baber/WOPTO huggingface dataset:
Patent GB-726948-A (GB)
Title: Novel steroids
Inventor: GREEN JOSEPH
IPC: C07J9/00
Filed: 1952-08-01
Abstract: The invention comprises steroids of the formulae (A) <FORM:0726948/IV (b)/1> (B) <FORM:0726948/IV (b)/2> where R is a hydrogen atom or an organic carboxylic acid radical, and the preparation thereof by reacting 5 : 8-peroxido-D 6:22-ergostadiene-3b -ol with one or two mols. of hydrogen in the presence of a hydrogenation catalyst, e.g. platinum oxide or Raney nickel, and if desired acylating the hydroxy group in position three.  Alternatively compound A may be converted to compound B by means of a known dehydrating agent. Examples disclose the production of D 22 - ergosten - 3b  : 5a  : 8a  - triol, D 7:22 - ergostadien - 3b  : 5a  - diol and their corresponding acetates and propionates.
Patent GB-777094-A (GB)
Title: Improvements in wiper arm assemblies for windscreen wipers
IPC: B60S1/34
Filed: 1955-07-07
Abstract: 777,094. Windscreen cleaners. GENERAL MOTORS CORPORATION. July 7, 1955 [Aug. 2, 1954], No. 19663/55. Class 138(1) A windscreen wiper arm assembly comprises a socket 10 for mounting the assembly on an actuator shaft, an intermediate arm member 30 pivoted at 20 to the socket and an outer wiper blade carrying member 40 pivoted at 38 to the member 30, the socket and member 30 and the members 30 and 40 being interconnected by helical springs 26, 42, to urge the members 30 and 40 in one and the same direction of rotation about their pivots 20. 38. The arm members are of channel section and on extension 16 of the socket has a narrow portion-18 carrying the pivot 20 and embraced by the sides of the arm 30. A narrow portion 36 of the arm 30 carries the pivot 38 and is embraced by the sides of the arm 40. The spring 26 is connected to a lug 24, on a pin 22 carried by the portion 18 and to a pin 28 or a retainer block 32 on the arm member 30. Similarly the spring 42 is -connected to a lug 48 or a pin 50 carried by the portion 36 and to a pin 44'or a retainer lock 46 carried by the arm member 40.
Patent GB-709406-A (GB)
Title: Improvements in or relating to telephone systems
Inventor: BEALE CHARLES EDMOND
IPC: H04Q3/00
Filed: 1951-07-06
Abstract: 709,406. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. July 3, 1952 [July 6, 1951], No. 19710/53. Divided out of 709,399. Drawings to Specification. Class 40 (4) In a system employing voice-frequency impulse signals for setting up, control and supervision of connections extending over routes connecting widely separated exchanges, a terminating exchange is provided at the incoming end of an inter-exchange route with equipment which subsequent to seizure is adapted in response to a voice-frequency signal representing a dialled impulse to open the forwardly extending d.c. loop circuit for a period equivalent to the duration of said dialled impulse and in response to a voicefrequency signal having a persistence which is long compared with a dialled impulse to open said loop circuit for a period substantially equivalent to the longest dialling impulse likely to be received. A sufficiently prolonged voice-frequency signal brings about a second and continuous opening of the loop to initiate the release of the automatic switching equipment. The invention is described with reference to a system identical with that described in Specification 709,399.
Patent GB-1329782-A (GB)
Title: Intercell connectors for storage batteries
IPC: H01M50/529
Filed: 1971-06-10
Abstract: 1329782 Welding by pressure E S B Inc 10 June 1971 [22 June 1970] 19933/71 Heading B3R [Also in Division H1] To provide an intercell connection in a lead-acid storage battery having a propylene body with a partition 14, and lead composition straps 24, 26 connected to the plates, a rotatable, translatable mandrel 34 supporting a conical insert 32 which may alternatively have a flange (38), Fig. 2 (not shown), and sharp edged collar (40) to form lead alloy insert 33, Fig. 3, presses the conical insert, rotating at high speed, at an angle into extensions 28, 30 of the straps, forming a friction weld between the elements 28, 30, 33, and softening the partition 14 to form an intercell seal. The flanged insert has a steel pipe (42) with a rough surface or coarse screw thread, and a triangular, square or hexagonal driving boss (46), which may be axially extended and provided with a neck (58), Fig. 4 (not shown), so that the boss shears off at a given torque. A hot melt sealing compound 60, comprises a resinous acid, an aliphatic hydrocarbon wax and ethylene isobutyl acrylate copolymers, and placed between the extensions 28, 30 and the partition 14, acts as a welding flux and sealant.
