baber/WOPTO huggingface dataset:
Patent GB-594314-A (GB)
Title: Improvements in variable inductance devices and tuning arrangements including such devices
IPC: H01F21/06
Filed: 1945-02-05
Abstract: 594,314. Wireless receiving apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 5, 1945, No. 2783. Convention date, Feb. 5, 1944. [Class 40 (v)] [Also in Group XXXV] A variable inductor (see Group XXXV) comprises a coil 1 having turns lying completely on the surface of a cylinder, and a cover 3 mounted to rotate about the axis to vary the inductance of the coil. The core 3 may be made in segments of substances having different properties, and several coils may lie on the cylindrical surface. Fig. 8 shows two coils 8, 9 which may be connected in parallel with coils 16, 18, or condensers 17, 19 by a two-pole switch 15 to provide six-band tuning. Two single coil inductors with coupled cores are described for simultaneous variation of the signal frequency and oscillator circuits of the converter stage of a superheterodyne circuit.
Patent GB-1424944-A (GB)
Title: Motor vehicle energy absorbing apparatus having an impact sensor assembly
IPC: B60R21/01
Filed: 1974-01-21
Abstract: 1424944 Impact switches FORD MOTOR CO Ltd 21 Jan 1974 [28 Feb 1973] 2809/74 Head. ing H1N A motor vehicle energy absorbing apparatus 11 having an impact sensor comprises a cylindrical housing 12 adapted to be mounted on a vehicle frame member 13, a sleeve member 14 telescopically slidable through one end of housing 12, a piston 17 and rod 18 assembly projecting into sleeve 14, passageways 24 in the piston allowing compressible solid material 23 to pass from one side of the piston to the other as the sleeve 14 enters housing 12 under impact conditions, the piston-rod 18 being anchored to the other end of housing 12 by means 26 which is shearable by abutting means 28 to permit axial movement of the piston-rod assembly relative to housing 12 upon impact force in excess of a predetermined value, and switch means 34 mounted in the path of movement of the pistonrod and adapted to close upon being crushed by the latter. As shown sleeve 14 carries a bumper 16, and a switch 36 is operated by movement of sleeve 14 under impacts insufficient to cause shearing of the rim of flange 26.
Patent GB-194092-A (GB)
Title: Improvements in methods of making articles of silica
IPC: C03B19/09
Filed: 1922-01-31
Abstract: 194,092. British Thomson - Houston Co., Ltd., (General Electric Co.). Jan. 31, 1922. Resistance furnaces.-A furnace for making articles of fused silica comprises an exterior wall 9, Fig. 1, a highly refractory interior wall 10 with an intervening layer of heat insulating material 11, and a removable roof 12. The heater consists of rcds of carbon arranged in series and connected to electric conductors. Comminuted silica is placed in a mould 16, which is made of carbon and his suitable shaped core members 21 also of carbon. A short carbon tube 25 which forms part of the upper portion of the mould and receives a pyrometer 26.
Patent GB-100471-A (GB)
Title: Improvements in Artificial Limbs.
Inventor: THOMAS CHARLES WILLIAM
IPC: A61F2/58
Filed: 1916-02-28
Abstract: 100,471. Thomas, C. W. Feb. 28, 1916. Limbs, artificial.-Artificial hands are formed by a pair of hooks having flattened abutting roughened surfaces 14 forming gripping-jaws. The one hook 10 is connected to a stem 9, which is normally prevented from becoming detached from the arm by a sliding spring plate 15, but in some cases the stem may be screwed into a nut on the arm. Dowel pins 20, entering any pair of a ring of holes on the arm, provide for angular adjustment of the hooks in relation to the arm. The other hook 11 has a bowed shank and is pivoted to the hook 10 so that it moves in a plane at about 45 degrees to the plane of contact of the hooks. A curved thumb-piece 22 is connected to shoulder operating-cords to open the gripping-jaws against the action of the coiled rubber cord 13 or other suitable spring. An article, such as a knife handle, is gripped between the hooks and rests with the end bearing against the thumb-piece, and the side against the bowed shank of the hook 11. In a modified construction, the operating-cord is connected to one end of a lever pivoted centrallv at 12 and connected at the other end to the hook 11 by a link. The lower arm c comprises a stump socket fitted with ventilation holes b and pivoted to a saddle/, which is supported by straps passing above and below the biceps, and also by straps j depending from a shoulder cap h positioned by a strap i. The operating-cord passes round a pulley k on the shoulder cap to the operating-strap n. A hollow hand may be shaped so as to pass over the hooks, leaving the thumb-piece free for operation by providing a slot in the wrist.
