baber/WOPTO huggingface dataset:
Patent GB-1389654-A (GB)
Title: Web tension control for paper textile and plastics processing  machines with electric coiling units
IPC: B65H23/188
Filed: 1973-01-29
Abstract: 1389654 Web tensioning devices KLEINEWEFERS INDUSTRIE-COMPANIE GmbH 29 Jan 1973 [29 Jan 1972] 4415/73 Heading  B8R A web tensioning device comprises a rocker 5 one end 4 of which supports a bearing 3 of a  web tensioning roller 1 and the other end 8 of which carries a diaphragm cylinder 9 which maintains the rocker in a floating condition, the change in web tension causing the rocker to energize or de-energize a micro-switch 13 which controls the output of a web winding motor 17. The switch 13 may be replaced by a fluid valve.
Patent GB-1443661-A (GB)
Title: Process of developing a light-sensitive silver halide photographi material
IPC: G03C7/305
Filed: 1974-01-31
Abstract: 1443661 Heterocyclic thio compounds KONISHIROKU PHOTO INDUSTRY CO Ltd 31 Jan 1974 [5 Feb 1973] 4434/74 Heading C2C [Also in Division G2] The following compounds are prepared conventionally
Patent GB-1117851-A (GB)
Title: Improvements relating to the catalytic cracking of hydrocarbons, and catalysts used therefor
IPC: B01J23/755
Filed: 1967-01-30
Abstract: A process for producing gas mixtures containing H2, CH4, and carbon oxides by a continuous reaction of hydrocarbons boiling below 250 DEG C. with water vapour (and possibly air) on catalysts containing Ni as acive metal on a ceramic support is characterized in that water vapour and hydrocarbon vapours are passed in a ratio of 1.5:1 and 3.5:1 at a temperature above 350 DEG  C. and pressure of 15-45 atmospheres over a catalyst disposed in heated tubes which has been prepared by successively (a) sintering Al2O3 in special shapes at 1350 DEG -1600 DEG  C. until the pore volume is 10-55% of normal; (b) impregnating with a Mg salt which is a precursor for MgO and heating at 800-900 DEG  C. for 2-8 hours; (c) reimpregnating with Mg and Ni salts and reheating at 800-900 DEG  C. for 2-8 hours; and (d) repeating (c) for Ni salts only.  Examples describe the production from gasoline (the properties of which are given) of a gas containing 22% CO2, 0.9% CO, 13.9% H2 and 63.2% CH4 with a calorific value of 6650 K cal/Nm3.  Other gases of different percentage composition (more hydrogen and less methane) have calorific values of 4850 and 3520 K cal/Nm3.ALSO:Cracking catalysts are made by (a) sintering Al2O3 shapes at 1350-1600 DEG C. until the pore volume is 10-55%, (b) impregnating the sintered oxide with a solution of a magnesium salt and heating at 800-900 DEG C. for 2-8 hours to convert the salt to oxide, repeating (b) using a mixture of magnesium and nickel salts as impregnants, and repeating (b) using nickel salt alone. Catalysts made in this way may have a nickel content of 8-15% and a magnesium content of 3-10%.  Nitrates and acetates of Mg and Ni are usually used as impregnants.
Patent GB-405115-A (GB)
Title: Improvements in compound metal sheets
IPC: B32B15/01
Filed: 1933-02-14
Abstract: 405,115. Compound sheets. ROESCH, A., (trading as WAGNER, F.), 31, Tunnel Strasse, Pforzheim, Baden, Germany. Feb. 14, 1933, No. 4450. Convention date, May 11, 1932. [Class 83 (ii).] Compound sheets known as double, for use in precious metal industries, in which top thin layers or overlays of precious metal are united to underlays of baser metals which are usually of greater thickness, both layers being of heavy metals or alloys, have proportions of light metals such as beryllium or aluminium combined with the overlay metal or with both the overlay and underlay metals. Compositions of underlay metals are given containing copper and up to 10 per cent of aluminium or beryllium ; examples of overlay metals are also given.
