baber/WOPTO huggingface dataset:
Patent GB-1587207-A (GB)
Title: Vehicle for the bulk transport of material
IPC: B60P3/22
Filed: 1977-12-02
Abstract: Each compartment of the bulk-material container (10) is provided with a conical discharge funnel (8) which is connected via a shut-off member (19) to a discharge pipe (1). On the one side, the discharge pipe is connected via a throttle member (41) to the mouthpiece (12) for the compressed air, and on the other side has an outlet for the bulk material with air. The upper end of the container is connected via an air-feed duct (14) to the mouthpiece (12), this duct (14) branching off between the mouthpiece and the throttle member. By introducing the throttle member and by the fact that the air-feed duct branches off from the throttle member it is achieved that there is constantly sufficient air at the top in the compartments. By this means, an easy and rapid discharge of the vehicle is achieved. <IMAGE>
Patent GB-1597005-A (GB)
Title: Method of dividing articles in sheet form to produce portions of predetermined shape
IPC: A24C1/04
Filed: 1977-12-05
Abstract: Pieces of a flat starting material, for example tobacco leaves, are arranged on a carrier (1), the surface of these pieces is scanned by a beam (3) of electromagnetic rays and the electromagnetic rays reflected or transmitted by the material are received by a sensor element (4). The sensor element (4) generates, in dependence on the intensity of the received radiation, an output signal which permits the edges of the material pieces and any faults, such as holes, in these pieces to be recognised and serves to control the cutting out of the parts in such a manner that the latter are cut out only within the edges of the material pieces and have a minimum of faults. <IMAGE>
Patent GB-506946-A (GB)
Abstract: 506,946. Valve amplifying circuits. GENERAL ELECTRIC CO., Ltd., CHERRY, E. C., and EDWARDS, G. W. March 25, 1938, Nos. 9173 and 35168. [Class 40 (v)] In an amplifier comprising a screen grid valve operating over a wide frequency range, the impedance elements Zs in the screen and the elements Zc in the cathode leads of which vary with frequency over the operating range and the screen current of which varies with the potential of the control grid, the impedance Zs=kZc where k is independent of frequency and may be zero and the anode impedance is related to Zc and to the valve constants to ensure that the amplifier gain is independent of frequency. The anode impedance may be divided into a plurality of impedances Z2, Z3, Zn, and an output taken from each impedance, as described in Specification 478,815. In this arrangement the impedance Zc may be zero and the anode impedance is related to Zs. The Specification gives a mathematical analysis for arrangements in which the relations between voltage and current for the anode, control and screen grids are, or are not, linear and deduces equations to be satisfied if the amplifier gain is to be independent of frequency. Numerical data are given for use with a particular pentode valve. Specification 459,251 also is referred to.
Patent GB-1100350-A (GB)
Title: Dimerisation of ª‡,ª‰-olefinic esters
Inventor: NYMAN FRANK
IPC: C07C69/52
Filed: 1965-11-30
Abstract: The dimerization of a ,b -olefinic esters, particurly of alkyl acrylates to form a -methyleneglutarate esters, is catalysed by a phosphine catalyst of formula R1R2P-R5-PR3R4 wherein R1- 3 are hydrogen or hydrocarbyl radicals, R4 is a hydrocarbyl radical and R5 is either a covalent bond between the P atoms or a divalent hydrocarbon radical, and R1- 5 may optionally be interrupted by additional phosphorus atoms.  Antioxidants may be present in the reaction. Examples describe the preparation of dimethyl a -methyleneglutarate from methyl acrylate using tetramethyl diphosphine, bis - (diphenylphosphino) methane, 1,2 - bis-(diphenylphosphino) ethane, 1,2-bis-(dimethylphosphino) ethane, o-phenylene-bis-diethylphosphine, and 1,6-bis-(diphenylphosphino) hexane, as catalysts; diethyl a -methylene glutarate from ethyl acrylate using 1,2-bis-(diphenyl phosphino) ethane, and bis-(diphenylphosphino) methane as catalysts and didodecyl a -methylene glutarate from lauryl acrylate using bis-(diphenylphosphino) methane as catalyst.  Higher oligomers of methyl and ethyl acrylates are also produced in the reactions.
