baber/WOPTO huggingface dataset:
Patent GB-1190541-A (GB)
Title: alpha-Fluoro Malonic Esters
Inventor: CAVALLERI BRUNO
IPC: C07C69/65
Filed: 1967-05-12
Abstract: 1,190,541. α-Fluoro-malonic esters. GRUPPO LEPETIT S.p.A. 29 April, 1968 [12 May, 1967], No. 19983/68. Divided out of 1,175,996. Heading C2C. α-Fluoro-malonic esters of the formula wherein R is aryl, substituted aryl or dibenzofuranyl, are prepared by reacting a diester of the formula wherein R is same as above, with an equimolecular amount of perchloryl fluoride in the presence of NaH in an inert organic solvent. The intermediate malonic diester is prepared by heating a compound of the formula R-CH 2 -COOC 2 H 5 , wherein R has the above significance, with 1 to 1À5 equimolecular amounts of NaH, or sodium ethoxide and at least an equimolecular amount of diethyl carbonate or diethyl oxalate optionally in the presence of an anhydrous solvent. Pharmaceutical compositions containing these fluoroesters are found to have anti-inflammatory activity and are administered orally and intramuscularly.
Patent GB-968926-A (GB)
Title: Improvements in or relating to cellular building elements
IPC: E04C2/54
Filed: 1962-05-24
Abstract: 968,926. Laminates. H. BIERBRAUER. May 24, 1962, No. 20084/62. Heading B5N. [Also in Division E1] A cellular building element comprises two substantially flat sheets of glass 1 arranged in parallel facing relationship, and a plurality of substantially flat strips 2 of the same or other material as that of said sheets disposed between and substantially at right angles to said sheets and individually connecting said sheets together, said strips being secured to said sheets by a thermoplastic adhesive material and subdividing the space between the glass sheets into a plurality of individual cells 4, preferably of substantially equal size, and extending parallel to one another. A composite building element comprises a plurality of the above defined building elements disposed end to end with a T- shaped connecting member disposed between each pair of ends. The thermoplastic adhesive is preferably polyvinyl acetate.
Patent GB-838790-A (GB)
Title: Improvements in or relating to telescopic hydraulic props
IPC: B66F3/42
Filed: 1956-06-29
Abstract: 838,790. Hydraulic pit props. HILL PORTER (NEWCASTLE) Ltd., and TALBOTT, A. C. June 27, 1957 [June 29, 1956; Feb. 22, 1957], Nos. 20134/56 and 5977/57. Class 20(2) [Also in Group XXVIII] An hydraulic pit prop comprising a ram 11 in a cylinder 9 is detachably or fixedly connected by a pump and valve housing 10 to a coaxial cylindrical reservoir 8. The pump comprises a plunger rod 32 in a bore 10<SP>c</SP> operated by means of a head 32<SP>c</SP>, Fig. 4 and having a conical part 32<SP>b</SP> adapted at the beginning of the combined pressure and suction stroke to seat on the annular plunger 34 to close the passage through this plunger, which is opened on the reverse stroke when a perforated disc 33 on the end of the plunger rod returns the plunger 34 through which liquid passes. The release valve 18 is opened by a rod 18<SP>a</SP>, pivoted block 20 and plunger 26 operated by a cam lever 23. A relief valve is contained in a bore 10<SP>b</SP> of the block 10. The plunger 34 may be provided with a wedge or helical part 34<SP>a</SP>, Fig. 5 adapted to be engaged by a pin 35 on the rod 32 when it is desired to move the rod to the left without closing the passage through the plunger. At high pressures the rod 32 is operated by a lever, Fig. 6, having a pin 31 adapted to be inserted in an eye on the housing 10 and a claw 37 adapted to engage under the head 32<SP>c</SP>. The other end of the lever carries an offset extension 38<SP>a</SP> adapted to be inserted under the bracket 25 supporting the lever 23 and against the end of the plunger 26 to open the valve 18 momentarily for gradual release of the prop.
