baber/WOPTO huggingface dataset:
Patent GB-1364669-A (GB)
Title: Electro acoustic transducers
IPC: H04R11/00
Filed: 1971-12-23
Abstract: 1364669 Loud-speakers; microphones STANDARD TELEPHONES & CABLES Ltd 14 Dec 1972 [23 Dec 1971] 59930/71 Heading H4J A transducer for use with a microphone, loud-speaker, or telephone earpiece comprises a pivoted elongate armature of magnetically soft material, e.g. ferro-magnetic material, having a permanent magnet attached at one end and situated between the poles of further permanent magnets. The permanent magnets are made of rare-earth cobalt alloys of coercivity of the order of 10,000 oersted, e.g. the magnets may each be a 1 mm. cube of a samarium-cobalt alloy. A first embodiment (Fig. 2) includes a pivoted armature 10 having permanent magnets 11, 12 attached thereto and a coil wound around its magnetically soft portion for supplying a drive current for a diaphragm 13 or for receiving a current caused by the diaphragm being driven. Four further permanent magnets 14-17 are used as the stationary polepieces without the need for the usual soft magnetic circuit. The arrangement of Fig. 3 includes a soft magnetic circuit 20 coupling two permanent magnets. The armature is pivoted at one end and is laminated, the laminations being formed as horns 22-23 directed at the air gaps in the magnetic circuit. In this arrangement the central magnet provides positive stiffness to the armature vibrations, whilst the outer laminµ act like a conventional balanced armature giving negative stiffness. A pick up coil (or drive coil) may be mounted on the armature as shown or on the soft magnetic U-shaped yoke 20. The manner in which the armature is driven by (drives) the diaphragm is not disclosed.
Patent GB-1219630-A (GB)
Title: Laminated safety glass
IPC: B32B17/10
Filed: 1968-12-24
Abstract: 1,219,630. Safety glass. SEKISUI KAGAKU KOGYO K.K. 24 Dec., 1968 [29 Dec., 1967], No. 61447/68. Heading B5N. A laminated safety glass comprising at least two sheets of glass bonded by a polyurethane elastomer layer is made by (i) adding a curing agent to a urethane prepolymer which has NCO groups at both ends and which has been prepared by reacting a diisocyanate with polyester having OH groups at both ends, said polyester being made by reacting at least one dicarboxylic acid or dicarboxylic acid anhydride with at least one glycol; (ii) injecting the resulting liquid between at least two sheets of glass; (iii) curing the mixture. U.V. absorbents and antioxidants may be incorporated in the elastomer. Many examples of suitable curing agents, polyesters, glycols and dicarboxylic acid and acid anhydrides are specified.
Patent GB-1249426-A (GB)
Title: Voltage comparator
IPC: G01R1/28
Filed: 1969-12-18
Abstract: 1,249,426. Transistor switching circuits. BENDIX CORP. 18 Dec., 1969 [17 Jan., 1969], No. 61775/69. Heading H3T. [Also in Division Gl] In a circuit for determining whether an unknown voltage (V unknown) lies within a voltage window, there are provided a resistor string R 1 -R 6  serially connected with a constant current source, a primary reference voltage source VIN being connected to an intermediate point 25 of the string and secondary reference voltages V 1 -V 4  being tapped from other intermediate points 20-23, and a number of voltage comparator elements 40-43 with high impedance input parts, each element receiving as one input a respective secondary reference voltage and receiving as a second input the unknown voltage. Each comparator generates an output signal when a predetermined one of its inputs exceeds the other. Field effect transistors 17, 18 in series with the resistor string and with their bases connected to points in the string enable the constant current to be established between source terminals Ar, A-. The comparators 40, 41 test the unknown relative to the highest and lowest reference voltage V 1 , V 4  respectively, and each gives an output if the unknown is above the lowest and below the highest. These outputs are applied to AND gate 45 which provides an output if the unknown is within the window set by V 1 V 4 . Similarly AND gate 46 provides an output if signals are received from comparators 42, 43 indicating that the unknown lies within the window set by V 2 V 3 . The system is of use in an aircraft proximity warning indicator, to indicate whether the altitude of nearby aircraft is within a range of altitude relative to the protected aircraft such as to constitute a collision hazard, VIN being varied in accordance with the altitude of the protected aircraft. The two windows may be varied in width by altering R 3 -R 6 .