Patent GB-1061209-A (GB)
Title: Treatment of water to remove hardness
Inventor: TREANOR ANTHONY IGNATIUS JOHN
IPC: C02F5/02
Filed: 1965-01-22
Abstract: Ferrous sulphate is added to phosphate-containing raw water to promote the crystallization of calcium carbonate on nuclei contained in the water when lime is added as the water is flowing upwards in a vessel.
Patent GB-100856-A (GB)
Title: Improvements in and relating to Railway and like Signalling.
Inventor: KERR ANDREW
IPC: B61L3/04
Filed: 1915-09-27
Abstract: 100,856. Kerr, A. Sept. 27, 1915. Track apparatus actuating s i g n a l s other than on trains: rods and, wires for operating signalling- apparatus.-A slip connexion is introduced into the signal wire, and the two parts are connected and disconnected by the operation of treadles by the train wheels, these treadles being pivoted to the rails, and their return movements being controlled by dash-pots, also carried by the rails. The Specification describes the arrangement of treadles and signal devices at a cross-over. The treadle 3<a> is pivoted on a pin t fixed in the rail r, and at the free end a connexion is made to the rod o<1> of a piston sliding in a cylinder o firmly secured to the rail r. The piston is urged upwardly by a spring. Non-return valves and a leakage port are provided to allow rapid depression and slow return of the piston and treadle. The slip connexion comprises two parallel sliding bars f<4>, g, the former connected to the signal cabin, and the latter to the signal. A pawl f pivoted on a lug on the bar f<4> engages the lever g under normal conditions and locks the bars together. A train entering a section depresses a treadle 3<a> and slackens the wire c, permitting the weighted lever c<2> to fall and raise the bar c<3> of the stirrup c<4>, which is pivoted on a spindle c<5>. The bar c<3> engages a pin f<1> on the pawl f and disconnects the bars f<4>, g, so as to allow the signal to go to danger. The projection f<5> on the pawl f is held up by the bar i<3> of a stirrup i, thus preventing resetting of the signal to clear, until the train in passing over another treadle tensions a wire 3<e> so as to rock the lever i<1> and the stirrup i.
Patent GB-1026465-A (GB)
Title: Filter
IPC: B01D35/14
Filed: 1963-01-24
Abstract: 1,026,465. Filters. WALKER MANUFACTURING CO. Jan. 24, 1963 [March 23, 1962], No. 3015/63. Heading B1D. A filter element 12 threadedly connected to a base element 14 with a gasket 30 therebetween adapted to be compressed when said elements are properly assembled, includes a torque indicator located on one of the elements, the torque indicator including a circular pattern on one of said elements, said pattern having corresponding indicia located diametrically opposite one another to indicate visually the extent to which the filter element must be rotated, after initial contact between said gasket and the elements, to accomplish the final tightening of the filter element on to the base element. As shown, the torque indicator comprises repetitive sets of indicia 40, 42 (shown developed in Fig. 4) extending circumferentially around the filter element and so arranged that corresponding indicia are located diametrically opposite one another, whereby after initial contact between said gasket and said elements has been made, the position of one of said indicia may be visually noted to serve as an index point and then the filter element is rotated a final one half turn until the opposite corresponding indicium appears at the index point, thereby indicating that the proper attachment of the filter element to the base is complete. Thus if the mark A of set 40 is uppermost after initial contact, the filter may be rotated until the mark A of set 42 is uppermost. As the two marks are 180 degrees apart on the filter shell 16, this indicates completion of a rotation of one half turn. An index point may be provided on the base if  desired. Alternatively, the indicia may be applied to the base with an index point on the filter element. A by-pass valve 38 is provided on the base 14.
