baber/WOPTO huggingface dataset:
Patent GB-508843-A (GB)
Title: Improvements in and relating to systems employing electric discharge devices
IPC: B23K11/24
Filed: 1937-11-01
Abstract: 508,843. Supply systems for consumption apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 1, 1937, No. 29842. Convention date, Oct. 31, 1936. [Classes 38 (ii) and 38 (iv)] Thermionic and like control.-To prevent a heavy transient starting current in a circuit, such as a welding circuit, the energization of which, from alternating current mains, depends on the conductivity of a controllable discharge device, the discharge device is rendered initially conductive at a predetermined point in a predetermined half-cycle of mains voltage and at the beginning of successive half-cycles of the same sign. In Fig. 1 a main electric discharge device 6 controls the supply to a load circuit 2 from the secondary of a transformer 3 the primary of which is fed from alternating current mains 1. In the control circuit 14 of this discharge device an alternating voltage supplied from the secondary of a transformer 11 is superposed on a unidirectional negative biassing potential 16. An auxiliary discharge device 10 controls the supply to the primary of transformer 11 from the mains 1. The primary of transformer 11 is shunted by a resistance 20 in series with a condenser 21 to improve the waveform of the voltage supplied to circuit 14. In the control circuit 22 of the auxiliary discharge device 10 an alternating voltage of peaked waveform, obtained from the secondary of a transformer 29, is superposed on a negative biassing potential 23 obtained through a variable potentiometer 25 from a direct current supply 24. The transformer 29 is supplied from mains 1 through an adjustable phase shifting device 30. At starting, the negative biassing potential supplied by potentiometer 25 is reduced until the peaked voltages supplied by transformer 29 have an overriding effect. The time during the half-cycle at which discharge device 10 is initially rendered conductive is determined by the setting of the phase shifter 30. In succeeding half-cycles, however, the voltage fed back to the biassing circuit of discharge device 10 by means of a resistance 31, which is also in the anode-cathode circuit of discharge device 10, causes the discharge device 10 to be rendered conductive at the beginning of the half-cycle.
Patent GB-271809-A (GB)
Title: Improvements in or relating to means for setting type wheels of printing telegraphs and the like
IPC: H04L13/06
Filed: 1926-11-25
Abstract: 271,809. Siemens & Halske Akt.-Ges. May 31, 1926, [Convention date]. Type-wheel machines; case-shift mechanism. - In shift-mechanism for the type-wheels of printing-telegraphs, calculating-machines, or the like, the type-wheel is subjected to the action of two opposed springs or other sources of power of different strength, and the printing-magnet is employed merely for releasing the springs or sources of power, the strain of shifting the type-wheel being thrown on to the motor of the type-wheel spindle. In the arrangment shown in Figs. 1 and 2, a type-wheel 3 having two rows B,Z of types for printing letters and figures respectively is secured to a sleeve 2 which can move axially on a driving-shaft 1 and is coupled thereto by means of a pin 5 on all arm 4, the axial movements being limited by the arm and the head of the pin. The sleeve is moved axially by means of a spring 11 on the shaft, and a stronger spring 9 connected to an annular plate 7 trunnioned on brackets 8. A finger 6<1> on an arm 6 secured to the type-wheel engages the plate while travelling round two-thirds of the circumference, and then registers with an arcuate gap in the plate. The printing-hammer 17 engages a slide 12 having a finger 12<1> engaging a flange 2 on the sleeve. When the type-wheel is in the axial position shown in Fig. 2, the finger 12<1> prevents axial movement, and the finger 6<1> has rocked the plate and cocked the spring 9. The spring is held cocked by means of a spring detent. 15 which drops belind the plate when released by the finger 6<1>. When a blank " figure " type is at the printing point, the finger 12<1> registers with a slot a in the flange 2, and if the printing-hammer is actuated, the finger is raised and permits the spring 9 to shift the type-wheel, the spring 11 being simultaneously cocked. On return of the printing-hammer, the slide 12 is returned by a spring 13 and the finger 12<1> engages the righthand face of the flange 2<1>. When the blank " letter " type is at the printing point, the finger 12<1> registers with a slot b in the flange, the finger 6<1> registers with the gap in the plate 7, and if the printing-hammer is actuated, the spring 11 shifts the type-wheel to the position shown in Fig. 2. To relieve pressure on the finger 12<1> there is provided a second finger 16 which abuts on the flange, the slot band a slot c permitting axial movement of the Bange.
