baber/WOPTO huggingface dataset:
Patent GB-1131496-A (GB)
Title: Shears
Inventor: HOBSON DAVID
IPC: B23D31/04
Filed: 1965-10-06
Abstract: 1,131,496. Shearing. DAVY & UNITED ENG. CO. Ltd. 29 Sept., 1966 [6 Oct., 1965], No. 42401/65. Heading B3W. A reciprocating shear has a fixed blade holder and a movable blade holder which slides in a pivotally mounted guide, the blade holder being drawn away from the freshly cut edge of the work at the end of the cutting stroke by a horizontal linkage pivotally coupled between the guide and the shear frame and having an intermediate pivot point about which the linkage is pivoted by mechanical means at the end of the cutting stroke. The shear is one of a pair at opposite sides of a driven roller feed table 21 and a similar exit table 14. The strip is guided by a fixed fence 17A and a movable fence 17. The shear 12 is fixed and the shear 13 is movable transversely by a motor 19, which also drives one end of the fence 17 through the shafts 18. The other end of the fence is connected to the shear 13. Edge trimmings sheared off the strip are removed by a conveyer 30. The strip is positioned on the feed table by transversely-movable magnets 27 and there is also a longitudinally movable magnet 25 which is driven by a motor 24A which can be synchronized with the feed table motor 24. Each shear has a fixed blade 34 and a movable blade 35 carried by a holder which slides in a guide 37. Pins 38 project from each side of the guide and enable it to swing about an axis 40. The lower end of the guide has pivoted to it a horizontal link 57, the other end of which is connected by a pivot pin 62 to a second horizontal link 64 and to a toggle lever 70. The second end 66 of the second link is carried by a pin 67 which is eccentric to the axis of a shaft rotatable in the shear frame. By turning the shaft the lower end of the guide is moved to adjust the cutting clearance. The links are maintained in the straight-line position by a fluid cylinder 72 which holds the toggle lever 70 against a stop 69. A link 74 is mounted at 76 on an eccentric pin in the end of the crankshaft 46 of the press. It has a lost-motion connection by a slot 78 with the pin 62 and the angular position of the eccentric pin relative to the throw of the crankshaft is such that the link 74 lifts the pin 62 and breaks the toggle at the end of the cutting stroke.
Patent GB-1286324-A (GB)
Title: Transportation method in equipment of walking beam type
IPC: F27B9/20
Filed: 1969-08-27
Abstract: 1286324 Walking beam conveyers NIPPON STEEL CORP 27 Aug 1969 42573/69 Heading F4B [Also in Division B8] The movement of a moving beam of a walking beam conveyor comprises cycles of lineal upward, forward, downward and backward strokes the speed of the beam being reduced immediately before a load is transferred to the fixed beam and immediately before the load is lifted from the fixed beam. Shock imparted to the load is thus reduced. In Fig. 6, a device 6, having memorized a speed pattern comprising starting, medium speed operation, speed reduction and stopping applies the pattern to a voltage setter 7 connected to servo-devices 8, 9. A pump 10 energizes a cylinder 11 for actuating the moving beam. Fig. 7 (not shown) illustrates graphically the speed changes during the upward stroke of the moving beam. Switches (LS) are also used, in co-operation with the device 6, for the speed control. In a further arrangement, Figs. 8, 9 a midway speed reduction during the upward and downward strokes results from a portion m-m<SP>1</SP> of a cam 12 which supports rollers 14 of part of a moving beam assembly. The conveyor is particularly for use in  furnaces.
