baber/WOPTO huggingface dataset:
Patent GB-625035-A (GB)
Title: Improvements in the preparation of ª‰-cycloylpropionitriles
IPC: C07D207/44
Filed: 1946-05-31
Abstract: b -Cycloylpropionitriles are prepared by heating a b -dialkylaminoethylcyclyl ketone salt of the formula R.CO.CH2.CH2.N(R1)2.HX1, wherein R is a cyclyl group, R1 an alkyl group, and X1 an anion, with a metal cyanide.  b -Benzoylpropionitrile is prepared by refluxing together b -diethylaminopropiopheno hydrochloride, potassium cyanide, and water. b -4-Methoxybenzoylpropionitrile, b -4-hydroxybenzoylpropionitrile, and b -2-furoylpropionitrile are similarly prepared.  b -Diethylaminopropiopherone hydrochloride is prepared by refluxing together acetopherone, paraformaldehyde, diethylamine hydrochloride, hydrochloric acid, and ethyl alcohol b -Dimethylamino-b -hydroxypropiopherone hydrochloride is similarly prepared.ALSO:An azamethine dye is prepared by heating a hydroxylamine salt with a b -cycloylpropionitrile of the formula R.CO-CH2-CHR1-CN, wherein R is a cyclyl group and R1, H or an alkyl, aryl or carboxyl group.  2 - Bis - (5 - phenylpyrrole) - azamethine dihydrochloride is prepared by refluxing together b -benzoylpropionitrile, hydroxylamine hydrochloride and industrial spirit. 2-Bis-(5-phenylpyrrole) - azamethine monohydrochloride and sulphate, 2-bis-(5-p-methoxyphenylpyrrole)-azamethine dihydrochloride, 2 - bis - (5 - p - hydroxyphenylpyrrole) - azamethine dihydrochloride, 2 - bis - (5 - 11-naphthylpyrrole) - azamethine dihydrochloride, 2-bis - (5-21 - thienylpyrrole) - azamethine dihydrochloride, 2 - bis - (5 - 4 - methoxyphenylpyrrole)-azamethine dihydrochloride, 2-bis-(5-m-methoxyphenylpyrrole) - azamethine dihydrochloride, and 2 - bis - (3 : 5 - diphenylpyrrole) - azamethine are similarly prepared.  The dyes may be sulphonated.  Specification 554,101 is referred to.
Patent GB-1461773-A (GB)
Title: Clay forming press
IPC: B28B3/24
Filed: 1973-04-06
Abstract: 1461773 Piston extruder O M BULLEY 27 June 1974 [6 April 1973] 16678/73 Heading B5A A piston extruder for clay, comprises a die member removably mounted to the barrel, and apiston reciprocated by a pair of manually operated levers 50, each of which is pivotally attached at 52 to the barrel, and slidable through a pivot 56 connected to the piston. The die member may comprise a plate for extruding a solid section, or an adaptor for the extrusion of a tube. The die member is releasably supported inturned flanges, Fig. 2 (not shown), formed around three walls 14, 16 and 14, of the extruder barrel, and a further such flange formed in a door 18 comprising a further wall of the extruder barrel and which is closed by pivotable latches 28 engaging pins 30 at each side, and which is openable about a pivot for removal and replacement of the die, or adaptor, and for cleaning of the barrel and removal of surplus clay. The piston comprises a plate (42) Fig. 2 (not shown) which fits closely within the barrel, and from which depends a smaller plate (44) secured thereto with lost motion, by a pin (46), which permits air to flow around the pin (46) when the plate (42) is raised, to relieve any vacuum between the plate (42) and the clay. For its reciprocation, the piston plate is attached to the base of a U-shaped member, the arms 38 of which slide within the barrel walls 14 and are attached to frame members 36 which slide externally of the walls 14 between guide strips 48. The reciprocation is effected by the pair of levers 50, joined by an operating bar 54. A hopper 72 is provided, for loading the extruder with clay between the raised piston plate and the door 18. The clay is downwardly extruded through a guide frame having adjustably spaced apart upper and lower members 58, 62, the outer surfaces of which serve as guides for a wire, or knife, by which a required length of the extrudate may be severed. For extruding a tube, the adaptor, Fig. 3, comprises a member 64 having outturned flanges 66 locating onto the inturned flanges of the barrel wall and door 18, and defining a flow passage of increasing section towards a tube extrusion die plate 68 retained by a frame 70. The tubular orifice of the plate 68 is defined between outer and inner parts 69, 71, of the plate, which are replaceably attached together so that the orifice size may be varied.
