baber/WOPTO huggingface dataset:
Patent GB-367420-A (GB)
Title: Improvements in vat dyeing and stripping
Filed: 1930-11-15
Abstract: The process of dyeing textiles, especially closely woven or twisted materials, with vat or sulphur dyestuffs, or stripping such dyestuffs from textiles dyed therewith, is carried out in aqueous baths containing, in addition to alkali and a reducing agent, e.g. hydrosulphite or sodium sulphide, from viscous to solid polymerization products of ethylene oxide, which are obtainable by acting with strong alkali on ethylene oxide in accordance with the process of Specification 346,550.  Examples are given (1) of the dyeing of mercerized pearl yarn and closely woven linen material with Indanthrene blue G.C.D. or Indanthrene violet 2 R extra; (2) of the stabilization of vats containing indigo or Indanthrene yellow G.; and (3) of the stripping of calico dyed with Indanthrene violet 2 R. or Indanthrene blue green B.
Patent GB-812543-A (GB)
Title: Improvements in or relating to ª‡-amino acids and peptides derived therefrom
IPC: C07K1/00
Filed: 1955-12-01
Abstract: The invention comprises N:N-dibenzylated a -amino acids of the formula: <FORM:0812543/IV (b)/1> (wherein R1 is alkyl, aralkyl or R1-CH2, R1 being a heterocyclic group, which may be hydroxylated and, when R1 is aralkyl, may contain the group -X-CH2-C6H5 wherein X is a phenolic oxygen atom), and the preparation of N:N-dibenzyl a -amino acids in general and of N:N-dibenzyl peptides derived from a -amino acids by reacting the racemic or optically active acid or peptide in a solvent therefor, e.g. an aqueous lower alkanol, with 3 to 10 times and preferably 4 to 6 times the theoretical quantity of a benzyl halide in presence of an alkaline condensing agent, e.g. an alkali metal hydroxide acidifying the reaction mixture, extracting the benzyl ester of the required product with a water-immiscible solvent, saponifying this ester so that the N:N-dibenzyl group remains unaffected and extracting the required product.  The process may be modified by prolonging the reaction times in the condensation process, thus eliminating the performance of the saponification step as a separate stage.  The process results in the benzylation of any phenolic groups present in the amino acid or peptide while alcoholic hydroxy groups remain unaffected.  The process may also be used to effect the N - N-dibenzylation of carboxy-derivatives of a -amino acids which may be stable or unstable under the reaction conditions. For example, esters may be converted directly to the corresponding N:N-dibenzylated aminoacids.  Peptides suitable for use in the process of invention include glycyl - glycine, glycyl - serine, glycyl - tryptophane, glycyl - valine, glycyl - glutamic acid, alanyl - tryptophane, alanyl - a  - amino - butyric acid, leucyl-tryptophane and alanyl-tryptophyl-a -amino-butyric acid.  In examples: (1) DL-alanine in alcohol is refluxed with potassium hydroxide solution and excess benzyl chloride, alcohol is distilled off, and the residue is acidified with acetic acid and extracted with chloroform and after removal of the solvent is refluxed with potassium hydroxide solution in propylene glycol to give, on working up, DL-N:N-dibenzyl-alanine; (2) L-(-)-leucine is similarly converted to L-(-)-N:N-dibenzylleucine, which on hydrogenolysis gives the starting material again; (3) L-(-)-tyrosine is similarly converted to L-(-)-O,N,N-tribenzyl tyrosine, which on hydrogenolysis at 70 DEG  C. in ethanol and in presence of Hcl and palladiumcarbon gives the starting material again; (4) DL-serine in alcohol is refluxed with sodium hydroxide solution and excess benzyl chloride, the alcohol is distilled off, potassium hydroxide solution is added, extraction with petroleum ether is effected, the aqueous extract is acidified and extracted with chloroform and the solvent is removed to give DL-N:N-dibenzylserine; and (5) by a similar method, DL-threonine is converted to DL - N:N - dibenzyl - threonine.  Specifications 770,575, 812,541 and 812,542 are referred to.
