baber/WOPTO huggingface dataset:
Patent GB-992735-A (GB)
Title: Elastomeric polyurethanes
IPC: C08G69/00
Filed: 1963-07-30
Abstract: Diaminooxamides of formula: H2N-R-NH-CO-CO-NH-R-NH2 where R is a divalent aliphatic, cycloaliphatic or aromatic radical are prepared by reacting an excess of primary, aliphatic, cycloaliphatic or aromatic diamine with an aliphatic or aromatic diester of oxalic acid.  Alkylene diamines containing 2 to 6 carbon atoms or phenylene diamines are preferred.  N,N1-bis - (2 - aminoethyl) oxamide, N,N1 - bis-(2 - aminopropyl) oxamide or N,N1 - bis-(p-aminophenyl) oxamide are prepared by reacting ethylenediamine, 1 2-diaminopropane or p-phenylenediamine respectively with ethyl or phenyl oxalate.ALSO:Polyurethane elastomers consisting of units of formula -CO-NH-T-NH-COO-Z-OCO-NH -T-NH-CO-NH-R-NH-CO-CO-NH -R-NH-where T is a divalent aliphatic, cycloaliphatic or aromatic radical, R is a divalent aliphatic, cycloaliphatic or aromatic radical, and Z is a polyester or polyether residue such that the compound HO-Z-OH is a linear, hydroxy terminated polyester or polyester of M.W. 500-2500, are prepared by reacting an isocyanate terminated prepolymer with a diamino oxamide of formula H2N-R-NH-COCONH-R-NH2. The compound HO-Z-OH may be a polyester derived from an alkylene glycol of 2-4 carbon atoms and an aliphatic dicarboxylic acid of formula HOOC(CH2)nCOOH, where n is 2-8, or with terephthalic acid, or a polyether consisting of units of formula -CmH2mO-, where m is 2-4. Conventional diisocyanates are listed including p,p1-diisocyanatotolyl urea.  In a typical example (1) an ethylene glycol/ propylene glycol adipate polyester of M.W. 1500 was reacted with p,p1-diisocyanatodiphenylmethane in dichloromethane. N,N1-bis-(2-aminoethyl) oxamide was added in dimethylformamide. The polyurethane solution obtained was used for the production of filaments and films.
Patent GB-1477041-A (GB)
Title: Fluid flow system devices
IPC: F16L23/00
Filed: 1974-07-09
Abstract: 1477041 Filter WHITEY RESEARCH TOOL CO 9 July 1974 [15 Oct 1973] 30277/ 74 Heading B1D [Also in Division F2] A filter housing romprises a central section 51 clamped between end sections 14, 16 by bolts 18, only one of which extends through the central section, so that on loosening the bolts and removing a bolt adjacent that one the central section may be pivoted out from between the end sections for maintenance.
Patent GB-1157732-A (GB)
Title: Improvements in apparatus for Recognising Speech
Inventor: BEZDEL WINCENTY
IPC: G10L25/09
Filed: 1967-06-30
Abstract: 1,157,732. Speech recognition. STANDARD TELEPHONES & CABLES Ltd. 30 June, 1967, No. 30279/67. Heading G4R. Apparatus for recognizing speech using zerocrossing analysis, includes means for adding to the speech, before the analysis, an A.C. bias, the frequency of which exceeds the highest speech frequency to be analysed. The bias amplitude may be kept proportional to the amplitude of the speech envelope. The bias dominates over noise and causes it to be effectively ignored. The bias itself is ignored because of its frequency. The analyser starts with a squarer.
