baber/WOPTO huggingface dataset:
Patent GB-661024-A (GB)
Title: The construction of buildings
IPC: E04B2/56
Filed: 1949-12-15
Abstract: 661,024. Walls. EMBERTON, J. Dec. 15. 1949. No. 29128/48. Class 20(iv) In a stud-and-slab wall in which the studs 1 have undercut grooves 2 and the slabs 3, 4 have undercut vertical flanges 5, 6, the grooves and flanges are so proportioned that the slabs can be moved horizontally into the grooves. The slabs do not touch each other nor the posts, and the spaces between the undercut parts are filled with mortar or cement grout. Rain passing through the joint spaces 9 will run vertically downward as in a fall pipe.
Patent GB-792065-A (GB)
Title: A protective system for contact converters
IPC: H02H7/10
Filed: 1955-10-13
Abstract: 792,065. Converting: LICENTIA PATENTVERWALTUNGS-GES. Oct. 13, 1955 [Oct. 13, 1954], No. 29174/55. Class 38 (2). So that the protective arrangement of a contact converter is not operated unnecessarily by transitory fault conditions, its operation is made dependent upon the simultaneous occurrence of two conditions, one of which occurs regularly each cycle and the other results from the fault. The chosen recurring condition is a change of load current through the primary winding of a transformer M, such as occurs during commutation between conducting and non-conducting periods, and would occur during backfire. At these times the transformer secondary winding applies a voltage to the anode of a valve R1, the grid of which receives voltage from the main contact bridge when an arc occurs between it and the other contacts. Only those grid voltages occurring during commutation or arc back cause valve R1 to conduct and energize release coil Sp through an amplifier comprising transformer W and valve R2. Arcs occurring at other times, e.g. at normally timed contact make and break, are ineffective. The grid may be energized by the voltage across the main switch instead of between one fixed and the bridge contact. Operation during arc back may be arranged without delay and at other times with delay. In a modification the arc voltage energizes a relay to close the circuit including the secondary winding of transformer M, Fig. 3 (not shown). Alternatively the voltage developed by an arc is diverted through rectifiers away from the grid of valve R2 except when these are blocked by a voltage from transformer M, Fig. 4 (not shown). The fault signal may be derived from an arc or overheated contact by a photo-electric cell.
Patent GB-942730-A (GB)
Title: Electric cables
Inventor: TOMICA ALOJZY
IPC: H01B13/26
Filed: 1962-07-30
Abstract: 942,730. Electric cables. STANDARD TELEPHONES & CABLES Ltd. July 30, 1962, No. 29185/62. Heading H1A. To assist bending of electric cables of the type which includes a metal tube, the tube has two sets of corrugations which cross one another, one of the sets being longitudinal. As shown, Fig. 1, an insulated cable core 1 is supplied from drum 2 and an aluminium strip 3 polythene coated on one side from a reel 4. The strip is fed between rollers 22 which corrugate it longitudinally and transversely and then passes to a forming tool 5 where it is folded round the cable core and edges 6, 7 (Fig. 2), are bent away from the cable. Next these edges are sealed together by heated rollers 8, folded over to the position shown in Fig. 2, by rollers 11, 12 and fed by caterpillars 13, 15 to an intrusion machine 16 which provides a thermoplastic sheathing 17. The whole may be lapped with a thermoplastic tape prior to the extrusion of the outer thermoplastic sheath. A cord 30 may be provided for edges 6, 7 to be bent over. The aluminium strip may have a thermoplastic coating on its outside. One set of corrugations may be helical and the edges 6 and 7 may be sealed by a line weld or may merely lie on the cable with a gap between them. The circumferential corrugations may be deeper than the longitudinal ones.
