baber/WOPTO huggingface dataset:
Patent GB-2001832-A (GB)
Title: A reversible plough
IPC: A01B3/30
Filed: 1978-06-22
Abstract: A reversible semi-mounted or trailed plough comprises a plough frame 8 rotatably mounted on a supporting shaft 7 which is connected by a pin 6 to an intermediate piece 4 so as to be pivotable in the horizontal plane, the intermediate piece being connected by a pin 3 to the coupling frame 1 so as to be also pivotable in the horizontal plane. The angle between the supporting shaft 7 and the coupling frame 1 is changed by means of a hydraulic ram 14 or other device, causing the plough frame 8 to be rotated through the desired 180 DEG by means of an interposed swivel gearing 5, 10. The invention provides a push and pull member 17 mounted on the coupling frame 1 by means of pins 18, or guided by a rod, so as to be swingable in the vertical longitudinal plane, and connected by a pin 19 to the plough frame 8, the horizontal lateral pivoting of the intermediate piece 4 being made possible by the provision for a change in the effective length of the push and pull member 17 or the intermediate piece 4 or the plough frame 8. The push and pull member 17 may also be a hydraulic piston/cylinder unit which eliminates the ram 14 and the slot 4b in the intermediate piece 4. Alternatively, a rigid member 17 is coupled by means of a slot or a ram with the plough frame 8, or can slide through a fore carriage if provided. <IMAGE>
Patent GB-2029272-A (GB)
Title: Apparatus for the separation of trash
IPC: B03B5/42
Filed: 1978-09-12
Abstract: An apparatus for separating trash from less heavy firm articles, e.g root crop, in a flow of liquid comprises a revolving screen 2 located in a trough 1 and provided with trash moving helical ribbons 6. A contrivance 7 for the separation, feeding and discharging of trash is attached to the screen 2 at that end thereof where the flow of liquid carrying the uncleaned articles enters the screen. The contrivance 7 comprises two coaxial cylinders 9, 10. The outer cylinder 9 is provided with inlet ports 14 for liquid and smaller particles of trash which have passed through the screen 2. Ports 15 provided in the inner cylinder 10 serve to admit the larger particles of trash and discharge all the trash separated. Longitudinal partitions 18 subdivide the space between the cylinders 9 and 10 into transverse passages 19 each of which opens at its opposite ends into corresponding ports 14 and 15 of the outer and inner cylinders 9 and 10 respectively. At least one additional cylinder 16 is disposed coaxially between the cylinders 9 and 10 and is provided with ports 17 next to the partitions 18. <IMAGE>
Patent GB-2006607-A (GB)
Title: Cigarette case-lighter combination
IPC: A24F15/18
Filed: 1978-09-21
Abstract: An accessory for smokers comprising first means for receiving a cigarette packet coupled to second means for receiving or containing a lighter. This may be achieved, for example, by a casing (10) divided into two compartments (11) and (12) for receiving the cigarette packet and the lighter respectively. In an alternative form, magnetic coupling between the packet and lighter may be used. <IMAGE>
Patent GB-2006758-A (GB)
Title: 7-Aza-benzimidazoles with basic side chains
IPC: C07D213/74
Filed: 1978-09-25
Abstract: 7-aza-benzimidazoles of the formula   <IMAGE> [where R1 and R2 each represent hydrogen, C1-C6-alkyl or C2-C6- alkanol or -NR1R2 is a 5 to 7 membered saturated heterocyclic ring having either one nitrogen atom, one nitrogen atom and one oxygen atom or two nitrogen atoms, R3 is hydroxy, an amino group, a mono C1-C6- alkylamino group, a di-C1-C6- alkylamino group, or a C2-C6- alkanoylamino group, R4 is halogen, amino, mono C1-C6-alkylamino, di- C1-C6-alkylamino, mercapto, C1-C6-alkylmercapto, hydroxy or C1-C6-aloxy, R5 is hydrogen or halogen and A is a C2-C6-alkylene group] and their salts are useful in treating ulcers and gastritis. The compounds can be prepared by cyclising an appropriately substituted pyridine-2,3-diamine and, if desired, modifying one or more of the substituents by known methods.
