baber/WOPTO huggingface dataset:
Patent GB-434675-A (GB)
Title: Improvements in or relating to tuning systems for wireless receiving apparatus and the like
IPC: H03J3/24
Filed: 1934-04-06
Abstract: 434,675. Wireless receiving-apparatus. JOHNSON LABORATORIES, Inc., 609, West Lake Street, Chicago, U.S.A.-(Assignees of Polydoroff, W. J.; 420, Fullerton Parkway, Chicago, U.S.A.) April 6, 1934, No. 10464. Convention date, April 22, 1933. [Class 40 (v)] [See also Group XXXVI] In a tuning system employing fixed condensers and inductances varied by movement of a magnetic core, adjustments to ensure ganging comprise (1) varying the condensers when the cores are set for minimum inductance ; (2) adjusting the relative positions of each coil and core when the cores are in a position intermediate their extreme positions ; and (3) adjusting gaps in the cores to vary the permeability when the cores are set for maximum inductance. Preferably, the adjustments are performed in the order (3), (1), (2). The coils 13 are mounted by threaded rods 6 onto a base plate 1 carrying " squash " condensers 4, shields. 3 enclosing each coil and its associated condenser. Hexagonal-section washers 5 and springs 10 on the rods 6 allow the coils to be longitudinally adjusted without rotating. The cores 39 have plugs 56 separated by an adjustable air-gap 52, and are all carried on a movable plate 16. In a modification for superheterodyne receivers, the inductance tuning the local oscillator co-operates with a core 39a, Fig. 8, of shape different from that of the cores 39. The plate 16 is moved by rotating a shaft 24, Fig. 1, which carries a wheel 28, Fig. 3, bearing on and moving a rod 19 jointed to the plate 16. To ensure longitudinal movement of the plate, it carries guide tubes 21, Fig. 2, accurately telescoping with guide rods 15 fixed to the base 1. A suitable indicator comprises an arm 44, Fig. 5, moving over a scale 48, and pivoted at 24 and having a slot 45 co-operating with a pin 46 on an extension 47 of the plate 16. The wheel 28 and rod 19 may be toothed or the plate 16 may be threaded onto a screw shaft 49 rotated by a knob 50. Specifications 366,475 ; 403,368, 403,426, 405,623, and 436,428, [all in Group XXXVI], are referred to.
Patent GB-1459272-A (GB)
Title: Optical projection and scanning apparatus
IPC: G03F9/00
Filed: 1974-03-08
Abstract: 1459272 Projection printing PERKIN-ELMER CORP 8 March 1974 [9 March 1973] 10484/74 Heading G2A A wafer 262 having a coating of photo-sensitive material is progressively exposed to a mask 222, while mask and wafer are carried by a carriage 200, by forming an arcuate illuminated area 223 on the mask, using an arcuate lamp (502), Fig. 5 (not shown), projecting an image of the arcuate area on the wafer using a unity magnification catoptric system 110, illustrated in Fig. 18, registering mask and wafer (using non-actinic radiation) and pivoting the carriage about an axis 210 so that the projected image of the arcuate area moves relatively over the surface of the wafer. The catoptric system consists essentially of a concave mirror 111, a convex mirror 112, mirrors 111 and 112 having the same centre of curvature C which lies on the optical axis 118, and a mirror array comprising a single plane mirror 701 and a pair of plane roof mirrors 116, 117 arranged so that the mask and wafer are optically situated in a common plane through point C (but being physically situated in planes parallel to axis 118) and the illuminated arcuate area and its image are optically situated with a common centre of curvature at point C. Mirror array 110 is attached to a plate (131) Fig. 6 (not shown), which is capable of three separate small closely controlled movements with respect to a fixed plate 130 carried by the head 102 of a pedestal 100, to rotate mirror array plate in its own plane,about a vertical axis and about a horizontal axis. Carriage 200 is supported by crossed flexure blades (216 and 218) Fig. 8 (not shown), from a bar 104 attached to pedestal 100, allowing a small angular movement by means of a friction drive 214 attached to head 102. After a wafer and mask have been applied to respective stages 260 and 220 on carriage 200 by respective handling mechanisms 400 and 450, their relative positions are examined in a binocular variable magnification microscope eye-piece 600 with the aid of the catoptic system and alternative low magnification element 650 (Fig. 3) and high magnification element 700 Fig. 4, (not shown), the image being examined through mirror 112 for coarse adjustment and mirror 701 for fine adjustment (the mirrors being partially transparent). Coarse adjustment of the mask stage (220) Fig. 9 (not shown) and coarse and fine adjustment of the wafer stage 260 Fig. 12 (not shown) are effected with the aid of control panel 750, each adjustment involving three separate movements, horizontal, vertical and rotary.