Patent GB-484000-A (GB)
Title: New anthraquinone dyestuffs
IPC: C09B1/24
Filed: 1936-10-28
Abstract: New acid wool dyes are made by reacting the boric acid ester of 1.5-dihydroxy-4.8-diamino anthraquinone-2.6-disulphonic acid in conc. sulphuric acid with an alkyl phenol or phenol alkyl ether in which the alkyl group contains 4 to 18 carbon atoms, or with an ether of the said alkyl phenol, and then treating the resulting product with a dilute aqueous acid or alkaline reacting substance. Phenols and ethers specified are n-butylphenol, sec.-dodecylphenol, cetylphenol, resorcinol, dibutyl ether, resorcinol monododecyl ether, dodecyl phenyl ether, cetyl phenyl ether, and methoxydodecylbenzene.  The alkylphenols are made by reacting a phenol in presence of zinc chloride with an alcohol such as butyl, amyl, isoamyl, hexyl, octyl, decyl, dodecyl, tetradecyl, hexadecyl and octadecyl alcohols, and mixed alcohols such as those from coconut oil fatty acids.  In examples; (1) the boric acid ester of 1.5-dihydroxy - 4.8 - diaminoanthraquinone - 2.6-disulphonic acid is condensed in sulphuric acid with sec.-dodecylphenol, the sulphuric acid solution being then diluted with water and heated; the sec.-dodecylphenol may be replaced by sec.-cetylphenol; (2) the same boric ester is condensed as in (1) with dodecyl phenyl ether, the solution being then diluted, made alkaline, and heated; cetyl phenyl ether may replace the dodecyl phenyl ether; (3) the boric ester is treated as in (1) but using resorcinol dibutyl ether; (4) the process of 1 is repeated, but using resorcinol monododecyl ether or resorcinol monocetyl ether.  Dodecyl phenyl ether, resorcinol dibutyl ether, and resorcinol monododecyl ether are made by heating sodium phenate, disodium resorcinate and mono-sodium resorcinate with dodecyl bromide, n-butyl bromide, and dodecyl bromide respectively.  Specification 274,211, [Class 2 (iii)], is referred to.
Patent GB-894618-A (GB)
Title: Radar receiver
IPC: G01S13/44
Filed: 1960-08-25
Abstract: 894,618. Radio direction-finding. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Aug. 25, 1960 [Aug. 25, 1959], No. 29396/60. Class 40(7).  Relates to a pulse radar in which the deviation of a target from an equi-signal axis defined by the overlapping directivity patterns of two aerial receiving elements 1 and 2, Fig. 1, is obtained by applying the signals from the aerials to a magic-T junction 3 to give sum and difference signals S and D which are combined in a 3 db coupler 4 to give composite signals S + jD and D + jS, the phase difference between these signals as determined by a phase discriminator being a function of D/S and hence of the required deviation. According to the present invention errors due to noise are reduced by applying one composite signal, e.g., S + jD as shown in Figs. 1 and 2, to a 90 degrees phase shifter 15 to give a signal jS-D which is combined with the other composite signal D + jS in an adding circuit 14 to give a resultant signal 2 jS which is applied together with -the first -composite signal S + jD to the phase discriminator 12 through limiters 17 and 13, the phase difference # between these two signals being less than the phase difference #/2-2# between the two compolite signals S + jD and D + jS. As shown in Fig. 1, the composite signals are converted to IF by a common local oscillator 7. Two pairs of aerials may be used to obtain azimuth and elevation deviation error signals.
Patent GB-1172464-A (GB)
Title: Quick-Unfastening Device for Safety Belts
IPC: B60R22/32
Filed: 1968-06-20
Abstract: 1,172,464. Safety harness. QUICK-FREE S.r.1. 20 June, 1968 [23 June, 1967], No. 29491/68. Heading A3V. A connecting device for a vehicle safety belt which permits quick unfastening of the belt after a violent deceleration or crash, comprises two separable parts 1, 12 interconnected by releasable means 14 including an element 15 adapted to be weakened by a fluid chemical reagent 180 brought into contact with the element upon excessive stress in the belt whereupon the means 14 is released. The device consists of a cylinder 1 with a leaf 3 connected by a hinge pin 5 and a wing 7 to a seat frame S of the vehicle. A transverse recess 9 receives an apertured tang 12 of a stirrup 13 to which the belt Bl is secured. A locking pin 14 passes through the tang and is connected to a tension spring 20. The pin is held against the spring force by a retaining cord 15 made preferably of nylon. Surrounding a striker head 114 of the pin is a frangible annular phial 18 made of glass or rigid polyvinyl chloride and containing a liquid 180, such as formic acid in water and methyl alcohol, which reacts with nylon. Upon excessive force being applied to tang 12, striker 114 breaks the phial 18 to release the liquid 180 which weakens the cord 15 and after a delay of about 24 seconds permits spring 20 to withdraw the locking pin 14. An annular packing 24 prevents escape of the liquid and restrains movement of the striker head 114.
