baber/WOPTO huggingface dataset:
Patent GB-502914-A (GB)
Title: Improvements relating to electric signalling systems
IPC: H04Q1/32
Filed: 1937-10-15
Abstract: 502,914. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., and CHITTENDEN, P. A. Oct. 15, 1937, No. 28150. [Class 40 (iv)] [Also in Group XL] To compensate for loss of rectangular form of impulses during transmission, the impulse responding relay is associated with a non-linear resistance so that it is operated and released early in the period of current change both at the make and the break of the impulse circuit. In one arrangement, the non-linear resistance has a positive temperature coefficient and increases its resistance after slight delay during the make period. In the arrangement shown, the make applies positive potential to the grid of valve VA, increase of anode current bringing about the early operation of the relay RA. Grid current flows and charges condenser C so that it tends to bias the valve negatively whereby the relay falls back quickly when the break occurs. The condenser C and resistance R may be replaced by a metal rectifier having inherent capacity, or a separate diode may provide the non-linear resistance.
Patent GB-912870-A (GB)
Title: Improved circuit arrangement for detecting earth leakage
Inventor: SHAND GEORGE
IPC: B61L7/06
Filed: 1960-08-15
Abstract: 912,870. Protective arrangements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 21, 1961 [Aug. 15, 1960], No. 28199/60. Class 38 (5). An earth-leakage protective arrangement comprises a transformer 4 having a primary winding 3 with its ends connected to a protected A.C. circuit and an intermediary point 11 connected through a rectifier 12 to one end of a D.C. relay coil 14, and a secondary winding 16 having one end connected through a rectifier 17 to the other end of the relay coil 14 and its other end connected to earth. In the event of a balanced earth fault, current flows from winding 16 to earth, through the leakage paths, the parts of the primary winding 3, rectifier 12, coil 14 and rectifier 17. The relay is energized and operates contacts 23, 24 to initiate an indicating, alarm or control operation. Should earth leakage occur from one conductor of the protected circuit then part of the primary voltage assists the secondary voltage of the transformer in energizing the relay. Resistors 25, 26 and a push-button switch 28 may be provided to test the arrangement. Condensers 15, 19 are for smoothing purposes and resistors 13, 18 limit the current in the arrangement.
Patent GB-504346-A (GB)
Title: Improvements in and relating to electric spot welding apparatus
IPC: B23K11/24
Filed: 1937-10-16
Abstract: 504,346. Electromagnetic interrupters for electromedical apparatus. COOPER, C. A. Oct. 15, 1937, No. 28152. [Class 38 (v)] [Also in Group VI] In a high-frequency violetray electromedical apparatus having an induction coil 4 with co-operating contacts 5, 6, the contact 6 is adjusted to vary the effect by sliding a button 16 up and down, the button 16 being connected by a pin 14 and slot 11a to a bell-crank lever 11 pivoted at 12 and connected at its other end to a push rod 10 connected to the spring 8 carrying the contact 6. The spring 8 engages a collar which can also be adjusted relatively to the screwed lower end of the rod 10. Movement of the button 16 first causes the contacts to engage to bring the induction coil into action and then reduces the air gap between contact and core so as to increase the strength of the discharge.
Patent GB-1000859-A (GB)
Title: Improvements in or relating to plating jigs
Inventor: PRESTON JULIUS JOHN
IPC: C25D17/08
Filed: 1963-07-17
Abstract: <PICT:1000859/C6-C7/1> A plating jig consists of a U-shaped form 10 secured to a vertical spine 11, both made of stainless steel, the form supporting the workpieces at its free ends, being surrounded by tube or a coil of wire 12 of better conductivity than stainless steel, and is secured to the spine by brazing.  The wire may be copper, brass, or phosphor bronze and is tightly wound in contact with the form, individual turns being spaced 0.001-0.5 inch.  The device may be coated with plastic material, e.g. plasticized polythene or P.V.C.
