baber/WOPTO huggingface dataset:
Patent GB-1385493-A (GB)
Title: Speech communication system
IPC: H03G7/00
Filed: 1971-11-19
Abstract: 1385493 Speech compressors DEFENCE SECRETARY OF STATE FOR 21 Dec 1972 [19 Nov 1971] 53851/71 Heading H4R A speech compressor includes two channels each containing band-pass filters 2, 13 and 3, 14 and a hard limiter 6, 7, the filters in respective channels being identical and contiguous in pass-band with those in the other channel to cover at least 300-2500 Hz. As shown, filters 2, 13 cover 300 Hz-1À1 kHz and filters 3, 14 cover 1À1-3À3 kHz and a 10 kHz oscillator 8 reduces intersyllabic noise and adjusts timbre. The mixer output resembles pulse-width modulated digitized speech signals which could be fed to a loud-speaker for intelligible reproduction. A speech communication system (Figs. 2, 4, not shown) comprises a transmitter including the first b.p. filters 2, 3 and limiters 6, 7 respectively fed with signals at 1À25 kHz and 3À75 kHz from oscillators (16, 18) which synchronize with a 5 kHz clock (20) controlling sample-and-hold circuit (21) which gates the channel outputs alternately at 0À1 ms. intervals to an analyser (22) providing a p.w.m. digitized speech signal at 10 k. bit/sec. The receiver reconstitutes the distorted pulses by feeding through a threshold detector (25) supplying a sampling circuit (26) which alternately switches the pulses train to the channels containing the second b.p. filters 13,14 in response to clock pulses at nominal 5 kHz from a voltage controlled oscillator (27). The oscillator (27) is synchronized with the transmitter clock (20) by separating out (29) from one channel the 1À25 kHz signals during silent periods and comparing them (28) with the output of a divide-by-four circuit (32) connected to the 5 kHz output of the VCO (27).
Patent GB-1327437-A (GB)
Title: Continuous casting apparatus
IPC: B22D11/128
Filed: 1970-11-13
Abstract: 1327437 Continuous casting P U FISCHER and W MAURER [trading as M & F ENG] 13 Nov 1970 [17 Dec 1969] 54189/70 Heading B3F [Also in Division F2] A table 2, for supporting and lowering at least one starter plug and continuous casting from at least one mould, is guided by a guide 4 (or 13) and is sustained against transverse forces by at least one hydrostatic bearing assembly 10 (or 10a, 10b). As shown, a bearing 10, which may be segmented, surrounds a rod 4 (of a ram 5) connected to the table 2. In an alternative arrangement, bearings (10a, 10b) may be connected to the table and flank at least one stationary guide bar (13). Water supplied to a chamber formed in a bearing 10 escapes through a gap 15. At least the parts which form the gap may be coated with PTFE.
Patent GB-1207749-A (GB)
Title: Improvements in or relating to tool holder assemblies
Inventor: MIHIC WLAJKO
IPC: B23B27/16
Filed: 1968-11-15
Abstract: 1,207,749. Tool holders. W. MIHIC. 15 Nov., 1968 [21 Nov., 1967], No. 54393/68. Heading B3T. A tool holder assembly clamps an insert 3 by moving a screw 2 into a space 8 such that a pressure medium forces a piston 7 against a resilient element 6: this movement forces a lever 4 to tilt about its centre portion in a bore 17 so that the insert 3 is held by frictional engagement against the back upright wall of a recess 16. The pressure medium is preferably a plastics composition such as polyvinyl chloride. Reference has been directed by the Comptroller to Specification 1,106,374.
Patent GB-1419805-A (GB)
Title: Storage or mixing vessels
IPC: A47J31/60
Filed: 1973-11-23
Abstract: 1419805 Mixing container GKN SANKEY LTD 17 Oct 1974 [23 Nov 1973] 54425/73 Heading B1C A mixing vessel primarily for a beverage dispensing machine has an inlet 2 and an outlet 3, a channel 4 surrounding the inlet, a further inlet (as described a tangential inlet 5, Fig. 2 not shown) arranged so that liquid swirls round the channel, and means to cause the liquid to flow over one side of the channel to wash the vessel wall. As described the wall 6 is lower than the well 7 of the channel, which may be provided with a fixed or detachable lip 9. The channel wall 6 has drainage slots 11 which are inclined so that the incoming flow does not pass through them, see Fig. 2, (not shown).
