baber/WOPTO huggingface dataset:
Patent GB-410373-A (GB)
Title: Improvements relating to the manufacture of acetic and other aliphatic acids from alcohols
Inventor: GUINOT HENRI MARTIN
IPC: C07C51/16
Filed: 1933-09-04
Abstract: Acetic and other aliphatic acids are made by oxidizing an alcohol with an oxidizing agent capable of electrolytic regeneration, such as potassium dichromate or permanganate, separating the acid by means of a solvent such as ethyl acetate or a mixture of benzene and methyl ethyl ketone and reoxidizing the spent oxidizing agent electrolytically.  The extract is distilled by known azeotropic methods to obtain the anhydrous acid.  The alcohols mentioned are ethyl and propyl alcohols, and it is stated that when the higher alcohols are treated, acids of lower molecular weight are obtained, by cleavage of the molecule.
Patent GB-670999-A (GB)
Title: Combined thermostat and pilot-burner flame-failure control apparatus for gas-burning appliances
IPC: F23N5/00
Filed: 1949-09-23
Abstract: 670,999. Valves. ROBERTSHAW-FULTON CONTROLS CO. Sept. 23, 1949 [June 11, 1949], No. 24538/49. Class 135 A combined thermostat and pilot-burner flamefailure control apparatus for gas burning appliances, e.g. space heaters, comprises a gas control valve, an electromagnet having an armature biased to the released position and energised by a pilot-burner flame responsive means to attract the armature, holding means for closing the valve when the armature is released but which are ineffective when the armature is attracted, a thermal element reponsive to the temperature of the medium heated by the burners, and a lever operated by the thermal element for opening the valve when the holding means is ineffective. Rotation of the main gas cock handle 28 through a quarter turn brings a land 31 over a button 32 so that on pushing in the handle the button depresses a lever 108 having a projection which opens a valve allowing gas to flow from the inlet 12 to a pilot burner. The lever also pushes an armature 102 against a spring 106 into contact with an electromagnet so that on lighting the pilot a thermocouple energizes the magnet which holds the armature. Another quarter turn of the handle 28 allows gas to flow from the inlet into the chamber 16, past a control valve 58 connected by a spring 110 to the lever 108, and through an outlet 14 to the main burner. The control valve is operated by a thermal feeler 81 and bellows 76 adjustable by a screw 86 and acting through a lever 82, a snap-acting mechanism 70, magnifying levers 68 and an override plunger 64, the lever tending to open the valve due to its loading spring 84. On extinguishment of the pilot, the magnet releases the armature and the spring 106 closes the valve 58. Specification 590,605 is referred to.
Patent GB-1143438-A (GB)
Title: Steroids related to oestradiol
Inventor: SMITH HERCHEL
IPC: C07J5/00
Filed: 1965-03-03
Abstract: 1,143,438. #<SP>1'3'5(10)</SP>-Steroids. H. SMITH. 3 June, 1966 [3 March, 1965], No. 24557/66. Divided out of 1,103,205. Addition to 1,041,277. Heading C2U. Novel steroids of the structure (wherein one R is C 1-6  alkyl and the other is H; R<SP>1</SP> is C 2-4  alkyl; R<SP>2</SP> is H, alkyl or acyl; R<SP>3</SP> is trans to R<SP>1</SP> and is alkyl, alkenyl or alkynyl, substituted or unsubstituted; and the group R<SP>1</SP> and the hydrogen atoms at the tertiary carbon atoms in ring C are in the trans-antitrans configuration) are prepared from the corresponding 17-ketones and organometallic compounds containing R<SP>3</SP>. In the products, when R<SP>3</SP> is unsaturated it may subsequently be hydrogenated to a group of lesser or no unsaturation. Also, standard hydrolyses, esterifications and etherifications may be effected in the 3-substituent. (Œ) 13# - n - Propyl - 3 - methoxy - 6 - mefhylgona - 1,3,5(10) - trien - 17 - one is prepared by reacting 6 - m - methoxyphenyl - hept - 1 - en - 3- one with 2-n propylcyclopentane- 1,3 -dione and reacting the product with ethylene glycol to give (Œ)13# - n -propyl - 17,17 - ethylenedioxy-3- methoxy - 6 - methylgona - 1,3,5(10),8,14 - pentaene, hydrogenating this to the 1,3,5(10),8- tetraene, reducing this to the ] ,3,5(10)-triene and hydrolysing this.
