baber/WOPTO huggingface dataset:
Patent GB-1135043-A (GB)
Title: Improvements in or relating to resetting switches for integrators
Inventor: MCFADDEN MAURICE HENRY
IPC: G06G7/186
Filed: 1965-07-06
Abstract: 1,135,043. Integrators. SHORT BROS. & HARLAND Ltd. 20 Sept., 1966 [6 July, 1965], No. 28632/65. Heading G4G. [Also in Division H3] In an integrator (Fig. 4), a signal V in  to be integrated is applied to operational amplifier B with feedback over capacitor C to produce an integrand output, and an initial condition voltage V ic  is applied over resistance R to the input of differential amplifier A with high input and low input impedance, and over a further resistance R to the integrand output, while the output of amplifier A energizes a diagonal of a diode switching bridge D 1  to D 4  returned to the input of B, and connected to the second input of differential amplifier A. Switching signals TA TB are applied to the remaining diagonal of the switching bridge which is also connected over resistances R s  to Œ bias voltage sources, and for TA+, TB- the diode bridge is non- conducting to permit normal integration and for TA-, TB+ it is conducting to permit the integrator to be set to an initial condition signal level. The amplifier A may comprise (Fig. 5, not shown) a pair of insulated gate field effect transistors emitter coupled to a pair of normal transistors followed by an emitter follower or (Fig. 6) insulated gate field effect transistors T1, T2 in circuit with a constant current tail transistor T3 whose base is energized from a zero adjustment potentiometer VR1 energized in series with a diode-D1 having a common heat sink with T3, to reduce temperature drift. Transistors T1, T2 are protected against breakdown due to excessive input voltage by diode clamps D2, D3, D4, D5, and the subsequent stages are conventional transistor amplifiers terminating in emitter follower T7.
Patent GB-926363-A (GB)
Title: Three-phase a.c. electric circuit-breaker
IPC: H01H33/75
Filed: 1959-08-21
Abstract: 926,363. Fluid-blast switches. FABRIEK VAN ELECTRISCHE APPARATEN VOORHEEN F. HAZEMEIJER & CO. N.V. Aug. 21, 1959 [June 30, 1959], No. 28667/59. Class 38 (5). In a three-phase fluid-blast switch in which the current-carrying conductors form three parallel loops, each including a longitudinally movable contact 3 and a fixed contact 4 housed in a laterally-vented arc-control device 5, the vent 6 of the arc-control device associated with the middle loop lies in the plane of the loop and the vents of the devices associated with the outer loops diverge with respect to the vent of the device associated with the middle loop. The vents are positioned in the directions of the resultants of the electrodynamic forces produced by the loops, so that the arcs are correctly positioned across the vents. Each loop may include two pairs of contacts with associated arc control devices as shown. Formulae are given for calculating the angle of divergence and the widths of the vents.
Patent GB-187625-A (GB)
Title: Improvements in and relating to dynamos for the lighting of vehicles
IPC: B61D43/00
Filed: 1922-10-21
Abstract: 187,625. Dick, E. Oct. 21, 1921, [Convention date]. Dynamos, driving; dynamos, mounting on vehicles; casings.-A lighting dynamo driven by a belt from a vehicle axle is suspended from the bogie or chassis, and the transmission gear is mounted on the driving side of the dvnamo. The belt is tensioned by the weight of the dynamo, and an additional spring may be employed. The pulley 6 is mounted on a shaft 10 rotating in bearings 7, which may be self-aligning ball bearings, and carries a pinion 8 which has helical or double helical teeth and engages with a pinion 9 on the generator shaft 13. The gearing is enclosed by a two-part cover 11, 12 which is filled with lubricant. A protecting wall 15 is cast with the cover 12 to enclose the inner flange of the pulley 6. The shaft 10 is located in such a position that the line joining its centre with the centre of the shaft 13 forms an angle of about 90‹ with the line passing through the centres of the shaft 13 and the supporting shaft 3.
