baber/WOPTO huggingface dataset:
Patent GB-611860-A (GB)
Title: Improvements in nut locking devices
IPC: F16B39/20
Filed: 1946-05-10
Abstract: 611,860. Locking nuts. HAWKER AIRCRAFT, Ltd., TIDMARSH, L. J., and VINEY, H. W. May 10, 1946, No. 14237. Addition to 585,071. [Class 89 (i)] Nuts arranged to receive a locking-wire as described in the parent Specification have the outer face of the nut turned down to form shoulders 12 and 14. A thin ring 13 is secured against the shoulder 14 by peening over the spigot at the same time filling notches 16 in the ring to prevent relative rotation. The shoulder 12 may be inclined as shown or may be radial the ring being then dished towards the shoulder to close the groove at the corners of the nut. A dished ring may be used with an inclined shoulder.
Patent GB-1498337-A (GB)
Title: Cleaning of oils contaminated with metal particles
IPC: C10G19/02
Filed: 1976-04-08
Abstract: 1498337 Treating used oils SWISS ALUMINIUM Ltd 8 April 1976 [10 April 1975] 14258/76 Heading C5E Fine particles of aluminium or an aluminium alloy contained in a rolling lubricant oil are coagulated by adding to the oil an aqueous solution of sodium carbonate having a pH of at least 9. A stream of oil 3 from the rolling of aluminium foil is heated at 4 and 5 to 60-95 C. and reacted at 11 with sodium carbonate solution added from a tank 12; the coagulated matter is separated by a centrifuge 15 and cooled at 4. The process can alternatively be carried out by adding the aqueous solution to a batch of the oil and allowing the coagulated matter to sediment out.
Patent GB-706206-A (GB)
Title: Improvements connected with electric cartridge fuses
Inventor: POWELL ERIC
IPC: H01H85/157
Filed: 1951-06-18
Abstract: 706,206. Fusible cut-outs. REVO ELECTRIC CO., Ltd. June 18, 1952 [June 18, 1951], No. 14347/51. Class 38 (1) In a cartridge fuse a dished copper washer c is positioned at each end of the body a and the fuse wire d is passed through a hole c<SP>1</SP> in the washer centre and clamped between the flange of the washer and an end cap b, the dish-shaped space between the washer and end cap being filled with asbestos e. According to a modification, Fig. 2 (not shown), each end of the fuse wire enters a hole c' and passes through a further hole formed at the edge of the dished portion of the washer c to the back of the flange, and is clamped between the flange and the corresponding end of the body a.
Patent GB-941748-A (GB)
Title: Derivatives of 3-methyl-4-alkoxycarbonyl-4-phenylpiperidine
IPC: C07D211/64
Filed: 1961-04-20
Abstract: The invention comprises compounds of the general formula: <FORM:0941748/C2/1> and pharmaceutically useful non-toxic salts thereof wherein R is a C1-3 alkyl group L is a C1-7 alkyl group, the b -(b -hydroxyethoxy)-ethyl, cinnamyl, 3-hydroxy-3-phenylpropyl or b -benzoylethyl group.  The compounds may be prepared by condensation of a halide L-X, where X is a halogen atom, with 3-methyl-4-alkoxycarbonyl-4-phenylpiperidine or methylation with formaldehyde and formic acid (when L is methyl). The secondary alcohols may be prepared by reducing the corresponding ketone and the compound wherein L is a b -benzoylethyl group by heating acetophenone with paraformaldehyde and a 3-methyl-4-alkoxycarbonyl-4-phenylpiperidine hydrochloride. Quaternary ammonium salts are prepared by reacting the bases with esters such as alkyl, alkenyl, aralkyl halides and toluene sulphonates or alkylene-halohydrins. The compound of the invention comprise both cis and trans-isomers depending on the relative positions of the 3-methyl and 4-ester groups, the isomers being termed 3a - and 3b -methyl compounds respectively. 3-Methyl-4-alkoxycarbonyl-4-phenylpiperidines are prepared by reacting N-(b -hydroxyethyl)-N-(b -hydroxypropyl)amine with 4-toluenesulphonyl chloride to give N-(b -hydroxyethyl)-N-(b -hydroxy-propyl) -4-toluenesulphonamide converting this to N-(b -chloroethyl)-N-(b -chloropropyl)-4-toluenesulphonamide with thionyl chloride, reacting this with phenylacetonitrile to give 1-(4-toluenesulphonyl)-3-methyl-4-phenyl-4-cyanopiperidine, separating this into the 3a  and 3b  isomers by extraction with methanol hydrolysing the cyano group to give 1-4-toluene-sulphonyl)-3-methyl-4-phenyl-4-carboxypiperidine committing this to an alkyl ester and removing the sulphonyl group by treatment with phenol and hydrogen bromide.
