baber/WOPTO huggingface dataset:
Patent GB-104391-A (GB)
Title: Improvements in or relating to Voltage Regulating Systems for Electrical Circuits.
Inventor: GILLMOR REGINALD EVERETT
IPC: H02J7/22
Filed: 1916-03-03
Abstract: 104,391. Gillmor, R. E., (Sperry Gyroscope Co.). March 3, 1916. Exciting; dynamos, regulating.-In an intermittent-contact voltage-regulating system a counter electro-motive force is applied to the main or auxiliary field of a dynamo-electric machine, thereby tending to cause intermittent reversal of the current in the winding. The arrangement is shown applied to a trainlighting system with a variable voltage generator and a booster, the field of the booster being regulated to keep the voltage on the mains constant. The generator 1, driven from the car axle, has a field coil 2 and the booster 3 has two field coils 4, 5 with a resistance 16 connected between them. Reversing-switches 6, 7 are provided so that the current through the battery 8 shall not be reversed when the car is reversed. The resistance 16 is connected to the terminals 19, 20 of a vibratory regulator with a voltage coil 17, and a current coil 26 may be connected in parallel with an adjustable resistance 27, so that its action opposes that of the soil 17. The regulator blade 18 is connected to the return lead y of the system. When the lamp voltage is low the blade 18 touches the contact 20 and the exciting-current flowing through the coil 5 divides at the point 25, a part going through the resistance 16 and coil 4, while the other part goes through the blade 18 to the return lead y. When the lamp voltage is high, the blade 18 is lifted to touch the contact 19, putting the resistance 16 in series with the coil 5 and completing a circuit for the coil 4 to the return conductor of the generator 1 thereby introducing an electromotive force to oppose the current flowing in the coil. The current in the coil 4 mav even be reversed and reverse the electromotive force of the machine 3. In a modification the main generator is driven from the engine and a booster on each car is driven by an electric motor. A double-throw switch 62 may be connected as shown in Fig. 3, so that the resistance 16 may be short-circuited and the coils 4, 5 connected in series. In a further modification the two machines 1, 3 are combined into one machine as shown in Fig. 4. The main brushes 32 are connected to the mains and to the main field coil. The auxiliary field coils 4', 5<1> with the resistance 16<1> between them are connected across one brush 32 and the auxiliary brush 31.
Patent GB-233429-A (GB)
Title: Improvements in or connected with lateral interlock of parts and in or connected with devices or structures comprising provision for lateral interlock
IPC: F17B1/00
Filed: 1924-02-08
Abstract: 233,429. Barrowfield Iron Works, Ltd., and Chambers, R. L. Feb. 8. 1924. Brackets.-The opposing faces of two members which are to be adjustably secured together, such as a bracket D for guide rollers of gas holders and a bedplate C, are provided with complementary projections and recesses adapted to interlock and resist lateral displacement in all directions while permitting lateral adjustment in more than one direction. Each opposing face is formed with end areas 3 of parallel ridges and an intermediate area 4 of ridges at right-angles to the others, with a clearance space 5 between the area 4 and each of the areas 3. In a modification, one face is provided with isolated projections and the other face with complementary isolated recesses, while in another modification one face is provided with projections formed by two series of ridges intersecting at right-angles and occupying the whole area, the other face being formed with recesses complementary to the projections. A saddle piece G, Fig. 11, may be interposed between the opposing faces. According to the Provisional Specification, the ridges may be curved or zig-zag, and opposing faces may be formed with interlocking projections, or ridges may be formed on one face and isolated projections on the other face.
Patent GB-567710-A (GB)
Title: Improvements in and relating to pitch controlling means for aeronautical propellers
IPC: B64C11/42
Filed: 1943-03-01
Abstract: 567,710. Fluid-pressure servomotor-control systems. HOOVER, W. S. March 1, 1943, No. 3328. [Class 135] In means for varying propeller pitch in order to maintain the driving engine speed constant, the propeller hub carries a pitchchanging motor, a pump supplying said motor, and a governor controlling the pump, and means are provided for controlling the action to prevent hunting and for driving the pump independently to change the pitch when desired with the driving engine stopped. The pump comprises a sleeve 40, Figs. 1 and 3, slidably keyed to the propeller hub 24 so as to rotate within members 42, 44, normally held from rotation by a gear 98. The sleeve 40 has vanes 68, 70 contacting the inner elliptical periphery of the member 42 and is provided with internal grooves 58, 60, 62. When the governor weights 46 move in response to a change in propeller speed, the members 40, 42, 44 are thereby moved axially in one direction or the other, to connect the pump delivery groove 60 with one or the other of the grooves 130, 132 in the hub, and one or the other groove 58, 62 with the other of the grooves 130, 132. Liquid is thereby drawn from a reservoir 152, and supplied to the motor 34 which effects a pitch change through reducing gear 38 and a gear 32. When the driving engine is stopped, the pump may bedriven by rotating the gear 98 from a motor 99. The means for preventing hunting comprises a member 156 fixed to the hub and provided with fluid manifolds 166, 168, a groove 162 divided by vanes 170, 172, Fig. 9, and a reservoir 164. A member 174 carrying vanes 176, 178 is fixed to the gear 32, so that when the latter is operated, liquid is forced to the reservoir 164 through a restriction 222 or 238. If due to rapid operation, the flow tends to be greater than the restriction can accommodate, the pressure generated acts on a piston 186 to move a sleeve 192 to throttle the flow from the groove 60 to the motor 34, the degree of throttling increasing as the pitch assumes the necessary condition. The propeller blades may be locked in the adjusted position by a device including a cam 228 held against rotation by balls 232 until released by the motor 34 being set into motion.