Patent GB-1457207-A (GB)
Title: Cutters for vegetable matter
IPC: F02B1/04
Filed: 1974-08-06
Abstract: 1457207 Portable cutter with detachable wheels J A G LAMB 9 July 1975 [6 Aug 1974] 34489/74 Heading A1F A rotary cutter member 3 is driven from a petrol engine 4 or an electric motor by means of a V-belt 5 and pulleys 6, 7 or a chain and sprocket arrangement housed in a casing 2, handles 9, 10 allowing an operator to support the cutter; alternatively the cutter 1 may be supported by detachable wheel assemblies 45, 47 for propulsion by means of a handle 50 or the engine 4. The carburettor 23 of engine 4 is rotatable relative to the engine to permit operation on slopes. The casing 2 comprises an inner lower part 2b which fits into an upper outer part 2a and a cutter guard 38 may be connected to the casing. Rotary cutter member 3 comprises blades 37 or a series of nylon filaments.
Patent GB-907669-A (GB)
Title: Method of constructing storage tank structures
IPC: E04H7/18
Filed: 1960-10-07
Abstract: 907,669. Tanks. SVENSKA B.P. OLJEAKTIEBOLAG. Oct. 7, 1960 [Oct. 8, 1959], No. 34509/60. Class 69 (1). A method of constructing a storage tank consists in building a container of concrete rings 2-2 on a concrete base 3, lowering an inner tank shell 5 into the container and filling the intervening space with cement mortar 8. The tank may be installed underground, emplacing the rings 2 by well-digging methods. The shell 5 is of sheet-metal construction and has a manhole 6-7. Anchor irons 15 and 16 extend from the concrete base 3 and cover 4 into the mortar 8. A tube 10 is provided for filling and a tube 12 for emptying the tank. A vent tube 13 connects with the top of the tank and an inspection tube 14 passes through its bottom.
Patent GB-1204578-A (GB)
Title: Stabilisation of aroma
Inventor: WONG WARREN
IPC: A23F3/42
Filed: 1968-07-19
Abstract: 1,204,578. Aromatic constituents of tea and coffee. UNILEVER Ltd. 19 July, 1968 [20 July, 1967], No. 34530/68. Heading A2B. Volatile aromatic constituents of tea and coffee are stabilized by separating an aqueous solution of the constituents from aqueous tea or coffee extracts, adding a stabilizing agent selected from water soluble carbohydrates and gelatins, and freeze-drying to obtain a water-soluble stable aromatised powder which releases the aroma upon addition of water. Prior to freeze-drying the solution may be concentrated. Suitable stabilizing agents include poly-, mono-, and di-saccharides, malto-dextrin, gum tragacanth, locust bean gum, pectins, hexitols, and gelatins. The products may be blended with instant tea and coffee, or used as flavouring for other beverages and desserts.
Patent GB-507301-A (GB)
Title: A toeing line or floor strip for games such as darts and the like
IPC: F41J3/00
Filed: 1938-11-28
Abstract: 507,301. Darts and like games ; retractive switches. WARREN, E. H. Nov. 28, 1938, No. 34568. [Classes 132 (ii) and 132 (iii)] [Also in Group XXXVII] Apparatus for playing games such as darts comprises a dartboard 16, Fig. 10, or like ,playing board having a visible or audible warning device 18 combined therewith, and a spring- controlled floor strip forming a toeing-line 19, let into. or mounted on the floor and adapted, when trodden on and depressed, to close the circuit of the warning device and thereby indicate that the player is standing at an incorrect distance from the board. The floor strip 4, Fig. 3, may carry brass contact strips 5 extending the length of the floor strip and cooperating with similar strips 3 on a lower rail 2, the brass strips being electrically connected to a bulb or bell in the warning device. Screws 9 limit the relative movement. A rubber cover 10 is secured in place by a slotted plate 11. Blade springs 6 normally separate the contacts.
