baber/WOPTO huggingface dataset:
Patent GB-1264553-A (GB)
IPC: E02B3/12
Filed: 1969-05-14
Abstract: 1,264,553. Linings for dams and waterways. BITUMARIN N.V. 14 May, 1969 [16 May, 1968], No. 24615/69. Heading B5N. [Also in Divisions B6 and E1] Slabs for lining dams, waterways and the like are made of an asphaltic composition, interspaced at their edges and interconnected by a flexible material i.e. fabric, woven mat or netting, which may be made of wire, metal strips or plastics. The flexible material may form a continuous backing for the slabs. Alternatively said material may be connected to similar material providing internal or external reinforcement for the slabs. The asphaltic composition is a mixture of bitumen with a filler such as sand, stone fines, and/or gravel, the bitumen being mineral oil residue, a component thereof, coal tar and/or coal-tar pitch. The volume of bitumen may be greater than that of the filler. The slabs may be square or rectangular and disposed in the manner of a masonry bond. A layer of sand-tight material may be placed beneath said flexible material. To facilitate drainage the slabs may be perforated or contain passages formed by water-permeable asphaltic composition.
Patent GB-1264716-A (GB)
IPC: G11B19/20
Filed: 1969-10-28
Abstract: 1,264,716. Magnetic record discs. BURROUGHS CORP. 28 Oct., 1969 [1 Nov., 1968; 10 Sept., 1969], No. 52691/69. Heading G5R. To reduce vibrations in a rotary magnetic disc assembly, two or more adjacent discs 8, 9 are held in contact near their centres by hubs 6, 7 attached to a shaft 1, but are allowed some relative movement at their peripheries. One face 8, 11 of each disc carries a magnetic coating. Alternatively, a single disc (31, Fig. 3, not shown) coated on both faces may be placed between two discs (30, 32) of smaller diameter, and all three held together by hubs (33, 34).
Patent GB-1265438-A (GB)
IPC: A01B41/06
Filed: 1970-04-10
Abstract: 1,265,438. Photo electric plant-row thinner. EVERSHAM MFG. CO. 10 April, 1970, No. 17238/70. Heading A1B. A photo-electrically controlled plant-row thinning - implement removes, by cutting through the roots, plant whose stems have a thickness less than a pre-set value. The cutting elements oscillate about a longitudinal axis, parallel to the plant row andto the direction of travel of the implement which is from left to right in Fig. 2, at a speed of, say, 2 m.p.h. A transverse tool beam 12 carries several frame beams 22 each of which is aligned with the plant row. Fixed to each beam 22 is a channel-shaped mounting bracket 20 which supports a disc-weeder 78 and a longitudinally telescoping photocell-supporting arm 30. The angle of the arm 30 is adjustable by means of springs 33, 35 and rod 32. From the rear end of the arm 30 depends a row-spanning yokebar 39 on the opposite arms of which a lightsource 43 and the receiving photocell assembly are mounted. Supported on the light-shielding plates 46, which are attached to the yoke bar 39, are two discs 49 which gently raise the leaves of the plant so that the light beam intercepts only the stem of each plant. The electronic control box 73 processes the photocell output and controls the flow of compressed air through a four-way solenoid-actuated airvalve assembly 65 in order to operate a pair of thinning knives which have blades 52 and 53 mounted on arms 54 and 55 which oscillate, rigidly attached to each other, on a knife shaft 56 which is attached to the frame-beam 22 by the bearing-plates 57. A below standard plant stem is cut as in Fig. 10 by the blade running under the surface of the soil. When the light beam is interrupted by a plant stem for a sufficiently great length of time the knife assembly swings clockwise about the shaft 56 with the result that the blade 52, which was approaching the plant stem, is swung clear to the left while the blade 53 enters the soil ahead of the plant leaving the plant in an uncut gap of a length essentially equal to the spacing of the knife arms 54 and 55 on the shaft 56. The light beam is now automatically extinguished and the knife blade 53 cuts through the soil for a pre-set distance, regardless of any plants in its path, after which the blades swing back in an anticlockwise sense, the light beam is restored and the thinning cycle may repeat.