Patent GB-702380-A (GB)
Title: Improvements in or relating to a food storage arrangement proof against air attack
IPC: E06B5/14
Filed: 1953-02-17
Abstract: 702,380. Air tight covers. MANNESMANN AKT.-GES. Feb. 17, 1953 [Sept. 9, 1952], No. 4478/53. Class 123(1) [Also in Group VI] An underground food storage chamber 1 is protected from the effects of air attack &c. by a cover 4 flush with the ground and is provided with sealing means such as a groove 5 to contain a sealing strip, pressed down against a Z-section frame surrounding the upper edge 2 of the chamber. The cover 4 may be hinged at 9 and provided with lifting handles in recesses. The cover surface may be corrugated on top and may have meat hooks 16 underneath. Alternative forms of cover and seal are shown such as in Fig. 2 where a large cover space is subdivided with smaller covers and where the seal is tightened by the pressure of lugs or bolts 6 screwed up from above. The edge of the cover may be shaped to accommodate a seal of cylindrical or trapezoidal section. Alternatively the seal may be located in the top edge of the chamber, and may be a water seal.
Patent GB-1094413-A (GB)
Title: Improvements in or relating to strain measuring instruments
Inventor: ALLEN MAURICE
IPC: G01L1/22
Filed: 1965-02-02
Abstract: 1,094,413. Measuring strain electrically. WESTLAND AIRCRAFT Ltd. Jan. 27, 1966 [Feb. 2, 1965], No.4539/65. Heading G1N. Relates to an instrument for detecting and indicating the maximum strain to which a member is subjected, e.g. due to impact loading in a power press, or loads of short duration. Four strain gauge resistors of a load cell Fig. 1 (not shown) are connected to form respective arms of a bridge circuit Fig. 2 (not shown) energized from a stabilized D. C. source. The bridge output signal is applied via calibrating and amplifying circuits Fig. 2 (not shown) to a unity gain amplifier (Fig. 3) embodying signal storage facilities. The unity gain amplifier input signal from a resistor 36 is applied to a transistor 37 the output of which is applied via an impedance matching transistor 39 and resistor 40 to the base of a charging transistor 41, which charges a storage capacitor 42 to a voltage corresponding to the strain representative signal voltage. This voltage is applied direct to a field effect transistor 43 which acts as a very high impedance to the charge in C42, and senses the voltage without permitting discharge, and feeds the signal to the base of a transistor 44 which drives a meter 45 to indicate the value of the charge in C42 and hence the strain. Part of the signal from transistor 44 is fed back through a diode 38 to transistor 37 so that the whole unity gain amplifier operates at the potential of the input signal even when the input signal is removed or withdrawn. The capacitor 42 therefore holds the strain representative signal until a greater force produces an increased signal. A relay 64 may be provided to operate a warning device or shut down, or to operate a correction device to reduce the load. Switching means are provided whereby the storage facility can be eliminated so that the indicator or display means will respond to the growth and decay of the strain. The load cell construction is described with reference to Fig. 1.
Patent GB-247963-A (GB)
Title: Improvements in portable toilet seats
IPC: A47K13/00
Filed: 1926-02-17
Abstract: 247,963. Smith, L. F. Feb. 19, 1925, [Convention date]. Folding and collapsable seats. - A portable commode seat 7 has on its underside spaced bearings 16 for pairs of hinged legs 11, 12, the connecting portions 10 being off-set and bent at an angle so that they limit the movement of the legs and form cross-braces for the seat. Catches 19 are provided for locking the legs in position, and hooks 22 may be provided for supporting a receptacle. The front legs are longer than the rear legs so that the seat slopes rearwardly.
Patent GB-119399-A (GB)
Title: Improvements in or relating to Apparatus for Producing Oil Gas.
