baber/WOPTO huggingface dataset:
Patent GB-739249-A (GB)
Title: Improvements in and relating to a vertical vacuum cleaner
Inventor: FISKER PEDER ANDERSEN
IPC: A47L5/36
Filed: 1954-01-27
Abstract: 739,249. Vacuum cleaners. AKTIESELSKABET FISKER & NIELSEN., and BANGSVEJ, P. Jan. 27, 1954, No. 2538/54. Class 8 (1). [Also in Group XXXV] A vertical vacuum cleaner is constructed similarly to that disclosed in Specification 695,246 and the purpose of the invention is to minimize noise by supporting the motor-fan unit at points coinciding or substantially coinciding with a plane passing through the centre of gravity 80 of the rotating parts, viz. armature, armature shaft and fan blades. The level of the motor-fan unit support lies where the outwardly-directed flanges 20 of the motor casing 17 together with a resilient ring 16 rests on a shoulder 15 of a bucket-shaped bearer 12. Specification 675,921 also is referred to.
Patent GB-730010-A (GB)
Title: Improvements in and relating to flying controls for aircraft
Inventor: MORRALL JOHN WILLIAM
IPC: G05G1/00
Filed: 1952-01-31
Abstract: 730,010. Linkwork. BOULTON PAUL AIRCRAFT, Ltd. Feb. 2, 1953 [Jan. 31, 1952], No. 2634/52. Class 80 (3). [Also in Group XXXIII] The ratio of longitudinalmovement of two links 4, 5 is varied by varying the inclination of a surface 2 along which is movable a pivot connection between the two links. In the embodiment of Fig. 1, the part tubular member 2 is pivotable about an axis 40 by means of link 18 joined to lug 20. The casing 22 contains an internally-threaded cylinder mounted in thrust ball bearings. A pulley is fast to the cylinder, and is rotated by cables driven by a reversible electric motor or manually. The cylinder contains a threaded block attached to lug 20, so that rotation of the cylinder causes the leg to rise or fall, tilting member 2. A pivoted connection between links 4 and 5 slides in member 2, so that the ratio of the longitudinal movements of the reds depends on the inclination of member 2. As in Fig. 3, member 2 consists of angle irons 1 secured to rod, rotatable by link 18. The pivotal connection 6 between rods 4 and 5, of which the latter is forked, is slidable in angle irons 1 by means of rollers 8 or phosphor-bronze slippers. The member 2 may be of any desired shape to cause the ratio of link movement to vary with the inclination of member 2 in any way.
Patent GB-486844-A (GB)
Title: Improvements in or relating to paraffin incandescent burners
IPC: F23D3/00
Filed: 1938-01-27
Abstract: 486,844. Wick burners ; air supply. EHRICH & GRAETZ AKT.-GES. Jan. 27, 1938, No. 2662. Convention date, Feb. 6, 1937. [Class 75 (i)] In a wick burner a greater air supply is provided by having as shown two burner cones 14 and 16, the lower 16 perforated at 15, and an air deflecting flange 8 spaced from the wick tubes to prevent conduction of heat thereto and connected to basket 2 by spaced limbs 9 or by a perforated cone 9a, a larger flame without sooting of the mantle being obtainable and a greater exposure of the wick which is thus more easily lit. In emergency, should the mantle break, a luminous flame for lighting is given by the removal of cone 14, if the apertures 15 are large.
