baber/WOPTO huggingface dataset:
Patent GB-1239042-A (GB)
IPC: D05B65/00
Filed: 1968-07-09
Abstract: 1,239,042. Sewing machines. NAHMASCHINENWERK WITTENBERGE VEB. 9 July, 1968, No. 32780/68. Heading D1G. In a sewing machine, thread pulling and cutting and slow speed drive to "needle up" and "needle down" positions is controlled by a transistor circuit comprising logic, bistable and delay circuits. As shown, the arm-shaft A5 is driven by a motor M under the control of a slow speed control magnet M1. "Needle up" and "needle down" positions are detected by photo-electric sensors F1 and F2 shaded except at these positions. The sensors control a bistable circuit OL which in turn controls two AND gates receiving voltages :from "up" and "down" foot operated selector switches 52, 53 which control slow speed drive to the selected needle position. The outputs of the AND gates are fed via an OR gate to a switch circuit T3 having a threshold determined by a potentiometer P1 automatically set in accordance with shaft speed so that accurate stopping at the selected position is obtained. The resulting output is amplified at T4, T5 and T6 and used to control the slow speed magnet M1. It is also used to operate a monostable delay circuit T7, T8 which controls a bistable circuit T19, T20. The output of this together with outputs of preceeding stages is fed to an OR gate in unit A which controls an AND gate receiving also a signal from the cut and pull control switch S4, the gate preventing operation until the needle is stationary in the "needle up" position. The AND gate operates a monostable delay circuit T9, T10 followed by an amplifier B which controls the thread puller M3, F2 and, via delay and amplifier circuits C, D, the thread cutter M2, S. The circuit is such that the cutting cannot be effected twice and the machine cannot be operated during cutting. A circuit diagram of the various stages is described (Fig. 2, not shown).
Patent GB-1250482-A (GB)
IPC: B01D61/02
Filed: 1968-03-19
Abstract: 1,250,482. Reverse osmosis. MARSHALL SONS & CO. Ltd. 18 March, 1969 [19 March, 1968], No. 13190/68. Heading B1X. In a method of reverse osmosis a high pressure pump 1 draws feed solution from a tank 2 and pressurises it in a closed loop comprising a circulation pump 3, a reverse osmosis separation cell 4 and a delay line 5. The cell 4 includes a plurality of series-connected or series/parallel-connected tubular membranes, and desalinated water is collected therefrom via outlet 7. Delay line 5 is initially full of feed solution and serves to delay the reject brine issuing from 4 from being reissued, via 3, back to 4, the size of the delay line reservoir being considerably greater than the volume of the remainder of the loop so as to prolong the delay. A resilient plug of plastics material may be inserted into each tubular membrane; on reversal of the direction of flow in the closed loop the plug is swept along the membrane and cleans it surface.
Patent GB-1258916-A (GB)
IPC: B21B45/02
Filed: 1969-01-28
Abstract: 1,258,916. Quenching and flattening metal plate. WELLMAN INCANDESCENT FURNACE CO. Ltd. Jan.28, 1969 [Nov.6, 1968], No.52483/68. Heading C7N. In a method and apparatus for continuously and simultaneously roller flattening and quenching metal plates, both faces of the latter are subjected to mist sprays of quenchant which at least in the initial stages of quenching is allowed to flash off. As shown in Figs.1 and 2, the plate is passed between pairs of rollers, the contact surfaces of which are in part relieved so that any point of the plate subjected to roll pressure on one face is free of pressure on the opposite face.
Patent GB-1264275-A (GB)
IPC: C01B25/16
Filed: 1970-06-18
Abstract: 1,264,275. Phosphorous acid. STICKSTOFFWERKE PIESTERITZ VEB. 18 June, 1970, No. 29634/70. Heading C1A. Pure concentrated phosphorous acid is prepared by intensively mixing phosphorus trioxide and water in a molar ratio (based on H 2 O: P 4 O 6 ) of at least 6 : 1 at a temperature between 0‹ and 50‹ C. under an inert gas. The inert gas may be CO 2  or N 2 . The process is preferably carried out in a continuous reactor employing a mean residence time of 2-10 minutes. The phosphorous acid solution so obtained may be cooled and/or evaporated to crystallize out the solid phosphorous acid and the mother liquor recycled to the reactor where phosphorus trioxide and water are added to make more phosphorous acid.
