baber/WOPTO huggingface dataset:
Patent GB-323558-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1928-10-09
Abstract: 323,558. Automatic Telephone Manufacturing Co., Ltd., Gillings, C., and McGavin, J. Oct. 9, 1928. Automatic exchange systems. - In order to prevent interference between automatic switches hunting over the same trunk almost simultaneously, the interrupter relay for the hunting movement is adapted on operation to disconnect entirely from the test wiper so that its locking earth is not momentarily connected to the next bank contact; in addition, the switching relay is adapted to operate rapidly by discharge from a highly inductive retard coil to reduce the unguarded period on the selected trunk. In the step-bystep selector described, during the operation of the vertical magnet, interrupter relay G operates from earth at 18 over operated contact 20 of dialling relay C and locks up to earth at 14. When relay C releases at the end of the digit, rotary magnet R operates to step the switch to the first contacts of the level, and releases G. If the first trunk is busy, G re-operates from earth on wiper 24, and locks up again, disconnecting its circuit from the wiper. When an idle trunk is found and G releases, switching relay H is rapidly operated by discharge from coil I and is held over G which does not operate. The calling loop is switched through, and relays A, B are released, but earth is maintained at 18 on the test lead and relay H until earth is fed back from the succeeding switch. All trunks busy. The wipers rotate to the eleventh contacts when springs 8 are operated, short-circuiting H and disconnecting G, and a congestion meter is operated over wiper 24. Busy tone and flash are connected up from conductor 28, relay B being held from earth at 14 to battery on 26 during the battery period.
Patent GB-1429929-A (GB)
Title: Device for measuring the rms value of an electrical signal
IPC: G01R19/03
Filed: 1972-06-21
Abstract: 1429929 Measuring rms values SOLARTRON ELECTRONIC GROUP Ltd 18 June 1973 [21 June 1972] 29006/72 Heading G1U A circuit for measuring the true r.m.s. value of an unknown waveform 10, Fig. 1 includes two thermal converters 22, 36, arranged in two loops: in the first loop both the unknown signal and a D.C. signal VD are applied to the heater of the first thermal converter 22 and its output voltage is compared with a reference voltage VR to adjust the signal VD so that the temperature of the heater is maintained substantially constant; and in the second loop both the signal VD and an A.C. signal from a source 38 are applied to the heater of the second thermal converter 36, and its output voltage minus the output voltage (which should be substantially constant equal to VR) of the first converter 22 is used to control the source 38 of the A.C. signal. Thus, providing the form of the A.C. signal is maintained constant - for example by using, as described, filters to produce a pure sine wave - by rectifying the A.C. signal, a D.C. output signal is obtained which represents the r.m.s value of the unknown input signal. A passive thermal converter using for example temperature sensitive resistors could be used, and the signal VD could be A.C. rather than D.C. in which case the A.C. signal from device 38 could be replaced by a D.C. signal.
Patent GB-274335-A (GB)
Title: Improvements in or connected with meat cutting or mincing machines
IPC: F16P1/02
Filed: 1926-11-17
Abstract: 274,335. Winstone, E. H., and Bardsley, D., (trading as Barwin Engineering Co.), (Alexanderwerk A. von der Nahmer Akt.-Ges.). Nov. 17, 1926. Guards.-A meatcutting or mincing machine of the kind having a guard plate covering the mouth of the feed hopper, is characterized by the guard plate being so disposed that only y a single opening is provided for the passage of the meat. As shown, the guard plate d is secured to the hopper b, e.g., by screws f, or is formed integrally therewith. A central opening h permits ramming with a wooden plunger or the like.
Patent GB-408971-A (GB)
Title: Improvements in or relating to the manufacture of abrasive articles
IPC: B24D7/16
Filed: 1932-10-18
Abstract: 408,971. Tools for grinding and polishing. CARBORUNDUM CO., Ltd., Trafford Park Road, Trafford Park, Manchester. Oct. 18, 1932, No. 29166. Convention date, Oct. 19, 1931. [Class 60.] In mounting bonded abrasive tools on a supporting member such as a steel spindle with the aid of cementitious material, a layer of protective material is interposed between the spindle and the tool to obviate any chemical, electrolytic, or other action tending to loosen the tool on its supporting member. As shown a bonded abrasive tool 1, which may be made by a vitrifying process, is mounted on a steel spindle 2 which has been coated electrolytically or otherwise with a film 4 of copper, cadmium, or other suitable protective material, a cement 3 being used for attachment purposes. The cement may contain calcined cupric oxide and phosphoric acid.
