baber/WOPTO huggingface dataset:
Patent GB-1312226-A (GB)
Title: Diffusion of doping substances into wafers of semiconductor  material
IPC: H01L21/223
Filed: 1971-06-18
Abstract: 1312226 Semi-conductor devices SIEMENS AG 18 June 1971 [27 July 1970] 28606/71 Heading H1K A diffusion method comprises accommodating semi-conductor wafers 3 within a tube 1 of material non-reactive with the wafers at diffusion temperatures, maintaining the wafers at the diffusion temperature in a vacuum at an inert gas atmosphere in the presence of a doping substance, the wafers being supported between the tube wall and a holding device 8, the device 8 also being of a material which does not react with the wafers at the diffusion temperature. The tube and device 8 may be of the same semi-conductor material as the wafers, e.g. silicon, or of a sintered material, e.g. silicon carbide. The device 8 may have a single recess 9 parallel to the longitudinal axis of the tube, as shown, or a plurality of such recesses, being in cross-section like a three, five or six pointed star. The device 8 may have an end plate to hold the wafers in place, which plate may also seal one end of the tube. In an alternative construction, the walls of the tube may have longitudinal recesses, the holding device being of circular or recessed cross-section.
Patent GB-1126375-A (GB)
Title: Cable fabricating method and apparatus
IPC: H01B7/08
Filed: 1966-06-27
Abstract: 1,126,375. Laminating. INTERNATIONAL BUSINESS MACHINES CORP. 27 June, 1966 [2 July, 1965], No. 28652/66. Heading B5N. A method of manufacturing a flat cable 44 comprises heating one surface of each of a pair of thermoplastic webs 38, 40 while cooling the opposite surface of each of the webs, locating the heated surfaces in opposition, positioning at least one conductor 42 between the heated surfaces, and pressing the heated surfaces together, thereby enclosing the conductor or conductors between the webs. In the apparatus shown for carrying out the method, conductor wires 42, e.g. of silver-coated copper, are fed from supply rolls, not shown, via an aligning comb 64 and cleansing wiper 66 into a slot 103 in a hot blade device 32 heated by electrical heating elements 112. The device 32 serves to heat the upper faces of webs 38, 40, fed from supply rolls, not shown, the lower faces of these webs being simultaneously chilled by contact with heat sink blocks 80, 82 of a chill device 30. The device 30 also includes slidable shoe elements 96, 98, through which a coolant, e.g. water, passes in conduits 92, 94, and which are spring-urged against laminating chill rolls 84, 86, between which the webs 38, 40 are pressed together with their heated surfaces in contact and the wires 42 between them. The wires 42 are fed between the webs on emerging from the slot 103 through a cusplike portion of the device 32. The flat cable 44 formed may pass through a cooling liquid before being wound on a take-up reel. The webs 38, 40 may be of fluoro-ethylene-propylene, polyethylene, or polyethylene coated with polyester on the outer face. Stretching of the cable may occur during its formation.
Patent GB-255702-A (GB)
Title: Improvement in safety locks
IPC: E05C1/16
Filed: 1925-11-13
Abstract: 255,702. Mortensen, F. Nov. 13, 1925. Night-latches of the type in which a spring bolt e is withdrawn by a lever a rotated by a knob on the inside of the door and by a key and connecting bar c on the outside. The connecting bar c passes through an aperture d in the lever which aperture is circular except for two narrow V-shaped projections p which are engaged by the connecting bar when it is rotated in either direction but allow the knob to be rotated without moving the bar. The knob is hollow with a conical region penetrating the lock case and is firmly attached to the lever a while the bar c enters the interior thereof.
Patent GB-617030-A (GB)
Title: Improvements in apparatus for applying adhesive strip or labels to cans and other containers
IPC: B65C1/04
Filed: 1946-09-25
Abstract: 617,030. Conveyers. COW & GATE, Ltd., and CHARLES, G. K. Sept. 25, 1946, No. 28680. [Class 78 (i)] [Also in Group XV] Cans to be sealed by adhesive tape 4 are fed one at a time by belts 2, 3. Each can falls between and is rotated about its side edges by successive freely-rotatable rollers 7 while it is fed forward by the belt 3, which is backed by spring-pressed rollers 8. The can is discharged by a conveyer 9 and the belt 3. Guide bars engage the ends of the can during its travel. In a modification, the belt 3 is replaced by a series of spring-pressed, driven rollers. Specifications 574,156 and 592,341, [both in Group XV], are referred to.
