baber/WOPTO huggingface dataset:
Patent GB-1354930-A (GB)
Title: Motor driving circuitry
IPC: H02P8/00
Filed: 1971-12-29
Abstract: 1354930 Circuits for self-controlled motors FUJITSU Ltd 29 Dec 1971 [28 Dec 1970] 60542/71 Heading H2J To prevent reduction of torque with increase of speed in a motor 10 whose stator windings A ... E are successively energized in cyclical sequence by signals from a rotor position sensing means 11, the members 13, 14 for switching the windings are controlled by a speed-responsive circuit 12, 16, 17 which shifts the phase of the successive energization, relative to the position of the rotor, when the latter attains successive pre-selected speeds. Rotor position and speed signals are obtained from sensers 11, 12 taking the form of photo-detectors associated with two sets of radially-spaced slits in a disc connected to the rotor shaft, Fig. 3 (not shown). The output of the position photo-detector is applied, via an amplifier (not shown), to a switching circuit 13 which generates five pulse trains L 1  ... L 5 , Fig. 4 (not shown), for application to sets of gates G 0 , G 1 , G 2 , G 3 , each set being associated with a respective winding A ... E. The rotor position control is such that initially the rotor and excitation phase differ by one phase unit (the angle between adjacent ones of the windings A ... E), the pulse trains L 1  ... L 5  being sequentially applied to the gates G 0 -G 3  in such manner to produce this effect. The signal from senser 12 is a pulse train of variable spacing according to the speed and is applied to a timer circuit 16 comprising three monostable multivibrators, each producing a respective pulse train of constant but different width, Fig. 5 (not shown). It is explained, Fig. 1 (not shown), that the time lag in the passage of signals from the rotor position senser to the windings causes the phase difference between the excitation and rotor phase to decrease with increase of speed, so reducing the torque. Accordingly the widths of the multivibrator pulse trains are chosen to respectively correspond to the three speeds at which the time lag reduces the phase difference by respectively one, two and three phase units. A signal generating circuit 17 compares the pulse train from senser 12 with those from the multi-vibrators and produces signals SP 1 , SP 2 , SP 3  when the three speeds are reached, the intervals between successive pulses on the senser train being compared with the widths of the multivibrator trains for this purpose. As the signals SP 1 , SP 2 , SP 3  are applied to the gates G 0  ... G 3 , all five sets of which comprise the switching circuit 14, the gates of each set are successively opened by the signals to change the pulse train L 1  ... L 5  applied to the winding and so vary the phase difference from the one unit advance provided by gate Go to two, three and four units respectively provided by the gates G 1 , G 2 , G 3 .
Patent GB-1241856-A (GB)
Title: Process for shaping polybutene-1
IPC: C08L23/20
Filed: 1968-12-20
Abstract: 1,241,856. Moulding polybutene-1. CHEMISCHE WERKE HULS A.G. 20 Dec., 1968 [22 Dec., 1967], No. 60673/68. Heading B5A. [Also in Division B8] Dimensionally stable articles of polybutene-1 are produced by solidifying the melt into a preform, shaping within 30 minutes of cooling into this shape below the melting point of the polybutene-1 and then supporting for ¢-12 hours so that further deformation by gravity or any other external force is prevented. The polybutene is preferably isotactic and is preferably cold-shaped at 20-40 C. and within 5 minutes of solidification. In an example, a sheet is drawn into the shape of a ship's hull.
Patent GB-1248478-A (GB)
Title: Improvements in or relating to continuous fermentation method and device
Inventor: LEFRANCOIS LOUIS ALFRED AUGUST
IPC: C12M1/08
Filed: 1968-12-30
Abstract: 1,248,478. Agitating aerating liquids. L.A.A. LEFRANCOIS. 30 Dec., 1968 [29 Dec., 1967], No. 61632/68. Heading B1C. [Also in Division C6] The propagation of micro-organisms is conducted in an apparatus consisting essentially of two chambers a and b 1  Figs. 2 to 5, through which the culture liquid is continuously circulated in the indicated directions by the injection of gas through line 1, of sufficient intensity to impart to the ascending liquid a velocity of between 0.5 to 2 metres/sec, assisted by a helix 5. Culture liquid is admitted through line 2 and withdrawn from line 3, and the temperature of the circulating body of liquid is maintained by a heat exchanger 4. Privileged flow in the descending liquid in chamber b may be prevented by providing a closed cylinder 10, Fig. 2, positioned as shown, or a countercurrent of gas within an open cylinder 10, Fig. 4. Several chambers a may be used in conjunction with a single chamber b. The ratio of the cross-sectional area(s) of the chamber(s) a to that of the chamber b should lie between 0.05 to 0.8. In the case of anaerobic fermentation, a portion of the gas generated by the fermentation process may be collected at the top of the chambers and recompressed for subsequent recycling.
