baber/WOPTO huggingface dataset:
Patent GB-615088-A (GB)
Title: Improvements relating to blocks for road surface markings
IPC: E01F9/07
Filed: 1946-07-24
Abstract: 615,088. Road surface markings. SHAW, P. Aug. 24, 1946, No. 25344. [Class 3(ii)] In a road surface marker of the type comprising a resilient rubber block mounted in a holder, the holder has end walls considerably thicker than its side walls, dome-shaped corners and transverse recesses underneath to key the holder to the road. As shown in Figs. 3-5, the holder has wide end walls A, each provided with a depressed centre portion A<2> and domeshaped ends A<1>. The end walls are joined by narrow side walls B, thickened at each end F. The holder has flanges A', B' and transverse recesses G for keying it to the road. The holder contains a rubber block C mounting reflectors D'guarded by projections A<3>. The rubber block C is held in position by prongs H, Fig. 5, on the side walls B, engaging in holes C' in the block. It has a central cavity C<4>, Fig. 6, to increase flexibility, and slits C<5> on one side of which are tongues C<6> which wipe the reflectors D when the latter are forced down by vehicles. A canvas re-inforcement C<8> is moulded in the block.
Patent GB-289701-A (GB)
Title: An improved hand truck or barrow
IPC: B62B1/18
Filed: 1927-09-26
Abstract: 289,701. Stookes, A., and Sleight, W. E. Sept. 26, 1927. Hand trucks comprise two similar cast metal side members 1 connected together by a toe plate 11 and cross members 8 which are preferably also of cast metal. The side members 1 are preferably of H section metal and are provided with wings 2, 3 to act as wheel guards and as load platforms. The handles are curved as shown and provided with finger grips 19 so that together with the parts 20 alternative handles are provided. Additional handles 24 may be provided.
Patent GB-487768-A (GB)
Title: Improvements in or relating to circuit arrangements employing electron discharge devices
IPC: H01J19/40
Filed: 1936-09-18
Abstract: 487,768. Thermionic valve circuits. BULL, C. S. Sept. 18, 1936, No. 25417. [Classes 39 (i) and 40 (v)] A screen grid valve as set out in Specification 487,674 having in front of the usual positivelybiassed screen grid 14 an auxiliary grid 15 at cathode or negative potential the two grids being aligned in a direction normal to the flow of electrons from the cathode and control grid 13 to the anode 12 so that no screen grid current is obtained, is used in amplifier circuits such as output circuits or in a high frequency circuit (as shown). The main screen grid 14 is biassed through the resistance 17 and is connected to a de-coupling condenser 18 ; the cathode and auxiliary grid 15 axe earthed. A screen 5 is provided for. the output coupling. A suppressor grid or earthed plates as described in Specification 423,932 may be used. In mixed valves each screen grid may have an associated auxiliary grid as described. Specification 435,539 also is referred to.
Patent GB-1425612-A (GB)
Title: Moulding of plastics foam
IPC: B29C39/04
Filed: 1973-05-29
Abstract: 1425612 Moulding foam blocks DUNLOP Ltd 23 May 1974 [29 May 1973] 25430/73 Heading B5A A process for the batch production of blocks of plastics foam, e.g. of polyurethane, in which the blocks produced have a flat upper surface, comprises depositing a foamable reaction mixture on to a support 10 which together with side walls 23 defines a mould cavity, and when the reaction mixture begins to foam lowering the support to effect relative movement between the support and the side walls so as to increase the volume of the cavity at such a speed that the zone of contact between the upper surface of the foam and the side walls does not move, the relative movement being stopped when the foam ceases to increase in depth. Fig. 1 shows apparatus suitable for performing the method, the support 10 being movable by a scissors type lowering device 10a operated by a motor 20. The side walls 23 of the mould are hinged to enable them to be swung outwardly for access to the moulded block. Fig. 3 illustrates a control arrangement for the lowering operation in which a control plate 25 resting on the surface of the foam 36 is connected via a linear variable differential transformer 26, microswitch 28 and thyristor controller 27 to the motor 20. Upward movement of the plate 25 triggers the microswitch 28 and starts the motor 20 and thus downward movement of the tray 10, this being continued until the control plate 25 returns to its equilibrium position. The speed at which the motor 20 runs is governed by the movement of the plate 25, detected by the LVDT 26 which feeds appropriate speed instructions to the thyristor controller 27. Instead of the control plate 25 a photo-electric cell could be used to detect movement of the upper surface of the foam. As an alternative to the control mechanism illustrated, the rise of foam may be judged visually and the tray 10 lowered manually, e.g. by a winding device.