Patent GB-1458240-A (GB)
Title: Process and apparatus for distance control between articles
IPC: B23K7/10
Filed: 1974-06-28
Abstract: 1458240 Automatic control of position PRECITEC GES FUR PRAZISIONSTECHNIK and ELEKTRONIK mbH 28 June 1974 [29 June 1973] 28820/74 Heading G3R In a system for controlling the distance between two articles, e.g. cutting torch 2 and workpiece 5, in which changes in the distance causes variations in the frequency of an oscillator 4 connected to a discriminator 6 whose output represents, by the magnitude and polarity of a D.C. voltage, deviations in the distance from a set value, the frequency range of the discriminator and possibly the oscillator also is varied as a function of the said distance. The object is to extend the distance over which control is effective while retaining a high gain for small errors. The variation is effected by feedback on lines 7a, 7b from a "regulator" (amplifier) 7. In Fig. 2 (not shown) the discriminator comprises two coupled circuits which are "stagger tuned" and the bandwidth is varied by a voltage variable resistor or a uni-junction transistor connected as a damping resistor across one of the circuits. In another embodiment Fig. 4 (not shown) separate tuned circuits (9a, 9b) for the upper and lower limit  frequencies are coupled in parallel to an input tuned circuit; in this case the lower limit frequency is changed by a variable capacitance diode (24) across the appropriate tuned circuit. In addition, if the adjusting voltage reaches a predetermined value (set by diode 26) a capacitor (25) in the oscillator is adjusted to change its centre frequency. The output of the regulator adjusts the torch/ workpiece distance by an unspecified device 8.
Patent GB-189954-A (GB)
Title: Improvements in scraper for conveying loose material from the working face to cars, in mines
IPC: E21F13/06
Filed: 1921-10-31
Abstract: 189,954. Strange, C. H. Oct. 31, 1921. Scraping apparatus. - A scraper, drawn to and fro in a mine gallery by head and tail ropes 13, comprises side-plates 1 with open top, bottom and front-end A, and a back-plate 5 hinged to the side-plates at 7. The side-plates are connected by archmembers 2, 4. The tail-rope 13 is connected to the back-plate so that when the scraper is drawn towards the working face the back-plate is down and enters the loose material. A rope 15 connects the back-plate to the headrope, so that when the scraper is drawn away from the working face the back-plate is raised and pushes the material before it.
Patent GB-1078305-A (GB)
Title: Photometric device
IPC: G03B7/18
Filed: 1964-07-15
Abstract: 1,078,305. Photographic cameras. EASTMAN KODAK CO. July 15, 1964 [July 22, 1963], No.29069/64. Heading G2A. [Also in Division G1] In a photographic light measuring device, particularly one built into a camera, the measurement is automatically compensated so that incorrect exposures are not given for subjects with strong back-lighting. Back-lighting normally includes a high proportion of ultraviolet radiation compared with light reflected from objects it is desired to photograph. To compensate for it a photo-tropic element, whose transmissivity is reduced when exposed to ultraviolet light, is placed in front of all or part of the photo-electric cell in the measuring device. The figure shows a camera body 10 in which is placed a lens 14 directing light from the scene on to a photoresistive cell 16 in circuit with a battery 18 and a meter 20. In modifications a photo-voltaic cell may be used and the circuit may include automatic or semi-automatic exposure control means. Pressure on button 22 causes signal 42 to move downwards in the view-finder system 44 indicating that photo-tropic element 48 has moved out of screening housing 50 into the path of light falling on the cell 16. This will modify the cell circuit output in accordance with the amount of ultraviolet radiation received. Further depression of button 22 causes operation of the camera shutter through member 54. In a modification the photo-tropic element permanently covers all or part of the cell and the rod 40 carries a mask preventing light reaching element and cell until after initial depression of button 22.
Patent GB-353325-A (GB)
Title: An improved junction device for electric lines
IPC: H01R4/32
Filed: 1930-09-29
Abstract: 353,325. Junction boxes. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Sept. 29, 1930, No. 29165. Convention date, May 5. Addition to 353,315. [Class 38 (i).] A screw bush 6 that closes the end of a joint casing 1 by pressing a rubber plug 5 against the end of a coupling member 2 as described in the parent Specification, is extended upwardly to form a screw-threaded support 20 for a hood 23. Slots 22 in the extension 20 allow passage of the overhead lines, the bush 6 being of insulating material if the lines are not insulated.