Patent GB-1332524-A (GB)
Title: Fuel injection systems for internal combustion engines
IPC: F02D41/00
Filed: 1971-01-19
Abstract: 1332524 Fuel injection systems ROBERT BOSCH GmbH 19 Jan 1971 [22 Jan 1970] 2668/71 Heading G1N In an I.C. engine fuel injection control system, basic injection valve opening pulses I n  produced by a monostable multi-vibrator 25 are prolonged by a pulse I v  provided by a device 27, the total pulse length I g  being prolonged at starting and initial running during an interval of between 5 and 30 seconds by the effect of a timing device 30 which is actuated by the starting switch 96, this interval being independent of changes in the operating temperature of the engine. During normal running, during the pulse I n , a capacitor 60 of the device 27 is charged through a transistor 61, and at the end of the pulse I n  is discharged, the discharge time being the duration of the prolongation pulse I v . When the starter switch is closed, transistors 85, 86 became conductive and the approximately negative lead voltage on the collector of transistor 86 causes the charging current through transistor 61 to be increased and thus the prolongation pulse I v  to be increased. For the approximately 20 second period after switch 96 is released, the transistors 85, 86 attempt to return to their non-conductive condition, which they reach when capacitor 89 is fully charged. As 89 charges, an increasing voltage appears on the collector of transistor 86 which gradually decreases the charging current through transistor 61 and hence the length of the pulse I v , as shown in Fig.2. In a simplified embodiment of the timing device 30, Fig.3 (not shown), a single transistor is used, and in a modification of the timing device 30 shown in Fig.1, Fig.4 (not shown), the resistor 90 is omitted, which has the effect of enabling the value of capacitor 89 to be reduced and to make its duration dependent upon the speed and length of the basic pulses I n .
Patent GB-288395-A (GB)
Title: Improvements in folders for sewing machines
IPC: D05B35/08
Filed: 1927-01-31
Abstract: 288,395. Armstrong, J. J. V., (Union Special Machine Co.). Jan. 31, 1927. Folding-devices.-A folder is mounted on a support which may be attached to the work-plate of a machine at either side of the longitudinal axis of the folder. The folder 1 which is shaped to turn-in the sides of a strip to form a pleat is provided with a central slot 3 for facilitating insertion of a strip and has a reversible guide bracket 11 having a slot 12 and an inclined rib 13. The folder has an integral sleeve 14 which is clamped upon an arm 20 projecting from a plate 15 which may be adjustably secured on either side of the stitch line. In a modification, Fig. 4 the folder has projecting supporting brackets 29 which are secured to a plate 27 reversibly and adjustably secured to the work-plate. Specification 273,979, is referred to.
Patent GB-632072-A (GB)
Title: Improvements in or relating to machines adapted for applying reinforcements to articles
IPC: A43D43/06
Filed: 1948-01-30
Abstract: 632,072. Affixing adhesive tape. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Jan. 30, 1948, No. 2755. Addition to 573,379. Drawings to Specification. [Class 73] Improvements or modifications of the apparatus claimed in the parent Specification comprise the provision of two gauging-members for positioning vamps. One gauging-member is swingable laterally to allow tape to be applied to both sides of the throat of a Blucher-type vamp, the other being movable vertically into and out of a central work-engaging position for positioning Balmoral-type vamps. The second of these gauging-members, when in use, locks the other gauging-member in a central position.
Patent GB-726074-A (GB)
Title: Improvements in and relating to bolted joints for multi-part pistons for internal combustion engines
IPC: F02F3/00
Filed: 1953-01-30
Abstract: 726,074. Bolting. MAYBACH-MOTORENBAU, GES. Jan. 30, 1953 [Feb. 1, 1952], No. 2797/53. Class 89(1). [Also in Groups XXII and XXVI] Bolts; nuts-The crown 3 and skirt 1 of a multi-part piston are connected by a joint including a bolt 8 and a sleeve 12 which is secured at the crown end only of the skirt and provided with a female thread for the bolt 8 at its free end. The sleeve, which has a conical or spherical upper end, is secured by a tongue 13 and a nut 14 locked by a screw 16. In this way, the dynamic and thermal loads on the bolt are reduced.
Patent GB-881137-A (GB)
Title: Improvements in or relating to turning tools for wood turning
IPC: B27G15/00
Filed: 1960-01-26
Abstract: 881,137. Woodworking tools. BAHCO A.B. Jan. 26, 1960 [Feb., 7, 1959], No. 2837/60. Class 145. A wood turning tool has a flat bottom surface 1 by which it can be supported on the tool rest, a substantially central ridge 2 on the top surface and two cutting edges 5 formed by the intersection with the top surface of bevels 4 extending from the bottom surface on each side of the ridge. The top surfaces 3 extending from the ridge may be concave, as shown, or convex or flat.