Patent GB-1330014-A (GB)
Title: Fried potatoe chips dispensing apparatus
IPC: A47J37/12
Filed: 1970-12-30
Abstract: 1330014 Potato chips dispensing machine KOELINSTALLATIES VAN CLEVEN GEBROEDERS 30 Dec 1970 [29 Oct 1970] 61794/70 Headings A4D and D7 Fried potato chips dispensing apparatus, which may be coin controlled has a housing I with a top compartment 2, Fig. 1, containing a perforated drum 4 rotatable by motor 8 into which chips, possibly partly fried, are placed via door 5, the compartment being cooled and/or ventilated at opening 14, 15. The drum is provided internally and externally with scoops 24, Fig. 3 provided with sprung doors 19 which during a rotation of the drum, engage projection 22 to open and discharge a quantity of chips into a weighing receptacle 29 hinged at 30 which then closes switch 39 which starts a motor 51 in lower compartment 3 insulated at 25 from compartment 2, drives cams 50, 62 and releases a dish 67 from a stick 70 to fall into a vend opening 74. Cam 50 via linkage 40-49 opens hinged trap 27 through which receptacle 29 tips the chips into a basket 53 raised by cam 62 via linkage 54-61. Cam 62 then lowers basket 53 into the frying fat container 52 for a time determined by a timer after which cam 62 raises the basket, drains the fat through slots 64 back into the container and tips the chips into a funnel 76 guiding them on to dish 67, finger 65 opening valve 82 allowing salt from receptacle 80 to sprinkle on the chips via chute 88, although receptacle 80 with valve 82 can be rotated out of the way of lever 65 by an external knob at the choice of the user. An auger may be used in place of scoops 24.
Patent GB-1278190-A (GB)
Title: Cargo container
Inventor: RUSSEL-FRENCH HARRY MORRIS
IPC: B65D6/18
Filed: 1970-12-30
Abstract: 1278190 Knock down cargo containers BOOTHE AIRSIDE SERVICES Inc 30 Dec 1970 [30 Dec 1969] 61874/70 Heading B8P A knock-down cargo container comprises a top panel 13, a bottom panel 10, two side door panels 14, 15, hingedly connected to fold to a stored position on top of the top panel 13, and two side panels 11, 12, hingedly connected to projection elements 20, 21 on the top panel 13 so that panel 12 overlies panel 11 in the stored position. The panels 11, 12 carry clamping bolts (34) at their lower ends for engagement with female fastening elements (31) on the bottom panel. The side panels 14, 15 carry shear pins (40) at their lower edges which enter holes in an edge strip (39) on the bottom panel. The side panel 12 comprises two hingedly connected parts 12a, 12c arranged so that the container conforms to the shape of an aircraft cargo space. A shear panel 16 is attached by shear pins (46) to a tile strip (47) on the top panel 13 and is attached by clamping bolts to ribs (48) on the side panel 12. Shelves 17 are supported by ledges (50) pivoted to the side panels 11, 12 and supported by tab-shaped projections (52) which engage stop elements (53) in the corrugations of the side panels. In a modification, the shelves 17 have fixed end projections (50<SP>1</SP>) which enter corrugations in the side panels to rest on ledges (53<SP>1</SP>) therein. Shelves 17 are stored between the panels 11 and 13 in the collapsed position. Sealing strips 38 (42) are provided on the bottom panel, on the hinges of the door panels 14, 15 and between the side panels. Latches (43) are provided to connect the side panels. The container is mainly formed of corrugated aluminium sheet material, the bottom panel being of balsa wood laminated with aluminium.
