baber/WOPTO huggingface dataset:
Patent GB-1372144-A (GB)
Title: Separation of soldered elements
IPC: H01L21/60
Filed: 1972-03-24
Abstract: 1372144 Soldering and unsoldering INTERNATIONAL BUSINESS MACHINES CORP 24 March 1972 [30 April 1971] 13811/72 Heading B3R In a method of separating two elements soldered together, e.g. an integrated circuit chip from a substrate, one of the elements is heated, an electrical signal is generated indicating the temperature of the heated element and a device is operated to displace the heated element from the other element in response to the electrical signal when a predetermined temperature of the element is reached. In a particular apparatus for carrying out the method, a low temperature pre-heater 20 is provided to reduce thermal shock in workpiece 24. Probe assembly 27 is lowered and a gas of a hydrogen/oxygen mixture saturated with acetone emitting from flame probe 30 is lit by a heated platinum wire 80 and directed towards chip 52, Fig. 3. Infra-red sensor 42 detects the temperature of the chip and an electrical signal indicating a predetermined temperature T 1  is transmitted from control box 74 which causes vacuum probe 28 to pick up chip 52. At a second and higher temperature T2, the assembly 27 is raised and the flame is blown out by air jet 48. Chip 52 may be released by operating a manual switch S2 which causes air to be blown through vacuum probe 28. The apparatus is actuated pneumatically and controlled by switches and relays. It may also be used to replace chips with the aid of a stereoscopic microscope 16 and a half-silvered mirror 18 for alignment purposes.
Patent GB-998083-A (GB)
Title: Multi-frequency code receiving device with speech-immunity receivers
IPC: H01M8/24
Filed: 1964-04-03
Abstract: 998,083. Speech immunity circuits. STANDARD TELEPHONES & CABLES Ltd. April 3, 1964 [April 6, 1963], No. 13826/64. Heading H4R. A multi-frequency code receiving equipment comprises a number of receivers equipped with speech immunity circuits the outputs from which, i.e. E1 to En, Fig. 1, are fed to a code checking equipment C which gives an output D on receipt of a signal by any, or any particular combination, of the receivers. The output D initiates the operation of two timing devices Z 1 and Z2. Z1 produces an output after a delay tp if the output on D is maintained during this time, and this output X1 via an " OR " gate O provides an enabling input to the " AND " gates U1 to Un and thus passes signals from the receivers to the evaluating device in accordance with the received signals, the " AND " gates being self-holding on their receiver inputs since their outputs are coupled back to the inputs of " OR " gates O to On. When the received signals cease, signal D ceases, but the output X2 of timing circuit Z2 is maintained for a time tv, thus the enabling signal B is maintained for this time. The time tv is arranged to be just less than the minimum possible gap between signals and thus ensures that a gap in the received signal of less than the time tv has no effect on the signals A1 to An passed to the evaluating means and the register. A number of inhibit gates may be provided between the receivers and the " OR " gates O1 to On which gates are blocked by the signal B and thus prevent spurious signals on the receiver outputs from affecting the signals to the register during the evaluation period. The invention is a modification of the code receiving system described in Specification 980,155.
Patent GB-489977-A (GB)
Title: A process for the manufacture of rubber chloride varnishes
IPC: C09D115/02
Filed: 1937-02-05
Abstract: In the manufacture of varnishes, enamels, and the like, chlorinated rubber is plasticized by an ester containing a halogen or ether group, but not more than one ester group, the amount of plasticizer being insufficient to liquefy the rubber chloride. Generally 5-30 per cent on the weight of the chloride is added. Numerous examples are specified including, mono and di esters of dichlorhydrin and the following acids: benzoic, phthalic, lauric, myristic, caproic, palmitic, stearic, succinic, glutaric, adipic, acrylic, allyl acetic, undecylenic, crotonic, methyl-crotonic, nonylenic, ethidine and butylidine acetic, ethidine and hexenic propionic, propylidene teracrylic and decylenic propionic, hypogaeic, oleic, fumaric, maleic, glutaconic, and the fatty acids of sperm oil.  A long list is also given of aliphatic esters of ether alcohols such as the oleates, palmitates and stearates of ethers of ethylene glycol; methods of preparing them are described in U.S.A. Specification 2,010,560.  The rubber chloride is suitably that prepared according to British Specification 489,954. According to an example, to 1000 parts of toluol and 240 parts of xylol are gradually added 420 parts of rubber chloride.  This is thinned with 240 parts of solvent naphtha in which is dissolved 104 parts of cumar-indene resin.  100 parts of methoxyethyl oleate are stirred in to give a brushing varnish drying in 0,5 hours.
