baber/WOPTO huggingface dataset:
Patent GB-311315-A (GB)
Title: Method of manufacturing a pure, constant yeast
IPC: C12N1/16
Filed: 1929-01-21
Abstract: 311,315. Levin, E. I. May 9, 1928, [Convention date]. Yeast.-Yeast, particularly suitable for breadmaking is prepared by treating a pure culture of a single species of yeast fungi in the presence of a suitable nutritive substratum and at a suitable temperature with substances such as nitrogeneous compounds and certain phosphates which act as stimulants on the enzymes of the yeast, compelling the cell protoplasma to set off enzymes promoting fermentation. A pure and constant yeast is thereby obtained. In an example, a pure culture of a yeast fungus suit. able for bread-making is mixed with saccharose and phosphorous salts and is left at about 37‹ C. for 1-5 hours. The mass of yeast is separated and dried. The Specification as open to inspection under Sect. 91 (3) (a) refers to the preparation in the same way of yeast suitable for the production of alcohol, acetic acid, lactic acid and the like. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 181,293, 227,110 and 270,770.
Patent GB-469325-A (GB)
Title: Improved foaming agents
IPC: A62D1/02
Filed: 1936-01-22
Abstract: Foaming-agents are produced by incorporating together in aqueous solution a wetting agent and products obtained by the neutralization of nitric acid-treated glues.  The composition preferably includes a water-soluble organic solvent, such as ethyl alcohol, and an agent capable of lowering the viscosity of aqueous glue solutions, such as urea or thiourea.  Preferably, purified glues, giving jellies at low concentrations, are used, and the treatment with nitric acid and subsequent neutralization, for example with sodium or ammonium hydroxide, should be such that a 40 per cent aqueous solution of the product is more viscous at a temperature of 20 DEG  C. than is a similar solution of the untreated glue at 70 DEG  C., but does not set to a jelly when allowed to stand for three hours at a temperature of 20 DEG  C.  Suitable wetting agents are alkali-metal or ammonium salts of alkylated naphthalene sulphonic acids, sulphuric esters of higher fatty alcohols, sulphonated castor oils, &c.  Specifications 289,630, [Class 47 (ii)], and 311,885, [Class 2 (iii)], are referred to.
Patent GB-667675-A (GB)
Title: Apparatus for effecting a timed operation on spaced moving articles
IPC: B65H45/101
Filed: 1949-01-26
Abstract: 667,675. Folding paper. DORAN, T. J. Jan. 26, 1949, No. 2121/49. Class 100 (i). [Also in Groups VIII and XXXV] Apparatus for effecting a timed operation on each of a series of spaced moving articles, particularly for folding paper sheets as they leave a conveyer belt, comprises two timing units each responsive to article travel past a control zone and alternately controlling the folding blade or other operation-performing device, the means for transferring control from one timing unit to the other being responsive to movement of each of the series of articles, or to operation of the folding blade or the like. As shown in- Figs. 1 and 2, sheets to be folded pass in succession along a conveyer 10 over a transverse row of contact pairs 11-13 to an electrically operated folding blade 18, each pair of contacts opening as a sheet passes them. Contacts 12, 13 control, respectively, timing units A, B both of which, in the absence of a two-position selector switch 15, 16 controlled by contacts 11, would commence a timing operation immediately the leading edge of a sheet opened contacts 12, 13. Switch 15, 16, which snaps from one position to the other each time contacts 11 are closed by the passage of the rear edge of a sheet, by-pass one or other of contacts 12, 13, so that the timing units operate alternately for successive sheets. A switch 21, 22, similar to switch 15, 16 but which changes over its contact position each time a micro-switch 20 is actuated by the folding blade 18, connects the operating coil 19 of the folding blade for control alternately by the two timing units. Timing unit A, which is identical with unit B, comprises a condenser 39 normally maintained on charge from a potentiometer 31 through a circuit including contacts 53 of a relay 43 and the grid-cathode path of a discharge tube 26 the anode circuit of which contains the relay coil. Tube 26 is thus normally cut off by the grid-biassing voltage of the condenser, but the relay remains energized over a holding circuit including its own contacts 52 and the "trip" contacts 12 (or 16). Opening of contacts 12 by the leading edge of a sheet interrupts the holding circuit (assuming contacts 16 to be in the position shown) and the relay drops out, thus interrupting the condenser charging circuit at contact 53. Opening of contacts 12 also removes A.C. hold-off bias from a tube 25 which now conducts and energizes a relay 30 to establish a high-resistance discharge path for condenser 39 over a resistor 61. A.C. hold-off bias is reestablished when the trailing edge of the sheet passes contacts 12; relay 30 thereupon becomes de-energized and substitutes a lower-valued discharge resistor 63 in the condenser circuit. The condenser eventually discharges to a voltage insufficient to hold-off tube 26, conduction of which re-energizes relay 43 to close the operating circuit for the folding solenoid 19 over contacts 51 of this relay and restore the contacts 52, 53 to their initial position, in readiness for another timing cycle.