Patent GB-1240634-A (GB)
Title: Oxa-thia-bicyclo[3.3.0]-5,8-octadiene derivatives and their use as flavouring agents
IPC: A23L27/20
Filed: 1969-12-29
Abstract: 1,240,634. Flavouring agents for food and tobacco. R. FIRMENICH, G. FIRMENICH, R. E. FIRMENICH and F. H. FIRMENICH [trading as FIRMENICH & CIE]. 29 Dec., 1969 [27 Dec., 1968], No. 63158/69. Heading A2B and A2C. [Also in Division C2] Compounds having the general formula:- in which (a) X 1  is an oxygen atom, X 2  is a sulphur atom and R 1  and R 2  are both hydrogen atoms or both methyl groups or R 1  is methyl and R 2  is hydrogen and (b) X 1  is sulphur, X 2  is oxygen, R 1  is methyl and R 2  is hydrogen are used in the flavouring of foods. Examples are given of the use of the compounds in the flavouring of icecream, cake, puddings, milk chocolate and instant coffee. It is also stated that these compounds may be used for flavouring tobacco.
Patent GB-665792-A (GB)
Abstract: 665,792. Cooking-stoves. ALLIED IRONFOUNDERS, Ltd., ELLIOT, R. G. and BLUMSON, E. J. June 26, 1950. [Aug. 25, 1949] No. 22104/49. Class 126. In a solid fuel stove having a vertically disposed hopper-fed fire unit the unit, or a lower portion thereof, is split in a vertical plane to form two parts, one of which is constructed of heat-resisting metal, while the other is adapted for the association of a water-heater therewith so that it may be constructed of a different material, such as cast iron. As shown, applied to a cooking stove the fire unit comprises an upper annular part 1 and a lower part 2 including a combustion zone 3, ashpit 4 and grate supports 5. The lower part 2 is supported by the base 6 of the stove whilst the upper part 1, which has an outlet 10a leading to the flue passage 8a, is fixed by bolts 9 to one end of a laterally extending flue structure 8 supported by the oven structure 10 of the stove and is therefore supported independently of the lower part 2. The upper part projects downwardly into a flanged socket portion 2e of the lower part the junction between the parts being sealed by asbestos rope 11. The lower part 2 is split to form parts 2a, 2b, the part 2b being of heat resisting metal whilst the part 2a is associated with a water heater 13 provided with inlet and outlet connections 13a, 13b, and supported by a plate 14 fixed to the underside of the part 2a and long bolts 14b. To assist heat transference to the heater 13 a member 15 of relatively large mass and having an upstanding part 15a of arcuate form is provided. The term " heat-resisting metal " applies to alloys capable of withstanding, without rapid deterioration, temperatures within the range 500-800‹C, such as, for instance, an iron alloy containing 28 per cent chromium and 2 per cent carbon.
Patent GB-2001417-A (GB)
Title: Tarpaulin
IPC: F41H3/00
Filed: 1978-06-28
Abstract: A tarpaulin particularly useful for military purposes has at least an outer layer thereof reflective when subject to infra-red radiation, regions of varying reflection being provided to break up the outline of the tarpaulin so that the tarpaulin merges with its surroundings. Such regions may expediently also be of different shape and/or varying coloration. The tarpaulin may be used as a fixed component of the outer skin of an inflatable body, such as a rubber dinghy or a balloon. <IMAGE>
Patent GB-2006482-A (GB)
Title: Improvements in or relating to electronic calendar timepieces
IPC: G04C17/00
Filed: 1978-07-05
Abstract: An electronic timepiece with a date ring calendar in which date errors due to the months having different lengths are automatically corrected by a motor controlled by circuitry discriminating between months of different lengths and controlled to run fast at the ends of short months by a switch SW1 actuated by the date ring. The motor is a stepping motor which also drives the timepiece hands, and a counter 163 compensates for the time during which the hands are being driven at the higher speed. In Figure 6 switches SW1, SW2, SW3 control the operation of circuitry including counters 160, 161, 162, 163, 164 and 165, mono-multis MM, flip-flops FF, gates and inverters, the switches SW2, SW3 being under manual control. Gates 108, 109 and 117 have pulse inputs of different frequencies taken from the normally provided frequency divider (not shown) of the timepiece. Figure 6 provides automatic calendar correction for any year. In a modification calendar correction in a leap year is effected manually on February 29th. A mechanical arrangement for initial setting of the date ring is also described. <IMAGE>
Patent GB-2002683-A (GB)
