimming. An excessive coating may be removed by coating the excessive area with the celluloid-acetone varnish and placing the cast in boiling water. This also removes excluded air. When the cast comprises teeth formations these are filed down to 2 or 3 mm. to prevent excessive deposition of metal thereon. The cast is then made the cathode in a bath consisting of 1 litre of water and 500 gms. of nickel plastic salts consisting of 2 parts of nickel vitriol to 1 part of Glauber salts, the bath being acidified by a ten per cent solution of sulphuric acid until acid to litmus, but not to Kongspaper. Excess of acid may be neutralized by a 10 per cent solution of pura soda. The current required is about O.S amp at 1.6 volts, and the temperature 70‹ C. The anode is of pure nickel and is wrapped in parchment. It is placed about 40 cms. from the cast.
Patent GB-663902-A (GB)
Title: Improvements in and relating to warp beams or weaving beams
IPC: D02H13/28
Filed: 1949-08-02
Abstract: 663,902. Warp beams. DIKKERS & CO., G., N. V. Aug. 2, 1949, No. 20133/49. Class 142(ii) A warp beam flange is adjustably secured to the beam by a flexible clamping shoe embracing the beam through an angle of more than 90 degrees. The shoe 3 is located in a recess in the hub 1 of the flange and is clamped against the beam by means of screws 5 and nuts 6, a small screw 7 preventing the shoe dropping out when the flange is removed. In further modifications one of the screws 5 may be replaced by a pivot consisting of a pin or a projecting ridge in the hub. Alternatively pressure is applied to the shoe ends by a separate member 10 and a single screw and nut 5. 6.
Patent GB-1155962-A (GB)
Title: Improvements in or relating to Grinding Machines.
Inventor: JONES JOHN CYRIL
IPC: H02P29/00
Filed: 1965-05-13
Abstract: 1,155,962. Abrading. CHURCHILL MACHINE TOOL CO. Ltd. 8 Aug., 1966 [13 May, 1965], No. 20171/65. Heading B3D. [Also in Division G3] A grinding machine control circuit of the type described in Specification 911,982, in which the load on a grinding wheel motor is maintained constant at a desired value determined by the setting of a potentiometer associated with an amplifier and a relay forming part of the said circuit, is modified by replacing the single potentiometer by a plurality of potentiometers which can be set to different values. Thus, when a workpiece has to undergo a cycle of operations involving differing grinding conditions each potentiometer is set accordingly and is switched into the control circuit, at appropriate times by relays or the like, whereby the grinding cycle may be effected automatically. A suitable relay and potentiometer circuit is described with reference to Fig. 2 (not shown).
Patent GB-293803-A (GB)
Title: Improvements in or relating to high frequency signalling systems
IPC: H03C3/28
Filed: 1928-07-11
Abstract: 293,803. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Peterson, H. 0.). July 12, 1927, [Convention date]. Receiving systems ; thermionic modulating systems; fading, preventing.-Signals sent by frequency modulation as distinct from amplitude modulation are received by the heterodyne method. The modulation may be produced by an electromagnet traversed by microphone currents with its armature connected to one plate of a small condenser connected in parallel with the tuning condenser of an oscillation generator (Fig. 1, not shown). For telegraphic signalling the electromagnet may be in circuit with an alternator and a keying-switch, and its armature may be linked to a copper plate adjacent to a coil in the tuned circuit of the oscillator (Fig. 2, not shown). The received waves are reduced in frequency by heterodyning with a local oscillator 64. and the resulting intermediate frequency is passed through one or more amplifiers 66 and to a detector 68. The amplifier 66, cr the input circuit of the detector 68. is slightly mistuned to the intermediate frequency so as to work on the slope fm instead of at the resonant peak fr, Fig. 4. The frequency modulation is thus converted into an amplitude modulation and gives a rectified signal through the planes 70. The extent of the frequency modluation may be about 500 cycles per second. The system of modulating by varying the wave frequency is stated to help in the elimination of fading. The subject-matter of Specification 295,957 is disclaimed.
