baber/WOPTO huggingface dataset:
Patent GB-1532043-A (GB)
Title: Metal-containing disazomethine compounds and process for preparing them
IPC: C08L1/00
Filed: 1976-07-28
Abstract: Metal-containing disazomethine compounds are prepared by condensing 1 mol of one or more diamines of the formula II H2N - R - NH2     (II> in which R is a single bond, a straight-chain or branched alkylene radical, which may be interrupted by hetero atoms, a divalent group or an isocyclic or heterocyclic ring or is a cycloalkylene radical, an arylene radical or a heterocyclic radical, with 2 mol of one or more compounds of the formula III <IMAGE> in which X is a carboxylic acid, carboxylic ester, substituted or unsubstituted carboxamide or carbohydrazide group, and simultaneous or subsequent metallisation of the disazomethine compound obtained. These novel compounds are suitable for use as yellow pigments in printing pastes, printing inks, high-molecular-weight plastic compositions, coatings, paints or spinning compositions. They are light-, weather- and solvent-fast and heat-resistant; they exhibit high colour strength and good transparency.
Patent GB-1152789-A (GB)
Title: A method of and a Casting Mould for Centrifugally Casting Pipes or Rings
IPC: B22D13/10
Filed: 1967-07-07
Abstract: 1,152,789. Centrifugal casting. DEUTSCHE EDELSTAHLWERKE A.G. 7 July, 1967 [22 Aug., 1966], No. 31493/67. Heading B3F. [Also in Division B5] A centrifugal casting mould 1 is adapted to cast pipes or rings of a length shorter than the mould by forming refractory rings 7 on the inside of the mould and between which the required length of pipe is cast. The rings 7 are formed by centrifugally casting a liquid refractory material between a mould plate 6 and backing plate 5 mounted on the end of a spacing tube 4 that is located in the mould 1 by a flange 3. The mould plate 6 is subsequently removed and a pipe cast between the rings 7 while the backing plate 5, tube 4 and flange 3 remain in the mould. The spacing tube 4 is exchangeable for tubes of differing length depending on the length of pipe to be cast.
Patent GB-430242-A (GB)
Title: Torque distributor or differential gearing
IPC: F16H48/12
Filed: 1933-11-11
Abstract: 430,242. Differential or balance gearing. LAWLER, F. P., 251, Kearney Street, San Francisco, U.S.A. Nov. 11, 1933, No. 31512. Convention date, Dec. 27, 1932. [Class 80 (ii)] Differential gearing is adapted to drive both axles D, E, Fig. 1, of a vehicle so that, if only one wheel grips, there is still a drive. Splined at 24, Figs. 3 and 10, on the axles E, D, are two gear members 22 which are formed internally at 22<a> as eccentrics and externally as cylinders adapted to turn inside and relatively to an enveloping drum C, Fig. 1, secured to a driving crown wheel 4. Engaging and turnable loosely within the eccentrics 22<a> are two hollow compensating cylinders 19<a>, Fig. 4, and 19, Fig. 9, respectively, which have solid ends each with a diametral slot 20. These two slots 20 engage slidably with lugs 18<a>, 18, Fig. 5, on a driving plate 13 which has aligned arms 14 adapted to reciprocate through driving apertures 8, Fig. 2, in the drum C. The drum C is in two parts bolted together, windows 7 being provided for inspection and lubrication. The compensators 19<a>, 19 are connected to one another so as to maintain an effective drive while wabbling inside the eccentrics 22<a> during differential action. To this end, a connecting disc 15, Fig. 6, is turnably supported in a central aperture in the plate 13, Fig. 5. The plate 15 has two off-set cylindrical through holes 15a, 15b. Carried loosely in the hole 15<a> is a cylindrical pin 16<a>, Fig. 7, having a rectangular lug 17<a> across one end engaging a cross slot 21, Fig. 4, on one side of the slot 20 in the compensator 19<a>. Carried loosely in the other hole 15b is an oppositely-directed pin 16, Fig. 8, with an end lug 17 engaging a cross slot 21, Fig. 9, in the other compensator 19, the two slots 21 being in line on opposite sides of the slots 20 and lugs 18, 18<a>. The compensators 19<a>, 19 are wide enough not to jam within'the eccentric members 22 while driving, and they are always clear of central supporting bosses 23, Fig. 3, of these members.
