baber/WOPTO huggingface dataset:
Patent GB-1517040-A (GB)
Title: Perforation of opaque lamina to produce image carriers for use in assembling circuit components on a circuit board
IPC: H05K13/00
Filed: 1975-12-15
Abstract: 1517040 Perforating materials A LEMMER [trading as ALFRED LEMMER WERKZEUG - UND - MASCHINENBAU] 15 Dec 1975 [16 Dec 1974] 20315/77 Divided out of 1517039 Heading B4B [Also in Division B3] A sheet is perforated to form a pattern for use in assembling components on a circuit board using scanning means to scan a template, the scanning means including a pressure switch actuable when superimposed on a line-up symbol on the template, perforating means having a drive magnet connectible via the pressure switch with a power source and reducing means for causing the perforating means to reproduce the movement of the scanning means on a reduced rate. As shown, a finished circuit board 15 acting as a template, located on a table 12 by adjustable guides 13, 14 is scanned by a pin 9 mounted on a parallelogram linkage 4, 5, 7, 8 hinged to a support 2. A punch 19 is mounted at such a position on the arm 7 that its movement is scaled down from the scanning pin movement. The sheet 18 to be perforated on support 17 is located between the limbs of a C-frame 22 fixed to the punch body. A punch pin 21 is actuated by a magnet 20 connected to a power source 25 via a pressure switch 10 on one scanning pin so that when, the scanning pin 9 having been aligned with the hole corresponding to hole to be punched, the switch 10 is depressed to insert the pin in the hole the punch join is actuated. The punch may be replaced by a drill or by means for bombarding the sheet with an electron ray beam. The sheet may have a thicker integral edge portion to form a frame which has notches for locating it in a projector for the assembling operation. Alternatively, the sheet and frame are a onepiece stamping with flanged edges. The perforations may be fitted with transparent material or a transparent sheet may be bonded to one or both faces of the sheet. The sheet may be of plastics material.
Patent GB-1234692-A (GB)
Title: Gear pump
IPC: F04C15/00
Filed: 1969-04-21
Abstract: 1,234,692. Gear pumps. CHANDLER EVANS Inc. April, 21, 1969 [April 29, 1968], No.20338/69. Heading F1F. A gear pump comprising a house 1, Fig. 3, having a cavity 2 closed at its ends by side-plates (not shown) wherein is rotatably mounted on a pair of parallel shafts 18, 19, intermeshing gears 9, 10 which are engaged on their tips adjacent the pump discharge chamber 13 by movable peripheral sealing means, the sealing means comprises members 24, 25 of wear-resistant, tungsten carbide each having an arcuate surface engaging the tooth tips and a T-shaped portion engaging a corresponding slot in a spring-loaded, tool steel carrier member 15. Inclined faces 30, 31, 32, 33 on members 24, 25, Fig. 5, engage mating inclined faces 34, 35, 36, 37 on the member 15 so that on differential expansion between the tungsten carbide members and the tool steel carrier member the slip planes produced thereby intersect at points 38 at the geometris centres of the T-shaped portions, to preclude any change in fit. In an alternative embodiment, the slots are formed in the members 24, 25 and the T-shaped portions on the carrier member 15. The gear teeth include tungsten carbide inserts which extend axially along the tip of each tooth and engage the arcuate surfaces of the peripheral sealing means. These inserts may also be extended from tooth tips radially towards the hubs of the gears on the end-faces thereof and may be made separate from or integral with the tooth tip inserts or alternately one radial insert may be integral with and the other separate from the tooth tip insert.