Patent GB-1339375-A (GB)
Title: Safery belt for motor vehicle passengers
IPC: B60R22/12
Filed: 1972-05-31
Abstract: 1339375 Seam WOLF-DIETER KLINK 31 May 1972 [26 July 1971] 25510/72 Heading D1G [Also in Division A3]  A vehicle safety belt comprises a loop formed by folding over one end of the belt, and stitching the folded end to the belt to form a seam having three rows of stitching 6, 7, 8 extending transversely across the width of the belt, the rows being spaced by one stitch length and the ends of the rows being connected by longitudinally extending stitches 9, 10, 11, 12. The seam may be sewn without interruption by initially making the stitch 9, then the row 8, the stitch 11, row 7, stitch 10, row 6 and finally the stitch 12. Alternatively one may start with the row 4, then stitch 9, row 8, stitches 11, 12, then row 6 and finally stitch 10. In this way double or superposed stitches are avoided.
Patent GB-1088138-A (GB)
Title: Animal food and process for making same
IPC: A23K1/00
Filed: 1965-06-17
Abstract: An animal food in the form of particles or pellets is prepared by subjecting a mixture comprising a farinaceous grain material and proteinaceous material to extrusion under pressure whereby an expanded products of reduced moisture content is obtained, drying to further reduce the moisture content, and separating the dried particles into two streams, the surface of the particles of one stream being moistened, for example with steam or a spray of water, which may be tuna cooker juice, molasses water, or water containing fish solubles, and mixed with a thickening agent such as sodium or potassium carboxymethyl cellulose, copra, hydrolysed vegetable protein, whey, powdered onion, powdered garlic, or pyrogenic silica, preferably with a colouring agent, such as iron oxide, whereby a coating of thickeners is obtained on the pellets, and applying to the still hot particles in the other stream hot liquid fat, heating the resultant fat-coated product to increase the penetration, and then mixing the two coated streams. Preferably the first stream comprise 5-20% wt. of the product.
Patent GB-655708-A (GB)
Title: A method of producing tetryl
IPC: C06B25/04
Filed: 1948-10-01
Abstract: Tetryl is obtained by condensing dimethylamine with 2,4-dinitrochlorobenzene and nitrating the dinitrodimethylaniline thus obtained or by condensing a mixture of dimethylamine and monomethylamine with 2,4 - dinitrochlorobenzene and nitrating the mixture of dinitrodimethylaniline and dinitromethylaniline thus obtained.  It is preferable to start with a methylamine-dimethylamine mixture so selected that a low melting eutectic mixture of dinitromethylaniline and dinitrodimethylaniline is obtained whereby the product may be washed and decanted in the molten state.  The nitration process may be effected continuously.  In examples: (1) a mixture of 2,4-dinitrochlorobenzene and water is heated and gradually admixed with an aqueous solution of dimethylamine and soda lye, the latter being added during or after the condensation.  The mixture is heated to 90 DEG  C. and the product then washed in the molten state with water at 90 DEG  C.  The dinitrodimethylaniline thus obtained is then dissolved in sulphuric acid and the solution added to a nitric-sulphuric acid mixture, the nitration temperature being 80-90 DEG  C.; (2) the condensation is effected with an aqueous solution of methylamine and dimethylamine, soda lye being added during or after the condensation.  Tetryl is obtained by nitrating the product as in (1).  Specification 655,707 is referred to.
Patent GB-1037936-A (GB)
Title: Improvements in spray guns
Inventor: TISCHLER MANFRED
IPC: B05B5/03
Filed: 1964-06-20
Abstract: 1,037,936. Spray-producers. INDUCAL BERLIN HERMANN. SCHLIMME VEB. June 22, 1964, No. 25686/64. Heading B2F. A spray gun adapted to spray paint &c. electrostatically or pneumatically, as required, comprises a rotatable insulating bell-shaped member 2 containing a generally radial member 2b provided with a pair of openings and a plurality of peripheral slots, a tubular metal electrode 10 through which the paint passes to an outlet nozzle 12 mounted in the insulating body 1 of the gun, an annular compressed air outlet nozzle 20 surrounding the nozzle 12, and a turbine 5 arranged to rotate the member 2 through a shaft.3. When the paint is sprayed electrostatically an air valve 15, is adjusted so that the turbine 5 rotates the member 21 and the paint contacts the rear 2a of the member 2b and the charged paint is sprayed centrifugally: when pneumatic spraying is effected the said valve is adjusted so that the turbine is inoperative and an opening 2f is opposite the nozzles 12, 20, and compressed air flows through the nozzle 20. The two spraying processes may be combined if necessary to spray articles of unusual shape. A switch 23 is provided to shut off the high voltage from the electrode 10.