Patent GB-958389-A (GB)
Title: Improvements in and relating to picnic sets
IPC: A45C11/20
Filed: 1961-07-07
Abstract: 958,389. Picnic cases. G. CHRISTODOULIDES, and A. KOUZOULIS. July 7, 1961, No. 24579/61. Heading A4G. A picnic case comprises two separable tray-like parts 10, 20 connected by hinge pegs and sockets 29, 19, or by clips, and having on their inner faces recesses which are shaped to fit cups, bottles, specific foodstuffs and utensils. Certain cavities such as 12 may contain liquid and be sealed by a screwed or clipped lid 14. The tray parts, which may be moulded or machined or made up of assembled recessed sections, are held in closed position by straps and have handles 32 for carrying purposes.
Patent GB-430621-A (GB)
Title: Improvements in or relating to ventilating means for vehicles
IPC: B60H1/26
Filed: 1934-08-28
Abstract: 430,621. Ventilating vehicles. BEEDHAM, R., 35, Great James Street, Londonderry, Northern Ireland. Aug. 28, 1934, No. 24723. [Class 137] Ventilating means for motor vehicles or railway carriages includes the use of an air diffusing member having a large number of openings spread over an area which is large compared with the space to be ventilated. Air admitted due to motion of the vehicle through an adjustable inlet 3 to a chamber 6 extending under the vehicle roof, passes into the interior through a gauze screen 5 extending substantially over and forming the floor of the chamber 6. This screen is supported on cross members 5<a>, and a part of it may be covered by an horizontal roller blind secured to the rear portion of the roof of the car. In Fig. 5 the gauze screen is shown applied to a motor saloon with a sliding roof. Reference has been directed by the Comptroller to Specification 368,060.
Patent GB-443187-A (GB)
Title: Improvements in and relating to electric switches having arc extinguishing chambers
IPC: H01H33/76
Filed: 1935-09-05
Abstract: 443,187. Air-blast switches. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Sept. 5, 1935, No. ' 24796. Convention date, Sept. 15, 1934. [Class 38 (v)] An air-break switch has a fixed contact 10 accommodated in an extinguishing chamber 5 which is filled solely with air and provided with a tubular insulating extension 12 closely surrounding the movable rod contact 6 which is completely withdrawn from the tube 12 for effecting the circuit interruption. The arrangement is such that in opening circuit, an arc is drawn in the tube 12 and chamber 5 which sets up a pressure which is only relieved when 6 leaves 12, followed by a blast of gas. The clearance between 6, 12 is preferably one millimeter, and 12 is preferably of hard rubber or other material which evaporates under the action of the arc without leaving any substantial residue. Fig. 1 shows a sliding isolating power switch, the " open " condition of which is readily visible, having the extension of contact 6 formed as a guide rod 7 operated by a pivoted insulator 4 and link 8. Chamber 5 is of metal which tightly encloses a number of centrally apertured discs 10 held in position by a spiral spring 11 and forming the fixed contact.
Patent GB-1339990-A (GB)
Title: Duplex information transmission systems
Inventor: CHRISTIANSEN H-M
IPC: H04J3/06
Filed: 1971-04-19
Abstract: 1339990 Multiplex pulse signalling SIEMENS AG 19 April 1971 [10 April 1970] 24815/71 Heading H4L Synchronization in a duplex pulse-information transmission system is maintained by the use of a test signal C regularly transmitted by each transmitter during normal operation, and adequate for recognition of correct synchronization at the receiver, and when synchronization is lost at a particular receiver a request signal A is sent by the transmitter at that end to call up a re-synchronizing signal B, the system returning to normal when this has re-established synchronization. As described applied to a time-division multiplex system having 12 channel groups in each frame R1, R2, ... one bit in each group of each nth frame is used to provide the C signal C-S. The A signal (A-S) consists of an 8-bit word in one channel of each frame and the B (B-S) signal is a similar word. When the B signal has produced synchronization the C signal is reintroduced.
Patent GB-205101-A (GB)
Title: Improvements relating to the distillation of carbonaceous substances
IPC: C10B1/04
Filed: 1923-10-05
Abstract: 205,101. Kohlenveredlung Ges., (Assignees of Wolf, A.). Oct. 5, 1922, [Convention date]. Gaseous-fuel furnaces.-A retort is heated wholly or in part by outward radiation from a centrally disposed heated body such as a mass of refractory material. As shown in connection with an annular vertical retort b, more particularly adapted f o r low temperature distillation, combustion of gas and air supplied by a burner h is effected within a refractory cylinder a arranged in the internal flue of the retort. Repeated change of direction of the heating flame is provided for, advantageously by corrugating the exterior of the cylinder a and the internal flue of the retort as shown. The wall of the cylinder is formed with openings e, and a control of the heating is obtained by means of a vertically adjustable block c which controls the passage of the heating gases through these openings and their contact with the retort wall. In another construction the heating-gases pass vertically upwards through the cylinder a and then downwards between the cylinder and the retort wall. The temperature of the combustion products may be controlled by supplying air round the burner nozzle through a by-pass k.
