baber/WOPTO huggingface dataset:
Patent GB-1103321-A (GB)
Title: Method of modifying a junctionless, non-rectifying solid state switching device
IPC: H01L29/00
Filed: 1965-03-18
Abstract: 1,103,321. Solid state switches. DANFOSS A/S. 18 March, 1965 [19 March, 1964], No. 11586/65. Heading HlK. Symmetrical junctionless polycrystalline switches capable of being switched between high and low resistance states, which as initially produced are in a low resistance condition from which they cannot be switched by normal operating voltages, are brought to a high resistance state by passing a sufficiently large current pulse through them. The method is applicable to switches of compositions such as 67À5% Te, 25% As, 7À5% Ge by weight, which switch to a low resistance state at a certain threshold voltage and revert when the current falls below a holding value, and to memory elements, e.g. of 90% Te, 10% Ge which switch to a low resistance condition at a certain threshold voltage, and revert to high resistance above a certain current. The required current which is derived from a low resistance source, e.g. a discharging capacitor, is determined by experiment.
Patent GB-851671-A (GB)
Title: Improvements in or relating to the esterification of terephthalic acid in presence of metal oxidation catalyst
Inventor: WATSON ROSS OLIVER
IPC: C07C51/265
Filed: 1959-04-06
Abstract: A process for esterifying an oxidate containing terephthalic acid and a metal oxidation catalyst with methanol, wherein said oxidate is preheated to a temperature within the range 200-350 DEG C before esterification, is characterized in that from 0,01 to 1,0 parts of methanol per part of oxidate, by volume, are added to the oxidate prior to the preheating thereof.  Metal oxidation catalysts specified are chromium, manganese, cobalt, iron, nickel vanadium, molybdenum, tungsten, tin and cerium in the form of salts of aliphatic carboxylic acids or aromatic acids.  Starting materials mentioned for the oxidation step are xylenes, toluic acid esters, p-toluic acid and p-diisopropylbenzene.  The amount of methanol added is preferably 0,01 to 0,2 parts per part of oxidate by volume.  Specification 758,423 is referred to.
Patent GB-1344739-A (GB)
Title: Preparation of chloramphenicol analogues
IPC: C07C233/00
Filed: 1971-04-27
Abstract: 1344739 Chloramphenicol analogues KYOWA HAKKO KOGYO KK 27 April 1971 [28 April 1970 17 Dec 1970] 11683/71 Headings C2C and C2A D - Threo - 2 - propionamido - 1 - p - nitrophenyl - 1,3 - propanediol, D - threo - 2 - isobutyramido - 1 - p - nitrophenyl - 1,3 - propanediol, D - threo - 2 - acetamido - 1 - p - nitrophenyl-1,3-propanediol and/or acetyl derivatives thereof are prepared by culturing a microorganism selected from the genera Arthrobacter, Corynebacterium and Nocardia in a nutrient medium containing at least one assimilable carbon source under aerobic conditions.
Patent GB-1123023-A (GB)
Title: Improvements in spark gap electrodes
Inventor: SCOTSON ERIC ANTHONY
IPC: H01T4/14
Filed: 1965-03-19
Abstract: 1,123,023. Spark gaps for lightning arresters. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 28 Feb., 1966 [19 March, 1965], No. 11699/65. Heading H2H. Each electrode 1 of the spark gap of an arc extinguishing device, e.g. a lightning arrester, comprises a composite member formed of two mechanically and electrically connected metallic plates 2, 3, plate 3 providing a spark surface 7 and having a greater resistance to are erosion than the plate 2, which provides an arc-running surface 6 and has better arc-run properties than the plate 3. The materials of plates 2, 3 may be respectively magnetic stainless steel and a sintered copper-tungsten mixture.
