baber/WOPTO huggingface dataset:
Patent GB-1079639-A (GB)
Title: Improvements in centrifugal yarn spinning mechanism
IPC: D01H7/84
Filed: 1965-12-13
Abstract: 1,079,639. Centrifugal spinning; doffing. BREVETS AERO - MECANIQUES S.A. Dec. 13, 1965 [Dec. 24, 1964], No. 52880/65. Heading DID. In a pot spinning device a full cake 12 is removed from the pot by an expansible cake holder 13 (see also Fig. 1 not shown) which is rotatable mounted on a vertically movable support 14. When the cake is nearly filled the pot is slowed and support 14 is lifted by a pneumatic device 24, 28, so that the cake holder moves into the pot and a clutch surface 16a thereon engages a clutch surface 1a in the pot so that the cake holder is rotated. A resilient, spirally wound sheet 17 mounted on the spool holder expands centrifugally to engage the inside of the cake. In addition a resilient, air tight sleeve 18 is connected to the air supply to be expanded and engage the inside of sheet 17. When the pot stops the support 14 and the cake holder 13 are lowered to remove the cake from the pot. The support 14 is rotated about a vertical axis to move the full cake to an unwinding position and an empty cake holder to a position beneath the pot, the sleeve 18 on the empty holder being deflated during the rotation.
Patent GB-1521980-A (GB)
Title: Speedometer and odometer apparatus
IPC: G01C22/00
Filed: 1975-12-30
Abstract: 1521980 Speedometers JAEGER 30 Dec 1975 [30 Dec 1974] 53189/75 Heading G1K A speedometer and odometer instrument comprises a drive input shaft 1, an eddy current speedometer mechanism 6-10, and an odometer assembly including main and trip odometers 25, 29, Fig. 10, and a zero resetting means 34-39, Fig. 3, for the trip odometer, the components being mounted in a frame comprising two separable parts 2, 5, the lower part 2 carrying the drive input shaft 1 and the upper part 5 enclosing the odometer assembly, with the speedometer mechanism held between the two frame parts.  The speedometer comprises a disc magnet 6 secured to the input shaft 1 to rotate within a drag cup 8 secured to a pointer shaft 10. A spiral spring 45 resists rotation of the cup 8 when the magnet 6 is rotated, and is connected to the shaft 10 by a collar 46 which extends into a cup 47 of the frame 5 containing a damping liquid. The outer end of the spring 45 is secured to the frame 5 by a peg 48. A yoke 13, Figs. 1 and 4, surrounding the drag cup 8 carries a resilient bar 12 which passes below a raised cross-bar portion 14 of the yoke 13. The shaft 24 of the main odometer 25 is driven from a gear 67 integral with the input shaft 1 via a shaft 21, Fig. 6, and a shaft 22, Fig. 9. Resilient combs 33, Fig. 10, bear on the number wheels of the odometers to resist rotation thereof. To prevent reverse drive of the odometers, the shaft 21 is axially movable so that when the input shaft 1 rotates in a reverse direction the shaft 21 moves against a return spring 41 to disengage a worm 40 on the shaft 21 from a worm wheel on the shaft 22. The shafts 24, 31 of odometers 25, 29 are coupled together by gears 26, 27, 30. The trip odometer reset mechanism, Fig. 3, comprises a shaft 34 axially movable against a spring 36 to bring a gear 38 thereon into mesh with a gear 39 on the odometer shaft 31.
Patent GB-1492403-A (GB)
Title: Method and apparatus for chopping glass fibres
IPC: D01G1/04
Filed: 1974-12-10
Abstract: 1492403 Cutting glass fibres PPG INDUSTRIES Inc 10 Dec 1974 [11 Dec 1973] 53254/74 Heading ClM In apparatus for cutting glass fibres which includes a cot roll 11 having a resilient surface and a cutter roll 14 provided with a plurality of cutting blades 13, each cutting blade is mounted in a groove in the roll 14 the grooves having a width 0À002 inch to 0À004 inch greater than the width of that part of the blade located within the groove. The fibres to be cut are drawn directly from a bushing 2, coated with size by an applicator 4, 5, consolidated into strands by a device 8, and attenuated by the cot roll 11 and a knurled roll 10 in contact therewith. The rolls 10 and 11 are free wheeling and are driven by virtue of the contact between the cot roll and the cutter roll, the latter being driven by an electric motor. The cut fibres are removed by a vibrating conveyer system 18, 19 and dried by infra-red lamps 20.
