baber/WOPTO huggingface dataset:
Patent GB-521740-A (GB)
Title: Improvements in and relating to compressional wave indicators
IPC: G01S3/802
Filed: 1938-11-25
Abstract: 521,740. Electric signalling systems ; acoustic directional apparatus. HUGHES & SON, Ltd., H., SPROULE, D. O., and HUGHES, A. J. Nov. 25, 1938, No. 32671/37. [Classes 40 (i) and 118 (ii)] In a compressional wave indicator the pick-up means are mechanically coupled to the several voltage generators connected to a compound oscillograph effecting the vectorial summation of the components to give an indication of the direction and magnitude of the wave motion. The diaphragms d of two generators a of the moving coil type are connected by links to a light beam f pivoted on a support and carrying a beam h surmounted by a sphere i. Two receivers i, i<SP>1</SP> are arranged at right angles and are affected by the two components of the wave r, the voltages generated being fed through amplifiers m, m<SP>1</SP> to the electrodes of the cathode ray tube p, the electron beam being deflected in magnitude R and direction # corresponding to the amplitude and direction # of the wave. In a modification, the receivers are constructed as one instrument having one cruciform beam f. Magneto-strictive generators may be used.
Patent GB-918379-A (GB)
Title: Circuit for stabilizing the current to alternating-current electromagnets
IPC: G05F3/06
Filed: 1960-09-23
Abstract: 918,379. Automatic regulation. CESKOSLOVENSKA AKADEMIE VED. Sept. 23, 1960 [Sept. 30, 1959], No. 32699/60. Drawings to Specification. Class 38 (4). The alternating current to an electromagnet, having a non-linear voltage/current characteristic, for a betatron or synchrotron is stabilized by a capacitor or inductor in series with the supply to the electromagnet. For the series capacitor, the combination of capacitor and electromagnet is arranged to present a capacitive impedance to the supply. An auxiliary tuning coil is connected across the supply to reduce the wattless current.
Patent GB-1140177-A (GB)
Title: An electric switch for direction indication in vehicles
IPC: B60Q1/42
Filed: 1967-07-17
Abstract: 1,140,177. Turn indicator switches. SWFSPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU G.m.b.H. 17 July, 1967 [21 Dec., 1966], No. 32713/67. Addition to 1,137,787. Heading G4Q. In the switch described in Specification 1,137,787, the stop members are held in position by compression springs disposed in recesses in the switch member. The switch cover may be provided with recesses into which the springs partly extend.
Patent GB-1459149-A (GB)
Title: Tape cassettes
IPC: G03B21/43
Filed: 1974-07-25
Abstract: 1459149 Tape cassettes RICOH KK and JAPAN OPTICAL ENG RESEARCH ASSOCIATION 25 July 1974 [26 July 1973] 32831/74 Heading B8M A tape cassette includes a casing 1 for cores 5 and 6 on which tape 9 is stored for feeding past a magnetic head 12 by means of an endless belt 10 guided by rollers 2, 3 and 4 and driven by a drive roller forming a part of the apparatus fed. The rollers 4 and 5 also guide the tape 9 between flanges. In a modification, Fig. 4 (not shown) the belt 10 is driven selectively in opposite directions by one of two rollers (45 and 46).
Patent GB-1280454-A (GB)
Title: Improvements in and relating to marking metallic materials
Inventor: WELLS PETER HALL
IPC: B41F17/10
Filed: 1968-07-10
Abstract: 1280454 Rolling JOHNSON MATTHEY & CO Ltd 26 June 1969 [10 July 1968] 32841/68 Heading B3M [Also in Division B6] An elongate metallic article in wire, rod or strip form and suitable for use in a thermocouple includes (for identification purposes) in or on the surface thereof a pattern which comprises a plurality of projections or depressions disposed in a straight line and in succession along the length of the wire rod or strip and which is repeated at intervals along the length of the article, each pattern including a characteristic depression or projection M having at least that dimension thereof which extends lengthwise of the article substantially greater than the corresponding dimensions of the remaining projections or depressions a, c, d and g so as to more readily indicate the presence of the characteristic depression or projection. The embossing device comprises co-operating steel rollers 2 and 3, the roller 2 bearing the embossing pattern 4 and the roller 3 having a guide groove 5.