Patent GB-955257-A (GB)
Title: Ultrasonic inspection apparatus
IPC: G01N29/40
Filed: 1960-06-09
Abstract: 955,257. Thermionic valves. BRANSON INSTRUMENTS Inc. June 9, 1960 [June 9, 1959], No. 20351/60. Heading H1D. [Also in Divisions H3 and H4] A hot-cathode thyratron used in ultrasonic flaw-detecting apparatus (see Divisions H3 and H4) comprises a shield grid 30 in the form of a three-compartment box with narrow slots 82, 84 in dividers 86, 88; the first compartment contains cathode 24, the second, control grid 28 and the third, anode 32. Cathode 24 and wall 30 form a gas diode which conducts when the polarity of the voltage oscillatory tank circuit associated with the thyratron reverses on its second half cycle and dissipates the tank circuit stored energy; the thyratron then de-ionizes. Specifications 569,858 and 641,095 are referred to.
Patent GB-473162-A (GB)
Title: Electric overload cut-out
IPC: H01H85/06
Filed: 1936-07-23
Abstract: 473,162. Cut - outs. VEREINIGTE GLUHLAMPEN UND ELEKTRIZITATS AKT.-GES. July 23, 1936, No. 20414. Convention date, July 23, 1935. [Classes 37 and 38 (i)] [Also in Group XI] In an electric cut-out having a metallic core surrounded by a protecting metal sheathing, wherein upon passage of excess current the core is oxidized and is thereby rendered a high resistance, the metallic core and the sheathing are each formed of a metal alloyed with another metal, the latter metals being intermediate the core metal and the sheathing metal in the electromotive series and exhibiting among themselves a small potential difference only in this series. The effect is to reduce corrosion. A common constituent of the core and sheath alloys may be used, being preferably a metal of the iron group. In an example, a molybdenumnickel alloy is used for the core and a nickelsilver alloy for the sheath. The cut-out may be provided in the cap of a gas-filled incandescent lamp preferably of the type having spiralized filaments and the quantities of the metals alloyed with the core and sheath metals are chosen so as not to permit the evolution of metallic vapour in sufficient quantity to afford a conducting path for the current to which the cut-out responds. Specification 442,172 is referred to.
Patent GB-1464576-A (GB)
Title: Hot-curing unsaturated polyester moulding compositions
IPC: C08L67/06
Filed: 1974-05-09
Abstract: 1464576 Hot-curing unsaturated polyester compositions CHEMISCHE WERKE HULS AG 9 May 1974 [12 May 1973] 20497/74 Heading C3P A hot-curing polyester moulding composition comprises (1) an unsaturated polyester dissolved in (2) a. vinyl or vinylidene monomer copolymerizable with (1); (3) 1 to 15% by weight, based on the weight of (1) and (2), of polystyrene having a K-value of from 40 to 100; said polystyrene being dissolved in styrene monomer, and (4). an activator system which becomes active above 80‹ C. wherein the unsaturated polyester (1) is a condensation product of (A) one or more dicarboxylic acids or anhydrides which comprise at least 50 mole per cent of one or more α, #- unsaturated dicarboxylic acids or anhydrides; (B) a mixture of (I) ethylene glycol and (II) one or more diols having a solubility parameter of from 10 to 15 wherein the weight ratio of (I) to (II) is such that the average solubility parameter of the mixture of (I) and (II) is from 15À1 to 16À7 and the polyester dissolves: in the vinyl or vinylidene monomer to form a solution. Component (A) is preferably fumaric acid/phthalic acid, maleic acid or fumaric acid and component (B) is preferably ethylene glycol/diethylene glycol. The polyester may have an acid number of 20 to 50 and a molecular weight of 1000 to 3000. The composition may also comprise inhibitors, mineral fillers (e.g. quartz) and glass fibres. In the Examples, (A) is (1)-(3) (7)-(11) fumaric acid/phthalic. acid, (4)-(6) fumaric acid; (B) is ethylene glycol plus (1) (2) (4)- (7) (10)-(12) diethylene glycol, (3) dipropane diol,. (8) propane diol, (9) 1,3-butanediol. Comparative Examples utilize, as (A), (A)- (F) (K)-(S) fumaric acid/phthalic acid, (g)-(I) fumaric acid; as (B), (A)(D) propane diol/diethylene glycol, (B)(E)(H) propane diol/dipropane diol, (C)(G)(M)(N)(S) propane diol, (F) dipropane diol/diethylene glycol, (K) (O)- (R) ethylene glycol/propane diol, (L) ethylene glycol.
