baber/WOPTO huggingface dataset:
Patent GB-342373-A (GB)
Title: Manufacture of substitution products of aromatic hydrocarbons
IPC: C07C255/56
Filed: 1929-11-05
Abstract: Cyanoacetyl derivatives of aromatic hydrocarbons are obtained by treating the hydrocarbon with cyanoacetyl chloride in the presence of an acid condensing agent and a diluent, preferably at a temperature not exceeding 60 DEG  C.  Examples describe the treatment of the following hydrocarbons with cyanoacetyl chloride as such or as prepared in situ from cyanoacetic acid and phosphorus pentachloride: acenaphthene, toluene and a -methylnaphthalene using carbon bisulphide as a diluent and acenaphthene using acetylene tetrachloride as a diluent.
Patent GB-377876-A (GB)
Title: Improvements in or relating to the control by wireless of unmanned signalling stations
IPC: H04B1/034
Filed: 1931-12-04
Abstract: 377,876. Wireless control of distant signalling apparatus. PINTSCH AKT.- GES., J., 71, Andreasstrasse, Berlin. Dec. 4, 1931, No. 33674. Addition to 343,924. [Class 40 (v).] The control of an unmanned wireless beacon or transmitter for aerial or marine navigation, of the type described in the parent Specification, is made secret by varying the wavelength of the supervisory signals from time to time. The minute-hand 10 of a clock 9 at the beacon station energizes the filament circuit of a valve-relay 5, 5a controlling the local transmitter or signal for a short interval, twice an hour, through contacts 11, 12. In addition, the hour-hand 18 of the clock alters the tuning of the aerial circuit at hourly intervals through the contacts 13a .. 17a and associated tappings, so that the beacon can only be set into operation by the receipt of a supervisory signal of predetermined wavelength.
Patent GB-506925-A (GB)
Title: Improvements in sole and heel protectors for boots and other footwear
IPC: A43C15/06
Filed: 1937-12-06
Abstract: 506,925. Protectors for boots. SWART, M. E. W. Dec. 6, 1937, No. 33725. [Class 17 (iii)] Non-slip protectors 1, 23 respectively, for the soles and heels of workmen's boots comprises a number of plates a, b, 23, of skeleton structure covering the tread surfaces of the sole and heel and through the openings 2, 3, 4, 4a, 31, 32, 33, in which the tread face of the boot is exposed, each plate having a number of non-slip wearing projections 8, 10, 11, 12, 13, 15, 17, 19, 26, 27, 29, 30, 35, 36, 37, so shaped that the tread surface is curved to the tread of the boot in the longitudinal direction but in the transverse direction at the sole, as shown in cross-section in Fig. 4, it is flat and level. The plates I, 23 may have upstanding flanges around the sides to protect the edges of the sole and heel, and extending portions which mav be turned in over the. projecting top face of the sole or welt to assist in retaining the plates in position. The main means of attachment comprises screws inserted in countersunk holes 21, 38 in the plates. The heel plate 23 may have a shallow transverse flange across the front edge let into the breast face of the heel to prevent the heel plate from being knocked off by a blow at the front.
Patent GB-1456329-A (GB)
Title: Preparation of halogenated cyclohexene-cyclopentadiene adducts and their use as fire retardants
IPC: C08L7/00
Filed: 1974-07-31
Abstract: 1456329 Fire-retardant polymer compositions HOOKER CHEMICALS & PLASTICS CORP 31 July 1974 [15 Aug 1973] 33846/74 Headings C3B C3P and C3R [Also in Division C2] A fire-retardant polymer composition comprises a polymer and an effective amount of a compound of the formula wherein each X independently represents F, Cl or Br, each Y independently represents F, Cl, Br or a (C 1  to C 10 ) alkyl, alkoxy, haloalkyl or haloalkoxy group wherein halois F, Cl or Br, a is 1 or 2 and b is 0 or 1. Specified polymers are styrene butadiene rubber, ABS resin graft polymers of polybutadiene, styrene and acrylonitrile, polystyrene, polypropylene, nylon, polyethylene terephthalate and epoxy resins. Other additives which may be present include As, Sb and Bi compounds.
