baber/WOPTO huggingface dataset:
Patent GB-1258733-A (GB)
IPC: B60T8/26
Filed: 1970-01-06
Abstract: 1,258,733. Valves. NIPPON OIL SEAL INDUSTRY CO. Ltd. 6 Jan., 1970 [6 Jan., 1969], No. 674/70. Heading F2V. A valve for controlling the fluid pressure at the rear wheel cylinders of a vehicle braking system has a valve member 4 biased to the open position by spring 2 and formed with two passages 4<SP>1</SP>, 5<SP>1</SP> communicating with the hollow interior in which a ball 6 is biased by a spring 7 to close the passage 5<SP>1</SP>. In use rise in inlet pressure to a predetermined valve forces member 4 on to seat 6 to prevent communication between inlet and outlet and a further rise in inlet pressure to a second higher predetermined valve opens ball 6 to again allow inlet and outlet communication via passages 5<SP>1</SP>, 41. Ball 6 may be replaced by a lift valve with or without a guide stem.
Patent GB-1288302-A (GB)
IPC: F02K1/15
Filed: 1969-11-01
Abstract: 1288302 Variable area jet propulsion nozzles ROLLS ROYCE Ltd 30 Oct 1970 [1 Nov 1969] 53663/69 Heading F1J A variable area jet propulsion nozzle comprises a plurality of flap members arranged in a circumferential assembly to define the nozzle outlet, and an axially movable shroud which co-operates with the flaps to vary the nozzle area, there being an actuating mechanism comprising at least two push-pull jacks each having connected thereto one end of each of a pair of flexible push-pull cables, the other ends of the cables of the pair being connected to diametrically opposed points on the circumference of the shroud. The engine shown in Fig. 1 comprises an axially movable shroud 12 and two actuating jacks 15, each jack having connected thereto the ends of a pair of push-pull cables 16 the other ends of the pair of cables being connected to diametrically opposed points on the shroud 12. The actuator shown in Fig.3 3 comprises a rod having three piston members 20, 21, 22 mounted thereon, the piston rod carrying a crosshead to which are connected the ends of the inner members of a pair of push-pull cables, the outer members 26 of the cables being connected to the cylinder of the actuator. Fluid under pressure is supplied to one side or other of the pistons so causing the shroud member 12 to move either upstream or downstream so varying the nozzle area.
Patent GB-1289394-A (GB)
IPC: B41J23/02
Filed: 1970-12-10
Abstract: 1289394 Selective printing INTERNATIONAL BUSINESS MACHINES CORP 10 Dec 1970 [11 Dec 1969] 58652/70 Heading B6F Type selection; letter spacing.-A serial printer comprises a print element 9 rotatable by means of a shaft 8 driven by a stepping motor 7 for character selection, and means whereby the rotation of the shaft 8 can be employed to advance the print element 9 and its carriage 1 along the print line. As shown, a rack 20 is mounted for pivotal motion about pins 22 between a position engaging a toothed lug 19 on the carriage 1 and an alternative position engaging a pinion 10 fixed to the shaft. Electromagnets 23 effect such pivoted motion against springs 24. In a modification (Fig. 2, not shown) the pinion (10) meshes with a gear (34) mounted on an electromagnetically operated rocker arm (33) whereby the gear (34) can be engaged with or disengaged from a rack (32). The motor may be fixed to the machine frame (Fig. 3, not shown) and drive the print element shaft (8) through an endless belt (36). Carriage stops; carriage return; line spacing.- At the end of a line of print, a magnet 17 on the carriage closes reed contacts 24a to cause the motor 7 to be driven in the reverse direction, the rack 20 being engaged with the pinion 10 to permit carriage return. When the carriage reaches the beginning of the line, reed switch 25 is closed to disconnect the drive and reinstate the forward direction of drive of the motor 7, and the carriage 1 strikes a lever 26 which is coupled to a pawl 30 to effect a line spacing step of the platen 3.
Patent GB-1289485-A (GB)
IPC: G05F3/30
Filed: 1969-12-18
Abstract: 1289485 Automatic current control EASTMAN KODAK CO 18 Dec 1969 [18 Dec 1968] 61751/69 Heading G3R A constant current circuit comprises transistors Q1....Q4 and resistors 3,5 connected as shown and operating to maintain at a desired value the current from terminal I 0 , a variation of which current varies the base current of transistor Q3 and hence the volt drop across resistor 5 to vary the base-emitter voltage of transistor Q1, the latter variation producing a compensating variation of the base current of transistor Q2 to restore the current to its desired value. This desired value is set by the transistor Q4 which is connected to operate as a diode and which maintains on the base of transistor Q1 a substantially constant voltage, irrespective of variations of the voltage source 5. Resistor 5 may be of low value to enable the circuit to be of monolithic integrated construction, in which, case the transistors all have near identical temperature coefficients to compensate for temperature variations.
