baber/WOPTO huggingface dataset:
Patent GB-1325580-A (GB)
Title: Method and apparatus for increasing the charge density on the surface of non-conductive materials in industrial processes
IPC: B29C48/08
Filed: 1970-12-15
Abstract: 1325580 Tensioning webs KALLE AG 15 Dec 1970 [17 Dec 1969] 59438/70 Heading B8R [Also in Divisions B5 and H1] A method of attracting a web to a feed roller, e.g. in a process for stretching a film of plastics material, involves passing the material 1 over an earthed roller 2 and below an insulated corona electrode 6 which generates electrons and gas ions which are directed towards the surface of the material to be charged by directing electrode 3 located above the corona electrode and arranged to produce an electric field of the same polarity as that emanating from the corona electrode 6. The corona electrode 6 is fed with direct current, preferably of from 2 to 30 kV, from generator 7 and may be heated by heating device 9 in which case lower voltages may be used. The directing electrode 3 may consist of one or more wires, metal strips or metal layers applied to a non-conductive support by vacuum deposition and/or lamination and is preferably connected to voltage generator 5 fed from supply line N via an instrument 4 for measuring the current flow. The process enables higher charge densities to be built up on the surface of the material at lower voltages and thus decreases the amount of slip between the film 1 and earthed roller 2.
Patent GB-1430860-A (GB)
Title: Pressure control arrangement for changing gear speeds in motor vehicle gearboxes
IPC: F16H63/30
Filed: 1973-12-27
Abstract: 1430860 Change-speed control ZAHNRADFABRIK FRIEDRICHSHAFEN AG 27 Dec 1973 [23 Dec 1972] 59778/73 Heading F2D To reduce shift time, hydraulic pressure applied to a ratio establishing single servomotor 30 in a motor vehicle transmission is controlled by two pressure regulators, one, 23, loaded mechanically or electro-hydraulically in accordance with the selected shift-lever channel E, F or G, the other, 1, introduced in accordance with the selected direction of shift H, J in that channel. The second regulator, 1, is in one branch 40 of branched lines 40, 41 leading to respective opposite ends of the servo shift cylinder 30 and controlled by valves 14, 14a operated mechanically in accordance with the selected direction of shift, up or down. The first regulator 23 is additionally loaded by line pressure 11 through a controllable valve 9.
Patent GB-1291659-A (GB)
Title: Flow regulating device
Inventor: NOMURA NORIO
IPC: F15B21/045
Filed: 1970-12-16
Abstract: 1291659 Valves N NOMURA 16 Dec 1970 [29 Dec 1969] 59808/70 Heading F2V Disposed within a housing 1 having inlet and outlet ports A and B, respectively, there is a hollow sleeve member 3 which has an annular aperture 6 registering with the inlet A and a substantially triangular aperture 7 registering with the outlet B, the triangular aperture having sides which diverge outwardly in a direction towards the outlet, that is the area of aperture 7 increases towards the outlet. The sleeve accommodates a plug 9 having a cavity 11, one end of which opens directly to the aperture 6 whilst the other end opens into a passage 13 which converges in a direction towards the plug periphery and terminates in an opening 12, the opening 12 co-operating with the aperture 7 and their relative disposition, determined by the angular setting of plug 9, serves to control the outflow to port B.
Patent GB-1202640-A (GB)
Title: Bed frame
Inventor: MITTELMEIER KURT
IPC: A47C17/38
Filed: 1968-12-19
Abstract: 1,202,640. Wall beds. K. MITTELMEIER and F. MITTELMEIER. 19 Dec., 1968, No. 60279/68. Heading A4J. A bed frame 1, 1<SP>1</SP> with a wire mattress 2 is pivotally mounted adjacent one end on blocks 5 secured to the floor for movement between a horizontal, operative position in which the mattress 2 is under longitudinal tension applied by springs 3 and a raised, inoperative position in which the tension is considerably reduced, the tension in the springs 3 being adjustable in the raised position by selectively engaging each anchoring hook 16 in one of a plurality holes 15 in an anchoring plate 14. Two axles 6, 7 extend between the blocks 5 and carry rollers 8, 9 in their ends. The rollers 8 of the axle 6 engage in channeled sides 1 of the bed frame so that the sides 1 are longitudinally displaceable relative to the axle 6. The other rollers 9 act as cam followers which engage camming guides 11 carried by lugs 12 depending from the bed frame. On pivoting the frame upwardly from the Fig. 2 position the sides 1 are first displaced relative to the axle 6 to increase the tension in the springs 3 as the apex 17 of the guide passes the roller 9. Thereafter, on further raising of the frame the sides 1 move rearwardly to relieve the spring tension which holds the rollers 9 on the guides 11 so that in the fully raised position the tension is markedly reduced and may be manually adjusted.
