baber/WOPTO huggingface dataset:
Patent GB-999823-A (GB)
Title: An improved method of and means for use in laying pipe lines
IPC: F16L1/10
Filed: 1962-05-09
Abstract: 999,823. Boring earth, &c. E. H. BERGSTROM. Aug. 8, 1963 [May 9, 1962], No. 17774/62. Addition to 999,822. Heading E1F. The invention of the parent Specification, which concerns laying a pipe line by forcing a series of pipe lengths through the ground, is modified in that a sleeve having a cutting edge is fitted on the leading end and any tendency for the cutting sleeve 11 to deviate in direction is rectified by fitting it with oppositely directed outwardly extending blades 18 which lie at an angle such that in cutting through the ground they re-align the sleeve, whereon the blades are removed. Pairs of slits 16, 17 are situated in the sleeve 11 and in a short sleeve 13 welded inside it. The slits are aligned to allow a blade to be inserted through a pair and inclined to cause the end of the pipe to change in direction after the blades have been inserted. The blades are pushed outwards, e.g. by an hydraulic jack, through those pairs of slits, either 16 or 17, that will result in the required connection. Each blade may have a stop which prevents its inner edge from being pushed through the inner sleeve. The slits may be covered by shutters when the blades are not being used.
Patent GB-366852-A (GB)
Title: Improvements in bread boards and the like cutting surfaces
IPC: A47J47/00
Filed: 1931-06-19
Abstract: 366,852. Bread boards &c. GILLOTT, J. T., Hockley Mills, Goose Gate, Notting- ham. June 19, 1931, No. 17782. [Class 28 (ii).] For accommodating a knife blade a bread or similar cutting board 1 has a groove 2 formed in and open to one side edge of the board. As shown in the Figure, the groove may extend over a part only of the side edge, the remainder 5 of the side edge being hollowed or recessed to provide a space for the knife handle. The groove may be defined on one side wholly or in part by a hinged flap 6 which may be held in the closed position by a resilient catch 7.
Patent GB-1179989-A (GB)
Title: Improved Hollow Cube Structure.
IPC: A63H33/06
Filed: 1968-04-16
Abstract: 1,179,989. Toys. PARKER BROS. Inc. 16 April, 1968 [21 April, 1967], No. 17814/68. Heading A6S. A hollow cube structure consists of six identical square panels which carry devices whereby the panels are joined together to form the cube. Each of the identical side elements (A-F) have an inner and outer surface which are preferably joined by a beveled surface 3. The inner surface may be recessed to help reduce the weight. The elements are held together by pegs (5) which are preferably cylindrical, which all have the same diameter and are spaced apart at a distance slightly less than their diameter. Spacers (6) are preferably placed between the holding pegs. Any number of holding pegs may be used depending on the strength required. The pegs are slightly offset from the centre of each side of the panel, one of the pegs in each set being situated so that it is tangential to the line through the centre of two opposite sides, and the pegs on each side of the panel are displaced in the same relative direction. The pegs are preferably made of a resilient material so that the sides are held firmly together.
Patent GB-410628-A (GB)
Title: Device employing electronic tubes
IPC: H02M1/10
Filed: 1933-06-23
Abstract: 410,628. Valve circuits for wireless reception. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and KAPTEYN, P., 52, Steinstrasse, Neu-Babelsberg, both in Berlin. June 23, 1933, Nos. 17899 and 17900. Convenvention dates, June 24, 1932 and Aug. 6, 1932. [Class 40 (v).] In a wireless receiver for operating on various supply voltages, e.g. 100 and 200 volts, the grid bias potential of sensitive valves, such as a detector used to give reaction, is such that the valve operates below the bottom bend of its characteristic and is adjusted automatically so that the anode current is maintained constant with changes in supply voltage. The Figure shows a detector 1 biassed by a resistance 27 in the anode circuit of the output valve 14. The valve 1 preferably has a high amplification factor and is used with a high anode resistance 11, and is such that small negative bias is required and grid current starts at zero voltage. The use of tungsten as the cathode core gives these latter characteristics. Specification 261,100, [Class 40 (v)], is referred to.