Patent GB-1507382-A (GB)
Title: Castor
IPC: B65D47/18
Filed: 1975-05-15
Abstract: 1507382 Castor D FUCHS 15 May 1975 [7 June 1974] 20537/75 Heading B8T A castor 1 for spices &c. comprises a preferably glass body 2 having an opening defined by a cylindrical wall 3, an insert unit 8 of synthetic material having a sieve plate 10, a cover slide 12 and either a screw-threaded or push-on lid. The insert unit has a cylindrical wall 11 and is retained in the bore 7 of the opening by a lip 18 which engages with an external groove 20. The cover slide 12 is rotatably carried, by means of a groove 15, adjacent the sieve plate and comprises a plate portion, with an aperture 14 surrounded by a standing collar 13. The cover slide is rotated to select one of several regions in the sieve plate having perforations 16 of differing sizes or to close off the castor. In an alternative embodiment (Fig. 3, not shown) the insert unit is held in place by a bead (19) on the insert unit engaging an internal fillet (21) of the opening defining wall 3. Reference has been directed by the Comptroller to Specification 1,071,628.
Patent GB-1370212-A (GB)
Title: Corona reactors and cells therefor
IPC: B01J19/08
Filed: 1972-05-03
Abstract: 1370212 Ozonizers PURIFICATION SCIENCES Inc 3 May 1972 [12 May 1971] 20582/72 Addition to 1310364 Heading H5H The dielectric layers of the corona reactor electrodes of Specification 1,310,364 are fired-on coatings of porcelain enamel comprising a composition free of bubble-producing ingredients. The composition is also free of conductive particles and voids. Each coating comprises a ground coat and a cover coat of a borosilicate glass, the preferred compositions being detailed. The Specification recites the disclosures of Specifications 1,310,364; 1,310,365; 1,265,724 and 1,265,725, except that references to metal spacer gaskets between electrodes have been removed. The preferred spacer gasket is now of plate glass with a silicone rubber gasket on both sides.
Patent GB-153699-A (GB)
Title: Improvements in or relating to bedsteads
IPC: A47C17/86
Filed: 1919-08-21
Abstract: 153,699. Jory, E. B. Aug. 21, 1919. Bedsteads combined with drawers; joints.- In a bedstead provided with drawers beneath the mattress, each side member consists of a rigid rectangular frame 14 enclosing one or more apertures 19 for the drawers, the frame holding together the head and foot portions 11, 12 of the bed, but being removable as a single entity. Detachable drawer runners 21 may be provided, and dust screens 25 may be supported on detachable transverse and longitudinal members 29, 30, 31 secured in position as shown at 33, 34, 35, 3G. A dust-excluder 37 may be provided on the head, foot. and side members of the bedstead. A suitable joint for the ends of the side members is shown in Fig. 4, hooks 17 on the member 14 engaging sockets 15 on the members 11, 12.
Patent GB-580470-A (GB)
Title: Improvements in picture and like frames
IPC: A47G1/06
Filed: 1944-10-25
Abstract: 580,470. Picture and like frames. BENJAMIN, G. Oct. 25, 1944, No. 20692. [Class 11] A frame for a picture or the like comprises top and bottom channel members 5, 6 held apart by the picture or by a supporting sheet or sheets 4 of glass or other rigid transparent material which fit in the channels, the bottom member 6 being supported by flexible strands 7a which pass through holes 8 in the upper member and are united to form a suspension loop 7. The strands which may consist of cord, wire or light chains in a single length which passes through holes 9 in the lower member 6, can be knotted at 10 above the bar 5, or the bar can be left free to slide on the strands to facilitate the removal of the picture. Two separate strands may be employed which are knotted below the bar 6. Both these knots and the knots 10 may be replaced by fixed beads or other fasteners. The channel members may be made of wood, metal or plastics.