Patent GB-1266910-A (GB)
IPC: B23Q3/10
Filed: 1969-05-29
Abstract: 1,266,910. Milling. C. OTTOWAY. 4 Dec., 1969 [29 May, 1969], No. 27298/69. Heading B3K.  A vertical milling attachment for a horizontal milling machine of the type having a retractable overarm 10, comprises a slideway 12 adapted to be mounted on the overarm and a milling head 14 pivotally connected to a slide member 28 so as to be movable from an inoperative position (shown dotted) to its operative position in which it is fastened to the spindle nose of the machine.
Patent GB-1290569-A (GB)
IPC: G01N27/16
Filed: 1970-09-02
Abstract: 1290569 Measuring combustible gas concentration electrically; photo-electric apparatus MINE SAFETY APPLIANCES Co 2 Sept 1970 [26 Sept 1969] 42044/70 Headings G1A, G1N Apparatus for indicating the concentration of combustible gas comprises a Wheatstone bridge with a reference platinum filament 8 in a sealed chamber 2 and a heated catalytic detector filament 9 in a chamber 3 through which sample gas flows so that unbalance current through meter 18 indicates combustible gas concentration and is characterized by a photo-electric cell 21 disposed in the sample chamber so that when combustible gas concentration reaches a lower explosive limit and the filament emits radiant energy the cell resistance is decreased, transistors 25 and 28 are enabled and the meter current is maintained at a predetermined value to indicate an explosive concentration. Transistor 29 also is enabled and holds transistors 25, 28 on, even for higher concentrations which extinguish the glow on the filament, so that an explosive concentration is indicated until reset button 23 is actuated. In an alternative embodiment, utilizing a photoelectric cell of which the resistance increases when exposed to radiant energy, the positions of the cell 21 and the resistor 36 in the circuit are interchanged.
Patent GB-1295777-A (GB)
IPC: B01D29/11
Filed: 1970-04-03
Abstract: 1295777 Securing filter elements FILTERITE CORP 3 April 1970 15830/70 Heading BID [Also in Division E2] One or more tubular filter elements 24 are secured to respective ferrules 22 in a tube plate 16 dividing a filter housing (Fig. 1, not shown) by mounting means comprising two telescoping parts 25, 27 urged by tension spring 28 to their contracted position, part 27 having an integral head 36 which engages the top of the element, through whose central passage the parts 25, 27 extend to enable hook 26 on part 25 to engage the ferrule 22 (Fig. 2, not shown). Part 25 has a pin 35 sliding in a slot 33, 34 in tubular part 27, and during assembly the pin engages in part 34 to lock the parts 25, 27 in their extended position while hook 26 is moved into place (Fig. 3, not shown). Head 36 is then turned to release the locking, and lowered on to element 24 as parts 25, 27 close up. Figs. 5 to 7 (not shown) illustrate a mounting means comprising two telescoping channels, of which one bears a rotary pawl engaged by abutments on the other, successive axial movements of head 36 rotating the pawl from a position wherein the channels are locked in the extended position to one in which they are free to close up under the action of spring (57).
Patent GB-1296529-A (GB)
IPC: E06B9/06
Filed: 1968-12-31
Abstract: 1296529 Trelliswork L B (PLASTICS) Ltd 30 Dec 1969 [31 Dec 1968 13 Feb 1969] 1991/ 72 and 4536/72 Divided out of 1296528 Heading E1X A lattice or trellis comprises an assembly of struts or slats connected by rivets the terminal portions of which project beyond the faces of the trellis so that in use the lattice will be spaced from the surface to which it is attached. The rivets are preferably made of plastics material, are tubular and may be circular or non-circular according to whether folding or rigid trellis is required. Various modifications of heads or flanges at the terminal portions are described; one head has slots so that it may be compressed and driven through holes in the struts; another has an undercut flange 11 with which a circlip 12 is secured; another lead is formed by spinning an end of the rivet over; two-part rivets with parts fitting within each other and secured by adhesive or friction welding may be used.
Patent GB-1296730-A (GB)
IPC: G11B5/55
Filed: 1970-09-09
Abstract: 1296730 Magnetic recording and playback MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 9 Sept 1970 [18 Sept 1969] 43243/70 Heading G5R A magnetic head 1 is stepped across a rotating magnetic recording medium 2 by a reversibly rotatable stepping motor 3 driven by a pulse source 12 under the control of apparatus comprising a gate circuit 10 which selectively directs the output of the driving pulse source 12 to either a forward rotation input terminal A or a reverse rotation input terminal B of the stepping motor 3, a reversible counter circuit 7 which counts pulses applied to the motor 3, a command circuit 8 which is set to a count corresponding to the desired position of the head 1, a comparison circuit 9 which controls the gate circuit 10 in accordance with the difference in counts between the command circuit 8 and the reversible counter circuit 7, and a coincidence circuit 11 which is actuated by the output of the comparison circuit 9 when the values of the two counts coincide so as to cause the gate circuit 10 to block the output of the driving pulse source 12, thereby preventing further stepping of the head 1.
