baber/WOPTO huggingface dataset:
Patent GB-1211599-A (GB)
Title: Process and apparatus for continuously mixing a pigment dispersion into a polyamide melt
Inventor: MEYER ERNST
IPC: B01F23/47
Filed: 1968-09-26
Abstract: 1,211,599. Mixing apparatus. GLANZSTOFF A.G. 26 Sept., 1968 [21 Nov., 1967], No. 45671/68. Heading B1C. [Also in Division C3] In a process for mixing a pigment dispersion with a polyamide melt immediately after the end of the continuous polymerization, the dispersion in a vehicle soluble in polyamide is added to the melt in a thin stream and the mixture divided into layers less than 1500 microns thick which are relatively displaced. The mean flow velocit yof the melt may be 4Î10<SP>-4</SP> to 7Î10<SP>-4</SP> m/sec. and the peripheral speed of the dividing, means 0.4 to 3.1 m/sec. An apparatus comprises a pear-shaped vessel 4 having a heating jacket 3, the flat cover having inlets for melt and pigment dispersion from vessels 1, 12. A stirrer 13 having pitched blades 8 is spaced 800-2,000 microns from the cover; it has preferably 3 or 4 blades, a pitch angle of 10-30, and is operated at 40-400 rev/min. The cross-section of the vessel at the stirrer may be 200cm<SP>2</SP> per ton of daily throughput. A dispersion may have 10-50% (in Examples, 25%) of pigment in butyrolactam as vehicle.
Patent GB-1205683-A (GB)
Title: Improvements relating to headlamps for motor vehicles
IPC: H01K9/08
Filed: 1968-09-27
Abstract: 1,205,683. Vehicle headlamp. ROBERT BOSCH G.m.b.H. 27 Sept., 1968 [30 Sept., 1967], No. 45910/68. Heading F4R. [Also in Division H1] In a vehicle headlamp having a reflector, filaments for the main and the dipped beam and a screen associated with the dip filament, the screen has cross-sections in planes perpendicular to the optical axis of the reflector with at least approximately parabolic shaped edges and in planes perpendicular to the first planes at least approximately elliptical shaped edges. A main beam filament 3 is provided in the lamp at the focus 4 of the reflector 1. Alternatively the filament may lie along the optical axis or be U- shaped about the focus. A screen 6 is provided adjacent the dip filament 5 to reflect light rays from the filament back towards the reflector 1. The dip filament 5 lies along the optical axis of reflector 1 and has the last turn nearest the apex of reflector 1 lying at a focus of the ellipse. The filament 5 also lies along the focal line of the paraboloid screen (Fig. 4, not shown). In a modification the parabola-like section may be circular in the vicinity of the parabola apex. The screen may be placed so that the focal line of the paraboloid is staggered upwards or downwards with respect to the dip filament.
Patent GB-1473596-A (GB)
Title: Method of and means for the protection of low plant growths
IPC: A01G13/00
Filed: 1974-10-23
Abstract: 1473596 Perforated film BREVETEAM SA 23 Oct 1974 [24 Oct 1973] 45936/74 Heading B5B [Also in Division A1] A ribbon-like transparent plastics foil has for protecting low plants a dense (60-2500 slits/dm<SP>2</SP>) array of parallel slits spaced one behind the other in lines parallel to the foils longitudinal direction, these lines being mutually and longitudinally displaced so that a slit lies nest to a space in the adjacent line. The longitudinal and lateral separations between slits are both, at most, equal to the slit length of 2-12 mm. Slit-free strips, particularly at the foil's edges, may be provided. The foil is placed over the sown or planted soil, with its lateral edges held down by soil. As the plants grow, they force the slits open, to supply increased ventilation as is required for larger plants. For delicate shoots, a roof ridge support is provided and is gradually raised by hand to effect this increase in ventilation.