Patent GB-370364-A (GB)
Title: Improvements in or relating to brake devices for vehicles of all kinds
IPC: B60T7/10
Filed: 1930-09-30
Abstract: 370,364. Brakes. KIPPING, T., 21, Tilewartenbergstrasse, Berlin. Sept. 30, 1930, No. 29226. Convention date, Oct. 3, 1929. Void [Published under Sect. 91 of the Acts]. [Class 103 (i).] Hand and foot actuation. - In mechanism of the kind in which the brakes are applied by re - peated strokes of the hand or foot lever a friction coupling is disp o s e d in the transmission and is adapted to be disengaged to release the brakes. Friction discs 15 are alternately secured to a flange 10 and to a ratchet wheel 18 by bolts 13, 17, these parts being freely rotatable upon a fixed shaft 4. A lever 11 secured to the flange 10 is connected to the brakes and a lever 20 freely rotatable on the boss of the wheel 18 carries a pawl 21 engaging the wheel 18, which is also engaged by a pawl 24 on a fixed pivot. The discs 15 are pressed together by a spring-urged lever 7 on a nut 6 screwing on the shaft 4. The lever 20 is connected to the hand or foot lever and the brakes may thus be applied by oscillating these levers, and are held applied by the pawl 24. To release the brakes, the coupling 15 is slackened by pulling on the lever 7 against the spring 8. Compensating for wear.-The application of a friction coupling similar to that shown in Fig. 1, is shown also as a means for permitting the angular adjustment of two brake levers. In this construction, the bolts 17 for one set of discs are connected directly to the boss of the lever 20, the ratchet wheel 18 and pawls 21, 24 being dispensed with.
Patent GB-661644-A (GB)
Title: Improvements in or relating to stands for toy balloons
IPC: A63H27/10
Filed: 1949-11-15
Abstract: 661,644. Displaying. LATEX INDUSTRIES. Ltd., and REID, A. R. June 21, 1950 [Nov. 15, 1949 and 4702/50; Feb. 23, 1950], No. 29244/49. Class 3(ii) A stand for a toy balloon comprises a flat base 10 having means for securing the neck of a balloon thereto and one or more upstanding members 13 associated with the base and adapted to engage the surface of the balloon adjacent its neck so as to stabilize the balloon on the stand. The balloon is secured by passing its neck through an aperture 11 and into a slit 12 at the end of the stand from which it is prevented from slipping by the normal head 16 at the end of the neck. The aperture 11 is surrounded by a detachable circular collar 13 which engages the stand and the balloon to prevent its movement. In a modification two flaps are each cut from the base along three sides, they are hinged to the base along their fourth sides and have a central fold line each so that they can be folded to form projections which engage the balloon. Flanges on the flaps engage notches in the base to prevent the projections moving.
Patent GB-582359-A (GB)
Title: A new or improved control systems for motor vehicles
IPC: H02P9/00
Filed: 1943-08-19
Abstract: 582,359. Automatic control systems ; transmitting mechanical power. GLENNY, A. P.. Aug. 19, 1943, No. 29368/45. Divided out of 576,420, [Group XXIX]. [Class 38 (iv)] Speed.-In a control system for a motor vehicle propelled by an internal-combustion engine, the difference between the voltage of a generator driven by the engine and the output voltage of a potentiometer adjusted in accordance with the degree of throttle opening, serves to control the ratio of a variable-speed transmission mechanism of the vehicle so as to set the engine speed automatically in accordance with the degree of throttle opening. An internal-combustion engine 1 drives a D.C. generator 31 connected to a series motor 3 driving the road wheels 2 of a motor vehicle. The generator field 32 is energized from a battery 33a through a potentiometer 37 which is automatically adjusted by a reversible motor 35. The supply to motor 35 is the difference between the voltage of an auxiliary generator 34, driven by the engine, and the voltage supplied by a potentiometer 39 from battery 33a. Thus, potentiometer 37 automatically regulates the speed ratio of the electrical transmission system to maintain the engine speed constant at the value for which the voltage of generator 34 equals the voltage supplied by potentiometer 39. The setting of potentiometer 39 is. dependent on the setting of an accelerator pedal 23, controlling the engine throttle , so that the engine speed is maintained at a different value for each throttle setting. The Provisional Specification refers to arrangements in which : (a) the potentiometer operated by the accelerator varies the field of a constantspeed generator providing the voltage opposing that of the engine-driven auxiliary generator ; (b) the variable speed transmission is not continuously variable.
