baber/WOPTO huggingface dataset:
Patent GB-1010549-A (GB)
Title: Dielectric sheathing for high voltage cables
Inventor: JOHNSON OLIVER SANDERS
IPC: C08L23/22
Filed: 1963-11-25
Abstract: Insulating material for high voltage cables is obtained by mixing 40 to 60 parts by weight of ethylene propylene rubber with 60 to 40 parts by weight of a polyethylene of melt flow index 0.3 to 7.0, reacting the mixture in an internal mixer or on a mill at temperatures above 130 DEG  C. in the presence of an organic peroxide and elemental sulphur, and then using the partially cross-linked polymer blend thus prepared as a filler for an ethylene propylene rubber composition.  1 part by weight of peroxide, e.g. dicumyl peroxide, and 0.2 parts by weight of sulphur may be used.  Fillers may be added to the final mixture.
Patent GB-1279123-A (GB)
Title: Metal carbonitride coatings
Inventor: BLOOM JOHN ALLISON
IPC: C23C16/36
Filed: 1969-09-23
Abstract: 1279123 Si and B carbonitrides TEXAS INSTRUMENTS Inc 23 Sept 1969 [21 Oct 1968] 46835/69 Heading C1A [Also in Division C7] A pre-heated substrate is coated with a carbonitride of Si or B, by contacting it with a gaseous stream comprising a halide of Si or B and nitrogen- and carbon-containing components, in the absence of molecular hydrogen. The substrate, which is preferably heated to 400-1200‹ C., may be a ferrous metal, Ti, a ceramic, or graphite. The C and N may be supplied by hydrazine and a carbon containing compound, or by compounds of the following general formulµ: (R 1 ) 2 NN(R 1 ) 2 ; R 1 N:NR 1 ; R 1 N:NNHR 1 ; N:N:R 2 ; or where R 1  is H, a C 1 -C 18  hydrocarbon or an amino derivative of same, at least one R 1  not being H, and R 2  is a C 1 -C 18  hydrocarbon or an amino or aromatic substituted derivative thereof. The reactants may be carried by a non- deleterious carrier gas such as nitrogen.
Patent GB-1530475-A (GB)
Title: Preparation of sucrose esters
IPC: C07H13/06
Filed: 1976-12-20
Abstract: 1530475 Preparation of esters of sucrose with fatty acids W H T JOHN 20 Dec 1976 [15 Nov 1975 12 March 1976 15 July 1976] 47153/75 09897/76 and 29440/76 Heading C2C The invention comprises a process for preparing sucrose esters by heating sucrose with a fatty acid in the presence of ammonia or an ammonium salt. In one preferred embodiment the ammonium salt is the salt of the reactant fatty acid whilst in another the sucrose is dissolved in water to form a very concentrated sucrose phase and the fatty acid is melted and forms a supernatant layer above the sucrose phase and the ammonic or ammonium salt is added to the acid phase.