Patent GB-217429-A (GB)
Title: Improvements in and relating to locking mechanism for windows
IPC: E05F11/00
Filed: 1923-06-27
Abstract: 217,429. Swarbrick, G. June 27, 1923. . Fastenings and holders for sliding windows; locks, permutation. - Sliding windows are secured in various positions by the engagement of a pivoted catch with an apertured rack, and can be locked in position by permutation means. A catch 1 pivoted at 2 to a bracket 3 has a projection 5 entering rectangular slots in a plate 12 secured to the frame. The catch is provided with an operating handle 7 at the end of a protruding shank 6, on the inside. The catch may be operated from the outside by a lever 8 pivoted at 9 and pressed into operative position by a spring 12<1>. To lock the projection 5 in one of the slots in the plate 12, two notched discs 14 are provided, one above and one below the enlarged part 4 of the catch. These discs are set by knobs 18 having a pointer working over a dial 20. When the notches are aligned and opposite the catch may be withdrawn. Catches may be fixed to each side of the window.
Patent GB-1076923-A (GB)
Title: Preserving foodstuffs by drying
Inventor: SAVAGE JACK PALMER
IPC: A23L13/70
Filed: 1964-04-22
Abstract: A dehydrated meat product is prepared from meat containing starch that has been subjected to retrogradation.  The meat may be the flesh of mammals, poultry, fish or crustacea.  The starch may be introduced into the meat by injection or, where the meat is comminuted, by simple mixing.  The preferred starch is cornflour used as a suspension of uncooked starch in a solution of cooked starch, but wheat, tapioca or arrowroot starches may be used. Retrogradation of the starch is preferably effected after incorporation in the meat by heating the meat to above 70 DEG C. and cooling to a temperature at which the water in the meat freezes, but the starch may be heated before introduction into the meat and then frozen in the meat.  The meat is then dried by conventional methods such as freeze-drying, or vacuum or air drying, after thawing if necessary.  The usual additives such as flavours, colours, anti-oxidants, curing salts, and binders may be incorporated in the meat.
Patent GB-919290-A (GB)
Title: Improved instruments case
Inventor: SINCLAIR WILLIAM
IPC: H05K5/04
Filed: 1960-05-12
Abstract: 919,290. Instrument housings. ERICSSON TELEPHONES Ltd. April 27, 1961 [May 12, 1960], No. 16729/60. Class 37. Fig. 1 shows an instrument casing in which the cover 1 is drawn by screws 4 at the rear into engagement with a sloping panel 2 fixedly supported from the base 3 by members 5. The part 7 of the cover is drawn under the front edge of the panel and a turned-down portion bears on to the rear edge of the panel. Screws 4 pull a threaded L-shaped clip 12 into engagement with the cover and with a strip 8 fastened to it, e.g. by glueing or by forming integrally with the cover. The Specification refers to the possibility of making the cover of plastics material by vacuum forming or moulding.