Patent GB-1117827-A (GB)
Title: Improvements in or relating to vehicle wheel mountings
IPC: B60B37/00
Filed: 1966-12-07
Abstract: 1,117,827. Vehicle suspensions. REGIE NATIONALE DES USINES RENAULT. 7 Dec., 1966 [23 Dec., 1965], No. 54878/66. Heading B7D. In a wheeled vehicle a wheel mounting is in the form of a cranked stub axle 2 with a wheel carrying first shank 3 and a second shank 4 which is journalled in a support 1 of the vehicle for pivotal movement to move the first shank 3 fore and aft of the vehicle, there being abutment means 16 to limit such pivotal movement. As shown there are two resilient abutments mounted on the support 1, and an abutment pin 15 carried by the extended web 14 of the stub axle 2. The support 1 may be an axle or trailing arm and supports the shank 4 in needle. roller or other rolling contact bearings 6. Oscillations of the stub axle 2 are damped by friction discs 10 mounted between the shank 4 and a disc 7 mounted on the support 1.
Patent GB-1179258-A (GB)
Title: Method for the Production of Light-Concrete Aggregates from Hydro-Silicates.
IPC: C04B20/04
Filed: 1967-12-04
Abstract: 1,179,258. Aggregates; concretes. SKOVDE GASBETONG A.B. 4 Dec., 1967 [5 Dec., 1966], No. 54956/67. Headings ClH and C1J. Concrete aggregate is produced by heating crushed, graded light concrete to a temperature and for a time sufficient to decompose at least part of the hydrosilicates in the concrete and to cause surface sintering to take place. Massive bodies may be produced by binding the aggregate with either cement or polystyrene.
Patent GB-1235940-A (GB)
Title: Circuit arrangement for handling high-frequency electric signals
IPC: H03J3/06
Filed: 1968-11-22
Abstract: 1,235,940. R.F. couplings. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 22 Nov., 1968 [25 Nov., 1967], No. 555:51/68. Heading H4A. The substantially resistive impedance of a signal input circuit is stepped up by a transformation network which is interposed between it and the tuning element of a tunable parallel resonant circuit. As described, a receiving aerial 1, Fig. 1, is connected through a balun 2 to the terminals 3, 4 of a tuning device. The transformation network comprises a lead-through capacitor C 1 , which is effectively connected across the terminals 3, 4, an inductor L in parallel with the capacitor C 1 , and a capacitor C 2 , one side of which is connected to the terminal 3. The other side of the capacitor C 2 , and the terminal 4 are connected respectively to the terminals 9, 10 of a tunable parallel resonant circuit 6 comprising a capacitor C k  and an inductor L k . The circuit 6 is followed by a coupling network 7 and an amplifying or mixer stage 8. In an alternative arrangement, the inductor L is replaced by a capacitor, and the capacitors C 1 , C 2  are replaced by inductors but the following relationships for each arrangement (a) the reactance of the series connected component (e.g. C 2 ) is greater than that of the parallel connected component of the same sign (e.g. C 1 ) (b) the magnitude of the reactance of the other parallel connected component (e.g. L) is large compared with that of the first mentioned parallel connected component (e.g. C 1 ) at one end of the working frequency range, but is approximately equal to it at the other end of said range (c) 4R a <SP>2</SP>>L/C 1 >R a , where R a  is the resistance of the signal input circuit in ohms, and L and C 1  are expressed in henries and farads, respectively. For example, where R a  is 75 ohms and the working frequency range is from 50 to 230 MHz, C 1  may be 33 pF, C 2  may be 12 pF, and L may be 0À37 ÁH. In a modified arrangement, the delta network constituted by the series connected component (e.g. C 2 ), the parallel connected component of the same sign (e.g. C 1 ), and a reactive component forming part of the tunable resonant circuit which is also of the same sign, is replaced by an equivalent star network. Specification 1,099,890 is mentioned.
