baber/WOPTO huggingface dataset:
Patent GB-753613-A (GB)
Title: Process for the hydrolysis of proteins
IPC: A23J3/32
Filed: 1954-02-18
Abstract: Protein hydrolysates for protein therapy are obtained by hydrolysis with an aqueous solution of a strong mineral acid, e.g. hydrochloric or sulphuric acid, until over 60 per cent of the protein has been hydrolysed, in the presence of an agent adapted to inhibit tryptophan destruction and consisting of or liberating sulphur dioxide, e.g. sulphurous acid, sodium bisulphite, at a temperature not in excess of 100 DEG  C.  Proteins specified are casein, ovalbumin, lactalbumin, fibrin, gluten, soy protein and protein and egg albumin.  Maximum retention of tryptophan is obtained using about 1 N acid and about 29 grams of sulphur dioxide per litre of solution.  Sulphur dioxide may be removed from the hydrolysate by distillation under reduced pressure, sulphuric acid by precipitation as barium sulphate, and the amino acids and peptides extracted from the precipitate with boiling water.  Hydrochloric acid, if used, may be eliminated by diluting with water to an acid concentration of 0.1 N and a pH of 4, and passing through an anionexchange resin.  The resultant amino acid and peptide solutions are evaporated to dryness in vacuo at a temperature of 40 DEG  to 50 DEG  C.ALSO:Protein supplements for the human diet are obtained by hydrolysis of proteins with an aqueous solution of a strong mineral acid e.g. hydrochloric or sulphuric acid, until over 60 per cent of the protein has been hydrolysed, in the presence of an agent adapted to inhibit tryptophan destruction and consisting of or liberating sulphur dioxide e.g. sulphurous acid, sodium bisulphite, at a temperature not in excess of 100 DEG C.  Proteins specified are casein, ovalbumin, lactalbumin, egg albumin, fibrin, gluten and soy protein.  Maximum retention of tryptophan is obtained using about 1 N acid and about 29 grams of sulphur dioxide per litre of solution. Sulphur dioxide may be removed from the hydrolysate by distillation under reduced pressure, sulphuric acid by precipitation as barium sulphate, and the amino acids and peptides extracted from the precipitate with boiling water.  Hydrochloric acid, if used, may be eliminated by diluting with water to an acid concentration of 0,1 N and a pH of 4, and passing through an anion exchange resin.  The resultant amino acid and peptide solutions are evaporated to dryness in vacuo at a temperature of 40 DEG  to 50 DEG C.
Patent GB-670649-A (GB)
Title: Improvements in or relating to dynamoelectric machines
IPC: H02K23/36
Filed: 1949-02-22
Abstract: 670,649. Dynamo-electric machines; automatic voltage control systems. BENDIX AVIATION CORPORATION. Feb. 22, 1949, No. 4824/49. Classes 35 and 38 (iv). A D.C. commutator type machine has motor windings connectable to the supply in series or parallel and has generating windings at least one of which can be connected in series with the motor windings when they are series-connected. As shown, windings 40 and 62 are in parallel for low (6-volt) input and in series for medium (12 volt) input, a low voltage then being obtainable at commutator 47 from the winding 46 on the right-hand rotor core. For a higher voltage (24 volts) input, winding 46 is included in series with windings 40 and 62, both of which are on the right-hand rotor core, but winding 62 is connected to commutator 65 at the other end, the low voltage output being obtained from the voltage drop across the winding 46. A higher voltage is obtainable at commutator 52 from winding 56 placed on both rotor cores. Carbon type voltage regulators are placed in the high and low voltage output leads. Specification 625,825 is referred to.
Patent GB-980197-A (GB)
Title: Apparatus for generating ultra shortwave energy
IPC: H01J25/34
Filed: 1962-02-08
Abstract: 980,197. Velocity-modulated beam tubes. NATIONAL ENGINEERING SCIENCE CO. Feb. 8, 1962 [Feb. 14, 1961], No. 4848/62. Heading H1D. A charged particle beam system comprises an electron gun 10, the electrons being accelerated and passed through a hollow dielectric element 18 thereby generating electromagnetic energy resulting from the passage of electrons in close proximity to the dielectric material such that the velocity of electrons is greater than the phase velocity of the electromagnetic energy in the dielectric material, resulting in the generation of Cerenkov radiation, means for extracting the radiation from one end of the element, the dielectric material being disposed within a Faraday-type cage 19 having a high D.C. potential and defining a potential well free of D.C. fields. The beam is preferably velocitymodulated by its passage through a resonator structure 12 fed with radio-frequency energy from a source 13, and a portion of output may be coupled to the beam to velocity-modulate it so that the system operates as a self-sustained selfexcited oscillator. Instead of the interaction structure 12 being a resonator as shown, other structures may be used, e.g. a dielectrically loaded waveguide, a disc-loaded waveguide, a multiple wire helix or a series of coupled cavities.