Patent GB-1301305-A (GB)
IPC: B29C48/07
Filed: 1969-12-31
Abstract: 1301305 Extruded reinforced structures INDUSTRIE PIRELLI SpA 31 Dec 1969 [4 Jan 1969] 63457/69 Heading B5A An in-line extrusion head 1 for the extrusion of an uncured elastomeric tube reinforced with longitudinally extending spaced metallic wires or non-metallic threads 17, and which tube is then cut into a flat belt by a blade carried by the head 1 or is divided prior to extrusion by a flow interrupting block within the annular orifice 11, comprises an annular section duct 8 which progresses outwardly from the extruder barrel 9 to terminate adjacent an annular orifice 11 which is defined by a pair of first replaceable annular elements 12 and 13, a second replaceable annular element 3 being provided with spaced passages 16 for the passage of the wires 17. In the Fig. 1 embodiment the passages 16 are provided with tubes 18, tapering at 19, which guide the wires into the region adjacent the orifice 11 where the drag of the elastomeric material acts to tension the wires. The pitch circles of the orifice 11 and the passages 16 are equal with respect to the axis of the head 1. In the Fig. 2 embodiment (not shown), the tubes 18 are omitted and the pitch circle of the orifice (11) is greater than that of the passages (16), the wires (17) being tensioned by the drag of the elastomeric material, acting radially outwardly, and rearwardly along the passages 16. The head 1 comprises elements 4, 5 and 6. The pitch diameter of the orifice 11 is preferably not greater than three times the inner diameter of the passage 8.
Patent GB-1304775-A (GB)
IPC: G02B21/00
Filed: 1970-08-03
Abstract: 1304775 Measuring polarisation photoelectrically CARL ZEISS JENA VEB 3 Aug 1970 37343/70 Heading G1A [Also in Division G2] In a polarisation microscope or interferometer in which light from a preferably monochromatic source is received by a photocell 21, a half-shadow plate i.e. one having two different portions 1, 2 which rotate the plane of polarisation of incident light in respective different directions, is vibrated in its own plane to provide a modulated photo-cell output whose phase relative to the a.c. frequency of the vibrating plate is indicative of the rotation in polarisation direction caused by a test sample 15. The microscope includes lenses 14, 16, 19 and an adjustable square diaphragm 20. The polarising elements are a polariser 13, analyser 18 and a Soleil-Babinet compensator 17. The halfshadow plate 1, 2 is vibrated such that the image of the separating line 22 appears just beyond the edges of the diaphragm 20 when the plate assumes its extreme positions. The compensator 17 is adjusted so that with the plate in its central position, the halves 1 and 2 are respectively dark and light, this constituting the zero position of the instrument. Hence, in one extreme position of the plate the photo-cell 21 receives no light, at the other extreme it receives maximum illumination, to give an a.c. output whose phase is compared with that of the exciting oscillator 11 in a phase-sensitive rectifier 24. If the sample 15 rotates the plane of polarisation of the light beam, the resulting changed phase relationship is indicated on a meter 25. Alternatively the signals from the photo-cell and oscillator may be combined in a servomotor 26 which drives the compensator 17 to continuously compensate for polarisation changes in a null arrangement. Various constructions of half-shadow plates are described, Figs.3-8 (not shown).
