baber/WOPTO huggingface dataset:
Patent GB-962780-A (GB)
Title: Deaf aid
IPC: H04R25/02
Filed: 1963-02-01
Abstract: 962,780. Deaf aids. H. WULLSTEIN. Feb. 1, 1963, No. 4160/63. Heading H4J. In a deaf aid in which the amplifier is located behind the ear the microphone is located in the external auditory mealus, i.e. the passage leading from the aurile to the ear drum. Fig. 1 shows a section of an ear showing the ear drum 2 and the microphone 6 located in the meatus 3, the microphone being carried in an ear fitting 5 which is shaped to fit the individual meatus. The amplifier is carried behind the ear and the receiver may be located with the amplifier and connected with the ear by means of a plastic tube 7 leading past the microphone through the ear fitting 5 or alternatively, Fig. 3 (not shown), the receiver may be located in the ear fitting on the side of the fitting remote from the microphone and adjacent the ear drum.
Patent GB-130674-A (GB)
Title: Improvements in or relating to Fuzes for Projectiles.
Inventor: COLE WALLACE JAMES
IPC: F42C1/04
Filed: 1918-03-11
Abstract: 130,674. Cole, W. J. March 11, 1918. Projectile fuses.-Relates to percussion fuses in which the firing is mechanically delayed after impact has occurred. According to the invention, the fuse comprises a striker actuated by a spring which is cocked by the forward movement of an inertia member on impact, the release being initiated by the movement of this inertia member but delayed by the action of a second inertia member which opposes the spring pressure. In the fuse illustrated, a striker F actuated by a spring G bears against two rotary bolts H, one of which is shown separately in Fig. 6. The spring is normally uncompressed, but, on impact, an inertiapiece A slides forward and cocks the spring. At the same time, the arms of a fork integral with the piece A (Fig. 5), which arms normally engage with the bolts and prevent their rotation, bring notches A<1> therein to coincide with the bolts, setting them free. The release is, however, prevented for a time by the pressure upon the bolts of pins K' carried by an inertia member K, which advances against the action of a spring L. When this spring causes the part K to recoil, the bolts are fully released, and the firing-pin operates; the delay is proportionate to the resistance encountered. The delay device may be in the form of two independent spring-controlled members, and, in further modifications, the springs may act in the same direction as the inertia of these members, or the springs may be dispensed with. Centrifugal bolts such as J, Fig. 1, are provided to lock the inertia-piece A in its retracted or its advanced position. A combination of a centrifugal bolt and a pressure spindle operated by the propellent gases may be used.
Patent GB-783631-A (GB)
Title: Improvements in or relating to electric circuit arrangements for starting and operating low pressure electric discharge lamps
Inventor: CATES JULIUS
IPC: H05B41/04
Filed: 1955-02-14
Abstract: 783,631. Supply systems for space discharge apparatus. GENERAL ELECTRIC CO., Ltd. Feb. 13, 1956 [Feb. 14, 1955], No. 4313/55. Class 38 (4). A D.C. system for starting and operating lowpressure discharge lamps 1 comprises a relay having a winding 2 in series with the lamps and normally-closed contacts 6 between the electrodes of each lamp so as to complete a heating circuit therefor. When energized, the relay opens its contacts and thereby breaks the current through an inductance (which may be provided by the relay winding) connected in series with the lamps so as to generate a voltage pulse for starting the lamps. The relay does not open its contacts until the current passing through its winding exceeds one-third of the maximum current which would flow therethrough if the contacts were held closed with the circuit connected to a supply at the minimum voltage which will give rise to starting of the lamps. In this manner the relay is prevented from operating before the electrodes have been sufficiently heated, or the lamp is prevented from starting with the electrodes cold. A ballast resistor 3 may be replaced by seriesconnected tungsten filament lamps, or, in some cases, the ballast resistance may be afforded solely by the relay winding. In the event of lamp-failure, repeated operation of the relay is prevented by means of a lock-out switch of the bi-metal type.
