baber/WOPTO huggingface dataset:
Patent GB-1378979-A (GB)
Title: Stabilization of synthetic polymers
IPC: C08L77/00
Filed: 1972-11-24
Abstract: 1378979 Stabilizing polymers SANKYO CO Ltd 24 Nov 1972 [24 Nov 1971] 54442/72 Heading C3P and C3R Synthetic polymers are stabilized with at least one compound of formula where m and n are 4 or 5, and R<SP>1</SP> and R<SP>2</SP> are carboxyl groups or functional derivatives thereof. Specified polymers include olefin, diene and styrene polymers; vinyl and vinylidene chloride polymers; polyacetals, e.g. polyoxymethylene and polyoxyethylene; polyesters e.g. polyethylene terephthalate; polyamides, e.g. nylon-6, -6,6 and -6,10; or polyurethane, The groups R<SP>1</SP> and R<SP>2</SP> may be carboxyl or metal salts thereof, cyano, carbamoyl or N-. alkyl derivatives thereof, alkoxycarbonyl or aryloxycarbonyl. The compositions may contain fillers, pigments and conventional stabilizers, e.g. phenols, thiodipropionates, organic phosphites, benzotriazoles, salicylates and benzophenones. Examples describe the stabilizing of (1) polypropylene, (2) polyethylene, (3) nylon-6 and (4) polycaprolactone based polyurethane with 1,1<SP>1</SP>-dicyanodicyclohexylamine, 1,1<SP>1</SP>-bismethoxycarbonyldicyclohexylamine' and 1,1<SP>1</SP>-dicyanodicyclopentylamine; and of (5) polyvinyl chloride plasticized with dioctyl phthalate with the calcium and stannic salts of dicyclohexylamine-1,1<SP>1</SP>-dicarboxylic acid.
Patent GB-1166511-A (GB)
Title: Electrical Control System
IPC: G05B19/41
Filed: 1966-12-06
Abstract: 1,166,511. Programmed electric control; time control of electric circuits. TORRINGTON MFG. CO. Dec.6, 1966 [Dec. 29, 1965], No.54470/66. Headings G3N and G3T. A system for simulating a programme set by one or more cams comprises a pulse generator 30 producing plural frequency square pulses by means of a driven disc having equidistant holes in concentric circles admitting light to a number of photocells, which pulses are selected by gates 46 in a pre-arranged successive pattern to give a rise, fall or constant condition, which is passed to a directing unit 44 controlling a stepping motor 38 coupled to a controlled element 39. Each channel 36 includes a multiposition selector switch 52. The pulse frequencies may be varied synchronously and proportionally by drive motor speed adjustment which is retroactively controlled. The timing period is set by binary counters 54, 56, tapped to one of the pulse outputs 32, which period is subdivided by count selectors 64, 66 and gated by a coincidence circuit 68 which control the gates 46. The element 39 may be driven in co-ordinate directions by a plurality of identical channels, one for each direction.