Patent GB-1111080-A (GB)
Title: Shock wave burners
IPC: F23C15/00
Filed: 1966-09-23
Abstract: 1,111,080. Lasers. SIEMENS-SCHUCKERTWERKE A.G. 23 Sept., 1966 [25 Sept., 1965], No. 42701/66. Heading H1C. [Also in Divisions E1 and F4] In a shock wave burner comprising a combustion chamber 1 with a fuel injection device 3, controlled to inject a combustible mixture periodically into the chamber 1, at a predetermined injection frequency a laser ignition device 2, comprising a ruby crystal 13, a flash-lamp 14, capacitor and ignition coil 15, capacitor battery and power supply 16 and lens 17 is controlled by a control unit 4 to operate periodically at the injection rate so that constant volume combustions of the injected mixture are produced periodically in the chamber at the injection frequency. Applications of the burner include aircraft driven on the reaction principle and MHD generators.
Patent GB-972443-A (GB)
Title: Purification of cyclohexane oxidation products
IPC: C07C45/80
Filed: 1960-12-14
Abstract: Cyclohexanone and cyclohexanol are recovered from an impure mixture derived from a cyclohexane oxidation product. The impure mixture is washed with an aqueous alkaline solution to form an oil phase comprising cyclohexanone and cyclohexanol, and an aqueous phase comprising the alkaline solution containing impurities originally present in the mixture and dissolved cyclohexanone and cyclohexanol, and the two phases are separated. The process is characterized in that a soluble neutral inorganic salt is added to the alkaline solution, whereby the amount of cyclohexanol and cyclohexanone dissolved in the alkaline solution is decreased. The inorganic salt which is used is one which is soluble in the alkaline solution and which does not appreciably react with the alkali and which on admixture therewith does not cause the formation of any substance which precipitates or comes out of solution. Sodium sulphate is preferred, but other salts such as sodium and ammonium chloride, and potassium chloride, fluoride, nitrite, and orthophosphate may be used. The alkali may be caustic soda or potash. The inorganic salt may be added to the alkaline solution prior to the washing step, or at any stage of the washing. or after a first separation of the oil phase. The oil phase may be removed by decantation. Specification 966,546 is referred to.
Patent GB-1130250-A (GB)
Title: Clearing tool for the emptying carriage of a slotted bunker
IPC: B65G65/48
Filed: 1967-09-21
Abstract: 1,130,250. Feeding material. MASCHINENFABRIK BUCKAU R. WOLF A.G. 21 Sept., 1967 [22 Oct., 1966], No. 43112/67. Heading B8S. Material from two bunkers (1) falls on to bladed disc 17 and is: discharged therefrom by endless belt 11' down slot 5 on to discharge conveyer 21. The disc comprises curved peripheral teeth 19 and circular bevelled edge 18.
Patent GB-1272986-A (GB)
Title: Organotin compounds
Inventor: MARKOVITZ MARK
IPC: H01B3/40
Filed: 1969-08-29
Abstract: 1,272,986. Organotin compounds. GENERAL ELECTRIC CO. 29 Aug., 1969 [3 Sept., 1968], No. 43198/69. Heading C2J. [Also in division C3] The invention comprises the reaction product of 5-70 parts by weight of an organostannonic acid and 95-30 parts by weight of a carboxylic acid anhydride. Exemplified are various reaction products of butylstannonic acid (BSA), and the Diels-Alder adduct of methylcyclopentadiene and maleic anhydride (known as "Nadic" (Registered Trade Mark) Methyl Anhydride) also BSA with a polyazelaic polyanhydride, although many useful anhydrides are specified. These reaction products are used as hardening agents for epoxy resins having ] ,2-epoxy groups (see Division C3).
Patent GB-1253507-A (GB)
Title: Brake force regulator
Inventor: OBERTHUR H
IPC: B60T11/34
Filed: 1970-09-10
Abstract: 1,253,507. Load responsive braking systems. ALFRED TEVES G.m.b.H. 10 Sept., 1970 [16 Sept., 1969], No. 43285/70. Heading F2F. A brake force control device connected in the pressure line between the master cylinder and the wheel cylinder of a vehicle fluid brake system to control the braking force in dependence on changes of axle loading has a stepped piston 3 with a longitudinal bore 7 containing a valve closure member 8 co-operating with a seat 9, the point of response of the valve being determined by prestressed springs 14 in a tube 14 closed by a member 16 held in place by punching the tube 1 on to the member 16 at several places uniformly distributed around its periphery.