Patent GB-1497280-A (GB)
Title: Agglomerating suspended particulate material in aqueous systems
IPC: C02F1/52
Filed: 1974-12-10
Abstract: 1497280 Flocculating aqueous suspensions ASSOCIATED PORTLAND CEMENT MFRS Ltd 2 Dec 1975 [10 Dec 1974] 53309/74 Heading C1C [Also in Division D2] An aqueous system containing suspended particulate matter (e.g. mineral fillers used in papermaking) is treated to agglomerate the suspended matter, by adding an anionic polymeric flocculant and at least one counteracting anionic deflocculant, the activity of the latter being reduced by adding to the system an aqueous solution containing cations having a valency greater than 1. The agglomerates so obtained are re-used in papermaking. Sewage may also be treated. The mineral filler may be TiO 2 , CaCO 3  or clay. Specified flocculants are polyacrylamides. Specified deflocculants are polyacrylates, polyphosphates, carboxylated polyphosphates, silicates and alkali-solubilized lactic casein. Specified cation-containing solutions are hard water or aqueous solutions of Ca or Mg salts.
Patent GB-1148025-A (GB)
Title: Power driven electronically controlled tool
Inventor: BRISKMAN ARTHUR
IPC: B26B15/00
Filed: 1967-11-27
Abstract: 1,148,025. Cutting tools. A. BRISKMAN. 27 Nov., 1967 [9 March, 1967], No. 53925/67. Heading B4B. A power-driven electronically controlled tool comprises a stationary member, e.g. pinking blade 12 secured to a support 11 and engageable by a pivotally-mounted movable member, e.g. pinking blade 14 driven from an electric motor 28 by means of worm 25 and wormwheel 20 and a disc 21 having a pin 23 engaging a slot 17 in an extension 16 of the blade, the movements of the blade 14 being controlled by electronic means comprising a power pack 30. The disc 21 has a cam-like protrusion 22 to operate a microswitch 31. The power pack is connected to an A.C. source and comprises a transformer 32, Fig. 7, a rectifier 33, a relay 34, a diode 35, a resistor 36, and a capacitor 46 and potentiometer 47 for time cycle control of the intermittent or oscillating operation of the blade 14. The capacitor 46 and potentiometer 47 may be replaced by selective capacitors (37), (38) and (39), Fig. 9 (not shown), of different values which may be switched by selector switch (40). The pinking blades may be replaced by scalloping shear blades, Fig. 4 (not shown), scissors blades, Fig. 5 (not shown), or by sheet metal snips, Fig. 6 (not shown).