Patent GB-1390451-A (GB)
Title: Manufacture of metallized shaped bodies of macromolecular material
IPC: C23C18/34
Filed: 1972-03-07
Abstract: 1390451 Electroless plating HOECHST AG 7 March 1972 [9 March 1971] 10520/72 Heading C7F Prior to electroless plating with e.g. Cu or Ni a substrate is coated with a solution or dispersion of p.t.f.e. containing a noble metal salt e.g. the chlorides of Pd, Pt or Au or silver nitrate, and the coating heated to remove the liquid component. The coating may be sintered before or after plating, and it may be removed from the substrate. The liquid may be water, acetone or butanone, and it may include a wetting agent, e.g. dodecyl  benzene sulphonate. The coating may be activated with a reducing agent before plating. The electroless bath may contain sodium hypophosphite, sodium hydride, nitrogen diethyl borane, formaldehyde, hydrazine hydrate, and sodium bisulphite as reducing agent, and telluric acid as stabilizer. Copper plating baths may contain saccharin, and Ni baths lactic and succinic acids. The support may be glass, steel, Al, unglazed ceramics, cotton or polyester or a polyimide film. The metal plating may be subsequently coated with plastics or electro-plated with Ni.
Patent GB-692598-A (GB)
Title: Improvements in and relating to rolling shutters
IPC: E06B9/58
Filed: 1951-05-04
Abstract: 692,598. Roller shutters. GIBSON & CO., Ltd., A. L., and ROSS, W. H. L. Feb. 25, 1952 [May 4, 1951], No. 10552/51. Class 20(iii) A roller shutter of the interlocking slot type has a guard member secured to its lower end which projects on both sides of the shutter to prevent damage to the slots of the shutter should heavy objects bump into the closed shutter, means being provided to anchor the guard member to the floor. As shown, the guard member consists of L-members 3 and 4 and transverse bars 5 which are connected to the members 3 and 4 and also to the shutter 1. The members 3 and 4 have studs 6 which project into recesses 7 when the shutter is closed and the shutter may also carry a plate 8 which engages in a slot 9.
Patent GB-254434-A (GB)
Title: Improvements relating to sheet metal brackets
IPC: A47B96/06
Filed: 1925-04-23
Abstract: 254,434. Tipper, A. D., Taylor, F., and Tipper, J. F., (trading as Tipper & Co., J.). April 23, 1925. Brackets.-Relates to shelf &c. brackets of the kind made by bending a sheet metal blank to form a right angle member a with a hollow stiffening rib j the ends having screw holes b reinforced by hollow bosses i. According to the present invention the bracket is formed in two stamping operations and the bosses i are continuous with the rib j. In the first operation the blank is pressed between tools to form the bosses i and the adjacent parts of the rib j, a second similar operation between V-shaped tools bending the blank to the required right angle form and completing the intermediate portion p of the rib j. Specification 23059/09 is referred to.