Patent GB-1450917-A (GB)
Title: Valve seat retaining devices
IPC: F16K5/06
Filed: 1973-10-02
Abstract: 1450917 Stud fasteners SAUNDERS VALVE CO Ltd 2 Oct 1974 [2 Oct 1973] 46078/73 Heading E2B [Also in Division F2] A frusto-conical element 8 of a retainer 10 has slots 9 spaced about its large end whereby it is resiliently deformable radially inwardly, the small end having radially outward extending surfaces 7 which are resiliently displaceable axially. The retainer may be used in a valve assembly in which a seat 4 and seal 5 are urged towards a ball closure 2 the large end of the retainer being sprung into a groove 13 and the resilient flanges 7 providing axial loading on the seat. A second seat may be retained by a stop 6 or by a second retainer (not shown).
Patent GB-1322556-A (GB)
Title: Demand pacemakers
IPC: A61N1/372
Filed: 1970-09-29
Abstract: 1322556 Heart pacemakers AMERICAN OPTICAL CORP 29 Sept 1970 [1 Oct 1969] 46191/70 Heading A5R [Also in Division H3] An implantable demand heart-pacemaker comprises electrodes E1, E2 for connection to a patient's heart, pulse generating means for applying periodic pulses to the electrodes, means for inhibiting the pulse generator when a natural heartbeat is detected, a magneticallyoperable switch 85 for controlling the pulse generator to operate at different rates, and a further magnetically-operable switch 80 for selectively preventing the inhibiting of the pulse generator. A capacitor 65, which charges via the heart and via a resistor 59, discharges through the heart when a transistor T9 is rendered conductive by transistors T7 and T8 which conduct when the potential across a capacitor 57 is high enough. The rate of charging of capacitor 57 determines the stimulating pulse repetition frequency and is dependent mainly on the value of resistors 35a, 35b. Resistor 35a may be shorted out by a bistable magnetic reed switch 85-88 to provide two stimulating frequencies. Capacitor 57 discharges via transistors T7, T8 and a resistor 37 which is variable to alter the stimulating pulse width. The pacemaker is inhibited by signals through capacitor 53 which render transistor T6 conductive to discharge capacitor 57 therethrough. A monostable magnetic reed switch 80-82, which has a stable open-circuit state, may be operated to effectively shortcircuit transistor T6 so that the pacemaker is free-running. An amplifier comprising transistors T1, T2 is responsive to signals at electrodes El, E2 and is frequency-discriminative so that frequency components below 20H2 and well above mains frequency are amplified less than intermediate frequencies (the ECG R wave having components of 20-40 H2). Signals from this amplifier pass via a rate-discrim ination circuit to provide inhibiting signals at capacitor 53. The rate-discriminator comprises transistors T3, T4, T5 and prevents triggering of transistor T6 by stray signals of mains frequency, or by narrow R.F. pulses, but permits natural R wave signals to trigger transistor T6 to inhibit the pacemaker in the absence of repetitive signals having a repetition frequency above about 40 HZ. A Zener diode 67 shortcircuits any very large signals appearing across electrodes El, E2.
Patent GB-1527756-A (GB)
Title: Semiconductor voltage regulator for a road vehicle battery charging system
IPC: H02J7/24
Filed: 1975-11-11
Abstract: 1527756 Automatic voltage control DUCELLIER ET CIE 11 Nov 1975 [27 Dec 1974] 46482/75 Heading G3R A semi-conductor voltage regulator has a Darlington pair output stage. The pair is protected against transient over-voltages by a high threshold Zener diode connected directly between the base of the input transistor of the pair and one of the supply terminals of the regulator. As shown in Fig. 1, a vehicle battery 3 is charged from an alternator 1 with a field winding 2 connected in series with a Darlington pair 14, 15. The transistors are switched on and off by a feedback loop 17, 18, 19 and a transistor 12 responsive to the output of a sensing circuit including a voltage divider 6, 7 and a Zener diode 11 which sets the regulated voltage level. A further Zener diode 22 is connected directly between the base of the transistor 14 and one of the regulator terminals. The conduction threshold of the Zener diode 22 is at least five times the value of the regulated voltage, so that its dynamic inverse resistance is sufficient to limit current in the diode and in the transistor base to safe levels. In an alternative embodiment, one end of the winding 2 is earthed, and the Zener diode 22 is connected between the earth terminal and the base of transistor 14, Fig. 2 (not shown).
