baber/WOPTO huggingface dataset:
Patent GB-1139276-A (GB)
Title: Arc spot welding system with automatic penetration control
IPC: B23K9/095
Filed: 1967-09-06
Abstract: 1,139,276. Welding by fusion. WELDING RESEARCH Inc. 6 Sept., 1967 [25 Nov., 1966], No. 40676/67. Heading B3R. [Also in Division G1] The current to an arc spot welding electrode is cut off at a predetermined weld penetration by means responsive to the level of radiation from the weld. Workpieces 12, 13 are welded together by a tungsten electrode 10 in an inert atmosphere in cup 15. Infra-red radiation from the weld passes through an aperture 25 in a replaceable plug 24 and is reflected by a mirror 26 on to a photo-electric cell 30. When the radiation intensity reaches a predetermined level, an operational amplifier 50 conducts to fire a silicon controlled rectifier 60. Relay contacts 63 close to switch off or initiate a progressive reduction of the welding current. When the current has fallen to a predetermined level, relay 20 drops out to reset the silicon controlled rectifier for the next weld.
Patent GB-908699-A (GB)
Title: Improvements in or relating to amplifying circuits
IPC: H03F3/52
Filed: 1958-12-17
Abstract: 908,699. Valve amplifying circuits. VAKUTRONIK VEB. Dec. 17, 1958 [June 25, 1958], No. 40704/58. Class 40 (6). An amplifier comprises a valve V1 to which negative feedback is applied by means of a load R formed of at least two resistors R1, R2, means V2 being provided for amplifying the signal across the resistor R 1 and applying it across the second resistor R2, and a capacitor being connected in series with the input to V1. As described, the amplifying means V2 comprises a second valve, the two valves being either separate triodes, or the two halves of a double triode. The circuit parameters are preferably adjusted to make the product S01, S02, R1, R2 a maximum, where S01, S02 are the mutual conductances of the valves.
Patent GB-902972-A (GB)
Title: Apparatus and methods for doffing and donning textile bobbins
IPC: D01H9/00
Filed: 1958-12-17
Abstract: 902,972. Doffing and donning mechanisms. DEERING MILLIKEN RESEARCH CORPORATION. Dec. 17, 1958 [Dec. 17, 1957], No. 40764/58. Class 120 (2). Apparatus for doffing and donning bobbins comprises a yarn package holder 19 for grasping the central periphery of a yarn package P and a bobbin holder 21 for grasping the end of an empty bobbin B, the holders being mounted on a carrier 11 which is lowered to grasp the package P, then raised, moved horizontally, lowered to donn the bobbin B and raised again for removing the package P from its holder 19. Preferably a number of package and bobbin holders are mounted alternately on a common carrier and arranged in alignment or, for packages of large diameter, in staggered relation with the package holders positioned on and the bobbin holders off-set from the longitudinal central axis of the carrier. Each package holder 19 comprises an elastic tube 29 secured at either end to a rigid tube 23, which is fixed to the carrier 11 by brackets 25, to form a chamber 35. Air pressure is supplied from source 43 via a valve 41 and conduits 37, 39 to enlarge the chamber 35 so that the tube 29 grips the package P for doffing Each bobbin holder 21 comprises an inverted cup 47 of rubber with a skirt 51 for guiding the end of a bobbin B into contact with an inner gripping surface 59 profiled so that a greater force is necessary to release than to insert the bobbin. A plunger 57 carrying a disc 55 is lowered to eject the bobbin B by means of air pressure supplied from the source 43 via a valve 73, the interior of the carrier 11 and an aperture 61 to a chamber 75 sealed by a rubber washer 77. In a modification for ring spinning on to a weft bobbin, Fig. 6, several -wraps of yarn are wound on to a groove 81<SP>1</SP> formed between the package P<SP>1</SP> and the bobbin base 83<SP>1</SP> and pulled off the bobbin during doffing so that they form transfer turns about the empty spindle. The carrier is then moved and lowered until the package P<SP>1</SP> rests on the ring rail, as shown in Fig. 6, the package P<SP>1</SP> released from its holder 19<SP>1</SP>, the carrier further lowered to seat the empty bobbin B<SP>1</SP> on its spindle and the holder 19<SP>1</SP> then re-inflated to grip the groove 81<SP>1</SP> so as to prevent further removal of yarn from the package and to break the yarn when the carrier is again raised. This method may be adapted for use with a warp bobbin by mounting a block on the ring rail to support the package while seating the bobbin on its spindle. Specifications 902,974 902,975 and 902,976 are referred to.