Patent GB-879729-A (GB)
Title: A photographic colour printing apparatus
IPC: G03B27/73
Filed: 1959-09-28
Abstract: 879,729. Photo-electric control of photographic printing. AGFA A.G. Sept. 28, 1959 [Sept. 26, 1958; Sept. 3, 1959], No. 32945/59. Class 40(3) In photographic colour printing apparatus colour correction means are arranged to control also a system for maintaining the total image density constant. In an arrangement employing consecutive exposures to three primary colours, light transmitted through the negative on to the photo-multiplier 1 is integrated to operate relay 43 which switches off the printing light or changes the filter. The printing colour is selected by the switches 34, 35, 36, and the photo-multiplier dynode voltages are varied by means of the corresponding colour correction potentiometers 17, 19 and 21. Coupling is arranged between these and density compensating resistors 11, 13 and 15 such that increase in exposure period due to the former by a factor k causes a decrease due to the latter by a factor k<SP>1</SP>/ 3 . Potentiometers 5 and 7 take account of the position of the masks of the printing frame. A modification is described, Fig. 2 (not shown) employing simultaneous exposures wherein one photo-multiplier is connected to each colour correcting potentiometer, such potentiometers being coupled to density compensators in circuit with all the photomultipliers. Specification 863,606 is referred to.
Patent GB-360662-A (GB)
Title: A conveyor for bottles, boxes, and the like
IPC: B65G25/00
Filed: 1930-11-04
Abstract: 360,662. St e p-by-step conveyers. MEADOWCROFT & SON, Ltd., W. and MEADOWCROFT, W., Regent Street, Blackburn. Nov. 4, 1930, No. 33099. [Class 78 (i).] An appliance for moving bottles &c. over a bed C comprises an L-shaped member A having a vertical face B, which has a motion similar to that of a coupling rod of a locomotive, and a series of adjustably mounted plates H. The member A is connected by links D to arms E fixed on a shaft F which is splined at f to receive a key f<1> on a crank arm f<2>. The connecting-rod f<3>, which connects the crank f<2> to. an eccentric f<4>, crank or cam on a driving shaft G, is telescopic and provided with a spring which yields when the compartments B come into contact with the bottles and press them against the plates H. The shaft F is moved endwise through the arm f<2> by an eccentric e<6>, the movement of which is communicated through a connecting-rod e<5>, a double knuckle joint e<4>, a bellcrank lever e and a link e<1> to a lug e2 which is rotatably mounted on the shaft F between collars e3.
Patent GB-1270460-A (GB)
Title: Temporal light modulator using deflectable membrane
IPC: G02B26/02
Filed: 1969-07-01
Abstract: 1,270,460. Modulating light. PERKINELMER CORP. 1 July, 1969 [29 July, 1968], No. 33131/69. Heading H4F. [Also in Division G2]  The intensity of a light beam 11, e.g. from a laser 10 and used in an optical communication system is up to 100% modulated by reflecting it from a beam splitter 12 on to a reflector 13 which is deformable in accordance with an electric signal, focusing the reflected beam by a lens 22 to form a Fraunhofer diffraction pattern and using a spatial filter 23 at the focus of the lens to transmit only the central variable intensity portion of the focused beam. The reflector 13 may be as described in U.K. Specification 1,121,669, comprising a reflective aluminium membrane 14 over a well 15 which is deformed by applying a potential between the membrane and the base 18 of the well. The aperture of the filter 23 is preferably of the order #D/4f where # is the wavelength of the beam, D is the illuminated diameter of the lens and f the focal length of the lens. In an alternative embodiment, Fig. 3 (not shown), the beam splitter is omitted and the light beam forms an angle of 80-100 degrees with the surface of membrane 14. In a third embodiment, Fig. 4 (not shown), the beam 11 is transmitted to the membrane 14 through a beam splitter, a concave lens, the spatial filter, and a second concave lens, and the reflected beam returns to the splitter via these elements where it is reflected to give the modulated signal.
