baber/WOPTO huggingface dataset:
Patent GB-722317-A (GB)
Title: Manufacture of stabilized polyvinyl acetals and plastic compositions made therewith
IPC: C08K5/45
Filed: 1951-05-15
Abstract: Polyvinyl acetals (including ketals) are stabilized by incorporating therein thianthrene or benzthiazole, or their derivatives, before, during, or after acetalization.  Polyvinyl acetals specified are those derived from polyvinyl alcohol and aldehydes such as formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, and isobutyraldehyde, and ketones.  Stabilizers specified in addition to benzthiazole and thianthrene are 2-mercaptobenzthiazole, dibenzthiazolyl - 2,21 - disulphide, 2,6 - dimethyl thianthrene and 2,3,6,7-tetramethyl thianthrene, and the corresponding ethyl derivatives of thianthrene.  The stabilizers are preferably used in amounts of from 0.5 to 10 per cent of the resin.  The products may be used for making safety-glass foils.
Patent GB-1177375-A (GB)
Title: Improvements in power-assisted change-speed mechanisms
IPC: F16H61/30
Filed: 1967-03-10
Abstract: 1,177,375. Change - speed control. SOC. ANON. DE VEHICULES INDUSTRIELS ET D'EQUIPEMENTS MECANIQUES SAVIEM. 10 March, 1967 [24 March. 1966], No. 11487/67. Heading F2D. . A power-assisted gear change mechanism comprises a slidable and rotatable shaft 1 for gear selection and establishment, the rotation being assisted by a pneumatic actuator 22 of which the double-acting piston 21 is connected by a rod 19 to a crank arm 17 splined on the shaft 1 and formed with cam lobes engaged between spring-loaded plungers 15, 16. The ball joint 5 of the gear change lever 4 is mounted between plungers 44, 46, transverse movement of the lever causing one or other of the plungers to rotate an associated pivot 40 or 41 and lever (36 or 37), Fig. 4 (not shown), to operate the plungers 32, 33 of a servo-control valve 30 including a central loading spring 54 and regulating the supply of compressed air from an inlet port 31a to the actuator cylinder ports 28a, 29a. The spring 54 ensures that servo assistance occurs when the manual effort applied to the gear lever 4 exceeds a predetermined value. The shaft 1 is loaded axially by a pair of concentric springs (10, 11), Fig. 1 (not shown).
Patent GB-114922-A (GB)
IPC: B30B15/02
Abstract: 114,922. Taylor, Tunnicliff, & Co., and Cooper, P. May 17, 1917. Rotary-mould-table machines; moulds. - In presses bearing sliding grooving or recessing members 1, these are operated by means of a rotary member furnished with grooves 10, 1.1 engaging blocks 9 pivoted at 8 to the members 1. The grooves may be circular, Fig. 5, straight, Fig. 9, or curved. The member 6 may be provided with ribs instead of grooves. The mould is constituted by a central aperture in the member 6; or as shown in Fig. 10, a non-rotary sleeve 33, secured by screws 34, may be provided. To permit escape of surplus material, the members 1 are provided with edge grooves 7, Fig. 7. Fig. 1 shows a rotary table machine 21 having means for automatically operating the members 6 which are each furnished with arms 19, 20, of which the arm 19 engages with a stationary arm 30 to open the sliding members 1, whilst the arm 20 engages firstly with a fixed arm 24 partly to close the members and finally with a spring arm 26 to effect complete closure just prior to pressing. The moulded articles are ejected by bottom plungers 5, Fig. 3, engaging an incline 31, the plungers being returned by springs 32. According to Provisional Specification 7063/17, the members 1 are drilled or slotted with longitudinal holes or passages from end to end for the escape of surplus material.
