baber/WOPTO huggingface dataset:
Patent GB-799030-A (GB)
Title: Improvements in or relating to process of preparing 1, 3-di-substituted pyrrolidine compounds and the compounds resulting therefrom
Filed: 1956-09-14
Abstract: The invention comprises 3-substituted pyrrolidine compounds having the formula: <FORM:0799030/IV (b)/1> and acid addition salts and quaternary ammonium salts thereof, wherein X is a hydroxyl group or a halogen atom, preferably chlorine, and wherein R is an alkyl, alkenyl, aryl or aralkyl radical, preferably methyl, ethyl, n-propyl, isopropyl, benzyl, phenyl, allyl or butyl.  The N-substituted-3-pyrrolidyl-methyl alcohols may be prepared by reacting esters of itaconic acid with an organic amine RNH2 to form an intermediate N-substituted-3-carbalkoxy-5-pyrrolidinone by ring closure and reducing the latter with a strong reducing agent, such as lithium aluminium hydride, to produce the desired carbinol.  Suitable amines are methylamine, ethylamine, n-propylamine, isopropylamine, allylamine, butylamine, aniline or benzylamine. The itaconic acid esters employed may be the dimethyl, diethyl, di-n-propyl, di-isopropyl, or dibutyl.  The corre-sponding halides may be obtained by reacting the carbinols with a thionyl halide, e.g. thionyl, chloride, bromide or iodide, to produce the N-substituted-3-pyrrolidylmethyl halides.  The carbinol or halides may be converted into acid addition salts by treatment with organic or inorganic acids such as hydrochloric, hydrobromic, hydroiodic, sulphuric, phosphoric, maleic, acetic, citric, succinic or tartaric acid.  Suitable quaternary ammonium salts are formed by the addition to the basic compounds of alkyl or aralkyl esters of inorganic acids or organic sulphonic acids, such as methyl chloride, bromide or iodide, ethyl bromide, propyl chloride, benzyl chloride, benzyl bromide, methyl sulphate, methyl benzene sulphonate or methyl-p-toluene sulphonate.  In an example, an anhydrous methanol solution of dimethyl itaconate is added with stirring to a solution of ethylamine in anhydrous methanol with cooling to maintain a temperature of 5 \sB 2 DEG  C.; the mixture is then allowed to warm up to room temperature and after standing the solvent is removed and the residue fractionated; an ether solution of the 1-ethyl-3-carbomethoxy-5-pyrrolidinone so formed is added to an ether solution of lithium aluminium hydride at such a rate as to maintain moderate refluxing and then the refluxing is maintained for 2 hours; the 1-ethyl-3-pyrrolidylmethyl alcohol is recovered and may be treated in chloroform with hydrochloric acid gas and then with thionyl chloride while refluxing the mixture; 1-ethyl-3-pyrrolidylmethyl chloride is recovered from the reaction mixture.  The N-substituted-3-pyrrolidylmethyl alcohols may be esterified with organic acids, such as benzilic acid to produce compounds having high antispasmodic activity as described in Specification 799,032.  The halides may be reacted with an amine, such as phenothiazine, as described in Specification 799,031.
Patent GB-1161295-A (GB)
Title: Heat Exchanger
IPC: F28F9/02
Filed: 1967-06-19
Abstract: 1,161,295. Tubular heat exchangers. BORGWARNER CORP. 19 June, 1967 [29 June, 1966], No. 28182/67. Heading F4S. To avoid galvanic corrosion when an aluminium header is secured to a copper or brass tube plate in a heat exchanger used in the cooling system for an internal combustion engine the edge 38 of the flange 37 of the tube plate 31 is enclosed in a resilient seal 57 to avoid contact between the header and the tube plate. Bolts 87 compress the seal between the header and a sealing ring 81 and are placed in a T- shaped slot inside the periphery of the header thereby eliminating the usual external securing flanges and also reducing the overall width of the heat exchanger. A baffle plate 49 having holes 51 is provided in the header. The seal 57 may be of neoprene or a plastic and is electrically non-conductive.
