baber/WOPTO huggingface dataset:
Patent GB-1483467-A (GB)
Title: Orientation system for a spin stabilized spacecraft
IPC: B64G1/36
Filed: 1974-11-04
Abstract: 1483467 Attitude control R C A CORPORATION 4 Nov 1974 [16 Nov 1973] 47593/74 Heading G3N The attitude of a spin-stabilized space-craft body is adjusted without changing the craft velocity by a system in which equal and opposite thrusts F 1 , F 2  create a pure couple about an axis T 1  perpendicular to the spin axis 13. The system requires a sensor 17 which establishes the direction of an inertial reference point, e.g. the sun. The sensor, in moving round the spin axis, is aligned with that point once per rotation and this establishes a time-reference relative to which the correct instant to apply a predetermined reactive-thrust couple in order to effect a desired attitude change. The thrusts are pulsed - that is, a predetermined single-shot thrust of given duration and magnitude is repeated, at appropriate time intervals, until the desired attitude change has been effected. The control system Fig. 2 (not shown) consists of a delay circuit with two inputs: one receiving a command signal from the ground to determine whether, and by how much, an attitude change is required; and the other from the sun sensor to determine the time of thrust-firing in relation to the rotation of the craft about the spin axis. The delay circuit output operates a fire command circuit for the thrustors, subject to an enabling input from the earth station.
Patent GB-1343216-A (GB)
Title: Substituted polyalkamers
IPC: C08G61/08
Filed: 1971-10-14
Abstract: 1343216 Substituted polyalkamers MONTECATINI EDISON SpA 14 Oct 1971 [17 Oct 1970] 47940/71 Heading C3P Substituted polyalkamers comprising repeating units of formula-CHCl.CHOR(CHR<SP>1</SP>) 2 - where R represents the acyl residue of a C 1-13  organic monobasic acid having a dissociation constant in water at 25‹ C. of at least 1À65 x 10<SP>-5</SP>, R<SP>1</SP> represents hydrogen some but not all of which may be replaced by methyl and z is 3 to 10, the ratio of CHR<SP>1</SP> to CHCl and CHOR groups is 1À5 : 1 to 5 : 1, may be prepared by reacting a polyalkenamer dissolved in methylene chloride, optionally together with methanol or benzene, with an alkyl hypochlorite in the presence of said monobasic acid. The polyalkenamer may be prepared by ring opening polymerization of one or more cycloolefins in the presence of a tungsten compound. The preferred alkyl hypochlorite is t-butyl hypochlorite. Many suitable acids are specified and examples describe the reaction of polypentenamer with (1 and 2) acetic acid, (3 and 4) formic acid, (5) p-toluenesulphonic acid, (6) trichloracetic acid, (7) trifluoracetic acid, (8) perfluorobutyric acid and (9) perfluorooctanoic acid; polyoctenamer with (10) formic acid, (11) acetic acid (12) trichloracetic acid and (13) perfluorobutyric acid; polydodecenamer with (14) acetic acid, (15) trichloracetic acid and (16) perfluorobutyric acid; poly(3 - methyloctenamer) with acetic acid; and poly(pentenamer) co(octenamer) with trichloracetic acid; in the presence of t-butyl hypochlorite. The products may be used in paints and coating compositions, for waterproofing textiles and may be saponified to give cross-linkable hydroxyl-containing materials.
Patent GB-1148113-A (GB)
Title: Improvements in or relating to viscometers
Inventor: HODGETTS GRAHAM BENSON
IPC: G01N11/14
Filed: 1966-10-26
Abstract: 1,148,113. Viscometers. CIBA (A. R. L.) Ltd. Oct.12, 1967 [Oct.26, 1966], No.47982/66. Heading G1S. In a viscometer the sample 22 under test is placed in a rotatable tubular container 2, in which is immersed a probe element 1 connected via rod 21 to a torsion coire 8, the tension of which is controlled by a torsion head 15. A scale 10 is attached to the rod 21, In use, the container 2 is rotated by a synchronous motor such that a torque is imparted to the probe 1 and thence to the wire 8, changes in angular position of the scale relative to a pointer 11 being determined as a measure of the viscosity changes. A temperature controlled bath may be provided. Switch means and an alarm circuit may be provided to operate at a predetermined viscosity measurement.