Patent GB-442354-A (GB)
Title: Improvements in files and rasps
IPC: B23D71/00
Filed: 1935-07-15
Abstract: 442,354. Files and file holders. SEIFRIED, S., 11, Friedrichstrasse, and RIES, F., 45, Kaiserstrasse, both in Munich, Germany. July 15, 1935, No. 20148. Convention date, July 13, 1934. [Classes 61 (i) and 61 (ii)] A file comprises a number of thin longitudinally arranged file blades 1 held together by spaced means such as washers 3 and bolts, screws or rivets 2 providing clearance spaces between the blades to increase the self cleaning action of the file, the handle being clamped between the end abutments 11, 12 of a holder 4 by means of a wedge key 5 and screw 6. The individual blades may be welded together or of graded width to act as a half round file, Fig. 3, the inner surface of the holder 4 being curved transversely. Fig. 5 shows the holder 4 curved in a longitudinal direction at 13, to receive a correspondingly formed file member 1.
Patent GB-795291-A (GB)
Title: A device for removing dust from dust-carrying gas
IPC: B01D50/00
Filed: 1956-06-29
Abstract: 795,291. Gas cleaning apparatus. KLOCKNER-HUMBOLDT-DEUTZ AKT.-GES. June 29, 1956 [June 30, 1955], No. 20203/56. Addition to 792,213. Class 8(2). Apparatus for separating dust from hot gas comprises two or more horizontal casings 60, 61, 62, Fig. 10, connected in parallel to a common inlet 68 and a common outlet 72 and the outlet or the inlet of each casing is provided with a flap gate 74, 75, 76 whereby it may be isolated from the common outlet 72 during a filter cleaning period ; each casing being provided with a plurality of metal wires as claimed in the parent Specification spaced laterally across its entire cross-sectional area and located in longitudinally spaced planes between the inlet and outlet, transverse baffle means to prevent incoming gas from by-passing the wires, means for shaking the wires and a hopper for collecting dust so removed provided with a worm discharge conveyer. Each flap gate 74, 75, 76 is carried by a horizontal shaft 77, 78, 79 connected by a lever, e.g., 80, Fig. 9 to a hydraulic piston and cylinder device controlled by an electric motor 86 provided with a time switch which also controls drive motors 93, 94, 95 for each hopper discharge screw and for shafts 63, 64, 65 to which are secured cam discs 54 by means of which jolting of weights 51 connected to the wire carrying frames (not shown) is effected.
Patent GB-641639-A (GB)
Title: Improvements in or relating to machines for forming notches in photographic film backing paper
Inventor: BOWLER VALENTINE MARCUS
IPC: B26F1/12
Filed: 1948-07-29
Abstract: 641,639. Cutting apparatus. KODAK, Ltd. July 29, 1948, No. 20282. [Class 31 (i)] A machine for forming notches, at predetermined intervals, in a roll of backing paper for photographic roll films, comprises supply and take-up spindles for a roll of backing paper, a punching station where marginal notches are stamped out of the backing paper by a punching tool to define the leading and trailing ends of each spool length of film backing paper, means actuated by the return movement of the tool for operating a drive means-for the take-up spindle to wind the notched backing paper on to the take-up roll, and means under the control of the notches formed in said paper for stopping the drive means when the required length of paper has been wound. As shown in Fig. 3, paper 4 carried on a supply roll 5 is led to a punching station 8, where marginal notches are punched out by a tool comprising trapezoidal plates 25 mounted on a casting 26, Fig. 5, the paper then passing to a labelling station 9, Fig. 3, and around a system of tensioning rollers, not shown, to a take-up roll 16. The roll 16 is driven by an electric motor which is energized through a switch 63 actuated by the return movement of the punching tool and is de-energized by a switch 73 operated by an arm 72 which normally rides on the surface of the paper 4 but drops down and operates the switch when a cut-out portion of the paper arrives at this point. Adhesive labels 40 in strip form are fed from a drum 41 round a roller 44 and along a guide 45, Fig. 4, which overlaps the strip of paper 4. Downward movement of the casting 26 causes the end label 40b to be pressed on to the paper 4 by pad 57, and severed by a pivoted-blade cutter 54, the next label 40c being pressed by pad 58 on to a moistened wick 51. The label strip is fed by a claw 49, Fig. 4, which engages slots 47a in the strip and is carried on a carriage 48 having a pin-and-slot connection with a lever 66 actuated by a solenoid which operates when the motor is started.
