baber/WOPTO huggingface dataset:
Patent GB-359180-A (GB)
Title: Improvements relating to the production of alkyl ethers of alkaloids
Filed: 1930-10-04
Abstract: Ethers of harmol and harmalol.-O-Alkyl and O-substituted alkyl derivatives of harmol <FORM:0359180/IV/1> and of harmalol, its dihydro derivative <FORM:0359180/IV/2> higher than the methyl ethers, are obtained by treating the alkaloids in presence of caustic alkali, e.g. soda or baryta, with alkyl or substituted alkyl salts.  The following examples are specified.  (1) O-n-Propylharmol is obtained by boiling under reflux a solution of harmol and n-propyl bromide in alcohol containing aqueous caustic soda, evaporating off the solvent, removing unchanged harmol and any N-propyl harmol from the residue with caustic soda solution, and re-crystallizing from alcohol. (2) O-Isopropylharmol is similarly obtained using isopropyl bromide.  (3) O-n-Butylharmol is similarly obtained using n-butyl bromide; the hydrochloride has a high Rideal-Walker coefficient, probably above 200.  (4) O-n-Butylharmalol is similarly obtained from harmalol and n-butyl bromide and is purified by recrystallization of the hydrochloride.  The latter has a Rideal-Walker coefficient of approximately 100.  (5) O-n-Heptylharmol is similarly obtained from harmol and n-heptyl bromide.  (6) O-n-Dodecylharmol is similarly obtained from harmol and lauryl bromide.  (7) O-Diethylaminoethylharmol is obtained by heating under reflux a solution of harmol and b -chlorethyldiethylamine in aqueous caustic soda, cooling, extracting with chloroform, treating with excess of hydrochloric acid, precipitating the dihydrochloride with acetone, recrystallizing it, and converting it into the free base by treatment with caustic soda.  (8) O-Benzylharmol is obtained by heating under reflux harmol and benzyl chloride in alcohol containing aqueous caustic soda concentrating, purifying by treatment with caustic soda solution, converting into the hydrochloride, recrystallizing the latter from acetone-alcohol and converting it into the free base. (9) O-n-Propyl-harmalol is obtained by heating under reflux harmalol and n-propyl bromide in alcohol containing aqueous caustic soda, dissolving the product in alcohol and concentrated hydrochloric acid, separating the crystalline hydrochloride, and converting it into the free base by addition of ammonia to an alcoholic solution.  (10) O-n-Nonylharmol is obtained by heating under reflux harmol and n-nonyl bromide with caustic soda in alcohol, distilling off the alcohol, washing the residue with dilute caustic soda and purifying it by conversion into the hydrochloride and reconversion of the latter into the free base by treatment with ammonia.  (11) O-n-Amylharmol is obtained by interaction of harmol and n-amyl bromide in alcohol containing caustic soda removing the alcohol, washing the residue with dilute caustic soda and purifying it by recrystallization from dilute alcohol.  The invention includes the production of other higher O-alkyl derivatives of harmol and harmalol, e.g. the ethyl, isoamyl, n-hexyl, n-octyl, secondary octyl, n-decyl and iso-decyl derivatives, n-amylharmalol and n-monylharmalol.
Patent GB-270172-A (GB)
Title: Contact device for electric signalling apparatus
IPC: H01H3/14
Filed: 1926-11-24
Abstract: 270,172. Rado, L., and Modern, J. Aug. 25, 1926, [Convention date]. Retractive switches.- A contact device which, when placed under floor or wall coverings, is adapted when depressed to complete a signalling circuit comprises two thin conductive sheets 1, 2 separated by an insulating sheet 3 formed with perforations 4. The plates 1, 2 may consist of metal foil either as such or coated on paper, cardboard, or the like, or of thin metal fabrics. In place of an intermediate insulating sheet the inner surface of one or both of the plates may be partially covered by an insulating lacquer applied by means of a templet. Raised or thickened portions may be formed on the outer sides of the device at places beneath which exposed contact surfaces are situated.
