baber/WOPTO huggingface dataset:
Patent GB-1402816-A (GB)
Title: Apparatus for winding strand material
IPC: B65H54/28
Filed: 1973-09-25
Abstract: 1402816 Controlling relation between traverse guide and package surface JOHNSMANVILLE CORP 25 Sept 1973 [28 Sept 1972[ 44818/73 Heading D1J A yarn winding apparatus of the kind in which the mandrel of a yarn package 32, Fig 5, is automatically moved away from a traverse guide 38 as the package increases in diameter comprises a traverse shaft 48, Fig 3, that is rotatable by a pulley 40 to cause the guide 38 to reciprocate and a package winding mandrel shaft 68 that is rotatable by a pulley 80 mounted on a carriage 72, the carriage 72 being movable in a straight line to and from the shaft 48. The carriage 72 carries an idler pulley 92 and there is a further idler pulley 94 that is normally fixed in position on the machine frame. A timing belt 116 runs around the four pulleys as shown, the arrangement being such that even though the carriage 72 is moved along support rods 82, 84 no shange in length of the timing belt 116 is necessary. Controlling the movement of the carriage 72. Below the traverse guide 38, Fig 5, is a roller 126 running in gas bearings and spring biassed against the package 32. As the package increases in diameter the roller 126 is displaced to rock an arm 128 about a shaft 30 and so displace a rod (142) Fig 6 (not shown) to a setting where it completes a circuit controlling a four-way valve for a hydraulic cylinder 86 that is used to move the carriage 72 along the rods 82, 84. When the circuit is closed the valve permits the carriage 72 to move away from the traverse guide 38. When the circuit is open the valve closes and stops the carriage 72. A damper mechanism (148), Fig 6, prevents the roller 126 from becoming operative in response to jolts and vibrations. Mandrel drive. The mandrel assembly is a motor with the mandrel forming the rotor of the motor and the shaft 68 forming the stator of the motor. Traverse. The pulley 40 and shaft 48 drive a drum and the yarn guide 38 has a follower member that slides in an endless groove in the drum. The pulley 94 has means 106-112 whereby its setting is adjustable. The apparatus is stated to keep a constant angle of introduction and departure between the strand 30 and the strand guide 38, and a constant angle of introduction between the strand and the package 32.
Patent GB-1517209-A (GB)
Title: Apparatus for the sterilisation of wrapping material
IPC: B65B55/04
Filed: 1975-10-30
Abstract: 1517209 Sterilising wrapping material FR HESSER MASCHINENABRIK AG 30 Oct 1975 [14 Nov 1974] 44822/75 Heading DIL In sterilising endless sheets of wrapping material by passing the sheets 9 through a housing 1 containing H 2 O 2  soln. 15 having an outlet 14, the outlet is provided with nozzles 12 for spraying sterile rinsing water onto the sheets, trough 11 collecting the rinsing water. The sheets may be subject to air jets from slit nozzles 10 and 13 to remove sterilising and rinsing liq. respectively. The collecting trough has an overflow 22 above the highest part of the outlet so that rinsing water accumulates in the trough 11 to form a liq. seal to the housing and prevent egress of steam therefrom. Plates 20, 21 perform the same function.
Patent GB-1370457-A (GB)
Title: Electrical signal monitoring systems
IPC: H04M3/08
Filed: 1971-09-27
Abstract: 1370457 Monitoring digital data transmission SIEMENS AG 27 Sept 1971 [30 Sept 1970] 44827/71 Heading H4P In a monitoring system producing a fault condition indication if a predetermined function of the mean value and duration of a measured quantity signal exceeds a predetermined value, means are provided to feed the signal to be measured F(t) to at least one integrator ZK for deriving the mean value, and further means are provided for feeding a further signal L(t) to the integrator to be subtracted from the measured quantity signal, the further signal being a function of the measured quantity signal so selected that a given storage level is produced at the output of the integrator for predetermined related pairs of values of the mean signal value and the duration, and the arrangement being such that the fault condition indication is produced if the storage level is exceeded. As described, the predetermined function is: where T is the time period, #F(t) is the mean value of F(t) and S 0  is the storage level. In one embodiment the required storage level is determined for two related pairs of values F 1 , T 1  F 2 , T 2 , and in this case the function of L(t) is a constant L 0 . The measured quantity is a pulse train and L 0  is represented by a constant frequency pulse train produced by a clock generator TG and divider FT. The integrator is an up/down counter which is followed by a discriminator D which produces an output if a predetermined count is exceeded. In an arrangement allowing for more than two related pairs of values a number of integrators are arranged in parallel, each fed with a respective constant clearing quantity, the outputs of the respective discriminators being linked by an OR gate. The arrangement is applied to detecting symbol errors in a data transmission system, and switching over to other equipment.