Patent GB-257726-A (GB)
Title: Improvements in and relating to tar spraying devices
IPC: E01C19/16
Filed: 1925-08-13
Abstract: 257,726. Hey, W. Aug. 13, 1925. Surface treatment with liquid materials; cauldrons.-A wheeled tar distributing tank A is provided with an outlet valve F leading to a spraying trough S, the valve being connected to the hinged draw-bar M so that, when a pull is exerted, the valve is automatically opened against the action of a spring L. In the form shown the valve is hinged at H and is connected by a chain K to the draw-bar. The tar is discharged on to a part-cylindrical surface T leading to the spraying-trough. The tank may be provided with a heating furnace and the upper edges of the tank may be fitted with splash guards W.
Patent GB-1357874-A (GB)
Title: Guarded oil test cell with triaxial connector plate
IPC: D06N7/06
Filed: 1973-04-30
Abstract: 1357874 Oil-power-factor test cell BECKMAN INSTRUMENTS Inc 30 April 1973 [8 May 1972] 20360/73 Heading G1N The test cell comprises a P.T.F.E. casing 12, having a stainless steel 3-way jackplug 18 projecting from the front wall 21 and a stainless steel concentric electrode assembly depending therefrom. This assembly comprises a measuring electrode 60 with an enlarged lower portion 61; tubular guard electrode 66; and outer tubular electrode 76 mounted on a ring of stainless steel 72. Tubular stainless steel connections 118 are provided between the plug and guard electrode to shield the measuring lead. A glass cup 77 with an entry hole 78 Fig.1 may surround the electrodes, or the outer electrode 76 may be formed as the oil container cup.
Patent GB-366415-A (GB)
Title: Improvements in winches for life-boats
IPC: B66D1/26
Filed: 1931-07-18
Abstract: 366,415. Winches. DINGERTZ, K., 23, Brahmsallee, Hamburg, Germany. July 18, 1931, No. 20602. Convention date, July 23, 1930. [Class 78 (v).] In a winch for raising and lowering ships' lifeboats of the kind in which an auxiliary drum is arranged on a separate shaft opposite two main drums and is wrapped by an auxiliary rope, an intermediate gear shaft 3, on which is mounted the brake drum 4, is arranged between the main drums 1, 2. The auxiliary drum 5, on which is wound the actuating rope 8, is connected by a clutch to the shaft 6 which is geared to the shaft 3.
Patent GB-1096255-A (GB)
Title: Gas purification apparatus
Inventor: FERRETTI JULIUS JOSEPH
IPC: B01D47/02
Filed: 1966-05-10
Abstract: 1,096,255. Washing gases. J. W. T. FERRETTI. May 10, 1966, No. 20602/66. Heading B1R. Gas to be washed is passed through a vessel containing inclined plates 20, 22, 24 and 26 alternately perforated at a lower and an upper region, tongues 42, 48, 56 and 60 formed by punching the perforations in the plates are bent as shown and plates 20, 22 and 24 are irrigated with washing liquid.
Patent GB-183842-A (GB)
Title: Device for correcting carburation
IPC: F02M1/00
Filed: 1922-07-27
Abstract: 183,842. Guillemette, R. July 27, 1921. [Convention date]. Void [Published under Sect. 91 of the Act]. Induction pipes, fittings for.-Hot or cold air, or a mixture of both, is admitted to the induction pipe between the carburettor and the engine through a perforated cylindrical tube a carrying a perforated pipe h, the tube being surrounded by an annular chamber c to which the air is admitted from hot and cold air pipes e controlled by a three-way cock f. The cock f may be operated from a distance, and is pressed away from its seat by a spring i to prevent binding under the influence of the suction.