Patent GB-1494452-A (GB)
Title: Process for preparing 7-aminocephalosporanic acid derivatives
IPC: A61K31/545
Filed: 1976-01-20
Abstract: 1494452 7 - Aminocephalosporanic acid derivatives ASAHI KASEI KOGYO KK 20 Jan 1976 [22 Jan 1975 9 July 1975 (2) 18 July 1975] 02162/76 Heading C2C A process for preparing the α-ketoadipoyl-7- ACA derivative of Formula (IV) (wherein X is H, OH, acetoxy or a nucleophilic residue) and 7-aminocephalosporanic acid derivatives of Formula (III) comprises allowing cephalosporin C or its derivative of the Formula (I) or a salt thereof, to react with an α-keto derivative of Formula (II) R 1 -CO-R 2  (wherein R 1  is carboxyl, aroyl or amide when R 2  is hydrogen, and is carboxyl when R 2  is alkyl or aryl, or its salt. Compound (III) is obtained selectively when the above reaction is carried out in the presence of hydrogen peroxide. Preferred α-keto derivatives are glyoxalic acid, phenylglyoxal, glyoxalic acid amide, pyruvic acid, α-keto-phenylacetic acid and sodium α- keto-n-butanoate. Reaction may be accelerated by effecting reaction in the presence of a bivalent or trivalent metal ion or an organic base.
Patent GB-1036241-A (GB)
Title: Safety device against the overturning of pans on cooker hobs
Inventor: OATLEY ARTHUR FREDERICK
IPC: F24C15/36
Filed: 1962-01-22
Abstract: 1,036,241. Guards for cookers. OATELY TECHNICAL DEVELOPMENTS Ltd. Jan. 22, 1963 [Jan. 22, 1962], No. 2186/62. Heading F4W. A safety device against the overturning of pans 7 on a cooker hob comprises a ring 9 removably mountable on the hob and adapted to encircle the pan so that when spaced above a heating position the ring is firmly located against lateral displacement but is removable in an upward direction. The ring has a support 11 with a downwardly extending non-circular portion 12 detachably engageable with a complementary socket for each burner position, in a holder 10 secured to the hob or in the hob itself. The holder is centrally disposed between the burners and any ring 9 can be used at any of the burners. The holder 10, of frusto-conical shape, is secured to the spillover tray 14 through a plinth 16 and has non-circular grooves in its surface to receive the inclined ends 13 of the downwardly extending portions 12. A sheet metal shell 20 fits over the holder, being secured to the holder by the screws 15. Sockets 21, Fig. 2 (not shown) are formed between the shell 20 and the holder grooves, being complimentary in cross-section to the ends 13 of the support 11. The sockets 21 open through the top of the shell. Vertically extending lugs 22 are fixed to the ring to closely embrace and restrict tilting of the pan, and a screw 23 or a cam can be provided to hold the pan tightly within the ring.
Patent GB-904753-A (GB)
Title: Improvements in or relating to high toughness cast iron for relatively thick castings and method of heat treating same
IPC: C22C37/00
Filed: 1959-01-21
Abstract: A casting having a white as-cast structure and consisting of C 2-3%; Si 1-2.5%; Mn 0.1-2.5%; Cu 0.1-3%; S 0.009-0.2%; P 0.02-0.15%; one or more of Ti up to 0.5%, Zr up to 0.5%, Al up to 0.2%; Mg 0.029-0.2%; Mo 0.05-0.5%; Fe the remainder, is stripped from the mould at above the eutectoid transformation temperature, i.e. 750-1000 DEG  C. and is heat-treated to produce a structure containing spheroidal graphite by (1) immediate stabilization of the temperature of the casting at 740-850 DEG  C. in a furnace, (2) a martensitic hardening by quenching at not more than 250 DEG  C., (3) a nucleation tempering at 425-500 DEG  C. for 1-48 hours and (4) a graphitising anneal at 850-1100 DEG  C. for 15 minutes-8 hours.  The Mg may be replaced wholly or in part by Ca 0.06-0.4%; Te 0.01-0.07%; Se 0.06-0.4%; Sn 0.06-0.4%; Bi 0.005-0.03%; Sb 0.06-0.4% and the Mo may be replaced wholly or in part by Ni 0.2-2%; Cu 0.5-5%; Mn 0.2-2%; W 0.1-1%; V 0.015-0.15%. Between steps (2) and (3) the casting may be treated at -10 DEG  to -195 DEG  C. to transform the austenite completely to martensite. Specifications 525,478, 678,487, 738,094, 742,399, 742,400 and 783,461 are referred to.