Patent GB-432718-A (GB)
Title: Improvements in and relating to high pressure gas cylinders
IPC: F17C1/00
Filed: 1934-02-01
Abstract: 432,718. Gas - storage cylinders. TREVORROW, J. H. L., and CHESTERFIELD TUBE CO., Ltd., Tube Works, Derby Road, Chesterfield, Derbyshire. Feb. 1, 1934, No. 3368. [Class 8 (ii)] [See also Group XXII] In a gas-storage cylinder A the side walls F are increased gradually in thickness over the lowest eighth of their length to about three times their normal thickness and the base H is of the same thickness and is recessed by being subjected to end pressure by a die, the side walls being held to prevent bulging. The blank prior to recessing the end is obtained by first driving a plunger of circular cross section into a red hot billet and subjecting the resulting cup shaped blank to hot drawing, and after pickling and heat treatment, to cold drawing over a tapered mandrel. Both drawing operations are carried out in a thrust plunger machine.
Patent GB-963976-A (GB)
Title: Insulated coils
Inventor: WOOD HAROLD
IPC: H01F41/12
Filed: 1961-01-30
Abstract: A coil is made by winding P.T.F.E.-bonded-glass insulated wire in helical layers on a former, vacuum impregnating at least once with a dispersion containing P.T.F.E. containing some micromica of particle size 3-5 microns to prevent coagulation and drying in an oven, surrounding in a mould in P.T.F.E. powder, compacting under heavy pressure, and sintering in a furnace.  Specification 963,975 is referred to.
Patent GB-778057-A (GB)
Title: Method of producing pig iron or ferrous alloys in a blast furnace
IPC: C21B5/00
Filed: 1953-02-06
Abstract: A process of reducing iron ores in a blast furnace comprises increasing the heat available at the normal tuyere level and injecting at the critical zone an oxygen reformed hydrocarbon material at a temperature above the critical temperature.  The oxygen reformed hydrocarbon material may be obtained by partial combustion of a liquid or gaseous hydrocarbon to produce a mixture of hydrogen and carbon monoxide.  The temperature obtained by this reaction is higher than the critical temperature and may be controlled by the addition of steam to produce an injection temperature of 1350-1600 DEG C.  The additional heat at the normal tuyere level may be obtained by using an oxygen enriched blast and the furnace may be operated with a top pressure of up to 2.5 atmospheres.  The process may also be used in the manufacture of ferro alloys.  It is stated that a considerable reduction in coke consumption is obtained.
Patent GB-212057-A (GB)
Title: Improvements in air cushions or seats, beds, settees and the like
IPC: A47C27/08
Filed: 1923-02-06
Abstract: 212,057. Morley, H. Feb. 6, 1923. Mattresses a n d cushions. - A mattress, cushion or the like comprises an assemblage of independent air bags rectangular in plan and arranged in rows, side by side, as shown in Fig. 2. The bags a which may taper in section to form a sloping top are assembled within an outer cover d provided with eyelets c and buttons d oppositely arranged and having hooked stems connected by elastic bands.
