baber/WOPTO huggingface dataset:
Patent GB-1156557-A (GB)
Title: Improvements in or relating to methods of manufacturing parquet boards or panels
IPC: E04F15/04
Filed: 1966-10-12
Abstract: 1,156,557. Laminated parquet boards. EKPARKETT A.B. 12 Oct., 1966 [19 Oct., 1965], No. 45667/66. Heading B5N. In a method of manufacturing parquet boards or panels comprising as a backing layer a wax impregnated wood waste panel 10 and a wearing layer 11 of wood on one side of the backing layer, the different layers, after being coated with glue and superposed are introduced into a press in which they are subjected to a pressure of about 4 kg/sq. cm. and traversed by high frequency current so as to be heated to a temperature of about 80‹C. As described the panel 10 comprises an upper layer of fine chips of wood waste and a lower layer of coarse chips of wood waste and is impregnated with a wax emulsion in such a manner that there is a greaterconcentration of wax near the major surfaces of the panel than at its centre. The wearing layer 11 may be of oak staves extending longitudinally of the panel 10 and the parquet board may include a base layer 12 of synthetic plastics or, as shown, of fir staves running transversely of the panel. The press used in forming the parquet board has high frequency pole plates of opposite polarity on the same or opposite sides of the superposed layers, and may apply a pressure of 2 to 4 kg/sq. cm. for 1 to 1À5 minutes.
Patent GB-1021023-A (GB)
Title: Printing telegraph keyboard
IPC: H04L13/16
Filed: 1962-12-04
Abstract: 1,021,023. Telegraphy. TELETYPE CORPORATION. Dec. 4, 1962 [Dec. 14, 1961], No. 45727/62. Heading H4P. A keyboard transmitter comprises a plurality of pairs of T-levers, each pair supporting a pair of code bars and being connected by a tie-bar which maintains the code bars of a pair parallel to each other when a character key is depressed, and is characterized in that the T-levers themselves operate associated transmission contacts and are locked in position whilst the character is transmitted. The keyboard, code bars, and contact selecting means are so formed that they can be assembled in a pressed metal framework without the use of tools. The code-bar and contact assembly is mounted in a channel-shaped pressed metal framework placed beneath the keyboard. The framework supports two rods 42 which carry the pairs of T-levers 70. The Figure shows one pair of T-levers and the associated pair of pressed metal code bars 80, 81. Tie-bar 82 join levers 70. When a character key mounted on shaft 18 is depressed code bars 80, 81 move in opposite directions-in the Figure, bar 81 will move down and bar 80 up, thereby moving lever 70 anticlockwise. The lever carries an arm which bears against the upper end of spring 101 which is thus moved out of contact with terminal 135. Further details of the contact assembly, which is connected to the distributer, are given in Specification 1,021,024. Upon depression of any character key the several code bars are moved and locked in position, and the code combination set up at springs 101 is transmitted by way of the distributer. The parts 102 of the code bars bear against springs mounted on the framework so that they are returned to the rest position when no key is depressed.
Patent GB-1018423-A (GB)
Title: Combustion chamber and combustion process
IPC: F23R3/30
Filed: 1962-12-04
Abstract: 1,018,423. Gas turbine combustion chambers. BENDIX CORPORATION. Dec. 4, 1962 [Jan. 15, 1962], No. 45827/62. Heading F1L. To improve fuel vaporization in a gas turbine engine combustion chamber 12 comprising an air casing 10 containing a cylindrical flame tube 22 a vaporizing dome 34 is mounted within the flame tube by bolts 36 and a lip 38 at the inlet end of the flame tube. Primary, secondary and tertiary air enters the flame tube through holes 50, 52 and 54 respectively. Air flowing inwards through holes 50, 52 causes a high pressure region A which deflects primary air towards the fuel nozzle 30 and secondary air downstream. Fuel from nozzle 30 impinges on dome 34 is vaporized, and then entrained and burnt with the circulating primary air. A portion of the burning mixture is recirculated to maintain dome 34 at a temperature above the boiling point of the fuel. Grooves 35 and air chamber 42 reduce heat losses from the dome. A small quantity of air is directed towards nozzle 30 through passages 48 to prevent carbon formation on the nozzle. In a modification, Fig. 7 (not shown), a primary air guide ring 110 mounted over holes 50 directs air inwards at an angle inclined towards nozzle 30.