Patent GB-1039006-A (GB)
Title: Improvements relating to apparatus for feeding livestock
IPC: A01K9/00
Filed: 1964-07-28
Abstract: 1,039,006. Livestock feeding devices R. E. SPALTON. July 26, 1965 [July 28, 1964], No. 29954/64. Heading A1M. Feeding apparatus comprises a bulk feed tank from which liquid food is pumped along a flow line provided with a number of branches 10 each of which is connected to a vessel 21 adapted to receive a predetermined amount of liquid and having an outlet provided with a feeding teat 50. A float 36 is carried by a threaded rod 28 formed with a bulbous part 27 engaged on respective sides by a spring-loaded peg 33 and a plug 25 located within passage 13 communuicating with branch 10, the arrangement being such that liquid pumped along passage 13 moves plug 25 thereby depressing part 27 and moving peg 33 outwardly so that the rod and float are free to fall under gravity. As liquid enters vessel 21 via passages 13, 18 and spreader 22, the float rises until part 27 pushes over peg 33 and displaces plug 25 to shut off the flow of liquid. A light-weight ball 42 is located adjacent the vessel outlet and seals the outlet when the vessel is empty. The bulk-feed tank receives milk powder and hot water and is provided with a mixing device and the pump is automatically stopped when all vessels 21 are filled.
Patent GB-242804-A (GB)
Title: Improved joint for connecting the sections of jigging conveyors
IPC: B65G27/00
Filed: 1924-12-05
Abstract: 242,804. Plitt, J., and Schmitt, H. Dec. 15, 1924. Addition to 242,799. Jigging conveyers.- A plate 16, Fig. 2, is secured to the vertical member of the bolt 9 of the parent Specification and bears against the plate 4. The engaging surfaces are preferably cylindrical. When a guideway 14, Fig. 5, is provided on the bolt as described in Specification 226,799, the upper surface of the guideway is arranged to bear against the plate 4.
Patent GB-1285454-A (GB)
Title: Improvements in or relating to energy regulators
Inventor: BURNHAM REGINALD PHILIP
IPC: H01H37/12
Filed: 1969-06-13
Abstract: 1285454 Thermal switches DIAMOND H CONTROLS Ltd 8 June 1970 [13 June 1969] 30120/69 Heading HlN An energy regulator for controlling the supply of current to a load such as a domestic cooker comprises a rigid lever 24 pivoted about an axis 26 by a current setting device 18-20; a bimetal blade 29, heated by a heater 30 and fixed at one end to the lever 24; and a snap-acting contact arrangement actuated by bending of the bimetal blade. The free end of bimetal 29 acts through an ambient temperature compensating bimetal lever 32 and a ball 34 upon a trifurcated blade spring 35 pivoting upon the shaped head of a bolt 36 to open contacts 37, 42. The heater 30 is mounted on and electrically connected to bimetal 29 by a spring 31 and is connected at the other end by a flexible conductor (47, Fig. 2, not shown) to a neutral terminal (48) through an auxiliary switch (Fig. 3, not shown) operated by a cam 18 on a current setting spindle 17. The spindle 17 carries a face cam 19 acting through a push rod 20 upon a range setting screw 22 carried by the lever 24. Rotation of the spindle 17 by a knob (not shown) thus shifts the bimetal element and thus adjusts the temperature at which it actuates the contacts. The auxiliary switch interrupts the connection from the heater 30 to the neutral terminal in both the off and maximum positions of the knob. A second pole of the auxiliary switch may interrupt the connection between a fixed contact 43 and a line terminal in the off position. The cam may be symmetrical so that the knob can be rotated in either direction from a central off position; further contacts (62, 65, Fig. 3, not shown), operated by another cam on spindle 17, then connect a second load if the knob is rotated in one direction. The last contacts may be mounted by a plug and socket connection (Fig. 4, not shown) allowing rapid removal.
