baber/WOPTO huggingface dataset:
Patent GB-1239651-A (GB)
IPC: C08K5/3415
Filed: 1969-02-12
Abstract: 1,239,651. Polypropylene. SUMITOMO CHEMICAL CO. Ltd. 12 Feb., 1969 [16 Feb., 1968], No. 7721/69. Heading C3P. A polypropylene composition comprises 0À1- 20 parts by weight of a bismaleimide having the following formula wherein R is an aromatic hydrocarbon radical or its derivative radical, 0À05-5 parts of a hydroperoxide decomposer and 100 parts of polypropylene. The composition is heated at 150-280‹ C. to achieve cross-linking. Polypropylene: homopolymer or copolymer with a small amount of a monomer (ethylene) copolymerizable with propylene, or a blend of the homopolymer or copolymer with a small amount of polyethylene or ethylene-propylene rubber. Bismaleimide: m-phenylene-, 4,4<SP>1</SP>-methylenediphenyl-, 4 - methyl - m - phenylene-, 4 - 41- ethylene - diphenyl-, 4,41 - vinylenediphenyl-, p - phenylene-, 4,4<SP>1 </SP>- sulphonyldiphenyl-, 2,2<SP>1</SP>- dithiodiphenyl-, 4,4<SP>1 </SP>- ethylene-bisoxyphenyl-, and 3,3<SP>1</SP>-dichloro-4,4<SP>1</SP>-biphenyl - bismaleimides. Hydroperoxide decomposers: dilauryl or distearyl thiodipropionate; zinc dimethyldithiocarbamate, lead diethyldithiocarbamate, sodium dimethyldithiocarbamate; mercaptobenzothiazole, dibenzothiazoyl disulphide, mercaptobenzothiazole zinc; and trinonyl phenyl phosphite, triphenyl phosphite, tribenzyl phosphite, trilauryl trithiophosphite. Thiobisphenols are stated to be unsuitable. The composition may contain such usual additives as pigments, fillers, lubricants, antistatic agents and flame-resisting agents.
Patent GB-1251029-A (GB)
IPC: C07F9/145
Filed: 1968-10-22
Abstract: 1,251,029. Tri-(4-alkylthiophenyl) phosphites. NATIONAL DISTILLERS & CHEMICAL CORP. 22 Oct., 1968 [20 Dec., 1967], No. 50163/68. Heading C2P. [Also in Division C3] The invention comprises tri-(4-alkylthiophenyl) phosphites having the formula in which R, R<SP>1</SP> and R<SP>11</SP> are C 1 -C 22  alkyl radicals and the other R's are selected from hydrogen and C 1 -C 12  alkyl radicals, the total number of carbon atoms in the said other R's in any phenyl ring not exceeding 15. They are prepared by reacting an appropriate 4-alkylthio-phenol with PCl 3  in the presence of an acid acceptor such as a tertiary amine, e.g. N,N- dimethyl aniline. The products are useful as thermal stabilizers for olefin polymers and copolymers.
Patent GB-1256550-A (GB)
IPC: G02F1/39
Filed: 1969-12-03
Abstract: 1,256,550. Parametric amplifiers; light amplifiers. MESSERSCHMITT-BOLKOW BLOHM G.m.b.H. 3 Dec., 1969 [20 Dec., 1968; 14 Feb., 1969; 28 April, 1969 (2)], No. 59058/69. Headings H3B and H4F. [Also in Division H1] Variations in the optical properties of a solid material caused by alterations in a magnetic or electric field, applied to the material at 1-100‹K. are used to amplitude modulate a laser beam from a gas laser. Suitable solids for use with an infra-red beam of wavelength 8-11 Á include holmium ethyl sulphate, strontium titanate, and doped or undoped tellurium, tellurium compounds- or gallium arsenide. Themodulating solids are used at low temperatures such asthose of liquid helium or nitrogen. Modulation frequencies of the order of 100 giga Hertz are stated to be possible. The first two of the above mentioned solids may be used to effect modulation because a variation in the applied electric and/or magnetic fields alters the wavelengths-of the material's absorption maxima and minima. The remaining solids may be used to effect elliptical polarization and hence to produce amplitude modulation, or alternatively; Fig. 4; may be used at 220 to produce relative phase differences between two beams 212, 213 derived from a single laser beam 214 by a splitter 211, so that subsequent recombination of thetwo beams gives an amplitude-modulated beam 215. This latter embodiment has the advantage that it does not dissipate energy in the modulating material. Parametric amplifiers-Another method of modulating a beam is shown in Fig. 5, where a tellurium crystal 120, which may be subject to an electric or magnetic field, is used; to produce harmonics of a laser beam 114. The first harmonic is selected by a filter 121 and passed into a parametric resonator containing a further tellurium crystal 124. Varying the field applied to this latter crystal-produces parametric amplification of the input, and may also modulate the output beam. A further filter 126 may-be used at the output.