Patent GB-1185056-A (GB)
Title: Speed Sensor
IPC: G01S13/92
Filed: 1967-10-17
Abstract: 1,185,056. Radar. LABORATORY FOR ELECTRONICS Inc. 17 Oct., 1967 [2 Dec., 1966], No. 47244/67. Heading H4D. A Doppler radar system for determining the speeds of vehicles comprises a receiver, Fig. 2, for receiving the Doppler frequency signal which varies from a low frequency when the vehicle 10 has just entered the inclined conical radiation beam 20 to a higher frequency when the vehicle is leaving the beam. The low frequency signal is thus used as a vehicle detection signal and is selected by low-pass filter 26, and the higher frequency signal is used as a speed measuring signal and is selected by band pass filter 42. The detection signal is converted into a D.C. pulse by rectifier and filter 28 and is integrated in gated integrator 30. The rising output of integrator 30 triggers Schmitt trigger 32 to commence a detection pulse. This pulse enables gate 64 which receives the speed signal from filter 42. When the doppler signal rises beyond the pass band of filter 26, the output of integrator 30 ceases to rise and discharge through a controlled discharge circuit commences. The speed signal pulses passing through gate 64 are integrated at 66 and the result applied to a threshold controlled discharge control input of integrator 30. Thus for a slow vehicle the discharge of integrator 30 is normal, and trigger 32 is returned to its initial state when the vehicle is at an approximately predetermined position along the road. For a fast moving vehicle the output of integrator increases rapidly whereby the threshold of the input of integrator 30 is reached, and the output of integrator 30 immediately falls causing the return of trigger 32 to its initial state. The position of the vehicle on the road when said return occurs is thus made constant irrespective of the vehicle's speed. The return of state of trigger 32 is converted into a pulse by capacitor 34 and is used to " set " bi-stable circuit 40. The " set " output of circuit 40 disables gate 64 and enables gate 44. The speed signal is converted into a corresponding pulse train by monostable circuit 46 and the pulses are fed via gate 50 to a counter comprising integrator 54, low threshold trigger 56 and high threshold trigger 58. The time interval between the triggering of triggers 56 and 58 is inversely proportional to the vehicle speed. The triggering of trigger 58 is used to reset circuit 40 whereby the counter integrator output falls and trigger 56 returns to its initial state. The output of trigger 56 is thus a pulse of duration inversely proportional to the vehicle speed.
Patent GB-1075296-A (GB)
Title: Improvements in loose covers for upholstered seats
Inventor: MARCHBANK ROGER EVERITT
IPC: A47C31/11
Filed: 1964-11-20
Abstract: 1,075,296. Loose covers for seats. AMEDA CO. Ltd. Feb. 18, 1966 [Nov. 20, 1964], No. 47292/64. Heading A4M. A seat cover of knitted or stretch fabric has a foamed plastics backing bonded or stitched to portions covering the seat top and the front of the back rest. When arm portions are included they are also foam backed. The lower peripheral edges of the cover are secured beneath the seat by elastic or a draw cord.
Patent GB-1148767-A (GB)
Title: Process for the production of melamine
IPC: C07D251/60
Filed: 1966-10-21
Abstract: 1,148,767. Melamine. NISSAN KAGAKU KOGYO K.K. 21 Oct., 1966 [25 Oct., 1965], No. 47315/66. Heading C2C. A process for the synthesis of melamine consists of an aqueous carbon dioxide-ammonia system for producing urea operating at 180- 200‹ C. and 180-220 kg./cm.<SP>2</SP>, the product being depressurized to 40-60 kg./cm.<SP>2</SP>, and a urea-ammonia system for producing melamine operating at 360-450‹ C. and 60-150 kg./ cm.<SP>2</SP>, the melamine waste gas, a by-product of the latter system, being utilized for urea synthesis in the former system and the urea obtained from the former system being circulated to the latter system for melamine synthesis, wherein the waste gas (comprising ammonia and carbon dioxide) which is discharged from the top of the melamine reaction vessel is introduced directly into a waste gas absorption cell operated at 130-160‹ C. and 60-150 kg./cm.<SP>2</SP> in the recycle circuit of aqueous ammonium carbamate in the urea-producing system, the resulting concentrated aqueous ammonium carbamate being used for urea synthesis in the ureaproducing system; the sensible heat of the waste gas and the heat of ammonium carbamate formation being utilized for decomposition of unreacted ammonium carbamate and generation of steam; excess ammonia being recovered as liquid ammonia in the waste gas cell.
