baber/WOPTO huggingface dataset:
Patent GB-1095507-A (GB)
IPC: A01D34/535
Abstract: 1,095,507. Forage harvesters. S. G. WOOFFITT and W. S. D. NEWTON. Sept. 6, 1966 [Aug. 13, 1965], No. 34683/65. Heading A1F. The rotor of the forage harvester described in Patent number 995,460 is characterized in that the forward movement of the cutting elements 34 about pivots 33 is restrained by a tension rod 36 having an adjustable buffer 43. In an embodiment the cutting element has a limit stop which engages the rotor body 27 to restrainits forward movement. The apparatus can be used for topping beet or pulverising haulm.
Patent GB-1095592-A (GB)
IPC: E06B3/28
Abstract: 1,095,592. Glazing; clips. COSYGLAZE Ltd. Nov. 11, 1964 [Nov. 16, 1963], No. 45345/63. Headings E1R and E2B. A glazing system which may be used for adding a second pane to convert a single glazed frame to a double glazed frame comprises a slidable member 1 engageable with ithe edging frame 12 shown in phantom in Fig. 3 of a pane, and having a slot 17 of T- section coacting with a screw 22 on the main frame 9, the slot having an inclined surface 18 to produce a wedging action between the surface 18 and under surface of the screw head 22, so that when sliding relative movement between the two takes place the member 1 presses on the edging frame 10 and clamps it against the frame 9. A lug 19 on the member 1 and the edging frame have complementary rib grooves 20, 13. In an alternative form the wedging action is produced by a key hole slot appropriately inclined to the side of the member 1.
Patent GB-1143692-A (GB)
IPC: B66F9/18
Abstract: 1,143,692. Clamping attachments for masted lift trucks. EATON YALE & TOWNE Inc. 19 Aug.. 1966 [29 Sept., 1965], No. 37258/66. Heading B8H. A pair of carton clamps for a masted lift truck comprise metal plates slotted to form fingers 17 to which clamping pads 25, Fig. 4, are attached by resilient mountings 27. Five mountings are arranged as shown and are located on vertical lines which are 22.5% of the distance from the front and back of the pad. Each pad 25 has a facing of friction material, e.g. rubber, and the resilient mountings 27 each comprise a slab of rubber secured between two metal plates, Fig. 6 (not shown).
Patent GB-1227234-A (GB)
IPC: H04M19/08
Filed: 1968-06-28
Abstract: 1,227,234. Battery charging systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. 28 June, 1968 [30 June, 1967], No. 31126/68. Heading H2H. A system for charging a battery comprises means whereby the battery may be charged at one or other of two rates in dependence upon the charging current. A battery A is charged from a D.C. source E<SP>1</SP> by way of a transductor T, which transductor comprises windings supplied from an A.C. source V1 and which are arranged to energize the operating coil of a relay R by way of a bridge rectifier, the contacts of the relay R being arranged to connect the battery to points on a potentiometer across the D.C. source E<SP>1</SP> which have different potentials. The transductor T is further supplied with a bias winding fed from a D.C. source V2. Initially, when the battery is discharged the charging current is effective to cause the output of the transductor to energize the relay R sufficiently to change its contact to the higher voltage point. As the charging current falls the output of the transductor falls until the relay contact once more assumes its lower voltage point, the battery then charging at a lower rate. The transductor T has a characteristic having three sections the middle section of which is steep relatively to the other sections and the arrangement is such that the relay operates only when the transductor is operating in the steep section of the characteristic.
Patent GB-1229174-A (GB)
IPC: F25C1/24
Filed: 1967-01-20
Abstract: 1,229,174. Ice-making. J. C. KROGH. 20 Jan., 1970, No. 2748/70. Heading F4H. An ice tray 10 comprises a floor into which moulding cavities 12 are sunk and which extends around the cavities to form a circumvallant land 18 blending into an upstanding rim 19 so as to form a shallow trough and asymmetrically located hollow legs 20 project downwardly from the land. The upper and lower ends of the legs are open for filling when several trays are stacked, the lowermost tray having closed lower leg ends, and the trays may be of a flexible plastics material.
