baber/WOPTO huggingface dataset:
Patent GB-589986-A (GB)
Title: Improvements in or relating to feed and drive arrangements for machine tools
IPC: B24B47/04
Filed: 1945-04-06
Abstract: 589,986. Grinding-machines. BECHLER,A. April 6, 1945, No. 8592. Convention date, April 24, 1944. [Class 60] In a machine tool, particularly a grinding- machine, in which the tool carrier makes longitudinal reciprocations and is fed transversely to the extent permitted by an adjustable stop, the carrier makes a predetermined number of longitudinal movements after the feed ceases, the machine then being automatically disconnected from its drive. As shown, the grinding-wheel 26 of an internal grinder is mounted on a carrier 14 which is reciprocated by a cam 13 and spring 17, arm 15 and connecting rod 20. The feed is effected by a spring 25 which is allowed to act by the retraction of a screw 34 which abuts on a fixed surface and is operated by ratchet-and-pawl means 30, 31, 32 and an adjustable stop 33. A lever 21 is pivoted on the carrier 14 and, during the feed motion, is held frictionally to prevent a weight 24 from swinging the lever to position a feeler 23 in line with a pawl 25. The frictional holding means comprises a plunger which is spring-pressed against the slotted end 22 of the lever, the plunger having an extension 40 which is engaged by the adjustable feedstop screw on the upper slide of the carrier 14. The screw pushes back the plunger and releases its frictional hold, thereby bringing the pawl 25 into operation. The ratchet wheel 10 is thus moved intermittently with each further longitudinal movement of the carrier 14 until the finger 9 swings the lever 6 to disengage the clutch to stop the machine.
Patent GB-795802-A (GB)
Title: Safety coupling device
Inventor: WALSH FREDERICK JOHN
IPC: F16D7/04
Filed: 1954-03-24
Abstract: 795,802. Machinery breaking-pieces. HEAT & AIR SYSTEMS, Ltd. Jan. 27, 1955 [March 24, 1954Class 80 (4). Shear pins 5 are arranged between flanges 1, 2 of a coupling between driving and driven shafts 3, 4 and are adapted to break on overload. The relative rotation between the two flanges is limited by bolts 6 on one flange engaging in slots 7 of the other flange but a sleeve 8 is adapted to slide axially on one flange against springs 13 by engagement of notches 10 thereon with dogs 11 secured to the other flange to actuate the arm 16 of a switch 17 to stop the driving motor.
Patent GB-398878-A (GB)
Title: Production of fast tints on wool
IPC: D06P3/14
Filed: 1932-03-23
Abstract: Fast tints are produced on wool by grounding with an unsulphonated arylide of 2 : 3-oxynaphthoic acid containing no SO2NHR group, in presence or absence of an electrolyte, in a bath prepared with the aid of 0,6-1.8 grams. of caustic alkali per litre and developing with a diazotized p-aminodiphenylamine containing no solublizing groups. Arylides specified are the anilide, a  or b -naphthylamide, 5- or 4-chlor - 2 - toluidide, o-, m- and p-anisidide, o-, m- or p-chloranilide, o-, m- and p-toluidide, 4-chloranisidide, m-xylidide, o- and p-phenetidide, m-phenylenediamide, a m-toluylenetramide, 2 : 5-dimethoxyanilide and the 4-methoxy-2-methylanilide.  In examples wool is grounded with the anilide at 45 DEG  C. and developed with 4-amino-4<1>-ethoxy- or 4<1>-methoxydiphenyl - amine (blue).  Other diazo components specified are 4 - aminodiphenylamine, 4 - amino - 2<1>-methoxy - 5<1> - chlorodiphenylamine, 4 - amino-2<1> : 5<1>-dimethoxy- or d diethoxydiphenylamine.  Specifications 283,838, 310,758 and 313,865, [all in Class 15 (ii), Dyeing, Processes &c. for], are referred to.  The Specification as open to inspection under Sect. 91 comprises unsulphonated 2 : 3-oxynaphthoic arylides in general, the following grounding conditions, viz. (1) liquor ratio 6 : 1-50 : 1; (2) grounding bath not to contain more arylide than amounts to 5 per cent of the weight of the wool; (3) the proportion of alkali hydroxide to be about 1,5-2,5 times that of the amount of arylide and gives a further example of dyeing with 4<1>-ethoxy-4-aminodiphenylamine and the a -naphthylamide. This subject-matter does not appear in the Specification as accepted.