Patent GB-634439-A (GB)
Title: Improvements in or relating to typewriters
IPC: B41J19/18
Filed: 1946-10-10
Abstract: 634,439. Typewriters. JELINEK, K. Oct. 10, 1946, No. 30293. [Class 100 (iv)] In a typewriter wherein spacing movement of the paper-feed carriage is varied in accordance with the width of the character being typed, each key-lever 1 carries two stops 7, 8 coacting with projections 15, 16 on pivoted levers 5, 6 adapted to actuate a carriage-feeding mechanism 4. The lever 1 actuates either lever 5 or 6, according to which projection is operative, the projections being mounted on pivoted rods 9, 10 rocked by links 12, 13 from a case shiftlever 11. On depression of a key 14 to type a lower-case letter, projection 16 is engaged, transmitting a small, angular movement to the carriage-feeding mechanism 4. When a capital is to be typed, shift-key 17 is depressed, whereupon projection 15 is engaged, thus transmitting a greater movement to the carriage. Where a lower-case character takes more space than normal, or a capital takes less space than normal, the stops 7 and 8 are greater or smaller in depth respectively, thus varying the angular movement of the levers 5, 6.
Patent GB-484590-A (GB)
Title: Improvements in radio direction finders and course indicating devices
IPC: G01S3/14
Filed: 1936-11-06
Abstract: 484,590. Directive wireless signalling. STANDARD TELEPHONES & CABLES, Ltd., and EARP, C. W. Nov. 6, 1936, No. 30336. [Class 40 (v)] In a course-indicating system, currents from a directional antenna are combined by means of a switching device operating at a predetermined frequency with currents from a non- directional antenna ; the combined currents after detection are impressed together with currents of the switching frequency upon a device which gives an indication of direction dependent upon the phase of the currents in the directional antenna. In Fig. 2 the tuned loop aerial L feeds signals in push-pull to the grids 4 of the heptode valves V1, V2, whose plates are connected in parallel and coupled, together with the non-directional antenna VA, to the receiver R. Grids 1, 2 of each valve are connected by transformer T to form a push-pull oscillator operating at about 100 cycles per second. This results in the balance of V1 and V2 being upset at this frequency ; the signal from the non-directional antenna being successively augmented and diminished by the loop signal ; in effect it is modulated at the L.F. The phase of the modulation is the same as that of the voltage on grid 1 of V1 or grid 1 of V2 according to the position of the loop, left or right of its position of zero signal. The L.F. output of the receiver is supplied in parallel to grids 1 of V1 and V2 ; the balance of oscillator voltage on the valves is thus upset and the current flowing in one of the grid leaks GL is increased and in the other decreased; the resulting unbalance of oscillator anode current in grids 2 is used to operate a differential indicator M or vary the illumination of two neon lamps NL, NR to indicate deviation from course. Potentiometer Z B is used for balancing the apparatus for zero. Fig. 3 shows an improvement in the oscillator portion of Fig. 2. The oscillator is stable at two frequencies say 150 and 300 C.P.S. corresponding approximately to the resonances of C1-L1-C and C2-L2-C due to the connection of the transformers T1, T2, the output from the receiver being connected at P. According to the position of the loop aerial, V1 or V2 dominates the oscillation and the characteristic tone for '' left " or " right " is heard. Fig. 1 (not shown) is a simplified version of Fig. 2 in which only one pentode valve is used.
Patent GB-1027163-A (GB)
Title: Improvements in and relating to electrical resistance heaters
Inventor: BROWN DONALD WILLIAM
IPC: H05B3/78
Filed: 1961-08-23
Abstract: 1,027,163. Immersion heaters. MORGANITE THERMAL DESIGNS Ltd. Aug. 10, 1962 [Aug. 23, 1961], No. 30375/61. Heading H5H. An immersion heater capable of operating up to a temperature of 1200‹ C. for maintaining metals or alloys in a molten condition comprises a high temperature electrical resistance radiant heater element 8 of refractory material formed from a tube with two diametrically opposite slots extending first longitudinally from one end to give a cold portion to which terminals 10 are connected then helically nearly to the other end to give an incandescent portion supported by insulating refractory spacers 6, 7 in a metal sheath 5 to heat the sheath by radiant heating. Alternatively the element may be U-shaped. The material of the element may be silicon carbide or molybdenum disilicide, spacers 6, 7 may be of alumina or sillimanite and the sheath may be of a material based on silicon carbide such as self-bonded silicon carbide, carbon-bonded silicon carbide, nitridebonded silicon carbide, or silicon nitride, aluminium nitride, plumbago, stainless steel, titanium, zirconium, chromium, irradium, niobium, tantalum, molybdenum, tungsten or cast iron with an internal anti-oxidizing coating such as chromium and with or without an external coating of refractory ceramic or other material resistant to attack by molten metal.
