baber/WOPTO huggingface dataset:
Patent GB-2045450-A (GB)
Title: Line-by-line photocopying
IPC: G03G15/30
Filed: 1980-03-10
Abstract: In a photocopier employing a stationary scanning slit, moving platen 6 and a rotary photoconductive drum 2, the slit is illuminated uniformly in overlapping manner by a light source (3, Figs. 1 and 2) via mirrors 5 and 11 which reflect light from the light source directly and via mirror 9 respectively. Mirror 5 has a plurality of flat surfaces or an elliptical surface, mirror 9 has an elliptical surface, and mirror 11 has a cylindrical or flat surface. Further mirrors 16-18 reflect light from the light source to drum 2 via paths 19-21 (other than via the original). The copier also has compound eye lens system 1 and a heat filter (15). <IMAGE>
Patent GB-2078058-A (GB)
Title: Telephone line loop detector
IPC: H04Q1/50
Filed: 1980-06-13
Abstract: A telephone line loop detector comprises a relay (6) having two windings (11,12) which are connected in series with respective conductors (3,4) of the subscribers line 2. The relay windings are constructed, arranged and connected so that current flowing from the exchange battery via contacts (14,15) produce a cumulative magnetic field to operate the contact 13. Common mode currents, such as those induced in a line by proximity to a.c. power lines, produce cancelling magnetic fields in the windings and thus do not operate the contact (13). The relay (6) may be a reed relay with each winding (11,12) having a resistance of less than 15 OMEGA . The contact (13) may be used to control a multifrequency detector/converter (5) to cause the detector/converter (5) to clear should a subscriber abandon a call before the connection is completed. <IMAGE>
Patent GB-2053095-A (GB)
Title: Card-index register drawer unlocking device
IPC: B42F17/34
Filed: 1980-06-23
Abstract: A card-index register with a card selection device and consisting of a housing having a cover part and a bottom part and a number of keys and a drawer acted upon by a compression spring is provided with a drawer-unlocking device (300) which comprises a plate (150) pivoting in the back portion of the housing (10) around a horizontal axis (153) and having an abutment edge (150b) acted upon by the rear ends of the key levers (60 - 71) and locking cams (156) facing the drawer (30). The cams have a portion (156a) extending at an angle to the bottom part (21) of the housing, towards the rear region of the housing. The portion (156a) co-operates with an engagement recess or abutment cam (157) having a rear sliding edge (157a) at the end region of the bottom (31) of the drawer (30). When the abutment edge (150b) is raised by pivoting the plate (150), the locking cams (156) is raised out of the engagement recesses (157a). <IMAGE>
Patent GB-2055731-A (GB)
Title: Top plate chain
IPC: B65G17/08
Filed: 1980-06-23
Abstract: A top plate chain has a conveying flat plate (11) with a pair of through holes (17) bored in a central portion thereof to fix guide legs therein. An upper end of the leg may be formed into a convex shape; the leg may comprise a convex portion and a pair of support portions of which both ends are bent horizontally; a fixed portion may be extended upwardly and substantially perpendicularly from the support portion; two guide legs may be caulked into a common through hole with the legs placed back to back. The guide legs (2) may be mounted on the plate merely by the steps of inserting and pressing without requiring welding. <IMAGE>
Patent GB-2068221-A (GB)
Title: Hair-roller clip
IPC: A45D2/12
Filed: 1980-07-15
Abstract: A roller clip having three prongs comprises a u-shaped member 4 with a first log 4a terminating in a first longitudinal member 1 and a second leg 4b terminating in a second longitudinal member 2. The first and second longitudinal members are parallel and the first and second legs are interconnected by an interconnecting portion 4c. A third longitudinal member 3 projects from the interconnecting portion and is substantially parallel to the first and second longitudinal members. The third longitudinal member terminates in an upturned end 3a. A handle 5 also projects from the interconnecting portion and is generally located in the plane of the u-shaped member. Preferably, the handle 5 and the third longitudinal member 3 are integral and form an obtuse angle therebetween. The first and second longitudinal members 1, 2 may be flat and a notch for latching is provided between the first leg and the first longitudinal member and between the second leg and the second longitudinal member. <IMAGE>