Patent GB-2005685-A (GB)
Title: Epoxy resin-polyamide mixtures
IPC: C09D11/10
Filed: 1978-07-26
Abstract: The invention is concerned with synthetic resin mixtures comprising     (A) an adduct of an excess of a solid polyaminoamide and an epoxy resin, and (B) an adduct of an excess of an epoxy resin and a solid polyaminoamide, the polyaminoamides in components (A) and (B) having an amine number of 30 to 200 and being obtained from dicarboxylic acids having 6 to 13 carbon atoms, optionally in admixture with other carboxylic acids, and certain cycloaliphatic diamines, optionally in admixture with other amines. The synthetic resin mixtures are used as binding agents for surface coatings and printing colours for both rapidly operating rotary printing machines and slowly operating printing processes. They are soluble in alcohol/ethyl acetate mixtures free from aromatic substances and are therefore environmentally tolerable, are suitable for sensitive printing processes, and immediately after evaporation of solvent they are surface dry so that they can be printed from roll to roll without difficulty.
Patent GB-2002847-A (GB)
Title: Hand operated piston pump
IPC: F04B9/14
Filed: 1978-08-02
Abstract: In a hand-operated container- mounted piston pump, e.g. for cosmetics, the piston 5 and cylinder 8 have cooperating ports 16, 18, A, E to function as a slide valve controlling intake and delivery of liquid and air, there being no communication between the pump inlet and outlet in the rest position of the pump. The piston may be reciprocable and the cylinder fixed, or vice versa. Actuation may be by press button or trigger. <IMAGE>
Patent GB-2004687-A (GB)
Title: Improvements in or relating to semiconductor matrices for integrated read-only memories
IPC: G11C17/08
Filed: 1978-08-16
Abstract: A ROM-matrix comprises components each provided with a semiconductor region of first type conductivity, at least some of the components each having in a subsurface layer of the first type conductivity region a region of second type conductivity. The components are formed at locations where semiconductor buses 4 of first type conductivity in a semiconductor substrate 1 crossover metallic buses 7 disposed on a dielectric layer 8 arranged to isolate the semiconductor buses from the metallic buses. Windows in the dielectric layer above some of the components and above the second type conductivity region provide contact between the latter and the metallic buses. Each of the semiconductor buses has an additional layer 6 disposed between the substrate and the subsurface layer and having the conductivity type of the subsurface layer, the conductivity of the additional layer exceeding that of the subsurface layer and being determined by the solubility limit of the doping impurity dissolved in the semiconductor bus. The memory may be used in accounting, controlling computers, data acquisition and processing systems, and in test and control apparatus. <IMAGE>
Patent GB-2028636-A (GB)
Title: Bracket
IPC: A47B57/04
Filed: 1978-08-21
Abstract: The proximal end portion of a bracket is provided with at least one hook portion adapted to pass through a co-operating aperture of a support and to bear against a rear surface thereof in use, and also has a forwardly extending portion articulated with respect to the proximal end portion about an axis which is horizontal in use of the bracket, such that the angle made between the two said portions of the bracket may be varied, means (e.g. a pin and notch) being provided for selectively setting the angle of articulation. A gaite may cover the hinge. <IMAGE>
Patent GB-2009704-A (GB)
Title: Container with lid
IPC: B65D41/02
Filed: 1978-11-14
Abstract: A container and lid combination in which the lid is removable from the container to open the container and it is replaceable to close the container. The container has a body with a mouth including a strip of annular extent secured to the lid. The body has an annular weakening notch in the vicinity of the strip and the container is separable at the notch to separate a part of the container mouth and the lid together with the strip from the body of the container. The notch is positioned radially inwards of the strip and upon rupture of the notch separate parts are formed which can be reengaged upon replacement of the lid on the container. Locating surfaces are provided on the lid and container for establishing a determined oriented position of replacement of the lid on the body of the container.
