baber/WOPTO huggingface dataset:
Patent GB-1227982-A (GB)
IPC: G05D13/00
Filed: 1968-04-26
Abstract: 1,227,982. Fluid-pressure servomotor systems. G. D. WOLFF. April 26, 1968, No. 19789/68. Heading G3P. The speed of a driven shaft 12, Fig. 1, is controlled by generating a series of pressure pulses at a frequency proportional to the speed of the shaft, feeding the pulses through a conduit 38, cyclically moving a pulse dividing member 62, Fig.2, across the discharge end of the conduit in synchronizm with the speed of the shaft to divide the pulse between a pair of outlets 76, 78 and feeding the divided portions of the pulse to a pressure responsive control means 84. The pulses are generated by a piston 16 reciprocated by a cam 14 and continue to be equally divided so long as a rotary member 46 carrying the member 62 is rotated through gearing 54, 56 from the shaft 12 at the required speed. If the speed varies, each pulse is divided unequally between the outlets 26, 28 to adjust the control means 84 which has restricted orifices 88, 90 communicating through grooves 100, 102 and 104 in the rotary member 46 with a reservoir 30. An angularly variable coupling 50 is provided between the shaft 12 and the gearing 54, 56. In Fig.4, radial ports in shaft 112 separate pulses from a continuous supply from an accumulator 120 and feed them into a conduit 130 while an axial groove 144 in a projection 142 on the shaft permits a portion of each pulse to flow past a check valve 156 and act on a spring-loaded piston 158 which remains in equilibrium until a shorter or longer portion of each pulse is produced by a variation in shaft speed. A rotatably adjustable sleeve 134 having a radial port 140 through which the pulses are transmitted to the groove 144 permits the controlled speed to be varied.
Patent GB-1231763-A (GB)
IPC: F16K17/04
Filed: 1970-01-22
Abstract: 1,231,763. Valves. SAMUEL BIRKETT Ltd. 22 Jan., 1970, No. 3073/70. Heading F2V. A spring-loaded safety valve comprises a closure member 8 with a recess housing a plastics disc 10, and a seat 4 having a surface 6 impregnated with P.T.F.E. The disc 10 is secured to the member 8 by a retainer 14 and screw 16, and the member 8 is fixed in a holder 18 by a clip 20, and aligned by a ball 24.
Patent GB-1232437-A (GB)
IPC: G11B19/26
Filed: 1968-08-26
Abstract: 1,232,437. Reverse gear; electromagnetic detent brakes. INTERNATIONAL BUSINESS MACHINES CORP. 26 Aug., 1968 [15 Sept., 1967], No. 40662/68. Headings F2D and F2E. [Also in Division G5] A friction reverse gear, driving a track-selecting lead-screw 60 of a keyboard or computercontrolled magnetic disc data storage apparatus, comprises a driven (driving) flexible, e.g. stainless steel disc 66 selectively electromagnetically flexed into engagement with one or other of two driving (driven) coaxial and corotating rollers or tyres 68a, 68b. Pressure rollers 72a, 72b are selectively urged to press the driven disc 66 against the driving rollers 68a, 68b by respective energization of electromagnets 70a, 70b. The rollers 72a, 72b are retracted by compression springs. The driving rollers 68a, 68b are fast on a shaft 64 directly or indirectly driven by a constantly operating motor 20. To brake the lead-screw at a selected position, a pair of electromagnetically controlled pawls 76a, 76b are inwardly moved to engage one pair of four lead-screw detent projections 80. To cushion impact, the pawls are spring supported at 82, reverse rotation due to reaction torque imparted to the lead-screw by engagement thereof of one pawl of said pair being braked by the other pawl. The pawls may be brakingly pulled inwardly by a common spring, electromagnet energization effecting screw release, or, as shown, releasingly pulled outwardly by springs 78a, 78b, electromagnet 74, energization effecting lead-screw braking. The disc data storage apparatus comprises magnetic discs 26, 28 co-rotatable with a spindle 12 driven by the motor 20 through a belt 18. The disc 28 is removable being connected to the tapered end 30 of the spindle by a magnetic chuck 27. Magnetic record or readout transducer heads 52a-52d are carried by arms 54a- 54d passing through enclosure slots 55a-55d and mounted on a carrier 56 engaging the leadscrew 60. Rotation of the carrier is prevented by an arm 61 which is arranged to actuate overrun preventing limit switches 90a, 90b which act on the electromagnets 70a, 70b and 74. To ensure correct track selection, means is provided to count lead-screw revolutions or fractions thereof. Such means may comprise a photo-electric cell co-operating with apertures in the disc 66 (Fig. 2, not shown) or reflective or non-reflective markers on the lead-screw (Fig. 4, not shown), or magnetic markers and detector heads. The control is arranged to stop the leadscrew when the desired count is reached.