Patent GB-608184-A (GB)
Title: Improvements in or relating to children's perambulators convertible to other uses
IPC: B62B7/12
Filed: 1946-02-18
Abstract: 608,184. Nursery chairs. YORK RAISING & DYEING CO., Ltd., and INGHAM, G. Feb. 18, 1946, No. 4990. [Class 52(ii)] [Also in Groups XXXI and XXXII] A device comprising a single tube bent at the middle to form a rounded backrest a, has each limb b bent to an S shape, a seat secured between the middle parts and an axle g and pair of wheels h across the lower parts of said limbs. The device may be converted to a two-wheel push chair by adding a fitment k or to a four-wheel perambulator or tricycle by suitable attachments clamped into tube ends c and f by set screws 1. The device may also be made to serve as a child's feeding chair by attaching a tray to the top parts of the limbs b and converted to a high chair by raising it with the axle and a footrest or other cross-member resting in grooves in the tops of scissor-like members of a collapsable frame.
Patent GB-375242-A (GB)
Title: Manufacture of fibroin-salt solutions
IPC: H05B6/04
Filed: 1932-02-19
Abstract: Highly concentrated fibroin-salt solutions are obtained by adding to the salt solution before, during, or after the dispersion of the fibroin, an acid amide, for example, formamide, acetamide, urea, or the like.  The following examples are given: (1) Degummed silk waste is dissolved in a saturated solution of sodium thiocyanate containing formamide or urea.  The solution is used, preferably after dialysis, for the preparation of spinning solutions or plastic masses; (2) A fibroin-sodium thiocyanate paste, obtained as in Specification 360,804, is liquefied by the addition of formamide; (3) and (4) Silk waste is dissolved in a solution containing sodium thiocyanate and formamide (or urea).
Patent GB-286081-A (GB)
Title: Improvements in and relating to head telephones
IPC: H04R1/10
Filed: 1927-02-22
Abstract: 286,081. Lissen, Ltd., and Richardson, R. P. Feb. 22, 1927. Head-sets.-The receiver of a head telephone set is mounted on the head-band by a universal or hinged joint. As shown, a partly spherical block 8 having a threaded stem is adapted to engage a recess 7 of the receiver casing 6 to facilitate universal movement and to clamp the receiver upon the strip 2 by the head-band when nut 11 is tightened. A slot 10 in the strip 2 facilitates vertical adjustment and a squared portion 9 of the stem cooperates with the slot 10 to prevent rotation of the block 8. A spring 13 holds the block 8 in its seating when the nut 11 is loosened. A projection 12 on the block 8 co-operates with a groove in the casing 6 to prevent relative rotation. Wires 1 of the head-band are clamped between the strip 2 and a washer 3 and fabric strips 4 are adapted to slide friction tight upon the wires. A ball or spherical washer may be used instead of the block 8 or if adjustment in one plane only is required semi-cylin-. drical members may be used. The spring 13 may be replaced by a spring interposed between the nut 11 and strip 2.
Patent GB-791859-A (GB)
Title: Improvements in and relating to the wet screening of solid particles and apparatus therefor
Inventor: FONTEIN FREERK JAN
IPC: B07B1/00
Filed: 1955-02-21
Abstract: The invention of the parent Specification is modified by the provision of a screening deck consisting of a perforated plate instead of being formed by assembled bars.  Apparatus according to the present modification and comprising two or more screening decks may be designed for recirculation of part of the undersize from each of the decks.
Patent GB-942658-A (GB)
Title: Improvements in or relating to electro-acoustic transducers
Inventor: ROBERTON JAMES SAMUEL PATERSON
IPC: H04M1/03
Filed: 1960-02-12
Abstract: 942,658. Bending cutters. STANDARD TELEPHONES & CABLES Ltd. Feb. 12, 1960, No. 5156/60. Heading B3W. [Also in Division H4] A wall or cover plate of an electro-acoustic transducer is formed with slits or louvres to provide an acoustic impedance which can readily be adjusted. A slit in the form of an overhang louvre, Fig. 5, is sheared with a chisel-shaped punch. A slit in the form of a double-lipped louvre, Fig. 6, is pierced with a finely tapered knifed-edge punch. The louvres can be individually adjusted.
