baber/WOPTO huggingface dataset:
Patent GB-1008468-A (GB)
Title: N-substituted 6-amino penicillanic acids
IPC: C07D499/00
Filed: 1962-03-22
Abstract: N - substituted 6 - aminopenicillanic acids are prepared by reacting 6-aminopenicillanic acid with silylating agents of general formula <FORM:1008468/C3/1> wherein R1,R2 and R3 which may be the same or different are alkyl or aryl groups and X is hydrogen, halogen, the group -NH-Si­(R1)(R2)(R3) or the group -N=(R4)(R5) wherein R4 and R5\t which may be the same or different are hydrogen or alkyl groups. Preferably the reaction takes place in a non-proton active non-polar solvent and, in the absence of a proton active compound, at temperatures between room temperature and the boiling point of the silylating agent. Specified silylating agents are trialkylchlorosilanes, used in the presence of ammonia, and trialkylsilanes which are used in the presence of a catalyst, e.g. palladium or H2PtCl6.  The examples describe the reaction of 6-aminopenicillanic acid with an excess of hexamethyldisilazane to give N-trimethylsilyl-6-aminopenicillanic acid trimethylsilyl ester.ALSO:Derivatives of 6-aminopenicillanic acid are prepared by reacting 6-aminopenicillanic acid with silylating agents of general formula <FORM:1008468/C2/1> wherein R1, R2 and R3 which may be the sam or different are alkyl or aryl groups and X is hydrogen; the group -NH-Si(R1)(R2)(R3) or the group -N(R4)(R5), wherein R4 and R5, which may be the same or different are hydrogen or alkyl groups, dissolving the product in excess of the silylating agent or in a non-polar solvent, acylating the silylated product and then removing the silicon containing groups by hydrolysis.  Specified acylating agents are acid halides, acid anhydrides, ketenes, iso-cyanates and isothiocyanates.  Acylation can take place in excess of the silylating agent without isolating the silylated 6-aminopenicillanic acid.  Preferably an acid chloride is used in presence of a compound capable of fixing hydrogen chloride. In the examples, a solution of N-trimethylsilyl-6-aminopenicillanic acid trimethylsilyl ester in hexamethyldisilazane is reacted with (1) phenylacetic acid chloride in the presence of triethylamine at room temperature to 40 DEG  C.; hydrolysis of the product with water giving penicillin G; and (2) truxillic acid chloride in the presence of triethylamine.  The product was converted into truxillic acid-di-penicillin by exposure to the moisture in the air.
Patent GB-1496009-A (GB)
Title: Process for increasing the electrical conductivity of synthetic polymer articles
IPC: D06Q1/04
Filed: 1975-03-17
Abstract: 1496009 Laminates RHONE-POULENCTEXTILE 17 March 1975 ]18 March 1974] 11063/75 Addition to 1372656 Heading B5N [Also in Divisions B2 C7 D1 and H5] A needle-punched non-woven web containing nylon 66 fibres and which contains 0À1% of undyed nylon 66 fibres whose conductivity has been improved by deposition of cupric salts (see Divisions D1-D2), is needle-punched into a natural fibre underlay web and coated with an acrylic resin containing a fatty acid condensation product. The coated composite product may be used as a floor covering.
Patent GB-1212401-A (GB)
Title: Substituted thiol carbamates and herbicides containing same
IPC: C07C333/02
Filed: 1968-03-07
Abstract: 1,212,401. Substituted thiocarbamates. BADISCHE ANILIN- & SODA-FABRIK A.G. 7 March, 1968 [9 March, 1967], No. 11075/68. Heading C2C. [Also in Division A5] The invention comprises thiocarbamate derivatives of the formula wherein R<SP>1</SP> denotes an aliphatic hydrocarbon radical and R<SP>2</SP> denotes an aliphatic hydrocarbon radical which may optionally contain one or more halogen atoms and/or hydroxyl groups as substituents. These compounds are prepared by treating a carbamyl chloride of formula with a mercaptan of formula H-S-R<SP>2</SP>. The preparation of compounds in which R 1  is methyl, propyl, isopropyl and butyl, and R 2  is methyl, ethyl, isopropyl, butyl isobutyl, hydroxyethyl, 2,3 - dichloroallyl and 2,3,3 - trichloroallyl is described.