Patent GB-1265641-A (GB)
IPC: H03M1/00
Filed: 1970-01-03
Abstract: 1,265,641. Analogue to digital converter. MARCONI CO. Ltd. 28 Aug., 1970 [3 Jan., 1970], No. 344/70. Heading G4H. In an analogue to digital converter two inputs at 1 and 2 are stored on capacitors 4 and 5 prior to conversion. Each input is fed to an amplifier 6 or 7 with amplification factor of unity and to an amplifier 20 or 21 with an amplification factor of 16, and thence to comparators 8, 9, 22 and 23.  The two inputs are digitized in turn. Considering input 1 only, initially AND gate 24 is opened and a polarity bit produced on line 19 by encoder 12. This causes an analogue signal corresponding to the most significant bit to be produced from current generators 11 and fed via summing junctions 10 to the input of the comparators, and also disables gate 24 and enables gate 15. If the input is greater than the reference, feedback gate 15 remains enabled, and the remaining 5 bits are determined in subsequent comparisons. If the input is less than the reference feedback gate 15 is disabled and gate 24 is enabled so that the amplified input is fed to encoder 12, again the remaining 5 bits are determined in subsequent comparisons. The gates 15, 16, 24 and 23 are controlled in the above operation sequence by means of logic in the encoder 12. Pulse input 17 controls the multiplexing function of the AND gates. The current generators 11 are non-linear so that a non-linear encoding characteristic is obtained.
Patent GB-1290651-A (GB)
Inventor: RICKETTS JR A W
IPC: B23Q5/54
Filed: 1970-01-05
Abstract: 1290651 Programmed control DIGITAL EQUIPMENT CORP 5 Jan 1970 [7 Jan 1969] 503/70 Heading G3N A controller, for use with a system operable in accordance with governing functions each defining a set of conditions of sensors associated with controllable devices, wherein the governing function are stored in a memory and compared element-by-element with sensor outputs and an output control is responsive to the comparisons to energize or de-energize the controllable devices. As shown, a machine tool 10 is controlled by a programmable controller 12. The machine tool has control inputs 14, to which voltages are applied to energize motors, clutches and solenoids, whereby workpiece and tool movements are effected and sensor outputs 16 from which a voltage or a no-voltage signal is obtained, indicative of the state of a machine operation. The controller 12 has a memory 18 and a memory buffer register 20 holding the contents of memory addresses for transfer to a instruction register 22 wherein they are decoded to control the operation of the controller. A programme counter 24, operating also as a memory address register, contains the address of the location in the memory whose contents are to be transferred to the buffer register 20. The control operations are sequentially timed by signals from a clock 26. The signals from sensor outputs 16 are fed to an input selector 28, gated by the register 20, which applies a selected signal on a terminal 31 to an input tester 38, wherein the voltage or no-voltage condition is determined by gates 44, 42 enabled by signals TST1, TST# from the instruction register 22. The existance of the desired condition imposes a ONE state on a flipflop 40. The states of the flip-flop 40 are logically inspected in accordance with instructions expressed in Boolean form to operate, through an output selector 30, flip-flops 34 actuating the machine tool through inputs 14, or supplying decision determining information in inputs 29. The memory contains an instruction sequence providing facilities for jumping a part or the whole of a governing function. In an alternative arrangement the use of jump instructions is avoided and the controller operates in a sequential fashion.
Patent GB-1290930-A (GB)
IPC: G01S17/86
Filed: 1970-07-29
Abstract: 1290930 Telescopes HUGH AIRCRAFT CO 29 July 1970 [11 Aug 1969] 36719/70 Heading G2J [Also in Division H4] Pulsed laser light (at 16) is directed onto an object by lens 60 and prism 54. The radiation from the object is focused by mirrors 22, 40 on to a filter 38 and I.R. process therethrough to 20. The laser light is reflected on to the silvered surface 56 of prisms 54 and omitted at 18. The apparatus forms part of a rangefinder (see Group H4).