Patent GB-784521-A (GB)
Title: Improvements in or relating to indicating devices
IPC: G09F3/20
Filed: 1954-09-30
Abstract: 784,521. Labels. HAMPEL, B. Sept. 30, 1954 [Nov. 6, 1953], No. 28205/54. Class 73 A labelling device comprises a disc or plate 1, Fig. 5 slotted at 2, 3 or provided with a window opening 9, Fig. 7 behind which is secured a part 10 defining a guide channel 11, and a band or tape 4 carrying inscriptions 5 on segments separated by scored or dotted lines 6 to permit any particular segment and its inscription to be readily separated from the rest of the tape. The tape is passed through the guide channel or through the slots as shown in Fig. 5 to cause the apparition of a selected inscription, the segments on either side are then cut and torn off and the parts of the selected segment at the rear of the disc or plate 1 then secured thereto by adhesive adjacent the slots or guide channel. In another form the plate 1, Fig. 12, is formed with a recess 12, the slots 2, 3 being provided in the edges of the recess. In a further modification the plate 1 has a window opening 13, Fig. 14, wherein is arranged a part 14 of transpadent material having a guide channel 16. In another modification the guide channel may be defined by cut out portions 28, 29, Fig. 25 in two similar parts 26, 27 comprising the plate 1.
Patent GB-989243-A (GB)
Title: Production of pentaerythritol and dipentaerythritol
IPC: C07C43/13
Filed: 1961-08-03
Abstract: A product containing both pentaerythritol and dipentaerythritol is obtained by reacting together formaldehyde, acetaldehyde and a base by first forming a reaction mixture in which the process is substantially complete and then adding further quantities of the reactants at such a rate that the concentrations of free aldehydes in the mixture do not increase substantially. The formaldehyde is used as an aqueous solution of 5-12% by weight concentration. Preferably the molar ratio of formaldehyde to acetaldehyde is from 4:1 to 10:1 and the base used is sodium or potassium hydroxide.  The preferred temperature range for carrying out the process is 50-90 DEG  C.
Patent GB-289348-A (GB)
Title: Improvements in or relating to closures or stopper caps for use on jars, bottles, or other containers
IPC: B65D41/12
Filed: 1927-01-18
Abstract: 289,348. British Sure Seal Co., Ltd., and Huxley, J. H. Jan. 18, 1927. Divided on 289,136. Capsules and like closures. - A reseal closure cap for bottles, jars, &c., having a flange 2, Fig. 1, constructed with curls 3 adapted to engage under a ledge or shoulder about the mouth of the container is strengthened, to resist distortion when the cap is removed, by corrugating the flange or the upper part of the closure or both. The corrugations may comprise a vertical milling 4 on the flange or horizontal corrugations thereon or a rib at the top of the flange. As shown in Fig. 10 the top 1 of the cap is stepped. In another form, the curls 3, Fig. 7, do not stand out from the cap and are formed intermediate the flange ; a jointed sealing strip 30 engages a separate locking shoulder 5<b> to lock the cap on the bottle mouth. The closure may be composite, a depression 1<a>, Fig. 9, in the top 1 of the cap engaging either a domed disc on the bottle mouth or a well stopper 1<c> thereon. To facilitate removal of the closure, a crossed wire loop 26, Fig. 10, is associated with one of the curls, or, if the closure is composite, a loop of string is secured to the inner disc. The disc may be formed of pasteboard and tagger tin or tagger tin alone, a tab being provided at the edge of it below one of the curls 3. Where a packing ring is employed, the removal tab may be formed on it. Alternatively, such a tab may be cut out of the top of the closure. The closure may comprise an annulus instead of a closed cap or quadrants may be cut out of the top thereof to expose portions of a paper &c. disc within it. The caps are made from a sheet of metal to which a sheet of absorbent paper has been adhesively secured. Specifications 10419/14, 142,384, 159,684, 169,337, 205,691, and 265,265 are referred to.