Patent GB-1231476-A (GB)
IPC: H01P9/00
Filed: 1968-10-22
Abstract: 1,231,476. Electromechanical delay lines. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 22 Oct., 1968 [27 Oct., 1967], No. 50048/68. Heading H3U. A microwave ferrite device, particularly a device for producing a delay, is constructed so the delay may be continuously varied over a range in which the lower and upper limits have approximately the ratio 1: 2. As shown, the device comprises a tri-plate line conducting structure consisting of outer plates 5, 6 except where they are connected by a transverse shortcircuit plate 3. The extremities of the plates 5, 6, 41 and 5, 6, 42 are connected, respectively to input and output coaxial lines (not shown). A cylindrical ferrimagnetic body 1, e.g. of yttrium iron garnet, is mounted in the plate 3 and is subjected to a variable magnetic field Ha having a direction parallel the axis Z of the body. The half-length L/2 of the body 1 is less than “ of the wavelength of the microwave energy to ensure that the amplitude of the field H of this energy is constant along the whole length of the body, this field being perpendicular to the axis Z. The field Ha causes the electromagnetic waves induced within the body 1 to be converted into spin waves, the particular position within the body at which this conversion occurs being determined by the strength of the field. The position of conversion determines the delay produced by the device and for maximum delay this conversion position is at B in the plane of the plate 3. The acoustic waves are reflected from B to the polished end face A of the body 1 whence they are reflected to end face D and then reflected back to a position C also in the plane of the plate 3. Thus the maximum effective delay length of the body 1 is 2L. For smaller delays the conversion position is brought nearer to the end faces A, D.
Patent GB-1238471-A (GB)
IPC: B29C69/00
Filed: 1968-10-31
Abstract: 1,238,471. Moulding plastic substances. DIAMOND SHAMROCK CORP. 31 Oct., 1968 [3 Nov., 1967], No. 51557/68. Heading B5A. [Also in Division F2] A tubular flattened web B e.g. of extruded plastic film, is fed from a reel C to a shaping and cutting unit A where it is advanced over a shaping mandrel 12 having a spreader portion 15 to form it to generally square cross-section. The web has external reinforcing ribs 10 with transverse seals 11, Fig. 4, and the mandrel has two edge forming vanes 16 spaced 90 degrees from the ribs. The mandrel is supported from below during the feed of a predetermined length of web thereover by one of six support mandrels 14 on a reciprocatory and rotary support 30 whereby they are brought in turn beneath the shaping mandrel pivoted to a vertical position and raised to the supporting position. The web is advanced by two pairs of pull rolls 17, 18 which squeeze together two marginal edges of the web by the vanes 16; two further pairs of rolls 19, 20 heat seal those adjacent edges to provide external ribs 21 with transverse reinforcing seals 22. When a predetermined length has passed over the mandrels 12, 14 cutters 25, 26 sever a sleeve 13 and co-operate with a perimetric groove 27 adjacent the end of the shaping mandrel to support it whilst the support mandrel 14 moves downwardly carrying the severed sleeve. In order to ensure that the sleeve is carried away with the support mandrel lugs 28 thereon are extended by cam mechanism to engage the seals 11 or 22. The support mandrels are mounted on rods 29 pivoted to the support 30, and during rotary intermittent movement of the support consequent upon a mandrel receiving a severed sleeve the bottom end of the sleeve is folded and sealed to form a closure. Each support mandrel has sealing element 33 for this purpose. The thus formed closed ended container is transferred to a star wheel E supplying a filling unit F.
Patent GB-1250179-A (GB)
IPC: H01C10/22
Filed: 1968-10-24
Abstract: 1,250,179. Variable resistors. NIPPON KOGAKU K.K. 24 Oct., 1968 [24 Oct., 1967], No. 50555/68. Heading H1S. A variable thin film resistor, has resistive film portions disposed in a track over which the contact 7 passes and formed from the same material with a constant resistance per unit area. Some of these portions (in sections A-C) are continuous whilst others (in sections D and E) are interconnected by parts of another resistive film having a different resistance per unit area. To secure a non-linear characteristic, parts of the first resistive film may be toothed as at B, serpentine as at C; have parts interconnected by film of different resistance as at D, or be made into a serpentine pattern by the addition of parts of a different resistance material as at E as well as employing a wedge-shaped truck as a A. Arc-shaped or linear tracks may be used and sputtering or vacuum evaporation may be used to deposite the parts of the two resistive films through masks. The thickness of the resistive films may be varied.
Patent GB-1258249-A (GB)
IPC: C07C309/30
Filed: 1968-10-14
Abstract: 1,258,249. Alkylbenzene sulphonic acids. UNILEVER Ltd. 14 Jan., 1970 [14 Oct., 1968], No. 48684/68. Heading C2C. Free alkylbenzene sulphonic acids containing an alkyl chain of 8-18 carbon atoms are treated with at least 1% by weight of a basic organic compound, a glycol, an aliphatic alcohol of 8-20 carbon atoms or an alkanolamide, whereby the stability of the products to storage is improved. Specified additions are ethanolamine, triethanolamine, ethylene glycol, a synthetic C 12 -C 15  alcohol, the ethanol amide from coconut fatty acids and urea. An example is given.