Patent GB-1492480-A (GB)
Title: X-ray picture coding
IPC: H04N5/32
Filed: 1975-11-19
Abstract: 1492480 X-ray system OPTISCHE INDUSTRIE "DE OUDE DELFT" NV 19 Nov 1975 [26 Nov 1974] 47646/75 Heading H4F In an X-ray system in which rays 2 from a source 1 pass through an object 5 and are incident on the screen 3 of a scanned image intensifier 4, the incident rays are spatially coded by a grid 8 having alternately transparent and opaque strips perpendicular to the line scan direction of the intensifier thus enabling distinction in a video circuit between primary radiation and secondary radiation since the latter will not be coded and it is also possible to remove the raster pattern of the image caused by the grid 8. The operating principles of a suitable video circuit are described and they comprise, in succession, averaging the signal levels between the coding pulses, clamping and holding during the coding pulses, clamping the resultant signal on the original video signal and amplifying the signal so produced alternately at one of two gain levels to remove the effect of the grid on the image. The timing pulses required for the video circuit are derived from the original video signal. The operation will be more readily followed in the Specification which includes exemplary waveform Fig. 2 (not shown).
Patent GB-1443801-A (GB)
Title: Yarn tall transfer mechanism for high speed winders
IPC: B65H54/20
Filed: 1973-10-12
Abstract: 1443801 Winding transfer tails PPG INDUSTRIES Inc 12 Oct 1973 [16 Oct 1972] 47759/73 Heading D1J The invention relates to the winding of dual packages and the provision of a transfer tail on each package. The tubes 12, 13 to be wound with strands 19, 20 are mounted on a common spindle 11. The two strands 19, 20 are initially laid in a guide eye 23 and extended onwards into the gap between the tubes 12, 13 whereupon the tubes 12, 13 are moved against each other to nip the strands 19, 20 therebetween. The drive means for the spindle member 11 is then actuated and the spindle 11 is brought up to speed, waste strand being wound up in a slot 18 between the tubes 12, 13. When the spindle 11 has reached full speed a shaft 25, on which inclined arms 24 and a finger 24a are mounted, is rotated to swing the arms 24 and finger 24a forwardly towards the viewer and then downwardly. This lifts the strands 19, 20 out of the guide eye 23 and causes the strands to move apart by sliding down the inclined arms 24; the strands 19, 20 being then quickly picked up by the strand traversing members 14, 15. In the short period of time that the strands 19, 20 move from between the tubes 12, 13 to the strand traversing members 14, 15 the transfer tails are wound. To ensure that the transfer tails are wound only after maximum speed have been attained, there may be an electro-magnet 28 that holds the arms 24 and finger 24a against the eye 23 until such time as spindle 11 reaches full speed. Thereafter the electro-magnet 28 is automatically de-energized. The shaft 25 may be operated manually by a handle 26.
Patent GB-1357170-A (GB)
Title: Crushing mills
IPC: B02C13/26
Filed: 1971-10-14
Abstract: 1357170 Impact pulverizers HAZEMAG HARTZERKLEINIERUNGS-UND ZEMENTMASCHINENBAU GmbH 14 Oct 1971 [2 Nov 1970] 47818/71 Heading B2A The beating rotors 10 of an impact pulverizer are rotated by a hydraulic ram 2 having a free end releasably connected to a rotor, and a pivoted end secured to the pulverizer frame, so that beaters 11 can be renewed and replaced or the rotors otherwise serviced. The ram is in each case connected, e.g. by a bolt, to an apertured disc 3, which is keyed on the rotor shaft 4. As described, a single ram is pivoted between two rotors, permitting it to be used with either. Each disc 10 also passes between two arms of a holding member 7 which has a bore extending through both arms so that a pin may be inserted to secure a rotor in position.