Patent GB-1472418-A (GB)
Title: Compression ignition internal combustion engine
IPC: F02B3/06
Filed: 1974-10-16
Abstract: 1472418 Opposed piston C I engines; starting engines W G ARMSTRONG WHITWORTH & CO (ENGS) Ltd 1 Oct 1975 [16 Oct 1974] 44869/74 Headings F1B and F1K [Also in Division F2] The reciprocation of the opposed pistons 5 is converted to rotary motion of an output shaft by rocker beams 7, 12 each pivoted at one end 8, 13 and the pivots, e. g. eccentrics, are adjustable to vary the compression ratio. The connecting rods 9, 14, 15 engage cranks 10, 16, 17 on the output shaft and the pins 19 and 20 of the adjustable pivots may be controlled simultaneously or separately, e. g. mechanically or hydraulically. The members 18 supporting the beam pivots may be attached to a beam 21 forming part of the engine frame. The pistons may be connected to the rocker beams intermediate the pivoted ends and the connecting rods, Fig. 2b (not shown). The engine may be a 2 or 4 stroke and have an exhaust gas turbocharger. The engine may be run up to starting speed with a low compression ratio, started with a higher than normal ratio and returned to the normal ratio after starting.
Patent GB-1144120-A (GB)
Title: Slatted blind
IPC: E06B9/36
Filed: 1967-10-03
Abstract: 1,144,120. Slatted blinds. STOREN -UND MASCHINENFABRIK EMIL SCHENKER A.G. 3 Oct., 1967 [10 Oct., 1966], No. 44887/67. Heading E1J. In a slatted blind in which each slat is arranged with its longitudinal axis vertical and is rotatable about the vertical axis and is arranged to traverse the window to open and close the blind a rotatable short pivoting shaft 11, 18 rotates each slat about its pivot 7 through a transmission gear (not shown) and a drive shaft 10, 16 'screw on the portion 10 to engage the internal thread of a nut 12 or a slat, supporting member 8 to move the nut 12 or member 8 along the shaft to contact the adjacent member 8 and push all the members 8 in succession to a storing position or by means of linking strips 13 to expand the blind to the closed condition, the slat pivoting shaft 11, 18 being coupled to the drive shaft 10, 16 by a friction coupling, shown as spring pressed washers 26, so that as the slats contact each other in their closed positions, the clutch slips and the pivoting drive on the slats ceases. The carriers 8 for the slats are bored transversely to allow clear passage therethrough of the drive shaft 10 are supported on rollers 4 running in guides 3. The driving shaft may be motor or manually operated and alternative arrangements are described, (Figs. 3 and 4, not shown).
Patent GB-1118169-A (GB)
Title: Improvements relating to tyres
Inventor: MARSHALL GEORGE EDWARD
IPC: B29D30/72
Filed: 1964-11-04
Abstract: 1,118,169. Moulding tyres. BELUS Ltd. 11 Aug., 1965 [4 Nov., 1964], No. 45000/64. Heading B5A. Apparatus for applying uncured layers of rubber 44, 46 to the side walls of a tyre 13 after applying adhesive, comprises mould halves 40, 41 which completely surround the tyre and which have surfaces conforming to the required contour of the parts of the walls to be formed by the layers, the remainder of the interior surfaces of the mould conforming to the existing shape of the tyre at least in its tread region. The applied layers are vulcanized by steam pipes 38 or an electric heater in the mould halves, each of the latter comprising inner and outer rings. Pressure is applied to the tyre via an inner tube 35, and the mould assembly is mounted on a base 22 and clamped together by a ring 28 urged downwardly by a nut 32 on a post 25.