Patent GB-303289-A (GB)
Title: Improvements in appliances for the practising of games
IPC: A63B69/00
Filed: 1928-02-06
Abstract: 303,289. Lucas, S. Feb. 6, 1928. Measuring the force of a blow. - In a device for indicating the strength of a golf stroke, of the kind comprising a ball tethered to a spring- controlled pulley, the pulley is connected to one end of a coil spring, the other end of which is connected to a plate that can be free of a fixed casing or can be be locked thereto in any desired angular position to adjust the initial tension of the spring. As shown, a pulley 4 carrying a tethering cord for a golf ball is mounted for rotation within a casing 3 and about a horizontal spindle 10. The outer end of a coil spring is connected to the pullev while the inner end is connected through a bush 7 to a plate 18 that is adjustable angularly of the casing and is held in adjusted position by a spring-pressed pin 16 engaging one of a series of holes 17 spaced around the plate. A ratchet wheel 27 on the pulley co-operates with a gravity pawl 24 to hold the pulley in the position to which it is rotated by the momentum of the driven ball. Windows 20, 21 are provided for reading graduated scales on the edges of the pulleys 3 and plate 18, respectively. The pulley may be rotated by a handle 11, that is freely mounted on the spindle 10 and provided with teeth 14 that may be pressed into engagement with pegs on the bush 8 of the pulley. The casing 3 is mounted on bearings 2 for rotation about a vertical axis, and is provided with an index co-operating with a scale on the base 1 to indicate the direction in which the ball is struck.
Patent GB-839540-A (GB)
Title: Improvements in or relating to servo-action locking devices for vehicles
IPC: B60T1/00
Filed: 1959-02-02
Abstract: 839,540. Vehicle transmission brake locks. REGIE NATIONALE DES USINES RENAULT. Feb. 2, 1959 [Feb. 6, 1958], No. 3610/59. Class 103 (1). A locking device for vehicles of the kind in which a roller or the like 5 is adapted to be. engaged in notches 1a in a disc 1 rotatable with the vehicle transmission or wheels, comprises a lever 3 in which the roller 5 is mounted, which is adapted to be moved against a spring 7 by a link 9 connected to a diaphragm 11, 12, 13 the upper face of which is subject to the vehicle engine manifold pressure. The manifold is connected to line 15 and exhausts through a restrictor 17 past a non-return valve, the pressure in the chamber above the diaphragm being controlled by the opening or closing of a valve 19, 20 governing an aperture to atmosphere. The locking device is thus normally controlled by valve 19 but in the event of it being necessary to release the brake, when the engine is not running, this may be done through a cable 21 connected to the end of the lever at 22.
Patent GB-950327-A (GB)
Title: New anthraquinone and polycyclic vat dyestuffs
Inventor: GAMLEN GEORGE ALBERT
IPC: C09B62/024
Filed: 1961-02-01
Abstract: The invention comprises dyes of the anthraquinone or polycyclic vat series which are free from sulphonic acid and carboxylic acid groups and which contain attached to a carbon atom at least one <FORM:0950327/C3/1> group where Y is hydrogen or a substituted or unsubstituted alkyl radical or a cycloalkyl radical and Z is a heterocyclic ring comprising only carbon and nitrogen atoms in the ring which contains at least one- <FORM:0950327/C3/2> group and is attached to A through a carbon atom of the ring and which carries at least one group of the formula <FORM:0950327/C3/3> where R1 and R2 are each methyl and R3 is a substituted or unsubstituted aliphatic radical or at least two of R1, R2 and R3 are joined or fused together to form with the nitrogen atom a heterocyclic ring or rings wherein the nitrogen atom is linked to carbon atoms present in said ring or rings through single bonds or through a single bond and a double bond, each of the quaternary groups being directly attached to a carbon atom of the heterocyclic ring.  The dyes are made by condensing an anthraquinone or a polycyclic vat dye containing at least one -NHY group with a heterocyclic compound containing at least one <FORM:0950327/C3/4> group and which contains at least two halogen atoms or labile groups, and condensing the product with an amine of the formula <FORM:0950327/C3/5> Examples are given.  The Provisional Specification also refers to dyes of the anthraquinone or polycyclic vat series in which the group Z above is attached via an oxygen atom but no details are given.
Patent GB-193265-A (GB)
Title: Improvements in gas cooking stoves and like heaters
IPC: F24C3/02
Filed: 1922-02-09
Abstract: 193,265. Waite, G., and Gassaver Cooker Co., Ltd. Feb. 9, 1922. Addition to 155,879. Gas cooking-stoves; heat-distributors; supports for articles to be heated.-To enable a single utensil to be heated on the stove described in the parent. Specification, the platform d is provided with an extension l on which the gas-ring c may be slid, a grid m hinged at n supporting the utensil above it.