Patent GB-557804-A (GB)
Abstract: 557,804. Vitamin B6. MERCK & CO., Inc. July 1, 1940, No. 11075. Convention date, Sept. 1, 1939. Addition to 543,615. [Class 2 (iii)] The process of the parent Specification is modified by converting the 2-methyl-3-amino- 4-ethoxymethyl - 5 - aminomethylpyridine into the vitamin by heating the starting material or its dihydrohalide either (1) with hydrohalogen acid to convert it into a dihydrohalide of a 2-methyl-3-amino-4-halogenmethyl-5- aminomethylpyridine, then boiling with water to transform the halogenmethyl group into hydroxymethyl and finally diazotizing, or (2) with a dilute hydrohalogen acid under pressure to form 2-methyl-3-amino-4-hydroxymethyl-5-aminomethylpyridine dihydrohalide, followed by diazotization. Examples are given involving the use of hydrobromic and hydrochloric acid respectively. The Specification as open to inspection under Sect. 91 also describes the production of the vitamin by (1) diazotizing 2-methyl-3-amino-4- ethoxymethyl - 5 - aminomethylpyridine and treating the resulting 2-hydroxy-5-hydroxymethyl compound either with concentrated hydrochloric acid followed by hydrolysis or with aqueous hydrochloric acid under pressure ; or (2) boiling 2-methyl-3-hydroxy-4:5-di (bromomethyl)pyridine with water ; the product contains 2 - methyl - 3 - hydroxy - 4:5 - epoxydimethylpyridine, which may also be obtained by heating 2-methyl-3-hydroxy-4-ethoxymethyl-5-hydroxymethylpyridine with aqueous sulphuric acid ; the said epoxy compound is converted into the vitamin by heating with hydrobromic acid and then hydrolysing the resulting 2-methyl-3-hydroxy-4:5-di (bromomethyl)pyridine. This subject-matter does not appear in the Specification as accepted.
Patent GB-1176062-A (GB)
Title: Variable-Speed Transmission Hydraulic Control.
IPC: F16H63/34
Filed: 1967-01-03
Abstract: 1,176,062. Change-speed gearing control. CATERPILLAR TRACTOR CO. 3 Jan., 1967 [1 Feb., 1966], No. 55974/68. Divided out of 1,176,061. Heading F2D. The subject-matter in this Specification is the same as that in Specification 1,176,061, but the claims are directed to the blocker which prevents engagement of a fourth speed reverse.
Patent GB-1338764-A (GB)
Title: Optical elements
IPC: G02C7/10
Filed: 1970-11-27
Abstract: 1338764 Tetrabutyl ammonium derivatives of nickel salts of hydroxythiophenols POLAROID CORP 27 Nov 1970 [28 Nov 1969] 56437/70 Heading C2C [Also in Divisions B5 and G2] The preparation of compounds useful as IR absorbers (see Division G2) is described. In Example 1, a compound of formula is prepared by adding an aqueous nickel nitrate solution to a solution of 1-mercapto-2-naphthol and KOH in ethanol; adding to this mixture tetrabutyl ammonium bromide dissolved in ethanol; adding acetone to this; bubbling air through the resultant mixture and filtering. The resulting precipitate is then recrystallized, and has a melting point of 184-188 degrees. In Example 2, a compound of formula is prepared by adding a solution of nickel nitrate in aqueous ethanol to a solution of o-mercaptophenol and NaOH in aqueous ethanol; adding a solution of tetrabutyl ammonium bromide in ethanol, bubbling air through the resulting mixture; collecting the precipitate; and recrystallizing. The melting point is 184-188 C.