Patent GB-1489767-A (GB)
Title: Process and apparatus for the controlled increase of the depth of penetration of blast in a blast furnace
IPC: C21B5/00
Filed: 1974-10-28
Abstract: 1489767 Tuyeres MESSERSCHMITTBOLKOW-BLOHM GmbH 28 Oct 1974 [6 Nov 1973] 46571/74 Heading F4B A blast furnace tuyere 3 in which combustion of a supplementary fuel takes place in order to vary the depth of penetration of the blast into the furnace comprises a spiral fuel atomizer 8 at the entrance to a widened combustion chamber 10 and additional fuel nozzles 9 in the delivery nozzle. The combustion chamber has a perforated heat shield 11 with cooling water channels 12 in the delivery nozzle. In a modification (Fig. 2) the tuyere has the same diameter throughout including the combustion zone which has a pair of fuel distributers arranged axially in front of it.
Patent GB-1412132-A (GB)
Title: Dynamic data storage cell
IPC: H01L27/07
Filed: 1972-10-10
Abstract: 1412132 Semi-conductor matrix stores TEXAS INSTRUMENTS Inc (P M Frandon) 10 Oct 1972 46587/72 Heading G4C [Also in Division H1] An integrated matrix of IGFET storage cells for use in a dynamic random access memory comprises a grounded wafer of P type silicon with parallel interleaved N + and P + strips 70, 74 (Fig. 5) formed by diffusion in one face and further N+ regions 76 individual to each cell each overlying part of a P + strip and having a portion 76a extending beyond the strip towards the adjacent N + strip. Strip 70 constitutes the drain regions of all the transistors in a column while regions 76 constitute the sources, the junction capacitances of which are enhanced by the heavy doping of strips 74. A layer of insulation 80 of silicon dioxide and/or nitride is 500  thick over the IGFET channels 78 and 10,000  thick elsewhere. Each row conductor 82 which may be of aluminium or silicon runs normal to the strips and forms the gate of all transistors in the row. One cycle of operation of the memory is as follows: A refresh cycle is initiated by applying clock pulse # 1  to switch on transistors Q 3  and Q 2  (Fig. 2) thus switching off transistor Q 4  by grounding its gate and connecting supply voltage V DD  to the respective column data line input line Bj. Termination of the pulse leaves Bj at this voltage and the gate of transistor Q 4  at ground. Row enable line Xi is then brought to a high voltage to couple the cells in its row to the column. Considering a particular cell, if its source capacitance is charged (logic 1) it remains charged and Bj remains at the same voltage whereas if it is discharged (logic 0) it recharges and since its capacitance equals that of Bj the potential at 32 is halved causing Q 2  to switch off. On application of clock pulse # 2  to switch on Q 1  V DD  is grounded via Q 2  if a logic 1 is stored and Q 4  remains off and the voltage on Bj refreshes the stored charge whereas if logic 0 is stored Q 4  is on thus grounding line Bj to refresh the stored 0. The same procedure is used for each row. To read out information the voltage on row data line Xi is again raised, the appropriate column data line Bj selected by switching on transistor Q 6 . If a 0 is stored, since Q 4  is on a circuit to earth is completed via Q 4 , Q 5  and Q 6  and load resistor R 0 , but if a 1 is stored Q 4  is off and no current flows in Ro. Information is then written in by applying an enable pulse WE to switch on transistor Q 8 . If a 1 is already stored, since Bj is not grounded data is written by application of the appropriate voltage via Q 8 . If a 0 is stored Bj is grounded but a 1 may be written by application of a sufficient voltage via Q 8  since the voltage drop in Q 4  causes Q 2  and thus Q 4  itself to switch off thereby raising Bj to the applied voltage to charge the cell. Any suitable decoding circuits may be used with the matrix but a preferred circuit is described (Figs. 6a and 6b, not shown).