Patent GB-1338748-A (GB)
Title: Control panels and dial setting means therefor
IPC: G01D13/22
Filed: 1972-09-04
Abstract: 1338748 Indicating apparatus ERWIN KAMPF MASCHINENFABRIK 4 Sept 1972 [2 Sept 1971] 40890/72 Heading G1J A control panel 1, e.g. for web or film processing machinery, has dial heads 2-7 the setting of which in predetermined positions is facilitated by a template 17 having apertures 18 to fit over the dial heads, notches 19-22 or recesses 23, 24 in the aperture boundaries being engageable with projections 8 on the dial heads when the latter are correctly positioned. The recesses 23, 24 allow limited adjustment of the associated dial heads. As shown, the template 17 depresses a plunger 11 when it is seated on the panel 1, which can only occur when the dial heads are correctly positioned, to close contacts 12 in the main circuit of the controlled machinery. The template may be secured to the panel by bolts 26. A set of templates are provided to meet various operating requirements.
Patent GB-1496372-A (GB)
Title: Electroluminescent device
IPC: H05B33/12
Filed: 1975-10-07
Abstract: 1496372 Electroluminescence OSRODEK BADAWCZO-ROZWOJOWY MONOKRYSZTALOW WARSZAWA and UNIWERSYTET WARSZAWSKI INSTITUT FIZYKI DOSWIADCZALNEJ WARSZAWA 7 Oct 1975 [10 Oct 1974] 40905/75 Heading C4S [Also in Division H1] An electroluminescent device includes cadmium fluoride crystals doped with a trivalent element (e.g. 0À2 to 0À5 mole per cent) and with Mn (e.g. 0À1 to 5 mole per cent). Electron concentration may be >10<SP>15</SP> cm.<SP>-3</SP>. The devices may be metal-semiconductor or metal-insulator semi-conductor. Crystal transparency wavelengths, resistivity (e.g. 1 # cm. for n-type), quantum efficiency, and reflection coefficient are exemplified. Conductivity is achieved by doping with Mn and Sc, then annealing the crystals in Cd vapour. In or Ga may replace the Sc. Resistance is controlled in the range 1 to 10<SP>4</SP> # cms. by the additive concentration as well as time and temperature of annealing in the Cd vapour. Efficiency and luminescent homogeneity were examined by observing electroluminescence in an electrolytic cell. Ohmic contacts were obtained by In penetration into a freshly-etched crystal surface. Etching procedure is specified, and before contact setting, the samples were moistened with Hg-In amalgam. In an MIS device, an isolating layer may be of calcium fluoride or cadmium fluoride and the blocking layer of Au or Ag. The electroluminescent spectrum may reach a maximum of about 520 nm. and coincide with the photoluminescent spectrum.
Patent GB-855254-A (GB)
Title: Fabric packaging machine
Inventor: MARSH CHARLES WOODWORTH
IPC: B65H54/62
Filed: 1958-12-22
Abstract: 855,254. Winding apparatus. BURED Inc. Dec. 22, 1958, No. 41320/58. Class 120(2). [Also in Group XVII].  A boot lace or like winding and banding machine comprises a magazine into which pairs of the laces are fed by hand, and a conveying device which carries pairs of laces in turn to a. winding device for forming a hank, and transfers a previously formed hank to a banding mechanism where a strip of paper &c. is secured round it. The magazine 10 (Figs. 1, 2, 4) comprises a series of grippers 32, 33 on an intermittently rotating disc 30, the grippers being opened by a pin 224 acting on the ends 34 of jaws 33 to permit the conveyer 11 to remove the laces 1. The pairs of laces are guided into the grippers by members 53, 54, the former being fixed and each one of the pair is temporarily separated to remove twists by passing on either side of a plate 57 during transit to the conveyer. The conveyer 11 (Figs. 1, 2, 4, 11, 13, 39, 41) comprises a frame 61, 611 reciprocated by cam and lever means 100, 111-113, 119 on rails 99 parallel to the axis of rotation of the magazine. Pivoted in the frame are rods 63, 64 carrying pairs of jaws 69 and 75. The jaws 69 grip the lace ends protruding towards the conveyer from the grippers 32, 33 and pull them through a tensioning device 225 to a position above a pin 133 of the winding mechanism. At the same time the jaws 75 grip a hank which has just been released from the pins 133 and transfers it to the wrapping position. The winding mechanism 12 (Figs. 1, 2, 17, 18, 39, 41, 44, 46) comprises the pair of pins 133 slotted at their upper ends and mounted on a rotatable plate 132 which is also vertically slidable along the axis of the drive shaft 134. Mounted on the shaft 134 are plates 126 and 128 joined by sleeves 127 in which the pins may move. The pins are located along the axis of the conveyer travel during application of the laces by a pivoted stop 142 engaging the plate 126 and are initially withdrawn below the plate 128. A third slotted pin 194 mounted on levers 200, 201, lever 200 having its movement in the horizontal plane controlled by a cam 211, is arranged with its supporting levers to move vertically with the pins 133. The jaws 69 pull the laces through the tensioner 225 and support them to be engaged in the slots of the pin 194, and the pin 133 adjacent the latter as the pins rise. The winder-now rotates, the lever 200 initially being held stationary by the cam 211 and finally being released so that the pin 194 may be pulled with the lace ends into one of a series of deep slots 129 in the plate 128. Jaws 75 now grip the hank and the pins are retracted downwards. The next stroke of the conveyer carries the bank over the wrapping mechanism (see Group XVII). The machine is adjustable for various lengths of lace, the rotations of the winder being control led through change speed mechanism and as above stated, a series of slots'being provided in the plate 128.
