baber/WOPTO huggingface dataset:
Patent GB-1412677-A (GB)
Title: Process for shaping a thermoplastic layer
IPC: G03G15/22
Filed: 1973-03-15
Abstract: 1412677 Electrostatic recording process HOECHST AG 15 March 1973 [17 March 1972]  12432/73 Headings G2C and G2H In a recording process using a material comprising a flexible dielectric transparent foil having a layer on a surface thereof comprising an organic photo-conductor disposed in polystyrene or a  hydrogenated colophony ester, the layer is charged and exposed or charged, exposed and warmed, and then shaped by heating the material, the material being disposed on a rigid base having one or more conductive surface regions. The layer softens between 60 and 100C. In an embodiment a polyester film 2 having an aluminium coating 3, is coated with a layer 1 of poly-N-vinylcarbazole, trinitrofluorenone, chlorinated diphenyl and low M.W. poly α-methyl styrene. The double coated film is attached to a conductively coated glass base 5, 4 by adhesive tapes which retain a thin film of air between the film and the base. On electrostatically charging the recording member, the charge flatens the film against the base. In another embodiment the conductive layer 3 is omitted and the conductive coating 5 may be replaced by discrete areas (7), Figs. 1 and 3 (not shown), of vapour deposited gold. In other embodiments the carrier and the photo-conductive layer are inverted and the photo-conductive layer is separated from the conductive surface area of the base by a layer of water or liquid hydrocarbon (8), Fig.4 (not shown), or a perforated aluminium foil (9), Fig.5 (not shown), or dielectric layer of polyester or polymethyl methacrylate or a combination of a conductive and a dielectric foil. The perforations are preferably aligned with the discrete conductive areas (7) on the base 4 and may be packed to a density of 4,000 holes cm.<SP>-2</SP> by using an electron beam to make them. The photo-conductive thermoplastic layer may also be copper phthalocyanine, low M.W. poly α-methy styrene and polystyrene. The discrete conductive areas may be formed by etching. A second baseplate without conductive areas may be set slightly away from the first and liquid circulated through the space to cool or heat the material; optionally the material may be maintained just below softening point.
Patent GB-128667-A (GB)
Title: Improvements in Clinometer and Angle of Sight Instruments.
Inventor: BECK CONRAD
IPC: G01C5/00
Filed: 1917-08-30
Abstract: 128,667. Beck, C., and Beck, H. C. Aug. 30, 1917. Clinometers. - Relates to instruments in which a half-lens and right-angle prism are used for viewing an adjustable level through one half of the pupil of the observer's eye, the light from the object viewed entering the other half of the pupil. Fig. 1 is a side elevation; Fig. 2 is a section through the line F, F of Fig. 1; Figs. 4 and 5 show the rectangular half-lens l and a metal plate p, which secures the position of the lens along the horizontal, but allows of relative movement in a vertical direction, the plate being connected to the lens l by a vertical projection engaging in a groove on the lens. A cradle g carrying the spirit-level f is pivoted on a shaft c in the main frame a, a<1>, a<2>, a<3> and carries a worm segment gearing with a vertical screw h with graduated heads. In order to prevent back-lash between the screw and worm the pivot shaft e is mounted in an eccentric sleeve, which can be rotated in the frame and fixed in the correct position. The right-angle prism k is mounted in a projection of the main frame, and is secured by means of a cylindrical rib fitting into a groove in the prism. The half-lens l is capable of vertical adjustment by means of the screws 0. Outside the lens and prisms is a metal septum m pivoted at a point n and having horizontal flanges enclosing the top and bottom of the lens. The frame is provided with feet b, b<1> for placing on a surface; it is also provided with a trigger piece c for use in holding the instrument between the thumb and fingers of one hand.
Patent GB-1116720-A (GB)
Title: Improvements relating to netting manufacture
IPC: B21F23/00
Filed: 1967-03-16
Abstract: 1,116,720. Slat and wire fabrics. ERNST SCHOCH A.G. 16 March, 1967 [17 March, 1966], No. 12461/67. Heading D1K. [Also in Division B3] A machine for producing reinforcement netting having a layer of spaced parallel stiff reinforcement rods 1, 1', 1" connected together by flexible spacers 2 and held in plase by intertwined U-shaped loops 3, 4 formed in the spacers, includes a feed device having members 48, reciprocating along a base plate 10, along which the spacers 2 travel, to move the reinforcement rods 1 connected to the spacers 2 from a connecting station, at which they are connected to the spacers 2, solid members 48 cooperating with at least one movable abutment 20 on the base plate. The rods 1 are fed one at a time down an inclined plate 11 to means 24, 25, 21 which form the loops 3, 4 in the spacers 2 and twist them together as disclosed in Specification 1,094,078, to which reference is made. The members 48 are moved by cams 47, against springs 52, to push a rod 1". after connection to the spacers 2, from the connecting station and over the abutment 20, then in its night hand position. The abutment is in its left hand position during the connecting operation and is moved by a link 55. A single common element may move the abutment 20 and a jaw 18 of the loop forming means. The spacers 2 may be of wire or plastic.
