baber/WOPTO huggingface dataset:
Patent GB-749414-A (GB)
Title: Biosynthesis of hydrocortisone
IPC: C12P33/00
Filed: 1954-06-30
Abstract: 11b -Hydroxy-steroids of the pregnane series are obtained by subjecting the corresponding 11-desoxy-steroid to the action of an enzyme of a micro-organism in an aqueous medium in the presence of oxygen, the microorganism being selected from the group of genera composed of Colletotrichum, Tricothicium and Coniothyrium, and recovering the 11b -hydroxy-steroid formed.  Preferably the species is of the group consisting of Colletotrichum pisi, Colletotrichum phomoides, Tricothecium roseum and Coneothyrium helleborine. Starting steroids include 11 - desoxy - 17a  - hydroxycorticosterone, progesterone, desoxycorticosterone, and 17a -hydroxyprogesterone.
Patent GB-623562-A (GB)
Title: Improvements in and relating to liquid measuring and filling means for containers, tins and the like
IPC: B65B3/32
Filed: 1946-06-28
Abstract: 623,562. Reciprocating pumps. ABRAHAMSEN, R. June 28, 1946, No. 19437. Convention date, Aug. 21, 1940. [Class 102(i)] An apparatus for delivering measured quantities of liquid, such as tomato juice, consists of a liquid container connected to an inlet port 3 of a cylinder 1 containing a piston 9 driven by a connecting rod 5 and a screwed-in crank pin 10 in a crank disc 7 rotated by a hand lever 13. The crank pin 10 is adjustable radially, being carried by a block 11 slideable in a groove in the crank disc 7 and locked in position by the screwed crank pin 10. A sleeve valve 14 having slots 18 therein slides within the cylinder and controls the inlet and outlet ports. The valve 14 is operated by means of a rod 15 and a cam track 17 in the crank disc 7.
Patent GB-445001-A (GB)
Title: Improvements in and relating to a branding device
IPC: B44B7/00
Filed: 1935-07-08
Abstract: 445,001. Branding by heat; printing- surfaces. SUSS NANDOR PRACISIOS MECHANIKAI ES OPTIKAI INTEZET RESZVENYTARSASAG, 37, Cs÷rsz Ucca, Budapest. July 8, 1935, No. 19457. Convention date, July 6, 1934. [Class 100 (ii)] A branding- device particularly for cancelling stamps and franking postal matter comprises a branding-die and a coacting underlay, one of which is heated, the brand and underlay being brought together by the operation of a hand lever, and held pressed together for a predetermined time and then separated independently of the position of the lever. An impressionpad 11 fixed to a rod 13 slidable in a guide 14 is moved up to an electrically-heated stationary die 4 by means of a lever 16 engaging the rod through the intermediary of a spring-pressed disc 17, a clockwork device 37 determining the time the members 4, 11 remain in contact; by adjusting a lever 47, the time may be varied. The lever 16 is fixed to a shaft 15 which is rocked to raise the lever by depressing a hand lever 49 acting through links 23, 22, 20, and a pawl 28. Consequent on the movement of the lever 16, an arm 41 rigid therewith pulls on a pivoted arm 39 by means of a spring 42 whereby movement of the clockwork is initiated, and on subsequent movement of the arm 39, a roller 40 on the end thereof disengages a latch 34 holding up the pawl 28 which is thereupon released and allows a spring 26 to return the lever 16 to normal position ; the time taken for the arm 39 to travel to the latch 34 controls the time of branding contact. A bar 44 connecting the arms 39, 41 returns the arm 39. In a modification, Fig. 8 (not shown), the pad 11 is stationary and the die 4 is movable by means of parallel links: Instead of heating the die, the pad may be heated so that the design is unbranded on a branded background. In a further modification, Fig. 9 (not shown), the time of contact is controlled by means of a bi-metallic strip which is heated and consequently bends and closes a switch in the circuit of an electromagnet acting on the arm 39 ; the strip is heated electrically, a resistance being adjusted to vary the time taken. Interchangeable date &c. types are secured in a slot in the die by means of a slide having prongs engaging grooves in the sides of the types. Specification 29000/11, [Class 100 (ii)], is referred to.
