baber/WOPTO huggingface dataset:
Patent GB-1396343-A (GB)
Title: Plating apparatus
IPC: C25D5/02
Filed: 1972-05-24
Abstract: 1396343 Electro-plating patterns on strip GALENTAN AG 24 May 1972 [25 May 1971 7 July 1971]  45112/74 Divided out of 1396342 Heading C7B Apparatus for continuous plating of line or spot metal (e.g. gold) patterns on metal strips, e.g. of brass, phosphorbronze or nickel silver, has a wheel 1 e.g. comprising an electrolysis chamber 2 formed between two chamber rings 8 and 9 spaced on bearing rings 26, 28 and 27, 29 on a stationary shaft 10, containing an anode, e.g. a perforated Pt-plated Ti strip 6 connected to Ti wire 25, and plating electrolyte distributer 23 having inlet 22, 33 for connection to pressurized electrolyte supply and radial passages 34, 24 through which electrolyte is delivered e.g. through a slot or circumferential array of apertures in the anode 6 towards a part of the circumference of the wheel rim against the metal strip 4 to be plated (as cathode) which covers that part and is transported lengthwise to rotate the wheel at controlled speed. A tension regulator (43), Fig. 1 (not shown) placed before the wheel controls tension in the strip. Electrolyte 5 is fed into chamber 2, overflows through perforations 17 in rings 8, 9 into a tank 18 below the wheel 1, to be recycled via pipes 21, 22 through a filter and heat exchanger 20. The rings 8, 9 may carry two spaced adjustment rings 11, 12 which can be adjusted in axial direction with screws 35 and bushings 36, and between which the strip 4 is guided. One or more rim rings may be present between the rings 8, 9 Fig. 8 (not shown) for plating more than one line in one operation. The apparatus may additionally be provided with an endless carrier band (Fig. 8) guided over rollers and the same or a smaller part of the wheel circumference to press against that side of the metal strip not engaged to the wheel.
Patent GB-1184628-A (GB)
Title: Improvements relating to the Dyeing or Printing of Textile Fibre Blends with Cationic Dyestuffs and Anionic Dyestuffs Concurrently, Compositions and Dyebaths for Use Therein, and the Resulting Products.
IPC: C09B67/42
Filed: 1968-09-25
Abstract: 1,184,628. Textile wetting agent. AGRIPAT S.A. 25 Sept., 1968 [26 Sept., 1967], No. 45509/68. Heading C5D. [Also in Division D1] A composition particularly for use in dyebaths comprises 5-75 parts by weight of the diethanolamide ofcoconut oil fatty acids and 95-25 parts by weight of the condensation product of 1 mol of oleyl alcohol with 20 mols of ethylene oxide, the composition preferably being mixed with water. The ingredients are mixed by conventional procedures preferably 10 parts by weight of diethanolamide of coconut oil fatty acid being mixed with 90 parts by weight of the ethylene oxide oleyl alcohol condensate.
Patent GB-1128534-A (GB)
Title: Improvements in and relating to multi-stage flash evaporation plants
IPC: B01D3/06
Filed: 1966-10-12
Abstract: 1,128,534. Evaporators, multi-stage flash type: desalination of sea water. ATLAS-MAK MASCHTNENBAU G.m.b.H. 12 Oct., 1966 [13 Oct.. 1965], No. 45575/66. Heading B1B. In a multi-stage flash evaporator, suitable for the distillation of sea water, wherein the flash chambers 1 are mounted one above the other and the sea water flows downwards from chamber to chamber through small holes (or slits) in the horizontal separating walls between the chambers, the condenser chambens 2 are also mounted one above the other, and the condenser tubes 3 extend freely through several condenser chambers via borings in the horizontal separating walls, the condensate flowing down through the annular slots between the tubes and the borings in the separating walls. The vapour spaces of the flash chambers are sealed off from each other by sea water, and the vapour spaces of the condenser chambers are sealed off from each other by distilled water, whereby the required pressure decrease from stage to stage is achieved. The evaporator shown in cross-section in Fig. 3 comprises two vertical, concentric tubes, which may be made of concrete or reinforced concrete. The condenser chambers 2 occupy the central tube. The space between the two tubes houses annular flash chambers, the horizontal separating walls between which are provided with holes 37. The vapours formed in each flash chamber pass through openings 38 in wall 30 into the adjacent condenser chamber 2. Straight parallel condenser tubes (not shown) pass through the chambers 2. These condenser tubes do not extend through all the condenser chambers but are divided into several lengths, each of which extends through a group of condenser chambers. Between these groups, there are provided receivers for the transmission of cooling water from one group to the next. The evaporator shown in Fig. 1 is divided into a feed section 1a and a circulation section 1b. Raw sea water, supplied through pipe 4, is pumped up through the condenser tubes 3 of section 1a. Most of the sea water flowing out of the condenser of the uppermost stage of section 1a is discharged through pipe 6, and the remainder flows through pipe 5 to chamber 7 where it mixes with the brine flowing out of the lowermost flash chamber of section 1a. The mixture is pumped up through pipe 9 to the condenser tubes in the lowermost condenser chamber of section 1b. The warmed sea water leaving the condenser of the uppermost condenser chamber of section 1b flows through heater 10 and is then introduced into the uppermost flash chamber. Distilled water and excess brine are discharged from the system through pipes 15 and 17, respectively. Air is withdrawn from the system by pumps 23 and 24. The stages are constructed in such a manner that approximately the same drop in temperature is obtained from stage to stage.