Patent GB-952768-A (GB)
Title: Improvements relating to a method of and apparatus for guiding aircraft to a restricated landing surface
IPC: B64C29/00
Filed: 1961-06-02
Abstract: 952,768. Radio navigation. MESSERSCHMITT A.G. June 2, 1961 [June 2, 1960], No. 199461/61. Heading H4D. An automatic landing system for VTOL aircraft comprises two pairs of spaced transmitters S1, S2, and S3, S4 with orthogonal base lines mounted on the landing area and transmitting harmonically related modulation frequencies f AM1 , f AM2 , F AM3  and f AM4  such that a predetermined phase difference between the modulation signals from S1 and S2 defines one hyperboloidal surface H1 and a predetermined phase difference between the modulation signals from S3 and S4 defines an intersecting hyperboloidal surface H2, the intersection of the surfaces H1 and H2 defining a hyperbolic landing path L. By selecting appropriate values for the predetermined phase differences, any one of a plurality of such landing paths, Fig. 3 (not shown), may be selected. In operation, the direction of the aircraft is controlled automatically by a control signal derived from the measured phase differences and the speed of the aircraft is automatically controlled in accordance with the distance of the aircraft from the landing area as computed from the X, Y, Z co-ordinates of the craft, the Z coordinate being determined by an altimeter and the X and Y co-ordinates being computed from the measured phase differences. In order to avoid ambiguities the base line of each aerial pair S1, S2 and S3, S4 is chosen to be less than one wavelength of the lowest modulation frequency f AM1  and said frequency is chosen so that the maximum possible phase difference t s  max., Fig. 5 (not shown), is much less than, e.g. a quarter of, the periodic time of the highest modulation frequency f AM4 . The carrier frequency (e.g. X band) is also frequency modulated, e.g. at 30 c/s., to prevent stationary carrier frequency interference zones; this frequency modulation may be omitted when the length of the aircraft receiving aerial is greater than half the wavelength of the carrier frequency. At the receiver, Fig. 4 (not shown), the separated modulation signals f AM1  . . . f AM4  are converted into corresponding pulse trains, the pulse trains f AM2  . . . f AM4  are each divided down to f AM1  and appropriate pairs of pulse trains are applied to counters to give time interval signals corresponding to the required phase differences. The timing of the output pulses from the divide-by-two circuit may be in error by T/2 where T is the periodic time corresponding to the frequency f AM1 ; in this case the time interval between the pulses applied to the corresponding counter will be greater than t s  max. and if this occurs a stop pulse is automatically applied to the divider to suppress one input pulse thereby removing the T/2 error; a similar arrangement is provided for the other dividers.
Patent GB-147934-A (GB)
Title: Receiving device for subaqueous sound signals
IPC: G01S1/72
Filed: 1920-07-09
Abstract: 147,934. Signal Ges. Dec. 16, 1914, [Convention date]. Detecting subaqueous sounds.-In apparatus for receiving subaqueous sound signals in which a tunable oscillatory structure is interposed between the diaphragm &c. B receiving the sound impulses from the water, and the microphone or other receiver proper M, the oscillatory structure comprises two or more masses G<1>, G<2> connected by an elastic support E which vibrates principally in a direction normal to the diaphragm &c. This construction allows, by suitably selecting the masses and the material and dimensions of the support, adjustment of the ratio between the energy retransferred to the water and the energy passed on to the microphone. The elastic support may be a metal rod, or rods of circular, cruciform, or other cross-section. The device may be tightly coupled to the diaphragm, as shown, or an elastic support may be interposed between the mass G<2> and the diaphragm. In specified circumstances, a support of lead or similar material giving a damping effect may be used between the mass G<2> and diaphragm. In some cases the elastic rod may be replaced by a transverse member or beam fixed to the diaphragm at one or both ends.
Patent GB-1033358-A (GB)
Title: Treatment of molten iron and agents therefor
Inventor: HITCHCOCK JOHN OLIVER
IPC: C21C1/10
Filed: 1964-05-13
Abstract: An addition agent for adding magnesium to molten iron consists of compacts in which the magnesium is present as nickel-coated magnesium powder and amounts to 10-50% by weight of the compacts. The compacts may be formed wholly of nickel-coated magnesium powder or may also contain powdered diluents, such as iron, silicon, copper or additional nickel.  The compacts may incorporate a binder or may be enclosed in polythene bags to facilitate handling; they may also be sintered.  The magnesium powder is preferably coated by thermal decomposition of nickel carbonyl.