Patent GB-511056-A (GB)
Title: Improvements in protectors for the walls of pneumatic tyres
IPC: B60B7/01
Filed: 1938-02-12
Abstract: 511,056. Wheel tyres. LAMBERT, W. H Feb. 12, 1938, No. 4436. [Class 144 (ii)] A device for protecting the side-wall of a pneumatic tyre comprises a series of resilient plates connected by relatively rigid ring secured to, or constituting, a side-flange of the wheel rim. In the form shown in Figs. 1 and 2, the plates 2 are integral with a rigid ring 1 bolted to the rim-flange 3b. In a modification, the ring 1 is adapted to form a tyre-retaining flange secured to the rim-base by means of a split ring. In the modification shown in Figs. 4 and 5, the plates 2b are pivoted to lugs 1a on the ring 1 and have extensions 2d bearing against the ring whereby they are normally urged towards the tyre. The outer edges of the plates may be connected by a flexible band or the like. According to a further modification (not shown), the ring 1 is extended for attachment by the bolts used for securing the wheel. Specification 401,345 is referred to.
Patent GB-506854-A (GB)
Title: Improvements in or relating to chairs or like articles of furniture
IPC: A47C1/035
Filed: 1938-02-12
Abstract: 506,854. Adjustable seats. LORENZ, A., and GAAL, A. Feb. 12, 1938, No. 4486. [Classes 52 (i) and 52 (ii)] The adjustable seat 8 is pivoted (a) about its front edge 7 to casings 6 secured to the supporting frame 1, and (b) about its rear edge 9, to the back 10 of the chair, which is pivoted at 4 to side members 2 pivoted at 3 to the frame 1, so that as the chair is lowered, the inclination of the chair back to the seat is varied and the point of support 4 of the chair back is guided downwards along a circular arc 40. The back 10 has a telescopic extension 11 carrying a pivoted head rest 12. A rod 36 actuated by the movement of the side members 2 turns a wheel 35 and swings a foot-rest 16 from under the seat. The chair is returned to the upright position by laminated springs 17 which are housed in the recessed tubular frame 1 and are secured to slides 21 adjustable within the arms 2 by a screw 23. The outermost lamination carries a stop 18 which is ultimately thrust against a roller .19 bearing on a guide 20. A pivoted arm 27 carrying a counterweight 29 is used to lock the chair in the upright position by bearing on the spring 17 at a height which does not permit flexing. Fig. 2 shows a chair with a frame 41 providing a continuous curved guide for the adjustable back 46, and modified linkage 71, 74, roller 76 and guide 70 for moving the foot-rest 44: For returning the chair to the upright position a rubber cord is housed inside the frame 41, one end being secured to a short' tubular slide controlled by an adjuntment screw and pressure spring. Levers 67 'with knobbed ends 68 actuate. the adjustment screws 57.
Patent GB-593707-A (GB)
Title: Improvements in or relating to curtain suspenders
IPC: A47H5/032
Filed: 1945-02-22
Abstract: 593,707. Drawing curtains. GREEN, A. H. Feb. 22, 1945, No. 4505. [Class 52(v)] A curtain suspender comprises an endless flexible cable 11 tensioned and supported horizontally between two cable pulleys 12, 13 rotatable about a vertical axis and adapted to be attached to a window frame 14, two equal portions of the cable being disposed parallel to one another, and a pulling cord 15 being provided which is attached at a point intermediate its length to one of the portions of the cable with which its middle part is parallel and which is supported by two cord pulleys 16, 17 each rotatable about a horizontal axis and mounted near the pulleys 12, 13 respectively, the two end parts 18, 19 of the cord 15 hanging from the cord pulleys and available for manual or mechanical operation to cause the cable to travel round the pulleys to open or close the curtains. Each cable pulley is mounted on a bracket 40 consisting of an attachment plate 57 and a slotted platform 41. The bushed axle of the cable pulley, which is formed as a bolt the head of which abuts the under surface of the adjusting lever 44, is horizontally adjustable in the slot. The two ends of the cable 11 are secured in the clamp 20 arranged on the inner part of the endless cable and immovably attached to the pulling cord 15 the free ends of which pass over cord pulleys 16, 17 rotatable about horizontal axes in housings 49 on the brackets 40. When one or other end 18, 19 of the cord 15 is pulled the cable will move round the cable pulleys, outer and inner parts of the cables moving in opposite directions and opening or closing the curtains 32, 33 by making the clamp 20 to which the inner edge of the curtain 32 is attached by the loop 31 move in the opposite direction to the attachment clip 34 to which the inner edge of the curtain 33 is similarly attached. The outer edges of the curtains are attached by loops to hooks 55, 56 on the brackets 40. A pelmet 59 is threaded on a pelmet cord 53, which may incorporate a spring, the knotted ends 54 of the cord being secured in notches in the horns 50, 51 of the brackets 40. An additional support for the cable may be arranged midway between the brackets 40 and in a modification the axle 43 is welded to the lever 44. The Provisional Specification contains a reference to radially-projecting flanges on the cable pulleys to retain the cable in place.