Patent GB-945480-A (GB)
Title: Radiant energy scanning devices
Inventor: WISNIEFF ROBERT EDWARD
IPC: G01J1/04
Filed: 1960-04-01
Abstract: 945,480. Aerials; wave-energy position finding. UNITED AIRCRAFT CORPORATION. April 1, 1960, No. 11507/60. Headings H4A and H4D. An aerial comprises a plurality of reflector systems mounted in a rotor such that each system successively directs radiation on to a primary element mounted within the rotor to produce azimuth scan. The rotor may be oscillated to give elevation scan. The rotor 10 is carried in a yoke 12 and comprises three reflector systems. Radiation received by a reflector 14 is directed via reflector 16 through an aperture 20 in the reflector 10 and towards a primary aerial 26. The optical axes of the reflector systems meet at the aerial 26 and their focal planes intersect on the axis of rotation of the rotor 10. The aerial is stationary relative to the yoke and the rotor is rotated by a motor connected at 30. A housing 22 having a window 24 surrounds the aerial so that it receives radiation over an angle of 90 degrees. Each reflecting system in turn directs radiation on to the aerial so that a uniform scan in azimuth is achieved. Elevation scanning is performed by oscillating the yoke 12 by a motor 36 which drives rack 52 and pinion 50 gearing. Elevation information is obtained from a transmitter 70. The invention, with a suitable primary element, may be used with infra-red and visible radiations.
Patent GB-527653-A (GB)
Title: Flexible pipe-coupling
IPC: F16L27/12
Filed: 1939-04-17
Abstract: 527,653. Pipe couplings. GRUNTA, M. April 17, 1939, No. 11641. Convention date, April 16, 1938. [Class 99 (i)] In the yielding pipe coupling shown in Fig. 1 packing rings 1 of circular cross-section are housed in arcuate recesses 2 provided in flanges 3. Alternatively, the recesses may be located in the pipe ends.
Patent GB-1459166-A (GB)
Title: Preparation of texturised polyester yarn
IPC: D02G1/12
Filed: 1975-03-20
Abstract: 1459166 Texturising yarns RHONE-POULENC-TEXTILE 20 March 1975 [22 March 1974] 11695/75 Headings D1F and D1W In a texturising process, untexturised, drawn, multifilament polyester yarn is passed through an injector to be subjected therein to, and opened by, a stream of heated fluid at a temperature of 95-220C, thence through a stacking nozzle to emerge therefrom as a tightly folded "stack" which is subjected to a mechanical pressure of 20-200 kg/cm<SP>2</SP> and, whilst maintained under such pressure or subsequently, heated at a temperature up to 220C e.g. 95-220C for 1-150 minutes. In the final yarn having bulky, extensible, stable crimp configurations, the individual filaments may comprise alternate crimped and "flat" zones of random lengths and random transverse deformations. As shown, yarn 1 from a feed device (not shown) enters an injector 2 supplied with hot fluid 3, thence through a nozzle 4 having orifices 5 through which a part of the fluid escapes and the remaining fluid forms yarn into, and advances, a stack 6 which is deposited to fill a receptacle 7. The package of yarn (or tow) is compacted under a press platen 8 and heated in an oven, Fig. 3 (not shown). Continuous yarn etc, unwound from the packet may be cut into staple fibres.
Patent GB-1190097-A (GB)
Title: Enzymatic Compositions for Deodorizing Fats, and Soap Made Therefrom
IPC: C11B3/00
Filed: 1967-07-19
Abstract: 1,190,097. Enzymatic composition. COLGATE PALMOLIVE CO. 19 July, 1967 [20 July, 1966], No. 11726/68. Heading C3H. An enzymatic composition for deodorizing fats comprises a proteolytic enzyme, a chelating or sequestering agent, a non-ionic emulsifying agent and an aqueous carrier. The enzyme may be ficin, papain, bromelin, fungal protease or a mixture of enzymes derived from bacterial flora of grease traps or septic tanks. The sequestering agent may be disodium dihydrogen versenate, sodium α-glucoheptonate or hydroxyethyl ethylene diamine tetra-acetic acid trisodium salt. The emulsifier may be nonylphenoxy poly (ethyleneoxy) ethanol, poly oxyethylene sorbitan monostearate or ethoxylated straight chain alcohols with 10-18 carbon atoms. The composition is preferably in the form of an aqueous solution in which the enzyme is active at 30-75 C. and a pH of 3À5 to 7. The composition preferably includes an activator for the enzyme, e.g. a sulphydro compound, cyanides, sodium bisulphite, H 2 S or other sulphides, and an adsorbent e.g. an acidic clay and/or charcoal.