Patent GB-513741-A (GB)
Title: Improvements in and connected with the driving arrangements of motor road vehicles
IPC: B60K5/00
Filed: 1938-04-19
Abstract: 513,741. Motor vehicles. DAIMLER-BENZ AKT.-GES. April 19, 1938, No. 11722. Convention date, April 20, 1937. '[Classes 79 (ii); 79 (iii) and 79 (iv)] In sports cars and other motor vehicles having a low set seat or seals between the engine and axle gearing carried by the vehicle frame, the propeller shaft is disposed laterally alongside the seat to leave the floor space in front of the seat clear. The engine and axle gearing may be mounted on the frame at the level of the seat whilst the seat may be at frame level and below the level of the wheel centres. The engine may be in its normal position and geared to the propeller shaft, or the engine and propeller shaft may be in line and obliquely disposed as shown. In the form shown, the drive is transmitted through bevel gearing g to a transversely arranged gearbox f rigidly or resiliently secured to the frame a behind the seat extending to the centre where the drive is transmitted. with or without a differential to jointed axle shafts h. The rear wheels may be carried by swinging half axles or, as shown, by a rigid axle k with a rearwardly extending arm or stay l pivoted to the rear end of the frame by a ball joint m, as described in Specification 457,147, the centre of the axle carrying shoes or rollers n engaging a guide flange extending upwardly from the gearbox. The front wheels are carried by parallel motion links y, the arrangement providing an axis of oscillation for the car which passes through a point on the ground level between the front wheels and through the rollers n, the car having a low centre of gravity located below the wheel centres and near to such axis. The gear drive consists of a changegear shaft driven by bevel wheels from the driving-shaft c, above which is located an intermediate shaft, both these shafts being below the wheel-axle shaft h and, if desired, located' forward or rearward thereof. The intermediate shaft drives the wheel shaft either directly or through a differential, the former arrangement allowing of more central distribution of the weight and the latter of more lateral disposition of the driving shaft. Cardan joints v are in each case provided on the wheel shaft. Specification 457,148 also is referred to.
Patent GB-724475-A (GB)
Title: Improvements in feeding apparatus for dry materials
IPC: B65G65/46
Filed: 1953-04-28
Abstract: 724,475. Screw conveyers. WALLACE & TIERNAN, Inc. April 28, 1953 [April 29, 1952] No. 11731/53. Class 78 (1). Material is discharged from a container by a screw having a rotary and a reciprocating motion which is driven positively both towards and away from the discharge opening and is rotated simultaneously so that it threads itself into the material as it moves away from the discharge opening and pushes the material when the movement is reversed. In order to provide a continuous discharge, the screw 16 has sections 18, 19 of opposite hand and the hopper 10 has outlets 14, 15. The screw is connected to a driving shaft 20 which is slidably mounted in a stationary member 28 and is driven through gears 30, 31 by a shaft 32. A cylindrical cam 24 mounted on the shaft 20 has a cam track 25 which is engaged by a pin 26 rotatably mounted in the part 28.
Patent GB-1210627-A (GB)
Title: Axially movable steering column
IPC: B62D1/18
Filed: 1969-03-05
Abstract: 1,210,627. Steering columns. BENDIX CORP. 5 March, 1969 [11 March, 1968], No. 11733/69. Addition to 1,096,804. Heading B7H.  In an axially adjustable and/or collapsible steering column comprising two shaft parts 12, 16, one of which has a hexagonal cross-section and the other a corresponding hexagonal bore, and having as described in the Specification of the main patent balls 18 disposed in bores 20 in the shaft part 12 and urged into engagement with the shaft part 16 at an off-centre location by pre-loaded rubber blocks 22 so as to rotate the shaft parts relative to one another and thereby eliminate torsional play therebetween and create a predetermined frictional resistance to telescoping of the shaft parts, there extends from each bore 20 a drilled passage 26 which vents trapped air or grease from the bore and provides for extrusion of excess rubber from the block 22 into the passage to obtain more predictable pre-loading of the block. Each ball may be bonded to its rubber block 22 to form a unitary element. For a given size of bore 20 and rubber block 22 the pre-load in the block is inversely proportional to the diameter of the passage 26.
Patent GB-423144-A (GB)
Title: Improvements relating to stop valves
IPC: F16K1/48
Filed: 1934-04-19
Abstract: 423,144. Valve components. LAWSON, R. G., Dalston Road, Workington, Cumberland. April 19, 1934, No. 11776. [Class 135] A stop-valve of the kind provided with a reversible valve member has this member formed with two buttons 6, 6<a>, one located outwardly of each face and each so shaped as to be engageable with the usual horseshoe type of holder 7 formed in the end of the valve spindle 1. The seat 3 is preferably also made reversible and has a passage of Venturi shape adapted to co-operate with the disengaged button to restrict the flow during opening and so protect the closure faces from scoring.
Patent GB-1087533-A (GB)
Title: Improvements in or relating to extraction apparatus
Inventor: AUCHAPT PIERRE
IPC: B01D11/04
Filed: 1966-03-17
Abstract: 1,087,533. Liquid-liquid extraction. COMMISSARIAT A L'ENERGIE ATOMIQUE. March 17, 1966 [March 17, 1965], No. 11832/66. Heading B1F. A liquid-liquid extraction apparatus comprising a plurality of compartments (e.g. 1, 2, 3, 4) separated by vertical partitions (5), each compartment containing at least one surface (rotary discs 10) rotatable through a lower and a higher part of said compartments to effect contact of liquid phases therein and each partition having at least two apertures therein, one at the lower point (15) and one at the higher point, is characterised by the provision in said apertures of means (worms 17, 18) to drive a liquid therethrough so as to effect counter-current movement in said apparatus. In the illustrated apparatus, to which numerals refer, the apparatus is in the form of an open trough, heavier liquid is poured into compartment 1 and lighter liquid into compartment 4, lighter liquid being withdrawn at 24 and heavier liquid through adjustable overflow device 25, at 32. The discs and worms are mounted on shafts 7, 19, 21, and driven by a common device. The discs 10 have apertures and notched peripheries (Fig. 3, not shown).