Patent GB-1207535-A (GB)
Title: Apparatus for treating pulp for paper making
IPC: D21B1/12
Filed: 1967-07-25
Abstract: 1,207,535. Defibrating apparatus. DAISHOWA PAPER MFG. CO. Ltd. 25 July, 1967 [31 Dec., 1966], No. 20618/68. Divided out of 1,207,534. Heading B2A. [Also in Division D2] Apparatus for treating pulp for papermaking comprises means for feeding pulp flakes, a blower to supply a current of air to carry the pulp flakes in suspension therein, a duct connecting the feeding means with a fibrillator, and the fibrillator which has a fine-toothed surface on its circumferential inner circumferential wall and a bladed rotor. As shown, the fibrillator comprises a cylindrical casing 101 and a rotor 102, and is connected with the blower duct 16 and an outlet 17. The casing has a metallic lining 31 of which the portion near the duct 16 is finely toothed, and the other portion is arcuately curved at 32. The rotor comprises two discs 33 and 34 and a number of blades 35 to drive the air current and pulp ffakes against the toothed surface, and is driven by the shaft 36.
Patent GB-222461-A (GB)
Title: Apparatus for the synthetic production of ammonia from its elements
IPC: C01C1/04
Filed: 1924-09-02
Abstract: 222,461. Woosnam, A., (Norsk Hydro- Elektrisk Kvaelstofaktieselskab). Sept. 2, 1924. Catalytic apparatus; ammonia, catalytic production of from nitrogen and hydrogen.-Apparatus for the synthesis of ammonia comprises an outer pressure-resisting chamber and an inner chamber containing the catalytic material, the walls of the inner chamber being so formed as to allow the passage of the gases therethrough. To start the reaction, the inner chamber may ba heated electrically or bv the combustion of the reaction gases with air introduced into the space between the two chambers. As shown in the Figure, the reaction chamber 8 is formed of a series of rings 9 made of heat-conducting material such as metal or of heat-insulating material such as asbestos, the rings being kept in place by bolts 10 fastened to the closure members 4, 11 of the outer pressure-resisting chamber 1. The walls of the inner chamber may, however, be formed of porous material or of loose material disposed between two perforated tubes. The space between the two chambers is provided with inlet and outlet passages 13, 15. When the synthesis is in progress, the gases enter the apparatus by pipe 7, pass through the catalytic material, escapein part through the rings 9 into the space between the chambers and issue from the apparatus by the pipes 14, 15. To raise the reaction chamber to the operating temperature, air is supplied by the pipes 13 at the same time that the reaction mixture is being introduced by the pipe 7, the combustible mixture formed is then ignited by electrical means, and the combustion products discharged by the pipes 15. Alternatively, the necessary heat is supplied by means of an electrically-heated spiral 16 in the space between the two chambers or by means of an electric heating device 18 contained in a pipe 17 built up of rings within the inner chamber. Once started, the reaction proceeds without the application of further heat. In the event of it being necessary to cool the catalyst chamber, fresh reaction gases may be supplied by the pipe 13.
Patent GB-597194-A (GB)
Title: Improvements in electrical differentiating circuits
IPC: G06G7/184
Filed: 1945-08-11
Abstract: 597,194. Pulse generators. RATSEY, O. L., and WRIGHT, C. S. Aug. 11, 1945, No. 20692. [Class 40 (v)] A differentiating network CR has its return to the normal state accelerated by means of a biassing voltage V which is several times larger than the maximum input voltage VI and is applied through the shunt arm R of the network to a valve D connected across the output terminals so that it is normally conducting. Diode D clamps terminal B at a low positive potential v until a negative input wavefront drives it negative to cut-off the diode and allow capacitor C to change rapidly towards the high potential +V. When the potential becomes positive again, the clamping action is restored.. For positive wavefronts, the diode is reversed and resistor R is connected to a negative potential source. When very short pulses are required, the network may be fed from another differentiating circuit, and the diode may be replaced by the grid-cathode path of a triode valve to produce an amplified pulse at the anode.