Patent GB-1122770-A (GB)
Title: Washing and stone-removing device for grain
Inventor: ALBREGHT PAUL
IPC: B02B1/06
Filed: 1967-07-27
Abstract: 1,122,770. Washing and cleaning grain. MUHLENBAU DRESDEN VEB. 27 July, 1967, No. 34610/67. Heading A2Q. A device for washing and removing stones from grain comprises a washing trough 1 in which are disposed an upper and lower pair of conveyer worms 2, 2<SP>1</SP>, 3, 3<SP>1</SP> which have at the ends of their shafts worm wheels 9, 9<SP>1</SP>, 10, 10<SP>1</SP>, and which are driven by driving element 4 via a worm gear 5 which is mounted vertically between the conveyer worms and has two worms 6, 7 engaging with the worm wheels. One of the worms of the gear 5 may have a left hand thread, and the other may have a right hand thread. The upper pair of worms 2, 2<SP>1</SP> convey the washed grain to a centrifugal drier and the lower pair 3, 3<SP>1</SP> convey the stones to an outlet.
Patent GB-365701-A (GB)
Title: Improvements in automatic couplings for railway vehicles, specially applicable to toy railways
IPC: A63H19/18
Filed: 1930-11-18
Abstract: 365,701. Automatic couplings for railway vehicles ; toys. HORNBY, F., 236, Binns Road, Old Swan, Liverpool. Nov. 18, 1930, No. 34652. [Class 103 (v).] In an automatic coupling for railway vehicles, particularly toy vehicles, of the type in which each vehicle is fitted with a hook 2 and a pivoted link 7, the link being adapted to ride up the inclined face 4 of the hook and to drop into a recess 6 therein, the hook is formed from a .stamping integral with a sole plate 3 connected to the base of the vehicle body, and the stamping has upturned lugs 8 between which the link is pivoted. Preferably the sole plate is pivoted to the body by an eyelet 13 or similar means so as to permit the coupling to swing laterally on curves, and in the case of a Pullman carriage, a blade spring 19 may extend from the bogie to deflect the coupling on curves and to centralize it on a straight track. The link 7 is formed with a curved front edge 7a of substantial width having a bevelled forward edge 9 that co-operates with the inclined face of the hook 2 and, in effecting a coupling, finally engages an abutment 5 at the rear of the recess 6. For uncoupling purposes, pressure is exerted upon an arm 10 integral with and at one side of the link 7, a stop 11 being provided on a lug 8 to limit the lifting movement.
Patent GB-1125825-A (GB)
Title: Improvements in or relating to guttering
IPC: E04D13/064
Filed: 1966-08-03
Abstract: 1,125,825. Guttering. M. N. SHUTE and B. WADE. 27 Feb., 1967 [3 Aug., 1966], No. 34725/66. Heading E1B. A one-piece fascia-soffit-guttering unit moulded from fibreglass reinforced plastics comprises a soffit 2 a fascia 4 and a V-shaped guttering 6, longitudinal grooves 8, 8A and 10 being formed thereon. The unit is attached to a roof spar 20 by pins 22 having gaskets 24, the roof-felt overlapping the end of the guttering and a roof tile overlying the securing point. A similar pin passing through the groove 8 secures the soffit. The unit is bored to receive a fall-pipe 16 and one edge of the unit is joggled to overlie an adjacent unit. Corner units may be formed or the units may have integral or attached end plates. The soffit may be upwardly inclined away from the fascia, the gutter may be of U-shaped cross-section and the longitudinal grooves may be omitted.
Patent GB-921280-A (GB)
Title: New hydrazine derivatives
IPC: C07C255/66
Filed: 1961-09-27
Abstract: The invention comprises b -cyanopropionaldehyde azine and b -cyanopropionaldehyde hydrazones of the formula:-NC-CH2-CH2-CH=N-NRR1 wherein R represents hydrogen or a C1-4 alkyl group and R1 represents phenyl or a C1-4 alkyl group.  The above compounds are prepared by contacting an intimate mixture of succinonitrile and a hydrazine of the formula H2N.NRR1 with hydrogen in the presence of a hydrogenation catalyst, the ratio of succinonitrile to hydrazine when the latter reactant is unsubstituted being at least 2 to 1, in order to avoid the formation of unstable b -cyanopropionaldehyde hydrazone.  The above hydrazones may be converted to the corresponding 2,4-dinitrophenylhydrazone by reaction with 2,4 - dinitrophenylhydrazine.  Specification 918,668 is referred to.