Patent GB-1186092-A (GB)
Title: Improvements in or relating to Sealing Devices.
Inventor: HUNT CHARLES D ANCONA
IPC: F16J15/16
Filed: 1967-03-21
Abstract: 1,186,092. Seals. AIR REDUCTION CO. Inc. 21 March, 1967, No. 50960/69. Divided out of 1,186,091. Heading F2B. A sealing device for effecting a seal on a continuous strip of material 1 being transferred between two zones maintained at different pressures as described in the electron beam furnace of the parent Specification comprises a pair of rolls, one of which 14b is rotatable about an axis rotatable about a second axis and biased against the moving strip by the pressure difference across the roll. Spring means may also be employed in addition. The roll 14b is mounted in bearings 16b eccentric to journal bearings 24 to allow the roll to pivot upwardly over bumps in the strip 1. If desired, the wall 18 between the roll 14b and the chamber wall 20 may be arranged higher than that shown to expose more of the lower surface of the roll to the lower pressure in the next chamber.
Patent GB-1107368-A (GB)
Title: Improvements in or relating to workbenches
Inventor: DARGUE ERIC LEWIN
IPC: B25H1/02
Filed: 1963-12-27
Abstract: 1,107,368. Workbenches. DARGUE BROTHERS Ltd. 22 Dec., 1964 [27 Dec., 1963], No. 51035/63. Heading B4X. A workbench has a top constituted by a fixed part and a movable part, the movable part being arranged in either one of two alternative positions so that in one position it overlies the fixed part and the then uppermost surface of the movable part provides a first working surface and in the other position it extends rearwardly from the fixed part, so that the uppermost surface of the fixed part and the then uppermost surface of the movable part together provide a second working surface. The workbench comprises a table with a flat top 9 and two top units 15, 16, one at each side of the bench and each comprising a fixed part 19 and movable part 21. The fixed parts 19 cover only part of the top 9 but overhang the top 9 at opposite ends. A movable part 21 of equal length and of the same width or somewhat wider is connected to the part 19 by hinges 22 along the rear edge 23. The hinge arrangement permits the movable part to lie on top of the fixed part 19 or to lie on the table top 9 to the rear of the fixed part 19. A skirt 20 is fixed to and projects downwardly from the fixed part 19, a woodworker's vice being fixed to the skirt and having the top edge flush with the top of the part 19. An engineer's vice 25 is fixed on each projecting end 17, 18 of the movable parts 21 so that when the parts 21 are turned to the second working position the vices 25 hang below the movable part. A steel edge 24 is let into the upper edge of the part 21.
Patent GB-1504779-A (GB)
Title: Filing cabinet handle with lock holder
IPC: A47B95/02
Filed: 1976-11-17
Abstract: 1504779 Handles F C BROWN (STEEL EQUIPMENT) Ltd 17 Nov 1976 [12 Dec 1975]  51041/75 Heading A4U A plate 2 has an integral handle 4 and a hole 3 for receiving a lock housing 8, a cover (9), Figs. 2 to 4 (not shown), being engaged with the plate to cover the hole 3 when no lock is fitted to the plate. The plate 2 is made of polystyrene and is attached to the front of a card-index cabinet drawer 5 by a flange 6 on the plate engaging the edge of a slot (not shown) in the drawer. The plate has a rectangular hole (not shown) for holding a label and the drawer has a hole 7 aligned with the hole 3. The lock housing 8 is held in place by a back nut and the hole 7 is rectangular with rounded ends to receive a complementary part of the housing so as to prevent its rotation. The cover (9) has three resilient tabs (10) for engaging in three corresponding cut-outs around the periphery of the hole.
