baber/WOPTO huggingface dataset:
Patent GB-729167-A (GB)
Title: Improvements in the manufacture of electric resistors
Inventor: CLARK JOHN DERHAM
IPC: H01C17/22
Filed: 1952-10-29
Abstract: 729,167. Resistance coatings and deposits. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Oct. 28, 1953 [Oct. 29, 1952], No. 27202/52. Class 37. Relates to treating a noble metal film resistor to bring the resistor to a desired value of resistance by removal of part of the film. The treatment comprises adjusting and ageing whereby successive film sections have descending values of resistance. The ageing may be induced by heat treatment in the form of a series of temperature cycles in which the resistor is warmed up to a temperature (e.g. 80‹ C.) and then brought back again to room temperature. This treatment is continued until the resistance value does not change after a temperature cycle. In the manufacture the resistors are adjusted towards the required value by removal of part of the resistance deposit (e.g. by scribing) in successive sections of the tube or other support and each section is separately coated with a protective insulating layer. In Fig. 2 a glass tube 1 is ratchet driven at 16-17, Fig. 3, so that it rotates step by step and longitudinal lines, Fig. 1, are scribed in platinum coating 2 in successive third sections 23-25 of tube 1 by a needle or point 13 as block 14 slides along rod 15. The successive sections 23-25 have descending resistance values and may bring the resistance value to within 20 per cent, 5 per cent and 0.05 per cent of nominal. Subsequent to scribing the first third 23 this section is varnish or protective layer coated and after a few days the ageing treatment is given. This procedure is repeated for the second and third sections 24-25 and finally a small unscribed band 26 is left unvarnished so as to provide for tolerance adjustment as and when necessary in course of time.
Patent GB-1088600-A (GB)
Title: Benzo (f) isoindole compounds and production thereof
IPC: C07D413/06
Filed: 1966-06-17
Abstract: Novel bis-simple and bis-quaternary salts of a morpholinoalkyl - 4,9 - o - benzeno - 1,3,3a,4,-9, 9a - hexahydro - 2H - benzo[f]isoindole, having the formula <FORM:1088600/C2/1> wherein n is a number from 2 to 5, R is either a hydrogen atom or a lower alkyl group containing not more than five carbon atoms and X- is an inorganic or organic anion, are prepared by reacting 1,4 - o - benzeno - 1,2,3,4 - tetrahydro-naphthalene-2, 3-dicarboxylic acid anhydride with a morpholinoalkylamine, reducing the resulting dione compound of the formula <FORM:1088600/C2/2> and reacting the resulting free isoindole of the above general formula with an acid or alkylating agent to give the corresponding salt.
Patent GB-1013283-A (GB)
Title: Semiconductors
IPC: C30B25/02
Filed: 1962-07-16
Abstract: A P-type silicon or germanium semi-conductor body is made by simultaneous thermal deposition of silicon or germanium semi-conductor atoms and P-type doping atoms from a mixed vapour containing thermally decomposable compounds of silicon or germanium and of the P-type doping material on to a substrate, wherein the decomposable silicon or germanium compound is pretreated to free it from contamination by an agent which would complex the acceptor and render it non-thermally decomposable, is then treated with a measured concentration of doping material, and is finally decomposed therewith.  Trichlorosilane, silicon tetrachloride, tetrabromide or tetraiodide may be treated with a boron, aluminium or gallium compound, particularly BCl3, distilled to remove the complex, and thermally decomposed in the presence of hydrogen and measured BCl3, thus depositing doped P-type silicon on a substrate of for example, silicon.  No exemplication of germanium deposition is given.ALSO:P-type semi-conductor bodies, e.g. of Si or Ge, are made by simultaneous deposition of atoms of the semi-conductor and of a P-type acceptor compound, e.g. BCl3, from the vapour phase upon a substrate, where the semi-conductor <PICT:1013283/C1/1> source, e.g. SiHCl3, has been pretreated to free it from contamination by an agent, e.g. a siloxane, which would complex the acceptor and render the latter non-thermally decomposable. In a preferred embodiment, illustrated in Fig. 1, BCl3 is added to commercial distilled trichlorosilane, and BCl3 in excess of that required to complex the siloxane is distilled off; the trichlorosilane is vaporized by the passage of H2, mixed with a stream of dried H2 containing a controlled amount of BCl3 and introduced into reactor 1. Deposition may occur on heated silicon substrate 2 (mounted on conducting bridge 3) or on semi-conductor wafers 4 of any conductivity type or degree. In an example 1.61x1016 boron atoms per c.c. of Si deposited from SiHCl3 containing BCl3, yielded a semi-conductor body having resistivity of 20 ohm/cm. Other gaseous semi-conductor sources include SiCl4, SiBr4, SiI4 or thermally-decomposable compounds of Ge. The acceptor may be a volatile thermally-decomposable compound of B, Al or Ga.