Patent GB-1221718-A (GB)
Title: Improvements relating to doors, primarily for use on caravans
Inventor: PERRY DONALD JOHN
IPC: B60J5/04
Filed: 1968-11-29
Abstract: 1,221,718. Laminated doors. PERRY BROS. (HALL GREEN) Ltd. 29 Nov., 1968, No. 56776/68. Heading B5N. [Also in Divisions B7 and E1] A door of laminar construction for e.g. caravans, aircraft, boats, portable buildings, houses, comprises a butt jointed frame 14, 14, 15, 15 having cross-members 16 and uprights 17, and panels of expanded polystyrene 18-23 and of chipboard 26, 27 inside the frame, and sheets, of plastics faced hardboard 12 and of aluminium 25, are bonded to either side of the frame and panels in a press using impact adhesive or heated dies and heat setting adhesive. A channel section inverted U-shaped frame 30 of extruded aluminium is slid over the laminate and closure strip screwed to the bottom of frame 30, and an L-section channel is fitted round a window aperture. The chipboard block 26 serves to accommodate a lock, and panel 27 above the window aperture aids the fixing of a curtain rail.
Patent GB-1378286-A (GB)
Title: Roofing materials
IPC: E04D11/02
Filed: 1971-11-25
Abstract: 1378286 Laminated roof covering EVODE Ltd 25 Nov 1971 [1 Dec 1970] 56976/70 Heading B5N [Also in Division E1] A laminate for coating roof decks comprises a perforated sheet material bonded to a layer of waterproof sheet material, the laminate being supplied as a roll, and applied over a layer of adhesive poured on to the roof deck. The lower face of the perforated sheet material may be provided with a release agent to minimize bonding between said sheet material and the roof deck. In a preferred embodiment, the perforated material is bonded only by weak adhesive in spots to the waterproof material. The perforated material may be paper, polyethylene or a non-woven fabric. The release agent may be a wax composition, a silicone or polytetrafluorethylene. The waterproof material may be roofing felt, neoprene, PVC or butyl rubber. The roofing felt may comprise glass or asbestos fibres impregnated with a low viscosity bituminous composition, and the perforated layer may be pressed into contact therewith while it is still tacky.
Patent GB-1336625-A (GB)
Title: Sealing ring for end-face slide-ring sealing
IPC: F16J15/34
Filed: 1971-12-08
Abstract: 1336625 End face seals STENBERGFLYGTAB 8 Dec 1971 [30 Dec 1970] 57081/71 Heading F2B A sealing ring for an end-face seal comprises a hard material ring 2 (e.g. of sintered carbide or ceramics) and a supporting ring 1 held together by a plastically deformed resilient collar or sleeve 3 which is pressed into position by, for example, a rolling or metal spinning process. In Fig. 1, the rings are held together by a rolled-on sleeve 3. In Fig. 2, the rings are held together by a collar 3 made integral with the supporting ring 1, a soft copper washer 5 being inserted between the rings to act as a seal and means to conduct heat away from the hard ring 2. Instead of copper, the washer 5 may be made of brass, plastics or rubber. In Fig. 7, the rings are held together by a sleeve 3 which is deformed by rolling into annular grooves 11, and O-ring 6 with or without a sealing compound being provided between the rings. Instead of annular grooves, axial grooves or bosses may be provided on the rings which receive rolled or folded portions or co-operate with slits in the sleeve to prevent relative rotation. In Fig. 6 (not shown), the exposed end faces of the rings are bevelled and the sleeve is deformed by a metal spinning process. In Fig. 5 (not shown) the mating faces of the rings are frusto-conical. A collar or sleeve may be provided on both the inner and the outer peripheries of the rings.
Patent GB-1273321-A (GB)
Title: Magnetic head
Inventor: ALSTAD JOHN KARL
IPC: G02F1/315
Filed: 1970-12-02
Abstract: 1,273,321. Magnetic heads. INTERNATIONAL BUSINESS MACHINES CORP. 2 Dec., 1970 [24 Dec., 1969], No. 57202/70. Heading G5R. [Also in Division G1] A magnetoatriotive film 17<SP>1</SP> undergoes localized elongations and contractions in response to changes in the magnetic field from a moving record medium 36 and causes corresponding localized changes in the reflectivity of a piezoreflective film 18<SP>1</SP> which is mechanically coupled to the magnetostrictive film 17<SP>1</SP>. The films 17<SP>1</SP>, 18<SP>1</SP> are deposited on a transparent substrate 24, and a beam of light from a source 30 impinges on the piezoreflective film 18<SP>1</SP> either perpendicularly through a beam-splitter 31, Fig. 2, or obliquely, Fig. 1 (not shown).
