baber/WOPTO huggingface dataset:
Patent GB-696671-A (GB)
Title: Improvements in and relating to loudspeakers
IPC: H04R1/28
Filed: 1949-09-23
Abstract: 696,671. Loudspeakers. BRITISH BROADCASTING CORPORATION, SHORTER, D. E. L., and PETRIE, R. D. Sept. 18, 1950 [Sept. 23, 1949], No. 24528/49. Class 13 [Also in Group XXXIX] A loudspeaker cabinet has an upper chamber 13 connected by an opening 16 to a lower chamber 14 with a vent 19 to the atmosphere. The opening 16 is masked by several layers of felt 17 and the lower chamber is of irregular shape to prevent setting up of standing waves. The associated amplifier may be housed in the space 24. In a modification, Fig. 2, the vent 27 is at the bottom of the.lower chamber.
Patent GB-1123304-A (GB)
Title: Improvements in or relating to lampholders
Inventor: GREASLEY ERIC ARTHUR
IPC: H01R33/22
Filed: 1966-06-02
Abstract: 1,123,304. Lampholders; surface connectors for printed circuit boards. PRESSAC Ltd. 27 April, 1967 [2 June, 1966], No. 24571/66. Heading H2E. A lampholder 1 is of resilient metal with U-shaped claws 3 which snap-fit through slots 4 in a printed circuit panel 5 and engage circuitry 7, the holder having a helical aperture for receiving a screw-based lamp. Insertion of the lamp until its base contact abuts a contact stud 10 on the panel pulls the holder upwardly, drawing its claws 3 against the circuitry 7.
Patent GB-483080-A (GB)
Title: Improvements in or relating to electric lamp attachments
IPC: F21L4/00
Filed: 1936-09-09
Abstract: 483,080. Electric - battery lamps. FROGGATT, A. D. Sept. 9, 1936, No. 24627. [Class 39 (ii)] In a lamp attachment for primary or secondary batteries, of the type wherein a plate carrying a lamp holder is mounted on the terminals of the battery and suitable connections between the lamp holder and battery terminals are incorporated in the plate, the lamp holder is carried on an extension or arm 4 which is hingedly secured to an insulating plate 1 adapted to be rigidly and removably secured to the terminals 8 by terminal heads 5, 6. The plate 1 is apertured to receive metal contact plates or discs 9, 10 through which the terminals 8 project, the plate 9 being in permanent contact with its terminal, whilst the plate 10 is in the form of an annular collar with an inclined inner surface 12 which cooperates with a screw-threaded sleeve 24 in the terminal head 6 and closes the circuit when the terminal head is screwed down. The contact plates 9, 10 are connected to conducting strips which are located on the underside of the plate 1 and terminate in apertured brass plates which, at the hinge 3, make sliding contact with corresponding brass plates on the adjacent parts of the extension 4. The contact plates may be slidably adjustable along the plate 1 to enable the attachment to be used with accumulators having differently spaced terminals. A separate switch may also be provided on the side of the plate 1.
Patent GB-320999-A (GB)
Title: Improvements in or relating to television
IPC: H04N3/02
Filed: 1928-08-28
Abstract: 320,999. Shinton, J. S. Aug. 28, 1928. Television.-In a television transmitter images are intermittently reflected on to a selector device comprising a stationary slot and a rotating slotted disc. The image of an object 1, Fig. 1, is projected by lens 2 on to the edge of a rotating wheel 3 having a plurality of mirrors 4 thereon arranged tangential to the rim and parallel to the axis of rotation. Each mirror as the wheel rotates reflects and focusses the image on a disc 5 rotating about an axis perpendicular to that of wheel 3, and provided with radial or other slits 6, overlapping a slot- 8 in a fixed member 7 behind which is a light-sensitive cell 9, a terminal of which is shown at 11. Wheel 3 may be rotated at 2,000 revolutions per minute, and disc 5 may have five slits and rotate at 60 revolutions per minute. At the receiver, Fig. 3, light from a source 13 passes through lens 14, polarizing Nicol 15, a Kerr cell 12 (to the plates of which potentials derived from the light-sensitive cell at the transmitter are applied), analyzing Nicol 16, lens 17, on to a wheel 18 provided with mirrors 19 and similar to wheel 3 at the transmitter. Light, is reflected by these mirrors on to a further wheel 20 provided with mirrors 21, and rotating about an axis perpendicular to that of wheel 18, and thence to a screen 22 whereon the picture is reconstituted. The wheel 20 may have 30 mirrors and rotate at 10 revolutions per second The invention is stated to be applicable to vibrating mirror and other televsion systems, as well as to copying telegraphs, and may be used with invisible radiation.