Patent GB-674302-A (GB)
Title: Improvements in or relating to multiple block butt contacts for electrical switchingapparatus
IPC: H01H1/10
Filed: 1950-07-18
Abstract: 674,302. Switch contacts. NAAMLOOZE VENNOOTSCHAP FABRIEK VAN ELECTRISCHE APPARATEN VOORHEEN F. HAZEMEIJER & CO. July 18, 1950. [July 18, 1949] No. 17935/50. Class 38 (v). A butt contact for a circuit-breaker comprises a number of contact-members 5 connected in parallel and movable longitudinally relatively to one another on engagement by the cooperating contact 2, the ends 1 of the members projecting into a cup-shaped housing 3 containing a medium 4 which converts upward movement of one of members 5 to downward movement of the remaining member(s) in order to increase the contact pressure. In one arrangement, Fig. 2, the members 5 are sector-shaped, are arranged to form a cylinder, are separated by insulation 15 to avoid welding and are connected to a terminal ring 8 by flexible straps 6 and contact fingers 21 which are pressed against the sectors 5 by a circular spring 20, the medium 4 comprising steel balls (as shown), rubber or other deformable material, a liquid, or a compressed gas preferably enclosed in a capsule. The spaces between the steel balls may be filled with oil or graphite. The housing 3 is biased downwards by a spring 12, downward movement of members 5 being limited by the engagement of flanges thereon with a plate 7. The bearing area on the medium 4 of the member 5 first engaged by contact 2 is increased by an insulating pin 14 in a recess formed at the upper end of the members 5. The straps 6 may bear directly against the members 5, the spring 20 being omitted, Fig. 1 (not shown). In a modification, Fig. 4, the members 5 are of rectangular section, one member 5<SP>1</SP> having a lateral portion 5<SP>11</SP> at its upper end to provide an increased bearing area on medium 4 and its lower end being slightly below the level of the other members so that it is always engaged first bv the contact 2. In a further modification, Fig. 5 (not shown), a number of individual, spaced members 5 are used.
Patent GB-458819-A (GB)
Title: Improvements in coloured paper
IPC: D21H21/28
Filed: 1935-06-21
Abstract: Coloured paper fast to water is made by applying to surface-coloured paper an aqueous solution of deacetylated chitin or deacetylated chondroitin or a salt thereof, which may be prepared as described in Specification 458,839.  The paper may be tissue, cr<\>epe, wrapping, absorbent, news-print, printing or writing paper, or cardboard or paperboard.  The dyes used may be acid, basic or direct dyes, e.g. Crocein scarlet, Brilliant crocein, Metanil yellow, Fast acid blue, Acid violet, Acid green, Pontacyl blue black SX, Orange II, Tartrazine, Pontamine, Sky blue BX, Pontamine fast scarlet 4BS and Stilbane yellow.  The dye may be applied by immersion or on a calender.  The coating is insolubilized by heating or by treatment with reactants such as formaldehyde, glyoxal, acid anhydrides, or acid chlorides.
Patent GB-684790-A (GB)
Title: Improvements in wire-bending machines
Inventor: HOLROYD ERIC
IPC: B21F45/00
Filed: 1950-07-19
Abstract: 684,790. Making wire articles. DUNLOP RUBBER CO., Ltd. July 11, 1951 [July 19, 1950], No. 18003/50. Class 83 (iv). Angular bending shearing adjuncts.-A machine for forming a loop at the ends of a wire for making cycle-saddle wires comprises means for feeding and shearing the wire and a rotatable member for bonding it about upstanding pins whilst the wire is clamped. The wire is fed from a spool and is bent to the shape shown in Fig. 5. A shaft 15 rotated by an electromotor rotates a cam 21 through gearing 35, 36 which actuates a clutch 18 and rotates a shaft 15 with continuous groove 44 for traversing a feedcarriage 16. A pivoted clamping jaw 50 on the carriage is actuated by a roller 57 which engages a catch 60. The wire is fed forwards and positioned in front of pins 110 when the roller 57 engages a catch 59 to release the jaw 50 and to disengage the clutch 18. A clutch 17 is then actuated by the cam 21 through levers 19 to rotate a cam-shaft 69 connected by a chain 116 to a shaft 113. The shaft 69 carries a cam 73 which lowers a press beam 86 attached to a head 93 with dies 100 carrying a humped portion 101 which bends the wire over a die 99. A spring pad 104 holds the wire against a platform 27 while the loops are formed by rotary tools 117, 118 as set forth in Specification 679,587. The wire is severed by a pivoted member 121 co-operating with a fixed cutter 119. During the bending operation ears 108 on the pads 104 co-operate with the pins 110 to hold the wire. The bent wire is ejected by a plunger device with spring-urged cam-controlled hooks, Figs.3, 4 (not shown).