Patent GB-321080-A (GB)
Title: Process for saponifying free fatty acids contained in vegetable and animal oils and fats with alkali solutions in vacuo
IPC: C11B3/06
Filed: 1928-11-26
Abstract: 321,080. Gensecke, W. Nov. 26, 1928. Fats and fatty oils, purifying.-In the removal of free fatty acids from animal and vegetable oils by heating in vacuo with alkaline solutions, the temperature is kept constant but the vacuum intensity is constantly increased until the soap is sufficiently concentrated to be filtered off. For example, during or after the neutralization of oil at 35-40‹ C. under a vacuum of 28 inches produced by a steam condenser, the vacuum is steadily increased to 29.9 inches by a steam injector between the neutralizing vessel and the condenser. Specification 229,283 is referred to.
Patent GB-310436-A (GB)
Title: Improvements in and relating to method of mounting and positioning the head lamps ofmotor road vehicles
IPC: B60Q1/064
Filed: 1927-12-23
Abstract: 310,436. Barker & Co. (Coachbuilders), Ltd., Ridlington, J., and Fensom, W. T. G. Dec. 23, 1927. Vehicle lamps, directing.-In means for dipping and swivelling the head-lights of a motor road vehicle, the lamps are mounted on stems 8 rotatable in brackets 3 carried by a rocking-shaft 5 having an arm 10 connected by a link 11 with an operating lever 12 adjacent the driver's seat, and the stems 8 are provided with arms connected by rods 18 to a double-acting piston 17 in a cylinder 15 secured to the shaft 5. The cylinder 15 is connected by pipes 22, 23 with a passage in the head 24 of the lever 12, a valve 25 being mounted slidably in the passage and provided with grooves 26, 26<1>, 28 so that either pipe 22, 23 can be put into communication with a pipe 29 leading to the induction pipe of the engine and the other pipe into communication with the atmosphere for swivelling the the lamps. The grooves 26<1> may be extended into the parts 25<1> so as to communicate with the pipes 22, 23 when the valve is in the central position in which it is held by a spring-pressed pin 30 engaging a groove 31. The dipping movement of the lamp is limited by stop screws 14 mounted in a bracket 13 on opposite sides of the arm 10. One of the stems 8 mav be provided with an extension having a ball-shaped end 32 adapted normally to engage cam surfaces 33 in a recess in a plate 35 fixed to one of the supports 1 of the shaft 5 so as to prevent swivelling of the lamps until they have been dipped. The parts 32, 33 also serve to return the lamps to, and maintain them in, the normal position. According to the first Provisional Specification, the valve forms part of a rotatable knob on the operating lever.
Patent GB-452961-A (GB)
Title: Improvements in rotary tooth-brushes
IPC: A61C17/26
Filed: 1935-12-18
Abstract: 452,961. Toothbrushes. BACHRICH, E., 55, Hietzinger Haupstrasse, Vienna. Dec. 18, 1935, No. 35102. Convention date, Dec. 19, 1934. [Class 19] A rotary power-driven toothbrush mounted on a spindle 7, Fig. 1, in the back of a casing 4 is characterized in that a driving spindle 2 extends to the casing wall and there carries a bevel wheel 5 so that the axis 7 of a driven wheel 6 connected to the brush back 9 is carried in the bottom of the casing 4. In a modification, Fig. 2, a shaft 7<1> passes through the casing 4<1> and has a seating head 11. A passage 18 allows water to escape. In a further modification, Fig. 3, two interengaging brushes 16, 17 are employed. Brush heads are interchangeable and can be unscrewed from their shafts by a suitable U-shaped key. The brushes are set preferably at an acute angle to the driving shaft. Instead of toothed wheels, friction wheels may be used.