Patent GB-1233720-A (GB)
IPC: F16H61/02
Filed: 1968-12-17
Abstract: 1,233,720. Change speed control. NISSAN JIDOSHA K.K. 17 Dec., 1968 [19 Dec., 1967], No. 59847/68. Heading F2D. A centrifugal regulator-valve for supplying to a vehicle automatic transmission a governor pressure 17 responsive to the speed of its supporting rotating shaft 1, with a stepped parabolic pressure-speed characteristic, comprises primary and secondary centrifugal valves, the former, 6, supplying to the latter, 9, a pilot loading pressure 23, derived from the final governor pressure 17 regulated by the secondary valve 9, the pilot pressure 23 being cut off entirely above a predetermined vehicle speed, whereafter the secondary valve 9 regulates alone, producing a less steep characteristic, Figs. 3 and 4 (not shown). The secondary valve 9 takes in line pressure 15 and regulates it to a governor output passage 17 under the combined influence of outward loading by a spring 11 and centrifugal force; and inward loading by delivery pressure 17 acting on differential lands 34, 35, and pilot pressure 23 acting on the valve-head 33. The primary valve 6 takes in governor pressure 17 and meters it to the pilot passage 23 under the combined influence of inward loading by a spring 8, outward by centrifugal force, and pilot pressure loading 23 on differential lands 27, 28, which can be outward, inward or zero according to the relative sizes of the differential lands. With equal lands, and hence zero pilot loading, the primary valve 6 has no regulating function, but simply cuts off pilot pressure above a predetermined speed. With differential lands the primary valve varies the slope of the governor pressure-speed curve in its regulating range. As is usual, throttle setting influences the shift points. Reference has been directed by the Comptroller to Specification 1,149,986.
Patent GB-1233749-A (GB)
IPC: H02P6/08
Filed: 1968-11-27
Abstract: 1,233,749. Electric motors. SIEMENS A.G. 27 Nov., 1968 [30 Nov., 1967], No. 56342/68. Heading H2A. A battery operated sound reproducing apparatus comprises a D.C. multi-pole commutatorless motor having an output shaft which either drives a pre-recorded medium, e.g. a tape, or is coupled, without speed change, to a second shaft which drives the medium. The motor shown has an external rotor 5 carrying permanent magnets 8 equal in number to the number of poles of the stator winding. The latter may be a two-phase or three-phase type winding and the individual winding sections may be bifilar wound. Field plates or Hall generators 9, 10 are disposed on the stator to be activated either by the magnets 8 or by a separate magnet 12 mounted on the rotor shaft, and control pretransistors 18-21, Fig. 3 (not shown), which in turn control switching transistors (14-17) which commutate the current in the stator windings. Diodes (29-32) connected to the windings provide a speed-dependent voltage for controlling a speed-regulating circuit (33) which operates by controlling the emitter current of the pre-transistors and hence the base current of the switching transistors.
Patent GB-1234125-A (GB)
IPC: G01N21/37
Filed: 1969-02-03
Abstract: 1,234,125. Apparatus for emitting I-R radiation. SIEMENS A.G. Feb.3, 1969 [Feb.12, 1968], No.5768/69. Heading G2J. Apparatus for use in gas analysis whereby infrared radiation from a single source St is formed into two beams having substantially the same spectral characteristics and intensity comprises a metal chamber K which houses said source and has milled therein an annular reflector formed by conical surfaces K 2  and frusto-conical surfaces K 1  so that radiation emitted from any point of the surface of the source is distributed uniformly either by reflection or by direct emission into the two diverging passageways B 1  B 2  in a block B to produce the beams. Chamber K and/or passageways B 1 , B 2  may be sealed by radiation transmitting windows F 1 , F 2  , F 3  to contain filter gases and source St may be a ceramic plate emitting infrared radiation. A further embodiment is described wherein reflector surfaces K 1 , K 2  are parabolic.
