baber/WOPTO huggingface dataset:
Patent GB-968095-A (GB)
Title: Cooling arrangement for one or more semi-conductor devices
IPC: H01L25/03
Filed: 1961-02-09
Abstract: 968,095. Semi-conductor devices. SIEMENS-SCHUCKERTWERKE A.G. Feb. 9, 1961 [Feb. 9, 1960], No. 4948/61. Heading H1K. In a cooling member (Figs. 2, 3, 4) for a semi-conductor device, particularly one comprising Ge or Si, a stem portion 2 supporting a plurality of cooling vanes 3 is coextensive with the vanes 3 in the longitudinal direction of the latter. A threaded aperture 5 in one end face 4 of the cooling member receives the bolt of a semi-conductor device. For securing the cooling member to a further support (not shown) two pins 7 and a threaded aperture 8 are provided at the opposite end face 6. The vane 3 adjacent end face 4 has two recesses 10, and a projecting portion 23 of the cooling member at the same end has a threaded aperture 9; these are to facilitate the provision of terminals for the semi-conductor device. Fig. 6 shows a sealed semiconductor device 19 screwed into the cooling member and having one terminal formed by projecting member 23, a screw 16, and a cupshaped washer 12a. The second terminal is formed by a similar screw 15 and washer 13a co-operating with an insulating member 22 secured to the vane comprising recesses 10 by two hollow rivets 24 in said recesses, a lead 20 emerging from the housing of device 19 through an insulating bushing 21 being connected to the second terminal by a flexible conductor 14. In a modification. Fig. 10, the cooling member is provided with an insulating layer over its entire surface or at least on that face adjacent the semi-conductor device 19; if the cooling member is of aluminium the layer may be of aluminium oxide, or a thin protective foil or brushed-on coating may be interposed between the cooling member and device 19. The housing of the device is electrically connected to a terminal screw 27, which co-operates with a nut in a recess in the cooling member by a bridge member 25. Fig. 9 shows three cooling members 1a . . . 1c, bearing devices 19a . . . 19c, connected by intermediate members 17, 18, into recesses in which the vanes fit; the whole assembly may befixed to a further support. The cooling member may be secured in heat-conducting contact with a further cooling member, either by using an intermediate member or by fitting pins 7 into corresponding apertures in the further cooling member. Copper may be used for the cooling member, and the vanes, which may be of the same or a different metal compared with the stem portion, may be integral with the stem, e.g. cast with it, or screwed to the stem or fitted into recesses in the stem and soldered, welded &c. The stem may be tapered in the direction away from the semi-conductor device, and the vanes may extend parallel to the longitudinal axis of the cooling member. A plurality of semiconductor devices may be connected to one cooling member.
Patent GB-142791-A (GB)
Title: Improvements in or relating to covers for pneumatic tyres
IPC: B60C5/00
Filed: 1920-02-18
Abstract: 142,791. F.E.C.I.T. (Fabbricazione Esportazione Copertoni Imperforabili-Torino), (Assignees of Parenti, G., and Messina, V.). May 6, 1919, [Convention date]. Jackets and covers; tread bands, projections, and surfaces.-A tyre cover consists of a fabric foundation 1 to which an outer leather layer 2 is secured by rivets 7 having projecting heads. Other tread studs 7' are secured to the leather layer only, and reinforcing-wires 9 may be interlaced around the studs as indicated in Fig. 2. The tyre is attached to the rim by means of flanged plates 5; between which the edges of the leather band 2 are notched as at 3 to adapt the band to the curvature of the tyre. The notches 3 may be held closed by wire staples.
Patent GB-820693-A (GB)
Title: Process for the selective decomposition of formic acid
IPC: C07C51/487
Filed: 1958-02-17
Abstract: Acid mixtures containing either formic acid and one or more other aliphatic acids or formic acid, one or more other aliphatic acids and one or more hydrocarbons, are purified by selectively decomposing the formic acid by contacting the mixture in the vapour phase with a dehydrogenation catalyst containing chromium oxide and copper oxide, the atomic ratio of Cu:Cr being 1:1 to 1:2, at a temperature between 130 DEG  and 200 DEG  C. with the exclusion of oxygen.  The other aliphatic acids present are generally monocarboxylic acids having 2 to 8 carbon atoms and the reaction is preferably carried out at a temperature of 160-80 DEG  C. using a catalyst containing also a small quantity of barium oxide and a space velocity of at least 4 litres of liquid feed per litre of catalyst per hour.  The other aliphatic acids and hydrocarbons which may be present are unaffected by the treatment.  The examples describe the treatment of mixtures containing 4% formic acid, together with acetic acid, water and diisopropylbenzene, to decompose the formic acid.  Specification 734,374 is referred to.