Patent GB-128315-A (GB)
Title: Improvements in Hand or Rifle Grenades.
Inventor: FRUGIER RENE
IPC: F42B30/04
Filed: 1917-08-01
Abstract: 128,315. Frugier, R. March 29, 1917, [Convention date]. No Patent granted (Sealing fee not paid). Barrels.-For discharging a grenade from a rifle, a funnelshaped device F is used, having an extension F<1> adapted to fit on the muzzle. The funnel fits frictionally within a cylinder G attached to the grenade, and is left behind on the rifle-barrel when the projectile is discharged.
Patent GB-1457043-A (GB)
Title: Recovery of gaseous components from scrubbing liquids
IPC: C10K1/16
Filed: 1974-03-13
Abstract: 1457043 Separating gases LINDE AG 13 March 1974 [14 March 1973] 11087/74 Heading B1L A process for the recovery of one or more required components of a crude gas absorbed by a scrubbing liquid during the removal of an unrequired component or components of the crude gas by scrubbing the crude gas under pressure with a scrubbing liquid comprises the steps of reducing the pressure on the charged scrubbing liquid, stripping said required component or component from the liquid using a gas consisting exclusively of one or more components of the crude gas and essentially free from both said required and said unrequired components, and finally regenerating said scrubbing liquid by removal of said unrequired component or components therefrom. Thus one or more required components e.g. CH 4 , are recovered from methanol used to wash a crude gas e.g. a mixture of H 2 , H 2 S, CO 2 , CO, N 2  and CH 4 , to remove CO 2  and H 2 S, by scrubbing the mixture in 3 with the methanol from line 7 so that substantially pure H 2  is drawn off through line 8, which is then used to stop the methane in stripper 9 from the charged methanol from scrubber 3 which is expanded into stripper 9, and the methanol is then passed to steam heated regenerator 15  where H 2 S and CO 2  (i.e. unrequired components) are driven off, and the regenerated methanol returned via 7 to scrubber 3.
Patent GB-182951-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H19/10
Filed: 1921-04-18
Abstract: 182,951. Butlers, Ltd., and Reeves, A. April 18, 1921. Switches without quick action; handles.-A switch for use in ignition circuits &c. comprises a rotating spindle a secured in a cup-like casing k with a flanged cover b. Axial displacement of the spindle a is prevented by shoulders formed thereon, the spindle being provided with a handle c. On the spindle a is secured an insulating disc f carrying an outer contact ring h secured thereto by stamped-out tongues h which pass through the disc and are bent outwardly, the ring h having two diametrical contact projections h<2> which co-operate with contacts ! i in an insulating disc disposed within the casing k. The disc f also carries a torque-transmitting member g secured thereto by bent-over tongues g<2>, which are staggered in relation to the tongues h<1>. The member g has two inward projections g<2> which engage slots a' in the spindle a, a spring e pressing the rotary disc f toward the fixed disc j. The disc f is bent to keep the adjacent portion of the contact ring g clear of the fixed contacts i when the switch is in the " off " position in which the contact projections h<2> are held in recesses j<2> of the fixed insulating disc j. In a modification, Fig. 6, the handle is in the form of a flat removable key m which on being inserted through a slot m<1> in the cover depresses the spring e through the loose washer d until the forked end of the key engages the slots a' in the spindle a, when the key m can be turned. The spindle a in this form has reduced ends which pass through central perforations of the casing k and the cover b, the key slots m<1> comprising narrow extensions of the latter perforation.
Patent GB-1438044-A (GB)
Title: Electrical contact material
IPC: H01H1/0237
Filed: 1974-03-14
Abstract: 1438044 Internally oxidized silver alloy CHUGAI DENKI KOGYO KK 14 March 1974 [22 March 1973 20 July 1973] 11348/74 Heading C7A An alloy comprising In 6-12% and Sn 0.5-5%, the balance being Ag is formed into a desired shape and internally oxidized to produce an electrical contact material. When the Sn content is over 2.5% there is added to the alloy less than 0.5% of an iron group metal (i.e. Co Fe or Ni) although this addition may be made for other Sn contents.
