baber/WOPTO huggingface dataset:
Patent GB-1501468-A (GB)
Title: Electro-acoustic transducer unit
IPC: H04R1/22
Filed: 1975-04-09
Abstract: 1501468 Microphones; loud-speakers H PEIKER 9 April 1975 [13 April 1974] 14528/75 Heading H4J In a device having a single transducer for use both as a microphone and a loud-speaker a resonant chamber is acoustically coupled to the transducer during playback. Fig. 1 shows one such transducer 4 in the playback position wherein sound outlets 12 of the transducer coincide with openings 16 in a cylindrical casing to couple the sound to the rectangular space bounded by walls 1, 2, 3, a grill 19 acting as a sound outlet. In the recording position selected by moving the lever 9, outlets 12 are closed off and sound access to the transducer is provided via inlets 18, 17 and 13 and via inlets 15, 11 which inlets are shut off during playback. Several variations on this basic arrangement are mentioned. In the arrangement of Fig. 2, shown in the playback position, sound is coupled via openings 31, and channels 33 to the chamber 56 and thence to outlets 28. During recording (Fig. 4, not shown) further channels (34) acoustically couple the openings 31 to the inlets 24 and openings 32 to the inlets 35. A two part device is shown in Fig. 7. During playback the device 51 is inserted into a sleeve 50 to form a resonant chamber 46, 39. During recording the sleeve 50 is removed. A variation on the same theme is illustrated in Fig. 6, not shown.
Patent GB-716926-A (GB)
Title: Improvements relating to stroboscopes
Inventor: RICHINGS WILLIAM VICTOR
IPC: H05B41/34
Filed: 1952-06-10
Abstract: 716,926. Stroboscopic apparatus. DAWE INSTRUMENTS, Ltd. June 8, 1953 [June 10, 1952], No. 14630/52. Class 97(1) Apparatus for studying the behaviour of bodies under the influence of forced vibrations comprises a vibration generator and a source of stroboscopic illumination controlled electrically by a common oscillator, the supply to one of the components passing by way of a frequency changing device so that the resultant frequencies of vibration and illumination differ by a small amount. Preferably the frequency changing device is in the supply to the stroboscopic illumination. As shown a suitable variable frequency oscillator 1 generates four phases connected respectively to tappings a b c d of a potentiometer 4 the rotary slides 5 of which is driven at adjustable speed by a motor 6 through gearing 7 and is connected, through a limiting amplifier 12 to the source of stroboscopic illumination 11. One tapping a is connected via an amplifier 3 to the electro-mechanical vibration generator 2. By varying the speed of rotation of the slider 5 the difference of frequency between the generator 2 and the illuminator 11 may be varied and by changing the frequency of the oscillator 1 the behaviour of the body connected to the generator 2 may be studied, for example, to determine resonances.
Patent GB-1509275-A (GB)
Title: Knock down boxes and blanks for their formation
IPC: B65D5/36
Filed: 1975-04-09
Abstract: 1509275 Boxes RYE PACKAGING Ltd 9 April 1975 14645/75 Heading B8P A knock-down box, e.g. for agricultural produce is formed from a blank having three longitudinal score lines 11-13, four transverse corner-forming score lines 16-19, slots 20-23 aligned with the score lines 16- 19 and extending from one edge of "the blank at least as far as a central longitudinal score line 12, an additional score line 28 extending across an end-forming panel 32 and a stitch flap 35 bordering the blank at a further score line 29. To form the box, the flap 35 and a panel 33 are joined preferably by stapling, as are portions of bottom-wall forming panels 36, 37 adjacent the score line 13. Delta scores 24-27 enable an upper edge of the box to be formed with downwardly folded and stitched portions 43, 44 and horizontal portions 45, 46 to assist stacking. End wall flaps 38, 39, 40 lie on top of the panels 36, 37. To collapse the box, the flaps 38, 40 are raised into contact with the end walls 32, 33 and are pushed inwardly with the end walls, Fig. 3, the bottom wall panels 36, 37 being pushed outwardly to achieve a flattened form, Fig. 4 (not shown). Extension of the slots 20-23 beyond the score line 12 provides drainage holes at the corners of the box.