Patent GB-380749-A (GB)
Title: Combinations
IPC: A41B9/08
Filed: 1932-04-25
Abstract: 380,749. Wearing-apparel. MUELLE, A., 8, Avenue de Friedland, Paris. April 25, 1932, No. 11854. Convention date, May 6, 1931. [Class 141.] A combination type of garment comprises a shirt open all down the front, and provided with a tail portion at the back for passing between the wearer's legs and fastening at the front. The garment is shown opened out flat in Fig. 1, and in Fig. 4 is shown with the extension c1, c2 fastened by buttons t, r to the front of the garment. In place of buttons, flaps may be employed. The garment is shaped to the figure by cutting it from sections a1, b1, c1, Fig. 3, the sections of one half of the garment only being shown. The sections a1, b1 are seamed together and the concave edge x1 of the section a2 is seamed to the concave edge x1 of the small section c1, another concave edge y1 of the section c1 being sewn to the edge of the section a1 to form a continuation of the back seam joining the two halves together.
Patent GB-687569-A (GB)
Title: Improvements in or relating to electrodes for electric batteries
IPC: H01M4/80
Filed: 1949-05-04
Abstract: 687,569. Batteries. VOGT, H. May 4, 1949 [May 4, 1948], No. 11951/49. Clast 53. A porous electrode is in the form of a thin foil and is made by sintering metal particles, or the particles may be deposited on a thin carrier and subsequently sintered. The pores between the sintered particles are filled with active material. Fig. 3 shows a part of an electrode consisting of a nickel or iron foil 1 having a thickness of 0.03 to 0.05 mm. and supporting a thin layer of porous sintered nickel or iron, 2. The foil 1 may be perforated and the overall thickness of the electrode may be from 0.2 to 0.8 mm. Materials such as carbon or a carbonate may be mixed with the metal particles to produce larger spaces for receiving the active material which may consist of a metal hydroxide. When placed in position in a battery the electrodes may be separated by filter paper, cellulose hydrate foil, artificial resin fibres, &c. and like electrodes may be connected together by a bolt and nut. The electrodes may be flat, or rolled up as shown in Figs. 6 and 7 in which the electrodes 20, 21 and separators 23 are wound on an artificial resin core 22 having holes to receive contact rods 25. Slots 24 lead from the holes to the outer surface of the core and the inner turns of the electrodes are gripped in the slots by the rods 25. The inner turns of the separators 23 are fixed in grooves 26. Fig. 8 shows a continuous process for making electrodes as shown in Fig. 3. A carrier strip 30 passes over a roller 35 immersed in a vessel containing a suspension of a metal powder and a pore-forming substance in water or other liquid which is agitated by a propeller 34. The strip 30 coated on both sides passes through a furnace 37 in which the pore-forming substance may be removed, and then through a second furnace (not shown) in which the metal powder on strip 30 becomes sintered. It then passes through a cooler 38 and is wound on a reel 41 prior to the impregnation with metal salts and precipitation of hydroxides in the pores of the sintered metal. Fig. 9 illustrates a modified process in which glazed paper is drawn from reels 50 and passed between rollers 51, the lowest of which is immersed in a suspension of iron powder. One side of each paper strip thus becomes coated with the powder which is partially dried by heaters 52. The coated strips are passed between rollers 53, a strip of metal netting 54 being simultaneously fed between the coated strips. The double strip passing out between the rollers 53 may be cut into lengths and stacked to form packets which are sintered in a reducing atmosphere at 800‹ C. The paper layers are burnt away, the glazing material of the paper preventing the metal layers from sintering together.