Patent GB-939387-A (GB)
Title: Improvements relating to the manufacture of footwear
IPC: A43B21/51
Filed: 1960-09-05
Abstract: 939,387. Insole waist and heel stiffeners. P. A. GARCIA. Sept. 5, 1960 [Oct. 2, 1959; Dec. 10, 1959; March 3, 1960], No. 30477/60. Class 17 (2). An insole waist and heel stiffener is moulded from a synthetic plastic to yield a stiff reinforced or unreinforced arched base 2, 3 and a heel wall or counter 1 such as to form when in footwear an abnormally small top opening and an elastic grip round the back and sides of the wearer's heel. A stiffening shank, e.g. of steel, may extend along the insole waist and heel base and may have heel attachment holes. A protuberance 29 may be moulded on the insole to provide metatarsal support and the heel wall 28 may thin down at its edge (Fig. 8). Pressure pads may be provided on the insole (Figs. 4, 5 and 7, not shown).
Patent GB-1416961-A (GB)
Title: Multieffect evaporator
IPC: B01D3/06
Filed: 1973-06-27
Abstract: 1416961 Multiple effect evaporator AQUACHEM INC 27 June 1973 [3 July 1972] 30520/73 Heading BIB In each effect in a multiple effect evaporator, e.g. effect 13, Fig. 1, tube sheet 108-3, Fig. 4 (side view) and walls 72-3 and 73-3, Fig. 3 (front view) and the adjacent portion of housing 93 defines a vapour distributing space 57-3 at the back, Fig. 7, (plan view), and tube sheet 109-3, Fig. 4 (side view) and walls 72-3 and 73-3, Fig. 3 and the adjacent portion of housing 93 defines a distillate collecting space 54-3 at the front, Fig. 7, a plurality of heat exchange tubes 55 extend between tube sheets 108-3 and 109-3, Fig. 4, and connect the vapour distribution space and the distillate collecting space, the space around the tubes comprising an evaporating space, spray 56-3, Fig. 1 forms a feed liquid distributing means, lower openings 161-3, 161-4 Fig. 3 permit flow of unevaporated feed liquid between effects, and registered openings 130-3 and 131-2, Fig. 7, permit flow of vapour from one effect to another. Steam is introduced at 57-1, Fig. 1, and the last effect, 18, is connected to condensing means comprising sprays 32. In operation, with reference to effects 12, 13 and 14, incoming water from 46 enters water preheater 53-3 through pipe 141, Fig. 7, and exits through pipe 142. A portion of the exiting feed water is conducted through pipe 148, Fig. 5, to spray nozzles Fig. 1 for spraying over heat exchange tubes 55. The vapour from effect 12 enters hood 114-2, Fig. 3 and passes through openings 130-3 and 131-2 Fig. 7 into vapour distributing space 57-3. The vapour then enters first pass heat exchange tubes 55a, Fig. 7, a portion of vapour condensing and collecting in the chamber 54-3, the uncondensed vapour then passing through second pass heat exchange tubes 55b where more vapour condenses and collects in chamber 54-3', Fig. 7. The remaining uncondensed vapour is passed into the feed water preheater housing 140-3, Fig. 3, for condensation or feed water preheater tubes. The vapour of feed liquid evaporated on the outer surfaces of the heat exchange tube 55a and 55b, Fig. 7, passes downwardly around partition 110 as shown 'by arrow 67-3, Fig. 3, and upwardly into hood 114-3 and passes to the heat exchange tubes of effect 14. The unevaporated feed liquid 70-3 collects in the lower end of housing 93 and passes through openings 160-3 and 161-4 to effect 14.