Patent GB-364624-A (GB)
Title: A process for the continuous production of nitro-pentaerythrite
IPC: C06B25/32
Filed: 1930-09-25
Abstract: <PICT:0364624/IV/1> Equivalent quantities of pentaerythrite dissolved in sulphuric acid and nitric acid are continuously reacted by adding them through pipes 1, 2 into an apparatus 3 provided with a jacket 6 and stirring mechanism 4 whilst maintaining a definite temperature. Nitric acid fumes are exhausted by way of pipe 9 and the nitropentaerythrite with the waste acid are continuously withdrawn by way of pipe 8.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the production in a similar manner of tetranitromethylaniline and styphnic acid (trinitroresorcin). This subject-matter does not appear in the Specification as accepted.
Patent GB-226192-A (GB)
Title: Electric coupling with switching devices
IPC: F16D48/06
Filed: 1924-12-01
Abstract: 226,192. Raduner & Co. Akt.-Ges. Dec. 11, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Reversing-gearing.-A coupling for transmitting motion in either direction to a shaft 1 comprises two oppositely rotating rings 2, 3 mounted on the shaft, each ring being provided with electromagnets 13, 14 acting on discs 10, 10<1> which are connected by means of springs to sleeves 7, 8 fixed to the shaft. The electromagnet coils are connected to insulated slip-rings 21, 22 and 21<1>, 22<1> on hubs 4, 5 of the rotating rings. When current is supplied to the coils 13, the disc 10 is attracted and the shaft rotates with the ring 2; by switching the current through the coils 14, the shaft is rotated by the ring 3 in the opposite direction. In a modification, the discs 10, 10<1> are formed integral with the sleeves 7, 8 which may be arranged to slide longitudinally on the shaft against the action of springs.
Patent GB-764977-A (GB)
Title: Improvements in or relating to torque indicating or measuring apparatus
Inventor: BARSKE ULRICH MAX WILLI
IPC: G01L3/14
Filed: 1954-10-06
Abstract: 764,977. Dynamometers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 30, 1955 [Oct. 6, 1954], No. 28757/54. Class 106 (2). A dynamometer for measuring the torque transmitted by a shaft 11, 12 comprises two input wheels 14, 15 fast on or driven by the spaced portions 11, 12 of the shaft and meshing respectively with two sun-wheels 18, 19 mounted coaxially for independent movement in a fixed carrier 16, in turn meshing respectively with the two parts 21 22 of a double planet-wheel having a carrier 20 angularly movable about the axis of the sun-wheels, the gear ratio from both input wheels 14, 15 to the corresponding part 21, 22 of the planet-wheel being unity so that motion is transmitted to the carrier 20, and to the attached pointer 24 when, and only when, relative motion of the spaced portions of the shaft takes place. As shown, the transmitting shaft comprises two axially spaced portions 11, 12 not twisting appreciably under normal loading which are joined by an intermediate torsion portion 13 capable of appreciable twist. Alternatively, the mechanism can be applied to an existing shaft by locating it to one side thereof and coupling it thereto at spaced points by gears mounted thereon and meshing with the input wheels 14, 15.
Patent GB-360135-A (GB)
Title: Improvements in and relating to artificial marble and methods of producing same
IPC: C04B28/02
Filed: 1930-09-26
Abstract: Artificial marble is made by moulding a composition comprising a large proportion of large pieces of calcareous material, e.g. stalactites, stalagmites, or calcareous concretions, a smaller proportion of small pieces, and a small proportion of cement, e.g. Portland or Bauxite.  The internal structure of the mass is employed as the visible surface, e.g. by sawing the mass into plates.  A solution of fluosilicate of magnesium may be used as the gauging water and as a bath to harden the sawn and polished plates.  In an example, a composition comprising 900 litres of pieces of calcareous concretion of sizes from 2 cm. to 15 cm., 300 litres of grains of the same material of sizes from 1 mm. to 10 mm., 350 kgs. of bauxite cement, 180 litres of water, and 5 to 10 kgs. of colouring matter, is moulded in blocks which are sawn up into plates.