Patent GB-833145-A (GB)
Title: Improvements in or relating to fabrics
IPC: D06Q1/02
Filed: 1958-04-02
Abstract: Patterns are produced on a fabric containing elastic crimped synthetic yarns (e.g. nylon) by temporarily releasing the crimp, setting the yarn in local areas, and restoring the crimp in the remaining areas.  The crimp may be released by stretching and restored by relaxing followed by washing and/or steaming.  The local setting may be effected by treating the fabric pattern wise, before or after stretching, with a hardenable composition and then heating the fabric while stretched to harden the composition. Suitable compositions include aqueous solutions of urea-formaldehyde or melamine-formaldehyde precondensates or ethylene urea resins, and organic solutions of etherified urea-formaldehyde or melamine-formaldehyde resins or mixtures thereof.  The fabric may be impregnated before stretching with a water-soluble finishing agent, e.g. starch or polyvinyl alcohol, and dried after stretching to fix the fabric temporarily in stretched condition.  After local permanent fixing the finishing agent is washed out.  When such a finishing agent is used, the local permanent fixing may be effected by rendering the finishing agent insoluble in water, e.g. by treatment with an aqueous solution of formaldehyde containing an acid catalyst and then heating to above 100 DEG  C.  After treatment the locally fixed areas are slightly stiffened and translucent, while the background retains an opaque character.
Patent GB-1001679-A (GB)
Title: Improvements in or relating to girders and beams
IPC: E04C3/04
Filed: 1963-03-19
Abstract: 1,001,679. Girders. J. MARCHAND. March 19, 1963 [March 20, 1962], No. 10728/63. Heading E1K. A channel gider is provided with protusions 4 having a face 6 parallel to the web 12 on the opposite side to the flanges 14, 16 by pressing out the web 12. A composite girder is formed by welding the faces 6 of two channels together and connecting the ends by U-shaped spacers 9. The flanges 14, 16 and 13, 15 of two composite girders may be welded together to form a larger gider. The channels, may also be welded together by means of pressed out flat topped domes on the same side as the flanges, the flanges of the channels either overlapping or being bent inwards to face each other. When subject to high temperatures, gaps are left between flanges by welding them together by means of joggled parts 17 and an outer flange is cut away in a sinusoidal curve so that the two flanges have equal exposed surfaces.
Patent GB-274945-A (GB)
Title: Improvements in and relating to ladies' handbags
IPC: A45C13/40
Filed: 1926-04-24
Abstract: 274,945. Serpell, S. A. April 24, 1926. Hand and like bags; parcel carriers.-A handbag, music bag, or the like is provided with means for holding an umbrella, situated either at the inside of the fold, as in the form shown, or at the inside of the closing flap in the case of a music bag. The means shown for holding an umbrella 10 comprise a tapered, open-ended, waterproofed lined pocket or sheath 9 and a safety strap with a snap-fastener 12. The sheath need not, however, be tapered, and may be provided with springs to grip the umbrella, may have one end closed, or may be in two or more portions. In place of a sheath bands, straps, clips or other fastening means may be employed. An additional sheath may be pivotally mounted on the exterior of the bag to hold a wet umbrella. The bag shown has at one side a pocket 3 containing a mirror 4 and a pocket 5 for a writing tablet 6, both arranged over a long pocket adapted to hold a tight-weight mackintosh. A purse pocket is provided on the opposite side of the bag.