Inventor: PICKARD WILLIAM
Filed: 1918-03-15
Abstract: 119,399. Pickard, W., and Dobson, D. R. March 15, 1918. Oil gas.-Oil gas is obtained by a process in which water and oil vapours are passed over heated iron filings and over heated iron and charcoal in the apparatus shown. Hydrocarbon oil is heated in a chamber a arranged above gas burners f, which may be supplied with gas formed in the apparatus, and acidulated water, preferably a solution of sulphuric acid, is heated in a chamber b, fitted with a heating coil c which receives steam from a pipe c<1> and discharges into a pipe d connected to a chamber k which exhausts into the atmosphere at k'. The oil and water vapours pass through iron filings h, i arranged on perforated trays with a space between. The vapours then pass through a mass of iron filings and charcoal l heated by burners m, and the gas formed passes through porcelain or like tubes k<2> in the heated chamber k into a chamber n whence the gas is led to a holder p, or to internal-combustion engines q, or r. The burners f, m may be supplied from the holder p.
Patent GB-596916-A (GB)
Title: Improvements in or relating to thermionic valve oscillators
IPC: H03L5/00
Filed: 1945-02-23
Abstract: 596,916. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd., and MENGEL, G. P. DE. Feb. 23, 1945, No. 4600. [Class 40 (v)] An amplitude stabilized oscillator comprises a thermionic amplifier having three admittance branches connected between the input, output and cathode(s) respectively, a conductance component in one of the branches being varied automatically to maintain the amplitude constant, the network being proportioned so that the frequency of oscillation is substantially independent of the conductances of the branches and valve(s). Transitron-coupled valve 4, Fig. 2, oscillates at a frequency determined by tuned circuit 20, 21, the amplitude being stabilized by thermistor 23 in series with resistance 22, tapped resistance 13 providing bias for the control and suppressor grids to ensure operation on the linear part of the valve characteristic. In a modification, Fig. 5 (not shown), the resistance 22 and thermistor 23 are shunted by a variable condenser, an inductance which may be shunted by a trimmer condenser being connected in series with the coupling condenser 24. The inductances may be replaced by condensers ; the variable condenser being replaced by a variable inductance. In a further modification, Fig. 4 (not shown), the tuned circuit and thermistor and variable condenser arms are interchanged. The transitron coupled valve 4 may be replaced by a pair of valves coupled over a further tuned circuit, Fig. 6 (not shown). A push-pull circuit, Fig. 7, may be employed, the thermistor 23 and resistance 22 shunting the tuned circuit 28, 54, 55 connected to the anodes of valves 52, 53, the junction of the inductances being tied to earth over condenser 63. The anode of each valve is connected over a coupling condenser 56, 57 to the grid of the other valve, the constant anode current in the pair allowing the normal byepass condenser to be omitted from biassing resistance 58. The inductances 54, 55 may be replaced by condensers and the condenser 28 by an inductance. The thermistors may be of the types described in Specifications 545,679, 555,563, [both in Group XXXVI], and 557,541.
Patent GB-433538-A (GB)
Title: Metallic photographic film
IPC: G03C1/77
Filed: 1934-02-12
Abstract: 433,538. Photographic films ; printing. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Feb. 12, 1934, No. 4631. Convention date, Feb. 10, 1933. Addition to 407,830. [Class 98 (ii)] Comprises a metallic photographic film of aluminium, aluminium alloy or a metal, e.g. copper, coated with aluminium, having as photographic base a porous carrier layer of an aluminium compound artificially produced on the aluminium surface and impregnated with light-sensitive substances in accordance with the process of the parent Specification. The porous layer may be produced by plunging the metal into aqueous solutions or fused substances, with or without application of direct or alternating current. Impregnation with lightsensitive substance may be effected by coating spraying or by immersion. Developed silver pictures may be toned ; and the porous layers may be coloured. The films may be sensitized on both sides. The porous layer may be subjected to intermediate treatment as described in Specification 432,984 ; and the films may be copied by the use of R÷ntgen rays, as described in Specification 435,184. The Specification as open to inspection under Sect. 91 describes also the application of an emulsion e.g. of gelatine or collodion, to the porous layer ; and also the subject-matter of Specifications 432,984 and 435,184. This subject-matter does not appear in the Specification as accepted.
