baber/WOPTO huggingface dataset:
Patent GB-1389889-A (GB)
Title: Control device for an automatic machine tool
IPC: B23Q15/00
Filed: 1972-10-02
Abstract: 1389889 Automatic lathes FABRIQUE DE MACHINES ANDRE BECHLER SA 2 Oct 1972 [1 Oct 1971] 45415/72 Heading B3T [Also in Division G3] A control device for an automatic machine tool having a mobile headstock and at least one tool spindle facing the headstock employs positional transducers for signalling the positions of the headstock and each spindle and a speed transducer for signalling the speed of the headstock so that a logic arrangement can control the axial displacement of the tool as a function of both the speed and position of the headstock. The headstock 1 is axially moved by a cam-shaft (not shown) and its speed of movement is indicated by the output signal from tachogenerator 15 and its instantaneous position is indicated by potentiometer 17. Similar velocity and position signals are obtained for the spindle assembly 2 by tachogenerator 8 and potentiometer 10. Various control settings such as length of cut, number of cutting strokes, speed of cut and high speed advance and withdrawal speeds are set up on the units 20, 19, 27, 28 respectively and these signals together with the signals from the speed and position sensors are passed to logic circuits 21, 22, 26 where the signals are processed to apply drive signals to drive control 5 and thus operate the fluid drive 3 connected to the tool carrier. The sequence of operations of the machine is provided by cams contained in the sequencer 29. Tool changing in carrier 2 occurs by traversing the carrier until the required spindle is aligned with the headstock axis under the control of device 13. Limit switches 4 and 18 ensure that both the headstock and tool carrier are fully retracted before tool changing can occur. The machine is provided with a fast advance and retract speed so that the time taken for the tool to arrive at a cutting position is minimized. The cycle of operations is set up by hand.
Patent GB-1437038-A (GB)
Title: Process for the manufacture of butene-1-polymers
IPC: C08F4/00
Filed: 1973-09-28
Abstract: 1437038 Preparation of polybutene - 1 CHEMISCHE WERKE HULS AG 28 Sept 1973 [29 Sept 1972] 45513/73 Addition to 1432595 Heading C3P Film-forming butene-1 polymer is produced by polymerizing butene-1, alone or mixed with 0À1-15 wt. per cent based on butene-1, of a comonomer, in solution in high strength butene- 1 or in a C 4 -fraction consisting of butene-1, butene-2 and butane, at 60-120‹ C. using a catalyst comprising (a) TiCl 3 -nAlCl 3  (n = 0À2 to 0À6) which has been made by reducing TiCl 4  with an organoaluminium compound at -10‹ to 30‹ C. with optional subsequent heat treatment at 70-150‹ C., and (b) diethyl aluminium monochloride. Propene may be the comonomer but its use is not exemplified. The organoaluminium compound preferably used in (a) is ethylaluminium sesquichloride. The mole ratio Al : Ti in the catalyst overall is preferably 1 : 1 to 3 : 1.
Patent GB-1398889-A (GB)
Title: Sitting furniture
Inventor: PERSSON E S
IPC: A47C4/02
Filed: 1972-10-04
Abstract: 1398889 Seats; upholstery: securing seats EXPO NORD AB 4 Oct 1972 [5 Oct 1971 14 Dec 1971 26 April 1972 5 June 1972] 45808/72 Headings A4H A4J A4M and A4U A chair with upholstery has two lateral bent frame bars 1 joined by cross bars 18 which keep stretched a body-supporting support means fastened to the frame bars, each lateral frame bar forming a closed loop in side view, said loop having a seat section 51 and rear and front backrest sections 52, 53 the marginal portions of the upholstery on the backrest extending and being gripped between the backrest sections. In the form shown e.g. the loop has an armrest section 54, and the ends of the loop form legs 56, 58 and the seat section 51 is joined to a rearwardly extending section 57 by rigid pin 59 or an elastic body. The boyd supporting support means comprises a cloth 60 joined at its margins to seat section 51 and rear backrest section 52. The cloth margin comprises a bead 17 inserted in a channel 12 in the frame bar 1, and the cloth is stretched by rotating nuts 20 and the cross bars 18. Alternatively, a tubular cloth (22) Fig. 5 (not shown), may be passed on to tubular frame bars (21). The cloth may have an upholstery 16 with a covering fabric fixed thereto, or loose cushions 61 may be placed on the cloth. In a modification, the loop ends extend downwards together and are mounted on a rocker (45) Fig. 9 (not shown), or a beam (46) Fig. 10 (not shown), which may be common to several juxtaposed chairs.
