baber/WOPTO huggingface dataset:
Patent GB-460015-A (GB)
Title: Improvements in magnetic compasses
IPC: G01C17/00
Filed: 1936-09-02
Abstract: 460,015. Magnetic compasses. BUSCH AKT.-GES. OPTISCHE INDUSTRIE, E. Sept. 2, 1936, Nos. 24078, 24079, 24080, and 24081. Convention dates, Sept. 2, 1935, Feb. 13, 1936, March 7, 1936, and March 7, 1936. [Class 97 (ii)] The needle of a magnetic compass is damped by eddy currents induced in an electrically conducting element which closely surrounds the needle and is of a thickness exceeding one quarter of the length of the needle. In the form shown in Fig. 1, the needle n<2> pivots in a cylindrical recess in a block 20 of pure aluminium and carries a pointer 16. The needle n<2> and pointer 16 are connected by a shaft passing through a central aperture in a lid 21 closing the recess. A sleeve 26 may be raised to lock the needle by a resilient double armed lever 24 operated by the pin 23. In a modification two arc shaped magnets carried by dependent parts of a pointer move in an annular groove in an aluminium block. In the form shown in Fig. 5, the needle n<5>, carrying a hemispherical compass card 56 and a counterweight 57, is pivoted in the centre of a conducting member 50, which is formed as part of a hollow sphere and is secured to the compass bowl 52. In a further modification, Fig. 9, upper and lower conducting members 71, 70 jointly enclose a spherical chamber and a third spherical conducting member 72 is fixed concentrically with the chamber. A conical recess 73 enables the movable element, comprising three symmetrically arranged arc-shaped magnets n<9>, n<10> and an annular card 76 which is viewed through the window 74, to be pivoted at the centre of the member 72 and to move in the space between the members 70, 71, and 72. In a modification the two magnets n<10> at the bottom of the movable system may be dispensed with and the member 70 and window aperture 74 replaced by a compass bowl with a transparent cylindrical side wall through which the card 76 may be viewed. Alternatively the upper magnet n<9> may be dispensed with and the member 71 and card 76 replaced by a hemispherical window and hemispherical card respectively.
Patent GB-1464993-A (GB)
Title: Crystal oscillator type electronic timepiece
IPC: G04F5/06
Filed: 1974-05-31
Abstract: 1464993 Electronic timepieces CITIZEN WATCH CO Ltd 31 May 1974 [7 June 1973 5 Dec 1973 7 Jan 1974] 24215/74 Heading G3T [Also in Division H3]  In an electronic timepiece comprising a crystal controlled oscillator 1,2, Fig. 7 and a frequency divider 4, a buffer circuit 7 is connected between the oscillator circuit and the divider input to provide trigger pulses to the divider. The buffer circuit comprises a pair of complementary MOSFETs - i.e. P-channel transistor 113 and N-channel 114 and at least one further MOSFET (111, 112 in Fig. 7). The oscillator output is applied both directly and via a phase shift circuit which includes a resistor 109 and the gate capacitance 110 of a MOSFET, such that all of the MOSFETs cannot conduct at the same time as in known arrangements and therefore power is not consumed in a wasteful manner. The threshold voltage of the P-channel transistors is VTP and that of the N-channel transistors is VTN. As shown Fig. 4, the current 105 in the P-channel transistors decreases as the applied gate voltage approaches V DD , while the current 104 in the N-channel transistors increases as the applied gate voltage increases toward V DD . Consequently, as shown Fig. 6a, with a directly applied voltage waveform 107 from the oscillator, the complementary transistors 113, 114 will be conductive simultaneously for periods ti and t 2 , while with the phase shifted applied voltage waveform 106, Fig. 6b, the complementary transistors 111, 112 will be conductive simultaneously for periods t3 and t 4 . The period t 1  does not overlap t 3 , and t 2  does not overlap t 4  so that all of the MOSFETs cannot be conductive at the same time. During the periods in which 112 and 114 are simultaneously conductive the output 108, Fig. 6c of the buffer will be zero but at all other times will be V DD .
