baber/WOPTO huggingface dataset:
Patent GB-629409-A (GB)
Title: Improvements in and relating to precision magnetometers
IPC: G01R33/038
Filed: 1946-09-30
Abstract: 629,409. Magnetic tests and measurements. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 30, 1946, No. 29117. Convention date, Oct. 1, 1945. Addition to 629,270. [Class 37] The magnetometer in the parent case modified Fig. 1 in that the biassing spring 5 is adjusted to produce a negative suppressed zero torque with the pointer 3 prevented from giving a suppressed zero indication by a stop 8. The instrument shaft 2 is at right angles to the measurement field with the transversely magnetized rotor 1 at the end of the shaft 2 partially opposing the measurement field. The axis 9-9 of the latter is the zero magnetic torque line and if the stop 8 were removed the pointer 3 would swing to the zero spring torque and natural instrument zero line 7. In Fig. 1, the latter is - 30 degrees, angle " A," and the line of the pointer at its stop position + 50 degrees, angle " B," with respect to axis 9-9. It is explained in the Specification with reference to torque/deflection curves, Fig. 2 (not shown), that with the movement as arranged, Fig. 1, there is a wider scale distribution at' 4 than would be possible if the natural instrument zero coincided with the zero magnetic torque line 9-9. The Specification as open to inspection under Sect. 91 comprises also a construction of portable magnetometer, Figs. 3 and 4 (Cancelled) (not shown), with a movement as in Fig. 1 and specially devised for factory testing of small permanent magnets. This subject-matter does not appear in the Specification as accepted.
Patent GB-504786-A (GB)
Title: Improvements in photo-electric exposure meters
IPC: G01J1/04
Filed: 1937-10-25
Abstract: 504,786. Photo - electric exposure meters. TONNIES, H. F. Oct. 25, 1937, No. 29126. [Class 40 (iii)] Relates to photographic exposure meters having a number of measuring ranges, for adapting the instruments for use in either strong or weak light. According to the invention, in order to vary the measuring angle (i.e. the. angle of the cone of incident light) at the same time as the measuring range is changed, a photo-electric meter having a tubular chamber disposed in front of the photocell to determine one measuring angle is provided with a stop for reducing the measuring angle, the stop being in the form of a lid, displaceably mounted on the front end of the chamber, remote from the cell, and having one or more light apertures of reduced area in com. parison with that of the mouth of the chamber. Alternatively, the stop consists of a separable disc slidable within the chamber and similarly provided with one or more apertures of reduced area. Fig. 2 shows diagrammatically a form of the invention in which the stop is a lid 6 hinged at 7 to a tube 3 at one end of which a photo-electric cell 1 is mounted, a small aperture 2 surrounded by a short tube being formed in the lid. In Fig. 1 is shown a construction in which the stop is a disc 4 removably inserted in the tube 3, the small aperture 2 in the disc being surrounded by an upstanding tube. Various modified forms of the device are described and shown. For example, in the construction shown in Figs. 5 and 6, the stop is formed as the apertured lid 11 of a casing 10 enclosing the galvanometer connected to the photo-cell 1, and the tubular chamber in front of the cell is divided into compartments 8<1>. The lid is closed under conditions of bright illumination, and when a comparatively small measuring angle is required. 28 Is a "finder" built into the instrument. Lenses may be arranged above the compartments 8<1>, and the latter may be omitted whilst the lenses are provided. A lens may be provided in the aperture in the stop member, and in one con. struction, Fig. 12, in addition to this lens 20<1> there is a large lens 19 in the chamber 3, covering the cell 1. A light-absorbing disc 25 may be arranged as shown. Where necessary, the wall of the light aperture in the stop may be ribbed or otherwise treated to prevent direct reflection of sunlight on to the photo-electric cell. A "finder" may be mounted on the instrument, to indicate, by means of circles &o. in the field of vision the measuring angles that are available.
Patent GB-998036-A (GB)
Title: Well apparatus
IPC: E21B33/04
Filed: 1963-07-24
Abstract: 998,036. Wells &c. CAMERON IRON WORKS INC. July 24, 1963 [May 28, 1963], No. 29337/63. Drawings to Specification. Heading E1F. The subject matter of this Specification is indentical with that of Specification 998,037 but the claims are concerned with a slip assembly.