Patent GB-1295572-A (GB)
IPC: H04L9/34
Filed: 1971-05-07
Abstract: 1295572 Ciphering; error detection INTERNATIONAL BUSINESS MACHINES CORP 7 May 1971 [30 June 1970] 13614/71 Heading H4P A data store has a number of locations serially connected in a first configuration and which can be switched to be connected in a second switch configuration. Serial data fed into the first configuration is hereby reordered when fed out from the second configuration, which can be used for scrambling or ciphering purposes or for redistributing error bursts to aid error detection. In Fig. 1 storage locations 1-15 when connected by the H contacts of switches S1-S14 are connected in rows, the end of one joined to the beginning of the next, but on changing over the switches to the V contacts are connected in columns, the end of one being joined to the beginning of the next. In another matrix arrangement (Fig. 2, not shown), some of the connections between storage locations are fixed to joining rows, and columns end to end and beginning to beginning. By including an inverter 20 (Fig. 1) in a feed-back path from output 17 to input 16, data in the store can be recycled with change of polarity. A succession of switchings and changes in polarity according to a predetermined key will scramble or cipher the data. The key may be combined with the previous block of data for greater security. In the ciphering arrangement of Fig. 5 having four matrices of stores I to IV, blocks of data are alternately entered into matrices II and III via switch S20, a copy of which is read into the matrices I (or IV) in OR combination with the user's ciphering key. The contents of matrices I and II (or III and IV) are now scrambled according to the contents of matrix IV (or I) which is a scrambled version of the key combined with the preceding but one block of data. The scrambled contents of II (or III) are now read out via switch S22 and the contents of matrix I (or IV) is the key for the next scrambling.
Patent GB-1297904-A (GB)
IPC: B21B39/00
Filed: 1970-01-13
Abstract: 1297904 Charging reheating furnaces HOESCH AG 13 Jan 1970 [15 Jan 1969] 1615/70 Heading F4B Apparatus for charging reheating furnaces 1 in a rolling mill comprises a rollerway conveyer 2 in front of the furnaces from which ingots are pushed therein by rams 3, a chain conveyer 4 running below and at right angles to said conveyer 2, a rollerway conveyer 9 feeding stacks 16 of ingots from said chain conveyer 4 on to unstacking tables 11, and rams 12 delivering one ingot at a time to said rollerway conveyer 2. A delivery trolley 6 carrying a spacing gauge 8 runs on rails (5, Fig. 2) below the chain conveyer 4. The rollerway conveyer 9, which may be raised or lowered runs on the same rails. In a modification (Figs. 3 and 4) the rollerway conveyer 2 is replaced by a walking beam conveyer. Operation.-A pile 15 of, e.g. four ingots is formed on trolley 6 by picking up ingots by a crane from locations 14 said pile being delivered at a spacing determined by gauge 8 behind the last pile 16 of ingots stacked on conveyer 4. The latter stops when the leading edge of the first stack of ingots strikes a limit switch (10, Fig. 2) behind conveyer 9, which then delivers the stack on to the appropriate table 11. A thrust block 13 is held against the remainder of the stack while the topmost ingot is pushed on to conveyer 2 by a ram 12.
Patent GB-1303834-A (GB)
IPC: H01L35/08
Filed: 1970-01-30
Abstract: 1303834 Thermoelectric devices UNITED KINGDOM ATOMIC ENERGY AUTHORITY 19 April 1971 [30 Jan 1970] 4731/70 Heading H1K The description is identical with that in Specification 1,303,833 but the claims are directed to a thermoelectric unit comprising elements of Bi 2 Te 3  joined by bridges provided by vacuum depositing Au on to the elements.
Patent GB-1304347-A (GB)
IPC: B25B5/14
Filed: 1969-03-29
Abstract: 1304347 Clamps R T FOGG 25 June 1970 [29 March 1969] 16591/69 Heading B4W A device for use in jointing a pair of picture or like frame members comprises a base 1 having two supports 3 which are cut away or positioned where they join to permit access to a frame joint, and means for urging members against the supports. The means are nylon join cleats 4 which are biased against stops 8 by springs each of which is wound around a pin 5 and have one end located in the base 1 whilst the other end presses against the side wall of a recess in the base of a cleat. Each cleat has edges 4a and 4b to cater for frame members of different thickness. The cleats may be changeable to allow for different thicknesses of frame or short cleats may be used in conjunction with extension pieces or packing elements. Means, e.g. a screw lock on the pivot, may be provided to lock each cleat in an operative position. Further, a saw guide may be incorporated or provided on the device to mitre the frame members. The plate, pin and support are made of plastics material.