Patent GB-147500-A (GB)
Title: Start and stop devices for talking machines
IPC: G11B17/02
Filed: 1920-07-08
Abstract: 147,500. Columbia Graphophone Manufacturing Co., (Assignees of Woods, C. E.). Sept. 8, 1913, [Convention date]. Bowden mechanism.-Mechanism for controlling a phonographic dictaphone contains a Bowden wire with fixed core and movable sheath. The terminal 37 which effects the control is formed as a tube into which screws a plug 49, Fig. 7, secured to the sheath 42 of the cable. The tube 37 is slotted at 53 to pass a pin 44 which attaches to the fixed casting 38 a block 43 fastened to the end of the core 41 of the cable. At its transmitting end the cable is similarly formed and is led into the speaking-tube of the dictaphone. A handgrip is mounted on the speaking-tube by means of links, and is arranged to press in the terminal corresponding to 37 when grasped in the hand.
Patent GB-195256-A (GB)
Abstract: 195,256. Tetlow, C. E. April 22, 1922. Mud-guards rotating with wheels. - Flanges a are provided on each side of a solid or pneumatic tyre preferably within the width of the wheel and of such dimensions as to be normally out of contact with the road, strips p being removable from the flanges to allow for wear of the tyre. The flanges may be integral with or attached to the tyre or may be formed on a backing member as shown in Fig. 3. Reference has been directed by the Comptroller to Specifications 6227/09, 20837/12, 134,763, 157,646, 161,056, and 172,863.
Patent GB-855212-A (GB)
Title: 4-aminoquinaldinium salts
Inventor: CALDWELL DENNIS
IPC: C07D215/42
Filed: 1958-06-19
Abstract: The invention comprises 1-alkyl-4-aminoquinaldinium salts of the formula:  <FORM:0855212/IV(b)/1> wherein n is an integer of from 6 to 17 inclusive and X is an amino.  The compounds are prepared by heating 4-aminoquinaldine with a C7-18 alkylhalide in presence or absence of an organic solvent for at least 25 hours, the halide amino X being converted if desired into other anions by double decomposition with, for example, acetates, bicarbonates, lactates, succinates, maleates and tartrates.ALSO:A bactericidal composition comprises as the active ingredient 1-alkyl-4-amino-quinaldinium salts of the formula:  <FORM:0855212/VI/1> wherein n is an integer of from 6 to 17 inclusive and X is an anion (e.g. halide, acetate, bicarbonate lactate, succinate, maleate or tartrate), dissolved in water or aqueous alcohol.
Patent GB-488815-A (GB)
Title: Improved manufacture of monovinylacetylene
IPC: C07C2/38
Filed: 1937-07-16
Abstract: Monovinylacetylene is obtained by passing acetylene at a raised temperature over a solid catalyst containing (1) a cuprous salt, (2) an inorganic water-soluble normal salt, preferably a halide, of a metal (other than copper) of the first, second or third periodic group, including the rare-earth metals, and (3) an organic polyhydroxy compound, e.g. butylene glycol or other glycol, glycerol, mannitol or dulcitol, or an organic or inorganic nitrogen compound in which the nitrogen is not present in an acid radicle, e.g. urea, aniline hydrochloride, an ammonium salt, an acid amide, a nitrile, or an amine.  The catalyst may be applied to a carrier.  The reaction is generally effected at 100-180 DEG  C., with or without application of pressure.  Addition to the acetylene of a small proportion of a volatile acid, e.g. acetic acid, is advantageous.  Excess heat of reaction may be removed by cooling the reaction vessel or by using an excess of acetylene or by diluting the acetylene, e.g. with nitrogen. The reaction gases, preferably after separating the vinylacetylene, may be returned to the reaction vessel.  Examples are given in which acetylene is converted into monovinylacetylene with the aid of catalysts prepared as follows: (1) a mixture of cuprous chloride, magnesium chloride and glycerol is heated with water and stirred with pumice, and the mass is dried in a current of hydrogen; (2) an aqueous paste of cuprous chloride, magnesium chloride and urea is applied to pumice, which is then dried in a current of nitrogen; (3) cuprous chloride, magnesium chloride and aniline hydrochloride are applied to pumice as in example 2; (4) an aqueous paste of cuprous chloride, magnesium chloride and ammonium chloride is applied to active carbon, which is then dried in a current of nitrogen; (5) cuprous chloride, magnesium chloride and mannitol are applied to pumice as in example 2.  Specification 451,442 is referred to.  The Specification as open to inspection under Sect. 91 refers to propionic and butyric acids as acids which may be added in small proportion to the acetylene.  Also, it specifies sorbitol as a polyhydroxy compound which may be present in the catalyst.  This subject-matter does not appear in the Specification as accepted.