Patent GB-1383276-A (GB)
Title: Items of domestic electrical quipment
IPC: B65H75/44
Filed: 1973-06-20
Abstract: 1383276 Cable reels SIEMENS-ELECTROGERATE GmbH 20 June 1973 [7 July 1972] 29409/73 Heading B8M An item of domestic electrical equipment, e.g. a vacuum cleaner, comprises a supply cable 3 and a cable reel on which the cable is wound and unwound, there being rewinding drive means for the reel, e.g. spring drive 6, and an automatically operating braking device, which is not the cable itself, and which is operable, while the cable is being rewound, to provide a braking force on the reel and hence limit the speed of such rewinding. The reel 2 comprises a barrel between two flanges and is enclosed in a housing 1. The braking means comprises weights 4 mounted on one of the flanges and operative on rotation of the drum to bear, under centrifugal action, against the housing, the friction causing the reel to slow down.
Patent GB-747918-A (GB)
Title: Improvements relating to the scales of weighing machines
IPC: G01G23/20
Filed: 1953-10-26
Abstract: 747,918. Weighing-apparatus. GASCOIGNES (READING) Ltd.. and GASCOIGNE, G H. Oct. 26. 1954 [Oct. 26, 1953], No. 29506/53. Class 143 A fixed dial-movable pointer weighing machine has an auxiliary manually rotatable dial on which the pointer registers .a required proportion of the fixed dial reading, e.g. so as to indicate dead weight. The auxiliary dial 1 (Fig. 2) is marked with ranges of weight and associated percentage indices, which are revealed through windows 5, 13 (Fig. 1) of the fixed dial 2, so that over the range 180-240 of the fixed dial, the auxiliary dial can be set to give readings corresponding to the various percentages revealed in 13. The tip of the pointer indicates the fixed dial and the auxiliary dial readings. The window 5 may be sited at 5' so that the proportional weight is indicated by the tail of the pointer. Fastener 8 locks dial 1 in the required position. In a modification, dial 1 and window 5 are replaced by an arc-shaped scale 10 (Fig. 3), held opposite to the range 180- 240 by stop 11. It can be swung to a second position 10<SP>1</SP>, if the weight range originally covered is required for use,
Patent GB-1291296-A (GB)
Title: Improvements in or relating to jet pumps
Inventor: TICHY OLDRICH
IPC: F04F5/16
Filed: 1970-06-18
Abstract: 1291296 Draught inducing devices TEPLOTECHNA NARODNI PODNIK 18 June 1970 29514/70 Headings F4J and F4T A draught inducing device in a flue or duct 3, 4 comprises a burner 8 with fuel inlet 7, air inlet 6 and combustion chamber 5 having a restricted delivery nozzle 1 opening into a Venturi throat 2. The device is said to be useful in tunnel and muffle furnaces.
Patent GB-419686-A (GB)
Title: Improvements in swimming suits
IPC: A41D7/00
Filed: 1933-10-25
Abstract: 419,686. Swimming - costumes. BUCK & SONS, Ltd., E. R., and LUDGATE, W., 2, London Road, Manchester. Oct. 25, 1933, No. 29539. [Class 77.] A swimming-suit is made from a single length of material which is cut to the desired pattern with the crotch at the middle of the material, as shown, and then folded end to end to form the back and front, the sides and shoulder straps being then joined together to form the complete garment.
Patent GB-190602-A (GB)
Title: Improvements in expansible bangles or bracelets
IPC: A44C5/12
Filed: 1921-11-09
Abstract: 190,602. Smith, A. J. Nov. 9, 1921. Bracelets.-A bracelet comprises two or more tubular segments a, c containing one or more bands d of spring steel which connect the segments together and hold them in closed position, the band being provided with end and inner catches d<3> co-operating with stops x on the segments to prevent their complete separation. When the bracelet is expanded the band d becomes bowed as at d between the segments and this bowing holds the segments apart until the band is straightened by forcing the segments together.
