baber/WOPTO huggingface dataset:
Patent GB-638028-A (GB)
Title: Improvements in or relating to frequency measuring devices
IPC: H03D9/04
Filed: 1947-07-03
Abstract: 638,028. Frequency measurements. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 3, 1947, No. 17543. Convention date, July 20, 1946. [Class 37] [Also in Group XL (c)] Apparatus for determining the frequency 'of a U.H.F. oscillator comprises a wave-guide 1, one end of which is closed by a conducting partition 2 to produce a node in the standing waves inside the guide. Two conductors 9, 11 are assembled transversely in the guide through H.F. screens 5, 6, 7, 8, such that the point midway between them is the location of a node of the standing waves if the oscillator is operating at the correct frequency. One end of each conductor 9, 11 is joined by shorting strips 12, 13 and the other ends joined by two similar resistors 14, 15, a low impedance joint 16 connecting the mid-point of the resistors 14, 15 to the mid-point of strips 12, 13. Similar rectifiers 17, 18 are placed in the centre of the conductors. Thus, the voltage across each rectifier is equal, and the potential difference between the outer terminals of resistors 14, 15 will be zero. If the frequency changes, these voltages become unequal, and a potential difference appears across the resistors 14, 15, the magnitude and polarity depending on the magnitude and direction of change of the frequency. The sensitivity is increased by making the cut-off frequency of the operative portion of the wave-guide, i.e. that portion between the conductors 9, 11 and the partition 2, equal to the frequency from which divergency is measured, and also by making this distance a maximum. This may be produced by varying the width of the wave-guide. A cavity acting as a band-pass filter may be added between the U.H.F. oscillator 4 and the conductor 9. The walls of the wave-guide may be flexible.
Patent GB-571178-A (GB)
Title: Improvements in or relating to locking means for the bead portions of a tyre casing
IPC: B60C15/028
Filed: 1943-10-25
Abstract: 571,178. Tyre attachments. FAIRWEATHER, H. G. C. (Goodrich Co., B. F.). Oct. 25, 1943, No. 17572. [Class 144 (ii)] Tyre beads are locked by the thin edges of a laterally stiff but circumferentially flexible band with edges rounded by folding the band closely upon itself at the margins. Air tubes may be dispensed with. The band may consist of several layers of sheet metal floating on each other, and one or more layers may be corrugated or indented. The rim 14, Fig. 2, may consist of a fixed flange 15 having a seat 17 for a removable flange 16 which is secured by bolts 22, the locking of the tyre being effected by the inward pressure of the band or the lateral compression of the rim. The inner faces of the beads 11, 12 may have surface layers 23, 24 of vulcanized soft rubber to act as a sealing gasket, or the edges of the metal band may be covered with metal, plastic or rubber. The band 41 may have outward and inward protuberances 44, 45 and the band may be spaced from the rim by blocks 46 welded or riveted to the band or by forming the parts 45 deep enough. When several superimposed bands are used, they may be of progressively increasing widths outwards to engage the sloping walls of the tyre beads. The bands may be endless or jointed, and in the latter case, the ends are flattened and welded together, the tyre valve stem securing the ends together in an air-tight manner with the aid of rubber gaskets. Several sealing edges may be provided on a single band by accordion pleats 235 ... 240, Fig. 14, formed in the sides of the ring 230. Struts 241, 242 may limit the inward movement of the edges 237, 240 and they may be stiffened by ridges 246. The bridge 231 of the band may be corrugated at 247 so that the air pressure above the band will tend to increase the lateral pressure of the band.