Patent GB-573526-A (GB)
Title: Improvements in loading apparatus
IPC: F41A9/50
Filed: 1940-09-20
Abstract: 573,526. Ordnance loading appliances. MASON, F. R., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Sept. 20, 1940, No. 14401. [Class 92 (i)] Electric motor-operated means for swinging a loading tray from a firing position clear of the breech to a loading position in line with the gun chamber, with or without similar means to effect the return movement, is combined with switching means to effect or permit operation of the motor or motors when the tray-locking means is released. Fig. 2 shows in full lines the invention applied to a known loading tray 1 shown in the loading position in dotted lines and provided with a bolt 5 operated by a finger piece 8 for locking the tray to its pivotal bearing member 3 in its loading and firing positions. As shown, electric motors A, B are provided for movement in each direction. Operation of the bolt 5 causes through a sliding rod 13 and a tumbler switch 16 the closing of the appropriate switch S<1> or S<2> for energizing the corresponding fields 27, Fig. 1, of the motors A or B by coils 23, 24 and contactors 25, 26. The motors A, B drive pinions 34, 35, of the type known under the Registered Trade Mark " Bendix ", which engage in turn a rack 33 on the loading tray. In the position shown the pinion 35 after moving the tray to loading position has passed out of engagement with the rack to permit a cam 31 on the tray to operate a switch S<4> to stop the motor. When the bolt 5 is again operated to release the tray for return to firing position, the motor pinion 34 engages the rack and, after moving clear, the cam 31 operates the switch S<3> to stop the motor. In a modification, the switches S<1>, S<2> are operated by press buttons only after a further switch in the motor circuit has been closed by movement of the locking bolt 5.
Patent GB-723367-A (GB)
Title: Photographic objective
Inventor: CARL-ZEISS-STIFTUNG
IPC: G02B9/12
Filed: 1952-06-09
Abstract: 723,367. Optical Objectives. ZEISS-OPTON OPTISCHE WERKE OBERKOCHEN GES. June 9, 1952 [June 12, 1951], No. 14525]52. Class 97 (1). A photographic objective with a relative aperture of at least. 1/3 5 consists of a simple front collective meniscus member with an n d  value of at least 1.64 and a front surface radius at least 0.3 times the objective focal length, a simple biconcave member and a collective rear member composed of elements of opposite refractive power and having a collective cemented surface convex to the front the air space between the front and middle members being smaller than that between the middle and rear members. Data are given for two examples for a relative aperture of 1/2.8.