Patent GB-1087019-A (GB)
Title: Organotin compounds
IPC: C07F7/22
Filed: 1965-12-23
Abstract: The invention comprises compounds of the formula <FORM:1087019/C2/1> wherein X is a halide ion and R11 is a C1-C6 alkyl group and either (a) R1 is a long-chain fatty hydrocarbon having at least 12 carbon atoms, R111 is -(CH2CH2O)yH and x + y is about 10; or (b) R1 is a long-chain hydrocarbon having at least 12 carbon atoms, R111 is (CH2CH2O)zH and x + z is about 50; or (c) R1 is a long-chain fatty hydrocarbon having at least 12 carbon atoms R111 has the Formula (II) and x + m + n is about 10; or (d) R1 is a long-chain fatty hydrocarbon having at least 12 carbon atoms, R111 has the Formula (III) and x + p + q is about 10; or (e) R1 is -(CH2OCH2O)nH, R111 has the Formula (IV), x + r + s is about 10 and R is a long-chain fatty hydrocarbon having at least 12 carbon atoms.  <FORM:1087019/C2/2> <FORM:1087019/C2/3> <FORM:1087019/C2/4> <FORM:1087019/C2/5> The trialkyl tin quaternary ammonium compounds of the invention are prepared by reacting one or two moles of a trialkyl tin halide of the formula (R11)3SnX with one mole of an amine of the Formula (V) by refluxing at 120-150 DEG  C.  Preferably R11 is -C3H7 and R1 is -C18H37 or a tallow hydrocarbon, or RIV is a tallow hydrocarbon.  The compounds may be used as germides or fungicides (see Division A5).ALSO:Compounds of the formula <FORM:1087019/A5-A6/1> (see Division C2) wherein X is a halide ion and R\yF is a C1-C6 alkyl group and either (a) R\sv is a long chain hydrocarbon having at least 12 carbon atoms, R\yG is -(CH2CH2O)yH and x and y is about 10; or (b) R\sv is as above R\yG is -(CH2CH2O)zH and x + 2 is about 50; or (c) R\sv is as above, R\yG has the formula <FORM:1087019/A5-A6/2> and x + m + n is about 10; or (d) R\sv is as above, R\yG has the formula <FORM:1087019/A5-A6/3> and x + p + q is about 10; or (e) R\sv is -(CH2OCH2O)rH, R\yG has the formula <FORM:1087019/A5-A6/4> x + r + s is about 10 and Riv is a long chain hydrocarbon having at least 12 carbon atoms, may be used as germicides and fungicides, especially in the treatment of wood.
Patent GB-1461906-A (GB)
Title: Rotor and stator assemblies of an electromagnetic actuator
IPC: H01F7/14
Filed: 1972-12-01
Abstract: 1461906 Electromagnets POST OFFICE 19 Feb 1974 [1 Dec 1972] 55627/72 Heading H1P A rotary electromagnetic actuator (Fig. 1) comprises a rotary armature 18 of low reluctance magnetizable material with sector-shaped polepieces 20, 22 secured by pin 26 to shaft 24 rotating within a stator 12 of laminated or sintered magnetizable material having inwardly facing mutually orthogonal polepieces 28, 30, 32, 34 bearing windings 38; the collinear pairs of polepieces being selectively energizable. Stator end-plates 14 moulded of synthetic plastic have silver steel plain bearings 40 supporting the shaft and circular bosses 42 coaxial therewith, having axial sectoral integral projections 44, 46. The inner faces of the stator poles are coaxial with the outer surfaces of the projections and partially adjoin them to centre the bearings and enable limited rotation of the rotor with a small clearance from the polepieces. A latch 16 at one end of the assembly comprises a diametrical member 48 pinned to the shaft with symmetrical radial stops 52 resiliently connected by leaf-springs 56 to other stops 54 diametrically projecting at less spacing from end-plate 14. Thus the rotor is biased to either limiting position with a central unstable turnover position, so that it is positionable against the resilience of the springs in either position by energization of the windings on poles 28, 32 or 30, 34 to partially overlap either pair of poles by an amount dependent on the circumferential lengths of elements 44, 46. Holes of the end-plates receive terminals 62 for the windings, and the assembly of rotor, stator, and end-plates is secured by longitudinal bolts (not shown) through holes 58. The latching means may comprise a cam and resilient followers, or may be dispensed with, and the end-plates may be of cast or machined aluminium; while the armature may be induction brazed or silver soldered to the shaft. Plural polepieces may be used, and these may be asymmetric of the shaft. The device is stated to be applicable to a letter sorting apparatus. Specification 1,461,907 is referred to.
Patent GB-1389549-A (GB)
Title: Earthed plug with an earth leakage circuit breaker
IPC: H01R13/713
Filed: 1972-12-07
Abstract: 1389549 Electric circuit-breakers FELTEN & GUILLEAUME SCHALTANLAGEN GmbH 7 Dec 1972 [31 Jan 1972] 56478/72 Heading H1N An earthed plug incorporating an earth leakage circuit-breaker has a cylindrical end 2 at the mains side and is also provided with internal recesses accommodating a differential current transformer and with chambers 4 accommodating further circuit breaker components such as contacts 5, trip means 6 and latch 7. The main body 1 of the plug is formed of an upper part 14 and lower part 15 with surfaces 16 therebetween which are horizontal in the normal operative position of the plug. The earth contact 17 of the plug is a retaining clip engaging in recesses in the parts 14, 15 at the cylindrical end 2. The differential current transformer has twice as many turns in a primary winding in the earth continuity circuit as there are in any other primary winding and the earth continuity circuit includes contacts and a threshold controlled resistor 9.
