baber/WOPTO huggingface dataset:
Patent GB-1301726-A (GB)
IPC: C08F297/04
Filed: 1970-07-30
Abstract: 1301726 1,3-Diolefin-vinylaromatic compound block copolymerization FARBENFABRIKEN BAYER AG 30 July 1970 [2 Aug 1969] 36833/70 Addition to 1218147 Heading C3P Block copolymers are obtained by continuously feeding a separately prepared mixture of 1,3-diolefin, vinyl aromatic compound and a polymer of 1,3-diolefin containing catalyst (organolithium) residues to a self-cleaning twinshaft or multiple-shaft screw extruder. In examples, butadiene and styrene are copolymerized in the presence of n-butyl lithium, and the reaction terminated with stearic acid/2,6-dit-butylparacresol.
Patent GB-904183-A (GB)
Title: Improvements in or relating to boxes made of cardboard or like material
IPC: B65D85/10
Filed: 1957-11-27
Abstract: 904,183. Cigarette cartons. GRAVETT, J., and MOLINS MACHINE CO. Ltd. Nov. 25, 1958 [Nov. 27, 1957], No. 36983/57. Class 18. A cigarette carton is folded up from a cardboard blank as shown in Fig. 3, so that two oppositely disposed lid portions are formed each hinged along a crease line 6 to a side panel 1 and comprising a side 3, a top 4 and two ends 5, swingable downwardly to open and upwardly to close the carton. The carton ends 2 are formed of double thickness, as are lid tops 4 and ends 5; inserts 7 glued to the inside of the ends 2 project up to the level of the cigarette ends and provide frictional engagement with the ends 5 when the lids are closed. An insert 8 (dotted lines) may be glued inside one lid top 4 to enhance its engagement against the other lid top 4.
Patent GB-824761-A (GB)
Title: Improvements relating to apparatus for reproducing colour television pictures
Inventor: BILLIN JAMES JOHN
IPC: H04N9/26
Filed: 1954-12-22
Abstract: 824,761. Colour television tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. Dec. 22, 1955 [Dec. 22, 1954], No. 36987/54. Class 39(1). [Also in Groups XXXV, XL(b) and XL(c)] In a colour television receiver comprising a C.R.T. 7 having a screen consisting of groups of horizontal red, green and blue phosphor strips 13, 14, 15, Fig. 2, the cathode-ray beam is wobbled vertically at a high frequency, e.g. 5 mc/s or the chrominance carrier frequency 2À66 mc/s, during each horizontal line scan such that the beam impinges sequentially on the three strips of one group, and the red, green and blue signals are applied sequentially to intensity modulate the C.R.T. through gates 4, 5 and 6 in synchronism with the wobble frequency ; as described the wobble is sinusoidal but it may be sawtooth or stepped. According to the present invention the path scanned by the cathode-ray beam in any single line period is automatically maintained symmetrical with respect to the centre strip of a group by means of control signal strips 16 extending across the screen of the tube, one such strip being located between each pair of adjacent groups of phosphor strips. As described the signal strips are conductors insulated from the usual metallic backing film deposited on the phosphor ; alternatively they emit electro-magnetic energy outside the visible spectrum, e.g. ultra violet, which is detected by photo-cells. The colour sequence in adjacent colour triplets is reversed so that with an interlaced scan, one set of triplets, e.g. those suffixed a in Fig. 2, are scanned during odd-line fields and the other set suffixed b are scanned during evenline fields. One set of alternate signal strips 16a are interconnected by a lead 17 coupled to gates 19, 20 and the intermediate signal strips 16b are interconnected by a lead 18 coupled to gates 21, 22. The outputs from the gates 19, 21 and 20, 22 are coupled respectively to integrating circuits 24 and 25 which are coupled through a differential amplifier 26 to an auxiliary vertical deflection coil 28 to which is also coupled the wobble oscillator 30. As shown the input signal gates 4, 5, 6 are controlled by the outputs from a C.R.T. 8 having two sets of target electrodes 9, the vertical beam position being controlled by pulses of half field-frequency from a trigger circuit 12, so that one set of electrodes is scanned by an output from the wobble oscillator 30 during odd-line fields to operate the gates in one sequence and the other set of electrodes is scanned in a similar manner during the even-line fields to operate the gates in the reverse sequence. Alternatively when the wobble amplitude is greater than the width of a colour triplet, the gates 4, 5 and 6 may be controlled by pulses generated by the signal strips. Reference has been directed by the Comptroller to Specification 673,202 [Group XL(b)]
Patent GB-810545-A (GB)
Title: Pressure loaded brush
IPC: A46B11/06
Filed: 1954-12-23
Abstract: 810,545. Self-feeding brushes. WILSON, G. E. April 19, 1955 [Dec. 23, 1954], No. 37128/54. Class 19. A paint or like brush comprises a feed tube H housed in the stock and communicating with a plurality of flexibly feed pipes F located within the bristles and arranged to discharge paint near the bristle tips and a hollow boss J passing through the thickness of stock and communicating with the feed tube. Located in the boss is a non-rotatable screw Q with a union K fitted to one end and connected to a supply pipe P through which paint is supplied under the control of a self closing valve, there being one or more paint ducts in the screw leading from the supply pipe to the feed pipe. As described the self closing valve is of the needle type and is operated by a trigger in a pistol type housing, Fig. 3 (not shown). The reservoir from which the paint is supplied may be located upon the pistol like device or may be connected to it by a flexible tube.