Patent GB-1105166-A (GB)
Title: Preparation of decarbonylation and dehydration products of alpha-hydroxylamino-carboxylic acids
IPC: C07D201/08
Filed: 1965-07-15
Abstract: Decarbonylation and dehydration products are obtained by contacting an a -hydroxyl-amino-carboxylic acid with a strong acid at a suitable temperature to evolve CO and H2O. Suitable acids are H3PO4, polyphosphoric acid, HCl, H2SO4, a mixture of H2SO4  and oleum, or a mixture of liquid SO2 and SO3.  In examples, a  - hydroxylamino - cyclohexane carboxylic acid and -cycloheptane carboxylic acid give e -caprolactam and o -oenantholactam respectively, a  - hydroxylamino - valeric acid gives butyramide and a -hydroxylamino-isobutyric acid gives acetoxime or N-methylacetamide, depending on the temperature.
Patent GB-222003-A (GB)
Title: An improved gas producer
IPC: C10J3/00
Filed: 1923-11-30
Abstract: 222,003. Warnant, E. Nov. 30, 1923. Producers.-A gas producer is provided with means for introducing into the combustion zone a liquid, gaseous or pulverized solid combustible so as rapidly to modify the gas output in accordance with the amount of gas withdrawn from the producer. The auxiliary combustible is fed by means of an injector the action of which may be controlled bv hand, by the variations in pressure in the gas outlet conduit or by a thermostat in the gas outlet. The gases resulting from the injection of combustibles are transformed into poor gas during their passage through the fuel column. In a modification, the combustible may be introduced with the main air blast.
Patent GB-230154-A (GB)
Title: Improvements in the method of, and apparatus for, regenerating kinematographic films
IPC: G03D15/00
Filed: 1923-11-30
Abstract: 230,154. Stock, F. J. J. Nov. 30, 1923. Finishing. - Kinematograph films are regenerated by treating both the emulsion side and the back of the film with solvents, free from non-volatile oilv substances, which cause a swelling and superficial liquefaction thereof sufficient to close crevices due to scratches or the like. In the process described, the film d, Fig. 1, passes from reel b, past cleaning brushes g, into chamber h where the emulsion side is treated with a solvent which may consist of water at about 60‹ to 70‹ C. acidulated with acetic acid and preferably containing a suitable tanning agent to prevent running. The solvent is applied by a rapidly rotating roller j and a nozzle i, which sprays it on both film d and roller j. Excess of liquid is removed by wipers l, l<1>. The film passes over a feed sprocket e, into a chamber a<1> in which it is treated with a hot air stream, and thence into a chamber h<1>, similar to chamber h, where the back of the film is treated with a solvent which, if the film is celluloid, may consist of a mixture of acetone and acetic acid, to which are added substances, such as camphor dissolved in trichlorethylene and phthalic acid ester, for restoring pliability. The film then passes through a chamber a', where it is treated with the vapour of the solvent used in chamber h<1>, and on to a take-up reel c. In the chambers a<1>, a<2> the films pass, with the side last treated outwards, over upper toothed rollers m<1>, m<2> secured to a driving shaft m and separated by flanged discs q<1>, q<2> and under lower loose weighted rollers p', p<2>. Below rollers p<1>, pa, p<3> are electric contact devices s', s<2>, s<3> which are closed, when a roller drops on to them, to operate a signal and stop the apparatus. The solvents are fed from containers k, k', Fig. 2, through pipes 11 to the nozzles i, i<1> which are adjustable in position and operate under air pressure from a pump z. Excess of solvent passes through outlets x, x<1>, and containers y, y<1>. The level of the solvents in the containers k, k<1> is automatically kept constant by siphon or like devices connected to reservoirs 2 which are each provided with an electric contact device 9, 10 operated by a float 7 to give warning when refilling is required. The air blast for the chamber a<1> is circulated by fans n, n<1> over shelves v carrying hygroscopic material, such as calcium chloride, and past electric heaters back to the chamber. The apparatus is driven through belts and pulleys from an electric motor o. A small quantity of a binding material or materials, such as gelatine or isinglass, may be added to the solvents to improve their adhesion to the film. Specifications 22867/99 and 17232/04, [both in Class 70, India-rubber &c.], are referred to.