Patent GB-627344-A (GB)
Title: Improvements in or relating to switching devices for the distribution of electric signals
IPC: H02B1/20
Filed: 1947-03-31
Abstract: 627,344. Plug boards. TELEFONAKTIEBOLAGET L. M. ERICSSON. March 31, 1947, No. 8682. Convention date, April 1, 1946. [Class 38 (i)] [Also in Group XXXVII] In a multi-circuit plug board suitable for connecting any one of a number of broadcasting programmes to any one of a number of lines and comprising a set of parallel conductors as 4, having jacks 2, 3, connectible by plugs 9 to sockets, as 5, 7, connected to parallel conductors as 6, 8 crossing the first set, the plugs 9 are provided with long pins 10 which enter holes 12 in a pair of insulated tubular conductors 11 and dislodge balls 13 so as to prevent the insertion of the pin 10 of another plug. The balls are positioned by spring-loaded plungers 14 and the conductors 11 form part of a circuit for an indicator which is completed by the insertion of the pin 10. The Specification as open to inspection under Sect. 91 comprises, also, a modification in which the balls are replaced by a cylindrical spring for interconnecting several plugs (Fig. 3 (Cancelled), not shown). This subject-matter does not appear in the Specification as accepted..
Patent GB-402643-A (GB)
Title: An improved container or case for dry cell electric batteries
IPC: H01M50/204
Filed: 1933-03-23
Abstract: 402,643. Batteries. BROWN, T. J., 189, Uxbridge Road, West Ealing, London. March 23, 1933, Nos. 8817 and 12669. [Class 53.] A number of batteries in a closed container are joined together by connectors 3 which are mounted on a plate 18 which is separate from the container as shown in Fig. 2. The connectors may be secured to the plate by means of eyelets 4 which may receive tapping plugs. Connection to the end terminals of the battery is made by eyelets carrying single spring connectors 11 as shown in Fig. 5. Figs. 6 and 7 show a modification in which the zinc containers of the cells are provided with connectors 14 having bent portions 15 at their ends which grip the positive contacts 16 when the connectors 14 are bent down by members 22 carried by the plate 18. The members 22 which are required for tapping are bored and lined with metal tubes or eyelets. The casing which encloses the batteries is made in two parts 1, 2 which may be connected together by press fasteners. According to the Provisional Specifications the connectors 3 and members 22 may be carried by the container.
Patent GB-542641-A (GB)
Title: Manufacture of organic sulphur compounds
Filed: 1940-05-17
Abstract: 542,641. Mercapto-substituted esters. DU PONT DE NEMOURS & CO., E. I., BURKE, W. J., and PETERS, F. T. May 17, 1940, No. 8834. [Class 2 (iii)] Organic sulphur containing compounds containing mercapto and carboxylic ester groups are prepared by re-acting with hydrogen sulphide a monomeric ester of an α#-unsaturated monocarboxylic acid containing at least four carbon atoms preferably in the presence of a .basic catalyst such as an amine. The reaction is preferably carried out in a closed vessel under pressure. Temperatures used range from 25‹ C.-95‹ C. depending on whether or not a catalyst is present. It is possible however to use temperatures up to as much as 300‹ C. Catalysts mentioned include basic organic compounds in general such as butylamine, diethylamine, ethanolamine, morpholine, aniline, triethylamine, cyclohexylamine, phenyl hydrazine, tetramethylammonium hydroxide, sodium acetate, sodium methylate, as well as the inorganic basic compounds sodium hydroxide, sodium carbonate, calcium oxide and ammonia. The compounds of the invention have the general formula : where R 4  is the radical of an organic hydroxyl compound, i.e. an alcohol or phenol minus at least one of its hydroxyl groups and X is the number of the missing hydroxyl groups R 1'  R 2 , and R 3 may be hydrogen, or substituted or unsubstituted, saturated or unsaturated aliphatic, aromatic. alicyclic or heterocyclic organic radicals,. excluding the case where all R 1 , R 2  and R 3  are hydrogen. The radical R  4  may be saturated or unsaturated monovalent or polyvalent, aliphatic, aromatic, alicyclic or heterocyclic. The preferred form is monovalent aliphatic, and examples mentioned include the radicals of methanol, cyclohexanol, benzyl alcohol, ethoxyethanol, dodecanol-1, betachloroethanol, sec-butanol, phenol, naphthol, furfuryl alcohol, glycol, glycerol, xylenol. In examples (1) methyl-α-methacrylate and hydrogen sulphide are mixed in a closed bomb cooled in an acetone-solid carbon dioxide bath and then slowly heated to 200‹ C. to give methyl- 2-methyl-3-mercaptopropionate. (2) Methyl-α- methacrylate and hydrogen were mixed in the presence of piperidine and re-acted under the conditions of example (1) to give a similar product. (3) n-Butyl-α-methacrylate and hydrogen sulphide are re-acted as in example (2) to give a mixture of n-butyl-α-methacrylate and butyl-2-methyl-3-mercaptopropionate. (4) A mixture of monohydric alcohols obtained by hydrogenation of coconut oil, or oil acids and hydrogen sulphide are re-acted as in example (2) to give a mixture which is fractionally distilled-the fraction b.p. 130-156‹ C. is the " coconut alcohols " esters of 2-methyl-3- mercaptopropionic acid. The compounds of the present invention are useful as petroleum chemicals, pesticides, and agents for controlling the emulsion polymerization of chloroprene.