Patent GB-1238784-A (GB)
IPC: F15C1/00
Filed: 1969-07-14
Abstract: 1,238,784. Selective printing. STANDARD TELEPHONES & CABLES Ltd. 14 July, 1969, No. 35421/69. Heading B6F. [Also in Division G3] An electrographic recording head 12 is maintained at a predetermined spacing from a recording surface 13 by means 17 responsive to the pressure differential between a first pneumatic nozzle 2 adjacent the recording surface and a second pneumatic nozzle 4 providing a reference pressure. The two nozzles are fed from a common supply 5 and control a doubleacting piston connected through levers 23, 24 with the recording head; a bellows 33 in the supply to the nozzle 2 permits the nozzle position to be adjusted, and an adjustable surface may be used in conjunction with the nozzle 4. A spring 30 and domed projections 28, 29 interconnect the levers which are pivoted at 25 and 26 on a face plate 20 having a threepoint mounting on bars 22. To move the recording head away from the recording surface in the event of an air supply failure, the piston 17 or the lever 23 may be spring-loaded. A switch may also be provided in the supply 5 or between the bellows 33 and the nozzle 1 to retract the recording head in certain modes of operation. A dashpot may be linked to the piston 17 or felt pads utilized at the pivots 25, 26 to provide viscous damping.
Patent GB-1250288-A (GB)
IPC: H01J31/20
Filed: 1970-02-17
Abstract: 1,250,288. Colour television tubes. TOKYO SHIBAURA ELECTRIC CO. Ltd. 17 Feb., 1970 [17 Feb., 1969], No. 7496/70. Heading H1D. In a three-gun shadow mask type of colour television tube the transparency of the shadow mask is increased by making the apertures elongate in the vertical direction, the fluorescent dots on the screen being of similar shape, and the diameter of the neck of the tube is reduced to reduce the power required for the scanning coils by reducing the diameter of the blue gun and disposing the axes of the guns on an isosceles triangle instead of on an equilateral triangle. In the particular embodiment illustrated (Figs. 1-3, not shown) the apertures and the fluorescent dots are rectangular; the diameter of the blue gun may be 7 mm. whereas that of the other two guns is 10 mm. (Fig. 4, not shown).
Patent GB-1250625-A (GB)
IPC: H03M1/00
Filed: 1968-10-16
Abstract: 1,250,625. Analogue/digital converter. INTERNATIONAL BUSINESS MACHINES CORP. 16 Oct., 1968 [15 Nov., 1967], No. 49012/68. Heading G4H. In an analogue/digital converter of the type in which an analogue input current is compared with a variable reference current, a current flows continuously in each of a plurality of current paths 66, 68, 70, 72 (Fig. 2), the currents being selectively directed into the comparator. In the embodiment of Fig. 2 analogue voltage inputs 1-n are converted into corresponding currents and time multiplexed by a control 16 selectively rendering non-conductive transistors 42 so that the currents are sequentially applied to terminal 40. The analogue/digital converter includes logic circuitry 54 responsive to the output of comparators 50 controlling a register 56 from which the digital data is taken and transistors 90-96 which when rendered non- conductive direct the currents flowing through binary weighted resistors 74-80 in the associated current paths 66-72 via diodes 98-104 to the comparator 50. When a transistor is conductive the associated diode is reverse biased to prevent current flow through it. In the embodiment of Fig. 3 the parallel resistor network is replaced by a ladder, the current from a source 120 selectively flowing either through transistors 140-146 controlled by the logic circuitry 54 or diodes 150-156 to the comparator 50.
Patent GB-1250719-A (GB)
IPC: C07D295/192
Filed: 1969-03-19
Abstract: 1,250,719. Substituted N-benzoylpiperidene derivatives. LOVENS KEMISKE FABRIK PRODUKTIONSAKTIESELSKAB. 16 March, 1970 [19 March, 1969], No. 14529/69. Heading C2C. Novel compounds of formula wherein R 1  is a C 3-12  aliphatic hydrocarbon chain optionally attached directly or through O or S to the ring and optionally being substituted by phenyl, phenoxy or phenylthio, R 2  is alkyl and R 3  is C 5-8  cycloalkyl or R 2  and R 3  with N represents an optionally alkyl substituted heterocyclic ring, n 1  is 2 to 4, n 2  is 1 to 5 and n3 is 1 to 3, and pharmaceutically acceptable acid addition salts, are prepared by reacting a compound of Formula III with an acid halide, an anhydride, a mixed anhydride with an alkylcarbonic, carboxylic, sulphonic or inorganic acid, of an acid of Formula II or a reactive derivative thereof formed by reaction with a carbodiimide or a N,N<SP>1</SP>-carbonyldiimidazole. Intermediates of Formula II above are prepared by either diazotization of an aminobenzoic acid followed by reaction with potassium xanthogenate and an alkyl halide or by reaction of an ethyl hydroxybenzoate and an R 1 - bromide followed by hydrolysis of the ester. Piperidino alkylptperidines of Formula III above are prepared by reduction of the corresponding piperidino alkylpyridines which are prepared by reaction of 4-chloromethylpyridine or 4-vinylpyridine with the appropriate piperidine or alkylpiperidine respectively. 4 - (2 - N - Methylcyclohexylamino - ethyl)- piperidine is prepared by reaction of N-methylcyclohexylamine and 4-vinylpyridine followed by reduction. Pharmaceutical compositions in conventional forms for oral or parenteral administration and useful in treating Parkinsonism and having anticholinergic action comprise an above novel compound or salt and one or more pharmaceutical carriers therefor.