Patent GB-1258764-A (GB)
IPC: B02C13/284
Filed: 1968-10-16
Abstract: 1,258,764. Making hammer-mill screens. CHRISTY & NORRIS Ltd. 2 Jan., 1970 [16 Oct., 1968], No. 49150/68. Heading B3A. [Also in Division B2] A hammer-mill particularly for grinding provender includes a cylindrical or part cylindrical screen 14 which has parallel perforate zones 15 separated by parallel imperforate zones 16 arranged so that the zones swept by the hammers 13, Fig. 4, are between the perforate zones. The screen may be made by appropriately perforating a sheet or by seaming, e.g. welding imperforate bands to a perforate sheet, and thereafter forming it into a cylindrical in part cylindrical shape. Alternatively perforated strips may be secured by nuts and studs to an apertured framework. A framework 17, Fig. 5, having studs 22 has elongate apertures 21, Fig. 6, arranged in rows a . . . d. Perforated strips, Fig. 7 (not shown), are clamped by a member, Fig. 8 (not shown), and framed by a framework, Fig. 9 (not shown). The screen apertures are from 1/16 inch to # inch, the diameter of the screen 10 inches to 30 inches and the length 2 inches to 30 inches.
Patent GB-1258817-A (GB)
IPC: A47L9/04
Filed: 1969-04-15
Abstract: 1,258,817. Electric couplings. CONSOLIDATED FOODS CORP. 15 April, 1969 [20 May, 1968; 11 Oct., 1968], No. 45985/70. Heading H2E. [Also in Division A4] A telescoping wand, particularly for providing a suction conduit and electrical connection between a suction cleaner and a suction nozzle having an electric motor driven brush, comprises outer and inner wand sections 111, 112, a rigid member 117; secured to the inner section 112 and slidable within a channel 113 secured to the outer section 111, and including a pair of conductors connected to electrical contacts 122 on a slide 118 which slidably engage elongated contacts 115 in the channel 113. Opposite ends of the contacts 115 and of the conductors in the member 117 terminate in plug pins 116 and a socket 120, respectively. The plug pins 116 are received in a socket in a handle 10 (Fig. 3, not shown) and connected to brushes (38) in contact with slip rings (13) engaging tags (14) on conductors extending along a flexible base, which is rotatable relatively to the handle.
Patent GB-1289339-A (GB)
IPC: G03F7/105
Filed: 1969-10-27
Abstract: 1289339 Photo-initiated polymerization process GAF CORP 27 Oct 1969 [4 Nov 1968] 52480/69 Heading C3P [Also in Division G2] A process for the photo-initiated polymerization of a liquid or solid monomer containing the grouping comprises exposing the monomer to electromagnetic radiation having a wavelength within the ultraviolet to visible light range in the presence of a compound of the general formula wherein A represents an oxo radical, B represents a diazo radical, C represents a sulphonic acid radical and the circle represents a ring system selected from cyclohexane, cyclohexene, cyclohexadiene and at least partially hydrogenated naphthalene, and contacting the exposed monomer and said compound with an aqueous reducing agent, the reducing agent being selected from ascorbic acid, stannous chloride, ferrous chloride, cuprous chloride, ferrous ammonium oxalate and ferrous ammonium sulphate. The polymerization process yields a coloured image (resulting from the in situ formation of an azo dye). Monomers which can be polymerized include acrylic or methacrylic acid and amide, nitrile, salt and ester derivatives thereof, vinyl acetate, benzoate or butyrate, vinylpyrrolidone, vinyl alkyl ethers and butadiene, and mixtures such as ethyl acrylate/vinyl acetate, acrylonitrile/styrene and butadiene/acrylonitrile; and/ or a polyvinyl monomer, e.g. methylene-bisacrylamide, triallyl cyanurate, divinyl benzene, divinyl ketone or diglycol diacrylate. The polymerizable composition may include a natural or synthetic colloid carrier (e.g. polyvinyl pyrrolidone) and is carried on a suitable support material, e.g. cellulosic, metal, plastic or glass.