Patent GB-1411605-A (GB)
Title: Nail strips
IPC: B21G3/18
Filed: 1972-12-14
Abstract: 1411605 Nail strips SIGNODE CORP 14 Dec 1972 [14 Jan 1972] 57725/72 Heading B8C [Also in Divisions B3 and F2] The nails N of a nail strip S have at least one row of aligned transverse notches 16 in which is mechanically gripped an elongate metallic filament 22. The nails may have D-shaped or circular heads which may be aligned or overlapping, the notches 16 in the latter case being diagonal to the shank axis. The filament 22 has a multiplicity of serrations (24), Fig. 2 (not shown), opening at its top and bottom to facilitate severance of the filament in a nailing machine, Fig. 9 (not shown). The nail strip is made by forming notches 16 in the shanks of an aligned row of nails so displacing shank portions 20, inserting a filament 22 into the aligned notches 16, swaging the shank portions 20 to grip the filament 22, and severing the nail strip into lengths which may be coiled.
Patent GB-1294345-A (GB)
Title: Projection reader apparatus
IPC: G03B21/11
Filed: 1969-11-26
Abstract: 1294345 Microfilm projectors EASTMAN KODAK CO 26 Nov 1969 [26 Nov 1968] 57738/69 Heading G2A A projection reader for use with microfiche transparencies mounted in cards 2 has two displaceable optical projection systems movable relative to the microfiche so that each optical system can project any one of the micro-images on a transparency. In the double optical system shown, a projector is mounted on each arm 14 and 15 and is movable orthogonally to cover any of the micro-images I-VIII. Arm 15 is carried on shoe 18 slidable on rods 19, 20 extending from a further shoe 21 slidable on rods 22. Arm 15, is similarly mounted, and both are manually shifted by shafts 16, 17 and levers 28, 29. The images are simultaneously thrown on to a pair of screens, the two projector stations being indicated by the positions of two manual control studs on a marking plate.
Patent GB-1148027-A (GB)
Title: Congealer tray and bin combination
IPC: F25C5/18
Filed: 1967-12-21
Abstract: 1,148,027. Ice-making. GENERAL MOTORS CORP. 21 Dec., 1967 [16 Jan., 1967], No. 58086/67. Heading F4H. Ice blocks are removed from a tray 20 having movable transverse walls 32 by pivotally mounting the inverted tray on a receiver bin 60 and moving the tray downwardly so that the ends 78 of walls 32 successively engage surfaces 76 of notches formed in the side walls of the bin to move the walls and eject the blocks into the bin. Walls 32 are mounted on a longitudinal wall 30 which has portions 42, 46 which extend through the end walls of the tray and a portion 50 which has a groove 52 for receiving a pivot pin 54 mounted on the tray.
Patent GB-1205930-A (GB)
Title: Margarine fat
Inventor: MIJNDERS AART
IPC: C11C3/12
Filed: 1966-12-30
Abstract: 1,205,930. Margarine fat. UNILEVER Ltd. 28 Dec., 1967 [30 Dec., 1966], No. 58378/66. Heading C5C. A margarine fat blend having the following dilatations: D 37  not more than 40; D 30  not more than 150; D 20  not less than 350; D 15  at least 300 more than at 25‹ C., comprises by wt. an olein fraction of m.p. 30-36‹ C. of a partially hydrogenated rapidly crystallizing vegetable or animal fat in amount 35-80% for a vegetable fat and from 50-80% for an animal fat; 10- 30% of a liquid vegetable fat and 10-40% of a natural and/or artificial fat of the coconuttype. The olein fraction may be derived from cottonseed, sunflower, safflower or soybean oils, or from tallow or lard. The liquid vegetable fat may be sunflower, safflower, soya, corn, rapeseed, groundnut or cottonseed oils or mildly hydrogenated derivatives thereof. Coconuttype fats include natural fats, such as coconut, palm kernel, babassu oils and other oils containing substantial amounts of C 12  and C 14  fatty acids, and artificial fats obtained by the hydrogenation of vegetable fats containing not more than 20% saturated fatty acids under isopromoting conditions to raise the trans-acid content to 60-80%. Preferably, the ratio of liquid vegetable fat to the coconut oil-type fat is at most 1À5. The animal fat may be hydrogenated, before fractionation, to give a drop in IV of 1-6 using a catalyst containing 0À01- 0.5% copper metal at 150-250‹ C.