Patent GB-1191959-A (GB)
Title: Double Stroke Cylinder
IPC: F16K31/122
Filed: 1968-10-10
Abstract: 1,191,959. Fluid operated actuator. CORNING GLASS WORKS. Oct. 10, 1968 [Oct. 16, 1967], No. 48024/68. Heading F1P. A fluid operated apparatus comprises a cylinder 12 having closed ends (e. g. members 14, 16) and a stepped portion or shoulder 24 dividing the cylinders into first and second chambers 26, 28, the shoulder providing a stop for a floating piston 30 reciprocable in the first chamber and having a hollow cylindrical portion 32 extending into the second chamber, in the portion 32 there being a reciprocable a further piston 36 connected to a piston rod 34 extending through the piston 30 and one end, the piston 36 being selectively movable either relative to or with the piston 30 between a fully extended position, a predetermined intermediate position (e.g. with piston 30 retracted and piston 36 relatively extended) and a fully retracted position, then being fluid passage means 40, 42 (and maybe 44) in the cylinder ends 14, 16 (and maybe step 24) connectable to pressurized fluid means to effect these movements.
Patent GB-1121284-A (GB)
Title: Multi-layer pipes
IPC: F16L9/16
Filed: 1965-11-12
Abstract: 1,121,284. Coating apparatus. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND Ltd. 12 Nov., 1965 [23 Nov., 1964], No. 48129/65. Addition to 1,015,758. Heading B2L. [Also in Divisions B5, B8 and F2] A continuous process for producing endless spirally-wound pipe comprises in combination, feeding a flexible strip 2 around a mandrel 6 at an angle of less than 90‹ to its axis; rotating the pipe so formed whilst moving it along its longitudinal axis; injecting a flowable latent foaming composition 20 from means 13 protruding into the rotating pipe through a longitudinal opening 9 in the mandrel 6 and stationary in respect of the longitudinal pipe travel; assisting the even distribution of the foaming composition by the rotation and travel of the pipe and allowing the composition to expand and set. The mandrel itself is revolved by means of a gear at 8. The strip is led onto the pipe through rollers 3, 4 and compressed onto it by roller 18. Inclined rollers 15 act as supports. A preformed pipe 11 is fed through the mandrel by rollers 17 so that it forms a lining for the pipe inside the foam layer 20. Heaters at 16 assist curing of the plastic material. The strip may be plastic or metal. A flying saw may be provided for cutting the tube into lengths e.g. for containers.
Patent GB-1465129-A (GB)
Title: Method of making openings in sheet material
IPC: C23F1/00
Filed: 1974-11-08
Abstract: 1465129 Etching BUCKBEE-MEARS CO 8 Nov 1974 [11 July 1974] 48358/74 Heading B6J Openings having a minimum dimension less than the thickness of the sheet are etched in a continuous sheet of material by covering both faces of the material with resist layers, one layer having pattern openings larger than the sheet thickness and the other having openings smaller than the sheet thickness, first etching the face where the resist has the larger openings while protecting the other face with a resist shield, and then etching both faces. A resist covered film 9 is passed through etching chambers 11-15 having upper and lower spray nozzles 25-29 and 20-24. In the chambers 11-13 the upper face of the film is protected by a re-usable shield strip 30 of rubber containing magnetized particles, pressure sensitive polyesters, vinyl chloride, vinyl acetate, or polyethylene coated "Mylar" (Registered Trade Mark). In another form, the shield is in the form of a plastic film which is cooled and dried before application.