Patent GB-145558-A (GB)
Title: Improvements in motor power plant
IPC: B64D35/08
Filed: 1920-06-29
Abstract: 145,558. Boccaccio, P. Jan. 27, 1916, Motor power plant.-Relates to a grouping of motors for aviation &c. Two or more independent motors a, b are arranged one behind the other in the same vertical plane, but in different horizontal planes, the shaft b<1> of the rear motor b passing above or below or between the cylinders of the forward motor a. The shafts a<1>, b<1> of the two motors carry ratchet-wheels a<2>, b<2> which engage teeth on spring- pressed sleeves a<3>, b<3> having peripheral teeth meshing with a gear-wheel c<1> on the propeller shaft. In case of stoppage of one of the motors, it is automatically disengaged by this arrangement. In addition, the disengagement may be under hand control.
Patent GB-1131039-A (GB)
Title: Treatment of fibrous webs
Inventor: HAWKINS RAYMOND LANDIS
IPC: C08K3/38
Filed: 1966-04-22
Abstract: 1,131,039. Coatings. AIR REDUCTION CO. Inc. 22 April, 1966 [22 April, 1965], No. 17693/66. Heading B2E. [Also in Divisions C3 and D2] Fibrous webs are surface-sized by applying to the web at a temperature of up to 210‹F. an aqueous solution of pH at most 6.0 containing at least 0.5% by weight of polyvinyl alcohol and 15 to 50% of boric acid, based on the weight of polyvinyl alcohol. In examples, the solution, which may also contain a wax emulsion, TiO 2 , or clay and TiO 2 , is applied to paper and paperboard by means of e.g. a size press, calender water box, or air knife coater.
Patent GB-666791-A (GB)
Title: Improvements in and relating to packing for bottles and like articles
IPC: B65D5/50
Filed: 1949-07-05
Abstract: 666,791. Boxes. HARTMANN FIBRE CO., Ltd., and THOMAS. H. E. June 9, 1950. [July 5, 1949] No. 17695/49. Class 18. Means for use in packing bottles or the like in boxes comprises a sheet 1 having holes for the bottle necks, the holes being surrounded by alternately oppositely disposed substantially conical portions for receiving the shoulders of oppositely disposed bottles. The sheet may be used in conjunction with end plates 9 having recesses for receiving the bottle ends. Tne plates 9 may alternatively have projections for engaging recessed bottle ends. The sheet 1 may have extensions enclosing part of the bottles. The sheet and end plates may be of moulded pulp.
Patent GB-483619-A (GB)
Title: Improvements in or relating to foundation garments
IPC: A41C1/06
Filed: 1937-06-25
Abstract: 483,619. Corsets. SMITH, H. A. June 25, 1937, No. 17741. Convention date, Jan. 19.' [Class 141] In a corselette comprising an outer foundation garment and an inner belt, the outer garment consists of an inextensible front section 3 of light fabric with an elastic gusset 13, horizontally-extensible side sections 5, 7, and a vertically-extensible back section 9 with a horizontally-extensible gusset 11. The belt comprises inelastic side sections 23, 25 secured to the vertical edges of the back section 9, narrow, laterally-extensible, side sections 19, 21, and a vertically-extensible front section 17 shaped at its upper and lower edges as shown. Suspenders 27, 29 are secured to the lower edges of both the sections 17 and 3. Both the outer garment and the belt open at one side. The outer garment is designed to give freedom in bending and like movements, while the belt flattens and supports the diaphragm and buttocks. Specification 138,294, [Class 141], is referred to.
Patent GB-916661-A (GB)
Title: Improvements in display packs
Inventor: WATSON BERNARD LEWIS
IPC: B65D5/52
Filed: 1958-06-03
Abstract: 916,661. Display cartons. SHIRLEY & WARBEY BOX CO. Ltd. June 3, 1959 [June 3, 1958], No. 17742/58. Class 18. A cardboard display box comprises a tubular shell having a cutaway front panel 2, side panels 3 and a back panel 1, and a movable bottom portion 5 integral with a back panel 6, securing panel 4 and a display panel 7 folded back into the shell and having means such as a tongue 10 to fix it in two different positions, i.e. with the bottom 5 horizontal or inclined. In the inclined position of the bottom the tongue 10 engages the upper edge 11 of the rear walls as shown. When the bottom is horizontal the tongue engages an aperture in the back wall. Foldable wings on the panel 6 may rest on the side panels 3.