Patent GB-1220282-A (GB)
Title: Promoting the adhesion of halogen-containing resins to textiles
Inventor: HARRIS JAMES DONALD
IPC: C03C25/28
Filed: 1968-06-07
Abstract: 1,220,282. Polymer compositions. HARDMAN & HOLDEN Ltd. 30 May, 1969 [7 June, 1968], No. 27284/68. Heading C3P. [Also in Division B2] A composition for applying to synthetic or glass fibre textiles comprises a polymer or copolymer of vinyl or vinylidene chloride, a polyhydric phenol and hexamethylene tetramine, preferably with a plasticizer and silica or a silicate. In examples are used PVC or vinyl chloride-vinyl acetate copolymer with phosphate and phthalate plasticizers, resorcinol, pyrogallol or catechol, hexamethylene tetramine, silica and Ca/Zn stabilizer. After application to the textile, the composition is heated to 140-200‹ C., preferably under a pressure of 40-1600 kg./cm.<SP>2</SP>
Patent GB-1348306-A (GB)
Title: Article storage apparatus
IPC: B65G1/04
Filed: 1971-06-11
Abstract: 1348306 Storage device O OECKL 11 June 1971 [25 June 1970] 27467/71 Heading A4T Storage apparatus comprises concentric circular rows of storage 1, 2, 3, an arm 10 with one end concentrically pivoted at 9 and supported at the other end by wheel 11 rolling on rail 12 supported on the outer storage top, and a carrier in the form of a carriage 18 rolling along the arm and carrying a mast 17 up and down which a device 19 is movable for delivering and removing articles from the storage compartments as it moves between adjacent rows. Motor 14, on the arm has a gear 15 engaging a rack 16 on the rail for pivoting the arm, the rail extending over at least one radial passage through the rows.
Patent GB-160722-A (GB)
Title: Improvements in pipes
IPC: A24F3/02
Filed: 1920-09-27
Abstract: 160,722. Ropp, E. April 27, 1920, [Convention date]. Tobacco pipes; cleaners for tobacco pipes.-The mouthpiece 1 is mounted to rotate relatively to the stem 2 and carries a core 4 formed with flats 5, at right-angles to one another, for cleaning the bore and the bottom of the bowl. The core may be formed from a tube with one orifice 6, or two orifices 6, 6a, or from a solid rod with projections- or recesses to form the bore.
Patent GB-603188-A (GB)
Title: Improvements in or relating to electric pulse time modulators
IPC: H04L25/04
Filed: 1945-10-19
Abstract: 603,188. Thermionic distributers. STANDARD TELEPHONES & CABLES, Ltd. Oct. 19, 1945, No. 27643. Convention date, Dec. 9, 1944. [Class 40 (iii)] [Also in Groups XL (a) and XL (c)] A pulse time modulator comprises an electron beam made to describe a given path and a target electrode co-operating therewith, means being provided to deflect the beam in accordance with a signal wave and the configuration of the target or beam cross-section being such that the variation of the timing of the pulses therefrom is confined between predetermined limits without causing' them to disappear. Certain of the modulator elements may be multipled to produce the pulse trains of a multichannel system. In one embodiment, a multichannel cathode ray tube modulator comprises beam producing electrodes 14, 15, 16, Fig. 1, and deflecting electrodes 17 ... 20 fed in quadrature with sine wave potentials from a source 21 and phaser 22, so that a circular sweep is imparted to the beam. Apertures 26, 27 &c. in a commutator plate 25 divide the beam into segments, each of which can be individually deflected by electrodes 30, 31 &c. disposed around a circular electrode 29, and fed with deflecting potentials from separate signal channels such as 32, 32a. The signal deflected beam segments co-operate with slots 35, 36 &c. in a plate 33 behind which is a secondary-emitting electrode 34, from which the pulse signal output is derived and passed to a carrier frequency modulator through the cathode follower stage 55. The slots 35 &c. have a central portion 40, Fig. 2, at an acute angle with the direction of deflection between electrodes 29, 30 and end portions such as 44 parallel to said direction so that when the normal beam sweep path 38 is displaced by signal deflections the displacement in time of the output pulse 41 from electrode 34 is limited between the extreme positions 43, 46 corresponding to the deflected sweep positions 42, 45 respectively. A synchronizing pulse 12 of fixed phase and greater duration than the signal pulses is produced by the wider slot 37 which is perpendicular to the beam sweep line 38. In a second embodiment, Fig. 4 (not shown) the cross section of the electron beam is of the form of the slots 35 and it co-operates with a plate in which the apertures are substantially circular for producing signal pulses and the synchronizing pulse aperture is elongated, Fig. 5 (not shown). The Specification, as open to inspection under Sect. 91, comprises also a modulator, the cathode ray tube of which has a plurality of electrodes fed with modulating waves and stated to modulate the velocity of the electrons in the region of a fixed radial deflecting field. This subject-matter does not appear in the Specification as accepted.