Patent GB-647721-A (GB)
Title: Improvements in the manufacture of refractory products and abrasives
IPC: C04B35/657
Filed: 1947-07-08
Abstract: Refractory products or abrasives are manufactured by fusing raw aluminous materials, e.g. ores of the group bauxite, diaspore, laterite, and hydrargillite, particularly those containing more than 4 per cent iron oxides, while supported on a previously fused mass of the same materials which has pulverulent or granular carbon distributed over the surface.  Thus active carbon, e.g. granulated wood charcoal, in amount approximately double the theoretical quantity, is charged on to the molten material remaining in a Herault electric furnace after a tapping, bauxite is loaded on top, and the mixture fused; an alloy of iron and silicon with or without aluminium collects at the bottom, and molten alumina is tapped into moulds after 80 minutes, when a fresh charge is loaded.  The alloy is allowed to accumulate for 8 days, then at the next tapping the molten refractory is poured into an insulated ladle and the remainder of the furnace contents is poured into a second ladle; the contents of the first ladle is returned to the furnace and is sufficiently hot and conducting to restart the process.ALSO:An alloy of iron and silicon with or without aluminium is obtained in the manufacture of refractory products by fusing raw aluminous materials, e.g. ores of the group bauxite, diaspore, laterite, and hydrargillite particularly those containing more than 4 per cent iron oxides, while supported on a previously fused mass of the same materials which has pulverulent or granular carbon distributed over the surface.  Thus active carbon, e.g. granulated wood charcoal, in amount approximately double the theoretical quantity is charged on to the molten material remaining in a Heroult electric furnace after a tapping, bauxite is loaded on top, and the mixture fused; the alloy collects at the bottom, and molten alumina is tapped into moulds after 80 minutes, when a fresh charge is loaded.  The alloy is allowed to accumulate for 8 days, then at the next tapping the molten refractory is poured into an insulated ladle and the remainder of the furnace contents is poured into a second ladle, the contents of the first ladle is returned to the furnace and is sufficiently hot and conducting to restart the process.
Patent GB-1126327-A (GB)
Title: Electroless copper plating
IPC: C23C18/40
Filed: 1966-04-26
Abstract: 1,126,327. Electroless copper deposition. PHOTOCIRCUITS CORP. April 26, 1966 [April 27, 1965], No.18155/66. Heading C7F. In a process for the electroless deposition of Cu on metallic or non-metallic substrates an aqueous solution of a Cu salt contains a complexing agent, a reducing agent, a pH adjuster and at least 0À1 microgram atoms per litre of a compound containing an element selected from the group consisting of Mo, Nb, W, Re, V, As, Sb, Bi, Ac, La, the rare earths or mixtures of these. Examples of the stabilizing compounds added are MoO 3 , ammonium molybdate, oxides of W, V, Re and As, the tungstates, vanadates, arsenates and rhenates of Groups 1A and 11A and ammonium, the oxides, sulphates, nitrates, halides and acetates of Sb, Bi, La, Ac and the rare earths and the preferred concentration is 0À1-1,000 microgram atoms per litre. The pH of the solution is maintained at 10-14 by the addition of alkali metal hydroxide and the reducing agent is formaldehyde. Less than 5gms/litre of surfactants such as organic phosphate esters and oxyethylated salts may be added. Non-metallic substrates which are to be coated are first sensitized with an acid solution of SnCl 2  and PdCl 2 .
Patent GB-356810-A (GB)
Title: Improvements in or relating to cotton combing-machines
IPC: D01G19/16
Filed: 1930-06-13
Abstract: 356,810. Combing machines. WHITIN MACHINE WORKS, Whitinsville, Massachusetts, U.S.A.-(Assignees of Barker, D.; Whitinsville, Massachusetts, U.S.A.) June 13, 1930, No. 18173. Convention date, Aug. 24, 1929. [Class 120 (i).] In a Heilmann or like combing-machine a tuftdeflecting lip 16, Fig. 2, is loosely mounted on the upper nipper jaw 6 and is movable parallel thereto, stop means, such as fingers 20, Figs. 3 and 4, secured at the edges to the bottom of the lower jaw or cushion plate 4, being provided so that the lip 16 is always held in the same position relative to the lower jaw, i.e. at the closest setting desired to the path of the needles on the combing cylinder, and independently of the thickness of the lap. The lower jaw 4 is formed with a rounded bead 14 and the bottom edge of the nipper knife 6 is longitudinally grooved to correspond, the groove being formed with a front wall 15. The lip 16 is secured to the upper nipper 6 by screws 17 engaging elongated slots 18 while the stop fingers 20 are adapted to engage notches 19 in the corners of the lip 16.
