baber/WOPTO huggingface dataset:
Patent GB-1358790-A (GB)
Title: Method for the production of maltose of high purifity
IPC: C12P19/22
Filed: 1972-05-25
Abstract: 1358790 High purity maltose HAYASHIBARA BIOCHEMICAL LABORATORIES Inc 25 May 1972 [31 May 1971] 24800/72 Heading C2S Maltose of high purity is prepared by: (a) suspending starch containing at least 50% by weight amylopectin in an aqueous medium; (b) heating the suspension so formed to a temperature not higher than 135 C. until the starch is solubilized; (c) adding #-amylase free from active α-amylase, maltase, glucamylase, and isoamylase to the soluble starch solution so obtained and effecting #-amylolysis of the mixture to form maltose from the non-reducing terminal groups of the starch molecules; (d) terminating the action of the #-amylase on the starch before or after dialysing the mixture against water until maltose accumulates in the water; and (e) recovering the maltose from the dialysate; degradation of the starch being continued for a time insufficient for the proportion by weight of trisaccharides, disaccharides other than maltose and monosaccharide present in the maltose, following dialysis and recovery from the dialysate, to exceed 5%.
Patent GB-952292-A (GB)
Title: Regulator for fuel injection pumps of internal combustion engines
Inventor: GARCEA GIANPAOLO
IPC: F02D9/00
Filed: 1962-06-28
Abstract: 952,292. Regulating. ALFA ROMEO S.p.A. June 28, 1962, No. 24833/62. Heading F1B. [Also in Division G3] A regulator for I.C. engine fuel injection pumps. comprises a three-dimensional cam 8, Fig. 2, acting on the pump regulating rod 6, the cam being disposed with its axis parallel to the axis of a speed indicating device 2 and is displaceable along its axis in dependence on engine speed and is rotatable about its axis in dependence on the position of the throttle valve 50, a lever linkage 1 which increases the displacement of the cam with respect to that of the speed indicating device, and a second lever linkage 4 arranged so that the transmission ratio between the angle of rotation of the throttle valve and the angle of rotation of the cam gradually decreases as the throttle valve opening increases. As engine speed rises outward movement of balls 12 (Fig. 1 not shown) moves hollow bell 10 to cause axial movement of the cam through pivoted lever 1. The combined angular and axial movements of the cam are sensed by lever 7 and are transmitted through lever 28, to a lever 27 pivoted about pin 25, to move the fuel pump regulating rod 6. A thermostat 17 acts through a travel limiter 21 and lever system 22a, 22b, 24 to displace pivot pin 25 in accordance with engine temperature, An element 20 which detects ambient temperature controls a temperature-sensitive capsule 19 connected to a barometer capsule 18 which together act through levers 30a, 30 to displace pin 25 in arcuate slot 26 in accordance with changes in ambient temperature.
Patent GB-1348719-A (GB)
Title: Photoelectrophoretic imaging apparatus
IPC: G03G17/04
Filed: 1971-04-19
Abstract: 1348719 Photo-electrophoretic copying XEROX CORP 19 April 1971 [31 March 1970] 24979/71 Heading G2H In the production of a multi-colour copy using photo-electrophoretic apparatus, a monochromatic imaging suspension 16 is applied to an injecting electrode 3 which suspension is then exposed to an original 27 via a colour filter 29, using imaging electrodes 20, 22. A second injecting electrode 2 is then positioned over the exposed suspension, a second monochromatic colourant (31) Fig.2 (not shown) is similarly dispensed and exposed with a different colour filter in the light path. A third injecting electrode is positioned over the exposed suspension, a polychromatic colourant (32) is similarly dispensed and exposed, with the previously formed monochromatic images formed on the electrodes 2, 3 acting as colour masks. No filter is provided for this third exposure, but transparent glass may be positioned to maintain the path length constant. The electrode 2 may be omitted, and the layer (31) dispensed directly onto the layer 16.