Title: Removing branches from tree logs
IPC: A01G23/095
Filed: 1978-07-24
Abstract: A portable apparatus for removing branches from tree logs comprising a motor housing 5 on which are mounted two cutting devices 1, 2 at a fixed angle to each other and a movable third cutting device 3 having a guiding device 4 in rigid connection to the said third cutting device, the guiding device having means for forced guiding of the said movable third cutting device into contact with the trunk of a tree. <IMAGE>
Patent GB-2004326-A (GB)
Title: Hydraulic actuator for a drum brake
IPC: F16D65/22
Filed: 1978-08-14
Abstract: A hydraulic actuator (14) for a drum brake has a piston (36) slidably mounted within a bore (32) on the hydraulic actuator (14) and pressurized fluid communicated to the bore (32) acts against the piston (36) to move the piston and pair of brake shoes. A partition (44) is also disposed within the bore (32) to substantially define a secondary chamber (48) which receives pressurized fluid from the bore. The partition (44) is movably disposed within the bore (32) and resiliently engaged with the piston (36) so that increased pressure within the bore is transmitted to the piston via the partition and the resilient engagement (46). Moreover, the partition (44) controls venting of the secondary chamber (48) so that upon contact of the associated brake shoe(s) with a drum, backlash or retraction of the brake shoe(s) is limited. <IMAGE>
Patent GB-2005619-A (GB)
Title: Apparatus for conveying and guiding articles
IPC: B65G47/68
Filed: 1978-09-18
Abstract: Apparatus for conveying articles G such as bottles or cans comprises a tapering channel along which the articles G are fed. The rate of convergence of the sides F of the channel increases in the travel direction of the articles. With such a construction, the throughput of articles can be maximised while the noise is reduced. In another aspect of the invention, a flow of articles which is more than two articles wide is subdivided into a number of smaller flows which are two articles wide. These smaller flows are reduced to single file flows which are re- combined to provide a single single file flow. Where the flows re-combine, the central wall between the combining flows may end in a flexible extension, which helps the two flows to merge smoothly. <IMAGE>
Patent GB-2007874-A (GB)
Title: Automatic pattern generation type sewing machine
IPC: G05B19/4103
Filed: 1978-09-21
Abstract: In an automatic pattern generation type sewing machine, a function generating device 1103 generates stitch positions synchronously with the rotation of the spindle of the sewing machine by using a set or sets of stitch pattern parameters set in a register 1104 and performing a predetermined routine of computations upon the parameters to provide digital signals corresponding to the stitch positions. A servo driving device, moves the cloth or the needle in response to the digital signals. Where a plurality of sets of parameters are used, one pattern may be added to or multiplied by the other producing a modified baseline or envelope. <IMAGE>
Patent GB-2010507-A (GB)
Title: Exposure Control Devices
IPC: G03B27/72
Filed: 1978-10-19
Abstract: A microfilm camera has a diaphragm 161, 162 rotatable into the path of the exposing beam 17, 18 to an extent corresponding to the photoelectrically measured brightness of the original. As shown, the diaphragm comprises two blades 161, 162 mounted on a common shaft rotatable by a motor. The invention provides a very short response time. Fig. 2 (not shown) shows a central circuit in which an original brightness signal from photoelectric devices (6) is compared (at 31) with a signal indicating the instantaneous position of the diaphragm to provide a motor control signal. Fig. 1 (not shown) shows the camera which line-by-line copies both sides of a strip of originals. <IMAGE>
Patent GB-2007515-A (GB)
Title: Air Circulating and Mixing Apparatus for Cooking Pots
IPC: A47J37/01
Filed: 1978-10-24
Abstract: A cooking pot has a base receptacle 1 and a lid 2 the lid having a double wall portion 3, 4, within which is situated an air circulating device in the form of a motor driven impeller 8 the motor 9 being mounted on the outside of the lid 2. In operation air is drawn through a grid 19 in the inner wall 4 of the lid and circulated around the walls of the receptacle and through apertures in spacer plates 11, 13 within the receptacle. The circulating device may be located in the top of the lid or in the side of the lid. The apparatus may be used with known cooking receptacles i.e. pots, pans and trays. <IMAGE>