Patent GB-976806-A (GB)
Title: Telegraph system with signal testing and error correction
Inventor: DUUREN HENDRIK CORNELIS ANTHON
IPC: H04L1/00
Filed: 1961-06-06
Abstract: 976,806. Telegraphy. DE STAAT DER, NEDERLANDEN, TEN DEZE VERTEGENWOORDIGD DOOR DE DIRECTEUR - GENERAL DER POSTERIJEN, TELEGRAFIE EN TELEFONIE. June 6, 1961 [June 9, 1960], No. 20370/61. Heading H4D. In a telegraph system in which errors are corrected by repetition the amplitudes of the received signal elements are compared with a threshold value and repetition is called for if the amplitude lies below this threshold. The embodiment described uses frequency shift signalling, the received 7-unit code signals being converted to double current signals. The signals are received in blocks of three code characters, blocks being separated by a time equal to one block, and are passed to a synchronizer which generates pulses, the latter actuating a ring counter having twenty-three stages which controls the timing of the receiver circuits. The double current signals U pass to an AND gate 13 and if the first received element has positive polarity, capacitor a is charged positively, if it has negative polarity the capacitor is charged negatively. Capacitors b, c . . . (twentyone in all) are charged in sequence. As a is charged so the signal element is tested in unit 14, and if it has sufficient amplitude trigger K + s or K - s is set. Subsequently, a unit T charges capacitor a to the full level of the first element. After the reception of all the signal elements of a block 1 pulse E 1  causes the various polarities on the capacitors a, b . . . to trigger units Kc 1 , Kc 2  . . . Kc 21 , and at a subsequent instant F 1  the capacitors are discharged via unit 15. However, if an element is received mutilated and it has insufficient amplitude to trigger units Ks, Ko is triggered, this causing the operation of unit 15 to be inhibited and the repetition of the signal. The capacitors therefore maintain their charge, and eventually, due to repetition, the faulty signal capacitor voltage builds up to the correct value. When it has been ascertained that all twenty-one elements are correct the signals are passed sequentially in groups of seven bits to a code converter which converts the signals to 5-unit start-stop code. These signals control a printer, and the printing cycle is such that the third character of one block is printed at the instant of reception of the last element of the succeeding block, Fig. 7 (not shown). Specification 930,128 is referred to.
Patent GB-1267454-A (GB)
Title: Temperature controlled fluid valve
Inventor: QUINN FREDERIC RAYMOND
IPC: F16K31/02
Filed: 1969-04-22
Abstract: 1,267,454. Valves. ZYROTRON INDUSTRIES Inc. 22 April, 1969, No. 20417/69. Heading F2V. Energization of electric heating element 84 causes expansion of material 102 in cylinder 90 and, due to piston 98 abutting the cross-bar 48 of a fixed bridgepiece, the cylinder is displaced vertically upwards. A bracket 58 in sliding engagement with the cross-bar 48 and the vertical limbs of the bridgepiece transmits the displacement of cylinder 90 to stem 44 of valve member 26 to unseat the latter. Resilient flange 32 of the valve member 26 provides a return bias. The heating element is encapsulated in a ceramic material which stores the heat generated. Flange 32 can be replaced by a snap-over diaphragm, and valve member 26 may alternatively be in the form of a sliding gate. The expansible material is adapted to expand and contract rapidly at a particular temperature.
Patent GB-698076-A (GB)
Title: Improvements in or relating to thermostatically controlled quartz crystals
Inventor: FULLER DENNIS QUINTRELL
IPC: H03B5/34
Filed: 1949-08-05
Abstract: 698,076. Automatic temperature control systems. PYE, Ltd.. July 24, 1950 [Aug. 5, 1949], No. 20475/49. Class 38 (iv). [Also in Group XIII] In a quartz crystal unit to be fitted in an envelope 15, in order to obtain balanced heating of the crystal 10 and of a thermostatic switch 12 controlling the current of an electric heater 18 for the crystal, a thermal baffle 20 is arranged between the heater and the crystal. Moreover, the components are mounted between a pair of spaced plates 13, 14, e.g. circular plates of mica or ceramic material, whose edges contact the wall of the envelope 15 with a sliding fit. The envelope is cylindrical and fitted with a base having pins for electrical connection of the components. The baffle 20, which may be apertured, is said to compensate for the low thermal capacity of the crystal 10 compared with that of a bimetallic strip 22 of the switch. Between the bimetallic strip 22 and a plate 25, on which the strip is mounted and which carries a stationary contact 26, is located an insulating spacer 24. This spacer acts as the dielectric of a condenser formed by the enlarged end 27 of the bimetallic strip and by the plate 25 and which, being in shunt with the switch contacts, acts as a suppressor of interference, as described in Specification 698,089, [Group XXXVII]. The heater element 18 is spaced from the metal baffle-plate 20 by mica or ceramic insulation 21.