Patent GB-157888-A (GB)
Title: Improvements in differential gear control mechanism
IPC: F16H48/30
Filed: 1920-12-14
Abstract: 157,888. Woodward, I. C. Jan. 20, 1920, [Convention date]. Differential or balance gearing suitable for motor-vehicles is adapted to be locked by a clutch 13, 14, Fig. 2, having dogs with inclined faces 15 adapted to yield on excess of strain. The gearing is of the ordinary bevel epicyclic type, side gears 11, 12, Fig. 1, being driven by gears 10 carried in a housing 7. One element 13 of the clutch is secured to this housing. The other element 14 has a hub 17 sliding on a squared portion of a part axle 4. The element 14 can be withdrawn from engagement by hand against the action of a spring 20 by rods 22.
Patent GB-843848-A (GB)
Title: Improvements in animal feeding appliances
IPC: A01K39/014
Filed: 1957-11-13
Abstract: 843,848. Animal feeding or drinking appliances. BATES, E. Oct. 3, 1958 [Nov. 13, 1957], No. 35323/57. Class 5(2). A feeding or drinking appliance for animals comprises a trough 30 mounted above the base of an opentopped container 10 with a view to preventing the spilling on to the ground and consequent wasting of the contents of the trough. The container 10, which may be of galvanised metal or fibre glass, is supported on legs 12 between which perches may extend if the appliance is for use with poultry, and has end plates 14 extending above the top of the container, the trough 30 being pivotally mounted between the said end plates. The trough is so mounted as to be adjustable in height, and means may be incorporated in the device whereby water is automatically supplied to the trough as the water content of the latter decreases. The container is surmounted by a grid 18 of spaced inverted V-shaped wires, pivotally attached to one side of the container.
Patent GB-354144-A (GB)
Abstract: 354,144. Circular knitting-machines. STANDARD-TRUMP BROS. MACHINE CO., Beach Street, Wilmington, Delaware, U.S.A.-(Assignees of Houseman, H. E.; Edgemoor, Delaware, U.S.A.) Dec. 4, 1930, No. 36605. Convention date, Jan. 23. [Class 74 (ii).] Relates to ratchet means for controlling the shogging movements of a wrap finger or fingers in relation to a circular series of needles. The wrap finger cylinder 8 is carried by a counter-balanced spindle 14 slidably and rotatably journalled in a bracket 16 carried by an upright 34. An arm 18 resting on the bracket 16 carries a key 21 extending with side play in an elongated slot 23 in the spindle. An arm 22 on the spindle extends between lugs on the arm 18 in which are adjusting screws 20. The key and slot ensure that excessive angular movement of the spindle does not occur during its rise and that the arm 22 moves between the screws during its descent. The arm 18 carries two circular racks 36, 38 with teeth equal in number to the number of and to half the number respectively of the needles in a given angle. Shogging is effected by a continuously rotating cam and bell crank 51 under control of a pattern chain 74 with plain links and with links bearing lugs of four different heights. If a plain link is under the follower, a sliding sleeve 60 and a segment 86 pivoted at 88 are held in their lowest positions, with a notch 94 opposite the pawl driving the rack 36. If plain links continue to move under the follower the rack 36 continues to be driven forward one needle at a time, forming a sloping wrap design in the fabric. If a lug comes under the follower the segment 86 is raised so that the cam edge 92 holds out the pawl while a pin 96 engages one or both detents holding the rack 38 the result being that the wrap fingers move back one or more needles according to the height of the lug. The highest lug trips neither detent and leaves the wrap fingers as before.