Patent GB-1130677-A (GB)
Title: Loom
IPC: D03D47/00
Filed: 1967-09-12
Abstract: 1,130,677. Shuttleless looms. ADOLPH SAURER Ltd. 12 Sept., 1967 [28 Sept., 1966], No. 41495/67. Heading D1E. A brush or rubber pad 6 engages the weft carried by a dummy shuttle 3 and is then moved downwardly to trap the weft against the front edge 7 of the sley. The downward movement is produced by a cam 8 and a rotational movement of the brush or pad 6 to release the weft just before heat up is produced by a pin 16 riding in an angled slot 16, 21. When the weft is released it is held at the felt by suction nozzles (24). The weft is inserted in hairpin form and the edges of the fabric may be trimmed during or after weaving.
Patent GB-1214949-A (GB)
Title: Apparatus for heating a target in an electron beam furnace
IPC: H01J37/305
Filed: 1968-08-30
Abstract: 1,214,949. Electron beam furnaces. AIR REDUCTION CO. Inc. 30 Aug., 1968 [13 Sept., 1967], No. 41551/68. Heading H1D. An electron beam furnace comprises an electron gun 16, Fig. 1, adapted to produce at least two electron beams and disposed in a compartment 14 separated from the compartment 13 containing the crucible 21 by an apertured partition 12, the two compartments being evacuated by separate pumps (not shown) to prevent vapours evolved from the target material 19 affecting the electron gun; the system is characterized by the provision adjacent the electron gun of two bowed magnetic fields 56 and 57, Fig. 3, produced by pairs of polepieces 34, 36 and 37, 38 energized by coils 39 and 41, and of a third opposing field produced by a coil 52. The fields 56 and 57 serve to focus and deflect the respective beams, whilst the coil 52 serves to establish a field 58 between the outer polepieces which causes the two beams 17 to converge, for example on the aperture 18, Fig. 1. Each electron source may comprise an elongate tungsten wire 42 or 43 disposed in a recess 44 or 47 in a negative shaping electrode 46 or 48 in front of which is arranged an earthed accelerating electrode 46a or 48a. After the beams pass through the aperture 18, Fig. 1, they pass between two quadrant shaped polepieces, of which one 26 is shown in Fig. 1; these polepieces are joined at the top by a low reluctance web 31 and by two coils (28 and 29, Fig. 2, not shown) which are separately energized to control the strength and direction of the field between the polepieces. This field focuses the beams in a vertical direction and may also be used to vary the longitudinal position of the impact area on the surface of the molten material 19 or to cause the beam to strike the end of the feedstock wire 23 which is fed by a mechanism not shown. The crucible 21 may be provided with coolant passages 22 for forming a layer of solid material between the liquid material and the crucible.
Patent GB-1280110-A (GB)
Title: Shock absorber
Inventor: BELL HAROLD WRIGHT
IPC: F16F9/48
Filed: 1970-08-28
Abstract: 1280110 Shock absorbers NORTH AMERICAN ROCKWELL CORP 28 Aug 1970 41639/70 Heading F2S A shock absorber 30 has a piston 2 with tapered peripheral axial grooves 9 which cooperate with parts 8 in the cylinder 1 to restrict the flow of fluid from the cylinder. The shock absorber is also required to have a guide tube 4 received slidably but non-rotatably in a well in the piston 2, and a spring 3 disposed around the guide tube 4 between an end 33 of the cylinder and the piston to bias the shock absorber into its extended position. The shock absorber is used in a liquid medium.