Patent GB-443726-A (GB)
Title: Improvements in the manufacture or treatment of artificial textile materials
IPC: D06M11/79
Filed: 1934-08-30
Abstract: Textile materials such as filaments, yarns, ribbons, or fabrics, having a basis of cellulose derivatives are treated first at a temperature at least of the order of 70 DEG  C. with a solution of a reagent containing an acid radicle of an acid derived from a non-metal and then treated with a solution of a reagent containing a metallic radicle to form in the materials a substantially water-insoluble salt of the metal and the acid.  Salts or free acids may be used for the first treatment.  Sodium silicate or borate, ammonium silicate, methylamine or ethylene diamine silicate, phosphates and sulphates are specified.  The reagents may be incorporated at raised pressure.  Incorporation of the reagents may be facilitated by using swelling agents prior to or during either of the two treatments.  For the second treatment, the metallic compound may be magnesium, calcium, strontium, barium, tin, lead, or zinc chloride, acetate or hydroxide. Saponification of cellulose ester materials may be carried out during either of the loading treatments. Threads may be treated with or without applied tension and while travelling in warp formation.  The speed of travel may be caused to diminish along the path of the threads during treatment.  The materials may be treated with wetting agents such as soaps, sulphonated soaps, naphthalene sulphonic acids, or o -amino-alkylamides of fatty acids, prior to the loading treatments. Yarns may be treated in hank form and in closed vessels.  Fabrics may be mangled between the liquid treatments.  Yarns which have undergone stretching or shrinking may be treated by the process.  Yarns may subsequently be given a high twist and used in the production of cr<\>epe fabrics.  The materials treated may be of cellulose acetate or other cellulose ester or ether, or they may be mixed materials containing cellulose derivative filaments or fibres and other artificial filaments, or natural fibres.  The treatment may result in increased affinity for cotton dyes, increased resistance to fire, and a high safe ironing temperature.  In an example, a woven fabric made from cellulose acetate spun yarn is immersed in sodium silicate at 75--85 DEG  C., and then in barium chloride and acetic acid solution. It is washed and dried.  In other examples, cellulose acetate fabric is treated with a solution of sodium silicate and tri-sodium phosphate and then with barium chloride; yarn is treated with ammonium thiocyanate, sodium phosphate, and tungstate, mangled, dried, and treated with barium chloride; knitted fabric is treated with sodium di-hydrogen phosphate, mangled, dried and treated with barium chloride; yarns in parallel formation are treated with sodium silicate and caustic soda solution, dried and treated with calcium chloride solution. Specifications 323,790, [Class 2 (ii)], 340,324, 340,325, 340,326, 340,436, 340,437, 343,062, 378,858, 389,823, 411,094, 435,806; 437,019, [Group IX], 438,584, 438,585, 438,586, 438,587; 438,589, 438,590, 438,591, [all in Group IX], and 443,707 are referred to.
Patent GB-600684-A (GB)
Title: Improvements in or relating to electric circuits using thermistors
IPC: H03K3/02
Filed: 1945-09-27
Abstract: 600,684. Switching systems. STANDARD TELEPHONES & CABLES, Ltd., BRAY, F. H., and RIDLER, D. S. Sept. 27, 1945, No. 25081. [Class 38 (iv)] To reduce the effects of ambient temperature changes upon the working of a thermistor trigger circuit comprising a thermistor R3 in series with a linear resistor R1, the thermistor is shunted either by a linear resistor R2, Fig. 2, or by a linear resistor R5 in series with another thermistor R2, Fig. 4, The circuit may be triggered by opening and subsequently closing the shunt, or by increasing the voltage applied across the thermistor or whole circuit. Initial conditions are restored by short circuiting or disconnecting the thermistor. Specification 557,707 is referred to.
Patent GB-892648-A (GB)
Title: An internal combustion engine electric starting motor
Inventor: BERRY GEOFFREY FREDERICK
IPC: F02N15/06
Filed: 1959-07-22
Abstract: 892,648. Engine turning gear. C.A.V. Ltd. July 7, 1960 [July 22, 1959], No. 25103/59. Class 7(5). [Also in Group XXXV] An electric starter motor for an internal combustion engine described and claimed in Specification 742,024 is modified by the addition of a member 6 wherein the operative link between the core 8 of a solenoid 9 and a sleeve 3 carrying the starter motor pinion 4 is made disengageable so that should the starter switch be maintained closed after the I.C. engine has started the sleeve 3 and the pinion 4 are able to return to the normal position with the core 8 of the solenoid 9 still in the attracted position. The engagement between the member 6 and the core 8 is by way of a number of balls 11 loaded against the core 8 by a spring 12, which connection is broken when the axial force between the core 8 and the member 6 exceeds a predetermined value occasioned by the return of the pinion 4 after the I.C. engine has started.