Patent GB-673123-A (GB)
Title: Improvements in and relating to resistance winding machines
IPC: H01C17/04
Filed: 1949-11-04
Abstract: 673,123. Electric resistors. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 4, 1949 [Nov. 6, 1948], No. 28295/49. Class 37. [Also in Group XXII] In a machine for making electric resistances by winding wire on a former shaped to give approximately the resistance characteristics required, the former is rotated and the wire passes over a guide moved axially along the former by a lead-screw geared to the former-rotating mechanism and a characteristic - determining cam is provided to move a brush along a linear master resistance, measuring means being provided to compare the cumulative value of the resistance wound on the former with the corresponding portion of the master resistance traversed by the brush so that any deviation from requirements may be corrected by operating a differential means to vary the rate of rotation of the lead screw relatively to that of the former. Resistance wire 1 from a reel is led by a roller guide 15 to a stepped former 2 which is rotated at a uniform speed by holders 3, 4 driven by gearing 12, 14 from an electric motor 9. The guide 15 is mounted on a slide 16 fed along the former by a screw 18 connected to the motor drive by gearing 20, 22 and a differential gear 27 whose normally stationary spider may be rotated by a handle 24. The screw 18 also feeds a slide 28 carrying a cam 30 engaging a follower 31 on a transverse slide 32 supporting a brush 37 in contact with the fixed master resistance 35. A brush 45 on the guide slide 16 engages the last turn which has been wound on the former 2 and the resistances are connected in a Wheatstone bridge as shown in Fig. 2, 41 and 42 being fixed resistances. During operation, any variation of the galvanometer 49 from the zero reading indicates a variation of the accumulated resistance on the former 2 from the required value as determined by the shape of the former and the cam 30, this variation being corrected by the operator rotating the handle 24 in one direction or the other to cause the feed of slides 16, 28 to be speeded up or retarded until the zero reading is restored. The hand crank may be replaced by electronic means which sense the unbalance of the bridge and so actuate servo-controlled motor means to continuously and automatically operate the differential 27.
Patent GB-876668-A (GB)
Title: Improvements in or relating to clay and a method for increasing the brightness thereof
IPC: D21H19/40
Filed: 1957-09-09
Abstract: Coarse kaolin, having less than 50% by weight of particles below 2 microns, is subjected to milling in a Rafton type mill (see U.S.A. Specification 2,448,049) wherein a slurry of the clay is sprayed through a plurality of nozzles radially inwards towards a saw blade rotating with a peripheral speed of at least 30 f.p.s. The slurry may be recycled through the mill and the treatment continued until at least 50% of the clay particles have been fractured.  The brightness of the clay is increased.  The treatment may be effected on crude coarse clay or clay from which a portion of particles below 2 microns size has been removed. Specification 736,094 also is referred to.
Patent GB-243164-A (GB)
Title: Improvements relating to machines for grinding spline shafts, gear wheels, and the like
IPC: B23F1/02
Filed: 1924-11-26
Abstract: 243,164. Gear Grinding Co., Ltd., and Orcutt, H. F. L. Nov. 26, 1924. Gear-wheels, grinding and trueing teeth of. - A machine for grinding gear-wheels, spline shafts, &c., consists of a bed a having thereon a reciprocating work-table, comprising two parts b, c, with their intermediate surface d inclined slightly to the horizontal. The upper part h may be adjusted vertically by sliding it along the lower part c by means of a screw f and nut e. The part b carries headstocks g, h for supporting the work, the headstock g having combined with it a dividing-head. At one end of the lower part c is provided a trimming-mechanism! i for the grinding-wheel j, the wheel being carried by a verticallyadjustable slide k.
Patent GB-188645-A (GB)
Title: Improvements in hydraulic couplings and change speed gears
IPC: F16H39/32
Filed: 1922-10-18
Abstract: 188,645. Wingquist, S. G. Nov. 7, 1921, [Convention date]. Clutches and speed-varying mechanism.-In an hydraulic change speed gear comprising a driving rotor 2, Fig. 1, a driven rotor 5, and a stator 7, communication between the pump 2, 5 and the pump 2, 7 is cut off by a valve 9 in the direct drive position, and the stator is caused to rotate with the driving rotor. When the valve 9 is operated by the pressure in the pump 2, 5 to establish communication, the pressure in the pump 2, 7 gradually brings the stator to rest, so that the change from direct drive to a transmission ratio takes places smoothly. Reverse rotation of the stator is prevented by pawls 11, Fig. 2. on arms 10 engaging with ratchet teeth in a fixed member 13. The stator mav be constructed with or connected to relatively large flywheel masses.
Patent GB-1465466-A (GB)
Title: Heat treatment of wire rod
IPC: C21D1/44
Filed: 1975-07-04
Abstract: 1465466 Heat-treatment of wire rod CENTRE DE RECHERCHES METALLURGIQUESCENTRUM VOOR RESEARCH IN DE METALLURGIE 4 July 1975 [5 July 1974] 28367/75 Heading C7N Steel wire rod, after leaving rolling mill 1, is rapidly cooled by water or air, at 2, is deposited, at 3, in loose coils on a conveyer 4, is subjected to cooling in still air on the conveyer, in enclosure 5, is introduced, still in the form of loose coils, into a vat 7 containing an aqueous bath close to or at its boiling point, and the conditions of immersion of the wire rod are controlled to ensure transformation of the steel from austenite to ferrite/pearlite. During said rapid cooling the wire rod is brought down to a temperature of 550-700‹C; during cooling in still air the rate of temperature decrease is up to 25‹C/sec.; and the aqueous bath may contain dissolved and/or suspended inorganic salt and/ or surface-active agent. Water for the bath enters at 12; 8 may be a reservoir, and 9 is a vat into which liquid from 7 can be pumped, and stored.