Patent GB-892236-A (GB)
Title: Improvements in or relating to transistor modulators
IPC: H03C1/36
Filed: 1958-06-27
Abstract: 892,236. Phase-sensitive circuits. MINNEAPOLIS-HONEYWELL REGULATOR CO. June 27, 1958 [June 27, 1957], No. 20697/58. Class 38 (4). In a modulator or chopper, Fig. 1, a D.C. signal is applied across terminals 20, 22 of a bridge 10 and an A.C. signal is derived from terminals 24, 25 having a magnitude and a phase relationship relative to a reference signal dependent on the magnitude and polarity of the applied D.C. signal. Two adjacent arms of the bridge are formed by symmetrical-junction transistors 11, 12 and the remaining pair of arms of resistors 34, 35 of equal value. Transistor 11 is biased to give alternately high and low emitter-collector impedance by a device 83 supplied from a secondary 85 of a transformer 87 connected to an A.C. supply. During the negative half of the reference signal cycle, Fig. 3, curve B, a diode 94 conducts, charging a capacitor 92 and applying a bias, Fig. 3, curve A, to the transistor 11 by a circuit to an emitter 15 and a collector 13 through a resistor 95 and a potentiometer 40, and from the base 14 through resistors 105, 106 to the junction 93. The time constant of the capacitor 92 and its discharge path through resistors 93, 103, 106 is large and a discharge current is maintained in resistor 95 throughout the reference signal cycle, so that a diode 100 conducts at a point E on curve A before the reference signal becomes positive. During the positive halfcycle of the reference signal, bias is applied to the emitter 15 and collector 13 of transistor 11 through resistor 95 and potentiometer 40 and from the base 14 to the diode 100. Due to the action of the capacitor 92 the bias on transistor 11 does not fall to zero until the reference signal is negative. When biased positive, the emitter to collector circuit of the transistor is of low impedance and conversely, with negative bias the impedance is high. A similar device 84 supplies a bias to the transistor 12 which is 180 degrees out of phase with that to transistor 11. In another embodiment, Fig. 2 (not shown), the bridge 10 is arranged with the transistor 12 and resistor 34 transposed. Potentiometers 40, 43 are adjusted for minimum A.C. signal across terminals 24, 25 with zero applied D.C. signal to terminals 20, 22. An amplifier 50 is connected to terminals 24, 25 and comprises directly coupled transistors 51, 52, a D.C. bias being arranged between an emitter electrode 53 and a base 55 to maintain a quiescent current in the transistor 51.
Patent GB-148886-A (GB)
Title: Improvements in and relating to press buttons
IPC: A44B17/00
Filed: 1920-07-10
Abstract: 148,886. Windgassen, E. Sept. 27, 1913, [Convention date]. Void [Published under Sect. 91 of the Act]. Press-button fasteners. -The socket portion of a press - button fastener, which is adapted to be secured in place by an eyelet, has an annular groove stamped therein, the inner wall i of the groove being inclined or curved and the bottom w<1> of the groove rounded, so as to cause the inner end of the eyelet r to be expanded and turned over. The outer edge w of the groove is pressed inwards, as shown, during the process of affixing the fastener.
Patent GB-614562-A (GB)
Title: Improvements in and relating to strainers for tea and coffee pot spouts and the like
IPC: A47J31/14
Filed: 1946-07-11
Abstract: 614,562. Strainers for teapots. WALLER, W. M., and WALLER, P. H. July 11, 1946. No: 20709. [Class 129] [Also in Group I] A strainer for insertion in the spout of a tea or coffee pot is formed by a strip closely coiled into conical form with the convolutions overlapping. The strip may be provided with slits or perforations and an integral or attached hook 2 for engaging the spout. The strip may be widened at the base of the cone and slotted to make the base elastically contractible.