Patent GB-784635-A (GB)
Title: Chromium-containing monoazo dyestuffs
IPC: C09B45/16
Filed: 1954-04-13
Abstract: The invention comprises chromium complexes of dyestuffs free of sulphonic acid groups of formula <FORM:0784635/IV (b)/1> where A is the residue of a coupling component coupled o to an OH group, R and R1 are H, alkyl or substituted alkyl and R2 is alkyl.  The dyestuffs are made by coupling appropriate diazotized 1 - amino - 2 - phenol - sulphonamides with coupling components and chroming the product. Specified coupling components are 1-phenyl and (31- and 41-nitro-, 21-chloro- and 21,51 - dichlorophenyl) - 3 - methyl - 5 - pyrazolones, 2-naphthol, 6-bromo-2-naphthol, 1-acetylamino - 7 - naphthol, 3 - hydroxydiphenylene oxide and 2-hydroxycarbazole. 1-Amino-2-phenol - 5 - sulphomethylaminoethane sulphonamide and sulphomethylamide are specified diazo components.  Examples are provided illustrating the preparation of the dyestuffs and their use in dyeing wool in black, orange and blue shades, additional components used to certain of those specified above being 1-amino-2-phenol - 5 - sulphomethylaminoethane sulphodimethyl-, ethyl-, diethyl-, b  - hydroxyethyl-, di - b  - hydroxyethyl-, methylethyl- and methyl- and ethyl - b  - hydroxyethyl-amides. Specifications 745,641, 746,944 and 758,016 are referred to.
Patent GB-1527436-A (GB)
Title: Production of glass articles
IPC: C03B37/014
Filed: 1976-03-18
Abstract: 1527436 Doped glass articles P M B DE MACEDO and T A LITOVITZ 18 March 1976 [18 March 1975 26 Nov 1975] 10935/76 Heading C1M A glass article, such as a waveguide or preform therefor, having a desired refractive index distribution is made by precipitating a dopant in the interconnected pores of a matrix (e.g. acid leached borosilicate glass) without substantial evaporation of the dopant solvent, drying after initiation of the precipitation, regulating the rate of heating to remove solvent and, where necessary decomposition products, from the pores to give the desired dopant distribution, and collapsing the porous matrix to solid form. During the leaching of the initial glass the leach acid may be cooled to precipitate boric acid. The dopant may be precipitated by thermal and/or chemical treatment, by solvent exchange or by common ion effect. The doped matrix may be treated with solvent to provide an undoped surface layer and the removal of solvent may be at least initially under vacuum.
Patent GB-1507774-A (GB)
Title: Photosensitive element and composition for producing photoresists
IPC: C23C18/16
Filed: 1976-03-18
Abstract: 1507774 Dibasic acid esters HITACHI CHEMICAL CO Ltd 18 March 1976 [11 April 1975] 10947/76 Heading C2C [Also in Divisions C3 and G2] Compounds of the formula are prepared by (i) reacting an appropriate dicarboxylic anhydride with a hydroxy-ester of the formula HO-R<SP>1</SP>-O-OC-CR<SP>2</SP>=CH 2  and (ii) reacting the product formed containing a free carboxylic acid group with ethylene oxide or a suitable derivative thereof. In the above formulµ Z is the residue of a cyclic dicarboxylic anhydride, R<SP>1</SP> is C 1 -C 3  alkylene, R<SP>2</SP> is H or methyl, and R<SP>3</SP> is H, methyl, ethyl or -CH 2 X (X=Cl or Br).
Patent GB-504155-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D65/42
Filed: 1938-05-09
Abstract: 504,155. Adjusting internal shoe brakes. BUDD WHEEL CO. April 9, 1938, No. 10962. Convention date, April 9, 1937. [Class 103 (i)] The shoes of an internal expanding brake are independently manually adjustable at the anchors by blocks 19 having inclined faces engaging the ends of the studs 13 on which the brake shoes 27 anchor. The studs 13 are slidably received in a housing 9 which comprises also a sleeve 14 carrying two adjusting screws 17 bearing upon the end faces of the two semicylindrical blocks 19. The studs 13 have inclined ends engaging in slots in the blocks 19 having inclined bottoms. The blocks 19 bear against each other by their flat faces and may thus be independently adjusted by the studs 17. The blocks 19 have a diametral ridge 20 which interlocks with serrations on the ends of the screws 17.
