baber/WOPTO huggingface dataset:
Patent GB-246655-A (GB)
Title: Improvements in apparatus for drying textile or fibrous material and such like
IPC: F26B15/12
Filed: 1925-01-17
Abstract: 246,655. Haas, H. Jan. 17, 1925. Wheeled trucks, moving; air, controlling circulation. of.-Hanks of textile materials &c. are suspended in trucks and conveyed through a drying tunnel a through which downward currents of air are circulated by fans c located in the bottoms of heating-compartments b adjacent to the tunnel. Additional inlets b' from the heating-compartments to the tunnel may be provided.
Patent GB-157777-A (GB)
Title: Improvements in adjustable yarn reels
IPC: B65H49/30
Filed: 1921-01-10
Abstract: 157,777. Maschinenfabrik Kuttruff. Jan. 4, 1918, [Convention date]. Swifts.-In a reel wherein links f, f<1> carrying the rails d are coupled to sliding sleeves g, g', connected by lever mechanism h for the purpose of adjusting the diameter of the reel, the lever mechanism h is carried by an adjustable collar i on the reel spindle.
Patent GB-1599492-A (GB)
Title: Sheet dispensing device for use with copying machines
IPC: B65H3/54
Filed: 1978-01-13
Abstract: The sheet dispenser suitable in particular for copying machines has two lateral guides which delimit a space for inserting a container (11) which contains a sheet stack, a conveyor (46) which is movable back and forth in the housing (21) to carry along the topmost sheet (12') out of the container (11) and a separator (61) to firmly hold the container (11) and all sheets with the exception of the topmost sheet (12'). The container (11) has two laterally projecting flange-like projections (18) which are in engagement with the lateral guides in the housing of the sheet dispenser. During insertion of the container, the conveyor and separator are brought from a lower end position into an upper end position and subsequently lowered into the working position in which the conveyor and separator are supported on the topmost sheet (12'). The container thereby only needs to be inserted in order to bring the conveyor and the separator into their working positions and to make the sheet dispenser ready for operation. <IMAGE>
Patent GB-1034211-A (GB)
Title: Phase modulation reading system
IPC: G11B20/14
Filed: 1964-01-13
Abstract: 1,034,211. Digital data storage. SPERRY RAND CORPORATION. Jan. 13, 1964 [Jan. 23, 1963], No. 1487/64. Heading G4C. In a circuit for reproducing recorded data; non-significant signals which arise during the course of the reproduction are suppressed by an inhibit signal generator the timing and duration of whose inhibit signals are controlled by a tuned circuit responsive to significant data signals. The circuit is applied to reading data recorded in phase modulation form on a magnetic tape in which the zero cross-over directions in the playback waveform represent the binary data except that between any two consecutivelike binary digits there is a non-significant cross-over not representing data. As described, playback waveform A, Figs. 1 and 2 (not shown), read from a magnetic tape 10, is differentiated at 14 and squared at 16, the squared waveform being differentiated at 18 to produce waveform D with positive spikes representing " 0 " and negative spikes representing " 1," signals 20, 22 being non-significant. Waveform D is separated at 24 into waveforms E, F representing " 1 "s and " 0 "s respectively together with non-significant signals 20, 22, waveforms E, F being applied to respective AND gates 26, 28 controlled by the output of a flip-flop 32 which is set by waveform G comprising signals corresponding to every data signal and derived from OR gate 30, the flip-flop 32 being reset by waveform J comprising signals derived from waveform G via a tuned circuit 44 which produces a sine waveform I in response to the significant data pulses, and zero cross-detector 52. The tuned circuit 44 is thus effective to vary the duration of the inhibit signals provided by the flip-flop 32 in accordance with the average rate of data signals which may fluctuate due to variations in the tape speed. The tuned circuit is of intermediate " Q " so that a single misaligned pulse affects the cycle period by only a small amount.
Patent GB-304216-A (GB)
Title: Improvement in artificial teeth
IPC: A61C13/00
Filed: 1929-01-16
Abstract: 304,216. Baker & Co., Inc., (Assignees of Maulen, F., and Allen, G. L. van), and Myerson, S. Jan. 16, 1928, [Convention date]. Teeth, artificial. - Securing pins baked into tooth facings to be used with metal backing plates are formed with a point 5, Figs. 1 and 2, and one or more sharp cutting edges 8, and with the part 4, external to the tooth, tapering towards the point. The part 7 of the pin, within the tooth, may be tapered or not, and may be formed with a head 1. Figs. 3, 5, 6, and 8 show pins of various cross-section. The pins are forced through the backing plate and fit tightly against the edges of the apertures so formed.