Patent GB-2038441-A (GB)
Title: Improvements in or relating to ladders
IPC: E06C7/08
Filed: 1978-11-11
Abstract: A joint between a hollow metal rung and a metal stile of a ladder comprises a metal ferrule inserted into the end portion of the rung, and expanded into tight engagement therewith. The ferrule extends through a hole in the stile, and has a flange in engagement with a face of the stile remote from the rung. The ferrule and rung may be expanded into a frustoconical configuration. The rung, ferrule and stile are preferably of extruded aluminium. <IMAGE>
Patent GB-2011834-A (GB)
Title: Guiding Aid for a Hand Held Circular Saw
IPC: B23Q9/00
Filed: 1979-01-04
Abstract: To enable accurate saw cuts to be made with a hand held circular saw, a guiding aid 15 is provided which can be mounted on the saw, the guiding aid being in the form of a guide member 16 which can be moved into engagement with the saw blade 2 and can then be extended forwards of the blade and locked in a position in alignment with the saw blade so that, when the saw is in use, the guide member 16 can follow a marking along which a saw cut is to be made. <IMAGE>
Patent GB-2013722-A (GB)
Title: Plating process
IPC: H05K3/42
Filed: 1979-01-10
Abstract: A process for plating metal on an electrically-insulating, non-metallic article e.g. of A-B-S plastics comprises the following steps in sequence with rinses as required:   (i) preparing the surface of the article eg by immersion in an alkaline cleaner, then a chromic acid etch;   (ii) immersing the article in a Pd/Sn activator; (iii) immersing the article in an accelerator which is an aqueous oxidising agent eg hydrogen peroxide, a peroxo complex of a transition metal ion, a perborate or a persulphate; (iv) plating metal (eg Ni/P alloy) electrolessly on the article; and   (v) electroplating metal (eg Cu, Ni and Cr in succession) on the electrolessly plated metal.   Aqueous oxidising agents have advantageously different characteristics to conventional accelerators.
Patent GB-2013006-A (GB)
Title: Data processing system using a high speed data channel
IPC: G06F12/10
Filed: 1979-01-22
Abstract: A data processing system includes central processor unit (CPU), a memory and a high speed, or "burst multiplexer", channel for permitting direct access to the memory by an input/output (I/O) device connected to a bus 10 without the need to use registers in the central processor unit and control signals from the central processor unit. The high speed channel utilizes its own memory port 22 separate from that of the CPU and includes internal paths for transferring addresses and data between an I/O device and the memory. The channel further includes a memory allocation and protection unit 17 (MAP) which selectively carries out logical to physical address translation and which can be loaded by transfer of memory allocation data via substantially the same common path as the I/O data transfer. Appropriate control logic is also included to control the data and address transfers and the MAP load and dump operations so that blocks of data words can be transferred sequentially and directly to or from the memory. <IMAGE>
Patent GB-2039680-A (GB)
Title: Optical systems
IPC: G09F19/08
Filed: 1979-01-25
Abstract: An optical system is provided comprising a projector 10 (e.g. cinematographic), a screen 12, a partially transparent mirror 14 positioned to reflect or transmit light from the projector to the screen and simultaneously transmit or reflect respectively light from the screen for viewing, and means 16 for preventing the light from the projector transmitted or reflected respectively by the mirror 14 from being viewed together with the light from the screen 12. The screen 12 may have the contoured shape substantially of a head, the mirror 14 be a flat sheet of plain glass, the mirror 14 be optically between the screen 12 and means 18 defining a viewing aperture, preferably provided by a window of transparent material, tinted grey and provided by a vertical cylinder within which is the screen 12 facing the mirror 14 and behind the screen there is opacity near or of the cylinder. The preventing means 16 may have the form of an absorbing horn. The housing may comprise lower, middle and upper portions into which it can be disassembled. There may be at least two auxiliary mirrors, 30, 32, 36 e.g. arranged to reflect the optical path parallel to itself and positionable to change the length thereof. <IMAGE>
Patent GB-2014667-A (GB)
Title: Pneumatic Apparatus for Moving Objects
IPC: A61B6/04
Filed: 1979-02-15
Abstract: A movable part 1 of an X-ray apparatus, for example, the screening stand, is supported by a double-acting compressed-air cylinder (4), the two variable-volume chambers (5, 6) of which are each connected to an associated compressed-air supply line (7, 8) which includes a throttle valve (9, 10) and an operator-controlled valve (11, 12) for connecting the respective chamber to a compressed-air source. The chamber in which compression is produced by the weight of the movable part is further connected to the compressed-air source through a pressure-regulating valve (13) which is adjusted so that the pressure in this chamber just keeps the movable part in equilibrium. When one or the other of the operator-controlled valves is actuated, air flows into the corresponding chamber and increases the pressure therein so that the movable part is displaced with very little effort from the operator. <IMAGE>
Patent GB-2021155-A (GB)
Title: Removing Tin From Cast Iron
IPC: C21C1/04
Filed: 1979-05-15
Abstract: A method of producing cast iron by a melting process such as a cupola melting process which includes the steps of passing the liquid iron as a spray of molten droplets through a vacuum chamber maintained at a pressure of up to 1 mm., the ingoing metal having a sulphur content at least approximately equivalent by weight to the percentage of tin desired or intended to be removed. The preferred S content of the iron before treatment is 0.08-0.15%, and the C content should be relatively high, e.g. 3.4-4.5%.