Patent GB-524402-A (GB)
Title: Improvements relating to safety devices for mincing and the like machines
IPC: B02C18/16
Filed: 1939-01-30
Abstract: 524,402. Machinery guards. MACLAUGHLIN, J. A., and McGOWAN, J. Jan. 30, 1939, No. 3069. [Class 80 (iv)] A mincing &c. machine, having a removable cover located sufficiently above the top of the bowl of the machine to permit of feeding in the meat but not allowing passage of the operator's hand or arm, is provided with means operated by the starting and stopping device to prevent the cover from being moved when the machine is in motion, and to prevent the machine from being set in motion whilst the cover is open. The tray 2, from which the meat is fed to the bowl 1 of the machine, has a cover 8 hinged to its rear end 2a and formed with extensions 8a, which, when the machine is running, pass through open-ended slots in a frame-member 10 attached to a slidable shaft 11, which carries the belt-shifting fork of the machine, so that the cover cannot be raised when the machine is running. A stop-bar 15, which is carried by the frame 10 and projects over the cover, also prevents it from rising. When the shaft 11 is moved endwise to stop the machine, the slots in the frame 10 pass clear of the extensions 8a of the cover, and the bar 15 comes into alignment with a slot 16 in the cover, which can then be raised. It may be held raised by a pivoted catch. The projection of the bar 15 through the slot 16 prevents the machine from being started until the cover is lowered.
Patent GB-625302-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H04N5/257
Filed: 1947-02-01
Abstract: 625,302. Automatic control systems. BROADWAY, L. F. Feb. 1, 1947, No. 3114. [Class 38 (iv)] [Also in Group XL (b)] In a cathode-ray tube which may be used for scanning a cinematograph picture for television transmission, wherein the beam current density is so high that an increase causes no increase of the light intensity of the spot, a photoelectric cell detects the quantity of light given out by the spot and indicates it on a meter, this quantity being a minimum when the beam is in focus; alternatively, as shown in the Figure, the photo-cell may maintain the beam in focus. Light from a spot forming a raster on the end of a cathode-ray tube 1 is detected by a photo-cell 6. The focusing of the tube is cyclically varied by a sinusoidal oscillator 13, the output of which is superimposed on the focusing current in the control device 12. If the beam is in focus, the output of the photocell is a series of cusps as shown at 16, but if not, alternate cusps become of different heights. The output of the photo-cell is applied to two gating circuits 17 and 18 fed with gating pulses from two limiters 19 and 20, the limiters being so designed that the positive peaks of the oscillator output are fed to gating circuit 17 and the negative to gating circuit 18. The outputs of the gating circuits are rectified on two peak rectifiers 21, 22 and applied to the grids of valves 23 and 24 fed through a common cathode resistor. The potential at the anode of valve 23 which depends on the difference in signal on the two grids is fed through a D.C. amplifier 29 to refocus the beam. In a simpler embodiment (Fig. 1, not shown), described in connection with the scanning of a film for television, the output of the photo-cell is amplified and indicated on a meter. The operator then manually adjusts the focusing device 12 until the reading of the meter is a minimum. Specification 475,032, [Group XL], is referred to. The Provisional Specification mentions a system wherein the focusing current is cyclically varied until the output of the photo-cell is a minimum and the focusing current locked to this minimum voltage and the scan terminated. The locking may be effected by a device of the type described in Specification 582,503.
Patent GB-803609-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J19/34
Filed: 1957-01-29
Abstract: 803,609. Electrode materials and processing. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Jan. 29, 1957 [Feb. 1, 1956], No. 3127/57. Drawings to Specification. Class 39(1). In order to inhibit thermal emission, an electrode comprises a core material coated with a carbide of a refractory metal as such, which is sintered without melting, and then further coated with a noble metal. In an example, a molybdenum wire grid is cleaned and degassed, and then cataphoretically coated with zirconium carbide powder to 32-38 microns thickness. This layer is sintered in vacuo at 1700‹-2000‹C., and then plated with a platinum layer 1-4 microns thick. This is suitable for tubes having thorium cathodes; with oxide cathodes, gold is preferred for the final layer. Fig. 2 (not shown) compares graphically the thermal emission of various grids, constructed according to the invention and otherwise.