Patent GB-640072-A (GB)
Title: Improvements relating to electric toasters
IPC: A47J37/08
Filed: 1948-01-30
Abstract: 640,072. Thermal switches. HOOVER, Ltd. Jan. 30, 1948, No. 2842. Convention date, Jan. 31, 1947. [Class 38(v)] [Also in Group VI] An electric toaster has a bimetallic strip 58 heated by an auxiliary heater 70 and arranged to operate the main heating switch 82 and to control the toasting period; and manually operated means 78 moves the heater 70 to and from the timing element 58 to vary the toasting period. The auxiliary heater 70 has a reflector 68 adjustable therewith mounted on the same bracket 67 pivoted at 65 to the frame. A manual control for the timing comprises a rod 72 with a knob 78 and a cam groove 71 in which engages an extension 90 of the bracket 67 of the auxiliary heater. The bimetallic strip 58 is fixed at its centre to a bracket 80 on a vertical post 14 of the toaster and is carried by a frame 53 pivoted at 54 near its upper end to the toaster. A spring 56 on the pivot 54 holds the frame 53 parallel to the bracket 67 when the bimetallic element is cool, and then also holds the lower end of the frame 53 against the end of a horizontal rod 46 mounted in the bottom of the toaster. The other end of the rod 46 bears on a lower lug of a latch 37 pivoted at 38 on a step 20 of the toaster platform. When the bread carrier 25 is depressed manually by a U-shaped lever 26 against a tension spring 33, a loop 40 of the carrier rides on a cam 41 of the latch 37 and is held down by engaging a hook 39 on the latch. A lug 83 on the carrier 25 then closes the main heater switch 82, which is in series with the auxiliary heater switch 84. When the bimetallic strip 58 is cool, the upper end 64 of the bracket 53 carrying it closes the switch 84 to energize the auxiliary heater 70. The strip 58 is thus heated by both main and auxiliary heaters and. on straightening, snaps over to the dotted line position; and the upper end 64 moves away from the switch 84, which opens and deenergizes the auxiliary heater 70, Although the main heater is still active, the bimetallic strip 58 cools and snaps back to its cool position. Its lower end then gives a hammer blow to the end of the rod 46 which moves sharply the lower end of the latch and releases the loop 40 of the bread carrier from the hook 39 of the latch, so that the carrier is released and raised by the tension spring 33. The main heater switch 82 is thus released to open automatically and ends a toasting period. A spring 50 on the rod 46 and a spring 43 on the pivot 38 of the latch return the rod and latch to their original positions, the spring 50 on the rod being insufficient to overcome the latch spring 43. The bimetallic strip 58 is supported at its ends between an abutment 59 at the lower end of the frame 53 and an abutment 60 near the frame pivot 54. The abutment 60 is the end of a U-shaped bimetallic strip 61 riveted to the frame 53. A screw 62 pressing on the U-strip 61 is adjusted in the factory. The strip 61 applies greater pressure to the strip 58 when the toaster is hot after repeated use so as to compensate for the heat of the toaster.