Patent GB-1256749-A (GB)
IPC: F01D17/26
Filed: 1969-07-15
Abstract: 1,256,749. Steam turbines. TOKYO SHIBAURA DENKI K.K. July 15, 1969 [July 15, 1968], No.35620/69. Heading F1T. [Also in Division G3] The fluid path between an electrically operated servo valve 21 and a servo-motor 13 controlling a valve 4 regulating the steam supply to a turbine 1 is interrupted by a valve 24 when a cut-off valve 49 receives an emergency trip signal. Dangerous over-speeding of the turbine or a fault in the electrical control system causes the trip signal to operate an electromagnetic device 48 on the cut-off valve which releases the pressure in a device 41 to operate the valve 24. The pressure may also be released by a regulator 51 in response to an abnormal increase in speed. Operation of the valve 24 causes the upper side of the servomotor piston to be connected to a high pressure oil line 40b and the lower side to be connected to drain port 35 so that the valve 4 is closed by the linkage 11, 10, 7, 5. In the normal position of the valve 24 the opposite sides of the piston are connected to output lines 38, 39 from the servo valve. The servo valve is supplied with highpressure flame retardant synthetic oil, such as a phosphoric ester, and the cut-off device with low-pressure turbine oil.
Patent GB-1257172-A (GB)
IPC: C09C3/08
Filed: 1968-12-20
Abstract: 1,257,172. Hydrophobic metal compounds. HENKEL & CIE G.m.b.H. 20 Dec., 1968 [28 Dec., 1967], No. 60644/68. Heading C1A.  Water-repellent properties are imparted to an oxide or silicate of a di- or tri-valent metal by treating the oxide or silicate in a finely divided form with 1 to 20% by weight, based on said oxide or silicate of a compound of formula R-CO 2 R<SP>1</SP> where R represents an aliphatic residue with 10 to 26 C atoms and R<SP>1</SP> represents a hydrogen atom or an alkyl group having from 1 to 4 C atoms, at 150 to 350 C. The treatment time may be 15 to 150 minutes. The finely divided oxide or silicate should have a bulk density below 400 g/l. Specified oxides and silicates are: (1) oxides of Ca, Ba, Sr, Mg, Al, Fe, Cd, Bi, Ni, Co, Pb; and (2) silicates of Al, Ca and Mg, and Perlite. Silicates produced by reacting Na or K silicates with salts of di or tri-valent metal are suitable..
Patent GB-1258303-A (GB)
IPC: B65D30/20
Filed: 1969-03-17
Abstract: 1,258,303. Gusseted bags. ROBINSON SACKS Ltd. 6 March, 1970 [17 March, 1969], No. 13915/69. Heading B8K. A bag or sack with side gussets is closed at one end by folding over an end portion of a bag tube, adhesively securing this end portion to the adjacent outer surface of the bag tube and adhesively securing a cover strip 5 over the end margin of the end portion and adjacent portions of the bag tube. The end portions 6 of the strip 5 are also folded around both margins of the outer wall and extend into the gusset folds where they are further secured to the tube. The bag or sack is composed of a cross-plastics laminate.