Patent GB-1380333-A (GB)
Title: Ink container
IPC: B41K1/54
Filed: 1972-05-04
Abstract: 1380333 Ink pads ERNST REINER KG FEINMECHANIK UND APPARATE BAU 4 May 1972 [6 May 1971 8 Nov 1971] 20718/72 Heading B6C An inking unit for a printing machine comprises a box 1 and cover 6, Fig. 1, mounted on resilient type supports 1<SP>111</SP> and within the box an ink container 2, 2<SP>1</SP> with an ink pad 3. Between the pad and the container part 2<SP>1</SP> are outlet holes 5 which are sealed, when the unit is not in use, by threads 4 which at their outer ends are attached to the box cover 6. When used the cover is withdrawn and removes the threads 4 thus freeing the holes 5 for the supply of ink to the pad. In an alternative embodiment, all the holes 5 are covered by a single strip of material instead of individual threads.
Patent GB-862497-A (GB)
Title: A process for the manufacture of hydrogen peroxide
Inventor: LEFEUVRE CHARLES WILLIAM
IPC: C01B15/023
Filed: 1958-06-27
Abstract: In the process of Specifications 747,190 and the parent Specification for producing hydrogen peroxide involving successive reduction and oxidation of a solution of an alkylated anthraquinone in a mixture of an aliphatic ester of cyclohexanol or of an alkylcyclohexanol. e.g. methyl cyclohexanol acetate, and one or more alkyl-substituted benzenes containing one or more alkyl e.g. methyl or ethyl, groups, the alkyl benzene is purified by treatment with an aliphatic peracid in liquid phase before incorporation into the mixture.  The alkyl benzenes may be petroleum fractions containing a mixture of xylene isomers, or containing 50% mesitylene (1 : 3 : 5) and 1 : 3 : 4 trimethyl benzene.  The peracid should contain not more than 4C atoms, and is preferably generated in situ, and the reaction products should be separated before addition to the solvent mixture.  H.COCH is added to the alkyl benzene and then H2O2 and the reaction with the resulting performic acid may be 3-6 hours with constant stirring at, say, 30-50 DEG C.
Patent GB-614357-A (GB)
Title: Improvements in or relating to attachment devices for tractors and agricultural machinery
IPC: A01B59/042
Filed: 1946-07-11
Abstract: 614,357. Agricultural implements. BEVAN, A. P., and TRANSPLANTERS (ROBOT), Ltd. July 11, 1946, No. 20781. [Class 6 (i)] A device for attaching a rectangular tool-bar to a tractor comprises at least one retaining member 4 having spaced jaws 9, 13 which receive the tool bar 1 therebetween, and a pivoted locking member 20 which engages another part of the tool-bar and locks the bar firmly between the jaws. In the form shown, a pair of retaining members, such as 4, are attached to the tractor by links 2, 3. The locking member 20, which is fixed on a shaft 6 rotatable by a handle 14, is sector-shaped and has a curved surface 21 which engages the rear side of the tool-bar 1. In a modification, this curved surface is serrated and is brought into engagement with the tool-bar by the combined action of the handle 14 and an eccentric mounted on the shaft 6. More than one locking member may be provided.
Patent GB-362837-A (GB)
Title: Process for the production of forgings of magnesium, or magnesium alloys
IPC: B21J5/00
Filed: 1931-07-21
Abstract: Internal-combustion engine connecting-rods and turbo-compresser rotors are produced from a known magnesium alloy containing about 8 per cent of aluminium which has been deformed to obtain orientation in respect of the mechanical properties of the material.