Patent GB-802486-A (GB)
Title: Corneal contact lenses
IPC: G02C7/04
Filed: 1955-10-04
Abstract: 802,486. Contact lenses. CARLE, J. T. DE. Oct. 1, 1956 [Oct. 4, 1955], No. 28261/55. Class 97(1) In a corneal contact lens, the peripheral part 3 is stepped relatively to the centre part 2 so that only the peripheral part 3 will contact the cornea 1 and there will be complete clearance between the lens and eye over the whole of the pupil area of the cornea. The peripheral part 3 may be built up to a greater thickness than centre part 2 and may be provided with radial grooves. The centre part may be provided with one or more ventilation holes. Specification 731,155 [Group V] is referred to.
Patent GB-895300-A (GB)
Title: Spring feeder for feeding sheets
IPC: B65H3/24
Filed: 1958-09-03
Abstract: 895,300. Feeding warped boards. S. & S. CORRUGATED PAPER MACHINERY CO. Inc. Sept. 3, 1958 [Sept. 6, 1957], No. 28262/58. Class 117. Warped boards are discharged from a stack through gap 16 by spring pickers 72, the pickers being carried by respective plates 66 hinged at 65 to carriage 60. The latter is reciprocated by crank wheel 52 via linkage 50, 54, 56, 57. The rear ends of plates 66 are carried slidingly by rear guide 14. Rear guide 14 is carried by pivoted arms 18, 19, which may be raised by screw and nut means 28, 29 so that supports 30, which form part of rear guide 14 and which carry the trailing edges of the boards, may tip the boards forward till they are at the correct angle for discharge through gap 16.
Patent GB-516764-A (GB)
Title: Improvements in or relating to hydraulic motors
IPC: F03C1/40
Filed: 1938-05-04
Abstract: 516,764. Hydraulic motors. WAHLMARK, G. A. May 4, 1938, No. 28273/39. Convention date, Feb. 7, 1938. Divided out of 516,721 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 18. 1938. [Class 69 (ii)] A hydraulic motor is constructed with a number of pistons reciprocable in cylinders formed in a block 20' to actuate a shaft 12 by acting on a swashplate 13 one set of pistons acting to drive the shaft at slow speed and another set at high speed, and the flow of liquid is controlled by a tubular valve 74 surrounding the shaft 12. Between the liquid inlet 14 and outlet 15 is arranged a valve 16 of the kind described in Specification 516,721 which connects the cylinders 26 alternately to the inlet and outlet. For slow speeds the valve 74 is set so as to cause the liquid to enter the left-hand end of each of the cylinders 26 and to act on a piston 31 which in turn moves a piston rod 32 to the right and causes a conical end 32<1> of the rod to act on the swashplate. For high speeds the valve 74 is set so that the liquid enters each chamber 26 via ports 77, 73 and acts on the reverse side of the piston 31 and maintains it in a stationary position. The piston rod 32 then acts as a piston and owing to its smaller area it is moved at a greater speed assuming a constant inflow' The piston 32 is guided by a bushing 33, which is formed with a cut-away part 33a forming a guide for the hollow cylinder 31 when this is operative. In a modification, Fig. 6, the swashplate 235 is pivoted about a pivot 285 arranged below the axis of the shaft 212, and the speed of the motor may be varied by angular movement of the plate 235. This is preferably effected by means of an axially movable wedge or cam 286' which acts on a roller 288 mounted in the plate. The cam 286' is moved by means of a screw 290 engaging a thread in a ball 291 supported in a socket 292 on a lever 293 having a ball-and-socket connection with a sleeve 294 which slides on the shaft 212 and operates the cam 286<1>. Specification 516,565 also is referred to.
Patent GB-288103-A (GB)
Title: Improvements in or relating to sheet materials of a vitreous, transparent or translucent character
IPC: B60J1/20
Filed: 1927-10-25
Abstract: 288,103. Baxter, E. G. Oct. 25. 1927. Windscreens. - A vitreous, transparent, or translucent sheet for a windscreen is formed with transverse or inclined perforations a arranged in rows b, c, d, for giving clear vision. Drainage channels may connect the openings and lips may be formed at the apertures to lead away condensed moisture. An unperforate sheet may be combined with the screen and plated behind same.