Patent GB-1313210-A (GB)
Title: Radiant heat flow meter
IPC: G01K17/00
Filed: 1970-12-30
Abstract: 1313210 Thermoelectric devices SHOWA DENKO KK 30 Dec 1970 61845/70 Heading H1K A radiant heat flow meter comprises a thin plate of high thermal conductivity material opposite sides of which are provided with thermal resistance plates on which are disposed differential thermocouple (or resistance bridge) elements which are covered with black thermal resistance plates spaced from which are thin transparent plates defining air layers. As shown, Figs. 2 and 3, a silver plate 1 having fins 2 round its edge is sandwiched between a pair of thermal resistance plates 3 of mica on which are disposed a multiple differential thermocouple 4 of constantan and copper strips applied by vacuum evaporation. The thermocouples are covered with black thermal resistance plates 5 of mica vacuum plated with carbon and two thin transparent plates 6, 6a are arranged on both sides of the assembly to define pairs of air layers 7, 7a which prevent errors due to convection currents. In use the device is placed between two heated surfaces, the plate 1 being held at ambient temperature by the fins 2, and the output of the differential thermocouple is said to be directly proportional to the difference in heat flow received by the opposite sides of the device, i.e. to the next radiant heat flow between the two heated surfaces.
Patent GB-1316747-A (GB)
Title: Process for the production of a plastics laminate
IPC: B32B27/00
Filed: 1969-10-10
Abstract: 1316747 Coated foamed plastics sheet SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 4 Sept 1970 [10 Oct 1969] 49953/69 Heading B2E [Also in Divisions B5 and B8] A process for the production of a laminate incorporating an expanded plastics sheet and a toughened plastics sheet comprises (a) laminating a sheet or a layer of a toughened composition comprising an elastomertoughened polymeric vinyl aromatic compound to a sheet of an expanded polymeric vinyl aromatic compound; and (b) blending scrap laminate resulting from processing operations applied to the laminate with the toughened composition to form a composition for lamination to the expanded plastics sheet, or to form a composition from which toughened plastics sheet is formed for lamination to the expanded plastics sheet. The preferred polymeric vinyl aromatic compounds are polystyrene and copolymers of styrene with acrylonitrile or with acrylonitrile and butadiene. Suitable elastomeric components for making toughened polymeric vinyl-aromatic compositions are natural rubber or synthetic rubbers, e.g. polybutadiene, acrylonitrile-butadienestyrene rubber or styrene-butadiene rubber. In a preferred embodiment, the feedstock is produced by polymerising styrene in the presence of rubber and a lubricant and admixing the product with crystal polystyrene which is progressively replaced by scrap laminate as the process proceeds. The expanded vinyl aromatic polymer sheet may be formed by the extrusion of polymer particles incorporating a blowing agent; alternatively, it may be formed by expanding and moulding the particles with subsequential peeling of the sheet from the resultant block. The laminate may be formed by applying a layer of the toughened polymer by a roller-coater onto a preformed expanded sheet or by extruding the toughened sheet onto the expanded, e.g. on a roller nip. Package articles may be made by shaping a laminate made by the process of the invention by the application of pressure or vacuum and optionally heat into a 'lay-flat' blank embodying strengthening elements and hinge elements, trimming the blank (if necessary) and folding it along the hinge lines to bring the sections of the package into their desired relative positions, the sections then being secured on said positions.
Patent GB-1320343-A (GB)
Title: Attachment to be fitted to a roller mill to increase or decrease  the nip between a pair of rollers of the roller mill
IPC: B02C4/32
Filed: 1970-03-10
Abstract: 1320343 Roller mills ALVAN BLANCH DEVELOPMENT CO Ltd 19 April 1971 [10 March 1970] 11289/70 Heading B2A The nip 12 of a roller mill is adjusted by a device comprising a locating member 32, Fig. 1, connected to the mill frame 36, Fig. 2; a movable member 23 slidable relative to the locating member 32 and attached to a slide or slides 16 in which one 11 of the rollers 10, 11 is mounted, and an operating device 29, 30, 40, Figs. 2, 3, arranged on the locating member which moves the movable member 23 and slide or slides 16 relative to the locating member 32 to increase or decrease the nip. When the nip is to be decreased the movable member 23 engages an adjustable presettable stop or stops 37 connected to the fixed frame 36 of the roller mill and set to predetermine the nip. The operating device comprises a lever 40 whose movement is limited by stops 38, 39, operating an eccentric comprising a pin 29 having a projection 30 arranged parallel to the pin axis. The eccentric is located in a housing 31 secured to a plate 22 which is slidably mounted on rods 24 and urged by compression springs 26 against nuts 28 locked on the rods. The springs ensure that the housing 31 of the pin 29 and the plate 22 follow the eccentric movement of the pin. The ends of the rollers are sealed by wearing pins 41, Fig. 1.