Patent GB-705339-A (GB)
Title: Improvements in or relating to radar receivers
Inventor: YOUNG LEO
IPC: G01S7/35
Filed: 1952-02-20
Abstract: 705,339. Waveguides. DECCA RECORD CO., Ltd. Oct. 29, 1952 [Feb. 20, 1952], No. 4509/52. Class 40 (8). [Also in Group XL(c)] The output in the waveguide 10, Fig. 1, from the local oscillator in a superheterodyne radar receiver, is divided between waveguides 14 and 15-in each of which are mixer crystals 16 in holders 20-by the matched power divider comprising thin partition 13 dividing guide 10 into the two equal guides 11 and 12, attenuation of the local oscillator signal between the local oscillator and the two mixers being provided by separate resistive attenuators 21 in the waveguides 11, 12. Also the coupling between the mixers is thus additionally reduced. Into waveguides 14, 15 at the ends remote from the mixers 16 are fed respectively the received radio frequency signals and a part of the transmitter output. An end of each of the cross bars 17 of the crystals 16 extends as a probe 18 into the divided guide ; the other ends 19 are used to feed out the intermediate frequency signals obtained from the mixing of the received signals and part of the transmitted signals respectively with the local oscillator signal. Any small mismatch at the junction of the undivided guide 10 with the two portions 11, 12 due to the finite thickness of partition 13 is matched out by suitable shaping of the edge 22, Fig. 2.
Patent GB-1365464-A (GB)
Title: Liquid detergent compositions
IPC: C11D1/02
Filed: 1973-01-30
Abstract: Concentrated heavy duty liquid detergent compositions containing a mixture of a nonionic surfactant, an anionic surfactant and ethanolamine and being especially adapted to stain and soil removal from fabrics, either applied directly to such fabrics before washing or employed as detergent compositions for conventional fabric laundering.
Patent GB-709990-A (GB)
Title: An improved thermometer scale
IPC: G01K1/04
Filed: 1951-02-26
Abstract: 709,990. Thermometer scales. RAYNER, E. F. May 23, 1952 [Feb. 26, 1951], No. 4597/51. Class 97(3) A thermometer scale adapted to be secured to a thermometer tube by a band or bands is formed of a plastic material, e.g. celluloid, which is too flimsy for such purpose when in a flat strip but is rendered sufficiently rigid by being given a substantially V-shape, the central rib of this scale having a hole or holes A for receiving the said band or bands and a further hole B for allowing access of air to the thermometer bulb. The flat strip may be made V-shaped by placing it horizontally on a V-shaped mould and then pressing downwardly with a heated steel ruler. The scale may be clipped to the scale by metal bands, the two ends of each band passing through a hole A and then being turned away from each other and then pressed against the back of the scale. Specification 484,256 is referred to.
Patent GB-182765-A (GB)
Title: Improvements in and relating to belt tightening devices
IPC: F16H7/14
Filed: 1922-02-16
Abstract: 182,765. Hoffmann, F. July 2, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Addition to 172,652. Belt gearing; tension arrangements.- In belt - tensioning means in which the tension varies automatically with the power transmitted, a driving-shaft a carries a gear-wheel b engaging a gear - wheel c turning with a belt pulley d on a spindle /carried in a casing h freely rotatable concentric with the shaft a. A spring m connects the casing h with the framing to supply initial tension to the belt j, which tension increases automatically with the load. When the pulley d is sufficiently large, it may surround the gear-wheels b, c and act as a protective casing therefor.
Patent GB-193416-A (GB)
Title: Improvements in steam generators with a rotary layer of water
IPC: F22B5/00
Filed: 1923-02-16
Abstract: 193,416. Aktiebolaget Atmos, (Assignees of Blomguist J. V., and Wessblad, K. F.). Feb. 20, 1922, [Convention date]. Rotary boilers. - A water-carrying device is fitted inside a tubular element and is rotated at such a speed as to cause the water to cover the inner surface of the element in a continuous layer. Plates 2 are secured inside a rotary tubular boiler shell 1. The shell may be fixed and the water rotated and distributed by blades rotated by external means.