Patent GB-729314-A (GB)
Title: Improvements in and relating to prepayment gas meters
IPC: G07F15/00
Filed: 1952-02-28
Abstract: 729,314. Prepayment gas meters. SMITH METERS, Ltd., and MIDLAND BANK EXECUTOR & TRUSTEE CO., Ltd., [Representative of CHARLES, A.], and CHARLES, J. A. Feb. 26, 1953 [Feb. 28, 1952], No. 5299/52. Class 27. [Also in Group XXIX] In a prepayment gas meter, a shut-off or inlet valve has two concentrically or co-axially disposed seatings 1, 2, Fig. 1, of which one seating is closed before the other so that between the times of closing of the two seatings gas at a restricted rate of flow is permitted to pass the valve. The valve pad 5 first engages the auxiliary seating 2 thus restricting the flow of gas to that which passes through the annular space between the two seatings until the pad displaces the seating 2 against the action of a leaf spring 6 or a counterweighted lever and engages the main seating 1 when the gas flow is completely arrested. A higher rate of restricted flow may be obtained by the provision of holes or notches 7 or longitudinal grooves in the outer peripheral face of the seating 2. The auxiliary seating may, alternatively, be a volute spring having its largest convolution secured within the main seating 1 or a loosely fitting sleeve surrounding the latter. In Fig. 5, the seatings are formed integrally with a moulded or diecast body 13 and are closed successively by a compressible portion 20 and a larger diameter portion 17 of the valve pad. Holes 16 and notches 15 may be provided to obtain the desired rate of restricted flow. In any of the constructions the valve pad may be connected to its arm by a spring-loaded spherical connection to permit relative angular movement. The seatings may be made from a material, such as graphite, not subject to corrosion.
Patent GB-692741-A (GB)
Title: Improvements in shaped explosive charges for perforating and like operations
IPC: F42D5/055
Filed: 1951-03-06
Abstract: 692,741. Blasting cartridge. SOC DE. PROSPECTION ELECTRIQUE, PRECEDES SCHLUMBERGER. March 6,1951 [March 17, 1950], No. 5399/51. Class 9(i) [Also in Group XXII] In a device for perforating &c. oil well casings &c. a shaped explosive charge 13 capped by a conical lining 5 is contained in a chamber 2 positioned on a body 1 by lugs 4 and a screw plug 6. The transverse explosive waves on ignition of the charge by a lanyard 7 are reduced by surrounding or lining the chamber 2 with rough porous material 8 such as sponge rubber, felt, glass wool, plastic material such as polystyrene, polyvinyl, or nylon, or metal trellis made of steel wool or shavings. Specification 677,824 is referred to.
Patent GB-1058618-A (GB)
Title: Process for the preparation of silicon dioxide aggregates
IPC: C01B33/18
Filed: 1964-02-10
Abstract: An aqueous suspension containing 20-60% SiO2 is spray dried to give aggregates 5-500 microns in diameter.  The SiO2 may be produced by vapour phase hydrolysis of chlorides or fluorides, or by reaction of SiO2 and carbon in an electric arc.  The aggregates may be heated at 800-1200 DEG  C. to reduce surface area, and may be coated, e.g. with metal from vapour phase, or hydrophobized.  They are said to be spherical or hollow-spherical.  Examples give product surface areas of 150 and 45 m2/gm., densities of 470 and 650 g/l., and specific particle size distributions.
Patent GB-959314-A (GB)
Title: New disazo-dyestuffs and their manufacture and use
IPC: C09B62/01
Filed: 1961-02-14
Abstract: The invention comprises disazo dyes of formula <FORM:0959314/C3/1> wherein X is a hydrogen atom or sulphonic acid group and D and D1 are diazo component residues at least one of which contains bound through a carboxylic acid or sulphonic acid alkylamide or arylamide group an acylamino substituent which is known to be capable of entering into chemical combination with the hydroxyl groups of cellulose.  The dyes may be prepared by coupling 2 mols. of one or two suitably substituted diazonium compounds with 1 mol. of 1-amino-8-naphthol-3 : 6- or -4 : 6-disulphonic acid or 1-amino-8-naphthol-4-sulphonic acid, or by reacting a disazo dye of the above formula, but wherein at least one of D1 and D contains an acylatable amino group linked through a sulphonic acid or carboxylic acid alkylamide or arylamide group, with an acylating agent such as p-chloro- or bromo - propionyl chloride, a  : b  - dichloropropionyl chloride, acrylyl chloride, a -chloroacrylyl chloride, propiolyl chloride, a - or b -chloro-maleyl chloride, sulphochloroacetyl chloride, tri - and tetra - halopyrimidines, 2,4-dichloropyrimidine-5-sulphonic acid, 5-nitro- or -cyano - 2,4,6 - trichloropyrimidine, cyanuric halides and their primary condensation products with ammonia or amino-, hydroxy- or mercapto-compounds. The dyes may be used to dye cellulose fibres in the presence of an acid-binding agent in blue shades.  In examples: (1) 1-amino-8-naphthol-3,6-disulphonic acid is coupled successively in acid and alkaline medium with 1 mol. of diazotized 1-(31-aminobenzenesulphonylamino) - 5 - acetylaminobenzene-2-sulphonic acid to yield a disazo dye which is hydrolysed in acid medium and the diamino-disazo dye condensed with cyanuric chloride and finally treated with ammonia to replace a second chlorine atom; (7) the disazo dye 1 - (31 - aminobenzenesulphonylamino) - 5 - (b  - chloropropionylamino) - benzene - 2 - sulphonic acid \sQ 1 - amino - 8 - naphthol-4 : 6-disulphonic acid is prepared.  Further examples and alternative reactants are specified. Specifications 797,946, 822,047, 831,371, 847,635, 848,742, 858,183, 875,946, 885,814, 885,815, 886,379 and 888,582 are referred to.
