baber/WOPTO huggingface dataset:
Patent GB-710370-A (GB)
Title: Improvements in or relating to control apparatus for electric motors and winding equipment
IPC: B66C13/26
Filed: 1951-09-07
Abstract: 710,370. Control of A.C. motors. GENERAL ELECTRIC CO., Ltd., and DERRINGTON, J. G. F. Aug. 29, 1952 [Sept. 7, 1951], No. 21174/51. Class 38(3) [Also in Group XXXV] Slow speed control of a poly-phase induction motor, driving a winding shaft, is provided by releasing an electro-mechanical brake in dependence on the induced voltage in the rotor. The system is described with reference to a motor 10 mechanically coupled to winding drum 11, main brake drum 12 and running brake drum 13, which is supplied through forward and reverse contactors 15, 16 and has its rotor resistance controlled by a drum controller in conventional manner. In the first position of lowering contactor 24 is closed to energize the running brake operating coil 40 (from the A.C. supply through a rectifier 42) and the release coil 41 from the rotor through a rectifier 43. As the rotor speeds up, the induced voltage falls until equilibrium is reached and the motor runs at substantially constant speed.
Patent GB-283084-A (GB)
Title: Improvements in moving and changing advertising or displaying apparatus
IPC: G09F23/00
Filed: 1927-08-12
Abstract: 283,084. Stoer, C. E. Aug. 12, 1927. Cylinders and like elements, rotating; actuating.-An advertising or displaying apparatus comprises in combination a source of light 5, a multicoloured transparent or translucent element 11 with means, such as convection vanes 12<a> or a motor, for moving same, a screen 4 of flexible material such as silk, and a component. 19 for producing distortion or like effects. The lamp 5 is mounted in a socket 6 which may be slidably mounted in a guideway 16. The element 11 may be a cylinder made up of sections 12 riveted together and furnished with a bearing consisting of a hard stone mounted in a twopart thimble-like fitting 13. An inspection opening 22 may be provided.
Patent GB-570913-A (GB)
Title: Improvements in the joining of pipes
IPC: F16L21/06
Filed: 1943-12-20
Abstract: 570,913. Pipe joints TAYLOR, G. Dec. 20, 1943, No. 21307. [Class 99 (i)] A sleeve 1 of soft metal is compressed on to the pipe ends by a bolted split-ring clamp 6, the sleeve being corrugated before deformation by the clamp, and having internal and external beads 4 which engage coincident annular grooves 9 in the clamp and pipes, and having flanges 3 engaging grooves 8 in the clamp.
Patent GB-945359-A (GB)
Title: An automatic surveyor's level
IPC: G02B27/64
Filed: 1960-06-17
Abstract: 945,359. Stabilizing line of sight. H. ELLENBERGER. June 17, 1960 [ June 19, 1959], No. 21369/60 Heading G2J. [Also in Division G1] In an automatic levelling instrument in which a mirror, plane-parallel plate or prison is arranged in the path of the rays and is pivoted about a horizontal axis in such a manner that on deflection of the body of the instrument from the horizontal, the optical member is deflected by the force of gravity through such an angle that the sighting direction of the instrument remains horizontal, the optical member 5 is mounted by a torsion wire 11 at one side and by a two-filament or multi-filament tensioning device at the other side, the straight connecting lines of the two points of attachment of each filament 13, 14, intersecting in the pivotal axis 12 of member 5 or being parallel to this axis in the normal position of member 5, i.e. the position which it assumes when the instrument is precisely horizontal. The filaments 13, 14, are anchored to a spring 16 which is adjustable by a screw 17. The torsion wire 11 is adjusted by a screw 18 and screw 36 is provided to ensure that the centre of gravity of member 5 is vertically above, or below, the axis 12. U. S. A. Specification 2, 841, 047 is referred to.