Patent GB-1344546-A (GB)
Title: Heat-processable photographic materials
IPC: G03C1/498
Filed: 1971-05-28
Abstract: 1344546 Heat-developable photographic material EASTMAN KODAK CO 28 May 1971 [3 June 1970] 17760/71 Heading G2C A heat-developable photographic material comprises a support and contained in a binder in a layer or layers thereof (i) an oxidation-reduction image forming system comprising a lightinsensitive reducible metal compound and an organic reducing agent therefor, (ii) a photosensitive silver compound capable on exposure of forming centres which catalyse the thermally induced oxidation-reduction reaction in (i) to form a visible image and (iii) 0À5-50 g of a polyalkylene oxide or ether derivative thereof per mole of the reducible metal compound. The polyalkylene oxide may be a polyethylene glycol or polyethylene glycol ether having an average molecular weight of 300 - 20,000, e.g. polyethylene glycol oleyl ether. The binder may be polyvinyl butyral. The metal compound may be a silver salt of a fatty acid having more than 12 carbon atoms, e.g. silver behenate which may be used with behenic acid, or may be a reducible gold or mercury compound e.g. gold etecerate, mercuric behenate and auric behenate. The reducing agent may be a silver halide developing agent or a bis-naphthol. The photo-sensitive silver compound may be a silver halide which may be sensitised with a sensitizing dye (see Ex. 3 and 4). A 5-mercaptotetrazole may be present in the material to  further increase its photographic speed. The material may contain a toner which comprises an organic heterocyclic compound containing at least two hetero atoms in the heterocyclic ring of which at least one is N, e.g. phthalimide. The polyalkylene oxide or its ether derivative may increase the photographic speed of the material. Specification 1, 110, 046 is referred to.
Patent GB-1532719-A (GB)
Title: Blood circulatory assist device and control therefor
IPC: A61M60/50
Filed: 1976-04-30
Abstract: 1532719 Reciprocating pumps THERMO ELECTRON CORP 30 April 1976 [9 Jan 1976] 17763/76 Heading F1A A pump for assisting blood circulation comprises a flexible bladder 52 through which blood is pumped via check valves 58, 60 by supplying pneumatic pulses to the chamber defined between bladder 52 and housing 50, the pulses being supplied by a pulse generator 36 via a valve 68, which provides rapid depressurization between pulses, and a diaphragm device 10 for transmitting the pulses and isolating the pump from the generator. Valve 68 comprises a member 74 reciprocable in chamber 72 and used by a pulse to close a vent port 80 and open port 78. At the termination of the pulse, member 74 is moved back to its dotted position by the pressure downstream of port 78 to rapidly vent port 78 to atmosphere via port 80. Pipe 46 is transparent for receiving an indicator rod 48 attached to diaphragm 14, thereby indicating the stroke of bladder 52. In Fig. 3 (not shown), diaphragm stop 42 is axially adjustable to vary the pump output. In Fig. 4 (not shown), diaphragm chamber 30 is vented by a solenoid valve via a dessicant chamber (114) when at its maximum volume, the pressure in chamber 30 is electrically monitored and the position of diaphragm 14 is also electrically monitored.