Patent GB-1290158-A (GB)
IPC: B60P3/073
Filed: 1969-10-30
Abstract: 1290158 Loading containers on vehicles MONOMECH DEVELOPMENTS Ltd 30 Oct 1970 [30 Oct 1969] 53345/69 Heading B8Q A method and apparatus for loading a container, (or vehicle), on to a vehicle, comprising mounting on the vehicle longitudinally thereof a support 10 consisting of a pair of rails on which runs a pivotal assembly 12 by means of rollers 20, 22, the assembly of the commencement of loading being at the rear of the support which is tipped, Fig. 1 and engaged by means of a pin 16 in a hook member 24 on the front of the container, loading then being undertaken by pivoting the assembly about roller 20 until roller 22 contacts the rails using winch 26 contained winching drawing the container on to the support until it reaches the front end thereof. Once the centre of gravity of the container is past the rear wheels of the vehicle the support is lowered and pin 18 also enters the hook member 24. The various components after loading are finally secured by a catch 30 engaging a projector 34 of the hook member.
Patent GB-1290524-A (GB)
IPC: H01H51/06
Filed: 1969-05-27
Abstract: 1290524 Electromagnetic contactors JOSEPH LUCAS (INDUSTRIES) Ltd 10 April 1970 [27 May 1969] 26636/69 Heading H1N A combined switch and coupling mechanism for use in an internal combustion engine includes a starter motor 39, a pinion 38 driven by the starter motor and engagable with a toothed wheel 41 on the engine, a solenoid type electromagnet 10 for moving the pinion into engagement with the wheel when its two part armature is axially moved on energization of the solenoid and contacts arranged to be operated on solenoid energization in dependence on the proper engagement of the pinion 38 and wheel 41. The armature parts 34, 35 are coupled by a spring 36 and move together unless the part 35 is prevented from further movement by tooth to tooth engagement of the wheel and pinion. Under these conditions the armature part 34 moves a sleeve which carries a part 22 on which a contact bridge 24 is resiliently mounted and the bridge engages the end 33 of a latch 31 to rock the bridge into engagement with fixed contacts 13; 14 so as to energize one winding of the motor to move teeth of the pinion 38 into alignment with teeth of the wheel 41. As the teeth engage the armature part 35 moves a rod 26 against a spring 27 to engage the latch 31 so that its end 33 moves into a slot in the bridge 24 which is moved by its biasing springs 25 into engagement with a further contact 15 so as to energize further starter motor windings. On de-energization of the solenoid the mechanism is reset by a spring 19. If the teeth engage without difficulty the rod 26 moves the latch 31 so that contact 15 is engaged "fractionally after" contact 14.
Patent GB-1295167-A (GB)
IPC: C07C/
Filed: 1970-04-01
Abstract: 1295167 Adiponitrile BADISCHE ANILIN- & SODA-FABRIK AG 1 April 1970 [1 April 1969] 15330/70 Heading C2C Adiponitrile is produced by introducing powdered or molten adipic acid and ammonia concurrently into a fluidized catalyst bed at 250‹ to 420‹ C. and isolating adiponitrile from the reaction gases by rectification in a column, wherein sufficient steam is incorporated in the reaction gases subjected to rectification in the distillation column so that the molar ratio of water vapour to ammonia in the gas at the beginning of the rectification is from 0.8 : 1 to 1.5 : 1.
Patent GB-1313418-A (GB)
Title: Perambulators and like wheeled vehicles
IPC: B62B5/04
Filed: 1970-06-06
Abstract: 1313418 Hand-propelled-vehicle brakes TAN SAD-ALLWIN Ltd 29 April 1971 [6 June 1970] 27454/70 Addition to 1046089 Heading F2E A perambulator or like wheeled vehicle as in Specification 1,046,089 has wheel tread-engaging portions of the sprag means releasably connected to the shaft 10 for adjustment transversely of the shaft. A plate 12, fixed to the shaft 10, has a brake shoe 18, 20 at each end, the shoes being grooved and fixed to the plate by bolts 22 in elongated slots in the plate, to provide the adjustment. The shaft 10 is connected by a linkage 14, 16 to an overcentre lever handle or a pivoted lever in a slotted gate.