Patent GB-609781-A (GB)
Title: Improved recreational chair
IPC: A47C4/36
Filed: 1946-03-22
Abstract: 609,781. Seats. WAITE, B. March 22, 1946, No. 8885. [Class 52(ii)] The seating portion of a chair is pivoted to a supporting structure in such a position that the occupant by a slight movement of his weight may cause the seating portion to be adjusted between the upright and prone positions of the occupant, the pivoted adjustment being damped by pressure of the seating material against a cross bar and a position stop being provided to prevent the seating portion tilting too far to the rear. As shown, the seating portion comprises a rectangular frame 10 having a looped canvas &c. seat 17 and pivoted to a support at a position 11 which substantially coincides with the centre of gravity of the occupant. The support consists of side frames interconnected by transverse rods 7, 8, 9 and the side frames comprise arms 5, 6 having legs 1...4 pivoted thereto so that the chair may be folded but is held in operative position by stays 12, 13 pivoted on the transverse rod 8 and having notches which selectively engage projections 14 on the legs 2, 3. A foot-rest may be provided. In the sitting position the canvas 17 bears on a cross bar 9<1> and gives a damping effect to movement while a crossbar 7 serves as a positive stop to prevent excessive rearward tilting.
Patent GB-586031-A (GB)
Title: A temperature control means applicable to oil coolers for aircraft
IPC: F01P7/12
Filed: 1944-05-10
Abstract: 586,031. Cooling systems for engines. GARRETT CORPORATION. May 10, 1944, No. 8952. Convention date, Feb. 6, 1943. [Class 64 (iii)] [Also in Groups XXXV and XXXVII] A temperature control apparatus applicable to oil coolers for aircraft in which the heat content of the oil is changed by a heating or cooling medium includes a pair of relatively reciprocating electrical switch parts; and a thermostat responsive to changes in temperature of the oil and acting upon one end of a contact arm the other end of which engages intermittently with one or other of the switch parts. As shown, the oil circulates from an inlet 13, Fig. 2, over air-cooled tubes 16 to an outlet 14, and thence over a helical bimetallic thermostat 18, the free end 19 of which is secured to a rotatable shaft 20 carrying a contact arm 21 which coacts with contact arms 23a, 23b, Fig. 1. The latter arms are pivoted on pins 24 mounted on a plate 22 supporting a motor 29 which drives continuously a shaft 28 carrying a cam 27 which imparts oscillatory motion to the arms, the amplitude of the motion being such that no contact is made with the arm 21 when the latter is in its mid-position and the oil leaving the cooler has the desired temperature. The arms 23a, 23b are arranged in a circuit including relays 37, 47 controlling the switches 39, 49 in a second circuit including the field windings 40, 51 of a reversible motor 41 carrying an arm 44 which controls the shutters 46 of the radiator. When, with the cam in the position shown in Fig. 1, the temperature of the oil leaving the cooler falls below a predetermined value, the arm 21 contacts with the arm 23a, thus energising the relay 37 and closing the switch 39 so that current flows through the winding 40 of the motor which turns clockwise and closes the shutters 46. As the cam rotates the arm 21 is forced away from the arm 23a, thus breaking the circuit through the motor. For the greater part of the revolution of the cam the shutters remain at rest, and the temperature of the oil reflects the position of the shutters. If the. temperature of the oil leaving the cooler is above the predetermined value, the arm 21 contacts with the arm 23b and, through the relay 47 and switch 49, the motor is caused to turn anti-clockwise and open the shutter. The arm 44 is adjusted so as to open the switches 52, 53 when the shutter reaches either its fully open or fully closed position. An overriding device for cutting off the current to the winding 40 of the motor when the oil pressure entering the cooler reaches a predetermined value, consists of a switch 56 which is moved upwards by a piston 57, the lower side of which is exposed through a pipe 59 to the pressure in the inlet 13 to the cooler. Specification 515,484, [Group XXXV], is referred to.
