baber/WOPTO huggingface dataset:
Patent GB-782799-A (GB)
Title: Synthetic rubber composition
IPC: C08L9/02
Filed: 1956-02-03
Abstract: A centrifugal separator comprises a conically-shaped hollow member moulded from a composition consisting of 100 parts of a butadiene-acrylonitrile elastomer, 55 to 65 parts of a cardanol-modified phenol-formaldehyde resin, 55 to 65 parts of an abrasion-resistant carbon black, a curing agent and a plasticizer.
Patent GB-369331-A (GB)
Title: Improvements in firearms in which the barrel moves forward on discharge
IPC: F41A9/29
Filed: 1931-02-04
Abstract: 369,331. Automatic guns. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST V. BRNE and STALLER, K., 7, U. Lazaretu, Briinn, Czecho-Slovakia. Feb. 4, 1931, No. 3607. [Class 92 (ii).] Automatic guns of the kind in which the barrel 3 moves forwards on discharge and in which the cartridges 8 are fed across the gun on members x which may be carried by a strip, belt, or disc, have the members x in the form of separate breech-blocks for each cartridge. In the form shown in Fig. 5, the breech-blocks x<1>, x2, &c. are each in two parts adapted to grip the base of a cartridge when linked together by pins 20 to form a chain. The links are guided through the gun by parts 45, 46 and form a rigid rack with teeth 50 to facilitate feeding the cartridges through the gun. The breech-blocks each have a central hole 18 to admit the firing pin 19.
Patent GB-1156020-A (GB)
Title: Plasticised Ethylene-Acrylic Acid and Ethylenemethacrylic Acid Copolymers
Inventor: WARTMAN LLOYD HENRY
IPC: C09J123/08
Filed: 1966-10-21
Abstract: 1,156,020. Interlayers for safety glass. UNION CARBIDE CORP. 21 Oct., 1966 [22 Oct., 1965], No. 3635/69. Divided out of 1,154,338. Addition to 1,089,908. Heading B5N. [Also in Division C3] An interlayer for safety glass is formed from a composition comprising an ethylene-methacrylic acid copolymer or the metal ion neutralized copolymer of ethylene and acrylic acid or methacrylic acid, and as plasticizer therefor, an adduct of an amine with an alkylene oxide. Exemplified plasticizers are the reaction products of N-hexylamine, tri-ethanolamine, diethylene triamine and ethylene diamine with propylene oxide.
Patent GB-491651-A (GB)
Title: Improvements in and relating to ventilating devices
IPC: F24F7/007
Filed: 1937-02-06
Abstract: 491,651. Apparatus for ventilating enclosures. YOUNGER, A.R. Feb. 6, 1937, No. 3636. [Class 137] In a ventilating-apparatus of the kind such as is described in Specification 388,145, and including an air extracting fan such as 12 and an intake fan such as 14, a two-part casing 2, 3 is provided and two independent chambers 10, 11 are formed in one part 2, the chamber 10 housing the extracting fan and the chamber 11 the intake fan. The casing 3 is formed with outlet louvres 18 and inlet louvres 19 separated by a deflector 22, the outgoing air being drawn by fan 12 through a grating 15, and delivered through an exhaust duct 16 to an outlet duct 17 and the louvres 18. The incoming air passes through louvres 19 and inlet duct 20, and is forced by fan 14 past heaters 32 to a discharge conduit 21. The two parts 2, 3 of the casing are secured in an aperture 27 in a panel 1, or window, being held together by screw bolts 29, the portions 24, 25 of the casing 2 being held together by nuts and bolts 26. Thus the portion 25 may be removed as a unit with the fans and motor 4. A fuse 35 cuts off the current should the fan fail and allow overheating of the resistance heater 32. The fresh air duct may be fitted with filtering, deodorizing, disinfecting, or perfuming means.