Patent GB-1406796-A (GB)
Title: Apparatus for dividing strip or sheet material
IPC: B23D19/08
Filed: 1974-01-14
Abstract: 1406796 Shearing; planing J FROHLING [trading as JOSEF FROHLING] 14 Jan 1974 [15 Jan 1973] 01587/74 Headings B3W and B3L [Also in Division B4] To avoid deforming, and forming burr on, cut edges when dividing sheet or strip of metal, plastics, &c. material, a groove is machined by tools 2, 2<SP>1</SP> in at least one face along the intended dividing line before the sheet &c. is sheared, preferably by disc cutters 1. The machining tools 2, 2<SP>1</SP> may have bevelled or other shaped faces to provide cut edges of particular shapes.
Patent GB-763777-A (GB)
Title: Improvements relating to vehicle body structures
IPC: B62D31/00
Filed: 1955-01-19
Abstract: 763,777. Vehicle bodies. DAIMLER-BENZ AKT.-GES. Jan. 19, 1955 [Jan. 19, 1954], No. 1644/55. Class 108(1). A vehicle body frame structure comprises two longitudinally disposed substantially U- shaped members 1 held in spaced relationship by cross members 3, 4 and two further U-shaped members 5 secured to the upwardly presented arms of the members 1. The roof members 5 may be connected by. cross member 6 or they may be bent inwardly and joined along the central longitudinal plane of the vehicle. The U-shaped roof members may be disposed transversely at the front and rear of the vehicle.
Patent GB-1493473-A (GB)
Title: Process and device for the production of aluminium
IPC: C22B21/00
Filed: 1975-01-15
Abstract: 1493473 Centrifugal refining of aluminium M WELSCH 15 Jan 1975 [15 Jan 1974] 1669/75 Heading B3F [Also in Division C7] In a method of centrifugally separating Al from hypo-eutectic Al-X alloys, the X- component having a specific weight greater than Al and forming a eutectic with Al, the Al-X alloy is powered into a centrifugal mould which is insulated on its outside and the alloy is radially cooled from the inside during centrifuging to produce a radially outer layer of Al-X eutectic and an inner layer of pure Al. The X- component may be an element or a compound which may include precipitated contaminating elements such as Fe or Si which may be removed by adding Zn and Pb respectively. The centrifugal mould may consist of a steel chamber 1 lined 1a with kaolin or kielselguhr bricks and have a plurality of cavities formed by spaced axially extending wedges 4 of kaolin insulated steel. The radial cooling is effected by an axially extending pipe 3 having radially directed outlets through which compressed air may be forced. In specific examples, Al-Cu alloys of 4À5% and 7% Cu produce a radial outer layer of Al-33% Cu eutectic and an inner layer of Al-0À02% Cu, while a 94% Al, 4% Zn, 2% Mg produces an outer radial layer of 50% Al, 33% Zn, 17% Mg with an inner layer of Al having between 0À02-0À03% each of Mg and Zn. Prior to the metal pouring the mould including the wedges 4 may be heated by electrical resistance to near the pouring temperature.
Patent GB-565493-A (GB)
Title: Improvements in or relating to parachutes
IPC: B64D17/00
Filed: 1943-02-02
Abstract: 565,493. Parachutes. FRIEDER, L. P. Feb. 2, 1943, No. 1704. Convention date, Feb. 25, 1942. [Class 4] A parachute canopy, as in Specification 562,309, which is, when inflated, of hemispherical shape, and is shown in Fig. 5, is made of fibrous materials, such as paper, and is composed of sections united by seams, none of which extend from the outer edge of the canopy to the centre of the canopy, around which is a seamless area ; Fig. 2 shows the sections assembled in position for uniting. In order to provide against tearing of the paper during opening, the sections may be cut so as to produce a fulness extending over a zone extending on each side of a line about onethird of the distance between the edge of the canopy and its centre, this zone being where the strain is at a maximum. In Fig. 14 is shown a canopy with a section 36 extending over the centre from opposite parts of the edges the other sections shown being united by seam, to adjacent sections. In Fig. 10 is shown a hem at the edge of the canopy enclosing a cord 29 to which the shroud lines 33 are attached.