Patent GB-602989-A (GB)
Title: Improvements in or relating to electrical connecting sockets
IPC: H01R11/28
Filed: 1945-11-15
Abstract: 602,989. Cable and wire terminals. BED DOW, V. J. Nov. 15, 1945, No. 30556. [Class 38 (i)] A socket, particularly for use on secondary battery terminals, comprises a conductive tube d, e.g. of brass, preferably slotted at i, and provided with a corrosion-resisting insulating sheath j which is encircled by a clip (not shown). The lead is inserted in a cavity e and the sheath which is a sliding fit on the socket has a flanged end k. An adaptor a preferably of antimonial lead is attached to the battery terminal by a bore b and to the socket by a projection c which is received in the socket cavity h, and secured therein by tightening the clip.
Patent GB-465415-A (GB)
Title: Golf clubs
IPC: A63B53/00
Filed: 1935-11-05
Abstract: 465,415. Golf-club handles. VICKERY, N. P., and AMERICAN FORK & HOE CO. Nov. 5, 1935, No. 30583. [Class 132 (ii)] Comprises a shaft provided with two short relatively spaced portions one 4a between the hand grip 2 and the middle of the shaft, and the other 5a between the middle and the club head 3, and substantially close to the latter, each of which is more readily flexible than the adjoining portion of the shaft towards the hand grip end. The shaft at the mentioned portions is restricted in diameter to give the above effect and the restrictions are tapered from their middles towards the ends as shown. The upper portion has its minimum diameter located preferably a distance from the grip end of 104 minus twice the overall length of the shaft in inches.
Patent GB-1019734-A (GB)
Title: Improvements in or relating to analogue computing circuitry
IPC: G06G7/163
Filed: 1962-08-09
Abstract: 1,019,734. Electric analogue calculating. HONEYWELL Inc. Aug. 9, 1962 [Aug. 15, 1961], No. 30590/62. Heading G4G. An analogue computing circuit for use in deriving products, quotients and square roots comprises an amplifier 1 with a gain control arrangement 2, a switching device 10 for applying input signals e 1  and e 2  alternately to the amplifier input, a signal comparator 30 for comparing a third input e 3  with the amplifier output to derive a signal representing their difference and an output switching device 21 operated synchronously with the input switching device 10 for alternately applying the amplifier output signal to the comparator 30 and to an output terminal 25. This operates so that the input signal e 2  is routed via the amplifier to the comparator and the signal e 1  to the output terminal. An arrangement which may consist of an amplifier 32 and a delay network 33 which responds to the comparator output to produce a gain control signal which acts on the gain control arrangement 2 to reduce the difference signal from the comparator 30 towards zero must also be included in the circuit. The gain control arrangement may consist of a photosensitive resistor 3 connected as a load to the amplifier and a light source 4 energized by the gain control signal, while the amplifier 1 is a direct current amplifier and the two switching devices 10, 21 are single pole double throw switches of the synchronous vibrator type. The circuit may also include a switch 35 which enables the input e 2  (the input which after amplification is applied to the comparator) to be connected to the output terminal. In operation the positions of the switches 10, 21 are such that the input e 2  after amplification is compared with the input e 3  in the comparator 30, and the difference signal produced is used to control the gain of the amplifier 1 in such a way that the amplified signal e 2  is the same as signal e 3 , i.e. e 3  = G 1 e 2 , where G 1  is the amplifier gain. The delay in unit 33 is such that the amplifier is actually adjusted to this gain when the switch contacts are in the opposite connection and the amplified input signal e 1  is being applied to the output terminal 25 as output signal e 0 , so that e 0  = G 1 e 1  = e 3 e 1 /e 2 . By setting an appropriate input signal to unity, products or quotients may be obtained. Another mode of operation is to apply the output signal e 0  as the input e 2  by closing switch 35. Then e 0 <SP>2</SP> = e 3 e 1 , and if e 3  is set to unity, e 0  = #e 1 , i.e. the circuit may be used for square root extraction.