Patent GB-1116025-A (GB)
Title: A system for the inductive transmission of messages to vehicles equipped with receivers
IPC: G08G1/0967
Filed: 1967-04-12
Abstract: 1,116,025. Inductive signalling. TELEFUNKEN PATENTVERWALTUNGS G.m.b.H. 12 April, 1967 [11 May, 1966; 19 Nov., 1966], No. 16737/67. Heading H4U. In an inductive signalling system for vehicles travelling along a road, wherein in each direction of travel an advance loop is provided ahead of each message transmitting loop, each mobile receiver is arranged so that switching on of the receiver is prepared when a signal from the advance loop is received and is completed when a signal from the message loop also is received, the receiver being switched off when the signal from the message loop ceases. As shown in Fig. 2, the demodulator 6 in the mobile receiver normally is blocked. When a signal f 1  from the advance loop is received at ferrite aerial 3 it is amplified at 4, selected by a tuned circuit 9 and rectified at 10 to close an electronic switch 11 supplying an operating voltage U B  to an amplifier 12. In the area between the advance loop and the main loop the frequency f 2  from the main loop also is received and is selected at 5, amplified at 12 and rectified at 13 to operate an electronic switch 14 unblocking the demodulator 6. The D.C. component from the demodulator 6 is amplified at 15 and operates an electronic switch 16 supplying voltage U B  to the amplifier 12 to maintain the amplifier 12 in operation when the frequency f 1  is no longer present. When the frequency f 2  ceases the switch 16 is opened. In a modification, Fig. 3 (not shown), an electronic switch (17) at the output of circuit (5) controls a damping device (18) connected between circuit (9) and rectifier (10). This is arranged to prevent the unblocking of demodulator (6) when frequencies f 1  and f 2  are present together without the previous appearance of f 1 .
Patent GB-331347-A (GB)
Title: Improvements in means for starting internal combustion engines
IPC: F01L13/08
Filed: 1929-05-31
Abstract: 331,347. McLaren, H. May 31, 1929. Starting. - For starting heavy-oil high-compression or other engines, one or more exhaust valves are held open during a predetermined number of turns of the engine shaft by means of wedges 13 which are interposed between a collar 20 on the cam shaft 2 and a member connected to the valve stem, and are automatically withdrawn after a certain number of turns of the engine shaft. The wedges 13 are interposed between the collars 20 and forked ends 10 of members 8, mounted on the exhaust-valve stems 4, and carrying rollers 11 bearing on the cams 3. The wedges are connected to arms 14 on a rock-shaft 15, an arm 19 on which is engaged by a rod 18 actuated by a hand-operated bell-crank lever 17. Pivotally mounted on a stud 23 passing transversely through the rockshaft 15 is a lever 24 oscillating in a slot 25 in the shaft 15; one end of the lever 24 is connected by a spring 26 to a lug 27 on an adjacent arm 14 on the shaft 15, and the other end has a pin engaging a screw-threaded part 29 of the camshaft when the wedges 13 are in their operative position as shown. After a number of turns of the engine shaft, the lever 24 rides off the threaded part 29 and the wedges 13 are withdrawn by a spring 21 acting on the rod 18.
Patent GB-425595-A (GB)
Title: Hygienic attachment for telephonic and like apparatus
IPC: H04R1/12
Filed: 1933-06-13
Abstract: 425,595. Sanitary and hygienic devices. BORELLO, A., 36, Via XX Settembre, Genoa, Italy. June 13, 1933, No. 16828. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 21, 1934]. [Class 40 (iv)] A hygienic device for telephone receivers or transmitters comprises a cap 3 of paper or fabric impregnated with an antiseptic, metal foil, metallic gauze, celluloid, rubber, &c., the cap having a crimped flange 4 as shown in Fig. 1 so as to grip the earpiece of the receiver. The front of the cap may be provided with perforations or scores 5, Fig. 2, to facilitate local tearing so as to indicate that the device has been used. According to a modification, Figs. 3 and 4, (not shown), the cap is held in place by elastic cords. Figs. 6 and 7 show a further modification in which the device 3 is shaped to conform to the wall 10 of the earpiece and is provided with a projection 11 adapted to engage in the central hole 9 in the earpiece.