Patent GB-1207180-A (GB)
Title: Piezoelectric ignition device and gas torch incorporating such a device
Inventor: DEUCHER THEODORE FRANK
IPC: F23Q3/00
Filed: 1967-12-11
Abstract: 1,207,180. Piezo-electric generators. CLEVITE CORP. 11 Dec., 1967 [15 March, 1967], No. 45606/69. Divided out of 1,207,179. Heading H2A. The subject-matter of this Specification, is identical with that of the parent Specification (see Division F4) but the claims are concerned with the provision of the auxiliary spark gap between the piezo-electric generator and the main ignition spark gap. The generator is of the type described in Specification 1,124,166.
Patent GB-1524217-A (GB)
Title: Combustion chamber for a gas turbine engine
IPC: F23R3/30
Filed: 1975-11-03
Abstract: 1524217 Flame tubes MOTOREN-UND TURBINEN-UNION MUNCHEN GmbH 3 Nov 1975 [2 Nov 1974] 45659/75 Heading F1L [Also in Division F4] To improve fuel vaporization, the upstream end-wall 7 of a gas turbine flame tube 2 is surrounded by a primary air supply hood 3 defining a narrowing annular channel into which a cone of fuel 6 is injected from nozzle 4. The fuel/air mixture enters the flame tube through holes 8 partly shrouded by hood 3, forming a swirling flow P. Secondary air-flows D, E are added through the unshrouded parts of holes 8 and through holes 9 respectively. The flame tube may be of cylindrical or annular type.
Patent GB-1403822-A (GB)
Title: Tongue assembly for seat belt buckle
IPC: A44B11/25
Filed: 1973-10-01
Abstract: 1403822 Safety belt buckles ALLIED CHEMICAL CORP 1 Oct 1973 [2 Oct 1972] 45696/73 Heading E2A A tongue assembly for locking engagement with a seat belt buckle comprises a tongue 1 adapted for insertion into a buckle and a biassed tongue-ejecting member 7 attached to the tongue, the member being adapted to be placed under stress with respect to the buckle by the act of inserting and latching the tongue in the buckle, whereby, when the tongue is released it is forceably ejected from the buckle. The member 7 comprises a slidably movable member positioned for contact with the buckle 25 when the tongue is inserted therein and is biassed by a spring 14 away from the buckle upon release thereof. Portions 12, 13 of the member are substantially permanently attached one with the other and the member is slidably arranged with an opening 6 of the tongue for limited travel therein. As shown, the tongue is retained in the buckle by a spring-loaded latch 5.
Patent GB-1246143-A (GB)
Title: Polarised electromagnetic switches
Inventor: KENEZ ERNO
IPC: H01H50/16
Filed: 1968-09-26
Abstract: 1,246,143. Polarized bi-stable relays. VILLAMOS BERENDEZES ES KESZULEK MUVEK FEJLESZTESI INTEZETE. 26 Sept., 1968 [26 Sept., 1967], No. 45739/68. Heading H1N. A polarized bi-stable relay has two ceramic permanent magnets 1, 2, with like inner poles adjacent a central magnetic yoke member 4 and outer poles adjacent outer magnetic yoke members 3, 5. The yoke members 3, 4, 5 also act as contacts two of which are alternatively bridged by a contact armature 6 movable in a coil former 10 when windings 8, 9 are pulsed. Alternative arrangements (not shown) may have alternately energized windings, a plurality of armatures or multiple contacts.
