baber/WOPTO huggingface dataset:
Patent GB-1523679-A (GB)
Title: Photoelectric angular position sensor
IPC: G01D5/30
Filed: 1976-12-06
Abstract: 1523679 Detecting angular position V F GUMEN T V KALININSKAYA R N LOPAREN and G V SLADKOV 6 Dec 1976 50676/76 Heading G1A In a photo-electric angular position sensor for a stepping motor, a mirror pyramid 8 is positioned on top of the motor's shaft 3. As the shaft rotates the pyramid reflects light from a source 5 as shown via one of a series of mirrors 10 so as to scan across a series of ends of light guides 12. Each guide leads to a photo-electric receiver 14. The pulse outputs of the photo-electric receivers (which represent the positions passed) may be given a direction or sign by processing them, Fig. 4 (not shown) with the pulse signal outputs of a corresponding set of photo-electric receivers 24 forming a corresponding optical system 15, 19, 22. A condenser lens 25, Fig. 3 (not shown) may be placed between the emitting end of each light guide and its corresponding photo-electric receiver.
Patent GB-1503866-A (GB)
Title: Device for holding electrode sets
IPC: H01M50/541
Filed: 1976-12-06
Abstract: 1503866 Device for holding electrode sets TUDOR AB 6 Dec 1976 [9 Dec 1975] 50700/76 Heading H1B In the manufacture of accumulators electrode sets are held in a device comprising partitions 1-7 held in movably arranged partition holders 22 and 23, and wedge holders 24, 25 having wedges 8-21 attached thereto and which move in the same plane as that of the partitions and which project beyond the extremities of the partitions in a plane perpendicular to that in which the partitions and wedges are free to move. The electrode sets are placed in the respective spaces between the partitions and the partition and wedge holders move inwards. Knives or blades 45, 46 penetrate the separators centring the electrode sets with respect to one another, the force being applied to the wedge holder and being transferred to the partition holder through the springs 40; the respective disposition of wedge and partition holders remaining substantially constant until the partition holders reach stopping blocks 36-39. The distance between the partition holders on reaching the blocks being equivalent to the width of the separators; the electrode sets are locked into position by the wedges corresponding to their respective positions in the finished battery, the movement of the wedges continues until arrested by the partition holders. A multiplicity of electrode set holders may be coupled together by rods (Fig. 3, not shown).
Patent GB-1534521-A (GB)
Title: Input circuit for a misfet integrated circuit
IPC: H03K19/0944
Filed: 1975-12-11
Abstract: 1534521 FET circuits HITACHI Ltd 11 Dec 1975 [6 Jan 1975] 50854/75 Heading H3T A circuit for using a high voltage as input to a MISFET circuit, e.g. an inverter M3, M4 comprises an enhancement MISFET M1 connected between the input and a lower voltage supply V GG  and a second MISFET M2 in series between the input and the gate of the inverter driver M4. When the high voltage is applied to the input, M1 turns off and M2 limits the voltage on the gate of M4 to (V GG -Th) or (V GG  + Th) where Th is the threshold voltage according to whether M2 is of enhancement or depletion type. Resistors R1, R2 may be provided to protect the MISFETS gate insulation from breakdown by interference voltages. As described the invention is used in a desk-top calculator in which the high-voltage supply to a display 2 is connected to a key switch 3 for connection to the input.