Patent GB-1508488-A (GB)
Title: Optical apparatus
IPC: G02B27/18
Filed: 1975-12-12
Abstract: 1508488 Optical data imaging apparatus OPTISCHE INDUSTRIE DE OUDE DELFT N.V. 12 Dec 1975 [20 Dec 1974] 51047/75 Headings G2A and G2J The apparatus allows two sets of data to be applied to e.g. an x-ray film with any desired orientation or inversion so that the data will be correctly presented to a person viewing the x-ray image. The apparatus comprises an optical system for each set of data, the axes of the two systems being parallel and each system including an image rotating means e.g. Dove prisms 4, 9. The systems also include respective optical elements (e.g. pentaprism 8 and flat mirror 3) producing an even and odd number, respectively, of reflections, which elements are mounted to be interchangeable. In the Fig., first data 1 (e.g. concerning the patient) is imaged within frame 6, on a segment 12 of photographic film by means of a flat mirror 3, a Dove prism 4 and lens 5 while second data 7 (e.g. counter digits) is imaged within frame 11 by means of pentaprism 8, Dove prism 9 and lens 10. Mirror 3 and pentaprism 8 are mounted in holders of similar shape so that they may be readily interchanged. Both Dove prisms 4, 9 are mounted in holders arranged to be rotated between discrete positions about the optical axes. A further flat mirror 2 may be added as shown to provide a mirror inversion if required. The data 1, 7 may be illuminated by flash-lamps.
Patent GB-1489197-A (GB)
Title: Process for thermoremanent duplication of magnetic recording tape
IPC: G11B5/86
Filed: 1974-11-26
Abstract: 1489197 Copying magnetic tape recordings TEIJIN Ltd 26 Nov 1974 [27 Nov 1973] 51212/74 Heading G5R In order to reduce subsequent shrinkage, a slave tape after thermoremanent copying from a master tape is further heat-treated without stretching at a temperature of at least 40 C. but below its Curie temperature.
Patent GB-1180489-A (GB)
Title: Electrical Insulators Reinforced with Glass Fibres
IPC: H01B17/32
Filed: 1968-10-31
Abstract: 1,180,489. Moulding electrical insulators. SIEMENS A.G. 31 Oct., 1968 [3 Nov., 1967], No. 51753/68. Heading B5A. [Also in Division H2] In the moulding of an electrical insulator 11 having a central insert 3 of strands of glass fibre, the multi-strand insert which has been pre-treated with an unfilled epoxide resin, is first located in the mould and is dilated by the addition of a second unfilled epoxide resin before filling the mould cavity, under vacuum, with a filled casting resin, e.g. an epoxide resin, and then curing the resins. The multi-strand insert is surrounded by an insulating preferably frosted foil 6, e.g. of polycarbonate, the top of which is fixed in recesses 7 in the cap 5 from which the insert is suspended by a spike 4, the cap resting on a packing ring 8 and having an aperture 9 through which the dilating resin is fed. The casting resin is fed through the runner 2.
Patent GB-1067358-A (GB)
Title: A process for producing high molecular weight polyoxymethylene
IPC: C08G2/00
Filed: 1964-12-24
Abstract: Low molecular weight polyoxymethylene is exposed to irradiation by ionizing or ultra-violet rays in a closed system to produce polyoxymethylene of higher molecular weight, the latter polyoxymethylene subjected to pyrolysis to give formaldehyde and this formaldehyde polymerized to give thermally stable high molecular weight polyoxymethylene.  The ionizing rays may be alpha, beta, gamma or X-rays and the ultra-violet rays may have a wave-length shorter than 3970 <\>rA.  The irradiation may be accompanied by or followed by a heat-treatment at between room temperature and 200 DEG  C. while the irradiation with ionizing rays may take place at between the temperature of a liquefied nitrogen bath and room temperature. When ultra-violet rays are used a photo-sensitizer may be present.