Patent GB-2024373-A (GB)
Title: Butterfly valve
IPC: F16K27/04
Filed: 1979-06-05
Abstract: The valve casing 1 is made of synthetic plastics and has axially extending reinforcing ribs (23), Figs. 1, 3 and 4 (not shown), formed on its outer circumferential surface. Hollow cylindrical pipe connectors 2 also of synthetic plastics are fastened to one another, as by bolts 25, with said valve casing clamped therebetween. The butterfly disc 8 is rotated by a shaft 21 through a reduction drive constituted by a threaded spindle 22 and an axially movable and rotatable member 15 having circumferential grooves 17 of varying helix angle cooperating with fixed balls 19. <IMAGE>
Patent GB-2015220-A (GB)
Title: A portable keyboard device
IPC: B41J5/10
Filed: 1979-02-15
Abstract: A portable electronic word- processing unit comprises a manually operable input keyboard 2; an internal power supply 15, 18, 14; a display device 13; output means 16, 17 to enable the word-processing unit to be connected to a printer; and electronic components including memory means and a micro-processor  mu P interconnected and programmed so as to receive from the keyboard signals corresponding to alpha-numeric characters and instructions for processing the characters, edit the character signals, feed signals to the display device for display of characters as an edited text, and store the edited text and print format instruction signals available for transmission through the output means. In a preferred embodiment, the keyboard has at least five keys and the micro- processor is programmed to record the signals produced by operation of any one key or a combination of up to a maximum of five keys to generate a coded signal representing a particular alpha-numeric character or processing instruction. <IMAGE>
Patent GB-2015459-A (GB)
Title: Package Flow System and Method of Making and Assembling the Same
IPC: B65G13/11
Filed: 1979-03-02
Abstract: The invention provides a roller assembly (10) having longitudinal ribs (48) which snap fit into shelf members (16) of a support frame. In one embodiment the shelf members (16) have upright T-shaped end members (81) with lateral extending feed (85) that engage the ribs. In another embodiment the shelf members (16) have longitudinally extending feet that engage the ribs. Preferably, the edges forming the underside of the roller assembly are supported by base portions of the shelf member. The roller assembly can be produced by a series of bending, stamping and roll- forming operations including advancing a generally continuous metal web through a series of processing stations including: blanking side wall openings in the web without completely severing the material from the web, simultaneously stamping roller-receiving openings in the web, forming longitudinal ribs and generally U-shaped edges with upturned flanges, bending the material blanked in the web to form arcuate shaft sections, placing the roller on the web and roll-forming the web to form a channel-shaped rail frame while simultaneously inserting the arcuate shaft sections into the hub of the roller. <IMAGE>
Patent GB-2020702-A (GB)
Title: Polyester dyeing
IPC: D06P3/54
Filed: 1979-04-12
Abstract: A process for the colouration of shaped articles made of polyester or copolymers or blends thereof, with disperse dyestuffs, in the presence of an effective amount of a retarding agent which is an ethoxylated or mixed ethoxylated/propoxylated derivative of a cyclic acetal derived from an aliphatic aldehyde and a polyol containing at least three hydroxyl groups. The retarding agent is preferably of structure I   <IMAGE>
Patent GB-2025256-A (GB)
Title: A Gas Transfer Process Using a Hollow Fiber Membrane
IPC: B01D53/22
Filed: 1979-06-14
Abstract: In a process which comprises allowing a liquid to contact the inside of a microporous hollow fiber and a fluid, gas or liquid, to contact the outside, thereby allowing gaseous components to transfer between the liquid and the fluid, the inner diameter of the hollow fiber for use in this process is 50 to 5,000 mu  and the wall membrane has an average micropore diameter of 0.01 to 0.5 mu , a porosity of 10 vol.-% or more, a micropore surface area of 5 m<2>/g or more, and an oxygen permeability of 10<-6> cm<3)<STP).cm/<2>.sec.cmHg or more. In cases where the liquid is water or a liquid substance in an aqueous medium, fibers of a polyolefin or a fluorinated polyolefin are suitable. Other applications include the transfer of gaseous components from a gas phase to a liquid, e.g. in absorption or artificial lung units; between two liquids or from a liquid to a gas.
