baber/WOPTO huggingface dataset:
Patent GB-524080-A (GB)
Title: Improvements in eddy current dynamometers
IPC: H02K49/04
Filed: 1939-01-21
Abstract: 524,080. Rotary-absorption dynamometer. HEENAN & FROUDE, Ltd., and ROSS, E. G. Jan. 21, 1939, No. 2111. [Class 106 (ii)] Comprises an eddy current machine of the type employing a drum or cylindrical motor having two separate variations of the excitation thereof, a normal one varying with the speed of the dynamometer and a second with a different characteristic, wherein the field coil of the dynamometer operates in an unsaturated magnetic state and has a major excitation of series characteristic and another generating an appreciable potential difference at the start of the rotation of the armature and a further one to overcome the armature reaction, when the speed and load increases. The exciter dynamo 1 for the field coil 2 of the dynamometer operates in an unsaturated magnetic state and is provided with a series coil excitation 5, an excitation 3 from an external supply through a potentiometer 4, and an auxiliary shunt winding 6 of high resistance which is converted to the field coil 2 of the dynamometer. By suitably choosing the excitations 3, 5 and 6 the required relationship between torque and speed is obtained. A potentiometer 7 may be arranged in parallel with the field coil 2. A regulating resistance 8 in series with the winding 6 may be used. Further, the excitation of the dynamometer may be divided so that a portion 9 may be excited from the same source as the field 3. The coils 2 and 9 may be additive or subtractive. A potentiometer 10 may be arranged in parallel with the coil 9. If desired, the resistances 4, 10 may be connected mechanically so that the regulation of coil 3 will bear a definite relationship to the excitation of coil 9. Further, resistances 4 and 8 may be connected mechanically so that the regulation of coil 6 has a definite relationship to the excitation of coil 2. Other variations may be used by connecting mechanically resistances 10, 7 or 4, 10 and 8. Variable resistances in series with coils 2, 9 as at 13, 14 may be manually controlled, controlled by the movement of the dynamometer carcase or from a governor on the dynamometer shaft.
Patent GB-246998-A (GB)
Title: Improvements in or relating to tobacco pipes and cigar and cigarette holders
IPC: A24F7/00
Filed: 1925-01-24
Abstract: 246,998. Evans, T. Jan. 24, 1925. Tobacco pipes and cigar and cigarette holders. - A mouthpiece a for the use of smokers having artificial teeth is provided with a thin flange b inclining upwards and rearwards and having a flat outer face d. A smaller flange c may be provided on the lower side of the mouthpiece.
Patent GB-842496-A (GB)
Title: Production of heat-resistant non-woven fibrous webs
IPC: B32B27/00
Filed: 1958-01-23
Abstract: 842,496. Agglutinated fibrous material; proofing for electrical insulation; proofing against water and chemicals. DU PONT DE NEMOURS & CO., E. I. Jan. 23, 1958 [Jan. 25, 1957], No. 2350/58. Class 140. A heat-resistant non-woven dense fibrous web comprising a substantial proportion of polytetrafluoroethylene fibres is uniformly impregnated with a fluorinated ethylene polymer by depositing a water-soluble wetting agent throughout the web, gradually immersing the web containing the wetting agent in an aqueous dispersion of a fluorinated ethylene polymer at a rate such that the level of the aqueous dispersion within the web is at all times substantially the same as that outside it, coagulating the fluorinated ethylene polymer in the web, and removing volatile substances from the web and also at least partially coalescing the fluorinated ethylene polymer, e.g. by heating or by pressing, as by calendering. The web may consist entirely of P.T.F.E. fibres, or it may contain P.T.F.E. fibres, preferably in preponderating amount, in admixture with other heat-resistant fibres, e.g. of glass, asbestos or heat-treated polyacrylonitrile. The fluorinated ethylene polymer may be P.T.F.E., a copolymer of tetrafluoroethylene and hexafluoropropylene, polyvinyl fluoride, polymonochlorotrifluoroethylene, polydichlorodifluoroethylene, polytrichloromonofluoroethylene, or a copolymer of vinylidene fluoride and hexafluoropropylene. The wetting agent may be an alkaryl polyglycol ether, e.g. octylphenyl polyglycol ether, in amount between 0.1% and 15%, preferably betwee 0.5 and 2.0% by weight of the web. It may be applied in solution, in e.g. toluene, and the solvent driven off by heat. The fluorinated ethylene polymer dispersion contains a wetting agent which may be identical with an is preferably of the same class (non- ionic, anionic or cationic) as that deposited in the web, or one may be non-ionic and the other anionic or cationic. The fluorinated ethylene polymer may be coagulated in the web by the freeze-coagulation method, or by immersion of the impregnated web, before it is dried, in a solution of an electrolyte or an organic coagulating agent such as acetone, or by heating the impregnated web to a temperature at which the dispersion is unstable, e.g. by dielectric heating. After coagulation, the product may be heated to free it from water, to decompose or remove the wetting agent or agents, and to cause the polymer to coalesce at least partially. The products may be used for electrical insulation, or as gaskets under corrosive conditions. Specification 789,786 and U.S.A. Specification 2,549,935 are referred to. Reference has been directed by the Comptroller to Specification 796,610.