Patent GB-2059655-A (GB)
Title: Current drive circuit for thermal imaging devices
IPC: G06K15/10
Filed: 1980-09-24
Abstract: Serial print data is converted to parallel data, which is latched and fed to driving means for current driving the stylii in a thermal array. <IMAGE>
Patent GB-2061073-A (GB)
Title: Noise reduction apparatus
IPC: G11B23/00
Filed: 1979-04-02
Abstract: An improved apparatus for reducing noise in a frequency-modulated data stream of the type utilizing a reference stream of predetermined frequency that has been subjected to essentially the same noise. In a preferred embodiment of the apparatus, the data stream is transformed by a first discriminator (52) into a first signal of value proportional to the frequency of the data stream, and the reference stream is transformed by a second discriminator (53) into a second signal that has a value proportional to the product of the reference stream frequency times a feedback value (41). The feedback value is derived from a combination of the first and second signals in a combiner (44). One of the important uses of the apparatus is in connection with frequency modulation tape recording systems.
Patent GB-2063426-A (GB)
Title: Knob Assembly for Sanitary Fittings
IPC: F16K31/60
Filed: 1980-11-04
Abstract: A knob (2) is secured axially and rotationally relative to a stem end (6) of a sanitary fitting (1) by means of a sleeve (3), adapted to engage the stem end (6), via teeth (21) having resilient projections (61), and a cap (4). The knob (2) rests on a tapering surface (22) of the sleeve (3) and is prevented from removal off the stem end (6) by means of the cap (4) which has a shoulder (41) engaging with resilient projections (32) of the sleeve (3). The resilient projections (32) thus serve also to prevent accidental displacement of the cap, which may be colour coded to distinguish between hot and cold water, from the knob (2). <IMAGE>
Patent GB-2067504-A (GB)
Title: Bridging device
IPC: B65G69/28
Filed: 1980-11-19
Abstract: A bridge plate (1) pivotally mounted about a horizontal axis (2) has an extension portion (5) pivotally mounted thereon. A connecting rod arrangement (6, 7) being provided for pivoting the extension portion (5) the rear end of the connecting rod (7) being mounted on a disc (10) which is pivotable about a horizontal axis (8) and there being a flexible tension member (15) for actuating the disc (10) one end of the tension member (15) being anchored and the other end thereof being operationally connected to the disc (10) in such a manner that as the tension member (15) is tightened during the upward pivotal movement of the bridge plate (1) to cause the lever arrangement to effect pivotal movement of the extension portion (5) into its operative position the tension member (15) in its end region adjacent the lever (13) being located on an arcuate guide (14) such that the effective lever arm (b) with which the tension member acts on the disc remains substantially constant over the pivotal path of the disc. <IMAGE>
Patent GB-2067196-A (GB)
Title: Quaternary Hydroxyalkylammonium Hydroxycarboxylate Salts for Use as Antistatic Agents
IPC: C11D1/62
Filed: 1981-01-13
Abstract: An antistatic agent comprising a quaternary ammonium salt represented by the following general formula (1> <IMAGE> wherein R1 is an alkyl or alkenyl group having 8 to 22 carbon atoms, R2 is an alkyl group having 1 to 3 carbon atoms, or hydroxyethyl or hydroxypropyl, R3 is hydroxyethyl or hydroxypropyl, R4 is an alkyl group having 1 to 3 carbon atoms, hydroxyethyl or hydroxypropyl, Y is ethylene or propylene, m is zero or one, and X<(-)> is an anion of a hydroxyalkanecarboxylic acid having 2 to 6 carbon atoms.