Patent GB-1336734-A (GB)
Title: Electric circuit breakers
IPC: H01H33/70
Filed: 1970-11-27
Abstract: 1336734 Gas blast switches MAGRINI FABBRICHE RIUNITE MAGRINI SCARPA E MAGNANO MSM SpA 27 Nov 1970 [27  Nov 1969] 56507/70 Heading H1N An insulating blast nozzle surrounding, and movable with, the moving contact 3 of a compressed gas circuit-breaker has, internally, a convergent portion 1, a cylindrical portion 5 and a divergent portion 9, a plurality of tapered passages 6 extending from the cylindrical portion through the wall of the nozzle to reduce the pressure within the nozzle and the outside of the nozzle being formed (19) to overhang the outlets of the passage so as to deflect gases leaving by the passages in the direction of the main gas flow 7; the passages 6 extend at an acute angle, preferably between 45 and 65 degrees, to the main gas flow 7. The overhang 19 may be extended to the tip of the nozzle to form an annular passage or the individual passages may be extended to the tip. When the gases strike the overhang 19 they urge the nozzle to the right to assist the opening operation. The inside of portion 9 is formed with a plurality of annular corrugations.
Patent GB-1339049-A (GB)
Title: Hoisting apparatus employing unitary clutch and brake assembly
IPC: B66D5/00
Filed: 1971-12-06
Abstract: 1339049 Clutch/brake combinations; slipping clutches; ratchet clutches E A PETERSON 6 Dec 1971 [13 May 1970] 56585/71 Headings F2C and F2L [Also in Division B8] A hoisting cable drum 35 is coupled with a continuously slipping clutch 57 which can either transmit drive to the drum 35 in a hauling in direction through an overrunning one way clutch 66 when a controlled tension in the cable 69 is required inrespective of the normal drive to the drum 35, or can apply a braking action to the drum 35 during an out-haul operation, the clutch 66 isolating the clutch 57 from the drum 35 during in-haul operation of the drum when a drivable housing 58 of the clutch 57 is held stationary by stops 63, 64. The normal drive for the drum 35 is from an input shaft 13 common to two motors 11, 12, through different powered chain drives 22 or 24 depending on which is clutched to a shaft 26, through chain drives 31, 41 and through either a high or a low speed clutch 38, 32 which are selectively air operated. The housing 58 of the slipping clutch 57 is drivable when required by a chain 56 connected to the shaft 26 through a clutch 51, and is held stationary during drum in-haul or when the braking action is required during drum out-haul, by toothed stops 63, 64 hydraulically actuated to engage a toothed periphery 65 of the housing.  The slipping clutch comprises a hub 112 keyed to the shaft 59 and carrying a friction disc 110 splined to the hub, the housing 58 being rotatably mounted on the shaft 59 and carrying friction plates 108, 115 engaging a friction disc 110 therebetween. The pressure between the friction disc 110 and plates 108, 115 is adjustable by a pneumatically expandable element 113, springs 114 releasing the contact supplied via a coupling 62 to annular channels 109, 116 adjacent the friction plates 108, 115.
Patent GB-1237104-A (GB)
Title: Automatic batch weigher
IPC: B01F15/04
Filed: 1968-07-25
Abstract: 1,237,104. Batch weighing systems. HOWE RICHARDSON SCALE CO. July 25, 1968 [Aug. 3, 1967], No. 56847/70. Divided out of 1, 237, 101. Heading G1N. The description is the same as that of Specification 1, 237, 101 but the claims relate to means for indicating when a batch is over- or under-weight, said means being on a removable printed circuit board.