Patent GB-1189322-A (GB)
Title: Contact Assembly
Inventor: MEEK NEIL
IPC: H01H19/58
Filed: 1967-01-11
Abstract: 1,189,322. Rotary distributers; switch contacts. SMITHS INDUSTRIES Ltd. 11 Jan., 1968 [11 Jan., 1967], No. 1752/68. Heading H1N. A contact assembly includes a generally L-shaped contact arm 14, (15) of resilient sheet metal, one limb 18a, 18b, (20a, 20b) being rigidly held by a mounting, and the other limb 19a, 19b, (21a, 21b) contacting a surface, the surface and the contact arm being relatively movable, the rigidly held limb being in a state of torsion such that the torsion in this limb increases the pressure between the contact arm and the surface. As shown, contact arms 14 and 15 are forked to minimize any irregularities in contact caused by surface variation and are formed from one sheet of metal fastened by flanges 16 and 17 to an insulating disc mounted on a spindle driven by the speedometer cable of a vehicle, the other end of the spindle fitting in the speedometer drive. The contact arms 14, 15 bear against a printed-circuit board, Fig. 2b (not shown), arm 14 bearing against an inner ring and arm 15 bearing against an outer annulus with conductive and non-conductive segments and the ends of arms 19a, 19b and 21a, 21b are bent or ridged to provide line contact. Parts 19a, 19b and 21a, 21b are formed at an angle to parts 18a, 18b and 20a, 20b so that when the contact arms are forced against the printed circuit board, parts 18a, 18b and 20a, 20b are twisted providing the torsion.
Patent GB-196369-A (GB)
Title: Improvements relating to potential transformers and fuses used in connection therewith
IPC: H01F27/40
Filed: 1922-01-20
Abstract: 196,369. Coates, W. A., Davies, D. R., and Metropolitan-Vickers Electrical Co., Ltd. Jan. 20, 1922. Transformers.-The fuses of a transformer are carried by one or more lids of the transformer casing and are disconnected from the supply conductors when the lid or lids is or are opened. An arrangement for a three-phase transformer, with a fuse 22 and a limiting resistance 23 in each phase, is shown in Figs. 1 and 3. The fuses and resistances are mounted in clips carried by insulators 19 secured to the lid 17 pivoted at 18, the clips at one end of the fuse and resistance for each phase being connected together by conductors 25. The clips at the other ends of the fuses and resistances carry contact-springs 24 which pass through openings 16 in insulating-partitions 15, when the lid is closed, and engage contacts 10 connected to the supply conductors 8 and contacts 14 connected to the transformer windings 3, 4, 5. Insulating-partitions may be provided between the fuses and resistances. In a modification, Fig. 4, the transformer windings and the fuses 22 are arranged vertically in order to economize space, and the lid 17 carrying the fuses is opened by raising it vertically by means of a handle 51 and links 47, 48. The fuses are mounted on an insulating partition 15a carried by the lid, the upper contacts of the fuses being secured in clips 32 connected to contact-members 33 which engage contact-springs 24 connected to the supply conductors 8 when the lid is closed. The lower fuse contacts are mounted in sockets 35 provided with spring plungers 38 which engage spring contacts 42 secured to the terminals 43 of the transformer on closing the lid. The limbs 6 of the transformer core may be supported 'by a pair of bolts 28 secured to a casting or cover 29 forming the top of the transformer tank. The invention is particularly applicable to potential transformers for use with iron-clad switch gear.
Patent GB-1027411-A (GB)
Title: Fluorin-containing copolymers and process for their preparation
IPC: C08F214/18
Filed: 1964-01-15
Abstract: Fluorine-containing thermoplastic copolymers are prepared by copolymerizing tetrafluoroethylene and 1,2,3,3,3-pentafluoropropylene in a liquid medium in the presence of a free radical polymerization initiator at -30 DEG  to 200 DEG  C. The medium may be a perhalogenated compound, e.g. perfluorocyclobutane, perfluorodimethyl cyclobutane, perfluoropyrane, tetra-fluorodichloroethane or excess pentafluoropropylene; or water which may also contain emulsifiers, e.g. alkali metal, alkaline earth metal and ammonium salts of perhalogenated or o -hydro-perhalogenated fatty acids containing 6 to 20 carbon atoms, and buffers, e.g. alkali metal phosphates and borates.  The initiators may be inorganic or organic peroxy compounds, optionally activated with sulphite or thiosulphate reducing agents or heavy metal salts; or azo compounds; and lists of suitable initiators are given. Polymerization may be effected in the presence of modifiers, e.g. mercaptans and aliphatic halocarbons. The copolymers may be formed into shaped articles by extrusion, compression or injection moulding, or may be made into fibres and threads. Examples describe the copolymerization of tetrafluoroethylene and pentafluoropropylene in the presence of (1, 4 and 5) water, sodium perfluorooctanoate, ammonium persulphate and sodium pyrosulphite; (2) water, sodium perfluorocaprylate, ammonium persulphate and disodium phosphate; (3) water, ammonium perfluorocaprylate, ammonium persulphate and sodium pyrosulphite; (6) water, ammonium perfluorocaprylate, ammonium persulphate, sodium pyrosulphite and ferrous sulphate; (7) water, ammonium persulphate and ferrous sulphate; (8) hydrogen peroxide and perfluorobutyric anhydride; (9) azo-bisisobutyronitrile and perfluorocyclobutane; (10) lauroyl peroxide and perfluorocyclobutane; and (11) benzoyl peroxide.