Patent GB-680258-A (GB)
Title: Improvements relating to yarn winding machines
IPC: B65H54/28
Filed: 1950-07-06
Abstract: 680,258. Winding yarn. SPECIALTIES DEVELOPMENT CORPORATION. July 6, 1950 [July 9, 1949], No. 16884/50. Class 120(ii) A yarn traverse mechanism for a winding machine comprises a pair of substantially identical cam-like members 24 each having a heart-shaped yarn guiding surface 52 provided with a peak 54 and a dwell 55, means for rotatably mounting the cam members and driving them at the same speed with their yarn-guiding surfaces adjacent and facing each other to define a yarn-guiding slit, the members being so positioned that the peak 54 of one member is opposite the dwell 55 of the other member. The cam members, which are of conical form, as shown, are attached to shafts 34 inclined at 120 degrees to each other and rotated, in ball bearings, by a shaft 30 driven from a pulley 16 which also drives the winding spindle 12. The members 24 which may be lightened by apertures 57 and dynamically balanced are contained in a casing 25, slit down the middle thereof, for threading-up, and provided with a rectangular slot 46 in the top through which the yarn comes in contact with a roller 26. The cone-angle of the member 24 is 30 degrees so that they may, if desired, be used to rotate the package as a drum-winding machine.
Patent GB-145531-A (GB)
Title: Improvements in and relating to auxiliary air and throttle valves
IPC: F02D9/00
Filed: 1920-06-22
Abstract: 145,531. Pledger, D. J. April 16, 1919. [Convention date]. Regulating.-An extra-air valve in the induction pipe is connected to the throttle valve in such a manner that, on the depression of a pedal, the throttle valve is opened first. but the air valve afterwards opens more rapidly than the throttle valve. Means are provided for relative adjustment of the rates of opening of the two valves, and for rapid opening of the throttle valve for emergency purposes. An arm 14 on the pedal 12 is connected by universal joints 19 to two sliding rods 15, 29 for actuating the air valve 10 and the throttle c respectively. The rod 15 is adjustably screwed into a member 20 having a slot engaged by a pin 24 adjustably mounted on an arm 11, which is adjustably connected by a split sleeve 27 to the spindle of the air valve. The rod 29 has cam faces 29<a>, 31, 32 which engage an arm 40 on the spindle c of the throttle valve to effect the initial opening of the throttle, the gradual increase in the throttle opening, and the final rapid opening for emergency purposes. The rod 29 slides in a bracket 36 angularly adjustable about the connecting-flanges 34 of the carburettor C and the induction pipe. The throttle valve is also controlled independently of the air valve by means of a rod 43, which is connected to a hand control and is in two parts with a pin-and-slot connexion and a spring to allow the movement caused by the pedal 12.
Patent GB-492996-A (GB)
Title: Improvements in or relating to air separators for pumps
IPC: F04D9/00
Filed: 1937-06-18
Abstract: <PICT:0492996/III/1> <PICT:0492996/III/2> An air separator for the inlet conduit of a centrifugal pump 20 comprises a weir 2 depending from the top of the casing and curved upwardly and reflexly to form an inlet 4, and a second weir 3 rising from the bottom of the casing. The first weir may be divided, e.g. into four parts by lateral partitions 9-11, Fig. 2, which may extend through the device to the second weir.  A float-controlled air escape valve 14 is mounted above the first weir and communicates with the space above the second weir through an aperture 17.  Specification 369,411, [Group XXVI], is referred to.