Patent GB-649468-A (GB)
Title: Device for holding peeling knives in veneer peeling machines
IPC: B27L5/02
Filed: 1948-07-28
Abstract: 649,468. Veneer-peeling machines ABBEY, A. (Aktiebolaget Siefvert & Fornander). July 28, 1948, No. 20167. [Class 145(i)] In a device for holding a peeling knife in a veneer-peeling machine, wherein the peeling knife is held against a supporting plate, a plurality of locking wedges are disposed between at least one counter support and the peeling knife to lock it in position when guided in the wedging direction. In the form shown, the peeling knife 3 is held between the supporting plate 1 and the counter-support 6 by a wedge 8, comprising a plunger 9 moving in a cylindrical guide 5, the plunger being moved by a set-screw 13 engaging in a tapped hole within the plunger. The peeling knife itself may be moved by adjusting blocks 17 and set-screws 16. The wedge 8 is connected by a rod 15 to other wedges the plungers of which are spring- loaded. In another form, the wedge 8 is connected to a plunger which is moved hydraulically.
Patent GB-316179-A (GB)
Title: Improvements relating to the electrical transmission of pictures
IPC: G02F1/07
Filed: 1929-07-01
Abstract: 316,179. British Thomson-Houston Co., Ltd., (Assignees of Alexanderson, E. F. W., and Kell, R. D.). July 24, 1928, [Convention date]. Copying-telegraphy; television; light-valves.- In a copying-telegraph or television system including a Kerr cell 13, for example as described in Specification 235,857, a plurality of glass plates is used as the polarizer 12 and as the analyser 14 for the light transmitted through the cell. A perforated disc 7 is interposed between the screen 1 on which the image is to be projected, and the light valve 6, to overcome blurring produced by multiple reflections from the surfaces of the glass plates.
Patent GB-1247601-A (GB)
Title: Kiln for heat treatment of articles on a continuous basis
Inventor: ANDERSON LEEMING
IPC: F26B15/04
Filed: 1969-04-21
Abstract: 1,247,601. Continuous heat treatment or drying kilns. L. ANDERSON. 21 April, 1969, No. 20216/69. Headings F4B and F4G. A kiln for the continuous heat treatment of articles comprises a base 10, an annular enclosure 11 on the base, exit and entrance facilities at 22 and 21 in the enclosure walls, an annular product-carrying component 37 movable circumferentially round the enclosure and means for moving it and a plurality of curing zones each comprising a floor, inner and outer wall and a roof, the floor of at least one zone being formed as a water pan. As shown, for curing concrete products, the kiln is divided into zones 26, 27 and 28 defined by air curtains or automatic doors 30, 31, 32 and 33, pre-set zone 26 being maintained at, e.g. about 70‹ F., lowtemperature zone 27 at, e.g. about 160‹ F. and high-temperature zone 28 at, e.g. about 360‹ F. Zone 27 has transverse dams on its floor to provide the water pan. The articles may be formed in the roofed central area. Component 37 comprises a framework providing ledges for supporting the articles and may move on wheels round a track on the floor of the annular enclosure, or its base may be a track whereby it rolls on a plurality of wheels round the enclosure (Figs. 6, 7, not shown) a power source 62 drives a gear (60) which engages a tooth rack (59) (Fig. 3, not shown) fixed to the productcarrying component.