Patent GB-1278625-A (GB)
Title: A process of continuously casting a liquid metal
IPC: B22D11/11
Filed: 1969-06-10
Abstract: 1278625 Continuous casting NIPPON KOKAN KK 10 June 1969 [12 June 1968] 29475/69 Heading B3F [Also in Divisions C7 and F4] Inert gas, such as Ar or N 2  from a cylinder 3, is passed into molten metal in a ladle 1 and the metal flows from a hole 5 into a tundish 6 with a closed-end nozzle 7 having a passage or passages 8<SP>1</SP> directing metal downwardly beneath a flux (e.g. Portland cement) of melting-point 1000‹ to 1300‹ C. on the surface of metal in a mould 9; the horizontal distance between the ladle hole 5 and the nozzle 7 is 2-10 m. and the depth of metal in the tundish 6 is at least 350 mm. The gas passing into the metal, from a permeable member 2 or 2<SP>1</SP> or from both, evens the temperature and in the case of Al-killed steel floats out Al 2 O 3  inclusions. The flux in the mould besides acting as a lubricant is for keeping the atmosphere away from the metal surface and to collect aluminates. There is given the analysis of a steel to be cast. The arrangement of the tundish nozzle and mould is described in Specification 1,278,624.
Patent GB-538511-A (GB)
Title: Improvements in photographic cameras with photo-electric control devices
IPC: G03B7/085
Filed: 1939-11-07
Abstract: 538,511. Photo-electric control of photographic exposure. HENRIKSEN, P. E. Nov. 7, 1939, No. 29598. Convention date, Nov. 8, 1938. [Class 40 (iii)] [Also in Group XX] In a camera with a photo-electric system for controlling the automatic or manual setting of the shutter speed or the diaphragm, pre-set manually operated means are provided whereby the photo-electric system may be caused to give the correct exposure for either the brighter or darker portions of a scene in which large contrasts of brightness or colour occur. As shown, a photo-electric cell 1 is connected to a meter 2 which actuates the diaphragm 5, the current being controlled by devices 3, 4 in accordance with the film speed and shutter speed. To increase the exposure from the normal to one suitable for the shadow areas of the scene a pre-set resistance 9 is brought into the circuit by opening the switch 8 by which it is normally shorted. To obtain a suitable exposure for the brighter areas, a resistance 12 which is normally in the circuit is cut out by operating a shorting switch 8a. In modifications, both controls are effected by means of a single resistance with a sliding contact having means to arrest it in preset positions corresponding to the three different exposures. In other forms, the control is effected by an iris diaphragm in front of the photoelectric cell, or three cells of different outputs are selectively switched into the circuit. In a kinematograph camera, the control may be effected by angular adjustment of an arm which also effects the starting and stopping of the motor by movement towards and from the camera.
Patent GB-1298268-A (GB)
Title: Process for the manufacture of quinoxaline dioxides
Inventor: BOWIE RAYMOND ALEXANDER
IPC: A23K1/16
Filed: 1970-06-18
Abstract: 1298268 Quinoxaline dioxides IMPERIAL CHEMICAL INDUSTRIES Ltd 18 May 1971 [18 June 1970] 29626/70 Heading C2C A process for the manufacture of compounds of formula comprises reacting the corresponding quinoxaline with an aq. soln. of H 2 O 2 , in presence of tungstic acid or a salt thereof, pertungstic acid or a salt or complex thereof, tungstic oxide or a tungsten compound capable of being oxidized by H 2 O 2  to pertungstic acid. In the formula, (a) R<SP>1</SP> and R<SP>2</SP> are H, R<SP>3</SP> is H, halogen or Me, and R<SP>4</SP> is H or Me; or (b) R<SP>1</SP> and R<SP>2</SP> are Me, R<SP>3</SP> is halogen and R<SP>4</SP> is H.
Patent GB-1002312-A (GB)
Title: Driving means for conveyor belts
Inventor: MOONEY JOHN CHRISTOPHER
IPC: B65G23/34
Filed: 1962-08-02
Abstract: 1,002,312. Conveyers; chains &c. R. HORSFIELD & CO. Ltd., Oct. 29, 1963 [Aug. 2, 1962], No. 29693/62. Heading B8A.  A conveyer belt b is driven by pairs of rollers 1 between which the belt is nipped. The pressure between each pair of rollers 1 may be adjusted by rotating a shaft 12. This acts through pins 9 on slots in respective members 7 which rotate eccentrically mounted housings for the bearings of the rollers 1. The top lefthand roller 1 (as viewed in Fig. 2) is driven through an idler 15 from the top right-hand roller. The latter is driven from a motor spindle 26 through reduction gears 17-25. The lower rollers are similarly driven. An outer casing 2 forms an oil bath at each end of the rollers 1. The belt is cleaned by a flexible scraper and also by a rotary brush cleaner geared to one of the rolls (Fig. 3, not shown).