Patent GB-2076286-A (GB)
Title: Dermatological hydrogen peroxide compositions
IPC: A61K47/00
Filed: 1981-02-02
Abstract: A dermatological composition in the form of a cream preparation comprises an oil medium dispersed in an aqueous medium, the aqueous medium containing hydrogen peroxide, and being buffered to a pH less than 7, and containing starch which has been gelled in situ.
Patent GB-2093709-A (GB)
Title: Closing balloons
IPC: A63H27/10
Filed: 1981-02-24
Abstract: Automatic apparatus for closing balloons comprises a mouthpiece (2) having a cylindrical receiving housing (4) and a hollow cylinder (5) concentric with the receiving housing, closing means (7) closing the hollow cylinder (5, 23) and squeezing hooking and securing means (11) for the balloon between this closing means (7) and the hollow cylinder (5). The invention finds its main application in the toy industry. <IMAGE>
Patent GB-2075777-A (GB)
Title: Electric blanket safety circuit
IPC: H05B3/56
Filed: 1981-03-31
Abstract: In an electric blanket whose flexible heating wire 12 comprises a heating material 14 with a positive coefficient of resistance disposed between two conductors 16, 18, a safety circuit is connected to the conductors to blow a fuse 26 in the event of an open circuit condition in either of the conductors 16, 18. The safety circuit has sensing means 28, 30 connected across each of the two conductors to sense an increase in voltage due to an open circuit in either conductor. In response to such a voltage increase a low resistance circuit path 44 is provided causing a current surge which disconnects the heating wire 12 from its power supply by blowing the fuse 26. The sensing means may comprise neons 28, 30 controlling a light-responsive device 32; a voltage- responsive relay; a pair of three- element gas switches; or a thermal fuse arrangement. <IMAGE>
Patent GB-2080148-A (GB)
Title: Flame-retardant, flexible and semi-flexible open-celled foams
IPC: C08J9/42
Filed: 1981-06-03
Abstract: Already-produced flexible or semi-flexible open-celled foams are treated with a dispersion comprising a finely-divided vinyl halide polymer (e.g. PVC) and antimony (III) oxide. The vinyl halide polymer may have a particle size of from 10<-2> to 250 microns and the ratio of polymer to antimony (III) oxide in the dispersion may be in the range 1:1 to 10:1 (e.g. 3:1 to 6:1). Foams treated in accordance with the present invention are rendered flame- retardant with respect to the D.o.E. "Double Crib" and/or B.S. 5852 "Cigarette" tests.
Patent GB-2105220-A (GB)
Title: A steam straightener for a nozzle
Inventor: KNIGHT NOEL EDWARD
IPC: B05B1/28
Filed: 1981-09-07
Abstract: A stream straightener for a nozzle comprising a plurality of adjacent sections designed to be housed inside a pipe adjacent to the nozzle, each section comprising four vanes (1, 2, 3, 4, 5, 6, 7, 8) radiating outward from a longitudinal axis of the section wherein the vanes of adjacent sections are offset with respect to each other (e.g. at 45 DEG ) and the vanes taper toward the longitudinal axis before meeting the vanes of an adjacent section. Preferably one of the sections includes a peripheral band (9). <IMAGE>
Patent GB-2084758-A (GB)
Title: Optical slit apparatus
IPC: G01J3/04
Filed: 1981-10-05
Abstract: A pair of adjacent relatively slidable members 12, 14 are formed with pairs of slits 28, 30 and 30, 34 respectively. The width of the effective slits through the pair of members depends on the degree of overlap between corresponding slits, this being controlled by relative sliding of the members 12, 14 under the control of a rotary shaft 58 carrying a contact bar 56 which engages protrusions 48 and 50 on the respective members, which are biased into contact with it by a spring 26. The shaft 58 is driven by a stepper motor through a drive arm. <IMAGE>
Patent GB-2108037-A (GB)
Title: Shaping aminoplasts using a hot wire
Inventor: OGDEN DENNIS HENRY
IPC: B26D1/00
Filed: 1981-10-15
Abstract: Shaped articles are made from urea/formaldehyde resin foam by hot wire cutting.