Patent GB-1348536-A (GB)
Title: Semiconductors
IPC: H01L33/30
Filed: 1971-04-30
Abstract: 1348536 Electroluminescence VPDURAEV Z I ALFEROV V M ANDREEV V I BORODULIN D Z GARBUZOV E P MOROZOV E L PORTNOI G T PAK and V I SHVEIKIN 30 April 1971 [30 April 1970 20 May 1970] 12465/71 Heading C4S [Also in Division H1] An ohmic contact to an active region consisting of a solid solution of the form consists of a metallic layer separated from the region by a passive layer of GaAs of the same conductivity type as the region. Typically contacts are made to a heterojunction laser structure consisting of N and P aluminium gallium arsenide layers sandwiching an N or P aluminium gallium arsenide layer of which the aluminium arsenide content is less than that of the flanking layers and less than 30% via N and P type gallium arsenide layers, the entire structure being formed by liquid or vapour epitoxy. Similar contact regions may be provided on a light emitting PN diode of gallium arsenophosphide. Dopants may be Ge, Si, Te or mixtures thereof.
Patent GB-211049-A (GB)
Title: A splash lubricating system for reciprocating engines, pumps and the like
IPC: F16N7/26
Filed: 1923-05-11
Abstract: 211,049. Hone, J. H., and Heatly- Gresham Engineering Co., Ltd. May 11, 1923. Lubricant conveyed by mechanical means. -In a lubricating system for reciprocating engines or pumps in which dippers on connecting-rod ends are fed with lubricant from transverse troughs, A, Fig. 3, which are fed from a longitudinal channel C, oil is lifted from a well D over the wall of the channel by a device operatively connected to both the crankshaft and the crank-case. In the form shown in Fig. 1, the lifting device comprises a spoon E formed on an arm J journalad on a crank-pin or eccentric K on the crank-shaft and guided by a tail piece L pivoted on a block M sliding in horizontal guides N in the crank-case. The slide device may be replaced by e link device. In the form shown in Fig. 4, the lifting device comprises a spoon E hinged to the wall of the well D and connected to a link P journaled on a crank-pin or eccentric K on the crank-shaft.
Patent GB-874718-A (GB)
Title: An improved fastener
Inventor: FERNBERG ERIC BIRGER
IPC: F16L3/127
Filed: 1959-04-14
Abstract: 874,718. Clips. F. T. PRODUCTS Ltd. April 11, 1960 [April 14, 1959], No. 12677/59. Class 44. A tube 23, Fig. 3, is secured to a panel 24 by a fastener comprising a spring metal clip having a nose 11, diverging and converging surfaces 12, 13, 14, 15 and curved tube embracing limbs 18, 19. At the junctions between the surfaces 14, 15 and the limbs tube guiding lugs 21, 22 are formed. The limb sides 26 opposite the lugs 21, 22 may also be extended to form tube guiding lugs.
Patent GB-946057-A (GB)
Title: Process for the preparation of hydroxy containing low molecular weight copolymers
IPC: C08F16/36
Filed: 1962-04-03
Abstract: A hydroxy-containing polymer is prepared by reacting allyl alcohol with a conjugated diene in the presence of a free radical catalyst. Specified dienes are butadiene, isoprene, dimethyl butadiene, 2-4-hexadiene and 1-3-heptadiene. A third monomer 4-vinylcyclohexene-1, mesityl oxide or d-limonene may also be present.  It is preferred that a terpolymer should contain 1 to 40% allyl alcohol and less than 35% termonomer. Specified catalysts are ditertiary butyl peroxide, tertiarybutyl hydroperoxide and dicumyl peroxide. Diluents e.g. hydrocarbons and ketones may or may not be present. The copolymer may be reacted with a diisocyanate, or acetic anhydride, or with hydrogen in the presence of a hydrogenation catalyst, or with a polycarboxylic acid anhydride or a glycidyl polyether of 2-2-bis(4-hydroxyphenyl) propane.