Patent GB-1310290-A (GB)
Title: Lubrication of valve gears of internal combustion engines
IPC: F16N7/26
Filed: 1970-06-18
Abstract: 1310290 Lubricating SOC ANON AUTOMOBILES CITROEN 18 June 1970 [26 June 1969] 29745/70 Heading F2A [Also in Division F1] In an overhead valve gear of an internal combustion engine, pressurized lubricant is supplied to each bearing zone formed between the heel of each rocker and its associated cam, via a bore 4, Fig. 1, in a rocker shaft 2, a radial hole 4a or 4b, Fig. 2, in the shaft 2 and via a port 6a or 6b in the rocker 5, the holes 4a, 4b registering with the ports 6a, 6b. In view of the hole 4a, Fig. 5a, being smaller than the port 6a, the direction of the sprayed lubricant is fixed and in view of the hole 4b, Fig. 4a, being larger than the port 6b, the direction of the sprayed lubricant is not fixed. In use pressurized lubricant is supplied to a duct 8, Fig. 2, in the cam-shaft 1 and, upon alignment of radial holes 9 in the camshaft 1 with passages 10 formed in a cylinder head 11, the duct 8 is connected to a passage 16 in the rocker shaft 2, which leads to the bore 4 therein, and is connected to a passage 16 in a rocker shaft 3 which leads to a duct 12 to lubricate the rocker bearings.
Patent GB-720552-A (GB)
Title: Colour television transmitting system
IPC: H04N9/077
Filed: 1951-12-19
Abstract: 720,552. Colour television. PHILCO CORPORATION. Dec. 19, 1951 [Dec. 29, 1950], No. 29747/51. Class 40 (3). In a colour television transmitter the image is projected onto the target of the camera tube through a filter member, Fig. 3, made up of red, green and blue filter stripes, R, G and B, together with further stripes I which serve to produce indexing signals. The filter is disposed with the stripes at right angles to the line direction of scan whereby the camera output during each line comprises sets of component colour pulses interleaved with indexing pulses as shown in Fig. 4. The indexing pulses are separated from the camera output and employed to control the gating of the colour pulses into separate channels. The filter is constructed with the base 38 channelled between each group of colour stripes and filled with diffusing material to form the indexing stripes. The filter is illuminated from the edge by a source 40 and the intensity of illumination is made such that the indexing pulses exceed the maximum amplitude achieved by the colour pulses. By clipping the camera signal above the level shown in Fig. 4, the indexing pulses are separated from the colour pulses. In an alternative construction of filter, the diffusing material may be omitted and the channels cut so that at least one surface of each channel causes the indexing light rays to be reflected in the direction of the camera tube. A minute lens may be located in the path of each bundle of rays to bring them parallel to the image light rays. In a transmitter operating according to the invention, Fig. 6 (not shown), the output from the camera is applied to three normally closed gate stages and also to a clipping and shaping stage in which the indexing pulses are separated from the colour pulses and applied to produce a sine wave at indexing pulse frequency. The sine wave is applied to a phase shifter from which three outputs are obtained spaced apart 90 degrees electrically, these outputs being then applied to respective gate stages where they are effective to open them at the instant when the red, green and blue pulses appear in the camera output. Each gate is followed by a filter having a pass-band slightly less than the colour-pulse repetition frequency whereby an integrating effect takes place and continuous-type signals are generated. The separated component colour signals may then be applied to any form of colour transmitter of either the simultaneous or sequential type. As described the signals are re-sampled for transmission according to the dot-sequential method, and the remainder of the transmitter operates as described in Specification 703,103.