Patent GB-1024589-A (GB)
Title: Improvements in or relating to bituminous slurry dispensing apparatus
Inventor: SWAN ROBERT DOUGLAS
IPC: E01C19/46
Filed: 1964-03-03
Abstract: 1,024,589. Mixing and laying road materials. SLURRY SEAL Ltd. March 2, 1965 [March 3, 1964], No. 8984/64. Headings E1G and E1T. A machine for mixing and laying a bituminous slurry comprises a self-propelled vehicle 1 carrying hoppers 7, 23 for aggregate and filler, tanks for bituminous emulsion and/or water, and having means for delivering the liquids and screw conveyer means 9 for delivering the solids to a mixer 11, the mixed slurry being delivered to a spreading device 33. The aggregate from hopper 7 is fed by two screw conveyers of increasing pitch towards the inlets to a mixer 11 having blades 14 and 15, both moving the mix towards the centre of the mixer. Filler, such as cement, is fed to the mixer from hopper 23 through a P.T.F.E. valve 24 and fabric tube 26 to minimize abrasion. Bituminous emulsion is pumped from side tanks to the mixer. The mixed slurry passes a controlled opening 20 to a spreader trough 33 having hinged width extensions and a rubber screed blade 35.
Patent GB-576021-A (GB)
Title: Improvements relating to synthetic materials
IPC: C08F8/00
Filed: 1943-06-04
Abstract: Synthetic materials, capable of forming a solution which, on drying, gives an insoluble product, are obtained by de-esterifying a copolymer of a b -halogeno-allyl or b -halogenocrotonyl ester with a compound containing the grouping CH2 = C<.  The halogeno-ester may be a chloro- or bromo-compound; specified esters are b -chloro-allyl acetate, carbamate and methyl carbonate.  Specified vinyl compounds are vinyl chloride, vinyl ethyl ether, styrene, methyl acrylate, acrylic and a -substituted acrylic acids, methyl methacrylate, acrylonitrile and vinyl acetate, carbamates and methyl carbonate. The preparation of copolymers of vinyl acetate and b -chloro-allyl N-ethyl carbamate, b -chloro-allyl benzoate and b -chloro-allyl ethyl carbonate is described.  De-esterification is preferably effected in alcoholic solution in the presence of a catalyst, e.g. hydrogen chloride, and specified alcohols are methanol, ethanol and propanol. The reaction does not usually go to completion, some ester groups remaining in the product.  By evaporating aqueous solutions of the product, materials insoluble in water and organic solvents are formed.  The aqueous solutions are useful as impregnating or coating agents, e.g. sizing agents for paper and textiles, and the solutions can be cast as sheets, or spun into threads, and into articles, e.g. surgical gloves, tubes for petrol or oils.  The product may be used to render insoluble hydroxyl-containing water-soluble polymeric substances, e.g. polyvinyl alcohol, cellulose acetate and cellulose hydroxyethyl ether.  The de-esterified copolymers may be reacted with aldehydes, ketones, isocyanates, carboxylic halides or anhydrides or etherifying agents.  In the case of acetal or ketal formation, preferably the aldehyde or ketone is present during the de-esterification process; the products obtained by this modification can usually be vulcanized.  In another modification of the process, the insoluble product obtained by drying solutions of the de-esterified co-polymers may be further treated with any of the above modifying agents to give useful products impermeable to water. The preparation of b -chloro-allyl esters from the alcohol is described.  In examples, the alcohol is heated in the presence of dry pyridine with (1) ethyl isocyanate to give b -chloro-allyl N-ethyl carbamate; (2) benzoyl chloride to give b -chloroallyl benzoate, and (3) dry benzene and ethyl chlorocarbonate to give b -chloro-allyl ethyl carbonate. Specifications 576,022 and 576,023 are referred to.