Patent GB-1289912-A (GB)
IPC: G06G7/161
Filed: 1971-05-06
Abstract: 1289912 Measuring speeds electrically ROBERT BOSCH GmbH 6 May 1971 [13 May 1970] 13495/71 Heading G1N [Also in Division G4] The ratio of the rotational speeds of a powered and an unpowered axle of a vehicle e.g. a tractor, is measured by an electronic ratio meter comprising two tachometer generators 11, 12, whose output frequencies are proportional to the two speeds, these outputs being fed to pulse shaper circuits 13, 13<SP>1</SP> producing pulse trains of corresponding frequencies and fixed pulse width which are fed to an analogue divider circuit 20 giving an output signal proportional to the ratio being measured. As shown each pulse shaper comprises an amplifier 14, 15, a Schmitt trigger 16, 17 and a monostable multivibrator 18, 19. The two pulse trains are fed on lines 25, 26 to a divider stage 20 comprising an operational amplifier 22 with two inputs 30, 31 and an output 32. A feedback loop 40 includes a multiplier 21 having an output connected to the input 30, and two inputs one of which is connected to the line 25. The output 32 is connected by an amplifier 23 to a meter or a control device 24 for operating a plough. Let U x , U y  and U z  be the signals at 27, 31 and 32 respectively. Therefore the inputs to the multiplier 21 are U x  and U z  and its output is U x .U z  which is fed to input 30. If α is the gain of the amplifier 22 then and hence If αU z   1 then In the circuit for the divider stage 20 disclosed in Fig. 2 (not shown), the multiplier comprises a transistor 42 in the feedback loop of an amplifier 22. Phase reversal for the signal U y  is effected by a transistor 41. A further embodiment Fig. 3 (not shown) includes a further operational amplifier in order to match the output signal with the control device the feedback loop being taken from the output of this amplifier. A transistor circuit diagram for the pulse shaper comprising amplifier 14, Schmitt trigger 16 and monostable vibrator 18 is disclosed, Fig. 4 (not shown).
Patent GB-1289928-A (GB)
IPC: F01N13/02
Filed: 1971-06-21
Abstract: 1289928 Treating exhaust gas AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 21 June 1971 [16 July 1970] 28923/71 Heading F1B Catalytic exhaust gas treating device has two cleaners 11, 12 mounted in series, one containing an oxidizing catalyst and the other a reducing catalyst and a by-pass pipe 9 and a valve 24 for directing the gas through either the cleaners or the by-pass pipe, the device consisting of a single enclosure defining two chambers containing the cleaners, the by-pass pipe being between the chambers and there being means 15 and 10 for connecting the outlet of chamber 11 to the inlet of chamber 12. The enclosure is a box 1 which is divided by three partitions 4, 5 and 6 into two wide compartments 7 and 8 and two narrow compartments 9 and 10. The cleaners 11 and 12 are mounted at an angle on a plate 2 which closes the open side of the box 1. The cleaner 11 divides the compartment 7 into upper and lower wedgeshaped sub-compartments 7α and 7b respectively. Similarly the cleaner 12 divides compartment 8 into sub-compartments 8α and 8b. Exhaust gas enters by a pipe 13, passes through an aperture 14 into sub-compartment 7α, travels downwardly through the cleaner 11 and then passes by a pipe 15 into compartment 10 which leads it to the inlet 16 above cleaner 12. After passing through the second cleaner, the gas leaves by a port 17 and an exhaust pipe 23. If the temperature of the device exceeds a predetermined value, a thermostat moves the valve 24 so that it closes aperture 20 and opens aperture 22. The exhaust gases then pass directly along the compartment 9 to the exhaust pipe 23.
Patent GB-1305463-A (GB)
IPC: B65G19/02
Filed: 1970-10-07
Abstract: 1305463 Endless conveyers GOUGH & CO (HANLEY) Ltd 7 Oct 1971 [7 Oct 1970] 47675/70 Heading B8A Apparatus for moving barrels B from a ground level conveyer 2 to an upper level platform 30 which may be on a vehicle comprises an endless conveyer movable along rails 6 parallel with the conveyer 2. The endless conveyer includes a framework 18 pivoted at a cross-shaft 14 to a framework 16 to permit adjustment of the height of the platform 30. Adjacent the platform is an operator's structure 50 which remains upright when the framework 18 is raised and lowered by a ram 48. Endless conveyer chains 38 are driven by a motor 44 and have roller arms 40 attached to cross-members secured to the chains. In operation the barrels are urged along floor sections 8, 20 and a transition section 26.