Patent GB-427027-A (GB)
Title: Improvements in and relating to hats and like head-gear
IPC: A42C5/02
Filed: 1933-10-13
Abstract: 427,027. Hats &c. AKI, S., Summit, Bittacy Park Avenue, Mill Hill, London. Oct. 13, 1933, No. 28374. [Class 63] Ventilating.-A hat or like article of headwear comprises a headband formed from material woven from paper threads. The headband is secured within the hat, preferably, so that it can readily be removed for cleaning. As shown in Fig. 1, the headband is attached to a tape 6 which is secured to a band 4 of grease-proof material by means of a flexible adhesive strip 7 of serrated form. In a modification, Fig. 2, the headband 3 is in the form of an insertion between the crown and the brim. It is stated in the Provisional Specification that the headband may be moulded from paper pulp.
Patent GB-1029088-A (GB)
Title: Control system
IPC: G05B19/35
Filed: 1963-07-18
Abstract: 1,029,088. Transistor oscillator circuits. PERFECT CIRCLE CORPORATION. July 18, 1963 [July 25, 1962], No. 28422/63. Heading H3T. [Also in Divisions G1 and G3] A transistor oscillator, having both positive and negative feedback, employs a notch tuning network 79 as a frequency-determining element and an incandescent lamp 80 for amplitude stabilization. A grounded collector stage is formed by transistors 81, 82 and the forward signal path is from an emitter of the transistor 81 through the lamp 80 and a capacitor 78 to the emitter of an NPN transistor 83, the gain being adjusted by a potentiometer 84. The negative feedback path comprises the notch tuning network 79 and a grounded collector transistor 85 connected to the base of the transistor 83. The notch timing network 79 comprises inductors 87, 90 and mechanically-coupled variable resistors 46, 47, forming transducers of a machine tool positioning system (see Divisions G1 and G3).
Patent GB-1319283-A (GB)
Title: Producing finned pipe units
IPC: B22D19/00
Filed: 1970-06-12
Abstract: 1319283 Finned-tube heat exchangers G SCHOLL 12 June 1970 [13 June 1969 31 July 1969 16 Feb 1970] 28459/70 Heading F4S [Also in Division B3] A heat exchanger tube 2 is provided with transverse fins bonded to the tube by metal 9 (e.g. aluminium) cast between the tube and the fin. Each fin comprises a pair of identical, flat, rectangular plates 1, and each fin plate has a recess 3, Fig. 1, to accommodate the tube and at the periphery of the recess are notches 6 which are filled by the cast metal. The tube cross-section may be circular, elliptical or of generally triangular shape, Fig. 10, and each fin may be bonded to more than one tube. A method of making the finned tubes is described see Division B3.
Patent GB-386060-A (GB)
Title: Improvements in or relating to combined electric motor and gear units
IPC: H02K7/116
Filed: 1931-10-14
Abstract: 386,060. Motor driving arrangements. BROWN & SONS (HUDDERSFIELD), Ltd., D. and SYKES, A., Park Gear Works, Lockwood, Huddersfield. Oct. 14, 1931, No. 28485. [Class 35.] Reduction gearing for an electric motor comprises two coaxial shafts connected by gearing on a countershaft, the whole being enclosed in a casing a having supporting feet a<3>, a<4> and formed at one end with a sleeve a<1> to receive and support the motor casing d. The sleeve a<1> and motor casing d are formed with flanges a<2>, d<2> which are bolted together. The end wall a<5> of the casing a is formed with an opening a<6> through which the motor shaft c passes and through which the pinion b can be removed, a suitable removable bearing e being provided. Alternatively the shaft c may be made in two . detachable portions, one of which carries the pinion b.