Patent GB-1280860-A (GB)
Title: Switching device for a double operation telegraphy subscriber
IPC: H04L12/00
Filed: 1969-11-20
Abstract: 1280860 Telegraphic exchanges COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATION CIT-ALCATEL 20 Nov 1969 [28 Nov 1968 31 Oct 1969] 56919/69 Heading H4P To permit a subscriber to communicate at one of two speeds e.g. 50 bauds or 200 bauds over a single channel, a discriminating switch unit is employed at exchange terminals to connect the appropriate equipment and charge assessing device. The arrangement permits the use of only one call number and is connected to subscriber selector switches and has only an identification circuit and a reading circuit. The appropriate calling signal from the subscribers equipment causes the subscribers number only to be recorded in normal speed communication and in addition a signal to be provided to a route indicator and the charge assessing circuit for high speed. The discrimination circuit may be energized solely when the call indicating high speed communication is received.  In the drawing suffix 1 is applicable to 50bd messages and suffix 2 for 200bd messages. Line equipment EL connected to the subscriber over lines 1A, 1B has a blocking relay (BL) a connection relay (CO), also a call relay AP energizable on a 50bd call through a discrimination unit DA, the latter additionally energizing a relay D.C. on a 200bd call through a diode D1. Output lines A, B, V, MF, of equipment EL are connected to corresponding vertical steps of subscribers selector switch AB2 which carry an identification level S. 50bd call from sub.-A positive signal on line 1A causes relay AP to be energized and normally made contacts dc cause earthed line ID to be connected to line 2ID1. 200bd call from sub.-A positive signal of 80 m. sec. on line IA followed by a negative pulse 40 m. sec. causes relays AP and DC to be energized hence line 2ID2 is connected to earth and subs. lines 1C, 1D are also earthed through contacts dc. To call sub. on 50bd sub. disengaged.-Contacts co, bl are in position shown hence lines L1, R1 from a complete loop from giving an indication that subscribers equipment is free. 50bd sub. engaged.-Relay CO or BL are energized hence line L1 is connected to T1 causing periodic energization and release of subscribers "engaged" relay. To call sub. on 200bd, sub. disengaged.-An earth (not shown) on line L2 causes through diode D2 energization of relay DC which is held by its own contacts and closing contacts dc which places an earth via diode D3 on line R2, and a loop on lines 1C, 1D. Sub. engaged 200bd.-Line L2 will be connected through contacts co, bl to line T2 causing periodic energization and release of subscribers "engaged" relay.
Patent GB-1401879-A (GB)
Title: Sealing devices for sealing open ends of ducts
IPC: F28F11/04
Filed: 1972-12-12
Abstract: 1401879 Tube sealing means SOC ANON DES USINES CHAUSSON 12 Dec 1972 [6 Jan 1972] 57359/72 Heading F2P A cap for sealing the end of a tube 22 comprises a distortable sealing member 19 for fitting inside the end of tube 22 (or over the end and around the outside-Fig. 4, not shown), and a piston 8 movable against a spring 10 and normally maintained by said spring in a position in which it closes a port 2 in a cylinder 3. In operation the member 19 is placed in the end of the tube 22 and the cylinder 3 pressed down by hand so that the collar 18 engages a collar 15 on stem portion 17 so as relatively to lift the piston 8 against spring 10 to uncover the port 2. Fluid under pressure is connected to port 2 and further lifts the piston 10 so that the sealing member 19 is distorted by the washer 20 into engagement with the tube 22 so as to seal the end thereof. In the Fig. 4 embodiment (not shown) the piston is first pressed downward by a hand operated knob (36) and fluid pressure is then applied to the top of the piston (8 1 ) so as to distort the sealing member (19 2 ) into engagement with the outside of the tubular body 38. Instead of the collar 18 there may be a flanged plug (24) which fits inside the tubular body (22 1 ) Fig. 2 (not shown). The device may be provided with a flexible extension coupling (29), (Fig. 3, not shown), for a tubular body which is otherwise inaccessible.