Patent GB-1268702-A (GB)
Title: Orange disazo dyes for polyamide fibres
IPC: C09B43/28
Filed: 1969-04-23
Abstract: 1,268,702. Disazo dyes. CROMPTON & KNOWLES CORP. 23 April, 1969 [23 April, 1968; 10 Feb., 1969], No. 20831/69. Heading C4P. Novel disazo dyestuffs of the general formula where M is -H, -Na, -K, or -NH 4 , and R is -H or -CH 3  are prepared by diazotizing 2- aminoanisole-4-sulphonic acid, coupling to 2- amino - 4 - methyl - anisole, rediazotizing the mono-azo intermediate and coupling to phenol, o-cresol or m-cresol. The dyes give orange shades on nylon, silk and wool.
Patent GB-1428493-A (GB)
Title: Heterocyclic amides processes for their preparation and pharma ceutical compositions containing them
IPC: A61K31/535
Filed: 1973-05-02
Abstract: 1428493 Nicotinamides and pyrimidinecarboxamides SCIENCE UNION ET CIE SOC FRANCAISE DE RECHERCHE MEDICALE 2 May 1974 [2 May 1973] 20842/73 Heading C2C The invention comprises nicotinamides and pyrimidinecarboxamides of the formula wherein X is N or CH; n is 0 or 1; and R is -CH(R 1 )CH 2 NR 2 R 3 , -CH(NR 2 R 3 )CH 2 R 1  or a 1-R 4 -pyrrolidin-2(or 3)-yl radical, wherein R 1  is H or CH 3 , R 2  and R 3  each are C 1 -C 6  alkyl, or R 2  and R 3  together are C 4 -C 7  polymethylene, which is optionally interrupted by an oxygen atom, and R 4  is C 1 -C 20  acyclic hydrocarbon, C 3 -C 7  cycloalkyl or Ar-A or wherein A is a single bond or C 1 -C 6  acyclic hydrocarbon, and Ar and R<SP>11</SP> each are phenyl optionally substituted by alkoxy, methylenodioxy, ethylenedioxy or trimethylenedioxy radicals; and acid addition salts thereof. The compounds are prepared by either reacting acid halides of the Formula IV  wherein Z is Cl, Br or OCOOY, where Y is C 1 -C 6  alkyl with amines of the formula and deacetylating the resulting amides of the formula or by reacting the appropriate aminonicotinic acids or aminopyrimidinecarboxylic acids with compounds of the formula 6 - Acetamidonicotinoyl chloride is obtained by reacting 6-acetamidonictonic acid with thionyl chloride. Pharmaceutical compositions suitable for oral, parenteral or rectal administration, contains the above novel compound or acid addition salts thereof and pharmaceutically acceptable carriers. The compounds possess gastric antisecretory, antiulcerous, gastro-intestinal motility and central nervous system acting properties.
Patent GB-957585-A (GB)
Title: Storage-stable film-forming polyurethane-based compositions
IPC: C08G18/24
Filed: 1962-05-30
Abstract: Film-forming, storage-stable compositions free from water and alkaline-reacting substances, comprising from 10% to 90% by weight of a solvent free from active hydrogen (as determined by the Zeriwitinoff test), from 90% to 10% by weight of an isocyanate-terminated polyurethane film-former dissolved in the solvent, and a catalyst, also dissolved in the solvent, which is an organo-compound of tetravalent tin in which each tin atom is bonded to at least one carbon atom and to at least one oxygen, sulphur or chloric atom, the polyurethane being obtainable by the complete reaction of a polyol or mixture of polyols, having an average of two to four hydroxyl radicals per molecule and an average equivalent weight per hydroxyl radical of 100 to 600, with an organic polyisocyanate or organic polyisocyanate mixture, having an average of two to three isocyanate radicals per molecule and an average equivalent weight per isocyanate radical of 50 to 200, the weight of polyisocyanate being 35% to 65% of the total weight of polyisocyanate plus polyol, and the ratio of isocyanate radicals to hydroxyl radicals being between 1.5:1 and 2.2:1. The term polyol is defined as a compound containing more than one alcoholic hydroxyl group per molecule.  