Patent GB-1258827-A (GB)
IPC: G01N1/34
Filed: 1969-04-08
Abstract: 1,258,827. Sampling for chromatography. CESKOSLOVENSKA AKADEMIE VED. 8 April, 1969 [9 April, 1968], No. 17887/69. Heading B1X. Cartridges 1, 2 mounted on transportation table 3, and containing samples to be separated by chromatography which are sorbed in ion exchange material 5 located between porous plates 6, 7, are brought to the position shown by pressure head 9 and then deaerated (see cartridge 2) by pumping a suitable liquid from vessel 23 through the cartridge and contents. While deaeration is proceeding, eluent is passed by pump 14 through line 15, duct 15' and line 16 to and through previously deaerated cartridge 1, the contents thereof being eluted through duct 13 to column 8. When the contents have been eluted, spindle 14 is rotated clockwise, allowing eluent to pass directly from line 15 to column 8. Pressure head 9 is then raised and table 3 rotated to bring cartridge 2 to the position previously held by cartridge 1.
Patent GB-1259131-A (GB)
IPC: E01C13/06
Filed: 1969-01-09
Abstract: 1,259,131. Bituminous road surfacing material. WALTER DE COUET STRASSENBAU UND TIEFBAU. 9 Jan., 1969 [9 Jan., 1968; 1 Oct., 1968], No. 1333/69. Heading C3N. A heterogeneous bituminous road surfacing material comprises a modification of the conventional tarmacadam type comprising mineral material bonded with a mastic containing a filler, wherein the filler comprises at most 18% by weight of the total material and consists of mineral material of particle size less than 0À09 mm., a wetting agent and at least one of the following components: (a) a natural or synthetic olefinic polymer or olefinic polymer mixture; (b) a fibrous mineral material; and (c) a clay. The fibrous mineral material may be asbestos, glass fibres or slag wool. The olefinic polymer may be rubber which may be in the form of a powder. A preferred amount of filler is about 7À5% by weight of the total material.
Patent GB-1264521-A (GB)
IPC: B01D1/06
Filed: 1969-06-02
Abstract: 1,264,521. Steam generation. WESTING- HOUSE ELECTRIC CORP. 2 June, 1969 [13 June, 1968], No. 27797/69. Heading F4A. A liquid metal heated steam generator includes a vessel 22, Fig. 1, having primary liquid inlet and outlet means 31, 35 for the liquid metal and heat exchanging tubes 29 disposed within said vessel and having secondary coolant inlet and outlet means for the water to be vaporized, the heat exchanging tubes 29 forming separate modules 27 within the vessel and each module having its own coolant inlet 50 and outlet 52 formed by a respective channel head 62. The liquid metal, for example sodium, is admitted through a pair of diametrically opposed lined inlets 31, each connected through a T-joint 32 to a pair of tubular conductors 33, and passes through a pair of diametrically opposed outlets 35 to heaters (not shown), for reheating and recirculation. The liquid metal extends to a level 88, above which is inert gas under pressure. Each module 27 typically comprises 25 vertical planes of 20 tubes each and forms a unit with inlet and outlet tube plates 54, Fig. 3, having holes through which the tubes 29 are sealed pressure tight, an annulus 64 of each tube plate 54 being welded to a channel head 62 with a nozzle 66 and the whole tube-to-tubeplate assembly being protected by an annular shield 70. The modules 27 are nested side by side, Fig. 2 (not shown), and are each enclosed protectively in a rectangular shell of baffles 44 within a cylindrical shield 74. The conductors 33 extend vertically into substantially triangular spaces (80) into which the liquid metal flows to cover the modules 27. In the event of leakage from the tubes 29, gas is generated and ruptures a disc 36 and also causes a pressure responsive device 40 to actuate a control 42 whereby valves are actuated to stop flow through the generator and drain tubes 29 and vessel 22.