Patent GB-1313753-A (GB)
Title: Particle size analysis
IPC: G01N15/04
Filed: 1969-04-10
Abstract: 1313753 Particle size analysis by centrifugation ENGLISH CLAYS LOVERING POCHIN & CO Ltd 9 July 1970 [10 April 1969] 18567/69 Heading B2P [Also in Division G1] Particles smaller than a given size are separated from a particulate solid material by introducing a known weight of the material into a rotating centrifuge in the form of a suspension in a liquid, causing an elutriating liquid which is miscible with, and has substantially the same specific gravity as, the suspension liquid to flow through the suspension at a substantially constant linear radial flow velocity which is equal and opopsite to the velocity of separation of all particles having a size equal to said given size, whereby solid particles smaller than said given size are carried against the centrifugal force towards the axis of rotation of, and to the outlet of, the centrifuge and are thereby separated. The centrifuge comprises a bowl 1, Fig. 3, mounted on a shaft 4 supported in bearings 5 and driven through a belt 3 by means of an electric motor 2. The bearings 5 and the motor 2 are carried by a column 17 which also supports a collecting funnel 16. The centrifuge bowl 1, Fig. 2, includes an elutriating liquid reservoir 6 having an overflow weir 7 the radius of which can be adjusted by removable rings 8 in order to vary the pressure head of the elutriating liquid. The reservoir 6 is connected by tapering ducts 9 to an annular duct 10 contiguous with the inlet of a classification chamber 11 which has a horizontal lower surface 12 and a conical upper surface 13. The chamber 11 has an outlet comprising a weir 14 and spouts 15, Fig. 3, which extend into the funnel 16. The height of the chamber increases towards the axis of rotation of the centrifuge according to the formula h=h 1 .R 1 2/R<SP>2</SP> wherein R, is the radial distance of the chamber outlet from the axis of rotation of the centrifuge, h 1  and h are the heights of the chamber at radius R 1  and R respectively. With a chamber of this shape, a constant volumetric flow rate of elutriating liquid from the reservoir 6 gives the required linear radial flow velocity through the chamber 11. In operation, the centrifuge is set in motion and elutriating liquid is allowed to flow into the duct 10 from reservoir 6 until it reaches the inlet of the chamber 11. A quantity of suspension of the particulate material just sufficient to fill the classification chamber is then introduced into the latter, e.g. by means of a syringe 18 which discharges into the inlet of the chamber. When the elutriating liquid begins to overflow the weir 7 and the pressure head and volume flow rate of the liquid reaches a steady state, the timed period is begun. The suspension of elutriated particles flows over weir 14 and through spouts 15 into funnel 16 and thence to a collecting vessel. At the completion of the timed period, the collected solid particles are separated from the elutriating liquid and dried and the weight of dried particulate material determined gravimetrically. Alternatively, the weight of the particles can be estimated photometrically.
Patent GB-1323935-A (GB)
Title: Fluent material feed unit
IPC: B24B57/00
Filed: 1970-08-26
Abstract: 1323935 Grinding CLEVELAND-GUEST (ENG) Ltd 26 Aug 1971 [26 Aug 1970] 40982/70 Heading B3D A head for feeding fluent material, such as a slurry consisting of abrasive particles and a liquid such as oil and paraffin, to a lapping plate in a lapping machine, comprises a first hollow body 6 extending within a second hollow body 1 and having an inlet opening 8 for connection to a source of fluent material and a first outlet aperture 9 disposed within the confines of the second body, the second body having a second outlet aperture 11 disposed adjacent to and spaced from the first outlet so as to receive some of the fluent material expelled from the first outlet aperture for delivery to the lapping plate, the remaining fluent material passing through the space between the bodies to an outlet opening for connection to the source. The body 2 consists of a metal tube tapering at one end 2 and provided with a plug 3 at its other end in which the first body in the form of a rod 6 is disposed. A blind passage 8 extends through the body 6 and at its closed end communicates with a radial passage 9 forming the first outlet 9. The outlet is adjacent a nozzle 11  in the body 1 forming the second outlet. Both bodies are connected to flexible tubes 18, the inner leading to connection 16 from a pump and the outer to a return 17 to the pump. A knob 10 is secured to the rod 6 to rotationally adjust the rod to positions determined by a spring 15 engaging splines 14 on the rod to vary the alignment of the outlet apertures and hence to adjust the amount of fluent material passing from inlet 9 to outlet 11 and dripping on the lapping plate from a maximum to zero.
