baber/WOPTO huggingface dataset:
Patent GB-1178947-A (GB)
Title: Electric Lamp having an Envelope Composed of Photoresistant Soda-Lime Silicate Glass
IPC: H01K1/32
Filed: 1968-07-31
Abstract: 1,178,947. Electric incandescent lamps. WESTINGHOUSE ELECTRIC CORP. 31 July, 1968 [31 July, 1967; 1 July, 1968], No. 36516/68. Heading H1F. [Also in Division C1] An incandescent lamp has an envelope made of soda-lime silicate glass which contains no more than 0À07% by weight of Fe 2 O 3  and an ultra-violet-radiation absorbing material comprising from 0À8% to 10% by weight TiO 2  or from 0À5% to 1% by weight of molybdenum oxides or mixtures thereof, which inhibit discoloration of the glass by impinging ultraviolet radiation and maintain the absorption coefficient of the glass in the visible region below about 0À4 cm.<SP>-1</SP> during a major portion of the useful life of the lamp.
Patent GB-893944-A (GB)
Title: Improved apparatus for analysing amplitude modulated records
Inventor: MARGARY HARRY HERBERT
IPC: G06F3/00
Filed: 1959-10-29
Abstract: 893,944. Electric selective signalling systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 12, 1960 [Oct. 29, 1959], No. 36692/59. Class 40 (1). [Also in Group XL (b)] The invention relates to means for automatically deriving a set of values representative of the position of a curve or trace at a plurality of points along its length. As described, it is arranged to obtain such sets of values for a plurality of curves recorded side-by-side on a single transparent recording strip or film such as is shown in Fig. 2. A scanning head is provided which is automatically caused to traverse the record periodically. When this head crosses the (or a) trace a pulse is developed which allows the output from digitizing means, which is a function of the displacement of the scanning head from a datum position, to be fed out. One form of apparatus is shown in Fig. 1a, wherein a motor MM drives a lead-screw to move a scanning head, comprising a light source on one side of the film directly opposite a photocell on the other, across the record. The same motor also drives the digitizing means. As the light beam is interrupted by the datum trace the digitizer drive is engaged whilst when the first trace is reached read-out is effected to a bank of thyratrons. It is arranged for the next trace to be ignored and the time used to record the information stored by the thyratrons. The thyratron store is thus available for the digitizer output when trace three is crossed and in general odd-numbered traces are investigated and the trace periods between them used to record the digital information obtained. After the last trace has been crossed the motor MM reverses and investigates the positions of the evennumbered traces in a similar way. After obtaining information from trace two the scanning head continues over the datum trace to the timing trace where the motor is stopped. The digitizer drive is uncoupled when its zero indicating position is reached. Stoppage of the motor MM causes a second motor to drive the record until the next timing mark reaches the scanning head. This motor is then stopped and the scanning cycle repeated. Fig. 3 shows an alternative scanning arrangement in which a tube containing a lamp and a focusing lens is mechanically reciprocated across the record and the photo-cell is fixed.
Patent GB-1309416-A (GB)
Title: Drawing head for a drafting machine
IPC: B43L13/08
Filed: 1970-07-29
Abstract: 1309416 Draughting machine MINSKY OPYTNY ZAVOD SPETSIALNOGO KONSTRUKTORSKOGO BJURO 29 July 1970 [14 Aug 1969] 36692/70 Heading G1X A draughting head in a draughting machine comprises two flat members 5, 9 which are adjustable to any one of a plurality of fixed relative positions by providing a hub 6 fixed to the member 5 and receiving an axle 7 to which the other member 9 is attached, and a lever 21 so pivoted to a washer 17 on the hub 6 that the lever can be brought to bear on another washer 16, the washer 16 being arranged by way of balls 18 to urge the flat members 5, 9 apart so that balls 8 fixed to the member 5 are lifted from cavities (12) Fig. 4. (not shown) in the member 9 to allow adjustment of the relative positioning of the members 5, 9. As shown, the members 5, 9 are connected to a bracket 2 on a moveable carriage (3) Fig.1, (not shown) and to drawing scales (11) respectively and a spring-loaded, manually-operable button 26 is reciprocatable in a casing 15 of the draughting head to pivotally adjust the lever 21 by way of a wedge 25. An arrangement 13, 14 to allow adjustment of the button 26 about the axle 7 may be provided.