Patent GB-991691-A (GB)
Title: Improvements in or relating to a storage installation, in particular vehicles parking installation
IPC: E04H6/12
Filed: 1964-02-04
Abstract: 991,691. Toy vehicles. A. VOGEL. Feb. 4, 1964 [Feb. 12, 1963], No. 4757/64. Heading A6S. [Also in Divisions B8 and G5] A storage system comprises a helical array of storage sites and a truck movable along a helical trackway inside the helix of sites. The principal application is to mechanical garages for road vehicles, but a smaller scale construction, e.g. in plastic, may serve as a demonstration model or as a toy. The trackway for the truck 5 may be contiguous with the entrance to the sites, as in the garage of Fig. 1, or it may be a track 11, Fig. 3, separated from the sites 12 by a helical ramp roadway 13 so that vehicles may either travel on the truck and be moved across the roadway into storage or may travel under their own power to and from storage, via the roadway. A control system for the truck is provided, preferably mounted on the truck itself. The helix may be partial (as in Fig. 6) or multiple (as in Fig. 7). In the latter case a roadway 27 bridges adjacent helixes.
Patent GB-288409-A (GB)
Title: An improved cloth or cover for covering seed beds and for similar purposes
IPC: A01G9/14
Filed: 1927-02-21
Abstract: 288,409. Logan, Muckelt, & Co., Ltd., and Watts, R. Feb. 21, 1927. Strengthened fabrics with integrally-woven portions having crammed yarns.-A corver for seed beds &c. comprises a cloth formed with narrow borders A and a central longitudinal portion B of a cramped or close weave, the wide intermediate parts C between the borders and the central portion being of more open weave to permit of the passage of air and light. Reference has been directed by the Comptroller to Specification 12901/12.
Patent GB-433544-A (GB)
Title: Improvements in and relating to paper-making machines
IPC: D21F5/02
Filed: 1934-02-15
Abstract: 433,544. Drying-machines for paper. MILNE, S., 38, Lauder Road, Edinburgh. Feb. 15, 1934, No. 4966. [Class 96] The felts e of a paper-making machine are dried by steam-heated cylinders c, d to a low moisture content, and raised to a higher temperature than that of the paper web passing about drying-cylinders a<1>, a<2>. At least 50 per cent of the heat supplied to the paper may be received from the felts e. In arrangements of cylinders alternative to that shown, there may be two rows c above, and two rows d below the paper-drying cylinders a<1>, a<2>, or the felts may pass over 3 paper-drying cylinders and then over 3 felt-drying cylinders; or the cylinders could be arranged in vertical rows. The cylinders c, d may be driven from the cylinders a<1>, a<2> by chains &c.
Patent GB-1364362-A (GB)
Title: 2alpha 2beta 17alpha-trimethyl steroids processes for their  preparation and compositions incorporating them
IPC: C07J1/00
Filed: 1972-02-03
Abstract: 1364362 2,2,17α - Trimethyl steroids ROUSSEL UCLAF 3 Feb 1972 [3 Feb 1971] 5019/72 Heading C2U The invention comprises compounds of formulae wherein R<SP>1</SP> is C 1 -C 4  alkyl; R<SP>2</SP> is Cl, Br, I, OH or C 1 -C 18  carboxylic acyloxy; R<SP>3</SP> is H, alkyl, substituted alkyl, cycloalkyl, heterocyclyl or C 1 -C 18  carboxylic acyl; Z is a "blocking" group (other than one within the scope of R<SP>3</SP>), e.g. trimethylsilyl; and Hal is Cl, Br or I. Compounds I and IV are prepared from the corresponding 4-unsubstituted compounds (in which the 17-hydroxy function is in protected form) by 4-halogenation (e.g. with a sulphuryl halide or N-haloimide) optionally followed by one or more steps selected as appropriate from (i) conversion of 4-Cl or Br into iodo using alkali metal iodide; (ii) acidolysis of the 17-protecting group; (iii) conversion of 4-halo to 4-hydroxy with an alkali metal base; (iv) 4-acylation;  (v) 17-esterification or etherification. 2,2,17α-Trimethyl - 17# - (2 - tetrahydropyranyloxy) estra-4,9,11-trien-3-one is prepared from the corresponding 17-ol with dihydropyran. Antiandrogenic compositions for oral, parenteral and rectal administration comprise a compound I and a carrier.