Patent GB-1354820-A (GB)
Title: Planetary gear system
IPC: F16H3/66
Filed: 1972-11-14
Abstract: 1354820 Change-speed gear FORD MOTOR CO Ltd 14 Nov 1972 [3 Dec 1971] 52419/72 Heading F2D A torque-converter-driven planet gear, providing three forward ratios and one reverse, which are all reduced to enable the usual final reduction drive to be omitted on a vehicle driven by a rotary engine or gas turbine, comprises two sun-ring trains 28, 36, with common carriers and interconnected as shown between input and output shafts 24, 52. Low speed ratio uses a brake 46 on the common carriers P1, P2, and a clutch 54 between the second ring R2 and output 52, both trains in series reversing and reducing. For intermediate ratio R1, S2 are held by a brake 48 and the front train acts alone to underdrive the output 52 through a one-way clutch 60. High ratio retains the brake 48 and also engages the clutch 54, the trains being again in series, the front reducing, the rear multiplying. For reverse a brake 56 is applied to R2 and a clutch 58 connects P2 to output 52, the trains being compounded, and R1, S2 and 52 all rotating reversely. Ratios in G.P. are quoted.
Patent GB-1411835-A (GB)
Title: Railway track circuit indicating means
IPC: B61L1/18
Filed: 1973-11-13
Abstract: 1411835 Track circuit receiver SOC TECHNIQUE POUR L'INDUSTRIE NOUVELLE SA 13 Nov 1973 [21 Nov 1972] 52616/73 Heading B7N A receiver for a D.C. track circuit 1 comprises an oscillator, including tunnel diode 3, resistor 5 and the primary winding of transformer 4, which receives its operating power from the track section and supplies in the absence of a train in the track section a signal to an indicating device 11 at, e.g. a signal box. Choke 7 prevents feed of the oscillator output to the track circuit and diodes 8 limit the D.C. supply to the oscillator. The oscillator output can be amplified in transistor amplifier 9 in which case the amplifier output lead can carry the amplifier power supply UB from the signal box, the amplifier output then being decoupled from the supply by components 112-114.
Patent GB-1522239-A (GB)
Title: Battery positioning arrangements
IPC: B60K1/04
Filed: 1976-12-17
Abstract: 1522239 Vehicle battery changing station J M VOITH GmbH 17 Dec 1976 [24 Dec 1975] 52693/76 Heading B8E An electric vehicle 3 is correctly positioned at a battery change station by an adjustable recessed stop(s) to receive one or more wheels. The stop(s) 6 is provided in a carriage 8 movable by a motor 12 transversely of a sill base 7 in turn movable along rails 10 by a motor 11. A fixed sill 15 ensures the horizontal levelling of the vehicle. After driving the vehicle into the stops 6 over the sill 9 it can be correctly positioned to receive a battery change as from a trolley 5.
Patent GB-1412989-A (GB)
Title: Internal combustion engines fitted with electric starters
IPC: F02N11/08
Filed: 1972-11-16
Abstract: 1412989 Starting internal combustion engines NIPPON DENSO CO Ltd 16 Nov 1972 [16 Nov. 1971] 52873/72 Heading H2H A circuit for protecting the electric starter 5 of an internal combustion engine comprises a relay having a contact 15 and a coil 16 which is energized when the alternator 9 supplies an output voltage. When an ignition switch 2 connects the battery 1 to a contact 3, current is supplied to a field winding 12 via a voltage regulator 8 and to a series circuit including a resistor 23 and a temperature dependent resistor 22. The voltage at the junction of the resistors is insufficient to switch on transistor 17 due to the low resistance of the resistor 22 so that the coil 16 is not energized and the contact 15 remains closed. When the switch 2 engages a contact 4 the starter relay 7a is energized thus closing a contactor 7 to rotate the starter motor. The alternator therefore also rotates and the voltage at its star point 13 charges capacitors 20, 21 thereby switching on the transistor to energize the coil 16, the alternator current having increased the temperature and hence the resistance, of the resistor 22. The contact 15 is therefore opened to prevent operation of the starter motor when the engine is running.