Patent GB-850392-A (GB)
Title: Apparatus for securing strip iron on packages
IPC: B65B13/24
Filed: 1957-07-05
Abstract: 850,392. Tensioning bands. SERRA, J. M. F. July 5, 1957, No. 21408/57. Class 45. [Also in Group XV] Apparatus for strapping a package comprises retaining means for initially pressing the ends of the strap together, means preventing lateral movement of the strap actuated by operation of the retaining means, a strap tensioning means, means for joining the ends of the strap actuated by a pair of levers, and further means for preventing lateral movement of the strap released by return of the joining means to its inoperative position. The retaining means comprises a tensioning wheel 9 mounted eccentrically on a shaft 15 over an anvil 9<SP>1</SP>, the wheel pressing the ends of the strap onto the anvil when a lever 11 is turned to the position shown. On actuation of the retaining means a cam 22, moving with the lever, turns a rod 24 so that an arm 26 on the rod is vertical and in contact with an edge of the strap. To tension the strap a lever 18 is oscillated, the lever rotating the wheel 9 by means of a pawl and wheel 19, 20. The joining means comprises levers 29, 30 having their pivotal ends formed as pinions which intermesh, and having their shafts mounting eccentrics 34, 35, which engage a slide 36 carrying a die 38 and a knife 37. Movement of the levers 29, 30 from the horizontal to the position shown causes the die to press the strap ends onto a die 39 join the ends of the strap by deformation, and causes the knife to sever the free end of the strap. The further means preventing lateral movement comprises a guide 45 formed on a rod 40 which is pressed into a lower operative position when the strap is first placed about the package. Return of the levers to their initial positions to raise the die 38 and knife causes a pawl 49 on the eccentric 35 to engage a projection 42 on the rod 40 to lift the guide. As the lever 30 reaches its horizontal position a projection 30<SP>1</SP> engages a peg 14 on the shaft of the wheel 9 to move the wheel and the rod 24 to their inoperative positions.
Patent GB-295382-A (GB)
Title: Improvements in and relating to gaskets
IPC: F25D23/08
Filed: 1928-07-24
Abstract: 295,382. British Thomson-Houston Co., Ltd., (Assignees of Sywert, P. T.). Aug. 12, 1927, [Convention date]. Joint-making packing.-A rubber or other packing strip, applicable for the doors of domestic refrigerators, is formed with rivet-like projections 3, which are forced through perforations 5, in the article 4 to which the packing is applied, by means of a rod 10 inserted in bores 8 in the projections 3. The projections 3 are closer together than the perforations 5 in order to stretch the packing. Hollows 2 may be formed in the back of the packing.
Patent GB-239232-A (GB)
IPC: H01B11/14
Filed: 1925-08-28
Abstract: 239,232. Felten & Guilleaume Carlswerk Akt.-Ges. Sept. 1, 1924, [Convention date]. Paints ; varnishes. - In order to avoid stresses in uniformly loaded conductors due to unequal expansion in annealing a layer of varnish is interposed between the loading strip and the core and removed by a solvent before annealing. Suitable varnishes consist of (a) 200 parts of shellac, 650 of colophony, and 650 of spirit, (b) 200 parts of acetyl cellulose and 800 of acetone, or (e) 100 parts of celluloid, 300 of amylacetate, 300 of acetone, and 300 of ether, to which may be added 50 parts camphor. A small portion of insoluble and non-inflammable matter, such as fine short asbestos fibres or mica powder may be added to the varnish, forming a residuum which tends to keep the core in the centre of the loading strip.
Patent GB-919044-A (GB)
Title: Improvements in walking aids
IPC: A61H3/00
Filed: 1960-06-21
Abstract: 919,044. Walking aids. THOMAS, A. June 20, 1961 [June 21, 1960], No. 21638/60. Class 132 (1). A walking aid comprises two spaced frame members a providing two hand grips d, each frame having an upstanding limb, the upstanding limbs being connected by cross-members b which are pivoted on the limbs so that the two frames may be pivoted to be adjacent to each other in a folded position or opened to a position in which they are substantially parallel one to the other. The cross-members b have at each end a T-shaped collar h which rotates on frame member a. The upper collars are urged by a spring between the collar h and a fixed collar h1 to engage a pin e on the member a in a slot in the collar in the operative position of the frame members. Lifting the upper member b disengages the collars from the pins and allows rotation of the frame members a to the folded position.