Patent GB-1305873-A (GB)
IPC: H01S5/022
Filed: 1971-10-28
Abstract: 1305873 Lasers STANDARD TELEPHONES & CABLES Ltd 28 Oct 1971 50081/71 Heading HlC The output of a semi-conductor laser is coupled to an optical fibre light guide which forms part of the laser resonator. In one embodiment, Fig. 1, the output from a P-N junction 2 in a GaAs-GaAlAs double heterostructure laser is passed through a rectangular slot 9 in a wholly reflective layer 8 and into an optical fibre 6. The other end of the fibre 6 has a multilayer reflector 7 which forms a resonant cavity with reflector 8, and which also transmits some of the laser output to fibre 4. This coupling arrangement is stated to raise efficiency by cancelling unguided modes. An anti-reflection coating may be provided on the output face of the laser to enhance laser outputs which are in resonance with the external cavity formed by reflectors 7 and 8. This cavity should have a length which is either a small fraction of that of the semi-conductor wafer 1, or a considerable multiple of it; in the former case the semiconductor may need to be tuned to one of the responses of the external cavity by adjusting the temperature by up to 20‹ C. In place of the Fabry-Perot modes of Fig. 1, an edge coupled circulatory mode may be used as in Specification 1,305,872. In Fig. 2b a four sided resonant semi-conductor 21 has a circulatory mode established by a shaped electrode overlying region 20. A matching layer 29, such as a ¥ wavelength layer, couples most of the circulating mode energy into a fibre resonator comprising wholly and partially reflecting layers 28 and 27 respectively. Because there are two counter-rotating modes, the output mirror 27 may transmit more of the incident radiation than that of Fig. 1. In another embodiment, Fig. 3, another circulating mode of Specification 1,305,872 is used; here the shape of the electrode overlying area 30 is such that the anticlockwise mode passes into the fibre at matching layer 36, along fibre core 35, and back into the active medium via layer 37. This latter layer is a “ wavelength thick (in the direction of travel of the radiation) and hence only a small portion of the mode sufficient to maintain oscillation enters through it, the remainder passing along the fibre to form the laser output. A reflector 38 at one end of the fibre couples any clockwise modes to the desired anti-clockwise one. To reduce the accuracy with which the device has to be made, the reflector on one face of the semiconductor may be replaced by a region of lower refractive index, to cause total internal reflection. A suitable lower refractive index portion may be provided by attaching to the face a length of optical fibre sectioned on a diameter along its length as in the above Specification 1,305,872.
Patent GB-1310379-A (GB)
Title: Tire tread
IPC: B60C1/00
Filed: 1970-12-10
Abstract: 1310379 Tire treads PPG INDUSTRIES Inc 10 Dec 1970 58578/70 Heading C3P A tire tread comprises a vulcanized rubber compound including the reaction product of a rubber, a siliceous pigment and a coupling agent A-R-B in which A is a group which bonds with the siliceous pigment and B is a group which bonds with the rubber polymer, R is preferably a hydrocarbon radical having 1 to 10 carbon atoms. Natural rubber, butadiene rubber and styrene-butadiene rubber may be used; silica is used as siliceous pigment and preferred coupling agents are mercaptopropyltrimethoxy- and mercaptopropyl-triethoxy silanes. Preferably 40 to 90 parts of finely divided silica and 0À1 to 15 parts of coupling agent per 100 parts by weight of rubber are used. Carbon black and other conventional rubber additives are present in the exemplified products.
Patent GB-1310681-A (GB)
Title: of flat items
IPC: B07C1/04
Filed: 1969-06-25
Abstract: 1310681 Feeding or delivering sheets POST OFFICE 25 June 1970 [25 June 1969] 32059/69 Heading B8R In order to detect when two or more flat items, for example envelopes being fed to a sorting machine, are being fed in superposed or partly superposed relationship instead of singly as is desired, each envelope such as 3, Fig. 1, is first aligned by one of its edges with a reference line 13, for example by gravity while being fed on edge on a conveyer belt, and is then, when it reaches a given point 21, rotated about one of its corners present at that point until a second of its edges lies in the line 13. A pair of detectors, e.g. photo-electric detectors 22, 23 is arranged so that in normal operation both detectors are never obscured at the same time during the rotation. If a second envelope 4 is present beneath the envelope 3, it will normally be spaced somewhat backwardly of the latter, so that will reach the point 21 and begin its rotation later. On the completion of the rotation of the envelope 3, the two envelopes together will subtend an angle greater than a right-angle at the point 21 and will obscure both detectors, whereupon a signal will be given and the envelopes diverted or rejected. The means for rotating the envelopes may comprise two conical or frusto-conical rollers, between which the envelopes pass and at least one of which has a resilient surface, contacting each other along the line 26 and with their axes intersecting at 21. One roller may be replaced by a series of spaced cylindrical discs, 36, Fig. 8, while the other may be replaced by second series of such discs 30 contacting the first series and driven through belts 32 by rollers 33 of varying diameter so as to be mechanically equivalent to a conical roller. The spacing between the envelopes 3, 4 if insufficient can be increased by transferring the envelopes from a faster to a slower conveyer before reaching the point 21. The detectors may also be utilized to control a timing device by means of which they can detect if the space between successive envelopes in the stream is too small.