Patent GB-705585-A (GB)
Title: Improvements relating to circular knit stockings
IPC: A41B11/00
Filed: 1950-10-04
Abstract: 705,585. Knitting. SCOTT & WILLIAMS, Inc. Oct. 4, 1950 [Oct. 6, 1949], No. 24262/50. Class 74 (2) Under the sole of the foot of a circularly knitted stocking, adjacent to a reciprocatorily knitted heel, extends a gusset united by sutures to'two wedges, one on each side of the stocking, which wedges are located just below a line running directly from the inner end of the heel suture to the instep, taper to a point at the front of the instep and are knit, each as continuing courses without any sutures intervening between it and either the adjacent leg instep fabric or the adjacent foot instep fabric, providing fullness adjacent to the ankle. The leg is formed by knitting, in succession, by widening and/or narrowing as required, the areas 10, 11 (first on one side and then on the other) 14, 13 and 15 (on one side and then on the other) which completes the stocking up to the line D, B, 17, or D<1>, B, 17. In the stocking of Fig. 1, knitting is continued, starting with the line DB on each side and narrowing (one needle per course along DC and one needle per two courses along BC) to produce the triangular extension 18 of the area 15. The narrowed and widened heel segments 7, 8 are next knitted. Now knitting is continued on the heel segment needles and needles are taken in as required at each end to produce an insert 19 stretching through the point E and under the foot, whereafter circular knitting of the foot is commenced. Thus a single-sided suture DC and double-sided sutures CB, BA are produced. In Fig. 2, when the line D<1>B17 has been reached, the narrowed and widened heel segments 7, 8 are knitted. Then, starting with the needles between B and some point B1, reciprocatory knitting is continued, needles being added at one end to form the single-sided suture BD<1> and removed at a slower rate at the other end, to form the areas 21. The insert 22 is now knitted under the sole, needles being added at each end to form the double-sided sutures B<1>C<1>. Circular knitting of the foot then begins. The area 19, plus the areas 18, or the area 22 plus the areas 21, constitute tapered inserts providing fullness adjacent to the ankle.
Patent GB-1000814-A (GB)
Title: Improvements in or relating to a structural unit and process for making the same
IPC: E04C3/38
Filed: 1962-06-25
Abstract: 1,000,814. Structural units; composite sheets; reinforced concrete arches and beams. H. A. FROMSON. June 25, 1962 [July 11, 1961], No. 24403/62. Headings E1B, E1K and E1V. [Also in Division D1]  A structural unit comprises a series of integrally connected hollow tetrahedrons formed by crimping a tube. In Fig. 1 a tube is crimped alternately at right angles at 11 and 12 to form the tetrahedrons and a unit of square transverse outline. It may be crimped in directions other than at right angles to form a unit of rectangular transverse outline or in more than two directions to form a polygonal transverse outline. The four rows of apices 18 of the tetrahedrons may be connected together by ties 20 which may be rods, angle bars or plates which may completely enclose the unit to form a beam. To form floors, &c., the units may be placed side by side between two flat plates and welded together or the units may be contained in the alternately oppositely facing corrugations of a rectangularly corrugated plate between the flat plates which may have depressions. The whole may be reduced in size by rolling. The unit may be bent into an arch, Fig. 11 (not shown) and the ties 20 or plates secured after bending and finally the arch may be embedded in concrete or masonry. A beam is formed by covering the upper part of a unit having ties at the bottom, with wire mesh and filling in with concrete. Starting with a tapered tubular blank a unit is formed for use as a pole and by bending the top as a street lamp standard. By compressing and twisting a unit along its axis it will hold so that the tetrahedrons are engaged face to face to form a triangular prismatic unit, Figs. 16, 17 (not shown) which may be used for floors, &c. The material may be metal, plastics or paper.