Patent GB-752163-A (GB)
Title: Preparation of purified formaldehyde
IPC: C07C45/85
Filed: 1954-07-06
Abstract: Anhydrous monomeric formaldehyde is made by reacting aqueous formaldehyde with a saturated alcohol having a boiling point of at least 100 DEG  C. whose molecule consists of carbon, hydrogen and oxygen and is free from carbonyl groups, removing water from the reaction product, which comprises a mixture of a hemifornal, water polyhemiformals and unreacted starting materials, and thermally decomposing the product to give a mixture of formaldehyde and alcohol vapour, from which the formaldehyde is separated by partially condensing the vapours.  Preferably 30 to 60 per cent aqueous formaldehyde is reacted with a saturated alcohol having a boiling point of above 110 DEG  C., such as an aliphatic or cycloaliphatic alcohol of 5 to 10 carbon atoms, e.g. cyclohexanol; the reaction product is dehydrated by distillation to a water content of not more than 0.5 per cent and is then sparged with nitrogen or other inert gas at a temperature of 10 DEG  to 75 DEG  C. until the concentrations of methyl formate and carbon dioxide are each below 0.01 per cent of the available formaldehyde; the formaldehyde-alcohol reaction product is decomposed at a temperature between 85 DEG  C. and the boiling point of the alcohol and the formaldehyde and alcohol vapours are condensed at a temperature of 0 DEG  to 25 DEG  C. at atmospheric pressure.  A continuous process for carrying out the reaction is also described.  Specified alcohols which may be used in the formation of the alcohol-formaldehyde (hemiformal) addition product include 3-methyl-1-butanol, 1 - hexanol, 2 - methyl - 1 - pentanol, 4 - methyl - 2 - pentanol, methyl hexanol, 1-heptanol, cyclopentanol, cyclohexanol, cycloheptanol, methyl cyclohexanol, ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol monomethyl ether, 2-ethoxy ethanol, 2-butoxy ethanol, 2:2-dimethyl propanol-1 and 2-methyl butanol-2.  In examples (1)-(6) aqueous formaldehyde and cyclohexanol are reacted together and the resulting cyclohexyl hemiformal mixture is decomposed to give formaldehyde, and (7) and (8) the reaction product of diethylene glycol monoethyl ether is formed and decomposed to give formaldehyde.
Patent GB-166897-A (GB)
Title: Improved film developing apparatus
IPC: G03D13/04
Filed: 1921-07-23
Abstract: 166,897. Morant, H. C. F. July 23, 1920, [Convention date]. Trays, dishes, and containers for roll films and daylight developing.-In a daylight developing- tank for roll films, the film is drawn from the supply spool 10, Fig. 1, in a zig-zag path over rollers 11, 12, by means of a cord 25 which is joined to the end 26 of the film F and wound on a spool 24 by an outside handle 28, Fig. 2. The roller or rollers 11 over which the emulsion side of the film passes are recessed so as to contact with the film only at the edges. The rollers are mounted on a frame E within a tank 1 which is fitted with non-actinic panels 4 and a transparent non-actinic cover 5. One of the sides 8 of the frame E is hinged and provided with projections and holes for the spindles of the rollers 10, 11, and the winding-shaft 30 and the opposite side 8 has also pins for engaging the spindles of the rollers. The sides 7, 8 are held for insertion into the tank by hooks 16. The tank is filled through the filling-chamber 2 having a communicating orifice 3 at the bottom. Instead of the side 8 being hinged it may be made detachable.