Patent GB-580233-A (GB)
Title: Means for simultaneously swaging and soldering necks of metal cans
IPC: B23K1/18
Filed: 1944-06-23
Abstract: 580,233. Making hollow-ware. IRVING, M. M. O. June 23, 1944, Nos. 12011/44, 21060/44 and 6030/45. [Classes 83 (ii) and 83 (iv)] Soldering; tube expanders.-In joining tubular metal elements, such as funnel shaped parts to the pouring or filling apertures of cans or drums for containing paraffin, paint, &c., or sheet metal funnels, the parts are nested one within the other with solder applied at the junction and a heated plunger is introduced into the inner element to expand it and simultaneously solder it to the outer element. The can is formed with a flanged neck over or into which the funnel part is applied. The parts are assembled and placed on a plate 25 resting on spaced yielding members such as rubber blocks 26 carried on a table 3 adjustably secured to a post 2. An electric or gas heated plunger 19 is carried by a flanged collar 16 secured to a stepped holder 13 screwed into a hollow bar 6 which is reciprocated by rack and pinion by a hand lever 7. The plunger is held in operative position by a spring-loaded pawl 27 engaging a fixed ratchet wheel and freed therefrom by a Bowden control. On the holder 13 is secured a disc 14 carrying spring- pressed rods 24 secured to a ring 23 for holding the funnel part in position on the can body or the ring may rest thereon by gravity or may be replaced by a fixed work clamp. The plunger, when gas heated, may be formed with gas exhaust holes 20, 21. Gas is supplied to the interior of the plunger through central tubes 9, 18 from a flexible tube 10 and an apertured rotatable control sleeve. A series of pins adjustable radially in the plate 25 'form positioning stops for locating the can bodies. The solder may be applied to one or both parts by brushing with or dipping in a solder paste or paint. The handle 7 is operated to lower the plunger into the neck of the body to expand it into contact with the funnel part and at the same time melt the solder. The downward pressure of the plunger causes the plate 25 to yield so that when the plunger is stationary, the body of the can is urged upwards to squeeze out surplus solder. On releasing the pawl 27 the springs 24 overcome the friction between the plunger and the expanded neck so as to prevent displacement of the funnel part from the body as the plunger is withdrawn while the solder is still molten.
Patent GB-899756-A (GB)
Title: Zirconia treatment of fibrous void containing sheets
Inventor: BEEKMAN STEWART MILTON
IPC: D21H19/12
Filed: 1960-04-05
Abstract: In completely dried water-insoluble hydrous gelatinous zirconium compounds, which in aqueous dispersion may be used to size paper sheets before applying photo-sensitizing compositions thereto, are prepared by reacting a soluble zirconium compound with a sodium salt of the desired anion.  According to Examples (A) zirconium oxychloride solution was added to soda ash solution, the slurry aged and filtered to produce basic zirconium carbonate; hydrous zirconium phosphate results from substituting sodium phosphate for the soda ash.  (B) sodium hydroxide and zirconium sulphate are reacted to produce hydrous gelatinous zirconium hydroxide.ALSO:Textiles, e.g. of cotton, rayon, silk, and other fibrous materials, are surface-sized with an aqueous dispersion or paste of a water-insoluble hydrous gelatinous zirconium compound in an amount which is sufficient to fill the voids in the surface of the fibrous material but insufficient to form a continuous surface coating, so that fibres are left exposed to serve, if desired, as anchor means for further subsequently applied coatings, e.g. photo sensitive solutions. Specified zirconium compounds include the oxide, hydroxide, phosphate and basic carbonate and the sizing composition may include a small amount of a water-soluble or water-dispersible adhesive, e.g. gum, starch, synthetic resin, clay, polyvinyl alcohol, acetate or chloride, or magnesium aluminium silicate.ALSO:A surface-sizing composition for fibrous materials, e.g. paper, fabric, comprises an aqueous dispersion of an incompletely dried, water-insoluble hydrous gelatinous zirconium compound, e.g. the oxide, hydroxide, basic carbonate or basic phosphate and, if desired, a small amount of a water-dispersible or water soluble binder, e.g. clay, starch, gum, polymeric silicate such as magnesium aluminium silicate, synthetic resin such as polyvinyl acetate, chloride or alcohol.  The hydrous zirconium basic carbonate or phosphate gel is prepared by an aqueous solution of zirconium oxychloride to sodium carbonate or phosphate solution, and hydrous zirconium hydroxide by adding aqueous sodium hydroxide to zirconium sulphate solution.  The treated fibrous material is particularly suitable for further coating with photo-sensitive solutions.