Patent GB-335633-A (GB)
Title: Apparatus for indicating and/or registering scores for ball games and similar purposes
IPC: A63B71/06
Filed: 1929-07-02
Abstract: 335,633. Iles, J. H., (Playmor Golf Inc.). July 2, 1929. Selective signalling apparatus.-A registering device for ball games is operated by a motor controlled by a device which may be set for a pretermined movement by, and which is operated by, electric circuits opened or closed by switches relating to a number of positions. Balls played into one of three holes close a switch thereby energizing a corresponding magnet 12, 13 or 14. Energization of magnet 13 say, lifts the corresponding pivoted sprung catch 16, allowing a oorresponding pivoted contact 17 to turn under the action of a spring 20 to meet a contact 18, Figs. 4, 5. There are four pairs of contacts 17, 18 mounted on a turntable 21, in electrical connection with rings 23, 22 and collectors 25, 24 respectively. The contacts 17, 18 corresponding to magnet 13 being closed, the motor 29 becomes energized through a double pole main switch 74 of an appropriate supply, see Fig. 3, and the turntable is rotated by a pulley 31, belt 32, pulley 33, ,shaft 34, gearing 35, 36, shaft 37, and gearing 38, 39, the last being such that shaft 37 rotates four times for one revolution of the turntable. When the lever 17 comes against the projection 30, it turns until the sprung catch 16 again locks it off contact 18 thereby stopping the motor. The turntable has moved 90' and the shaft 37 has made 1 revolution, and through the agency of a crank disc 44, lever 45, pawl 46, the ratchet wheel 47 and its shaft 48 are rotated a distance equivalent to one tooth, Fig. 7. The wipers 49, 50 attached to the shaft, 48 pass over one segment of the commutator 51, an appropriate score being thereby registered on a suitable indicator 55 in electrical connection with the commutator 51. Energization of the magnet 12 or 14 would advance the wiper 49 two or three segments and register a score accordingly. A brake 57 normally acting on the shaft 34 is released by energization of a magnet 58 in series with a lamp 61 through a spring contact 26b actuated by a cam 73 on the shaft 37, such that the contact is broken once; per turn of shaft 37 when the projection 30 breaks contacts 17, 18, the brake, in each case, being released when the motor circuit has been broken.
Patent GB-1459078-A (GB)
Title: Means on or attachable to a textile machine for the positioning or receiving of a thread end and its transport along a pre- determined path
IPC: B65H51/32
Filed: 1975-05-14
Abstract: 1459078 Threading up devices PALITEX PROJECT CO GmbH 14 May 1975 [29 July 1974] 20254/75 Headings D1D and D1J A device for threading up a textile machine comprises a tube 1 which contains a piston 3, movable by compressed air or suction admitted the tube via control valves, and around which a ring 5 or part ring extends, the piston and ring or part ring being magnetically coupled by at least one of these members being magnetic, the ring also having means to hold a thread, e.g. a gripper 6, 7 or thread comb. The gripper jaws 6, 7 are held closed by a spring urged rod 11 which can be manipulated by a pneumatic or electrical device 16 at the end of the tube. The threading up device may be fixed at a spinning station of a double twister, Fig. 4, extending from the top edge of a balloon limiter 18 to above a friction winding roller 23 and bobbin holder 26. In an alternative embodiment, Fig. 6, the device is mounted on a carriage 41 which runs along the textile machine on rails 39 to stop at any required station. The gripper operating device 16 is preferably on the carriage 41 but may 'be fixed to the machine frame.
Patent GB-774462-A (GB)
Title: Novel unsaturated esters ethers and aldehydes and a process for the manufacture thereof
Filed: 1955-07-13
Abstract: The invention comprises 1-esters and 1-ethers of 1,3,6-trihydroxy-2,6-dimethyl-8-[21, 61, 61-trimethyl - cyclohexen - 11 - yl] - octadien - 1,7 - yne - 4, 2,6 - dimethyl - 8 - [21,61,61 - trimethyl-cyclohexen - 21 - ylidene] - octadien - 2,6 - yn - 4 - al - 1, 2,6 - dimethyl - 8 - [21,61,61 - trimethyl-cyclohexen-21-ylidene]-octatriene-2,4,6-al-1 and a process of condensing 3-hydroxy-3-methyl-5-[21,61,61 - trimethyl - cyclohexen - 11 - yl] - penten - 4 - yne - 1 with an ester or ether of 3 - hydroxy - 2 - methyl - propen - 2 - al - 1 in an organo-alkali metal or Grignard reaction to produce said 1-esters and 1-ethers, and, if desired, converting the 1-ester or 1-ether to an aldehyde by treatment with an acid agent and selective hydrogenation of the product.  The organo alkali-metal reaction may be effected using phenyl-lithium in diethyl ether or lithium amide or sodamide in liquid ammonia.  The conversion of the 1-ester or 1-ether to the acetylenicaldehyde may be effected in aqueous acetone with sulphuric acid.  The selective hydrogenation may be effected in the presence of a small quantity of quinoline and of a palladium lead catalyst. Starting compounds. 3-Hydroxy-3-methyl-5-[21,61,61 - trimethyl - cyclohexen - 11 - yl] - penten-4-yne-1 is obtained by condensing b -ionone with lithium acetylide in liquid ammonia; 3-hydroxy - 2 - methyl - propen - 2 - al - 1 is obtained by reacting the sodium salt methylmalonyl dialdehyde with an acid chloride in an inert water-free solvent or by reacting methylmalonyl dialdehyde with an alcohol at an elevated temperature; the sodium salt of methylmalonyl dialdehyde is obtained by condensing a propenyl ether with ortho-formic acid ethyl ester to form the tetraethyl acetal of methylmalonyl dialdehyde, which is subsequently hydrolysed and neutralised with caustic soda.