Patent GB-1250785-A (GB)
IPC: G03B19/00
Filed: 1968-10-30
Abstract: 1,250,785. Multiple lens cameras. RICOH K. K. Oct.30, 1968 [Nov. 8, 1967], No. 51338/68. Heading G2A. A multiple-image camera comprises a lens 1 having multiple integral micro-lens elements in orthogonal array, and a mask 3 with the same number of apertures 4 as there are micro-lenses, each aperture allowing a different portion a 5a  to a 1a  of the images Aa formed by each micro-lens of a corresponding portion As to A 1  of a subject A to be focused on a photo-sensitive sheet 2. Displacement of mask 3 parallel to sheet 2 allows image portions of a further subject to be focused on sheet 2 adjacent the first image portions, the mask being movable in seven steps in X and Y directions. A projection system recombines image portions for a given subject by including a mask 3 in front of the illumined sheet 2 whereby a composite image is projected on to a screen.
Patent GB-1251003-A (GB)
IPC: F16B12/20
Filed: 1970-04-16
Abstract: 1,251,003. Stud-and-socket fastenings. A. M. VON POSCHINGER-CAMPHAUSEN [trading as WHB-ANBAUMOBEL VON POSCHINGER K.G.], 16 April, 1970 [24 April, 1969], No. 18246/70. Heading E2B. [Also in Division A4]  A fixture for connecting two wooden boards 10, 12 at right angles comprises a plastics cupshaped element 1 press fitted into a blind-end bore in the end of board 10 and a locking pin 18 secured in a bore in board 12. The element 1 comprises a cylindrical outer wall 8 and a frusto-conical inner wall 7 separated by a horse-shoe shaped chamber 9, walls 7, 8 merging at one side into a single thicker wall provided with a flat outer surface (4, Fig. 1) and a central axial slot 5, the walls of slot 5 increasing in thickness from the open to the closed end thereof. The pin 18 includes a reduced part 17 of the same width as slot 5, and a head 15 so that when part 17 is inserted into slot 5 the head 15 engages the inner inclined surface of the thicker wall at both sides of the slot 5 and board 10 is drawn against board 12. The pin 18 may include a second head 19 for similarly mounting another board. The second head may comprise a screw (21, Fig. 6), which may include a reduced part (Fig. 7) for mounting another board. The outer surface of wall 8 may include serrations (11, Fig. 1).