Patent GB-381967-A (GB)
Title: An improved method of and means for the manufacture of compounded structures of sheet material such as splinterless glass
IPC: B32B17/10
Filed: 1931-07-17
Abstract: 381,967. Compound glass. HOWE, F. J. 0., Garth House, Dorking, Surrey. July 17, 1931, No. 20519. [Class 140.] Compound sheet material such as splinterless glass is made by passing the assembled sheets through a bath in which the temperature of the assembly is gradually raised and then gradually lowered, pressure being simultaneously applied to effect compounding. The assembled sheets are enclosed in an air and liquidtight container a, for example a rubber bag or sheet metal envelope, which is exhausted and conveyed on an endless belt b through a tank c by sprockets h and wheels h<2>. A temperature gradient in the liquid in the tank c, which may be water or brine, is set up by a heater e and cooling means d. The pressure may be varied simultaneously with the change of temperature by providing a slack portion b<1> in the conveyer b whereby the assembly is gradually submerged in the liquid.
Patent GB-1159308-A (GB)
Title: Method and Apparatus for Extruding Tubes and Pipes
IPC: B29C48/09
Filed: 1967-05-03
Abstract: 1,159,308. Extrusion die-heads. OY WIIK & HOGLUND A.B. 3 May, 1967 [23 May, 1966], No. 20578/67. Heading B5A. A method of extruding tubes comprises passing plastics material from a screw feeder (not shown) successively along two passages 6a diverging from the longitudinal axis of an extrusion head 1-5, two parallel spaced tubes 6b, two passages 6c converging towards the longitudinal axis, a slightly diverging conical passage 6d, a conical diverging passage 6e and an extrusion outlet 6f determining the thickness of the tube wall. The peripheral width of the passages 6c, 6d increases progressively so that the material from the passages 6b gradually widens peripherally until it forms a continuous conical surface flowing down the passage 6e to the outlet 6f. A constriction 7 and a breaker plate 12 facilitate homogenization of the plastics. Elements 8, 9 bolted together form the inner surfaces of the passages 6c-6f and a central bolt 10 supports an element located against the inner surface of the extruded tube, which is also fed with compressed air from a tube 11. Parts 2 containing the passages 6b may be unbolted from the head.
Patent GB-238568-A (GB)
Title: Paper perforating device
IPC: B26F1/36
Filed: 1925-03-04
Abstract: 238,568. Kline, F. J. June 30, 1924, [Convention date]. Reciprocating-punch machines.-A paper-punch has a base 1 with vertical lugs 2 carrying bosses guiding spring-retracted punches 4 pivoted to the arms of a lever 6 pivoted, with play, to the lugs 2. The base 1 carries a die-plate 5, and, beneath an extension, slides an edge gauge formed of a strip 19 with upstanding lugs 20 locked in adjusted position by a pivoted spring- urged detent 24. The edge gauge is frictionally held in adjusted position at a number of points by a screw engaging the die-plate extension, by external springs, or as shown in Fig. 7, by corrugations in the strip 19. Specification 236,162 is referred to.
Patent GB-330162-A (GB)
Title: Improvements in swivelling bases for overhead electric trolley poles
IPC: B60L5/16
Filed: 1929-07-04
Abstract: 330,162. Willis, A. M., and Brecknell, Willis, & Co., Ltd., and Wilkinson, R.H. July 4, 1929. Supporting arrangements for collectors.-The trolly pole socket 3 is mounted on the spigot 2 of the base 1 by means of upper and lower tapered roller bearings 4, 5 arranged with their axes substantially vertical. Adjustment is effected by a cap 6 secured by screws 7, 8, felt washers 9, 10 maintaining the bearing oil-tight. The socket 3 has an extension 22 with adjustable bolts 21 which engage the socket to regulate the pole elevation.