Patent GB-485376-A (GB)
Title: Improvements in and relating to electric lamp holders
IPC: H01R33/05
Filed: 1936-11-18
Abstract: 485,376. Two-part couplings. GENERAL ELECTRIC CO., Ltd., and BARRETT, G. S. Nov. 18, 1936, No. 31576. [Class 38 (i)] A holder for a lamp having plug-shaped terminals comprises sockets 1 to receive the plug terminals and having slots 7 so that the sockets can be compressed to grip the plugs. In one form, the sockets are externally tapered and screwthreaded so that nuts 10 when screwed down compress the sockets. Each socket is integral with a terminal block 3 having bores 4, 5 and a binding screw 6 to secure a wire inserted in either bore. The block 3 also serves to mount the socket in a base consisting of a disc 2 of insulation and a similar disc. 8 secured by a bolt 9 to retain the block 3. The compression of the socket may be effected by a band that can be tightened around it or by lugs formed at opposite sides of the split in the socket drawn together by a screw. Instead of split sockets, sockets built up of separate elements may be employed.
Patent GB-1313966-A (GB)
Title: Process for preparing alkyl 2-benzimidazole-carbamates
IPC: C07D235/32
Filed: 1971-07-06
Abstract: 1313966 Alkyl - 2 - benzimidazole - carbamates; allophanates and thioallophanates E I DU PONT DE NEMOURS & CO 6 July 1971 [6 July 1970 16 Sept 1970] 31586/71 Heading C2C Alkyl 2-benzimidazole-carbamates of the Formula I: wherein Y is a hydrogen atom or a C 1-4  alkyl group and R is a methyl or ethyl group, are produced either (a) by reacting allophanic or thioallophanic acid alkyl esters of the Formula II: wherein X is an oxygen or sulphur atom with acids and neutralizing the salts so formed with bases or (b) by reacting thioallophanic acid alkyl esters of the Formula III: wherein R 2  is a hydrogen atom or the group -CS-NHCO-OR, with agents (A) capable of removing the sulphur atoms or atoms of the thioallophanic acid alkyl ester in the form of mercaptans during ring closure and bases at 50 to 150 C. Methyl - 4 - (2 - aminophenyl) - 3 - thioallophanate and dimethyl 4,4<SP>1</SP>- (1,2 - phenylenebis)-3-thioallophanate are prepared by mixing together methyl chloroformate, potassium thiocyanate and acetone, stirring the reaction mass, filtering and reacting the filtrate with appropriate amounts of o-phenylenediamine. Methyl- 4-(o-aminophenyl) allophanate is prepared from o-phenylenediamine and methoxycarbonyl isocyanate.