Patent GB-2030268-A (GB)
Title: Universal joints
IPC: F16D3/56
Filed: 1979-07-23
Abstract: Each member to be coupled comprises ball and socket joints, the balls 11 of which have cylindrical bores. Pins 13 are slidable in the bores to form a coupling allowing a degree of flexible movement. <IMAGE>
Patent GB-2031044-A (GB)
Title: Non-woven Fabric
IPC: D04H3/05
Filed: 1979-08-03
Abstract: A web comprises continuous carbon filaments which extend in the same general direction in overlapping sinuous paths. It may be made by suspending a tow 1 of carbon filaments in a stream of liquid in a chamber 3 and forwarding it with the stream while spreading it in a fish-tail device 7 to a generally planar array. The spread array is fed onto an endless conveyor 12 which is pervious to the liquid and is moving in the same general direction as the array, but more slowly, so that the carbon filaments are deposited on the support in sinuous, overlapping paths to form a web. The web can be used to make an electrode for an electrolytic cell or as a reinforcement or a chemically- resistant liner for the resin wall of a vessel, pipe or duct. <IMAGE>
Patent GB-2027757-A (GB)
Title: Warp Knitting Machine, more particularly Crochet Galloon Machine for the Manufacture of Jacquard-patterned Pile Loop Knitted Fabrics
IPC: D04B25/08
Filed: 1979-08-20
Abstract: A crochet galloon machine for making of jacquard-patterned pile loop knitted fabrics, has sliding latch needles 1 which are reciprocable horizontally between vertical plates 5 which support the pile loops and includes a thread guide bar 8 for feeding the knitting threads, a guide bar 6 carrying thread guides 7 for laying a partial weft in a ground fabric, a plurality of pile thread guides 11 associated with each needle 1, means 13 for selecting the patterning pile thread 10a, plates 18 for laying the patterning pile thread 10a in the needle hooks, and means for underlapping each non-patterning pile thread 10, the threads 10, 10a being guided by a reed 15 displaceable horizontally in the direction of the row of needles 1 and also vertically. The reed 15 is movable substantially above the bottom edge of the needles 1 and has for guiding threads 10, 10a first gaps closed on the knocking-over side as far as the bottom edge of the reed 15. Second gaps in reed 15 between the first gaps can receive the needles 1 and plates 18. <IMAGE>
Patent GB-2033537-A (GB)
Title: Piston for pneumatic actuator
IPC: F16J15/3232
Filed: 1979-10-24
Abstract: A piston (12) capable of operating without lubrication is formed of resilient plastics material, e.g. polyurethane, and includes a control section (44), sealing lips (46, 48) and buffers (54, 56), and is a press fit on rod (32) where it is retained by plate (42). The piston may consist of a single plastics material, in which case it may have a skin of higher density, or it may have an outer layer of plastics material with a lower coefficient of friction. <IMAGE>
Patent GB-2040747-A (GB)
Title: Improvements in or relating to the winding of strip metal into a coil
IPC: B21D11/06
Filed: 1979-12-17
Abstract: Metal strip is profiled by pre- forming rolls 8 and wound into a coil between a rotating die (10) and a non- rotating die (4) which are profiled so as to complement the cross-sectional shape of the finished coil. The non- rotating die has a recess 35 to enable the strip to enter the region between the dies along a path at an angle to a plane P normal to the axis of the rotating die. <IMAGE>
Patent GB-2039104-A (GB)
Title: Data processing system
IPC: G06F7/491
Filed: 1979-12-17
Abstract: In a microprogrammed data processing system, the throughput of the system is increased by apparatus which counts the number of leading zeros of an operand on the cycle in which the operand is processed through a decimal unit. The count is added to the difference of the lengths of the operands used by the execution unit and by the decimal unit and the result sent to the execution unit, so that, even though only the data-carrying part of the operand is sent to the execution unit, the latter can construct an operand of its own operand length. The apparatus counts the number of leading zeros by first storing, in a register 730-96, the number of operand words the decimal unit will not send to the execution unit as determined by an instruction descriptor. Operand words are dealt with successively, and the contents of a first portion of the register are incremented every time an operand word contains all zeros, and the contents of a second portion of the register are caused to store the number of zeros in the most significant operand word. The contents of the whole register form the result sent to the execution unit. <IMAGE>
Patent GB-2040732-A (GB)
Title: Protecting metal bodies from corrosion
IPC: B05D5/00
Filed: 1979-12-31
Abstract: The microporous surface of a corrodible metal body, for example steel or aluminium, is protected against corrosive agents of the atmosphere and marine environments, by an impregnation of the pores by an inner protective material, preferably oil, that is substantially impervious to corrosive agents, and a covering of outer protective material, preferably resin, that is intimately bonded to the outer surface of the metal and bridges over the impregnated pores. After the impregnation, any of the inner protective material such as oil that may remain on the outer surface of the metal is selectively removed, while the inner protective material in the pores is selectively retained, whereby a secure, intimate bond of the covering to the metal is ensured to protect the metal from corrosion initiating from the outside, while the inner protective material remains operatively disposed in the pores to protect the covering from corrosive undermining.