Patent GB-388385-A (GB)
Title: Improved method for mechanically obtaining sound records of constant density to light
IPC: G11B11/00
Filed: 1931-08-17
Abstract: 388,385. Recording optical soundrecords. NUBLAT, R. L. A., 17, Boulevard du Grand-ChÛne, Le Parc St-Maur, Seine, and SOC. D'ETUDES POUR L'EXPLOITATION DES BREVETS NUBLAT, 56, Rue de Paradis, Paris, both in France. Aug. 17, 1931, No. 3769/33. Divided on 388,373. [Class 40 (ii).] Optical sound-records are mechanically recorded by means of a vibrating stylus which cuts a sinuous groove of constant width in an opaque coating on a transparent support, while a fixed stylus cuts a rectilinear groove which overlaps one side of the sinuous groove. A cutting stylus 12 is vibrated transversely of a moving film 1 under the influence of sound currents fed to an electromagnetic apparatus 14 to form a sinuous groove 3, Fig. 3, of constant width. The apparatus 14 is fixed to a bracket 16 by means of a screw 17, Fig. 1, the knurled head 18 of which permits the stylus 12 to be adjusted relatively to the film 1. A fixed cutting stylus 21, secured in a socket 23 attached to the apparatus 14, cuts a groove 20 having rectilinear edges, one edge of which overlaps one edge of the groove 3. The resultant groove forms a variable-width record which can be reproduced by optical means. If desired, the rectilinear groove may be cut either before or subsequent to the formation of the sinuous groove.
Patent GB-585511-A (GB)
Title: Template scale, particularly for use in the preparation of isometric drawings
IPC: B43L13/14
Filed: 1945-02-16
Abstract: 585,511. Drawing-instruments. LEETE, J. F. Feb. 16, 1945, No. 3910. [Class 97 (iii)] A template for use in preparing isometric drawings has at least two edges, e.g. 12, 15, with isometric scale markings 16, 17, and making angles of 30 degrees and 90 degrees respectively, with a base edge. Specification 574,855 is referred to.
Patent GB-1372757-A (GB)
Title: Prefill valves for moulding machines
IPC: B29C45/67
Filed: 1972-01-27
Abstract: 1372757 Mould closing devices US INDUSTRIES Inc 27 Jan 1972 [2 Feb 1971] 3925/72 Heading B5A The invention relates to a moulding machine having main and pilot hydraulic circuits, a main ram 6 in a main cylinder 2 for opening and closing a mould (not shown), a jack ram cavity 10 in the main ram, a stationary jack ram 11 extending into the cavity 10 and mounted at the other end on a support 3, an hydraulic fluid reservoir which is in communication with the main ram cavity 22 when the main ram is retracted, and a bore 14 extending through the jack ram through which main hydraulic pressure can act to move the main ram to the advanced position. According to the invention the machine comprises a prefill valve assembly including a valve cylinder 4 extending between the main cylinder 2 and the jack ram support 3, a poppet 20 reciprocable in the cylinder 4 between positions opening and closing connection between the fluid reservoir and the main ram cavity 22, means for urging the poppet towards open position and means for directing main hydraulic circuit pressure against an end of the poppet for closing it. The use of main hydraulic fluid pressure produces very rapid closing of the poppet, thereby reducing the total cycle time of the machine. The invention is applied to an injection moulding machine, one mould half (not shown) being mounted on a platen 7 secured to the main ram 2. The hydraulic system includes a profile control valve 40 and a ram control valve 41. The valves 40, 41 include pilot valves 42, 44 and main valves 43, 45 respectively. Operation.-The platen 7 and main ram 6 are advanced rapidly by main hydraulic pressure supplied through lines 69, 80, 77, 75 and bores 13, 14 into the jack ram cavity 10. When the ram 6 has reached its advanced position fluid pressure builds up inside the jack ram and is transmitted through a port 33 to a seat 30 on the poppet 20 which is thereby moved to the right to cut off the connection between cavity 22 and the reservoir. Main pressure is then supplied through bore 13, port 33 and an annular space 38 between poppet 20 and support 3 to the cavity 22 so as to apply full pressure to the main ram 6.