Patent GB-1021019-A (GB)
Title: Preparation of colourless 1,4-cis-polybutadiene
Inventor: PAMPUS GOTTFRIED
IPC: C08C2/06
Filed: 1963-11-20
Abstract: Colourless 1,4-cis-polybutadiene is prepared by polymerizing 1,3-butadiene by contact with a catalyst containing titanium in the presence of an aromatic hydrocarbon to give a solution of 1,4-cis-polybutadiene which is steam-distilled in the presence of a compound with at least 10 carbon atoms that contains one or more carboxyl groups, a complexing agent, a sterically-hindered phenol, and a non-ionic or weakly anionic wetting agent to give colourless 1,4-cis-polybutadiene free from the aromatic hydrocarbon. A specified catalyst mixture is titanium tetrachloride/iodine/lithium aluminium butyl triisobutyl, while compounds of at least 10 carbon atoms are stearic acid, palmitic acid, coconut fatty acid, and copolymers of styrene/2-ethylhexyl hydrogen maleate or dodecyl hydrogen maleate or of butadiene and butyl or 2-ethyl-hexyl hydrogen maleate used in quantities of 0.3 to 5%.  Specified complexing agents are borax, orthophosphates, pyrophosphates, metaphosphates and difficultly volatile aliphatic amines, e.g. polyglycol ether amines while specified sterically-hindered phenols are 2,6 - di - t - butyl - 4 - methyl phenol, 2,6-di-t-butyl - 4 - methoxy - phenol, 2,21 - methylene - bis - 4,41 - 6,61 - t - butylphenol, tri - (2,6 - di - t - butyl - hydroquinone) phosphite and 2,21 - dihydroxy-3, 31 - di - t - butyl - 5,51 - dimethyldiphenylmethane Specified non-ionic and weakly anionic wetting agents are polyglycol ethers of ethylene oxide and oleyl alcohol, a copolymer of isobutylene and methacrylic acid or of styrene and maleic acid.
Patent GB-998403-A (GB)
Title: Improvements relating to core borehole drilling
IPC: E21B25/00
Filed: 1962-12-06
Abstract: 998,403. Boring earth &c. H. R. HILL. Dec. 5, 1963 [Dec. 6, 1962], No. 46034/62. Heading E1F. In borehole drilling a core 38 is formed by a drill bit 14, debris being removed with liquid from the bore through the annulus between the bit and the core, a passage or passages 34, and the interior of the drill rods 11, 22. The passage is formed in a chamber 27 adapted to rest on the top of the core and having a stem 28 slidable within the lower rod 22. The hole is charged with water which may be or include water from the matter 10 being drilled, and steel shot 46 are dropped into the hole falling on a platform 21 within the bit and passing through apertures 24 to gaps 19 in the bottom of the bit to assist the cutting action. If the material is hard the shot are dropped down an air tube 43 and passes through the passage 34 to the bottom of the hole. An upward flow of water and debris is maintained by air from holes 45 in the tube 43 rising in the drill pipe. The core is gripped prior to removal of the bit by spherical gravel, supplied through the drill rods, wedging between the core and the bit. Water from the material may be tested by stopping drilling but still removing water. Instead of using shot the drill may be fitted with rollers. Debris settling onto the platform 21 may be examined through aperture 25 when the bit is removed from the borehole.