Patent GB-156337-A (GB)
Title: An improved cap for hauling cables
IPC: F16G11/04
Filed: 1919-10-10
Abstract: 156,337. Griffin, W. Oct. 10, 1919. Capping. - A cap for a haulage cable, such as a mine-cage lifting-cable, consists of a two-part shell enclosing a tapered core over which the strands of the rope are wound. The core is made with spherical or other enlargements h, h<1>, and the shell has corresponding recesses f in its tapering inner surfaces. The cap is secured firmly to the rope by external collars n. Each half of the shell is formed with a hook which has a dovetail c entering a corresponding recess d on the other hook, thus forming a rigid loop. The mouth m of the cap is flared, and the core has an extension k which replaces the hemp core of the cable and prevents the cable from breaking at the mouth m of the cap.
Patent GB-1398611-A (GB)
Title: Powder-compression presses
IPC: B30B11/00
Filed: 1972-05-25
Abstract: 1398611 Powder compression press LE CARBONE-LORRAINE 25 May 1972 [2 June 1971] 24791/72 Headings B5A and B5F A double-acting powder compression press comprises three moulding members, viz, a die and upper and lower rams movable relatively thereto and a single fluid-operated piston and cylinder means for controlling the relative movements of the die and rams, the piston and cylinder means having two piston-rods, one of which is connected to one of said moulding members, the other of which is connected to another of said moulding members, and the third moulding member being rigid with the body of the press. As shown in Fig. 1, the machine comprises uprights 1 rigidly connected by cross-bars 2, 3, 4. Cylinder 8 is mounted on cross-bar 4 and upper ram 7 on cross-bar 2. Plate 5 carrying die 19 and plate 6 carrying lower ram 18 are movable along uprights 1. If fluid is supplied below piston 17 of cylinder 8, main piston-rod 9 is raised through a distance a to abut stop 10 and plate 5 is raised the same amount through rods 15, plate 12 and lower piston-rod 11, the depth a of die 19 being then filled with powder. On further supply below piston 17, lower ram 18 and plate 6 are raised off packing 20 with die 19, upper ram 7 entering the die 19 to effect top compression. When stop 21 is reached by plate 12, rod 9, plate 6 and lower ram 18 continue to rise, compressing spring 14, effecting bottom compression until a pressure threshold is reached in the fluid circuit. Fluid is then applied above piston 17, so that plate 6 comes to rest again on packing 20 and plate 12 on stop 16 so that the article is ejected. In the embodiment of Fig. 2 (not shown), the die is rigidly connected to the body of the machine, the upper and lower rams being movable.
Patent GB-1027832-A (GB)
Title: Dual pedal brake actuating mechanism
Inventor: FIELDSEND PETER CAMPLIN
IPC: B60T7/04
Filed: 1961-07-08
Abstract: 1,027,832. Duaf brake pedal actuating mechanism. GIRLING Ltd. July 4, 1962 [July 8, 1961; Jan. 9, 1962], Nos. 24809/61 and 753/62. Heading F2E. In a dual brake pedal actuating mechanism whereby simultaneous actuation of both pedal levers 10, 11 is effected through a foot-receiving pad or pressure member 14 pivotally mounted at 16 on one pedal lever 11 and adapted to bear on the second pedal lever 10 by means of a lug 17, when the pressure member 14 bears on the second pedal lever independent movement of the pedal levers for compensation is permitted. When the brakes are to be applied independently the pressure member 14 is swung round in a clockwise direction about its pivot 16 and lies against the pedal lever 11 below the pad 13 where it is retained by spring means (not shown). For simultaneous application of the brakes the pressure member 14 is swung upwardly to its operative position shown in which the lug 17 bears on the pad 12. Foot pressure applied to the pressure member is then transmitted to both pedal levers, but as the pressure member is free to move angularly about its pivot on the pad 13 and to rock about its point of engagement with the pad 12, differential movement of the pedals is permitted and the brakes will be applied with equal force even though this may require a greater movement of one pedal than the other. The point of engagement of the lug 17 with the pad 12 of pedal lever 10 may be adjusted so that when the brakes are applied through the pressure member the pressure applied to one pedal will be greater than that applied to the other by an amount sufficient to compensate for the different frictional losses in the transmissions to the brakes on opposite sides of the vehicle and to ensure substantially equal braking. Alternative embodiments are disclosed in the Specification including one example where the pedal lever 11 is not provided with a pad 13 but has directly pivoted thereto a pressure member 14 which acts in one position as a separate pad for independent actuation of the pedal levers 10, 11 and another position for simultaneous application of the pedals. The dual pedal actuating mechanism can also be employed for actuating the brakes on the front and rear wheels of vehicles such as to allow the distribution of the loading effect between the front and the rear wheels to be varied by a ratchet and pawl device at the pivot end of the movable pad or pressure member or on the pad or pressure member under the driver's foot so that the driver can adjust the position of the line of transmission of the applied thrust to the two pedals and apply a greater effort through one pedal than through the other.