Patent GB-1503194-A (GB)
Title: Printing apparatus
IPC: B41K3/68
Filed: 1975-01-29
Abstract: 1503194 Controlling operation of printing machine W & T AVERY Ltd 22 Jan 1976 [29 Jan 1975] 3857/75 Heading B6C In a printing machine in which a web is fed through first and second printing stations to a cutter under the control of suitable sequencing circuitry provision is made for the feeding of a length of web to a reject station while the first station is printing on a following length. The invention is particularly applicable to a label printer Fig. 2 where station 30 prints fixed information, e.g. nature of a commodity, and station 34 prints selective information, e.g. weights and prices on labels, Fig. 1 (not shown) which are severed from the web by guillotine 36 and applied to the commodities. When a particular condition is reached, e.g. when plates are changed on printer 30, on exhaustion of the web or malfunction or alternatively, when the apparatus is switched on after a period of inactivity, a clearing device is operated, preferably by manual push-button. In these circumstances paper feed unit 26 and first printer 30 are operational, but second printer 34 and guillotine 36 are inactivated; the continuous label web passes through shoot (80), Fig. 5 (not shown), and out of the apparatus at (106). At the end of this cycle, e.g. after the equivalent of five labels have been rejected the guillotine 36 severs the web, and normal operation resumes.
Patent GB-433205-A (GB)
Title: Improvements in the degumming and mechanical treatment of vegetable fibres in preparation for spinning
IPC: D01C1/02
Filed: 1934-02-06
Abstract: 433,205. Degumming ramie, sisal, hemp, &c. in preparation for spinning. GAGE, C. E., 7, Rupert Road, Bedford Park, London. Feb. 6, 1934, No. 3874. [Class 120 (i)] The plant stalks or semi-prepared fibres are submitted successively to maceration, to treatment with a solution in water of caustic soda, linseed oil, turpentine and ammonia in the proportions of 5, 3, 3 and 4 per cent by weight and at a temperature between 160-190‹ F., to treatment with a solution in water of common soap (3 per cent) and linseed oil (3 per cent) at not less than 120‹ F., to neutralization in hydrochloric acid and, after drying, to treatment in a softening machine comprising relatively reciprocating plates.
Patent GB-621247-A (GB)
Title: Improvements relating to electrical switch contacts
IPC: H01H1/06
Filed: 1947-02-10
Abstract: 621,247. Snap-action switches; switch contacts. FIRST INDUSTRIAL CORPORATION. Feb. 10, 1947, No. 3881. Convention date, Feb. 11. 1946. [Class 38(v)] Each surface of a contact 18, 19, of, for example, a micro-switch, is formed with a number of continuous ribs 33 of substantially equal height and arranged parallel to the blade spring 20 carrying the contact. When moved into engagement with either of the fixed contacts 13, 14, the contact 18, 19, slides through a distance A, Fig. 3, due to vibration of the blade 20, this sliding movement serving to clear the contacts. The contact surfaces may be generally convex so that only a few of the ribs engage the co-operating contact, Fig. 4a (not shown), or the fixed contacts may be ribbed, Fig. 5 (not shown).
Patent GB-963351-A (GB)
Title: Method of starting a steam power plant
IPC: F01K3/22
Filed: 1963-01-30
Abstract: 963,351. Starting forced flow steam boilers; feedwater heating. SULZER FRERES S.A. Jan. 30, 1963 [Jan. 30, 1962], No. 3894/63. Heading F4A. A steam power plant comprising a oncethrough boiler supplying steam to a turbine is started up by supplying water heated in a feedwater tank by external steam, separating the steam-water mixture issuing from the evaporator, passing the steam to a superheater and some at least of the separated water to the condenser through a heat exchanger disposed between the condenser and the feed tank. In the form shown the boiler has an economizer 2, an evaporator 3, a preliminary superheater 4, final superheaters 5, 6 and a reheater 7. The superheaters 4, 5 are connected by a pipe 8 in which is a valve 12 serving as a by-pass valve for a separator 10. The boiler supplies steam to a turbine 14, 17 exhausting to a condenser 19 from which a pump 20 delivers condensate through bled-steam heaters 22, 23 and a heatexchanger 30 to a feed tank 24 having an external steam supply 25. The boiler feed pump 26a delivers water from the tank through high pressure heaters 27, 28 to the boiler. During starting, the valve 12 is closed and steam is supplied to the feedwater tank through the line 25. Hot feedwater is pumped through the boiler sections 2 . . . 4 into the separator 10. Steam flows therefrom through the superheaters 5, 6 to the turbines whilst water flows through a pipe 29 to the heat-exchanger 30 and thence to the condenser.