Patent GB-1285128-A (GB)
Title: Watt-hour meters
Inventor: GRAEFNITZ R F
IPC: G01R11/36
Filed: 1970-07-08
Abstract: 1285128 Induction meters DUNCAN ELECTRIC CO Inc 8 July 1970 [9 July 1969] 33182/70 Heading G1Q Light load compensation for an induction energy meter is provided by two conductive loops F, R, Figs.2, surrounding the central voltage pole 19 and respectively extending in the forward and reverse directions relative to the rotation of the disc 21, the ends of each loop being interconnected through a coil 26F, 26R, surrounding a common adjustable magnetic member 28. The two loops F, R, which may be asymmetric, respectively provide positive and negative compensating torques the relative magnitudes of which are adjustable. In a first embodiment, Fig.1, the two loops are integrally formed from a common copper plate Fig. 3 (not shown) having one portion common to both loops. The coils 26F, 26R are embedded in moulded insulating material through which the magnetic member 28, coated in silicone grease, slides. Phase angle adjustment is provided separately by two coils 41 carried on a former 42 and each embracing an adjustable magnetic member 43 which provides a shunt flux path between outer and central limbs of the voltage core. The coils 41 are connected to a further auxiliary coil 45 mounted on a tongue 45' which forms a flux return path for the voltage flux. The meter has a single current coil 16, and the core structure is supported in an aluminium frame 11 mounted on a base 12. In a second embodiment, Figs.4, 8 and 12, the two light load compensating loops are again formed from a single plate 53 having a portion 56 common to both loops but the end of each loop nearest the voltage pole 19 is connected to its respective coil 26F or 26R through a second common conductive  path. This path, which affects phase angle, comprises either a slotted plate 54 or an auxiliary coil Fig.13 (not shown) which has its own adjustable core providing a flux path between the central voltage pole 19 and a magnetic core-supporting bracket (66) Fig. 7 (not shown). The adjustable magnetic member 28 slides within a non-magnetic stainless steel tube 87 Fig. 8, the coils 26F, 26R surrounding this tube and being embedded in or coated with plastics material 86. The portion 56 of the copper plate 53 carries a temperaturecompensating loop. The plate 53 is itself supported Fig.12, by stainless steel members 73 inserted in gaps (71) Fig. 9 (not shown) between the outer and central limbs of the voltage core. A cylindrical portion 76 of each member 73 accommodates a screw 69, Fig. 8, for adjusting the balance of the phases in a polyphase meter. Voltage compensation is provided by a bar 79 and a brass bar 81 which bridge the three limbs of the voltage core and which are each secured to the core by fingers formed integrally with the core-supporting plate (66) and extending through apertures (83) in the voltage core.
Patent GB-408181-A (GB)
Title: Improvements in and relating to methods of and apparatus for cutting glass
IPC: C03B33/095
Filed: 1933-11-27
Abstract: 408,181. Glass manufacture. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Hahn, C. E.; 971, Rushleigh Road, Cleveland Heights, Ohio, U.S.A.) Nov. 27, 1933, No. 33192. Convention date, Nov. 29, 1932. [Class 56.] Apparatus. for severing glass consists of means for bringing the glass while in a heated state into contact with a chilled knife having a liquid in its contacting surface, and for moving the knife in order to score the glass. The device is applicable to apparatus for drawing glass tube or rod continuously, and it can be used in conjunction with the mechanism for feeding glass rod or tube which is described in Specification 140,440, [Class 31 (i)]. The glass tube or rod 10, Fig. 3, which is at a temperature of 200‹-300‹ F., is fed along a table 11 and is engaged by a knife 12 while both are moving at the same speed. The knife is cooled and moistened by water which circulates through passages 14, 15 in the head 17 in which the knife is mounted. Some of the water passes through a valve 19 to a block 13 that surrounds the knife, and is distributed along a slot in which the knife is held. The head 17 is pivoted on a pin 40, Fig. 2, carried by a slide 31 which moves in guides on a yoke 30. A pin 39, projecting below the yoke, carries a roller 37 which rests on a cam 34 on a shaft 36. Rotation of the cam causes the knife to descend and rest on the glass tube 10 when a cut is to be made. The knife is also moved horizontally, while in contact with the glass tube, by another cam 35 which engages a roller 47 on an arm 49 projecting from the slide 31. The cam 35, in cooperation with springs 52, moves the slide 31 relatively to the yoke 30 and causes the knife to score the glass. The cams are moved along the shaft 36, and kept aligned with the rollers 37, 47, by the mechanism that moves the yoke with the glass tube while cutting is taking place.
Patent GB-682602-A (GB)
Title: Improvements in or relating to deep well pumping apparatus
Inventor: ROWLES REGINALD VICTOR
IPC: F04B47/04
Filed: 1948-12-23
Abstract: 682,602. Deep-well pumps. FIELDING & PLATT, Ltd. Jan. 17, 1950 [Dec. 23, 1948], No. 33197/48. Class 102 (i) [Also in Group XXIX] Deep well pumping apparatus comprising a pump rod operatively connected to a piston operating i n a cylinder, a variable delivery pump for supplying liquid under pressure to the cylinder to effect movement of the piston to raise the pump rod and liquid pressure responsive means for progressively varying the delivery of liquid from the pump at selected stages of the travel of the piston, in the upward or downward movement or both, the said means being operated at a controlled rate by hydraulic pressure built up by movement of the piston through said selected stages. The rod 1 of a deep well pump is connected to a piston 4 so that the rod 1 is lifted by pressure liquid and allowed to fall by gravity. The pipe 5 is connected through a pump 6 and slide valve 8 to a reservoir 9 in which liquid is stored at a pressure substantially to balance the weight of the rod 1. The valve connects the delivery of the pump 6 to the piston 4 and is reversed to connect the suction of the pump 6 to the piston 4 to allow the rod to fall. The valve 8 is reversed by pistons, the supply of pressure liquid to which is controlled by an auxiliary valve 18 also having pistons to actuate it. The pressure to these latter pistons is supplied by a piston 11, attached to piston 4, when it enters the cylinder 12 near the end of its downward stroke and by piston 29 when it is contacted by piston 4 near the end of its upward stroke, and enters cylinder 32. The pressures in cylinders 12 and 32 also act in cylinders 15, 35 respectively to adjust a rod 17 to vary the stroke of pump 6 and thus vary the velocity of the rod 1 at the ends of its strokes. A pipe 22 connects the pipe 5 to an accumulator 23 filled with an air bag to absorb shock due to the seizure of the rod 1.