Patent GB-2086654-A (GB)
Title: Programmable cells and arrays
IPC: H01L27/112
Filed: 1981-10-26
Abstract: An improved programmable cell for use in programmable electronic arrays such as PROM devices, logic arrays, gate arrays and die interconnect arrays. The cells have a highly non-conductive state settable and non-resettable into a highly conductive state. The cells have a resistance of 10,000 ohms or more in the non-conductive state which are settable into the conductive state by a threshold voltage of 10 volts or less, a current of 25 milliamps or less, for 100 microseconds or less. The cells in the conductive state have a resistance of 100 ohms or less. The cells have a maximum permittable processing temperature of 400 DEG  centigrade or more and a storage temperature of 175 DEG  centigrade or more. The cells are formed from doped silicon alloys including at least hydrogen and/or fluorine and contain from about 0.1 to 5 percent dopant. The cells can be plasma deposited from silane or silicon tetrafluoride and hydrogen with 20 to 150,000 ppm of dopant. Each cell in an array is a thin film deposited cell and includes an isolating device which can be a bipolar or MOS device or can be a thin film diode or transistor. The associated addressing circuitry also can be conventional bipolar or MOS devices or thin film deposited devices. The cells have a cell area of less than one square mil to provide a high cell packing density.
Patent GB-2108026-A (GB)
Title: Manufacturing a rack member
Inventor: ROGERS PETER ROWLAND
IPC: B21J5/02
Filed: 1981-10-29
Abstract: A rack member 14c is manufactured by pressing a longitudinally extending workpiece of circular or other section between die parts 8 and 9. Die part 8 has a longitudinal recess 13 within which the workpiece is partly received to oppose an array of rack teeth 15 in a wall of the die part 9. The teeth 15 are complementary to those which are to be pressed in the workpiece. Opening into the face 11 of the die part 9 along the parting plane 12 of the die parts is a pair of longitudinally extending and opposed rebates 16 which form relief cavities 27 opening from the die cavity 25 through relief outlets 26. During pressing of the workpiece surplus material from the workpiece is displaced uninhibited from the die cavity 25 into the relief cavities 27 to relieve stress in the workpiece and alleviate the formation of malformed teeth on the pressing. The displaced material can be removed at an intermediate stage of pressing to alleviate the requirement of a high closing pressure on the die parts. <IMAGE>
Patent GB-2110935-A (GB)
Title: External noninvasive electric cardiac stimulation
Inventor: BELGARD ALAN HENRY
IPC: A61N1/04
Filed: 1981-11-23
Abstract: Pain caused by external noninvasive electric cardiac stimulation may be reduced through the use of electrodes 10, 20 with large-surface, non-metallic, high-impedance skin-contacting members 12, and also through the use of a pulse generator 22 for the electrodes that provides substantially constant current without spikes throughout a prolonged pulse of greater than 5 milliseconds duration. Each electrode may have an impedance of greater than 1000 ohms and may comprise a stainless steel disc 14 with its rear face and edge covered by silicone rubber 18 and its skin-facing surface covered with cellulose sponge or gauze 12 to which in use water, a weak electrolyte, or a gel is applied. The pulse generator 22 may be triggered in synchronous or asynchronous mode and has a monostable 30 to determine the stimulation pulse width which may be fixed at 40 msec, or adjustable from 20 to 40 msec. The pulse is passed to electrodes 10, 20 via a 10 to 1 step-up transformer 36, being first converted to a 2 KHz squarewave by an oscillator 32 and then rectified and filtered 38 after passing through the transformer 36. The filter (64, Fig. 3, not shown) produces a smooth pulse of substantially constant current amplitude and includes an inductor (66) which eliminates initial transient current spikes caused by capacitance of electrodes 10, 20. <IMAGE>