Patent GB-1210758-A (GB)
Title: Improvements in separators for alkaline cells
Inventor: ARMS JOHN TAYLOR
IPC: H01M50/443
Filed: 1969-03-11
Abstract: 1,210,758. Laminates. ESB Inc. 11 March, 1969, No. 12781/69. Heading B5N. [Also in Divisions B2, C3 and H1] A laminated structure for use as a battery separator in a rechargeable alkaline battery comprises a nylon mesh or fibrous polyethylene substrate to which is laminated a thin film containing a metallic sulphide, which is insoluble in alkali and which is electrically non- conductive such as those of Cd, Ni, Fe, Pb, Zn or Hg, a thermoplastic resin binder such as polyethylene, polyethylene-polymethacrylic acid copolymer and butadiene-styrene elastomer. The film may also contain a cationexchange resin to provide permeability which may be of the strong acid type, such as one containing sulphonic acid groups, or of the weak acid type e.g. polymethacrylic acid, and may also include a water-soluble plasticizer such as polyethylene oxide. The structure is then subjected to a water bath to leach out the plasticizer and is then equilibrated in KOH which causes the film to expand.
Patent GB-560004-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H73/30
Filed: 1942-09-11
Abstract: 560,004. Controllers. BRITISH THOMSON - HOUSTON CO., Ltd., and MARTIN, E. H. B. Sept. 11, 1942, No. 12822. Drawings to Specification. [Class 38 (iii)] A starter for a splitphase motor, upon depression of its button, first makes running connections and then starting connections. Upon release of the button, the starting connections are broken and the starter is retained in the running position by a latch until tripped by a " stop " button or by a thermal overload release.
Patent GB-585701-A (GB)
Title: Improvements in and relating to photographic exposure meters
IPC: G01J1/42
Filed: 1944-07-06
Abstract: 585,701. Photographic exposure meters and calculators. RYDER, N., HARWOOD, H. V., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. July 6, 1944, No. 12901. [Class 98 (i)] An exposure calculator associated with the exposure meter has a cursor member slidable on the film speed scale. The casing r has a window 2 in which is framed a dial plate 3 formed with a rectangular slot, the edges 3a, 3b of which are marked with the film speed scales 4 and stop numbers 5 respectively. A band 8 of paper, linen or indiarubber passing between two drums is mounted in the dial slot and carries shutter speed scales 7 and lightintensity scales 6. The cursor index 11 slides on the edge 3a and is attached to a plate 12 from which project two pins 12a, 12b which run in a guide slot 13a in a rail 13 mounted on the casing. The pin 12b also extends through a slot in an elongated arm 14 which is attached to a spindle 15. A knurled knob 15a on the end of the spindle 15 enables it to be turned against the frictional restraint of a helical spring. The pointer 18 of a photo-electric cell and meter moves over a scale 19 which is marked similarly to the scale 6. The cursor 11 is moved to a point on the scale 4 which indicates the speed of the film being used and the band 8 is rotated to bring the scale reading of the meter 18 opposite the cursor so that the appropriate shutter or frame speed and aperture stop of the camera for an appropriate exposure can be determined.
Patent GB-803833-A (GB)
Title: Maximum electric demand indicating apparatus
IPC: G01R11/60
Filed: 1956-04-27
Abstract: 803,833. Supply meters. CHAMBERLAIN & HOOKHAM, Ltd., DEACON, L. O., and PURKIS, J. March 26, 1957 [April 27, 1956], No. 12953/56. Class 37. [Also in Groups XIX and XXXVIII] In a maximum demand indicator, an electrically operated mechanism for advancing the indication by a predetermined amount is energized by contacts which are operated whenever the indicator is coincident with a member controlled by the measuring instrument. As shown, the member 1 attached to a spindle 3 controlled by the measuring instrument, which may be thermal, closes contacts 5a on the indicator 5 which, with the gear 9, is loose on the spindle 3. The solenoid 14 is thus energized and advances the indicator by one step of the pawl and ratchet mechanism 12, 6. A spring 17 may be provided to re-set the indicator 5 but this is normally prevented by a second pawl 15.