Patent GB-1179474-A (GB)
Title: 6beta,7beta-Methylene-9beta,10&alpha-Steroids, their preparation, and Compositions containing them
Inventor: THREADGOLD THOMAS DUDLEY
IPC: C07C/
Filed: 1967-02-02
Abstract: 1,179,474. 6#,7# - Methylene - 9#,10α dec - steroids. T. D. THREADGOLD (Philips' Gloeilampenfabrieken N.V.). 2 Feb., 1967, No. 5028/67. Heading C2U. Novel compounds of formula wherein R 2  represents a single or double bond between carbon atoms 1 and 2, R 6  represents H, Cl or F and R 17  represents OH, esterified OH, COCH 3  or CH(OH)CH 3 , are prepared by reacting the corresponding 6-R 6 -#<SP>4</SP> '-compounds with dimethylsulphoxonium methylide, except for the above compounds wherein R 2  is a doublebond while R 6  is H which are obtained by dehydrogenating their 1,2-saturated analogues. Product interconversions described are (a) esterification of a 17#-hydroxy group, (b) oxidation of a 20-hydroxy group to an oxo group and (c) #<SP>1</SP>- dehydrogenation. Compounds of the above formula are described as possessing progestational, gonadotrophin-inhibiting, anti-estrogenic, anabolicandrogenic and pituitary-inhibiting activities. and may be made up with carriers or diluents into pharmaceutical compositions which may be administered orally, parenterally or rectally.
Patent GB-568179-A (GB)
Title: Improvements in and relating to joints for conduits or other containers of fluid under pressure
IPC: F16L19/02
Filed: 1943-03-29
Abstract: 568,179. Pipe joints. FOSTER WHEELER, Ltd. March 29, 1943, No. 5036. Convention date, March 30, 1942. [Class 99 .(i)] Collars 18, 31 secured to the pipes have opposed annular recesses 39, 41 in their jointing faces, the recesses having converging sides and accommodating a resilient sealing ring 43. The ring has a concave outer surface and a convex inner surface and converging sides which form angular edges with the concave and convex surfaces. U.S.A. Specification 2,337,538 is referred to.
Patent GB-714949-A (GB)
Title: Mosaic carrier for three-colour photography and kinematography and method for preparing said carrier
IPC: G03C7/12
Filed: 1952-02-26
Abstract: 714,949. Photographic colour-screen elements. CHEVALIER, G. E. Feb. 26, 1952 [March 17, 1951], No. 5042/52. Class 98(2) A translucent carrier as of plate or film provided with a gelatin-bichromate layer is exposed through a mask as of Fig. 1, treated as in a bath of potassium sulphocyanide to remove unexposed portions of the layer, and coloured as with a green acid dye to produce the result of Fig. 2 with green areas V; the carrier is then resensitized similarly on the same side. exposed through a line mask as of Fig. 3 on the rear thereof, treated again to remove unexposed portions and coloured as with a red dye to obtain the red areas R, Fig. 4; a further resensitization, exposure through the first two colours without a mask, removal of unexposed portions and colouring as with a blue dye provides the final colour B as of Fig. 6, and a conventional panchromatic emulsion layer is then superimposed on the coloured areas. Varnish layers may be provided over the several colour layers. Exposure is effected without, registration and the mask of Fig. 1 need not be uniform since equal sized colour areas as V, R and B always result as long as the first mask as one-third of its surface of transparent areas and the second, the line mask, has one-half of transparent lines. Fig. 8 shows the three colour areas in different shapes.