Patent GB-1323507-A (GB)
Title: Phenolic reaction products as stabilizers for polymers
IPC: C08G75/00
Filed: 1971-10-05
Abstract: 1323507 Substituted phenolic sulphides GOODYEAR TIRE & RUBBER CO 5 Oct 1971 [20 Nov 1970] 46332/71 Heading C2C [Also in Division C3] In a two stage process for the preparation of a reaction product (1) the first stage comprises reacting a mixture comprising a phenolic reactant of the formula where R is selected from hydrogen straight- or branched-chain C 1-8  alkyl radicals, C 4-12  cycloalkyl radicals, C 7-12  aralkyl radicals and C 6-12  aryl radicals and sulphur mono- or dichloride or a mixture of both and (2) the second stage comprises reacting a mixture comprising the reaction product of the first stage and a tertiary olefine having 4 to 20 carbon atoms in the presence of a Friedel-Crafts catalyst. The products are antioxidants for polymers (see Division C3). Examples are furnished.
Patent GB-952044-A (GB)
Title: Tufted products
IPC: D06N7/00
Filed: 1962-12-10
Abstract: 952,044. Laminates. D. C. COCHRAN. Dec. 10, 1962, No. 46545/62. Heading B5N. [Also in Division D1] A tufted fabric suitable for carpets is made by covering a base fabric 1 with at least one layer 2 of wet strength paper, polyethylene or polypropylene, applying a tufting yarn 3 in a conventional manner and impregnating the backing layer 1 with a binder 4. Suitable backing materials are woven or non-woven jute or cotton and suitable tufting yarns are cotton, rayon, wool, nylon or mixtures thereof and the tufts 3 may be cut or uncut. Suitable binders are latex, polyvinyl acetate, butadiene-styrene copolymers or butadiene-acrylonitrile copolymers. The wet strength paper may be reinforced with rayon or fibreglass filaments. The layer 2 may or may not be bonded to the base fabric 1 before tufting, e.g. by an adhesive such as polyvinyl acetate or by heat sealing in the case of polyethylene or polypropylene.
Patent GB-1070703-A (GB)
Title: Improvements in push-pull amplifiers
Inventor: RODWELL FRANCIS ASCOUGH
IPC: H03F3/30
Filed: 1965-11-03
Abstract: 1,070,703. Transistor amplifying circuits. FERGUSON RADIO CORPORATION. Nov. 3, 1965, No. 46622/65. Heading H3T. The invention relates to an amplifier of the type comprising a pair of transistors VT3, VT4 with their emitter-collector paths connected in series and the common output load 15 connected between their common point and the junction of two capacitors 17, 18 which are connected in series across the power supply. According to the invention, the base of an input stage transistor VT1 is connected to the junction of two resistors 12, 13 connected across the power supply: these resistors form with capacitors 17, 18 a balanced bridge network having the power supply across one diagonal and the amplifier across the other, so that fluctuations in power supply are not communicated to the amplifier. Overall D.C. negative feedback is obtained by means of lead 19 interconnecting the load 15, which must conduct D.C., and the emitter of transistor VT1. The signal is fed in from source 20 via capacitor 21; in a modification (Fig. 2, not shown) the base of the input transistor (VT1) is earthed via a capacitor and the signal source is conductive to D.C. and is connected in the emitter lead. In this embodiment, a resistor (21) is connected between the emitters of the output transistors (VT3, VT4) and the emitter of the input transistor (VT1) to provide A.C. negative feedback; a resistance-capacitance network (22-26) is also provided to convert the configuration of the output transistors (VT3, VT4) to common emitter.
Patent GB-924989-A (GB)
Title: Thermoelectric ceramic
IPC: H01L35/22
Filed: 1961-12-29
Abstract: 924,989. Thermo electric elements. ERIC RESISTER Ltd. (Eric Resister Corporation). Dec. 29, 1961, No. 46770/61. Class 37. A thermo - electric ceramic comprises a mixture of titanium dioxide together with 0.25 to 5 molecular per cent of a pentoxide of vanadium, niobium, tantalum, arsenic, antimony, or bismuth, which is fired in a reducing atmosphere. The body may be produced in two stages, i.e. by forming the substitution type ceramic normally and then firing in a reducing atmosphere, e.g. for 30 minutes at 2100 F., or the two stages may be combined. The process is said to produce an element of high thermo-electric efficiency and low resistivity. Fig. 1 shows an element 1 provided with hot and cold junctions 2 and 3, respectively, at which electrodes 4 of nickel or palladium are applied by chemical deposition or gas plating. Specifications 737,827 and 870,290 are referred to.