Patent GB-635719-A (GB)
Title: Resistor construction
IPC: H01C1/082
Filed: 1947-05-14
Abstract: 635,719. Resistance coatings and deposits ; cooling resistances. INTERNATIONAL RESISTANCE CO. May 14, 1947, No. 12971. Convention date, June 15, 1946. [Class 37] A liquid-cooled resistor comprises a resistance element arranged in an elongated enclosure and means whereby the cooling liquid is directed continuously and in a turbulent or whirling motion over the resistance element, As shown, Fig. 1, an insulating tube 10 with a resistance coating 15 on its inner surface comprises cup-shaped terminals 11 connected to plumbing fittings 12 in a water line. An impelling element 13 which extends into the bore of the tube 10 and constitutes the inlet for the water is formed with curved grooves 23, Fig. 4, terminated by holes 22. The latter, preferably four in number and equally spaced around the circumference extend into the interior of the impeller so that the inflow spurts through the holes 22 and is constrained to follow the grooves 23 and in consequence stream in helical paths over the surface of the resistance coating 15. This turbulent motion of the water through the tube 10 prevents static air bubbles on the resistance coating and thus the occurrence of hot spots. It is stated that a wire winding may be substituted for the resistance coating 15.
Patent GB-623698-A (GB)
Title: Improvements in or relating to valves
IPC: B25D9/16
Filed: 1947-05-14
Abstract: 623,698. Manually-actuated valves. FARR, E. May 14, 1947, No. 12985. [Class 135] In a valve for controlling the flow of fluids, particularly compressed air, a valve stem c is movable against a spring i or other resilient means and carries two valve elements h, o, a lift valve element h controlling communication between the supply and delivery connections l, m, and a flexible sleeve valve element o controlling communication between connection m and exhaust ports n, such that when the element h is open, the element o closes the ports n and vice versa. The element o is a flexible, cup-leather piston mounted on the stem c between nuts p, q. The stem slides on a rod f at its lower end, and in a bore b at its upper end, the portion protruding out of the bore carrying a pedal or foot-plate s.
Patent GB-1371303-A (GB)
Title: Device for measuring a quantity of refrigerated liqefied gas
IPC: G01F15/08
Filed: 1973-03-19
Abstract: 1371303 Dispensing liquified gas GRIESHEIM GmbH 19 March 1973 [15 April 1972] 13056/73 Heading A4T A device for measuring a quantity of liquid gas, such as liquid nitrogen, oxygen or argon, being transferred from one vessel 1 to another vessel 2, such as from a road tanker to a storage tank, comprises a withdrawal pipe 3, a pump 5 and a liquid meter 6 within the withdrawal pipe, and, arranged after the liquid meter, a section of pipe 10 having a high-flow resistance which prevents the formation of gas before and within the liquid meter. The withdrawal pipe 3 is connected by a cutoff valve 4 to the rotary pump 5, the flow from which passes through the meter 6 and a cut-off valve 8 to the high-flow resistance pipe 10 which may consist of a throttle or, as shown, a corrugated pipe having hose couplings 9, 11 connecting the pipe to the valve 8 and a cut-off valve 13 in the filling pipe 14 of the tank 2. The pipe 10 causes high pressure between the pump 5 and coupling 11 so that bubbles of gas do not form in the meter. A jacketed section is arranged around pump and meter which are cooled prior to delivery by passing the liquified gas through the section by opening a valve 15. The pressure in the tanker 1 may also be raised by 1 bar prior to delivery to effect a super cooling of the liquid.
Patent GB-570965-A (GB)
Title: Combined boring bar and tool bit holder
IPC: B23B29/24
Filed: 1943-08-12
Abstract: 570,965. Turning BARRETT, E. M. Aug. 12, 1943, No. 13087. Convention date, April 28. [Class 83 (iii)] Tool-holding rigs for lathes have means for. supporting a boring-bar and also one or more turning or screwcutting tools which may be used in succession without dismantling the rigs. A hollow post 18 is secured to a compound slide 10 by a T-headed shank 20 screwing in a cup-shaped member- 21 having a vertical stud 19 for a nut 23 which serves to clamp the post on the slide. V-shaped surfaces 37 on the post, inclined to each other at 90 degrees, locate a boring-bar 12 coaxial with the lathe axis, the bar being clamped by a yoke 24 having a 60 degrees V-slot 49 and a nut 25 screwing on a stud 18a on the post 18. Horizontal flanges 60, 61, Figs. 2 and 3, on the post support a turning-tool 64 and a screwing-tool 69, each mounted on a swivel pad so that the cutting-edge may be adjusted to the axial plane of the lathe. The boring-bar and cutter 64 may be used in succession with the same setting of the post 18, by adjustment of the slide 10, but the post may need to be rotated on the slide through 90 degrees to allow the cutter 69 to be used. An inclined slot 16b and a transverse slot 17a are provided at opposite ends of the boring bar so that a cutter may be used at either end and uniformly spaced graduations x are marked on the bar to facilitate the setting relatively to the work. The member 21 has a central aperture 21a to receive the bar and rotation of the member in the post is prevented by a dowel 22. In a modification, the flanges 60, 61 are replaced by a boss 75, Fig. 11, having a cylindrical aperture 76 in which a tool bar 77 may be secured by screws 80 engaging a flattened surface 79 on the bar. A turning &c. cutter 88 is secured in a forked end 81 of the bar and rests on a swivel pad 86 to allow the height of the cutting-edge to be adjusted.