Patent GB-1248639-A (GB)
Title: Data transmission method and system
IPC: H04L25/03
Filed: 1969-04-29
Abstract: 1,248,639. Self-adaptive transversal equalizers. CODEX CORP. 29 April, 1969 [30 April, 1968], No. 21675/69. Addition to 1,178,769. Heading H4R. In an adaptive transversal equalizer of the type of Specification 1,178,769, in which the multipliers of a tapped delay line, or its digital equivalent, are adjusted in response to the determination of errors between the equalized signal and the transmitted signal, and in which the correction signal for adjusting the multipliers is derived by determining the error signals relating to sampling times over a range of sampling times spaced about the sampling time appropriate to the multiplier being adjusted and summing the errors, appropriately weighted in accordance with their time of occurrence. The error signals are determined as the difference between the equalizer output after it has been quantized to provide the receiver output, and the equalizer output as applied to the quantizer. A preferred system uses the unequalized input samples as the weights applied to the error signals to provide the correcting value. The general formula for the correcting value to achieve universal convergence is where Zkvis the equalizer output sample; Kk is the desired output value, equal to the quantized output; Y k-i  is the input to the equalizer; C i v is the correction factor with the superscript v indicating the vth step of forming a correction factor and i is the particular tap whose multiplier is being adjusted; f 1  and f 2  are odd, monotonic, non-decreasing functions whose value is zero when the argument is zero and in the preferred arrangement referred to above f 1 (x) = f 2 (x) = x. With a small scale factor, the addition of the correction factors to the multiplier coefficients accomplishes the summing of the weighted error terms and the formula for the correction value reduces to for the preferred arrangement. The transmission system employed may be the same as that described in the parent Application and the desired impulse response may be one for k = 0 and zero for all other values of k. Alternatively, for equalizing circuits having serious phase jitter and where the pulse signals are carrier modulated, as in telephone lines, the desired response has a mull in the pulse spectrum, allowing the carrier frequency to be placed at this null and a much wider band phase look loop to be used for carrier synchronization. In this case the equalizer has a desired response which is +1, 0, - 1 about the centre, or +1,  0, 0, 0, - 1. Other forms of response are also suggested to provide easier timing recovery, multiplexing, and removal of phase jitter, and the modifications of the error calculator to accommodate these alternatives are suggested.
Patent GB-799455-A (GB)
Title: Intermediate drive arrangement for an endless conveyor
IPC: B65G23/14
Filed: 1956-07-13
Abstract: 799,455. Driving mechanism for endless conveyers. JOCHUMS, A., and WITTKOP, E., [trading as HAUHINCO MASCHINENFABRIK G. H. JOCHUMS & CO.]. July 13, 1956 [July 27, 1955], No. 21724/56. Class 78 (1). An intermediate drive mechanism of the type having endless drive chains 7 guided over chain sprockets 6 on which chains drive members 8 are secured which engage with the chains of the lower length of an endless jointed conveyer band 2, has a curved guide 13 to press the two sets of chains together into driving engagement. As shown, the troughed conveyer 2 at its lower run passes over support rollers 14 and therebetween is drivingly engaged by the endless chains 8 and is additionally supported by support rollers 19 carried by chains 33 which are stressed by springs 37 through double arm levers 36. Alternately rollers 19 may be individually and resiliently mounted.
Patent GB-1304482-A (GB)
IPC: B66C1/48
Filed: 1971-04-19
Abstract: 1304482 Hoisting grab INTERLAS NV 19 April 1971 [16 Feb 1970] 21750/71 Heading B8H A hoisting grab comprises webs 1, 2 each composed of separate layers 1<SP>1</SP>, 1<SP>11</SP>, 1<SP>111</SP> and 2<SP>1</SP>, 2<SP>11</SP>, 2<SP>111</SP>, said webs 1, 2 being maintained spaced apart by means of spacer elements 3, a serrated gripping cam 9 pivotally mounted on a pin 10 between the webs 1, 2 and operable on clockwise rotation to engage a plate for lifting (not shown) whose edge has been inserted into a recess 4, the said plate being engaged between the cam 9 and a fixed jaw 11, the cam 9 rotating on movement of a hoisting eye at whose end a pin 6 is movable in slots (not shown) provided at the inner sides of the webs 1, 2.
Patent GB-185314-A (GB)
Title: Improvements in vacuum meters for measuring petrol consumption and for like purposes
IPC: G01F9/00
Filed: 1921-08-16
Abstract: 185,314. Seck, W. Aug. 16, 1921. Liquid-meters.-Meters for use in connection with vacuum - feed petrol and like supply systems comprise a piston or diaphragm a, Fig. 3, adapted to operate a counter h and a pointer k. The counter reads to tenths of the unit measure, and each alternate section of the tenths indicator is of a conspicuous colour, so that during the stroke of the piston &c. under the action of a vacuum, the colour is shown, while on the return of the piston &c. a number is exhibited. The pointer co-operates with concentric scales m, n, Fig. 1, the inner scale indicating consumption and the outer the quantity remaining in a tank. The movable outer scale carries a coloured marker q, which is adapted to engage the pointer k for setting purposes, and is initially positioned to indicate on the scale m the contents of the tank.