Patent GB-941638-A (GB)
Title: New pyrimidines and processes for preparing same
IPC: C07D239/50
Filed: 1961-12-20
Abstract: The invention comprises pyrimidines of the general formula: <FORM:0941638/C2/1> wherein one of the symbols R2, R4 and R6 represents a tertiary amino group -NR1R11 in which R1 and R11 each represents a lower alkyl radical or R1 and R11 together represent an alkylene radical, the second represents a halogen atom and the third a hydrazino group -NHNHR111 or -NH.NRIVRV in which R111 represents the acyl radical of a lower alkane carboxylic acid, a benzoic acid, phenyl lower alkane carboxylic or alkene-carboxylic acid, pyridylfuran- or thiophene-carboxylic acid R1v and RV each represents a hydrogen atom or a lower alkyl or cyclo-alkyl radical or together an alkylene radical; and their salts (including salts with ascorbic or para-aminosalicylic acids, methionine, tryptophan lysine or arginine).  The compounds are prepared by reacting an X-Y-Z-pyrimidine in which X represents a hydrazino or tertiary amino group, Y a halogen atom and Z a substituent replaceable by a tertiary amino or hydrazino group with a compound HX1 in which X1 has the other of the two meanings given for X and, if desired, substituting any substitutable hydrazino group in the resulting compound. Substituents replaceable by hydrazino or tertiary amino groups are preferably halogen atoms.  Hydrazino groups may be alkylated or acylated in a subsequent reaction in a manner known per se.  "Lower" indicates at most 8 carbon atoms in the hydrocarbon residues so qualified.  4-(N-Acetyl-hydrazino)-2, 6-dichloropyrimidine is prepared from acetylhydrazine and 2,4,6-trichloropyrimidine and 4-diethylamino-2, 6-dichloropyrimidine from diethylamine and 2,4,6-trichloropyrimidine.  Pharmaceutical compositions comprise the compounds of the invention in admixture with a pharmaceutical excipient suitable for enteral or parenteral administration.  The compositions may be formulated as tablets, dragees, emulsions or suspensions and may contain other therapeutically valuable substances.
Patent GB-651803-A (GB)
Title: Improvements in or relating to circuit-arrangements for generating a number of adjacent carrier-waves
IPC: H04J1/06
Filed: 1948-02-02
Abstract: 651,803. Valve generating circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Feb. 2,1948, No. 2991. Convention date, Feb. 5, 1947. [Class 40 (vi)] In a circuit for generating a number of adjacent carrier waves, wherein an oscillation having a central frequency fo is frequency - modulated by means of a modulating oscillation of frequency p, the generator of the oscillation of frequency fo is periodically quenched by short impulses with a recurrence frequency q, the frequencies p and q being equal or harmonically related, and of the same order of magnitude. A valve oscillator 1 has an anode circuit comprising inductances 3, 4, having magnetic cores, and resistances 5, 6, inductance 4 being coupled to inductance 7 in the grid circuit. When a saw-tooth current of frequency p is passed through the magnetizing coils 8, 9, the central frequency fo is frequencymodulated and produces, at the output transformer 15, a spectrum of frequencies spaced at intervals p on each side of the frequency fo and having fairly equal amplitudes. To overcome the effect of slow drift in the central frequency fo, short negative pulses of frequency q are applied to terminals 12 to quench valve 1. The quenching frequency q is equal to, or is a harmonic of the modulating frequency p, and is obtained from a stable oscillator. Also the central frequency fo is preferably a higher harmonic of the modulating frequency p. The saw-tooth modulating current in coils 8, 9, may be obtained from pulses applied at terminals 10, 11, due to the effect of rectifiers 13, 14. In this case the quenching pulses at terminals 12 may be used. Alternatively, reactance valves may be used.
Patent GB-466966-A (GB)
Title: Improvements in or relating to television transmitting apparatus
IPC: H04N3/04
Filed: 1936-01-31
Abstract: 466,966. Television. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. Jan. 31, 1936, Nos. 2992 and 28410. [Class 40 (iii)] Keystone distortion is removed by making the image A<1>, B<1> C<1>, D<1> on the scanning-disc geometrically dissimilar from the picture A B C D, and the holes in the disc are spaced at such unequal intervals that the lines on the image traced by consecutive holes correspond to equidistant lines on the picture. Distortion of brightness is corrected by differences in the area of the individual holes, or by material with varying absorption of light over the image, or by periodic introduction of absorbent matter in the beam of light, or by varying the intensity of the source of light, or by varying the gain of the photo-electric amplifier. Specification 466,780 is referred to.