Patent GB-1526825-A (GB)
Title: Hydroxy unsaturated diesters
IPC: C08F22/14
Filed: 1975-11-21
Abstract: 1526825 Hydroxy-containing unsaturated diesters REICHHOLD CHEMICALS Ltd 21 Nov 1975 [26 Nov 1974] 47989/75 Heading C2C [Also in Division C3] Hydroxy containing unsaturated diesters of the formula wherein R 1  represents (a) an alkyl group of two to six carbon atoms containing one free hydroxyl group; (b) a 2,3-dihydroxypropyl group; or (c) a group of the formula (as explained below) wherein n = 2 or 3, x = 2 or 3, and m is from 1 to 800; and R 2  represents a primary alkyl group of linear or branched configuration containing four to twelve carbon atoms are prepared by reacting together a polyol of formula R 1 OH, a primary alcohol of formula R 2 OH and an acid of formula or an anhydride of such acid, in the presence of para-toluene sulphonic acid as esterification catalyst, in the proportions of 1 mol of polyol of formula R 1 OH, to 1À1 moles of primary alcohol of formula R 2 OH, to 1 mole of acid of formula or anhydride thereof.  By way of explanation, when R 1  represents (c) and n or x in the formula thereof is 3, the group -(-CH 2 -) -n or -(-CH 2 -)-may be a straight or branched chain.
Patent GB-1159182-A (GB)
Title: Improved Means for use in Releasably Fastening Together Two Portions of Flexible Sheet Material such as Textile or Plastics Covered Material
Inventor: BENGTSSON SIGURD WALTER
IPC: A41F1/00
Filed: 1966-10-26
Abstract: 1,159,182. Releasable fastenings. S. W. BENGTSSON. 26 Oct., 1966 [14 Feb., 1966], No. 48077/66. Heading E2A. Means for use in releasably fastening together two portions of flexible sheet material, such as textile or plastics covered sheet material, comprises two units A, B, respectively securable to the portions by snap-engaging together two parts of each unit with the associated portion gripped therebetween, one part of each unit .being a washer 16, 16' adapted to abut the other washer when the .portions are fastened together, each washer being adapted to surround an aperture in the associated portion, and the other part of each unit being respectively a collar 22 and a plate 10 formed integrally with a slotted projection 11 which are each locatable on the side of the associated portion remote from the associated washer, means being provided whereby each said other part is snap-engageable with the associated washer thereby to grip the associated portion between the two parts of each unit and the arrangement being such that in the assembled position said slotted projection extends through the aperture in the associated portion and through an aperture in the associated washer, for passing through a portion cf the assembled washer and collar of the other unit to enable a strap 28 to be passed through the slot in the projection releasably to fasten the portion provided with the collar-and-washer unit to the portion provided with the plate-and-washer unit. In the construction shown the snap engageable meansof the unit A are teeth 15 at opposite ends of the projection 11 and cooperating teeth 17 at opposite ends of the aperture through the washer 16, similarly the collar 22 has extensions 24 at opposite ends of its aperture: the extensions having outwardly projecting teeth 25 which co-operate with inwardly projection teeth 17' at opposite ends of the aperture in. the washer to secure the collar and washer together after the extensions 24 have passed through the aperture in the flexible material portion. To prevent relative movement of each unit and its portion, each washer is provided with protuberances 37, 37' which enter apertures and. recesses 14, 14' in the plate and collar respectively, the protuberances deforming the flexible material .when the washer 16 is secured to the plate 10 and the washer 16' is secured to the collar 22.
Patent GB-1359329-A (GB)
Title: Digital or quasi-analogue measuring instruments
IPC: H03K21/08
Filed: 1971-10-15
Abstract: 1359329 Measuring frequency VDO TACHOMETER WERKE ADOLF SCHINDLING GmbH 15 Oct 1971 [15 Oct 1970] 48150/71 Heading G4H In apparatus for repeatedly measuring the frequency of an input signal 9, the preceding measurement, held in a store 3, is compared with the new measurement, the store being enabled to enter new data when successive measurements differ. As described, the frequency of the signal is doubled in a pulse doubler 18 before being passed, via gate 11 enabled for a fixed duration by a signal 10 and 2.1 sealers 16, 17, to a decade counter 1, 2 and an auxiliary counter 14. The arrangement is such that counter 14 counts the first, third, fifth &c. pulses and counter 1 counts the second, fourth &c. pulses. At the end of each measurement the count in counter 14 is compared with the count in store 3 representing the previous measurement made by counter 1, 2 and if they are identical a coincidence detector 15 disables gate 24 so that the contents of store 3 are not updated. If, for example, 45 pulses are fed to pulse doubler 18 in one measurement cycle the 90 pulses passed by gate 11 result in counts of 45 in each counter 1,2 and 14. If 44.5 pulses are fed in the next cycle resulting in counts of 44 and 45, respectively, in counters 1, 2 and 14 the store 3 is not updated and the input has to drop to 44 before a reading 44 is stored. The contents of the stores 3, 4 associated with counters 1, 2 are decoded and displayed on indicators 7, 8. Modifications.-The counts in two auxiliary counters 14, 25 may be compared with count in counter 1, 2 to control the gate 24. The time interval may be doubled in length instead of the frequency of the pulses being doubled.