Patent GB-2052156-A (GB)
Title: Capacitors
IPC: H01G4/22
Filed: 1979-07-05
Abstract: In a capacitor, porous and/or absorbent solid dielectric (especially polypropylene) is impregnated with an insulating liquid comprising a monochloronaphthalene, which may have one (or more) alkyl substituent with up to nine carbon atoms. The liquid may include other components, especially di-2-ethylhexyl phthalate or an aromatic compound with two or more benzene rings in the molecule.
Patent GB-2045911-A (GB)
Title: Method and apparatus for providing chimney flues with insulated coatings
IPC: E04F21/14
Filed: 1979-10-30
Abstract: The internal walls of a chimney flue require an insulating coating. For this purpose loose insulating composition (214) is introduced from above into the flue and compacted by means of a vibrating bell (212) which is raised in the chimney in a vibratory condition by means of a cable (224) connected to a motor-driven capstan (222). The belt acts to press the loose insulating composition located above it, outwards, so as to compact it against the internal walls of the flue to form a coating (216). <IMAGE>
Patent GB-2042758-A (GB)
Title: Projection device comprising a bar lens
IPC: G03B27/52
Filed: 1979-11-30
Abstract: For a slit exposure type copying machine, a projection device comprises a bar lens 40, 41 having a great length in the direction of the optic axis thereof as compared with the effective diameter thereof, and a light absorbing member 42 on the side of the bar lens. A part area of an original D is projected upon a predetermined part area on an image plane P and the light intensity distribution of the projected part area has a predetermined central area controlled by lens aperture eclipse and a marginal area lying outwardly of the central area and weak in light intensity. A plurality of such bar lenses may be equidistantly arranged in the lengthwise direction of the slit in a plane perpendicular to the optic axis so that the marginal areas are superposed upon one another. Further, the bar lenses may be arranged in a plurality of rows so that each row is positioned just intermediate the adjacent row, whereby even if there is an error in the arrangement interval of the bar lenses, the uniformity, in the slit area, of the exposure amount time-integrated in the original scanning direction is maintained. <IMAGE>
Patent GB-2068168-A (GB)
Title: Bipolar transistor
IPC: H01L21/764
Filed: 1980-01-26
Abstract: A bipolar transistor is formed in a body of semiconductor material having a heavily doped layer 10 of one conductivity type and thereon an epitaxial layer 12 of the opposite conductivity type, the layer 10 being on a supporting layer 11, by forming a a groove 14 which encircles parts of the layers 10 and 12, which parts are electrically isolated from the remainder of the semiconductor material, providing a base contact region 16__, by introducing impurity into all the surface portions of the semiconductive material to form heavily doped material of said opposite conductivity type, and subsequently providing a collector contact region 25 of said one conductivity type at where the layer 10 defines a groove portion, the collector contact region possibly extending to the surface of the epitaxial layer, whilst simultaneously providing an emitter 24. Such transistors are suitable for integrated circuits. <IMAGE>
Patent GB-2044342-A (GB)
Title: An End Hinge Assembly
IPC: A47L15/42
Filed: 1980-02-11
Abstract: The assembly has a pivot pin (15, 16) mounted in and projecting from a double skinned door (11, 12) into a hole (20) concentric with a bulge (19), the hole and bulge being formed in two layers (17, 18) of a casing in which the door is mounted. The casing may be that of clothes or dish-washing machines. Leakage at the hinge is prevented. <IMAGE>
Patent GB-2051602-A (GB)
Title: Liquid-liquid extraction column
IPC: B01D11/04
Filed: 1980-05-30
Abstract: A liquid-liquid extraction column through which a carrier liquid and an extraction agent are fed in counter-flow has alternate mixing zones (9) and passive zones (10) along its length. An axial rotary shaft (7) bears agitator paddles (11) in the mixing zones (9). The passive zones (10) are formed by baffles (12) which have generally axial ducts (17) to permit axial flow but offer a high resistance to radial flow. This prevents back-flow of liquid from a mixing zone (9). In operation, the extraction agent rises. In mixing zones (10) it forms a disperse phase in the carrier liquid. In the passive zones it tends to coalesce on the baffles (12) (which are of wettable material, e.g. PTFE), thus partially closing the ducts (17), which remain open to the extent required by the carrier throughflow. Thus the baffles adjust automatically to the flow rate. Droplets break away from the coalesced layers (18) and are redispersed in the above mixing zone (9). <IMAGE>