Patent GB-1508348-A (GB)
Title: Seismometer
IPC: G01V1/18
Filed: 1975-06-10
Abstract: 1508348 Springs MARK PRODUCTS Inc 10 June 1975 24901/75 Heading F2S [Also in Divisions G1 and H4] Springs for supporting the moving member of a seismometer (see Divisions G1 and H3-H5) each comprise an inner ring 52 connected by curved arms 54 to an outer ring 53. In use the inner and outer rings 52, 53 lie in different, planes, the outer rings being clamped to the moving member and the inner rings to a central support post so that the member can move along the polar axis of the springs. The springs are preferably of beryllium-copper.
Patent GB-225328-A (GB)
Title: Improvements in and connected with non-refillable bottles
IPC: B65D49/06
Filed: 1924-06-14
Abstract: 225,328. McKellar, A. June 14, 1924. Bottles, non-refillable.- fn a non-refillable bottle, a cork disc C, apertured at D, is placed on the top of the neck B so as to extend the whole width of the bottle. A valve E of inverted saucer shape, is normally held on the opening by a ball H, and is kept in position by a cup-shaped device F, Figs. 1 and 6, having a cone-shaped end G. The end is inclined at about 45‹ to the cylindrical portion so as to provide a step at the line of junction. Ribs I, on the outside of the device F, form passages J for the outlet of the liquid, and a cap K with a central opening L for the reception of a temporary cork is sprung or screwed upon the neck of the bottle. Spring projections or corrugations N on the cap may engage with a spring collar in the neck of the bottle, to lock the cap in position.
Patent GB-273939-A (GB)
Title: Improvements in electrically heated irons
IPC: D06F75/36
Filed: 1926-10-07
Abstract: 273,939. Marks, E. C. R., (Aktieselskabet De Norske Saltverker). Oct. 7, 1926. Electric hand-irons comprise a base plate 1 and body 2 having a U-shaped groove 10 to accommodate a heating unit comprising a metal tube 11 containing an electric insulating material 13, preferably magnesium oxide, and a resistance 12. The two parts of the iron are clamped together, the face of the tube contacting with the base plate being somewhat flattened in the process.
Patent GB-1127337-A (GB)
Title: Improvements in and relating to prestressed concrete articles
Inventor: JACKSON JAMES ALLAN
IPC: B28B23/04
Filed: 1967-05-31
Abstract: 1,127,337. Moulding reinforced concrete. STANTON & STAVELEY Ltd. 31 May, 1967, No. 25002/67. Heading B5A. In the manufacture of a concrete article, e.g. a pipe, a tensioned wire 3 within a mould 1 has a member 9 fixed to it of such shape that it will not rotate in the hardened concrete, so that when the end of the wire is rotated the wire is snapped within the article. The wire is tensioned by gripping the wire in a clamp 8 and turning a threaded member 5 screwed to the mould. When the concrete has set the member 5 is unscrewed causing the wire to break between the parts 8 and 9.
Patent GB-898347-A (GB)
Title: Improvements in or relating to the inspection of coated sheets
Inventor: RICHARD MALCOLM JAMES
IPC: G01N27/02
Filed: 1960-07-18
Abstract: 898,347. Locating conductive bodies; determining physical dimensions. METAL BOX CO. Ltd. March 29, 1961 [July 18, 1960], No. 25003/60. Class 37. In an arrangement for distinguishing between opposite sides of a sheet at least one of which is coated and of which at least the sheet or a coating on one side thereof is electrically conducting, coils to which alternating current is simultaneously supplied are located respectively on opposite sides of the sheet and the differences between currents flowing in the coils are indicated. The coils 6; 7 are mounted on beams 3, 4 which can be moved inwards and outwards in timed relation with the movement of the conveyer and when closest together clamp the sheet 1 under test, therebetween. The coils are connected in parallel with capacitors 10, 11 by coaxial cables 8, 9 and the bridge, which is energized by a 2 mc/s. oscillator 1, 6 includes a gate circuit 17 in its output circuit so that the output is effective only when the coils are in contact with the sheet. The output may operate apparatus to reject a sheet or to turn it over, and the circuit may include a delay network to allow the sheet to reach a reject position. The apparatus may be used to test tin plate having layers of different thicknesses on the two sides.