Patent GB-624455-A (GB)
Title: Improvements in liquid or gas measuring and dispensing apparatus
IPC: B67D7/08
Filed: 1945-05-05
Abstract: 624,455. Dispensing liquids. S.A.T.A.M. SOC. ANON. POUR TOUS APPAREILLAGES MECANIQUES. May 5, 1945, No. 11495. Convention date, Aug. 19, 1941. [Class 116] [Also in Group XIX] . Apparatus for dispensing fluid comprises a measuring device, a control device for determining the amount to be delivered, a setting means for the control device, and a differential gear, one member of which is driven by the measuring device, other members (or another member) thereof being driven by the setting means and driving the control device. In one form, Fig. 1, the control device 2 is set by a setting handle 3 driving one sun wheel 43 of the differential 4, the planet cage 44 of which is geared to the control device. The other sun wheel 41 is held stationary during setting, but during delivery the volume-measuring device 1 drives the said other sun wheel 41, the first-mentioned sun wheel 43 being locked by means not shown. The other wheel 41 thus drives the planet cage 44 to return the control device to zero, delivery being thereupon stopped by means not shown. In a modification, the setting handle 3 is geared to the planet-wheel cage, the sun wheels being connected to the volume-measuring and control devices respectively. In another arrangement, the setting handle has to be pushed along its shaft to engage a clutch to connect it to the control device, this action removing a detent which normally locks the planetwheel cage. In a further modification, Fig. 4, two differential gears 44, 44<SP>1</SP> are provided. When the control device is being set by the setting handle 3, the cage 44' of the upper gear is, by means not shown, locked and the cage 44 of the lower gear is freed. Before the volume-measuring device 1 is operated, the upper cage is freed and the lower one locked. Specification 624,454 is referred to.
Patent GB-1187553-A (GB)
Title: Self-Bailing Boat
Inventor: UTVIK ARNE INGEMAR
IPC: B63B43/12
Filed: 1968-03-08
Abstract: 1,187,553. Self-bailing boats. A. I. UTVIK. 8 March, 1968, No. 11510/68. Heading B7M. A self-bailing boat, the cabin floor 9 of which is located higher than the waterline 2, has buoyancy even when completely water-filled, and at least one water outlet opening 13 (the embodiment described has one on either side of the centre line of the boat) provided with a one-way valve and located above the floor 9 so that water thereon flows towards the outlet for subsequent automatic discharge therefrom. The valve comprises a flap 15 formed with a head 27 about which it hinges, the head moving vertically in guides 17, 19 in the transom 7 and the lower edge of the flap being slidable along the upper faces 25 of runners 23 located between the guide plates 17, 19. The space 11 between the boat bottom 5 and the floor 9 is filled with foamed plastics material.
Patent GB-104461-A (GB)
Title: Improvements in or relating to Sulphuric Acid Chambers.
Inventor: HARRIS JOHN
IPC: C01B17/84
Filed: 1916-08-15
Abstract: 104,461. Harris, J., and Thomas, D. H. Aug. 15, 1916. Sulphuric acid.-In a sulphuric-acid chamber in which the gases are admitted near the bottom, directed round the walls and withdrawn at the centre of the top, a central hollow column 7 is provided, upstanding from the pan and having an open top forming the exit for the gases. Sprays or jets 1, 6 direct cooling-liquid upon the curtain 2 and the outside of the column 7. The gases enter by a tangential pipe 8. The column 7 may be packed and fed with acid so as to act as an absorber, this arrangement being made preferably only in the later chamber or chambers of a system.
Patent GB-115295-A (GB)
IPC: A61M3/00
Abstract: 115,295. Anderson, C. C. May 17, 1917. Attaching fittings.-In a medical syringe of the type comprising a glass or silica barrel cemented or soldered within a metal end piece, the metal fitting a is of substantially larger diameter than the barrel b, and a split ring c of metal or other material is placed between the two parts and becomes embedded in the cement or solder d. The invention is applicable generally to the connexion of glass or silica tubes to metal fittings.
Patent GB-591391-A (GB)
Title: Improvements in or relating to hydraulic and like riveting machines
IPC: B21J15/20
Filed: 1945-05-07
Abstract: 591,391. Flanging ; riveting. FAIREY AVIATION CO., Ltd., and MATTHEWS, A. E. S. May 7, 1945, No. 11620. [Class 83 (iv)] In flush riveting in a hydraulic or like squeeze riveter, dimpling and riveting are effected in a single operation. The rivet 32 is placed in a hole in plates 33, 34 and the machine positioned with a fixed dolly 38 backing the rivet. Axial movement of a dolly 12 through a spring 19 moves a presser member 29 which co-operates with a member 39 to clamp and slightly dish the plates and to dimple the hole by forcing the plates against the rivet countersink. When the member 39 contacts the dolly 38 the presser 29 is held axially and the dolly 12 is advanced relatively thereto to head the rivet. Motion of the dolly 12 is controlled by a bleed valve 26 regulating the escape of oil from the front of a piston 13 formed on the dolly 12.