Patent GB-1188898-A (GB)
Title: Novel Carbamate Compounds
IPC: H01J17/16
Filed: 1968-09-27
Abstract: 1,188,898. Insecticides containing carbamates. SUMITOMO CHEMICAL CO. Ltd. 27 Sept., 1968 [6 Oct., 1967], No. 45980/68. Heading A5E. [Also in Division C2C] Insecticidal compositions containing as active ingregient at least one of the compounds 2-methyl-5-sec. butyl phenyl N-methyl carbamate and 2-methyl-5-tert. butyl phenyl N- methyl carbamate stated to be novel together with an inert carrier and if desired further insecticidal agents e.g. chlorinated hydrocarbons, organic phosphorus compounds of pyrethroids, miticides, nematocides, germicides, fertilizers or soil disinfectants are applied to the plant habitat or in the house hold in the form of wettable powders, emulsions, solutions, dusts, aerosols or are painted on or used as bait.
Patent GB-1414971-A (GB)
Title: Diverter for substantially flat articles
IPC: B65G51/03
Filed: 1972-10-05
Abstract: 1414971 Pneumatic conveyers POST OFFICE 5 Oct 1973 [5 Oct 1972] 46041/72 Heading B8A [Also in Division F1] Flat articles are diverted from their original direction of travel by directed air jets in a fixed guide surface, the output end of which is positioned to deliver articles from the guide surface in a direction inclined to their original direction of travel. In Fig. 1, letters travelling along path I are forwarded by rollers 1A past sensor 6 and by rollers 1B to diverting guide surface 2. Apertures 3 in surface 2 are supplied with air under pressure from a source not shown and are directed such that a letter forwarded by rollers 1B is attracted towards the surface by the aerodynamic action of the jets. The surface is curved to lead letters away from the original direction of travel. The diverting means may be used in sorting letters, some passing straight on by supply of air to a straight guide surface, others being diverted, as shown in Fig. 2.
Patent GB-1350957-A (GB)
Title: Methods for cutting sharp corners and notches in layups of fabric and other sheet material
IPC: B26D5/00
Filed: 1971-10-05
Abstract: 1350957 Cutting apparatus GERBER GARMENT TECHNOLOGY Inc 5 Oct 1971 [5 Aug 1971] 46241/71 Heading B4B A method for use in cutting a layup 14 of sheet material, e.g. fabric, by means of a reciprocable cutting blade 18 comprises advancing the blade along a line 48 while reciprocating it and maintaining it at a height relative to the layup wherein it extends entirely through the layup during at least a portion of each stroke and when a sharp corner 54 is reached by the cutting edge 20 of the blade, rotating the blade, while continuing its reciprocation and maintaining said height, in such direction as to move the cutting edge away from the corner along a second line 52. The cutting blade 18 is mounted on carriages 16, 34 movable in X-Y coordinates by means of electric motors 38, 40 under the control of a computor 20. As shown in Figs. 4A-4C, the blade is rotated about a vertical axis substantially coincident with the rear edge 22 of the blade so that as shown in Fig. 4C, when the blade is rotated, the material is displaced as indicated by the wrinkles 58. Upon completion of the cut 52 the blade is rotated back to the line 48 and the carriage then moved to advance the blade further along the line 48, Fig. 4E (not shown). When it is desired to cut a straight line instead of curved as shown in Figs. 4A-4C, the carriage 34 is moved in addition to the rotational movement of the blade, Figs. 5A-5H (not shown). In a modification, the blade may be rotated about an axis 64, Fig. 6C thereby displacing the material on both sides of the blade.