Patent GB-1177240-A (GB)
Title: Formamidine Derivatives
IPC: C07D213/74
Filed: 1967-12-27
Abstract: 1,177,240. Substituted formamidines. EGYESULT GYOGYSZER ES TAPSZERGYAR. 27 Dec., 1967 [30 Dec., 1966], No. 58589/67. Heading C2C. Compounds of Formula I A-N = CH-NH 2  where A is a group of Formula II wherein R 1  and R 2  are the same or different and represent hydrogen, halogen, straight or branched chain alkyl groups having 1 to 6 carbon atoms, aralkyl, trihalomethyl or nitro, n is zero or an integer from 1 to 3, or A represents an unsubstituted naphthyl or tetrahydronaphthyl group, or a pyridyl or pyridylalkyl group of the general Formula III wherein R 3  and R 4  are the same or different and represent hydrogen, straight or branched chain alkyl or alkoxy groups of 1 to 6 carbon atoms, halogen or nitro, and n is zero or an integer from 1 to 3, which comprises reacting an ether of the general Formula IV wherein A is as defined above and R 5  represents a straight or branched chain lower alkyl group, with ammonia. The compounds of Formula I are novel with exception of those compounds where A = II and n = 0 and R 1  and R 2  = H or one of R 1  or R 2  = NO 2 , and where A = III and n = 0 and R 1  and R 2  = H. Pharmaceutical compositions having anthelmintic, antifungal and antibacterial activity comprise a compound of Formula I above or a salt thereof and a carrier therefor.
Patent GB-1196218-A (GB)
Title: Automatic Position Seeking Device
IPC: F16P3/00
Filed: 1968-12-10
Abstract: 1,196,218. Variable pitch propellers. UNITED AIRCRAFT CORP. 10 Dec., 1968 [9 Feb., 1968], No. 58603/68. Heading B7V. [Also in Division F2] A safety device in a propeller pitch change mechanisms moves automatically to a predetermined position on failure of an input linkage. A cylinder 2 rotatably mounted in a housing 15 carries a pulley 8 engaged by a cable from a control lever, and a gear sector 24 meshing an input gear 25 of a pitch change motor (not shown). A piston 6, urged axially in the cylinder 2 by a spring 14, is normally held against movement by a detent 12 while the cable linkage is intact, pressure of the cable in the groove of pulley 8 holding the detent 12 in its locking position. A cam follower 18, 20 on the piston-rod 13 engages axial slots 19 in the cylinder 2 to connect the piston and cylinder for rotation together. Following failure of the cable linkage, axial movement of the piston 6 due to the spring 14 causes the follower 18, 20 to engage a cam surface 16 in the housing 15, to rotate the cylinder to said predetermined position.
Patent GB-1370675-A (GB)
Title: Hinge
IPC: E05D11/10
Filed: 1971-12-17
Abstract: 1370675 Hinges JULIUS BLUM GmbH 17 Dec 1971 [18 Dec 1970] 58768/71 Heading E2F In a hinge arrangement having two hinge parts 1, 2 and 3, 4 connected by two links 9, 10, two link pivots 5, 6 and 7, 8 are arranged on each hinge part and the four link pivots form with the links a quadrilateral linkage which is urged by a spring-loaded member 17 towards a closed position (Fig. 1), the rotary moments exerted directly by the spring loaded member on the two links 9, 10 being in the same direction. Each of the links 9, 10 has an extension arm 11, 12 provided with a nose 13, 14 respectively and adjoining less curved end edge zones 15, 16 respectively are adapted to be engaged by the spring-loaded member 17. A rotary moment acting in the closing direction of the hinge is exerted on each of the links, while in the open position of the hinge (Fig. 2) the spring-loaded member 17 bears against the end edge zones 15, 16 of the extension arms 11, 12 of both links to exert a small rotary moment on the links 9, 10.