Patent GB-1451840-A (GB)
Title: Stable platform structure for a laser optics
IPC: H01S3/02
Filed: 1974-10-23
Abstract: 1451840 Lasers UNITED AIRCRAFT CORP 23 Oct 1974 [26 Dec 1973] 45781/74 Heading H1C A gas laser system comprises a first and a second optical platform housing co-operatively disposed at opposite ends of the laser system and fixedly joined to one another; a first and a second support leg each of which is fixedly joined to a corresponding first and second optical platform housing, the support legs extending from the housing to a reference ground; a first and second optical platform assembly each of which penetrates the close of a corresponding platform housing, each platform assembly comprising: an upper and a lower platform assembly plate; a plurality of connection rods each of which has a first and a second end and passes completely through the platform housing, the rods being fixedly attached near the first end to the upper platform plate and fixedly attached near the second end to the lower platform; an optical bench internal to the platform housing and fixedly attached to the rods; and a reflection surface fixedly joined to the optical bench; an optical platform truss which is fixedly attached to the first and the second optical platform assemblies to form a rigid optical structure; and a plurality of vibration mounts interposed between the optical structure and the optical platform housings to support the optical structure while simultaneously insulating the optical structure from disturbances in the platform housings.
Patent GB-921413-A (GB)
Title: Improvements in and relating to the recovery of chlorohydrins
Filed: 1961-12-27
Abstract: An aliphatic chlorohydrin containing up to 4 carbon atoms is recovered from an aqueous solution by extraction with a liquid phosphate ester.  The initial solution may be that formed by the chlorination of an ethylenic compound in the presence of water. The phosphate ester preferably has a water solubility below 1 g/l at 20 DEG C., and may be diluted with inert water-insoluble liquids. Specified phosphates are tris-(2-ethylhexyl), tributyl, butyl dioctyl, tri-n-octyl, trihexyl, tridecyl, trioctadecyl, tricresyl, dicresyl phenyl, diphenyl cresyl, triphenyl, 2-ethylhexyl diphenyl, o-chlorophenyl diphenyl, bis-(p-tert-butylphenyl) phenyl, and didecyl phenyl phosphate.  Temperatures of 15-100 DEG C. may be used.  The extraction may be continuous.  The initial chlorohydrin solution preferably contains an alkali metal halide dissolved therein. Specified chlorohydrins are glycerol dichlorohydrin, and ethylene, propylene, butylene, butadiene and isobutylene chlorohydrins.
Patent GB-1504017-A (GB)
Title: Field effect device
IPC: H01L21/00
Filed: 1975-11-07
Abstract: 1504017 Field effect transistors HUGHES AIRCRAFT CO 7 Nov 1975 [6 Dec 1974] 46188/75 Heading H1K In a process of making a FET, in particular an enhancement type Schottky-barrier gate FET, Fig. In (not shown) or a MOSFET, Fig. 2d, the carrier concentration in channel region 46, Fig. 1d, is reduced by bombarding the FET structure having gate, source and drain electrodes 44, 34, 35 respectively, with photons of predetermined energy and dosage, the gate electrode permitting the protons to pass therethrough, whereas the source and drain electrodes act as masks and shield the source and drain regions from the proton bombardment. The source and drain electrodes 34, 35 diffused in a sulphur implanted GaAs island 22 are formed of gold-germanium alloy and are preferably thicker in size than the aluminium gate electrode 44. Protons with energy of about 150 Kev and density of about 5À5 x 10<SP>12</SP> protons/ sq. cm. are bombarded to reduce the carrier concentration in the island 22 from 10<SP>18</SP> carriers per c.c. to 10<SP>15</SP> carriers per c.c. so as to produce a higher resistivity channel region 46. In the MOSFET of Fig. 2d, the protons penetrate through a silicon dioxide layer (54), Fig. 2b (not shown), and a vapour deposited aluminium gate electrode layer (62), Fig. 2c (not shown), to produce the channel region 64, the source and drain regions being protected against proton penetration by thick gold, source and drain-electrodes 58, 60 deposited in an epitaxial N + region. The gate electrode is either insulated from the source and the drain contacts or is shorted to one of them. A non-inverting digital circuit, Fig. 3 (not shown), employing an enhancement type FET made as described above, and a depletion type FET, is disclosed. Both the FETs are formed in a common semi-conductor chip.