Patent GB-708009-A (GB)
Title: An improved guide roller for a traverse mechanism for the winding of rayon filaments
IPC: B65H57/14
Filed: 1951-06-21
Abstract: 708,009. Traverse guides for winding rayon filament bundles. COMPTOIR DES TEXTILES ARTIFICIELS SOC. AR.L. June 21, 1951 [Aug: 4, 1950], No. 14795/51. Class 120(2) The reciprocating traverse guide for a bundle of rayon filaments which are to be wound with an alternating twist on to a spinning bobbin comprises a roller having a hub 1 or 5 of hard material, e.g. Ebonite, bored at 2 for the reception of its supporting fin 8 furnished with concentric, closelyspaced flanges 3, 4 or 6, 7 or resilient material, e.g. rubber, which guide and grip the bundle of filaments so that the bundle is twisted first by one flange and then by the other as the traverse guide is reciprocated. The dimensions and slope of the space between the flanges may be such that the opposite twists in the filament bundle are separated by very short untwisted portions. Twists of the order of I 200 turns per metre are stated to be obtainable. French Specification 860,530 is referred to.
Patent GB-1516297-A (GB)
Title: Apparatus for handling sheets of glass
IPC: B66C1/48
Filed: 1975-06-25
Abstract: 1516297 Lift actuated grippers H P NEEF 25 June 1975 [3 April 1974] 14877/74 Heading B8H Apparatus for handling sheets of glass comprises a lifting beam (1) Fig. 1 (not shown) and a pair of grippers 7 suspended by respective cables (3) from pre-selected position on the beam. Each gripper comprises a pair of pivoted links 9 with handles 8 to receive loops 3a at the ends of a cable (3) and jaws 12 each pivoted at 11  to a respective link 9 and further connected to the other link by a pin and slot connection 13, 14.
Patent GB-1208531-A (GB)
Title: Hairspring
Inventor: BERTHOUD LOUIS WILLIAM
IPC: G04B17/06
Filed: 1969-03-21
Abstract: 1,208,531. Hairsprings. L. W. BERTHOUD. 21 March, 1969 [25 March, 1968], No. 14890/69. Heading F2S. [Also in Division G3] A hairspring for the balance of a watch has its innermost turn formed as a closed circular loop. The hairspring is fixed directly or by the intermediary of a collet to the balance staff, the fixing being effected by sticking, crimping or soldering. The centre of the innermost turn may coincide with the centre of gravity or the geometric centre of the hairspring.
Patent GB-798344-A (GB)
Title: Electrical control apparatus
Inventor: WESTBROOK LOWELL VICTOR
Filed: 1956-05-14
Abstract: 798,344. Controlling burners. BARBERCOLMAN CO. May 14, 1956, No. 14968/56. Class 75(1) [Also in Groups XXXVI, XL(b) and XL(c)] Apparatus for detecting a burner flame utilizes the electrifying property either of the flame or of a photo-electric cell illuminated by it. A vacuum or gas triode 10, having a relay 12 in its anode circuit, is supplied with alternating voltage from winding 15 of a transformer, but conduction is prevented by an antiphased voltage from winding 19 on the grid. A third winding 30 increases the voltage fed to an electrode 22 in the flame 13. The flame current on positive half cycles charges the capacitor 21 sufficiently to overcome the antiphased grid bias so that the valve conducts and energizes relay 12. Resistors 25, 26 prevent spurious release of the relay by a flickering flame by increasing the discharge time of capacitor 21. In the event of a bilateral conducting path or a short circuit occurring between the electrode and the burner, resistor 29 and capacitor 21 introduce sufficient phase shift of the voltage from winding 30 to prevent spurious operation. Resistor 29 also limits the current in the event of the operator contacting electrode 22. In a modification (Fig. 3, not shown), the winding 19 is coupled across the capacitor 21 via another capacitor. A D.C. path to the grid is provided by an extra resistor connected across the flame circuit.