Patent GB-1110166-A (GB)
Title: Improvements in or relating to an internally-meshing gear pump or motor
IPC: F04C2/10
Filed: 1964-07-09
Abstract: 1,110,166. Rotary pumps and motors. K. EICKMANN. July 9, 1964, No.1832/67. Divided out of 1,110,161. Heading F1F. A rotary pump or motor of the internally meshing gear type comprises inner and outer toothed rotors eccentrically mounted one with respect to the other wherein one of the rotors includes radially extending end walls rotatable with that rotor which sealingly embraces the end faces of the other rotor. In one embodiment, an inner rotor 94, Fig. 1 having six external teeth includes end walls 94A, 94B rotating with the rotor having surfaces 13, 14 sealingly embracing surfaces 60, 61 on an outer rotor 95 having seven internal teeth. The end wall 94A is flanged around its periphery to receive a closure member 7C between which and the end wall 94A is a plurality of pressure balancing chambers 7A isolated from one another by sealing rings 7B. Each chamber 7A, is larger in extent than the corresponding portion of the working chamber between the rotor teeth and communicates with each of these portions through a port (7D), Fig. 3 (not shown) so that the inner rotor 94 is urged sealingly against the outer rotor 95. Pressure fluid to and from the pump or motor passes through a control pintle 89 fitted within an axial bore in the drive or driven shaft 62. In another embodiment, an outer rotor (195), Fig. 7 (not shown) includes end walls (195A), (195B) rotatable therewith which abut the opposite end faces of an inner rotor (194). Pressure balancing chambers similar to the chambers 7A are fitted. In this embodiment, pressure fluid is delivered to and exhausted from the working chamber in an axial direction. Arcuate recesses (101E), (101F) around the outer rotor (195) are connected respectively to ports (185A), (185B), Fig. 6 (not shown) to balance the corresponding pressures in the working chamber so that the outer rotor is "floating" and friction thereby reduced.
Patent GB-584722-A (GB)
Title: Bile acid derivatives
IPC: C07D295/088
Filed: 1945-01-24
Abstract: Keto-bile acid esters of the formula R.COO (CH2)nNR1R2, where R.COOH represents a keto-bile acid, such as dehydrocholic acid or dehydrodesoxycholic acid, and R1 and R2 represent alkyl groups or together form the residue of a heterocyclic group which includes the N atom in the ring, are prepared by esterifying the keto-bile acid with the N-disubstituted aminoalkyl alcohol or halide, in which the substituents are R1 and R2, as defined above.  In the examples, (1) dehydrocholic acid chloride is reacted with diethylaminoethanol; (2) dehydrocholic acid is esterified in the presence of sulphuric acid with diethylaminoethanol; (3) sodium dehydrocholate is reacted with b -chlorethyldiethylamine, g -chlorpropyldiethylamine, b -chlorethylpiperidine or b -chlorethylmorpholine hydrochloride.
Patent GB-999368-A (GB)
Title: Improvements in or relating to the synchronising of a sound recorder and/or reproducer with a cinematograph film
IPC: H02P5/52
Filed: 1963-01-16
Abstract: 999,368. Electric synchronizing. K. C. WARNER. Jan. 16, 1964 [Jan. 16, 1963], No. 1960/63. Heading H2L. Sound apparatus 3 is driven in synchronism with a film projector 5 by means of photo-cell 1 receiving light reflected from screen 4. The photo-cell is connected to unit 2 which provides alternating current for operating a synchronous motor driving a tape capstan. A frequency multiplier may be connected between the photocell and motor so enabling the film frame projection frequency to be increased to a value suitable for driving the motor. In one arrangement, flicker blades obscure momentarily the projection light, the alternating current for driving the motor being dependent upon the frequency of operation of the blades which is a multiple of the frame repetition frequency. The output of the photo-cell may be supplied to a transistor amplifier, or to a vibratory reed inverter providing sufficient power to drive the synchronous motor. The photo-cell may sense the light coming directly from the projector, or may view the rear of the projection screen.