Patent GB-932509-A (GB)
Title: Improvements in or relating to voltage modulator circuits
IPC: G06G7/14
Filed: 1961-09-21
Abstract: 932,509. Voltage modulator circuits. BENDIX CORPORATION. Sept. 21, 1961 [Sept. 27, 1960], No. 33908/61. Class 37. [Also in Group XL (c)] Relates to a linear alternating voltage modulator circuit which comprises an input winding 21 for receiving a carrier alternating voltage signal E i , an output winding 22 for transmitting a modulated carrier voltage signal Eo, at least two intermediate control windings 23, 24, each connected to a different transfer function generator for receiving a direct control current, either I f1  or I f2 , varying in relation with an independent variable, and an arrangement inside the modulator circuit between the intermediate control windings so as to obtain at the output a signal proportional to the product of the incoming carrier alternating voltage and the algebraic sum or the product of the direct control currents. The two control windings may be part of the same magnetic modulator, as shown in Fig. 4, in which case the modulation of the carrier is controlled by the sum or difference of the two input currents, so that the alternating output signal is given by Eo = K(I f1 ŒI f2 ) Ei. Other arrangements are described wherein the overall modulating circuit contains two magnetic modulators arranged in cascade to allow functions of the product If 1  . If 2  to be obtained (Figs. 6, 7, not shown), and wherein centretapped control windings are employed (Fig. 7, not shown). An example of a function generator suitable for providing the transfer characteristic current If is given (Fig. 2), wherein an input voltage Edc produces an output current If as shown on the curve of Fig. 3, the break points V 1 , V 2 , V 3  being determined by the Zener characteristics of diodes D 31 , D 32 , D 33  respectively.
Patent GB-525544-A (GB)
Title: Improvements in or relating to pumping apparatus
IPC: F04B9/14
Filed: 1938-11-22
Abstract: 525,544. Rotary pumps. ADAMS, A. J. Nov. 22, 1938, No. 33937. [Class 110 (ii)] An oscillating vane type pump is formed with a tank, 18 Fig. 3, on the inlet side and a delivery tank 35. Water is retained in the tank 18 up to the level of the open upper end of the pipe 19 and after use air can pass from the delivery tank, by a gauze-covered suctionbreaking pipe 36, to the inlet tank thereby preventing the pump from being syphoned empty of water. The water held in the inlet tank is sufficient to fill the pump body and cover the pump valves. Thereafter, air in the suction pipe is pumped through the water in the pump until the pump is fully primed. In a modification, shown in Fig. 1, priming water is held in a tank 2 and in the right-hand limb of a suction pipe 8. A suction-breaking pipe 13 in a delivery tank 15 communicates with the highest point of the suction pipe.
Patent GB-1037888-A (GB)
Title: Improvements in or relating to electric lighters for smokers
IPC: F23Q7/00
Filed: 1964-08-20
Abstract: 1,037,888. Electric cigar lighters. CASCO PRODUCTS CORPORATION. Aug. 20, 1964 [Aug. 23, 1963], No. 34003/64. Heading F4F. An electric smokers' lighter comprises a holder 11 supporting an igniter 10 which is slidable against spring action into retaining engagement with bimetallic fingers 21 electrically connected to a battery (not shown) via a thermal circuit breaker 24, which is manually resettable by the removal of the igniter 10 from the holder 11, and the insertion of a pointed wooden stick through the open end of the holder so as to force a spring-loaded plunger 47 of the breaker 24 inwards into retention by a bimetallic arm 43. The bimetallic fingers 21 control the normal opening of the igniter circuit, and the breaker 24 opens the circuit if the contacts fail to release the igniter, of if the igniter is held in by hand, or in the event of a short circuit. In the set position of the breaker 24, a disc 32 on the plunger 47 is retained by the bimetallic arm 43 which is electrically connected to a stud 39 connected to a live battery lead (not shown), and is engaged by an arm 33 electrically connected via an eyelet 28 to the fingers 21. The igniter 10 comprises a spiral resistance coil 19 mounted in a cup 20, and connected at one end to the cup and at the other end to earth via a post 23 on the igniter 10. The holder 11 is clamped in a hole in a vehicle instrument panel 15 by a sleeve 16 having a threaded neck 17 which engages a threaded collar 18 on the holder 11. The stud 39, the arms 43 and 33, the eyelet 28 and the fingers 21 are insulated from the holder 11 and the panel 15. The inward movement of the cup 20 of the igniter is limited by a stop 54.