Patent GB-782930-A (GB)
Title: Improvements in or relating to apparatus for converting a sinusoidal alternating voltage into a dependent direct voltage
IPC: H02M11/00
Filed: 1956-02-17
Abstract: 782,930. Converting. SIEMENS-SCHUCKERTWERKE AKT.-GES. Feb. 17, 1956 [Feb. 25, 1955], No. 5059/56. Class 38 (2). An alternating voltage of maximum valve or #Û is converted into smooth direct voltage of corresponding value by deriving a second alternating voltage 90 degrees displaced in phase from the first, deriving from these two voltages, voltages having the values Û sin <SP>2</SP>wt and Û cos<SP>2</SP>wt and adding them. Where the value of the direct voltage is to have a value dependent on the difference of the speed of a motor 1 from a set speed, the motor drives a dynamo 2 having two windings 3, 4, 90 degrees electrical apart. Each winding is connected to a bridge comprising a resistor 6, capacitor 8, inductor 9 and the two halves 7a, 7b of the primary winding of transformer 7. As the resistance of 6 is equal to that of the other branch 8, 9 which is tuned to the set frequency, the currents in winding halves 7a, 7b are equal and opposite at the set frequency, and current flows in the secondary winding to a value proportional to the amount the frequency departs from that set. The voltages of values Û sin<SP>2</SP>wt and Û cos<SP>2</SP>wt are derived in Hall generators whose input terminals a, b and control field windings are fed respectively from the output of a bridge and opposite winding of the generator. The direct voltage is obtained by connecting the output probes c, d, e, f of the Hall generators in series.
Patent GB-1141369-A (GB)
Title: Process for the oxychlorination of organic compounds
IPC: C07C17/156
Filed: 1966-02-04
Abstract: 1,141,369. Oxychlorination process. HOOKER CHEMICAL CORP. 4 Feb., 1966 [25 Feb., 1965], No. 5087/66. Heading C2C. A process for the oxychlorination of alkenes comprises, (a) contacting and reacting at a temperature of 170-400 C. in the vapour phase and in the presence of an oxychlorination catalyst (i) oxygen, (ii) a C 2-4  alkene or partially halogenated alkene, (iii) an inorganic gas as diluent, and (iv) as chlorinating agent, hydrogen chloride, chlorine, or a mixture of hydrogen chloride and chlorine, the amount of chlorinating agent being less than that stoichiometrically required to add two chlorine atoms to each molecule of alkene, (b) subsequently partially condensing the effluent gases, (c) separating the condensate, and (d) recycling substantially all of the non-condensed gases, thereby providing additional reactants and diluent gases for further reaction.
Patent GB-215858-A (GB)
Title: Improvements in or connected with marginal printing plates
IPC: B41F27/10
Filed: 1923-02-21
Abstract: 215,858. Hoe & Co., Ltd., R., (Hoe & Co., R.). Feb. 21, 1923. Printing-surfaces.-The margin space between two printing-plates 2, 3 arranged on a support such as a cylinder 1 and usually occupied by a plate stop 6, is utilized for printing by forming on one of the main printing-plates a printing- surface 11 of the same length as the plate and extending entirely across the margin space so as to provide an unbroken printing-surface in this space. The plates 2, 3 are bevelled to take undetthe bevelled sides 5 of the margin stop 6 which forms part of the means for clamping the plates on the cylinder. An extension 11 is cast on the plate 2 and extends entirely across the stop 6, its edge being bevelled at 12 to make a snug contact with the edge of the plate 3. By this arrangement, the margin space may be utilized to print matter different from that carried by the main plates. or a page, or a double width page of a newspaper, may be printed without a margin space.