Patent GB-317492-A (GB)
Title: Improvements in or relating to fluid pressure opessure brake systems
IPC: B60T13/24
Filed: 1929-08-17
Abstract: 317,492. Hydraulic Brake Co., (Assignees of Bowen, H. C.). Aug. 18, 1928, [Convention date]. Fluid-pressure.-Slight initial movement of a brake lever permits an independent pressure producing device to produce substantially instantaneously a pressure in a fluid-pressure brake system sufficient to remove the slack, independently of any further movement of said brake lever. This pressure, is produced by a source of energy, such as the induction manifold of the vehicle engine, which is independent ot the main source. Brakes 6, Fig. 1, are actuated by the pressure produced in a master cylinder 7 operated by the pedal 11 and a lever 8. A cylinder 13 is connected to the brake pipe 10 and contains a piston 14, Fig. 2, having a threaded piston rod 15, slidably, but not rotatably, engaging bearings 17, 18 fixed to the cylinder. A pinion 22 is supported between the bearings and by means of an internal thread engages the threads on the piston rod. Engaging the pinion is a rack 23 on a piston rod 25 of a piston in a cylinder 27, Fig. 1. The cylinder 27 is normally open to atmosphere past a valve, the stem 33 of which contacts the lever 8. Initial movement of the brake pedal withdraws this lever and allows a spring to move the valve to close the atmospheric ports and open the cylinder 27 to a pipe 36 leading to the induction manifold of the vehicle engine. The vacuum produced in the cylinder thereupon causes the piston therein to move and rotate the pinion 22 and move the piston 14 downwardly to apply an initial pressure to the fluid-pressure system. The thread connection between the piston rod 15 and pinion 22 is irreversible. Release of the pedal 11 moves the valve rod 33 so that the cylinder 27 is connected to atmosphere again and a spring acting on the piston therein returns it and also the piston 14 by means of the rack and pinion 23, 22, to normal position.
Patent GB-731700-A (GB)
Title: Improved ceramic spark plug insulators and methods of making the same
IPC: C04B35/10
Filed: 1952-10-10
Abstract: A composition suitable for a spark plug insulator consists of a dense non-porous sintered mass of alumina crystals bonded by an alkaline earth aluminium silicate phase containing strontium oxide.  Magnesia may also be present and the preferred ranges in per cent by weight are:-Alumina 85.5 to 97; silica 1.9 to 10.5; strontia 0.15 to 2.2; and magnesia 0.4 to 3.3.  Silica can be added in compounds, e.g. clay or magnesium silicate, and an organic binder included as a moulding aid.
Patent GB-967916-A (GB)
Title: Improvements in wire race thrust ball bearings
IPC: F16C33/61
Filed: 1963-06-26
Abstract: 967,916. Bearings. EISENWERK ROTHE ERDE G.m.b.H. June 26, 1963 [June 30, 1962], No. 25403/63. Heading F2A. A wire race thrust ball bearing has a pair of wire race rings, each of which has a ball track ground therein, the radius of the track being' slightly greater than the radius of the balls. The diameter of the race wire is greater than in bearings having four wire tracks. The race rings may be built up in segments and may be of open or closed form. In an embodiment, balls 1 are mounted in tracks 6 of wire races 2, which are seated in an upper ring 3 and a lower ring 4 respectively. Cages, or separators, 5 are provided.