Patent GB-819880-A (GB)
Title: An improved grinding machine
IPC: B24B5/04
Filed: 1956-12-03
Abstract: 819,880. Grinding. FARREL-BIRMING- HAM CO. Inc. Dec. 3, 1956 [Dec. 12, 1955], No. 36862/56. Class 60. A grinding machine comprises a grinding- wheel head 32 which is movable to a predetermined position relative to a workpiece 16, such as a roll, to be ground by sliding its base 19 toward and away from the roll and by moving the head about a pivot 31 on the base by means of a thrust member 78 connected to a lever 39 having one end pivotally-mounted on the base and the other end resting on a screwoperated member 45. The work support 13, which is slidable on guideways 11, 12 arranged transversely to guideways 20 for the base member 19, carries head and tail stocks 14, 15 for the support of the workpiece 16 which may be in the form of a roll and rotated by a motor 17. Movement of the base member 19 is effected by a screw 24 which is carried in the latter for engagement by a fixed nut 22 and driven through worm gearing 26, 27 by either of two motors for fast or slow adjustments. Also disposed in the member 19 is the screwoperated member 45 in the form of a nut which is arranged to be moved axially in a housing 46 by a screw 49 driven from a handwheel 54 through a belt-and-pulley drive 55, 56, shaft 53 and bevel gears 50, 51. This axial movement of the nut acts through a roller 44 to impart an angular movement to the lever 39 pivoted at 42 to a bracket 35 mounted on the member 19, and the resulting angular movement of the lever pivots the wheel head 32 by means of the thrust member 78, which is indirectly connected to the lever 39 through a lever 75 and has knife-edges 79 engaging a block 80 on the wheel head ; gravity maintains contact between the knife-edges 79 of the thrust member and the block 80. Fine adjustment of the grinding wheel in relation to the work can, therefore, be effected by the handwheel 54. For grinding the roll 16 to a convex or concave contour, an eccentric 68, which is mounted on a shaft 60 driven from a gear 66 through bevel gears 64, 65, shaft 63 and worm gear 61, is arranged to actuate a slide 70 so as to control the movement of the lever 75 and thereby, through the thrust member 78, the angular movement of the wheel head. An indicating dial 82 is connected to the screw 49 by a flexible shaft 81 to indicate the position of the grinding wheel as adjusted by the fine adjustment mechanism.
Patent GB-944827-A (GB)
Title: Incandescent lamp
IPC: H01K1/18
Filed: 1961-10-13
Abstract: A filament of tantalum or tantalum alloy mounted on supports within the envelope of an elastic incandescent lamp is converted to tantalum carbide in situ by passing current through it to raise it to a temperature of 2000-2600 DEG  C. in an atmosphere of hydrogen containing 1/8 -\ba1/4 % of methane or an atmosphere of hydrogen saturated with xylol. The carburizing may be carried out in stages, the coil being heated to 2250 DEG  C. for 1 1/2 minutes, the envelope being then exhausted and refilled with hydrogen saturated with xylol, the process being repeated five times.  Thereafter, a gas filling with an increased content of hydrocarbon is used, the temperature being raised to 2380 DEG  C. for half a minute and then to 2500 DEG C. over 1 1/2 minutes, this process being repeated four times.  The upper half of the coil may be coated with a suspension of colloidal graphite in water to prevent sagging of the finished filament.