Patent GB-1371221-A (GB)
Title: Yarn feeding arrangments for knitting machines
IPC: D04B15/54
Filed: 1971-11-02
Abstract: 1371221 Knitting machines TESALON ANSTALT 2 Nov 1971 [24 May 1971] 50948/71 Heading D1C A yarn feed member 15 which is rotatable about an axis passing through the knitting zone of a knitting machine has an end 18 from which emerge, at spaced points, two different (e.g. differently coloured) yarns and an elongated member 36 lying parallel to the axis is connected at one end to electro-magnetic actuator means controlled by a pattern unit and at the other end to the feed member to turn it when the member is actuated. In a parallel knitting machine with needle beds 1, 2 an assembly 3 moves back and forwards with respect to the needle beds and selectively entrains blocks 6 carrying yarn guides 5 which slide on polygonal guides 4. Each guide 5 comprises a rod member with a groove closed by a plate in which slides a rod (32) Fig. 2 (not shown) engaged through a slot by an actuating member. A member 15 is rotatable but not axially movable in the lower end of member (7) Fig. 2 (not shown) and has a helical groove 28 engaged by a roller (25) on rod (32) so that it is rotated as rod (32) moves up and down. Yarns 40, 41 e.g. of different colours pass in opposite directions through part 18 of member 15. Member (32) is actuated by member (34) through linkage from a member (39) controlled from the machine so as to turn part 18 and determine which yarn will come to the surface. A pair of electro-magnets control member 39. In a hand-operated machine, Fig. 9, guide 55 may be rotated by a cable 67 wrapped round it and controlled by an electro magnet.
Patent GB-1471892-A (GB)
Title: Mechanical seals
IPC: F16J15/34
Filed: 1974-04-25
Abstract: 1471892 Shaft seals BURMAH ENG CO Ltd 25 April 1974 [25 April 1973] 51126/76 Divided out of 1471891 Heading F2B The subject-matter of this Specification is identical with that described in Specification 1,471,891, but the claims are concerned with an insulating spacer between the rotatable seal element and the sleeve.
Patent GB-1285929-A (GB)
Title: Improvements in or relating to a casting apparatus and method
Inventor: BERNARD JEAN PIERRE
IPC: B22C9/00
Filed: 1969-10-22
Abstract: 1285929 Casting machines and processes J-P BERNARD 22 Oct 1969 [31 Oct 1968] 51764/69 Heading B3F A method of casting metal components includes casting a component between a cylindrical reusable core 4 and a mould 1 surrounding the core, the mould having a sand dressing 5 over the mould impression and circulating cooling fluid through the core 4 and through channels 9, 10, 11 provided in the mould 1. When casting a pair of finned cylinders in a single mould 1, the mould comprises two halves hinged together and a single sprue 6 for supplying metal to the mould cavities (through a shower gate 54. Water-cooled cores 4 are mounted on a lifting device 19-21, 45 which also supplies water to the cores. Bayonet connections (18, not shown) join the lifting device and cores. In Fig. 6, a rotating table casting machine is shown in which after casting and cooling, the mould halves at a station 29 are pivoted open and the cores removed by a lifter 46 to be dipped into a tank 49 of dressing slurry. The castings are ejected and at stations 30-33 the moulds are respectively cleaned, stripped and relined. Dressed cores are inserted into the moulds at a station 36. The mould halves are pivoted to a closed position at 37 and pouring takes plate at the next station.  Casting processes.-After pouring molten metal the cores are at first allowed to heat and expand. Coolant is then passed through the cores so they contract. This facilitates removal of the cores from the casting. Cooling is so controlled that the molten metal solidifies from the cores outwardly thus leaving sound bores in the castings. The coolant cavities 9, 10, 11 are arranged selectively to remove heat from the castings to avoid piping.
Patent GB-1091312-A (GB)
Title: Improvements relating to roof supporting systems for mine workings
IPC: E21D23/04
Filed: 1964-12-21
Abstract: 1,091,312. Conveyers; mine roof supports. K. M. GROETSCHEL. Dec. 21, 1964 [Dec. 21, 1963], No. 51783/64. Heading B8A. As shown a conveyer 9 or other anchorage member has already been advanced towards a newly exposed coal face, as have also roof supports 1d, 1c. In respect of a support 1b not yet advanced a guiding device comprising interconnected side members 26, 27 and a stay bar 36 is put into its operative state by extension of a piston and cylinder unit 35 constituting bracing means to move the side members 26, 27 apart to the maximum extent as determined by chains 45, the guiding device between roof supports 1b, 1a remaining inoperative. A piston and cylinder unit 7b forming traction means is then pressurized to draw the support 1b forward, props 2b, 3b being lowered while props 2c, 3c are extended. The lower side face of base 10b remains in contact with the side member 26, due to the sloping floor, Fig. 8, and moves along a path determined by this member. The support units may be two-part. The bracing means may be manually adjustable instead of power operated and more than one such means may be used, Figs. 15, 14, respectively (not shown). Interconnected upper and lower guiding devices, with variable separation, may be provided as shown in Fig. 1.