Patent GB-843145-A (GB)
Title: Differential-pressure responsive apparatus
IPC: G01F1/38
Filed: 1957-10-17
Abstract: 843,145. Pressure gauges. FOXBORO CO. Oct. 17, 1957 [Oct. 19, 1956], No. 33209/59. Divided out of 843,144. Drawings to Specification. Class 106 (2). The description is identical with that of Specification 843,144, the claims being directed to the temperature compensation mechanism. Specification 790,294 also is referred to.
Patent GB-486766-A (GB)
Title: Method of fireproofing inflammable materials
IPC: D06M13/292
Filed: 1936-12-04
Abstract: Dicyandiamidine phosphate is made by adding solid dicyandiamide to 50 per cent phosphoric acid and heating to 100 DEG  C.  If 60 per cent phosphoric acid is used a melt is formed which solidifies on cooling. If 25 per cent phosphoric acid is used and the solution cooled to 0 DEG  C. the bulk of the phosphate crystallizes out and the remainder can be obtained by evaporation.
Patent GB-429275-A (GB)
Title: Improved liquid dispensing apparatus
IPC: B67D1/12
Filed: 1933-11-28
Abstract: 429,275. Dispensing drinks &c. BARNES, F. J. T., 184, Breakfast Creek Road, Nowstead, Brisbane, Australia. Nov. 28, 1933, No. 33325. [Class 116] Apparatus for dispensing any one of a numberof liquids, e.g. beverages, or a mixture of such liquids comprises a sight tube 10 mounted between washers 11 in a base ring 12 and a plate 15, respectively, the plate 15 being providedwith a number of steel or glass conduits 17 which communicate with the liquid supplies at their upper ends and are closed at their lower ends by valves 20 having stems 21 with heads 24 urged upwards by springs 25. A plate 28 carried by a sleeve 27 mounted on a spindle 26 screwed axially in the plate 15, is adapted to be rotated by a knob 34 so that a radial rib 29 on the plate 28 may be aligned with a selected valve-head 24, the plate being retained in the selected angular position by a spring-pressed ball 31 engaging one of a number of grooves 32 in the spindle 26. The selected valve is opened by depressing the plate 28 by a lever 38 acting through a yoke 36, the extent of movement of the lever being limited by a stop 44. The liquid flows past the selected valve into the chamber 10 which is vented by a pipe 50, the liquid being drawn off from the chamber 10 by way of a valve-controlled outlet communicating with the passage 48. The draw-off tap is described in Specification 423,360. In a modification, the lever 38 may be dispensed with, a knob being mounted on the spindle 26 and having pins engaging cam-slots in the sleeve 27 so that on turning the knob in one direction, the rib 29 on the plate 28 may be aligned with the required valve, whereas movement of the knob in the opposite direction causes the pins engaging in the cam slots to depress the plate 28 and so open the slected valve. The plate 28 may co-operate with a fixed pointer to indicate the name of the particular liquid selected.
Patent GB-1489526-A (GB)
Title: Polyalkylene terephthalate polymer moulding resins
IPC: C08L67/02
Filed: 1975-08-11
Abstract: 1489526 Polyester moulding compositions CELANESE CORP 11 Aug 1975 [12 Aug 1974] 33371/75 Heading C3R A thermoplastic moulding composition comprises (a) polypropylene terephthalate or polybutylene terephthalate, (b) a reinforcing agent and (c) a phenoxy resin having an average molecular weight of from 15,000 to 75,000 and derived from bisphenol A and epichlorohydrin. Specified reinforcing agents are glass fibres, asbestos fibres, cellulosic fibres, graphite fibres and acicular calcium metasilicate which may be present in an amount of from 2 to 60 weight per cent, based on the composition. The phenoxy resin is preferably present in an amount of from 0À1 to 8 weight per cent, based on the composition. A flame-retardant composition may be provided by either (i) using a mixture of antimony trioxide and polypropylene or polybutylene terephthalate containing units derived from 2,2 - bis - (4 - ethoxy - 3,5 - dibromophenyl)propane, or (ii) using polypropylene or polybutylene terephthalate and a mixture of an aromatic halogen-containing compound, e.g. decabromodiphenyl ether, and a Group Vb metal compound, e.g. antimony trioxide.