Patent GB-308775-A (GB)
Title: Improvements in spring-motors
IPC: F03G1/00
Filed: 1929-01-23
Abstract: 308,775. Kollmann, H. March 29, 1928, [Convention date]. Driving-mechanism.-In a spring motor each spring comprises two oppositely-coiled spirals e connected at their outer ends, their inner ends having pegs v which enter holes u in the plates c, t, d. The plates tare separated by distance sleeves m on 'the spindle b, and may be dismantled by axial movement. The springs e are made of wire, and the form of the .intermediate plates t may be modified. The plates t may have ratchet teeth co-operating with pawls so that the number of effective springs may be controlled. Fig. 8 shows an arrangement suitable for driving clocks. The spring element e comprising two oppositely-coiled spirals has at its ends eyes v which are secured by wedges q to the clock case n and to the driving wheel d.
Patent GB-821159-A (GB)
Title: Road vehicle steering mechanisms
IPC: B62D3/02
Filed: 1957-01-23
Abstract: 821,159. Cam mechanisms; conveying rotary motion. BURMAN & SONS Ltd., and BRIGGS, W. H. Jan. 8, 1958 [Jan. 23, 1957], No. 2398/57. Classes 80 (1) and 80 (3). In a vehicle steering gear wherein a pair of drop arms (not shown) on respective spindles h, Fig. 2, are moved in opposite directions by respective cranks i engaging grooves f in an axially-movable crosshead e, the crosshead being mounted on a spindle d, Fig. 1, which is moved axially by the driver through screw and nut or hydraulic means, the crosshead e is supported against lateral movement by two inclined shoulders g, Fig. 2, thereon, which engage the inner partspherical ends of the cranks i. The crank-pins k are part-spherical and engage the sloping edges of the grooves f. The two spindles h are offset on opposite sides of the axis of the spindle d.
Patent GB-253455-A (GB)
Title: Improvements in stretching devices for use in the mercerisation of stockings and other hosiery goods
IPC: D06B7/08
Filed: 1926-01-27
Abstract: 253,455. Friedrich, A. Jan. 27, 1926. Shaping and stretching made-up goods upon cores and internal frames.-In a stretching device for use in the mercerization of stockings &c. and comprising a stretching frame 2, 3, 4 and an annular clip 5 adjustable on the frame and open at one side so that it can be inserted in the tubular edge of the article A, the clip 5 has a portion 6, 7, 8 projecting inwards and reaching approximately to the centre of the space between the side members 2, 3 of the frame where it is hooked to engage a separate notched or holed member 10 or one of a series of hooks fixed to the base 1, or a cross bar adjustably carried by the frame members 2, 3.
Patent GB-997729-A (GB)
Title: A device for elastically connecting artificial dentures with the remaining natural teeth
IPC: A61C13/271
Filed: 1963-01-21
Abstract: 997,729. Securing artificial teeth. R. FUST. Jan. 21, 1963 [Jan. 22, 1962], No. 2485/63. Heading A5R. A device for detachably and resiliently connecting a partial denture to natural teeth comprises a sleeve 5 fixed in the denture, a resiliently flexible guide pin 1 securable to the natural teeth and having radial movement within the sleeve and a compression spring 3 acting between an abutment 6 in the sleeve and an adjustment nut 4 on the pin so that it tends to draw the pin into the sleeve. The abutments are formed respectively by a nut 4 adjustably threaded on the guide pin 1 and a constriction 6 or a screw 18 (Fig. 5) projecting radially in the sleeve 5. Undesirable relaxation of the spring is prevented by abutment between the end of the guide pin and a threaded plug 7 closing the sleeve. Connecting devices are embedded in the buccal side and in the lakeal side of each denture. When a single partial denture is used, portions of the guide pins projecting from the denture are pivotally connected (Fig. 5) to a tooth crown 20 which is placed on a natural tooth. When two partial dentures 21, 22 replacing molar teeth on both sides of the mouth are used, the portions of guide pins projecting from one partial denture are joined to corresponding portions of guide pins of the other partial denture, the two joining portions of the pins being covered by a plastic sheath 8 which is disposed behind the natural teeth between the dentures and secured to these teeth by spring clips 10. Soft plastics material 9 is placed between the dentures and the natural teeth.