Patent GB-636216-A (GB)
Title: Improvements in snap-action electric switches
IPC: H01H13/36
Filed: 1945-10-05
Abstract: 636,216. Retractive switches ; snap-action of switches. MILES AIRCRAFT, Ltd., HUNT, C. L., and HAWKINS, A. S. Oct. 5, 1945, No. 11976/47. Divided out of 636,171. [Class 38 (v)] A snap-action retractive switch suitable for use in the actuator described in Specifications 627,004, [Group XXX], and 636,171 comprises a pair of toggle-members 10a, 10b compressed between a C-shaped spring-blade 7 and a grooved-anchorage 11 fast on a spindle 8, on which the blade 7 and a contact 6 carried thereby are slidable. Movement of the spindle to the right carries the toggle-members 10a, 10b into engagement with fixed-fulcrums 13a, 13b about which they pivot to give a slow initial break, until they pass through the deadcentre and impart a rapid final movement. The fulcrums may be sited alternatively so as to give a rapid break. The spindle 8 is moved by a lever 15 engaging a roller 18 thereon and pivoted to a part of the switch-frame, Fig. 2 (not shown). The switch is re-closed by a spring 14.
Patent GB-822765-A (GB)
Title: Improvements in distributing and feeding hoppers for caramels and like articles
IPC: B65B35/08
Filed: 1957-04-12
Abstract: 822,765. Hopper discharge. SERAGNOLI, A., and SERAGNOLI, E., [trading as SOC. G.D. IN ACCOMANDITA SEMPLICE]. April 12, 1957 [April 12, 1956], No. 12098/57. Class 78 (1). Sweets thrown in bulk into hopper 23 are discharged singly by domed intermittentlyrotated disc 20, the sweets falling into bottomless holes 24 to be thus carried round to wrapping station 28 whilst being supported on stationary support 25. Shed 33 secured to hopper wall 23 serves to regulate the dropping of the sweets on to the disc.
Patent GB-1294405-A (GB)
Title: Color television video signal processing apparatus
IPC: H04N9/78
Filed: 1970-03-13
Abstract: 1294405 Colour television; transistor amplifiers RCA CORPORATION 13 March 1970 [21 March 1969] 12099/70 Headings H3T and H4F To process the luminance and chrominance signal component of a composite (NTSC-type) video signal separately, i.e. vary their relative amplitudes, the composite signal is fed to the base of transistor 13, Fig. 1, whose emitter is connected to a tuned circuit 18 adjusted to  resonance at the colour subcarrier frequency (3.58 MHz). The frequency response of tuned circuit 18 is selected such that its impedance for the luminance signal components is less than the impedance of load resistor 16. Therefore the luminance signal components appear across load resistor 16 while the chrominance signal components alone are supplied to the base of transistor 21. As shown, the amplitude of the chrominance signal components may be varied by potentiometer 24. Load resistor 16 is common to the collectors of both transistors 13 and 21 so that the signals therefrom appear across resistor 16 combined i.e. at output 25, with no differential phase distortion. In a second embodiment (Fig. 3, not shown) the phase of the chrominance signal is inverted in the recombined composite signal, a third transistor being employed. Both components may pass through gain-controlled stages.