Patent GB-1251515-A (GB)
IPC: H02M1/26
Filed: 1968-10-30
Abstract: 1,251,515. D.C./A.C. converters. JUNGNER INSTRUMENT A.B. 30 Oct., 1968, No. 51477/68. Addition to 1,132,208. Heading H2F. In a modification of a D.C./A.C. converter described in the parent Specification instead of the cascade arrangement of transformers there is a cascade arrangement of operational amplifiers connected to produce two step-approximated sine wave outputs in quadrature. As shown, Fig. 1, a D.C. source E is connected to a first stage comprising first and second amplifiers and to a terminal 3. A switch operating at a frequency a 2  alternately connects the source E to the positive and negative inputs of the first amplifier. The resistances of the positive and negative feedback paths of the amplifiers are chosen to correspond to the transformation ratio as described with reference to Fig. 10 of the parent Specification. As shown, Fig. 2, voltage waveforms e 1 , e 2  represent the outputs of the first stage between terminals 1-3 and 2-3 respectively. These outputs are fed to a second stage comprising a similar pair of amplifiers one of which is energized via a switch operating at a frequency a 1  which as shown, Fig. 2, is half the frequency a 2 . The second stage output waveforms e 4 , e 5  are taken from between terminals 4-3 and 5-3 respectively, and are fed to another pair of amplifiers via a pair of switches operating at a 0 , b 0  respectively, i.e. at half the frequency a 1 . As shown in Fig. 2, the switch operating at frequency b 0  operates 90 degrees out-of-phase with the other switch of the pair. Stepped sinusoidal voltage waveforms e 6 , e 7 , (i.e. voltages UC 1 l, US 1 l, Fig. 1) in quadrature are thus provided between terminals 6-3, 7-3 respectively. If a single phase output only is required, one of the last stage amplifiers may be omitted. In the parent Specification the switches are transistor arrangements controlled by an oscillator
Patent GB-1257619-A (GB)
IPC: H01C7/06
Filed: 1970-07-20
Abstract: 1,257,619. Resistors. E.I. DU PONT DE NEMOURS &CO. 20 July, 1970 [24 Oct., 1969], No. 35106/70. Addition to 1,219,761. Heading H1S. [Also in Division C1] An electrical resistor composition comprises, by weight: (a) 5 to 90% of an oxide of formula where x = 0 to 2, y = 0 to 2 and z = 0 to 1; (b) 9-90% of finely divided binder; (c) 1-69% of finely divided noble metal; (d) 0-10% of binary oxides. In addition to the compositions disclosed by and claimed in parent Specification, M may also include cadmium and M<SP>1</SP>, rhenium and zirconium, whilst excluding lead. The composition may be screen printed on to an alumina substrate and fired.
Patent GB-1258080-A (GB)
IPC: B01D21/00
Filed: 1968-12-31
Abstract: 1,258,080. Treating sewage. MACLEOD & MILLER (ENGS.) Ltd. 9 Jan., 1970 [31 Dec., 1968], No. 61808/68. Heading C1C. Sewage is aerated in a first chamber by means of a diffuser passed at constant rate to a second aeration chamber with a diffuser and then settled in a settling chamber. The treated liquid leaves the top of the settling chamber and sludge is recirculated to the first aeration chamber.
Patent GB-1287897-A (GB)
IPC: E04B1/61
Filed: 1969-06-06
Abstract: 1287897 Wall and ceiling panels C ADAMS 18 May 1970 [6 June 1969] 28724/69 Heading E1W Ceiling panels 1 and wall panels 2, 3 are provided with spaced hollow elements 4 which are suitably arranged as shown to allow interengagement and define between each adjacent panel a tubular passage for the reception of an attachment rod. For minor modifications involving co-planar panels and shapes of elements 4 and associated rods Fig. 3 (not shown) and the Specification should be referred to respectively.
Patent GB-1288827-A (GB)
IPC: H02M7/5375
Filed: 1970-09-15
Abstract: 1288827 Transistor oscillators PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 15 Sept 1970 [18 Sept 1969] 44018/70 Heading H3T [Also in Division H2] A D.C.-A.C. converter includes a transistor 7 across whose emitter base electrodes is connected the secondary 24 of a transformer 6 whose primary 5 is in series with the collector emitter path of T7 across the D.C. 1, 2; the secondary 24 current due to the primary 5 being in the same direction as current produced in the secondary 24 by a control signal circuit such as 15, 16, 17, 18, 19 so that when T7 goes off the secondary current discharges stored carriers in T7. A capacitor 33 in a starting circuit 31, 32, 33 initially charges until diac 32 breaks down to make T7 base to emitter junction conductive. The resulting collector current of T7 both generates a voltage across primaries 3, 11 of a further transformer 4, and also discharges C33 through D34 so that T7 now turns off due to lack of base current. The voltage across a capacitor 30 now discharges through windings 3, 11 so that T14 turns on due to a positive collector voltage from winding 11 and a base current from a secondary 20 through D21 and C22. This diode current also flows partly in winding 25 of transformer 13 (corresponding to transformer 6 in the other part of the circuit). When C22 can supply no more base current T14 goes off and winding 12 induces a current in winding 25, which flows in the same direction as its initial current from diode 21, this initial current also being prolonged by the inductance of winding 25. These two currents (i 24(g)  and i 24(s) , Fig. 2, not shown), add to produce a resultant (i T ) which discharges stored carriers, to ensure T14 is fully off before the cycle repeats to turn T7 on.