Patent GB-1306554-A (GB)
Title: Organic phosphorosilicon compound process for production thereof and flameretarding polymer composition containing same
IPC: C08K5/54
Filed: 1970-03-25
Abstract: 1306554 Phosphorosilicon compounds; selfextinguishing resins TOYAMA CHEMICAL CO Ltd 25 March 1970 44168/72 Divided out of 1306553 Headings C3P C3R and C3S Novel organic phosphorosilicon compounds of the formula wherein each A independently denotes unsubstituted or halogen-substituted C 1-4  alkyl, C 1-4  alkoxy, C 2-4  alkenyl, C 2-4  alkenoxy, C 6-8  aryl, C 6-8  aryloxy or benzyloxy, X and Y independently denote hydrogen, furyl, C 1-7  alkyl, C 2-7  alkenyl or C 6-8  aryl, R<SP>I</SP> and R<SP>II</SP> independently denote unsubstituted or halogensubstituted C 1-3  alkyl, and n denotes an integer of from 1 to 4, are prepared by reacting a phosphorous acid triester of the formula  (wherein T denotes unsubstituted or halogensubstituted C 1-3  alkyl), a carbonyl compound of the formula XCOY and a chlorinated silicon compound of the formula A 4-n SiCl n . The reactants undergo an Arbuzor rearrangement. Uses.-As flame-retarding agents for polyurethanes, polymethacrylates, polyesters, polyolefins, polystyrene, ethyl cellulose, nitrocellulose, acetyl cellulose, polymer coating compositions, fibres, rubbers and waxes. In examples self-extinguishing resins are prepared by curing a mixture of the above phosphorosilicon compounds with methyl methacrylate prepolymer and with a foamable polyurethane composition based on a polyether, polyphenyl isocyanate, dimethylethanolamine, monofluorotrichloromethane, silicone oil and a stabilizing agent.
Patent GB-1307792-A (GB)
Title: Evaluating apparatus for article conveying machines
IPC: B65H29/00
Filed: 1971-05-05
Abstract: 1307792 Feeding or delivering sheets POLYGRAPH LEIPZIG KOMBINAT FUR POLYGRAPHISCHE MASCHINEN UND AUSRUSTUNGEN VEB 5 May 1971 13135/71 Heading B8R [Also in Divisions B6 F1 and G4]  Apparatus for counting a plurality of longitudinally spaced articles, e.g. sheets 2 delivered by or fed to a processing machine (not shown) and carried along by a driven conveyer belt 1, and for stopping the belt drive when an article is missing, comprises a first compressed air nozzle 5 discharging downwardly against the belt whereby when an article 2 passes between the nozzle and the belt a back pressure is generated in a duet 12 and which pressure after being boosted at 13 is fed through a duct 15 to means 18 for connecting the pressure into an electric signal which is fed to a counter 20, and a second compressed air nozzle 8 discharging against a rotatably driven slotted disc 9 so that when an unslotted portion of the disc is opposite the nozzle 8 a back pressure is generated at 12<SP>1</SP> and after being boosted at 14 is fed at 15<SP>1</SP> to a known comparator 16 which has an output 17 only when a pressure is present at 15<SP>1</SP> and a pressure is absent in the output 15 of booster 13; the output at 17 being converted at 21 into an electric pulse which switches off the conveyer drive motor. The speed of rotation of disc 9 and the dimension of slot 10 is such that nozzle 8 is obturated at the same time as nozzle 5, and in order to allow for tolerances in the spacing of articles 2, the slot is made longer than the normal gap between articles. Thus the lock pressure in duct 12<SP>1</SP> begins later than that in duct 12 and finishes earlier.
Patent GB-1314016-A (GB)
Title: Fluid sampling devices
IPC: G01N1/20
Filed: 1969-07-04
Abstract: 1314016 Sampling liquids UNITED KING- DOM ATOMIC ENERGY AUTHORITY 2 Oct 1970 [4 July 1969] 33889/69 Heading B8N [Also in Division F2] A liquid sampling device comprises an inlet 20, an outlet 21, a sample outlet 11 leading to a sample container (not shown), and a flow divider 17 movable between a first position in which the sample outlet is closed and a second position (as shown) in which fluid can pass to the container and to the outlet 21. The flow divider is mounted on a rod 14 axially movable within a tube 13. A trigger 22 pivoted at 24 is pivotally connected at 27 to a yoke 26 secured to the rod. A spring 30 biases the rod 14 and trigger to the right.  To extract a sample, the trigger is manually pivoted to the position shown thus moving the divider to a predetermined second position. Appropriate adjustment of bolt 31 determines the second position of the divider. A microswitch 32 manually actuated when the trigger is manually pivoted effects marking of a record chart so as to record the period of time for taking each sample. The liquid, e.g. river water is introduced into the device by a pump.