Patent GB-1418088-A (GB)
Title: Polishing semi-conductor surfaces
IPC: C09K3/14
Filed: 1973-09-26
Abstract: 1418088 Polishing semi-conductor surfaces WACKER-CHEMITRONIC GES FUR ELEKTRONIK - GRUNDSTOFFE mbH 26 Sept 1973 [26 Sept 1972] 45127/73 Heading B3D [Also in Division C4] A process for polishing a surface of a semiconductor body comprises the first step of polishing the surface by means of a polishing agent containing one or more of the following: quartz, a silica, a silicate, and a fluosilicate, and the second step of polishing the surface by means of a polishing agent containing, in addition to the component(s) above, from 1 to 10% by volume of a monohydric alcohol having 3, 4 or 5 carbon atoms, and from 0À01 to 0À5% by weight of a polyvinyl alcohol, the percentages being relative to the polishing agent without monohydric alcohol and polyvinyl alcohol. The second step eliminates roughness of the surface and renders it free of "haze". The polishing suspensions used in the first step may contain precipitated silicates, such as metals of the main Groups II and III and sub Groups II and III of the periodic system and the heavy metal silicates, e.g. zirconium, iron, lead, nickel, cobalt, magnesium, calcium, strontium, barium, zinc and aluminium, or precipitated fluosilicates such as metals of Groups I, II, III of the periodic system, e.g. sodium, potassium, magnesium, calcium, barium, aluminium and zinc. The polishing agent may contain an alkali. The polishing suspension used in the second step is the same as that in the first step with the addition of the monohydric alcohol and polyvinyl alcohol. The monohydric alcohol is saturated, for example, n-propanol, isopropanol, n-butanol, isobutanol, tert-butanol, amyl alcohol and isoamyl alcohol; the alcohols may be mixed. The polyvinyl alcohol may be a polyvinyl ester saponified to 88 to 100 mole per cent. The first polishing step may take from 10 minutes to two hours whereas the second step lasts from two to ten minutes. In one example of the process, sawn silicon discs were secured by wax to a carrier plate of stainless steel and placed on a rotating plate of a polishing machine. A polishing cloth was stretched over the plate and a polishing pressure of 0À2 kg./cm.<SP>2</SP> applied while a polishing suspension was dripped on to the plate, the suspension comprising 50 litres of waterglass and 25 kg. of calcium chloride in 600 litres of water. After one hour, 5% by volume of butyl alcohol and 1% by volume of a 10% strength polyvinyl alcohol solution was added to the polishing suspension and polishing continued for a further 6 minutes. In another example, the same process was carried out on gallium arsenide discs. In a further example, 50 kg. of quartz flour having a particle size between 10 and 40 nm was suspended in 500 litres of water and sodium hydroxide solution added. The suspension was dripped on to silicon during polishing for 50 minutes after which 4% by volume isobutanol and 3% by volume of a 10% strengths polyvinyl alcohol was added to the suspension and polishing continued for a further 7 minutes.
Patent GB-1520656-A (GB)
Title: Process for the production of elastic composites
IPC: B29B15/00
Filed: 1975-10-31
Abstract: 1520656 Elastic composites comprising polyurethane binders BAYER AG 31 Oct 1975 [25 Nov 1974] 45243/75 Heading C3R Elastic composites are prepared by mixing 100 p.b.w. of a rubber and/or elastomeric plastics granulate with 1 to 20 p.b.w. of a paste comprising a polyether polyol and at least one filler and/or pigment, mixing the resulting granulate paste with a polyisocyanate binder comprising a polyurethane prepolymer, moulding the resulting mixture to form a composite and hardening the composite by the action of water. The composite may be used for floor coverings.
Patent GB-1330388-A (GB)
Title: Superplastic lead alloys
IPC: C22F1/12
Filed: 1971-09-29
Abstract: 1330388 Cracking at specified temperatures; altering physical properties; making strip material ST JOE MINERALS CORP 29 Sept 1971 [5 Oct 1970] 45286/71 Headings B3A and B3V [Also in Division C7] Superplastic lead alloys are prepared by casting an age hardenable lead alloy, fully age hardening the casting and then extruding it at an exit surface temperature in the range 120- 250 F. The surface temperature may be brought within this range by spraying the extrusion with water as it leaves the die. Leadcalcium alloys may be used, containing 0À03- 0À5 weight per cent calcium, or lead-calcium-tin alloys containing the above content of calcium and up to 1À0 weight per cent tin. Alternatively, the lead may be alloyed with one or more of antimony, tellurium, barium, strontium, sodium and lithium. Binary alloys may be fully age hardened in one day at 20 F., ternary alloys requiring 60-90 days, which may be reduced to 5 hours at 400 F. Extrusion ratios may be 38 : 1 and 133 : 1 and cam speeds 1-12 inches per minute.