Patent GB-615466-A (GB)
Title: An improved cartridge magazine for automatic firearms
IPC: F41A9/70
Filed: 1946-04-18
Abstract: 615,466. Cartridge magazines. PATCHETT, G. W., and STERLING ENGINEERING CO., Ltd. April 18, 1946, No. 12040. [Class 119] [Also in Group XXII] To eliminate distortion after assembly a box magazine of curvilinear form fabricated by welding together pressed metal parts has one or both edges of the side and front or back plates provided with. serrated flanges for engagement with each other. The magazine comprises a back wall 1, formed by bending to the required radius a plain metal sheet, side walls 2 and 3 each with a serrated flange 5 welded to the back wall 1, and a front wall 4 having outward facing serrated flanges 5 welded between walls 2 and 3. The walls are chromium plated on the inner faces before assembly. Side plates 2 and 3 have pressed-in corrugations 7 forming rails' upon which the cartridges 8 can roll and a follower platform can slide. At the mouth 9 of the magazine a bolt feeding notch 10 is provided in the back plate 1, the side plates 2 and 3 are curved inwardly at 11 and 11a and the front plate 4 has an outwardly flared lip 12 so that the two feeder pushers of a fire-arm bolt alternately contact a right and then a left-hand cartridge. The cartridges then move forward centralised by the inturned ends 11, 11a of the side plates 2 and 3 over the lip 12. At the base, the side plates 2 and 3 are outwardly flanged to receive the channel sides 15 of a base plate 14 having a perforation to receive a ball-headed projection on the lower abutment plate of the follower platform. The magazine is provided with a locating catch 32 for engagement with the firearm and a stop-plate 33 for engagement with an abutment in the magazine carrier of the firearm. An indent 29 in the front plate 4 engages the top edge of the skirt of the platform to prevent the platform rising too far in the magazine. The platform which is spring- pressed is provided with contact rollers mounted on spindles to provide a seating with which the bottom cartridges are in rolling contact. The rollers are tapered to accord with the cartridges. The platform is formed from a metal pressing.
Patent GB-179534-A (GB)
Title: Improved means for protecting electric apparatus from excess current
IPC: H02H7/085
Filed: 1922-04-29
Abstract: 179,534. Bethenod, J., (Assignee of Soc. Alsacienne de Constructions MÚcaniques). May 3, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Cut-out systems.-For protecting motors and other electric apparatus, fusible or thermal cutouts are arranged so as to be heated partly by the passage of the current and partly by rise of temperature in the machine or apparatus. The fuses &c. are calibrated so as not to be interrupted by excessive current due to starting conditions, as in polyphase motors.
Patent GB-251437-A (GB)
Title: Improvements in or relating to devices or appliances for use in teaching handicrafts
IPC: G09B19/24
Filed: 1925-05-09
Abstract: 251,437. Kent, M. A. May 9, 1925. Bench fittings; vices.-A device for placing on a school desk &c. to provide a bench for teaching handicrafts comprises a base board 1 with a strip 2 to engage the desk, a vice formed from wedge pieces 5, 6 and a bar 4, and a stop 3. The bar 4 is provided with a measuring scale and with mitreing grooves 12. The fixed wedge piece 5 may contain a sliding metal plate 20 which when gripped on edge in the vice is used for turning over metal edges. The bottom of the board may be used as a drawing board. A slot with cover may be formed in the bottom of the board to hold a T-square and pencils &c.
Patent GB-455621-A (GB)
Title: Manufacture of 4-hydroxypyrene
IPC: C07C37/04
Filed: 1935-04-23
Abstract: 4-Hydroxypyrene is obtained by diazotizing 3 - aminopyrene - 4 - sulphonic acid (prepared according to Specifications 434,128 and 434,160), removing the diazo group, and melting the sulphonic acid obtained with caustic alkali.  In an example sodium 3 - aminopyrene - 4- sulphonate is diazotized, boiled with alcohol, and the product fused with caustic potash.