Patent GB-596046-A (GB)
Title: Improvements in or relating to kites
IPC: B64C31/06
Filed: 1945-07-16
Abstract: 596,046. Kites. DICKSON, S. D. July 16,1945, No. 18179. [Class 4] A kite of the kind provided with a plurality of flying strings by which its flight may be controlled is characterised in that each flying string is attached to the same face of the kite by a crow's foot or fin so disposed that the strings are separated from one another at their points of attachment. In the case of the Malayan kite illustrated, two flying strings 18, 19 are provided, connected at 25, 26 to crow's feet 20, 21 formed from a single length of string attached to eyelets 22, 23, 24 at the ends of 'the cross-member 11 and the rear of the central member 10 respectively. To prevent the crow's feet from swinging to the wrong side of the kite they may be connected by a tie string 31. The tail of the kite is made from a strip of paper 30 folded in concertina form and threaded on a string 28. The crow's feet may be disposed parallel to one another by connecting their ends to appropriate points on the edges of the kite sail. A hexagonal kite provided with parallel fins is also described.
Patent GB-947978-A (GB)
Title: Improved method for curing polyester elastomers
IPC: C08G63/91
Filed: 1962-05-11
Abstract: Polyester elastomers are made by (1) partially curing a saturated polyester with an organic peroxide in an amount of 40-80% of the total peroxide to be used and (2) adding the remainder of the peroxide and completing the cure.  The peroxide may be benzonyl peroxide, a , a 1 - diamyl peroxide, lauroxyl peroxide, 2:5-dimethyl-2:5-di-(t-butylperoxy)- hexane, 1 - menthone peroxide or methyl ethyl ketone peroxide and is preferably used in an amount of 6 - 12 parts per 100 parts of polyester.  Preferably each curing step is effected at 200 DEG  - 450 DEG F. for 1 - 120 minutes.  The polyester may be derived by reacting (a) a glycol, e.g. ethylene - propylene-, trimethylene-, 1:3- or 1;4- butylene - neapentylene - or p-xylylene - glycol; or 1:4 - dimethylolcyclohexane or 2:2:4:4 - tetramethylcyclobutane - 1:3 - diol, with (b) a dicarboxylic acid e.g. succinic glutaric, adipic, pimelic, suberic, azelaic sebacic undecanedioic or dodecanedioic acid and possibly (c) 0.05-8 mol per cent of a polyhydroxy compound e.g. glycerine, 1:1:1-trimethyllolethane, 1:1:1 - trimethylolpropane or pentaerythritol. Fillers, pigments, reinforcing agents, tack reducing agents and plasticizers may be added at some stage in the process. Specified fillers are calcium carbonate (e.g. of particle size 0.033-0.040 microns), carbon black, iron oxide, clay, talc and silica.
Patent GB-223289-A (GB)
Title: Improvements in or relating to electromagnetic mechanisms
IPC: H01H47/00
Filed: 1923-07-14
Abstract: 223,289. Automatic Telephone Manufacturing Co., Ltd., and Hudd, A. E. July 14, 1923. Slow-acting relays. - Electromagnetic mechanism particularly functioning as a relay in railway signalling systems comprises two sluggish electromagnets energized alternately and jointly controlling a member linked with the armatures of the electromagnets. An electromagnetic vibrator 2 is connected with two sluggish electromagnets 5, 6 energized alternately by the vibrator. The armatures 8, 9 of these electromagnets are provided with brackets 10 engaging the spherical ends 11 of a link bar 13 pivoted at 14 to a bracket 15 on a plate 16 carrying contacts 18. Normally the armatures 8, 9 rest away from the magnet cheeks 7 with the lower contacts 18, 19 in connection. When the electromagnets are energized on one side only the bar 13 will turn about its pivot with no effect upon the plate 16. When however alternate energization occurs the plate will be lifted since the sluggishness of the electromagnets will prevent the bar falling back, so that a series of alternate impulses becomes. necessary to close the upper contacts 18, 19. Specification 193,671, [Class 105, Railway signals &c.], is referred to.