Patent GB-722381-A (GB)
Title: Improvement in cloth reels
IPC: D06B3/24
Filed: 1952-10-08
Abstract: In apparatus for dyeing material in rope form of the type comprising a dyebeck in which the material is wound helically, as an endless length, upon a continuously rotating reel, each turn of the helix providing a loop which hangs into the liquid in the vat beneath the reel, the reel, shown in side elevation in Fig. 1 and in end elevation in Fig. 2, comprises a framework upon which are mounted a plurality of projecting <PICT:0722381/IV (c)/1> <PICT:0722381/IV (c)/2> <PICT:0722381/IV (c)/3> members 61, 62 resulting in a plurality of series of axially extending corrugations in the recesses of which the material is wound.  The reel comprises end-pieces 1 mounted upon a central shaft having extensions 15 serving as journals for the reel, the projections 61, 62 being mounted upon metallic slats connected between the end-pieces.  The rope of material lies in the V-shaped recess between two adjacent projections 61, 62 and is gripped by the zig-zag twist it receives in passing between the projections. In a modification, Fig. 5, the projections 61, 62 are replaced by metal rods 75 bent to provide corrugations as shown.
Patent GB-1425738-A (GB)
Title: High tensile steel
IPC: C21D9/00
Filed: 1973-05-25
Abstract: 1425738 Heat-treating alloy steel SUMITOMO METAL INDUSTRIES Ltd 25 May 1973 [26 May 1972] 25303/73 Heading C7A Steel containing in percentage by wt. is austenitized and then quenched into a bath maintained at M 5  Œ 100‹C, the time and temperature of quenching being such that a bainite structure is obtained. The steel may then be tempered below the Ac 1  temperature. Optionally the steel also contains one or more of Quenching may be carried out in molten metal or salt. The steel may be used for high strength bolts or for concrete reinforcing rods.
Patent GB-995839-A (GB)
Title: Improvements in and relating to devices for controlling electromagnetic waves at microwave frequencies
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01P1/15
Filed: 1960-07-20
Abstract: 995,839. Semi-conductor devices; electromagnetic waveguides. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 8, 1961 [July 20, 1960], No. 25308/60. Headings H1K and H1W. A microwave variable impedance element for controlling flow of microwave energy along a waveguide when mounted transversely therein comprises a semi-conductor wafer capable of passing such energy through its thickness without substantial attenuation provided with an ohmic contact electrode and a PN junction forming electrode. The bias condition determines the transmission properties. As shown in the drawings the electrodes may be strips along opposite wafer edges. Alternatively, they may consist of aligned lattices on opposite faces, or interdigitated combs on one face of the wafer. In a modification of the latter arrangement the PN forming electrode is replaced by a line of discrete dot junctions wired together. In another device sets of parallel strip electrodes ohmic on one wafer face and PN junction forming on the other are interconnected by spaced rods extending through the wafer to provide in effect a series connection of the junctions. Such a connection may alternatively be provided by stacking a series of wafers with edge electrodes edge-to-edge. A typical use of the element is illustrated in Fig. 7, where the element is mounted in the common wall of a pair of rectangular waveguides. When a highpower signal to be transmitted to an aerial is to the conductive condition to form a continuation of the common wall. On the other hand lowenergy signals passing along guide 74 from the aerial switch it to its insulating state to allow the signal to cross into waveguide 75 at the head of which is a receiver.
Patent GB-737552-A (GB)
Title: Improvements in or relating to a windshield wiper
IPC: B60S1/38
Filed: 1950-10-18
Abstract: 737,552. Windscreen cleaners. TRICO PRODUCTS CORPORATION. Oct. 18, 1950 [Oct. 28, 1949], No. 25394/50. Class 138 (1). A windshield wiper comprises a flexible wiper blade supported by a flexible backing disposed along the back edge of the blade and a wiper arm pressure-distributing superstructure including a primary yoke and pivoted secondary yokes, wherein the connections between the ends of the secondary yokes and the backing permit of relative longitudinal movement and comprise grooves formed in the secondary yokes (or backing) by bending oppositely projecting ears thereon, in which grooves edges of the backing (or secondary yokes) engage. As shown in Fig. 2, the windscreen wiper comprises a flexible blade 5 embraced on each side by fingers 7 of a flexible backing 6 which is slidably connected to the ends of strap-like secondary yokes 10 (only one shown) which are rockably connected intermediate their ends to the ends of a channelled primary yoke 9 provided with a wiper arm attachment means (not shown). The four points of connection between the backing 6 and the ends of the secondary yokes 10 are facilitated by seats 15, Fig. 5, on the backing which receive the edges 16 of the secondary yokes. The seats are formed by turning upwardly and over, oppositely projecting ears 17 on the backing. In order to prevent longitudinal displacement of the blade and its backing from the pressure distributing frame formed by the primary and secondary yokes, a resiliently and upwardly urged detent 20 is provided at one point of connection between the backing and one secondary yoke. The detent passes through apertures 21 and 22 in the backing and secondary yoke respectively. Each end of the primary yoke 9 is provided with ears 13, Fig. 4, which are turned inwardly and upwardly to engage in an opening 12 in the secondary yoke 10. The yoke 9 also has a transverse rib 14 to facilitate a rocking connection between the primary and secondary yoke. The ears 13 and rib 14 may be on the secondary yoke and the opening in the primary yoke. Also a rivet may be provided in lieu of the transverse rib. In a modification, Fig. 8, the secondary yokes 10<SP>1</SP> are of channel form and the ends are provided with seats 15<SP>1</SP> which slidably receive lateral projections 16<SP>1</SP> on the blade backing 61. As in the first embodiment, one point, of connection is provided with a detent 20. In both forms the seats are in the form of opposed grooves and the secondary yokes can nest within the channelled primary yoke. Specification 737,589 is referred to. Reference has been directed by the Comptroller to Specifications 666,474 and 683,271.