Patent GB-1277158-A (GB)
Title: Data transmission system
Inventor: TANG DONALD TAO-NAN
IPC: H04L25/48
Filed: 1970-11-13
Abstract: 1277158 Data transmission INTERNATIONAL BUSINESS MACHINES CORP 13 Nov 1970 [30 Dec 1969] 54015/70 Heading H4P A data transmission system uses correlation encoding with resulting increase in the number of signal value levels. In Fig. 2, an input signal train A(D)=  a 0  + a 1  + D + a 2 D<SP>2</SP> + ... (where D is a time delay operator) where each signal can have any of m levels, is preceded at 10 (to prevent propagation of a chain of errors from a single error in the received transmission) by dividing by G(D)= g 0  + g 1 D + g 2 D<SP>5</SP> + ... and taking the resulting levels mod m, to give a train B(D)=b 0  + b 1 D + b 2 D<SP>2</SP> + .... This is correlatively encoded, 12, by multiplying by G(D) to give C(D)=c 0  + c 1 D + c 2 D<SP>2</SP> + ... in which each level can have any of M (greater than m) levels. C(D) is transmitted over a channel 14 and the received signal C<SP>1</SP>(D) decoded, 18, by dividing by G(D) to give B<SP>1</SP>(D) which in the absence of error equals B(D) and so has only m levels. If there are more than m levels, a level detector 22 (two thresholders feeding an OR gate) produces an error signal to give a warning or cause retransmission and inhibition of a decoder 20 which otherwise multiplies B<SP>1</SP>(D) by G(D) and takes the resulting levels mod m to give A<SP>1</SP>(D), which is equal to A(D) in the absence of errors. A modified system combines 10 and 12 into a unitary encoder, combines 18, 20, 22 into a unitary decoder and precedes the latter with a level splitter which standardizes the received levels to their nominal values after detecting them with thresholders. Fig. 4 shows the unitary encoder, assuming G(D)=g 0  + g 1 D + g 2 D<SP>2</SP> + ... 5  + g N D<SP>N</SP>, and is self-explanatory, the notation being as before. The unitary decoder is like Fig. 4 except that the mod m detector 34 follows the adder 46, the result from multiplier 36 is not taken mod m, and the output from this multiplier is also fed to a level detector to produce the error signal. If G(D) is 1 - D<SP>2</SP>, then b k =a k + b k-2 , mod m, and c k  = b k  - b k-2 . A(D) may have m = 3 and result from a preliminary 2-to-3 level transformation (no details).
Patent GB-1277489-A (GB)
Title: Improvements in or relating to prestressed structures
Inventor: THORPE WALTER
IPC: E04C5/08
Filed: 1969-11-08
Abstract: 1277489 Deflecting means for prestressing elements SIMON-CARVES Ltd 7 Dec 1970 [8 Nov 1969] 54803/69 Heading E1W In the formation of a prestressed structure the tendon bar or bars 10 are passed through a rectangular open ended metal box structure 12 embedded in a concrete membrane 11a of a concrete strucure 11 and bear against a saddle shaped recess 16 in a block 13 which is mounted in the box 12 to slide longitudinally of the bars 10 by means of rails 15 engaging in grooves 14. During tensioning of the bars 10 the blocks slide in the box 12 preventing abraision to and reducing friction at the deflection region of the bars. The channels 14 or the rails 15 may be coated with P.T.F.E. and may be curved or inclined. Block engaging side plates of the box 12 only may be embedded the other two sides being formed by concrete.
Patent GB-549219-A (GB)
Abstract: 549,219. Seats. LEABANK CHAIRS, Ltd., and COUSINS, R. J. May 9, 1941. No. 6053. [Class 52 (ii)] In a chair wherein the frame members 3 carrying. the back-rest 12 are connected to the seat and lower side rails 4, by bolts or screws 11, the legs 2, back and front rails 5, 13 and the back rest carriers 3 are formed of timber battens of the same section. The lower side rails 4 may also be formed of timber battens of the same section. The chair may be made to fold by providing a slotted connection between the lower slide rails 4 and the carriers 3.
Patent GB-1162699-A (GB)
Title: Improvements in or relating to Plants for Purifying Residual Waters
IPC: C02F3/16
Filed: 1966-12-09
Abstract: 1,162,699. Aerating liquids mechanically. SOC. DEGREMONT. 9 Dec., 1966 [4 April, 1966], No. 55272/66. Heading B1C. [Also in Division C1] An aeration rotor for sewage has a hub with radial blades positioned for half of the blades to be immersed. It consists of a frustoconical portion 15 and a cylindrical portion 16 which are hollow and allow it to float. The edge portion b c of the blades 20 is parallel to the divergent portion of the uptake 14. Adjacent each trailing edge of the blades is a tube 18 which'has an air intake 19 which may be valve adjusted.