Patent GB-334839-A (GB)
Title: Improvements in automatic telephone systems
IPC: H04Q1/32
Filed: 1929-05-09
Abstract: 334,839. Zoller, E., and Villiger, J. May 9, 1929. Automatic transmitters.-In automatic telephone systems, impulses representing the number of the calling party are sent to a wanted sub-station by a transmitter comprising a spring drum 26, Figs. 1, 4 and 6, which carries contact-operating pins and is wound up through a train of gearing connected to the usual dial transmitter, by which additional code messages may be transmitted. The dial 15 carries a spur wheel 16 geared to a spur wheel 17 which is fixed on the shaft 18 of the sender and carries a pawl engaging a ratchet wheel 20 loose on the shaft and adapted to be held bv a pawl 21. Two spring drums 25, 26 are loosely mounted on a sleeve 22 fixed to the ratchet 20, the drum 26 having groups of pins 62 representing the called subscriber's number and adapted to operate additional impuke springs 61, Fig. 1. The drums 25, 26 respectively are normally locked by pins 33, 50 engaging with levers 31, 49 independently mounted on the shaft 32. When the dial 15 is set by rotation in the direction of arrow a, a cam 29 on shaft 18 releases the holding lever 31. of drum 25 and the springs of the drum are tensioned by rotation of sleeve 22 and ratchet 20 which is held when the dial is released. Drum 25, although released during setting of the dial for further digits is prevented from rotating by frictional engagement at 53 with a gear wheel 35 which is driven in the reverse direction by gearing 93, 94, 37, the wheel 37 being fixed to a ratchet wheel 38 which has a lost motion connection with the shaft 18. A disc 39, Figs, and 7, on the shaft 18 moves idly through a small angle until a pin 45 and depression 42 engage an abutment 46 and pawl-lever 41 on a disc 40, after which the ratchet drives the reversing gear. When the dial 15 runs back, the drum 25 tends to turn in the direction of arrow b but further setting movement of the dial keeps it in its normal position. When however, dialling is completed, the drum 25 rotates and by engagement of pin 33 with an inclined face 106 or lever 49 raises the lever and releases pin 50 on drum 26 which then rotates in the same direction as drum 25 until pin 50 meets pin 33 which has been stopped against abutment 97 on lever 49. The lever 49 is connected with the switch hook 7 and is held out of action when the receiver is in place. The drums 25, 26 are controlled by a common governor 102 driven by a ratchet wheel 103 clutched to gear wheels 99, 100 engaging the drums. When the receiver is replaced both drums return to normal.
Patent GB-456979-A (GB)
Title: Spring heel for footwear
IPC: A43B21/30
Filed: 1935-05-18
Abstract: 456,979. Heels for boots and shoes. GRIMWOOD, G., Anchorage, Histon, Cambridge. May 18, 1935, No. 14570. [Class 17 (ii)] A spring heel for footwear, especially ladiesfootwear,comprises a heel shaped casing 1, preferably of light metal, in the upper part of which is a filling material 2. A screw 4 or similar securing means passes through the centre of a spring 6 contained in a device comprising two telescoping parts 3, 5, with vertical walls, into the filling 2. The upper part 5 of this device is fixed in relation to the casing 1 and the bottom 8 of the lower part 3 is recessed to receive a renewable heel pad 7.
Patent GB-510985-A (GB)
Title: Vacuum cleaner attachment for air filtration
IPC: A47L7/04
Filed: 1938-08-04
Abstract: 510,985. Vacuum cleaners; filtering air. THWAITES, A. C. Aug. 4, 1938, No. 14659. [Classes 8 (i) and 8 (ii)] [Also in Group X] The dust bag of a vacuum cleaner is removed' and replaced by a filter or purifier 5 containing charcoal, held in the position occupied by the dust bag, so that the cleaner can be used to remove toxic gases and smokes from an atmosphere. The filter shown comprises alternate beds of charcoal and wool separated by gauze partitions, with layers of linen gauze at the inner end, in a corrugated casing. By attaching a cover and hose, air may be drawn from the outside of a building into a room.