Patent GB-909732-A (GB)
Title: Pipe coupling
IPC: F16L19/10
Filed: 1960-08-30
Abstract: 909,732. Tube couplings. WURZBERGER, P. D. Aug. 30, 1960, No. 29833/60. Class 99(1). [Also in Group XXII] A tube T, Fig. 1, is coupled to a stationary body B by means of a coupling element E which is arranged to be deformed by progressive compression between the body and a nut N as the latter is screwed on the body so that one or more cutting teeth 20 provided on the forward part of the element E penetrate the wall of the tube so as to plough a longitudinal groove therein and at the same time cut an annular groove and turn up the metal of the tube as at 32, Fig. 2, to provide a rigid, fluidtight connection. The element E comprises a thickened annular portion 10 having a conical shoulder 7 and an elongated portion 11 having near its end the teeth 20 and counterbored as at 14 to provide a rounded guiding lip 15. Alternatively, the lip 15 is eliminated and the portion 11 terminates in a rounded corner which is proximate and overlie the teeth. The teeth, Figs. 7 and 8, each have a radial edge 21, inclined rearwardly diverging side faces 23 lying normal to the bore 12 of the element E, triangular inner faces 24 co-extensive with the bore 12 and intersecting the faces 23 along sharp, approximately helical, inner edges 25, the edges 21, 25 and the faces 23, 24 all intersecting in cutting points 26. The teeth have V-shaped profiles with pointed crests and roots. Other tooth profiles are described. In another embodiment, Fig. 12, the teeth 13 are located at the step K between the portions O, O<SP>1</SP> of a stepped bore. In a further embodiment, Fig. 13, the coupling element C<SP>1</SP> is provided with a tapered bore 60 which intersects with a rearwardly raked shoulder 62 in a serrated cutting edge 61. In a still further embodiment, Fig. 17, the coupling element, in addition to the teeth 13<SP>1</SP>, is provided with an annular cutting edge 70. The teeth are formed on the coupling element by supporting the element in a punch press and engaging the end of the element with a longitudinally moving die having the male form of the serrations and co-axial with the element; alternatively, the die is rotatably mounted on a shaft and is eccentric to the axis of the element.
Patent GB-1287743-A (GB)
Title: Tent assemblies
Inventor: BAKER KENNETH
IPC: B60P3/38
Filed: 1968-06-24
Abstract: 1287743 Convertible vehicles K BAKER 23 Sept 1969 [24 June 1968] 29910/68 Heading B7B A rigid tray 11 supported over a vehicle roof accommodates a mattress and forms the base of a fabric extension maintained in the erected position by hoop members 18-22 which are pivotally mounted along one edge of the tray. The member 22 preferably has telescopic sides and the canvas cover for the collapsed unit forms a groundsheet tray.
Patent GB-745954-A (GB)
Title: Improved process for the polymerisation of vinyl and vinylidene compounds
IPC: C08F2/22
Filed: 1953-10-29
Abstract: Polymer emulsions are made by preparing an aqueous solution containing 0.01 to 0.1 part by weight of an alkali metal salt of an alkyl benzene sulphonate having from 10 to 20 carbon atoms in the alkyl group and from 0.05 to 1.0 part by weight of an alkali metal salt of a naphthalene sulphonic acid-formaldehyde condensation product for each 100-150 parts by weight of water, separately preparing a solution or dispersion in one or more monomeric vinyl or vinylidene compounds of 0.25 to 0.5 parts by weight of a substituted hydroperoxide of the formula: <FORM:0745954/IV(a)/1> in which A is a benzene or cyclohexane ring and R is a hydrogen atom or an alkyl group having one to five carbon atoms, and 0.5 to 1.0 parts by weight of an alkyl mercaptan having from 10 to 20 carbon atoms in the molecule for each 100 parts of monomer, mixing the two solutions with agitation, then gradually adding to the resulting emulsion an aqueous solution of an alkali metal formaldehyde sulphoxylate in an amount of one-fifth by weight of the hydroperoxide.  The water employed in forming the emulsion must not contain more than ten parts per million by weight of transitional elements.  In a modification the alkali metal formaldehyde sulphoxylate may be dissolved in the same aqueous solution as the sulphonate and formaldehyde condensation product, and a solution or dispersion of the hydroperoxide in the monomeric mixture gradually added thereto.  If desired, one or more other emulsifying agents may be added towards the end of the polymerization.  The alkali metal sulphonate may be sodium salt of the sulphonates of decyl benzene, hexadecyl benzene, octadecyl benzene, nonadecyl benzene, or docosanyl benzene.  The other emulsifier may be a mixture of a nonionic polyether and a sodium alkyl aryl sulphonate.  Specified monomers are styrene, butadiene and mixtures, vinyl chloride, acrylic nitriles, and acrylic esters. Hydroperoxides mentioned are cumene, di-isopropyl, para-tert. butyl isopropyl benzene, and para-menthane.  The aqueous polymer emulsion admixed with plasticizers and pigments, may be used as a paint.