Patent GB-154440-A (GB)
Title: Improvements in and relating to parachutes for aeroplanes
IPC: B64D17/00
Filed: 1919-11-24
Abstract: 154,440. Gray, C., and Boyajian, M. Nov. 24, 1919. Parachutes.-Relates to means for housing and opening out parachutes upon aircraft, and consists in discharging the parachute from a bowlshaped container by a rod which is projected by a cartridge and which engages the central ported part of the parachute by a yielding member, such as a disk. which is strong enough to take the force of the explosion but yields when the parachute cables are tight. A coiled spring is used for rapidly expanding the parachute when free from the container. The parachute 1 is folded into a howl 5, preferably slightly contracted at its open end and having at the bottom a barrel 7 into which fits a discharging rod 11 and cartridge 22. The upper end of the rod has a shoulder 14, upon which is the yielding disk 15 which engages the edge of the usual central vent in the parachute. A spiral spring 16 holds the parachute tight in the container, and by opening out on ejection aids in its expansion. The cartridge 22 is inserted through a side hinged breech block 19. The firing mechanism comprises a firing pin 27, which is released by a pivoted trigger 34. When one parachute is used for sustaining the aeroplane, it is placed as near to the centre of gravity as possible: if more than one is used they are arranged to have a resultant lift in the line of the centre of gravity.
Patent GB-777970-A (GB)
Title: Internal combustion engines of the compression ignition type
Inventor: HOLT GEORGE ALLEN
IPC: F02B53/00
Filed: 1954-10-11
Abstract: 777,970. Combustion chambers. RICCARDO & CO. ENGINEERS (1927), Ltd. Sept. 22, 1955 [Oct. 11, 1954; Oct. 11, 1954], Nos. 29207/54 and 29208/54. Class 7 (3). A combustion chamber D<SP>2</SP>, Fig. 1, in which the compressed air rotates is provided with a flat base F<SP>1</SP> into which the inlet G opens at an acute angle, the side wall F<SP>2</SP> adjacent the surface F<SP>1</SP> being arranged at an obtuse angle to the surface F<SP>1</SP>. The passage G is formed in a hot plug F and is rectangular in crosssection. The surface F<SP>2</SP> is frusto-conical and the upper portion D<SP>3</SP> of the chamber is hemispherical and of the same diameter as a short cylindrical wall portion F<SP>3</SP> surmounting the portion F<SP>2</SP>. In a modification the hemispherical portion D<SP>3</SP> is replaced by a frusto-conical portion, similar to the portion F<SP>2</SP>, with its widest end adjacent the cylindrical portion F<SP>3</SP>. Specifications 371,025, 431,345, 439,426, and 470,404 are referred to.
Patent GB-690680-A (GB)
Title: Circular clip for hose pipe couplings
IPC: F16L33/025
Filed: 1951-12-13
Abstract: 690,680. Band clips. OETIKER, H. Dec. 13, 1951 [June 1, 1951], No. 29208/51. Class 44 A circular clip for hose pipe couplings and connections comprises a closed metal ring a adapted to be slipped over the hose and having at least two folds b, b, spaced around the circumference and forming bulges, the sides of the bulges adjacent the periphery of the ring being approximately parallel to one another. In the arrangement shown, bulges b, b are compressed to grip a socket d within the hose by means of pincers e. The clips are preferably produced as sections of drawn profiled tubes of annealed soft tempered steel or may be made from metal strips by a drawing process.