Patent GB-744713-A (GB)
Title: Improvements in or relating to magnetrons
IPC: H01J25/58
Filed: 1953-10-26
Abstract: 744,713. Magnetrons. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 26, 1953 [Oct. 29, 1952], No. 29522/53. Class 39 (1). In a magnetron comprising an even number of anode segments lying on a cylindrical surface and-interconnected by straps to form a resonant system, each strap interconnects two segments which, the segments being numbered circumferentially in sequence, have a number difference of an odd number larger than one and smaller than half the number of segments, i.e. for twelve segments a number difference of three or as shown, five. Figs. 4 and 5 show top and bottom views. The segments and straps are connected together in cyclic order to form a single system: 1 a 6 b 11 c 4 d 9 e 2 f 7 9 g 12 h 5 j 10 k 3 l 8 m 1. With a number difference of three, three separate systems are formed. The length of each strap plus the electrical lengths of the segments connected to it is equal to one half wavelength at the operating frequency. Mode-locking straps may be added to the anode, e.g. midway of the two ends. The straps may be rectilinear elements overlapping one another, or part-helical elements on the outside of the anode. Strap connections for ten and sixteen segment anodes are also described. Specifications 675,176 and 676,914 are referred to.
Patent GB-495912-A (GB)
Title: Transmission control in signalling systems
IPC: H04B1/46
Filed: 1937-10-29
Abstract: 495,912. Wireless transmitting and receiving systems. STANDARD TELEPHONES & CABLES, Ltd. Oct. 29, 1937, No. 29641. Convention date, Oct. 29, 1936. [Class 40 (v)] In a wireless receiving circuit having automatic volume control means controlled by the strength of incoming signals and further means, responsive to the carrier which is transmitted only during signal periods, for removing a normal disablement from the output side of the circuit, the disablement-control means is connected to the circuit at a point in front of the volume control means so as to be controlled by energy which has not been subjected to volume control. The volume control is such that it remains set at the last adjusted value when transmission ceases. The Figure shows a two-way wireless link between two lowfrequency telephone lines LW, LE. When signals of carrier frequency f1 are received by aerial RAE, the frequency f1-f2 produced by the first detector 6 is selected by the amplifier-detector circuit 12 and operates relays 13, GI, the former opening a short-circuit 15 between the audio-frequency amplifier 10 and the line LE, and operating relay 21 to disconnect the amplifier-detector 4<1> associated with the transmitting path. Relay GI connects battery 25 to condenser 27 the charge on which varies the grid bias of the intermediate-frequency amplifier 8 to effect volume control. When the volume reaches a predetermined level, relay GID in the circuit of a detector 16 controlled by the output of amplifier 8 disconnects condenser 27 from battery 25 to prevent any further charging. If the output level of amplifier 8 further increases, marginal relay GD operates to partially discharge condenser 27 through resistance 28 until the desired lower level is reached. When signals arrive in the opposite direction from line LE, amplifier-detector 4<1> energizes relay 3<1> to connect the transmitting apparatus 1<1> to the transmitting aerial TAE and relay 19 is also operated to disable the control circuits in the receiving path. In modifications, different carrier frequencies may be used for the two directions of transmission, separate control circuits may be connected to the circuit at separate points, the disablement-control means may be bridged across the receiving aerial so that the volume control can be applied to the high-frequency amplifier 5, and the volume control may be in part applied to the audiofrequency amplifier 10. The Specification as open to inspection under Sect. 91 states also that a separate pilot frequency may be used for either or both controls. This subject-matter does not appear in the Specification as accepted.