Patent GB-684944-A (GB)
Title: Method of making railway carriages
IPC: B61D17/04
Filed: 1951-06-21
Abstract: 684,944. Making rail vehicle bodies; welding by fusion. SOC. ANON. POUR L'INDUSTRIE DE L'ALUMINIUM. June 21, 1951 [June 21, 1950], No. 14777/51. Classes 83 (ii) and 83 (iv). [Also in Group XXXII] Light alloy bodies of railway carriages are constructed by assembling individual panel elements side-by-side to form the walls and the roof, adjacent edges of the panel elements being provided on the inside with profile sections fastened together by mechanical means invisible from the outside, and the adjacent edges of the panel elements being welded together from the outside. The railway carriage comprises a plurality of adjoining side sections 1 and end sections 2, a door panel 3 and roof panels 4, 5, 6. Each section has an outer light alloy panel 9 secured by spot welding to end profile members 13 interconnected by rivets and formed with cavities 10 and projections 12. The end of each plate 9 overlaps a cavity 10 in order that the free edges so exposed may be heated to a flux for the purpose of welding the joints which are then finished flush. In an alternative arrangement a transverse panel is inserted between the members 13, the projections 12 being omitted and replaced by the free edge of the transverse panel. The welding of the edges of the plates is preferably done under a protective gas.
Patent GB-617269-A (GB)
Title: Improved arrangement for indicating the rate of change of a physical effect
IPC: G01R1/30
Filed: 1946-05-16
Abstract: 617,269. Pressure meters. STANDARD TELEPHONES & CABLES, Ltd., and GARFIELD, W. L. May 16, 1946, No. 14811. [Class 37] An arrangement for indicating the rate of change of a D.C. potential comprises earthed capacitors C1 and C2, Fig. 1, connected to the grids of triodes V and V2 of a valve voltmeter. The potential under test is applied to terminals I and II, the latter earthed, the former connected to switch A. Control electrodes G1 and G2 are connected to change-over-switch B1 to enable them and the capacitors C1 and C2 to be connected alternately, after predetermined equal time intervals, to switch A. Switch A and switches B1, B2 and B3 are operated by relatively timed relays, not shown. The alternate charging of condensers C1 and - C2 to the voltage under test causes flow of anode current, the resultant potential drop across resistances R1 and R2 being measured by indicator M, the change of voltage during the predetermined time interval being indicated when the contacts B1, B2 and B3 change over. A modification is described in which the valves are pentodes. Alternatively, the test voltage is balanced at predetermined time intervals by two potentiometers operating alternately, the difference in their tapped voltages being indicated by a meter. In this embodiment, the positive terminal of the D.C. voltage is connected through switch All, Fig. 4, to the grids of triodes V11 and V21 whose anodes are connected together and to a source of anode potential. A potentiometer D.C. voltage source E, having its positive terminal earthed, is shunted by potentiometers R11 and R21, having sliders S1 and S2, which are alternately connected to the negative terminal of the test voltage by change-over switch B11. Indicator M measures the voltage difference between the two sliders, and has contacts B21 and B31 operating together with B11. The voltage tapped off by the sliders oppose the potential under test, the voltage difference produces current flow in the valve circuit which operates relay Z, which, in the position indicated effects the drive of a reversible motor U21 in one direction or the other to effect balance. After a predetermined time, switches B11, B21 and B31 change over and slider S1 is controlled by a similar motor U11.
Patent GB-114114-A (GB)
Title: Improvements in Grease Cup Lubricators and the like.
Inventor: HALL GEORGE NORMAN
IPC: F16N11/04
Filed: 1917-10-13
Abstract: 114,114. Hall, G. N. Oct. 13, 1917. Piston apparatus for discharging receptacles. In a lubricator or grease gun having a plunger operated by a spring or screw and capable of being withdrawn into a recess in the cap, the cap a is pivoted at e and is formed with a shoulder a' and a lip a<2> engaging above and below a lug d<1> projecting from the cup d. The lip a<2> may consist of the head of a rivet as shown, or may be cast integrally with the cap or pressed from sheet metal. The cap is locked in position when the plunger is within the cup. In a modification, a lug on the cap engages between a shoulder and a lip on the cup.