Patent GB-1120201-A (GB)
Title: Improvements in axminster carpet looms
IPC: D03D39/02
Filed: 1963-11-02
Abstract: 1,120,201. Gripper Axminster looms. E. W. POTTER. 29 Jan., 1965 [2 Nov., 1963], No. 43356/63. Heading D1E A gripper Axminster loom has three rows of grippers mounted on an intermittently ratchet-rotated cylinder 34, the grippers being opened at position 11 to grip Jacquard selected tufts presented to them by a pivoted tuft selector mechanism 14 and opened again at position 12 to release the tufts after they have been wiped-in by the combined rotation and downward movement of the cylinder 34. The path of the cylinder 34 is indicated by the line 62 and its downward movement is effected by cams. The grippers are opened and closed by push-rods which operate over-centre linkages. Weft is inserted in a double shed 15 by an eyed needle 63 and a forked end needle 64 and the tufts wrap around the weft loop put in by the needle 63. Before beat-up a slide 78 pushes forward the loop put in by the needle 64 so that it is under the tufts 103 (Fig. 12) and during beat-up the loop put in by the needle 63 is pushed over 'the tufts and beat-up causes the tufts and weft loops to ride over a comb on the breast plate 16 to raise the free end of the tufts. The raising of the free ends may be assisted by a supplementary comb 71. The weft is presented to the forked end of the needle 64 by a pivoted member 84 that acts with the slide 78. The weft loops at the far selvedge are held by pivoted hooks and also have selvedge threads put through them by shuttles.
Patent GB-1041080-A (GB)
Title: Improvements in or relating to weighing machines
Inventor: HALL RONALD
IPC: G01G23/375
Filed: 1963-11-04
Abstract: 1,041,080. Selective signalling. HERBERT & SONS Ltd. Nov. 3, 1964 [Nov. 4, 1963], No. 43469/63. Heading G4H. [Also in Division G1] In a weighing machine in which a pointer 2 which is mounted on a shaft 3 rotates anticlockwise to indicate on a dial the weight of a load on the weighing platform, an auxiliary pointer 4 is so arranged on the shaft 3 that the rotation of the pointer 4 actuates photoelectric circuitry and a motor 6 to drive a perforated disc clockwise in such a way that an indication of the weight is obtainable on a totalizing counter. Rotation of the pointer 4 from " zero " (as shown) to a position corresponding to the weight of the load allows light from an emitter 9 to reach a photo-electric cell 8 whereby the motor 6 which drives the disc 5 is actuated. The disc 5 is so provided with a series of apertures arranged at a constant radial distance, the number of apertures being proportional to the number of indicies on the weight dial, that when the disc 5 is rotated by an amount such that light to a photo-electric cell 11 from an emitter 10 mounted on the disc is interrupted by an extension 13 of the pointer 4, an emitter 14 is actuated and a photo-electric cell 15 receives light through different apertures as the disc continues to rotate. The pulses of light actuate a counter until the disc 5 is driven to " zero " at which time the beam from an emitter 16 to a photo-electric cell 17 is interrupted and the counter is stopped. The weighing platform may be in the form of a rotating belt arranged to be fed continuously with material and to be driven such that a portion of the material takes the same amount of time to traverse the belt as is taken by the disc to make one complete revolution. The counter is therefore actuated to register the total amount of material passed over the belt. Additional photo-electric cells may be arranged to regulate the feed of material to the weigh belt. The weighing machine may also be arranged for weighing and totalling individual loads, or for batching material fed to the weigh platform.