Patent GB-880613-A (GB)
Title: Apparatus for applying pressure to a moving flexible band or strip
IPC: D21G9/00
Filed: 1959-02-10
Abstract: 880,613. Pressing paper etc.; extensible paper. CLUPAK Inc. Feb. 10, 1959 [May 19, 1958], No. 4667/59. Class 96. Apparatus for pressing a moving web of paper &c. to make it extensible, Figs. 1 and 2, comprises a moving flexible band 11, e.g. an endless rubber belt, passing with the web W through the nip N1 between a rotatable, e.g. heated, lower cylinder 18 and an upper rotatable cylinder 17, which can be moved towards or away from the cylinder 18; movement towards the latter being limited by stop mechanism 60. Pressure exerted by diaphragms 40, 41, 42, 43 and 44, actuated by compressed air &c., is transmitted to the cylinder 17 through thrust rods, each associated with stop mechanism, and yokes 30, 31, 32, 33 and 34 pivoted to the thrust rods about pivots 50, 51, 52, 53 and 54, whose axes are substantially parallel to the direction in which the band 11 passes through the nip. The yokes are pivoted about pivots 20e, 21e, 22e, 23e and 24e to pairs of arms 20c pivoting about an axle 20d parallel to the nip. The cylinder 17 is mounted in bearings 17a connected by resilient connections P to the outer arms. Pairs of jockey rollers 20a, 20b (also indicated by the numerals 20, 21, 22, 23 and 24 in Fig. 2) are mounted on each pair of arms 20c to engage the upper periphery of the cylinder 17. In an alternative construction, Figs. 7 and 8, rotation of the upper cylinder 201 is prevented by clamping it in a housing 270, bridging arms 210, pivoting about an axle 223. The arms are pivoted to a yoke 234, which is pivoted to a thrust rod 236. The cylinder 201 has an outer shell 273 pierced by a plurality of small lubricating apertures communicating with grooves . . . 275, 276, 277, 278, 279 . . . in an inner shell 274. Lubricating liquid, such as water, is fed from a source T, through a valve V and conduits 280, 281, 282... into the grooves. Canadian Specification 546,471 is referred to.
Patent GB-175646-A (GB)
Title: Improvements in the apparatus for preparing infusions of coffee
IPC: A47J31/06
Filed: 1922-02-17
Abstract: 175,646. Polsi, A. Feb. 19, 1921, [Convention date]. Infusing - machines. -In a coffee-making machine of the type in which a chamber containing a strainer for holding ground coffee is attached to a spout through which hotwater or steam is supplied, the chamber contains a number of compartments. each of which may contain a charge of coffee for a separate cup. In the form shown, four chambers 6 are formed in a receptacle detachably secured to a head 3 on the steam or water-supply pipe by means of arms 2, hooks 4, and pivoted handles 5. The chambers 6 are provided with delivery spouts and with strainers 7 on which the ground coffee is placed. The head 3 is provided with a strainer 9 to distribute the hot water over the coffee, and a shaped piece for distributing the water among the chambers. The Specification as open to inspection under Sect. 91 (3) (a) shows a form with one compartment only, and states that the strainer is attached directly to the chamber instead of forming the bottom of a separate inner vessel. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1190854-A (GB)
Title: Lampholders
Inventor: SZAFRANSKI ROMAN
IPC: H01R33/95
Filed: 1968-01-30
Abstract: 1,190,854. Lampholders. THORN LIGHTING Ltd. 30 Jan., 1968, No. 4806/68. Heading H2E. A lampholder for a double-ended lamp comprises an insulating knob 15 having a diametral slot 23 which receives contact pins at one end of the lamp, and a cuboid extension 17 located in a complementary recess 18 in a second insulating knob 16. When the knob 15 with the lamp is rotated through a right angle, nubs 25 on the knob 15 are disengaged from recesses in spring contacts 26 which then engage the lamp pins; simultaneously, bosses 27 on the knob 16 depress spring contacts 28 against the bias of springs 32 to engage contacts 31, and so, since contacts 26 and 28 are interconnected, complete a circuit to the lamp. The engagement of contacts 28, 31 occurs in a closed chamber defined by the knob 16 enclosing a central bore of an insulating plate 14 which is located in a easing 13 with outwardly extending flanges 22 of the plate 14, and a lid 11 being screwed to the plate 14. The lamp pins are received in the slot 23 through a slot in the casing. An earth spring (Figs. 4, 6, not shown) is electrically connected to a fixing support 34.