Patent GB-653861-A (GB)
Title: Improvements in or relating to tubular scaffolding
IPC: E04G7/02
Filed: 1948-05-24
Abstract: 653,861. Tube and rod joints. MALTHOUSE, E. G. May 24,1948, No. 13945 [Class 99(i)] [Also in Group X] For the purpose of introducing the ends of a tube 19 into spaced, fixed sockets 18, 20 of tubular scaffolding the tube is a loose fit in the socket, which is cut away to leave a substantially semi-circular projection 9. The tube is put into the socket 18 with its inclined end 10 parallel with the inclined edge 7 of the socket and pushed in until its other end can fall into the socket 20. The tube is rotated 180 degrees and pushed back until holes in tube and sockets are in alignment for the introduction of U-shaped locking-pins 16. The standards 17 have their sections connected by spigots 25 and U- shaped pins (not shown) engaging holes 50. Diagonal bracing members 60, Fig. 10, are secured by a T-piece 61 of which the leg has a cut-away socket, and the head fits as a sleeve on the tube 19 and into the socket 58. Alternatively the diagonal bracers have their ends secured to sleeves which fit over the ends of the standards and are secured by pins which fit into holes 53, Fig. 5.
Patent GB-346592-A (GB)
Title: Improvements relating to four-stroke-cycle internal-combustion engines
IPC: F02B41/04
Filed: 1930-05-06
Abstract: 346,592. Converting reciprocating into rotary motion. BONFA, A., 608, Umbilo Road, Durban, South Africa. May 6, 1930, No. 13966. [Class 80 (i).] In a four-stroke-cycle engine the connecting-rod works on a crank pin 15 to rotate two spindles 6 mounted in a cam disc 11 and flywheel 10 ; pinions 7 on the spindles gear with internally toothed wheels 8, the wheels having three times as many teeth as the pinions. As the crank arm 20 is longer than half the diameter of the pinion pitch circle, the crank pin moves in a major hypotrochoidal curve 21. Fig. 2. giving either short suction and compression strokes relative to the expansion and exhaust or vice versa according to the direction of running of the engine. By an asymmetrical mounting of the cylinder on the crank case the loops of the curve are made asymmetric.
Patent GB-388008-A (GB)
Title: Improvements in oars
IPC: B63H16/04
Filed: 1931-05-12
Abstract: 388,008. Oars. AVIET, G. A. E., 20, Paton Street, South Kensington, near Sydney, Australia. May 12, 1931, No. 13972. Convention date, July 11, 1930. Void [Published under Sect. 91 of the Acts]. [Class 114.] The oar loom 4 is encircled by a cylindrical rubber sleeve 5 having a flange 6 to butt against the rowlocks. The sleeve is clamped by the bands 11. In a modification these bands-are dispensed with. In a further modification the flange 6 is replaced by a small projection to engage a thole.