Patent GB-606443-A (GB)
Title: Improvements in or relating to high tension magnetos
IPC: F02P1/00
Filed: 1945-10-19
Abstract: 606,443. Ignition magnetos. NEWTON, E. P. (American Bosch Corporation). Oct. 19, 1945, No. 27583. [Class 35] A magneto employs a readily replaceable unitary sub-assembly comprising a magnetic core carrying both primary and secondary coils, together with their conductors, and the contactcarrying members of the circuit-breaker. As shown, the sub-assembly 8, which also carries the condenser (not shown) consists of a laminated core 10 carrying the windings 15, 16 and magnetically connected laminated arms, of which the lower, 12, is secured by a clip ring 13 and the upper, 11, is cast as an insert in the non-magnetic contact-breaker support 17. The shaft 26 which carries the cam 27 rotates in a ball-bearing 6 in the housing and a plain bearing 25 in the sub-assembly 8. The magnet 3 is cast into the aluminium-zinc alloy housing, the flux being carried to the sub-assembly by an inductor member 30, 31, 32 and returns by vertical stacks of laminations 4. In a modified form (not shown), both bearings may be plain, the circuit-breaker may be mounted on a plate fastened to the core parts, and a permanent magnet rotor may be used.
Patent GB-874206-A (GB)
Title: Basic derivatives of salicylamide
Filed: 1957-09-02
Abstract: The invention comprises compounds of the formula <FORM:0874206/IV (b)/1> (wherein R1 is hydrogen or an alkyl radical of at most 4 carbon atoms, R2 and R3 are each alkyl radicals of at most 4 carbon atoms or form, together with the nitrogen, a saturated heterocyclic residue, such as a piperidino, pyrrolidino, morpholino or N-methyl-piperazino group, and X is an alkylene chain of 2 or 3 carbon atoms) and acid-addition salts thereof; and their preparation either by condencing salicyclic acid, or a functional derivative thereof, such as an ester or the acid chloride, with a diamine R1NH.X.NR2R3, with or without protection and subsequent release of the OH group, or by condensing salicylamide, or an N-R1-salicylamide, wherein the OH group is protected, with a halogenamine Hal.X.NR2R3 and subsequently releasing the OH group. Protection may be effected, for example, by acylation, the protecting group being removed by hydrolysis, or by benzylation or carbobenzoxylation, the group then being removed by hydrogenolysis.  Examples are given, an intermediate being 2-benzyloxy-N - (b -diethylamino-ethyl) - benzamide hydrochloride.ALSO:Injection solutions, stated to be useful in the treatment of rheumatics, comprise water and an acid-addition salt of a substituted salicylamide of the formula <FORM:0874206/VI/1> wherein R1 is hydrogen or an alkyl radical of at most 4 carbon atoms, R2 and R3 are each alkyl radicals of at most 4 carbon atoms or form, together with the nitrogen, a saturated heterocyclic residue, and X is an alkylene chain of 2 or 3 carbon atoms).  They may also contain substances such as 1-phenyl-2,3-dimethyl-4-dimethylamino-pyrazolone which act in a similar manner.  Salts referred to are hydrochlorides and oxalates.