Patent GB-843273-A (GB)
Title: Improvements in the preparation of cyclic dimethylsiloxanes
IPC: C07F7/20
Filed: 1957-06-05
Abstract: Cyclic dimethylsiloxanes having from 3 to 7 siloxane units in the molecule are prepared from dimethyl-siloxanes which contain trimethyl-and monomethyl-siloxane groups by heating the impure dimethyl-siloxane at a temperature between 80 DEG  and 200 DEG C. in the presence of metallic potassium or an acid or alkaline catalyst and an inert organic liquid which is at least a partial solvent for the impure siloxane.  The cyclic compounds are separated from the mixture by distillation.  The impure siloxanes contain at least 85 parts by weight of dimethylsiloxane groups and up to 15 parts of combined monoand trimethyl siloxane groups.  If the former groups are present in amounts less than 85%, the process must be repeated.  The starting materials may be linear, cyclic or cross-linked dimethyl siloxanes, including elastomers which contain fillers.  Suitable organic liquids are hydrocarbons and ethers, e.g. diphenyl ether, diisopropyl ether, octadecane, deca- and tetra-hydronaphthalene, biphenyl, terphenyl, ditolylethane, and a mixture of hydrogenated derivatives of terphenyl.  The pressure may be varied depending on the boiling point of the liquid.  From 5 to 90 parts by weight of the solvent per 100 parts of total weight of solvent and siloxane are generally used.  Suitable catalysts, in addition to metallic potassium, are sulphuric acid, alkali metal hydroxides, oxides, carbonates and bicarbonates, tetralkylammonium hydroxides and potassium organosilanolates.  Examples are given, and the preparation is also described of an elastomer from a gum derived from the pure cyclic tetramer, ethylsiloxane-coated silica filler and benzoyl peroxide.  Reference has been directed by the Comptroller to Specification 799,917.
Patent GB-1037417-A (GB)
Title: Improvements in and relating to transducers
Inventor: WOLFF JOACHIM
IPC: H04R11/00
Filed: 1962-05-09
Abstract: 1,037,417. Microphones. COSMOCORD Ltd. May 9, 1963 [May 9, 1962], No. 17831/62. Heading H4J. An electro-mechanical transducer particularly for use as a microphone, comprises a pair of opposed polepieces 11, 12 of like polarity, a magnetic armature 20 suitably suspended between these polepieces and a coil 36 surrounding the armature. A pair of arcuate permanent magnets 14, 15 carrying polepieces 10, 12 and 11, 13, respectively, are clamped to a chassis 28 which serves as a support for a peripherally mounted diaphragm 27 attached to the armature. The latter is supported at either end by resilient discs 23, 24. It is stated that movement of the armature causes an increase of reluctance in one of the air gaps between a polepiece and the adjacent face of the armature and a proportionate decrease of reluctance in the other gap whereby a corresponding signal is induced in the coil. The armature consists of an aluminium core 19 carrying an outer sleeve of high permeability, low retentivity magnetic material.
Patent GB-356303-A (GB)
Title: Improvements in or relating to gramophone and like cases, particularly of the hinged-lid type, and boxes, such as needle-boxes, therefor
IPC: G11B3/54
Filed: 1930-06-10
Abstract: 356,303. Gramophone cases. POTTER, W. G. and CHESHIRE, E. L.. 108, Tolling- ton Park, Finsbury Park, London. June 10, 1930, No. 17847. [Class 40 (ii).] A gramophone oase is provided with a box, e.g. a needle box, which is mounted in or at a side wall of the case and has its body or cover movable in relation thereto to allow of access to the needles &c., and is fastened in the closed position by a latching device, e.g. a key-operated lock, that is mounted upon the case adjacent the movable part of the box or upon the movable part of the box and which locks the lid of the case and the box in the closed position. As shown, the needle box 13 is pivoted by a horizontal pin 22 at the bottom of an aperture 15 in a mount 14 fixed over an opening in the side of the case so that the box can be swung into and out of the case 10. The sides 24 of the box are segmental in shape and in the closed position the opening 25 of the box is covered by a curved plate 26 fixed to the rear of the mount 14. A spring is preferably used to swing the box to the open position and a keyoperated lock 32 is mounted in front of the mount 14 above the box ; a spring- controlled hasp 30 carried by the lid 11 of the case engages over a boss 38 on the front of the box 13 to hold the latter in the closed position, and the lid and the box are both locked in the closed position by latches 34, 36 carried by the lid 11 and the lock 32 respectively, the latches engaging the lock and boss 38 and being locked thereto when the lock 32 is actuated by its key. In a modification the body of the box is fixed inside the case and its hinged cover carries the key-operated lock which engages the hasp carried by the lid of the case.