Patent GB-1420760-A (GB)
Title: Catalyst for polymerisation and copolymerization of olefins and  a method for preparing same
IPC: C08F4/62
Filed: 1972-11-10
Abstract: 1420760 Transition metal complexes of polyols INSTITUT KHIMII NEFTI I PRIRODNYKH SOLEI AKADEMII NAUK KAZAKHSKOI SSR 10 Nov 1972 51925/72 Heading C2C [Also in Division C3] A binary catalyst system for use in polymerization and copolymerization of olefins consists of a complex compound of the formula [D-O-MX n-1 ]. m MX n , formed by the interaction between MX n  and DOH, wherein M denotes a transition metal or a transition metal oxide of Groups IVa or Va of the periodic system, X denotes halogen, n denotes the number of halogen atoms joined to M and is 2 or more, m is zero or a whole number of from 1 to 50 and DOH is a modifying ligand of the electron-donor type and is either (a) a polyglycolic ether of a monohydric alcohol R-(CH 2 CH 2 O) k -OH (wherein R denotes C 6 H 13  to C 9 H 19  and k is from 3 to 9), (b) a polyglycolic ether of a dihydric alcohol (RCOOCH 2 ) 2 C[CH 2 (CH 2 CH 2 O) k -OH] 2  (wherein R denotes C 4 H 9  to C 6 H 13  and k is from 2À5 to 29), (c) a polyglycolic ester of a carboxylic acid (wherein R denotes C 11 H 23  to C 17 H 35  and k is from 10 to 160, or (d) an anhydrosorbitol of a carboxylic acid (wherein R denotes C 11 H 23  to C 17 H 35  and (k 1  + k 2 +k 3 ) is 20 to 85); in admixture with an aluminium-organic compound of the formula AlR<SP>1</SP> p Y 3-p , wherein R<SP>1</SP> denotes a C 2 H 5  to C 4 H 9  alkyl or isoalkyl group, Y denotes Cl or H and p is from 1 to 3. The ratio of aluminiumorganic component to complex component is from 14 to 1 to 600 to 1. Specified complex components include [C 9 H 19 (CH 2 CH 2 O) 9 -O-TiCl 3 ].3TiCl 4 , [C 6 H 13 (CH 2 CH 2 O) 4 -O-TiCl 3 ].TiCl 4 , [C 9 H 19 (CH 2 CH 2 O) 9 -O-VCl 3 ].3VCl 4 , and [(C 4 H 9 COOCH 2 ) 2 C[CH 2 (CH 2 CH 2 O) 7 . 5 -OVCl 3 ] 2 ].5VCl 4 .