Patent GB-946939-A (GB)
Title: Improvements in or relating to coal-face supports
IPC: E21D23/00
Filed: 1960-10-28
Abstract: 946,939. Advancing mine roof supports. A. HAARMANN. Oct. 28, 1960 [Oct. 29, 1959], No. 37173/60. Heading E1E. An advancing mine roof support comprises pit props 3 - - 8 connected to a conveyer 2 by lazytongs such as 9 which are disposed level with the floor and are selectively advanced in block or alternate fashion by pneumatic or hydraulic cylinders. The bottom limb of the lazytongs slides along the sole plate of the prop be means of a roller, see Fig. 3 (not shown).
Patent GB-340393-A (GB)
Title: Process and apparatus for manufacturing flexible tubes
IPC: B21D15/10
Filed: 1929-12-04
Abstract: 340,393. Making tubes. MEYERKELLER ET CIE, AKT.-GES., O., 45, Kellerstrasse, Lucerne, Switzerland. Dec. 4, 1929, No. 37177. Convention date, Jan. 18. [Classes 83 (ii) and 83 (iv).] Corrugating.-A corrugated tube is formed from a plain tube by first pressing the corrugations from the inside by means of a ram of yielding material such as rubber or by a pressure fluid ram and subsequently transforming the intermediate cylindrical parts of the tube into the troughs of the corrugations by rolling. The tube 1 is held in a two part matrix 2 corrugated internally and the corrugations are pressed up by a rubber ram 3 actuated by a ram 4 with a projection 6 guided in a recess in the pressure abutment member 5. The matrix 2 has at least two corrugations, one of which takes a corrugation already formed in the tube to serve as spacing means for the next corrugation to be formed. The cylindrical portions between the partly formed corrugations are then shaped by rolls 7, 8, Fig. 5 and the corrugations closed in by rolls 7a, 8a, Fig. 6.
Patent GB-1056173-A (GB)
Title: Improvements in or relating to additional air admission systems for internal combustion engines
IPC: F02M1/00
Filed: 1963-09-23
Abstract: 1,056,173. Extra air admission devices. FILTRONA FILTER G.m.b.H. Sept.23, 1963 [Oct.1, 1962; Jan.31, 1963], No.37338/63. Heading F1B. Extra air is admitted to the induction pipe at idling speeds through a device i having circumferentially disposed openings h, the supply being reduced or cut off at speeds above idling. In Fig. 1 the extra-air inlets h are controlled by a sleeve i connected to a speed responsive device by linkage 1, the inlets h being open at idling speed and progressively closed as the engine speed increases. The extra air is admitted through a filter e and may be heated by a heater f. In Fig. 4 (not shown) the extra air is controlled by an engine driven centrifugal governor 11 comprising spring-loaded plungers 10 urged outwards by centrifugal force to close orifices 12 through which the extra air, admitted at 7 and flowing through passages 9, 8 and bores in the plungers 10, flow to an outlet 13 leading to the induction pipe.
Patent GB-1158434-A (GB)
Title: A Watering and Drainage System
Inventor: IZATT JAMES PATERSON
IPC: E01C13/08
Filed: 1966-08-19
Abstract: 1,158,434. Watering and drainage system. J. P. IZATT.17 Aug., 1967 [19 Aug., 1966], No. 37358/66. Heading A1B. A system for watering and draining an area of soil for the cultivation of turf comprises embedding at a predetermined position below the upper surface of a substantially water-impervious layer 8 which conveniently may be plastics sheeting, and providing a water drainage system WS above the layer 8. The system WS comprises a perimeter ring pipe 9 with a central supply pipe 10 having a water inlet 11 and a water outlet 13 adjacent the outlets 14 of the perimeter pipes 9. Radiating from the centre pipe 10 are a number of falling pipes 16 which connect the perimeter pipes 9 with the centre pipe 10. All the pipes are porous to allow water to leave and enter them. As shown in Fig. 1 the top dressing zone 1 may be fine sand and soil, zone 2 may be fine gravel. The root zone 3 may be soil and sand.