Patent GB-1531999-A (GB)
Title: Surface wave electro-mechanical device
IPC: G10K11/36
Filed: 1975-11-07
Abstract: 1531999 Surface wave devices THOMSONCSF 7 Nov 1975 [8 Nov 1974] 46280/75 Heading H3U The elements 3 of a reflective grating for surface waves are formed either by ion-implanted zones in substrate 1 or by selective etching of substrate 1 after zones thereof have been implanted with ions. In a resonator, Fig. 1, the electrical characteristics of a single transducer 5, 6 are modified in a stop band determined by the reflective grating. In a band-pass filter, (Fig. 4 not shown) two transducers and a plurality of resonant cavities (L 1 , L 2 , L 3 ) are provided. Among further arrangements disclosed a reflective grating 23 may be used in a Michelson type interferometer, Fig. 7, (not shown), or curved gratings may be employed (Fig. 8 not shown).
Patent GB-1060238-A (GB)
Title: Miniature reed switching capsule
IPC: H01H51/28
Filed: 1964-11-13
Abstract: 1,060,238. Reed armature relays. GENERAL REED CO. Nov. 13, 1964 [Dec. 11, 1963], No. 46313/64. Heading H2B. To reduce inter-electrode capacitance in a magnetic reed switch, a sealed tube 12 contains a relatively short rigid magnetic reed 20, a second magnetic reed 28 having a reduced portion 26 to render it flexible and a third magnetic reed 34 which is rigid and inclined at an acute angle with respect to the second reed and has an arcuate contact portion 36. The upper surface of reed 28 and the lower surface of reed 20 are convex (Fig. 3, not shown), and reed 28 may be pre-tensioned into normal engagement with the reed 34, as shown, or may lie midway between reeds 20 and 34 to form a centre-stable relay. The arcuate end of reed 36 produces a high contact pressure with a smooth wiping action and its angular aspect to reed 28 concentrates the magnetic flux at the ends to give a more efficient switching action with reduced contact bounce.
Patent GB-1209944-A (GB)
Title: Improvements in and relating to copying machines
Inventor: SPANGLER CHARLES WILLIAM
IPC: G03B27/80
Filed: 1967-10-10
Abstract: 1,209,944. Copying machine control. GENERAL ELECTRIC CO. Oct. 10, 1967 [Oct. 11, 1966], No.46316/67. Heading G1A. In a copying machine in which the image bearing material and photo-sensitive material are driven together and exposed to a printing light source for a period determined by the drive motor speed, a voltage developed in accordance with the transmissivity of the image bearing material is stored in for example a capacitor and applied to energize the motor. In the copying machine, Fig. 2, negative 61 and sensitive paper 62 pass over a roller 63 during copying and are exposed to light 65, the light 65 serving also in the determination of the average transmissivity of the negative by a photo-voltaic cell 11 when "copy present" switches 27 and 33 are actuated and the speed of a motor driving roller 33 being controlled according to the transmissivity to obtain the correct exposure. The signal developed by the photo-cell 11 which is reverse biased by diodes 13, 14, to obtain a linear current V light output, is amplified in transistor amplifiers 12, 19, 23 Fig. 1 to control a clamp circuit wherein the bias on diode 25 clamps the voltage on capacitor 30 to that of the emitter of transistor 23 to represent the measured transmissivity. The capacitor 30 is charged from the bus 15 but could alternatively be charged by the amplifier. The stored signal controls the motor speed by providing the motor energization current over terminals 58, 59, emitter follower 52, and resistor 53 providing an adequate time constant. A potentiometer 57 and diodes 55, 56 limit the minimum speed at which can be run and resistors 46, 47 determine the motor idle speed when transistor 45 is saturated by the charging of capacitor 40 in a time constant circuit initiated by the reopening of switch 33.