Patent GB-1375097-A (GB)
IPC: C03C10/16
Filed: 1972-02-07
Abstract: 1375097 Strengthening glass-ceramics OWENS-ILLINOIS Inc 7 Feb 1972 [8 Feb 1971] 5505/72 Heading C1M A glass-ceramic article having a modulus of rupture of over 85,000 p.s.i. is obtained by contacting the surface of a lithium-containing glass ceramic at an elevated temperature with an ion-exchange material containing alkali metals having a larger ionic radius than the lithium ions. The glass ceramic comprises in percentage by weight SiO 2  60-75; Al 2 O 3  15-30; Si 2 O 3-5À5; F 2  0À2-0À8; Na 2 O+K 2 O 0-2; and TiO 2 +ZrO 2  2À5-10 wherein TiO 2  and ZrO 2  are present together and wherein the molar ratio R 2 O+RO : Al 2 O 3  is 0À95 to 0À5 where R 2 O is the total alkali metal oxide content and RO the total content of alkaline earth metal oxides plus zinc oxide. The glass ceramic is prepared by heating a thermally crystallizable glass at a temperature of 1800‹ to 2200‹ F. The ionexchange is carried out at a temperature of from 750‹ to 1000‹ F. for a period of ¢ to 8 hours. The ion-exchange material is preferably a molten salt such as sodium or potassium nitrate.  Reference has been directed by the Comptroller to Specification 1,105,434.
Patent GB-697076-A (GB)
Title: Improvements relating to automatic firearms
IPC: F41A17/64
Filed: 1952-03-03
Abstract: 697,076. Automatic firearms. AKTIEBOLAGET BOFORS. March 3, 1952 [March 5, 1951], No. 5507/52. Class 92(ii) Relates to automatic firearms, such as that described in Specification 653,648 having a short barrel recoil and having latches on the breech-block 19 for locking it in the firing position, there being a releasing member 8<SP>1</SP> pivoted to the barrel 1 and adapted to strike a fixed abutment 53 during recoil. Such action causes the member 8<SP>1</SP> to swing about its pivot 9 to entrain a sliding member 37 provided with cam surfaces which release the locking latches and impart a rearward movement to the breech-block. According to the invention a safety element 61 is provided which, in one position, limits the movement of the member 8<SP>1</SP> so that the latter prevents' the striker 35 in the breech-block from functioning. The element 61 shown slides' in a casing and is urged forwardly by an internal spring 63. In front of the element' is an electro-magnet 65, having a core 66, winding 67, and a movable armature 68, the latter being connected to a centrally pivoted link' 71 whose other end is connected to a slidably mounted bar 76. In the position shown the bar 76 engages the element 61, and the latter is held retracted' against the action of its spring 63 in such a position that the member 8<SP>1</SP> is free to' operate. On closing the circuit to the electromagnet, the armature 68 moves downwards to lift the bar 76 thus freeing the element 61 which then moves forwards under the action of spring 63 to bring a cam surface 60 thereon beneath the arm 8 of member 8<SP>1</SP>. The latter is thus rocked and prevents the striker from moving to the firing position.