Patent GB-1220967-A (GB)
Title: Boron sources for plant life
IPC: C05B17/00
Filed: 1968-10-04
Abstract: 1,220,967. Fertilizers. MONSANTO CO. 4 Oct., 1968 [6 Oct., 1967], No. 47217/68. Heading C1B. Plants or the soil are treated with boron phosphate (borophosphoric acid) which may be in the form of spent catalyst (for the vapour phase reaction of adipic acid with ammonia to form adiponitrile). The boron phosphate may be applied as a solid or in solution. It may be applied alone or together with other fertilizer constituents. Elements specified are N, K, Na, Ba, Mg, and Fe.
Patent GB-1030778-A (GB)
Title: Improvements in or relating to logic circuits
Inventor: BALDWIN FRANCIS HENRY
IPC: H03K3/037
Filed: 1964-11-20
Abstract: 1,030,778. Counters; shift registers. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Nov. 20, 1964, No. 47270/64. Headings G4A and G4C. Each stage of a counter or shift register comprises six NAND or NOR gates, four of which are concerned with input and two with storage. A succession of short-duration clock pulses is applied to lead SP while the input pulses applied to IP are longer and non-coincident with the clock pulses. With the stage registering zero the storage NAND gates E5, E6 are respectively at 0 and 1, while the input gates E1-E4 are 1,0,1,1, respectively. An input pulse reverses E4 and E2. The beginning of the next clock pulse changes E1 to E0 and so changes over the storage gates E5, E6. The end of the clock pulse restores E1 to E1. The storage gates remain unchanged by further clock pulses until another input pulse arrives when E3 controls the restoration of E5, E6 to original condition. The stage may be set to 1 by an input of 0 on lead #S or to 0 by an input of 0 on lead R irrespective of the timing with relation to the clock pulses. Binary counter. Inclusion of the lead BDL enables the circuit to operate as a stage in a binary counter. The NAND gates may be replaced by NOR gates, #S and #R being interchanged and their signals inverted.
Patent GB-1400737-A (GB)
Title: Gear shift linkage with power-assisted shift in motor vehicle transmissions
IPC: F16H61/30
Filed: 1972-10-18
Abstract: 1400737 Change-speed controls ZAHNRADFABRIK FRIEDRICHSHAFEN AG 18 Oct 1972 47932/72 Heading F2D In a power-assisted gear change mechanism comprising a rotatable and slidable shift rod 2 for gear selection and establishment, sliding of the shift rod is assisted by a fluid pressure actuator 4, the piston of which is connected to a shift lever 3 and which is controlled by a valve 5 incorporated in the shift rod 2. The valve 5 comprises a housing 15 which contains a slidable valve member 19 and on which a sleeve 14 secured to the valve member 19 is axially slidable. The sleeve 14 and the housing 15 are connected by a spring 36 and abutments 26-29 limit their relative movement whereby push or pull on the rod 2 outside the neutral position selects one or other of two shift positions connecting a pressure inlet 16 with one or other chamber 21, 22 of the actuator 4 and the valve transmits push or pull directly mechanically beyond the spring travel.
Patent GB-1153867-A (GB)
Title: Improvements in and relating to Footwear Manufacture
IPC: A43B11/00
Filed: 1965-11-11
Abstract: 1,153,867. Boots &c. BREVITT SHOE MFRS. Ltd. and A. ATLAS. 25 Oct., 1966 [11 Nov., 1965], No. 47956/65. Heading A3B. A shoe 1 having an outer 7 of crepe rubber is made by securing the upper 5 to an inner sole 4 and an intermediate sole 2, securing a layer of crepe rubber to the underside of the intermediate sole 2 e.g. by a neoprene based adhesive, the layer of crepe rubber having a marginal portion extending beyond the sole 2 and having cut away darts 9 in the heel and toe region, warming the layer 7 to soften it, bending the marginal portions upwardly to engage the edge of the inner sole 4 and sole 2 so that the sides of the darts 9 meet to form an uninterrupted cover 11 along the edge and securing the upturned marginal portion to the edge. The layer 7 of crepe rubber may be warmed by blowing hot air on to the layer and the marginal portion is thumbed up to engage the edges of the inner sole 4 and sole 2 to which it is attached by adhesive. The top edge of the upturned portion 11 is then trimmed level with the bottom edge of the upper 5. The upper 5 has an out-turned edge which is attached to the inner sole 4 and sole 2 by stitching 6.