Patent GB-457702-A (GB)
Title: Improvements in and relating to apparatus for refining fibrous material in a liquid medium
IPC: B02C4/10
Filed: 1935-03-28
Abstract: This Specification has subject-matter included in Specification 457,654 but claims independently the means for accumulating large particles &c. on the inlet side of the treatment zone, and their discharge through a trash outlet and valve.  Specifications 477,701 and 458,919 also are referred to.
Patent GB-1434652-A (GB)
Title: Semiconductor devices
IPC: H01L29/00
Filed: 1973-06-26
Abstract: 1434652 Field effect transistors SONY CORP 26 June 1973 [30 June 1972 10 Jan 1973] 30324/73 Heading H1K The gate region of a JUGFET is contacted via a PN diode junction so that when the gate is biased to switch the transistor on charge is temporarily stored in the gate region to delay switching. A typical device is shown in Fig. 3. Region 2 is formed by epitaxial deposition and the gate region 5,5 Á deep, and the diode junction-forming and source and drain regions 6, 3, 4, each 1 Á deep, formed by successive diffusion steps. The passivating oxide 7 is transparent and the electrodes of restricted size so that the gate junction can be illuminated. In operation charge is stored in gate region 5 on switching the gate from a reverse to zero bias condition, and leaks away at a rate determined by the temperature and intensity of illumination. Thus, by applying an A.C. signal to the gate the amplitude of the direct and alternating components of the source-drain current, which will be functions of temperature and intensity of illumination can be used as a measure of one of these parameters. In a modified structure storage time can also be controlled by injection of holes into the gate region from an electroded P + region which is located in the epitaxial layer adjacent the source or drain or in the diode forming region 6, or is constituted by the substrate.
Patent GB-684488-A (GB)
Title: Improvements in or relating to vehicle lubrication systems
Inventor: TARLTON FRANK HENRY
IPC: B60R17/00
Filed: 1949-11-25
Abstract: 684,488. Ratchet clutches & gearing; couplings. ROLLS-ROYCE, Ltd. Nov. 27, 1950 [Nov. 25, 1949], No. 30330/49. Classes 80 (ii) and 80 (iii). [Also in Groups XXVIII and XXXIV] In a lubricating pump driving mechanism, the drive passes through a free-wheel device and lost-motion device arranged in series. The freewheel device comprises a spring 39 wound on the hub 37a of a driving gear wheel 37 and on an intermediate member 38, so that the spring tightens about the members 37a, 38 during drive in one direction. The member 38 is freely mounted on a driven shaft 20b and has abutments 38a, Fig. 4, which engage a pin 40 on the shaft 20b, thus constituting the lost-motion device. The pump may be primed manually by means of ratchet mechanism comprising a lever 43 pivoted at 44 and carrying a pair of spring pressed pawls 46, 47 engaging ratchet teeth 41 on a crank disc 20. The pawl 46 prevents backward rotation of the disc 20.
Patent GB-1021030-A (GB)
Title: Input-output section
IPC: G06F5/06
Filed: 1963-07-31
Abstract: 1,021,030. Delay line stores. GENERAL PRECISION July 31, 1963 [Sept. 4, 1962], No. 30335/63. Heading G4C. A recirculating delay-line buffer store employing, for example, a fused ground quartz delay line, stores a number of interlaced data words, one bit-position in each being reserved for part of a control word which may be selected and staticized for addressing a computer. As shown, the read and write circuits are synchronized by a clock 30, the output of which is frequencydivided by six for control of entry and output of five interlaced data words A-E, a word F with its first bit position 1 and remaining positions 0 being also interlaced with them. The 1-bit of F is generated by a start switch 50 which sends a pulse to gate 18 to allow the first pulse from 32 to be entered into the line 10, and also to switch Q1 to gate in the first bits of words A-E at successive bit times (34-42 provide 1-bit delays). Gate 18 is closed for the second F bit so that a binary 0 is entered, but successive data-bits of A-E are entered until the first bit (the 1-bit of F) is read at 14 and re-sets Q1; thereafter the data circulates unchanged. The read-out data is passed to a tapped delay unit so that pulses from 32 gate out the A-E words from successive taps, and the first such pulse gates the 1-bit of F to set Q2 and copy the first bit of each A-E word into 90, the second F bit resets Q2 so that this control word of 5 bits remains undisturbed in 90 and may control the addressing of a computer via 92.