Patent GB-1031215-A (GB)
Title: Composite material
IPC: C01B32/949
Filed: 1963-03-27
Abstract: <PICT:1031215/C6-C7/1> Spheroidal tungsten carbide containing WC, W2C and a third constituent, having prominent X-ray diffraction peaks at 2#q values of 36.6 and 42.5 degrees is prepared by melting a powder containing WC and W2C in a plasma jet and rapidly cooling the molten particles.  As shown in Figure 1 the WC/W2C powder -100 + 400 mesh is fed from hopper 23 in a feed gas of H2, N2, He, Ne or A into the plasma formed in generator 11.  The plasma passes through cooling chamber 15, heat exchanger 18 and the spheroidal carbide is collected in a cyclone 19.  The powder feed may also contain TiC, TaC or Co. The spheroidal carbide is then infiltrated with a molten binder metal or alloy having a melting temperature of 1750 DEG -2500 DEG F. e.g. Cu-Ni, Cu-Ni-Sn, Cu-Ni-Fe, Fe-Ni-C, Cu-Co-Sn, Cu-Ni-Sn-Fe, Cu-Ni-Mn, Ni-Fe.  The binders may also contain minor amounts of Zn, Mn, Mo, Fe, Si, Be, Bi, B, Cd, Co, P.  Prior to infiltration the carbide spheroids are loosely packed, inbrated or lightly compacted in a carbon or ceramic mould, preheated to 300 DEG -600 DEG F. and then infiltrated with the molten binder.  Rapid cooling with air or water is preferred after infiltration.  Diamonds or normal particles of carbides ( 1/32 "-\ba1/2 ") may be added to the spheroids prior to infiltration and by packing the spheroids on a steel blank placed in a mould a coating of infiltrated hard metal is formed.ALSO:<PICT:1031215/C1/1> Spheroidal tungsten carbide containing WC, W2C and a third constituent, having prominent X-ray diffraction peaks at 2 #q values of 36.6 and 42.5 degrees is prepared by melting a powder containing WC and W2C in a plasma jet and rapidly cooling the molten particles.  As shown in Fig. 1 the WC/W2C powder - 100 + 400 mesh is fed from hopper 23 in a feed gas of H2, N2, He, Ne of A into the plasma formed in generator 11.  The plasma passes through cooling chamber 15, heat-exchanger 18 and the spheroidal carbide is collected in a cyclone 19. The powder feed may also contain TiC, TaC or Co.  The carbide is used for producing a refractory hard metal by infiltration with a molten binder metal (see Division C7).
Patent GB-320912-A (GB)
Title: Improvements in and relating to centreless grinding apparatus
IPC: B24B5/307
Filed: 1928-04-26
Abstract: 320,912. Leon, K. O. April 26, 1928. Centreless grinding ; rests. -The work-carrier of a centreless grinding machine, which supports the work between a grinding- wheel and a regulating- wheel is arranged to contact with the work at two or more spaced points or lines below the axis of the work. The carrier D supports the work B on each side of the plane containing the axis of the work and perpendicular to the plane containing the points of contact of the work with the grinding- wheel C and the regulating-wheel A, Fig. 1, and may be adjustable upwards and downwards and towards and from the wheels; it may comprise parts adjustably hinged together to accommodate work of various diameters. In the construction shown in Fig. 4, contact is made with the work at three points g, h, j, the position of the point g being adjustable by adjustment of the member k by means of a screw l ; the member k may be held yieldably in position by a spring. The carrier D may have a vertical reciprocating movement for grinding shouldered work, or an automatic work feeding device may be provided. Specification 308,091 is referred to.
Patent GB-527954-A (GB)
Title: A process for preparing saturated hydrocarbons with branched, or more highly branched chains from saturated hydrocarbons
IPC: C07C5/27
Filed: 1939-04-24
Abstract: 527,954. Hydrocarbons. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. April 24, 1939, No. 12313. Convention date, May 21, 1938. [Class 2 (iii)] Paraffins having 5 or more carbon atoms, such as pentane are converted into iso-paraffins by treatment with a catalyst of the Friedel- Crafts type together with a hydrogen halide in such quantity that the partial pressure of the hydrogen halide is at least 1 atmosphere. The treatment is effected below about 150‹ C. Suitable catalysts are the chlorides of aluminium, tungsten, molybdenum, zinc, iron, beryllium and tin. In examples (1) pentane is treated with aluminium chloride in an autoclave at 20‹ C., hydrochloric acid being pressed in to a total pressure of 5 atmospheres; Specification 498,463 is referred to. The Specification as open to inspection under Sect. 91, is not limited to the use of Friedel- Crafts catalysts and includes an additional example in which the partial pressures of hydrochloric acid are 1.5, 5.5, and 10.5 atmospheres. This subject-matter does not appear in the Specification as accepted.