Patent GB-492888-A (GB)
Title: Improvements in and relating to explosives and their process of manufacture
IPC: C06B45/32
Filed: 1937-01-28
Abstract: 492,888. Explosives. VEROLA, P., and BARON, C. Jan. 28, 1937, No. 2516. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 29, 1937.] [Class 9 (ii)] An explosive consisting ofametal (aluminium, magnesium, and the like) and an oxidizing- agent (nitrate, chlorate, or perchlorate of ammonia and the like) has at least the metallic particles coated before mixing with a mineral pitch melting at about 70‹ C. This pitch is the residue after distillation of petroleum oil which is not continued as far as the formation of coke. The oxidizing-agent may also be coated and this coating may consist of the aforesaid mineral pitch or may itself be an oxidizing-agent. According to one method of preparing the explosive, both constituents are coated and then sifted. The constituents are then mixed in the right proportions and then homogeneity is ensured by sifting again. According to one example, powdered magnesium is coated with the mineral pitch and ammonium nitrate is coated with a mixture of nitroglycerine and guncotton, the final composition being : nitroglycerine 7À5 per cent, magnesium 8À5 per cent, mineral pitch 3À5 per cent, guncotton 0À5 per cent, and ammonium nitrate 80 per cent. According to a further example, aluminium and ammonium perchlorate are both coated with the mineral pitch, the final composition being ammonium perchlorate 80 per cent, aluminium 16 per cent, and mineral pitch 4 per cent. If desired, cheap materials, such as sodium chloride or sodium or ammonium nitrate may be incorporated.
Patent GB-264660-A (GB)
Title: Improvements in and relating to egg poaching appliances
IPC: A47J29/06
Filed: 1926-01-29
Abstract: 264,660. Lyons & Co., Ltd., J., and Herbert, S. G. Jan. 29, 1926. Egg-cooking apparatus. - An egg-poaching device comprises one or more cup-like receptacles, each with a removable bottom formed of two or more separable portions, means being provided to cause said portions to diverge and to reassume the normal closed position. In the construction described the receptacle 2 has a handle 4 to which the separable portions 5, 6 forming the bottom are pivotally secured by a pin 9. The portions 5, 6 have offset lever arms 7, 8 to which are pivotally attached, by pins 13, 14, levers 15, 16 the other ends of which are pivoted on a pin 18 sliding in a slot 19 in the handle 4. The parts 5, 6 are normally kept closed by a spring 21 attached to the levers 15, 16, and may be diverged to release the egg by pressing together knobs 17 on pins 13, 14. Several receptacles, each operating as described, may be combined and provided with a common operating device.
Patent GB-171637-A (GB)
Title: Process for preserving in the fresh condition organic matters and particularly meat and fish
IPC: A23B4/00
Filed: 1921-01-20
Abstract: 171,637. Cholet, L. A. C. Jan. 20, 1921. Preserving meat and fish.-Meat and fish are rapidly cooled to a temperature not below -1‹ C. and subjected meanwhile to a current of gaseous antiseptic, such as sulphur dioxide. The meat is then heated by a current of sterilized air at 50 to 60‹ C. until the surface has resumed the normal temperature, when the temperature of the air is .gradually reduced to normal.
Patent GB-1429461-A (GB)
Title: Method of and apparatus for heat treatment of  glass sheets
IPC: C03B27/02
Filed: 1974-01-21
Abstract: 1429461 Tempering glass sheet SAINTGOBAIN INDUSTRIES 21 Jan 1974 [23 Jan 1973] 02713/74 Heading C1M In the tempering of a glass sheet, at least one surface of the heated sheet is placed in contact with or adjacent a cooling member at a lower temperature than that of the glass surface and then the glass sheet is immersed in a liquid bath. As shown in Fig. 1, a heated glass sheet 1 suspended by tongs 2 is placed between cold metal plates 4, 4<SP>1</SP> which are moved by jacks 6, 6<SP>1</SP> closely adjacent the sheet 1, the plates 4, 4<SP>1</SP> are then removed and the slightly cooled sheet 1 lowered into a liquid bath 3. The plates 4, 4<SP>1</SP> may be of copper or steel and are preferably perforated and covered by a glass or silica fibre cloth 5. The plates 4, 4<SP>1</SP> are held in position for a time between a few tenths of a second to several seconds. The liquid bath is preferably an oil of flash point 318‹ C. held at a temperature of 175‹ C. In place of perforated plates 4, 4<SP>1</SP>, metal enclosures (7, 7<SP>1</SP>) may be used through which a cooling fluid is circulated. As shown in Fig. 3, a glass sheet 1 is transported by pairs of rollers 12 through a heating furnace 11  and then through a pair of cooling rollers 10 to fall into a liquid bath 13. The rollers 10 are of silica or alumina frit and may be covered by a jacket of glass or silica fibre cloth. The inclination of the cooling member relative to the sheet may be varied to remove temperature differences across the surface of the sheet.