Patent GB-544185-A (GB)
Title: Improvements in or relating to springing devices for rail-guided, truck-supported vehicles
IPC: B61F5/24
Filed: 1939-11-02
Abstract: 544,185. Railway vehicles. SCHWEIZERISCHE LOKOMOTIV-UND MASCHINENFABRIK. Nov. 2, 1939, No. 29239. Convention date, Nov. 2, 1938. [Class 103 (vi)] In a spring suspension system for railway vehicle bodies upon axle tracks particularly such in which there is no bolster or king- pin, and which permits radial movement of the tracks, the body is mounted at each side upon elliptic or other springs by a device which permits relative longitudinal direction and movement about a vertical axis, lateral but not longitudinal movement being permitted between the track and the spring. The lateral movement may instead be permitted between the body and the spring, the mounting between the spring and the track then being arranged to allow the longitudinal and pivotal movement. Laterally disposed elliptic springs 4 are suspended from the track-frame 1 by links 9 that are universally jointed to the frame. The body is mounted on each spring by longitudinal guide members 20 which bear upon blocks 18 mounted on horizontal pivots 17 on a member 15 which can turn about a vertical pivot 16 on the spring clamp 14 and which is slidable between the members 20. Longitudinal movement of each spring 4 relatively to the track is prevented while permitting lateral swinging movement thereof, by a pair of forked link members 22, 25 which are pivoted together and respectively to the spring clamp 14 and to brackets 26 on the frame 1. Longitudinal strains are transmitted from the body to the truck and the truck guided to turn about a virtual centre 19a by a linkage comprising bell-cranks 28 pivoted at 31 on the frame 1 and connected together by a link 29 and connected to the body at 30 by links 27. A modified connection of the springs to the body comprises a rocker 39, Fig. 6, pivoted at 41 to the spring clamp 14 and having a curved surface on which bears the member 42 secured to the body. The side edges of the member 39 are curved as seen in plan and are disposed between parallel longitudinal sides of the member 42, this permitting turning of the body about a vertical axis relative to member'39. In a further modification, Fig. 5 (not shown), the members 20, Figs. 1 and 3 are replaced by a pair of members that embrace the sides of the clamp 14 and bear upon rollers pivoted on a transverse horizontal pivot passing through the lower part of the clamp, the rollers having convex outer side surfaces in contact with side flanges on the members that embrace the clamp. The laminated springs may be replaced by helical springs or combinations of laminated springs with the other kinds of springs. In another arrangement, the body is suspended by the links 9 from the springs 4 and the springs are mounted upon the downwardly bent truck side frames by the devices 16, 20 disposed between these frames and the lower part of the clamps 14, the links 22, 25 being connected to the upper part of the clamps and to the body.
Patent GB-969586-A (GB)
Title: Derivatives of 4-(1-piperidyl)-butanol-1 and pharmaceutical compositions containing the same
Filed: 1962-07-30
Abstract: The invention comprises compounds of the general formula <FORM:0969586/C1/1> (wherein R represents a chlorine atom or a trifluoromethyl group), including optical isomers obtained by resolution of the racemic mixtures (e.g. by means of d-tartaric acid), and their non-toxic pharmaceutically acceptable acid addition salts, and the preparation thereof by the process of the examples, viz. reacting p-chloro- or p-trifluoromethyl-benzephenone with the Grignard reagent from 1-(g -chloropropyl)-piperidine. The analogous preparation of the compound of the foregoing general formula in which R represents a hydrogen atom is also described.  1-(g -Chloropropyl)-piperidine is prepared by condensing piperidine with 1-bromo -3- chloro-propane in toluene in the presence of triethylamine.ALSO:Pharmaceutical (including veterinary) compositions in unit dosage form (i.e. in the form of physically discrete units each containing an individual quantity of the active ingredient) comprise a pharmaceutical carrier and a compound of the general formula <FORM:0969586/A5-A6/1> (wherein R represents a hydrogen or chlorine atom or a trifluoromethyl group) or a non-toxic pharmaceutically acceptable acid addition salt thereof.  They have antiemetic activity and may take the form of tablets, powders, capsules, troches, lozenges or ampoules.  Reference is also made to the addition of the active ingredients to animals' feedstuffs or drinking water.  Specified salts include those with ascorbic, salicylic, methylene-bis-salicylic, pamoic, aspartic, glutamic and theophyllineacetic acids and 8-halotheophyllines.
Patent GB-1142047-A (GB)
Title: Improvements in or relating to high-tension electric cables
IPC: H01B3/22
Filed: 1966-07-04
Abstract: 1,142,047. Alkylbenzenes. PIRELLI S.p.A. 4 July, 1966 [17 Nov., 1965], No. 29854/66. Heading C5E. [Also in Division H1] An alkyl benzene for impregnating electric cables and having a molecular weight in the range 200 to 400 is prepared by alkylation of benzene with aliphatic chloro-derivatives and refining the product by treatment with absorbing material, the alkyl benzene having a linear or branched chain containing 9 to 11 carbon atoms, a viscosity in the range of 2 to 10 centistokes at 20‹ C. and a Marcusson flash point in the open cup higher than 100‹ C. The absorbing material may be silica gel, bleaching clay, alumina or active carbon.