Patent GB-502610-A (GB)
Title: Improvements in or relating to closure means for collapsible tubes or like containers
IPC: B65D47/30
Filed: 1937-09-20
Abstract: 502,610. Closures for collapsable tubes &c. CHURCH, A. H. Sept. 20, 1937, No. 25494. Convention date, Sept. 19, 1936. [Class 125 (iii)] Sealing of a rotatable valve closure 42 for collapsable tubes &c. mounted in a seating 34, is assisted by a sealing washer or liner 52 fitted within the seating and provided with grooves 58 either on its interior or exterior surface in order to facilitate its bending to the shape of the seating. The washer or liner may extend over the whole surface of the latter in which case it is formed with a central portion 521, Fig. 21, and with a series of leaves 66 integral with the central portion ; or it may consist only of the central portion 58, Fig. 14, which for centring purposes is accommodated in a recess 57 formed around the outlet opening of the tube. The washer is of fabric; leather, rubber, &c., preferably of fabric treated with rubber &c., or of a combination of rubber and cotton fibres; and the washer may be furnished with a layer of a more compressible material such as rubber or latex which may take the form of a supplementary washer 60, Fig. 5, accommodated in a recess or countersink 62 in the main washer. The washer may be provided with a skirt which enters the outlet passage of the tube, so centring the washer and sealing the edge of this passage; centring of the washer may alternatively be effected by means of a recess 54, Fig. 1, into which the supplementary washer 60 fits. When assembling, the washer is pressed into shape' in the open end of the tube nozzle, this operation being conveniently carried out in two presses ; the rotary valve 42 is then inserted, and the nozzle and sealing washer finally closed on to the valve. Specification 502,616 is referred to.
Patent GB-1018946-A (GB)
Title: Improvements in visible record devices
IPC: B42F17/18
Filed: 1963-06-27
Abstract: 1,018,946. Visible record devices. W. E. COY. Sept. 28, 1964 [June 27, 1963], No. 25616/63. Heading B6E. In a filing device wherein the record sheets 8 are arranged in overlapping form, each sheet is detachably secured by a non-setting adhesive to a rod-like member which is removably secured at its opposite ends in a supporting device 1. The device 1 comprises a base with inwardly-facing channels 3, idler rollers 4 at each end, and a flexible endless band 5 arranged within each channel 3 and passing around the rollers 4 and over the base 2. Each band 5 has a number of pockets 6 to receive the ends of rods 7. Each rod 7 is a flat spring strip with cylindrical ends, and can be bowed to allow the ends to be inserted in the pockets 6. A printed backing sheet 11 (Fig. 2, not shown), is folded around the rod 7 and secured thereto, and two strips 12 of plastics material are secured to the back edge of the backing sheet. Apertures 13 in the strips 12 are covered by pieces 14 of tape having an adhesive of non-setting type facing the backing sheet. A record sheet 8 is attached to the rod 7 by inserting the sheet edge between the plastics strips 12 and the backing sheet, and then pressing on the strips 12 to cause the adhesive surface exposed through the apertures 13 to adhere to the record sheet 8. In a modification (Fig. 3, not shown), the rod 7 is replaced by a support made from a metal or plastics sheet folded into U-form to provide two limbs 15 having apertures 13 therein which are covered, as before, by adhesive pieces 14. A record sheet is inserted between the limbs 15, and the latter are pressed together to cause the exposed adhesive surfaces on the pieces 14 to adhere to the sheet. Rounded ends 16 on the support are fitted with ferrules 17, which could be fitted in the pockets 6 of the device 1, Fig. 1, or fitted over pins 20 on a pair of chains 18 which replace the endless bands 5. Each chain 18 comprises detachable links 19 carrying fixed pins 20 passing through adjacent links, and any link can be removed to allow its pin 20 to be engaged in the ferrule 17 of a support.