Patent GB-1329708-A (GB)
Title: Making pipes from master pipes
IPC: B21D7/12
Filed: 1969-12-31
Abstract: 1329708 Angular bending DEFENCE SECRETARY OF STATE FOR 30 Dec 1970 [31 Dec 1969] 63531/69 Heading B3E [Also in Division G1] A replica of a master pipe or rod 26, Fig. 1, having angularly related straight portions S1, S2, S3 interconnected by bends B1, B2, is made by taking measurements of the master in a spatial co-ordinate system, feeding the measurements in digital or analogue form into a computer, and causing the output of the computer to control a bending machine 50, Fig. 7, so as to bend straight pipe or rod stack 58 into the shape of the master. The measurements are taken at two spaced points on each straight portion by a V-shaped probe 14 mounted on a graduated bar 12 slidable vertically in a carriage 10 which is movable horizontally along a graduated bar 8 fixed to a further carriage 6 movable horizontally, along another graduated bar 4. Alternatively, measurements may be taken at a single point on each straight portion together with the relative angular positions of two adjacent straight portions. Another measuring device, Fig. 4 (not shown), is provided for use with pipes (58) in situ on an aircraft engine. The bending machine, Fig. 7, comprises an indexed chuck 56 for gripping the pipe or rod stack 58, slidable along a guide 52 provided with linear indexing mechanism 70. The stock is bent around a mandrel 64, by a vice 61, with the extent of bending being determined by an indexing mechanism 68.
Patent GB-1329980-A (GB)
Title: Laminated cookware
IPC: C23D5/00
Filed: 1970-10-27
Abstract: 1329980 Laminated cookware N S RACZ 27 Oct 1970 [ 15 Jan 1970] 57446/72 Divided out of 1329979 Heading A4A The subject matter of this Specification is identical with that of Specification 1329979, but the claims relate to the conductivity of the base being greater than that of the side walls.
Patent GB-1334572-A (GB)
Title: Method for preparation of a filter element
IPC: B01D29/00
Filed: 1971-01-13
Abstract: 1334572 Filtering liquids TOSHIN SCIENCE CO Ltd 13 Jan 1971 1755/71 Heading B1D A filter element having pores of diameter 0.1 to 5 microns is prepared from a dry fibrous or powder material which swells in contact with a designated liquid by compressing the dry material to form a compressed body, immersing said body whilst still under compression into a liquid which is chemically inert but swells the fibres or powder particles and then storing the body in the liquid-swollen condition for use in filtration. Suitable filter materials are cotton fibres, e.g. leached cotton fibres having diameters of 1 to 2 microns, artificial fibres, e.g. of diameter 2 to 3 microns, asbestos wool, pulppowder or mixtures thereof. Specified swelling liquids are water, beer or oil, these liquids being the same as it is intended to filter using the element. In Fig. 1 a filter is shown which is formed of three identical filter elements 11a, 11b and 11c mounted on a vertical perforated central tube 14 secured to a bottom plate 15, the filter elements being separated by packing rings 13. Each filter element comprises the swelled powder or fibres (21, Fig., not shown) compressed about a perforated tube (17) having annular upper and lower supporting flanges (186, 196).
Patent GB-1335023-A (GB)
Title: Radar simulators
IPC: G01S7/40
Filed: 1970-11-27
Abstract: 1335023 Radar simulators; pulse lengthening circuits SOLARTRON ELECTRONIC GROUP Ltd 27 Nov 1970 [1 Dec 1969 (2) 8 May 1970] 58550/69 58623/69 and 22451/70 Headings H4D and H3T  In a radar simulator signals are generated which depend on the assumed direction and speed of a target T and at least one radar base B, the absolute positions of T and B are derived therefrom in Cartesian co-ordinates, the differences between corresponding of T and B are obtained to provide relative Cartesian co-ordinates in digital form, a converter affords relative position digital polar range and bearing coordinates R, #, co-ordinate R is fed in parallel into a range store 28, Fig. 1, co-ordinate 0 25 is fed serially into a bearing store of lower speed than the range store, and the stores are scanned to afford a signal for a plan-position indicator (P.P.I.). In the embodiment there are included the following features: (a) three bases; (b) range-dependent azimuth beamwidth is utilized as described in Specification 1,335,022; (c) each video pulse generator 30 receives an input to indicate maximum range of the corresponding radar base and its vertical radiation pattern; (d) the output of a video pulse generator is stretched by a circuit, see below; and (e) random noise is added to simulate "glint". A video pulse generator may include transistor long-tailed pairs in cascode, Figs. 2 and 3 (neither shown). In the scanning of the range stores they are counted down to zero for each P.P.I. scan, a pulse being generated when a store reaches zero, and counting continues until the original contents are restored. Pulse lengthening circuit. Fig. 4.-A pulse stretching circuit has a capacitor C1 connected to an input to detect the peak amplitude of input pulses, a switch D2 is connected across the capacitor and a time-delay circuit G1, G2, G3, C2, T2 and D3 is connected between the input and the switch D2 so as to close the switch a predetermined time after the occurrence of an input pulse. Normally, bi-stable Gl, G2 opens diodes D2, D3 to short the capacitors C1, C2. When an input pulse is applied the bi-stable G1, G2 becomes set and diodes D2, D3 are closed so that capacitor C2 charges via R2. The voltage across C1 follows the amplitude of the input pulse so that the output voltage from transistor T1 is proportional to the input pulse amplitude. After a time-delay the input to gate G3, due to the charge on the capacitor C2, exceeds the threshold voltage of the gate and the bi-stable G1, G2 is reset. Diodes D2 and D3 open to discharge the capacitors C1, C2 and the output pulse. The resistor R3 increases the charging current into capacitor C2 for input pulses of small amplitude so that the length of the output pulses are slightly reduced. If a second input pulse is received before the first is finished, transistor T3 discharges capacitor C2 so as to restart the cycle.