Patent GB-1457733-A (GB)
Title: Dripless pouring spout and closure cap therefor
IPC: B65D47/12
Filed: 1975-07-23
Abstract: 1457733 Drip-preventing pouring device W E RIDDING 23 July 1975 [5 Aug 1974] 30717/75 Heading B8T A combination dripless pouring spout and closure cap therefor comprises a one-piece pouring spout member 12 of thermoplastic resinous material having, as moulded, a longitudinally extending anti-drip finger 56 (Fig. 3) having a bendable tip portion of substantially permanently deformable character arranged to be bent to its in use position, overlying the upper lip of the spout 52 and spaced therefrom, upon application of the closure cap 18 over the pouring spout member arranged in the mouth of a bottle (Fig. 2). The finger 56 is preferably moulded as a flat finger-like element and the pouring spout member is fabricated as a unitary part from a thermoplastic material such as polyethylene, polypropylene or acrylonitrilebutadiene-styrene copolymers. Reference has been directed by the Comptroller to Specification 1,341,806.
Patent GB-1066364-A (GB)
Title: Roller bearing with cylindrical rollers guided in a cage
IPC: F16C33/56
Filed: 1964-08-04
Abstract: 1,066,364. Bearings. W. SCHAEFFLER, and G. SCHAEFFLER, [trading as INDUSTRIEWERK SCHAEFFLER OHG]. Aug. 4, 1964 [July 26, 1963], No. 30728/64. Heading F2A. A roller bearing comprises an outer race (1) having flanges (2), a synthetic plastic cage having bars (4) between which cylindrical rollers (3) are positioned, each bar having one end connected to the adjacent end of one adjacent bar, and its other end connected to the adjacent end of the other adjacent bar, by are-shaped portions (5). To assemble the bearing the cage is deformed by radial forces, the spaced ends of adjacent bars coming into contact and the cage retaining its cylindrical form, the cage is then inserted and allowed to return to its initial form. The rollers are then inserted and are retained radially by projections on the bars (4).
Patent GB-1080360-A (GB)
Title: Improvements in and relating to crystallisation processes
Inventor: CLIFT ROLAND
IPC: B01D9/00
Filed: 1965-07-20
Abstract: Pure p-xylene is produced by passing impure liquid p-xylene through a non-return valve (7) and a plurality of scraped surface chillers (3), pumping a portion of the resulting slurry of large p-xylene crystals through a recycle coil (6) having a path of approximately the same length as that of the chillers, and passing the rest of the slurry downwards through a pipe (9) having a permeable filter section surrounded by metal mesh (11) for removal of mother liquor, the remaining crystals being passed downwards through a melting section comprising a jacket heater (5) and an element (12) to produce a melt, a portion of which is forced upwards in countercurrent to the crystals and the rest of which is forced through an outlet as product under the action of pulsating pressure produced by a reciprocating piston (15).ALSO:Pure p-xylene is produced by passing impure liquid p-xylene through a non-return valve (7) and a plurality of scraped surface chillers (3), pumping a portion of the resulting slurry of large p-xylene crystals through a recycle coin (6) having a path of approximately the same length as that of the chillers, and passing the rest of the slurry downwards through a pipe (9) having a permeable filter section surrounded by metal mesh (11) for removal of mother liquor, the remaining crystals being passed downwards through a melting section comprising a jacket heater (51) and an element (12) to produce a melt, a portion of which is forced upwards in counter-current to the crystals and the rest of which is forced through an outlet as product under the action of pulsating pressure produced by a reciprocating piston (15).