Patent GB-947996-A (GB)
Title: Improvements in or relating to a press for operating on sheet material
IPC: B21D22/00
Filed: 1962-12-08
Abstract: 947,996. Coining, solenoid actuating mechanism. H. LINDEROTH. Dec. 8, 1962, No. 46405/62. Headings B3H and B3Q. A press for operating on sheet material comprises a pressure plate and pawl means to move it downwardly to apply operative pressure to a tool for operating on the sheet, means vertically movable to carry the power means and pressure plate into contact with the tool and a control mechanism mounted on the pressure plate and operable by contact with the tool to initiate action on said pressure plate by the power means. The press comprises a cylinder 15 and a piston 16, pneumatically, electromagnetically or gravity-operated which makes short and rapid hammer strokes therein and to the lower end of which is attached a pressure plate 17, e.g. of steel, the assembly being suspended from an articulated arm 20 via a counterweight and pulley mechanism 21 and a spring 22, attached to a ceiling. The press is electrically actuated by two manually-operated control buttons 23, 24 adjacent to a pair of guide handles 18. The electrical control circuit comprises a number of metal strips 25, e.g. two, supported in an insulating material 27 which is loosely retained in the underside of the plate 17 by a projection 30 and screws 31, a projecting contact 28 on each strip protrudes through the insulating material 27 and when all the strips 25 are in their fully up position, i.e. in contact with a metal die 36 engage contacts 32 in the plate to actuate a solenoid 33 which operates a valve 34 to control the operation of the piston. The die 36 is disposed on a stamping pad 37 which comprises a hard base 38, e.g. aluminium covered with a thin layer 39 of softer material, e.g. a rubber compound which may be bonded or painted on to the base and upon which a sheet of material 40 is placed. When the press is used with double-edged cutting knives the plate 17 may be faced with an aluminium sheet. When the press is used for embossing the pad 37 is not provided with a layer of soft material, an embossing die 36 is placed on top of the sheet material and the depth of imprint determined by the height of the die flanges which contact the pad when downward pressure is applied.
Patent GB-1048258-A (GB)
Title: Improvements in or relating to means for attaching a face mask to a support worn on the head
Inventor: WOOD ROBERT ALAN
IPC: A62B18/08
Filed: 1962-12-10
Abstract: 1,048,258. Hook fastenings; clamp fastenings. AIRMED Ltd. Dec. 9, 1963 [Dec. 10, 1962], No. 46555/62. Headings E2A and E2B. [Also in Division A5] An oxygen mask 1 is held in place by chains 2 at least one of which is attached to a helmet 3 by a hook and eye arrangement, the chains 2 forming part of a toggle mechanism as described in Specification 877032. One end of the chain 2 has an eye 6 which co-operates with a hook 5 which carries a locking member 15. To form the link locking member 15 is slid part way around the bight 14, the eye 6 is passed through the formed gap 13 and the locking member 15 is then moved to its locking position blocking the gap 13. The hook shank 7 is movable in a slot of plate 8 by rotating nut 9 to vary the effective length of chain 2, the plate 8 being joined to plate 18 which is connected to helmet 3. The locking member 15 may be made of elastomeric material such that the eye 6 can be forced from the hook 5 when the member 15 is in its locked position. The other chain 2 may be permanently fixed to helmet 3.
Patent GB-986310-A (GB)
Title: Telephone tone ringer
Inventor: BEADLE ANTHONY CRISP
IPC: H03G3/10
Filed: 1963-11-27
Abstract: 986,310. Substation circuits. STANDARD TELEPHONES & CABLES Ltd. Nov. 27, 1963, No. 46851/63. Heading H4K. A ringer circuit which provides a tone of increasing volume comprises a transistor oscillator TK supplying an electro-acoustic transducer RC and connected in series with a thermistor TH2 having a negative temperature coefficient and a heating time greater than twice the interruption period of the incoming ringing current. The oscillator TK has a feedback transformer W1, W2 with a tuning capacitor C3 to give an output preferably of about 1700 cycles per second. The transducer RC may be of the balanced armature type with a short tuned horn. The volume of the tone may be regulated by a 4-position switch S which associates resistors with the thermistor TH2, or excludes the latter, or, in the fourth position, brings in another tone generator which may be remotely situated. The incoming ringing circuit includes a thermistor TH1 which has a heating time shorter than the interruption period and a half-wave shunt rectifier D.I. A resistor R1 and capacitor C1 constitute a lowpass filter which serves to attenuate harmonics of the ringing frequency.