Patent GB-393627-A (GB)
Title: Improvements in or relating to fluid controlling valves
IPC: F24H9/20
Filed: 1931-12-08
Abstract: 393,627. Valve accessories. G A S LIGHT & COKE CO. and MASTERMAN, C. A., 84, Horseferry Road, London. Dec. 8, 1931, No. 34066. [Class 135.] A valve for controlling the flow of gas to a geyser 1 has a pilot burner 4 secured in a boss on the valve casing 2 and the valve plug 5 has a gapped segmental guard disc 6 fitted on one end and so arranged that the pilot burner 4 can only be lit when the gap 7 is aligned with the hole 8 in the geyser casing to give access to the said pilot burner ; the plug 5 in other positions of the gap closes the main gas passage or allows free flow to the main gas valve 10 of the geyser. When the gap 7 and hole 8 are aligned gas passes to the pilot burner by way of a byepass channel extending half-way round the plug and joining the main passage so that when the through passage is fully. open, as when the valve is turned to the " on " position, gas continues to pass to the pilot burner. The disc 6 has a rim 17 which is broken at the gapped part, the short section of this rim coinciding with the hole 8 when both pilot and main gas passages are closed. An additional nipple 16 on the casing 2 enables the valve to be used as a right or left-hand fitment. The passage in the burner 4 is adjusted by a needle screw 19. The disc 6 has an integrally formed handle 11 and is preferably secured, by a set screw 12.
Patent GB-971328-A (GB)
Title: Improvements in or relating to squirrel-cage type rotors
IPC: H02K15/00
Filed: 1963-08-29
Abstract: 971,328. Making dynamo-electric machines. N. S. KARMINSKY, A. P. RYBAKOV, and B. A. NAZAROV. Aug. 29, 1963, No. 34185/63. Heading B3A. A method of making a squirrel-cage type wound rotor comprises placing a laminated rotor core having inserted copper core rods in a die and compressing the assembly, e.g., under a pressure of 2 to 4 tons/cm.<SP>2</SP>, between two layers of metal powder, e.g., copper, and applying heat, e.g., at a temperature of 900/980‹ C. for two hours, thereto to effect sintering of the powder with the rods. The assembly is subsequently coined under a pressure of 4.8 tons/ cm.<SP>2</SP>, the rotor secured to a mandrel and resintered at a temperature of 900/980‹ C. for 1 to 2 hours. The sintering is carried out in hydrogen inside a continuous-type furnace or in a vacuum. The rotor is finally reamed, fitted with a shaft and cylindrically ground.