Patent GB-874038-A (GB)
Title: Electrical regulating arrangements
Inventor: BANASIEWICZ HENRYK
IPC: G05D23/24
Filed: 1958-09-18
Abstract: 874,038. Automatic temperature-control systems. FIELDEN ELECTRONICS Ltd. Sept. 2, 1959 [Sept. 18, 1958], No. 29862/58. Class 38 (4). A temperature-control system comprises an amplifier 1 the output of which feeds a tuned circuit 9, 10 the inductor 9 having magnetically coupled thereto two inductors 14, 15 forming two arms of a bridge 4, the output terminals 7, 8 of the bridge supplying feedback to the amplifier 1. The feedbacks supplied by the inductors 14, 15 are of opposite polarities so that the arrangement is quiescent or oscillating according as to the predominance of the feedback from inductor 14 or inductor 15. A heater element 21 is supplied from a source 20 to heat a zone 22, the temperature of the zone being sensed by a temperature-sensitive resistor 23 which forms one arm of the bridge 4. When the temperature of the zone 22 is below a required temperature the bridge 4 is unbalanced such that the feedback causes the arrangement to oscillate. Energy is then developed in the winding 16 causing a transistor 25 to conduct to energize a relay 17 to close contact 19 thus allowing energization of the heater 21. When the temperature of the zone 22 returns to the required value the bridge is balanced and the feedback is such that the arrangement is quiescent whereupon relay 17 becomes de-energized to remove the supply to the heater 21. A resistor 28, capacitor 29 and a diode 30-functioning as a variable impedanceis included in the bridge 4, the diode being biased over a variable resistor 31 so that as the resistance of the temperature-sensitive resistor 23 falls to unbalance the bridge 4 the bias applied to the diode 30 causes its impedance to be reduced thereby further unbalancing the bridge 4 thus causing the amplitude of oscillation to be increased. When the resistance of the temperature-sensitive resistor 23 is increasing to bring the bridge 4 into balance the bias applied to the diode 30 causes the opposite effect on the oscillation amplitude.
Patent GB-990418-A (GB)
Title: Improvements in electrical apparatus having foil windings
IPC: H01F27/36
Filed: 1961-08-18
Abstract: 990,418. Transformers. GENERAL ELECTRIC CO. Aug. 18, 1961 [Aug. 22, 1960], No. 29889/61. Heading H1T. An electrically conducting shield structure 20 (Fig. 3) is provided in an electrical apparatus having a core and one or more foil windings to reduce current concentrations at the edges of the windings, caused by radial flux leakage, by establishing a magnetic field adjacent to the surface of each winding in opposition to the radial component of flux passing through the winding. In Fig. 1 a three-phase transformer, comprising a core 11 with yokes 15 and legs 12 carrying spirally wound aluminium or copper foil H.T. windings 13 and L.T. winnings 14, has shields 20 between the L.T. winding and core and surrounding the H.T. winding, the ends 25 of the shields defining an air gap to prevent short-circuiting currents in the shield. The lower shields and the windings are supported by insulating blocks 30 and the upper shields by insulating spacers 31. Conventional spacers (not shown) may separate the shields from the windings allowing the passage of cooling fluid. The surrounding shields may be electrically connected to the H.T. winding to reduce the voltage gradient at the edge portions of the coil. The flux emanating from the shields is created by induced currents therein, or alternatively by an alternating current applied directly to the shield. Fig. 4 (not shown) illustrates the flux distribution in the foil windings and due to the induced currents in the shields.
Patent GB-432078-A (GB)
Title: Improvements in or relating to copying lathes or like machines
IPC: B23Q35/10
Filed: 1934-01-30
Abstract: 432,078. Copying-machines. GAUTIER, L. F., 49, Rue de Sannois, Ermont, Seineet-Oise, France. Jan. 30, 1934, No. 29892. Divided out of 430,102. [Class 83 (iii)] A copying-machine particularly for making screw propellers comprises a slide 3 carrying the work pieces 12 and pattern 11, and a second slide slidable transversely to the slide 3 and fitted with the rotary tools 16 and tracer roller 14, the work and pattern being driven at a variable speed so as to maintain a constant cutting speed between cutter and work. A counter roller 15 is urged by pneumatic pressure against the opposite side of the work from the tracer 14. A friction wheel 30, Fig. 4, engages a pattern 11r identical to the pattern 11 and may be rotated by a motor mounted on an arm 31 pivoted to a ring 33 which is thus rotated at a variable speed in a frame 34<a>. The ring 33 has contacts 34 connected with a conducting ring and a brush 37 is connected to an electromagnet 38. When a contact 34 passes the brush 37 the electromagnet is energized and releases a disc 42 whereupon the disc is driven for one revolution from a friction disc 48 constantly driven from a motor 49. The rotation of the disc 42 is transmitted through a spring 44 to a shaft 45 which drives the work 12 and pattern 11.