Patent GB-1246752-A (GB)
Title: Automation control device
Inventor: KITTEL CLIVE FRANCIS
IPC: G05B19/12
Filed: 1970-01-22
Abstract: 1,246,752. Programmed control of position. STANDARD TELEPHONES & CABLES Ltd. Jan.22, 1970, No.3169/70. Heading G3N. A step-and-repeat system wherein a number of identical operations are carried out in response to a coded tape, hearing information relating to the operation and instructions relating to spacing between operations in a row and the rows forming an array, is controlled by a device having counters for setting in the number of operations in a row and the number of rows and a logic circuit responsive to the coded instructions for determining the operation of a work-table in order to carry out the succession of operations forming the array. It is stated that the system can be used in microengraving of thin film circuits, component placement, lead bonding, or inspection. It is stated that a work-table can be positioned, or a tool relative to a fixed work-table, or a beam of an electron-beam machine deflected.
Patent GB-1454951-A (GB)
Title: Film cartridge for motion-picture fioms
IPC: G03B21/32
Filed: 1974-01-23
Abstract: 1454951 Film cartridge A ANGELA [trading as LAMIP DI ARUANNO ANGELA] 23 Jan 1974 [25 Jan 1973 21 Nov 1973] 03219/74 Heading B8M (Part B) A cartridge for continuous loop motion picture film has a spool drivable from outside the cartridge, guide means for guiding a loop of film in its passage from a roll on the spool, across an exposure opening, and back to the film roll, a resilient member for pressing the film against the edges of the exposure opening and retaining means projecting towards the spool for maintaining the film roll in position. As shown in Fig. 2 a loop 15<SP>1</SP> of film from a roll 15 supported on the concentric disc of a spool 17 of the cartridge is fed over a fixed or rotatable guide 24 through a film exposure slideway 20 under a spring loaded presser element 21 for projection and back on to the external winding of the roll via a fixed or rotatable guide 25, the drive means comprising lugs or projections 14<SP>11</SP>. Projection is accomplished using an external light source reflecting the beam from an angled reflecting means 26 through a window 22 and the film. The spool is constructed to cause the separation of only the innermost turn of the unwinding film and may be of curved conical profile, Fig. 1, ribs being arranged internally of the cartridge container lid 11 for guiding the film. The spool may alternatively be of frusto-conical cross-section (Figs. 3, 4 not shown) supporting a cup-shaped and optionally spring-loaded presser member (36) and a film levelling element (32) having radial legs (33), (34) lying along the film roll upper surface and located at the inner film winding off point and outer film winding on point respectively. The presser member may be keyed to rotate with the spool, while being axially free.
Patent GB-383256-A (GB)
Title: Improvements to fuel feeding devices for internal combustion engines
IPC: F02M7/12
Filed: 1931-02-02
Abstract: 383,256. Spray carburetters; valves. SOC. GENERALE DES CARBURATEURS ZENITH, 10, Rue Petitot, Geneva, Switzerland. Feb. 2, 1931, No. 3308. Convention date, Feb. 4, 1930. Void [Published under Sect. 91 of the Acts]. [Class 7 (iii).] To control with precision the discharge from the fuel orifice, the control member, suitably shaped, is moved at right-angles or obliquely to the axis of the orifice instead of parallel thereto. Fuel stands normally at the level x-x, Fig. 1, and is discharged through an orifice 3 the output of which is controlled by a member 5 adapted to be moved by a rod 6 at right-angles to the orifice axis. The part 8, Fig. 3, serves as a closure member whereas control is effected by the part 9 which diverges from the wall 4. The member 5 may be fixed and the wall 4 movable. Instead of a single orifice 3, a number of orifices may be controlled, each orifice coming into action before the preceding orifice has reached its maximum output. In Fig. 5, the member 5 is moved across the outlet of the nozzle 1. In Fig. 9, the control member 5 is moved angularly to control the orifice 3. In Figs. 10 and 11, the orifices are formed in the hollow end of a cylindrical member 15 adapted to be actuated either from the air valve spindle 61 through a cam 60, roller 59, lever arms 58, 22, and spring-pressed block 25, or by suction, exhaust pressure or altimetric control. The tube slides through packing 26 and control of the fuel flow is effected by a conical member 17 which serves also to shield the orifices from dynamic effects of the air flow. In a modification, Fig. 14 (not shown), the conical control portion is placed inside the tube. In a further modification, Fig. 15 (not shown), the arrangement shown in Figs. 10 and 11 is placed in the fuel chamber to control the flow to the nozzle. In Fig. 16, the control device 14, 17 of Figs. 10 and 11 is again placed in the fuel chamber 1 to control the flow to the nozzle 67, and it controls also the aerating air which enters through apertures 71.