Patent GB-976172-A (GB)
Title: Improvements in or relating to sampling augers
Inventor: SALUSBURG-WILLIAMS JOHN BERNAR
IPC: G01N1/14
Filed: 1963-01-31
Abstract: 976,172 Sampling granular material. CONSOLIDATED PNEUMATIC TOOL CO. Ltd. Jan. 28, 1964 [Jan. 31, 1963], No. 3992/63. Heading B8N. A sampling apparatus for extracting samples from a bulk of granular material, such as small coal, comprises an auger 10 rotatable within a sleeve 13 and having agitating blades 27 and helical lands such that when the auger is rotated, such as by an electric motor, material is disturbed by the blades and propelled by the lands up the sleeve where it is delivered through an aperture 24. The auger 10 is connected to an adapter 19 which is rotatable in a bush 16 secured to the sleeve by a screw 18, the auger being prevented from axial movement by means of a collar 12 and flange 23. The end of the sleeve may be formed as a replaceable head 26 of hard material. Several sampling devices may be mounted side-by-side on a frame and lowered into a truck of coal.
Patent GB-836193-A (GB)
Title: Decorating articles by a method involving photography
Inventor: REICH TIBOR
IPC: B44F3/00
Filed: 1956-02-09
Abstract: 836,193. Decorating by photography. TIBOR REICH DESIGNS Ltd. Jan. 8, 1957 [Feb. 9, 1956], No. 4029/56. Class 98(2) [Also in Group XV] Positive and negative prints of the same photograph are arranged in side-by-side relationship to present a design and the latter is transferred to, or incorporated in, an article to decorate it. Parts of the prints may be out of focus, and adjacent prints may be mirror images or differently oriented relative to one another. In a particular method the positive and negative prints are from a portion of a photograph of a heap of straw, part out of focus, and a repeated pattern is made using silk screen procedure, such pattern constituting the design.
Patent GB-657449-A (GB)
Title: Improvements in and relating to apparatus for high voltage measurement
IPC: G01R15/14
Filed: 1949-02-14
Abstract: 657,449. Voltage measurements. CZECHOSLOVAK METAL & ENGINEERING WORKS, NATIONAL CORPORATION, and SVOBODA, V. Feb. 14, 1949, No. 4042. Convention date, Feb. 21, 1948. [Class 37] The high voltage in a supply line is fed to the primary 3 of a power transformer 1, a winding 5 on the transformer supplying a reduced voltage for measurement and being in series with a resistance 6 and an inductance 7 which are fed with a voltage obtained from a current transformer 10 on the high voltage supply line. The potential developed across resistance 6 and inductance 7 by the current transformer 10 compensates for the errors due to stray flux and to the voltage drop in the winding 3.
Patent GB-1026273-A (GB)
Title: Sealing metallic strip to an optically transparent article
IPC: G02B7/02
Filed: 1963-01-31
Abstract: To seal a metal strip to an optically transparent article, particularly an aluminium strip to a fused silica lens, the strip 12 or 32 is laid against the surface of the lens 10 or 30, a protective strip 16 of titanium is laid over the strip 12 or 32, and the tip 20 of an ultrasonic seam welder is pressed towards the surface to <PICT:1026273/C1/1> <PICT:1026273/C1/2> force the strip 12 against the surface and moved along the protective strip 16 while the pressure is maintained.  The protective strip 16 of titanium may be sandblasted and oiled on its lower surface 18 to avoid welding to the strip 12.  The strip 12 is shown welded to the edge of the face of the lens 10, but the strip 32 can be similarly welded to the peripheral edge of the lens 30.  In each case, the strip can then be welded to a metal holder or to a different metal strip such as nickel steel.