Patent GB-1305915-A (GB)
IPC: G03G15/01
Filed: 1970-03-13
Abstract: 1305915 Electrophotographic recording element CANON KK 13 March 1970 [15 March 1969 (2) 31 May 1969] 12315/70 Heading H1K A member for use in electrophotography comprises a transparent photoconductive film held in and surrounded by a rigid frame. Preferably the film comprises a layer of organic photoconductor (preferred materials are listed) on a transparent base of polyethylene terephthalate. The frame may be treated to make it resistant to developer carrier liquids (preferred materials for treating the frame are named) and may have a conductive or photoconductive coating to dissipate electrostatic charge. A thick paper frame is preferred. The frame may bear indicator holes or marks for facilitating accurate positioning in a copier.
Patent GB-712318-A (GB)
Title: Manufacture of steroid compounds
IPC: C07J5/00
Filed: 1951-05-25
Abstract: Steroid compounds containing oxygen directly attached to the carbon atom in the 11-position are obtained by treating a steroid which is unsubstituted in ring C with oxygen or an agent capable of giving off molecular oxygen in the presence of an oxidation-promoting enzyme and a substrate for maintaining the activity of the said enzyme and isolating the resulting 11-oxygenated steroids.  As starting materials there may be used steroids which are saturated or unsaturated and which contain a wide variety of substituents, especially compounds of the androstane, pregnane, sterol or sapogenin series.  As agent giving off oxygen there may be used hydrogen peroxide.  The enzymes are used in particular in the form of an organ preparation from suprarenal glands, kidneys, levers or mixtures thereof.  As substrates there are employed in particular those of the cyclophorase system or the compounds belonging to the citric acid cycle.  A component of a physiological solution, e.g. carbohydrates, inorganic or organic salts such as sodium phosphate, alkali chlorides, magnesium sulphate or sodium acetate, may be added to the reaction mixture to promote the action of the enzyme.  Examples describe the oxygenation of desoxy-certicosterone, and D 4 - 3 : 20 - diketo - 17a  - 21-dihydroxy pregnene.  In addition, there may be used 3b  : 5a - or 5b -androsterones and their esters and ethers, cholesterol or diosgenin.
Patent GB-353453-A (GB)
Title: Improvements in machines for making flat-bottomed paper or like cups or cartons
Filed: 1930-04-22
Abstract: In a machine for making flat-bottomed paper cups or cartons in which a blank is formed into tubular shape on a rotating mandrel and provided with a flanged bottom supplied thereto, the blanks are supported in a magazine 85, Figs. 3 and 7, upon a slotted table 61 and are fed successively therefrom by rollers, bars slidably mounted in the table then engaging the discharged blanks and advancing them to a predetermined position on a transfer head 117 where they are engaged by a gripper 128 and carried by the head to the forming mandrel 21.  The part of the blank projecting over the head 117 is heated by an electric heating plate pivoted to the edge of the table board 67 and is gummed by curved pads 178, 179 on a plate 180 reciprocated in guides by a bar 185 from a cam 115 on the shaft 36; cam 115 also actuates the sliding bars of the blank-feeding means. The pads 178, 179 are gummed by a roller 161 reciprocated along horizontal rods 164 to take gum from a roller 160 supplied by a roller 150 rotating <PICT:0353453/III/1> <PICT:0353453/III/2> in a bath 147 and to transfer the gum to the pads.  Specifications 219,354, [Class 95, Paints &c.], and 227,519, [Class 100 (i), Feeding and delivering webs &c.], are referred to.