Patent GB-602682-A (GB)
Title: Improvements in or relating to mining machines
IPC: E21C29/22
Filed: 1945-11-08
Abstract: 602,682. Mining-machines. LOGAN, W. A. Nov. 8, 1945, No. 29867. [Cass 68 (i)] A mining-machine includes at least one main drum mounted on vertically movable bearings and running on the mine floor, at least one yertically movable upper drum, and a jibsupporting lever, said lever being so linked to the bearings of the main drum or drum and to the upper drum or drums that the weight on said lever urges the main and upper drums apart. As shown, main drums 1 are supported in bearings 2 slidable in frame members 3, and are driven by a motor 4 within one of the drums ; upper drums 5 are mounted in a carriage 6 movable in frame members 3. Toggle links 7, 8 are pivoted to the carriage 6 and bearings 2 respectively, their joint pin 9 being guided in a slot 10 and connected to a second toggle 11, 12, the joint pin of the latter being linked to the short arm of a lever 14 pivoted at 15 ; the long arm of the lever 14 supports the weight of the cutter jibs, the weight tending to straighten the toggles and thereby press the drums 1, 5, against the floor and roof respectively. The cutter jibs may include a shearing jib, and over- and under-cutting jibs. The drums 5 may also be spring-urged upwardly.
Patent GB-1353372-A (GB)
Title: Electrophotographic copy paper and copying
IPC: G03G7/00
Filed: 1971-06-25
Abstract: 1353372 Electrophotographic copy paper XEROX CORP 25 June 1971 [29 June 1970 16 Dec 1970] 29916/71 Heading D2B An electrophotographic copy paper, which has improved scorch resistance, conductivity and strength retention under conditions of heating comprises paper-making fibres having incorporated therein a bulking material of low apparent density relative to that of the papermaking fibres, in a proportion of up to 10 per cent by weight of the paper-making fibres and has as a surface size thereon a composition comprising a binder, a salt other than clay in an amount of from 1 to 50 per cent by weight based on said binder and clay in an amount of from 38 to 50 per cent by weight of the dry solids content of the composition, the mixture of salt and clay not exceeding 60 per cent of the dry solids content of the total composition. Specified bulking materials are hollow spheres of thermoplastic material, foamed starch and cellulosic materials angulate fibrous fragments of foamed aminoplast e.g. urea/ formaldehyde resins, hollow glass or ceramic material and metal microspheres. Specified binders are starch, ethylated starch, polystyrene latex and polyvinyl alcohol. Specified metal salts are magnesium, zinc and sodium sulphate. The paper having bulking material incorporated therein may be subjected to mechanical rubbing e.g. with cotton fabric prior to sizing.
Patent GB-1216942-A (GB)
Title: Improvements in and relating to oil tanks with filter inserts
IPC: B01D29/11
Filed: 1968-06-24
Abstract: 1,216,942. Filter. ZAHNRADFABRIK FRIEDRICHSCHAFEN A.G. 24 June, 1968 [7 July, 1967], No.29950/68. Heading B1D. An oil filter in a hydraulic steering circuit comprises a housing whose cover 11 is retained by nut 10 screwed on to bolt 9 and which encloses an annular fitter element 2, whose lower end is located around fixed plate 3 and whose upper end is closed by an assembly 5, 6, 7 incorporating a by-pass valve 6. A compressible annulus 8 urges the tube 7 downwards, holding cap 5 on to element 2 and holding element 2 on to the housing floor. Flow is into the housing through eccentrically placed inlet 17 and outwards through element 2. When element 2 clogs, the pressure difference deforms diaphragm 6 upwards to allow bypassing. When cover 11 is removed, assembly 5, 6, 7 is slid off bolt 9 to enable the element 2 to be replaced.
Patent GB-1092280-A (GB)
Title: Improvements in seats, particularly motor vehicle seats
IPC: A47C1/025
Filed: 1966-07-05
Abstract: 1,092,280. Adjustable seats. FRITZ KEIPER. July 5, 1966 [July 17, 1965], No. 30175/66. Heading A4J. In a vehicle seat having an angularly adjustable back-rest freely swivelable on one side and provided, on the other side, with an adjustable hinge-fitting, as disclosed in Specification 1,062,678, a hollow tube connecting the uprights of the backrest, at the pivot axis, contains a return spring, preferably for urging the back-rest into the forward folded position. The spring may be of hair-pin or coiled form.