Patent GB-1523640-A (GB)
Title: Gas turbine power plant
IPC: F02C7/36
Filed: 1975-12-24
Abstract: 1523640 Gas turbine plant; turbine rotors UNITED TURBINE AB & CO KB - 24 Dec 1975 52911/75 Headings F1G and FIT [Also in Division F2] In a gas turbine plant having a separate power turbine, a further, ceramic-bladed, turbine is disposed immediately downstream of a combustion chamber and is made too small to alone supply the power required by the compressor, mechanical assistance means being provided. Stresses in the ceramic turbine are thus reduced. In one arrangement, Fig. 3, a ceramic compressor driving turbine 16 is assisted by the power turbine 17 via gearing 19, 22, freewheel 20 and infinitely variable transmission 21. In another arrangement, Fig. 13, the asssitance is provided by a second ceramic turbine 81b on the same shaft as compressor 80 and turbine 81a. Other arrangements are described involving axial and/or radial flow compressors, twin spools, rotary regenerators, adjustable guide vanes and air bearings. In Figs. 5, 6 (not shown) the ceramic turbine (32) is clamped to the hollow metal compressor driving shaft (31) by a through rod (33) having at one end resilient fingers engaging a stub shaft (46) on the turbine, slots (31a) being provided for cooling air.
Patent GB-1034240-A (GB)
Title: Improvements in devices for storing and feeding folding box blanks
IPC: B65H3/08
Filed: 1964-12-31
Abstract: 1,034,240. Feeding sheets. KLIKLOK CORPORATION. Dec. 31, 1964 [Jan. 3, 1964], No. 52983/64. Heading B6B. Apparatus for feeding box blanks to a position 24 where they are folded comprises a magazine in which a stack 11 of blanks is supported on edge on rods, main suction nozzles 33 which transport the foremost blank B 2  from the stack to the folding position 24, and additional suction nozzles 25 to separate the foremost blank B 2  from the next blank B 3  before the main nozzles grasp the blank B 2 . Bottom lips 18, 19, 20, Fig. 1 (not shown), side lips 21, 22 and a top lip 17 engage the edges of the foremost blank. The nozzles 25 are carried by a bar 27 oscillated through a small angle, and as the nozzles engage the blank B 2  suction is applied thereto causing them to move the top part of the blank B 2  a slight distance away from the next blank due to the collapse of suction chambers 125. As the bar 27 rotates, the nozzles move the top part of the blank B 2  past the lip 17, and then the suction is cut off. At this instant, the main nozzles 33 engage a lower part of the blank, move horizontally and then downwardly and in a curved path to draw the blank past a horizontal guide bar 23 and away from the stack 11 into a horizontal position, and finally move vertically downwards to deposit the blank at the position 24. The nozzles 33 are carried by a bar 35 mounted at each end on a lever 37 pivoted between its ends to an oscillating driving lever 39, Fig. 5 (not shown). The end of each lever 37 opposite to the bar 35 has lengthwise guides 45, 46, Fig. 5, engaged by a roller 44, on an arm 50 pivoted at 53 and connected by a link 51 to the driving lever 39. This mechanism imparts the required movement to the nozzles 33. The bar 27 carrying the auxiliary nozzles 25 is also oscillated from the lever 39 through a link 32. The suction to the nozzles 25, 33 is controlled by a cylindrical valve member 59, 60, Figs. 7 ... 11 (not shown), having on its spindle 63 a vane 64 engaged by abutments 65, 66 carried by the drive lever 39.
Patent GB-1377750-A (GB)
Title: Firearms
IPC: F42B10/24
Filed: 1971-11-17
Abstract: 1377750 Projectiles; firearm barrels J R MANIS 17 Nov 1971 [18 Nov 1970] 53316/71 Headings F3C and F3A A firearm barrel 11, Fig. 1, has a number of gas-relief chambers 10 formed in its bore 12 so that, when a projectile 14 passes therethrough helical notches 16 formed on the projectile 14 re-act with the chambers 10 to effect rotation of the projectile. The chambers 10 may be replaced by staggered rows or pockets 25, Fig. 3, the barrel may be lubricated, during the passage therethrough of the projectile, by lubricant stored in the cannelure of the projectile 49, Fig. 7, and forced through apertures 48 of a jacket 46 mounted on the projectile. The barrel may be provided with a false barrel 57, Fig. 3, an air space 63 between the barrels 30 and 57 allowing the latter to propagate and dissipate sound wave energy in the form of vibration. Helical grooves may extend from a tapered heel 34 of a projectile as shown in Fig. 9, may extend from a flat end of a projectile as shown in Fig. 10, and may be formed on the jacket 46, Fig. 7.