Patent GB-408537-A (GB)
Title: Improvements in or relating to frame aerial structures
IPC: H01Q7/02
Filed: 1933-10-16
Abstract: 408,537. Aerials. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Oct. 16, 1933, No. 28622. Convention date, Oct. 14, 1932. [Class 40 (v).] A collapsable loop aerial structure comprises one frame or two mutually perpendicular frames, the frame or frames being constituted by a single turn consisting of rigid parts. As shown, an auxiliary vertical rod or tube aerial c carries a tubular insulator i to which are clamped rings n, n1, each of which supports a loop, but only one of which is shown. The loop comprises members b1, b2 hinged to the ring n and members b3, b4 hinged at d1, d2 to the members b1, b2 respectively and slotted at p3, p4 to engage studs r on projections q3, q4 respectively of a base member a. The studs r are provided with clamping nuts. On a collar f on the aerial member c is supported a spring g tending to press the insulator i against a stop h, and inextensible cords or chains connect the joints d1, d2 with the adjacent joints of the other loop (not shown). The vertical aerial c is detachably supported on a member e carrying a compass k, said member e being detachably supported on the stand a, and a detachable extension b for the rod aerial may be provided. When the structure is dismantled the arms b 1-b4 may be folded to the dotted line position. The joints between the arms may be bridged by flexible metallic strips soldered to the arms.
Patent GB-181294-A (GB)
Title: Improvements in or relating to tyre levers
IPC: B60C25/02
Filed: 1921-10-28
Abstract: 181,294. North, T. Oct. 28, 1921. Tyre covers, tools for removing and replacing. -A lever a, hinged to an angle bracket b which is apertured at d to fit over the wheel axle, a bench-bolt &c., is formed with a squared portion a<1> on which plates e, g are adapted to slide. The plate e, which is formed with an off-set lug e<2> to engage the wheel rim, serves to raise the edge of the tyre cover above the rim flange, the curved plate g forcing the cover into position as the device is turned about the centre d with the plate e in advance of the plate g. To remove a tyre, the lug e<2> is engaged under the tyre edge and the tool rotated in the opposite direction.
Patent GB-243169-A (GB)
Title: Improvements in and relating to vertical, or inclined, gasmaking retorts
IPC: C10B7/02
Filed: 1924-12-01
Abstract: 243,169. Wollaston, T. R. Dec. 1, 1924- Retorts. - In a vertical or inclined gas retort comprising upper and lower portions the fuel is stirred and precoked in the upper portion to which heat is supplied by the hot gases from the lower portion and, if desired, by external flues or a chamber by which the retort is enclosed. The pre-coking portion a has arms b attached to a rotary shaft c and fixed stages d with apertures e through which the fuel passes from stage to stage. The portion a is superposed on one or more retorts m and is provided with a gas outlet k. The two portions may be mounted in a setting v having flues w but the upper portion a may be wholly or in part situated above the setting v. Both portions or the lower portion only may be inclined. Specifications 113,856, 207,700, and 209,352 are referred to.
Patent GB-1031674-A (GB)
Title: Improvements in and relating to the cooling of hot gases by contact with liquids
Inventor: MURTHY PANCHAGNULA SCRINIVASA
IPC: B01D51/10
Filed: 1961-08-09
Abstract: 1,031,674. Contacting a gas with a liquid. GAS COUNCIL. Aug. 9,1962 [Aug. 9,1961], No. 28778/61. Heading B1R. In a process for cooling and washing a hot gas containing solid particles a washing liquid is circulated between an upper vessel 1 and a lower vessel 2 via a downcarrier 4 and a riser 3 by introducing bubbles of the gas into liquid in the riser through a pipe 14 arranged axially in the riser and communicating with the free space above the liquid in the vessel 2 through a pipe 15, the gas entering the vessel 2 through an inlet 17 and leaving the vessel 1 through an outlet 9 and liquid returning from vessel 1 to vessel 2 via the downcarrier 4 is cooled externally as at 20. Liquid from vessel 1 may be introduced into the gas passing through the inlet 17 by a pipe 24 as shown. In a modification a part of the riser 4 may be formed as a series of parallel tubes.