Patent GB-1080010-A (GB)
Title: Cold forming pipe elbows
IPC: B21C37/28
Filed: 1964-12-31
Abstract: 1,080,010. Bending. H. J. STEEL. Dec. 31, 1964, No. 52933/64. Heading B3E. A blank 34, formed from a pre-shaped metal tube, Fig. 5, is cold formed into a bend by forcing the blank around a curved channel in a die while supporting the ends of the blank with mandrels 46 and 56, the part of each mandrel embraced by the blank having a compound shape which is part cylindrical and part toroidal. The die is constituted by shaped blocks 22, 25, 31, and a roller 17, a plunger 55 being used to force a blank through the die. A mandrel 56 supports the trailing end of a blank 34b, while a floating mandrel 46 supports both its leading end and the trailing end of a blank 34a which is being formed within the curved channel. A collar 47 is provided centrally of the mandrel 46. In a similar operation (Fig. 11) a pre-shaped blank is formed between mandrels 91 and 83 against back pressure supplied by a fluid operated cylinder assembly 77. A roller die 72 is connected by an arm 75 to a piston rod 76, the die block 74 and mandrel 86 rotating with the workpiece drawing forming. Shaped collars 92 and 86 are attached to the two mandrels for co-operation with the blank ends.
Patent GB-1459107-A (GB)
Title: Setting knob
IPC: G05G1/08
Filed: 1974-12-06
Abstract: 1459107 Securing knobs on shafts KIENZLE APPARATE GmbH 6 Dec 1974 [8 Dec 1973] 52951/74 Heading F2U A knob is secured against rotation on a shaft to be set by, for example, teeth 4a and is made in two parts of contrasting colours, the inner body part 6 having a radial projection 7, 8 which extends through a recess provided in the wall of the outer bush part 11. The knob is fixed on the shaft by a screw 16 hidden by a cover 19 after the outer part has been slipped over the inner part. The projection may consist of an indicator 7 and a portion 8 bearing a mark.
Patent GB-1188567-A (GB)
Title: Improvements in Amplifier Circuits
IPC: H03F1/08
Filed: 1967-11-22
Abstract: 1,188,567. Amplifier circuits. INTERNATIONAL BUSINESS MACHINES CORP. 22 Nov., 1967 [9 Dec., 1966], No. 53070/67. Heading H3T. In an amplifier circuit, the output 4 of an operational amplifier 1 is connected to an output terminal 12 via a first signal path including an emitter follower amplifier 8 in series with a capacitor 9 and a second signal path including an inductor 10. Instability, e.g. oscillation, of the operational amplifier when connected to a reactive load 5 is prevented by the coupling circuits 6 and 7 which transfer high and low frequency signals respectively to the output 12. The emitter follower 8 allows the high frequency to be coupled from 4 to output 12, but isolates the high frequencies at the output 12 so that they cannot be fed back to the output of the operational amplifier 1 to cause the above instability. A resistor 11 is connected in parallel with the inductor 10 so as to prevent oscillation of the capacitor 9 and inductor 11. The operational amplifier has an input impedance Z in  and a negative feedback impedance Z f .
Patent GB-1166085-A (GB)
Title: Improvements in or relating to Automatic Vending Machines
IPC: G07F7/02
Filed: 1966-11-29
Abstract: 1,166,085. Token-freed apparatus. SCHEIDT & BACHMANN G.m.b.H. 29 Nov., 1966 [7 July, 1966], No. 53333/66. Heading G4V. A vending system includes a credit card having a monetary value magnetically recorded thereon and a vending machine adapted to receive the card and transfer the monetary value from the card into a store, a price calculating means operated by the vending machine to generate a number of pulses, each indicative of a fixed monetary unit, equal to the price of the goods dispensed, said pulses being subtracted from the monetary value in the store, and means operated on completion of a dispensing operation to transfer the new monetary value from the store on to the credit card which is returned to a customer. The credit card bears a code number and the complementary number must be entered on a keyboard to free the vending machine. The vending machine may dispense petrol.