Patent GB-1278399-A (GB)
Title: A current amplifying transistor
Inventor: MIYATA TAKEO
IPC: H01L21/00
Filed: 1971-04-19
Abstract: 1278399 Semi-conductor devices MITSUMI ELECTRIC CO Ltd 19 April 1971 [31 March 1970] 25752/71 Heading H1K In a hook-collector transistor a common-base current amplification factor equal to or greater than 1 is achieved by providing an impurity concentration exceeding 10<SP>18</SP> at./cm.<SP>3</SP> in the collector region 13, and by fulfilling the conditions D 12 >>D 11 , D 14 >>D 13 , W 2 <<L 2  and W 3 <<L 3 , where D 11 , D 12 , D 13  and D 14  are the impurity concentrations in the base region 11, emitter region 12, collector region 13 and hookcollector region 14 respectively, W 2  and W 3  are the widths of the base and collector regions 11, 13 respectively, and L 2  and L 3  are the minority carrier diffusion lengths in the regions 11 and 13 respectively. The device illustrated is made by alloying In dots into an N-type Ge wafer 11 to form recrystallized regions 12, 13 and alloying an Sb dot with the In remaining on the region 13 to form a further recrystallized region 14. Diffusion or ion implantation may alternatively be employed.
Patent GB-1314402-A (GB)
Title: Devices for checking a group of symbols
IPC: G06F11/10
Filed: 1970-05-28
Abstract: 1314402 Error correction PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 May 1970 [30 May 1969] 25786/70 Heading G4A Data words on line 2 are provided with a code each digit of which depends on the value of each data digit and its position in the word. The word may be supplied to a converter 1 (also Fig. 2, not shown) receiving the data and a signal from a counter identifying the location of a digit in a word or to a converter shown in Fig. 3. The code is supplied to unit 4 where it is combined with the previous output from unit 4 or held in store 6 and the combination is supplied to store 6. An output from the converter 1 and from store 6 are supplied to circuit 9 providing information determining a checking signal. Converter 1 (Fig. 3) may comprise a counter 13 receiving pulses from line 2 equal in value to the digit, e.g. seven pulses are supplied to counter 13 and to first clock pulse inputs marked by a single arrow in register 20 moving a "1" to stage 7<SP>1</SP>. A number of pulses equal to the position of the digit in the word are supplied to a second clock pulse input indicated by two arrows so that data is shifted as indicated by the lines having two arrows, e.g. the "1" is at stage 8<SP>1</SP>. The second clock pulses are supplied by auxiliary counter 24 and comparison circuit 23. Further first clock pulses are supplied until the "1" is in stage "0" i.e. two pulses are applied via conductor 3 to circuit 4. The converter tables are shown in the Specification. Unit 4 operates in accordance with multiplication of a dihedral group, preferably having a value m so that decimal numbers can be used. Multiplication follows the table where #0-#4 are 0-4 respectively and #0E- 84E ire 5-9 respectively.