Patent GB-1478904-A (GB)
Title: Ceramic insulating bricks
IPC: C04B35/66
Filed: 1974-08-02
Abstract: 1478904 Refractory bricks OTAVI MINENUND EISENBARN-GES 2 Aug 1974 [2 Aug 1973] 34258/74 Headings ClJ and ClH A fired refractory insulating brick comprises a refractory binding framework and expanded perlite, the brick having substantially closed pores, each such pore being externally defined by a glazed outer skin formed during firing by the melting of a grain of expanded perlite. Binding agents include Portland cement, aluminous cement, phosphates, silicates (e.g. water glass), lime, and clay. The bricks may be made by shaping and firing. Shrinkage during firing may be compensated for by addition of kyanite to the raw materials. Pore carriers, e.g. chamotte, kieselguhr, vermiculite and asbestos may be included in the raw materials in an amount up to 80 wt. per cent. The preparation of bricks from expanded perlite, chamottes A and B, aluminous cement and water (Example 1), from expanded perlite, chamotte A, aluminous cement, kyanite and water (Example 2), from expanded perlite, chamotte A, ohamotte B and aluminium phosphate (Example 3) and from expanded perlite, aluminous cement, and water (Example 4) are described.
Patent GB-342649-A (GB)
Abstract: 342,649. Wire. DICKER, S. G. S., 20, Holborn, London.-(Naamlooze Vennootschap Philips' Gloeilampenfabrieken; 6, Emmasingel, Eindhoven, Holland.) Sept. 30, 1929, No. 29564. [Class 83 (ii).] Thermo-electric couples for electric measurement purposes consist of interconnected wires having a diameter of less than 10 u. The wires are made by subjecting thicker wires to partial disintegration by glow discharge in argon or other gas. Fig. 1 shows one method of making the couples, each consisting for example of an iron wire 7 looped or joined to a constantan wire 8 and enclosed in a glass bulb 1. The bulb is filled with argon at a pressure of 8 mm. and a source 11 of high-tension alternating current is connected to the elements of the couples as shown. The current is adjusted by a rheostat 12 to produce a glow discharge between the wires of the couples. When the wires have been sufficiently reduced the tube 2 between the bulbs is sealed off and each bulb then exhausted. The glow discharge may be produced between the wires of the couples and another electrode mounted in the bulb or in a chamber communicating therewith. Direct current may also be used, the wires to be disintegrated being connected to the negative pole. In order to ensure that the wires have been reduced as much as possible, for example, to a diameter of less than 5 u., a third wire 18 as shown in Fig. 2 may be mounted in the bulb and the disintegrating process continued until one of the wires breaks. The remaining two wires are then used as the elements of the couple. The supporting rods for the wires may be flexible so that the wires are kept taut. Specification 343,452 is referred to.
Patent GB-411161-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04C14/22
Filed: 1932-12-03
Abstract: 411,161. Rotary pumps. MOTLEY, L., Nuneham, Staines, Middlesex. Dec. 3, 1932, No. 34283. [Class 110 (ii).] A pump of the outwardly-sliding vane or roller type has its capacity varied by the changing of the eccentricity of the casing and the rotor. A rotor d carries vanes e in a bore a<1> of a casing a which is pivoted about a pin h held by a body b. A leaf spring h<1> screwed at one end to the pin h, presses on a ball h<2> and so exerts axial pressure against a hardened plate d<6> which presses the rotor d against packing rings a<4>. A cam k is pressed on to an outer race k<3> of a bearing k<4>, and is turned by means of an arm k<2> mounted on a pin k<1> to alter the eccentricity between the casing a and the rotor d. A tension spring k<6> is inserted between the arm k<2> and a pin k<7> on the casing a. A compression spring may be used in a further arrangement. A chain k<5> may be controlled by a thermostat on a boiler supplied with oil fuel by the pump. Suction and discharge ports 8<3> and s<4> are provided in the body b. In a modification the delivery conduit passes through the centre of the shaft c. A further arrangement, Figs. 8, 10, comprises a casing a sliding between two guides b<18>, b<19>. The casing has two rods a<10>, a<11>, under spring pressure. The eccentric k is controlled as in the former case by an arm k<2>. The end wall a' of the pumping chamber is pressed axially by a pivoted beam b<10> under action of a spring h<1>. The inlet s<1> of the pump communicates through a filter s<6> with the space under a cover m and so to a pump inlet 8<3> in the member a'. The delivery port 8<2> leads to a spring-loaded non-return valve in a pipe s<5>. In a modification the vanes e are replaced by rollers.