Patent GB-1478254-A (GB)
Title: Test sender circuit for telecommunications exchanges
IPC: H04L12/26
Filed: 1975-07-01
Abstract: 1478254 Automatic exchange systems INTERNATIONAL STANDARD ELECTRIC CORP 1 July 1975 [9 July 1974] 27684/75 Heading H4P An automatic telecommunication exchange includes registers, one of which is seized for use for each call set up by a subscriber, and a junction over which outgoing calls are extended to a remote exchange; if a predetermined period elapses without the receipt of a call confirmation signal from the remote exchange, the seized register makes a number of attempts for a preset period to complete the call over the same junction, but if these attempts fail a commonly available test circuit is seized and connected to the junction, whereafter the register is disconnected from that junction and thus becomes available for other calls. The test circuit then emits a succession of signals over the junction in an attempt to stimulate a response from the remote exchange; if these attempts succeed, indicating that the initial failure of the call confirmation signal to arrive was due to a transient fault, the junction and the test circuit are both released. If, however, after a predetermined period no response is received the junction is set to its alarm condition in which it is unavailable for use and is signalled as faulty, the test circuit then being released.
Patent GB-171853-A (GB)
Title: Improvements in or relating to wheel rims
IPC: B60B21/02
Filed: 1920-09-30
Abstract: 171,853. Warwick, G., and Crouch, A. P. Sept. 30, 1920. Hoops and rings.- In a rolled-metal wheel rim 1, the turned-over edge portions 3 are shaped to hold a strip 6 of spelter &c., as by grooves 4, Fig. 1, or struck-up tongues 8, Fig. 2.
Patent GB-1273393-A (GB)
Title: A furnace installation for heat-treating workpieces in a protective-gas atmosphere
IPC: C21D1/63
Filed: 1969-06-02
Abstract: 1,273,393. Heat treatment furnaces. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT. 2 June, 1969 [5 June, 1968], No. 27767/69. Heading F4B. Two or more independent furnaces 1, in which workpieces are heat treated in a protective gas atmosphere, lead off from a gas tight primary chamber 2 into which the workpieces are intially introduced. In the chamber 2 is positioned a rotatable charging table, which by means of rotatable lifting gear 8, may be brought to a position 4 to allow the workpieces to be charged to and discharged from the furnaces 1, or to a position 5 to allow the workpieces to be quenched in an oil, water or salt bath defined by the Power part of the primary chamber 2, or to a position 6 in which the workpieces may be slowly cooled in a protective gas atmosphere circulated by fan 7. The lower part of primary chamber 2 is removable to allow replenishment of the quenching bath. In a modification (not shown) the furnaces may be of the through flow type having doors in their rear walls leading to additional quenching baths. The heat treatment processes performed may include carburizing, carbonitriding, gas nitriding, standardizing, soldering, sintering and steam treating, hardening or refining.
Patent GB-1300435-A (GB)
Title: Grain collecting means for a harvesting machine
IPC: A01F12/30
Filed: 1970-06-09
Abstract: 1300435 Grain collecting straw walker DEERE & CO 9 June 1970 [10 June 1969] 27842/70 Heading A1F In a combine harvester or threshing machine having a straw walker 10 comprised of a plurality of straw walker sections 12b-e movable relatively to one another and to the side walls 28, 30 of the harvester or machine, there is provided grain collecting means located beneath the straw walker and underlying the gaps existing between the individual sections 12 and between the sections and the side walls. Part of the grain collecting means is connected directly or indirectly to the walker sections. As shown, the grain collecting means comprises interceptor plates 34, 36 connected to the sections by links 41, 43, and deflectors 32, 38 rigidly mounted on side walls 28, 30. The parts are preferably of a profiled plastics or steel construction. In an alternative embodiment, the side walls 14, 16 of walker sections 12b, 12d are extended and serve as struts for the corresponding interceptor plates 34, 36 and inclined walls 22, 23 and grain return bottoms 20 of the sections 12 may be dispensed with. The walker sections 12 have sieves 18 and elastic deflectors may be provided on the outer sections 12a, e which lie against side walls 28, 30.
Patent GB-359656-A (GB)
Title: Improvements in reflex cameras
IPC: G03B19/12
Filed: 1930-09-18
Abstract: 359,656. Reflex cameras. BETTLES, A. E., 71, Sirdar Road, Wood Green, London. Sept. 18, 1930, No. 27914. [Class 98 (i).] In a reflex camera the focusing system comprises a chamber having a focusing screen mounted in the rear wall and a mirror mounted on the front wall, a movable mirror carried by pivoted arms centrally behind the lens system of the camera and a shutter-operating means which raises the mirror to close the opening into the focusing chamber before actuating the shutter. The focusing screen is viewed directly by an eyepiece or through an aperture in the top of the camera after reflection in a mirror. This aperture may be provided with a lens. In the form shown the mirror 7 mounted on the arms 13 pivoted at 10 reflects the rays from the lens 2 to a mirror 23 whence they are reflected to the focusing screen 24 which may be viewed through the eyepiece 25 or through the aperture 41 after reflection in the mirror 26. The shutter release (not shown) consists of a push rod bearing pin engaging in a slot in an arm rigidly connected to the arm 13, the rod actuating a trigger for the shutter at the end of its travel.