Patent GB-2091992-A (GB)
Title: Cleaning apparatus
IPC: A47L11/30
Filed: 1982-01-26
Abstract: Cleaning apparatus comprises one or more spray units 18 for spraying cleaning materials, such as water, steam or abrasive fines onto a surface to be cleaned and means for removing used cleaning materials such as a suction nozzle formed in skirt 19. <IMAGE>
Patent GB-2119103-A (GB)
Title: Measuring torque
Inventor: LEUNG WAI SUN
IPC: G01L5/00
Filed: 1982-04-13
Abstract: In measuring the torque of a ceiling fan a transducer for sensing the torque is located between the ceiling A and the ceiling fan D above or below the down-rod B. Both transient and steady- state torques of the fan transmitted to the ceiling is sensed by the transducer and the signal is fed via a bridge and amplifier(s) to analogue and digital voltmeters which are calibrated to measure the torque directly. <IMAGE>
Patent GB-2110093-A (GB)
Title: Extracoronal dental splint
Inventor: GARITO JON C
IPC: A61C7/00
Filed: 1982-07-12
Abstract: An extracoronal dental splint and procedure comprises a thin, flat slightly malleable perforated strip or mesh which is adhered to the patient's inner dental arch and then covered with a thin layer of resin or composite material, which, when hardened firmly bonds the strip to the patient's teeth stabilising any mobile teeth. <IMAGE>
Patent GB-2103769-A (GB)
Title: A wear reducing projectile
Inventor: FULLER PETER WILLIAM WATERS
IPC: F42B5/24
Filed: 1982-08-13
Abstract: A projectile suitable for firing from a gun barrel contains an additive which is dispensed along the gun barrel by the pressure of a gas propellant so as to reduce barrel wear. A charge of additive (11) is stored within a cylindrical recess in the rear face (12) of the projectile. In use, the pressure of the gas propellant acts on a nylon piston (6) slidably located within the tube (2), which piston in turn pressurizes the charge (11) forcing it forward through the four extrusion ports (9) to the exterior of the projectile. The charge of additive (11) is preferably a mixture of a thermal insulator and a lubricant, best characterised by silicone oil or a paste mixture of titanium dioxide and silicone grease. The invention is particularly applicable to small arms bullets for firing from a rifled gun barrel, and may be incorporated in existing hollowed bullets, for example tracer bullets. Figs. 2, 3 and 4 (not shown) disclose alternative methods of discharging the additive. <IMAGE>
Patent GB-2122604-A (GB)
Title: Substituted thiazolidinyl esters of mineral acids
Inventor: STORNI ANGELO
IPC: A61K31/425
Filed: 1982-10-14
Abstract: Compounds of the formula    <IMAGE>  (I)  in which one of the symbols R1 and R2 represents an alkyl radical that has 3 or 4 carbon atoms and is unsaturated in the 2,3-position, and the other represents such a radical or lower alkyl, R3 and R4 each represents, independently of the other, hydrogen or methyl, and A represents a radical of the formula   <IMAGE>  in which Z1, or each of Z2 and Z3 independently of the other, represents hydrogen or lower alkyl, or Z2 and Z3 together represent lower alkylene, and salts of such compounds in which Z1, or Z3 and optionally also Z2, represent(s) hydrogen, exhibit tumor-inhibiting activities.