Patent GB-406914-A (GB)
Title: Manufacture of indigoid dyestuffs
IPC: C09B7/10
Filed: 1933-07-13
Abstract: Unsymmetrical indigoid dyestuffs are produced by condensing 4 : 7-dialkyl-3-oxythionaphthenes, which may have a halogen in the 5-position, or a -derivatives thereof capable of reaction, with 3-oxythionaphthenes or a  derivatives thereof, this second component being at a different stage of oxidation from the first component and having different substituents in the benzene nucleus.  The following a -derivatives of the said 4 : 7-dialkyl-3-oxythionaphthenes are mentioned: a -carboxy, a -keto, a -mono and di-halogen and a -arylido derivatives.  The dyestuffs may be submitted to halogenation.  In examples: (1) 5-chlor-4 : 7 - dimethyl - 3 - oxythionaphthene - 2 - (p - dimethylaminoanil) is condensed with 1-chlor-2 : 3-naphthothioindoxyl: (2) the dyestuff obtained in example (1) is vatted and used for dyeing cotton; the dyeing of wool, silk and artificial silk is mentioned; (3) 5-chlor-4 : 7-dimethyl-3-oxythionaphthene is condensed with 5 - chlor - 7 - methyl - 3 - oxythionaphthene - 2 - (p - dimethylaminoanil), 6-ethoxy-3-oxythionaphthene and with 1 : 2-naphthothioindoxyl-2-(p-dimethylaminoanil); (4) 4 : 7-dimethyl-3-oxythionaphthene is condensed with 7-methyl-3-oxythionaphthene - 2 - (p - dimethylaminoanil); (5) 4 : 7 - dimethyl - 3 - oxythionaphthene - 2 - (p - dimethylaminoanil) is condensed with 2 : 1-naphthothioindoxyl and with 1-chlor-2 : 3-naphthothioindoxyl.  The properties of the dyestuffs obtained by condensing the following pairs of components are tabulated: 5-chlor-4 : 7 - dimethyl - 3 - oxythionaphthene - 2 - (p - dimethylaminoanil) and 6-chlor-4-methyl-3-oxythionaphthene or 2 : 1-naphthothioindoxyl, 5-chlor-4 : 7-dimethyl-3-oxythionaphthene and 6 - chlor - 5 - methyl - 3 - oxythionaphthene - 2 - (p - dimethylaminoanil) or 8-chlor-1 : 2-naphthothioindoxyl - 2 - (p - dimethylaminoanil) or 4 : 7 - dimethyl - 3 - oxythionaphthene - 2 - (p - dimethylaminoanil, and 4 : 7-dimethyl-3-oxythionaphthene-2-(p-dimethylaminoanil) and 4-methyl-6-chlor-3-oxythionaphthene or brominated 4-methyl - 6 - chlor - 3 - oxythionaphthene.  The following components are also mentioned: 4 : 6-di-methyl-7-chlor-3-oxythionaphthene-2-(p - dimethylaminoanil), 6 - chlor - 3 - oxy - thionaphthene-2-carboxylic acid, 2 : 3-naphthothioindoxyl and 4 : 7-dimethyl-5-brom-3-oxythionaphthene-2-carboxylic acid.  4 : 7-Dimethyl-3-oxythionaphthene is prepared from 2 : 5-dimethyl-1-diazobenzene by treating with potassium xanthate, saponifying to form the mercaptan and condensing with chloracetic acid.  The resulting thioglycollic acid, after conversion to the acid chloride is finally submitted to ring closure by means of aluminium chloride.
Patent GB-1037781-A (GB)
Title: Electric digital storage circuits
Inventor: SALAM HASSAN PADDY ABDEL
IPC: H03K17/58
Filed: 1961-06-02
Abstract: 1,037,781. Tunnel-diode switching circuits. ENGLISH ELECTRO-LEO-MARCONI COMPUTERS Ltd. July 26, 1962 [June 2, 1961], No. 19960/61. Heading H3T. A tunnel diode 10, biased so as to be capable of assuming two stable states is switched from its low-voltage to its high-voltage state when any one of the AND-gates 16 has simultaneous positive inputs applied to its terminals 19, 20 and may then be reset to its low-voltage state by the application of a negative reset pulse to the terminal 26. The tunnel diode 10 is thus set in response to a " unit " or positive input signal at any one of input terminals 19 when a positive gating pulse is applied to the corresponding gating terminal 20.