Patent GB-1285577-A (GB)
Title: Connecting interfitting components
Inventor: GOWSHALL BERNARD
IPC: E04F11/18
Filed: 1969-05-14
Abstract: 1285577 Plastics bush & railings B GOW SHALL 21 April 1970 [14 May 1969] 24522/69 Headings E1B and E2F. [Also in Division F2] A forked bracket 7, connecting an upright 6 to a hollow horizontal rail 9 of a guard rail, has apertures 71 aligned with apertures in the rail 9, and flanged plastics bushes 39, e.g. of polyethylene or polypropylene, are fitted in the apertures in the rail and expanded therein and also axially against the bracket by a pin 38. Since the apertures 71 are larger than the pin ends, the resilience of the bushes allow limited relative movement between the bracket 7 and the rail 9, so the guard rail can be erected on a curve or slope. The pin may have a rounded end (44) or a tapered head portion (45), and is preferably grooved at 42 and made of stainless steel or a non-ferrous metal.
Patent GB-1017038-A (GB)
Title: Improved valve operating mechanism for internal combustion engine
IPC: F01L1/053
Filed: 1964-06-15
Abstract: 1,017,038. I.C. engine valve gear. VOLKSWAGENWERK, A.G. June 15, 1964 [July 13, 1963], No. 24657/64. Heading F1B. In I.C. engine valve gear an overhead camshaft 8 acts directly on a pot tappet 1 having a valve clearance adjusting screw 5 in its end face. The screw 5, which may be mounted offset from the tappet axis, is self-locking by means of upper and lower sections of threads offset in pitch. A hole 11 for insertion of an adjusting key may be adjacent to or in a cam or a wide cam 10 may have a central groove, the cam-shaft being reinforced in the region of the pole 11.
Patent GB-690536-A (GB)
Title: Improvements in or relating to air impelling and deflecting apparatus for distributing air in the passenger compartment of a vehicle across the inner surface of the rearwindow of the vehicle
IPC: B60H1/24
Filed: 1951-10-23
Abstract: 690,536. Demisting vehicle windows. EATON. MANUFACTURING CO. Oct 23, 1951 [Nov. 10, 1950], No. 24701/51. Class 20(iii) For demisting the rear window 42 of a car, there is provided beneath the deck 12 adjacent the window an air impeller 26 housed in a casing 14 having inlet and outlet apertures 20, 22 registering with apertures 30, 32 in the deck covered by a grill 34. A deflector 40 over the outlet 32 directs the air over the window. A heater 54 may be provided adjacent the intake.
Patent GB-1207659-A (GB)
Title: Vidicon gauze-electrode manufacture
IPC: H01J19/00
Filed: 1969-05-15
Abstract: 1,207,659. Making gauze electrodes, welding by pressure. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 15 May, 1969 [18 May, 1968], No. 24790/69. Headings B3A and B3R. A gauze electrode 7 for a vidicon camera tube is made by electro-deposition, then etched to give it a light transmission factor of more than 50%, mounted between metal frames 4, 5 and secured thereto by diffusion, at a temperature between 60% and 70% of the melting temperature of the gauze material in ‹ C. in a reducing atmosphere, the width of the material of each frame being less than 15% of the outside dimension of the frame. The gauze is made of copper and the frames are of a coppernickel alloy, the diffusion process being performed at 650‹-758‹ C. for 12 minutes with the frames held against each other with a light force. The gauze shape may be circular or rectangular and the diffusion operation is performed at a comparatively low temperature to avoid excessive shrinkage of the etched gauze.
Patent GB-263935-A (GB)
Title: Improvements relating to horse and other like shoes
IPC: A01L7/02
Filed: 1925-10-06
Abstract: 263,935. Saxton, E. Oct. 6, 1925. Renewable calks, treads, and hoof-fitting surfaces. - A light t foundation plate A, has detachably mounted on it wearing-surfaces B, C at the toe and heel. The front wearing surface is metallic and may be slid into a bracket b, Fig. 2 and secured by a nail b<2>, or may be secured by rivets, as in Fig. 5. The rear wearing surface C is of rubber, and may take the form of a piece of pneumatic tyre secured to a turned-over portion a<1>, Fig. 1 of the plate A by bolts c and a clamping plate c<x>, or may be a solid block secured to a turned-over portion a<3>, Fig. 5 in a similar manner, the clamping plate being arranged to engage with bevelled edges on the plate A.