Patent GB-465931-A (GB)
Title: Improvements in or relating to a method of annealing glass-to-metal seals
IPC: C03C27/02
Filed: 1936-09-21
Abstract: An alloy for sealing to glass is composed approximately of 53,8 per cent of iron, 29 per cent of nickel, 17 per cent of cobalt, and 0,2 per cent of manganese.
Patent GB-788163-A (GB)
Title: Improvements relating to synthetic resinous coating compositions
IPC: C08L63/02
Filed: 1954-09-03
Abstract: A non-pigmented coating composition comprises a mixture of ingredients consisting chiefly of (1) unsaturated ethers of the general formula <FORM:0788163/IV (a)/1> wherein R1 is an unsaturated aliphatic radical of at least 3 carbon atoms, or a halogenated derivative thereof, and (2) compounds of the formula <FORM:0788163/IV (a)/2> where n is 1 or 2, the mixture having incorporated therein from 0.02 to 1.0 per cent, by weight, of a liquid polysiloxane of the formula <FORM:0788163/IV (a)/3> wherein Z is a hydroxyl, alkoxy or acyloxy radical, n is an integer from 1 to 15,000, and each R is an alkyl or aryl radical, there being an average of from 1.95 to 2.2 radicals per Si atom. Ethers disclosed are the allyl, methallyl, crotonyl, butenyl, 2-chloroallyl, 3-chloroallyl, 3 - chloro - 2 - methallyl and 1 - chloro - 2 - bistenyl ethers of 2 : 4 : 6-tris-(hydroxymethyl) phenol.  In examples, the coating compositions consist of (1) a mixture of allyl ethers of uni-, bis- and tris-(hydroxymethyl)-phenols and a 10 per cent solution in isopropanol of the oil formed during the storage of tetramethyldisiloxy-1,3-diol crystals; (2) the ether mixture of (1) and a 10 per cent isopropanol solution of a mixture of linear, branched and cyclic polysiloxane diols; (3), (4) the composition of (1) and a soya oil-modified glyceryl phthalate resin; (5) the composition of (1) and the reaction product of 2,2-bis-(4-hydroxyphenyl)-propane and epichlorohydrin; (6) the siloxane of (2) and the resinous composition of (5); (7) a xylene solution of linear methylphenylsiloxane diols and a solution of the ethers of (1) and the reaction product of (5) or a soya oil-modified glyceryl phthalate resin; (8) the siloxane solution of (7) and the reaction product of (5) with either a butylated melamine-formaldehyde resin or a dehydrated castor oil-modified glyceryl phthalate resin; (9) a dimethylpolysiloxane containing butoxy groups and the ethers of (1); and (10) an isopropanol solution of a dimethylsiloxane containing acetoxy groups and the ethers of (1).  Other resins that may be added are those of the formula <FORM:0788163/IV (a)/4> where n is an integer of from 1 to 3, as disclosed in Specification 743,647, ethoxyline resins such as those disclosed in Specification 732,253, and other oil-modified alkyds, many examples of which are given, either alone or in conjunction with urea- or melamine-formaldehyde resins.  Siloxanes containing terminal silicon-bonded alkoxy groups may be made by refluxing an alkyl, e.g. methyl cyclopolysiloxane such as octamethylcyclotetrasiloxane in the presence of KOH or p-toluene sulphonic acid with subsequent neutralization or the removal of water during or after the reaction.  Suitable alcohol to cyclopolysiloxane ratios are from 1 : 4 to 3 : 1.  In Example (9), a butoxy terminated siloxane is made in the above manner. Specifications 586,187, [Group IV], and 630,911 also are referred to.
Patent GB-256699-A (GB)
Abstract: 256,699. Telegraph Construction & Maintenance Co., Ltd., and Riddles, J. May 13, 1925. Electromagnetic current and pressure meters. - The coil of a moving-coil galvanometer is balanced independently of the suspension by means of a balance-weight 6 at one or both ends of the frame 1, means such as screwed rods 10, 11 being provided for sliding the weights relatively to the frame. These rods are mounted in frames 8, 9 secured to the frame 1. When two balance weights are employed, they are adapted to move in directions at right-angles to each other.