Patent GB-1322969-A (GB)
Title: Method for coupling of polymers
IPC: G01N33/543
Filed: 1970-12-18
Abstract: 1322969 Cortisone and oxytocin derivatives EXPLOATERINGS AB TBF 18 Dec 1970 [18 Dec 1969 8 April 1970] 60336/70 Heading A5B [Also in Division C3] In examples, cortisone is bound to an acrylic resin and to carboxymethyl-substituted crosslinked dextran, and oxytocin is bound to an acrylic resin, by means of 3-dimethylaminopropyl isonitrile.
Patent GB-1106384-A (GB)
Title: Improvements in or relating to louvred ventilators
Inventor: PRICE FREDERICK WILLIAM
IPC: F24F7/00
Filed: 1963-07-31
Abstract: 1,106,384. Ventilators. COLT VENTILATION & HEATING Ltd. 2 Nov., 1964 [31 July, 1963], No. 30395/63. Addition to 1,069,871. Heading F4V. A ventilator comprises two parallel banks of louvres as described in Specification 1,069,871 below which is a sill 15 formed by a plate having an upwardly extending extension 17. on the inside of the ventilator and having an edge 16 projecting in front of the ventilator to collect and discharge rainwater from the ventilator. The louvres may be adjustable.
Patent GB-408711-A (GB)
Title: A new or improved device for recovering or retrieving loose metallic parts from inaccessible places
IPC: B25B27/00
Filed: 1932-10-31
Abstract: 408,711. Reachers. MOSS, F., 80, Bull's Head Lane, Stoke, Coventry. Oct. 31, 1932, No. 30450. [Class 61 (ii).] A reacher for picking up small metal articles and comprising an iron or steel rod a around one end of which is wound an electromagnetic coil connected by a flexible lead d to an electric battery &c., is provided with a tip a<2> which is flexible or flexibly mounted. A sheath c encloses the coil. The tip a<2> of the rod may comprise a blade spring or be rigid and connected to the rod by a coil spring f. A loop handle a<1> is provided. The rod may be telescopic and may have a disc shaped tip to adapt it to pick up balls for introduction to a ball bearing.
Patent GB-1224765-A (GB)
Title: A machine for fabricating storage battery sub-assemblies
Inventor: FARMER JOHN EDGAR
IPC: H01M50/536
Filed: 1968-06-26
Abstract: 1,224,765. Composite casting machines. FARMER MOLD & MACHINE WORKS Inc 26 June, 1968 [29 June, 1967], No. 30561/68. Heading B3F. [Also in Division H1] A machine for casting a connection strap over a set of battery plates comprises four stations 24, 26, 28, 30 and four battery plate carriers 40 which are indexed between the stations by rotation about a post (38) by a Geneva mechanism. The machine operates as follows. Loading station 24.-The carrier (40) (having walls 63, Fig. 9) is tilted through 45 and a bottom member 110 is brought up to the base of the carrier. Battery plates 12, 14 are loaded between members 79 (see Fig. 1). The members 79 are slid telescopically along the longitudinal axis of the carrier to grip the battery plates. Fluxing station 26. The battery plate carriers 40 are inverted so that the battery plate lugs 22 (see Fig. 9) point downwards. The post (38) is lowered to press the lugs 22 into foam rubber pads (119) socked in flux. Casting station 28. The fluxed plates are carried to a point above a cooled mould block 124 (Fig. 6) having two rows of cavities 127 which form straps between the battery plates. Each cavity 127 is integral with a further cavity 128, 129 for forming a post. Molten lead from a vessel 29a is fed through conduits 144a, 144b to a heated manifold 145 on each side of the mould block 124. Each cavity 127 is supplied with lead from a valve and nozzle block 148. When the cavities 127, 128, 129 are full the carrier 40 is lowered immersing the lugs in the molten lead. In addition to coolant passages 141a, 142a the mould block 124 has a heater 139 and is thermostatically controlled. To remove the cast battery parts from the mould block ejectors 130, 131 are actuated. The finished articles are unloaded at a station 30 where the gripping members 76 are telescopically extended.