Patent GB-863771-A (GB)
Title: Improvements in or relating to the treatment of leather with organopolysiloxane compositions
IPC: C14C11/00
Filed: 1959-05-01
Abstract: 863,771. Coated leather. SOC. DES USINES CHIMIQUES RHONE-POULENC. May 1, 1959 [May 12, 1958], No. 14999/59. Class 140. [Also in Group IV (a)] A flexible glossy coating is formed on leather by applying thereto a composition comprising, by weight: (a) 4 to 30% of a methylphenylsiloxane resin having a ratio of methyl and phenyl radicals to silicon of 1.3 to 1.6, a ratio of phenyl radicals to silicon of 0.4 to 0.7, and from 1 to 5% of Si-bonded OH groups, and having, in 70% by weight solution in toluene, a viscosity below 120 cs. at 20‹ C. ; (b) 1 to 20% of a wholly organic film-forming resin which dries to a glossy film in ambient air; and (c) 50 to 95% of a volatile solvent for the resins (see Group IV (a)). Resins (b) specified are polyvinylacetals having a softening point between 50‹ and 65‹ C., e.g. polyvinyl butyrals and hexanols having a degree of acetalization of from 95 to 100%, and solid acrylic and methacrylic polymers having a softening point between 50‹ and 80‹ C. Solvents specified are ethyl and butyl acetates, xylene, isopropanol, acetone, methylethylketone and any mixture thereof. The compositions may be applied as by pad, brush or domestic sprayer, or, where the solutions are compatible with propellants such as butane or chlorofluoromethanes, as aerosols. Perfumes, dyes and pigments, e.g. bronze powder, may also be added. Examples are given.
Patent GB-1223563-A (GB)
Title: Improvements in ink reservoirs for printing presses
Inventor: SURBROOK LOUIS MATTHEW
IPC: B41F31/04
Filed: 1967-04-01
Abstract: 1,223,563. Inking apparatus. LINOTYPE & MACHINERY Ltd. 20 June, 1968 [1 April, 1967], No. 15035/67. Heading B6C. In a roller and ductor blade inking device applied to a printing press the ink fountain comprises the side frames of the press, the rotatable roller 13 and the flexible ductor blade 10 supported on a pivotally mounted body 1. The body mounting the blade is swingable within the press side frames to allow clear access to the roller and blade for cleaning purposes. The degree of ink transference to the roller 13 is controlled by the pressure of the blade against the roller at selected points along its length by means of a plurality of screws 14.
Patent GB-669243-A (GB)
Title: Baby exerciser
IPC: A47D13/10
Filed: 1950-06-19
Abstract: 669,243. Baby jumpers. WILLIAMS, M. D., and WILLIAMS, W. P. June 19, 1950 [Sept. 12, 1949], No. 15224/50. Class 132 (i). A child's exerciser, adapted to be resiliently supported, comprises a flexible seat shaped as shown and having a pair of leg openings 17, flexible sides and relatively stiff reinforcing members 18, 19 at the top of the front and back. As shown, the seat is made from a piece 10, Fig. 7, of canvas or the like, by making darts 16, folding in the reinforcing members and sewing along lines 11b and 14a and joining edges 11a and 15a. A retaining strap 24 is provided to hold the child in the seat which is suspended as shown in Fig. 1.