Patent GB-931050-A (GB)
Title: Binary counter arrangement
IPC: H03K21/00
Filed: 1962-01-23
Abstract: 931,050. Counters. HUGHES AIRCRAFT CO. Jan. 23, 1962 [Feb. 17, 1961], No. 2447/62. Class 106 (1). A binary forward-counting device is combined with a buffer store which compensates for pulses representing a reverse count. A pulse source 52 which may be operated by the motion of a mechanical element issues pulses Pp in respect of " positive " pulses and pulses Np in respect of " negative " pulses which may occur due to unevenness in the motion of the mechanical element. Flip-flops 14, 16 are normally true so that AND gate 18 passes " positive " pulses Pp to the counter 10. A " negative " pulse sets both flip-flops 14, 16 to false. The next " positive " pulse is therefore not counted but by passing through OR gates 20, 22 restores 14, 16 to true. In the case of two " negative " pulses the second sets 16 true. The next " positive " pulse reverses both 14 and 16 through OR gates 20, 22 so that only 14 is true while a second " positive " pulse restores 16. Fig. 2 (not shown) includes the additional feature of overshoot capability and count direction choice. If the mechanical element advances too far an unwanted extra pulse may be generated. To compensate for this the code for zero is 00 . . . 01 and resetting in such a case sets flip-flop 16 to false. Therefore at the beginning of the next count the first Pp pulse is not counted but sets 14 and 16 to true. A further embodiment provides for up to six " negative " pulses.
Patent GB-717143-A (GB)
Title: An improved baling machine
IPC: A01F15/10
Filed: 1952-01-30
Abstract: 717,143. Baling-presses. CULLEY, W. T. Jan. 28, 1953, [Jan. 30, 1952.] No. 2455/52. Class 94 (I)]. A baling-press particularly for hay or straw, comprises frame members 3 enclosed by panels 5 to form a baling chamber, a ram 7 slidable in the frame members under the action of a crank and connecting rod 9, 8, and auxiliary pressure members 16 having slots 18 engaging a pivot pin 17 and connected at their upper ends by a shaft 2 coupled by links 24 to the ram. The pressure members are retracted clear of the ram during the compression stroke, but are projected through slots 20 in the wall of the baling chamber on the return stroke so as to apply further pressure to and prevent retrograde movement of the material undergoing compression. The inward movement of the members may be assisted by springs and they may be mounted on the bottom or sides of the baling chamber. The ram 7 comprises a box frame 12 fitted with a pressure plate 14 and step 15. The spacing of the rear ends of the frame members 3 may be adjusted by screw and nut mechanism 25-27 to vary the density of the bales. The press is mounted on a wheeled chassis and may be fitted with a pick-up device.
Patent GB-1268173-A (GB)
Title: Novel bacteriolytic enzyme and process for the production thereof
IPC: C12N9/14
Filed: 1970-01-19
Abstract: 1,268,173. Medicines &c. comprising enzymes. TAKEDA YAKUHIN KOGYO K.K. 19 Jan., 1970 [18 Jan., 1969], No. 2460/70. Heading A5B. [Also in Division C3] An enzyme from Achromobacter lyticus (see Division C3) is bacteriolytic and may be included in pharmaceutical compositions. Examples are given of a troche, a buccal, a toothpaste, a tooth-powder, an eye-wash, and a bactericidal cosmetic cream and lotion. The enzyme may also be in chewing gum, lozenges, foods and beverages, and mouth-washes.