Patent GB-2052958-A (GB)
Title: Wiper for the tip of a soldering iron
IPC: B23K3/02
Filed: 1980-07-02
Abstract: A wiper for the tip of soldering irons comprises a container 1, 2 having a narrowed neck opening 3 through which a fibrous material within the container partially projects, enabling the heated tip of a soldering iron to be wiped thereon to remove from the tip oxide residues, impurities and excess molten solder. The fibrous material in the form of a fleece-like strand, a wick strip, or cushion, or plastics material. <IMAGE>
Patent GB-2058874-A (GB)
Title: A Hollow Profiled Rod for a Fence or Gate
IPC: E04H17/10
Filed: 1980-08-07
Abstract: A strut comprises a hollow rod 1 having a fixing flange 2 of T-shaped cross-section which is encased by a hollow cover strip 3 provided with deviations such as recesses 3a or projections for the attachment of clamping devices. <IMAGE>
Patent GB-2085348-A (GB)
Title: Stretching of fastener stock
IPC: G09F3/14
Filed: 1980-10-14
Abstract: A method and apparatus is described for the stretching of fastener stock comprising two side members (10a, 10b) joined by transverse filaments (12) which are to be stretched. The stock is engaged by wheels (18, 20) which are spaced apart and are inclined to one another. The wheels, which have projections (22) (24) on their peripheries spaced apart by the same distances as the filaments, rotate at substantially the same peripheral speed in different planes to stretch the filaments that extend between the wheels. <IMAGE>
Patent GB-2063766-A (GB)
Title: Transfer lettering system
IPC: B41M3/12
Filed: 1980-10-31
Abstract: A dry transfer lettering system comprising a release carrier sheet bearing indicia formed by screen- printing a pigmented adhesive composition, the indicia optionally being protected by a release liner. Screen-printable pigmented adhesives which may be used to prepare the dry transfer lettering system comprise   (i) a pressure sensitive adhesive composition comprising an organic polymer adhesive, a tackifier resin and a mixture of aliphatic and aromatic solvents, the composition having a solids content of from 30 to 51% by weight, and (ii) 10 to 40% by weight of the pigmented composition of a pigment, e.g. carbon, the pigment composition having a solids content of 35 to 65% by weight.
Patent GB-2088271-A (GB)
Title: Moulding by coating formers
IPC: B29C61/08
Filed: 1980-11-28
Abstract: This invention relates to a process for making polyethylene mouldings for the production of heat- recoverable artefacts. In the process a former is heated to about 240 DEG C and immersed in a bed of fluidised polyethylene powder. Preferably the powder has 90% of its particles in the size range 150-300 micron and is at 75 DEG C. The former becomes coated with the powder, is withdrawn, and is heated to about 240 DEG C to fuse the coating. The coated former is cooled to 50-60 DEG C and the coating is stripped off the former at this temperature to produce an artefact. To produce a heat- recoverable artefact, the artefact is irradiated with 20-25 M Rad of gamma rays or high energy electrons, deformed at an elevated temperature and cooled while held in the deformed state. The heat-recoverable artefacts will find use as end caps for cables and gloves for cable terminations in the electrical industry.
Patent GB-2086475-A (GB)
Title: Axial flow fan assemblies
IPC: F04D29/64
Filed: 1981-01-29
Abstract: The fan assembly comprises a housing 1 including a front housing section 2 and a rear housing section 4. Mounted therein is a main motor M which drives an impeller F to draw air into and through the housing 1 and a low-speed motor M which drives a rotary louvre 7 mounted for rotation over the discharge opening 21 of the fan. The motor M is mounted in a sleeve 61 formed in a support arm 6 which can be pivoted about pivot pins 33 and pin-retaining bosses 32 between the position shown in Figure 2 and a position in which the arm (and low-speed motor) is removed from the housing 1 to allow access to the main motor, impeller and low speed motor. The arrangement facilitates cleaning and repair when necessary. The arrangement also enables manufacture of the fan by a method in which one or both motors (and the impeller) can be mounted after fixing together of the housing sections and avoids assembly difficulties. <IMAGE>
Patent GB-2075502-A (GB)
Title: Process for controlled degradation of liquid glucose syrups and cement additive therefrom
IPC: C07C59/105
Filed: 1981-04-28
Abstract: A process for the preparation of a mixture of aldonates of glucose, maltose and malto dextrines comprises treating a concentrated liquid glucose solution in homogeneous phase with an oxidising agent and/or an alkali. The product of the process is used as an additive to cement mortars and concretes.