Patent GB-828482-A (GB)
Title: Pressure rolls in seamless asbestos cement pipe making machines
IPC: B28B21/50
Filed: 1957-07-10
Abstract: 828,482. Rollers. HARDIE & CO. PTY Ltd., J. July 10, 1957 [July 20, 1956], No. 21871/57. Class 42 (2). [Also in Group XXVIII] A pressure roller for a machine for making asbestos cement pipes comprises a resilient work surface composed of the outer faces of a multiplicity of separate pressure elements. The roller 15 has a layer of resilient material 16 such as rubber, which is divided by a number of circumferential and longitudinal grooves 19 into a series of pressure elements 17 having faces 18 the total area of which lies between 18 and 60% of the original total cylindrical surface.
Patent GB-1157606-A (GB)
Title: Vulcanization of Rubber
Inventor: BAKER CRISPIN STUART LEWORTHY
IPC: C08K5/55
Filed: 1967-05-11
Abstract: 1,157,606. Drying agents in rubber vulcanizing. NATURAL RUBBER PRODUCERS' RESEARCH ASSOCIATION. 3 May, 1968 [11 May, 1967], No. 21895/67. Headings C3E and C3P. A vulcanizable composition comprises natural rubber or a solution polymerized synthetic rubber, a borane complex vulcanizing agent, and a drying agent to react chemically with moisture present in the rubber to give a product which is unreactive towards the borane complex. A suitable drying agent is CaO. The borane may be complexed with an amine.
Patent GB-848969-A (GB)
Title: Improvements in or relating to temperature-responsive devices
IPC: F16T1/08
Filed: 1958-07-09
Abstract: 848,969. Making thermostats. GERDTS, W. F., and GERDTS, H. R., [trading as GERDTS KOMM.-GES., G. F.]. July 9, 1958 [March 27, 1958], No. 21962/58. Class 83 (2). [Also in Groups XIII and XXIX] Bimetal strips 7 for use in a steam trap (see Group XIII) are cut from long strips of bi-metal made by uniting steels of different thermal expansions by spot-welding or roll-seam welding. Seam-welds extend lengthwise along a long strip from which the strips 7 are cut but the cut-off strips, Fig. 2, have the welds 21 extending obliquely of the strips. Each bi-metal strip 7 may then be in the shape of a parallelogram with two opposite corners, cut off to give two short edges 22 which bear against those of the strip with which it is paired when the pair is bowed. The contacting edges may be dovetailed or interlaced with one another and the strips may be in the shape of quadrangles or triangles with the corners cut off.
Patent GB-742840-A (GB)
Title: A new or improved blind
IPC: E06B7/084
Filed: 1953-08-10
Abstract: 742,840. Anti-dazzle screens for vehicles. WILLETTS, E., and WILLETTS, E. G. Aug. 5, 1954 [Aug. 10, 1953; Feb. 23, 1954], Nos. 21992/53 and 5261/54. Class 103 (2). [Also in Groups X and XXV] A venetian blind, for application to a rear window 20 of a vehicle, comprises angle-section side frame members 10 which are secured by clips 23 to a moulded rubber window surround 21 and have pivoted thereon arms 12 which are notched at 15 on the under edge, as shown, or, alternatively, on the upper edge resiliently to receive the ends of transversely curved slats 13, the arms 12 on each frame member 10 being pivoted at 17 to an arm 16 which is vertically movable to adjust the inclination of the slats. The arms 16 can be operated by cords 35, 36, connected to a common actuating means, for simultaneous movement, or by a lever moved by a solenoid 37, indicated in dotted lines. Alternatively the blind may be actuated by hydraulic, or pneumatic, means with remote control. In an alternative method of mounting the blind, co-operating hooked clips 27, 28, Fig. 4, engage adjustably with lips on the rubber moulding.