Patent GB-900554-A (GB)
Title: Improvements in or relating to nickel-electroplating
IPC: C25D3/14
Filed: 1959-12-23
Abstract: 900,554. Nickel plating baths. KEMISKA A.B. CANDOR. Dec. 23, 1959 [Dec. 23, 1958], No. 43649/59. Class 41. A nickel plate of high corrosion resistance is formed using as electrolyte nickel salts and coumarin together with an acetylenic compound especially alcohols, esters or ethers, e.g. propargyl alcohol, or alternatively an acetylenic derivative of coumarin. In examples, the following are added to nickel chloride or sulphate baths, coumarin and propargyl alcohol, butinediol, hexindiol; propargyl coumarin sulphonate or propargylic ester of o-oxy-phenyl acrylic acid. Small amounts of sulphonates may be added together with aldehydes to prevent polymerized deposits, e.g. formaldehyde, or sulphonated benzaldehyde.
Patent GB-1055884-A (GB)
Title: Method of and system for controlling the speed of direct-current motors
IPC: H02P7/298
Filed: 1963-11-06
Abstract: 1,055,884. Control of D.C. motors. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Nov. 6, 1963 [Nov. 7, 1962], No. 43797/63. Heading H2J. A resistor R, in series with a D.C. motor, is adapted to be periodically short-circuited by a pulsed semi-conductor switch T 1  having a quenching arrangement comprising capacitor C, semi-conductor device T 2 , diode D 1 , and choke L<SP>1</SP>. The field winding of the motor is in parallel with resistor r and a further semiconductor switching circuit S<SP>1</SP>. In another embodiment, two separate resistors in series with the armature are each shunted by a semiconductor switch, a separately-excited field winding being supplied with pulses through a semi-conductor switch and shunted by a diode which passes the discharge current. The controlled resistors may be included in the motor circuit for regenerative or non-regenerative braking operation. An inductance may be connected in series with the armature, and a diode D 2  included in the motor circuit. A capacitor is connected across the supply terminals to stabilize the input voltage. The armature resistance may operate as a voltage divider to limit the potential applied to each semi-conductor switch. In a traction system involving the use of a number of motors adapted for series parallel control, the semi-conductor switches may be arranged to prevent wheelslide at starting.
Patent GB-1529695-A (GB)
Title: Document handling apparatus
IPC: G03B27/62
Filed: 1975-10-24
Abstract: 1529695 Feeding sheets XEROX CORP 24 Oct 1975 43930/75 Heading B8R The subject-matter is the same as that of Specification 1,529,694, but the claims are directed to the conveyer 50, which comprises one or more narrow belts 52, centrally positioned over the platen 12 and narrower than the platen, and supported out of contact with the platen by a roller 55, so as to make contact with the platen only in the zones 56, 57. The conveyer can be pivoted clear of the platen.
Patent GB-1003594-A (GB)
Title: Process for consolidating aqueous sludge having a high solids content
IPC: C02F11/00
Filed: 1962-11-21
Abstract: Phenol and urea formaldehyde or acrylamide are polymerized in the presence of tannery waste waters and other sewage sludges to form transportable blocks of sludge.  The rate of polymerization may be controlled by accelerators or retarding compounds. Specified catalysts for the polymerization of acrylamide are beta-dimethylaminopropionitrile and ammonium persulphate. Potassium ferricyanide may be present as an inhibitor. Specifications 964,477 and 1,003,593 are referred to.ALSO:Monomers are polymerized in the presence of waste waters of tanneries and other sewage sludges to form a consolidated block of sludge. Exemplified polymers are phenol and urea-formaldehyde resins and acrylic polymers. Specifications 964,477 and 1,003,593 are referred to.