Patent GB-490323-A (GB)
Title: Improvements in and relating to methods of and apparatus for mounting filaments of electric incandescent lamps and similar devices
IPC: H01K3/06
Filed: 1937-06-01
Abstract: 490,323. Mounting electric incandescent lamp and like filaments. BRITISH THOMSON-HOUSTON CO., Ltd. June 1, 1937, No. 15225. Convention date, June 1, 1936. [Class 39 (ii)] In mounting a lamp filament so that it is positioned accurately upon its leading-in wires, for use more particularly in projection and automobile lamps, a lamp stem 12 is mounted in a holder 13 in a predetermined position relatively to a stop 27 on a tray 11 which carries a number of filaments 10, and one of the filaments is caught in an aperture 25 in a manually operated tool 24 which is manipulated to engage the filament and slide it until its ends register with the ends of the pair of leading-in wires on the stem to which they are to be attached. In the example three leading in wires 14-16, with their ends offset at right-angles, are provided in the stem 12, a filament being attached first to the pair 14, 15, after which the stem is rotated through 180‹ to position the pair 15, 16 for the attachment thereto of a second filament, the method of attachment being. by electric welding. The ends of the filaments on the tray are at right-angles to the body of the filament, one end being taken from the top of the coil and the other end from the bottom, so that when in position for welding, one end of the filament is above and the other below its respective leading-in wire. A filament is thus positioned with its ends above a welding-electrode 17 located in a groove in the frame 19 of the apparatus, accurate positioning being ensured by straddling the ends of the filament about the stop-plate 27. While the lamp-stem 12 is held by one hand of the operator and the filament 10 held in position by the tool 24 in the other hand, the welding-electrodes 29, 30 are moved downwardly by a pedal-operated link 41, which swings a lever 37 connected by springs 38, 39 respectively to pivoted arms 31, 32 carrying the welding-electrodes. The arrangement is such that the electrode 29 engages and welds its co-operating leading-in wires and filament ends before the other parts are engaged by the electrode 30, the excess movement of the arm 37 after the engagement of the electrodes with their respective parts being taken up by the springs 38, 39. Flexible cables 43-45 connect the electrodes to their controlling-circuits. The device may be modified for use with V-shaped filaments, which necessitate a manipulating-tool with a V- shaped groove to engage them, and a form or projection of corresponding shape to engage the filament on its supporting-plate during welding.
Patent GB-572726-A (GB)
Title: Improvements in or relating to apparatus for cooling or attemperating oil or other viscous liquids
IPC: F16N39/02
Filed: 1940-10-15
Abstract: 572,726. Cooling radiators for aircraft &c. STEADMAN, C. S., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 15, 1940, No. 15271. [Class 64 (iii)] In an air-cooled oil cooler having a pressure operated bye-pass valve 6, the shutters regulating the air flow through the matrix 2 are controlled by a thermostat 13 influenced solely by the temperature of the oil issuing from the matrix and unaffected by the flow of hot oil which may pass through the bye-pass to the common outlet 14. When the oil in the matrix is congealed, oil entering the cooler through the inlet 4 passes through the bye-pass 3 around the matrix, and when the oil in the matrix has been warmed sufficiently to establish a free flow &c. then heated to a predetermined temperature, the thermostat, which is influenced by the stream of oil from the outlet header 11, operates to open the air shutters. The thermostat may be placed outside the outlet conduit and supplied with oil from the conduit.
Patent GB-347028-A (GB)
Title: Improvements in, and relating to, stoppers for bottles
IPC: B65D47/06
Filed: 1930-05-19
Abstract: 347,028. Pouring stoppers for milk bottles. BEADLE, E., 60, Grove Road, Mitcham, Surrey. May 19, 1930, No. 15284. [Class 125 (iii).] Relates to pouring stoppers for milk bottles &c. According to the invention the stopper comprises two domed and flanged discs A, B, with a pouring spout E and a vent hole F and an intermediate resilient washer C which is pressed in the mouth of the container to make a fluidtight joint therewith. The discs are secured together by a rivet D.
Patent GB-1172711-A (GB)
Title: Projection Stage Apparatus.