Patent GB-1391068-A (GB)
Title: Preparation of a catalytic complex for use in the poly merisation of alpha-olefins
IPC: C08F10/00
Filed: 1972-03-23
Abstract: 1391068 Polymerization catalyst complexes SOLVAY & CIE 23 March 1972 [23 March 1971 17 Aug 1971 8 Oet 1971] 29692/74 Divided out of 1391067 Heading C3P A catalyst complex comprising a major proportion of TiCl 3  is prepared by (a) reducing TiCl 4  with a compound of formula AlR n X 3n  in which R is C 1 -C 18  hydrocarbon radical, X is halogen and n is greater than 0 but not greater than 3 (b) treating the reduced solid thus obtained with a complexing agent capable of forming a complex with the T 1  cnloride and Al halide or organohalide and (c) either after step (b) or simultaneously therewith the solid is reacted with TiCl 4  to form the catalyst complex which is then separated from its reaction medium and optionally washed with inert diluent. The complexing agent may be an ether, thioether or thiol. The complex may be used together with an activator which is an organo compound of a metal of Groups Ia, IIa or IIIb of the Mendeleef Periodic Table to polymerize α-olefins having 2 to 18 carbon atoms. The complex produced by the above method has many characteristic properties which are listed including a high surface area, high pore volume, high apparent density and a characteristic X-ray diffraction spectrum and is in the form of spherical particles composed of aggregates of microparticles. In the examples hexane solutions of TiCl 4  and AlEt 2 Cl are heated together then the said product thereof is reacted with diisoamyl ether, diisobutyl ether or di-n-butyl sulphide in hexane or isodecane and then with T 1 Cl 4  to produce the catalyst complex which is used with AlEt 2 Cl to polymerize propylene (continuously and batchwise) ethylene or nbutene-1 in hexane in the presence of hydrogen, to prepare ethylene-propylene block copolymers and to polymerize propylene in bulk. In comparative examples the catalyst complex is replaced by the product of step (a) or the product of step (b) alone or with diisoamyl ether, the product of (a) reacted with TiCl 4  or T 1 Cl 4  which has been reduced with hydrogen or aluminium.
Patent GB-923878-A (GB)
Title: Control means for flashing electric signal lamp systems
Inventor: HUNT DENNIS ALBERT
IPC: H05B39/09
Filed: 1958-09-17
Abstract: 923,878. Lamp-failure alarms. ROTAX Ltd. Sept. 7, 1959 [Sept. 17, 1958], No. 29736/58. Class 118. [Also in Group XL (c)] The Provisional Specification states that in a transistor multivibrator circuit in which lamps b1, b2 flash alternately, warning of the failure of one lamp may be given by the fact that the other is illuminated continuously.
Patent GB-934000-A (GB)
Title: Improvements in or relating to hydraulic torque converters
IPC: F16D43/18
Filed: 1961-08-17
Abstract: 934,000. Friction clutches. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Aug. 17, 1961 [Aug. 20, 1960], No. 29789/61. Class 80 (2). [Also in Group XXIX] An hydrodynamic torque converter comprises a centrifugally engaged friction clutch with its driving and driven members mounted on the vaned transmitting elements. In one form, the pump P, Fig. 1, of an hydrodynamic torque converter carries a clutch ring 1 frictionally engaged by segments 4 mounted by pins 5 in sleeves 3 secured to the turbine T, increasing speed of rotation of the turbine causing centrifugal force acting on the segments to slide the latter radially outwardly against the bias of springs 6. Nuts 7 on the pins 5 can be turned to so adjust the bias of the springs 6 that clutch engagement does not occur until the speed of rotation of the torque converter has increased beyond that at which torque conversion ceases, the clutch then locking-up the pump and turbine. In a modification, each segment 12, Fig. 2, is mounted by two sleeves 10, 13 on the converter vaned element, the sleeve 10 being a sliding fit in the segment and the sleeve 13 engaging in an oversize hole. As shown, the friction ring 1 and segments 4, Fig. 1, are mounted upon the pump P and turbine T, but alternatively they may be mounted upon the turbine and pump, respectively.
Patent GB-469353-A (GB)
Title: Improvements in and relating to electric switching devices operated by press-buttons
IPC: H01H13/28
Filed: 1936-11-02
Abstract: 469,353. Snap - action switches. ALDINGER, O. Nov. 2, 1936, No. 29822. Convention date, Nov. 5, 1935. [Class 38 (v)] A switching device specially suitable for mounting in the handle of a hot-air douche for controlling the circuits to the motor and the heater comprises two push-buttons d, e which respectively move " on " and "off" two tumbler-like switches. The push-buttons are pressed apart by a spring f and as shown one of them may be stepped as at h and i so as to engage the operating levers q of the tumbler switches successively. Thus pressure on the button d causes the motor circuit to be closed before the heating circuit and pressure on the button e causes both circuits to be opened simultaneously. A similar result may be obtained by displacing the switches on their holder. The switches may also control other circuits. The casing for the device is made in two parts which are held together by a clamp z and screw c.