Patent GB-640739-A (GB)
Title: Protective coating for resistors
IPC: H01C1/034
Filed: 1948-02-20
Abstract: 640,739. Resistance coatings and deposits. CONTINENTAL CARBON, Inc. Feb. 20, 1948, No. 5122. Convention date, June 6, 1941. [Class 37] [Also in Group XXIII] A resistor wherein the resistance element is a thin metal film on the external surface of a non-conductive carrier is provided with protection in the form of a vitrified enamel coating according to a process which includes the steps (1) applying a thin layer of vitreous enamel slip to the surface of the resistor film; (2) drying the thin layer of vitreous enamel (3) heating the carrier, the thin metal film and the dried enamel coating to fuse the enamel coating to the metal resistor film. The invention is particularly directed to the metal film resistor disclosed in Specification 640,323, and is described in this connection. In Fig. 4 the coating 15 on the metal resistor film 11 is the vitreous, enamel slip arranged to encroach as at 16 slightly on to the metal terminal coating 12. The slip ingredients, flowing temperatures, &c. are given in the Specification. Fig. 1 shows the finished resistor with helical grooves 18 cut in the vitrified enamel coating 17 and metal film 11.
Patent GB-267111-A (GB)
Title: Improvements relating to dolphin piles
IPC: E02B3/28
Filed: 1927-02-23
Abstract: 267,111. Oberschulte, H. March 4, 1926, [Convention date]. Bollards. - Dolphin piles for moving ships are constructed of sheet metal piling members a rammed to form a hollow structure. Preferably, the pile members are of box or trough section with the interlocking joints in the neutral axis or on one side only of the structure. The pile members a are slightly bent in rolling. After driving, the piling is anchored in the ground, the cavities and the interior being filled with sand or concrete and the pile closed at the top by a ferro-concrete cap in which the mooring devices are secured.
Patent GB-731557-A (GB)
Title: Photopolymerization process and compositions
Inventor: SACHS CARROL CLIDE
IPC: C08F2/46
Filed: 1953-02-24
Abstract: Ethylenically unsaturated resinophors are photopolymerized in the presence of a minor proportion of a photopolymerization catalyst having the formula <FORM:0731557/IV (a)/1> where R represents halogen atoms and monovalent hydrocarbon groups consisting solely of hydrogen and carbon atoms, X is a halogen atom, X1 represents a halogen or hydrogen atom, and R1 represents a hydrogen atom and monovalent hydrocarbon groups consisting solely of hydrogen and carbon atoms, such as desyl chloride and bromide, chloral and bromal. Ethylenically unsaturated resinophors specified which may be polymerized or copolymerized in their monomeric or partially polymerized forms are acrylic and methacrylic acids, methyl and butyl acrylates, methyl, ethyl, butyl, isobutyl, allyl and methallyl methacrylates, ethylene glycol and hexamethylene glycol dimethacrylates, styrene, ortho-methyl and meta-methyl styrenes, chlorinated styrenes, chloroprene, vinyl acetate, allyl alcohol, diallyl maleate and phthalate, dimethallyl carbonate, vinyl and vinylidene chlorides, and unsaturated alkyd resins made from ethane and butane diols and unsaturated dicarboxylic acids such as maleic, fumaric, and itaconic acids.  Polymerization may be carried out in bulk or solution, and, if desired, at elevated temperatures in the presence of a peroxide catalyst such as benzoyl, lauroyl, or tert-butyl hydrogen peroxide.  The process may be used in the preparation of laminates and mouldings which after photopolymerization may be further polymerized by baking.
Patent GB-1181121-A (GB)
Title: Production of Pile Fabric
Inventor: BEUCUS ABRAHAM JOHN
IPC: D04B9/14
Filed: 1967-02-02
Abstract: 1,181,121. Knitting. BUNKER-RAMO CORP. 2 Feb., 1967 [7 Feb., 1966], No. 5166/67. Headings D1C and D1K. In a circular multifeed machine for knitting high pile fabrics, films are fed from two sources to each feed. Fibres differing in density and/or length and/or colour are fed by carding means to parts 22a, b of a doffer. Needles having long or short butts 34, 32 are arranged in a desired pattern around the cylinder. Long and short butt needles are selectively raised to upper tracks as they pass parts 22a, b respectively and thereby take different fibres. In a modification medium butt needles 36 move in upper tracks at both parts 22a and b, taking both types of fibre. Since the needles are arranged in groups to take different fibres, there will be a periodic buildup of fibres on the doffers. Consequently in the fabric produced the leading edges of the stripes will have a higher pile density than the trailing edges. In the arrangement with three butt lengths the fabric comprises stripes of each of two different fibres and a strip consisting of a mixture of both types. Similar fibre feeding arrangements may be made at each feed so that each wale always includes the same fibre(s); or the pattern in the wale may be varied by feeding a different fibre to one feeding station.