Patent GB-1245615-A (GB)
Title: Improvements in or relating to synchronization in colour television receivers
IPC: H04N9/70
Filed: 1968-10-04
Abstract: 1,245,615. Colour television. BLAUPUNKTWERKE G.m.b.H. 4 Oct., 1968 [5 Oct., 1967], No. 47171/68. Heading H4F. In a P.A.L colour television receiver, Fig. 1, the output of the local colour subcarrier oscillator 20 is fed to the colour synchronous demodulator 17 and has its phase for the demodulation of the (R-Y) signal changed over by 180 degrees on alternate lines by the output of a bi-stable oscillator 21 normally switched by the line fly pulses 57, Fig. 2. The swinging burst 30, Fig. 4a, separated out and amplified at 26, is fed to phase discriminator 25 for comparison with the output of oscillator 20 such that the discriminator produces a synchronous sawtooth 44, Fig. 4b, at half-line frequency. As usual the average value of this sawtooth controls the phase of the oscillator output. The sawtooth is also fed to a gate switch 22, via a control signal amplifiers in an inverted amplifier from 49, Fig. 4c. The output 52, Fig. 4d of the bistable oscillator 21 is also fed to the gate switch where it is added to the sawtooth at the base of transistor 50. If the phase of the change-over square wave from bi-stable oscillator 21 is correct, the highly positive half of the square wave is coincident with and overcomes the negative going trailing edge of the sawtooth 49, so that transistor 50 is not enabled. If, however, the phase is incorrect, the sawtooth trailing edge is coincident with the only slightly positive square wave half so that the trailing edge predominates and the transistor is enabled to give a pulse 64, Fig. 4e, which, applied to input 66 of the bi-stable oscillator 21, switches it to the correct phasing. Such switching is shown at 67, Fig. 4d. In the case of black and white transmission the input to the phase discriminator 25 is due to noise 87 which produces a sawtooth output 88 at the line frequency. The output of the bistable oscillator is then continually out of phase such that the trailing edges of the sawtooths 91 continually predominate to produce a continuous train of pulses 93 from transistor and the continuous switching of the bi-stable oscillator such that its output is substantially maintained at the highly positive level. The train of pulses 93 operate the colour killer circuit 23.
Patent GB-1322583-A (GB)
Title: Box furniture
IPC: A47B47/04
Filed: 1970-10-05
Abstract: 1322583 Furniture frames & joints; cabinets; drawers; desks. H HEFENDEHL 5 Oct 1970 [6 Nov 1969] 47208/70 Headings A4B, A4H Box furniture comprises at least one rectangular box member having one or a pair of opposed open sides, the box member comprising panels 10-14 inter-connected at adjoining edges, and a frame 15 defining the periphery of the or each open side, the panel edges adjacent the open side being secured within the frame. Each panel such as 131 is formed from two walls 13a, 13b, glued together at their edges, the hollow interior of the panel including ribs 13c, and further ribs perpendicular to and intersecting ribs 13c. The edges of the panels adjacent frame 15 have ribs 13d glued into the frame 15. Panel 13 has a rib 13e, 13f received in a groove in panel 14, and panel 14 has a rib 14a glued in a groove 13g in panel 13. The edges of panels 10-13 are also inter-connected by ribs in grooves Fig. 2 (not shown). A plurality of boxes may be stacked one on to the other, a shoulder 14e on the rear panel 14 being received within a step provided between frame 15 and panels 10-13. The panels may include openings 8 at the intersections of the perpendicular ribs 13c for the reception of plastics or metal bolts and nuts to inter-connect box members. The panel edges may be connected to the frame and the rear panel by inter-locking saw-tooth sections Fig. 4 (not shown). The rear panel may comprise a single wall with a peripheral groove Fig.4a (not shown). The box member may comprise a drawer support Fig. 5 (not shown), opposed inner walls (30a, 31a) comprising alternating grooves and lands, the former receiving drawer guide bars. The openings in the panels may be formed by concentric telescopic tubular members (30c, 30f), Fig. 5 (not shown) integral with the walls (30b, 30e) of the panels (30), the openings including interior counter bores (30d). The panels comprise plastics, and the hollow interior may be filled with foam. The frame 15 may be of metal and it may have a unitary or multi-part construction. Box members may be inter-connected to provide pedestal desks Fig. 6 (not shown) a room divider comprised of cabinets with a walk-through passage Fig. 7 (not shown), or a wardrobe.