Patent GB-1451812-A (GB)
Title: Pneumatic tyre
IPC: B60C11/12
Filed: 1973-11-16
Abstract: 1451812 Pneumatic tyre treads FIRESTONE TIRE & RUBBER CO 16 Nov 1973 [8 March 1973] 53438/73 Heading B7C A pneumatic tyre has a tread comprising at least one V-section groove 2 at least one sidewall 7 of which makes an angle of at least 18 degrees with the normal to the road-contacting surface of the tread and contains recesses 6 each having an end wall 11 and two sidewalls 12, each end wall 11 in the unworn tread, Fig. 1, meeting the road-contacting surface of the tread at the junction between this surface and the associated sidewall 7 and diverging from the sidewall in a radially inward direction whereby, as the tread wears-Fig. 2, edges 9 formed where the sidewalls 12 of the recesses are caused by wear to meet the road contacting surface increase in length. The edges 9 thus act to compensate for the loss in tread grip resulting from the decrease in effective width of the or each V-section groove caused by tread wear. In the illustrated embodiment the tread comprises two parallel-walled zig-zag circumferential grooves 3, and two zig-zag circumferential V-section grooves 2 each having recesses 6 in both sidewalls, the recesses in one sidewall being offset, as shown, or aligned with those in the other widewall. The illustrated grooves 2 are symmetrical in section but the or each V-section groove may alternatively be asymmetrical (Fig. 4, not shown). The end wall 11 of each recess may be perpendicular to the road-contacting surface of the tread as shown in Fig. 3 or may be at an acute angle. The or each V-section groove may alternatively extend axially of the tyre. The spacing between adjacent recesses 6 in the same groove sidewall may be 0À1-0À25 inches and the width of the recesses 0À04-0À1 inches.
Patent GB-1066139-A (GB)
Title: Gas turbine by-pass jet propulsion engine
Inventor: MORTLOCK JAMES OSWALD
IPC: F02K1/74
Filed: 1965-12-20
Abstract: 1,066,139. Thrust reversers. ROLLS-ROYCE Ltd. Dec. 20, 1965, No. 53995/65. Heading B7G. [Also in Division F1] A gas turbine by-pass jet-propulsion engine has a jet pipe 14, a by-pass air outlet nozzle 21 surrounding the jet pipe and upstream of its nozzle 15, and is contained in a nacelle 12 the rearmost part of which is movable between a forward thrust position in which it forms a continuation of the by-pass duct downstream of the nozzle 21, and a reverse thrust position shown in broken lines. The rearmost part of the nacelle wall is split longitudinally into two parts 22, 23 each hinged to unequal length pivoting arms 24, 30, the latter of which is connected to an hydraulic or pneumatic ram 34.
Patent GB-1096540-A (GB)
Title: Internal combustion engine
IPC: F01M13/02
Filed: 1965-12-21
Abstract: 1, 096, 540. Spray carburetters; crank-case ventilation. FORD MOTOR CO. Ltd. Dec 21, 1965 [Jan.4, 1964], No.54028/65. Heading F1B. Crank-case gases are drawn into the Venturi section of carburetter 14 via a chamber 44 and a tube 56. The downstream end 58 of the tube is cut obliquely so that at high engine speeds, when the Venturi suction is high, the ram effect of the air flow impinging on the oblique end 58 reduces the suction transmitted to the crank-case and prevents excessive withdrawal of gases therefrom. The inlet to the crank-case breather pipe, Figs. 1 and 2 (not shown), faces the engine cooling fan so that the crank-case is slightly pressurized. Instead of the tube 56, a portion of the carburetter wall may be cut to form a tab which is bent inwardly to form an arcuate opening facing upstream, Fig. 6 (not shown).