Patent GB-408172-A (GB)
Title: Improvements relating to barless grate fronts for stoves and fireplaces
IPC: F24B1/192
Filed: 1933-11-04
Abstract: 408,172. Domestic fire grates. HERBERT, M. D., 652, Alexandra Parade, Glasgow. Nov. 4, 1933, No. 30675. [Class 126.] A barless grate front fitting, particularly for range grates, is formed with an elongated narrow vertical projection 11 at each side with which are associated removable slotted plates 12 the slots 13 in which fit the projections and which are of a size to fit the vertical grooves in the grate jambs from which the normal front bars have been removed. By the use of plates 12 of a suitable size the barless fitting may thus be adapted to be used in grates having various sizes of grooves. The plates 12 preferably extend above the notches 8 in which rests a cross-bar 17, which is thus retained against lateral movement. Feet or ribs 14 on the under side of the barless grate front rest on the flat top face of the bottom grate frame. The front shown is formed with alternate ribs and slots 6, 7.
Patent GB-1271162-A (GB)
Title: Improvements in and relating to a method of cooking chicken
IPC: A23L13/50
Filed: 1970-05-13
Abstract: 1,271,162. Cooking chicken. MIES FILTER PRODUCTS Inc. 13 May, 1970 [14 May, 1969; 1 April, 1970], No. 30748/71. Divided out of 1,271,161. Heading A2E. [Also in Division A4] Chicken, having a temperature of about 45‹F, is immersed in cooking oil, which is preheated to about 400‹F, in a pressure vessel, the ratio of chicken to oil being approximately 1 pound to 2 pounds. The chicken is allowed to brown at atmospheric pressure e.g. for one to one and a half minutes, and the vessel is then closed and the chicken is cooked under a pressure of between 14 to 15 p.s.i.g. for about 9 minutes, the surface temperature of the chicken being maintained at approximately the boiling point of water during these steps. The chicken is preferably breaded prior to cooking and the cooking oil is high smoke point cooking oil. The desired pressure conditions are allowed to build up as a result of moisture in the chicken converting to steam. The heat source is cut off when the desired pressure conditions are reached.
Patent GB-520632-A (GB)
Title: Improvements in and relating to life guards for vehicles
IPC: B60R21/34
Filed: 1938-10-25
Abstract: 520,632. Vehicle lifeguards. DUNN, J. Oct. 25, 1938, No. 30801. [Class 103 (ii)] A lifeguard for vehicles comprises a guard proper 10 pivotally supported under the front part of the vehicle by rods 11 acted on by springs 14 tending to urge them in forward direction but retained in normal position by catches 7 engaging a cross bar extending between the rods 11 ; a vertical member 2 at the front of the vehicle is mounted on links 3 so that when it encounters an obstacle it actuates rods 5 connected to the catches 7 thereby releasing the latter from the cross bar, thus allowing guard 10 to fall and to be thrust forward by the springs 14. The front of the guard 10 has attached thereto a flexible apron wound on a roller 20 carried by the front member 2 and a drum and cable may be provided to retract the guard 10. In the modification shown in Fig. 7 a stop 28 on a pivoted arm 26 controlled by a governor 25 engages one of the notches 7 and prevents actuation of the guard when the vehicle is at rest.