Patent GB-517103-A (GB)
Title: Improvements in or relating to cigarette making machines
IPC: A24C5/343
Filed: 1938-08-31
Abstract: 517,103. Feeding cigarettes. CHOWN, S. R., and MOLIN'S MACHINE CO., Ltd. Aug. 31, 1938, No. 25523. [Class 117] [Also in Groups VI and XVII] A selecting device for rejecting or separating soft-ended or defective cigarettes from the others, for example, in a cigarette-making or packing machine, comprises means to feed cigarettes to a movable carrier 12 having one or more pairs of feelers 14 for engaging opposite ends of a cigarette ; at least one feeler of each pair is yieldingly mounted to move inwards towards the other, and locating elements 15 mounted rearwardly of each feeler are arranged to continue the movement of the cigarettes'fed to the carrier for the purpose of locating the cigarettes between opposed feelers before the ends of the cigarettes are engaged thereby. As shown, cigarettes from a continuous-rod machine are delivered by a tape 2 and are deflected transversely by members 3 on a rotary body 4 over a curved guide 7 to a position between resilient arms 8 on the carrier 3. Leaf springs 10 check the axial movement of the cigarettes, as described in Specification 376,169, [Group VI], and further springs 11 also control the cigarettes. The arms 8 carry studs or feelers 14 slightly less in diameter than a cigarette, and locating elements 15 so arranged that the axis of a cigarette is in alignment with the centres of a pair of opposed studs. Semi-circular members 17 limit the outward movement of the adjacent outer arms 8 when a sufficiently long or hard cigarette is between the studs 14, and the arm 8 . passes on one or other side of a conical stud 18 adjustably fixed to a rod 19. A curved guide 20 forms a continuation of the stud 18, and the inner arms 8 are guided by rails 21. If an outer arm passes outside a stud 18, the cigarette is released and falls on the delivery band 16, being guided by a weighted pivoted flap 22 and a fixed guide 23. If, however, the outer arm passes within the stud 18, owing to a cigarette being short or soft, the cigarette is carried forward until released by the action of cam rails 25 on the arms, and rolls down a plate 124 into a waste box. In a modification, the selecting device is constructed as described in Specification 520,735 the members 17 being replaced by a yielding member, of arcuate form, pivotally mounted and controlled by a spring, so that it can yieldingly press any projecting tobacco into the ends of a cigarette. Specification 386,417 is also referred to in the Provisional Specification.
Patent GB-1329187-A (GB)
Title: Hardening metal alloys
IPC: C22C32/00
Filed: 1971-04-19
Abstract: 1329187 Dispersion hardened alloys WESTERN ELECTRIC CO Inc 19 April 1971 [1 April 1970] 25592/71 Heading C7D Up to 1% by weight of one or more of Zr, Hf, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Lu, Th and Pu is mixed with Cu, Ag or Au, the mixture is melted, solidified and mechanically worked to form dispersed particles of a second phase within the first phase of Cu, Ag or Au and the alloy is heated in an oxidizing atmosphere to at least partially oxidize the elements of the second phase so as to harden the body. The heating may at a temperature of 700-960‹C. at an oxygen partial pressure of 10<SP>-5</SP>-10<SP>-10</SP> atmospheres for a Cu alloy and the atmosphere may be a He-CO 2  mixture or a CO-CO 2  mixture. Other relatively oxidizable metals such as Be and Al should not exceed in total 0À05 wt per cent. To form alloys of optimum conductivity elements such as Fe, As and P should not exceed 0À02 wt per cent in total. Up to 1 wt per cent of one or more precipitation-hardening or solid solutionhardening elements such as Cd, Zn or Sn may be added and the alloy may be subjected to an additional hardening treatment. The oxidation treatment may be limited to a surface portion only of the alloy body.
Patent GB-938440-A (GB)
Title: Improvements in steroid processes
Inventor: MORRIS WALTER
IPC: C12P33/00
Filed: 1961-07-14
Abstract: Steroids having at rings A and B the formula <FORM:0938440/IV(a)/1> are prepared by subjecting steroids having at rings A and B the formula <FORM:0938440/IV(a)/2> wherein R represents a hydrogen atom or a lower alkanoyl radical, to the action of enzymes produced by a growing culture of Corynebacterium mediolanium N.C.I.B. No. 7206. The process is particularly useful for the preparation of 17a -hydroxydesoxycorticosterone (substance S) from steroids of the general formula <FORM:0938440/IV(a)/3> wherein R has the above significance, and for the preparation of progesterone from pregnenolone acetate.  Specification 796,769 is referred to.
Patent GB-1532928-A (GB)
Title: Electrical connector
IPC: H01R13/639
Filed: 1977-06-20
Abstract: 1532928 Two-part connectors BENDIX CORP 20 June 1977 [15 Sept 1976] 25710/77 Heading H2E In a two-part connector 10, 20 having means 11, 21 for ensuring axial alignment of the parts and a threaded sleeve 30 captive on one part 10 for screwing on to the other part 20 to hold the connector together, an axial projection 26 on the threaded connector part 20, or the sleeve 30, interengages with a recess in the sleeve 30 or the connector part 20 when the sleeve is fully screwed up, to provide a visual indication of complete fastening and a resistance to vibrationinduced unscrewing.