Patent GB-1264886-A (GB)
IPC: B41K3/64
Filed: 1969-06-05
Abstract: 1,264,886. Printing apparatus. LITTLEWOODS OF LIVERPOOL Ltd. 3 Sept., 1970 [5 June, 1969], No. 28400/69. Heading B6C. Pools coupons from a stack 11 are fanned out and passed successively through an electronic reading device 19 which produces a signal fed to a computer to record the information scanned. The coupons are then subjected to a photoelectric cell 20 which controls a rotary printing numbering device incorporating means whereby the printing operation on each coupon is recorded at the computer. The printing device comprises an inking roller 23 which is readily removable, a printing cylinder 21 having a numbering box, and an impression cylinder 22 swingable through the actuation of a handle 49 about a shaft parallel to the cylinder shaft against springs 47 to open the bight between the two cylinders. The printing cylinder 21 is associated with a one-revolution clutch controlled by the photo-electric cell 20.
Patent GB-1267085-A (GB)
IPC: H01S5/06
Filed: 1969-06-05
Abstract: 1,267,085. Semi-conductor devices; lasers. RCA CORPORATION. 5 June, 1969 [5 June, 1968], No. 28534/69. Headings HlC and HlK. [Also in Division C4] Bulk effect oscillations between electrodes 22, 24 on the upper n-type region 14 of a semiconductor body 10 modulate the potential across a portion 58 of a pn-junction 16 and either cause it to be periodically forward biased if it is normally reverse biased, or modulate the degree of forward biasing if, as in the embodiment shown, it is forward biased by a continuous or pulsed voltage source 64. Light emitted from the junction portion 58 during forward bias conditions is thus modulated by the oscillations in the region 14, and further modulation may be produced by a microphone 36 or other variable impedance device in series with the biasing source 64. It is stated that the effect of varying the bias by means of the microphone 36 is to vary the frequency of oscillations in the region 14. In the form shown the biasing source 64 is of sufficiently high voltage to induce lasing at the junction portion 58, opposite faces of the body 10 being polished to provide an optical cavity. A non-lasing arrangement is also described. The body may be of lnP, GaAs x P 1-x  or GaAs, the dopants in the p- and n-type regions being, in the case of GaAs, respectively Zn and Si.
Patent GB-1288847-A (GB)
IPC: B01D33/00
Filed: 1970-09-11
Abstract: 1288847 Rotary drum; moving band filter TECHNICAL FABRICATORS Inc 11 Sept 1970 [31 Dec 1969] 43674/70 Heading B1D Suspended solids are removed from slurries to a tank 15 within which a horizontal rotating by feeding the slurry continuously via inlet 35 inward flow filter drum 20 is partially immersed. A continuous flexible sheet of filter paper 40 is fed from roll 41, around the arcuate bottom 11 of the tank and a guide plate 61, onto the wall 16 of the drum which is perforated. The paper is pulled through the liquid by the clockwise rotating drum for almost a whole turn before being removed at 48 from the drum surface. The liquid is sucked through the paper into the drum, e.g. by a downstream pump, as it rotates and leaves via the hollow shaft of the drum. Solids are deposited on the paper sheet. The regions of the drum wall at which the paper sheet is fed to and removed from the drum are closely adjacent and above the liquid surface. The tank 15 is fitted with overflow and drum outlets 36 and 37.
Patent GB-1289381-A (GB)
IPC: A47L9/06
Filed: 1970-01-30
Abstract: 1289381 Vacuum cleaner nozzle ELECTROLUX Ltd 30 Jan 1970 [4 Feb 19691 4585/70 Heading A4F A vacuum cleaner, of the type in which working members can be brought alternately into contact with a surface being cleaned by a shifting device 15 sensitive to air-pressure in the implement, includes an operating device 24 which in normal automatic operation, opens or closes a valve 22, 23 between a suction channel of the implement 14 and the shifting device 15 according to the work surface being cleaned. A vacuum cleaning implement has a nozzle connected to vacuum by channel 14, a brush 16 connected to diaphragm 15 and movable through apertures 18 in response to movement of the diaphragm 15. On hard floors, Figs.1, 3 (not shown) push rod 24 is clear of the surface being cleaned, valve disc 22 is seated on seat 23 and the space above diaphragm 15 is isolated from the vacuum in the suction nozzle and connected to atmosphere by apertures 29 and 33. Springs 17, Figs. 1, 2 (not shown) then push brushes 16 out through apertures 18. On soft (carpeted) floors, wheels 27 sink into the pile, push rod 24 and valve disc 22 are lifted and the space above diaphragm 15 is connected to vacuum via apertures 29, 30, 31, 32, and the diaphragm 15 and brushes 16 are lifted out of contact with the surface. Air leak aperture 33 could be omitted if the aperture about push rod 24 were enlarged. Valve seat 23 can be moved by manually adjusting knob 28 so that ultimately the brushes would always be retracted or extended.