Patent GB-462706-A (GB)
Title: Improvements in or relating to cathodes for electron discharge devices
IPC: H01J1/146
Filed: 1936-02-17
Abstract: 462,706. Thermionic cathodes. RADIO CORPORATION OF AMERICA. Feb. 17, 1936, No. 4808. Convention date, Feb. 23, 1935. [Class 39 (i)] A directly or indirectly heated cathode consists mainly of one of the metals tungsten, molybdenum or tantalum in combination with chromium and an oxide of one of the following : thorium, cerium, yttrium and lanthamun. One form consists of an alloy consisting of molybdenum or tungsten with specified amounts of thoria and chromium. In other forms the chromium and oxide as a mixture are applied as a coating to the main metal; in other modifications, the chromium is coated on to a thoriated metal, or the metal is first chromium plated and then a coating of thoria provided on this plating. The filament may be seasoned by applying normal voltages for a period in an oscillating circuit. The cathode may be coated with emitting coatings of barium and strontium oxide for use in low voltage tubes. The Specification as open to inspection under Sect. 91 states that the oxides of zirconium, uranium, titanium, or vanadium may be used instead of thoria &c. This subject-matter does not appear in the Specification as accepted.
Patent GB-1463163-A (GB)
Title: Seat arm adjustment mechanism
IPC: A47C7/54
Filed: 1974-02-01
Abstract: 1463163 Adjustable armrests TELEFLEX MORSE Ltd 21 Jan 1975 [1 Feb 1974] 04858/74 Heading A4J An aircraft seat is provided with an armrest 1 which is adjustably locked in one of a plurality of positions and which can be raised into a vertically stowed position from a pre-set adjusted position without operating the locking mechanism. The locking mechanism comprises a rod 5 on which an apertured arm 7 is slidably mounted, the rod 5 being slidably mounted in a housing 6 secured to the armrest and bearing against a stop 4 mounted on the backrest. The arm 7 is slidably mounted in a slot 8 in the housing and is acted upon by a spring 9 within the housing to cause the edge 7a of the aperture to frictionally engage the rod to hold the armrest in position. A rod 18 is manually pushed against the locking arm 7 to release the frictional engagement to allow repositioning of the armrest. If an excessive load is applied to the armrest a bracket 20 mounted on the armrest contacts a block 23 mounted on the rod 18 and causes the rod to engage the locking arm 7 and thus release the lock.
Patent GB-556780-A (GB)
Title: Improvements in rafts, particularly for use as aircraft landing ways
IPC: B63B35/50
Filed: 1942-04-14
Abstract: 556,780. Landing-platforms for aircraft. LAT, F. A. M. April 14, 1942, No. 4911. [Class 4] Aircraft landing-ways comprise a platform 1, constructed of sheet sections hinged at positions 5A and 6, the hinge-connecting rods at 5A being supported at their ends on extensible frame works 2 so that when the frame-works 2 are extended as shown (by nut-and-screw operating mechanism or by being drawn out by a winch &c.) the sheet sections will all be horizontal; when the frame-works 2 are collapsed the sheet sections fold down together about their hinges with the hinges at positions 6 below the other hinges. As shown the extensible frame works may have rollers 7A at their lower edges supporting them on rails 8A, carried on ships or landborne; alternatively floats may be attached at intervals along the frame-works to produce a raft-like structure. The platform may carry devices for braking and holding the wheels of aeroplanes and these devices may be carried on a detachable platform capable of supporting an aeroplane away from the main platform:
Patent GB-348687-A (GB)
Title: Improvements in or relating to bobbins
IPC: B65H75/30
Filed: 1930-02-13
Abstract: 348,687. Bobbins. METAL CASTINGS, Ltd., Droitwich Road, Worcester, McCONNEL, F. W., Barbers, Martley, Worcestershire, and NICHOLSON, A. H., of Metal Castings, Ltd., Droitwich Road, Worcester. Feb. 13, 1930, No. 4929. [Class 120 (iii).] A metal bobbin comprising a hollow stem having end flanges or enlargements is formed by casting in two parts separated substantially along a diametrical plane. The stem 7, Fig. 1, is cast in two halves, on to which is cast the spherical flange 12 and flange 15. Bands 20 may also be cast on to the split stem to help keep the two halves together. Fins 9 integral with the flange prevent the latter from turning on the stem 7. A constriction 17 near the upper end of the bobbin provides a bearing for the spindle. The cylindrical flange may be recessed as at 13 to reduce weight, and is provided with a slot 18 for driving purposes. The two halves of the stem may be provided with interlocking flanges 111, 112, Fig. 3, and the end flange 150 provided with a tubular extension 131, which passes through a hole formed in the interlocking flanges, and is burred over or otherwise secured. The preferred method of casting is die-casting.