Patent GB-246869-A (GB)
Title: Improved liquid-tight accumulator or secondary battery
IPC: H01M50/179
Filed: 1926-01-30
Abstract: 246,869. Peel, E. Jan. 30, 1925, [Convention date.]. Void [Published under Sect. 91 of the Acts]. Gas eaits; cells; connections; separators.-The cover 5 of an accumulator is provided with a boss 6 in which is formed an aperture into which is screwed a hard rubber hollow plug 18. The plug has a milled head having a recess 19 on the underface to receive a packing washer. A conical teat 21 with a fine axial vent 22 projects from the head into the plug. The plug is preferably slightly conical and is provided with a sloping base 24 having a fine aperture 25 at its lowest point. The electrodes are provided with integral terminals 12, 13 having flanges 14 engaging the cover and tapered ends. 15 passing through it, the ends 15 being melted outside the cell to form contact caps 16. The container 4 may be of celluloid, vulcanized rubber or guttapercha and the cover 5 of pitch. The electrodes fit into recesses in an insulating sole-plate; they may be separated by corrugated plates of wood or vulcanite.
Patent GB-410918-A (GB)
Title: Improvements relating to concrete mixers for use upon roads, or to other machines of a like character
IPC: E01C19/47
Filed: 1933-01-28
Abstract: 410,918. Concrete mixers. LANGFORD, H., 96, Plymouth Place, Leamington Spa, and WINGET, Ltd., The Cape, Warwick. Jan. 28, 1933, No. 2775. [Class 86.] In a concrete mixer mounted on wheels, the power means to raise the hopper is utilized to propel the vehicle simultaneously for a short distance. A rope 13, wound on a drum on the back axle 4, is unwound as the hopper rises and the machine is caused to advance ; simultaneously another rope 30 is uncoiled from a drum 26, containing a helical spring, on to another drum integral with the first drum on the axle 4 ; on lowering the hopper, the rope 13 is rewound on its drum which may be allowed to rotate freely backward on the axle by pawl and ratchet mechanism ; or the drum may be rewound by hand. Clutch mechanism may be provided to free the drum on the axle 4 so that, if desired, the machine is not moved when the hopper is raised. Ropes, one of which is shown at 8, connected to pulleys on a shaft driven by the engine, are used to raise and lower the hopper. In a modification where the hopper is slidably raised instead of pivoting, duplicate drum mechanisms are provided on the rear axle, and the ropes from these are attached to drums connected by clutch mechanism to a shaft used for raising or lowering the hopper.
Patent GB-885462-A (GB)
Title: Improvements in and relating to the production of coloured filaments, threads and the like from viscose
IPC: D01F2/16
Filed: 1958-01-28
Abstract: Coloured regenerated cellulose threads are made by dispersing a pigment in a stable, viscous aqueous solution of a water-soluble salt of a high molecular weight synthetic addition polymer of acrylic or methacrylic acid which is compatible with viscose, injecting the dispersion into a main stream of viscose and extruding the mixture of viscose and dispersed pigment into a coagulating bath to form a thread.  The acrylic polymer may be polyammonium methacrylate or the corresponding sodium or potassium salt, or the sodium, potassium or ammonium salts of polyacrylic acid.  The aqueous solution of the acrylic polymer preferably has a viscosity substantially the same as that of the viscose to which it is to be added.  The pigment may be burnt chromium oxide, carbon black or titanium dioxide, acid- and alkali-stable vat dyes in the unreduced state, or azoic dyestuffs. The Provisional Specification states that the pigment may be dispersed in an aqueous solution of polyvinyl alcohol or polyvinylpyrrolidone. Specifications 290,693 and 738,020 are referred to.