Patent GB-1097072-A (GB)
Title: Substituted 1,2-cycloalkylene-5-oxo-2-imidazolines
Inventor: GRIOT RUDOLF GUSTAV
IPC: C07D211/72
Filed: 1965-03-03
Abstract: Compounds of the formula <FORM:1097072/C2/1> wherein R1 is hydrogen or C1-C3 alkyl; R2 is hydrogen, C1-C3 alkyl, phenyl, benzyl, p-hydroxybenzy or m,p-dihydroxybenzyl; R3 is hydrogen or C1-C3 alkyl and n is 2 or 3 (with the proviso that when n is 3 R1, R2 and R3 may not all signify hydrogen) and acid addition salts thereof and preparation thereof from compounds of the formula <FORM:1097072/C2/2> wherein R1, R2, R3 and n have the above significance by an intramolecular cyclization involving the elimination of water, e.g. on refluxing in toluene or toluene and dimethylformamide with a trace of p-toluenesulphonic acid.  Pharmaceutical compositions, suitable for parenteral, enteral or rectal administration, which contain a compound of the first general formula above and/or a physiologically acceptable salt acid addition salt thereof together with an inert physiologically acceptable carrier, have reversible short-acting mono-amine oxidase inhibiting activity and act as psychic energizers as well as sedatives and can be used as blood pressure lowering agents. Specified compounds also have diuretic activity.  The preparation of 5-oxo-1,2-tetramethylene-2 - imidazoline; DL - 4 - (p - hydroxybenzyl)-, DL - 4 - benzyl-, DL - 4 - phenyl-, DL - 4-(m,p - dihydroxybenzyl)-, DL - 4 - methyl- and 4,4 - dimethyl - substituted 5 - oxo - 1,2 - pentamethylene - 2 - imidazoline; 2,8 - dimethyl-1,7 - diazabicyclo[4,1,0]non - D 6,7 - en - 9 - one; and 2 - methyl - 1,8 - diazabicyclo[5,3,0]dec-D 7,8 -en-10-one is described.  N - (Piperidylidene - 2)- and N - (perhydro-azepinylidene - 2) - substituted a  - amino-carboxylic acids corresponding to the second general formula above are preferably prepared by condensing a compound of the formula <FORM:1097072/C2/3> wherein R4 is methyl or ethyl and R3 and n have the above significance, with an appropriately substituted a -amino-acid by refluxing the reactants in an inert organic solvent.  The preparation of N-(7-methyl-perhydroazepinylidene-2)- and N-(piperidylidene-2)-substituted aminoacetic acid and N-(6-methylpiperidylidene - 2)- and N - (perhydroazepinylidene - 2) - 3 - (3,4 - dihydroxyphenyl) - substituted a -aminopropionic acid is described.
Patent GB-727446-A (GB)
Title: Improvements in or relating to motion picture projectors
IPC: G03B21/43
Filed: 1953-04-01
Abstract: 727,446. Kinematograph apparatus. KODAK, Ltd. April 1, 1953 [April 1, 1952], No. 9040/53. Class 97 (1). The Specification describes two arrangements of clutches and slipping and free-wheel drives for providing forward and reverse winding and rewinding. In the form shown the drive through the belt 23 and pulley 22 rotates, through the worm 21, the worm-wheel 20, anticlockwise for forward film feed, to drive, through a pawl 29 and ratchet 28, the slipping belt driving the lower, take-up spool. When the direction of the drive is reversed, for reverse winding, the pawl rides over the ratchet and allows the spool drive to free-wheel. A pulley 50; however is rigidly secured to the spindle of the worm-wheel 20 and drives a pulley 52 through a belt 53 which provides a slipping drive to the upper spool, when acting as take-up spool during reverse winding, through a ratchet wheel 55 driving a ratchet 56, carried by a pulley 35 driving the spool through a non-slipping belt 36, the rotation being clockwise. Meanwhile the spindle 15<SP>1</SP> on which the pulleys 35 and 52 are loosely mounted is being rotated in the opposite direction by a wormwheel 19 engaging the worm 21. For rewinding the direction of the main drive is the same as for forward winding, the assembly of pulleys 35 and 52 being slid along the spindle 15<SP>1</SP> by operating means, not shown, until clutch members thereon engage the wormwheel 19 and provide a positive drive therefrom to the take-up spool through the belt 36. The pawl and ratchet 55, 56 free-wheel but a drive is provided to the lower spool,- as in forward winding, to tension the film. In a modification the wheels 19 and 20 are spur wheels driven in the same direction through an idler pinion. In this form reverse winding and rewinding are secured with the same direction of the main drive. The changes in relative directions of rotation, as compared with the embodiment shown, result in there being no forward drive applied to the lower spool during rewinding. There is, however, a tendency for the spool to rotate at such a speed that the ratchet 29 would need to rotate faster than the ratchet 28 and, being restrained by the ratchet, a frictional retardation is provided by the belt 27 slipping. The spindles 15<SP>1</SP> and 18<SP>1</SP> carrying the wheels 19 and 20 also carry the top and bottom feed sprockets, not shown. The operating lever for the clutch member which engages the wheel 19 for rewinding carries an indicator member which projects in the rewind position, into the threaded film path as a reminder that the film should not be so threaded during rewinding.