Patent GB-1290146-A (GB)
IPC: B23H9/06
Filed: 1969-01-27
Abstract: 1290146 Electrolytic marking EDWARD PRYOR DEVELOPMENTS Ltd 26 Jan 1970 [27 Jan 1969] 4385/69 Addition to 1109053 Heading C7B A cylindrical metal object e. g. a twist drill is electrolytically marked by bringing an electrode member 10 bearing relief or integlio markings (e. g. letters or figures) into close proximity with the surface to be marked flooded with electrolyte e. g. from feed pipe 20, with a rolling action, e. g. using an insulated pressure pad 18 or wheel (42), Fig.4 (not shown), with resilient peripheral portion (44) for rolling the object across the electrode member surface. As shown the member is insulated by an epoxy resin 16 from a pair of steel plates 12, 14 flanking it, the upper edges of the plates standing proud of the top of the member. The electrolyte may be fed via flow passages (28, 30), Fig. 2 (not shown) in the member.
Patent GB-1295475-A (GB)
IPC: H04B1/04
Filed: 1969-09-18
Abstract: 1295475 Radio transmitting systems PYE Ltd 18 Sept 1970 [18 Sept 1969] 46050/69 Heading H4L In a keyed carrier radio-frequency transmission system, means are provided for switching over to a stand-by transmitter in the event of the failure of the transmitter in use. As shown transmitters TXA, TXB have their R/F outputs connected respectively to normally closed and normally open contacts 2 operated by relay coil 22 and also to monitor units 4A, 4B. Contacts 2 connect the transmitter in use, in this case TXA, to the aerial, switch 17 being set in the position shown to apply an enabling signal to input 16A of unit 15. Assuming that no keying signal is present on terminal 7, the input at 16A sets the outputs of unit 15 so that outputs 18A, 19B provide enabling inputs to gate 8A and output 19A applies a blocking signal to gate 8B. With no keying signals the output of gate 8A will have a value V1 and when a keying signal is applied it will cause the output to change to a value V2 which will key the transmitter TXA on. Under these conditions, with transmitter TXA on, monitor unit 4A will produce an output of value V1 if the R/F power output is at least equal to a predetermined level, and of value V2 when the transmitter is off, the output of monitor 4B remaining at value V2. OR gates 11A 11B pass signals V1 but block signals V2. Before the keying signal is applied, the input V2 from monitor 4A is blocked but the input V1 from gate 8A is passed via delay 12A to set a memory unit 13A to the condition "TXA serviceable" in which there is no output to change over the control unit 15. When the keying signal is applied there is a time interval before the transmitter TXA attains full power during which both inputs to gate 11A will have value V2 and the delay 12A is such that its output is maintained long enough to cover this interval. If during a transmission, the output of TXA falls below the predetermined level the output of monitor 4A changes to value V2, no signal passes gate 11A and after the delay produced at 12A, memory unit 13A is set to the condition "TXA failed" and is locked in that condition. This resets the control unit 15 so that outputs 19A, 18B enable gate 8B and output 19B blocks gate 8A and the transmitter TXB becomes operational, relay 22 via gate 20 changing over the aerial 3. If TXB fails, no change back to TXA is initiated but keying continues to be directed to TXB so that if the failure is not complete the transmission will continue at a lower output. After a fault has been cleared the system may be reset by push-button 23 and either TXA or TXB may be selected as the main transmitter by switch 17. The logic circuitry in memories 13A, 13B, and gate control 15 is described, Fig. 2 (not shown), together with alarm signalling indicating that one or both transmitters have failed.