Patent GB-419458-A (GB)
Title: The manufacture of neutral, water-soluble derivatives of aminoarylarseno-stibio compounds
IPC: C07F9/92
Filed: 1933-05-13
Abstract: Arylarseno-stibio compounds containing substituted amino groups are prepared by treating arylarseno-stibio compounds of the benzene series, which contain at least one amino group in each nucleus, with an alkylene oxide or derivative thereof and with formaldehydebisulphite or formaldehyde-sulphoxylate, simultaneously or consecutively, in the presence of a solvent. Alternatively, the treatment with the alkylene oxide compound and with the formaldehyde compound may precede, or partly precede and partly follow, the formation of the arylarseno-stibio compound by interaction of an aminophenylarsine with an aminophenylstibine oxide or halide.  All the steps are carried out substantially in the absence of oxygen. The products, which may be subsequently treated with more alkylene oxide, an neutral water-soluble compounds of therapeutic value. According to the examples, (1) 4-hydroxy-3-aminophenylarsine acetate is treated with glycide, the product reacted with 4-hydroxy-3-aminophenylstibine chloride in methyl alcohol, and the arseno-stibio compound then treated with formaldehyde-bisulphite to give 4-hydroxy-3 - dihydroxypropylamino - 4<1> - hydroxy - 3<1> - (formaldehyde - bisulphite - amino) - arseno - stibiobenzene; the use of ethylene oxide, propylene oxide and formaldehyde-sulphoxylate is referred to; (2) 4-carbamino-3-dihydroxypropylamino-phenylstibine oxide is prepared by treating 4 - carbamino - 3 - aminophenylstibine chloride with glycide in methyl alcohol and reacted with 4-hydroxy-3-aminophenylarsine acetate in methyl alcohol to give 4-hydroxy-3-amino - 4<1> - carbamino - 3<1> - dihydroxypropyl - amino-arsenostibiobenzene, which is then converted into its formaldehyde-bisulphite compound; (3) 4 : 4<1> - dihydroxy - 3 : 3<1> - diaminoarsenostibiobenzene, prepared by interaction of 4-hydroxy-3-aminophenylstibine chloride and 4-hydroxy-3-aminophenylarsine, is treated in aqueous solution first with glycide and then with formaldehyde and sodium bisulphite.  The sample is prepared by treating 4-hydroxy-3-aminophenylarsine acetate with diethylaminopropylene oxide, reacting the product with m - amino - p-carbamidophenylstibine chloride, and treating the resulting arsenostibio compound with formaldehyde-bisulphite.  The use of butylene oxide is mentioned.  Specifications 178,824, 226,686, and 326,537, [all in Class 2 (iii)], are referred to.  The Specification as open to inspection under Sect. 91 refers also to the use of glucosane and dimethylaminopropylene oxide as alkylene oxide derivatives, and to alkylene oxides containing a chain of 3 to 6 carbon atoms.  It also states that hydroxypropylaminophenylstibine chloride and 4-aminophenylarsine may be used in the process of (2) above.  This subject-matter does not appear in the Specification as accepted.  4-Carbamino-3-aminophenylstibine chloride is obtained by nitrating4-carbaminophenylstibinic acid and reducing the 3-nitro product with stannous chloride in the presence of aqueous hydrochloric acid.
Patent GB-632648-A (GB)
Title: Improvements in or relating to electrical musical instruments
IPC: G10H3/00
Filed: 1946-05-09
Abstract: 632,648. Electrical musical instruments. COMPTON ORGAN CO:, Ltd., J., and BOURN, L. E. A. May 9, 1946, No. 14040. [Classes 40 (ii) and 88 (ii)] In a generator for an electrical musical instrument in which the waveform is of complex form, the wave envelope for a given tone is determined by recording the actual tone to be reproduced, analysing it to ascertain the proportions of constituent harmonics and constructing a wave having the same proportions of harmonics but with predetermined phase relationships. In one embodiment all harmonics are in phase with their associated fundamental and the various fundamentals are all arranged so that there is a common instant of time for the zeros of all the harmonics of all the waveforms. By this means interference between the various harmonics and the consequent undesirable effect on the resultant tone is avoided. Specifications 403,444 and 433,050 are referred to.
Patent GB-563624-A (GB)
Title: Improvements in and relating to adhesive compositions
IPC: C09J131/02
Filed: 1942-10-07
Abstract: Adhesive coating and laminating compositions are obtained by blending 10-50 per cent of a polyvinyl ester (polyvinyl acetate, hydrolysed polyvinyl acetate) or polyvinyl acetal with 50-90 per cent of the reaction product of endomethylene tetrahydrophthalic anhydride (" Carbic anhydride ") and polyhydric alcohols having two or three hydroxyl groups and the reaction product of maleic anhydride and polyhydric alcohols having three or four hydroxyl groups, the carbic anhydride reaction product being present in a major amount.  The components are blended in solution in solvents, e.g. alcohol, mixtures of alcohol and toluene.  The carbic anhydride reaction product and the maleic anhydride reaction products are described in Specifications 558,136 and 558,656.  The adhesive may be used for uniting laminations of steel, mica, glass, fibre, asbestos.  800 parts carbic anhydride, 200 parts maleic acid and 424 parts glycerine are heated under reflux for 2 hours at 180 DEG  C., the product is dissolved in alcohol and 20 parts polyvinyl acetate are added to 80 parts of the solution.