Patent GB-997669-A (GB)
Title: Improvements in or relating to polishing and glazing machines
IPC: B24B47/06
Filed: 1962-10-01
Abstract: 997,669. Polishing and glazing. CLAIR MANUFACTURING CO. Inc. Oct. 1, 1962 [May 25, 1962], No 37040/62. Heading B3D. A polishing and glazing machine, for cutlery, tools, hardware and the like, includes surfacefinishing rolls, a work-table and power means having an output member connected to said table for causing said table to reciprocate in directions parallel to said rolls, said power means comprising a pneumatic pressure-operated device applying pneumatic pressure forces alternatively moving said output member in opposite directions, and elastic restraint means connected to said output member and arranged to elastically restrain motions thereof in both directions. A machine includes a frame 10 mounted on legs 12, 12 and supporting polishing or glazing rolls 14, 16 which contact along the line of entry of the workpieces. The rolls may be driven by separate electric motors. A table 70 is mounted by slideways 72, 72 on the frame 10 and is reciprocated horizontally toward and away from the rolls by an hydraulic pistoncylinder unit 75 mounted under the frame 10. A platform 80 is mounted on bearings 82, 82 carried by upright extensions of the table 70 for reciprocation axially of the rolls 14, 16 by a piston-cylinder unit 83 mounted on the table 70. The platform 80 includes means to receive in slide-fitting relation therein a work-carrying bracket 124, a batch of spoons, forks &c. being clamped on the bracket by a detachable holder bar. The piston-cylinder unit 83 comprises a piston 88, the rod of which is connected to an arm 86 integral with the platform 80. Springs 95, 95 are interposed between the piston and the ends of the cylinder to cushion movement at the ends of the stroke and to effect rapid reversal. Compressed air is supplied to opposite ends of the cylinder under the control of a valve 236 operated by dogs 250, 250 adjustable, by handle 254, on the platform 80.
Patent GB-982232-A (GB)
Title: Improvements in or relating to automatic strip gauge control for a rolling mill
IPC: B21B37/16
Filed: 1963-10-20
Abstract: 982,232. Rolling. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 20, 1963 [Sept. 21, 1962; April 29, 1963], No. 37077/63. Heading B3M. [Also in Division G3] A method of controlling the thickness of an increment of a workpiece which is reduced in a number of passes of a rolling mill comprises determining a first pass screwdown setting by predicting the roll separation force from the incoming and desired delivery thickness and incoming temperature of the increment, rolling the increment with this setting, determining the actual delivery thickness and temperature from the measured roll separation force, determining a second pass screwdown position using the actual temperature for the first pass, rolling the increment with this setting, determining from the measured roll separation force the actual delivery thickness and temperature for the second pass, and proceeding thus for each succeeding pass. The difference between the estimated and actual roll separating force, and hence the increment thickness, is assumed to be due to errors in determining the increment temperature this being difficult to measure, and thus for each succeeding pass the estimated temperature is modified, to produce a determined temperature, according to the difference between actual and estimated roll separating force for the preceding pass. When the thickness of each increment of a strip becomes less than 2 inches, the actual thickness can be directly measured by an X-ray gauge instead of being calculated. In a reversing mill, for example, a screwdown position control 28 and a roll speed control 22 are controlled by, and send feedback signals to, a computer 24. The computer is also fed signals from a roll force transducer 27, a roll speed transducer 29, strip thickness gauges 31 and 34, width gauges 33 and 35, temperature gauges 36 and 38, and from a manual input 40 and card reader 42 so that mill parameters such as roll diameters, mill spring, incoming and desired final strip thicknesses and strip composition may be used. Specification 982,231 and U.S.A. Specifications 2,303,596 and 2,332,272 are referred to.