Patent GB-1099035-A (GB)
Title: Tuner for radio receivers
IPC: H03J3/00
Filed: 1965-01-29
Abstract: 1,099,035. Diode-capacitance tuning; bandpass filters. STANDARD KOLLSMAN INDUSTRIES Inc. Jan. 29, 1965 [Feb. 12, 1964], No. 4065/65. Headings H3Q, H3T and H3U. A tuner for a radio receiver comprises three resonant circuits, each having an inductance and a voltage-variable diode capacitor, and switching means including further voltagecontrollable diodes for switching each circuit between predetermined frequency ranges. Fig. 8 shows a tuner having R.F. amplifier 620, local oscillator 685 and mixer 655, tuned respectively by inductances 624, 696 and 644 and associated diode -capacitors 610, 700 and 646. Wave-band switching is effected by bringing in extra reactive components 624, 648 and 715 through additional diode-capacitors 622, 650 and 716, the latter being conductive or not depending on the potential of line 630 which is connectible to either polarity of a D.C. source by switch 632. Tuning is effected by varying the potential on line 615 which is controlled by potentiometers 726 and 728, one of these being effective for each polarity of the line 630. The local oscillator diode-capacitor is duplicated (700, 702), one being in use for each polarity of the line 630. The coupling from the amplifier to the mixer may include a band-pass filter with two resonant circuits, both of which are tuned by variable diode-capacitances (Fig. 2, not shown). The circuits are given separately with some extra detail in Figs. 6 and 7 (not shown). Fig. 5 shows a switchable and tunable band-pass filter which may precede the R.F. amplifier stage. An input transformer has its secondary tuned by diode-capacitance 210 controlled by D.C. from a potentiometer 217. This secondary forms the first shunt arm of a #-network whose second shunt arm is a capaciance 216 and whose series arm comprises two inductors 212, 214 shielded to prevent mutual inductance with one another. In one position of switch 227 a diode-capacitance 220 is reverse biased and tunes the inductor 220. For the other waveband the diode 220 is forward biased to short the inductor 220 and leave only inductor 214 in the series arm. In Fig. 4 (not shown), an alternative coupling circuit comprises two transformers connected in series on the primary and secondary sides. Each secondary is shunted by a diode-capacitance of which one is reverse biased to act as a capacitor and the other is forward biased to short-circuit the unwanted secondary winding. Tuning and waveband switching is effected by varying the magnitude and polarity respectively of the bias voltage on the diode-capacitances.
Patent GB-547572-A (GB)
Title: Improvements in machines for rectifying and polishing dies for wire drawing
IPC: B24B5/48
Filed: 1941-03-27
Abstract: 547,572. Polishing wire-drawing dies. BRITISH INSULATED CABLES, Ltd., CLEMENTS, W. J., and JONES, H. E. March 27, 1941, No. 4097. [Class 60] A machine for polishing wire-drawing dies, comprising a rotated die-holder 2, Fig. 6, clamps 12, 13 holding the ends of a pol ishing wire 11 passing through the die 1 and having a diameter initially greater than that of the bore of the die 1, and means, such as a cam 18, frame 14, and screw 17, rotated by a ratchet 20 and fixed pawl 21, for reciprocating and progressively feeding the wire, e.g. as described in Specification 348,699, is provided with a spring or like take-up device on the clamp 12 at the approach side of the die. This clamp slides on bars 23, Fig. 3, and is supported by springs 24 or it may be adjustably fixed to bars 35 of a frame 36 mounted to slide vertically on the frame 14 and supported by a wire 39 and spring 44. In a modification the clamp 12 is omitted and the wire 11 passes over the wheels 40, 43 and is attached to the spring 44 directly. The Provisional Specification describes the same apparatus used with a wire smaller in diameter than the bore of the die.