Patent GB-1483236-A (GB)
Title: Device for indicating changes in the position of an object
IPC: G01H9/00
Filed: 1974-11-12
Abstract: 1483236 Electromagnetic-wave vibration measurement G HELLGREN and G WAHLSTEN 12 Nov 1974 [12 Nov 1973] 48851/74 Heading H4D A device for providing an indication of changes in the position of a test-piece comprises a transmitter 11 for transmitting an alternating signal to the object, a receiver 12 for receiving reflected signals therefrom and a phase comparing circuit 13, for effecting phase comparison of the transmit/receive signals, transmitter 11 including a sweep signal generator to generate a symmetric sweep signal to frequency modulate the signal transmitted over a frequency range such that the TX/RX signal phase difference x is varied over the range 180<x<360, means to adjust the signal frequency or signal path and thus the mean phase difference at the comparing circuit while the frequency of the transmitted signal is being modulated and thereby to adjust the mean phase difference to an integral number of half wavelengths, changes in the position of the object being indicated on a display 15 by the output of the phase comparing circuit when the device is thus adjusted, and a calibration of this output being provided by the output while the device is thus adjusted and the frequency of the transmitted signal is being so modulated. The invention as embodied uses microwave radiation. In the embodiment of Fig. 5, a transmitter 51, having an oscillator the frequency of which may be varied, transmits a microwave signal to the vibrating object, which may be part of a rotating turbine, and also directly to receiver 52 wherein an output signal is produced as a function of the phase difference between the transmitted and reflected signals. This output signal is amplified by preamplifier 53, and is fed alternately, by switch 59, controlled by pulse generator 65, directly to measuring amplifier 57 or to amplitude measuring circuit 54 and symmetry measuring circuit 60, in time-multiplex fashion, whereby the system alternately calibrates the transmitted frequency so that any variation in the mean path length corresponds to an integral number (odd, or, preferably, even) of half wavelengths of the transmitted signal. The output measurement signal e(t) is fed to an indicator 58, e.g. an oscilloscope, during a measurement interval. During a calibration interval, switch 59 is in the upper position (illustrated) and an output from circuit 54 provides a signal to control the gain of pre-amplifier 53 to produce a calibration signal. Symmetry measuring circuit 60 and bias voltage generator 61 comprise a phase adjustment system which reacts to any low frequency drifting in the object position to vary the frequency of the L.O. in transmitter 51 via summer 64 where the phase adjustment signal is added to the signal from sweep generator 63 to vary the phase of the transmitted signal so that the phase difference between the transmitted and an unmodulated reflected signal is n 180. The switch frequency from generator 65 is at a frequency to enable Nyquist sampling of the sweep generator frequency.
Patent GB-1286379-A (GB)
Title: Production of impact modified polymer compositions
IPC: C08L33/20
Filed: 1970-10-14
Abstract: 1286379 Graft polymerization process MONSANTO CO 14 Oct 1970 [14 Oct 1969] 48884/70 Heading C3G A composite graft polymer is produced by a process which comprises (a) forming an admixture of a rubbery polymer substrate with a first polymerizable monomer formulation comprising at least 70% by weight of a monomer which is a monoethylenically unsaturated aromatic monomer, an alkyl ester of an unsaturated carboxylic acid, a vinyl alkanoate, an unsaturated carboxylic acid or a vinyl ether; (b) subjecting the mixture to polymerizing conditions so as to form an intermediate graft polymer having a superstrate to substrate ratio by weight of at least 10:100; (c) mixing the intermediate graft polymer with a second polymerizable monomer formulation comprising at least 60% by weight of an ethylenically unsaturated nitrile monomer; and (d) subjecting the mixture to polymerizing conditions to form a composite graft polymer containing a composite superstrate which comprises a total of at least 60% by weight of an ethylenically unsaturated nitrile monomer. The rubbery substrate is preferably a diene rubber, but may be a saturated rubbery polymer, e.g. an elastomeric mono-olefin polymer or elastomeric polymer of a C 3  to C 18 -alkyl ester of a C 3  to C 18 -mono or dicarboxylic unsaturated acid. The graft polymer produced may contain some ungrafted interpolymer of the graft monomers as matrix interpolymer or may be blended with separately prepared interpolymer of the graft monomers specified. In the examples, butadiene/acrylonitrile and/or styrene rubbery copolymer is grafted with n-butyl acrylate and styrene and then with methacrylonitrile and styrene, the resulting graft polymer being blended with methacrylonitrile-styrene resin. The graft polymers are compatible with polymers such as polycarbonates, polyvinyl chloride and polysulphone resins.