Patent GB-572298-A (GB)
Title: Trichloropropionitrile and method of preparing the same
Filed: 1941-02-13
Abstract: Trichlorpropionitrile is prepared by passing chlorine into acrylonitrile, b -chlorpropionitrile or a  : b  - dichlorpropionitrile.  In examples, acrylonitrile and b -chlorpropionitrile are chlorinated and the product fractionated to give trichlorpropionitrile.  Polymerization inhibitors such as hydroquinone, phenyl-b -naphthylamine, diphenyl-p-phenylenediamine may be used.  a  : b -Dichlorpropionitrile may be made by chlorinating acrylonitrile in the presence of water.  An emulsifying agent and a metalhalide halogen carrier may be added.
Patent GB-1520701-A (GB)
Title: Noise absorber for air or gas flows
IPC: F24F13/24
Filed: 1977-01-19
Abstract: 1520701 Silencing gaseous flow TEMET OY 19 Jan 1977 [21 Jan 1976] 02035/77 Heading F1B A silencer for gas flow, for example in ventilating ducts, comprises a flow channel 1 bounded by one pair of concave walls 4 and 5 and one pair of convex walls 6 and 7 the cross-section normal to the flow direction being substantially rectangular and compartments 17, 18 are provided externally of and adjacent the walls 4 to 7 to function as resonator and/or absorption mufflers. The flow cross-sectional area of the duct 1 is substantially constant along the duct. An insulating layer 8 of noise absorbing material is fixed to the inner surface of the duct.
Patent GB-1206811-A (GB)
Title: Improvements relating to track communication systems for moving trains
Inventor: OGILVY HARRY HEGGIE
IPC: B61L13/04
Filed: 1968-01-15
Abstract: 1,206,811. Track signalling. BRITISH RAILWAYS BOARD. 13 Nov., 1968 [15 Jan., 1968], No. 2062/68. Heading B7N. [Also in Division H4] In a track communication system for moving trains in which information is transmitted to or received from a train by induction between apparatus on the train and a pair of insulated conductors A, B extending along the track, the conductors are provided with metallic sheaths 3 which do not interfere substantially with the induction process and which are divided into sections, insulated from each other, with corresponding sheath sections of each cable being short circuited by straps 4. The arrangement maintains the line attenuation and characteristic impedance constant under varying ground conditions. Only one cable sheath may be divided, Fig. 7 (not shown), and where the circuit comprises one insulated cable and a rail of the track the sheath sections of the cable are short circuited to the rail.
Patent GB-554348-A (GB)
Title: Improvements relating to ferrous sheets for fabricating into cans
IPC: B23K35/28
Filed: 1942-02-16
Abstract: 554,348. Modifying metallic surfaces ; coating with metals. PYRENE CO., Ltd. Feb. 16, 1942, No. 2072. Convention date, Feb. 17, 1941. [Class 82 (ii)] [Also in Group XXII] A ferrous metal sheet, to be used in making cans, deed boxes, or other articles, having solaered seams, is coated with a hard and thin prosphate coating, to which solder will not easily adhere, at those parts which are exposed in the finished article and then has solder applied to it so that the parts to be united are coated therewith. The sheet may be coated all over with the solder-resistant coating and then this may be removed by sand blasting or grinding to expose the parts to be united by solder. This is preferably applied at once by immersing the whole sheet in molten tin, which may be covered with palm oil. The sheet, if not a single blank, is then cut up into blanks each having tinned strips. The solder resistant coating may be painted before or after the forming operations. The hard and thin phosphate coating may be formed by spraying on a solution made by dissolving 8.75 pounds of zinc oxide in 21.8 of 75 per cent. phosphoric acid and 8.35 of 42‹ BÚ nitric acid, diluting to 180 gallons, and then adding 35 of sodium chlorate, 1 of zinc carbonate and 10 grams of copper carbonate. The chlorate, which is about five times the proportion usual, may be replaced by nitrite and bromate, with or without the zinc nitrate. Another solution is made by dissolving 7.5 pounds of concentrated zinc phosphate in 180 gallons of water and adding 3.75 of sodium meta nitrobenzene sulphonate and 0.8 of sodium hydroxide. The sheet may be cleaned with naphtha or kerosene emulsion before coating and afterwards be rinsed in water, treated in chromic acid solution, containing 2 grams per gallon, and dried. The Specification as open to inspection under Sect. 91 comprises also the use of an oxide or chromate instead of a phosphate coating. An oxide coating may be formed by treating for 2 minutes with a solution of 20 grams of sodium chlorate and 20 c.c. of 75 per cent. phosphoric acid per gallon at 100‹F. and then rinsing with dilute chromic acid. A coating produced as described in Specification 534,852 is stated to be suitable for cans to be used for dry materials. This subject-matter does not appear in the Specification as accepted.