Patent GB-679785-A (GB)
Title: Improvements in and relating to iron catalysts
IPC: B01J23/78
Filed: 1950-09-06
Abstract: In the catalytic hydrogenation of carbon monoxide, a greater than 90 per cent conversion of water gas may be attained using a two-stage process, one stage being operated with a once-through passage of synthesis gas, and the other stage with recycling of the gas using a ratio of fresh synthesis gas to recycle gas of 1 : 1 to 1 : 3.  The catalyst is produced by precipitating iron nitrate solution with alkali, adding alkali metal silicate and nitric acid to a suspension of the precipitate, filtering and reducing (see Group III).ALSO:An iron catalyst for use in the hydrogenation of carbon monoxide (see Group IVb), is produced by precipitating a hot solution of iron nitrate with a hot solution of alkali metal hydroxide or carbonate to give a solution having a pH of 6.8 to 7.2 on completion of precipitation, washing the precipitate to reduce its alkali metal content (as K2O), to a maximum of 0.5 parts by weight of K2O per 100 parts by weight of iron, converting the precipitate into a homogeneous aqueous suspension, adding a solution of an alkali metal silicate to give 20-25 parts by weight of SiO2 per 100 parts by weight or iron, treating with nitric acid to yield after filtration a catalyst mass having a ratio of alkali metal oxide (as K2O), to SiO2 of 1:4 to 1:5, moulding and drying the mass, and reducing at 200 DEG -350 DEG C (preferably 260 DEG -300 DEG C), using a gas velocity of 1-2 meters per second to yield a catalyst having 30-50 per cent of its total iron content as metallic iron.  Copper, calcium aluminium, and other activating metals of the first, second and third groups of the periodic system may be incorporated in the catalyst by mixing a solution of the nitrates with the iron nitrate solution prior to precipitation.  Conversion of the washed precipitate into aqueous suspension is effected by first mixing water in an amount of 25-35 per cent of the weight of the moist precipitate, and then adding further water.
Patent GB-971560-A (GB)
Title: Improvements in internal combustion engines
IPC: F01P5/06
Filed: 1962-06-07
Abstract: 971,560. Air-cooled internal-combustion engines. GES. FUR LINDE'S EISMASCHINEN A.G. June 7, 1962 [June 9, 1961], No. 22023/62. Heading F1B. In an air-cooled engine the intake manifold 6 is provided with a flange 8 which defines a wall of the passage 12 conducting the cooling air away from the cylinders. The bottom wall of the manifold 6 is flat and forms a continuation of the flange 8, the whole flat surface forming the upper wall of the cooling air escape passage 12. The side walls 9 of the passage are suspended from the manifold and are continued past the sides of the cylinder block 3 to guide the air flow from blower 5 past the cylinders. The bottom wall 10 of the passage 12 is secured to a flange 11 of the crankcase.
Patent GB-1237211-A (GB)
Title: Improvements in crankcase pumps in two-stroke engines
Inventor: PARKER RICHARD GRANT
IPC: F02B25/00
Filed: 1967-05-12
Abstract: 1,237,211. Two-stroke engines; rotary pumps. R. G. PARKER. Aug. 12, 1968 [May 12, 1967], No. 22080/67. Headings F1B and F1F. In a two-stroke I.C. engine, the connecting rod is shaped to divide the crank-case over a part or whole of the cycle into suction and compression compartments and provides a pumping action. As the crank-shaft rotates in the direction shown chamber 3 expands drawing in air or mixture through the intake opening until bottom dead centre when the connecting rod moves to leave only a working clearance at 7. The resultant increased clearance at 6 opens the under piston volume to the chamber 3. Meanwhile the gases filling the chamber 4, which had been in communication with the under piston volume before bottom dead centre, are compressed as the volume of chamber 4 reduces and are forced from the chamber 4 through the transfer duct to the cylinder.
Patent GB-781946-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B25/00
Filed: 1954-07-28
Abstract: 781,946. Engine construction; mounting accessories. VINCENT ENGINEERS STEVAGE), Ltd., and VINCENT, P. C. July 28, 1955 [July 28, 1954], No. 22108/54. Classes 7(2) and 7(4) In a crankcase-compression two-stroke engine, transfer grooves 21 in the inner face of a cylinder 11 and bridged by a fixed liner 10 extend from liner ports 24 to the free space within a crankcase having a peripheral wall 12 and side closures 34, 36. One closure 34 delimits a crankcase pump compression space and the other 36 carries one bearing 40 of an overhung crank-shaft 43 another bearing 44 of whidh is mounted in a housing 45 enclosing a magneto to the rotor 48 and switchoperating cam 52 of which are fast on the crank-shaft. The housing 45 has an opening closed by a cap 59. The members 34, 36, 45, a fuel tank 75 and an enginemounting bracket 73 on each side are held to the combined aluminium-alloy crankcase and cylinder 11 by through bolts 74. A cast iron or steel cylinder liner 10 is clamped at its upper end by a bolted-down cylinder head 14. Exhaust piping 31 leads to a silencer 32. A hard steel plate connecting' rod 64 has a case-hardened bore taking a roller-bearing big end journal 71 and is flanked by hardened washers 67, 70, the latter non-rotatively secured to the journal 71 by a screw 68 and peg 69. Crankcase cooling fins 33 are provided and the crankcase and cylinder may be secured together instead of integral.