Patent GB-1422839-A (GB)
Title: Nuclear reactor installation
IPC: F16J13/00
Filed: 1973-12-13
Abstract: 1422839 Nuclear reactors SIEMENS AG 13 Dec 1973 [13 Dec 1972] 57878/73 Heading G6C  A nuclear reactor installation including a reactor pressure vessel 1 having a separable cover la, comprises a concrete structure surrounding the vessel, the structure being constituted, in the region of the cover la, by a number of segments 9 which abut supports 8 bearing on the cover la through the agency of an annular member 7. Each segment 9, which is L-shaped in a vertical plane along its radius, is supported on the upper edge 3 of the reactor pit 2 which, together with floor portions 4, 5 and an outer cylindrical portion 6, forms a rigid part of the concrete structure. At its outer region, remote from the edge 3, each segment 9 abuts the portion 6 at a joint 10 which permits the segment to pivot leading to opening of the joint at edge 3. Each of the four segments 9 (which are arranged in pairs on opposite sides of the vessel 1) is penetrated by a vertical column 13 rigidly connected to the concrete structure forming pit 2; the columns 13 carry beams 12 for supporting ancillary equipment such as a fuelling machine. Apertures in the segments 9 are provided to accommodate steam generators 15 each of which has explosion-proof, segmental shielding surrounding it; the shielding 20 above the segments is tied to the segments by cables and steel caps 21, while the shielding 22 below the segments is surrounded by prestressing cables 16. Coolant circulating pumps 14 are disposed beneath the segments 9. An explosionproof shield 18 is provided around the main coolant duct leading to a steam generator 15, in the arrangement shown at the right hand side of Fig. 2. An abutment 19 limits movement of the steam generator in the event of fracture of a main coolant conduit. In an alternative arrangement shown at the lefthand side of Fig. 2, the conduit is arranged in a separate chamber below the steam generator and includes the shield 18. The chamber may be provided by a bore 17 in the floor 4.
Patent GB-1362109-A (GB)
Title: Valve-seating rings for internal combustion engines
IPC: F02F1/42
Filed: 1972-12-18
Abstract: 1362109 Valve seating rings DAIMLERBENZ A G 18 Dec 1972 [23 Dec 1971] 58360/72 Heading F1B [Also in Divisions B3 and F2] A valve seating ring 4 for fitting in the cylinder head of an I. C. engine is provided with a selftapping screwthread 5, the outside diameter of which decreases in the direction of screwing in of the ring. A circumferential groove 5 is provided for receiving chips as the ring is screwed in. The ring has axially extending cutting edges 7 and grooves 8 for engagement by a tool to effect screwing in.
Patent GB-1374632-A (GB)
Title: Cutter assembly for a mower
IPC: A01D34/535
Filed: 1971-12-21
Abstract: 1374632 Mowers MOTT CORP 21 Dec 1971 [28 Dec 1970] 59487/71 Heading A1F A member which can be attached to a mower shaft to carry the blade is arranged to be pivotable about a diameter of the shaft. The blade 22 is bifurcated to form a pair of resilient fingers 48 Fig. 4 which engage a non- circular hole in the blade-carrying member, as described in Specification 1374110. In each embodiment the blade-carrying members are arranged on the mower shaft in diametrically opposed pairs, and consist each of a centre portion in which is cut the non-circular hole and a pair of arms which embrace the shaft. As seen in Figure 4 the arms 18 of the bladecarrying member 16 are secured to the mower shaft 10 by a pin 26 which passes through a diametral hole in the shaft and bears a cutter pin 32 at its end. Two such members 16 are held by one pin 26. Each member 16 can pivot about the pin 26 until a tab 34 on its centre portion makes contact with the shaft 10. In the embodiment of Figure 5 (not shown) the blade-carrying members are similarly secured, but their shape results in their centre portions being offset with respect to each other. In the embodiment of Figure 6 the arms 82 of the blade-carrying member 80 are resilient, and their ends 88 are held in diametrically opposed holes 87 in the shaft 81. The members 80 are flat, and the holes 87 large enough to accommodate the ends of the opposed pairs of members 80 and steel allow pivoting. The embodiment of figures 9 and 10 (not shown) is identical, except that the ends of the arms are slightly bent out of the plane of the rest of the member, to allow the centre portions of opposed pairs of members to lie in the same plane, thus maintaining dynamic balance. As seen in Figure 11 the shaft 122 has pairs of diametral holes 134, 136 at right angles to each other; the blade-carrying member 120, which is resilient, is shaped as shown; it can be fitted by being knocked onto the shaft with a hammer, and can be prized off the shaft using a screw driver.