Patent GB-1391514-A (GB)
Title: Quantitative detection system adapted to detect a component of a motor exhaust gas
IPC: F02D33/00
Filed: 1972-06-20
Abstract: 1391514 Regulating I C engine fuel injection; controlling ignition timing REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 20 June 1972 [22 June 1971]  28886/72 Heading F1B [Also in Divisions G1 and G3] For making a measurement of a component of engine exhaust gas (for use in a fuel injection or ignition control system) a sample of exhaust gas is taken off in pipe 3 and tangentially enters a chamber 4 where it may be mixed with additional air 8 before passing to identical chambers 9, 10 (cooled by a water jacket 14) between which are arranged thermocouples 11, one junction of each of which is associated (in one chamber) with a catalytic coating at which an exothermic reaction takes place with the measured constituent. For control, the thermocouple voltage is amplified at 19 and fed via an analogue to digital converter 20 to computer 21, which adjusts the ignition timing or fuel injection at injectors 24 in response to this and other engine parameters 22 e.g. intake pressure, air temperature or engine speed. In the example given, carbon monoxide in the exhaust reacts with oxygen in the air from 8, the catalyst comprising an active porous alumina layer supporting a low percentage of platinum and oxidization promoters of manganese, iron, nickel or cobalt. The thermocouples may be of lead telluride "activated" by lead iodide or sodium.
Patent GB-878781-A (GB)
Title: Improvements in and relating to impact fuzes for projectiles
IPC: C23C28/02
Filed: 1958-09-09
Abstract: 878,781. Projectile fuzes. VERWALTUNGSGESELLSCHAFT DER WERKZEUGMASCHINENFABRIK OERLIKON. Sept. 9, 1958 [Sept. 30, 1957], No. 28897(58. Addition to 727,493. Class 9(1). An impact-operated fuze in which arming occurs when a fusible element has melted as in the parent Specification is provided with a protective layer of gold over the surface of the element. If the fusible element is made of an alloy containing cadmium, to prevent the growth of crystals, a layer of silver is applied before gilding.
Patent GB-278542-A (GB)
Title: Hoisting, conveying and storage systems
IPC: E04H6/18
Filed: 1926-11-16
Abstract: 278,542. Schraeder, F. J., and Novander, G. Nov. 16, 1926. Traversers.-A storage building or garage is provided with multifloors, elevators, storage cells and travelling means to transfer cars from the elevators to the cells and vice versa. The building 10 is shown provided with elevators 15, travelling platforms 17 on each floor and storage cells 11, 14. The travelling platforms are divided into storage spaces 25 intermediate of the two transversely disposed endless conveyers 21 disposed at the ends and operated by sprocket gear 22 from a shaft 71, clutches 72, 73 being provided to engage or disengage each conveyer. The shaft 71 on the travelling platform is rotated through gearing from a reversible motor 55 which also drives the cross shaft 18 through a clutch 62, 63 for traversing the platform on the rails 16, so that any part of the platform may be brought opposite any elevator 15. The floors of the storage cells 11 are tiltable towards the conveyers to allow the cars to run on to the conveyers for removal and are worked by a crank 28 and sliding rod 31 operated from a sliding rack bar 79 on the travelling platform when the conveyer thereon is aligned with the floor. The sliding racks are under the control of clutches 81 on the driving shafts of the conveyers. The elevator floors can be tilted towards either travelling platform by means of cranks 38, 39 and sliding rods 41 which are actuated at the correct times by sliding racks 82 on the platforms operated from the shaft 83. Each elevator platform is also provided with two spring stops 44 against which the wheels of the vehicle rest, the spring setting allowing the stop at the entering end to be depressed by the vehicle on entering. As the platform is tilted the exit stop is definitely depressed through a crank 53 actuated by the sliding shaft 41, Fig. 5. All the controls are operated from the platforms through levers 68, cranks 66, and links 65. The platforms of the storage compartments 25 on the travelling platforms are also capable of being tilted towards the elevators. Reference has been directed by the Comptroller to Specifications 202,597, 226,064, [both in Class 20 (i), Buildings and structuers. Kinds &c. of], 236,616; and 247,815, [Class 78 (iv), Loading &c.].