Patent GB-465233-A (GB)
Title: A process for the manufacture of alcohols
IPC: C07C29/06
Filed: 1936-06-26
Abstract: In the manufacture of alcohols having more than five carbon atoms in the molecule, by absorption of alkenes in sulphuric acid and hydrolysis, the crude alcohols from the hydrolysis are treated with strong alkali lye at elevated temperatures and/or by a flash distillation prior to fractional distillation.  In examples: (1) crude alcohols from cracked paraffin wax are neutralized with 1 per cent NaHCO3 solution, and then are stirred with 20 per cent caustic soda lye at 100 DEG  C., for one hour, and finally distilled under 20 mm. pressure; (2) crude alcohols are neutralized at room temperature with 2 per cent caustic soda solution, and the alcohols flash distilled at 20 mm. pressure prior to fractional distillation.
Patent GB-1465916-A (GB)
Title: Preparation of acrylic acid and methacrylic acid
IPC: C07C67/00
Filed: 1974-04-24
Abstract: 1465916 Oxidation catalysts STANDARD OIL CO 24 April 1974 [30 April 1973] 17877/ 74 Heading B1E [Also in Division C2] An oxidation catalyst composition comprises (1) a catalyst where A is an alkali metal, alkaline earth metal, Zn, Cd, T1, In, Nb, Ta, a rare earth or mixture thereof; B is Ni, Co, Mn or a mixture thereof; D is P, As, Sb, B, W, Cr, V a mixture thereof, and X is Bi or a mixture of Bi and Te, and a and c are numbers 0-10, b is 0 to 20, is greater than 0 and less than 10, d is 0 to 5 and x is the number of oxygen atoms to satisfy the valency of the elements present and (2) a catalyst in which E is Sn, Cu, Ge, Sb, Bi, Te, Mn, Fe, Mg, Zn, Ni or mixture thereof; G is W or Cr or a mixture thereof; J is V, P, Sb, Co or a mixture therof; g and h are 0 to 20, i is greater than 0 and less than 20; and x is the number of oxygen to satisfy valency of elements present, and is used for the preparation of acrylic or methacrylic acid by reaction of propylene or isobutylene with molecular oxygen (see Division C2). The reaction is in a fluid-bed reactor and the catalyst particle size is preferably less than 300 microns and the bed volume during operation is 5-50% greater than the unexpanded bed. The catalyst may be a mixture of separate particles of the two types in an open-bed reactor or a reactor with sieve trays. The catalyst may be on a silica, alumina, titania, zirconia, or calcium phosphate supports. The catalysts are prepared by conventional methods with calcination and examples describe the preparation of K 0À1 Ni 2À5  Co 4À5 Fe 3 Bi 1 P 0À5 Mo 12 O x  with SiO 2  and W 1À2 V 3  Mo 12 O x  and SiO 2 , and a physical mixture of the two catalyst is used to prepare acrylic or methacrylic acid. Other examples of the catalyst compositions are listed.
Patent GB-161877-A (GB)
Title: Improvements in transportable containers for water and other liquids
IPC: B65D77/06
Filed: 1920-06-30
Abstract: 161,877. Gow, H. F. S. Butt-. June 30, 1920. Tanks.-A collapsable container for water &c. comprises a base portion 10 and a body portion 1 each built up from metal or wood slats strung together on wires &c., a flexible bag 15 provided with an outlet tube 18 being secured inside the cylindrical part 1. The parts 1, 10 are lashed together by ropes 14, and the body portion 1 may be opened out flat on undoing fastenings 6 - - 9. Rings 29 are provided for securing the container in a cart &c. The upper end of the bag 15 has a funnel shaped filling-device adapted, when out of use, to be covered by a flap 27. The tube 18 has a rubber reinforcement 20, and its end carries a funnel 23 and an attachment hook 22. The top of the bag 15 is supported by a loop 31 engaging a bar 30 which may be used as a testrod for measuring the quantity of liquid in the container.