Patent GB-492379-A (GB)
Title: Improvements in telecommunications system
IPC: H04M11/06
Filed: 1937-02-19
Abstract: 492,379. Combined telegraphy and telephony. FINCH, W. G. H. Feb. 19, 1937, No. 5071. Convention date, Feb. 26, 1936. [Class 40 (iv)] [Also in Group XL] A modulated, locally generated, low-frequency carrier is induced in a telephonic line 45, 46 at a subscriber's station 43 without tapping the wires, and the currents are picked up similarly at another subscriber's station 50 which is connected to the first as for an ordinary call. The carrier is modulated according to the shade of a picture which is to be reproduced. The carrier is passed through one or more solenoids 40, which are on, or near the telephone box 41 and lie on the axis of an induction coil 44 in the box, and a similar solenoid 51 picks up the current. The solenoids are clamped to the box, Fig. 6 (not shown), and their position is varied to give maximum induced currents. A compensating network 36 in the inducing circuit gives to the inductive coupling a linear frequency-response, Figs. 3-5 (not shown). The current may be induced electrostatically by applying a high modulated potential to a plate which is near the telephonic line, Figs. 8-10 (not shown). Different signals may be impressed simultaneously on two or more carriers which are separated at the receiver by filters. The frequency band below 2,000 cycles per second may be used for transmitting speech.
Patent GB-717118-A (GB)
Title: Improvements in or relating to tree type electrical circuits
Inventor: NEWMAN EDWARD ARTHUR
IPC: H04Q3/52
Filed: 1950-02-28
Abstract: 717,118. Electronic calculating-apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 5, 1951 [Feb. 28, 1950], No. 5098/50. Class 106 (1) An output circuit arrangement for a tree circuit comprises a series of thermionic valves having separate anode loads and input circuits but a common cathode load. The valves are arranged to be controlled separately by the output voltages from the tree circuit so that only one selected valve in the series passes anode current at each setting of the tree circuit. A tree circuit 1 of order n comprises 2n output leads each feeding the control grid of one of a series of valves 2, 3, 4, &c. Normally the grids are at or below cut-off potential, and when the potential of one grid is raised by a setting of the tree circuit, the respective valve conducts, its anode voltage falls, and the potential on the grid of an associated valve 11 in a gate circuit 9, is lowered. The cathode potential of valves 10 and 11 is thereby lowered and valve 10, whose grid is maintained at -220v, conducts. Thus, a positive .pulse signal applied at the grid of a valve 15 in the anode circuit of valve 10 will cause a negative output pulse from the anode of valve 15 only when the associated tree controlled valve 2 is conducting. The common cathode load 5 may be replaced by a control circuit, Fig. 2, which becomes conducting only when a positive-going pulse is applied to the grid of a valve 17. When working with very short duration and high frequency pulses the anode loads and coupling circuits of the valves 2, 3, 4, &c., Fig. 1, are provided with de-coupling and correcting impedances. In Fig. 2 two further valves 20, 21 having their cathodes and grids connected and controlled in the, same manner as the valves 17 and 18 have inductive loads 22, 23 giving sharp negative and positive peaks which are applied to' valves 24 and 25. The cathode follower 25 applies the positive "off" peak from valve 20 as a positive voltage pulse to the common cathodes in the tree output circuit, Fig. 1: the valve 24 applies the positive "on" peak from valve 21 as a negative voltage pulse to the common cathodes. Specification 717,114 is referred to.