Patent GB-1493668-A (GB)
Title: Phosphorus-containing flame retarding agents which are reactive with isocyanates
IPC: C08G18/38
Filed: 1975-10-27
Abstract: 1493668 Flame retardant phosphorus compounds reactive with isocyanates BAYER AG 27 Oct 1975 [17 Dec 1974] 44068/75 Heading C2P [Also in Division C3] Novel phosphorus compounds have the formula where A and B independently are C 1-17  alkyl or a group -OR where R is C 1-8  alkyl; X is H, hal, C 1-8  alkyl, C 6-12  aryl or aralkyl, NH 2 , CF 3 , CN, COOR<SP>1</SP>, SO 3 R<SP>1</SP>, SO 2 R<SP>11</SP> or COR<SP>11</SP> where R<SP>1</SP> is H or C 1-10  alkyl or cycloalkyl and R<SP>11</SP> is C 1-10  alkyl or cycloalkyl. The compounds are prepared by catalytic hydrogenation of the corresponding nitro compounds. The compounds are used in the production of flame-resistant polyurethanes.
Patent GB-1435517-A (GB)
Title: Gearbox
IPC: F16H3/12
Filed: 1972-09-23
Abstract: 1435517 Change-speed control BRITISH LEYLAND TRUCK & BUS DIVISION Ltd 31 Aug 1973 [23 Sept 1972] 44126/72 Heading F2D Means for synchronizing at least one gear train 22, 21, between an engine-driven countershaft 14 and output shaft 18 of a motor-vehicle change-speed gear, comprises an electric motorgenerator 30 connected to the countershaft through a wheel pair 32, 31, so that, during a shift, with the main clutch disengaged, the motor generator 30 can be caused to accelerate or decelerate the countershaft for synchronous engagement of a dog clutch 27 between the wheel 22 and the countershaft. The motor generator 30 receives an error signal proportional to the speed difference produced by an electronic signal generator not described, which engages the dog clutch 27 on synchronism.
Patent GB-889786-A (GB)
Title: Improvements in or relating to amplifiers
IPC: H01J25/78
Filed: 1960-12-23
Abstract: 889,786. Travelling wave tubes. SIEMENS & HALSKE A.G. Dec. 23, 1960 [Dec. 23, 1959], No. 44258/60. Class 39(1) In a parametric amplifier there is an input or an output coupling member arranged to produce a circularly polarised alternating electric field in a plane perpendicular to the axis of the electron beam. An H 01  wave is conveyed to periodically loaded waveguide 1 by guides 3, 4 spaced #/2 apart to produce the circular polarisation. An axial magnetic field focuses the electron beam. The invention may be combined with that of Specification 889,787.
Patent GB-1115944-A (GB)
Title: Semiconductor devices
IPC: H01L21/316
Filed: 1965-10-19
Abstract: 1,115,944. Igfet. RADIO CORPORATION OF AMERICA. 19 Oct., 1965 [25 Nov., 1964], No. 44337/65. Heading H1K. Insulated gate field effect transistors formed on high resistivity substrates have provided between their source and drain regions a surface portion of the same conductivity type as the substrate but of lower resistivity. This portion, which does not extend the full length of the channel, is not readily inverted by accident during manufacture and thus ensures that the transistors have more certain characteristics with a definite gate threshold voltage. The portion may form a closed figure which surrounds but is spaced from one main electrode region and which contacts that part of the other main electrode region (preferably the source) lying adjacent the first main region. This arrangement reduces surface leakage. Fig. 8 shows the plan view of the arrangement of regions in an N-type silicon transistor. The transistor is made on a substrate with a resistivity of at least 1 ohm cm. The surface charge carrier concentration of the source and drain regions 17, 18 (provided by arsenic; antimony, or phosphorus) at at least 10<SP>19</SP> cm.<SP>-3</SP> and that of the P<SP>+</SP> band 27 lies in the range 1.10<SP>17</SP> to 5.10<SP>18</SP>. The concentration of impurities (boron, aluminium, gallium, or indium) diffused in to form the P<SP>+</SP> region 27 does not therefore convert that part (27<SP>1</SP>) of the edge of the source region which it overlaps to P-type conductivity. The gate insulation is silicon oxide formed by oxidizing the surface in dry air or dry oxygen (oxide masking during diffusion steps is effected by heating the body in steam). The source, drain, and gate electrodes 41, 42, 43 may consist of aluminium, chromium, rhodium, or palladium and are provided by simultaneous evaporation through a mask or by overall coating and selective etching. (Sputtering and electroless plating are also suggested.) Gold lead wires may be attached by thermocompression bonding. The transistor body is mounted on a conductive header and encapsulated. In operation the header may be earthed and connected to the source electrode. An otherwise similar P-type transistor is made of germanium-silicon alloy. Silicon oxide layers are provided on this body by jet-spraying on to its surfaces the products of thermal decomposition of an organo siloxane. Transistors may equally be made of germanium. The specification suggests that complementary transistors of P- and N-types may readily be formed in a common lightly-doped substrate.