Patent GB-1164870-A (GB)
Title: Method and arrangement for synchronising synchronous self-starting motors.
Inventor: FUNKE HANS
IPC: H02P1/46
Filed: 1967-11-01
Abstract: 1,164,870. Control of A.C. motors. ELEKTROMASCHINENBAU SACHSENWERK VEB. 1 Nov., 1967, No. 49689/67. Heading H2J. An arrangement for applying D.C. excitation to a self-starting synchronous motor comprises a timing unit 2 producing an output when the width of rectangular pulses, which are derived from a converter and have slip frequency, exceeds a reference value, the output signal being applied through store 3 to one input of AND-gate 4. A second AND-gate 5 is open, when signals from the store 3 coincide with negative half-waves of the rectangular pulse signal, to apply a signal through a storage device 7 and amplifier 8 to operate a switch 9 for exciting the motor. The unit 6 is adjusted to allow for the time of operation of the switch 9. The signals from the converter 1 may be applied to the unit 2 through a negator 10.
Patent GB-1355577-A (GB)
Title: Apparatus for making sand moulds
IPC: B22C11/10
Filed: 1971-10-26
Abstract: 1355577 Foundry moulding machines S LARKIN 26 Oct 1971 [13 Aug 1971] 49726/71 Heading B3F  A foundry matchplate moulding machine has two moulding chambers 20, 28 for forming cape and drag mould portions reciprocable in a plane towards and away from one another and a matchplate pattern carrier 64 reciprocable between a position between the moulding chambers 20, 28 and a position out of the plane. Sand is blown into the moulding chambers 20, 28 through ducts 72, 74 and the mould parts so-formed are pressed by plates 32, 34 on fluid motors 36, 38, 46, 48. Ejection of the mould parts formed is accomplished by retracting the chambers 20, 28 from the pattern carrier 64, retracting the pattern carrier to its out-of-plane position operating fluid motors 36, 38, 46, 48 to move plates 32, 34 towards one another and to make the mould parts, retracting the plate 32 and pushing the mated mould parts sideways off the plate 34 by means of the pattern carrier 64 returning to its in-plane position between the moulding chambers 20, 28.
Patent GB-1394262-A (GB)
Title: Steel for cutting sinstruments and production thereof
IPC: C21D8/02
Filed: 1972-10-31
Abstract: 1394262 Making cutlery and razor blades GILLETTE CO 31 Oct 1972 [1 Nov 1971] 50112/72 Heading B3A [Also in Division C7] A razor blade or knife is produced from a steel in percentage by weight C .....0À6-1À4 Mn .....7-30 Cr .....0-20 Co .....0-10 Si .....0-2 Al .....0-6 Cu .....0-2 Mo .....0-2 Ni .....0-5 W .....0-1 by austenitizing at 1000-1250 C. to dissolve sufficient carbides that the Ms temperature is depressed so far below room temperature that the steel remains substantially austenitic during the subsequent cold working and ageing operations. After cooling or quenching the steel is cold worked e.g. by rolling, stamping, pressing or drawing, preferably with at least 50% reduction, the working possibly being effected in part by the grinding involved in forming the cutting edge, and is then aged at 200-500 C., followed by application of and baking of a polymer coating.
Patent GB-1079300-A (GB)
Title: Upsetting machine for the manufacture of screw bolts and the like
IPC: B21D45/00
Filed: 1964-12-11
Abstract: 1,079,300. Forging screws and bolts. NEDSCHROEF OCTROOI MAATSCHAPPIJ N.V. Dec. 11, 1964 [Dec. 13, 1963], No. 50477/64. Heading B3H. A bolt or like heading machine has a reciprocable slide 2 carrying a heading tool 9 having an ejector 13 actuated by adjustable mechanism 33, 34 for ejecting the workpiece 14 during retraction of the slide. The machine may have a plurality of co-operating heading tools 9, Fig. 5 (not shown) and dies 10, through which the workpiece is transferred successively by a transfer mechanism. Slide 2 is actuated by a crankshaft 5 and has a bridge portion 31 running in a rear guide 32, Fig. 1 (not shown). The axial position of each heading tool is adjustable by a corresponding wedge 35. Each ejector rod 13 is actuated through a bell-crank lever 33 by an axial cam 34 whose position is adjustable by a threaded sleeve 29 and locking bolt 28.