Patent GB-1156971-A (GB)
Title: Improvements in or relating to Chart Recorders
Inventor: JOHNSTON JAMES STEWART
IPC: G01D15/24
Filed: 1966-04-14
Abstract: 1,156,971. Recording apparatus. ROSEMOUNT ENG. CO. Ltd. April 6, 1967 [April 14, 1966; Aug. 22, 1966], Nos. 16454/66 and 37559/66. Heading G1J. Recording-apparatus comprises a chart having a surface coated with an adhesive which chart is movable between two guides 18, (22), and a marker in the form of a thread or filament also passing between the two guides but movable axially along them by a marker arm 17 and secured by the adhesive as it is pressed against the chart on passing between the guides. The guides may be rollers or polished metal elements and may be coated with polytetrafluoroethylene. The adhesive coating of the chart may be of a kind which can be cured chemically or by heat. The chart may take the form of an endless loop, a strip extending between a feed spool and a take-up spool or a rigid card. As shown in Fig. 3, the chart is formed of two layers 32, 33, one transparent or translucent, fed separately to the pinch between rollers 36, 37 with the thread 30 sandwiched between them and one layer may be coated with a pressure sensitive adhesive to stick the layers together after passing between the rollers. The arm 42 moving the thread 30 may be rotatable or rectilinearly movable e.g. by a diaphragm or bellows in which case the eye 45 through which the thread 30 passes may extend between the rollers, Fig. 5. The filament could be an endless loop. The apparatus could be used in a package of fruit to record ambient temperature.
Patent GB-777151-A (GB)
Title: Improvements in or relating to a method and device for forging multi-throw crankshafts
IPC: B21K1/08
Filed: 1954-12-30
Abstract: 777,151. Forging crankshafts. SCHLOEMANN AKT.-GES. Dec. 30, 1954 [Feb. 8, 1954], No. 37689/54. Class 83 (4). A multi-throw crank-shaft is made from a round shaft having pressed-in journals 1, Fig. 1, by pressing the enlarged portions between the journals in succession by means of laterallyacting dies 2, 3, Fig. 2, so as to form parallel locating surfaces 4 and to pre-form the crank webs 5, the crankshaft being rotated through the desired angle between adjacent cranks, between successive pressing operations, and then finishpressing the crank throws in succession by means of a laterally-acting punch acting in a direction at right-angles to the dies 2 and 3. All of the journals 1 for a crank-shaft are first formed in three steps by press tools la, Fig. 2. The blank is then supported on dies 15, Fig. 10, and is located in position by dies 21 engaging in the journals. The dies 15 are mounted on saddles 11 secured to a base-plate 10 and the dies 21 are mounted on saddles 20 carried by a pair of cross-bars 19 mounted on hydraulic plungers 24 working in cylinders 25a of a cylinder block 25. The cylinder block is secured to the ram 53 of a forging press. The laterally acting dies 2 and 3, Figs. 2 and 11, are carried by transversely slidable supports 30 which have outer wedge surfaces engaged by complementary surfaces on vertically movable wedge members 28 carried by hydraulic pistons 27 working in cylinders .25b in the cylinder block 25. When the crank-shaft blank is in position the main ram 53 is lowered, whereby the laterally-acting dies 2 and 3 are moved inwardly to press the enlarged portion supported between them. The dies 2 press opposed flat locating surfaces 4, Fig. 3 (not shown), on the central part of the enlarged portion corresponding to the crank-pin, and the dies 3 pre-form the crank webs 5, Fig. 4 (not shown). The dies 2 are then removed and a punch 26 having a pair of lower prongs is mounted on the block 25, the latter having been raised. The punch 26 is then lowered and the prongs thereof engage with the flat portions 4, thus guiding the punch. The material forming the crank-pin is thus pressed downwardly for forming the crank-throw and during this operation the dies 3 and a lower die 12, Fig. 11, form a die cavity which is open only at its upper end whereby the metal forming the webs may flow upwardly to form balance weights on the webs. Hydraulic pistons 34 are provided for retracting the lateral dies and an ejector 16 operated by a plunger 17 is provided for ejecting the crank-shaft. When one crankthrow has been formed the crank-shaft is moved to the right, Fig. 10, and the formed crankthrow is located by a member 18, thus positioning the next throw in its correct location. The holding dies 15 and 21 are located together by keys 11a engaging in recesses 20a.