Patent GB-930037-A (GB)
Title: Electrical testing apparatus
Inventor: COOK RONALD JOHN
IPC: G01R27/02
Filed: 1961-07-10
Abstract: 930,037. Testing insulation. LONDON ELECTRICAL MANUFACTURING CO. Ltd. July 10, 1961, No. 24867/61. Class 37. Apparatus for testing a component by the application to it of an alternating potential for a predetermined period of time, corresponding to a few cycles, includes a relay, energization of which both de-energizes another relay and closes a contact to connect the A.C. supply to the component; the operation of the other relay, which is delayed by the predetermined period with respect to its de-energization, opens a contact to disconnect the supply from the   component. Before test, relay RL/2 is energized   by current flowing through contact RL.2/1,     whereby its contact RL.1/2 is maintained closed. The test is initiated by closing switch SW, which   energizes relay RL/1 to open contact RL.2/1 and close contact RL.1/1, whereby A.C. is applied to the component X under test. The operation of   relay RL/2, to open its contact RL.1/2 and dis-   connect the supply from X, is delayed by a period determined by the value of capacitor C. The bias supply B for the thyratron V1, derived from transformer T1, is set such that V1 is fired only if the current through resistor R2 rises to a value corresponding to a faulty component. The closing of the contact RL.3/1 of relay RL/1 is delayed relative to the closing of contact RL.1/1 , to prevent firing of the thyratron by any initial current surge in the test circuit. Firing of the thyratron by a faulty component causes relay RL/3 to operate a lamp or counter, or eject the component; contact RL.3/1  resets the   thyratron upon the de-energization of the relay RL/1 at the end of the test. The components   under test e.g. capacitors, may be carried on a conveyer belt, and instead of a biased thyratron, a detector sensitive only to in-phase current may be employed.
Patent GB-735271-A (GB)
Title: Improvements in or relating to pipe, hose or like couplings
Inventor: LOVE JOHN
IPC: F16L23/06
Filed: 1953-09-09
Abstract: 735,271. Barrel clips. K.A.C., Ltd. Sept. 9, 1953, No. 24986/53. Addition to 732,442. Class 44. [Also in Group XXVIII] In a pipe joint, the pipe flanges are drawn together by contraction thereon of an articulated channel-section clamping ring, a swivel block 13 on an end segment 1 of the ring having aT-bolt 16 slidable non-rotatably in a transverse bore therein. The bolt has an adjusting nut 20 and a sleeve 22 bearing on the block, and its head carries links 25 which are pivotally connected to a toggle lever 27 intermediate its ends. The lever has notches 30 which engage pins 31 of an anchorage block 32 on the other end segment 4 of the clamp which is tightened when the lever is moved to a position alongside the segment 4. The lever may be locked by a split pin engaging holes 35, 36. The segments may be hingedly connected at 8, or they may be carried by a spring band 42, Fig. 5, the ends of which have loops 43, 44 carrying the blocks 13, 32. The segments 38 attached to the band may be pressings having beaded edges 41, or they may be similar to those shown in Fig. 2.
Patent GB-296412-A (GB)
Title: Improvements in sand-moulding machines
IPC: B22C11/02
Filed: 1928-08-30
Abstract: 296,412. Soc. Anon. des Usines de RosiÞres. Aug. 31, 1927, [Convention date]. Addition to 283,172. Moulding-machines; plants. - The machine described in the parent Specification is made continuous by arranging a train of pattern plates G connected by bars J on an endless track comprising rollers K and a guide 19, Fig. 4, the bars J and bars L fixed under the plates G being toothed to form a rack engaged by a pinion 15. This pinion and the pressure rollers D, Fig. 2, are driven through chain gearing by the same motor. The flasks P are placed on the plates G as they pass the position A, they are filled by a sand hopper B, hand rammed at C if necessary, pressed at D, drawn at E and removed by a hoist M to a conveyer F. The drawing is effected automatically by racks 23, Fig. 5, carried by each plate G and moved up to lift the flask P by pinions 22, lever, 24, and fixed bar 28.