Patent GB-614291-A (GB)
Title: Improvements relating to the deposition of metallic films on the surface of natural or synthetic rubbers
IPC: B29C37/00
Filed: 1946-07-11
Abstract: A metallic film is deposited on the surface of a natural or artificial rubber, e.g. neoprene or a copolymer of butadiene and acrylonitrile or styrene, by supplying a film of metal to a surface to which it will not adhere firmly, and vulcanizing the rubber in contact with the metal film in the presence of a bonding-agent.  The bonding-agent may be a layer of electrolytically-deposited brass, which may also constitute the film to be applied, or a chlorinated, sulphonated, or hard rubber, a rubber hydrohabide, a phenyl isocyanate derivative, or a synthetic resin.  The film is first deposited on a metallic surface which has previously been treated to permit the electrolytic deposition but prevent the adhesion of the film, e.g. by coating with graphite or a soap solution.  An ornamental effect can be produced by the use of more than one metal, by depositing the metallic film on portions only of the surface or by removing portions of the film before or after bonding.
Patent GB-757264-A (GB)
Title: Monoamides of trihalomethanephosphonic acid monoesters and compositions containing the same
IPC: C07F9/6571
Filed: 1954-07-16
Abstract: Vinyl amido trihalomethane phosphonates (see Group IV (b)) may be polymerized.ALSO:The invention comprises monoamides of trihalomethane phosphonic acid monoesters of the formula <FORM:0757264/IV(a)/1> in which the Y's are halogen, preferably chlorine or bromine, R is an organic radical and R1 and R11 are organic radicals or hydrogen, and a process for preparing them by the action of carbon tetrahalides on amidophosphite diesters of the formula <FORM:0757264/IV(a)/2> or <FORM:0757264/IV(a)/3> the latter giving a product in which R is a vinyl group.  In examples, carbon tetrachloride or tetrabromide is reacted with di-n-butyl N : N - di - isopropylamidophosphite, and the corresponding dimethyl N-methyl, dipropyl N : N - bis - (2 - ethylhexyl), diphenyl N : N-dicetyl, diisobutyl N-methallyl, dibutyl N-ethanolamido-, and dioctyl N : N-dicyclohexyl-amido-phosphites to give the corresponding alkyl or aryl N : N-disubstituted-amido-trichloro- or -bromo-methanephosphonates, the R111 being eliminated as chloride or bromide; and carbon tetrachloride is reacted with N : N-disubstituted - amino 1 : 3 : 2 - dioxaphospholanes to give vinyl-N : N-bis-(2-ethylhexyl)-amido-, -N : N-dimethylamido-, -N : N-di-phenylamido-, and N-hexyl-N-methylamido-trichloromethanephosphonates, and some 1-propenyl and 1-butenyl products from the corresponding 5-alkyl phospholanes.  A list of products obtainable is given.  N : N-substtuted - amino - 1 : 3 : 2 - dioxaphospholanes may be obtained by the action of amines on 2 - chloro - 1 : 3 : 2 - dioxaphospholane or metal alcoholates on amido-dichlorophosphites.  A number of other amine substituents are referred to.ALSO:Substituted monoamides of trihalomethane phosphonic esters (see Group IV(b)) may be added to hydrocarbon or synthetic lubricating oils, such as polymers and co-polymers of alkylene glycols and alkylene oxides, or organic esters, e.g. di(2-ethyl hexyl) sebacate.  The amides have the formula:- <PICT:0757264/III/1> in which the Y's are halogen, R is an organic radicle and R1 and R11 are organic radicles or hydrogen. Solutions thereof in the same or lighter vehicles may be used as cutting oils or ingredients thereof, and as vehicle may be used light naphthas, kerosene, aromatic solvents and more viscous and heavier oils; the cutting oils may be used as emulsions in water.