Patent GB-2076498-A (GB)
Title: Joining Wooden Boards etc. with Plate Profile Members
IPC: E04H17/14
Filed: 1981-05-15
Abstract: A method of joining wooden boards and the like with open or closed plate profiles to various constructions, especially for outdoor use, of the type fence, garden furniture, bridges and the like. The method of the invention is characterized by the following operations. A plate strip of a plane material is first provided with punched holes (2) in the boards, the holes being arranged in pairs, two for each board. The plate strip with holes is thereafter pressed or rolled to its final profile (3), the punched out holes (2) forming guides of boards or bars, the retaining edges (3a) or the like (lugs or points) cooperating with the edge or lateral surfaces of the boards. Before the boards or bars are inserted into the holes they are dried to a moisture content which is as far as possible below the moisture content arising in the working environment of the device, preferably outdoors. After inserting the boards in the guide holes the moisture content is increased so that the boards swell and are pressed against the edges of the guide holes. <IMAGE>
Patent GB-2078456-A (GB)
Title: Frequency sensing circuit
IPC: G01R23/16
Filed: 1981-06-19
Abstract: To sense a frequency component F0 in an applied signal, 10, the amplitude of an input signal is sampled, 14, at a clock rate that is N times F0 and each amplitude sample is encoded, 20, as a digital word. The digital words are applied to a first input of an adder 22, and digital feedback words are applied to a second input of the adder. The output of the adder is applied to a delay circuit 24 which delays the adder output an integral multiple of one-half of the period T0 corresponding to frequency F0. The delayed words are multiplied by a constant K whose magnitude is less than one and greater than zero. The delayed and multiplied words are applied as the feedback words to the second input of the adder in phase with the encoded words applied to its first input. A circuit output signal is derived from the adder output, or from the delay circuit output. This circuit output signal has a magnitude indicative of the frequency of the input signal with respect to the clock frequency and its magnitude is greatest when the input signal frequency is equal to the clock frequency divided by N. The bandwidth of the circuit is adjusted by changing multiplier constant K which is programmable by external signals. Means are provided for adjusting the scale of the digital words applied to the first input of the adder to compensate for changes in K as they occur. <IMAGE>
Patent GB-2092247-A (GB)
Title: Disc brake actuator mechanism
IPC: F16D65/28
Filed: 1981-11-19
Abstract: A disc brake actuator mechanism has a spring and pneumatic actuator 1 with an output rod (3) which engages the end (4) of an arm of a lever (5) via a one-way clutch mechanism (6), the lever having a journal (13) and a pivot point (8) for connection to a rod (9) for applying a magnified force to a disc brake stator to apply pads to a disc, and a second one-way clutch arrangement (12) permitting a predetermined amount 'C' of return movement to determine a fixed brake clearance. The one-way clutch mechanism (6) comprises spring loaded rollers between rod (3) and the surfaces of wedge-apertures. The arrangement (12) has spring loaded rollers (33) housed in wedge apertures (35) in a slidable block (31), and a friction member (36) engaging rod (9). Block (31) is carried distance 'C' before block (31) is arrested following which rod (9) moves through roller (33). <IMAGE>
Patent GB-2083574-A (GB)
Title: Improved roller bearing
IPC: B65G7/04
Filed: 1981-03-16
Abstract: Conventional recirculating roller bearings often do not travel precisely perpendicular to the axis of the race. This roller skewing raises the level of friction in the system. The present invention provides an improved recirculating roller bearing (10) and a roller element (12) therefor in which the end members (18) of the rollers (12) have an axial bore (20) within a portion of the cylindrical end member (18). The axial bore extends between 30% and 50% of the length, and between 20% and 30% of the diameter of the cylindrical end member (18). This configuration effectively neutralizes the effects of roller skewing by reducing the amount of corrective force needed to realign a roller into a straight rolling trajectory.