Patent GB-363741-A (GB)
Title: Improvements in printer's line-up tables
IPC: G03F9/00
Filed: 1930-10-06
Abstract: 363,741. Registering apparatus for negatives. CRAFTSMAN LINE-UP TABLE CORPORATION, 49, River Street, Waltham, Massachusetts, U.S.A. Oct. 6, 1930, No. 29901. Convention date, Oct. 5, 1929. [Class 98 (ii).] In printers' line-up tables, which are provided with two straight-edges movable across the table at right-angles to each other, and are particularly adapted for use in the registration of printing- plates, negatives, or proof-sheets used in multicolour printing, means are provided for effecting an accurate adjustment of the straight-edges. The table-top 2, Fig. 1, which may be of glass, is mounted in a frame 3, on which the straight-edges move, and in which the table-top is vertically adjustable, to enable the straight-edges to be brought close to the work. For this purpose, the table-top is supported on sliding posts operated by screws, which are geared together and are actuated by a single crank-handle. Each straight-edge a, Fig. 3, is supported on a carriage A comprising end-pieces 16 connected by a tube 17. Gears 15, housed in the end-pieces 16 and connected by a shaft 18, Fig. 7, passing through the tube 17, mesh with racks 7, 8 at the sides of the table. To enable a fine adjustment of the straight-edge to be made, it is mounted to slide on brackets 37, Fig. 7, on the tube 17, and is provided with short racks 40, which are engaged by pinions 41 on a shaft 42. The shaft 42 can be rotated by means of worm-gearing from a vertical shaft having a knob 46 and a graduated disc 47 cooperating with a pointer. The carriage A can be tilted about the shaft 18, in order to raise the straight-edge from the table, by means of pivoted cam-members 28, Fig. 9. In the lower position of the straight-edge, the carriage is locked in position by dogs 34, which engage the racks 7, 8. The straight-edges are graduated, and may support marking-devices. Gauges 12, Fig. 1, serve to determine the position of the work, and scales are provided at the sides of the table. Specification 264,750, [Class 100 (iii), Type making &c.], is referred to.
Patent GB-429752-A (GB)
Title: Improvements relating to wrappers
IPC: C08J7/048
Filed: 1933-10-28
Abstract: 429,752. Packing. NEALE, H. A., 36, Chandos House, Palmer Street, Westminster. Oct. 28, 1933, No. 29992. [Class 94 (i)] [See also Group VIII] A package comprising an article wrapped in a lacquered foil of cellulose acetate or regenerated cellulose is rendered fluid-tight by coating with a gel, e.g. gelatine or albumen, or a soap gel. Before applying the coating, the surface is preferably treated with a wetting agent. A dye may be incorporated with the gel coating or applied thereafter. For gelatine coatings, a small quantity of glycerol or polymerized glycerol is added to reduce porosity, and the gelatine may be tanned by treatment with furfuraldehyde, alum or paraformaldehyde. The Provisional Specification refers also to the use of collodion and rigid gels such as alumina and silica gels. Specification 413,488 is referred to. Reference has been directed by the Comptroller to Specification 418,449, [Group VIII].
Patent GB-464847-A (GB)
Title: Improvements relating to centrifugal spraying machines
IPC: C13B35/00
Filed: 1935-10-31
Abstract: 464,847. Spray - producers. LORING, F. H. Oct. 31, 1935, No. 30054. Addition to 444,833. [Class 69 (iii)] A centrifugal sprayer of the kind described in the parent Specification has the basket provided with a core or block 1 of porous material hollowed out centrally to receive liquid from a pipe 9. The porous material, which may itself form the basket, may be clamped between plates 3, 4 by bolts 2 which may be shaped to act as vanes. The top plate is recessed to receive a felt ring 11 and provided with radial holes 12 to allow excess liquid to be atomized. The porous material may consist of carbon, clay, silica, vulcanite, &c. If formed of fireclay the block may be freed from organic material clogging its pores by firing.