Patent GB-2009975-A (GB)
Title: Alarm electronic timepieces
IPC: G04C21/02
Filed: 1978-11-29
Abstract: An alarm electronic timepiece comprises an oscillating circuit for generating a high frequency reference signal which is frequency divided by a frequency dividing circuit into a lower frequency time signal. A display device displays information indicative of the present time in accordance with the time signal. An alarm counter is preset with the desired alarm time and a coincidence detecting circuit detects coincidence between the present time and the preset alarm time and accordingly provides an output signal which is fed to a buzzer for generating an alarm sound. Circuitry is provided for sounding the alarm in advance of the preset alarm time and at a low sound volume which gradually increases with the passage of time, such circuitry including a subtraction circuit connected between the alarm counter and the coincidence detecting circuit, a ring counter connected to receive the output signal from the coincidence detecting circuit, and a modulation circuit connected to the ring counter for modulating the signal applied to the buzzer.
Patent GB-2039649-A (GB)
Title: End fitting assembly for a conduit
IPC: F16L33/22
Filed: 1979-01-11
Abstract: An end fitting assembly for a conduit (10) having an internal screen (11), comprises a nipple (15) adapted to be inserted in at least an end portion (12) of the conduit (10) and a sleeve (23) adapted to co-operate with the nipple (15) about which the screen (11) can be folded, the arrangement being such that the folded portion of the screen (11) is clamped between the sleeve (23) and an adjacent co-operation portion of the nipple (15).
Patent GB-2012384-A (GB)
Title: Heat-Recoverable Metallic Coupling Members
IPC: F16L13/00
Filed: 1979-01-15
Abstract: A coupling member comprises a tubular memory metal member which is heat-shrinkable or can be rendered heat-shrinkable in the radial direction, and which is provided on its inner surface with at least three teeth in the form of radially extending rings, the distance (t) between any pair of adjacent teeth being less than 0.95 d and less than 4 w, where d is the internal diameter of the tubular member, and w is the wall thickness of the tubular member, there being at least one tooth either side of the tooth nearest the center of the tubular member the distance from the center of the member to the tooth nearest the center of the member being from 0 to 0.3 d and the distance between the two teeth adjacent the tooth nearest the center of the member being more than the smaller of 0.4 d and 3 w. Such a coupling member can be expanded by mandrel expansion methods without danger of damaging the teeth. <IMAGE>
Patent GB-2019541-A (GB)
Title: Drying and Burning Waste Sludge
IPC: C02F11/13
Filed: 1979-04-06
Abstract: A process and system to dry wet sewage sludge with hot sand and to burn the dried sludge. The sand is heated in a heating device (22) by burning dried sludge at 24, and the hot sand is mixed with wet sludge in a drying device (26). Thereby moisture is driven from the wet sludge to dry it. The dried sludge and sand are separated at 30, and the sand returned to the heating device (22) while the dried sludge is burned at 24 to heat the sand. The wet gases from the drying device (26) are passed through a condenser (38) to the burning zone (24). After heating the sand the waste gases pass through cleaning devices to a stack. <IMAGE>
Patent GB-2021484-A (GB)
Title: Coding apparatus on a bag- closing sewing machine
IPC: B31B50/88
Filed: 1979-05-03
Abstract: A coding apparatus 10 combined with a portable bag-closing sewing machine 12 to print a message on a bag 150 utilizes a mounting bracket 14 fixed to the machine and a carriage 16 pivotally mounted to the mounting bracket for movement between first and second positions, carriage spring means being provided to bias the in carriage toward first position. The carriage supports a rotatably mounted type carrying, printing wheel. When an oversized, thicker than normal bag passes through the machine and coding apparatus, the carriage swings from first to second position, providing clearance for the thicker bag while permitting clear, legible printing of the message on the bag. The printing wheel is also slidably mounted on the axle to permit shifting movement of the wheel along the axle. The printing wheel has an inner disc sandwiched between a pair of outer discs providing an improved type retaining apparatus which is spring loaded to selectively separate to facilitate type insertion or removal. <IMAGE>
Patent GB-2026468-A (GB)
Title: Glass batch components
IPC: C03C1/02
Filed: 1979-05-15
Abstract: B2O3-containing, glass forming pellets are set forth which include ulexite (sodium calcium borate) as a source of B2O3. Those pellets are superior to pellets wherein the source of B2O3 is a borax for purposes of economic glass manufacturing.