Patent GB-815061-A (GB)
Title: Improvements relating to wireless aerials
IPC: H01Q5/15
Filed: 1954-11-26
Abstract: 815,061. Aerials. SHARDLOW ELECTRIC WIRES Ltd., and JONES, P. Feb. 24, 1956 [Nov. 26, 1954], No. 34420/54.. Class 40 (7). Resonant couplings are used in an aerial system effective at two different frequencies (or over two different frequency bands) to cause a dipole or folded dipole to be effective at a lower frequency and to couple a part of it to form an aerial for a higher frequency. In a first embodiment a folded dipole D, D1 associated with a suitable feeder is resonant for operation at one frequency and electrically resonant couplings bridging the elements are provided which have negligible effect at that frequency but which act as acceptor circuits at another frequency to bridge the elements and form a folded dipole at the higher frequency. The resonant coupling consists of an inductor I in series with one or two capacitors (C, C1). The, or each, capacitor may be formed as a single conductive plate, the folded dipole rod or tube forming the other condenser element and a dielectric separator being provided. The whole coupling may be formed in a moulded housing with either single capacitor plates for capacitive coupling to the dipole or with conductive connections and internal capacitors. The resonant circuit inside the housing may be formed by either wired or printed circuit techniques. It is stated that two or more pairs of couplings could be used to render the aerial system effective at three or more frequencies. The arrangement shown in Fig. 1 may be associated with a reflector for the lower frequency and directors for the higher frequency or may be a unit in an array of like elements. In another embodiment a coupling of the kind described is used in conjunction with each section of the aerial described in Specification 734,689 to cause this aerial to be effective at two different frequencies. In a further embodiment a simple dipole A is made resonant at one frequency and a parallel element is coupled to corresponding points on it by resonant couplings I, C, to form a folded dipole effective at a higher frequency.
Patent GB-819621-A (GB)
Title: Improvements in or relating to screeds
IPC: E01C19/40
Filed: 1957-11-05
Abstract: 819,621. Screeding machines. BYGGMEKANISERING A. B. Nov. 5, 1957 [Nov. 10, 1956], No. 34421/57. Class 107 The screed of a machine for laying a smooth surface, for example of concrete, is vibrated longitudinally but not vertically by rotating eccentric masses, so arranged in two groups that the forces produced by each of them act in the same direction longitudinally but in opposition in a vertical direction at right angles to the length of the screed. As shown, the tool 1 is supported by a flexible mounting 11 on the carriage 5 fitted with handles 4. :and the longitudinal vibrations are produced by rotating eccentrically placed masses 19 and 20 fixed to gear wheels 14 by shafts 13 carried by a mounting 2 attached to the tool 1, the centre shaft 13 and gear 14 being driven by electric motor 3 rotating outer gears 14 which are freely mounted. The sum of the masses of eccentrics 20 equals that of eccentric 19 so that in the position shown by full lines in Fig. 3, the forces produced by rotation of the masses are equal and opposite producing no resultant force whilst in the position shown in broken lines a resultant force to the left is produced; a corresponding force to the right is produced 180 degrees later in the rotation of shafts 13. If desired, the screed can be arranged to operate with longitudinal and vertical vibrations and by tilting the shafts 13 forwards a resultant force can be obtained which will cause the screed to move forwards over the surface to be treated.