Patent GB-405737-A (GB)
Title: Improvements in or relating to hairwaving apparatus
IPC: A45D2/32
Filed: 1932-09-08
Abstract: 405,737. Hair-waving appliances. CHARLES, J., 9B, Shepherd's Bush Road, Hammersmith, London. Sept. 8, 1932, No. 25034. [Class 131.] A mandrel for use in.permanent waving comprises a tapered bellmouthed tube e and a central rod a screwed at one end into a nipple f and provided at the other with a hook c having an extension d which frictionally engages in the mouth of the tube e. In use, the root end of the tress is secured to the nipple f, the tress wound on the tube e and secured by bending with muslin or the like, and the rod a then rotated to tighten the tress.
Patent GB-994714-A (GB)
Title: Pharmaceutical compositions useful as general metabolic depressants
Inventor: STEVENSON DONALD EDWARD
IPC: A61K31/15
Filed: 1962-06-29
Abstract: Pharmaceutical compositions having general metabolic depressant activity with concomitant hypnotic and analgesic effect comprise a carrier and a compound (or a salt thereof) of the general formula <FORM:0994714/A5-A6/1> wherein X represents a halogen atom; X1 represents a halogen atom, a thiocyanate or nitro group, or an alkyl or alkoxy group containing 1 to 4 carbon atoms; W represents a hydrogen atom, an alkoxy or alkylcarbonyloxy group containing up to 4 carbon atoms or an -NH.CO.COOCH3 group; and Z represents (a) a cyano group; (b) a nitrile oxide group; (c) a group of formula -CY = NOM or <FORM:0994714/A5-A6/2> wherein M represents a hydrogen atom, an acetyl, halogenated acetyl or ethoxycarbonyl group and Y represents a hydrogen or halogen atom, a cyano, thiocyanato, nitro, 4-methylphenylthio, phenylsulphonyl, hydroxyamino, hydrazino, phenylhydrazino, morpholino, piperidino or ureido group, or a group of formula NR1R2 (wherein R1 and R2 may be the same or different, each representing a hydrogen atom, a hydrocarbyl group containing 1-4 carbon atoms which group may bear halogen and/or hydroxy substituents; (d) a group of formula <FORM:0994714/A5-A6/3> or <FORM:0994714/A5-A6/4> wherein R represents a hydrogen atom, an unsubstituted or halogen substituted hydrocarbyl group containing 1 to 4 carbon atoms, or wherein -NR2 represents a morpholino group. They may be in conventional forms for oral and parenteral administration e.g. syrups, elixirs, powders, tablets and sterile solutions or suspensions comprising conventional excipients.
Patent GB-997808-A (GB)
Title: Cold separation of gas mixtures
Inventor: HARMENS ALEXANDER
IPC: F25J3/06
Filed: 1964-06-17
Abstract: 997,808. Cold separation of gas mixtures. CONCH INTERNATIONAL METHANE Ltd. June 17, 1964, No. 25081/64. Heading F4P. Separation of a cold compressed binary gas mixture into components of widely differing boiling points, e.g. nitrogen and helium, is effected by partial condensation of the feed mixture in a line 10 of a first indirect heat exchanger A, phase separation in a first vessel X, withdrawal of gas from the latter through a line 30 and after compression at 1 and cooling in an intermediate exchanger C and exchanger A partial condensation in a second indirect heatexchanger B, separation in a second vessel Y into helium rich nitrogen gas which is withdrawn through a line 40 and into lean liquid nitrogen which is expanded in a valve 17 and used as refrigerant for exchanger B, after which the resulting gas is compressed at 2, 3 and fed to the separator X, the liquid nitrogen being withdrawn therefrom through a line 33 and forced by a pump 21 through the first exchanger A to cool the same. The helium rich nitrogen gas leaving vessel Y is passed through a molecular sieve and product helium gas is forced by a compressor 5 through a cooler D and a delivery line 47.
Patent GB-976410-A (GB)
Title: Improvements relating to ball joints
Inventor: DONNELLAN GERALD LOWE
IPC: F16C11/06
Filed: 1962-06-29
Abstract: 976,410. Ball joints. ENGINEERING PRODUCTIONS (CLEVEDON) Ltd. June 28, 1963 [June 29, 1962], No. 25124/62. Heading E2F. A method of making a ball joint, Fig. 1, of the type comprising a housing 1 having an inwardly shouldered mouth 1a at one end and a closure member 2 at the other includes the steps of holding the ball element and the housing in their correct relative assembly positions, injection moulding low friction synthetic plastics bearing material between them to form a socket 5, and, when the plastics material has set, applying the closure member 2 to the housing to pre-load the socket. The closure member may be retained by peening over the housing rim, or may alternatively be adapted to screw into the housing. The moulding is performed with the aid of a die 6 which closes off the housing mouth and a die 7 which is located against an internal ledge 9 in the housing and has an injection orifice 8. The injected material may be a thermoplastic such as nylon or polypropylene, a poly-isocyanate condensation product, or a material containing P.T.F.E., and if desired a sock of woven material incorporating P.T.F.E. may be placed around the ball before the injection is performed. In a modification, Fig. 5, a preformed washer 12 made of nylon or the like is located against the housing shoulder 10a before injection to close the housing mouth, thereby making the use of the die 6 unnecessary, and a deformable insert 19 or a spring is located between the closure member 13 and the socket 18. The washer 12 may be formed as the integral rim of a flexible dust excluder, or a separate dust cover may be provided. Lubricant can be inserted in the joint before the closure member is fitted, and lubricant passages may be formed in the socket.