Patent GB-1282636-A (GB)
Title: Improvements in or relating to closed loop hybrid positioning apparatus
IPC: F15B9/03
Filed: 1969-09-15
Abstract: 1282636 Hybrid position servos CHANDLER EVANS Inc 15 Sept 1969 [19 Sept 1968] 45435/69 Heading G3P A two-stage servomotor has a primary piston 20 whose left face is continuously subject to inlet pressure via 26 and whose right face is subject to a control pressure established by solenoid operated supply and exhaust valves 30, 32. Selectively energised by a transistorized switching circuit 14 receiving position error signals from a summer 10. Movement of piston 20 is transmitted via a lost-motion coupling to supply and exhaust valves 64, 62 of secondary piston 24. In circuit 14, Fig.2, coils 42, 44 of valves 30, 32 are energised alternatively according to whether the error signal on 88, as amplified by Q 1 , is less than the voltage on 84 or greater than the voltage on 86. When the error signal on 88 lies within the dead band region corresponding to the difference between the reference voltages on 84, 86, as determined by potentiometer R 3 , then neither coil is energised. Applications include missile control fin positioning.
Patent GB-1090529-A (GB)
Title: Method and device for releasing electric energy
Inventor: PROST GERARD
IPC: H02M9/04
Filed: 1966-10-12
Abstract: 1,090,529. Superconductor devices. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 12, 1966 [Nov. 9, 1965], No. 45657/66. Heading H1K. Electric energy stored in a superconducting loop circuit is transferred to a load circuit via a low resistance metallic sheath which covers and contacts the superconductor over part of its length, a switch to break the loop circuit being provided in the uncovered superconductor portion. The Figure shows a superconductor 3 covered by a sheath 4 of copper or aluminium which may consist of a plurality of wires or a ribbon in which the superconductor is embedded. Switching means is provided by heater coil 7 which when energized heats the uncovered portion of superconductor 3 above its critical temperature. The sheath 4 is connected via terminals 11, 12 to a current generator 12; to establish the loop current, generator 13 provides a current in coil 1 through the sheath with switch 7 open; switch 7 is then closed to complete superconducting loop 3 which traps the circulating current when generator 13 is disconnected. Terminals 11, 12 are then connected to a load to which the stored circulating current energy is transferred when switch 7 is opened. Other forms of switching may be adapted such as breaking mechanical contact or the application of a high magnetic field. The turns of the coil 1 may be insulated from each other by a coating, e.g. aluminium oxide, on the sheath.
Patent GB-1199815-A (GB)
Title: High-Frequency Power Diode
Inventor: MANKARIOUS RAMZY GUINDY
IPC: H01L23/36
Filed: 1968-09-26
Abstract: 1,199,815. Semi-conductor devices. HUGHES AIRCRAFT CO. 26 Sept., 1968 [18 Oct., 1967 (2)], No. 45706/68. Heading H1K. An IMPATT diode comprising a diffused or ion-implanted p-type zone 14<SP>1</SP> formed in a relatively low conductivity n-type epitaxial layer 12<SP>1</SP> on an n + type substrate 10<SP>1</SP> is provided with a heat sink in direct contact with the entire upper surface of the upper electrode 16<SP>1</SP> of the device. In the embodiment the heat sink comprises an Ag pad 26 electroplated on to an evaporated electrode 16<SP>1</SP> of Au or Ni or of Cr, Mo or Ti coated with Au. A layer 28 of In is plated over the Ag pad 26. The lower electrode comprises a Au-Sb layer 20<SP>1</SP> carrying an Ag pad 221 and an In coating 24<SP>1</SP>. In a modification a layer of Cr is provided under the electrode 16<SP>1</SP> and an additional layer of Au is situated on the In layer 28. The substrate 10<SP>1</SP> and epitaxial layer 12<SP>1</SP> are of Si and B is used as the diffusant or ion source to form the p-type zone 14<SP>1</SP>. If ion implantation is used, the implanted body is annealed for a time after bombardment.