Patent GB-278770-A (GB)
Title: Improvements in or relating to the installation of electric accessories, such as switches, couplings and the like
IPC: H02G3/14
Filed: 1926-05-12
Abstract: 278,770. Crabtree, J. A. May 12, 1926. Plug couplings.-Wall-boxes for couplings, &c. are provided with detachable and adjustable unitcarrier plate,s, the adjusting or levelling devices being accessible from the front and being independent of the detachable fastenings which cooperate with bayonet slots or the like in the plate so that it is necessary only to slacken the fastenings to remove the unit-carrier plate. In one construction, Fig. 1, the carrier plate a is provided with bayonet slots f countersunk at their necks for accommodating the heads of fastening screws g, levelling screws h<2> projecting into holes in the plate and being provided with shoulders h<1> upon which the plate is seated. In another construction, Fig. 3, a flanged closure frame i sockets into and rests on the edges of the wallbox which may be provided with a. metal anglepiece j to give secure anchorage to the levelling and listening screws g<1>, h<2>. The frame i may be provided with open slots i<2>, Fig. 5, for receiving the levelling screws which in this case are grooved so that the frame is then to the wallbox.
Patent GB-1104988-A (GB)
Title: Dyeing process
Inventor: KALOPISSIS GREGOIRE
IPC: D06P3/14
Filed: 1965-03-23
Abstract: Keratinic textile materials are dyed by a process in which the material is pretreated with an aqueous solution of a polysulphhydryl polymer as defined followed by application of the dyestuff. Preferably the polysulphydryl is applied from basic solution the material hydroextracted, rinsed with water and treated with acid to insolubilise the polysulphydryl polymer in situ before the dye is applied.  Optionally the keratinic material may be bleached or oxidised with hypochlorite or peroxide before application of the polymer.  Four typical structures of polysulphydryl polymer units are described. Reactive and premetallised dyes are employed in the dyeing processes.
Patent GB-997606-A (GB)
Title: Method and apparatus for manufacturing hollow articles from resinous material
IPC: B29C49/36
Filed: 1963-03-28
Abstract: 997,606. Blow-moulding machines. K NOZAKI. March 28, 1963 [March 31, 1962 (2)], No. 12323/63. Heading B5A. An extruded synthetic resin tube is fed into an open mould, rotated by a shaft 3, at a speed corresponding to that of the mould, and the mould is then closed by cam rails 59, 60 acting on rollers 31, 32 to clamp the tube. Springs (Fig. 8, not shown), positively close the mould. Just after the mould is closed, suction is applied through the shaft 3, and a pipe 90 to the tube, which causes the tube to be weakened at this point or the end of a pipe 32 may be sharp to pierce the tube. Continued rotation of the shaft 3 causes compressed air to be supplied through the pipe 92, to expand the tube against the mould. Further rotation of the shaft, cuts-off the supply of compressed air and after a cooling period, the mould opens and the moulded article removed.
Patent GB-559791-A (GB)
Title: Improvements in sheet delivery mechanism particularly for printing presses
IPC: B65H29/34
Filed: 1942-09-01
Abstract: 559,791. Sheet delivery apparatus. KAUFFELD, T. J. Sept. 1, 1942, No. 12344. Convention date, Sept. 4, 1941. [Class 100 (i)] A sheet delivery device for delivering light sheets from printing-machines is constructed with driven delivery tapes 23 upon which the sheets are pressed by blasts of air delivered by pipes 36, and to prevent curling of the edges of the sheets they are supported from underneath as moved over the top of the pile by means of reciprocating rods or fingers 38, Fig. 4, or 50, Fig. 5, operated pneumatically, electromagnetically, or mechanically in such a manner that the rods &c. are suddenly withdrawn. As applied to a reciprocating bed machine Fig. 1, in which the bed is reciprocated by crank-and-link mechanism 17, 18, 20, 21, an air pump 45 is actuated by a link 46 from the lever 20, and the pump 45 supplies air for the blast pipes 36 and also to a header 42, Fig. 4 connected to a series of tubes 39 fitted with pistons 40 for advancing the fingers 38. When The fingers 38 advance to their extreme position and support the delivered sheet above the pile the suction side of the pump is connected to the header 42 and the pistons return rapidly under the joint action of springs 47 and air pressure, so that the sheets can fall directly on to the pile table which is lowered automatically. The delivery tapes 23 are driven from the bed of the machine. In Fig. 5 the supports 50 are advanced by a lever 54 and spring 59, and are retracted rapidly by the core 57 of an electromagnet 58 controlled by an automatically operated switch. In a further modification the supports 50 are advanced by lever mechanism actuated by a rack-and-pinion and a stop which is free to move out of the path of the lever when this is returned under the action of a spring which causes a quick return of the supports 50.