Patent GB-490925-A (GB)
Title: New or improved indexing mechanism for machine tools and the like
IPC: B23Q16/02
Filed: 1936-11-21
Abstract: 490,925. Toothed gearing; shaft couplings. BROWN & SONS (HUDDERSFIELD), Ltd., D., and MERRITT, H. E. Nov. 21, 1936, No. 31892. [Classes 80 (i) and 80 (ii)] [Also in Group XXII] In mechanism for indexing a work-piece relatively to its rotating driving spindle during rotation of the spindle in reverse direction, the work is driven by dogs d<1> on a member d which is freely rotatable on the spindle a but is normally connected thereto by an indexing lever f engaging one of a series of internal notches e<1> on the member and pivoted to a disc f<1> secured to the spindle. Similar gears h, k in the spindle and member d respectively engage similar pinions i, m, the former being secured to a quick-pitch screw having a left-hand thread and the latter being connected through a roller, ratchet or other oneway clutch n to a quick-pitch screw o having a right-hand thread. A double nut p engages both screw threads and is capable of axial movement by means of a pair of fluid pressure plungers s<1>, s<2> operating in cylinders t<1>, t<2>. During forward or reverse rotation of the spindle a the work is rotated at the same speed as the spindle through the gears and pinions h, i, k, m, and the lever f rests in one of the notches e<1>, but if during reverse rotation the nut p is moved axially by the plunger s<1>, the screw o will be rotated relatively to the screw j and the pinion m will rotate the work relatively to the spindle a causing the lever f to ride out of its notch e<1> and enter the next notch. The extent of this indexing movement is governed by the distance the nut p is moved axially by the plunger. When the spindle and work are again rotated in the for ward direction the nut p may be returned to its former position by the plunger s<2>, the oneway clutch n allowing relative rotation between the screws j, o in this direction without affecting the pinion m. The nut p may be moved axially by means other than fluid pressure plungers, and this axial movement may be effected automatically on reversal of rotation of the spindle a or by hand.
Patent GB-982155-A (GB)
Title: Improvements in or relating to aerial systems
Inventor: WOLOSZCZUK EDMUND WERGILIUSZ
IPC: H03K3/33
Filed: 1962-08-21
Abstract: 982,155. Aerials. MARCONI CO. Ltd. June 14, 1963 [Aug. 21, 1962], No. 31996/62. Addition to 939,790. Heading H4A. Relates to an aerial of the type described in the parent Specification, and comprises an active dipole whose halves A1, A2 are at right angles to each other and at forty-five degrees to the vertical, there being disposed adjacent to each an array of passive dipoles P arranged parallel to the nearest active dipole halves and spaced an odd number of quarter wavelengths apart, the passive dipoles being connected at one end to a ground sheet centrally disposed so that its two halves G1 G2 make an obtuse angle with each other. The aerial provides a radiation pattern having broad maxima at 180 degrees to each other over a wide frequency band with vertical polarization.
Patent GB-602074-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/157
Filed: 1945-11-27
Abstract: 602,074. Slicing-machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd. (Maatschappij van Berkel's Patent N.V.). Nov. 27, 1945, No. 32063. [Class 28(ii)] In a bread slicer in which the knife 5 has a combined revolving and bodily motion, the loading tray 8 is movable laterally from slicing position into a safe loading position. The slice receiving tray 9 is likewise movable into safe receiving position. Both trays are protected by sheet metal &c. guards 14 and 15 which prevent access to the bread during cutting. The bread is pushed forward step by step by a feed screw 13 and a nut 32 on the loaf holder. To insert a loaf the loading tray 8, supported by arms 21 on a shaft 16 is swung outward through the open side 26 of its guard 14 to dotted line position Fig. 2 where a loaf is inserted on its holder 28 and gripped by prongs 29. The feed nut 32 is thus disconnected from its feed screw 13. A torsion spring 23 helps to restore the tray to working position against stop pins 36. The loaf holder moves along a guide rod 30 during feeding. The receiving tray 9 may be similarly swung out to safety position to remove the cut slices by hand.