Patent GB-256482-A (GB)
Title: Improvements in machines for cheeking hides and skins
IPC: C14B1/16
Filed: 1926-01-28
Abstract: 256,482. Rayner, G. F., (Harding Engineering Co.). Jan. 28, 1926. Fixed-tool machines. -In a machine for cheeking hides, the skin 93 is clamped to a rotatable cylindrical support 55 by a corrugated member 60, and is drawn under spreaders 103 to a fixed knife 91. The clamp member 60, pivoted on a cylinder 55 and connected by a lever 59 to a toggle 63, is held normally inoperation by a spring latch 69, and is freed manually, whereon a spring plunger 73 rotates the bar to clamp the skin. A roller 75 on the toggle extension 62 rides on either side of a fixed cam 75 to lock the clamp. A treadle, operating a one revolution clutch ,for rotating the cylinder, is held by a locking pawl until the clamp is freed by the latch 69. The skin is spread by grooved members 103 held on separate resiliently pivoted arms 99. At the end of the cheeking operation the extension 62 engages a stop and continued movement of the shaft 17 releases the clamp, the hide falling on to a conveyer. The parts are brought to rest by spring buffers.
Patent GB-1064314-A (GB)
Title: Phosphorus-containing derviatives of 6-chromanols
IPC: C07F9/655
Filed: 1964-03-16
Abstract: Novel esterified 5-phosphomethyl derivatives of 6-chromanol having the formula <FORM:1064314/C2/1> wherein R1 is a benzyl or C1- 5 alkyl radical, Y is a C1- 5 alkyl radical, R is -CH3 or -CH2(CH2CH2CH(CH3)CH2)nH where n is an integer from 1-9, and Z is -CH = CH-CH = CH- or two methoxy or methyl groups, are obtained by reacting the corresponding 5-halomethyl chromanol derivatives with silver dibenzyl phosphate, or by esterifying the corresponding 5-phosphomethyl compound with a C1- 5 diazoalkane.  The former process may be carried out in a solvent for the halomethyl compound, e.g. benzene, toluene or acetonitrile, and at reflux temperature. The 5-phosphomethyl compounds used may be obtained by selectively reducing their dibenzyl esters, e.g. with hydrogen in the presence of palladium.
Patent GB-1124615-A (GB)
Title: Esterification process
IPC: C07C69/80
Filed: 1967-01-18
Abstract: The invention relates to a method for preparing a diester of an aromatic dicarboxylic acid, e.g. terephthalic acid comprising contacting a vapour mixture comprising the aromatic dicarboxylic acid and an alcohol, e.g. methyl alcohol with a particulate solid esterification catalyst containing at least 0.2% by weight of an alkali metal compound impregnated therein and recovering the resultant diester from the reaction mixture.  Examples of catalysts which may be used include true oxides of aluminium, titanium, silicon, zirconium and thorium, boron phosphate, aluminium phosphate, and other metal phosphates, and mixtures of such catalysts but alumina and aluminium orthophosphate are preferred.  The catalysts may be impregnated by an aqueous solution of an alkali metal hydroxide, carbonate, halide or phosphate, especially sodium or potassium hydroxide.  Examples are given of the esterification of terephthalic acid with methanol using different specified catalysts impregnated by different alkali metal salts and bases.
Patent GB-1386051-A (GB)
Title: Bus bar
Inventor: JAROSEK G G
IPC: H01R43/20
Filed: 1973-01-18
Abstract: 1386051 Two part couplings LEAR SIEGLER Inc 18 Jan 1973 [31 Jan 1972] 2664/73 Heading H2E A conducting bus strip 30 to interconnect a series of pin pairs 36, 37 is formed with at least one pair of longitudinal slits 31, 32 for each pin pair, the material between the slits being deformed into an S-shape and that on either side 34 and 35 being deformed similarly but in the opposite direction, the insertion of each pin of a pair thus increasing the force on the other. During the original slitting, index marks 43 may be impressed as a guide for subsequent deformation : after deformation the strip may be sized and rolled to remove burrs. If the pins 36, 37 are large in diameter relative to the spacing it is advantageous to deform the strip so that the bends of the S-shapes projecting on one face are deeper than those projecting on the other face. The pin pairs may be on printed circuit board edge connectors on dual-in-line integrated circuits.
Patent GB-1160982-A (GB)
Title: Improvements relating to Plastics Containers and their Manufacture
IPC: B65D23/00
Filed: 1966-08-05
Abstract: 1,160,982. Blow-moulding; closure caps. SYBRON CORP. 5 Aug., 1966 [6 Aug., 1965], No. 2679/69. Divided out of 1,160,981. Heading B5A. [Also in Division B8] In a blow-moulding process, containers having simultaneously formed closure caps are formed by mould halves 58, 58a having compression moulding die portions 59, 59a with dies 60, 60a filling opening over which the caps fit being formed between the mould halves at 34 and blow tube 37. The cap (17, Fig. 4, not shown) is formed connected to container 4 by elongate flexible web 18. The container neck is offset from the longitudinal axis of the container so as to allow the cap to be formed from the same parison width. As shown in Fig. 3, the cap may be stripped from the compression moulding dies 60, 60a by movement of stripping sleeve 64, advanced by fluid supplied through port 74 below portion 68 of the sleeve and retracted by fluid supplied through port 75 above portion 68.