Patent GB-1426134-A (GB)
Title: Buffer
IPC: F16F1/40
Filed: 1974-03-15
Abstract: 1426134 Buffers FRIED KRUPP GmbH 15 March 1974 [17 March 1973] 11663/74 Heading F2S A buffer comprises a plurality of compressible members of cellular material 1 disposed in axial alignment in a tube 2 with peripheral clearance, intermediate members 5 disposed between adjacent compressible member 1 and having cavities at either side into which the ends of the compressible members 1 are fitted, a plate 3 closing one end of the tube and having a cavity into which the adjacent end of a compressible member 1 is fitted, and a plunger 8 slidable in the other end of the tube and having a cavity into which the adjacent end of a compressible member 1 is fitted. The intermediate members may have antiextrusion rings 9, Fig. 2 (not shown), and may be formed from two cups 10, Fig. 3 (not shown), joined at their bases. Energy may be absorbed by friction between the compressed members 1 and the walls of the tube 2.
Patent GB-494496-A (GB)
Title: Control device for aircraft
IPC: B64C13/24
Filed: 1938-04-19
Abstract: 494,496. Controlling aircraft; electric control systems. ARADO FLUGZEUGWERKE GES. April 19, 1938, No. 11670. Convention date, June 7, 1937. [Class 4] [Also in Group XXXVIII] The velocity-ratio of the transmission between the control stick and an aircraft elevator is varied by means inserted in the transmission, adjustable by the dynamic-pressure due to motion of the craft, affording a rigid connection between the stick and elevator and permitting at all pressures the maximum movement of the stick possible at the lowest pressure. As shown, the elevator is divided into parts 2, 3, the part 2 being directly adjustable by movement of the stick 1 acting through links 16, 13, 12, 20, 21, levers 15, 19 and arms 23. The links 12, 13 are connected to a slotted link 4 pivoted about an axis 6. The end of a link 5 is adjustable in the slot and actuates the elevators 3 through links 26, 27, 32, 33, levers 24, 29, 30, 31 and arms 34, 35. A pitot-tube 36 is connected by a pipe 38 to an expansible-chamber 40 mounted in a chamber 39 connected to the static-pressure, existing at the tube 36, by a pipe 37. Expansion, due to rise of pressure, of the chamber 40 through a link 41 rotates one element 9 of a switch device, relatively to a second element 10 to close the circuit through contacts 53, 57, 55, 58 and set in motion an electric motor. The motor through gearing rotates a nut 66 to cause axial movement of a screw-threaded rod 49 connected to a triangular element 11. The element 11 is rotatable about the axes of the elements 9, 10 and is connected to the element 10. The member 11 is connected through a link 51 to the end of the link 5 and moves it in guides in the member 4. Due to the connection between the elements 10, 11 the element 10 follows-up the member 9 to break the circuit in the adjusted position. Reduction of the dynamic-pressure causes deflation of the chamber 40 and the consequent movement of the element 9 causes reversal of the motor and restoration of the parts towards their normal position. The elevator may be undivided.
Patent GB-273254-A (GB)
Title: Radio receiving apparatus
IPC: H01Q1/24
Filed: 1927-05-03
Abstract: 273,254. Federal Telegraph Co., (Assignees of Kolster, F. A.). June 24, 1926, [Convention date]. Receiving - sets, construction of. -A frame aerial 20 of relatively large size is arranged to be drawn outwards from its associated receiving-set, i.e. from the dottedline into the full-line position shown in Fig. 1. It is then capable of rotary movement about a tubular member 14, Fig. 4 for directional reception. The frame windings pass through a hole 21 into the tubular post 14, and thence through the slide 11 to a terminal block 4 on the set. The sliding member 11 is supported by brackets 6 bolted to the bottom of the set, its outward travel being limited by means of a spring latch 9.