Patent GB-1121506-A (GB)
Title: Improvements relating to envelopes
Inventor: VOYSEY RONALD GEORGE
IPC: B65D27/20
Filed: 1965-11-12
Abstract: 1,121,506. Envelopes. CHAPMAN & CO. (BALHAM) Ltd. 2 Nov., 1966 [12 Nov., 1965], No. 48169/65. Heading B6A. An envelope of the kind having a releasable tuck-in inspection flap 4 comprises : front and back panels 1, 2; a pocket formed by a pair of flaps 11 each integral with panel 2 and separated from each other by a central cut out 9, the flaps 11 being folded to provide a double thickness of material and secured to the pack panel to provide a slit; and the inspection flap 4 being formed integral with the panel 1 and double folded to provide a portion extending over the outside of the pocket and formed with a tongue portion 4a which secures the flap 4 by extending into the slit formed between the flaps 11 and the back panel 2. A tab 13 is provided in the flap 4 to facilitate opening.
Patent GB-1291266-A (GB)
Title: Material for the physiological treatment and refatting of human skin
Inventor: JACOBI OTTO KARL
IPC: A61Q5/02
Filed: 1969-10-01
Abstract: 1291266 Topical compositions KOLMAR LABORATORIES Inc 1 Oct 1969 [23 Oct 1968] 48322/69 Heading A5B [Also in Divisions C2 and C5] A composition for topical application comprises an ester of an aliphatic branched chain an alcohol and an aliphatic hydroxy acid, the alcohol containing at least 8 carbon atoms in the molecule and the branch chain being an alkyl group containing from 1 to 4 carbon atoms. In particular, the composition may be one comprising a substance (e.g. a surface active agent) capable of defatting human skin, the ester acting to prevent the defatting action of the substance and to reduce the irritational effect of the substance when applied to the skin.
Patent GB-1160769-A (GB)
Title: Improvements relating to Connecting of Tapered Spigots and Sockets
Inventor: FOWLER MICHAEL JOHN HENRY
IPC: B23B31/00
Filed: 1966-10-28
Abstract: 1,160,769. Tool shanks. PADLEY & VENABLES Ltd. 19 Oct., 1967 [28 Oct., 1966], No. 48360/66. Heading B4C. [Also in Divisions B3 and F2] A tapered spigot or socket comprises ductile material secured thereto and standing proud of the tapered surface, the exposed area of the ductile material not exceeding 50% of the area of the tapered surface and projecting beyond the tapered surface by 1À5%-4À5% of the largest dimension in cross-section at the mid-point of the taper so that upon the spigot or socket being assembled tightly with a complementary socket or spigot the ductile material is extruded between and wiped over the tapered surfaces. The tapered surface may be of circular, polygonal or elliptical cross-section and can be used in connecting a rotary drill bit or a percussive masonry bit to a driving member. The ductile material may be copper, zinc, aluminium or alloys thereof, or a plastics material such as nylon, and it may be secured by an adhesive such as varnish. The ductile material may be secured to the spigot or socket or both. In an example, Fig. 2, a length of copper wire 4 is bent around an annular groove 3. Material of part-circular cross-section may be used, giving the insert a frusto-conical outer surface. Longitudinal inserts may be used, Figs. 3, 4 (not shown), which may run in a spiral fashion, the receiving slots being of rectangular or rounded cross-section. A filigree sleeve (11), Fig. 6 (not shown), of knitted copper wire may be used, secured by shellac. Sockets.-Grooves 10 of rectangular or rounded cross-section are provided for rectangular strips or wire, respectively.