Patent GB-504272-A (GB)
Title: A self-oiling wheel for the road wheels of vehicles, pulleys and the like
IPC: B60B35/00
Filed: 1938-02-12
Abstract: 504,272. Lubricating wheels, pulleys, &c. WINTERSGILL, H. H. Feb. 12,1938, No. 24848/37. [Class 12 (iii)] A wheel has a hollow hub A for lubricant and a bush B with holes E. A loop F of chain hangs round the bush B and extends to the wall of the hollow hub A. As the wheel revolves the chain feeds oil through the holes E to the axle.
Patent GB-1101348-A (GB)
Title: Improvements in sodium bicarbonate manufacture by the ammonia-soda process
Inventor: BROOKS RICHARD
IPC: B01D9/00
Filed: 1964-06-16
Abstract: Sodium bicarbonate is made by the ammoniasoda process in a column having a plurality of superposed compartments wherein carbon dioxide is contacted with a magma of sodium bicarbonate supported on a horizontal perforated plate and passing from compartment to compartment through a downcomer off set in relation to the downcomers of adjacent compartments, at least one of the lower compartments in the column having an arranging of spaced cooling tubes extending across the compartment and over which the magma of sodium bicarbonate flows, baffles being arranged to direct rising carbon dioxide first upwardly in a central zone of the cooling arrangement, then downwardly in adjacent zones thereof and then upwardly again in the outer zones of the arrangement to the compartment above.  In compartments with cooling tubes the perforations of the plates are arranged in rows co-extensive with the cooling tubes while in the other compartments the perforations are arranged in concentric circles.  The downcomers project above the perforated plates, are disposed in a peripheral zone thereof and may be inclined to the vertical.  A column preferably has a diameter of between 6 and 9 feet and may have between 14 and 20 compartments of which 4 or 5 contain cooling means.
Patent GB-1249811-A (GB)
Title: Multi-mode antenna
Inventor: WILEY CARL ATWOOD
IPC: H01Q3/22
Filed: 1969-05-15
Abstract: 1,249,811. Aerials. NORTH AMERICAN ROCKWELL CORP. 15 May, 1969, No. 24941/69. Heading H4A. In an antenna array, radiation in two separate, independent, modes is effected through the front ports, 15, of the main guides 10. Feed guides, 14a, 14b, supply frequency scanning signals and the feed guides 16a, 16b and the twist-reflector, 19, supply phase-controlled signals, to the main guides respectively. The polarizations of the modes from guides 14 and 16 are crossed and react with the polarization sensitive shunt impedance, 18, so as to effect mode separation. Guides 14 are coupled to an R.F. power source, frequency scanned, while angular movement of 19 produces adjustment of the phase-front formed at 15 by the signals from 16. Signals from 14 flowing to the right, pass through ports 15, those moving to the left pass the attenuator 18, are cross polarized at 18 and are then returned to 18 and attenuated. Signals from 16, propagating to the right are attenuated at 18 while those moving to the left are reflected at 19 and pass the attenuator 18 to be emitted at 15, being polarized in the same plane as signals for 14. Isolation of the two radiation modes may be enhanced by employing different bandwidths for the modes.
Patent GB-1531482-A (GB)
Title: Programme file
IPC: B42F13/00
Filed: 1976-06-02
Abstract: 1531482 Loose-leaf binders JETLEYS (GREAT BRITAIN) Ltd 2 June 1976 [11 June 1975] 24959/75 Heading B6E A loose-leaf filing folder comprising a pair of covers 11, 12 which are articulated to each other by a spine 13 has each of the covers fitted on their inner faces with one or more leaf retaining means 15, 16, 20, neither of the means which are of different sizes, being disposed adjacent to and parallel to the spine.