Inventor: WRIGHT JOHN S
IPC: G03B21/132
Filed: 1967-04-04
Abstract: 1,172,711. Optical projection apparatus; films. J.S. WRIGHT. April 4, 1967, No.15357/67. Headings G2C and G2J. A projection stage 36 on the base 16 of an overhead projector supports a frame 34 which receives a cartridge 40 containing a transparent film bearing diascopic images, not necessarily photographic, the frame comprising a motor for winding film from the storage spindle in the cartridge against a constant re-winding torque applied to the spindle by a spring motor mounted in the frame independently of the cartridge. The film passes beneath a hinged transparent window 164 on which the operator may write with a greasy pencil for projection. Each frame of the film bears written notes in the margin which are visible to the operator only. The square-section cartridge 40 is placed in the recess 38 of the frame 34, the free end of the film being attached to a spindle (122, Fig.13 not shown), resting in open slots in the ends of the cartridge. The spindle (66) is held against rotation by a locking key engaging radial teeth on one of the ends. Head (106, Fig.11 not shown), of a coarse pitch screw (108) is turned until its end (110) disengages the spring-loaded clutch element (72) splined to the reel (76) to which torque is applied by spring (100) on reel (102), and disengages friction clutch (80), (82) holding reel (76). The film end on spindle (122) is now drawn over guide rolls beneath window 164 and engaged with chuck (136) of a shaft (138, Fig.6 not shown), driven through worm gearing (140), (142) by a motor. Rotation of wheel (152) cams friction clutch (140, 141) into engagement, and spindle (122) may then be driven to advance the film when the motor is actuated by button switch (158). Rewinding occurs when the clutch (140, 141) is disengaged by wheel (152).
Patent GB-1451169-A (GB)
Title: Omnidirectional loudspeaker
IPC: H04R1/34
Filed: 1974-04-08
Abstract: 1451169 Loudspeakers WIGO GOTTLOB WIDMANN & SOHNE GmbH 8 April 1974 [30 Aug 1973] 15376/74 Headings H4J and H4X An omnidirectional loudspeaker includes a two-part spherical housing 9, 10 containing in the junction plane a baffle 8 forming with the solid walled part 10 an airtight enclosure for a low frequency radiator 1 and supporting on a common axis with the radiator 1 different frequency range radiators 3, 6 and intermediate sound dispersion members 2, 4, 5. The housing part 9 is of sound permeable material which may extend over the other part 10 and the loudspeaker may be free-standing or suspended by a mounting 7.
Patent GB-1167632-A (GB)
Title: Writing Instruments
Inventor: WAKAI NOBORU
IPC: B43K5/18
Filed: 1967-04-04
Abstract: 1,167,632. Reservoir marking instruments. DAI NIHON BUNGU K.K. [trading as JAPAN STATIONERY CO. Ltd.]. 4 April, 1967, No. 15389/67. Heading A4K. In a marking instrument, any ink leaking around felt nib 10 at hole 46, is trapped in chamber 43. The ink reaches hole 46 through slots (47), when close-fitting sheath 20 is retracted by pressing the tip of nib 10 against the action of spring 50. Holes 22 enable the ink, trapped in chamber 43 gradually to percolate back into the reservoir 30, when the instrument is restored to the upright position.
Patent GB-221564-A (GB)
Title: Improvements in or relating to cinematography
IPC: G03B21/32
Filed: 1923-06-13
Abstract: 221,564. Pennington, L. T. M. June 13, 1923. Cartoon and like cinematograph films, producing.-Films are prepared from dummy figures or objects &c. with the aid of a movable platform, the parts of the figures &c. being supplied to each of a succession of spaces on the platform in turn and being progressively arranged as the platform is moved to bring them into position for photographing. The platform may slide or rotate in a step-by-step manner, and, as shown, comprises a turntable A carrying a thin sheet of magnetic metal or textile fabric C above electromagnets D. The turntable is rotated by hand or by an electromotor and is stopped at each quarter turn by a spring-pressed latch E. Its surface is divided into four sectors, and operators around the table respectively place the pieces of the figures &c. into each sector, roughly assemble the pieces, arrange them more accurately, and photograph them. The pieces may be wholly or partly of magnetic material to enable the electromagnets to assist in retaining them in position, and parts of the surface may be movable vertically. Alternatively, and to retain the pieces in position, the surface may carry a soft or dough-like material, or may be of gauze or the like stretched over an air chamber connected to an exhauster.