Patent GB-1315149-A (GB)
Title: Non-woven tapes
IPC: D04H3/12
Filed: 1970-06-09
Abstract: 1315149 Adhesive coated tape SESAME INDUSTRIES Ltd 9 June 1970 27756/70 Heading B2E [Also in Division D1] One or both sides of a weftless tape consist of a layer of a hot-melt adhesive, said adhesive also serving to bond together the longitudinally extending filaments. The rayon, cotton or polyester filaments are arranged in one or two layers of parallel filaments, or as a twisted or untwisted bundle. The hot melt adhesive is a low molecular weight mineral, vegetable or petroleum wax, or a coumarone-indene, alkyd, terepene or phenol-formaldehyde resin, plus a high molecular weight ethyl cellulose, polyvinyl acetate, polyethylene, polystyrene or polyamide polymer, and is a non tacky solid below 150‹F, softening to an adhesive consistency at 175-350‹C. A latex or dextrin adhesive may be applied to one side of the layer or layers of warp filaments, with the hot-melt adhesive applied to the other, completely enclosing the filaments in a resin sheath, or hot-melt adhesive may form both sides of the sheath.
Patent GB-1317434-A (GB)
Title: High speed cameras
IPC: H01J31/26
Filed: 1969-05-16
Abstract: 1317434 High speed television camera JOHN HADLAND (PHOTOGRAPHIC INSTRUMENTATION) Ltd 18 May 1970 [16 May 1969] 25174/69 Heading H4F In a high-speed camera, Fig. 1, in which an image of a phenomenon is formed on a photocathode 12 and the resulting electron image is directed on to a screen 15 via an aperture 14 in an earthed anode 13, the image being periodically swept across an aperture 17 in a plate 16 by means of deflector plates 18 to which an oscillating (preferably sinusoidal) waveform is applied and immobilized by deflector plates 19 to which a similar but phase-displaced waveform is applied i.e. successive stationary images at two spaced positions (A and B, Fig. 4) are produced on the screen, and in which deflector plates 20 deflect the image at an angle (preferably 90 degrees) to the plane of deflection caused by the plates 18 and 19 in response to the occurrence of the phenomenon to be recorded, this deflection by plates 20 which produces successive pairs of images on the screen (see Fig. 4) is initiated irrespective of the phase of the waveforms applied to the deflector plates 18 and 19. The waveforms applied to plates 18 and 19 which are phase displaced by more than 180 degrees so that two distinct image residence positions are produced on the screen, are produced by a triggerable oscillatory circuit 21 connected to a feedback amplifier 23 that maintains the oscillations constant once the oscillator has been triggered 22. A further trigger 28 operable by the phenomenon to be recorded is connected to an amplifier and shaper 29 and then to a gating stage 30 which receives an input from circuit 21 so that the "steps" of the output of a staircase generator 31, which is applied to the deflector plates 20, occur concurrently with the positive peaks of the waveform applied to the shutter plates 18. In addition the output of 29 is connected directly to the staircase generator 31 so that the operation of the trigger 28 causes the first "step" in the output of the staircase generator 31 irrespective of the phase of the output of the oscillatory 21. The second and subsequent "steps" being governed by the phase of circuit 21. Trigger 22 is preferably operated shortly before the occurrence of the phenomenon to the recorded. In operation if trigger 28 is not operated subsequent to the operation of trigger 22 the images will continue to be formed at A and B, superimposed over the previous image. In dependence upon when trigger 28 is operated either images may be formed sequentially at all the positions A-H in Fig. 4, or positions C and D will be blank, or positions B and C will be blank.
Patent GB-1327363-A (GB)
Title: Electric lamps and electric discharge devices
IPC: H01K1/58
Filed: 1971-04-07
Abstract: 1327363 Lamp caps THORN ELECTRICAL INDUSTRIES Ltd 5 April 1972 [7 April 1971] 8981/71 Heading H2E An electrical connector for use in electric lamps or discharge tubes having glass to metal seals comprises an inner tungsten conductor 12 which is led from chamber 10 into pinch seal 11 and is connected therein to molybdenum foil 13 and thence to platinum plated molybdenum conductors 14 which extend out of the glass pinch seal 11 and are brazed to copper sleeve 16 by means of a silver containing copper brazing alloy, which is arranged such that the conductors 14 are totally enclosed and such that a meniscus 18 is formed when the alloy sets to provide a connection surface for co-operation with a contact pin of an electrical connector socket. An outer ceramic sleeve 19 encloses sleeve 16 and is provided with longitudinal slots so that it embraces the end of the seal 11 and is cemented thereto. The sleeve 16 may also be slotted.