Patent GB-1424730-A (GB)
Title: Overrun brake
IPC: F16D66/02
Filed: 1973-05-30
Abstract: 1424730 Winch brakes C H ARNOLD 30 May 1973 25811/73 Heading B8B [Also in Division F2] A power-driven hoist shaft 2 rotatable against a load is braked to hold the load if the power is removed; the braking is accomplished by a disc brake assembly which is energized by the action of interengaging cam members 10, 15 adapted for relative axial and circumferential movement one of which members, 15, is formed with camming surfaces which act to give relative axial movement increasing as a function of the relative circumferential movement as such circumferential movement increases to thereby give braking adjusted to the value of the load. As shown in Fig. 1 the cam member 15 is secured to and moves with the shaft 2 and the cam member 10 is secured to a brake disc 8 adapted to engage a brake plate 7. A brake disc 4 secured to shaft 2 is adapted to engage a brake plate 6 and the brake plates 6, 7 are urged apart by springs 12. Rotation of the plates 6, 7 is prevented by studs 13 which also permit movement of the plates 6, 7 toward and away from each other. The shaft 2 is driven by a driving member 18 secured to a driven pulley 16; the driving member 18 drives the cam member 15 counterclockwise (as seen in Fig. 6) to hoist the load via lugs 26 on the cam member 15 whilst radially aligned lugs 25 on cam member 10 act to prevent any axial force being exerted by the cam members 10, 15. In clockwise rotation to lower the load the driving member 18 drives the lugs 25. The cam member 15 has three camming surfaces 30, 31, 32 co-operable with complementary surfaces 33, 34, 35 on cam member 10, and radially outwardly of surfaces 30, 31, 32 the cam member 15 has camming surfaces 38, 39, 40 co-operable with complementary camming surfaces 41, 42, 43 on cam member 10, and at a greater angle to a plane perpendicular to the shaft axis than surfaces 30, 31, 32. Should power to the shaft 2 be removed, lugs 26 rotate with cam member 15 in a clockwise direction (Fig. 6) so that the inner camming surfaces first engage and subsequently the outer camming surfaces engage to thereby give a braking force dependent on the load, disc 8 engaging plate 7 and plate 6 engaging disc 4. In the embodiment of Fig. 4 a cam member 50 attached to brake disc 8 has three rollers 56, 57, 58 co-operable with camming surfaces 53, 54, 55 on cam member 51 secured to shaft 2. Camming surfaces 53, 54, 55 increase in slope as relative rotation between the members 50, 51 increases.  Fig. 4 also incorporates wear adjusting means to adjust the positions of brake plates 6, 7 to compensate for wear of elements 5, 9 of discs 4, 8. Fig. 15 illustrates a multiple disc brake with brake plates 6, 7 and interposed friction discs 93. Cam members 91, 92 are provided which allow the load to be driven in either direction. The arrangement of lugs on the cam members 91, 92 in such a bidirectional hoist is illustrated in Figs. 17-19 (not shown). (For Figure see next page.)
Patent GB-1508846-A (GB)
Title: N-way power divider with remote isolating resistors
IPC: H01P5/12
Filed: 1975-06-18
Abstract: 1508846 Microwave power dividers HAZELTINE CORP 18 June 1975 25882/75 Heading H1W An N-way power divider for operating over a selected frequency band comprises N quarter-wave transmission lines coupling a single input to N outputs, one terminal of each of the N outputs being connected to a common reference terminal by a respective resistive impedance which takes the form of a loaded transmission line. In the stripline embodiment of Fig. 3, common input port 11 is coupled by quarter-wave lines 12a, b, c to three output ports having respective terminals 13alpha, b, c and a common terminal provided by the ground plane 17. Each terminal 13 is connected to the inner conductor 19alpha, b, c of a respective transmission line 18a, b, c, the transmission lines being terminated by dissipative loads 28a, b, c which may be suitably cooled. The transmission lines 18 have a common outer conductor 20 which forms the inner conductor of a short-circuited quarter-wave line 22. The effect of the latter is to provide an open circuit between the ground plane 17 and a point 15<1> on the outer conductors of lines 18. The three output terminals 13 are, in effect, connected to a common reference terminal 15 by a star formation of three resistances. In the modification of Fig. 4 (not shown) the three output ports (13) are coupled to the inputs of lines (18) by half-wave striplines (16). The lines (18) are terminated by dissipative loads (28) and have a common ground plane (32). The latter is connected to the ground plane (17) by a short circuited parallel-plate line of length (L) equal to a quarter-wavelength.
Patent GB-1456800-A (GB)
Title: Reverberation devices
IPC: G10K15/12
Filed: 1975-06-18
Abstract: 1456800 Reverberation arrangement POLYGRAM GmbH 18 June 1975 [3 July 1974] 25885/75 Heading H4R In an arrangement for producing reverberation in an electrical analogue signal X the signal is applied to an A/D converter 1 and fed to a store 3 via an adder 2 to which the second applied signal E2 is an output from the store 3 reduced in for example a substractor circuit 5, the arrangement being controlled by repeated cycles T 1 , T 2 , T 3  of clock pulses and the reverberated analogue signal being produced by D/A conversion. The arrangement may include a succession of insertable shift register stores 3a- 3n providing different amounts of feedback delay.