Patent GB-646201-A (GB)
Title: Improvements in or relating to cooling systems for internal combustion engines
Inventor: DACK WALTER SYDNEY
IPC: F01P3/02
Filed: 1947-05-02
Abstract: 646.201. Cooling cylinders. THORNYCROFT & CO., Ltd., J. I. May 2, 1947. No. 11876. [Class 7(ii)] [Also in Group XIII] In a cooling system in which the cooling fluid passages in the cylinder head 9 have no direct communication with those in the block 8, and the cooling fluid is pumpcirculated to both sets of passages from a single source so that the head is maintained cooler than the block, a thermally-operated valve 6 at the outlet from the block restricts flow therethrough. As shown, a single pump 3 delivers cooling fluid from the radiator 1 by way of branches 4a, 4b to the block and head respectively. In a modification two pumps, having a common axial inlet, are provided to supply the head and block respectively and a byepass from the block outlet returns fluid to the block pump for limited circulation when the valve 6 is closed. A further modification shows series flow first through the head 9 and then through the block 8, a byepass from the connection between the head and block to the radiator inlet being controlled by a second thermally-operated valve to permit limited circulation through the head when the valve 6 is closed.
Patent GB-108888-A (GB)
Title: Improvements in Eyeguards or Shields.
Inventor: RYLAND CHARLES FREDERICK
IPC: G02C3/02
Filed: 1916-08-23
Abstract: 108,888. Ryland, C. F. Aug. 23, 1916. Accessories.-Eye-guards or shields are clipped or otherwise fitted to a cap or helmet. A shaped portion secured to the underside of the peak or brim coacts with a separate shield portion or portions, or alternatively is shaped to form the shield c itself, as in Fig. 1, for which purpose sockets d<2> upon the shield are adapted to slide upon arms d<1> so secured to the hat that the curved edge c<1> of the shield hangs at some distance from the face, but fits closely to the helmet &c. In all forms the outer edge c<2> is constructed with a groove m, in order to carry away dust and to oppose a smooth surface to the face. Fig. 4 is typical of constructions having a flat portion a secured to the under surface of the brim, &c., by split pins or rings passing through eyelets b, and a depending flat portion c, cut as before to suit the nose, connected to the brim portion by rings e passing through eyelets d, f and acting as hinges. The depending portion may be bowed to conform to the face, either by the provision of a convex edge g upon the brim portion, or preferably by giving it a similar edge c', and it may be held by a central catch. According to modifications the depending part is made in two overlapping sections, which may be turned up against the brim portion when not in use, pressbutton fastenings being provided.
Patent GB-911625-A (GB)
Title: Improvements in or relating to indicating, recording or control apparatus
Inventor: WORSWICK BERNARD AUGUSTINE
IPC: G01R27/02
Filed: 1958-04-15
Abstract: 911,625. Measuring electrically. BAILEY METERS & CONTROLS Ltd. April 13, 1959 [April 15, 1958], No. 12035/58. Class 40 (1). [Also in Group XIX] A variable resistor comprises a contact member making contact along a straight line with the resistor and rotating about a fixed axis and a pivoted indicator, the inclination of this indicator to a fixed straight line being the same as that of the contact member to the contact line. As shown in Figs. 1 and 3, a servomotor 18 is mounted on a plate 19 which is sealed to a base-plate 1 by means of " Araldite " (Trade Mark). The motor drives through gearing 17 a vertical shaft 11 which moves a conducting portion 7 of a wiper arm 11 along the edge of a Manganin resistor 2. At the same time it moves a pointer 19 on the surface of a chart 50. The pointer is periodically operated by a chopper bar to mark the chart which is fed along at constant speed. The servomotor also drives through shaft 16a a viscosity damper consisting of a moving cup 23 rotating in a fixed cup 20. The whole of the mechanism below the base-plate 1 rotates in oil contained in a casing 45. Resistor 2 may be wound on a cylindrical former, the wiper traversing a generator. The invention is described with reference to indicating the value of a condition responsive resistor Rx forming an arm of a bridge circuit of which resistor 2 forms the other two arms. Amplifier 53 responds to unbalance to control the wiper of servomotor to position the wiper and rebalance the bridge. The travel of the wiper is limited by screws 41 carried on radial arms on shaft 11 and engaging recesses in the motor housing.