Patent GB-1261066-A (GB)
Title: Improvements in and relating to semiconductor devices
IPC: H01L21/00
Filed: 1969-06-25
Abstract: 1,261,066. Multilayer switching elements. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 25 June, 1969 [28 June, 1968], No. 32064/69. Heading H1K. To cut down edge leakage current, the central zone of a symmetrical multilayer switching element is made thicker at the outside of the element than in the centre. The diode shown is one of many cut from a single wafer produced by the following process. An N-type silicon wafer 6, 7 doped at 7.10<SP>17</SP> atoms cm.<SP>-3</SP> is coated with borosilicate glass which is then selectively removed except at the areas corresponding to the thick central parts of regions 5, 8. The wafer is then heated in the presence of powdered silicon doped with boron and of powdered silicon doped with arsenic. Boron from the glass diffuses into the wafer with a surface concentration of 5.10<SP>20</SP> atoms cm.<SP>-3</SP>; boron from the doped powder diffuses (mainly) into the exposed surface of the wafer with a surface concentration of about 7.10<SP>18</SP> atoms cm.<SP>-3</SP>; and arsenic from the other doped powder diffuses into the exposed surface of the wafer (only) with a surface concentration of 2.10<SP>19</SP> atoms cm.<SP>-3</SP>. The slow moving arsenic forms the N-type regions 11, 12. Nickel electrodes are applied across each major face by electroless deposition to short out the PN junction at those faces. The electrodes thus formed are provided with a gold coating, leads are connected, and the diode is provided with an envelope.
Patent GB-231228-A (GB)
Title: Improvements in coin freed mechanism for cigarettes, chocolate and the like collecting machinery
IPC: G07F5/02
Filed: 1923-12-21
Abstract: 231,228. Ayliffe, H. Dec. 21, 1923. Testing coins; diverting improper coins. -In coin-freed mechanism of the kind described in Specification 218,829 in. which a delivery drawer for cigarettes &c. is released by the use of milled edged coins, the coin inserted through a slot 1, Fig. 2, falls into an adjustably counterweighted bucket 4 which tilts over, if the coin is of correct weight, and delivers it to a shoot 7 leading to the operative position between a serrated edged disc 8 and a knife-edge 9 on a drawer locking lever 21, Fig. 3. Should the coin or a counterfeit be too light, the bucket 4 is tilted to discharge it to a return shoot 16 by the frictional action of a rubber tube 13 against the horizontal pivot 2 of the bucket. The tube 13 is passed over a spiral spring connected by a wire 14 to a crank 15 on a horizontal rod 10 which carries the disc 8 and is rotated by a knob 11. There: is sufficient slackness in the wire 14 to allow a curved piece of thin metal 17 carried by the disc 8, Fig. 6, to move over the shoot 7 before the bucket is tilted. The return shoot 16 is slotted and inclined sideways so that light coins of small diameter fall through it to the money-box. Coins heavier than a genuine coin tilt the bucket too rapidly and fall through an opening A to the money-box. Soft counterfeits which may have been delivered to the operative position, are dislodged by an L- shaped spring 18 carried by an arm 19 actuated by a cam 20 on the disc 8. A spurious coin of correct weight and sizei does not release the machine but rides over the disc 8 until a segmental cut away portion engages it, allowing it to drop through to the money-box. The bucket 4 is prevented normally from tilting until the rod 10 is rotated by a pawl 27<a> engaging a screwed extension 6. The pawl is carried by a pivoted arm 27 held in position by an arm 30 on the rod 10, which is made in two parts with lost motion between them to ensure that the bucket 4 is free to tilt before the disc 8 is rotated. Coin action, mechanical-connection.-A milled edged coin is pressed by the disc 8 which is eccentrically mounted on the rod 10 against the knife edge 9 on the lever 21, thereby moving the lever and releasing the delivery drawer.
Patent GB-200762-A (GB)
Title: Improvements in or relating to carving forks
IPC: A47G21/02
Filed: 1922-11-24
Abstract: 200,762. Street, G. H. Nov. 24, 1922. Carving-forks.-The tang d and the spring e for the guard c are formed in one piece, the end of the tang being inserted in the body band being split as shown.