Patent GB-261888-A (GB)
Title: Improvements in the manufacture and production of isodibenzanthrones
IPC: C09B3/22
Filed: 1925-10-09
Abstract: 261,888. Johnson, J. Y., (Badische Anilin &Soda Fabrik). Oct. 9, 1925. Isodibenzanthrone dyes are obtained by treating Bz1-halogenbenzanthrones having free 2- positions with mixtures of caustic alkalies and alkali alcoholates in the presence of inert diluents. The reaction takes place at comparatively low temperatures and access of oxygen should be avoided. The mixtures can be prepared by adding a restricted quantity of an alcohol to caustic alkali in presence of a diluent and the halogenbenzanthrone. In place of an alcohol a substance which yields an alcohol may be used such as benzaldehyde, which in presence of caustic alkali yields benzyl alcohol and benzoic acid. According to examples (1) Bz1-chlorbenzanthrone is stirred at 10-15‹ C. with caustic potash, isopropyl alcohol and benzene, or is heated at 80‹ C. with caustic potash, benzaldehyde, and trichlorbenzene; the reaction mixture is steam distilled and the isodibenzanthrone is purified by vatting. 6 : Bz1-Dichlorbenzanthrone is also specified as parent material, the corresponding chlorinated isodibenzanthrone being obtained.
Patent GB-929364-A (GB)
Title: Improved drive control apparatus
IPC: G11B15/52
Filed: 1961-07-12
Abstract: 929,364. Automatic speed control. AMPEX CORPORATION. July 12, 1961 [Aug. 22, 1960], No. 25296/61. Class 38 (4). In magnetic tape recording apparatus for television, a main motor 36 drives capstan pulley 37 directly, and also drives a first rotatable member of an auxiliary motor 45 through pulley 43 and gear train 46. The second member of the auxiliary motor is coupled through pulley 51 to a rotating head assembly 26 the speed of which is detected by photo-cell 76 co-operating with light source 74 and disc 73. During the recording operation, the signal from cell 76 is applied to phase comparator 78 and is also applied through magnetic head 21 to a track on tape 13, a signal being recorded on the tape dependent upon the rotational speed of assembly 26 relative to the tape speed or speed of capstan 29. The phase comparator also receives a signal from reference oscillator 81, the D.C.. output signal from the comparator being applied to the motor 45, thereby to control the speed of assembly 26 relative to the speed of capstan 29. During the playback operation, the signal recorded on the tape is applied to the comparator 78 wherein it is compared with the signal from cell 76, the error signal being applied to the motor 45. Preferably, the armature of the auxiliary motor is arranged to rotate continuously in one direction, and the motor may be either of the direct-current or synchronous types. In another embodiment, the capstan 29 may be driven from the second member of the auxiliary motor, or the capstan may be coupled directly to the first member of the motor 45.
Patent GB-1478026-A (GB)
Title: Process for the production of oxazoline derivative
IPC: C07D263/12
Filed: 1974-06-07
Abstract: 1478026 Production of oxazoline derivative BAYER AG 7 June 1974 [9 June 1973] 25325/74 Heading C2C A 2-vinyl oxazoline of formula in which R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP>, which may be the same or different, each represents hydrogen, or an optionally substituted alkyl or aryl radical, is prepared by reacting cyclobutane-1,2-dinitrile in a first stage, with an aminoethanol of formula in which R<SP>1</SP>-R<SP>4</SP> are as defined above, at a temperature of from 90‹ to 180‹ C., and in a second stage, heating the resulting 1,2-bisoxazolin-2-yl cyclobutane of formula and/or 2-oxazolin-2-yl cyclobutane nitrile of formula wherein R<SP>1</SP>-R<SP>4</SP> are same as above, at a temperature of from 250‹ to 600‹ C. Compounds of Formula II and III are also claimed per se.