Patent GB-625149-A (GB)
Title: Improvements in and relating to electric telemotor apparatus
IPC: B63H25/24
Filed: 1946-12-17
Abstract: 625,149. Electric follow - up systems. SUNDERLAND FORGE & ENGINEERING CO., Ltd., and DAVISON, J. W. Dec. 17, 1946, No. 37132. [Class 40 (i)] A device for remote control employing an electric telemotor, e.g. for ships' steering gear, consists of two rheostats 5, 6, operated by a hand wheel 1, controlling the power via the respective field windings 12, 11 to a reversible torque motor, which through a rack and pinion 17, 18 moves a control lever 30 against a spring 19. The amount of motion of the armature 10 is controlled by the position of the arm 3. Another spring and rack may be provided on the other side of the pinion 17 to balance the forces thereon. Alternatively, the spring 19 may be made to act directly on the pinion 17. A spring may be attached to the hand wheel 1 to return it to the neutral position automatically, and dashpots may be provided at the hand wheel and the motor to minimize hunting.
Patent GB-522978-A (GB)
Title: Improvements in or relating to interchangeable wheels and wheel centres for tractors and the like
IPC: B60B23/12
Filed: 1938-12-22
Abstract: 522,978. Vehicle wheels. BROWN & SONS (HUDDERSFIELD), Ltd., D., and HILL, W. L. Dec. 22. 1938, No. 37257. [Classes 144 (i) and 144 (ii)] A wheel for tractor and like vehicles comprises separable rim and wheel-centre members each formed with laterally-offset peripheral portions so that by interchanging their positions of attachment to one another, and in some cases' to the axle &c. flange, the tracking-width of the vehicle may be varied. As shown, the rim b is fitted with offset brackets b<SP>1</SP> adapted to be bolted, directly or through a spacing-member, to the offset flange a<SP>1</SP> of the hub-ring a. Intermediate rim brackets c may be secured to a ring d connecting the brackets b<SP>1</SP>. Reference has been directed by the Comptroller to Specification 483,126.
Patent GB-1318963-A (GB)
Title: Process for the manufacture of peptides
IPC: C07D253/08
Filed: 1970-08-03
Abstract: 1318963 1,2,3 - Benzo triazines FARBWERKE HOECHST AG 3 Aug 1970 [1 Aug 1969] 37320/70 Heading C2C A 3 - hydroxy - 4 - oxo - 3,4 - dihydro - 1,2,3- benzo triazine ester of a protected amino acid or a protected peptide, which is prepared from the free 3-hydroxy benzo triazine and a protected amino acid or peptide containing a free carboxyl group in the presence of a carbo diimide, is used in the preparation of peptides wherein a carboxylic ester of a protected amino acid or peptide is reacted with an amino acid or peptide having a free amino group and protecting groups are subsequently removed. The following starting materials are prepared. Z - Asn(Mbh)OH, Z - Gln(Mbh)OH and its methyl ester and H Gln(Mbh)OMe, HCl, Z-Gly- NH-MbH, and BOC-Leu-Phe-OH, where "Mbh" is 4,4<SP>1</SP>-dimethoxy benzhydryl.
Patent GB-1372684-A (GB)
Title: Touch sensitive power control system
IPC: H03K17/725
Filed: 1973-08-07
Abstract: 1372684 Proximity switching systems RE BELLIS 7 Aug 1973 [31 Jan 1973] 37397/73 Heading G1N A capacity sensitive proximity switching circuit is provided with (i) a threshold and delay circuit to suppress noise and transient interference, and (ii) a pair of flip-flops in cascade to provide SPLIT LOAD SWITCHING, e.g. one or the other or both in a double filament lamp bulb, or multispeed blender motor. DETECTOR CIRCUIT. The power pack 15 supplies ripple D.C. to the detector 9 and switching circuitry. The charging of a body which touches an equipotential "touch control surface' 28 cause transistor Q1 to transmit a pulse to NOISE FILTER circuit 10 comprising an RC delay circuit R11, C7 and a Zener diode threshold Z1. CONTRQL CIRCUIT. Cross-link networks 11, 21 are connected with transistor pairs 12,22 to form conventional bi-stable circuits controling respective triacs TS1, TS2 switching loads L1, L2. In operation the first touch pulse triggers bistable 12 to fire TS1 and energize L1; the second pulse resets bi-stable 12 (and hence TS1) and a pulse from Q2, when reset, triggers bi-stable 22 to fire TS2; the third pulse triggers bi-stable 12 again so that both TS1 and TS2 are fired; the fourth pulse resets both bi-stables (i.e. bi-stable 12 is reset and pulse from Q2 resets bi-stable 22) and hence both TS 1 and TS2 are "off".