Patent GB-1331159-A (GB)
Title: Laser diodes
IPC: H01S5/12
Filed: 1971-10-06
Abstract: 1331159 Semi-conductor lasers; semiconductor devices SIEMENS AG 6 Oct 1971 [9 Get 1970] 46403/71 Headings H1C and H1K A P-N junction laser diode has a spatial periodic fluctuation of the dopant concentration in the radiation-producing zone, the maximum dopant concentration being between 10<SP>16</SP> to 10<SP>20</SP> atoms/cm.<SP>3</SP> with a preferred concentration of 10<SP>18</SP> to 10<SP>20</SP> atoms/cm.<SP>3</SP>, and the ratio of maximum to minimum concentration being at least 2 : 1 and preferably at least 10 : 1. The periodic spacing may be from 10 to 500 times the atomic interval in the lattice. As shown in Fig. 3, a semi-conductor body formed with parallel reflecting faces 36 and provided with electrodes 37 has an N-type region 32 and a non-uniformly doped P-type region 31, the periodic concentration of the P-type dopant across a light emitting zone 33 having planes 35 of maximum concentration. In a modification, Fig. 4 (not shown), the periodic concentration fluctuation is obtained along the length of the light emitting zone. The non-uniform distribution of the dopant may be produced by epitaxial deposition of semi-conductor material from the gas phase with periodic variation of the dopant concentration. Alternatively the semi-conductor may be produced by epitaxial deposition from the liquid phase by cooling, with either the cooling rate arranged to fluctuate with time or the cooling rate being so selected in dependence upon the rate of crystal growth that the resulting fluctuations in deposition correspond with the desired periodicity. A further method of producing spatially periodically fluctuating dopant concentration is to draw a semi-conductor rod from a melt, with the rod rotated either centrically or eccentrically at a rate such that in one revolution the crystal growth advances by the interval between two successive concentration maxima. A still further method is the growth of semi-conductor material in accordance with the spiral growth principle.
Patent GB-1354218-A (GB)
Title: Magnetic transducing head and drum assembly
IPC: G11B5/53
Filed: 1972-10-10
Abstract: 1354218 Supporting rotary magnetic heads AMPEX CORP 10 Oct 1972 [12 Oct 1971] 46726/72 Heading G5R A magnetic transducer head 15 having a projecting polepiece tip 29 is slid along a radially-extending slot 30 in the rotary head drum 17 of a tape recorder and then locked in position. As shown, a leaf spring 43 presses one or more heads 15 into the associated slot or slots 30 and each head is secured by a screw 44 after being located by the alignment of its curved outer surface 34 with the surface 18 of the drum or by engagement with a stop (130), Fig. 6 (not shown). The head carries a printed circuit board 83 with leads 87 connected to the head winding and to two sockets 51 which engage two pin connectors 49 mounted in the drum.
Patent GB-1215616-A (GB)
Title: Products obtained by cleaving polyphenylene ethers
Inventor: HAY ALLAN STUART
IPC: C08G65/48
Filed: 1968-10-02
Abstract: 1,215,616. Phenolic ethers; benzoic acid derivatives. GENERAL ELECTRIC CO. 2 October, 1968 [5 Oct., 1967], No. 46869/68. Heading C2C. [Also in Division C3] Polyphenylene ethers of formula where R is hydrogen, alkyl not containing a tertiary α-carbon atom, or aryl, n is 1 or more, p is 0 or 1, M is an alkali metal and A is hydrogen, -M or, when p is O,OM, are obtained by cleaving a polyphenylene ether of formula where q is at least 3, by reaction with an alkali metal adduct of biphenyl, an alkali metal adduct of terphenyl, or an alkali metal adduct of naphthalene, or, when at least one R is aryl, by reaction with an alkali metal. The adduct may be one obtained by reacting an alkali metal with biphenyl, terphenyl or naphthalene. The products may be reacted with water to regenerate polymers of lower molecular weight than the original polymer. In an example the trimeric polyphenylene ether of 2,6-xylenol is reacted with lithium-biphenyl complex, and the lithium compounds obtained are reacted with carbon dioxide and then with hydrochloric acid to obtain 2,6-dimethyl benzoic acid and 4-(4<SP>1</SP>- hydroxy - 2<SP>1</SP>,6<SP>1 </SP>- dimethyl - phenoxy) - 2,6- methylphenol.
Patent GB-1441650-A (GB)
Title: Method of and apparatus for severing vitreous sheets
IPC: B23K26/40
Filed: 1973-10-08
Abstract: 1441650 Cutting glass with laser GLAVERBEL-MECANIVER 8 Oct 1973 [12 Oct 1972] 46880/73 Heading C1M In severing vitreous or vitrocrystalline sheet material, the sheet material is scored along substantially the entire length of a required predetermined cutting line, and then thermal forces sufficient to sever the sheet are induced in the sheet by irradiating along the predetermined scored line with at least one laser beam. Two or more laser beams of different wavelength may be used. The scoring may be carried out with a conventional tool (e.g. a diamond or tungsten carbide tool), but preferably using a low scoring tool loading (e.g. less than 1 kg.). In one embodiment, a continuous glass ribbon 1 (which may be drawn or float glass emerging from an annealing lehr) is carried on rollers 2 beneath arm 3. Mounted on arm 3 is a carriage 4 which may be driven by motor 5. Mounted on carriage 4 is a scoring tool 8. A laser beam 10 produced by source 9 (e.g. a CO 2  laser of wavelength 10À6 microns) is reflected by devices 11 and 12, and focused by lens 13 on to the line scored by tool 8. The carriage 4 travels along arm 3, the glass being first scored by tool 8 and then severed by laser beam 10, and the carriage speed being controlled so that the ribbon 1 is transversely severed. In an alternative embodiment (Fig. 3, not shown), a glass ribbon moves continuously past stationary scoring tools and laser beams, marginal edge portions of the ribbon being continuously removed by successive scoring and irradiation.
