baber/WOPTO huggingface dataset:
Patent GB-817708-A (GB)
Title: Devices for cleaning the walls of boreholes
IPC: E21B37/02
Filed: 1956-12-05
Abstract: 817,708. Borehole scrapers. ATKINSON, A. E. Nov. 6, 1957 [Dec. 5, 1956], No. 37203/56. Class 85 A borehole scraper as described in Specification 668,350 is provided with spring fingers each comprising a resilient multiple wire core 8 within a sheath 9 formed by helically winding resilient wire with adjacent turns in contact and then bending the fingers to the desired shape for mounting. The fingers may be formed in pairs by bending the sheathed core to a U-shape, Fig. 1, having limbs 1, 2 connected by a curved web 3 which is attached to a carrier (not shown) e.g. by a cleat. The fingers 1, 2 are then bent to the required shape at 4 and 5, Fig. 2. The core may be made from tempered spring steel wire or steel piano wire and the sheath wire is preferably, of larger gauge. The core may protrude from the sheath, which may be discontinuous between the bends 4, 5. Two or three turns of the sheath wire may be deformed to an oval section at the bends to prevent the sheath being dislodged. Specification 729,628 also is referred to.
Patent GB-1271960-A (GB)
Title: Improvements in or relating to temperature compensation in measuring instruments
Inventor: HARRIS STEPHEN CHARLES
IPC: G01L7/06
Filed: 1969-07-24
Abstract: 1,271,960. Pressure gauges. WARD BROOKE & CO. Ltd. Oct. 9, 1970 [July 24, 1969], No. 37288/69. Heading G1L. In a measuring instrument ambient temperature variation compensation device a bell-crank 8 is connected at 9 to a first bellows connected via a capillary tube 3 to a temperature sensing bulb 1 and at 10 to a second bellows 4, connected to a sealed capillary tube 5, and at 12 to a pivot operating arm 14 and the arrangement is such that expansion or contraction of bellows 2 or 4 due to temperature changes will cause the pivot 12 to move the arm 14 horizontally away or towards the pointer 16 or merely move the pivot 12 vertically.
Patent GB-1303459-A (GB)
IPC: G01G19/22
Filed: 1970-08-03
Abstract: 1303459 Batch weighing OWENS-CORNING FIBERGLAS CORP 3 Aug 1970 [8 Sept 1969] 37400/70 Headings G3 R7R R9H and R1B Apparatus for producing successive batches of a mixture of constituents includes means for modifying the amount of a constituent introduced in accordance with the deviation from a desired quantity of the constituent in the immediately preceding batch. As described a batch controller (23), Fig.1 (not shown) first closes switch 36 to energize a relay 50 and a comparator (20) closes switch 33 to energize relay 53 so that the first constituent is fed at a fast rate (by utilizing fast motor 35) to a weighing hopper (11). The weight signal is converted to binary coded decimal form and when it reaches a lower pre-set level relay 53 is de-energized so that the feedrate continues at a slower rate. When the weight reaches a higher pre-set level switch 35 is operated to energize relay 57 to de-energize relay 52 and so stop the drive to the motors. The actual weight in the hopper is then compared with the required level and any error results in an error weight and a new dribble weight estimate being used for the same constituent in the next batch. The actual weight is used as the scale tare for determining the high pre-set value for the next constituent. Switch 37 is then closed to complete the operation for the second ingredient. A weighed batch may be mixed in a mixing hopper 30 whilst the next batch is being weighed. A printer 32 may be used to print out deviations from the required weight.
Patent GB-774557-A (GB)
Title: Improvements in or relating to bird baths and like receptacles for attachment to bird cages
IPC: A01K45/00
Filed: 1954-12-28
Abstract: 774,557. Cages for birds. HYGIENIC WIRE WORKS, Ltd., MENTMORE MANUFACTURING CO., Ltd., and MARSHALL, P. Dec. 15, 1955 [Dec. 28, 1954], No. 37481/54. Class 5(2). A synthetic resin bird bath or like receptacle for attachment to a bird cage comprises a container A with a detachable cover B which has hooks B1 for attachment to the cage so that an opening in the side of the receptacle coincides with an opening in the side of the cage. The cover B has slots B3 in its top and has a skirt B4 and tongues B5 at its edge for fitting over the edge of the container A which has projections A3 for location in slots B6 in the cover skirt when the container sides and skirt are sprung inwardly and outwardly respectively. The container A is transparent and has a non- skid roughened floor A4. A projection A5 at the bottom edge of the receptacle opening contacts the cage so as to keep the receptacle vertical.