Patent GB-1092799-A (GB)
Title: Display frame
IPC: A47G1/14
Filed: 1966-11-01
Abstract: 1,092,799. Picture frames. BERGH BROS. CO. Inc. Nov. 1, 1966 [Dec. 14, 1965], No. 48848/66. Heading A4X. A frame for a picture &c. comprises a strip member 12 which is bent around a transparent panel 14 and which is provided at one end with a detent (34) which snaps into an aperture in a lip (26) on the other end. Alternatively the strip is made up of a number of separable sides interlocking at their ends. The strip has two parallel flanges 18a, 18b which need not be continuous, and the transparent panel is fixed in the frame by one or more strips 36 of heavy paper or leather which are wedged between the transparent panel and the flanges 18a, 18b. The transparent panel may abut the forward flange 18a or be located intermediate the two flanges 18a, 18b. The picture 42 is held against the transparent panel 14 by a pan-shaped back member 16 which is pushed into the frame and which has a pivoted leg 52. A flat surface 56 on the leg seats against the picture to locate the leg in operative position.
Patent GB-1523988-A (GB)
Title: Annular brine head equalizer
IPC: C25B9/19
Filed: 1976-11-26
Abstract: 1523988 Annular brine head equalizer PPG INDUSTRIES Inc 26 Nov 1976 [28 Nov 1975]  49379/76 Heading C7B A bi-polar electrolyzer comprises a plurality of bi-polar units 11, 12, 13, 14 and 15 in series, the anodic side of one bi-polar unit and the cathodic side of the next adjacent bi-polar unit forming an electrolytic cell therebetween having a catholyte and an anolyte chamber. The electrolyzer contains electrolyte equalizing means between adjacent cells comprising conduit means 63 communicating with the catholyte chamber of one of the cells and passing electrolyte through a first aperture 65 into the anolyte chamber of the next adjacent cell via aperture 67. The equalizing means comprises channel carrier means 71 with channel 73 communicating with apertures 67 and 65; gasket 79 and compressive means 97.
Patent GB-1519797-A (GB)
Title: Wall structure
IPC: E04H9/14
Filed: 1975-12-02
Abstract: 1519797 Fire and pressure resistant wall BRODERNA WESTMANS PLATSLAGERI 2 Dec 1975 [2 Dec 1974 9 Oct 1975] 49480/75 Heading E1W A fire and pressure resistant wall consists of a plurality of sections, each section composed of a rectangular plate member 4 with its vertical edges formed into flanges 6 and joined to the flange of the adjacent section by means of bolts 7. Sealing means 9 are disposed between the flanges and strengthening pieces 10 are incorporated in the assembly, (Fig. 4). The wall is secured to the floor and ceiling by means of U-shaped channel members 16 and 18 (Figs. 5 and 6), and sealing means 13, 15, 20, 23, and the latter channel member may be adapted to support sections forming a ceiling 29 (Fig. 7). The sections are filled with an insulating material 25 and cover plates 26 are provided to clad the exterior of the wall, (Fig. 9).
Patent GB-1034420-A (GB)
Title: Document sorting
IPC: G06K13/04
Filed: 1963-12-16
Abstract: 1,034,420. Delivering documents. SPERRY RAND CORPORATION. Dec. 16, 1963 [Dec. 28, 1962], No. 49566/63. Heading B6H. [Also in Division G4] A rotary stacker is provided at each output hopper of a document sorting machine. Documents 76 are fed from respective sorting deflectors by belts 302, 304 and enter aligned arcuate slots 336 in two or more discs rotating on shaft 340. The edge of a document 76 which is nearest to shaft 340 is subsequently engaged by one or more fingers 342 so that, as the discs rotate further, the document slides out of the slot 336 and is added to the stack in output hopper 348.