Patent GB-1017706-A (GB)
Title: Improvements in the shaping of metal bars
IPC: B21H7/00
Filed: 1963-11-27
Abstract: 1,017,706. Rolling; producing leaf springs. HOESCH A.G. Nov. 27, 1963 [Jan. 25, 1963], No. 46912/63. Headings B3A and B3M. A method of forming a desired contour in a metal strip 11, as, for example, when producing leaf-springs of parabolic shape, comprises passing a horizontal strip between a pair of rolls 2 and 3, one at least of which is vertically adjustable, the position of the movable roll or rolls being controlled by the position of a sensing element 19 moving over a template 18 corresponding to the desired contour, the strip then being rolled to this contour. A carriage 16, clamped at 17 to the strip, moves, with the strip, in guides 16a to thus traverse the template 18 past the element 19. The movement of the sensing element 19 is transmitted to the roll 3 by hydraulic or other suitable means 21 and workpiece stop 12 is provided, and a roller 13 holds the strip clear of roll 2 until rolling commences. The strip 11 is reversed and its other end rolled in order to produce a workpiece tapered at each end. The template 18 may be replaced by a substantially circular cam which is rotated by movement of the strip to allow continuous profiling of a strip.
Patent GB-1222956-A (GB)
Title: Improvements in or relating to reject valves for coal mills or the like
Inventor: BAILEY GEORGE ALBERT
IPC: B65D90/62
Filed: 1967-10-17
Abstract: 1,222,956. Discharge from coal mill. P.H.I. ENG. Ltd., and TULLY ENG. CO. Ltd. 20 Dec., 1968 [17 Oct., 1967], No. 47174/67. Headings B8A and B8S. Coal deposited from a stream of hot gas from a coal mill, falls down shoot 1 from the right and passes in turn gate 2 and gate 3. The gates 2 and 3 are pivoted at 5 and 6, connected by brackets 7 and 8 to levers 9 and 10 pivoted respectively at 11 and 12 to fixed positions on the shoot. The gates are operated by two fluid cylinders applied respectively at 15 and 16. As shown, gate 2 is locked in position against the weight of coal by the right-angle disposition of the linkage. When the fluid cylinder operating at 15 moves the linkage anticlockwise the gate 2 is opened. At the same time shaft 5 operates a pneumatic valve to cause the other fluid cylinder to close gate 3. In this way the gates close alternately to provide the seal required and in their closed positions are reinforced by the linkage.
Patent GB-1022808-A (GB)
Title: Light cell
IPC: H01S5/30
Filed: 1964-11-23
Abstract: An electroluminescent device comprises a layer of N- or P-type semi-conductor phosphor material separated from a metal layer by an insulating layer, 100 <\>rA thick, through which electrons tunnel to combine with holes in the phosphor to produce light. The electron density may be high enough to produce light by laser action in which case the sides of the device may be provided with light reflecting surfaces. The metal layer may consist of aluminium or gold, the insulating layer of aluminium oxide or silicon oxide and the phosphor layer of cadmium telluride, zinc telluride, cadmium sulphide or zinc sulphide.  Electrodes are fixed to the outer surfaces of the metal and phosphor layers.
Patent GB-1447576-A (GB)
Title: Window pane guiding mechanism
IPC: E05F11/38
Filed: 1974-11-05
Abstract: 1447576 Vehicle window NISSAN MOTOR CO Ltd 5 Nov 1974 [5 Nov 1973] 47746/74 Heading E1J A vehicle-door window pane 12 which may be curved, is attached at its lower edge by screws 18, 19 to a bracket 17 which adjustably bears two guide followers 15, 16. The guide followers surround and slide upon the generally V-shaped guide member 14 which is attached to the door, at the bottom by bracket 23. The guide follower 15 has two rounded elastic projections in sliding contact with the guide 14 (one, 15d being larger than the other), the follower 16 has projections in sliding contact with the sides of guide 14. The elastic members 29, 30 act as additional guides for the pane.