Patent GB-1502198-A (GB)
Title: Propping fractures in geological formations and agents therefor
IPC: E21B43/267
Filed: 1976-03-18
Abstract: 1502198 Fracturing formations INSTITUT FRANCAIS DU PETROLE and SOC EUROPEENNE DE PRODUITS REFRACTAIRES 18 March 1976 [19 March 1975] 10963/76 Heading E1F A propping -agent for fractures created in the wall of a well comprises a granular product containing, on the basis of the oxides, up to 85% by weight of zirconium oxide, and silica in a weight ratio of zirconium oxide to silica of at least 1.5:1. Alumina in a weight ratio of alumina to silica of less than 1.5:1, sodium oxide in a weight ratio of sodium oxide to silica of less than 0.04:1, magnesium oxide in a weight ratio or magnesium oxide to silica of less than 1:1. and calcium oxide in a weight ratio of calcium oxide to silica of less than 1.45:1 may be present in the propping agent. The propping agent may be in the form of spheres and at least two different granulometries of the propping agent may be injected successively. The propping agent may also contain additional propping agent which are injected into the well either simultaneously or successively.
Patent GB-1492505-A (GB)
Title: High-power vane-type magnetrons
IPC: H01J25/58
Filed: 1976-03-18
Abstract: 1492505 Magnetrons ATOMIC ENERGY OF CANADA Ltd 18 March 1976 [7 Aug 1975] 10965/76 Heading H1D In a high-power, strapped, multicavity vanetype magnetron, the straps-two pairs, 20a, 20b and 21a, 21b, as shown in Fig. 4-pass through internal apertures formed in the vanes, a coolant channel 40 being provided directly behind the vane tips. The secondary emissive cathode (34, Fig. 3, not shown) of platinum or borium tungstate, is provided with coolant channel (38), and a tungsten starter filament (35) ,the whole cathode structure being supported by an alumina sleeve (14, Fig. 1, not shown). The output is via a slot in one of the resonant cavities, a ridged waveguide section 25 (Figs. 1 and 2, not shown), and a waveguide window (26) provided with a coolant conduit (30), non- uniformity of loading of the anode structure being reduced by the provision of a compensating short between adjacent vanes at an empirically determined point around the structure.
Patent GB-794867-A (GB)
Title: Instrument aid for aircraft radio navigation
IPC: G01S1/02
Filed: 1956-04-11
Abstract: 794,867. Aircraft navigation instruments. LEAR, Inc. April 11, 1956 [April 11, 1955], No. 10981/56. Class 4. [Also in Group XL(c)] An aircraft radio navigation instrument responsive to omnirange signals comprises a bearing selector rotatable to place a desired course bearing marking opposite a marker, a pointer pivoted at one end and adapted to rotate to the right or left of the marker to indicate deviation of the aircraft from the desired course, and an indicator adapted to present one or other of contrasting indicia according as to whether the aircraft is flying towards or away from the omni-range beacon. In Fig. 1, the instrument mask 30 is formed with apertures 34, 36 separated by a marker 38, with which the desired course heading on scale 12 is aligned by rotating knob 18. An aircraft outline 32 is inscribed on the mask, and is formed with windows 40 and 42 and a slot 44. A needle 68 with a head 70 passes through slot 44 and is controlled by leftright D.C. signals from an omni-range receiver, so that when the aircraft is on the required heading from the beacon, the head 70 is centred on the window 40. Coloured pads 112, 114 are placed on the mask 30 to facilitate observation of head 40. Further signals from the omnirange receiver actuate a " TO "-" FROM " indicator flag to position one or other indication in window 42 according to the polarity of the signals. When the signals received are too weak to be reliable, the " TO "-" FROM " indicator is automatically put in a neutral position, and an " OFF " indication is placed in window 42 by a second indicator flag.