Patent GB-197345-A (GB)
Title: Improvements in or relating to fluid pressure braking apparatus
IPC: B60T8/18
Filed: 1921-11-08
Abstract: 197,345. Poultney, E. C., Gilling, A. H., and Yorkshire Engine Co., Ltd. Nov. 8, 1921. Fluid-pressure. - Differential pistons are arranged on each truck so that the brakes will be operated with full power or with partial power according to the setting of a valve. The cylinders of the pistons are situated in a single vacuum reservoir or like housing. Maximum braking is obtained by a summation of pressures acting in the same direction, and reduced braking by a difference of pressures. In the arrangement shown in Fig. 1, the lower piston face g is subject to train-pipe pressure, the smaller upper face d to vacuum reservoir pressure, and the upper annular face e either to train-pipe pressure or to vacuum reservoir pressure according to whether the truck is empty or loaded. The pipes h, j lead to a valve by which the alteration in connections for empty and loaded running is effected. In a modification, the piston is inverted so that the trunk providing the annular face is on the lower side. In a further modification, a double piston is arranged as in Fig. 4 so that the face w is subject to train-pipe pressure, the face s to vacuum reservoir pressure, and the intermediate faces t, v to either train-pipe or vacuum reservoir pressure according to the setting of the valve connected to the pipes h, j. In this way three different braking powers may be obtained. In a further modification, two differentially working pistons of different diameters are arranged on the same piston rod. Fig. 6 shows an arrangement in which two cylinders of different diameter are arranged in a single housing, variations in braking power being obtained by subjecting the piston faces 5, 6, 7, 8 to vacuum reservoir or train-pipe pressure. The upper ends of these cylinders may be open to the vacuum reservoir. Pistons of equal size may be employed, one being coupled to a shorter lever than the other. In . a further modification, a trunk on a single piston works within a trunk carried by the upper cover of the cylinder.
Patent GB-784212-A (GB)
Title: Improvements in and relating to fabrics
IPC: A47C7/22
Filed: 1953-10-28
Abstract: 784,212. Elastic fabrics; knitting; netting. LILIENFELD, J. E. Oct. 28, 1953, No. 29791/53. Classes 74 (1), 74 (2) and 140. [Also in Groups XIV and XXXII] A fabric consists of a base of substantially inextensible elements forming a retiform pattern in which the interaction points (i.e. the apices of the-meshes) do not vary in position under stress, and a set of elastic, mutually non-intersecting elements, each of which interconnects intersection points of the retiform pattern each time it crosses a mesh of the base. The base may be a warp-knitted fabric, Fig. 3, or a netted fabric, Figs. 1 and 2. The invariable positioning of the intersections may be obtained by suitable choice of knitted structure, or by knotting, cementing, or welding. The meshes may be, say, hexagons, octagons, or quadrilaterals having two longer and two shorter equal sides. The inextensible elements may be yarns, threads, twines, cables or wires. The elastic elements may be threads, elastic braided cords, or rubber or elastomeric rods or tubes in which may be inserted helices of spring wire or band and on which coverings of, say, cotton or nylon may be wound or braided, or helically wound spring wire or band. In Fig. 1, the elastic elements 24 are interwoven with the inextensible elments 21, 22 of the net 20 and the whole is secured to a frame by rings 26. The fabric may be used for foundation garments, for furniture (see Group XIV), or for automobile body suspension (see Group XXXII).
Patent GB-484479-A (GB)
Title: Improvements in pumps
IPC: F04B43/00
Filed: 1936-11-02
Abstract: 484,479. Rotary pumps. WALKER, C. BELL-. Nov. 2, 1936, No. 29809. [Class 110 (ii)] A pump has a deformable chamber 24 of rubber or the like held between a casing wall 33 and a metal liner 30 which is gyrated by an eccentric 15 on a shaft 14. The segmental chamber 24 divides at the bottom between inlet and outlet ports 28. The areas of the spaces 35 together are approximately equal to the area of the cross-section of the chamber 24, to avoid excessive compression of the rubber. The throw of the eccentric is adjustable on the tapered portion 36 of the shaft, this portion also being eccentric to the casing bore. An annular groove may be formed in the wall 33 to admit the outer wall of the chamber when it is under excessive pressures from the eccentric. Alternatively, a pressure-release valve may be provided between inlet and outlet ports. The chamber 24 may extend only part of the way round the shaft, to give a pulsating delivery. In a modified arrangement, the chamber extends axially in the casing, in a series of convolutions. A further arrangement, Fig. 5, shows the chamber 59 held between a casing wall 55 and a plate 61 which is given a " swashplate " motion by an inclined part 63 on the shaft 60. Fabric, wire, or other reinforcement may be used in the rubber.