Patent GB-1274948-A (GB)
Title: Improvements in or relating to yarn feeders for knitting machines
IPC: D04B15/58
Filed: 1969-07-25
Abstract: 1,274,948. Knitting-machines. E. MAYER [trading as MAYER & CIE]. 25 July, 1969 [14 Aug., 1968], No. 37463/69. Heading D1C. A yarn guide for a circular machine comprises a metallic holder 10 capable of being secured at an appropriate position in the machine and a yarn guiding portion 13 having a slidable and interlocking connection with the holder 10. The portion 13 is made of a ceramic material or contains ceramic matter whereby wear caused by the yarn running through the guiding aperture 14 in the portion 13 is reduced. The end of the portion 13 is suitably chamfered as at 15 to effect opening or ensure closing of the latches as appropriate of the needles as they pass the portion 13. Consequently the latter acts additionally as a latch guard.
Patent GB-1428907-A (GB)
Title: Process for the continuous preparation of polyurethane dispersions
IPC: C08G18/08
Filed: 1974-08-28
Abstract: 1428907 Aqueous polyurethane dispersions BAYER AG 28 Aug 1974 [1 Sept 1973] 37577/74 Heading C3R Aqueous polyurethane dispersions are prepared by mixing, by means of a counterflow injection process, at least one prepolymer containing terminal isocyanate groups with water. The prepolymer may be dissolved or dispersed in an organic solvent. Chain lengthening agents containing at least two groups capable of reacting with isocyanate groups and emulsifiers may also be present. It is preferred that ionic groups should be present in the resulting polyurethane and these are incorporated suitably by employing a prepolymer which has been ionically modified or by using a chain lengthening agent which contains ionic groups or groups convertible to ionic groups. The counterflow injection machines used may be any of those available commercially. Polyurethane powders may be prepared from the dispersions or the dispersions themselves may be used as coating or bonding agents.
Patent GB-986701-A (GB)
Title: Improvements in and relating to the spheroidising of particles
Inventor: MATTHEWS JOHN JENKIN
IPC: B01J8/42
Filed: 1962-10-04
Abstract: <PICT:0986701/C1/1> A bed 5 of granular particles, e.g. of boron carbide or uranium oxide, in a container is fluidized by passing a gaseous medium through a perforated base 2 of porous plug 3.  A local heating zone is formed by the electric discharge between the electrodes 6 and 7 so that as particles repeatedly pass through said zone they melt superficially and surface tension acting on the molten regions cause reduction of the particles to spheroidal form.  The gaseous medium is preferable ionizable and non-oxidizing, e.g. nitrogen or argon.  Supplementary heating may also be provided.ALSO:<PICT:0986701/C6-C7/1> A bed 5 of granular particles, e.g. of boron carbide or uranium oxide, in a container is fluidized by passing a gaseous medium through a perforated base 2 of porous plug 3.  A local heating zone is formed by the electric discharge between the electrodes 6 and 7 so that as particles repeatedly pass through said zone they melt superficially and surface tension acting on the molten regions causes reduction of the particles to spheroidal form. The gaseous medium is preferably ionizable and non-oxidizing, e.g. nitrogen or argon.  Supplementary heating may also be provided.