Patent GB-878892-A (GB)
Title: Improvements relating to the treatment of bulked yarns
Inventor: LOMAX ROBERT
IPC: D02G1/02
Filed: 1958-09-09
Abstract: 878,892. Finishing yarns. T. M. M. (RESEARCH) Ltd. Sept. 7, 1959 [Sept. 9, 1958], No. 28935/58. Drawings to Specification. Class 120(3) A yarn which has been bulked e.g. by a falsetwist process, is continuously fed through a relaxing zone, as may be constituted by two pairs of nip rollers rotating at different peripheral speeds, so that component fibres or filaments are able to assume a coiled or looped formation, thence direct to a twisting zone, as may be constituted by a ring-twisting unit, so that it is subjected at the instant of its delivery from the relaxing zone e.g. at the nip of the second pair of rollers, to a twisting operation which binds the coils or loops so that they are retained when the yarn is subsequently tensioned. The yarn may be stretched between the bulking and relaxing stages. The final twist may be similar or opposite to the false-twist; yarns having the latter twist may be intertwisted in the same direction as the false-twist to form a balanced yarn. Specification 861,387 is referred to.
Patent GB-210145-A (GB)
Title: Improvements in and relating to systems of electric ship propulsion
IPC: H02P9/06
Filed: 1922-10-24
Abstract: 210,145. British Thomson-Houston Co., Ltd., and Haigh, F. A. Oct. 24, 1922. Dynamos and motors combined for transmitting power.-In a ship propulsion system comprising a number of separately driven series-connected direct-current generators and one or more motors, the excitation of each generator is controlled in accordance with its speed. Generators G, Fig. 1, and separately excited exciters A are driven by engines E, and the motor M is provided with a separately excited field-winding F for each generator G and if necessary with a separately excited field-winding. In the modification shown in Fig. 2 each generator G is provided with a shunt field-winding B and a separately excited field winding C.
Patent GB-429153-A (GB)
Title: Devices for purifying the air fed to an internal combustion engine
IPC: F02M35/06
Filed: 1934-10-10
Abstract: 429,153. Purifying charge. FUSIONMOTEURS, Boulevard GalliÚni, Malmaison, Rueil, France. Oct. 10, 1934, No. 29067. Convention date, Oct. 16, 1933. [Class 7 (ii)] [See also Groups II and XXVI] A filter 1 for the combustion air is mounted on the engine flywheel 2. The air passes between the spokes 6 of the flywheel to a chamber formed by an annular partition 16 fixed to the crank-case. The filter comprises sheets of fabric mounted on rings 21, which are held by springs 22 fixed to a detachable casing 13, the whole being retained by a nut 23 screwed on the main shaft. Dust is first separated from the air by drawing it through radial passages 3, 12 as indicated by the arrows. The passages 3 are formed by grooves in the flywheel and a detachable plate 9 having vanes forming the passages 12 ; the casing 13, which may contain a liquid or pasty material, e.g. oil, to encourage adhesion of the dust, is removable for cleaning as described above. The filter may be of frusto-conical or corrugated shape, or provided with radial or annular pleats. Cooling cylinders.-Vanes 5 on the flywheel draw air through the radiator 4.
Patent GB-285567-A (GB)
Title: Improvements in or relating to apparatus for use in making and repairing roads and the like
IPC: C10C3/12
Filed: 1926-11-17
Abstract: 285,567. Johnston, J. M. T. Nov. 17, 1926. Cauldrons. - Relates to heaters for bitumen, pitch, asphalt, and the like, of the kind described in Specifications 192,458 and '250,125, in which the solid material is melted on a gridlike heating surface and flows therefrom into the cauldron proper. According to the present invention, the grid-like melting surface is constituted by a furnace crown 12 and a plurality of internally-heated tubes 18 flanking the crown and extending horizontally parallel to the sides thereof. Downwardly-sloping baffles 22 extend from the sides of the cauldron towards the sides of the tubes 18. The side walls of the cauldron and furnace are formed of a single sheet of metal bent W-shaped with the angles rounded. For heating stone chippings, a tray 24 is removably supported in the upper part of the cauldron.
Patent GB-304852-A (GB)
Title: Improvements in and relating to laminated springs
IPC: F16F1/24
Filed: 1927-11-01
Abstract: 304,852. Smith, H. P. Nov. 1, 1927. Laminated springs.- Thin plates 1 interposed between the leaves 4 of a laminated spring are provided with longitudinal slots 2 fitted with lubricant-absorbing pads 3 which are thicker than the plates, whereby the pads are squeezed during the action of the spring to express the lubricant and provide a damping effect. Upturned lugs 5 at the ends of the plates engage the sides of the leaves. The leaves may be clamped at the centre by a bolt 6, Fig. 10, or by a stirrup 8, Fig. 9, formed with a hole 9 at the upper end of each arm, which holes receive the hooked ends 12 of a spring slip 10. The plates 1 may be centrally divided so as to allow longitudinal adjustment. As shown in Fig. 10, each divided plate has a central slot 15 through which the centre bolt 6 passes, the halves of the plate having overlapping portions 17, 18.