Patent GB-1295921-A (GB)
IPC: H03K3/80
Filed: 1970-01-23
Abstract: 1295921 Generating oscillations; transistor pulse circuits AUTOMATION INDUSTRIES Inc 23 Jan 1970 [27 Jan 1969] 3335/70 Headings H3B and H3T A regular train of A.C. pulses of ultrasonic frequency is produced by applying driving pulses from a pulse generator to the primary winding 64 of a saturable transformer 60 having its secondary winding 72 connected to a resonant circuit, the transformer saturating each time it receives a driving pulse, whereupon collapse of its secondary voltage causes the resonant circuit to generate an oscillatory transient of controlled duration. As shown, pulses are applied to terminal 52 of a transistor monostable multivibrator 30 which is connected through a transistor amplifier 34 to primary winding 64 of step-up transformer 60. The voltage induced in secondary winding 72 is applied through a capacitor 76 to a resonant circuit comprising inductors 103, 114 and a selected capacitor 150, 152, 154, saturation of the transformer and consequential collapse of its secondary voltage, producing an oscillatory transient during which inductor 103 saturates and terminates the oscillation by discharging rapidly through normally back-biased diodes 90, 92, 94, 96. Selective positioning of ganged switches 112, 116, 128, which determine the inductance and capacitance of the resonant circuit, enables the resonant frequency of the oscillatory transient to be selected. Output noise is removed by applying the oscillatory transient through a diode bridge 170 which also effects a sharp cut-off at the output terminal 192. The ultrasonic pulse train is used in a conventional ultrasonic testing system, Fig. 1 (not shown). The pulse length is determined by an adjustable damping resistance network 166, 196.
Patent GB-1295974-A (GB)
IPC: C09B25/00
Filed: 1970-08-19
Abstract: 1295974 Quinophthalones GAF CORP 19 Aug 1970 [28 Aug 1969] 39912/70 Heading C4P Dyes are of the formula wherein X is H, Cl, Br, C 1-4  alkyl or phenyl, Y is H, Cl, Br, C 1-4  alkyl or jointly with X forms the benzo configuration and Z represents the atoms necessary to complete with the adjacent N atom a 3 to 6 membered heterocyclic ring to which a benzene ring may be fused, e.g. a morpholine, piperidine, 2-, 3 or 4-pipecoline, pyrrolidine, pyrrole, pyrroline, indoline, indole, ethyleneimine, trimethyleneimine, piperazine, pyrazole, 2 pyrazoline or tetrahydro thiazole ring. The dyes are prepared by forming the 4-carboxy substituted dye, 4-substitution being in the phthalone portion by the usual condensation methods and reacting this with a thionyl halide and the appropriate heterocyclic base. The quinoline portion may initially have a 4- carboxy group which is removed during processing. The dyes may also be formed completely by the usual condensation methods. The dyes may be milled with a naphthalene sulphonic acid condensate dispersing agent and dispersed in water containing an alginic acid thickener and a sodium alkyl naphthalene sulphonate and used to dye polyester fibres by padding, drying and curing.
Patent GB-1296563-A (GB)
IPC: B63C11/16
Filed: 1970-07-30
Abstract: 1296563 Diving-masks H BARDEHLE 30 July 1970 [31 July 1969] 36896/70 Heading A5T A diving mask 1 is adapted to enclose the user's eyes, nose and mouth and has a transparent face plate 2, an inlet breathing tube 5 and an outlet breathing tube 10, which tubes have U-shaped portions at one end and can be closed by a common valve 7, 8, the inlet tube being connected directly to an opening through a wall of the mask, and the outlet tube being formed by a flexible pipe extending from within the mask through the inlet tube 5, and terminating just before the valve. The tube 10 is preferably made of plastics material having a mouthpiece 12 attached to the end 11 within the mask 1. Said opening through the mask wall may be at the top or at the side of the mask, and the tube 10 may be led from the opening towards the user's mouth along a side periphery of the plate 2 or, in the case of a top centre opening, so that it extends between the user's eyes and along his nose.