Patent GB-1484202-A (GB)
Title: Servo-motors for vehicle braking systems
IPC: B60T13/573
Filed: 1974-07-20
Abstract: 1484202 Brake boosters GIRLING Ltd 7 July 1975 [20 July 1974] 32237/74 Heading F2F A brake booster having a movable wall 6 to opposite sides of which are applied differential pressures to provide a force augmenting the output has reaction means comprising an annular reaction plate 33 of corrugated outline which, in use, flexes to transmit a load from the wall 6 to the output member 31 and to transmit the reactive portion of the output load back to the input member 27 to provide "feel". The wall 6 comprises a diaphragm 9 and a piston part 7 which is provided with forwardly directed projections 36 each forming a fulcrum about which the plate 33 tends to turn and the output member 31 has connected thereto an annular abutment plate provided with projections 38 corresponding in number to projections 36. When the servomotor is energized wall 6 applies a thrust to output member 31 via fingers (34) of the plate which in turn react against a valve spool 28 to provide "feel" through member 27 the magnitude of the "feel" being determined by the relative radial distances between spool 28, fulcrum 39 and the fulcrum defined by projections 36.
Patent GB-752638-A (GB)
Title: Improvements relating to welding electrodes
IPC: B23K35/365
Filed: 1954-11-08
Abstract: A copper base alloy for the core wire of an arc-welding electrode contains 5-15 per cent nickel, 0,5-2 per cent iron, 0,05-1 per cent manganese, 0,2-1 per cent silicon, 0-0,08 per cent magnesium and 0-0,5 per cent other metals such as zinc and cobalt.  A flux forming coating for the core wire consists of 6-26 per cent calcium carbonate, 15-30 per cent calcium fluoride, 15-35 per cent cryolite, 20-30 per cent titanium, 1,7-8,5 per cent manganese, 0-1,3 per cent silicon, 2-10 per cent calcium or sodium silicate or both and 2-5 per cent bentonite held together by a water dispersible binder such as a mixture of solutions of sodium silicate and invert sugar.  The manganese and silicon in the coating may be in the form of ferro- 85 per cent manganese and nickel- 50 per cent silicon or ferro-silicon, respectively.
Patent GB-1461334-A (GB)
Title: Flocculant product process for preparing a curing agent for leukemia
IPC: C02F1/52
Filed: 1974-07-22
Abstract: 1461334 Gelatinized flocculant C H ROY 22 July 1974 [7 Sept 1973] 32332/74 Heading C1C [Also in Division C3] A mixture of a water-soluble polymeric flocculant, e.g. polyacrylamide, and an aliphatic water-soluble polyol is in the form of a self-supporting gel. The product can be suspended in a water-treating plant in a suitable container. The product dissolves more uniformly in water.
Patent GB-654821-A (GB)
Title: Manufacture of new hydrazine compounds and derivatives thereof
IPC: C07D237/34
Filed: 1948-12-14
Abstract: Hydrazines are obtained as in Specification 629,177, by treating a pyridazine having two exchangeable substituents in ortho-positions to the ring nitrogen atoms to replace such substituents by hydrazino groups; alternatively, the substituents (e.g. nitramino groups) are converted into hydrazino groups by reduction.  The exchangeable substituents may be the same or different and may be halogen, alkoxy, aryloxy, esterified hydroxy or thioether groups.  The substituents may be exchanged successively to introduce two different hydrazino groups and the two methods may be combined.  The starting materials preferably contain an aromatic nucleus, e.g. phthalazines; suitable materials are 1 : 4-dichlor-, 1 - chlor - 4 - methoxy -, 1 - chlor - 4 - ethoxy -, 1 - chlor - 4 - phenoxy -, 1 : 4 - diphenoxy -, 1 : 4 - dimethylmercapto - and 1 : 4 - dinitramino-phthalazines, and their nuclear substitution products.  Hydrazine itself may be used as reactant or a substituted hydrazine, in which one nitrogen atom may form part of a ring, e.g. piperidine or morpholine. Suitable substituted hydrazines are methyl-hydrazine, the two dimethyl hydrazines, propylhydrazine, allylhydrazine, N - methyl - N - butyl - hydrazine, N - amino - piperidine, N - amino - morpholine and 3 - methyl - cyclohexyl - hydrazine.  The hydrazines may be used as salts and the reaction may be carried out in the presence of a diluent, a condensing agent and a copper powder catalyst.  The reduction of nitramino groups to hydrazino groups may be catalytic or by means of zinc and caustic soda.  The products may be converted into salts (e.g. hydrochlorides) and, when they contain free amino groups, may be condensed with carbonyl compounds such as aldehydes and ketones. In examples, hydrazine hydrate is condensed with 1 : 4 - dichlor -, 1 - chlor - 4 - methoxy -, 1 - chlor - 4 - ethoxy - and 1 : 4 - diphenoxyphthalazines to give 1 : 4-dihydrazino-phthalazine and, in the first case, 1-hydrazino-4-chlor-phthalazine as an intermediate. 1 - Chlor - 4 - methoxy - and 1 - chlor - 4-ethoxy-phthalazines are obtained from 1 : 4-dichlorphthalazine and the corresponding sodium alkoxide.  1 : 4 - Diphenoxy - phthalazine is prepared from 1 : 4-dichlorphthalazine and sodium phenoxide.