Patent GB-220383-A (GB)
Title: Improvements in metal framework for aircraft
IPC: B64C1/06
Filed: 1923-05-17
Abstract: 220,383. Mooney, D. J. May 17, 1923. Framework.-Metal spars, girders &c. of box form for aircraft are constructed with corrugated flanged strips b to which are riveted channel strips c, with sides and base longitudinally bent, the two composite booms thus formed being joined together by webs e shaped at their edges to fit the sides or bases of the channel strips. Deep spars are formed by attaching additional channel strips g, Fig. 7, to the strips c so as to form a cellular structure. Other forms are described only in the shape and number of the corrugations.
Patent GB-404609-A (GB)
Title: Process for the production of tubes, seamless drums, standard iron sections and railroad structural material
IPC: C22C38/16
Filed: 1932-05-06
Abstract: Articles which cannot be machined to any substantial extent after shaping, including tubes, seamless drums, standard iron sections, and railroad structural members, are made from steel containing 0.6-5 per cent of copper and 0.15-5 per cent of nickel.  The nickel may be wholly or partly replaced by cobalt. The articles may be annealed at a temperature between 400 DEG  C. and 700 DEG  C.  The Specification as open to inspection under Sect. 91 comprises a steel for the production of objects subjected to high temperatures, especially objects which cannot be machined after shaping and are required to show a surface free from flaws such as tubes, seamless drums, etc., the steel containing perceptible quantities of a constituent such as copper which separate out on brazing and at least one other element which separates out simultaneously with the first constituent and forms therewith mixed crystals melting at temperatures above the hot working temperature, e.g., a steel containing more than 0.4 per cent of copper and more than 0.15 per cent of one or both of the elements nickel and cobalt.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specifications 360,926 and 373,453.
Patent GB-644839-A (GB)
Title: Method of and apparatus for bonding the side seams of can bodies
IPC: B21D51/28
Filed: 1948-05-13
Abstract: 644,839. Making hollow-ware. CONTINENTAL CAN CO., Inc. May 13, 1948, No. 13196. Convention date, Oct. 8, 1947. [Classes 83 (ii) and 83 (iv)] Soldering; jointing.-Can bodies, e.g. of the lap, or lock and lap seam type are made by placing a heat-fusible bonding material, e.g. solder or thermoplastic resin &c., on at least one of the seam portions of a body blank so that it is within the limits of the seam and passing the seam portions through an induction heating zone to fuse the bonding material and bond the seam while the body is in motion.. The solder may be in strip form or as a powder mixed with a flux, and if the blank is of heavily tinned plate, no solder may be needed. The thermoplastic, e.g. a polyvinyl acetate may be adhered as a strip, or applied as an emulsion, solution, suspension or in melted condition. The body may be lithographed or lacquered before bonding. An apparatus comprises a carrier 22 in which the body blank, wrapped around a core 29 is placed on locating ribs 28 and held by side clamps and wing nuts (Fig. 3, not shown). A seam backing 33 to prevent heat dissipation and core damage comprises a glass-bonded mica strip insert in the core 29. The carriers 22 are traversed in succession along a slotted bed 10 by dogs 21 on a chain 17 running in a bed slot and driven by electric motor &c. The heater unit comprises a transformer with water-cooled primary 56 and secondary 62 having a parallel-sided extension 67 fitted on each side (see Fig. 5, not shown), of a presser foot 48 of glass-bonded mica supported from the vertically adjustable transformer housing 46. Means for holding the seam together while the bonding material sets comprises a series of downwardly sprung idle rollers 83 mounted in a vertically adjustable frame 71. As the carrier 22 traverses, a side shoe (Fig. 6, not shown), closes a micro-switch 38 to energize the induction coil 67 with a 525 k/cs. supply and fuse the bonding material] while the foot 48 presses the seam edges together. A further switch 40 engaged by the carrier shoe de-energizes the coil 67 and the rollers 83 hold the seam together while the bond sets and the carrier 22 moves to the end of the machine.