Patent GB-299368-A (GB)
Title: Improvements relating to centralized lubrication systems
IPC: F16N7/38
Filed: 1928-10-17
Abstract: 299,368. Tecalemit, Ltd., (Assignees of Soc. Anon. des Etablissements TÚcalÚmit). Oct. 24, 1927, [Convention date]. Addition to 295,954. Force - feed lubri cating. - In a lubri eating system for motor vehicles where in an oil tank is sup plied from the oi pump under the con trol of a valve, the arrangement is such that, when the valve opened, it is locked in that position and the outlet from the tank is closed, while, when the tank is full, the valve is freed and closes while the outlet from the tank is opened The tank 6 is formed by a conical recess in the valve body 4 closed by a cover 52, a diaphragm 53 carrying a spring- pressed tubular member 56 containing a spring- pressed plunger 57 being held between the body and cover. The valve 23, controlling communication between the inlet 45 from the oil pump and a passage 51 leading to the tank, is normally closed by a spring 25 and is connected by a rod 49 slidable in the body 4 and passing through a cover 47 secured to the dashboard 12, in front of which the rod is provided with a knob 15. When the knob 15 is pushed in, the valve 23 is opened and the rod 49 closes an outlet port 46, the rod being locked in this position by the engagement with a recess 50 in the rod of a rod 58 depending from the plunger 57. Oil then enters the tank and raises the diaphragm 53 until the plunger 57 is raised by contact with the lower part of the member 56. The rod 49 is thus freed, so that the valve 23 closes and the outlet 46 is opened, oil being discharged therethrough by the action of the spring-pressed diaphragm.
Patent GB-804093-A (GB)
Title: Improvements relating to upholstered structures
Inventor: HUGHES RICHARD
IPC: A47C27/14
Filed: 1955-10-21
Abstract: In a method of making resilient cushioning members (see Group XIV) consisting of a body of polyurethane foam with grooves in one face and having a body of foam rubber attached to the other face, a body of foam rubber is placed in the bottom of a suitably shaped mould of slightly larger cross-section and a polyurethane foam forming mixture is discharged into the mould on top of the foam rubber, a lid having ridges complementary with any required grooves is placed over the mould and the mixture is allowed to foam and set, maturing taking place either in the mould or after removal from it.  Specifications 748,990 and 774,217 [Group XIV] are referred to.
Patent GB-339405-A (GB)
IPC: F22G1/00
Filed: 1929-10-04
Abstract: 339,405. Schmidt'sche Heissdampf- Ges. Jan. 9, 1929, [Convention date]. Superheating by steam.-A chamber 1 containing coiled heating tubes 6 through which flows a heating medium such as superheated steam is divided by transverse partitions 13 with staggered openings to give the steam to be heated a sinuous path over the tubes. The tubes are connected in pairs to a distributor and collector 28, 32 at the ends of the casing. To facilitate removal of the coils, the distributor and collector of each pair are arranged out of alignment with one another and on the projections of the separate coils. Each distributor or collector passes through a sleeve 34 secured steam-tight in a cover of the chamber or formed integral therewith. The partitions are supported by vertical rods 15, 16 connected together in pairs and formed with lugs 17, 18 on which the partitions rest. The inner rods 15 are hocked over the upper end of a central closed cylinder 12, and the outer rods rest on projections 21 at the bottom of the chamber. Specification 138,870, [Class 64 (iii), Surface apparatus &c.], is referred to.
Patent GB-683480-A (GB)
Title: Process and apparatus for de-sulphurizing enriched gas-purifying materials
IPC: C10K1/26
Filed: 1949-11-24
Abstract: Sulphur dioxide is produced by roasting spent iron oxide gas purifying material in a mixture of air and an inert gas, the latter being present in sufficient proportion to keep the reaction tem <PICT:0683480/III/1> perature above the ignition point of the sulphur but below 400 DEG C. In the form shown, the apparatus consists of a steel retort 5 provided with feed and discharge valves 3 and 51 for the purifying material.  Air and flue gas enter the retort through a pipe 1 which terminates under a hood 2 positioned centrally in the retort.  Combustion and vapourization of sulphur occurs in the mass of material above the hood, the temperature of the mass being controlled by varying the amount of flue gas admitted with the air so as not to exceed 400 DEG C.  The gases from the bed pass through an outlet pipe 14 to a secondary burner 15, secondary air and a combustible gas being admitted through pipes 16 and 17 so that the whole of the sulphur burns to sulphur dioxide which represents about 5-8 per cent by volume of the outlet gas from burner 15.  In a modification, Fig. 1 (not shown), the gases from the retort are absorbed in aqueous ammonia to form ammonium thiosulphate solution.