Patent GB-413911-A (GB)
Title: Carburetter for internal combustion engines
IPC: F02M29/02
Filed: 1933-10-18
Abstract: 413,911. Spray carburetters. FREYTAG, E., 26, Adolf-Hitlerring, Zwickau, Saxony, and DELLING, E., Erfenschlag, Chemnitz, both in Germany. Oct. 18, 1933, No. 28798. [Class 7 (iii).] Fuel is sprayed by a nozzle 9 into the interior of a mixing wheel 2, the periphery of which is formed by helically arranged blades 5, the inner edges of which are sharp. The wheel is rotated by an electric motor through gearing 3, 31 and shaft 7. The air inlet to the interior of the wheel is controlled by a perforated plate 13 adapted to be moved over a fixed plate 12 provided with perforations 11.
Patent GB-1369929-A (GB)
Title: Device for determing the composition of a liquid fuel-gas mixture
IPC: F02M19/01
Filed: 1972-06-20
Abstract: 1369929 Measuring fluid-flow testing spray carburetters KHARKOVSKY AVTOMOBILNODOROZHNY INSTITUT ULITSA PETROVSKOGO 20 June 1972 28842/72 Heading F1B [Also in Division G1] In a device for determining the composition of a liquid fuel -gas mixture an air-flow sensing element 2 is connected to a carburetter air line and a liquid fuel - air mixture composition indicator 1 is interfaced between a fuel feed pump and a carburetter union so that the fuel line from the pump is coupled to an inlet 69 and an outlet 25 is connected with carburetter fuel feed line and the arrangement is such that liquid fuel flow via the union 19, orifice 20, annular channel 17 orifice 18, cavity C, annular section c of a throttle 12, channels 13 and a chamber B, of a centrifugal pump, through inlets 22 and into a chamber E with pump impellor 8 and then through an annular bore 24 into the outlet 25 to the carburetter being tested. The liquid fuel on passing through the throttle 12 exerts a pressure on a radial movable partition 10 which is moved counter-clockwise. Air directed to the carburetter passes through the sensing element 2, ports 37 to rotate a vane 39 which, via worm 38 and worm 40, rotates a shaft 4 to drive the impeller 8 at a rate proportional to the air rushed into the carburetter. The shaft 4 also drives a small electric motor 5 which compensates for the moment of inertia of the rotary components of the device. The impellor 8 causes liquid fuel in chamber E to be thrown through outlets 23 to pass through channel 21, a cavity D, annular section d of throttle 12 to return through openings 22 into chamber E in a closed cycle. The liquid fuel in chamber D exerts a pressure on partition 10 to tend to rotate the partition in a clockwise direction. As the liquid flow through the chamber C is equal to the flow rate of the liquid fuel through the carburetter and the liquid fuel flow rate through the chamber D is proportional to the rate of air-flow through the carburetter. The position of the partition 10, and hence a pointer 30, defines the liquid fuel -gas ratio. The airflow indicator 3 is a conventional tachometer. (For Figures see next page)
Patent GB-254951-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B69/00
Filed: 1925-11-16
Abstract: 254,951. Silvani, G. E. Nov. 16, 1925. Channels in valve gear of internal-combustion engines.-Lubricating oil is forced through holes y, y<1> in a hollow shaft x common to several cylinders and passages t, t<1> in the rockers i to the ends of the valve stems and push rods; it returns through passages v to the engine sump.
Patent GB-157611-A (GB)
Title: Improvements in or relating to knee grips for cycles, motor cycles or the like
IPC: B62J25/00
Filed: 1919-11-20
Abstract: 157,611. Bednall, H. Nov. 20, 1919. Knee-grips for motor-cycles are formed as crescent-shaped pads 5 secured to circular discs 1 which are secured to the sides of the tank &c. by means of straps 3, thus permitting a vertical and horizontal adjustment by means of straps and an angular adjustment by means of slots 2 in the discs.