Patent GB-965954-A (GB)
Title: A force measuring cell
IPC: G01L1/00
Filed: 1962-05-11
Abstract: 965,954. Measuring force electrically; weighing apparatus. CARL SCHENCK MASCHINENFABRIK G.m.b.H. May 11, 1962 [May 12, 1961], No. 18260/62. Headings G1N and G1W. A transducer for measuring e.g. weight, comprises a balancing lever whose angular deflection is opposed by tensioned wires which normally transmit force through the fulcrum, but are displaced by an extension of the balancing lever to produce a balancing moment. As shown (Fig. 1), a force to be measured is applied via a yoke 6 to a lever 1, fulcrumed at 15, and having an elastic extension 8 held between two rollers 10. Steel ribbon wires 13, 14 are attached between the axle pins of rollers 10 and the fulcrum 15 on either side of a pin 7 fixed in the lever assembly 1, 8. When a force is applied to the yoke 6 to move it down, the lever 1 is deflected, producing balancing moments about the fulcrum by the wire 13 pressing against the pin 7, and by the stress in the deformed extension 8, the latter being measured by strain gauges 9 on the extension 8. The sensitivity is adjusted by a sliding weight 18 on the arm 11 carrying the rollers 10, which alters the tension in the arms 13, 14. The wires may be replaced by a single wire attached to a cup resting on a knife edge replacing the pin 7. In another embodiment (Fig. 2), a single spring-loaded wire 23 is located between adjustable stops 21, 22, whereby the initial restoring moment is that due to the counter weight 27 only, but after the wire 23 touches a stop 21 or 22 it introduces an additional restoring moment, thus giving two ranges of sensitivity. The angular displacement of the lever 20 is measured by differential capacitors 28, 30 and 29, 31 connected in a bridge circuit. In a further embodiment (Fig. 3), the central steel wire 48 is deflected from the vertical by one of the curved arms 49, 50 whereby an increasing angular deflection of the lever 40 produces an increasing restoring force acting at an increasing distance from the fulcrum 41. The deflection is here measured by fixed inductive pick-offs 44,45 co-operating with immovable cores 43.
Patent GB-220775-A (GB)
Title: An improved rotating and self-adjusting clip for holding mineral specimens, rectifying crystals for wireless reception, and the like
IPC: H01L29/00
Filed: 1923-07-16
Abstract: 220,775. Green, S. Eden-. July 16, 1923. Crystal detectors. - A clip for mounting mineral specimens for examination under a microscope, or for use in crystal detectors for wireless reception, comprises two cups 3, 4 mounted on stalks rotatable in bearings 1, 2. A spring 8 may be provided to cause the crystal &c. to be gripped between the cups. The position of one of the cups is determined by an adjustable collar 5.
Patent GB-692003-A (GB)
Title: Improvements in or relating to frequency-stabilizing circuits for frequency-modulated oscillators
IPC: H03C3/09
Filed: 1951-08-03
Abstract: 692,003. Automatic frequency control systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 3, 1951 [Aug. 8, 1950]. No. 18402/51. Class 38 (iv). [Also in Group XL (c)] Relates to circuits for frequency modulation of a carrier source, of the kind in which the source 1, Fig. 1, is synchronized with a frequency derived from a stage 3 at which a stable oscillator 4 is phase-modulated by the signal voltage 5 after integration at 6. Synchronization has been effected by applying the output from the stage 3 through a frequencymultiplier 7 to a mixer 2 where its phase is compared with that of the carrier source 1 to derive a control voltage a which is applied to a frequency-control device 8 associated with the carrier source 1. The invention consists in simultaneously applying the signal voltage 5 direct to the frequency control device 8, so that the control voltage a can be confined to D.C. and slowly-changing voltages, thus diminishing the tendency to self-oscillation due to back coupling round the loop 1, 2, 8. The frequency-control device 8 may comprise two valves 8<SP>1</SP>, 8<SP>11</SP>, Fig. 2, with their anodes connected jointly to control the frequency of the source by means of a valve reactance, a saturable-core inductance, or other device. The control grid of the valve 8<SP>1</SP> receives the D.C. and low A.C. output from the phase-comparer 2, and gives control over a wide frequency range; and the control grid of the valve 8<SP>11</SP> receives the modulating signal b and through the capacity 10 the remainder of the phasecomparer output a. If the phase-modulated output from 3 is converted into pulses of short duration, the phase-comparing stage may take the form of a gated mixing stage. A seriestuned circuit may be connected across the output of the phase-comparing stage 2.