Patent GB-1098959-A (GB)
Title: Improvements in and relating to the processing of television signals
Inventor: MONTEATH GEORGE DEWAR
IPC: H04N5/208
Filed: 1965-11-15
Abstract: 1,098,959. Television. BRITISH BROADCASTING CORPORATION. Sept.26, 1966 [Nov. 15, 1965], No.48442/65. Heading H4F. The Specification describes a circuit whereby in an interlaced television display the flare caused by a bright spot A, Fig. 1 (c), in an even frame is counteracted by a halo of darkened lined lines B in the following odd frame. To do this, the pulse P, Fig. 1 (b), causing spot A, is broadened (L.P.F. 14, Fig. 2) and fed to a tapped delay line 16 whereby pulses Ps appear at the taps having delays with respect to pulse P of [V-(2n-1)H/2] ... [V-3H/2], [V-H/2], [V+H/2],   [V+H/2] . . . [V+ (2n-1)H/2], where V is the frame period, and H is the line period. The positions of the pulses thus coincide with the next frame's interlacing lines either side of spot A. By varying the amplitude of the pulses P's with potentiometers to give decreasing amplitude with distance from centre of group and by reversing (reverser 18), the polarity of the pulses, to convert them into " darkening " pulses, the display of Fig. 1 (c) can be produced by adding (19, 21) said pulses P's to the normal video. Before processing in said circuit the video signal is removed of its synch, and blanking pulses (12, 13) and its gamma connection (11). These are returned at the end of the circuit (22, 23). Pulse P may be amplitude modulated on to a 1 Mc/s. carrier, before passing through the delay line and the phases of the carriers at the two outermost tapping points kept equal by means of a servo control having a phase discriminator controlling a reactance modulator which changes the frequency of the carrier (see Fig. 3, not shown). If, for example, 30 tapping points are required, the delay line may be broken into two portions, Fig. 5 (not shown), the first having an average delay of TA, with five tapping points with respective delays of TA - 12H, TA - 6H, TA, TA+6H, TA+12H, and the second fed with the combined outputs of the five tapping points, having an average delay of V - TA, with six tapping points with respective delays of Alternatively, Fig. 6 (not shown) the delay line may comprise five input tapping points, each separated by 6H and six output tapping points, each separated by H, the delay between the centre points of the two tapping groups being V. Various types of delay lines are described using longitudinal or torsion waves travelling along a magnetostrictive wire, Figs. 4 (a), 4 (b), 4 (c).
Patent GB-1484826-A (GB)
Title: Air cushion workpiece carrier
IPC: B66F9/12
Filed: 1975-11-26
Abstract: 1484826 Workpiece carrier CATERPILLAR TRACTOR CO 26 Nov 1975 [23 April 1975] 48563/75 Heading B8H An air cushion workpiece carrier which, in use, is carried on the forks of a lift truck, comprises a base assembly which includes a rectangular base 16 having passageways (21) for receiving such forks (11), Fig. 1 (not shown), the base 16 having an upper base plate 18 to which a circular plate 23 having a smooth upper planar surface 24 is attached, a saddle support structure 13 which includes first and second annular plates 26, 33 being disposed over the base assembly, the plate 26 having a lower planar surface 27 adjacent to the said planar surface 24, a plurality of shallow cylindrical pockets 28 being formed in the surface 27, each pocket 28 being connected by a respective passage 29 to a manifold 32 formed in the plate 33, so that when pressurized air is fed to the manifold 32 through an inlet tube 36 the air reaches the pockets 28 and causes the support structure 13 to ride on a cushion of air relative to the surface 24 of the base assembly, to permit accurate positioning of an arcuate workpiece 15, e.g. a tyre, which is mounted on a pedestal 44 attached to the structure 13. A plurality of L- shaped brackets 38 are attached to the plate 23 and extend inwardly above the plate 33 to permit limited movement of the support structure 13 relative to the base assembly. Adjustable jacks (80) are provided at each o the rear corners of the carrier, Fig. 2 (not shown), for levelling the base assembly relative to the forks (11) of the lift truck.