Patent GB-1326142-A (GB)
Title: Machine for the automatic continuous manufacture of re inforcements
IPC: B21F27/20
Filed: 1971-06-25
Abstract: 1326142 Making wire reinforcements; coiling helices M DEBRY 25 June 1971 [2 July 1970 2 June 1971] 29846/71 Headings B3A and B3E A machine for the automatic manufacture of reinforcement structures, particularly for concrete, comprises a drum 15 for a transverse wire c, a wire guide 14, the drum and the wire guide being rotatably mounted, reciprocable grippers 24, 24a and guide barrels 18, 18a for feeding longitudinal members, e.g. bars a, b to the drum, and means for correlating the feed of the bars with the rotation of the drum and wire guide to effect a helical winding of the wire about the bars. A frame 11 supports a cylinder 12 on which is mounted a bearing 13 carrying the pivoted wire guide 14 and the drum 15 both of which are rotated by a variable speed motor unit 16, 17. Secured to the inside of the cylinder 12 are the slidable barrels 18, 18a. The grippers 24, 24a are mounted in carriages 21, 21a, reciprocated by jacks 22, 22a both grippers and jackers being controlled by a device 25 to move in synchronism with the rotation of the drum 15. Welding devices 27, 27a actuated by jacks 29, 29a are supported in a frame 30 and weld the wire to the bars. In a modification the drum 102, Fig. 2, has rollers 103 engaging a ring 104 integral with the support 105 of a wire guide. The ring is coupled to a variable speed reduction unit by a chain wheel 106. The side 108 of the drum has a bayonet mounting to allow a bobbin of wire 101 to be positioned on the drum. An adjustable brake 114 engages the side of the drum member 102. In the frame 121 a carriage 122 mounted on rails 123 supports grippers 124 and guides 125 for adjustable barrels 126. The carriage is adjustably reciprocated by a jack 129 via a lever 130 pivoted to the frame. A second lever 136 pivoted to the lower frame 137 imparts the same movement of the carriage to a rod 139 which controls the welding supports, cutting tools or a calibrating member (not shown). The barrels 126 have catches 128, 128a for gripping the bars. In operation, at each angle of the wire on the bars A or B the assembly advances by the movements of the carriage, the bars being gripped by the grippers 124. According to the section of helix to be obtained it is either the barrel 126 of bar A which pushes the wire, or the barrel of bar B. The corresponding catches being operative or inoperative.
Patent GB-865496-A (GB)
Title: Prestressed pipe
IPC: F16L9/08
Filed: 1958-09-18
Abstract: 865,496. Concrete pipes. LOCK JOINT PIPE CO. Sept. 18, 1958 [Dec. 11, 1957 ; Feb. 19,1958], No. 29875/58. Class 99(2). In a prestressed pipe having a monolithic tubular body 10 of concrete with a spigot at one end and gasket bearing surfaces encircling the spigot, the surfaces of the spigot being made entirely of concrete, a tensioned wire wrapping 12 around the body subjecting the concrete to circumferential stress, a tubular arrangement of longitudinally disposed, pretensioned, hightensile steel wires 11 in the body, and anchoring means on the wires 11 adjacent the ends of the body, the wire wrapping 12 ends close to the gasket-bearing surfaces and the anchoring means comprise integral portions of the wires 11 extending transversly therefrom and of at least another member engaging those portions. The anchoring means are entirely embedded in the concrete of the body close to the end face of the spigot and retain high longitudinal compression of the concrete close to the ends of the wires. As shown in Figs. 2 and 4, the wires 11 are anchored in pairs to steel pins 22 by curling the wires around the pins to form a single coil 25 therein, and, where the pipes are subjected to very high working pressures, steel rings 27 are located in abutting relation to the coils. In modifications, (a) the longitudinal wires are coiled around a single hoop or ring extending entirely around the core, (b) the anchorage comprises an L-shaped pin 34, Fig. 8, one leg 37 of which is engaged by a coil 38 in the wire, the other leg being secured to the wire by a lashing 39, or the pin 49, Fig. 12, is U-shaped and has both legs engaged by coils 50 in the wire, or the wire passes through an opening in one of the legs, (c) the wires are impressed by dies from diametrically opposite sides to form widened sections 122, 123, Fig. 16, a steel washer 125 being located between the two sections to augment the anchoring effect of the sections, and (d) the ends of the wires are upset to form an abutment for a washer, or the wire is upset to form a pair of beads 132, 133, Fig. 19, between which is located a washer 131.