Patent GB-1479234-A (GB)
Title: Food containers
IPC: B65D1/26
Filed: 1975-08-12
Abstract: 1479234 Metal foil food trays FKF BERLIN FLEISCHWAREN & KONSERVENFABRIK SCHULTZ & BERNDT GmbH & CO KG 12 Aug 1975 [25 Sept 1974] 33576/75 Heading B8C and B8P A hermetically-sealed food container comprises a deep drawn tray 3 containing sterilized prepared food and a lid 2 sealed to the tray, the height A of the container being between 1/40th and 1/150th of the area of the base and both the lid and tray being of a metal foil. The lid and tray may be of aluminium coated with polypropylene on the inner surfaces. The base of the tray has rectangular indentations 12. The tray walls are stepped to impart rigidity and assist nesting. The lid comprises a rectangular planar central part 17, a shoulder 10, a convex portion 9, an upwardly extending flange 7, and a roll formed bead 8 which acts as a pull tab 8 for opening.
Patent GB-821523-A (GB)
Title: Improvements in or relating to apparatus for pressing and drying articles of clothing
IPC: D06F71/34
Filed: 1955-11-23
Abstract: 821,523. Ironing presses. MALYN, J. Nov. 29, 1956 [Nov. 23, 1955], No. 33597/55. Class 138 (2). Apparatus for pressing and drying articles of clothing comprises a steam vacuum system and an air vacuum system so interconnected by valves as to permit either system to be by-passed when the apparatus is operative. The apparatus comprises a fixed hollow platen 2 and a hollow platen 3 movable manually. Steam is supplied to the platens from boiler 4 through conduits 5, 6, 7, 8 and 9 and is exhausted to atmosphere by closing the pedal-controlled valves 13 and 15 and opening pedal-controlled ejector valve 14, air valves 21 and 23 being closed throughout operation of the steam system. When the air vacuum system is used all the steam valves 13, 14, 15, 16 and 17 are closed and air valve 21 is opened. Opening of pedalcontrolled air valve 23 causes air to be exhausted from the platens through conduits 12, 11, 8, 22 and 20 by vacuum pump 18.
Patent GB-1014842-A (GB)
Title: A bracing device for face conveyors
IPC: E21F13/10
Filed: 1962-09-03
Abstract: 1,014,842. Hydraulic jacks. H. BEUKENBERG, H. BEUKENBERG, and K. BEUKENBERG, [trading as MASCHINENFABRIK GLUCKAUF GUNTHER KLERNER]. Sept. 3, 1962 [Sept. 21, 1961], No. 33660/62. Heading B8J. An inclined, pressure-operated prop adapted to act as a bracing device for a conveyer comprises a cylinder 11 provided with a ball type bearing portion 12 formed integral therewith or screw-threaded thereto (see also Fig. 4, not shown). The unit 11, 12 is held on a box plate 14 by a ring 17 and has its inclination controlled by a set of springs 23 which may take the form of helical or spiral springs acting on lugs attached to the member 12 (see Figs. 3 and 5, not shown).
Patent GB-429667-A (GB)
Title: Improvements in or relating to pumps
IPC: F02M59/44
Filed: 1934-11-23
Abstract: 429,667. Starting. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Nov. 23, 1934, No. 33668. Convention date, Nov. 25, 1933. [Class 7 (v)] [See also Group XXVIII] A fuel - injection pump, which can be adjusted to actuate hydraulically a compressed-air starting valve, comprises a cylinder bushing b provided with a suction port p and containing a piston h having a recess i bounded by an inclined edge n and connected to the compression space by a groove o. The fuel delivery through a valve e ceases when the edge n uncovers the port p, and the output is controlled by rotating the piston. A port q in the bushing is connected by a pipe y to means for actuating the compressed-air starting valve of the engine. When the groove o registers with the port q the liquid trapped in the cylinder reciprocates in the pipe y. The port q is packed by a soft metal washer z, shaped to the outside of the bush b and compressed by the nut 10.