Patent GB-1178868-A (GB)
Title: Apparatus for Determining the Concentration of Vapours of Halogens or Halogen Compounds
IPC: G01N27/64
Filed: 1967-06-30
Abstract: 1,178,868. Discharge tubes. BODENSEEWERK PERKIN-ELMER & CO. G.m.b.H. 30 June, 1967 [1 July, 1966; 21 Dec., 1966], No. 30239/67. Heading H1D. [Also in Division G1] In the measurement of the concentration of vapours of halogens or halogen compounds, wherein the vapour flows past two electrodes, one of which is sensitized, so that the current flowing between the electrodes is indicative of the concentration of halogen or its compound present, the " sensitized " electrode comprises a body which is pervious to alkali atoms and contains an alkali compound which is thermally decomposed to produce the alkali. In one embodiment, the electrode includes a ceramic tube 10, Fig. 1, containing an alkali compound 11 and surrounded by a coil 13 serving both as the electrode being connected via voltage source 15 and amplifier 16 to a second mesh electrode 14, and as a heating coil. A further electrode (44), Fig. 6 (not shown), may be provided which is inserted into the alkali compound and is connected via voltage source (45) to coil 13 whereby diffusion of the alkali atoms may be adjusted electrolytically. In a modification, the alkali compound 21, Fig. 2 (not shown), is enclosed in the space between a ceramic tube 17 and casing 22, together with a heating coil 23. The associated electrode is provided by a wire coil 19 and the second electrode by a wire 20 down the centre of the tube 17. In a second embodiment, the " sensitized " electrode comprises a platinum capillary tube (24), Fig. 3 (not shown), filled with the alkali compound, the electrode being heated either by being coiled 25 round a flame, Fig. 4, or by applying an A.C. voltage across its ends, Fig. 5 (not shown). It is found that the alkali atoms diffuse along the grain boundaries of the tube, diffusion being aided by the presence of carbon in the filling. Examples of fillings for this embodiment are graphite mixed with an alkali compound or a carbonaceous alkali compound, e.g. alkali alcoholate. This latter embodiment may be used in conjunction with a flame detector (31), Fig. 5 (not shown).
Patent GB-1079751-A (GB)
Title: Improvements in building structures
Inventor: NEU EDWIN
IPC: E04B1/35
Filed: 1964-07-30
Abstract: 1,079,751. Erecting buildings. INDUSTRIEPROJEKTIERUNG ROSTOCK VEB. July 30, 1964 No. 30248/64. Heading E1A. A building framework comprises floor frames consisting of grids of girders at right angles having rectangular openings at the intersections for the columns of the building. The floor frames are constructed on the ground and hoisted up the columns. The grid may consists of pairs of parallel girders, box girders or girders in the form of an inverted U having internal longitudinal flanges.
Patent GB-1111014-A (GB)
Title: Improvements relating to cationic monoazo dyestuffs and to monoazo dyestuffs formed as intermediate products in their production,and the use of both
IPC: C09B41/00
Filed: 1966-07-06
Abstract: The invention comprises monoazo dyes of formula <FORM:1111014/C4-C5/1> wherein R11 is an alkyl, hydroxyalkyl, alkoxyalkyl or cyclohexyl group or a phenyl group which may be substituted by halogen atoms or alkyl, alkoxy, alkysulphonyl or nitro groups, R2 is alkyl, phenyl or carbamoyl, R3 is hydrogen, alkyl or phenyl, R4 is hydrogen, alkyl or cyanoalkyl, R5 is an optionally cyano-, carbamoyl- or alkoxycarbonyl-substituted alkyl group or an aralkyl group, X is an anion and the ring A may contain halogen, alkyl or alkoxy substituents.  The invention also comprises the intermediate monoazo dyes prepared by coupling a diazotized 5-amino-pyrazole with an indole and of formula <FORM:1111014/C4-C5/2> The cationic dyes are prepared by quaternation of these intermediate dyes with appropriate agents and may exist in three mesomeric forms. The dyes yield orange shades on cellulose acetate and polyester fibres (unquaternated dyes) and on polyacrylonitrile fibres (cationic dyes).
Patent GB-1396002-A (GB)
Title: Stressed gutter assembly for roofing structures
IPC: E04D13/064
Filed: 1972-06-28
Abstract: 1396002 Guttering D M K MARENDAZ 28 June 1972 30368/72 Headings E1B and E1W A channel section gutter formed as a load bearing member has at least one wall 4 extended at 7 for securing to roofing members 6. The gutters are supported on stanchions 2 of a multi bay factory building. The flanges 7 may be extended and turned back on themselves to define trunking. The roofing members may be welded, bolted or rivetted to the flange 7 or attached by mild steel strips 8. Insulating members may be supported on or beneath the roofing members 6.