Patent GB-1016852-A (GB)
Title: Elastic yarn and method of making the same
IPC: D02G3/32
Filed: 1962-11-05
Abstract: 1,016,852. Yarns: yarn processing. PARAYARN ELASTIC CO. Nov. 5, 1962 [March 20, 1962], No. 41670/62. Heading D1F and D1W. The method of making a truly balanced elastic yarn C comprises helically winding an untwisted, inelastic cover thread A about an untwisted, elastic core filament B. When thread A and filament B are wound on spools 10 and 12 they are twisted so as to cancel out the eventual twist produced in there when they are end unwound from the spools. By untwisted it is meant with regard to thread A that it is not twisted during formation of yarn C rather than that the constituent fibres thereof are not intertwisted. In an Example filament B is a spandex yarn having a potential 600 per cent elongation and is stretched and permanently set to about a 300% elongation by virtue of the air resistance during winding from spool B. Thread A may be of cotton.
Patent GB-1475365-A (GB)
Title: Radiofrequency pulse generation system and method
IPC: H03K3/02
Filed: 1974-09-25
Abstract: 1475365 Radio pulse generation MEGAPULSE Inc 25 Sept 1974 [15 Nov 1973] 41690/74 Heading H4D To generate a pulse of radio frequency energy, in particular a pulse for transmission in a LORAN C navigation system and having a predetermined shape-especially leading edge, two pulse generators 1, 2, Fig. 1, respectively produce a positive half cycle iPG1 and a negative half cycle iPG2 with relative timings such as to combine in a coupling network 3 into a whole cycle, the transfer function of the coupling network 3 and a load (e.g. antenna 4) coupled thereto being such that with impulse excitation of the coupling network 3 the shape of the leading edge of the pulse appearing at the antenna 4 is controlled by the input whole cycle, whilst the shape of the rest of the pulse (not so important in practice) is controlled by said function. The relative timings and amplitudes of the half cycles are controlled in a retroactive fashion by means 7, 8, 9 which also compensate for temperature, humidity &c. changes in the antenna characteristics. The coupling network may comprise a single tuned circuit Fig. 4 (not shown) tuned to the cycle, a variable characteristic shunt network, Fig. 5 (not shown) enabling it to act as a capacitor or inductor or a combination thereof and alter the pulse shape. In LORAN C, the pulses are transmitted in groups of eight, with relative phases, i.e. 0 or 180 degrees changing from group to group according to an identifying enabling code. Such inversion of phase is readily achieved by reversing the relative timings of the half cycles. The trailing edge of the pulse is changed from oscillatory to exponential decaying by a damping "tail biter" circuit 5.
Patent GB-1396933-A (GB)
Title: Waterinsoluble mono and disazo dyestuffs and process for their preparation
IPC: C08L27/00
Filed: 1972-09-08
Abstract: 1396933 Water-insoluble mono- and dis-azo dyestuffs HOECHST AG 8 Sept 1972 [8 Sept 1971] 41864/72 Heading C4P Novel dyestuffs of the formula (wherein the azo group is meta or para to the sulphonamide group; X 1  and X 2  are each H, C 1-4  alkyl or alkoxy or halogen; R is H, halogen, CH 3 , C 2 H 5 , OCH 3  or OC 2 H 5 ; n is 1 or 2; and A is a radical of the benzene, naphthalene or benzimidazolone series when n is 1 and a radical of the benzene or diphenyl series when n is 2) are prepared by coupling a diazo compound of an amine of the formula with a coupling component of the formula Coupling may be effected in an aqueous or organic medium possibly in the presence of a dispersing agent, e.g. the reaction product of stearyl alcohol with 20 mols. of ethylene oxide, and the dyestuff obtained may be subjected to an after-treatment (to obtain full colour intensity and a favourable crystal structure) such as heating with water or an organic or aqueousorganic liquid, e.g. glacial acetic acid, pyridine, DMF, DMSO, alcohol, mono- or di-chlorobenzene, nitrobenzene, quinoline or glycol, possibly under pressure. The novel dyestuffs may be used for preparing coloured lacquers, lacquer forming products, acetyl cellulose or natural or synthetic resins (e.g. amino- or phenoplast resins, polystyrene, polyolefins, acrylic or vinyl polymers, polyesters, rubber, casein or silicone resins); for pigment printing on substrates, e.g. textile fibre materials or paper; and in a finely divided form for dyeing viscose rayon or cellulose ethers, or esters, polyamides, polyurethanes, polyglycol terephthalates or polyacrylonitrile in the spinning mass, or for dyeing paper. Yellow and reddishyellow shades are obtained.