Patent GB-1596414-A (GB)
Title: Device for the separation of liquid from a slurry
IPC: B01D33/11
Filed: 1977-11-22
Abstract: This solves, in particular, the problem even if the quantity of sludge fed exceeds the capacity of this device. In all cases, therefore, the material leaving the device will be completely dehydrated as required for the various treatments to which it will then be subjected. The device in question comprises a rotary drum (1) of oblong form arranged in an inclined position, the outer shell (2) or peripheral surface thereof being provided with holes, while its interior contains a band (10) wound in a helical form or right-handed screw, whereas the rotary movement of the drum is left-handed, in order to convey the sludge or mud to the discharge end (4), the said band extending from the interior of the drum shell towards the centre. A part of this band has a height which decreases in the direction of feed. The device can be advantageously used for separating the solid part from the liquid part in sewage waters with a view to their purification. <IMAGE>
Patent GB-1136216-A (GB)
Title: Simplified data processing system
IPC: G06F9/32
Filed: 1965-11-17
Abstract: 1,136,216. Digital computers; branch instructions. INTERNATIONAL STANDARD ELECTRIC CORP. 17 Nov., 1965 [18 Nov., 1964], No. 48835/65. Heading G4A. In a digital electric computer as described in Specification 1,105,628, a branching instruction for jumping from a main programme to a sub-routine refers to a storage location immediately preceding the sub-routine and a check is made for the presence of a control character at said location before the sub-routine is allowed to proceed The instructions are in the form of a 7-bit order part and a 14-bit single address part, each order enabling a plurality of gates for controlling which of a larger plurality of micro-operations are brought into use in a sequence determined by a sequencing circuit. Three such branching instructions are disclosed. In a first branching instruction BRC (Figs. 2, 3, 5, and 9, not shown), the address part merely contains the addresses of the instruction preceding the sub-routine and the control character (CTB) is stored in the order part of this latter instruction. In a second branching instruction BSP (Figs. 2, 3, 6 and 10, not shown), in addition to the above, the address of the instruction following the branching instruction (i.e. value of programme counter CP) is stored in a known storage location to enable return to the main programme after completion of the sub-routine (by indirect addressing using a simple unconditional branching instruction BNC*- Figs. 6 and 12, not shown). In a third branching instruction BCB (Figs. 2, 3, 7 and 11, not shown) programme looping is facilitated in that the jump is conditional on a special loop counter (which is decremented by one for each loop) being other than zero. Details are also given (Figs. 13 and 14, not shown) of the way in which the contents of one register comprising a plurality of bi-stable elements is transferred to a second similar register without that second register having first to be zeroized.
Patent GB-1434343-A (GB)
Title: Filtering
IPC: B01D37/04
Filed: 1972-04-19
Abstract: 1434343 Metering and filtering plastics P G KALMAN 19 April 1973 [19 April 1972] 48871/75 Divided out of 1433867 Heading B5B [Also in Division B1] Molten plastics is delivered through a filter 501 and a flow regulator 500-512 to a spinneret nozzle, the regulator comprising a chamber 502 whose volume is variable without resilience, volume variations being monitored and used to control the flow to or through the filter to stabilize the chamber volume and hence achieve a uniform flow to the nozzle, the chamber being located in a constant temperature bath. As shown chamber 502 is a ductile bellows on which a constant external pressure is maintained by weighted piston 510 pressurizing the liquid in bath 505. Movement of piston 510 detected by potentiometer 512 controls a delivery screw, variable restrictor or variably heated tube supplying plastics to filter 501. If filter 501 is of the movable ribbon type described in Specification 1,181,075, potentiometer 512 could control movement of the ribbon so that flow therethrough is restricted by clogging. Plastics leaves chamber 502 through a flexible capillary 503, which may have fins 504 and serves to reduce pressure fluctuations and to bring the plastics to the bath temperature. The bath contains oil and has a cooling coil 500, an electric heater 507 and a magnetic stirrer 508. Piston 510 may rotate to reduce axial drag. In Fig. 2 (not shown) the bath is open and the bellows 502 is pressurized by an external spring. The bellows volume is monitored by a differential transformer (517) or by recording the bath level, to control the flow. In Fig. 3 (not shown) plastics flows through two bellows-capillary units in series, located in separate baths pressurized by separate spring-loaded pistons, whose differential level is monitored to control the flow. In place of the bellows described, ductile tubes, diaphragms or hydraulic cylinders may be used. Capillaries may be replaced by collapsible tubes or variable orifices. The spinneret nozzle may be mounted directly on the bath to control the nozzle temperature.