Patent GB-1010345-A (GB)
Title: Device for temporarily disengaging a milling tool from a workpiece
IPC: B23Q1/68
Filed: 1964-02-07
Abstract: 1,010,345. Milling. H. DECKEL, and F. W. DECKEL, Feb. 7, 1964 [Feb. 19, 1963], No. 5220/64. Heading B3K. A machine tool comprises drive means 34, 40 adapted to be coupled to the feed drive 28, 26, 24 to move a member 14 to disengage the work and tool, the member having an adjustable abutment 56 thereon. The milling cutter 16 is carried on a spindle 18 rotating in the sleeve 14. The split collar 56 is clamped on the sleeve by a screw-operated by a lever 58 so that a small reciprocating movement of the sleeve can be made between limits determined by the collar to retract the cutter a predetermined amount during a non-operative traverse of a work-slide on a knee. When a nut 36 has been tightened to clamp the manual-drive shaft 28 to the bush 34, oscillation of the bush by a pin 40 on a lever actuated by a solenoid causes the gearing 26, 24, 20 to effect the reciprocation of the sleeve.
Patent GB-769124-A (GB)
Title: A method of treating potatoes
Inventor: MICHELS PAUL
IPC: A23K1/14
Filed: 1955-02-22
Abstract: To prevent discolouring of cooked potatoes, a water-soluble polymeric phosphate, or an insoluble polymeric phosphate which has been rendered water-soluble, is added to the water used for cooking the potatoes.  This water may contain also citric acid, tartaric acid or an edible citrate or tartrate.  Examples are concerned with allowing 10 kg. of peeled potatoes to stand for 1/2 -1 hr. in 10 kg. of salted water containing 3 g. of (1) disodium pyrophosphate, (2) a mixture of equal parts of disodium pyrophospate and high-polymer sodium metaphosphate, (3) a mixture of equal parts of disodium pyrophosphate and citric acid, and then boiling the potatoes in this water.
Patent GB-916263-A (GB)
Title: Refrigerating package
Inventor: LINN CLIFFORD ALFRED
IPC: F25D5/02
Filed: 1960-02-15
Abstract: 916,263. Refrigerating. KWIK-KOLD OF AMERICA Inc. Feb. 15, 1960, No. 5339/60. Class 29. An endothermic-action refrigerating package consists of a partially-evacuated, transparent, outer, plastic envelope 20 containing a refrigerating chemical 24, a water-soluble dye, and an inner water-containing plastic envelope 22 which is weaker than envelope 20 so that it can be ruptured by pressure without rupturing the outer envelope. The partial vacuum is produced by inserting the chemical, dye and envelope 22 in envelope 20, squeezing the air out of the upper part of the envelope 20 as shown in Fig. 3 and then applying a heat seal 30 to the upper end of the latter.
Patent GB-765405-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: C03C17/22
Filed: 1955-02-23
Abstract: 765,405. Electric incandescent lamps. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 23, 1955 [Feb. 26, 1954], No; 5435/55. Class 39(2) The bulb of an electric incandescent lamp is provided with an internal coating layer of powdery light-diffusing material consisting of an alkaline earth phosphate which is insoluble in water. Preferably the phosphate has apatite structure. The method of applying the light-diffusing layer comprises the steps of applying to the inside surface of the bulb, a stable suspension of an alkaline earth phosphate, which is insoluble in water, to which is added at least 1.5 per cent (calculated on the phosphate) of phosphoric acid, or a compound or compounds which produce this amount of phosphoric acid, in a volatile organic liquid which is miscible with water, said suspension preferably having a water content of about 3 per cent (also calculated on the phosphate), the resultant layer after drying, being heated to a temperature of at least 200‹C. In an example 3750 grams of 3 Ca 3 (PO 4 ) 2 . CaF 2  or 3 Ca 3 - (PO 4 ) 2 . Ca(OH) 2  are ground with 135 c.c. of water, 155 c.c. of phosphoric acid (specific weight 1.75) and 3.75 litres of methanol for 96 hours in a porcelain ball-mill having a capacity of 15 litres with the use of 10 kgs. of flint stones of 2 cms. in diameter at 60 revolutions per minute. The phosphate particles after this treatment are smaller than 3 microns. The suspension obtained is finally diluted with 10.4 litres of ethanol and sprayed upon the inner surface of a lamp bulb and, after draining away the excess suspension, the remaining layer is dried by blowing in hot air. At the areas at which other parts are to be sealed to the bulb in manufacturing a lamp the layer is removed by a rotating brush, .and the remainder is then heated at 500‹C. for one minute.