Patent GB-1511797-A (GB)
Title: Apparatus for the storage and testing of a laboratory sample
IPC: A61B19/00
Filed: 1976-12-06
Abstract: The packaging has a chamber (8) which is formed in a housing and is designed to hold the sample. This chamber can be tightly closed on the housing side, using a sample cover (4), and on the other side, using an analysis cover (6). <IMAGE>
Patent GB-1441010-A (GB)
Title: Liquid-piston type slurry pumping system
IPC: F04B9/113
Filed: 1973-11-02
Abstract: 1441010 Liquid piston pumps MITSUBISHI KINZOKO KOGYO KK 2 Nov 1973 [2 Nov 1972] 50950/73 Heading F1A A liquid piston pump for slurry comprises a continuously running rotary pump 11, the suction and discharge sides of which are alternately connected by a solenoid valve 10 directly or indirectly to a pair of chambers 8, 8a to alternately charge and discharge slurry into and from the chambers via respective valve boxes 1, 1a, sensors 15, 15a detecting the operating fluid-slurry interfaces 14, 14a to changeover the valve 10. As shown, the operating fluid from pump 11 acts directly on the slurry. In Fig. 2 (not shown), a first operating fluid from pump 11 acts on two coupled pairs of pistons which transmit the reciprocating movement to the slurry via a second operating fluid, and the first operating fluid may be air or steam. In Fig. 3 (not shown), each chamber 8, 8a is connected to valve 10 via series-connected chambers (18, 28, 18a, 28a), the pumped operating fluid being separated from the slurry by two intermediate fluids with boundaries formed in the respective chambers.
Patent GB-511274-A (GB)
Abstract: 511,274. Labelling-machines. COX, L. N. (Verpackungs-Automaten Ges.). April 3, 1939, No. 10336. [Class 73] A labelling-machine for applying labels simultaneously to the ends of cylindrical objects by means of pneumatic separators is provided with means whereby, on the failure of the separators to pick up a label, or on the absence of an object at the applying station, the applying stroke of the separators is prevented. The objects are fed along a track 6, Fig. 4, in strips by pushers 2 and at the station a the ends are roughened by members 5. At the next station b the ends are gummed by pads 9 which are given a rotary to- and-fro movement and pick up a gum supply from discs 7 dipping into adhesive troughs. At the station d pneumatic separators 14, which swing about horizontal axes, separate labels from the bottom of label piles and are reciprocated by members 13 to apply the labels. At the next station flexible pads 28 press the label and the objects then pass to a slowly moving conveyer where they are subjected to further pressure by reciprocating members 30. A feeler at the station d controls a valve which, in the absence of an object, is opened to destroy the vacuum in the separator. A projection 20, Fig. 3, normally retracted by a piston 22 in the suction circuit, is then moved by a spring 21 to engage a tooth 24 on a lever 23 by which 'the applying movement of the separators is effected, to prevent that movement. The vacuum is similarly broken when the separators fail to pick up a label.
Patent GB-1029540-A (GB)
Title: Improvements in or relating to reservoirs for master cylinders
IPC: B60T11/26
Filed: 1963-12-30
Abstract: 1,029,540. Hydraulic brakes; brake indicators. H. TEVES, E. A. TEVES, M. TAUSEND, [trading as ALFRED TEVES MASCHINENUND ARMATURENFABRIK KOMM. GES.]. Dec. 30, 1963 [Jan. 23, 1963], No. 51163/63. Addition to 1,019,308. Headings F2E and F2F. [Also in Division G1] In an improvement or modification of the invention claimed in the parent Specification, the interior of the bellows 5 for a master cylinder make-up reservoir 2 is connected via a flexible line 6 to the interior of the make-up reservoir 2. By this means the bellows 5 may be disposed at a position remote from the make-up reservoir 2 where space restrictions make this desirable. The bellows may have the shape of a parallelepiped and may be constructed of a compact plastics element which receives a spring strip 8. The volume of the interior space 15 of the bellows 5 in the inflated state is at least equal to the volume of the inside 3 of the reservoir 2. An electrical warning device may be provided in the bellows and takes the form of abutments forming contacts in the walls of the bellows. One wire 19 is connected to one abutment or contact 16 in one wall of the bellows and another wire 20 is connected to the other abutment or contact 17 in the opposite wall of the bellows. The screw 22 is adjustable so as to touch the contact 16 just before all the pressure medium has left the inside 3 of the reservoir 2. On contact, a warning lamp is illuminated to show that the reservoir needs replenishing.