Patent GB-877523-A (GB)
Title: Improvements in or relating to rim blank loading mechanism
IPC: B21D43/10
Filed: 1960-01-27
Abstract: 877,523. Feeding mechanisms for stamping presses. KELSEY-HAYES CO. Jan. 27, 1960 [March 30, 1959], No. 3013/60. Class 83 (4). Mechanism for delivering a wheel rim blank to an operative position in a rim expanding machine includes a clamp, means for moving said clamp to said operative position, said clamp having releasable jaws for gripping a rim blank and moving it as a unit therewith to said operative position, means carried by said clamp for ejecting a previously delivered blank from said operative position prior to the arrival of said clamp and blank, and means for releasing said jaws in the operative position of said clamp. The rim expanding machine comprises a fixed lower die 16 and an upper die 17 carried by a vertically reciprocable ram 20. The upper die carries three rim blank supporting fingers 21 which engage and lift up the expanded blank on upward movement of the ram. The rim blanks are fed to the machine by the rim loader 22 which comprises a frame 24 having an inclined guide 25 and an upright side plate 27 on one side of the guide, Fig. 2. A delivery shoot 29 having a pneumatically operated escapement mechanism 30 delivers blanks R one at a time to the guide. The rim blanks are advanced by a reciprocable clamp 32 slidably mounted on a track 36 above the guide 25 the clamp being attached to a carrier secured to the lower rim of an endless link chain 52 which is drivable in opposite directions by the ram of the expanding machine by a rack and pinion 71, 72 and sprocket gearing. The clamp 32 has a fixed jaw 80 with laterally spaced clamping fingers 81, Fig. 10, and a movable jaw 84 rotatably mounted on the fixed jaw. The jaw 84 is rotated by a pneumatic cylinder 95 through a rack and pinion gearing 94, 92 to grip a rim blank. A forwardly projecting ejector bar 105 is secured to one side of the clamp and has a downwardly turned portion provided with rim blank ejecting lugs 108. In operation the ram 20 reciprocates continuously and on each down stroke a rim blank is expanded between the dies. As the ram moves up, the rim blank is lifted off the lower die by the fingers 21 and then ejected by the ejector 105 on to a roll-off rack 109, Fig. 13, before the clamp deposits a new blank on the lower die. The operation may be manually or automatically controlled by an electrically operated pneumatic control system.
Patent GB-660050-A (GB)
Title: Improvements in or connected with horizontal reciprocating screens
IPC: B07B1/42
Filed: 1949-02-04
Abstract: 660,050. Reciprocating sieves. MOSELEY, W. and DRIGENKO, C. Feb. 24, 1950 [Feb. 4, 1949], No. 3112/49. Class 117 A horizontal reciprocating screen comprises three aligned trays 5, 6, 7 suspended on inclined links 9, the end trays 5, 7 being interconnected (as by a tie rod 8) to form a combined unit which is approximately the same weight as, and has a centre of gravity coincident with that of the centre tray 6, and is reciprocated 180 degrees out of phase with the centre tray. As shown the trays 5, 6, 7 are suspended, via the inclined links 9 and spring controlled tension rods 10 at right angles to the links 9, from a resiliently supported girder 1. From one end of the girder 1 are suspended four L-shaped plates 24 connected together by cross tubes 25, 26 and supporting a horizontal girder 27. The elbows of the plates 24 support bearings for a two-part flexibly coupled shaft 13, the two half shafts, which are driven by separate motors 31, 32 mounted on the girder 27, each being formed with a pair of oppositely facing eccentrics 14, 16 or 15, 17 which run in the big ends of connecting rods 18, 20 or 19, 21 respectively. The small ends of the inner pair of rods 18, 19 are pivotally connected to side frame extensions of the end tray 5, whilst the outer pair of connecting rods 20, 21 drive the centre tray 6. Instead of fixing screening cloths direct to the trays 5, 6, 7, the cloths may be secured to light sub frames 38, 39, 40 slung below the trays 5, 6, 7 and arranged to overlap at the ends in the direction of movement of the material along the screen.