Patent GB-419052-A (GB)
Title: Improvements relating to roads and the like
IPC: E01C11/16
Filed: 1933-02-03
Abstract: 419,052. Reinforcements for road surfaces. SOC. ANON. DES HAUTSFOURNEAUX ET FONDERIES DE PONT - A - MOUSSON, Pont - a - Mousson, Meurthe-et-Moselle, France. Feb. 3, 1933, Nos. 3330 and 3331. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 27, 1933]. [Class 20 (iv).] A surface reinforcement for roads consists of a plurality of frames 1 secured to a flat base in the form of iron bands 5. Each frame 1 is constituted by a cylindrical or other shaped ring, and is provided, as shown in Figs. 1 and 2, with an integral or separately-formed cross-bar 2 having a recess 3 for engagement by one of a number of bent tongues 4 formed on the bands 5. The bands 5 may be arranged to form a lattice structure, with the intersecting bands connected by rivets 6. In the modification shown in Fig. 8, the frames 1 are cast on the bands 5, and the intersecting bands are connected by cast members 6. The frames may have a tapered upper portion as shown in Fig. 4. The road surface may be formed of cement, asphalt &c.
Patent GB-325976-A (GB)
Title: Improvements relating to telephone instruments
IPC: H04R1/02
Filed: 1929-02-01
Abstract: 325,976. Celestion, Ltd., and French, C. Feb. 1, 1929. Diaphragms. - A sound-reproducing or other acoustic instrument has a large conical or dished diaphragm b united at its periphery to a tubular shielding member c which is held in contact with a bedding of soft packing material e, such as sponge rubber or felt, carried preferably on the ring d<1> of a spoked structure d. The shielding member c may extend on one or both sides of the diaphragm, Fig. 5, either edge being bedded against the packing material; the diaphragm and tubular member may be four-sided, or six-sided.
Patent GB-494477-A (GB)
Title: Improvements in or relating to radio and like receivers
IPC: H03G11/04
Filed: 1938-02-04
Abstract: 494,477. Wireless receiving systems. CHART, F. J. (Clay, M. G.) Feb. 4, 1938, No. 3604. [Class 40 (v)] In a noise-suppressing circuit in which the receiver is disabled by the output from a rectifier passing noise peaks, said rectifier is biassed back by the output from a rectifier of longer time constant fed with signals and used also for A.V.C. purposes. As shown an auxiliary I.F. amplifier 6K7 fed from the input of the last main I.F. amplifier 6L7, feeds two diodes in a valve 6H6 the upper of which is an A.V.C. diode with load circuit R2, C2 which is included in the circuit of the lower diode across whose load resistance R4, R7 are developed noise-suppressing potentials which are fed to the third grid of valve 6L7 through choke L4 and condenser C5. In another embodiment a tapped input circuit supplies less input voltage to the suppressor diode than to the A.V.C. diode and these diodes may be duplicated for full-wave rectification.
Patent GB-681428-A (GB)
Title: Improvements in or relating to mineral oil compositions
IPC: C08F293/00
Filed: 1949-02-10
Abstract: The composition of the parent Specification is modified by the addition to mineral oils of 0.05 to 15 per cent of polystyrene of average molecular weight between 60,000 and 80,000 which has been alkylated with 0.2 to 0.8 part of propylene polymer per part of polystyrene.ALSO:The composition of the parent Specification is modified by the addition to mineral oils of 0.05 to 15 per cent of polystyrene of average molecular weight between 60,000 and 80,000 which has been alkylated with 0.2 to 0.8 part of propylene polymer per part of polystyrene.