Patent GB-616354-A (GB)
Title: Improvements in tie-wires and spring assemblies
IPC: A47C23/053
Filed: 1946-02-07
Abstract: 616,354. Spring upholstery. PULLMAN SPRING-FILLED CO., Ltd., and SMITH, J. Feb. 7, 1946, No. 3903. [Class 52 (iv)] A tie wire for furniture springs comprises a length of wire 3 bent at intervals to form U- shaped projections 5, 6, 7 the centre projection 6 being inserted between the overlapping end coils of juxtaposed springs 1, 2 and overlapping one end coil 2 in a direction radially outwards, the outer projections 5, 7, overlapping the same coil in an inwards direction while the intermediate parts 8, 9 of the tie wire engage beneath the end turn 1 of the other spring.
Patent GB-840481-A (GB)
Title: Improvements in or relating to hoisting and discharging installations employing trucks with tipping tubs
IPC: B66B17/16
Filed: 1958-02-06
Abstract: 840,481. Tipping vehicles. SOC. TECHNIQUE POUR L'INDUSTRIE MINIERE. Feb. 6, 1958 [Feb. 6, 1957; Nov. 15, 1957], No. 3923/58. Class 78 (4). [Also in Group XXXII] A truck with a tipping body is emptied while still in the cage, by which it is hoisted, the tipping mechanism being mounted either on the cage or at the pit-head. As shown in Fig. 5, the body 21 of a truck in a cage 5 is tipped by engagement of a bracket 34 on the cylinder of an inverted hydraulic ram 30 pivoted to the cage at 33, with a tipping bar 24 on the truck body. The contents of the truck slide through side doors 23 operated by known lever means 26 on to a retractable shoot 12. Tipping is limited by engagement of a buffer 43 with a part of the cage. The oil reservoir and pump are carried on the cage, and the contacts to the electric driving-motor are actuated by the shoot 12 contacting the cage, so that the ram cannot be operated until both the cage and the shcot are in position. A locking finger 35 on the bracket 34 is operated by a fish-tail cam 38 engaging a roller 39 pivoted to the cage, and the ram is guided after disengagement with the truck by a spring buffer 41 and rollers 44 which engage behind cheeks 46 on the cage. The cage may comprise several decks, each fitted with a ram. In another embodiment, Fig. 7, the ram 54 is mounted piston uppermost at the pit-head and is brought into and from its working position as shown by an auxiliary ram 58. The lifting bracket and its locking finger 60 are mounted on the piston 59, the fish-tail cam 61 being operated by a roller 62 mounted on an extension 63 of the cylinder. With both embodiments locking devices (not shown) are provided to ensure that neither the ram nor the cage may be operated at an inopportune moment, and stops are provided to prevent longitudinal or tipping movement of the truck chassis.
Patent GB-1463554-A (GB)
Title: Tank
IPC: B65D90/04
Filed: 1974-01-28
Abstract: 1463554 Hopper construction VETRORESINA SpA 28 Jan 1974 [31 Jan 1973] 3931/74 Heading B8S [Also in Division E1] A hopper 1 having a flat external bottom is provided with an inclined internal false bottom 2 to direct the fluid or solid contents of the tank towards a discharge opening 3, the space between the false and external bottoms being filled by an expanded polyurethane. The hopper may be made of glass fibre and provided with fixing points 4 to receive supports 6, 7 for transportation purposes.
Patent GB-348073-A (GB)
Title: Turned shoes for sports purposes
IPC: A43B9/08
Filed: 1930-02-06
Abstract: 348,073. Boots &c. KELLNER, J. and SCHREIBER, D., (trading as KELLNER & SCHREIBER), 8, Ypenplatz, Vienna. Feb. 6, 1930, No. 3988. Convention date, Fob. 8, 1929. [Class 17 (ii).] Turnshoes.-A rubber soled turn-shoe for sports wear has a fabric upper a stitched at c to the edges of the sole b. The edge of the sole is then doubled over on itself and secured by cementing or vulcanizing with the seam c inside. The shoe is then turned and an insole inserted.
Patent GB-338080-A (GB)
Title: Apparatus for stunning animals to be slaughtered
IPC: A22B3/06
Filed: 1930-02-06
Abstract: 338,080. Pfretzschner Ges., A. Feb. 6, 1929, [Convention date]. Electric killing-appliances. - Apparatus for stunning animals to be slaughtered comprises a conveyer 1 on to which the animal is driven, railings 12 at each side of the conveyer, and hinged contact arms 4, 5 adapted to make contact with the back and the nose respectively of the animal. One of the arms may be provided with a sliding contact 7 which breaks the circuit when the forward movement of the animal has caused the arm to oscillate beyond a certain limit. In a modification, the arm 4 is replaced by two horizontal arms which bear against the flanks of the animal and in this case 3-phase current may be used. A rotary switch may be included in the circuit to give several repeated shocks. The contact arms may be provided with moistened pads to make better contact with the body of the animal.