Patent GB-1532326-A (GB)
Title: Apparatus for electrically connecting a first wire to a second insulation clad wire
IPC: H01R4/24
Filed: 1977-04-14
Abstract: 1532326 Connecting wires MOLEX Inc 14 April 1977 [6 May 1976] 15460/77 Heading H2E A first wire 14 is connected to an insulation clad second wire 16 by means of a connector comprising a unitary terminal 18 having a rigid portion provided with wire trap means, e.g. resilient leg portions 30, 32, and a first insulating cutting edge 40. The terminal 18 also includes a resilient portion 38 having a second cutting edge 42 displaceable towards the first. A housing 20 for the terminal has a wire loading slot 52, a first compartment for the resilient portion 38 having a cam surface 60 for moving surface 42 toward surface 40 so as to effect electrical contact with the second wire 16 in slot 52 as the terminal is pushed into the housing 20.
Patent GB-131195-A (GB)
Title: Improvements in Artificial Limbs.
Inventor: SMITH EDMUND
IPC: A61F2/58
Filed: 1918-09-26
Abstract: 131,195. Smith, E. Sept. 26, 1918. Ball-jointed hinges.-A joint for artificial limbs, more especially arms, comprises a hollow bemisphere 1, Fig. 1, adapted to movably fit in a cupshaped hollow of a container 3 and adjustably secured by a bolt 8 with washers 11, 13, and a lock-nut 18. Either the hemisphere or the container is secured to some portion of an artificial limb so as to enable the limb to be moved. For quick attachment to the hemisphere of a limb, such as a hook 30, Fig. 3, the open end 24 of the hemisphere is formed with a partly cut-away thread 25 and is readily engaged with the partly cut-away thread 28 of the limb 30 by a sliding and rotary motion. To allow a latitude of adjustment the bolt hole 6 in the hemisphere 1 is enlarged and a washer 7 fitted. The washers 11, 13 have tapered or helical faces as shown, and the upper washer is clamped by a projecting arm 15. The lock-nut 5 has split ends 18 which are tightened by a screw 19.
Patent GB-727971-A (GB)
Title: Improvements relating to machines for digging ditches, trenches and like excavations
Inventor: TOPE EDWARD RICHARD
IPC: E02F3/20
Filed: 1951-07-02
Abstract: 727,971. Digging trenches. TWOSE (MANUFACTURING), Ltd., E. V., [formerly TWOSE, Ltd., E. V.]. ,July 31, 1952 [July 2, 1951], No. 15684/51. Class 6 (1). [Also in Group XXI] A trench-digging machine has a disc cutter 12 disposed between disc cutters 11 and 13 which make cuts that define the sides of the trench to be excavated. The disc cutters 11-13 are rotatably supported on bars 8-10 that are vertically adjustable in brackets 5 - 7 mounted on and secured in anv desired position along a bar 4 of the frame of the machine. The edge of the disc cutter 12 extends into the bifurcation of the nose portion of a plough 16 at the rear of the disc cutters. As the machine moves forward the disc cutters rotate, owing to the frictional resistance existing between them and the ground, to form cuts in the ground. The soil between the cuts is then completely freed by the plough 16 and discharged from the plough to the side of and clear of the trench by oppositely rotating turn-out discs 19, 20. The frames supporting the turn-out discs are pivotally connected to the frame of the machine and supported on skids.