Patent GB-603883-A (GB)
Title: Improvements in or relating to electrical ring modulators
IPC: H03C1/58
Filed: 1945-11-02
Abstract: 603,883. Impedance networks. COMPAGNIE GENERALE D'ELECTRICITE. Nov. 2, 1945, No. 29179. Convention date, July 26, 1944. [Class 40 (viii)] [Also in Group XL (c)] In a ring modulator having modulation input terminals 1, 2, shunted by a resistance R, output terminals 3, 4 and carrier input terminals 5, 6, condensers C1, C2 are added to form a lowpass filter with the leakage inductances L1, L2 of the transformer T1, in order that the impedance presented by the transformer at terminals A, B may be substantially constant. The cut-off frequency of the filter is made to lie outside the working range of frequencies that the discontinuity in the impedance at that frequency may be avoided.
Patent GB-881577-A (GB)
Title: Improvements in buckles for automobile safety belts and the like
IPC: A44B11/25
Filed: 1960-08-24
Abstract: 881,577. Buckles. LINDBLAD, S. M. Aug. 24, 1960 [Aug. 27, 1959], No. 29233/60. Class 43. A safety belt buckle comprises two fastening members 1, 2 each attached to one part 9 or 10 of the belt and adapted to be detachably interconnected, one of the members being provided with means for adjusting the effective length of the belt comprising an adjustment roller 11 rotatably mounted in a slot shaped opening 12 in a flat portion of the fastening member, one part of the belt being placed around the roller in such a manner that when the belt part is under tension the roller is displaced towards a bar 15 which delimits the opening at one side thereof, so that the end portion of the belt part which passes from the roller over the bar is clamped between the roller and that edge of the bar which faces the opening characterized in that a clamping member, a plate portion 14, is rigidly connected with the adjustment roller in substantially tangential relation thereto and extends over the bar, so that when the belt part placed over the clamping member is subjected to tension the end portion of the belt placed between the clamping member and the bar is clamped also between the clamping member and the bar. The fastening member 1 has side flanges 1a and a slot 1b to which one end of the belt is secured. The fastening member 2 has a flap 5 pivoted on a pin 4 mounted in side portions 3 and two hooks 6 on the flap urged by a spring 8 into engagement with apertures 7 in the fastening member 1 to secure the two members together. A pin 13 slidable in notches in the side portions 3 and in an opening 12 in the base of the fastening member 2 pivotally mounts the roller 11. One end of the plate portion 14 is bent round the pin 13 to form the roller 11. The plate has lateral projections to limit the movement of the roller in the opening 12.
Patent GB-899875-A (GB)
Title: Improvements in and relating to sliding-clasp fasteners
IPC: A44B19/16
Filed: 1958-09-12
Abstract: 899,875. Sliding-clasp fasteners. LANDRICHTER, A., and LANDRICHTER, E., [trading as ZELZER & CO. O.H.G.]. Sept. 12, 1958 [Sept. 12, 1957], No. 29363/58. Class 44. A sliding clasp fastener for interconnecting the edges of two sheets of flexible material comprises two elongated mating members 1, 2 of identical cross-sectional shape and of resiliently deformable material, e.g. synthetic plastic, each member being connected to a stringer band 3 or 4 and having at least one lip 5 or 6 for engagement with the lip on the other member and having a locking strip 7 or 8 projecting beyond the lip thereon, the locking strip having a free edge 13 or 14 adapted to engage in a recess 11 or 12 in the other member at a position spaced from the abutting surfaces of the lips in the direction of the outer edge of the stringer band which is connected to the other member. In another embodiment, Fig. 3 (not shown), the members are each provided with two lips and with a locking strip having two lugs for engaging grooves in the other member. The members are formed integrally with the stringer bands. The members may be formed with slots extending transversely of the members to increase the flexibility thereof. The lips may also be slotted.