The polyols may be castor oil, hydrogenated castor oil, and esters or partial esters of ricinoleic acid with polyhydric alcohols; blown drying oils and esters or partial esters of the characteristic fatty acids of such oils with low molecular weight polyols; polyether diols; polyether triols; polyether tetrols; polyester polyols and low molecular weight polyols. Many such polyols are specified.  Many organic polyisocyanates are specified including tri-isocyanates prepared by reacting 1 mol of a triol such as trimethylolpropane with 3 mols of a diisocyanate such as tolylene di-isocyanate compounds of tetravalent tin which may be used include dibutyltin dilaurate, dibutyltin di-2-ethylhexoate, dibutyltin diacetate, dibutyltin maleate, dibutyltin dichloride, dibutyltin oxide, dibutyltin sulphide, dibutyltin dibutoxide, dibutyltin dilaurylmercaptide, dibutyltin bis(o-phenylphenate), dibenzyltin di-2-ethylhexoate, di-2-ethylhexyltin oxide, tributyltin acetate, tributyltin o-phenylphenate, butyltin trichloride and 2-ethylhexylstannonic acid. The solvent used may be toluene, xylene, petroleum hydrocarbon distillate fractions, isopropyl ether, ethyl acetate, b -ethoxyethyl acetate, methyl ethyl ketone and various mixtures thereof.  The catalyst may be added before or after the preparation of the polyurethane.  Acid substances such as benzoyl chloride may be added as stabilizers. In examples compositions according to the invention are compared with similar compositions containing no catalyst.
Patent GB-709171-A (GB)
Title: Apparatus for drawing a perspective representation
Inventor: STIEBING HEINRICH
IPC: B43L13/14
Filed: 1952-08-21
Abstract: 709,171. Perspective drawing appliance. KUHLMANN, F. W., [trading as KUHLMANN KOMMANDIT-GES. WERKSTATTEN FUR PRAZISIONSMECHANIK UND MASCHINENBAU, F.]. Aug. 21, 1952, No. 20969/52. Class 97(3) A draughting machine for making perspective drawings comprises a drawing board shown in two sections 2, 3; in use a plan view is laid on section 2 and the perspective is drawn on paper on section 3. A bracket 55 attached to section 2 has pivoted thereto at 4 (the viewing centre) a two-armed bar 40, 14 provided with a scale 16 and rigid therewith is a bar 7 (the viewing direction bar) in a groove of which a bar 11 is slidable. Adjustably clamped on bar 11 is a slide 12 to which is pivoted at 13 a bar 22 (representing the picture plane), and adjustable on bar 7 is a slide 6 carrying an arm 8 extending parallel to the arm 14. Slides 9, 10 on arm 8 whose positions on said arm represent the upper and lower ends of vertical lines of the object, are pivoted to arms 19, 18 pivoted together at 17 on a slide 15 on arm 14, the position of this slide on arm 14 representing the elevation of the viewing centre 4. Bar 11 has pivoted thereto at 44 an arm 43 linked at 42 to a bar 39 which extends parallel to arm 11, is slidable in slots in arm 40 and in a bracket 41 attached to arm 7, and has a slide 38 pin and slot connected to the arm 22 at 37. A ruler 23 on section 3 of the drawing board is connected at 24, 25 to carriages 31, 32 slidable in recesses on the under side of this section and having projecting levers 33, 34, Fig. 1. These levers are pin and slot connected at 29, 30 to a lever 26 which extends below section 2 parallel to the bar 7 and is rigidly connected to said bar so as to rock therewith. Lever 34 is connected to a bracket on which is slidable a pin 46 engaged in a slot in arm 43 and lever 33 accommodates a slidable bar 27 which is connected to the bar 11 by a bracket 45. The plan view on section 2 is traced out by a pointer 5 attached to arm 8, the movements of the pointer being transmitted to the ruler 23 and a line being drawn on the paper on section 3 at the end of each adjustment.