Patent GB-1300597-A (GB)
Title: Method and apparatus for making dry ice pellets
Inventor: PIETRUCHA VICTOR FRANK
IPC: C01B32/55
Filed: 1970-11-11
Abstract: 1300597 Moulding carbon dioxide AIRCO Inc 11 Nov 1970 53653/70 Heading B5A [Also in Divisions B1 and F4] Carbon dioxide liquid is injected at inlets 14, 16 into a brass cylinder 62 to form snow during downward movement of an hydraulically actuated plunger R to a lower limit, and for part of a dwell period e.g. preferably of at least 2 secs., when carbon dioxide gas in the snow is bled off to a pressure less than 30 p.s.i. e.g. 22-25 p.s.i. through cylinder perforations 66 and a diffusing sleeve 70, 72, which acts as a filter for the snow, the snow also being bled off during a following upward movement of the ram R to an upper limit to compress the snow into an ice cake, against a previously compressed cake which it extrudes as pellets through a plurality of circular orifices 25 into a hopper. The diffused carbon dioxide gas is removed, for recycling, at 74 from within an outer cylindrical housing 60. The perforations 66 are preferably not less than 0À040 inch diameter, and the diffusing sleeve comprises a stainless steel twilled 30 x 40 mesh screen sleeve 70 within an # inch thick welded sintered stainless steel sleeve of approximately 165 micron mean pore size. The liquid carbon dioxide inlets e.g. 14, 16, may be spaced 90 or 180 degrees apart and may be controlled by a single, or each by a different solenoid valve which is actuated, together with the ram hydraulic circuit, through an electrical control circuit, Fig. 10 (not shown), including time delay elements, by microswitches engaged during travel of a rod projecting downwardly from the hydraulic actuator of the plunger R. The orifices 25 are of “ inch to ¢ inch diameter and their inlets are flared by counterboring 90 to define knife edge lands 92, the ratio of orifice to total die area being preferably not less than 57% e.g. 65%. More than one cylinder 62 may be employed, operating in sequence, and the pellets therefrom discharge into a single hopper, and the rams may be operated by a single hydraulic device.
Patent GB-1385399-A (GB)
Title: Zirconium flame-resist treatment
IPC: D06M11/20
Filed: 1972-11-21
Abstract: 1385399 Flame retarding keratin fibres IWS NOMINEE CO Ltd 19 Nov 1973 [21 Nov 1972] 53766/72 Heading D1P A process for enhancing the flame-resistance of keratin fibres comprises treating such fibres, either alone or in admixture with other fibres, with an aqueous medium containing a titanium or zirconium fluoride complex and a compound capable of binding fluoride in solution, whereby the titanium or zirconium is taken up by the keratin fibres. Preferably the fluoride is anionic e.g. K 2 ZrF 6  (NH 4 ) 2  TiF 6  and the aqueous medium is made acidic e.g. with HCl. The binding compound may be a stannous, stannic, antimony, titanium, zirconium, bismuth, boron or silicon compound, e.g. a chloride, or may be boric acid or silica gel. In the case of fibres which have been dyed with a phthalocyanine dye, the aqueous medium preferably contains a soluble tungstate, e.g. sodium tungstate and the treated fibres are washed in an alkaline solution. The pH of the aqueous medium is preferably below 4. The medium may be applied preferably by immersion at temperatures from 20‹ to the boil. The keratin fibres may be wood and in the form of pile fabrics, e.g. rugs and carpets, light-weight knitted fabrics of open construction, fuzzed curtain materials, sheepskin or yarn.
Patent GB-1207557-A (GB)
Title: Lagging for metal pipes
Inventor: PAUL HANS HEMANN
IPC: F16L59/075
Filed: 1968-11-13
Abstract: 1,207,557. Pipe lagging. SUDDEUTSCHE KABELWERKE ZWEIGNIEDERLASSUNG DER VEREINIGTE DEUTSCHE METALLWERKE A.G. 13 Nov., 1968 [16 Nov., 1967], No. 53945/68. Heading F2P. Pipe lagging of foamed polyvinyl chloride is provided with internal longitudinal ribs 3 adapted to bear on the pipe 1 to define air-filled channels therebetween, the lagging having a skin layer 5 of about 0À1 mm. thick.