Patent GB-509916-A (GB)
Title: Improvements in and relating to single-acting plunger pumps
IPC: F04C9/00
Filed: 1937-10-19
Abstract: 509,916. Semi-rotary pumps. MAGG & CO. Oct. 19, 1937, No. 28421. Void. Convention date, Oct. 23, 1936. [Class 110 (ii)] The pump, or engine, has one or more arcuate pistons 3 moving in cylinders 2, and suction and discharge valves 7, 8, placed outside the cylinders. The pump is single acting. Several pump units may be arranged side by side.
Patent GB-495506-A (GB)
Title: Improvements relating to linear-dimension gauges
IPC: G01B3/22
Filed: 1937-10-20
Abstract: 495,506. Linear - dimension gauges. BOLTON, E. Oct. 20, 1937, No. 28532. [Class 106 (ii)] Comprises a portable gauge having a slidable spindle connected to actuate a rotatable indicator, the axis of which is inclined at an angle, for example, of about 45 or 60‹ with that of the spindle. The casing 11 is provided with a bore for a spindle 12 which is slidable without rotation against the influence of a spring 13. A rack on the spindle gears with a pinion 14, the shaft of which carries a skew gear 16 from which the drive is taken to a pinion 17 which moves directly or through further gearing a pointer 18 rotatable in a plane disposed at an angle of 35 to 40‹ to the axis of the spindle 12. The pointer moves over a scale 19 which may be set by rotating a knurled ring 20 which is then clamped by a screw 21. The machined surface 22 is adapted to spigot into a supporting clamp. A similar spigot 23 is formed at right-angles and may also be used for this purpose. In another form, a bar of square section is adjustable in a slide which is provided with a spigot for securing to a support standing up from a base. The gauge is secured by its spigot 23 to the bar. In a further form, the support standing up from the base is adapted to receive the square section bar and the gauge is provided with a two-armed feeling lever, one end of which engages the work and the other the end of the spindle 12.
Patent GB-270167-A (GB)
Title: Improvements in or relating to coupling pins and the like for use with connecting rods, links and other parts of machinery
IPC: F16B21/04
Filed: 1926-11-12
Abstract: 270,167. Henderson, F. Nov. 12, 1926. Nuts; bolts. - Rods or link members such as c, d are coupled together by a joint pin a formed with a head b at one end and with bayonet-shaped grooves e, g at the other end, these grooves being engaged by projections formed integral with a nut or hinge h, the parts being kept in the assembled positions by a spring j. The members h, b may be milled on the outer edge. A washer may be interposed between the inner end of the spring and the link member, and the spring may be permanently secured to the member h. Specification 10127/12 is referred to.
Patent GB-387633-A (GB)
Title: Improvements in cloth finishing
IPC: D06C7/02
Filed: 1932-06-08
Abstract: 387,633. Finishing fabrics. CLUETT, PEABODY, & CO., Inc., River Street, Troy, New York, U.S.A.-(Assignees of Cluett, S. L. ; River Street, Troy, New York, U.S.A.) June 8, 1932, No. 28594. Convention date, June 22, 1931. Divided on 389,686. [Class 42 (i).] A fabric w is ironed on one side, reversed, and ironed on the other side in the same machine. As shown, the fabric is first passed between a heated roller 18 and an endless belt 17 and after reversal is passed between a second heated roller 19 and the belt 17. Reversal is effected by a number of bars or rollers 53, 54, 54 angularly arranged. Specification 389,686 is referred to.
Patent GB-391126-A (GB)
Title: Improvements in or relating to shirt collars
IPC: A41B3/06
Filed: 1931-10-15
Abstract: 391,126. Collars for personal wear. BLAIKIE, D. H. and GREENWOOD, J. M., (trading as NEW REVERSIBLE COLLAR CO.), Royal London House, Deansgate, Manchester. Oct. 15, 1931, No. 28614. [Class 141.] Reversible collars of the soft or semi-stiff type are provided with stiffeners 13 in the ends of the collar top 9, the stiffeners being positioned between the plies of the collar and anchored by stitching. The stiffeners may take the form of rustless wire in sinuous form, or may be strips of stiff material, such as buckram. In Fig. 6 is shown the incorporation of a stiffener 15 of woven material with one part of lighter weave than the other so as to be more readily penetrable by stitches.