Patent GB-871847-A (GB)
Title: Improvements in means for storing mechanical energy
Filed: 1959-04-01
Abstract: 871,847. Rubber springs. JARRET, J., and JARRET, J. April 1, 1959 [July 9, 1958], No. 11030/59. Class 108(3). A spring device comprises a body 1 of vulcanised elastomer enclosed in a rigid metallic casing 2. A plunger 3 is slidable in an opening to vary the effective internal capacity of the casing. The ratio of the crosssectional areas of the body of the elastomer and the plunger lies within a range of from 3 to 1 to about 30 to 1. A block of solid lubricant 5, e.g. molybdenum disulphide or graphite, is provided. A metal seal 6, may or may not be provided. The casing 2 may be made of reinforced plastic. Specification 737,405 is referred to.
Patent GB-250764-A (GB)
Title: Improved powder puff
IPC: A45D33/34
Filed: 1925-04-29
Abstract: 250,764. Harris, F. A. P., and Mousley, F. April 29, 1925. Handkerchiefs. - A handkerchief A, to one side of which the puff B is attached is secured around the puff by a ring C of elastic, bone, wood, or metal. The Provisional Specification describes a fastening ring secured in position by a pressstud.
Patent GB-1109708-A (GB)
Title: Transporting and storing device for products carried by a carrier member, more particularly products hung on the carrier member
IPC: B65G17/20
Filed: 1966-03-14
Abstract: 1,109,708. Endless conveyers. ESSICCATOI FAVA S.p.A. 14 March, 1966 [27 March, 1965], No. 11130/66. Addition to 1,024,008. Heading B8A. [Also in Division A4] A conveying and storing device comprises two parallely spaced endless chains 6, Fig. 1, running in guiding and supporting channels 2, 4 and a trolley formed by two opposite links 12, one in each chain, having two lower rollers 20, Fig. 4, rolling on the guiding channel and a third upper roller 21 for co-operating with inclined planes at the foot of inner legs 29 on a frame 26 supporting articles to be stored between the chains, whereby movement of the chains allows the third roller to convey the frames towards the left along the supporting channel in virtue of its action on the inclined planes which lift an outer frame leg 28 off an upper part of the channel. The outer leg drops back on to the channel when the roller 21 leaves leg 29 on the trolley abutting an end stop 30.
Patent GB-546073-A (GB)
Title: Improvements in or relating to electric couplings
IPC: H01R33/94
Filed: 1941-09-02
Abstract: 546,073. Two-part couplings. GOLDSTAUB, H. H. Sept. 2, 1941, No. 11195. [Class 38 (i)] A bayonet plug for making connection to a lampholder comprises an insulating body A having threaded holes B running from one end to meet a central recess A<1> at the other end and screws C inserted in the threaded holes so as to grip flexible leads inserted in the recess, the heads of the screws forming the contact studs. A transverse rod D is moulded or pressed into the body to form the bayonet pins. An extension of the recess A<1> may be provided to enable an earthing wire to be connected to the rod D. A cord grip such as a screw plug A2, or a transverse screw may be provided in the recess A<1>.
Patent GB-774835-A (GB)
Title: Process for the preparation of terephthalic acid
Filed: 1955-04-19
Abstract: Terephthalic acid is prepared by converting p-di-isopropylbenzene liquid to intermediate oxidation products by reacting with molecular oxygen at elevated temperatures with no catalyst added and then converting the intermediate oxidation products to terephthalic acid by reacting with molecular oxygen in the presence of a heavy metal catalyst and a carboxylic acid of 1-4 carbon atoms at 150-275 DEG  C. and 100-1500 p.s.i.g. to maintain a liquid phase of the carboxylic acid.  The catalyst may be a manganese carboxylate (e.g. manganese acetate or cumate). 0.5 to 10 parts of carboxylic acid of 1-4 carbon atoms may be used per part by weight of intermediate oxidation reaction mixture.  The intermediate oxidation products may be further oxidized as a whole or may be separated into solid and liquid products and these oxidized separately.  The manganese salt of p-isopropylbenzoic acid is prepared by dissolving the acid in caustic soda solution and adding manganese acetate.