Patent GB-1318570-A (GB)
Title: Protein separation
IPC: B01J20/281
Filed: 1970-12-18
Abstract: 1318570 Chromatographic separation of polyelectrolytes EXPLOATERINGS AB TBF 18 Dec 1970 [22 Dec 1969] 60337/70 Heading B1X [Also in Division C3] Polyelectrolytes such as proteins, peptides, nucleic acid and nucleotides are chromatographically separated using an organic, amphoteric, hydrophillic adsorbent which contains basic nitrogen containing groups and either carboxylate or sulphonate groups. The adsorbent is the product of a coupling reaction between a amino acid (or derivative), e.g. alanine, arginone or glycine and an hydroxy containing hydrophillic polymer, e.g. agar, agarose, cellulose or cross-linked dextran. The amino acids can be joined to the polymers using cyanogen bromide, or e.g. vinyl acetate and vinyl pyridine can be co-polymerised with divinyl sulphon or divinyl benzene. The acetyl groups are then hydrolised and the polymer reacted with halogen carboxylic acids. The chromatographic effluent may be recycled.
Patent GB-1359680-A (GB)
Title: Sewage treatment system
IPC: C02F11/123
Filed: 1971-12-31
Abstract: 1359680 Endless band/rotary drum filter ECODYNE CORP 31 Dec 1971 [11 Jan 1971] 60999/71 Heading BID  An apparatus for concentrating sludge from a solids-liqud flow comprises a cylindrical drum 20 with a horizontal axis of rotation and, spaced horizontally therefrom, an idle roller 22. An endless filter screen 70, 71 extends round the drum and roller to give an upper portion 71 which is slightly inclined to the horizontal. Liquid to be filtered is fed in a horizontal direction onto the filter screen at 87, the drum rotating clockwise. Initial removal of liquid is by gravity, the filtrate falling into casing 90 and being removed at 95. Further liquid removal takes place over an arcuate segment of the drum by means of a vacuum produced within that segment of the drum. The concentrated sludge is discharged by scraper 97. The filter screen is suitably formed of a mono-filament woven material with screen openings of 50-500 microns, e.g. a polyester fibre.
Patent GB-1241145-A (GB)
Title: Proportional fluidic amplifier
IPC: F15C1/14
Filed: 1969-12-29
Abstract: 1,241,145. Pure fluid proportional amplifiers. BENDIK CORP. Dec.29, 1969 [Jan.27, 1969], No.63104/69. Heading G3H. The entry portions 60, 62 of the output channels 26, 28 of a proportional amplifier are flared, as shown, to inhibit the sharp cut off of output pressure which results from saturating a conventional amplifier. Figs. 2 and 4 (not shown) illustrate the output/control pressure characteristics of amplifiers with and without flared entry portions 60, 62.
Patent GB-1298959-A (GB)
Title: Electrode configuration for electro-photography
IPC: G03G5/024
Filed: 1969-12-30
Abstract: 1298959 Electro-photographic imaging OWENS-ILLINOIS Inc 30 Dec 1969 [28 Feb 1969] 63313/69 Heading G2H In an electro-photographic copier using the principle of persistent internal polarization in a photo-conductive layer, the two electrodes producing the polarizing field are located on the same side of the photo-conductive layer and are formed of arrays fixed to or embedded in the surface of the layer. A D.C. or an A.C. potential may be applied. As shown electrodes 12, 14, formed of arrays of conductive strips, are attached to the surface of photo-conductive layer 10. A D.C. potential is applied between the electrodes to polarize the layer in the illuminated region 18. When an A.C. potential is used Fig.4 (not shown), charge carriers of the polarity having the lower mobility remain in the exposed areas to form the latent image.
Patent GB-742373-A (GB)
Abstract: 742,373. Terminal boards. PYE, Ltd. June 3, 1954 [June 3, 1953], No. 15313/53. Class 38 (1). A tag strip 3 is mounted on a chassis 1 by means of lugs 2a bent up from the chassis and having reduced end portions 6 which engage holes 4 in the tags 3a and strip and are soldered therein. Where the holes 4 are not provided the ends of the lugs are bent over to form flat surfaces which are soldered to the tags.