Patent GB-1214007-A (GB)
Title: Process for activating plates for alkaline accumulators
Inventor: SCHNEIDER FRIEDRICH AUGUST
IPC: H01M4/32
Filed: 1967-12-08
Abstract: 1,214,007. Nickel accumulator plates. INTERNATIONAL NICKEL Ltd. 14 Nov., 1968 [8 Dec., 1967], No. 55989/67. Heading H1B. [Also in Division C7] Nickel hydroxide is formed on a porous sintered nickel plaque by anodic oxidation in two stages in the first of which the electrolyte is a solution of sodium bicarbonate and the current density is so high that passivation of the nickel would occur before the attainment of maximum capacity if the oxidation were continued and in the second of which the plaque is subjected to preferably no more than six successive cycles of charge and discharge in a solution of an alkali metal carbonate preferably K 2 CO 3  and the current density in the charge in any cycle should preferably not exceed that in the previous cycle by more than 15%. The first stage is preferably continued until the plaque attains from 0À4 to 0À5 times its estimated final capacity, and the current density in the first cycle of the second stage in A/dm.<SP>2</SP> is preferably numerically equal to the capacity in Ah/dm.<SP>2</SP> attained by the plaque in the first stage.
Patent GB-1326599-A (GB)
Title: Tyre building apparatus
IPC: B29D30/24
Filed: 1970-11-04
Abstract: 1326599 Tyre switching drums GOODYEAR TIRE & RUBBER CO 4 Nov 1970 [28 Nov 1969] 56371/72 Divided out of 1326598 Heading B7C The subject-matter of this specification is identical with that of parent Specification 1,326,598, but the claims are directed to a tyre building drum including a cylindrical sleeve mounted on two cylindrical members and supported at its centre by support means the elements of which are radially retractible to allow the cylindrical members to move towards each other.
Patent GB-1410638-A (GB)
Title: Selection and processing system for signals including frequency  discriminator
IPC: H03D3/00
Filed: 1972-12-07
Abstract: 1410638 AFC systems; active filters; radio navigation INTERNATIONAL STANDARD ELECTRIC CORP 7 Dec 1972 56485/72 Headings H3A H3U and H4D A system comprises a source 3 of signals, e.g. Loran signals and interfering CW, FSK, on-off keying signals within a given frequency band, an oscillator 7, signal selection circuitry 1 for selecting the strongest input signal having a predetermined large duty cycle, a frequency discriminator 6 responsive to the selected signal for varying the oscillator frequency so that it bears a predetermined relationship to that of the selected signal, a frequency converter 33 coupled to the source and the oscillator for shifting the selected signal frequency to lie within the operational band of a signal processor 34, e.g. a notch filter. The system is designed to remove strong interference signals having a duty cycle larger than that of the desired signals by automatically shifting the former to the attenuation band of a notch filter. The signal selection circuitry 1 includes an AGC-pulse reducer circuit 8-11 which passes only the strongest interference signal to a frequency discriminator 6. The discriminator includes a gated phase detector 26 to which signals are applied via two paths 12, 13. The path 13 includes up, down converters 14, 23 controlled by the oscillator 7, a search, lock-on band-pass circuitry 15-22, a limiter and differentiator 25. The path 12 includes a filter 28 providing a phase delay same as that encountered in path 13 and an amplifier 29 whose gain is adjustable to ensure stable operation. In the gated phase detector, 26, signals arriving via .path 12 are gated by pulses derived in the path 13 (and differing in phase substantially, by 180 degrees to provide an output whose amplitude is dependent on the relative phase difference as well as, the input frequency. The phase detector output is integrated at 31 to control the oscillator 7. In the event of input signal failure, the phase detector output is open circuited and the oscillator frequency is maintained at its final value. When the oscillator 7 is swept to its desired frequency, both filters 15, 16 are effective and as lock-on is achieved, the filter 15 is disconnected and only the filter 15 in its second narrower band is effective. In the signal processing circuitry 2, the filter 36 provides an equalizing phase shift for the notch filter 34. The filter 15, 16 (Fig. 3, not shown) may be a 3 pole filter, crystal filter respectively. In the alternative embodiment of Fig. 5 (not shown) only up-converters are provided and the follow-up circuitry operates at the higher frequency.