Patent GB-2128935-A (GB)
Title: Ink jet printer
Inventor: KOCKLER BARRY CURTIS
IPC: B41J2/185
Filed: 1982-10-21
Abstract: An ink jet printer includes a catcher (62) having a catcher plate (64) along the lower portion thereof which is pivotally mounted for rotation about an axis parallel to a row of jet drop streams (12) produced by the ink jet printer print head (10). A charge electrode plate (44), defining a plurality of notched charge electrodes (45), is movable between a drop charging position and a remote position. At start up and shut down of the printer, the charge electrode plate (44) is maintained in its drop charging position when a deflection field is produced by a deflection electrode (50), so as to shield the drops from the deflection field. The catcher (62) is pivoted into a full catch position at start up and shut down so as to catch substantially all of the drops produced by the relatively unstable jet drop streams. <IMAGE>
Patent GB-2129743-A (GB)
Title: Flexible wheelbarrow extension
Inventor: SIMS WILLIAMS CHRISTOPHER TEMP
IPC: B62B1/20
Filed: 1982-11-10
Abstract: A foldable frame 2 supports a flexible bag 3 and the assembly may sit on feet 7 inside the wheelbarrow pan to provide increased load accommodation. Holes 11 and 16 in the tubes forming the frame permit size adjustment by means of bolt 6 and rod 15. The bag itself may be adjustable in size by means of pleats, press studs (not shown). <IMAGE>
Patent GB-2130905-A (GB)
Title: An appliance for aerating beverages
Inventor: CHARLES BARRY GRAHAM
IPC: B01F3/04
Filed: 1982-11-16
Abstract: The appliance comprises a grip handle (1) integrally formed with an aeration head (2), which supports a gas valve assembly (3), into which a container (4) of pressurised carbon dioxide is inserted, and a gas nozzle (6). A manually-operable carbonating button (7) actuates the valve assembly (3), thereby releasing carbon dioxide from container (4), through gas nozzle (6), to aerate a liquid (15) in a bottle (14). A trigger mechanism is resiliently connected to grip handle (1) by a spring (11), so that by squeezing and releasing trigger (9), the bottle (14) can be clamped to a stopper (8) by hook part (10). <IMAGE>
Patent GB-2112410-A (GB)
Title: Hydroxyethyl cellulose composition for viscosifying brines
Inventor: HOOVER LONNIE DANIEL
IPC: C09K8/10
Filed: 1982-11-17
Abstract: An effective viscosifying composition for brines, especially heavy brines having a density greater than 1.618 g/ml comprises from 10 to 25% by weight of hydroxyethyl cellulose in a polar organic liquid, e.g. an aliphatic glycol, triol or amide, which liquid when uniformly mixed with hydroxyethyl cellulose in a weight ratio of hydroxyethyl cellulose to polar organic liquid of 1:2, produces a mixture with substantially no free liquid present after remaining quiescent for one week at ambient temperature in a sealed container, said composition having been aged for a period of time sufficient to activate the hydroxyethyl cellulose.
Patent GB-2114171-A (GB)
Title: Method and apparatus for manufacturing a carpet, rug or fabric
Inventor: O'NUALLAIN MICEAL
IPC: D04H11/00
Filed: 1983-01-24
Abstract: A pile fabric is made by placing a tape 20 on a former 6, applying adhesive 21 to the tape 20, winding yarn 22 around the former 6, applying adhesive 25 to the yarn 22 adjacent the tape 20, pressing the former 6 onto a backing, cutting the yarn 22 to provide tufts 30 and removing the former. Face-to-face fabrics may be made by providing two backings and cutting the yarns at the sides of the former. Apparatus for winding the yarns on the formers is described and the specification states the yarns may be stitched to the backing. <IMAGE>
Patent GB-2116746-A (GB)
Title: An improved flexible stranded body
Inventor: GAYLARD B
IPC: G02B6/44
Filed: 1983-03-18
Abstract: To reduce the risk of damage to an optical fibre of an overhead electric conductor having an elongate compartment 4 in which an optical fibre 5 is loosely housed arising from heat generated as a result of a fault or lightning, the circumferentially continuous metal wall 2 of the elongate compartment has a circumferentially continuous layer 3 of thermally insulating material bonded or otherwise adhering to it. Preferably, the thermally insulating material 3 is a plastics material of cellular form which will withstand, and thereby protect optical fibres from the effect of, the temperature to which they could be subjected under full clearance overload conditions. <IMAGE>