Patent GB-163792-A (GB)
Title: Method of and means for operating tipping gear upon vehicles electrically
IPC: B60P1/06
Filed: 1920-02-24
Abstract: 163,792. Smith, P. F., Dine, E. H., and Stocks, F. R. Feb. 24, 1920. Driving auxiliary parts. - In an electrically - propelled tip-wagon the motor 14 propels the vehicle and drives the tipping-gear. The motor shaft 3 drives a sliding toothed wheel 1 which can engage either an internally toothed wheel 21 on the vehicle-propelling shaft 22, or a gear wheel 32 on a screwshaft 28 operating the tipping gear. The toothed wheel 1 is moved by means of a hand - lever 11 situated n e a the driver's seat.
Patent GB-226039-A (GB)
Title: Improvements in or relating to the typing of turco-arabic and similar characters
IPC: B41J19/32
Filed: 1923-10-20
Abstract: 226,039. Madiarov, A., and Touganov, T. Oct. 20,1923. Letter-spacing mechanism; type-lever actions. -In typewriters for typing Turco-Arabic or similar languages, letter-spacing corresponding to the width of the characters typed is effected upon the depression of any character key independently of the position of the key on the keyboard and of the depression of any auxiliary key or other devices by the following mechanism. A block 13, Fig. 2, is provided with a tooth normally engaging the escapement ratchet-wheel 16 and slides in a circular groove in a rocking-dog 12 actuated on depression of a character key to disengage the block 13 from, and to engage a tooth d on the dog 12 with, the wheel 16. The movement of the block 13 to the left in Fig. 2 by a spring 22 is limited by a stepped stop-lever 19 controlled directly from the character keys. On release of the depressed key, the dog 12 is rocked by a spring 36 to engage the block 13 with the wheel 16, which, on disengagement from the tooth d, is rotated by the main spring 17 through an angle corresponding to the previous movement of the block 13, and pulls the block 13 back into normal position with a lip i against the dog 12. The block 13 is pivoted to an arm 15 swinging about the axle F of the wheel 16, the spring 22 being arranged between, and controlling, the arm 15, and the stop-lever 19. The depression of a character push-key 1, Fig. 1, operates the typelever 7, through a bell-crank lever 2 and linkage 3 - - 6, and rocks the dog 12 by an arm on a shaft D operated by a universal bar 8 in contact with the lower ends of the levers 5. The characters, reduced in number by minor alterations of shape, are offset relatively to the central line of the levers 7 according to their width. When the key of a character of minimum width is depressed, the bar 8 is operated and the step f<1> of the lever 19 controls the block 13 and so controls the movement of the carriage from left to right. When the key of a character of greater width is depressed, the lever 19 is moved, in addition to the bar 8, to increase the movement allowed to the block 13 by bringing one of the steps f into co-operative position. The movement of the lever 19 is produced by the engagement of a pin 20 on the lever, and working in a slot 21 in the casing 18 of the spring 17, with the free ends of levers 32 pivoted at N. The movements of the levers 23 are controlled by slots engaging a stud 35 on the casing 18, and are produced through linkage 27 - - 31 from bars 26 co-operating with teeth 24 on sliding rods 23 operated by the levers 5.
Patent GB-1031957-A (GB)
Title: Improvements in or relating to matrix-setting and line-casting machines
IPC: B41B11/18
Filed: 1965-02-09
Abstract: 1,031,957. Type-bar making machines. LINOTYPE G.m.b.H. Feb. 9, 1965 [Feb. 12, 1964], No. 5561/65. Heading B6W. In a line-casting machine, to prevent a largebody matrix jamming, the assembler slide 7 is moved away a predetermined amount from the star-wheel 6 by a U -shaped finger 10 on a pivoted lever 11. The finger 10 engages in a peripheral groove 9 in the star-wheel during normal operation. An electromagnet 15 is used to move the finger 10 into engagement with assembler slide stop 8 or the last matrix assembled on the slide. Energization of the electromagnet is governed by two switches in the circuit thereof. One switch 41, Fig. 4 (not shown), is closed when a magazine is selected which contains certain large-body matrices likely to jam. When the key of one of the large-body matrices is depressed, the short release bar thereof, which is provided with a nose 21, Fig. 3 (not shown), co-operates with a pivoted plate 26 extending the length of the keyboard, which plate allows actuation of the second switch 25.