Patent GB-843548-A (GB)
Title: Improvements relating to spark machining apparatus
Inventor: TOWNEN GORDON HOWARD
IPC: B23H7/30
Filed: 1956-08-16
Abstract: 843,548. Cutting by spark erosion. G.K.N. GROUP SERVICES Ltd. Aug. 16, 1957 [Aug. 16, 1956], No. 25028/56. Class 83 (4). [Also in Group XXXV] In a spark - machining apparatus the spark-gap is maintained automatically by a rotary electric motor 36 which moves the electrode or workpiece through one or more stages of friction gearing to provide a substantially backlash - free drive. The apparatus comprises a base 10 adapted to stand in a bath of paraffin which is pumped to the spark-gap and carrying a workpiece support 13 and a channel or box section pedestal 11 supporting a head 12. The electrode is mounted in a holder 23 carried by a vertically movable arbor 15 supported under spring pressure against balls or rollers 19, 20 on the head and having a flat vertical surface 29 in frictional engagement with a spindle 30 backed by rollers 28. Rotation of the spindle 30 by a hand wheel 35 or by the electric motor 36 thus produces vertical adjustment of the arbor 15 which is connected by a .cable 64 to a counterweight 59. The motor 36 is connected in a circuit described in Specification 843,547 and drives through a gear-box 47, which may include toothed gearing, a coupling disc 44 having a driving peg 46 engaging in a slot in another coupling disc 45 mounted on a spindle 43. The latter is spring-pressed into frictional driving engagement with the surface of a disc 40 coupled to the input disc 49 of a friction differential gear 38 which imparts an additional oscillating motion to the spindle 30. The differential gear comprises an intermediate disc 55, Fig. 3, sandwiched between the input disc 49 and an output disc 50 biased to the left by a spring 51. The intermediate disc 55 carries three balls 56 frictionally engaging in annular grooves in the discs 49, 50 and has an arm 57 biased by a spring 65 into engagement with a cam or eccentric 58 driven by a motor 39. A crank may be used instead of the eccentric 58. Output disc 50 is connected by a driving peg 63 to a disc 62 on the shaft 30 which thus receives drive motion from the motor 36 and a superimposed oscillating motion from the motor 39.
Patent GB-943110-A (GB)
Title: Chain and rope rupture safety device on blowing devices for refining crude iron
IPC: C21C5/46
Filed: 1961-07-11
Abstract: 943,110. Ratchet clutches. VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE A.G. July 11, 1961 [July 20, 1960], No. 25100/61. Heading F2C. [Also in Division F4] A ratchet clutch for use in a chain or rope rupture safety device for furnace lances comprises a fixed chain wheel or rope drum 3 and a freewheel or drum 4 on a driving shaft 5, the wheel 4 carrying pawls 7 which are spring- loaded to pivot into a position engaging a ratchet-wheel 8 connected to the shaft 5, but which are normally held out of contact by peripheral projections 12. In rupture, the wheel 4 rotates faster than wheel 3 causing the pawls 7 to engage the ratchet-wheel 8, thus coupling wheel 4 to the driving shaft 5. With endless rope hoists, the rope drums may be arranged on shafts arranged in tandem or in parallel and connected by an intermediate gear. A similar arrangement is used for rope drives that are not endless, but in this case a counterweight or tensioning motor is used with the loose drum to take up the slack on the reserve rope.
Patent GB-258096-A (GB)
Title: Improvements in domestic water heaters
IPC: F24H1/20
Filed: 1925-10-08
Abstract: 258,096. Broom, J. W. Oct. 8, 1925. Block-form boilers.-A waterheater comprises a cylindrical container a traversed by the tubes c delivery into a chamber g surmounted by the chimney h. Supported so as to be above the central tubes c is a mushroom-shaped baffle d, while a coned plate, e with central aperture f is fitted in the chamber g above the baffle d.