Patent GB-1457104-A (GB)
Title: Electrical rate fo change circuits
IPC: B60T8/88
Filed: 1973-03-28
Abstract: 1457104 Limiting rate of change WESTINGHOUSE BRAKE & SIGNAL CO Ltd 25 March 1974 [28 March 1973] 14851/73 Heading H3T The invention comprises a circuit including an input circuit including means responsive to an input signal for producing a D.C. supply to an amplifier and further means, for producing a control signal to the amplifier, which includes a constraining circuit for in response to a higher than prescribed rate of change of the envelope of an input signal reducing to a predetermined rate of change the control signal to the amplifier. An A.C. signal is fed via terminals 1, 2 to the series-connected primaries of current transformers T1, T2. The output from the secondary of transformer T2 is rectified by bridge rectifier 17, smoothed by capacitor 21 and limited in maximum value by Zener diode 22, and provides power supply for the amplifier comprising transistors 14, 15. The output from the secondary of transformer T1 is rectified by bridge rectifier 3 having resistor 4 as load, and is then smoothed by means of resistor 5 and capacitor 6. The smoothed voltage across capacitor 6 is applied over resistor 7 to the out-of-phase input of an auxiliary amplifier 8. The output of amplifier 8 feeds via adjustable resistor 9 and resistor 10 the input of a Miller integrator comprising amplifier 11 having negative feedback over a capacitor 12: if the input to amplifier 8 rises very rapidly it saturates and applies a step voltage to the Miller integrator, causing the output from this to rise at a predetermined rate. This output from the Miller integrator forms the input to the amplifier comprising transistors 14, 15 the control output from which accordingly rises at the predetermined rate. The output current causes a voltage drop across resistor 19 which is applied via resistor 20 to the input of amplifier 8, so that ultimately the input via resistor 7 is balanced out. The arrangement is intended for an electro-pneumatic braking system, the output at terminals 18 being applied to electro-pneumatic control means.
Patent GB-904135-A (GB)
Title: Improvements in or relating to a method and device for indicating the sequence of operations in machines operated by a flowing fluid
IPC: B21J7/24
Filed: 1961-04-25
Abstract: 904,135. Recording-apparatus. BOHLER & C O . A.G. GEB. April 25, 1961 [April 30, 1960], No. 14872/61. Class 106 (4). [Also in Group XXVI] The chronological sequence and intensity of operations of a steam or air-operated machine, e.g. a pressure hammer, are indicated by continuously measuring the pressure of the fluid discharged by the machine. Fluid is tapped from the exhaust conduit 1 of the hammer by means of a Pitot tube 3 and is led to a measuring instrument 4 in which the variations in pressure of the exhaust fluid is recorded on a tape. Any fluid leakage past the control valves or the piston may thus also be detected when the hammer is at rest.
Patent GB-1356737-A (GB)
Title: Process for producing penicillins and cephalosporins
Inventor: ISHIMARU T
IPC: C07D499/00
Filed: 1972-03-30
Abstract: 1356737 Preparation of penicillins and cephalosporins TOYAMA CHEMICAL CO Ltd 30 March 1972 [15 April 1971 (2)] 14941/72 Heading C2A The invention comprises a process for the production of penicillins and cephalosporins wherein salts of 6-aminopenicillanic acid and 7-aminocephalosporanic acid are reacted with trivalent phosphorus compounds of the general Formula III wherein R<SP>4</SP> is alkyl, haloalkyl, aryl, aralkyl, alkyloxy, haloalkyloxy, aryloxy, aralkyloxy or dialkylamino, R<SP>5</SP> is alkyl, haloalkyl, aryl, aralkyl, alkyloxy, aryloxy, haloalkyloxy, aralkyloxy, dialkylamino or halogen, or R<SP>4</SP> and R<SP>5</SP> may jointly form a ring and X is halogen, to protect the carboxylic group of the 6-aminopenicillanic acid or the 7-aminocephalosporanic acid and then reacting the product obtained with acylating derivatives of carboxylic acids and then solubilizing the product to remove the protective group or the carboxylic acid to form penicillins and cephalosporins respectively. The invention also comprises a producing a penicillin or cephalosporin of general Formula I wherein Y is V or VI and in which formulae R is hydrogen, halogen, azido, acyloxy, alkoxy, aryloxy or S-R<SP>1</SP> (R<SP>1</SP> is alkyl, aryl or heterocyclic group), each of R<SP>1</SP> and R<SP>2</SP> signifies hydrogen or substituted alkyl, aryl, aralkyl, aryloxy, cycloalkane or heterocyclic group, or R<SP>1</SP> and R<SP>2</SP> may jointly form a ring, R<SP>3</SP> is hydrogen, halogen, hydroxyl, amino, alkylamino, azido, cyano, alkyloxy, alkylthio, aryloxycarbonyl. aralkyloxycarbonyl or alkoxycarbonyl and n is 0 or 1 in which salts of 6- aminopenicillanic acid or 7-aminocephalosporanic acid having the general Formula II with trivalent phosphorus compounds of the general Formula III to protect the carboxyl group of the 6-aminopenicillanic acid or 7- aminocephalosporanic acid, then reacting the intermediate product with acylating derivatives of carboxylic acids of the general Formula VII wherein R<SP>6</SP> is K<SP>3</SP> or a protected amino group and then solubilizing the product to remove the protecting group.