Patent GB-944971-A (GB)
Title: Process for the dealkylation of aliphatic-aromatic compounds
IPC: C07C4/14
Filed: 1962-07-26
Abstract: 944,971. Dealkylating alkyl aromatics. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. July 26, 1962 [July 28; 1961], No. 28788/62. Heading C5E. The dealkylation of alkyl aromatics is effected in the presence of hydrogen-containing gas derived from a catalytic reforming process which has been at least partially freed of hydrocarbons by at least one absorptive treatment of which the last (or only) treatment is effected with a liquid containing at least 90% wt. of C6+ hydrocarbons and not more than 5% wt. of C2-C4 hydrocarbons. The dealkylation is effected conventionally with or without a catalyst. The treatment of all or part of the reforming tail gas preferably results in a gas containing not more than 2% mol. of C2+ hydrocarbons and the total gas fed to the process (fresh and recycle) contains 40-50% mol. methane. Preferred absorption liquids are aromatic hydrocarbons, e.g. all or a fraction of a reforming reaction feed or product or a feed to or product of a dealkylation process.
Patent GB-915182-A (GB)
Title: Improvements in or relating to silicon carbide semi-conductor devices
IPC: H01L29/24
Filed: 1959-08-24
Abstract: The Specification relates to the provision of electrodes on silicon carbide bodies and gives details of compositions of the following alloys: AuAl; AuB; AuNb; AuTa; AuW; AuTaAs; AuTaAl; AuTaB; AuTaBi; AuTaIn; AuTaNb; AuTaSb; AuTaSi; AuTaAlSi. Reference is also made to an alloy for a support consisting of Fe (54%) Ni (28%) and Co (18%) by weight.
Patent GB-254592-A (GB)
Title: Improvements in electrical plug-switches
IPC: H01R13/71
Filed: 1925-11-16
Abstract: 254,592. Row, F. W. Nov. 16, 1925. Two-part couplings combined with electric switches. - The plug 3, Fig. 2, of a two-part coupling is connected by wires 5 to a stage-lighting circuit &c., the wires passing through the hollow wooden body thereof and being secured by screws 8 to a pair of diametrically-projecting contacts 4. The plug is inserted in a circular aperture 12, Fig. 3, in the top of a casing 9, the contacts 4 passing through gaps 13 therein and through channels 16 in a fixed insulating block 15 into gaps 25 a rotatable insulating ring 23. The plug is then rotated clockwise, carrying with it the ring 23 and the contacts 4 engage between pairs of contact plates 20 secured in spaced relation by distance-pieces 19 and screws 22 on the underside of the block 15. As the supply cables are laid in channels 17 in this block and are connected to the screws 22, connection is effected between these cables and the wires 15. The plates 20 are of arcuate shape and are located in a circumferential groove 24 in the ring 23, which serves to cover the contacts when the plug is withdrawn. The ring is retained in place by a spring 26, and another spring 30 presses on an axially-movable block 29, which by engaging with the bottom of the plug 3 serves to eject the latter when it is turned counter-clockwise. In a modified construction, the block 29 is secured against rotation, and in its raised position engages the ring 23 by splines so as to prevent rotation of the latter. Thus the contacts cannot be uncovered until the plug has been inserted so as to depress the block 29.
Patent GB-1057552-A (GB)
Title: Air heating apparatus
Inventor: HOTTENROTH FRED WILLIAM
IPC: B60H1/22
Filed: 1963-07-22
Abstract: 1,057,552. Rotary distributors. HUPP CORPORATION. July 22, 1963, No. 28984/63. Heading H2B. [Also in Divisions F1 and F4] The circuit interrupter for the electrical supply to a spark plug causing the combustion of fuel in fluid fuel burning apparatus comprises a rotor shown in Figs. 6 and 8. The rotor comprises an insulating core 152 with a copper or like metal cylindrical sleeve 150 which includes electrically isolated inserts 154 and 156, extending approximately half the length of the rotor assembly and each of which extends over an arc of about 60 degrees around the rotor. Two brushes are in contact with the rotor, one with the continuous portion and one with the same portion and the insulated portions alternately during rotation of the rotor, one of these brushes being connected to the circuit and one to earth.