Patent GB-958811-A (GB)
Title: Improvements in or relating to operating member arrangements for electrical switches
IPC: H02B1/044
Filed: 1961-09-26
Abstract: 958,811. Switch bases; key-operated switches; indicators for switches. K. MAECKER. Sept. 26, 1961 [Oct. 22, I960], No. 34469/61. Heading H2B. An operating member such as push-button key 1 has a housing 2 by which it is fixed to a control board 3, and the housing has a collar 10 coaxial with the mean longitudinal axis of the key 1, there being a circumferential groove 12 in the cylindrical inner wall 11 of the collar to accept a spring ring 13 which has inwardly directed tags 14 to which a switch member 9 is fastened. Alternatively, the collar may have a circumferential groove in its cylindrical outer wall to accept the sprung ring, which then has outwardly directed tags to which the switch member is fastened. Tags 14 have threaded holes 15 to receive securing screws 16 for the switch member 9. Ring 13 is rotatable in groove 12 such that key 1 may be positioned as required when mounting it on board 3 befor e a nut 7 is screwed up against a spring washer 8 to secure the housing 2 tightly in place. Further tags 20 on ring 13 make it possible to fasten a further switch member on to the push-button key housing. An inscription is engraved around the edge of the push-button key and a symbol is provided on the key (Fig. 2, not shown). Illuminated keys and signal lamps are referred to.
Patent GB-521921-A (GB)
Title: Improvements in posting and like sheet or card holding trays
IPC: B42F17/02
Filed: 1938-11-28
Abstract: 521,921. Filing papers. COPELAND-CHATTERSON, CO., Ltd., and MANN, A. Nov. 28, 1938, No. 34611. [Class 146 (i)]CO., Ltd., and MANN, A. A sheet or card tray comprises a base 1, Fig. 4, with sides 2 having out-turned margins 12 to form a cavity 13 receiving the ends of a shaft 20 mounted on the follower 17. and manually operated through a limited angle, the shaft ends being held in adjusted position by means of a plurality of recesses. As shown the ends 22 of the shaft 20 are rotated to engage a bar,14 mounted in the cavity 13 so as to force the shaft into one of the recesses 16 formed at the top of a slot 15 in the side 2. The base carries inverted channels 9 which may be serrated on top to receive the sheets, and the channels form a trough for a rod 5 having a screwed end 7 threaded into a front member 6 and having a slotted head 8. In a modification, Fig. 5, the front bearer 23 is pivoted to a riser 24 and its shaft 25 carries at its ends plates 26 housed within the cavity 13 and recessed to engage a pin 28. The rear follower comprises a spring- pressed jaw 36 engaging the serrated channels and pivoted to a member 34 which is retained within the central trough, the member 34 and jaw 36 having handles 33, 37 for releasing the grip on the base. The end of the tray may have a cross-bar 39.
Patent GB-619243-A (GB)
Title: Improvements in or relating to electric fluid blast circuit breakers
IPC: H01H1/38
Filed: 1946-11-22
Abstract: 619,243. Fluid blast switches. ETABLISSEMENTS MERLIN & GERIN. Nov. 22, 1946, No. 34686. Convention date, Dec. 3, 1945. [Class 38 (v)] A fixed contact 1 co-operating with a plurality of spring-biassed contacts 2 pivoted on an annular conducting rib 8, carries at its lower end a spring clip contact 4 engageable by the isolating contact 5. Blast-fluid following a path F, F1 through ports 21 in a piston 6 carrying an insulating member 7, actuates the piston to open the contacts 2 against a cylindrical stop 12, and to release a radial blast of fluid which escapes through the hollow contact 1 and past arcing horns 14, such as those described in Specification 615,777, and through a muffler 15. A voltage-limiting impedance 16 is connected across the contacts. The movable contacts may alternatively be in the form of a pair of elongated members (Fig. 3, not shown), and may be pivoted on an insulating rib 8 and formed with a lug 18 (Fig. 5) so that the electrodynamic forces acting on the flexible connection 19 and the lug 18 counteract the contactopening forces due to the loop formed by the contacts 1, 2. To delay interruption until adequate blast pressure is built up, and then accelerate the contact opening, lost motion is provided between the member 7, and the contacts 2, for the first part of the piston travel, Fig. 5, and additional air supply ports 17 are uncovered by the piston as it reaches the useful part of its stroke.