Patent GB-1440647-A (GB)
Title: Mode selection switches production of precipitated red iron iii oxide pigment relatively  free of a-feooh
IPC: F42C13/00
Filed: 1973-10-01
Abstract: 1440647 Switches for projectile fuzes DEFENCE SECRETARY OF STATE FOR 2 Aug 1974 [1 Oct 1973] 45849/73 Heading F3A A switch for setting the electrical fuze of a shell or a motar bomb for proximity or point detonation, comprises a member 6 carrying one or more electrical conductors 10 that form part of the fuze circuits, the member 6 being rotatable so that none or a selected one of the conductors can be cut by a cutter 9 to set the fuze for its required function. A member 2 supporting the cutter moves axially when the shell or bomb is fired and causes the cutter to sever the selected conductor; but only if a cap 5, rigid with tne member 6, has been rotated previously with the consequence that a blocking pin 3 has been moved out of a notch 4 in the member 2. In the embodiment shown, when the conductor 10 is cut a proximity function is activated; but if instead the cutter moves through a notch 8 in the member 6 the proximity function remains deactivated and the fuze is detonatable only by impact. A printed circuit (not shown) is carried by the member 6. According to the number of conductors, there may be a choice of several different proximity distances or post impact or post firing delay times.
Patent GB-1109019-A (GB)
Title: Photocopy machine
IPC: G03G15/10
Filed: 1966-10-13
Abstract: 1,109,019. Photo-copy apparatus. SPEED- 0-PRINT BUSINESS MACHINES CORPORATION. Oct. 13, 1966 [April 28, 1966], No.45886/66. Heading G2A. In a photo-copying machine having a tray 14 for holding processing liquid through which sheet material is passed, the tray is connected via a flexible tube 40 with a liquid reservoir package 20 on a substantially horizontal platform 46 which is movable between an upper position shown in which liquid therein flows under gravity into the tray, and a lower position Fig. 1 (not shown) in which the tray is drained by gravity flow of the liquid. Such gravity flow also agitates the liquid. The platform 46 is part of an elevator 45 to side walls (49), 50 of which pivot pins 57 are attached. Arms (55), 56 pivotable about a shaft 60 are also pivoted at the pins 57; movement of the arms by means of a handle (67) thus raising or lowering the elevator. As shown, the machine is used in a diffusion transfer process.
Patent GB-1362536-A (GB)
Title: Rotors for electrical machines
IPC: H02K3/22
Filed: 1971-10-01
Abstract: 1362536 Liquid cooled electric machine rotor winding KRAFTWERK UNION AG 1 Oct 1971 [2 Oct 1970] 45925/71 Heading H2A In a rotor for an electrical machine, e.g. a turbo-generator, comprising cooling liquid connecting conduits 6 in the coil end zone W of the rotor field windings, each of at least some of the winding turns 5 has an inner liquid duct 12 connected to an inner duct of a cooling liquid tube 16 via inner connecting ducts 13, 15 of a blocklike nose member 11 connected to or integral with a cross conductor 10 in the coil end zone of the winding turn and projecting from the conductor in the axial direction of the rotor, the tube 16 having an end 16a extending substantially parallel to the cross conductor and towards a lateral circumferentially facing surface 11a of the nose member where the tube is connected to the ducts 13, 15, the radial dimension r of the cross conductor being at least as great as that r<1> of its associated nose member and each nose member having a minimum radial dimension r<1> and axial projection a no less than the-external diameter d of the tube 16 plus the necessary minimum radial wall thicknesses w necessary in the nose member to receive the tube end 16a. This construction stems from the realization that, in very large machines, the nose members 11 may have the radial dimension r<1> equal to, or in the modification of Fig. 4 smaller than, that r of the cross conductors 10. The conduits 6 form individual conduits 60a wedged at 20 into shaft stub grooves 20 and bent at 60b to extend between the radially stacked nose members where they form the tubes 16. The cooling liquid flow f may be into and out of the respective ends of the rotor, to flow through the winding half turns 8a, 8b in parallel, or into and out of a single rotor end, Fig. 1a, not shown, via central shaft infeed and drain stub ducts (26, 27), and infeed and drain distributer chambers (23, 24).
Patent GB-1331466-A (GB)
Title: Removal of dust from gases
IPC: B03C3/16
Filed: 1970-09-29
Abstract: 1331466 Separating dust from gas streams D ROMELL 29 Sept 1970 [30 Sept 1969] 46364/70 Heading B1R Water droplets sprayed by nozzles 4 into a dusty gas stream in countercurrent thereto are given a charge just below that required to create a corona discharge by means of electrodes 6. The charged droplets are entrained, and as they progressively evaporate and reduce in size they transfer their charge to the dust particles in the gas stream. The charged dusty gas is then passed to and past electrofilters 8 9, the dust-free gas leaving by outlet 10. If heat is necessary to assist in evaporating the droplets, heat radiators 11 are employed in duct 1.