Patent GB-596593-A (GB)
Title: Improvements in wheeled hoes
IPC: A01B33/06
Filed: 1946-02-01
Abstract: 596,593. Wheeled hoes. RICE, G. Feb. 1, 1946, No. 2696/45. [Class 6 (i)] A power- or manually-driven wheeled hoe has one or more flat or domed horizontallyrotating discs each having a continuous peripheral cutting edge and each being fast with a rotary shaft projecting downward from the supporting carriage. In the form shown in Fig. 1, a horizontal rotary disc 22 is fixed on a shaft 23 geared to a motor 19 which is mounted on a platform supported by two horizontal side bars 9. The motor also drives the supporting wheel 14 by means of the belt 16. A depth regulator 27 is shown. The modification in Fig. 4 shows the addition of the tool discs 32 driven by gear-wheels from the motor shaft 18 and slidably mounted in slots 41 so that they are free to move under pressure against the action of the springs 42.
Patent GB-1411336-A (GB)
Title: Method of treating ferrous metal surfaces
IPC: C23C22/83
Filed: 1973-01-19
Abstract: 1411336 Treating ferrous metal surfaces BASF WYANDOTTE CORP 19 Jan 1973 [20 Jan 1972] 2870/73 Heading B2E A method of rendering ferrous metal surfaces corrosion-resistant and imparting to it an olive drab colour comprises: zinc-phosphating the surface; applying to the zinc-phosphated surface a film forming mixture comprising an organic solvent having a maximum flash point of 150F and a calcium soap of a mixture of organic acids, esters and lactones; and removing the solvent to form a film on the surface. Suitable surfaces are those of military equipment and ammunition. The calcium soaps are preferably derived from the oxidation of petroleum. In examples steel shells and steel panels are treated.
Patent GB-1379792-A (GB)
Title: Method of replacing trolley wires
IPC: B60M1/28
Filed: 1972-02-29
Abstract: 1379792 Erecting overhead cables NIPPON KOKUYU TETSUDO 29 Feb 1972 [11 March 1971 (3)] 02922/74 Divided out of 1379791 Heading H2C A trolley wire 16 suspended from a suspension wire 12 over a railway is replaced by disconnecting an end of the first trolley wire from a terminal structure 48, anchoring an end of the new trolley wire to structure 48, winding up the first wire, e.g. on a reel 53 on a carriage and simultaneously paying out the new wire, e.g. from a reel 34 on the carriage, supplying temporary hangers 43 to support the new wire, applying the required tension to the new wire by a tensioning device 38, disconnecting the other end of the first wire from a second terminal structure and anchoring the other end of the new wire from the second structure at the required tension. The carriage disclosed in Specification 1,379,791 is used to carry out the procedure.
Patent GB-847859-A (GB)
Title: Improvements relating to studs for athletic boots and shoes
IPC: A43C15/16
Filed: 1958-01-29
Abstract: 847,859. Studs for athletic footwear. LAWRENCE, W. H. Jan. 29, 1959 [Jan. 29, 1958], No. 2958/58. Class 17(3) A mounting for a stud in an athletic boot comprises a threaded stem 2, to which the stud is to be screwed, with a head 6 which applies pressure to the inner face of the sole component 1, a seating plate 3 of greater diameter than the head disposed between the head and the inner face of the component, a washer 4 forming a flange plate which is slipped over the threaded stem at the outer face of the component, and a nut 5 which is screwed on to the stem at the outerside of the washer. The head 6 is frusto-conical with a flat upper face, and has tapered radial webs 7 to engage in corresponding slots 8 in disc 3. Disc 3 has pressed out tangs 10 to engage the component 1. Washer 4 has a central aperture 11 for threading on the stem 1, and tangs 12 to engage component 1.