Patent GB-1246739-A (GB)
Title: Improvements in or relating to methods of making germanium semiconductor devices
IPC: H01L29/00
Filed: 1969-12-22
Abstract: 1,246,739. Etching. MATSUSHITA ELECTRONICS CORP. 22 Dec., 1969 [27 Dec., 1968; 30 Dec., 1968], No. 62303/69. Heading B6J. [Also in Division H1] In a method of etching a germanium body to form mesas on its surface a silicon dioxide masking film 3 is employed. An area of silicon dioxide film 3 is formed by thermal decomposition of organo-oxysilane and photolithography over those areas of the surface of the germanium body 1 which are destined to become mesas, after which the body is etched chemically or electrolytically to produce the mesas. In the chemical etching process hydrogen peroxide solution of 10-30% concentration by weight at a temperature of between 50 and 95 C. is employed. The depth of etching may be monitored by measurement of the extent of side etching, which proceeds under these conditions at the same rate as vertical etching; the area of silicon dioxide mask initially applied making allowance for this reduction in area by side etching. In the electrolytic etching process the germanium body is fixed to a carbon anode in an etching bath with a platinum cathode in a sodium hydroxide solution of 2-20% concentration by weight and a current of 0À1-1 amp. per cm.<SP>2</SP> is caused to flow, the temperature being below 30 C. The thickness of the silicon dioxide masking film in the above methods should be between 1000  and 7000 .
Patent GB-1301681-A (GB)
IPC: C08G73/14
Filed: 1969-12-30
Abstract: 1301681 Polyamide-imide filaments SOC RHODIACETA 30 Dec 1969 [30 Dec 1968] 63394/69 Heading B5B [Also in Division C3] Polamide-imides of inherent viscosity 0À58 to 1À3 (0À5 wt. % in N-methyl pyrrolidone at 25 C.) comprising structural units -NH-Ar 2 - NH-CO-Ar 1 -CO- and and optionally and substantially free from inter-chain linkages formed by a condensation reaction apart from those indicated by the formulµ, are dissolved in an anhydrous polar solvent to provide spinnable solutions. In the formulae Ar 1  is where n is O or 1 and X is -O-, -SO 2 - or -CH 2 -; Ar 2  is a divalent aromatic radical and Ar 3  is a tetravalent aromatic radical. The solvent contains less than 3000 p.p.m. residual water and may be N-methyl pyrrolidone, dimethyl formamide or acetamide or, hexamethylphosphonyltriamide. The solvent may be prepared by reacting a diisocyanate Ar 1  (NCO) 2  a diacid Ar 2  (COOH) 2  and a benzene tricarboxylic acid anhydride, optionally with an aromatic tetracarboxylic acid dianhydride in the solvent, less than 5 mol. % of the isocyanate may be replaced by an aliphatic isocyanate and 1À5 to 3 mol. % of a triiscyanate e.g. triisocyanatotriphenyl thiophosphate may be present. Examples illustrate wet and dry spinning of the solutions and stretching of the fibres. Thus, in Example 3, a spinning solution is wetspun into a coagulating bath containing equal parts by weight of water and N-methyl pyrrolidone. In examples 7, 8 and 9 spinning solutions are dry-spun at 108-112 C. and the filaments obtained treated in vacuo at 240- 250 C. in an oven for 6 hours and stretched at draw ratios of 3À5-3À8 at 340-360 C. Reference has been directed by the Comptroller to Specification 1,009,956