Patent GB-190131-A (GB)
Title: Improvements in or relating to the purification of gases
IPC: C10K1/12
Filed: 1922-11-27
Abstract: 190,131. Koppers Co., (Assignees of Ramsburg, C. J.). Dec. 8, 1921, [Convention date]. Sulphur.-Hydrogen sulphide and other obnoxious gases such as hydrogen cyanide, carbon dioxide, &c. are removed from coke-oven gases &c. bv absorption in alkali, the latter being regenerated by interaction of the fouled liquor with hydrated iron oxide, basic ferric carbonate or other appropriate iron compounds with formation of iron sulphide. The latter is separated from the alkali which is returned to the process and is aerated in order to re-form the oxide and liberate the sulphur. According to an example of the method and apparatus, the impure gases, from which tar and ammonia have been removed if necessary, enter the scrubber A by the pipe 1 and the pure gases are discharged at the top by the pipe 2. Sodium carbonate solution entering by the pipe 3 is discharged into a tank 5 and thence to an agitator B into which is also delivered hydrated iron oxide by the pipe 9. The mixture of regenerated alkali and iron sulphide is pumped to a continuous separator C and the alkali thence to a filter E and storage tank 11 from which it is returned to the scrubber. The iron sulphide is pumped from the separator C to an aerator D where it is converted into a mixture of oxide and sulphur. This mixture is returned to the agitator. If desired the iron sulphide sludge may be filter-pressed and washed prior to aeration. From time to time the sludge is removed from the apparatus for separation of the contained sulphur and when necessary fresh iron oxide or fresh alkali may be added to maintain the required concentration.
Patent GB-506277-A (GB)
Title: Improvements in or relating to electrical stress grading devices
IPC: H01B9/02
Filed: 1937-11-24
Abstract: 506,277. Condensers; insulators and cable-end sleeves. STANDARD TELEPHONES & CABLES, Ltd., SCOTT, T. R., and WEBB, J. K. Nov. 24, 1937, No. 32387. Drawings to Specification. [Classes 36 and 37] A stress grading means capable of use in cable-ends, condenser -bushings, potential dividers, or hign tension condensers is prepared by winding sheets or tapes of fibrous insulating material, impregnated or surface impregnated with polymerized material such as polystyrene, into the desired form, inserting conducting layers between the convolutions during the winding and rendering the surface polymer of the fibrous material tacky and adhesive by applying polymerizable material therto so as to convert the assembly into a solid unit. The polymerizable material such as monomeric styrene may be applied to the surfaces in the course of winding or may be subsequently introduced as by immersion or impregnation. The conductive layers may be applied by spraying metal. Specifications 449,868; and 454,923, [Group VIII] are referred to and the Provisional Specification refers to Specifications 377,311, 464,801, 465,883, and 504,720.