Patent GB-1451760-A (GB)
Title: Oil compositions
IPC: C10M167/00
Filed: 1973-01-22
Abstract: 1451760 Oil compositions SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 14 Dec 1973 [22 Jan 1973] 3129/73 Heading C5F Oil compositions, for use as transmission fluid, shock absorber fluid or hydraulic fluid, comprise 0À001-0À1% w. of 4,5,6,7-tetrahydrobenzotriazole and 0À01-5% w. of an oilsoluble di-ester of chlorendic acid (i.e. 1,4,5,6,7,7- hexachlorobicyclo - (2,2,1) - 5 - heptene - 2,3- dicarboxylic acid). In the examples the compositions consist of a base oil which is either a vacuum distillate of a paraffinic crude oil or a blend of vacuum distillates of paraffinic and naphthenic crude oils, 4,5,6,7-tetrahydro-benzotriazole, dioctyl ester of chlorendic acid, 2,6-di-tbutyl-4-methyl phenol, a copolymer of C 12-18  alkylmethacrylates and N-vinyl pyrrolidone, basic calcium naphthasulphonate, dioctyl hydrogen phosphate, a C 12-15  alkylmethacrylate polymer and a silicone fluid.
Patent GB-1438451-A (GB)
Title: Electro=photographic copying machine and a drum therefor
IPC: G03G21/00
Filed: 1974-01-23
Abstract: 1438451 Rollers DAITOH KK 23 Jan 1974 [2 Feb 1973] 03177/74 Heading F2U [Also in Division G2] A rotary drum which is part of an electrophotographic copier consists of a rigid core 1, a resilient cushion layer 2 of elastic material and a flexible metallic outer layer 3. The layer 3 may be a metal sheet, a metal net or a vacuumdeposited metal layer.
Patent GB-1113083-A (GB)
Title: Improvements in colour television circuits and apparatus
IPC: H04N11/16
Filed: 1967-01-20
Abstract: 1,113,083. Colour television. COMPAGNIE FRANCAISE DE TELEVISION. 20 Jan., 1967 [21 Jan., 1966], No. 3227/67. Heading H4F. In a colour television system in which a colour sub-carrier is transmitted having alternately at line frequency the forms D (t) sin [wt + # (t)] and D (t) sin [wt - # (t)], where D = #D 1 <SP>2</SP>+ D 2 <SP>2</SP> and D 1  and D 2  are two colour signals i.e. PAL- type signals, or a system in which the subcarrier has alternatively at line frequency the forms D (t) sin [wt + # (t)] and D (t) sin wt, phase shifts which result from instability of the one line period delay line in a demodulator circuit e.g. caused by temperature variations of an ultrasonic delay line, and phase shifts which result from instability of the sub-carrier frequency, are reduced by feeding the transmitted sub-carrier to be demodulated to the input 1 of the circuit shown in Fig. 1 comprising a oneline period delay line 2, a two-line period delay line 4, an amplifier 5 and an adding device 6, the signals at outputs 3 and 7 being demodulated to obtain the colour signals D 1  and D 2  in the same manner as the received sub-carrier and a oneline period delayed sub-carrier would have been in a conventional demodulating circuit. The Specification includes a detailed mathematical analysis of the resulting phase shifts and their effective cancellations. Instead of using two delay lines a single delay device may be utilized having two outputs delivering two signals delayed respectively by one and two line periods, Figs. 2 and 3 (not shown). The signal-to-noise ratio of the demodulated signals is also improved. The demodulating circuit according to the present invention improves the vertical definition of the signal # in relation to conventional demodulating circuits. To further improve the vertical definition of the signal # the luminance signal with which the sub-carrier is associated is delayed by one line period either in the transmitter or in the receiver, the one line period delay line 2, Fig. 1, or the combined delay line, Fig. 2 (not shown), being utilized with associated filters.