Patent GB-1336813-A (GB)
Title: Arrangement for supporting one end of rod or rail
IPC: A47K10/10
Filed: 1972-08-17
Abstract: 1336813 Brackets; towel rails HAGO PRODUCTS Ltd 17 Aug 1972 [1 Sept 1971] 40741/71 Headings A4B and A4U A rail or rod 33 or 36, e.g. for curtains or towels, is supported at one or both ends by a wall attachment fitting having a central bore 24 with two diametrically opposed slots 25, 26 extending the full length of the bore 24 and with two blind slots 27, 28 extending from a recess in the back of the fitting part-way only of the length of the bore 24, the rod 33 or 36 having a pair of lateral projections 34 or 40, and engagement being effected by sliding the projections 34, 40 along the slots 25, 26 and through the bore 24, rotating the rod through 90 degrees, moving the projections into the blind slots 27, 28 and securing the fitting to a wall whereby the projections are prevented from leaving the blind slots 27, 28. The towel rail may comprise a pair of cranked end rods 36 with horizontal rails 38, 39 extending between them.
Patent GB-1337287-A (GB)
Title: Modular system for pneumatic control
IPC: F15B13/00
Filed: 1970-12-22
Abstract: 1337287 Clamps CROUZET 22 Dec 1970 [22 Dec 1969] 60939/70 Heading E2B [Also in Division G4] A fastener for connecting a rod 6 at a selected position along a channel-like support 1 comprises a moulded plastics block 2 slidable in the channel and formed with a metal plate 3. A shoe 4 is secured to the block 2 by a screw 7. When the screw is tightened one flange of the support 1 is clamped between the block 2 and shoe 4 to prevent sliding movement. The shoe carries a spring clip which grips the rod 6. The rods support fluidic circuit components, see Heading G4P.
Patent GB-1341798-A (GB)
Title: Pattern drums for knitting machines
IPC: D04B15/74
Filed: 1972-09-01
Abstract: 1341798 Knitting machines WIRKMASCHINENBAU KARL-MARX-STADT VEB 1 Sept 1972 40718/72 Heading D1C A pattern drum 1, for a knitting machine, has annular grooves, e.g. being formed by a stack of discs 5, 6 of two sizes, and rods 9 extending parallel to the drum axis wherein cams 12 having a resilient recess are engaged over a rod 9 and in a groove where there is a projection 8 to engage the open end of the cam recess. Discs 5, 6 alternately keyed on a body 2 are clamped by a pressure piece 15 which is engaged by a nut 11 screwed on to an extension of body 2. Rods 9 pass through holes 7 in discs 5 and are held at their ends in drive disc 4 and disc 10.
Patent GB-1342894-A (GB)
Title: Mount for display material
IPC: B42F17/00
Filed: 1971-04-19
Abstract: 1342894 Mounts for indexing strips R W BULMER and A W STEVENS 19 April 1971 [13 Feb 1970] 7056/70 Heading A4X [Also in Division B6] A mount for indexing strips 12 comprises a backing sheet 2 gripped in a channel 7 in four mitred plastics edging members 4, the edging members including lips 10 spaced from sheet 2 so that indexing strips 12 or sheets can be trapped between the sheet 2 and the lips 10. The strips 12 are protected by transparent films 14. The mount may be divided in to two sections by a spacing member (16), Fig.3 (not shown) inserted beneath the lips by one pair of opposed edging members 4. The edging members 4 each have an outer groove 18 with an inner enlarged circular portion 20 for a pivot pin 22; or the groove 18 may receive an apertured plastics strip (24), Fig. 1 (not shown) for locating in a ring binder, or it may receive indexing tabs.