Patent GB-1185074-A (GB)
Title: Improvements in or relating to Oscillation Dampers
IPC: F16F9/512
Filed: 1967-04-13
Abstract: 1,185,074. Oscillation dampers. FICHTEL & SACHS AG. 13 April, 1967 [16 April, 1966], No. 16977/67. Heading F2S. An oscillation damper, particularly for motor vehicles, whose damping action is variable in dependence on the loading of an associated pneumatic, or hydropneumatic, springing element not shown, comprises a piston and cylinder hydraulic damper 1, 2, 4, e.g. with a liquidgas compensating chamber 11 and two-way valves 5, 8 respectively in the piston 4 and a bottom plate 6, and a by-pass passage which is controlled by a valve 17 in a regulating housing 15, the pressure prevailing in the springing element being introduced into a control space 28 in the housing 15 through a pipe 25 and the control space pressure acting on the valve 17 through a diaphragm clamped at its periphery to the housing 15. As shown, two diaphragms 18, spaced by a distance piece 19, are clamped, with the interposition of a ring 22 with a vent 23, to the housing 15 by an end cover plate 24 the inner diaphragm 18 being connected to the valve 17 which has a conical portion 20 adapted to seat on one end of a valve bore 16 the other end of the valve 17 being guided in the bore 16, carrying a compensation diaphragm 21 with a guide pin, and being urged in an opening direction, against the pressure prevailing in the control space 28, by a spring 26. The counter force of the spring 26 can be adjusted so that the valve 17 closes when the vehicle is fully laden. The by-pass passage comprises a port 12 in a piston-rod guide 7 and which is connected to the valve bore 16 in the housing 15 by a tube 13, the housing 15 having a connection with the compensating chamber 11. The hydraulic pressure of the latter acts equally in opposite directions on the compensation diaphragm 21 and the inner diaphragm 18. In a modification, Figs. 3, 4, not shown, the valve (17) in the regulating housing (15) is located between the working space (10) and the compensating chamber (11), the recess (33) in the housing (15) and the space below the bottom plate (6) being connected to the compensation space (11) through ports (32) in the housing (15) and the port 12 and tube 13, Fig. 1, being omitted. The cone portion of the valve is replaced by a cylindrical portion (30) having longitudinal grooves of varying depth. In this arrangement the by-pass throttle is only operative when the piston travels into the cylinder.
Patent GB-347930-A (GB)
Title: Improvements relating to electric insulators
IPC: H01B17/02
Filed: 1930-06-02
Abstract: 347,930. Insulators. SOC. CERAMICA R. GINORI, 1, Via Bigli, Milan, Italy. June 2, 1930, No. 17071. Convention date, Oct. 3, 1929. [Class 36.] The cap 2 of a suspension insulator 1 is retained upon the insulator by an annular metal ring 3 located between grooves formed in the cap and insulator body, the ring 3 being formed by pouring a molten metal through apertures provided in the cap. The surface of the insulator adjacent the ring 3 may have a heat-insulating lining. Balls, wires, beads or the like may be incorporated in the ring 3.
Patent GB-923309-A (GB)
Title: Improvements in or relating to electrical components which include a movable contactmember adapted to wipe over a series of contact studs
Inventor: KIGHTLEY ANTHONY JOHN
IPC: H01H1/36
Filed: 1958-05-29
Abstract: 923,309. Mechanical switches, without quickaction. PAINTON & CO. Ltd. May 29, 1959 [May 29, 1958], No. 17205/58. Class 38 (5). A switch with a wiper moving over two parallel groups of contacts, has a rigid wiper body carrying salient contacts, one of which is elongated in the direction of movement or which comprises two spaced contacts such as to give three-point contact. The body 4 carries three stud contacts (two only 7, 8, shown) at the apices of an equilateral triangle and is driven by a wiper arm 1 which also applies contact pressure. The body is also prevented from rotating by the arm 1. In an alternative construction (not shown), the contacts are carried by metal strip bent to embrace a non- conducting rigid block.