Patent GB-747974-A (GB)
Title: Improvements in disc brakes
IPC: F16D55/228
Filed: 1952-11-11
Abstract: 747,974. Disc brakes. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Oct. 20, 1953 [Nov. 11, 1952], No. 29009/53. Divided out of 747,965. Class 103 (1). The invention concerns hand brake mechanism for disc brakes and relates particularly to a construction suitable for operation in conjunction with fluid pressure actuating mechanism such as that described in Specification 747,965. The mechanism comprises a pair of substantially triangular plates 25, positioned opposite one another on each side of the disc 28 with the apex of each plate extending beyond the outer periphery of the disc. The plates pivot at their inner ends about pins 27 secured to the fluidpressure cylinder calipers 26 and are closed together by screw and nut mechanism operated by link 34 pivoted to an arm 33 to engage friction pads 35 with the disc. A further construction of mechanically operated brake mechanism is described which is not disposed in combination with fluid - pressure operating mechanism. Specifications 688,382 and 712,534 also are referred to.
Patent GB-856057-A (GB)
Title: Improvements in arc shields for multi-pole electric switches
IPC: H01H9/36
Filed: 1957-09-16
Abstract: 856,057. Arc-rupturing in switches. CRABTREE & CO. Ltd., J. A., and JELLEY, G. A. Sept. 10, 1958 [Sept. 16, 1957], No. 29038/57. Class 38 (5). An arc chute for a multipole switch comprises a series of similar mouldings 6 secured together by rivets 12 with resilient washers 11 between them. The mouldings 6 are grooved at 6a to receive metal plates 8 forming " deion " grids 7 at each side of the contacts 3, 4. Vents 9 are formed in the mouldings 6 which are also slotted at 14 to engage guides 15 on the fixed contact carriers 2. The moving contacts 3 may be as described in Specification 856,056. Specification 856,059 also is referred to.
Patent GB-158134-A (GB)
Title: Improvements in toy motor-cars
IPC: B62K5/00
Filed: 1919-11-22
Abstract: 158,134. Wilson, J. W., and Wilson, A. Nov. 22, 1919. Velocipedes for children.-The body A is bent from a sheet of seamless plywood or other material, being semicylindrical at the front and open at C at the top of the back. The front is closed by a panel E shaped to imitate a radiator, and combined mud-guards and running-boards H, I are fitted. The rear is closed by a panel F.
Patent GB-210493-A (GB)
Title: Improvements in or relating to sensitized papers and a process for the manufacture thereof
IPC: D21H17/22
Filed: 1922-10-25
Abstract: 210,493. Hydroloid, Ltd., (Exportingenieure f³r Papier und Zellstofftechnik Ges.). Oct. 25, 1922. No Patent granted (Sealing fee not paid). Printing-paper for photographic purposes is impregnated with a sizing material such as animal size, casein, or albumen by passing it first through a bath of impregnating solution in such a manner as to cause partial impregnation only and then between pressure rolls, either in the sizing bath or after passing through it, to press the sizing material into the paper and effect complete impregnation. The paper is also treated with a hardening agent such as alum, chrome, salts, or formalin, which may be added to the sizing bath or applied subsequently, as by rollers. To improve and accelerate the impregnation an alkali such as caustic soda, or an acid such as lactic acid, may be added to the sizing bath. The sizing bath is at a temperature of 35 to 40‹ C. and to prevent the formation of pores or cracks the paper is ecoled prior to drying by a current of cold air. The paper is stored in a wet condition in p@les or on reels to assist a uniform distribution of the sizing- material and prevent glazing of the surface. Specification 169,676, [Class 96, Paper &c.], is referred to.
Patent GB-822010-A (GB)
Title: Improvements in or relating to electric supply arrangements
IPC: H05C1/02
Filed: 1955-10-14
Abstract: 822,010. Charging and discharging capacitors; supply systems for discharge lamps and electric fences; connecting. WOLSELEY ENGINEERING Ltd., and BANKS, C. H. Nov. 13, 1956 [Oct. 14, 1955; Dec. 6, 1955], Nos. 29265/55 and 34903/55. Classes 38 (2) and 38 (4). A circuit for charging a capacitor which is periodically discharged through, say an electric fence or flashing a discharge lamp, comprises a transistor A, Fig. 1, fed from a battery, coupled to form an oscillator by a transformer B, the secondary winding of which charges a capacitor E through a single half-wave rectifier D or voltage multiplying system. Terminal G is connected to the electric fence which is periodically charged when a spark gap F breaks down. A resistor H connected between the fence and earth discharges the fence between pulses. When the load is a flashing discharge lamp, this is directly connected across the capacitor E.