Patent GB-731818-A (GB)
Title: Improvements in or relating to liquid supply systems
Inventor: MATTHEWS JAMES WILLIAM
IPC: F16K21/18
Filed: 1952-02-15
Abstract: 731,818. Electromagnetically-actuated valves. VARLEY PUMPS & ENGINEERING, Ltd. Feb. 6, 1953 [Feb. 15, 1952], No. 4112/52. Class 135. A rotary cylindrical valve member a is turned by a lever p in a clockwise direction against a compression spring v to the position shown in which, through ports c, f, it connects a liquid pump outlet passage e with a delivery conduit g, the parts being held against the spring by a detent h which is released by a solenoid 2 to cause the valve to connect the passage e with a by-pass x upon rise of pressure at the delivery end of the conduit g due either to the filling of a tank or to the closure of a delivery valve. A pressure switch at the delivery end of the conduit g controls the solenoid. According to the Provisional Specification the valve is of the sliding gate type and the detent comprises balls urged radially inwardly by a slidable sleeve to hold in position a spring-pressed valve rod and released upon axial movement of the sleeve.
Patent GB-607801-A (GB)
Title: Improvements in collapsible pictorial show cards
IPC: B42D15/04
Filed: 1946-02-12
Abstract: 607,801. Showcards. EMETT, F. R. Feb. 12, 1946, No. 4266. [Class 3(ii)] [Also in Group XV] In a collapsable pictorial showcard of one-piece foldedcard formation for use as a calendar, greeting cards or for advertising purposes, Fig. 3, the folds are made along two parallel transverse lines a', a<2> and part of the intermediate section a<5> of the card is of a suspended silhouette character, one end section a<3> of the card forming an inclined rear support and the other a' an inclined strut with slot-and-tongue connection a<6>, a' with the silhouette a<5>. The inclined strut is also connected to the rear support a<3> by a tongue-and-slot connection at a<8>. The device may be folded flat. The silhouette may represent an aeroplane, ship, vehicle &c. and siutable designs may be printed on the interior faces of the support a<3> and the strut a<4>.
Patent GB-593491-A (GB)
Title: Improvements in time base circuit arrangements
IPC: H03K4/12
Filed: 1945-02-21
Abstract: 593,491. Saw-tooth waveform generators. WILLIAMS, F. C. Feb. 21, 1945, No. 4418. [Class 40 (v)] A time base circuit for generating a sawtooth waveform of approximately hyperbolic form comprises a network having a capacitor in series with one or more variable resistors, each effectively shunted by a capacitor. The Figure shows an application to an airborne plan position indicator (PPI) in which the normal dead area corresponding to altitude of flight is eliminated, and which requires a time base voltage varying hyperbolically with altitude to make the display conform to true ground ranges. Two component voltages in quadrature are induced in the respective stator windings of rotary transformer RT by a linear saw-tooth voltage applied to its rotor winding which is coupled to the aerial rotation gear and these voltages are fed through separate time base networks and paraphase amplifiers to produce the normal radial time base on the PPI. The component voltage in transformer T3 is differentiated by network RC3, RC1 to produce a constant voltage across network RC1 and the resistor in RC3. Network RC1 is kept discharged by clamping circuits DD1, DD2 until they are rendered inoperative by the first ground echoes received by the system, when network RC1 charges to produce a combination of linear and exponential curves which can be made to approximate to the required hyperbolic function by adjusting the resistors in accordance with the height flown. The resultant voltage is applied through paraphase amplifier V1, V3 to the vertical deflection plates of the PPI. The other component voltage is fed through a complementary circuit to the horizontal deflection plates of the PPI. Specification 593,510 is referred to.
Patent GB-1028957-A (GB)
Title: The purification of polymers and the resulting polymers
Inventor: MCKAY RAYMOND
IPC: C08F6/02
Filed: 1965-02-02
Abstract: The process for purifying a polymer as claimed in Claim 1 of Specification 870,326 is modified, subsequent to treatment of the polymer with dry HCl in the optional presence of organic solvents, by washing the polymer with aqueous wash liquor in one or more washing operations and thereafter adding to the washed polymer an amount of neutralizing agent, e.g. sodium carbonate, which does not exceed or substantially exceed the stoichiometric amount required to neutralize to pH7 the hydrogen ion content of the washed polymer.