Patent GB-1173883-A (GB)
Title: Germination Box Installation
Inventor: BLASCHEK RUDOLF
Filed: 1968-02-05
Abstract: 1,173,883. Malting. ERFURTER MALZEREIUND SPEICHERBAU VEB. Feb. 5, 1968, No. 5592/68. Heading C6E. A germination box installation for the treatment of germinating material, e.g. green malt, comprises a number of boxes 1, 1<SP>1</SP> connected with one another by channels 4, the bottom of channels 4 being formed as perforated flaps 2 which may be opened when the germinating material is to be cleared from the box. A loosening and clearing device 5 is motor driven along rails 9 on the walls 7 and 17 of the boxes and is movable to all the boxes by a motor driven platform 6 on the end wall 3 of the installation the device 5 passing through channels 4. The platform 6 has arms 15 which lie in recesses of the side walls 7 and bear rails 8 having the same height and width as the rails 9. The bottom 12 of the boxes is perforated and beneath the clearing flaps 2 of each connection channel 4 there is provided a partition 14 so that the boxes are separated from each other beneath the flaps 2.
Patent GB-1425475-A (GB)
Title: Method and apparatus for bending high tensile steel rods or bars
IPC: B21D7/022
Filed: 1972-02-07
Abstract: 1425475 Bending rods and bars STANFORD COMPONENTS Ltd 7 May 1973 [7 Feb 1972] 5645/72 Heading B3E Apparatus for bending high tensile steel rods or bars to a desired curvature comprises a device for clamping the rod or bar against a former and at least one movable roller for overbending the rod or bar about the former to a predetermined degree. Upon retraction of the roller the limbs of the component so formed assume a required position, e.g. a U-shape. A base plate 10 has a guide channel 11 which accommodates a slidable clamping member 15 for clamping a rod 55 against a shaped, fixed roller 33. Two converging guide channels 34, 35 are disposed either side of channel 11 and accommodate respective support members 36, 36<SP>1</SP> which are slidable in the channels and support rollers 45, 45<SP>1</SP> having circumferential grooves to engage the rod 55. The clamping member 15 and support members 36, 361 are movable against the bias of respective springs 25,51,51<SP>1</SP> upon downward movement of cammed drivers 27, 53. A rod cutting assembly 60 is disposed alongside channel 36<SP>1</SP> and has a cutting member 61 also movable by a cammed driver 71 to cut the rod 55 to a desired length before the bending operation. Upon downward movement of a ram (not shown) drivers 27, 53, 71 move downwards to cause horizontal movement of member 15, supports 36, 36<SP>1</SP> and cutting member 61. After the rod is cut and clamped supports 36, 36<SP>1</SP> continue to move so that rollers 45, 45<SP>1</SP> engage opposite ends of the rod and bend it around roller 33. The rollers roll along the limbs so formed to a predetermined position determined by setting of the downward movement of the drivers. Upon relaxing the pressure the rollers and clamping members return to an inoperative position under the bias of the springs and the deformed rod assumes its required shape. Such apparatus may be used for the manufacture of U-bolts where it may be more convenient to employ two bending operations using the same apparatus.
Patent GB-657685-A (GB)
Title: A new or improved tyre pressure gauge
IPC: G01L17/00
Filed: 1948-02-26
Abstract: 657,685. Pressure gauges. BATTERSBY, D. J. Feb. 26, 1948, No. 5700. [Class 106 (ii)] In a tyre pressure gauge in which air from the tyre is admitted to one end of a cylindrical body a thus moving a spring-loaded piston k, the piston moves axially an indication sleeve p in frictional engagement with the body, and the position of the sleeve is visible through a window covered with transparent material s bearing a graduated scale (not shown). In the gauge shown, the pin of the tyre valve is depressed by a projection c in a recess b, thus allowing air to pass through a filter e and act on the piston having a cup-leather packing l and an extended stem m. The piston spring n abuts against a spring-loaded member u adjustable in an end cap f fixed to the body and having a cylindrical extension h. The sleeve p carries a frictional spring ring q which engages the inner surface of a portion of the body of smaller diameter than that containing the window.
Patent GB-1439319-A (GB)
Title: Method of preparing apatite-structured phosphors
IPC: C09K11/73
Filed: 1975-02-11
Abstract: 1439319 Luminescent materials WESTINGHOUSE ELECTRIC CORP 11 Feb 1975 [22 Feb 1974] 5722/75 Heading C4S Chlorine is incorporated into an alkaline earth metal fluorophosphate material by heating the phosphate to 800-1300‹ C. in a Cl 2  atmosphere free of O 2  and H 2 O to form a homogeneous phosphor with a well controlled Cl to F ratio. The phosphate is preheated to 850‹ C. in air then flushed with inert gas. After heating the phosphor is cooled in inert gas. The Cl 2  is provided in a N 2  or A carrier and the apparatus must be leak free. The phosphate is prepared by precipitation and contains Sb or Eu or Mu and Sb activators. The Cl content is a function of the HCl concentration.