Patent GB-1327875-A (GB)
Title: Continuously operable sheet processing machine
IPC: G03D3/06
Filed: 1971-11-05
Abstract: 1327875 Liquid supply control device in processing apparatus PENTACON DRESDEN KAMERA-UND KINOWERKE VEB 5 Nov 1971 51618/71 Heading G2A In a device for controlling the supply of regenerating liquid to a continuous developing machine, film fed through rollers 2, 3 deflects lever 5 carrying roller 6 from a grooved roller 8 and removes stop pin 15 from notched disc 11. Rotation of rollers 2, 3 then drives worm 10 and worm wheel 16 carrying a pin 19, to actuate a mercury switch S 1  of synchronous motor M, on each revolution. Motor shaft 22 carries adjustable cams 23, 24 which then close switch S 2 S 3  of liquid pump motors M 1 , M 2 . Cam 25 closes switch S4 to allow one complete revolution of motor M although S1 has opened. The end face of wheel 16 carries a pin 26 for cooperation with an arcuate projection 27 on lever 5 in order to lock the lever in a deflected position during switching of S 1  by rotating pin 19. The period of revolution of pin 16 is always longer than that of shaft 22.
Patent GB-1330985-A (GB)
Title: Skinfold calipers
IPC: A61B5/107
Filed: 1972-08-31
Abstract: 1330985 Caliper gauges LAWRENCE ADVERTISING Ltd 31 Aug 1972 [29 Nov 1971] 55347/71 Heading G1M Jaws 1 and 2 of an obesity gauge are pivoted together at 6 and urged towards one another by a spring 3, and a flat part 7 of a handle part 4 mounts a rotatable graduated disc 9 which in the position shown has a pointer 10 rotated to be coincident with a pointer part 8 of the other handle part 5 and a zero mark on its scale 11 which is coincident with a fixed mark 12 on the part 7. In operation, an object to be measured e.g. a fold of human flesh, is held between the jaws 1, 2 and the pointer 10 again brought to a point of coincidence with the pointer 8. The calipers may now be opened and removed, but the original reading may still be taken from the position of the fixed marker 12 relative to the scale 11. Additional marker 20, 21 and scales 22, 23 may be provided.
Patent GB-1339535-A (GB)
Title: Cable stripping tool
IPC: H02G1/12
Filed: 1970-12-29
Abstract: 1339535 Cutter for forming a helical slot BRITISH INSULATED CALLENDER'S CABLES Ltd 29 Dec 1970 [29 Dec 1969] 63010/69 Heading H2C A hand tool for stripping a relatively hard metal sheath, e.g. stainless steel, from a circular cross-section cable comprises a body 1 having a bore, enabling the tool to be placed over the cable end, and at one end of the body a slot 3 inclined to the bore axis at less than or equal to 45 degrees. The slot engages with a tongue previously formed in the cable sheath and the tool is rotated and moved longitudinally along the cable tearing a helical strip from the sheath. The medial plane of the slot preferably intersects the bore axis approximately mid-way along the length of the slot at an angle within the range 25 degrees to 45 degrees. The slot preferably has a width approximately 3 times the thickness of the sheath. A slot length of the order of 4 to 9 times its width can be used, the bore as shown may be a through bore and the handle 5 integral with or permanently or detachably secured to the body. Other means than the handle shown can be employed for facilitating rotation and longitudinal motion of the tool. To facilitate stripping a number of cables of different diameter cross-sections, a kit of parts can be supplied comprising a set of bodies 1 of different bores and slot dimensions and a detachable handle.
Patent GB-1340473-A (GB)
Title: Pipe couplings
IPC: F16L19/10
Filed: 1972-09-05
Abstract: 1340473 Pipe couplings BETABITE HYDRAULICS Ltd 5 Sept 1972 41017/72 Heading F2G In a pipe coupling of the type in which a ferrule 1 is forced by a nut 13 against the conical bore 16 of a socket 15 so as to deform it to bite into the pipe 12, the ferrule has a uniform bore from its trailing end to a shoulder 4, a tapered leading portion 8 which is of smaller length than the distance between the cutting edge 6 and the shoulder 4, and wherein the cutting edge has an included angle greater than 90 degrees and is of a diameter just greater than that of the ferrule bore. As shown, the ferrule, which is initially cylindrical, barrels under the axial force to bring the shoulder 4 into contact with the pipe thus inidicating by the consequent increase in tightening force needed that the ferrule has embedded in the pipe wall sufficiently. The ferrule is made from a length of tube which is externally machined, counterbored and rollswaged to form the leading taper. The latter operation works the metal to increase the cutting edge angle beyond 90 degrees to lie preferably between 92 and 96 degrees. The cone angle of the ferrule and the conical bore 16 is 24 degrees.