Patent GB-759507-A (GB)
Title: Improvements relating to powder mixers
IPC: B01F29/62
Filed: 1953-10-12
Abstract: 759,507. Batch mixing-machines. APEX CONSTRUCTION, Ltd., and PECK, W. C. Aug. 13, 1954 [Oct. 12, 1953], No. 28035/53. Class 86. A powder mixer comprises a mixing chamber having a cylindrical central portion 1 from each end of which a frusto-conical portion 2 or 3 extends the base angles a and b of the portions differing. The smaller ends are fitted with removable closures 4, 5. Trunnions 6 are mounted in bearings in a frame 7 to enable the mixer to be rotated by an electric motor or other drive.
Patent GB-1307721-A (GB)
Title: Process and installation for hardening a coating of varnish or paint
IPC: C08G18/68
Filed: 1970-06-10
Abstract: 1307721 Coating SOC CONSERVATOME 10 June 1970 [13 June 1969] 28049/70 Heading B2E [Also in Division Dl] A process for hardening a coating of varnish or paint which has been applied to a substrate, e.g. wood or metal sheet comprises solidifying the coating, depositing thereon a covering of a protective liquid inert to the varnish or paint, hardening the coating by irradiation and removing the protective liquid. In one embodiment the panels to be varnished are driven by three conveyor belts at a speed of 2.4 cms/sec., are sprayed with varnish having a composition given in one of examples 1-4, to a thickness of 500 microns. The coating is then solidified by radiation from an electron accelerator amounting to 4 megarads, the electrons emitted having an energy of 500-600 keV. A protective liquid formed from a salt of oleic alcohol acidic sodium sulphate known as "Teepol" (Reg. Trade Mark) is distributed onto the panels by nozzles. The panels are then irradiated by electrons corresponding to 6 megarads to harden the varnish, the protective liquid serving to prevent degassing of the wood due to excess heat. The protective liquid is finally removed from the panels by wiping them with a flap.
Patent GB-894451-A (GB)
Title: Process for reducing the carbon monoxide content of industrial combustible gases
Inventor: MARSH JOHN DAVID FRANCIS
IPC: C10K3/04
Filed: 1959-08-17
Abstract: In a process for reducing the carbon monoxide content of a fuel gas, such as carburetted water gas or oil gas, by reacting the carbon monoxide with steam in the presence of a catalyst to form carbon dioxide and hydrogen, the gas is first passed over a nickel sub-sulphide catalyst at 300 DEG -500 DEG C., to remove substances which reduce the activity of the catalyst employed in the carbon monoxide/steam reaction.  The nickel subsulphide may be mixed with the promoters listed in Specification 587,070 (Group III) and supported on china-clay or porous corundum.  The catalyst employed in the carbon monoxide/steam reaction may be a chromia-promoted iron oxide.
Patent GB-1470819-A (GB)
Title: Control valves
IPC: F16K31/06
Filed: 1974-06-25
Abstract: 1470819 Valves MOOG Inc 25 June 1974 [18 Oct 1973] 28075/74 Heading F2V In a valve assembly comprising two valve members actuable simultaneously by electromagnetic means for controlling the flow of fuel and oxidizer to the engine of a missile or space vehicle each closure member 58 (Fig. 7) has two parts for co-operating with respective seats 112, 118 in different planes and an internal passage which communicates the inlet to the inner one of said two parts such that fluid passes the two respective seats in opposite radial directions. The body of the assembly is made from planar blocks 13, 14, 15 (Fig. 7) which are screwed together. Each of the closure members is supported on the ends of a flapper 59 (Fig. 2) surrounded by and connected to a flexure tube member 64 which is pivotable by arms 70, 71 in the electromagnet 68 to actuate the valve. Filters are arranged in the two inlets.
Patent GB-1004489-A (GB)
Title: Valved bag
IPC: B65D30/24
Filed: 1962-07-23
Abstract: 1,004,489. Valved bags. SICEDISON S.p.A. July 23, 1962 [July 27, 1961], No. 28232/62. Heading B8K. A flap 2 (Fig. 1) at the upper edge of a tube 1 is folded in about the lines 3, 4 to form a valve, as in Fig. 3, and is then welded. As shown one weld 13 coincides with the weld forming the end of the bag. The tube may be seamless or formed by welding from a sheet.