Patent GB-910484-A (GB)
Title: Production of carboxylic acids
IPC: C07C51/265
Filed: 1958-11-21
Abstract: Liquid catalyst compositions comprising the combination product of a heavy metal oxidation catalyst, in which the metal is in the form of a salt, metallate, oxide, hydroxide or hydrated from thereof, and aqueous hydrobromic acid are described.  They are used in the liquid phase oxidation of organic compounds to carboxylic acids (see Group IV(b)).  The metal is preferably vanadium, chromium, manganese, iron, cobalt or nickel but molybdenum, palladium, tungsten, neodymium, cerium, copper, nitheniam, osmium and rhodium are also mentioned.  In examples: (1) catalysts are prepared by mixing 48% aqueous hydrobromic acid and nickel acetate, chromic acetate, ferrous bromide or cerium oxide; (2) neodymium ammonium nitrate and aqueous hydrobromic acid are reacted together generating bromine, most of which remains in the solution obtained as product.ALSO:An aromatic or heterocyclic organic compound having one or more aliphatic nuclear substitutents is oxidised to form a carboxylic acid by treatment in liquid phase with molecular oxygen in the presence of a liquid catalyst composition comprising the combination product of a heavy metal oxidation catalyst, in which the metal is in the form of a salt, metallate, oxide, hydroxide or hydrated form thereof, and aqueous hydrobromic acid. In general such a catalyst composition is soluble in the reaction mixture under the conditions of oxidation. The molar ratio of hydrobromic acid to heavy metal may be in the range of 1/5 to 5/1.  The heavy metal is preferably vanadium, chromium, manganese, iron, cobalt, or nickel.  Other metals mentioned are molybdenum, palladium, tungsten, neodymium, cerium, copper, ruthenium, osmium, and rhodium.  Chlorides, chlorates, bromides, acetates, benzoates, nitrates, and other salts of the metals may be used, as well as metallates such as chromates and molybdates. Oxygen, ozone, or air may be used and the oxidation may take place at 60 DEG -275 DEG C.  The reaction may be carried out in the presence of an inert liquid reaction medium such as acetic acid.  Examples describe the production of terephthalic acid from p-xylene using as catalyst a liquid preparation formed by mixing nickel acetate chromic acetate, ferrous bromide, cerium oxide, or neodymium ammonium nitrate with a 48% aqueous hydrobromic acid solution. The application of the process to the oxidation of other starting materials and the production of other carboxylic acids is referred to e.g. the oxidation of toluene, durene, mesitylene, diisopropyl benzenes, and p-cymene to the corresponding mono or poly-carboxylic acids; acenaphthene to naphthalic acid; methyl naphthalene to naphthoic acid; ditolyl ethane to iso- and tere-phthalic acids; acetophenone to benzoic acid; p-toluene sulphonic acid to p-sulphobenzoic acid; p-nitrotoluene to p-nitrobenzoic acid; chloro-p-xylene to chloroterephthalic acid; hydroxy-methyl-pyridines and picolines to nicotinic and isonicotinic acids.
Patent GB-998202-A (GB)
Title: Improvements in or relating to transfer-paper mechanisms for typewriters
Inventor: NAGY ISTVAN
IPC: B41J3/24
Filed: 1961-10-19
Abstract: 998,202. Carbon and like transfer-paper mechanisms. IRODAGEPIPARI ES FINOMMECHANIKAI VALLALAT. Oct. 19, 1961, No. 37578/61. Heading B6F. A transfer-paper mechanism for use with a paper based typewriter ribbon 26, which is advanced at each displacement of the platen 25, Fig. 5, by a distance corresponding to the width of a character typed, comprises an auxiliary spool 16, 17 having a hub 16a, Fig. 3, mounted on a spindle 13, which is provided with a transverse bore in which are disposed a spring 18 and balls 19 forming a friction clutch to connect the spindle 13 to the hub 16a to permit relative rotation between said spindle and the auxiliary spool. Paper-ribbon feeding and guiding.-The paperribbon 26, Fig. 5, is fed from a supply spool 27 via a ribbon fork 29 between the platen 25 and type guide 30 past a guide roller by ribbon feed mechanism comprising feed rollers 32 and 33 the former being releasably coupled to the escapement movement of the carriage 34. The other roller 33 is mounted on a lever 35 pivotally mounted on a pin 36, whereby the roller 33 can be disengaged from the feed roller 32 to facilitate threading and winding of a new ribbon. The paper ribbon advanced by the feed rollers is guided via a guide surface 37 towards the auxiliary spool 16, 17 serving as a wind-up spool. Spools winding-arrangements.-The auxiliary spool 16, 17 is mounted on the spindle 13, Fig. 3, via the friction clutch, said spindle being driven at a constant angular displacement by a ratchet wheel 10 fast on the spindle. The ratchet wheel 10 co-operates with a pawl 9 articulated to a bell-crank lever 7 which is rocked by a stirrup member 1 pivoting in the direction of arrow 4 on successive depressions of keys 21, Fig. 5. Spools.-The auxiliary spool comprises a first disc 16, Fig. 3, having a first hub 16 mounted on the spindle 13 and retained against displacement by a screw 20 and a second disc 17 having a second hub 17a resiliently urged on to the hub 16a. The hub 17a is provided with longitudinal slots 17b (Fig. 2, not shown), and a slit 17c the latter serving for ribbon connection. The disc 17 may be provided with a knob 40, Fig. 5, to facilitate removal or rotation of the auxiliary spool, which may be disposed within a recess 38 of the cover 34 or outside or within a recess of a side wall 11.