Patent GB-1218142-A (GB)
Title: Improvements in and relating to clothes ironing apparatus
Inventor: REBISCOUL GERARD
IPC: D06F71/28
Filed: 1969-03-18
Abstract: 1,218,142. Trouser pressing apparatus. G. REBISCOUL. 18 March, 1969 [18 March, 1968], No. 14145/69. Heading D1A. Air and steam are supplied to a hollow body 26 and through an outlet 27 to the inside of trousers suspended from body 26 and also to perforated channels 28, 31 suspended from the body 26 with the apices of their triangular cross-sections facing, pivoted flaps 34 being provided to hold the trousers against the channels 28, 31. Body 26 is connected through a rotary connection 13 with steam and air injecting means. The metal channel 28 is connected by a flexible sheath 32 to the second metal channel 31. The flaps 34 are lined with silicone rubber or wire brush and are biassed against their respective channels. Channel 31 is adjustable at the top and bottom relative to channel 28. The trousers 38 are positioned by engaging the front creases in clips 40 engaging hook 36 in the rear of the trouser waist and engaging flaps 34 on the trouser creases. Steam is then blown through opening 27 and into channels 28, 31.
Patent GB-906963-A (GB)
Title: Positioning control system for machine tools
IPC: B23Q5/36
Filed: 1960-04-22
Abstract: 906,963. Drilling and boring-machines; punching. DE VLIEG MACHINE CO. April 22, 1960 [April 24, 1959], No. 14175/60. Classes 83 (3) and 83 (4). [Also in Groups XXXVII and XXXVIII] A machine tool, e.g. a boring-mill, drill-press or punch-press, comprises a base 11, Fig. 2, a work-or tool-table 13 movable in opposite directions on the base by a motor to position the table in accordance with dimensions, from a datum, fed into a device 15 controlling energization of the motor. The device is mounted either on the table or the base and includes a sensing head 23 co-operating with magnetized pins 21 spaced, e.g. 1 inch apart, on a bar 19 mounted either on the base or the table, respectively. The machine is set up, when a workpiece is clamped on the table, to a datum, which may be a line on the drawing from which the dimensions are given, and counters 167, 169, 83, 85, 99 are set to zero by rotating knob 66 for counters 83, 85, 99, and knob 105 for counters 167, 169. Then block 57 is adjusted by screw 193 to centre head 23 on the nearest pin 21. Dimensions to the right of the datum are fed to counters 167, 83, 99. and to the left of the datum to counters 169, 85, 99, and set the position of a cam 139 controlling switches LS1, LS2. The cam is driven from a rack 137 on the table to be restored to a central position, when the table approaches the desired position, where it actuates a selected one of the switches. A lever 95 is moved to position a shutter over that one of the counters 83, 85 not used and simultaneously actuates a switch SW1, Fig. 5, to place either LS1 or LS2 in circuit. The sensing head 23, Fig. 4, is supplied with alternating current from a source 37 and until centred relatively to the appropriate pin 21 supplies a signal to an amplifier 43 which, via transformer 46, feeds a circuit including a relay AR with contacts ARa in a circuit including relays TS, TF controlling the motor speed via different windings, a solenoid 22 controlling a change-speed gear, and relays TR, TL controlling the direction of rotation of the motor. A positioning movement is then started by momentarily closing switch SW2 and can be stopped at any time by opening a switch SW4. Closing switch SW2 energizes relay CR1 and the table moves at a slow speed and after a delay the speed is increased until cam 139 actuates selected switch LS1 and LS2, and de-energizes relay CR1 and energizes further relays causing reversal of the motor and a reduction in speed due to overrun. When the sensing element overruns the selected pin on the reverse direction and to a less extent, contacts ARa close to energize relay CR100 to reverse rotation and reduce speed and this is repeated until the table approaches the position at its slowest speed.