Patent GB-987838-A (GB)
Title: Arrangement for use in conveyors
IPC: B65G17/16
Filed: 1963-12-03
Abstract: 987,838. Endless conveyers. BRODRENE HARTMANN A.S. Dec. 3, 1963 [Dec. 10, 1962]. No 47711/63. Heading B8A. Moulded pulp articles 26 are fed from a moulding machine (not shown) of the type described in Specification 870,933 [Division B5] on to an endless conveyer 12 running through a drying oven (not shown). The articles 26 are arranged on plane swingable shelves 22 which independently of the direction of conveyance constantly assume the same inclined position in space under the influence of gravity. Each shelf 22 has a stop 28 against which the object 26 abuts when it slides along the shelf and is maintained in an inclined position by a counterweight 24. The articles 26 are removed from the conveyer 12 as described in Specification 816,166.
Patent GB-481497-A (GB)
Abstract: 481,497. Photographic roller blind shutters. KILBURN, B. E. D. (Leitz Ges., E.) Sept. 11, 1936, No. 31613/37. Divided out of 481,520 under which a Specification was laid open to inspection under Sect. 91 of the Acts, March 31, 1937. Drawings to Specification. [Class 98 (i)] A focal plane roller-blind shutter has two manually controlled cams which act in combination with the shutter release, one of the cams controlling the moment of release of the second blind and hence the time of shorter instantaneous exposures, whilst the other acts to bring into and out of operation an escapement mechanism or other braking device for delaying the final release of the second blind for the longer instantaneous exposures. The construction and operation are the same as those described in Specification 481,520.
Patent GB-1062107-A (GB)
Title: Improvements in frames for bicycles
Inventor: UNCLES PHILIP BASIL
IPC: B62K3/10
Filed: 1964-11-26
Abstract: 1,062,107. Bicycle frames. MOULTON CONSULTANTS Ltd. Nov. 23, 1965 [Nov. 26, 1964], No. 48159/64. Heading B7E. An F-type cycle frame provided with a rearwardly extending member 32 has an elbowed stay 5 connected at 8 and 11 to the frame as shown and passing through the member 32 and a collar 10 thereon. The member 32 may terminate at the collar and a load-carrying platform may engage with the rear end of 32. Reference has been directed by the Comptroller to Specification 1,005,843.
Patent GB-1254628-A (GB)
Title: Treatment of hides and skins
IPC: C14C1/00
Filed: 1969-10-02
Abstract: 1,254,628. Treating skins. ROHM G. m. b. H. Oct.2, 1969 [Oct.3, 1968], No. 48573/69. Heading C6C. A process of soaking, bating or post-bating skins or tanned skins comprises treating the skins with an aqueous medium of pH 3-5 and with papain and/or fungal tryptase having an optimum activity with respect to the gelatine at a pH of not more than 5.5 whereby the scud is loosened or detached, the said skins being treated under conditions such that no substantial swelling of the skins occurs. The fungal tryptase may be obtained from Aspergillus oryzae, A. niger, A. saitoi or Rhizopus. The skins may be treated with the aqueous medium containing the enzyme or with the aqueous medium followed by treatment with the enzyme in powder or paste form. The treatment may be effected in the presence of naphthalene sulphonic acid, sulphophthalic acid, hydroxy-isobutyric acid, formic acid or hydrochloric acid. The aqueous medium for treating the skins may be comprise enzyme, acid, salt, sodium bisulphite, sodium sulphate, ammonium sulphate and Glauber's salt.