Patent GB-630403-A (GB)
Title: Improvements in and relating to operating gear for aircraft displaceable cockpit hoods and the like
IPC: B64C1/14
Filed: 1947-09-24
Abstract: 630,403. Aircraft cockpit hoods. BLACKBURN AIRCRAFT, Ltd., HAND, P. G. E., and BULMER, N. Sept. 24, 1947, No. 25922. [Class 4] To enable an aircraft cockpit sliding hood, normally moved by an electric motor, to be operated in the event of an electric supply failure, a manual operating-gear is provided. A fixed supporting body 1 mounted on the cockpit inner wall contains a rotatable cage 2 having a reduced diameter portion 2<SP>1</SP> on which is mounted for free rotation a sprocket 4 provided with a notched flange 5. Within the cage 2 is an axially-displaceable spring-loaded member 6 provided with flanges 6<SP>1</SP> to support rigidly a pin 8. A folding handle 10, pivoted at its upper end, bears against an extension 6<SP>2</SP> of the member 6, extended at its opposite end 6<SP>3</SP> to bear against a lever assembly (Fig. 3, not shown), which is connected by a cable to the clutch of the electric driving motor. To operate the hood independently of the motor drive, the handle 10 is thrust upon to displace axially the member 6 and cause the pin 8 to engage the notched flange 5 and to disconnect the motor clutch. Rotation of the handle will then cause the sprocket 4 to actuate an operating chain connected to the sliding hood. The clutch operating lever assembly may be connected to an externally-operable device to enable the motor clutch to be disconnected before the hood is moved by direct effort.
Patent GB-699992-A (GB)
Title: Improvements in or relating to non-selective attenuators employed for ultra-high frequencies, matched on both sides with coaxial lines
IPC: H01P1/202
Filed: 1951-11-06
Abstract: 699,992. High-frequency attenuators. WALLAUSCHEK, R. Nov. 6, 1951 [Nov. 18, 1950], No. 25990/51. Class 40 (viii). A high-frequency attenuator consists of a length 101 of cylindrical guide having at one end an input coaxial line having its outer 100 connected to the guide, and its inner conductor 103 connected to a conducting but resistive coating 110, deposited on an insulating disc 108 and connecting conductor 103 to the guide wall 101, while at the other end of guide 101 the outer conductor 102 of an output coaxial line fits within the guide and its inner conductor 105 is connected by a flared member 112, consisting of a resistive coating on an insulating support, with a metal plate 113 insulated from the outer conductors. The attenuator is adjusted by sliding the output construction along the guide. Reference has been directed by the Comptroller to Specification 626,632.
Patent GB-1182985-A (GB)
Title: Random Particle Impact Microscope.
IPC: H01J37/285
Filed: 1968-05-30
Abstract: 1,182,985. Random particle impact microscope. UNITED STATES ATOMIC ENERGY COMMISSION. 30 May, 1968 [15 July, 1967], No. 26004/68. Heading H4F. [Also in Divisions G1 and H1] A microscope using particle interactions to determine the structure of a specimen 13 comprises a random source 11 of charged particles such an electrons, heavy ions or protons providing a parallel beam directed at the specimen 13, a detector 18 for secondary radiation from the specimen, means for detecting the position of the path taken by each particle 14 through the specimen 13 and display and recording means in which the image position is controlled by the signals from the particleposition detecting means and in which the image intensity is controlled by the signal from the secondary radiation detector 18. The microscope may be enclosed in a vacuum chamber to enhance its resolution. The secondary radiation may comprise atomic or nuclear particles, secondary electrons, X-rays or visible light, and the detector 18 is selected accordingly. The particle-position detector preferably comprises two wedge-shaped lithium-drifted silicon crystals 43, 44, having transversely arranged directions of taper. Since each of the crystals 43, 44 develops an electric charge across its thickness dependent in magnitude upon the path length of the particle 14 therethrough, signals derived from the crystals 43, 44 provide a measure of the Y and X co-ordinates respectively of the path of the particle through the specimen 13. In this case the particle source 11 must produce a monoenergetic beam, but this condition may be relaxed if other types of detector are used. A diverging magnetic lens 41, 42 may be provided to improve the sensitivity of the position measurement. The final image is reproduced by an oscilloscope 21 in which the electron beam intensity is controlled by the output from the detector 18, and the image position is controlled by the output from the crystals 43, 44. The position and intensity of each particle interaction is recorded individually, since the source 11 is of relatively low intensity, and a camera 36 integrates the images over a period of time to produce a complete indication of the structure of the specimen. Alternatively the oscilloscope 21 may be of the memory type to eliminate the need for the camera 36.