Patent GB-344521-A (GB)
Title: Improvements in and connected with ventilating fans and the like
IPC: F04D25/10
Filed: 1929-12-09
Abstract: 344,521. Worm gearing. STONE & CO., Ltd., J., Deptford, and VIDAL, J. F. B., 18, Brandram Road, Lee, both in London. Dec. 9, 1929, No. 37723. [Class 80 (i).] In means for causing a fan and motor e to gyrate, a reaction arm z employed in the apparatus is driven by reduction gearing comprising a worm n on the motor shaft which engages worm wheel teeth o on a drum p which is also formed with worm grooves v, Fig. 2, to engage internal worm wheel teeth on a ring w.
Patent GB-1494658-A (GB)
Title: Limb prostheses
IPC: A61F2/76
Filed: 1975-09-16
Abstract: 1494658 Artificial limbs OTTO BOCK ORTHOPADISCHE INDUSTRIE KG 16 Sept 1975 [16 Sept 1974] 37938/75 Heading A5R A leg prosthesis comprising a skeletol ' tube 9 joined to an artificial foot 2 is provided with a foam plastics cosmetic sheath 1 having secured thereto a joining plate 3 having sockets 4, Fig. 1 for connection with upstanding pins 13 provided on a connecting plate 10 secured to the foot 2 by an anchoring screw 11, whereby the cosmetic sheath 1 may be readily removed from the foot 2, a central opening 7 being provided in plate 3 around skeletol tube 9. One side of recess 4 is defined by a resilient torque 5 which gives a strong grip on pins 13. Skeletol tube 9 has a linkage member 8 which connects with a stud 12 on plate 10 of the foot 2. Pins 13 may alternatively be provided on joining plate 3 and the recesses provided in connecting plate 10.  Alternative prosthesis may have similar removable cosmetic sheaths, joined to a hand, or to a knee or elbow joint.
Patent GB-1489729-A (GB)
Title: Electrical switches
IPC: H01H13/12
Filed: 1976-09-14
Abstract: 1489729 Retractive switches ILLINOIS TOOL WORKS Inc 14 Sept 1976 [15 Sept 1975] 37942/76 Heading H1N An electric switch comprises a fixed contact 38, Fig. 5 upstanding from a terminal 28 in the base 14 and engaged by a coil spring contact 44 attached to a terminal 30 in the base and maintained in an arched position with its end above the contact 38 by a depressible actuator 22, 48. The coil spring 44 also serves as the restoring spring for the actuator 22, 48. The switch is particularly suitable for use in small dual-in-line switch packages for mounting in printed circuit boards and the push buttons 22 may have recesses 36 for engagement by the point of a pencil. The switches may each have an indicator in the form of a light-emitting diode 18 having leads 64, 66 straddling a support rib 80 and retained in position by a cover 12 which clamps a bent portion of each lead 64. Both leads 64, 66 may be joined to or be integral with terminals (90, 98) Fig. 8 (not shown) extending through the base 14. In a modification each diode 18<SP>1</SP>, Fig. 12 is in the line of the contacts 38<SP>1</SP>, 441 with one lead 64<SP>1</SP> extending directly downwards to extend through the base and form one terminal 901. The other lead 66<SP>1</SP> is cut short for engagement in a recess 49<SP>1</SP> in a bent up lug 41<SP>1</SP> of the switch contact 38<SP>1</SP> so that the diode 18<SP>1</SP> is in series with the switch and only two terminals 30<SP>1</SP>, 90<SP>1</SP> extend through the base.