Patent GB-258133-A (GB)
Title: Improvements relating to brake mechanism for motor vehicles
IPC: B62D11/08
Filed: 1925-12-07
Abstract: 258,133. Crossley Motors, Ltd., and Wishart, T. D. Dec. 7, 1925. Differential braking for steering.-The brakes on either side of the vehicle may be applied separately for steering, or simultaneously for braking, by means of a hand lever a having a " gate " e therein co-operating with a fixed quadrant n. The lever can be rocked about a pin k to cause the quadrant to enter one of three grooves f, g, h in the " gate "; this moves the lower end of the lover so that a rocker l carried thereby can. engage either or both of two brake levars i, j. Movement of the hand lever a about a pin b then applies the selected brakes or brakes. When both brakes are applied the rocker acts as an equalizer. The hand-lever is normally held in the central position by springs m, and can only be rocked about the pin k when all the brakes are " off," the quadrant n having a depressed part n<1> at one end to allow this movement to take place. A sliding pawi o on the hand-lever engages with retaining teeth on the quadrant when any brake is applied, or it may be arranged to act only when both brakes are applied.
Patent GB-1408428-A (GB)
Title: Articles of decoration comprising an artificial tree
IPC: A47G33/06
Filed: 1972-10-01
Abstract: 1408428 Lamps R N CRABTREE 28 Dec 1973 [1 Oct 1972] 30906/72 Heading F4R [Also in Divisions A6 and G5] An artificial tree 2, e.g. a Christmas tree, is mounted on a shaft 6 on a turntable which is revolvable by a motor 14 and carries electric lamps 4 powered via brushes 24, 26, &c., music or other sound producing means being provided in the base 8 of the tree. In Fig. 1, the sound producing means is a gramophone 36, to which records are supplied through a slot in the base 8: in Fig. 2, the sound producing means is a cassette player 36<SP>1</SP>. The gramophone 36 and the cassette player 36<SP>1</SP> are driven by the motor 14. Power for the motor 14 and the lamps 4 is supplied through leads 20, a step-down transformer 18 and leads 32 to concentric stationary rings 28, 30 over which the brushes 24, 26 slide, to carry current through leads 22 up the shaft 6 to the lamps 4. The side of the base 8 may have an internally illuminated fabric, &c panel bearing a picture, &c.
Patent GB-651692-A (GB)
Title: Improvements in or relating to the stiffening of shoes
IPC: A43B23/16
Filed: 1948-12-02
Abstract: 651,692. Moulding aqueous-pulp compositions. BRITISH UNITED SHOE MACHINERY CO., Ltd., COOPER, B. P., CLARK, K. J. B., and BRADSHAW, A. Dec. 2, 1948, No. 31188. [Class 87 (ii)] [Also in Groups VII and VIII] Individual shank and counter stiffener blanks are prepared by treating a pat of readilyflowable aqueous pulp composition to which an appropriate outline has been given, by methods akin to board manufacture and causing or allowing water to be lost from the shaped mass until a blank of the desired outline and consistency is obtained. Waste of board material incurred in cutting the individual blanks from sheet fibre board is thus avoided. The pulp used contains about 1 per cent of fibre by weight and includes fibres of cotton, flax, hemp or jute. Leather also may be included and rubber latex may be added. A measured quantity of the pulp is poured into an outer mould 11, Figs. 4, 7, having a passage through it of a cross-section corresponding to the outline 25 of the desired blank and a water-permeable floor 33, and water is drained and sucked away at 37, 41 to leave a pat of uniform thickness, with about 7 to 8 per cent by weight of fibre. An outer annular die 49, Fig. 7, with a central passage 51, is pressed upon the pat to shape it and provide a tapering marginal thickness, some of the pat passing into the passage 51. An inner die 77, Fig. 7, having a flat horizontal lower surface 79 is then inserted in the passage 51 and pressure applied, the vacuum being increased. Heavy compacting pressure in a hydraulic press is then applied to the mass, either in the same or in a different mould, for a few seconds. The mould is then dismantled and the work-piece removed and pressed in a mould, after drying, if necessary, to provide a stiffener blank of the shape required. This may be crimped, waxed, rolled and moulded in a counter stiffener machine in the usual manner. Fig. 11 illustrates an apparatus for producing shaped blanks wherein separate moulds 109, 11<SP>1</SP> are used respectively for the production of the pad and for subsequently shaping it in thickness. Specification 268,032, [Class 17 (i)], is referred to.