Patent GB-1017166-A (GB)
Title: Coupling for fluid-carrying lines
IPC: F16L59/18
Filed: 1964-06-17
Abstract: 1,017,166. Pipe coupling. WORTHINGTON CORPORATION. June 17, 1964 [June 19, 1963; March 30, 1964], No. 25146/64. Heading F2G. A pipe coupling comprises two doublewalled conduits 16, 18 and 24, 26 adapted to convey liquefied gases and arranged to be clamped together by means of nuts and bolts, each conduit comprising, an inner wall 16, 24 conveying said liquefied gas, an outer wall 18, 26 surrounding said inner wall and spaced therefrom to define an evacuatable space 20, 28, flange means 22, 30 on one end of the outer wall and an extended metal sheet of pleated configuration extending in gas-tight relationship between the inner and outer walls, the pleats of the sheet projecting inwardly into the evacuatable space, and an outer seal member 36 between the flanges, the coupling having identical mating halves. The pleated metal sheet preferably comprises alternating cylindrical and frusto-conical elements 38, 42 and 40, 44 or all frusto conical elements which may be welded to each other at one end and to the flange and inner wall at the other end, or may be formed integrally with the wall and flange. More than one of each of the cylindrical or conical elements may be used. The space between the adjacent ends of the inner wall may be filled with a gasket and the spaces 43, 45, may be filled with balsa or polyurethane foam preformed or foamed in situ. The cylindrical or conical elements may have reinforcing ribs, integral or attached by other means such as welding.
Patent GB-268236-A (GB)
Title: Improvements relating to spring ironing pads
IPC: D06F83/00
Filed: 1926-10-11
Abstract: 268,236. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). Oct. 11, 1926. Work supports for ironing-machines. - In supports comprising padding 20 supported by springs 11 carried by the base plate 10, capping members for the springs comprise discs 12 having upstanding flanges 13 and prongs 15 engaging the resilient members 14 under the padding, and downwardly directed prongs 16 engaging the springs either externally or internally. In a modification in which the intermediate resilient members 14 are omitted, the flanges are dispensed with and the upstanding prongs engage directly in the padding.
Patent GB-958842-A (GB)
Title: Ducted fan lift engine
IPC: F02K3/068
Filed: 1961-07-12
Abstract: 958,842. Ducted fan lift engines. M.A.N.- TURBOMOTOREN G.m.b.H. July 12, 1961 [July 13, 1960], No. 25325/61. Headings F1G, F1J, F1L and F1T. A ducted fan lift aircraft engine for vertical take-off and landing including a fan rotor provided with turbine blades on its periphery, comprises a combustion chamber means supplying power gases to the turbine blades, a generally cylindrical housing arranged co-axially with the fan rotor to serve as a distributer housing for combustion and mixing air which is supplied to the combustion chamber means by a highspeed rotary compressor and a plurality of tubes leading radially or obliquely from the housing and opening into an annular duct which extends over the entire turbine blade ring. Compressed air is supplied through a distributer 23 to a number of air jacketed combustion chambers 25 through openings 28. Fuel is supplied by pump 30 through an annular pipe 31 to burners 32. Combustion products pass through the annular duct 27 to the guide vanes 15a, 151a and turbine blades 15, 151 mounted on the fan blades 14, 141. The two rotors 13, 131 are journalled on a stub shaft 16 and synchronised by gears 17, 19, 20 and 21. In a modification, Fig. 3, the fuel is sprayed into a combustion chamber 41 by a rotary atomiser 47 driven by gears 48, 49, 50 from the rotor discs 33a. Air passes through openings 51 into mixing tubes 45 leading to an annular duct 44. The duct 44 supplies working fluid, to guide vanes 35a, 35<SP>1</SP>a and to turbine blades 35, 351 mounted on a rotor made of two parts 33a, 33b. The fan blades 34 are also made in two parts.