Patent GB-149324-A (GB)
Title: Improvements in sound producing or receiving devices
IPC: G01S1/72
Filed: 1920-07-10
Abstract: 149,324. Signal Ges. Aug. 4, 1919, [Convention date]. Addition to 147,939. Subaqueous audible signals; detecting subaqueous sounds. - In apparatus for producing and receiving sounds in which, as described in the parent Specification, t h e sound is transferred from one medium to another of different compressibility (e.g. air to water or vice versa) by the use of a small chamber 4 of flat form closed by a diaphragm 1 separating the media, and communicating through a small orifice 5 with a tube. 6 leading to the sound producer or receiver proper, a free space or gap 8 is left between the chamber and the tube. Mechanical continuity of structure is maintained, and entrance of dirt prevented, by a sleeve 7 embracing the chamber wall 2 and tube 6 and situated away from the gap 8.
Patent GB-1469058-A (GB)
Title: Noise reduction circuit
IPC: H04B1/62
Filed: 1975-05-14
Abstract: 1469058 Volume expansion R M GRODINSKY 14 May 1975 [20 May 1974] 20403/75 Heading H4R In a volume expander for noise reduction of uncompressed or randomly compressed audio signals, volume expansion is applied over the full frequency range of the audio signal controlled by a signal derived only from the higher frequency region of the audio signals, i.e. the region of the audio signal containing appreciable energy content of the harmonics of the signal. As described the audio signal can be applied to a resistive potentiometer (2) Fig. 9 (not shown) one element of which is a photosensitive resistor illuminated by a light emitting diode fed from the output of a high pass filter connected to receive the audio signal being expanded so that the attenuation of the potentiometer decreases with the increase in level of the high frequency components of the signal. In alternative embodiments the filter can be an RC circuit, (3) Fig. 5 (not shown) or an LC band pass filter 3<SP>1</SP>, Fig. 6. The filtered signal is rectified and applied to a ripple filter capacitor 16, Fig. 6, having a time constant of 50-200 m.secs., and a circuit 5<SP>1</SP> which has two paths to the control input of amplifier 2. One path via resistor 17 exercises a relatively rapid control while a second path, including resistor 18 and capacitor 19 provides a longer time constant circuit which provides a response to slow variations in the dynamic range of the audio signal. In addition a further stage of filtering, having a rapid charge and slow discharge, can be provided between the rectifier and controlled amplifier by diode 28, resistor 27, and capacitor 29. Transistor 30 provides isolation between the further filter and the controlled amplifier 2.
Patent GB-712179-A (GB)
Title: Improvements in and relating to the production of nitrogenous fertilisers
Inventor: ETTLE GILBERT WILLIAM
IPC: C05C9/02
Filed: 1950-08-17
Abstract: A urea-aldehyde condensation product for use as a fertilizer, is made by heating a substantially anhydrous mixture of urea and paraformaldehyde, in the molar ratio of 1:1 to 2:1 and in the absence of condensation or buffer agents, at a temperature of 70 DEG  to 120 DEG C. to form a slurry which is solidified by further application of heat or by cooling and is then broken up and dried. The slurry may be solidified in the reaction vessel by prolonged heating, but is preferably discharged and solidified on a chilled or heated metal roll or plate and broken up into flakes. Solidification may be accelerated by adding mineral acid, e.g. nitric acid, to the slurry in the reaction vessel prior to the discharge.  The broken up solid product is dried preferably at 130 DEG C. or below and may be further crushed or powdered and granulated, e.g. by the addition of moisture and, if desired, other fertilizers such as ammonium sulphate, or an inert diluent such as anhydrite, gypsum, chalk, starch or plaster of Paris; the latter diluent may be added to the slurry in the reaction vessel. Specification 712,178 is referred to.ALSO:A fertilizer composition is made by granulating a urea-formaldehyde condensate (see Group IV(a)), preferably in a dried and crushed or powdered form, by the addition of moisture and other fertilizers, such as ammonium sulphate, or an inert diluent such as anhydrite, gypsum, plaster of Paris, chalk or starch.  Specification 712,178 is referred to.