Patent GB-1118198-A (GB)
Title: Filter
IPC: F01P11/06
Filed: 1965-10-20
Abstract: 1,118,198. Filter; magnetic plugs. C. A. BARNARD. 20 Oct.. 1965 [9 Nov., 1964, No. 44405/65. Headings BID and B2J. A filtering and magnetic separation accessary for installation between two sections of hose 16 and 18 between the radiator and water jacket of the cooling system of an automotive vehicle comprises a hollow body 10 with inlet 14 and outlet 15. a removable receptacle 25 to receive foreign material from the body 10, and a perforated disk or woven metal cloth filter member 46 which overhangs the receptacle 25 and inclines upwards from the bottom of the body 10 to catch foreign material and divert it to the receptacle 25. filter member 46 spanning the width of the body 10 and being spaced at its upper end from the top of the body 10 to divide the body into a portion confronting the filter member and a portion bypassing the filter member. The bypassing portion may in addition be defined by a baffle 44 which is at a distance equal to 15-25% of the diameter of body 10 away from the top of the body 10. Receptacle 25 may contain a U-shaped magnet having poles 40 for attracting ferromagnetic particles.
Patent GB-998242-A (GB)
Title: Improved apparatus for turning objects
IPC: B65G47/244
Filed: 1963-11-15
Abstract: 998,242. Orientating match books. SIEFVERT & FORNANDER A.B. Nov. 15, 1963 [Nov. 21, 1962], No. 45205/63. Heading B8S. Match books 31 are conveyed by endless chain 29 to the right along platform 28 and are pushed by reciprocating pusher 20 into chamber 26. In chamber 26 the match books are turned by jets of air and are then pressed downwards by pusher 25 into shoot 36 whereby alternate match books face in opposite directions. Pushers 20 and 25 are operated by cams 13 and 14 through followers 15 and 16. Orientation of match books, Fig. 2. A match book 31 proceeds along platforms 28 and actuates switch 34. Switch 34 operates solenoid 56 which actuates pawl 57 to operate ratchet wheel 60 to rotate gear 62.. The ratchet wheel 60 has twice as many notches as gear 62 so that pin 64 takes alternately a high position and a low position to make contact 65 or 66. This operates either valve 45 or valve 44 which govern respectively fluid ducts 41 and 40 to operate on the one hand air jets 53 and 51 or on the other hand air jets 50 and 52. This turns the match book 31 either clockwise or anticlockwise to form a pile in shoot 36 which has a minimum height. Ducts 41 and 40 which draw their air pressure from source 38 are also controlled by valves 43, 42, operated by cams 55 and 54. In order that the match books 31 which fall into shoot 36 should be counted a ratchet 70 is provided having abutments 72. Pawl 57 is addition to operating ratchet 60 also operates ratchet 70. Ratchet 70 therefore rotates until an abutment 72 raises pawl 57. This raising is effected three times in the revolution of the ratchet 70 which has 100 teeth so that the operator is thus given an indication of the number of match books which fall into shoot 36.