Patent GB-1315598-A (GB)
Title: Foldable packaging container
IPC: B65D77/06
Filed: 1971-05-28
Abstract: 1315598 Lined cartons ELBATAINER KUNSTSTOFF - UND VERPACKUNGS GmbH & CO 28 May 1971 [22 June 1970] 17886/71 Heading B8P A carton for liquid, pasty or powdery material has a paper, plastics or metal foil liner surrounded by a stiffening carton 22 and inserted in an outer cardboard carton 10. The liner has a screwed filling cap 30, and slits 31 in the carton 22 facilitate opening out of the flattened liner. Creases 29 in the centre of two walls of the carton 22 enable the carton to be folded flat about those creases and so protect the corners 23 formed when the liner is filled. When used for granular or powdery material the cap 30 is dispensed with and the liner top is initially left open and is closed after filling. (For Figure see next column.)
Patent GB-596011-A (GB)
Title: Television system
IPC: H04N7/084
Filed: 1945-07-13
Abstract: 596,011. Multiplex pulse signalling. STANDARD TELEPHONES & CABLES, Ltd. July 13, 1945, No. 17955. Convention date, July 17, 1944. [Class 40 (v)] Television signals include a pair of pulses superimposed on the picture blanking signal one being a synchronizing pulse and the other a time-modulated pulse carrying a sound channel. In one embodiment, Fig. 1, a base wave oscillator 1 of twice the horizontal synchronizing frequency feeds a cusper time modulator 13 through a phase shifter 12. The source 14 of audio signals also feeds the modulator. 13 whose output pulses are shaped in amplifier 28 and one in four of which are selected by the gated amplifier 41 and fed to mixer 44. The conventional vertical synchronizing pulse producer 3 is controlled by oscillator 1, and feeds frame retrace blanking pulses over lead 3b to mixer 44, and synchronizing pulses over lead 3a to mixer 44 and to the picture signal source 43, whose output is fed to the mixer 44. A multivibrator frequency divider 4 fed from oscillator 1 supplies horizontal synchronizing pulses over lead 8a to the picture signal source 43 and mixer 44 after shaping in circuit 8 while horizontal blanking pulses from shaper 10 are fed to the mixer 44 and as gating pulses to amplifier 41. The output from mixer 44 modulates the radio transmitter 45. The wave forms at various points of the system, Fig. 2, are the base wave a from source 1, the output b of multivibrator 4, the horizontal synchronizing pulses c from shaper 8, the horizontal blanking pulses d from shaper 10, the output audio pulses g from the cusper modulator 13, and the same h after gating in amplifier 41. The composite signal output from mixer 44, curve i, shows the fixed horizontal synchronizing pulses 9 and blanking pulses 11, the time modulated audio pulses 32 and the lines of picture signals 47. In a modification, Fig. 5 (not shown), the time modulator for the audio pulses is operated from the horizontal synchronizing pulses. In a further embodiment, Fig. 6, the base wave from oscillator 1 is shifted in phase in circuit 51 and feeds the horizontal blanking pulse producer 52 which comprises a multivibrator 53 and clipper 54. A second multivibrator 56 synchronized by oscillator 1 and controlled by audio source 14 produces pulses 57, Fig. 7o, the leading edge of which is fixed and the trailing edge, 58, of which is modulated in time by the audio signal. Differentiation of these pulses in circuit 59 produces the synchronizing pulses 60 and audio pulses 61, Fig. 7p, which are clipped at levels 62, 64 respectively by shaper circuits 63, 65 respectively and fed to mixer 44. The horizontal synchronizing pulses, equalizer pulses and vertical synchronizing pulses are of different duration so that they can be separated by width discriminator circuits.