Patent GB-1060440-A (GB)
Title: Improvements in or relating to hydraulic transmission systems
IPC: F16H61/662
Filed: 1964-09-16
Abstract: 1,060,440. Change-speed control. LINDE A.G. Sept. 16, 1964 [Sept. 16, 1963], No. 37777/64. Heading F2D. A conjoint control for an internal combustion engine 1 and a variable displacement axial piston pump 3 of a hydrostatic transmission driven thereby comprises a pedal 9 having an arm 9a pivoted at 8a to a lever 8 which is pivoted at one end to a rod acting on a speed control lever 7 of the engine, and pivoted at its other end to a linkage acting on a lever 4 fixed to the tiltable part 3a of the pump. A cam plate 15 fixed to the tiltable part 3a ofthe pump co-operates with a spring-pressed follower roller to provide a force dependent upon the displacement of the pump to tend to return the part 3a to its zero displacement position. During operation of the pump, delivery pressure also tends to return part 3a to its zero displacement position, and hence the linkage is subject to a return force proportional to the pump displacement and the delivery pressure and hence proportional to the driving torque. In operation, with pedal 9 released, the portion 3a is in its zero delivery position and the control lever 7 is held in the position corresponding to the lowest engine speed by a tension spring 10. Initial pivoting of pedal 9 about its fulcrum 20 tilts the part 3a of the pump, the engine remaining at its lowest speed until the return force equals that exerted by the spring 10, whereafter the lever 8 pivots about 8a to adjust the pump displacement and engine speed. A force limiting device 21 is incorporated in the linkage between the pump control lever 4 and the lever 8, and this linkage also incorporates a reversing arrangement permitting reversal of the pump output and comprising a centrally pivoted lever 19 linked at an end 17 to the lever 8, and linked at either end 17 or end 18 to the pump control lever for forward or reverse.
Patent GB-1505138-A (GB)
Title: Process for producing shaped bodies
IPC: C22B7/02
Filed: 1975-09-15
Abstract: 1505138 Treating dusts and muds; shaped bodies METALLGESELLSCHAFTAG 15 Sept 1975 [24 Sept 1974] 37883/75 Heading C1A Shaped bodies are produced by mixing ironoxide containing materials in the form of dry or moist dust or mud, at least one material being capable of exhibiting thixotropic properties, or of imparting thixotropic properties to the mixture, by passing the materials through an impact mill or beater mill and subsequently shaping the material discharged from the mill.
Patent GB-1276299-A (GB)
Title: Improvements in amplitude-stabilised audio oscillators
Inventor: THOMPSON LIONEL RAYMOND
IPC: H03L5/00
Filed: 1968-08-08
Abstract: 1276299 Automatic voltage control HAWKER SIDDELEY DYNAMICS Ltd 7 Aug 1969 [8 Aug 1968] 37988/68 Heading G3R [Also in Division H3] An oscillator comprises integrating amplifiers 12, 13 and an inverting amplifier 11 connected in series in a loop 14 to produce cosine, sine and minus sine output waveforms, these outputs being used to derive pulses controlling the application of an amplitude error signal to the input of the amplifier 12 and the error signal being obtained by comparing the peak amplitude of the cosine waveform with a reference signal. Fig.4 shows the circuit for gating the error signal which is obtained from the output of an amplifier 23 to one of whose inputs is fed the peak of the cosine waveform and a reference voltage. Amplifiers 20, 21 are fed with the sine and minus sine waveforms and with a waveform obtained by squaring and inverting the cosine waveform Fig.3 (not shown). The resultant summing of these inputs to amplifiers 20, 21 produces output waveforms, Fig.2 (not shown) which control a diode AND gate 22 such that when coincidence between the waveforms occurs narrow pulses are produced to control a transistor T2 and field effect transistors T1, T3, the latter being normally conducting until switched off by a pulse to allow the output of amplifier 23 to be fed via line 24 to the input of the amplifier 12. To ensure stability during starting and switch over of ranges (when the error signal loses control), an amplitude limiting circuit is connected between the input and output of the amplifier 13, Fig.5 (not shown).