Patent GB-1376875-A (GB)
Title: Method of producing measuring tapes in stainless steel and measuring tape produced thereby
IPC: G01B3/10
Filed: 1973-04-16
Abstract: 1376875 Etching VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT GORNOI GEOMEKHANIKI I MAKSHEIDERSKOGO DELA and LENINGRADSKY STALE PROKATNY ZAVOD 16 April 1973 20009/73 Heading B6J Stainless steel strip is heated at a low temperature (e.g. 400-450‹ C. for 5-8 hours) in an oxidizing atmosphere (e.g. air) to form an oxide film over its surface, the surface is masked in areas where it is desired to form scale marks (lines, numerals), and etched with ferric chloride to remove at least the oxide in the unmasked areas, the masking material (e.g. paint) then being removed, so that the resulting scale marks show as dark oxide against a bright steel background.
Patent GB-148135-A (GB)
Title: Improvements in or relating to the manufacture of articles of cement
IPC: B28B23/00
Filed: 1920-07-09
Abstract: 148,135. Smreker, O. March 29, 1919, Processes.-Relates to the manufacture of concrete articles, such as beams, pillars, columns &c., of the kind having inserts of asbestos cement adapted to receive screws, rivets, &c., and consists in the employment of sieves or nettings of fine wire, sheets, asbestos, fabric &c., such sieves &c. being of a shape corresponding to the insert and of a mesh such as to allow the passage of the binder whilst preventing the passage of lumps from the concrete to the asbestos cement portion. The sieves &c. remain in the article. In the Specification as open to inspection under Sect. 91 (3) (a) the invention is described as applicable to railway sleepers and masts. This subject-matter does not appear in the Specification as accepted.
Patent GB-1047523-A (GB)
Title: Telephone instruments
Inventor: WILSON FREDERICK ARTHUR
IPC: H04M1/58
Filed: 1963-05-20
Abstract: 1,047,523. Substation circuits; automatic volume control. H.M. POSTMASTER GENERAL. April 29, 1964 [May 20, 1963], No. 20051/63. Headings H4K and H4R. In a subset incorporating a receiver, a transmitter said a transistor circuit, a first Zener diode MZ2 is connected in shunt with the transmitter so as to restrict the direct current flowing therethrough in accordance with the length of line to which the subset is connected and a second Zener diode MZ1 is connected in series with the transmitter whereby the two diodes provide means for regulating the bias supply of the transistor circuit. The bias supply is taken from the junction of high A.C. impedance L2 and capacitor CA which thus acts as a low impedance source. Inductor L1 provides a high impedance to speech signals and it may be wound on the same core as L2. In the embodiment described the transistor circuit is an anti-side tone and speech level regulating network which is more fully described in Specification 1,047,522 but it is mentioned that the biasing arrangement is equally suitable for use with a speech amplifier.
Patent GB-1260702-A (GB)
Title: Process for production of paper from polyvinyl alcohol synthetic fibers
IPC: D21H21/08
Filed: 1969-04-18
Abstract: 1,260,702. Paper. KURARAY CO. Ltd. 18 April, 1969 [19 April, 1968], No. 20061/69. Heading D2B. Paper is made by a process which includes disintegrating staple fibres of water-insoluble polyvinyl alcohol and staple fibres of hotwater-soluble polyvinyl alcohol in water, forming a slurry, and wherein, prior to the papermaking step, the fibres have been treated with a silicone; a complex of a fatty acid containing 12-24C atoms and a metal chloride; a metal soap (as defined below); a ketene dimer (as defined below); a methylolamide of a fatty acid containing 12-24C atoms; or a cationic surface-active agent. The metal coaps are salts of di- or tri-valent metals e.g. Ca, Mg, Pb, Mn, Al, with a saturated or unsaturated fatty acid having 12-24C atoms; and the ketene dimers are those with alkyl groups containing 12-24C atoms. Rosin modified rosin, polyethylene oxide, potassium metaphosphate and poly (sodium acrylate) may be added to the slurry. The silicone may be an organopolysiloxane oil or a siloxane/oxyalkylene block copolymer, and may be applied as an emulsion or as a solution in a solvent. Metal complexes with fatty acids may be Werner complexes including chromium or, preferably, aluminium, chloride. The cationic surface-active agent may be a long-chain pyridinium halide, long-chain alkoxy-methyl-pyridinium chloride, alkyl trimethyl ammonium chloride, long-chain alkyl-dimethyl-benzyl ammonium chloride, or, preferably, long-chain alkyl amide methyl pyridinium chloride where the longchain alkyl group has 11-23C atoms. The addition of the water-repellants may be made at any stage prior to sheeting.