Patent GB-1286078-A (GB)
Title: An abrupt release electrical coupling
Inventor: AUSTEN HAROLD EDGAR
IPC: H01R13/633
Filed: 1968-11-29
Abstract: 1286078 Two-part couplings CLANG Ltd 27 Nov 1969 [29 Nov 1968] 56818/68 Heading H2E A plug 1 and socket 2 for use in a street lighting column or traffic bollard are mechanically coupled by means of a frangible threaded ring 43 on the plug 1 and which cooperates with an external thread 44 on the socket 2. On impact of a vehicle on the column, the ring 43 breaks and the plug 1 is ejected from the socket 2 by spring loaded contacts of the socket, to disconnect the column from the supply. The plug 1 has a metal case with a cylindrical portion 21 containing an insulating block 23. The block 23 carries an earth contact pin 35 which has a domed end 40 and is connected to the case by a screw 24. Line and neutral pins may be similar although smaller, or may comprise a cartridge fuse 28 projecting from a terminal head 29. The socket 2 has a metal case 3 having a flange 4 with holes (5, Figs. 3, 4 not shown) for fixing to the base of the column. The case 3 contains an insulating block 7 with three corresponding contact sockets, an earth socket 13 being connected to the case 3. Each contact socket contains an abutment contact 17 backed by a spring 19 for ejecting the plug 1. After ejection, the socket contacts may be protected against dirt and moisture by a cover (46, Fig. 1, not shown) which is pivoted on a pin (48) through lugs 49 on the socket and closed by a spring (45).
Patent GB-1470527-A (GB)
Title: Steam power plant
IPC: F01K19/02
Filed: 1974-10-08
Abstract: 1470527 Steam power plant; reciprocating steam compressors; rotary positive displacement compressors; steam pump valve gear W C LANG 8 Oct 1974 [7 Dec 1973] 56990/73 Headings F1F F1M F1N F1Q and F1T A steam power plant includes a boiler 1 having a first outlet 6 delivering high-pressure steam to a prime mover 4, e.g. a steam turbine, and a second outlet 16 delivering high-pressure steam in line 13 to first and second compressors 10, 11 adapted to compress the exhaust steam in line 12 from the turbine 4 back to substantially boiler pressure and to return the compressed steam back to the boiler in line 14. The exhaust steam in line 12 is compressed to an intermediate pressure in compressor 10 and then fed via line 15 to the second compressor 11. The first compressor 10 is a reciprocating-piston type, Fig. 2 (not shown), driven partially by the turbine and partially by the high-pressure steam in line 13. The steam is compressed in parallel-arranged cylinders (20) in which the pistons (31) are reciprocated both by a crank-shaft (22) driven by turbine 4 via a fluid coupling (24), and by high-pressure steam in line 13 fed to the back of the pistons via cam operated inlet and outlet valves (33), (34), the steam in line 12 to be compressed passing to and from the cylinder above the piston via pressure responsive inlet and outlet valves (30), (32). The second compressor 11 is of the eccentric rotor type, Fig. 3 (not shown), or of a sliding vane type, Fig. 4 (not shown), again driven partially by the turbine and partially by the high-pressure steam in line 13. In (Fig. 3) two cylindrical rotors (40) are mounted eccentrically on a shaft (42) in an associated casing (41), each casing having three radial vanes (44) defining chambers (A), (B), (C). The lowpressure steam from line 15 is compressed first in chamber (A) and further in chamber (B) before discharge to line 14. Chamber (C) is fed with high-pressure steam from line 13 to help drive the rotors. Again (Fig. 4), high-pressure steam is fed via one-way valves (67) to help drive the vaned rotor, and is mixed with the steam being compressed.