Patent GB-548077-A (GB)
Title: Improvements relating to water filtering apparatus
IPC: B01D35/26
Filed: 1941-04-04
Abstract: 548,077. Tank vehicles. BROWNLOW, R. S. April 4, 1941, No. 4549. [Class 108 (i)] [Also in Group I] A water cart, trailer or like vehicle is provided with a storage tank T and filters F, F<SP>1</SP> associated with semi-rotary hand pumps P, P<SP>1</SP> fitted with threeway suction and delivery valves. B, B<SP>1</SP> Fig. 4, and C, C<SP>1</SP>, Fig. 6, arranged so that, in one position, the pumps can take in water through flexible pipes 1, 1a, and force it through pipes 6, 6a, the filters and pipes 10, 10a, into the tank and in another position, can draw clean water from the tank through pipes 5, 5a, and pump it via pipes 7, 7a, and branches 8, 8a, through the filters in the reverse direction for back flushing purposes. Stop valves A, A<SP>1</SP> and three-way valves D, D<SP>1</SP> are opened during filtering and stop valves G, G<SP>1</SP>, Fig. 3, (not shown) and flush taps E, E<SP>1</SP> during backflushing. Three-way valves H, H<SP>1</SP>, Fig. 11, are adapted to connect or disconnect the pipes 6, 6a and 7, 7a or connect the pipes to a drain 12. The valves P, P<SP>1</SP> are adapted also to connect the outlet from the filter to a waste pipes 9, 9a. The inlet pipes, 1, 1a are fitted with a strainer 2 and an adjustable cork float 3. The filters F, F<SP>1</SP> are preferably of the edge filtering type comprising a helically-wound wire or a pile of discs, such as described in Specification 535,832, [Group I], used with a filtering paste, such as kieselguher in the form of a thick cream, introduced through funnels K, Kl. The water may be sterilised by passing through a solid re-agent r in tanks t with perforated bottoms or by allowing a liquid re-agent to drip continuously into the tank T at the points when the water is delivered into the tank.
Patent GB-955116-A (GB)
Title: Improvements in and relating to polymers
IPC: D01F6/20
Filed: 1961-02-08
Abstract: 955,116. Polystyrene fibres. UNION CARBIDE CORPORATION. Feb. 8, 1961 [Feb. 9, 1960], No. 4634/61. Addition to 940,621. Heading B5B. Crystalline isotactic polystreyene yarn is produced by wet spinning an organic solvent solution of 15-35% amorphous isotactic polystyrene having a melt index of 0.01-5 decigrams per minute at 250 C., the solution having a viscosity of 1000-20,000 centipoises at 60 C. and a temperature of 50-100 C., into a coagulating bath to produce filaments containing 5-20% residual organic solvent, stretching the coagulated filaments up to 5 times at 80- 100 C., removing the residual organic solvent and absorbed coagulant, and annealing. The amorphous form may be produced by heating the crystalline form at 300-450  C. followed by quenching in cold water. The organic solvent may be dimethyl formamide, benzene, toluene, o-oxylene, or tetrahydrofuran. The coagulant may be water or dipropylene glycol. Solvent and coagulant may be removed by washing in water at 65-100 C., followed by drying in hot air, or by drying in hot air alone. Annealing may be effected by heating at 100- 200 C. for 5-50 seconds, while permitting a shrinkage of up to 20%. Examples are given.
Patent GB-372419-A (GB)
Title: Improvements in or relating to grinding or abrading machines
IPC: B24B41/06
Filed: 1931-02-14
Abstract: 372,419. Grinding. OSBORN & CO., Ltd., S., Clyde Steel Works, Sheffield, and WORSLEY, W., 328, Audenshaw Road, Audenshaw, Manchester. Feb. 14, 1931, No. 4658. [Class 60.] Tables, slides, and carriages; workholders.-The work table or work-holder of a grinding- machine is resiliently supported by means of two pedestals b slidable in housings a, cach pedestal being guided on two adjustable bolts c and supported by springs d. The table or work-holder is reciprocatably supported on a spindle carried in bearings e in the pedestals.