Patent GB-802425-A (GB)
Title: Production of carbon disulphide using purified hydrocarbon gas and sulphur
Filed: 1956-06-04
Abstract: In the production of carbon disulphide by the catalytic or non-catalytic interaction of methand- and/or ethane-containing gas and sulphur at a temperature of 450-700 DEG  C., a hydrocarbon gas containing (other than inert constituents) at least 96 mol. per cent. of methane and/or ethane, not more than 4 mol. per cent, of hydrocarbons containing 3 or more carbon atoms, and not more than 0.7 mol. per cent of hydrocarbons containing 4 or more carbon atoms, and produced from a hydrocarbon gas containing more than 4 mol. per cent. of hydrocarbons containing 3 or more carbon atoms, and substantially pure sulphur obtained from natural sulphur containing a substantial amount of carbonaceous impurity, are employed.  The hydrocarbon gas may contain 80 per cent of ethane but usually contains not more than 10 per cent thereof.  It preferably contains not more than 0.3 mol. per cent of hydrocarbons containing 5 or more carbon atoms. Hydrocarbon gas may be modified for use in the invention by treatment with absorbent oil, charcoal or clay, by mild cracking, or by a prereaction in a non-catalytic chamber.  Hydrocarbon gases specified are natural, refinery, and coke oven gas.  Purified sulphur is used as described in Specification 802,426.
Patent GB-769419-A (GB)
Title: Improvements in or relating to cold cathode electric discharge devices
IPC: H01J17/44
Filed: 1954-06-11
Abstract: 769,419. Cold-cathode tubes. GENERAL ELECTRIC CO., Ltd., and MILLER, J. S. May 24, 1955 [June 11, 1954], No. 17244/54. Class 39(1). In a cold-cathode trigger tube as described in Specification 761,882 the trigger electrode 7 is spaced at such a distance (about 0À3 mm.) from the plate cathode 1 that the auxiliary discharge cannot take place over the shortest path between these electrodes but follows paths on either side of this shortest path and is consequently not shielded from the rod anode 5 by the trigger electrode 7. The cathode plate 1 may be curved, e.g. part cylindrical and may be of molybdenum or tantalum with the operative surface cleansed by sputtering. Alternatively the cathode may be of nickel coated on its operative surface with a mixture of barium, strontium and calcium oxides activated during manufacture of the tube by the method described in the above Specification. The trigger electrode 7 may be a narrow strip and may be mounted parallel to the anode 5. The distance of the trigger electrode 7 from the edges of the cathode 1 is at least three times the shortest distance between these electrodes to prevent a discharge occuring to the rear face of the cathode. A length of cored getter wire 13 forming part of a closed conducting loop 14 is attached to the top of the anode 5. The gas filling is a mixture of 75 per cent neon and 25 per cent argon at a pressure of 40 mm. of mercury.
Patent GB-1092938-A (GB)
Title: Improvements in and relating to reinforcing woven and non-woven fabrics
IPC: D04H1/645
Filed: 1965-04-23
Abstract: Woven or non-woven fabric is impregnated with a solution of a rubber-like linear polymer having unsaturated side chains and the polymer is cross-linked, before or after drying to remove solvent, with a gas that reacts with double bonds.  The polymer may be oxy propylene cyclooctadiene monoepoxide rubber or a terpolymer of ethylene, propylene and dicyclopentadiene.  Its solvent may be hexane or carbon tetrachloride.  The solution may have a solid content of 5-10%.  The gas may be ozonised air or oxides of nitrogen.
Patent GB-1178575-A (GB)
Title: Lathe Tailstock
IPC: B62D1/187
Filed: 1967-04-14
Abstract: 1,178,575. Lathe details. OERLIKON-BUHRLE HOLDING A.G. 14 April, 1967 [15 April, 1966], No. 17327/67. Heading B3T. A lathe tailstock comprises a toolhead 33 mounted to rotate in a housing 14 about an axis parallel to that of the tailstock to bring a series of tools in the toolhead into operative position on the tailstock axis, a piston 8, 10 displaceable along the tailstock axis by hydraulic pressure to effect feed movement of the toolhead and stops 16 which are adjustably mounted, e.g. on a spindle 9 connected to the toolhead and which can co-operate with an hydraulic control valve 21 . . . 24 to control the feed movements of the piston. The toolhead 33 is rotated manually and locked in each working position by a lever 38 engaging teeth of a spur wheel 37 connected to the toolhead, a hand lever being provided to disengage the lever 38. A further hand lever 28 is provided for setting the control valve for feed or return movement of the piston and toolhead, return movement being limited by a stop-ring 17 on the spindle 9.