Patent GB-1440233-A (GB)
Title: Resettable switch
IPC: H01H35/26
Filed: 1973-06-22
Abstract: 1440233 Thermal switches; locking and unlocking switches HONEYWELL Inc 22 June 1973 [27 June 1972 (2)] 29867/73 Heading H1N A switch comprises a fixed contact 20 and a movable contact 23 biased against contact 20 and moved away by movement of operating member 13 when actuated. As arm 24 carrying contact 23 is moved upwards a member 31 pivots clockwise under the action of spring 33 to engage bent-over portion 30 of arm 24 to hold arm 24 up and the contacts open when operating member 13 moves back, member 31 being pivoted anticlockwise to permit the contacts to reclose when button 40 is depressed engaging part 42 of member 31. Spring 33 alone is not sufficient to open the contacts. Member 13 is actuated by a snap acting diaphragm and capsule 11 connected to a temperature sensing bulb through tube 12. In a second embodiment, Figs. 3-5 (not shown), member 31 is replaced by a sliding member 31<SP>1</SP> which slides to hold the contacts open, once they have been opened, under the action of a spring 33<SP>1</SP> and which is slid back to reset the switch by a pivoted lever 40<SP>1</SP>.
Patent GB-208855-A (GB)
Title: Improvements relating to machines for lining boxes
IPC: B31B7/00
Filed: 1922-11-01
Abstract: 208,855. Cadbury Bros., Ltd., and Hackett, H. Nov. 1, 1922. Coating-machines.-In a machine for attaching a plurality of paper &c. lining strips or pieces to wood &c. boxes adhesive is applied to the top edges thereof by an adjustable spring- controlled roller 8 which takes adhesive from a roller 3 rotating m a tank 2, and is traversed across the machine to deposit the adhesive on the edges of the box; the roller is carried by stems 9 depending from a carriage 10 reciprocated in transverse bars 12 by a rod 13 operated from a cam 17. According to the Provisional Specification the adhesive may be applied by four spring-controlled and vertically-movable pads supported on a carriage which is reciprocated to move the pads over an adhesive-applying band or roller and then to bring them over the box edges, where they are depressed into contact therewith by a lever.
Patent GB-239090-A (GB)
Title: Index card holder
IPC: B42F19/00
Filed: 1924-12-12
Abstract: 239,090. Rand, J. H. Dec. 12, 1924. Sheets and cards.-In a card index of the type having a number of overlapping card-holders interlocking with each other and hinged to members adapted to slide in a support or drawer, each member supports on at least one card-holder a number of separate cards of different sizes or forms. The member A, Fig. 6, provided with tongues B which slide in grooves in a file or drawer, has a number of holders 10 hinged thereto and formed with a series of perforations 11 to which cards 13 of various sizes are attached by means of tongues 12. In the modification shown in Fig. 13, cards of different sizes are attached to the holder by insertion in slots 18, 19, 20. The arrangement of cards in different positions relatively to each other permits the positions of the cards to be used for signalling purposes.
Patent GB-956400-A (GB)
Title: Containers for powdery and granular materials in bulk
Inventor: CARMICHAEL HENRY
IPC: B65D88/72
Filed: 1961-08-19
Abstract: 956,400. Pneumatic conveyers; unloading vehicles. CARMICHAEL & SONS (WORCESTER) Ltd. Oct. 24, 1962 [Aug. 19, 1961], No. 29987/61. Headings B8A and B8E. A transportable cylindrical container 10, Fig. 2, capable of being tipped for uhloading, has a fluidizing discharge box 11 at one end having divergent sides 111 merging substantially tangentially into the periphery of the container. The box is fitted with a porous floor 113 for fluidizing the material which flows into the box through openings 101, Fig. 3, cn the underside of the container and disposed symmetrically on each side of a deflector 13. The outlet 123 has its axis above the porous floor 113 and the flow is controlled by a valve 121, Fig. 5. The discharge is assisted by fluid supplied at a manifold 122.