Patent GB-886315-A (GB)
Title: Improvements relating to electrical turbo generators
Inventor: TUDGE JOSEPH
IPC: H02K3/22
Filed: 1957-05-03
Abstract: 886,315. Electricity generators. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 1, 1958 [May 3, 1957], No. 14191/57. Class 35. In an electrical turbo generator having a stator winding comprising a plurality of bars each formed, Fig. 5, by a plurality of hollow conductors 10, circulating water is conveyed from passages 11 in the conductors to manifolds 8, Fig. 1, at each end of the generator by P.T.F.E. tubing connectors 7 each of which so connects all the passages of its appropriate bar that the water flows are in parallel. The conductors are transposed in the slot portions and their ends are coupled to the connectors 7 by a header 13 secured to an insert 15 and swaged-over sleeve 17. Copper connections 18 brazed to the bar end 19 form the end electrical connections. The water may be ordinary supply water or distilled water, e.g. the condensate from steam turbo generator sets, and there may be for each phase a separate manifold 8 at each end of the machine. Fans 4, 5 circulate air or other gas e.g. hydrogen around the exterior of the rotor and stator conductors.
Patent GB-687708-A (GB)
Title: Improvements in or relating to band saw sharpening machines
IPC: B23D63/12
Filed: 1951-06-15
Abstract: 687,708. Sharpening band saws. ALBER, R. June 15, 1951 [June 15, 1950], No. 14216/51. Class 60. In a band saw sharpening machine having at least two grinding discs, the discs are arranged parallel to each other and in such a manner that the disc nearest to that part of the saw running away from the discs grinds only the backs of the teeth, whilst the other disc or discs grinds or grind the faces of the teeth and also the backs of the teeth. The distance between the faces 7, 8 of the discs 1, 2 directed toward that part of the band saw 4 runing away from the discs is less than the pitch b of the teeth; the disc 2 is thinner than the disc 1; the distance between the faces 9, 10 of the discs 1, 2 opposite to the faces 7, 8 is equal to the pitch b of the teeth. The disc 1 thus grinds the face 11 of the tooth 14 leaving a wire edge 12 whilst the disc 2 is not in contact with the face of the preceding tooth 13. The disc 1 then grinds the back 16 of the following tooth 15, and the disc 2 grinds the back 16 of the tooth 14 and turns over the wire edge 12 left by the grinding of the face 11 of the tooth 14. An arrangement with three discs is also described.
Patent GB-1360528-A (GB)
Title: Self-erecting device or container particularly as a toy adverti sing device or the like'
IPC: G09F1/04
Filed: 1972-03-27
Abstract: 1360528 Toys REFEKA WERBEMITTEL GmbH 27 March 1972 ]14 July 1971] 14233/72 Heading A6S [Also in Division G5] A self-erecting double pyramid is produced from a cardboard blank as in Fig. 2 (not shown) comprising two pyramid blanks with a common base edge and provided with non- hardening adhesive coated strips 8, 9 by means of which the blank is formed into a flat packet as in Fig. 3, with the two vertices 13 in contact, from which the double pyramid being erected under the influence of a rubber band 10 hooked over cut outs in the strips 8 inside the device. The erected double pyramid can be flattened again into the configuration of Fig. 3 by forcing the two vertices 13 together against the force of the rubber band 10. Non- hardening adhesive coated regions 12 inside the vertices 13 hold the vertices together temporarily until the rubber band 10 overcomes the adhesion and pulls the device back into the double pyramid shape. The device may be used as a toy. It is folded flat and placed on a base suport. A small object is placed in one of the regions defined by the markings at the vertices 13 which form a circle in the erect device. When the rubber band 10 erects the device, the device swallows the object. Alternatively, in a fishing game a dummy bait suspended from an imitation fishing hook replaces the small object; and the device is coloured to represent a fish.