Patent GB-1537056-A (GB)
Title: Constructional toy
IPC: A63H33/08
Filed: 1975-11-27
Abstract: 1537056 Constructional toys JOSEF LEISMANN OHG 27 Nov 1975 [5 Dec 1974] 48738/75 Heading A6S A constructional toy includes a number of building blocks (Fig. 1) having a square socket and a square spigot 6, a number of 'double' building blocks (Fig. 2) having two of the square sockets and spigots, the blocks being provided with bores in the side walls parallel to the spigot-bearing face, and a number of connecting bolts and wheel spindles to be received in the bores.
Patent GB-1147657-A (GB)
Title: Improvements in or relating to leather substitutes
IPC: D04H1/435
Filed: 1966-11-01
Abstract: 1,147,657. Collagen fibres; polyurethane; modified polyamide. SVIT NARODNI PODNIK. 1 Nov., 1966 [13 Nov., 1965], No. 48867/66. Headings C3H and C3R. [Also in Division D1] In Example 1 a polyurethane is made by heating polypropylene-glycol with 2À4-toluene diisocyanate, dissolving in dimethylformamide and water, heating, cooling then adding diethylamine in dimethylformamide, followed later by 2À4-toluene diisocyanate. In Example 3 a modified polyamide is made by depolymerizing a polyamide resin in alcohol with paraformaldehyde, adding H 3 PO 4 , heating then pouring into water to precipitate the polyamide. Collagen fibres are made, see Example 1, by liming cowhide, cutting, deliming in (NH 4 ) 2 SO 4 , immersing in two successive amounts of proteolytic enzyme, pickling in NaCl and H 2 SO 4  solution, tanning in alum and chromium trioxide and neutralizing in soda. The tanned material is then washed and disintegrated into an aqueous pulp of fibres. In Example 2 the fibres are made from hair side of cattle necks and limed in a bath of Ca(OH) 2  and sodium sulphide, followed by soaking in a solution of Ca(OH) 2  and Na 2 SO 4 . NaOH is then added to the hide which is then washed. Further working up into fibres is as described above.
Patent GB-1337299-A (GB)
Title: Door lock
IPC: E05B63/04
Filed: 1971-10-21
Abstract: 1337299 Locks FELIX FLAND GmbH STAHL-SCHANZ GmbH and RIEXINGER GmbH 21 Oct 1971 [22 Oct 1970] 49085/71 Heading E2A  A combined lock and latch for doors of either hand, has a latch bolt 130 operable by either follower 102 or 104 through a slider 110 or 112 respectively, each slider having a ramp surface R engaging a pin 132 or 134 to withdraw the bolt, and it also has a lockable bolt having projections 142, 144 on each side of the latch bolt and operable by either of two key-locks 103, 105 through a tiltable arm 152 which has a cam-slot 158 acting on a pin 146 of the bolt. This arm is indexed by spring 174 acting in notches 166, 168, 170. In a modification (Figs. 4-6, not shown) the lockbolt lies between a pair of latch-bolts, and is controlled by a plate (252) having a V-slot as above and sliding on pins 122 and 126, a plate tumbler (282) serving to lock the sliding plate in a position to which it has been placed by a key. In a further modification, (Figs. 7-9, not shown) the motion is transmitted from the followers to the latch bolt by levers, and the lock-bolt is slid by direct action of the key-ring which also serves to release a pair of pivoted locking tumblers (383, 391) which are linked by a pin 387 to move in opposite directions, one only having a pin (389) moving in a slot (349) in the bolt to hold or release it. Since the tumblers move in opposite directions, a key acting on either will release the bolt.