Patent GB-1487569-A (GB)
Title: Vapour staging distillation system
IPC: C02F1/10
Filed: 1974-12-13
Abstract: 1487569 Distillation apparatus TERRAQUA PRODUCTS Inc 13 Dec 1974 53992/74 Heading BIB [Also in Division Cl] A vapour staging distillation apparatus for producing condensate and concentrate from a feed liquid, e.g. sea water, comprises vertic-  ally extending evaporator and condenser sections separated by a vertically extending divider wall 44, means for passing feed liquid up the condenser 46, means 56 for heating the liquid after passage through the condenser and for transferring it to the upper part of, the evaporator section, means, e.g. netting 68, for generating in the evaporator section vertically extended thin films of the liquid, one or more openings 82 above the divider wall to allow evaporated liquid to pass from the evaporator section to the condenser section in a manner such that a vertically distributed bleed flow can exist between the top and bottom of the opening(s), means for flowing gas up the evaporator and down the condenser sections and means for collecting condensate 100 and concentrate 14. As shown, the wall 44 forms a top edge 78 and branches down at an acute angle and continues as a bottom wall 86 spaced above the chamber bottom wall 72. The branch wall 84 causes the netting 68 to be bunched close together near the evaporator sump 74. Although natural circulation can be used, a blower 108 is preferably employed which causes air to flow from the bottom of the condenser coil through the path 105 and up through the netting where it meets the heated water. The saturated air passes through the opening 82 into the cooling section 112 and fresh water precipitates into the sump 109. Instead of the single opening 82, a perforated plate or one with horizontal or vertical slots or a louvered plate may be interposed. Doors 116 and 118 are provided to admit fresh air into the system. Horizontal baffles may be slotted with the net curtains to obtain a multipass cross-counter flow and the netting may support a biological culture.
Patent GB-1253676-A (GB)
Title: Improvements in or relating to combustibles analyzers
IPC: G01N25/22
Filed: 1968-11-15
Abstract: 1,253,676. Electro-chemical cells. BAILEY METER CO. Nov. 15, 1968 [Nov. 15, 1967J, No.54383/68. Heading G1N. In a device for determining the oxygen content of a gas containing combustibles, the gas, which may be mixed with an oxidant gas of known oxygen content, is passed into a tube 22 of solid electrolyte e.g. zirconium oxide, via tube 12, and a reference gas is passed outside the tube via passage 44 between adapter 34 and housing 32. A porous bond electrode 24 e.g. of platinum is bonded at one end to the outside of the tube 22, and a tubular electrode 26 also of platinum is bonded on the inner surface of the tube 22. The temperature in the region of the outer electrode 24 is maintained constant by a thermostat 41, 43, 42, this temperature being sufficient to cause combustion of the gas by inner electrode 26. A platinum lead 25 extends from electrode 24 to a contacter 50 and a tab 27 extends outside the tube from electrode 26 to a contacter 52. The output from these contacters is applied to a meter which gives an indication of the amount of residual oxygen in the gas after combustion and hence the amount of combustibles in the gas. The tube 12  is preferably a ceramic coated with a layer of platinum, and the flow of gas in tube 12 is regulated.
Patent GB-1147297-A (GB)
Title: Anthraquinone reactive dyestuffs
Inventor: HARMS WOLFGANG
IPC: C09B62/004
Filed: 1967-12-01
Abstract: 1,147,297. Anthraquinone dyes. FARBENFABRIKEN BAYER A.G. 1 Dec., 1967 [7 Dec., 1966], No. 54744/67. Heading C4P. The invention comprises compounds of the formula where A is a sulpho-group containing arylene or aralkylene radical or a sulphatoalkylene radical; Q is OH, OCH 3 , OC 2 H 5 , NH 2 , NHA, SO 3 H or halogen, R is H or alkyl of 1-4 carbon atoms, X is a reactive group which is linked to the amino group either directly or via a further bridge member and p is 0 or 1. The compounds are prepared from compounds of the formula by converting the NHR group into the NRX group in known manner.