Patent GB-414339-A (GB)
Title: Improvements in or relating to household refrigerators
IPC: F25B17/06
Filed: 1932-10-26
Abstract: 414,339. Refrigerating. ROUGE, G., 1, Rue Laponneraye, Tours, Indre-et-Loire, France. Oct. 20, 1932, No. 29992. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 27, 1932]. [Class 29.] Absorption machines and systems.-The water-cooled condenser 6 and the evaporator 5 of a rotatable reversing machine are connected by a pipe 7 extending to the bottom of the evaporator in the generating position shown. The machine is mounted upon an axle formed by the pipe 7 and the outlet pipe 11 of the cooling water coil in the generator-absorber 4. The cooling water is supplied through a pipe 23 to a distributer 24 having an outlet 18 to the condenser, which consists of a duct containing a finned-tube 15, Fig. 2, and having a cooling water jacket 14, and another outlet 11<a> to the cooling coil in the generator-absorber. As shown, the outlet 11<a> is closed by a ball valve 25. In the cooling or inverted position, the ball valve closes the outlet 18 to the condenser. The supply of current to the electric heater of the generator-absorber is controlled by a counterweighted tumbler switch 26.
Patent GB-1020298-A (GB)
Title: Process for rendering organic high molecular weight polymers resistant to electrostatic charge
IPC: C08K5/20
Filed: 1963-07-29
Abstract: Organic polymers are rendered resistant to electrostatic charge by incorporation of one or more substituted oxalic acid amides of formula <FORM:1020298/C3/1> where X is <FORM:1020298/C3/2> or-OR4, R is a C12- 24 alkyl, R1, R2 and R3 are H or a C1- 24 alkyl and R4 is a C1- 24 alkyl, the groups R, R1, R2, R3 and R4 may be substituted by halogens, amino, substituted amino, hydroxy, alkoxy or carboxyalkyl groups. The polymer may be polystyrene, a copolymer of styrene and butadiene, acrylonitrile and/or vinyl carbazole, polyvinyl chloride, a polyolefine, e.g. polyethylene, polypropylene, polybutene - (1), polyoctadecene - (1), poly - (4 - phenyl butene-1) or polyvinyl cyclohexene, polyacrylonitrile, poly-(acrylic or methacrylic) acid ester, polyoxymethylene, a polyterephthalate, a polycarbonate, a polyamide, a polyurethane, an epoxide resin hardened with a basic reagent, or a polyester, e.g. derived by condensing ethylene glycol, maleic anhydride and phthalic acid an then polymerizing with styrene in the presence of methyl ethyl ketone peroxide, cobalt naphthenate and the oxalic amide.  The composition may contain 0.1-7% of the oxalic acid amide which may be oxalic acid N-methyl N-stearyl amide (amide or ethyl ester), oxalic acid N,N-disteryl amide butyl ester, oxalic acid N-lauryl amide methyl ester, oxalic acid N-stearyl amide amide or oxalic acid di-(N-stearyl amide).  The compositions may be granulated and mouled into plates.
Patent GB-716050-A (GB)
Title: Improvements relating to electric switch contact structures
Inventor: FENTON WILLIAM
IPC: H01H1/14
Filed: 1951-12-24
Abstract: 716,050. Switch contacts. REYROLLE & CO., Ltd.. A. Dec. 17, 1952 [Dec. 24, 1951], No. 30106/51. Class 38(5)  A contact structure 10 comprises two rows of contact levers 18 pivoted respectively in parallel V grooves 16 in a conducting support 12. The levers 18 are of obtuse-angled triangle shape and have semi-circular bosses 19 engaging the grooves 16, the levers of one row being interleaved with those of the other row so that their inner ends cross scissorwise. The outer ends of adjacent levers of each row are arranged in pairs, each pair having a square washer 21 extending thereover and a pin 23 extending therebetween and through an aperture in the washer and an aperture provided in a laminated insulating ring 14 surrounding the support 12. A head 25 on the pin 23 engages the washer surface. and a compression spring 22 is interposed between a further pin head 24 and the ring 14. Thus the inner ends of the levers 18 are urged towards a co-operating butt contact 11 and there is a wiping action on contact engagement and disengagement. The levers lie against one another and between a pair of stops 20 provided at the row ends whereby they are prevented from tilting sideways.
Patent GB-533695-A (GB)
Title: Improvements in or relating to electric furnaces of the induction type
IPC: H05B6/20
Filed: 1939-11-15
Abstract: 533,695. Induction furnaces. FUSTIER. P., and BOCUZE & CIE, SOC. ANON, J. Nov. 15, 1939, No. 30139. Convention date, May 1. [Class 39 (iii)] An induction furnace for use with 3-phase supply, comprises three vertical conduits b of small section in refractory material h, connected by horizontal conduits c and by molten material in the space d to a central vertical conduit e of larger section. Three-phase windings are placed in the holes f in the laminations a, and, due to the rotating field, a heavy current is inducted in the material in the conduits b which reaches a higher temperature than in the conduit e in which no current flows. The resulting difference in density gives rise to convection currents as shown.