Patent GB-704048-A (GB)
Title: Magnetophonic musical instrument
IPC: G10H3/09
Filed: 1952-02-05
Abstract: 704,048. Electrical musical instruments. SCHAEFFER, P. Feb. 5, 1952, No. 2986/52. Class 88 (2). A keyboard instrument suitable for playing "concrete music comprises three magnetic tapes 42 on each of which a single note or noise is recorded. Each of the tapes can be driven at any one of twelve different speeds so that, with the aid of a reproducing head, an amplifier and a loudspeaker, it can provide the twelve semitones of an octave. The three tapes are controlled by the three octaves of the keyboard. The tapes are carried by guide pulleys 22 mounted above a base board 1 and are driven by driving rollers 32 only one 'of which is engaged by a tape when a key 60 is depressed. Each of the tapes 42 is associated with a set of twelve driving rollers 32, the rollers of each set having diameters proportional to the frequencies of the notes of Zarlino's natural scale which is defined. Shafts 9 to 19 each carrying three guide pulleys are arranged at eleven points of a regular dodecagon leaving a space for a recording and reproducing head 37 at the twelfth point. The tapes are also fed past an erasing head 38 individual to the tape and over tensioning pulleys 29 controlled by springs 36. The driving pulleys 32 are arranged on shafts 6 each of which carries, beneath the base board 1, a flywheel 25 and a driving pulley 7. The pulleys 7 are connected to pulleys 8 on the shaft 5 of an electric motor (not shown) by belts 27. The motor is of a kind which by altering the stator circuit can be made to rotate at either of two speeds one of which is double the other. A tape 42 is brought into engagement with a driving roller 32 by means of a coupling roller 58. Three coupling rollers are mounted on the upper ends of the three sections 46, 47, 48 of a triple concentric shaft. Beneath the baseboard 1, the three sections are controlled by plungers 45 of solenoids 52 which in turn are controlled by the keys of the instrument. The keying circuits (not shown) are arranged so that two solenoids cannot operate together to connect two driving rollers to the same tape. An amplifier is associated with each recording head and is blocked for a short period after depression of a key so as to avoid a glissando effect during the acceleration of the tape. The three amplifiers feed a common loudspeaker.
Patent GB-779615-A (GB)
Title: Improvements in or relating to colour photography
Inventor: KELLER ERNST
IPC: G03C7/29
Filed: 1955-02-01
Abstract: Dyestuffs of formula <FORM:0779615/IV(b)/1> wherein n is 0 or 1, X and Y are each a hydrogen atom or a substituent grouping other than a water-solubilizing grouping, and R is a COR1, COOR1 or SO2R1 grouping where R1 is a hydrocarbon residue; a substituted hydrocarbon residue or a hydrocarbon residue containing oxygen atoms linking different hydrocarbon units containing at least 2 carbon atoms, the group R and at least one of the groups X and Y totalling at least 8 carbon atoms and at least one of X, Y and R containing a terminal grouping or halogen substituted hydrocarbon grouping of at least 4 carbon atoms are made by coupling the diazotized phenoxy or benzyloxy aminobenzene compound in an alkaline medium with the appropriate H acid derivative.  Twenty-nine of the dyes are tabulated.  Specifications 397,159, 397,188 and 490,451 [all in Group XX] are referred to.
Patent GB-554087-A (GB)
Title: A new or improved building block
IPC: E04B2/28
Filed: 1942-03-07
Abstract: 554,087. Building blocks for walls &c. READ, C. March 7, 1942, No. 3008. [Classes 20 (iv) and 87 (i)] A building block is T-shape in plan, each arm 10 of the head having a length greater than half the thickness of the stem 11, which is formed with one or more through holes 18 to receive reinforcement rods. Hollow or filled-in walls may be built from such blocks, and the end faces of the blocks, and also, in some cases, the side and under faces and the end face of the stem may be coated with waterproof material.
Patent GB-175879-A (GB)
Title: Improvements in and relating to systems of voltage regulation
IPC: H01F29/10
Filed: 1921-01-24
Abstract: 175,879. British Thomson - Houston Co., Ltd., (General Electric Co.). Jan. 24,. 1921. Transformers.-An electric supply system, comprising an inductive load circuit in parallel with another load circuit, is provided with a transformer having different core losses and windings in the two load circuits, so arranged. that the voltage induced in the secondary winding balances the impedance drop in the supply line irrespective of the power factor and magnitude of the current flowing in the inductive load circuit. The primary winding P is connected in series with a variable inductive load M, and the oppositely wound secondary winding S is connected in series with the lamp load L, and the windings P, S, are mounted on the core 11 of a shell transformer 10. The main body of the transformer is made up of ordinary stampings, while a plurality of adjustable members 14 are adapted to vary the length of the air-gap. One or more of the members 14 are arranged to give high core losses, and each may be made of solid cold rolled steel or may be made of any magnetic material and provided with a short-circuited turn of conducting material, while the other members are made up of ordinary stampings. By adjusting the air gaps between the members 14 and the leg 11 the core loss of the transformer can be so arranged that the load current in the winding P has a power component in the transformer of such a value, that, at all loads and power factors, the voltage induced in the winding S is equal in magnitude and opposite in phase to the impedance drop in the system caused by the inductive load M.