Patent GB-1325579-A (GB)
Title: Chlorination or sulphochlorination of polymers
IPC: C08F8/00
Filed: 1970-12-01
Abstract: 1325579 Chlorinating and chlorosulphonating polymers BASF WYANDOTTE CORP 1 Dec 1970 [21 Jan 1970 (2)] 57136/70 Heading C3P Polyolefins and chlorinated polyolefins are chlorinated or chlorosulphonated by reacting with chlorine, alone or with sulphur dioxide, or with sulphuryl chloride in the presence of a catalyst in a two-phase slurry system containing a fluorocarbon medium in which the concentration of the insoluble part of the total amount of polymer in fluorocarbon is 1 to 35 weight per cent. Specified polymers are polyethylene, polypropylene, polybutylene, ethylene/propylene copolymers and chlorinated polyethylene. The catalyst may be light, heat or a free radical initiator such as a peroxide or azo compound. Preferred fluorocarbons have 1 to 4 carbon atoms and 4 to 10 h alogen atoms at least one of which is fluorine. Examples describe the chlorination of (I and II) polyethylene, (X and XI) polypropylene in 1,1,2-trichloro-1,2,2-trifluoroethane, and of polyethylene in (III and IV) trichlorofluoromethane, (V) 1,1,2,2-tetrachloro-1,2-difluoroethane, (VI) 1,2-dichloro-1,1,2,2-tetrafluoroethane, (VII) trichlorotrifluoroethane and trichlorofluoromethane, (VIII) 1,2-dibromo-1,1- 2,2-tetrafluoroethane and (IX) dichlorodifluoroethane; and the chlorosulphonation of (XIIXIV) polyethylene, (XVIII) polypropylene and (XIX) chlorinated polyethylene in trichlorotrifluoroethane, and of polyethylene in (XV) trichlorofluoromethane and (XVI and XVII) dichlorodifluoromethane. The products may be compounded with fillers, e.g. carbon black, and cured by heating with metal oxides, eg magnesium, zinc, lead or calcium oxides.
Patent GB-1236498-A (GB)
Title: Improvements in or relating to adjustable inductors
IPC: H01F17/04
Filed: 1969-11-25
Abstract: 1,236,498. Inductors. SIEMENS A.G. 25 Nov., 1969 [26 Nov., 1968], No. 57563/69. Heading H1T. A miniature adjustable inductor has a potshaped ferrite core which is split into a fixed portion 1 and a rotatable portion 3 and encloses a winding 2 soldered to terminal pins 8. The two core parts 1, 3 are aligned by a synthetic resin centring plate 4 having a central pin 5 locating in coaxial bores in the core parts. The core part 3 and the plate 4 are interlocked by elevations and recesses so that they rotate together when the plate 4 is turned by an adjustment key. The assembly is held together and to a printed-circuit board by a springy bracket 6 of German silver and which has an aperture in one of its sides to receive a lug 7 on the core part 1, thus preventing the latter from rotating during adjustment. The ends of the bracket 6 are unsymmetrical and orientate the inductor positively on the circuit board by locating in holes therein.
Patent GB-1319692-A (GB)
Title: Plug and socket connector for telephone subsets
IPC: H01R/
Filed: 1970-12-08
Abstract: 1319692 Two-part couplings INTERNATIONAL STANDARD ELECTRIC CORP 8 Dec 1970 [11 Dec 1969] 58198/70 Heading H2E  In a plug and socket connector, the socket Fig. 4 comprises an open-top case 11 with a removable cover 30, walls 15, 16, 17 defining openings 20, 22, 23, spring contacts 27, 28 secured by screws 26, and separated by partitions 25, and a guide compartment 21; the plug Fig. 2 comprises an open-top case with a removable cover 53, pairs of contact-blades 47 with the blades of each pair separated by an insulating strip 48, an alignment lug 51 projecting from one end of the case and adapted to slide into the guide compartment 21, there being a hole 52 in the lug for receiving means to secure the lug in the guide compartment. The socket case has a chimb 13 and knock-out parts in the end 14 with a wiring compartment 19, buffers 24 on each side of the openings 20-23 and holes 33, 34 for screwing the socket to a plate 35 and a support. The screws 26 also serve for connecting wires to the contacts which have bifurcated ends for receiving the plug contacts and are flanged at the screw-connected ends; a bridging link 29 may interconnect two contacts. The plug is generally similar but the contact blades 47 have ends 49 suitable for solder or "slide-on" wire connections; the outer ends of the insulating strips 48 are widened into arrow-shape. On mating, a lug (36) in the socket cover (30) snaps into the hole 52 which registers with a hole 33 in the compartment 21 so that a screw may be inserted therethrough to interlock the plug and socket. The plug cover (53) has a lip (56) which overhangs the socket when mated for excluding dust. Serrations 57 on the plug case aid gripping.