Patent GB-1219950-A (GB)
Title: Electrophoretic coating process
Inventor: KORAL JERRY NORMAN
IPC: C09D167/00
Filed: 1968-10-02
Abstract: 1,219,950. Artificial resin compositions. AMERICAN CYANAMID CO. 2 Oct., 1968 [20 Nov., 1967], No. 46872/68. Headings C3B, C3P and C3R. [Also in Divisions C2 and C7] A composition for electrodeposition comprises an aqueous dispersion of a mixture, by wt., based on total solids of (A)+(B), of (A) a water-insoluble substantially fully-etherified tetramethylol guanamine containing on the average 13 C atoms exclusive of those in the triazine ring, 5-40%; and (B) a waterdispersible, non-gelled, ionically-charged, polymeric material which is heat-reactive with (A), 95-60%. (A) has formula where R, R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are the same or dif ferent C 1-8  alkyl radicals, and Z is H, a C 1-8  alkyl radical, or an aryl radical; however (A) may also unavoidably contain some incompletely methylolated and etherified guanamine. Tetramethylol benzoguanamine methyl ethers are prepared by heating a mixture of CH 3 OH, NaOH, and paraformaldehyde to 45‹ C., holding for 15 minutes, and adding benzoguanamine. The mixture is refluxed and then cooled to 28‹ C. HNO 3  is added, and later neutralized with NaOH. The mixture is then vacuum concentrated, and CH 3 OH and HNO 3  added. The mixture is held at 32-35‹ C. for 1 hr., neutralized with NaOH, and vacuum concentrated. Polymeric material (B) contains carboxyl, alcoholic hydroxyl, or amide group to cross-link with (A). (B) may be cationic or anionic. It may be a polyester or maleinized oil or be prepared by vinyl or epoxy polymerization. Preparation of B: (i) butyl acrylate, acrylic acid, butyl mercaptan, and cumene hydroperoxide are reacted in dioxane. The copolymer is dissolved in aqueous ammonia, (ii) styrene, ethyl acrylate, acrylic acid, and hydroxy ethyl methacrylate are reacted in the presence of a solution of NaHCO 3 , Na lauryl sulphate, and ammonium persulphate, (iii) styrene ethyl acrylate, acrylic acid, and acylamide are reacted in the presence of a solution of NaHCO 3 , Na lauryl sulphate, and ammonium persulphate, (iv) 4,4<SP>1</SP>-dihydroxy diphenyl dimethyl methane, epichlorohydrin, and tetraethylene pentamine are reacted in toluene; the resin is dissolved in aq. acetic acid. Examples of (B) are: maleinized polyester prepared from styrene/ allyl alcohol copolymer, tall-oil fatty acid, and maleic anhydride; butylacrylate/styrene/acrylic acid copolymer; styrene/ethyl acrylate/acrylic acid/hydroxyethyl methacrylate tetrapolymer; styrene/ethyl acrylate/acrylic acid/acrylamide tetrapolymer; alkyd prepared from stearic acid, trimellitic anhydride, phthalic anhydride, and styrene/allyl alcohol copolymer. The compositions may contain surfactants; other solvents, e.g. dioxane or 2-butoxyethanol; or pigments, e.g. TiO 2  or Fe 2 O 3 . For electrodeposition, the compositions may contain 3-30% total resins solids. The pH may be 1-11. The compositions may be deposited on steel or Al panels, at 100 v. for 1 minute or 35 v. for 3 minutes. The coated panels are then baked at 300-350‹ F.