Patent GB-1101709-A (GB)
Title: New 1-arabinofuranosyl-3-hydrocarbylcytosines
IPC: C07H19/06
Filed: 1966-09-20
Abstract: Compounds of the formula <FORM:1101709/C2/1> and their acid addition salts, wherein R is 1-8 C alkyl, benzyl, a -methylbenzyl or phenethyl and R1 and R2 are H or 1-4 C alkyl, are prepared by alkylating or aralkylating a corresponding 3-unsubstituted cytosine derivative.
Patent GB-1119216-A (GB)
Title: Process for treatment of water
Inventor: FURSTENBERG EBERHARD
IPC: B01J47/10
Filed: 1965-10-04
Abstract: A process of ion-exchange in which water enters through a lower nozzle floor at a flow rate of 3 to 20 metres/hour so as to maintain the bed during treatment in a non turbulent suspended state has a regeneration flow from above with the regenerant solution draining off and the remainder of regenerant being removed from the bottom upwards with fresh water to be treated.
Patent GB-906182-A (GB)
Title: Improvements in circuit arrangements for connecting an intrinsically safe telephone station to an exchange which is not intrinsically safe
IPC: H04M1/18
Filed: 1960-12-07
Abstract: 906,182. Automatic exchange systems. SIEMENS & HALSKE A.G. Dec. 7, 1960 [Dec. 8, 1959], No. 42113/60. Class 40 (4). A circuit arrangement for connecting a " safe " sub-station to an " unsafe " exchange includes a transformer LU, one winding of which is connected through a first circuit to the substation St and the other winding through a second circuit to the exchange Z, wherein the first circuit includes a switch operable by calling pulses from the exchange for connecting a " safe " call generator RG to the sub-station and the second circuit includes a switch operable by dialling pulses from the sub-station for relaying the pulses to the exchange. The substation St is connected over " safe " wires a<SP>1</SP>, b<SP>1</SP> to a pulse converter U containing the transformer LU and this is connected to an automatic exchange Z over line a, b. When the subscriber lifts his hand-set contact HU make, and polarized relay IR pulls up connecting the exchange line a, b to the windings W1, W2 of transformer LU. Dialling pulses generated at contacts nsi serve to energize and de-energize relay IR and are thus repeated to the line a, b. For an incoming call, the pulses of ringing current operate relay AR which connects a "safe" ringing generator RG to the safe wires a<SP>1</SP>, b<SP>1</SP> and switches on RG at contact ar3. The generated audio-frequency pulses then operate microphone M in the usual way.
Patent GB-1312135-A (GB)
Title: N-arylsolphonyl-n-2-tetrahydrodicyclopentadienylureas
IPC: C07C311/54
Filed: 1970-09-04
Abstract: 1312135 Sulphonyl-ureas BADISCHE ANILIN- & SODA-FABRIK AG 4 Sept 1970 [5 Sept 1969 11 July 1970] 42433/70 Heading C2C Novel compounds I (including geometrical isomers and salts thereof) where X is Me, MeCO, MeS, amino or Cl, are made according to standard methods, e.g. utilizing tetrahydrodicyclopentadienyl-2-amine. Pharmaceutical preparations especially suitable for treating diabetes contain I as active ingredient; administration is preferably orally.
Patent GB-1105404-A (GB)
Title: Device for imparting motion to member located in hermetically sealed space
Inventor: GRITSENKO IVAN EFIMOVICH
IPC: F16C1/06
Filed: 1966-09-23
Abstract: 1,105,404. Linkwork. TSENTRALNY NAUCHNO - ISSLEDOVATELSKY I. PROEKTNO - KONSTRUKTORKSKY KOTLOTURBINNY INSTITUT IMENI I. I. POLZUNOVA. 23 Sept., 1966 No. 42484/66. Heading F2K. To transmit motion through the wall 1 of a sealed enclosure, a resilient helical tube 2, secured to the wall 1 and closed at its free end outside the enclosure, contains a resilient rod 3 secured to the tube 2 at the closed free end thereof and extending through the wall 1 into the enclosure, so that axial compression or extension of the tube 2 causes rotation of the end of the rod 3 inside the enclosure. Compression of the tube 2 may be by a nut 5 on a fixed screw 4, or by other suitable means, e.g. a lever. A filter (not shown) prevents the entry of foreign particles into the space between the rod 3 and the tube 2.