Patent GB-1060731-A (GB)
Title: Semiconductor devices and methods of preparing them
IPC: H01L29/78
Filed: 1963-09-26
Abstract: 1,060,731. Field effect transistors. RADIO CORPORATION OF AMERICA. Sept. 26, 1963 [Oct. 15, 1962], No. 38032/63. Heading H1K. A field effect transistor consists of superposed P- and N-type channels with common source and drain contacts and a single insulated gate electrode for controlling current flow in both channels. Such a device exhibits a drain current which increases for both positive and negative changes in gate voltage from a certain value. The P and N channels may be superposed on a poly- or mono-crystalline semiconductor or insulating substrate to form a PN-junction or with an insulating layer between them, suitable substrate materials being intrinsic silicon, glass, alumina and polyethylene terephthalate, The channels may each be of polycrystaline or monocrystalline material and may be of the same or different semi-conductors selected from germanium, silicon, gallium arsenide, indium antimonide and cadmium sulphide. The gate electrode, of aluminium, silver or gold is capacitively coupled to the channels through a layer of insulation such as an organic polymer or silica. Several devices may be formed on a common substrate and then subdivided or interconnected in any desired manner. A typical device, Fig. 1, is made by epitaxially depositing 2 Á thick N- and P-type silicon layers 25, 27 on a 1000 ohm cm. silicon substrate 23 from gaseous mixtures of hydrogen, silicon tetrachloride and chlorides of phosphorus and boron respectively. Source and drain regions 33, 35 and contacts 37, 39 are then formed by vapour depositing antimony-doped gold on the ends of the layers and alloying them through both layers. The gate is subsequently formed by vapour deposition of silicon monoxide 29 and aluminium 31. As an alternative the P-layer 25a (Fig. 4) is formed within the substrate by diffusing in boron from a deposited borondoped silica layer by heating in dry nitrogen.' After removing the residual silica the surface is oxidized to form an N-type inversion layer 27a and overlying oxide layer. The oxide layer is removed except from the central part 29a of the inversion layer and source and drain electrodes formed by first vapour depositing antimony doped gold 41, 43 through a mask, and after alloying, vapour depositing aluminium 45, 47 and alloying it to the P and N layers. Finally an aluminium gate electrode 31a is provided. The theory of operation of the device is discussed.
Patent GB-1195244-A (GB)
Title: Creep Totaliser
Inventor: CURWEN KENNETH ROBERT
IPC: G01K7/02
Filed: 1967-08-17
Abstract: 1,195,244. Digital measurement of consumed life. KOLLSMAN INSTRUMENT Ltd. 10 Sept., 1968 [17 Aug., 1967], No. 38037/67. Heading G4H. Apparatus for determining the consumed life of equipment (e.g. an aircraft engine) the consumed life being dependent upon time of operation and the temperature at which the engine is operating comprises a law unit 3 which receives a signal which is a measure of the temperature and gives an output current which is proportional to the corresponding rate of deterioration of the engine, and a variable ramp generator 4 the repetitive output rate of which is proportional to the output of the law unit and a counter 6 counting the operations of the ramp generator. The temperature signal is derived from a number of thermocouples on the engine and the output voltage is compensated for variations of ambient temperature by a cold junction compensator 2 (Fig. 3, not shown). The temperature/deterioration rate curve is different when water is injected and, in this case, a control relay switches a bias voltage to the law unit to displace the curve of operation. The law unit consists of an amplifier and a pair of transistors having an exponential characteristic which reproduces the required curve of operation. A threshold circuit 9 responds when a critical temperature is reached to give an over temperature alarm. The ramp generator 4 is a Miller circuit, the rate of rise being proportional to the input voltage. At a given level a Schmitt trigger fires to apply an opposite voltage to return the ramp generator to its zero condition in a negligible time. The amplifier and exponential transistor circuit of the law unit and the Miller ramp generator are all housed in an oven to operate at a fixed temperature. The law unit may be replaced by simply plugging in a new unit, so that the operating characteristic may readily be changed.
Patent GB-938098-A (GB)
Title: Improvements in and relating to hand tools for cutting holes in sheet material
IPC: B21D28/34
Filed: 1958-11-26
Abstract: 938,098. Punches; dies. K. L. SOMPER. Oct. 22, 1959 [Nov. 26, 1958], No. 38094/58. Class 83 (4). A tool for cutting a hole in sheet metal &c. 22 comprises a punch 10, a die 11 and means 12, 18 for urging the punch and die together. A reduced part 16 of the nut 12, which engages the bolt 18, locates the die 11. In a modification, Fig. 2, the square die 32 is located by a collar on the bolt-head and the punch 31 by flats 36 on the punch and bolt 33, which has a separate nut 34. The punch has a tooth 35 at each corner.
Patent GB-381010-A (GB)
Abstract: 381,010. Ticket printing and registering apparatus. A. E. G. FAHRKARTENDRUCKER GES. and BROCKHAUS, G., Hennigsdorf, Osthavelland, Germany. Dec. 3,1931, No. 33574. [Class 106 (iii).] In a ticket printing and issuing machine the base-plate 1 of an insertible printing plate has fastened to it the block 2, for matter excluding the price, and carries an interchangeable insertion piece 4 having attached to it the block 3 for printing the price. The piece 4 also carries a printing block 5 for printing price on a checking strip and pins 6 for actuating adding mechanism. The insertion piece 4 carries on its upper side two pins 8 which enter into corresponding holes of the base-plate and which have formed in adjacent sides cross slots to receive a thin plate 9 of soft, non-springy material, which is cambered so that it may be inserted into the recess in the base-plate provided for it and then pressed flat, its edges then entering the cross slots in the pins 8.