Patent GB-1002706-A (GB)
Title: Extrusion of ethylene oxide polymers
IPC: B29C48/10
Filed: 1963-11-28
Abstract: 1,002,706. Extruding ethylene oxide polymers; films. UNION CARBIDE CORPORATION. Nov. 28, 1963 [Dec. 27, 1962], No. 46973/63. Headings B5A and B5B. Ethylene oxide polymer, preferably poly- (ethylene oxide) having a reduced viscosity of at least 2 as determined in a solution of 0À05 gms. of the polymer in 100 mls. of water at 25 C., is heated to between 50 C. and 150 C. and is extruded at a pressure between 500 p.s.i. and 5,500 p.s.i. such that the reduced viscosity of the extruded polymer is no less than that given by where R<SP>1</SP>V<SP>1</SP> is the reduced viscosity of the polymer as initially employed in the process. Polymers with modifying agents, admixtures of the polymers with other polymer-like materials and with admixtures of foreign components may be similarly extruded. The material may be used in the production of films by the blown tube method. Examples of the extrusion of poly(ethylene oxide) in suitable apparatus and of the properties of a film produced using the extruded material are given. Specification 654,550 is referred to.
Patent GB-1199984-A (GB)
Title: Alternating Current Regulating Apparatus with Closed-Loop Feedback Control
Inventor: BROOKMIRE JAMES LOUIS
IPC: G05F1/445
Filed: 1967-10-16
Abstract: 1,199,984. Control systems for gas discharge lamps. GENERAL ELECTRIC CO. 16 Oct., 1967 [5 Jan., 1967], No. 47114/67. Heading H2H. [Also in Division G3] An apparatus for supplying a regulated alternating voltage to a load 31, e.g. a discharge lamp or a motor, comprises a transformer T3 having its primary winding connected to A.C. input terminals 19, 20 over a phase-controlled semi-conductor switching circuit 15; a feedback circuit 16 for deriving an input signal representative of load voltage; a reference circuit 11 for comparing the said input signal with a preselected comparison signal; a differential amplifier 12 to which is applied the output from circuit 11 and which may include a resistor/capacitor combination to give a lag-lead stabilization; a firing circuit 13 which receives the output from amplifier 12 and which thus produces firing pulses for the switching circuit 15 in dependence upon variations in load voltage, whereby the firing angle of the switching circuit 15 is controlled in a corrective sense; and a full-wave rectified power source 14 which is energized from the supply terminals 19, 20 and which supplies the circuits 11, 12, 13. The embodiment shown in Fig. 1 maintains constant the R.M.S. value of the voltage applied to the load 31, this voltage being detected by the feedback circuit 16 which includes a lamp 18 and a photo-sensitive element 17 forming part of a reference bridge arrangement in the circuit 11. The switching circuit 15 may include thyristors or a bi-lateral semi-conductor, and suitable arrangements for this circuit and for circuits 11, 12, 13 and 14 are described with reference to Fig. 2 (not shown). The circuit 15 may be connected in the secondary circuit of the output transformer (Fig. 4, not shown), and the controlled output parameter may be load current (Fig. 3, not shown).
Patent GB-1335559-A (GB)
Title: Making components including sintered glass powder preforms
IPC: C03B19/06
Filed: 1970-10-05
Abstract: 1335559 Welding to sintered glass preforms COMPAGNIE INDUSTRIELLE FRANCAISE DES TUBES ELECTRONIQUES 5 Oct 1970 [16 Oct 1969] 47303/70 Heading C1M A sintered glass preform, the glass powder of at least one part of which, but not all, is coloured, is welded to a member by directing radiant heat on to the preform. As in Fig. 7, a cylindrical preform with coloured glass part 2 and uncoloured glass part 1, previously welded to a tube envelope 4, is sealed to a metal conductor 6 by infra-red radiation, which melts only the coloured glass 2. As in Figs. 8 and 10, a preform 7 with uncoloured part 8 and coloured parts 10 and 14 is secured by I.R. radiation to metal wires 16 and to a flange 12 of a glass tube 11. Ceramic elements may be similarly welded to the preform. The preform may be made as in Specification 1,335,560.