Patent GB-2038887-A (GB)
Title: Flat Bed Knitting Machine
IPC: D04B15/36
Filed: 1979-10-01
Abstract: In a flat bed knitting machine, needles are selected for tucking in either direction of traverse by jacks selected by an actuator bank, preferably electronically controlled, located below a clearing cam. The jacks may themselves carry-pattern butts as means are provided in a preferred embodiment to place all jacks in the same pre-selection attitude. The jacks may operate the needles directly without intermediate jacks. The cam carriage may have transfer stations at each end for leading and trailing transfer. <IMAGE>
Patent GB-2036688-A (GB)
Title: Load handling pallets
IPC: B65D19/12
Filed: 1979-10-19
Abstract: The invention concerns a knock- down pallet suitable for conveying tubes. The pallet has two opposed rectangular end frames (1,2) which are connected together by two opposed side frames (3,4) to form an open box-like structure. Each side frame is provided with an outwardly opening channel-shaped socket (15) which fits about a side member (7,8) of an adjacent end frame (1,2). A spigot (16) on each side member engages with a complementary slot (17) formed in the side of the socket portion (15) so as to detachably secure the side frames (3,4) to the end frames (1,2). <IMAGE>
Patent GB-2040763-A (GB)
Title: Tube straightening by rolls
IPC: B21D3/04
Filed: 1980-03-23
Abstract: Apparatus for straightening tubes comprises three pairs of rolls, of which the central pair has one convex roll (5) and one concave roll (4) while the outer pairs have only concave rolls (2,3). The bulge length of the convex roll (5) and the concave roll (4) is greater than that of the rolls of the outer pairs. <IMAGE>
Patent GB-2043097-A (GB)
Title: Liquid crystal compositions containing pleochroic dye
IPC: C09B1/06
Filed: 1980-02-22
Abstract: Liquid crystal compositions having positive dielectric anisotropy comprise at least one nematic liquid crystal material having positive dielectric anisotropy and are characterized by containing a pleochroic dye of the general formula:   <IMAGE>  wherein a is 1 or 0; provided that when a = 1,    n = 0    m is an integer from 1 to 4,    R represents -CH3, -OCH3 or -H, and    Y represents, independently,    -NH2, -NO2, -OH, -Cl or -F,  and when a = 0,    Y represents, independently,  -NH2, -NO2 or -OH;    Q is independently,   <IMAGE> or   <IMAGE>   and is present only in one or   more of positions 1, 4, 5 and   8; R' and R'' independently represent hydrogen or a nonionic substituent;  m is 0, 1 or 2;  n is an integer from 1 to 4; and  m + n is 4 or less;  provided, that when Q is   <IMAGE> then n = 2, m = 0, and S-Q is present only in positions 1 and 4, 1 and 5, 1 and 8, 4 and 5 or 5 and 8. The compositions are used in electro-optical devices, e.g. displays.
Patent GB-2047616-A (GB)
Title: Extruded plastics bags
IPC: B65D30/08
Filed: 1980-03-19
Abstract: In a method of manufacturing a bag, a high-density polyolefin, preferably high-density polyethylene, is co-extruded with a low-density polyolefin, preferably a low-density polyethylene, to give a tubular film in which the high density polyolefin constitutes the inner layer, the tubular film being welded and cut to give a series of bags. The bag is coloured, curls outwardly at the edges of the mouth, and may have a handle.
Patent GB-2047639-A (GB)
Title: A pneumatic tire having a lubricant- containing pocket integrally formed therein
IPC: B60C17/10
Filed: 1980-04-02
Abstract: A seal for a lubricant-containing pocket on the inner side wall 8 of a pneumatic tire allows injection of the lubricant into the pocket without the need for subsequent sealing. The seal comprises a rubber O ring 10 embedded in the wall 8 and encircling a conventional tire puncture sealant 12. The lubricant is injected through a syringe needle 14 which pierces the seal, the wall 8 wiping the needle on its withdrawal and the sealant sealing the insertion hole and thereby allowing quick and easy injection of the lubricant without subsequent leakage. <IMAGE>