Patent GB-217794-A (GB)
Title: Improvements in sock suspenders
IPC: A41F11/16
Filed: 1923-08-07
Abstract: 217,794. Gilchrist, S. H. Aug. 7, 1923. Sock-suspenders. - The leg band of a sock suspender comprises a complete web of continously woven, plaited, or knitted material, with a series of spaced longitudinal threads a, and a large number of apertures c extending transversely and d longitudinally throughout the web for ventilating purposes and to afford a cool grip on the leg.
Patent GB-1303586-A (GB)
IPC: B60T15/04
Filed: 1971-04-19
Abstract: 1303586 Fluid pressure brakes; valves ROBERT BOSCH GmbH 19 April 1971 [11 Feb 1970] 20107/71 Headings F2F and F2V A hand-brake valve for a vehicle braking system has a double-seat valve 19<SP>1</SP>, 22, 23, 24<SP>1</SP> for controlling the venting of, and the pressure medium supplied to, a brake line leading to the brake cylinders, the two valve seats 19<SP>1</SP>, 24<SP>1</SP> being arranged on piston members 19, 24 axially movable in the valve housing the valve being of non-reacting construction and the piston 24 carrying the outlet valve seat being subjected to the force of control springs 21. An additional one-way valve having a seat 29 and valve member 30 controls the pressure in a blocking line leading from spring-loaded brake cylinders to the atmosphere and is opened by a valve stem 15 before the double-seat valve is changed over. A cam-plate 6 is moved by means of a handle 4 to operate the valve.
Patent GB-1292419-A (GB)
Title: A holder for writing utensils, particularly tube point writing pens
Inventor: ANDERKA GEROLD
IPC: A45C11/34
Filed: 1971-04-19
Abstract: 1292419 Writing appliance holders H RIEPE and K H DITZE [trading as RIEPEWERK] 19 April 1971 [5 May 1970] 20349/71 Heading B6P A holder for a writing utensil 1 has a receiving socket 3 pivotably mounted in a carrier 2 to which a bail 4 is fixed, the bail bearing on an end of the utensil held in the socket when the latter is in a retaining position. An elastic receptacle 5, e.g. of silicone rubber may be positioned in the socket 3 to prevent the inked point of a pen, for instance, from drying up. The socket is pivoted about a point 6 until a stop 11 on the socket engages an abutment 13 on the carrier 2. A number of carriers 2 may be interconnected via dove tail elements (9), (10), Fig. 3 (not shown), provided on the sides of each carrier and may be held in a support by these elements or by a wedge 8 on each carrier. The holder may be made of transparent plastics material.
Patent GB-572187-A (GB)
Title: Improvements in or relating to sheet metal clips for securing fabric or like covering to a support
IPC: B64C3/26
Filed: 1943-12-06
Abstract: 572,187. Clips. UNITED-CARR FASTENER CORPORATION. Dec. 6, 1943, No. 20361. Convention date, Dec. 10, 1942. [Class 44] A clip for securing fabric to a support comprises a metal strip 1 having a reinforcing channel 2 and its ends bent over and folded to form pointed barbs 7. The ends are passed through the fabric and holes 12 in the support and the flat sides of the barbs engage the underside of the support.