Patent GB-371639-A (GB)
Title: An improved method for the manufacture of gelatine capsules for bottles and the like
IPC: B29D99/00
Filed: 1931-05-21
Abstract: Gelatinous capsules for bottles &c. are made by dipping forms into hot liquefied composition of 400 parts of gelatine and 100 parts of glycerine to which is added a mixture of about 0,015 to 0,2 parts of petroleum and about 0,03 to 0,04 of benzoin resin.  The capsules are hardened in a mixture of glycerine, a 3-5 per cent aqueous solution of formaldehyde and alcohol in the proportions of 1, 2, and 3 respectively.
Patent GB-745935-A (GB)
Title: Improved process for the preparation of -a-santonin
IPC: C07D307/92
Filed: 1953-05-29
Abstract: A process for preparing b -santonin comprises extracting the herbs selected from artemisian genus consisting of Artemisia monogyna W.K. and Artemisia salina Willd. with solvent and recovering b -santonin from the extract.  Suitable solvents are water or water-miscible solvents made alkaline with, for example, alkali metals or alkaline earth metals or their hydroxides, carbonates or peroxides which convert the b -santonin to the corresponding santonate.  b -Santonin is then precipitated by making the solution acidic.  The precipitate can be re-extracted with water-immiscible solvents such as benzene, ether, chloroform and/or trichlorethylene.  The extraction can also be effected with water-immiscible solvents such as benzene, ether, chloroform and/or trichlorethylene and the extract re-extracted with aqueous alkaline solutions as above, or by water-miscible organic solvents.  The aqueous extract can be purified by treatment with ionexchange resins.  For example phenolsulphonic acid formaldehyde resin removes impurities, while anion-exchange resins selectively adsorb the b -santonin itself, which may subsequently be eluted.  In examples (1) Artemisia solina Willd. is extracted with benzene. Benzene is evaporated and the residue is treated with barium hydroxide solution.  After neutralization with sulphuric acid the solution of barium b -santonate is filtered and treated with hydrochloric acid to precipitate b -santonin; (2) the residue from a benzene extract obtained as in (1) is taken up in alcohol, the solution is filtered, and the b -santonin which separates on cooling is recrystallized.
Patent GB-1537018-A (GB)
Title: Vehicle clutches
IPC: F16D13/69
Filed: 1977-04-12
Abstract: 1537018 Friction clutches AISIN SEIKI KK 12 April 1977 [23 April 1976] 15055/77 Heading F2C In a diaphragm spring clutch in which a presser plate 104 is supported by leaf springs 105 fixed to a flywheel 102, coil springs or leaf springs 112 having flexible arms 112b are arranged to urge the presser plate 104 away from the flywheel 102 upon disengaging the clutch. Such springs 112 are spaced evenly around the flywheel 102, and radially outwardly of a clutch disc 110 connected to an output shaft 109. The arms 112b of the springs 112 may be arcuate or provided at their ends with rubber cushions (213) (Fig. 4, not shown).