Patent GB-1195734-A (GB)
Title: Improvements in/or relating to processes and devices for Determining Densities of Solids
Inventor: RABARDEL LOUIS
IPC: G01N9/08
Filed: 1967-08-02
Abstract: 1,195,734. Measuring specific gravity. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Aug.2, 1967 [Aug.4, 1966], No.35458/67. Heading G1S. In apparatus for determining the specific mass of a sample e.g. powder, the sample P is placed in a container G supported by a thread 17 attached to one arm 2 of a balance such that the sample is weighed in air and degassed under vacuum in the same enclosure 6 and then reweighed when immersed in a fluid fed in from a reservoir 11. The enclosure is supported in a Dewar vessel 15 and a thermometer 9 is provided, in a modification. In a second embodiment, Fig. 5 (not shown), the enclosure for the fluid is divided by a position to avoid interference from bubbles from the end of the filler tube and a heater is also provided; the thermometer is in a sliding tube so that it may be withdrawn during heating.
Patent GB-408915-A (GB)
Title: Improved change speed gear device for bicycles
IPC: B62M9/124
Filed: 1933-12-16
Abstract: 408,915. Change-speed chain gearing. PERONA, G., CiriÚ, Turin, Italy. Dec. 16, 1933, No. 35466. Convention date, Dec. 17, 1932. [Class 80 (ii).] In variable-speed driving - mechanism for bicycles, of the type in which the chain is adapted to be selectively engaged by means of a movable sprocket with one of two or more sprockets of different diameters on the driven wheel, the movable sprocket is carried by a slide engaging a guide surface which is fixed to the cycle frame and is inclined with respect to the plane of the driven wheel in such a way as to move the sprocket laterally into the plane of the transmission sprocket to be engaged by the chain. The movable sprocket d is adjustably mounted by means of an arm r, a bolt f, and nuts g, h on a two-part slide e, which is moved by means of a cable n along a slotted guide plate a secured by means of a clamp b to the chain stay 5 and inclined as shown to effect the lateral movements of the sprocket. The slotted guide plate a is also inclined in a fore-and-aft direction, in order to vary simultaneously the distance of the sprocket d from the wheel axis and thereby facilitate engagement of the chain with a sprocket of different diameter. The chain is tensioned by means of a pulley j adjustably mounted on an arm i, which is pivoted to the slide e at m and is acted upon by a spiral spring l.
Patent GB-443746-A (GB)
Title: Improvements in and relating to self-contained electric generating systems
Filed: 1934-12-10
Abstract: 443,746. Self-contained supply systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and RAYDEN, R. G., 83, Vernon Avenue, Rugby. Dec. 10, 1934, No. 35481. [Class 38 (iv)] [See also Group XXVII] In a self-contained electric generating system, an internal-combustion engine is started by compressed air when the first current consuming device is switched in, and stops when the last device is switched out, a battery being employed solely for operating starting and other control relays. The engine A drives a generator G which supplies the main leads XY, the engine being started by a compressed air motor E supplied from the reservoir M. When any of the load elements L is connected across the mains XY by its double pole switch S, an auxiliary lead Z is connected to the main lead Y and a circuit is completed from the battery B through relay coil 3A, thus closing contacts 3A<1> by which the relays 1A and 2 are energized so as to open the fuel valve F and the air valve V. When the engine is up to speed, centrifugal switch D closes a circuit through relay 3 by which the main switch 3<2> supplying the main leads XY is closed, the switch i having been previously closed. At the same time, contacts 3<3> open and disconnect the battery B from the leads YZ, while contact 3<4> closes, thus enabling relay 5 to be energized from the leads XY whereby contacts 5<1> connect the battery to the mains through the automatic cut-in and cut-out switch C. The resistance R limits the charging voltage and also serves as an artificial load when the engine is running light. When the load on the system reaches a predetermined value, relay T is energized and through its contacts T<1> energizes relay 6 by which contacts 6<1> are opened and disconnects resistance R from the leads XY. When the pressure in the reservoir M falls to its lower limit, contacts b and a are closed. If the engine is running, contact a brings about operation of the electric motor L and air compressor K, while, if the engine is not running, contact b first starts it as described previously. When the last load switch S is opened, retaining coil 1 on the fuel valve F is de-energized and the engine stops.