Patent GB-896979-A (GB)
Title: Indexing mechanism for a machine tool
IPC: B23Q16/04
Filed: 1960-11-02
Abstract: 896,979. Indexable machine tables. CINCINNATI MILLING MACHINE CO. Nov. 2, 1960 [Jan. 26, 1960], No. 37642/60. Class 83 (3). A machine-tool indexing mechanism comprises a base 10, Fig. 2, keyed to the machine bed 12, a table 19 rotatable on the base about an axis A, on which workpieces may be clamped and plungers 30, 31, Figs. 1 and 6, slidable in bushes 32 in the base 10 and movable in unison to engage equally spaced pairs of holes 33, 34, or 34, 35, or 35, 36, or 36, 33, Fig. 1, in the table, to locate the latter in its indexed positions. A shaft 40, Fig. 6, journalled in the base carries pinions 47 which engage racks 49, 50, on the plungers, so that when the table is indexed, handle 45 on the shaft Fig. 1, is rotated to slide the plungers into a pair of holes to locate the table. To facilitate rotation of the table, the latter is lifted by an adjustable wedge 61, Fig. 2, carried by a rack 55 actuated by a further pinion 58 on shaft 40. A sleeve 17 secured to the base slidably carries a member 62 in which a roller 64 is mounted by a pin 65, and between member 62 and a projection 22 on the table is mounted a thrust bearing 66. As shaft 40 is rotated counter-clockwise as seen in Fig. 2, plungers 30, 31 will be retracted from the table, and rack 55 will move to the right. Wedge 61 will engage roller 64, thus forcing member 62 upwardly to lift table 19 from the base ready for the table to be indexed. Shaft 40 is then reversed to lower the table and to move the plungers into engagement with the next pair of holes in the table. In each indexed position the table is clamped by four simultaneouslyoperated clamps 70, Figs. 1 and 3, mounted on the base, which engage a circular flange 24 on the table. Each clamp has a pin 71, Fig. 3, secured to the base, a clamping arm 73 pivoted to the pin at 74, and a heel-pin 75 axially movable to clamp the table, by a closed circuit pressure transmitting system. The system comprises passages 77, 77a, 77b, Fig. 1, filled with grease or gelatin-like plastic material, plugged at 85, and a piston 81 carried in a cylinder 79, is actuated by a screw 82<SP>1</SP>, the pressure is increased and heel-pins 75 are moved axially to operate clamps 70.
Patent GB-1164563-A (GB)
Title: Indole Derivatives
Inventor: CHEMERDA JOHN MARTIN
IPC: C07D209/28
Filed: 1967-08-16
Abstract: 1,164,563. Indole derivatives. MERCK & CO. Inc. 16 Aug., 1967 [25 Aug., 1966], No. 37643/67. Heading C2C. 1 - p - Chlorobenzoyl - 2 - methyl - 5 - methoxy - 3 - indolylacetic acid is prepared by treatment of 1-p-chlorobenzoyl-2-methyl-3-(2<SP>1</SP>-nitroethane)-5-methoxy-indole with a strong acid. Novel 1-p-chlorobenzoyl-2-methyl-3-(2<SP>1</SP>-nitroethane)-5-methoxyindole is prepared by reaction of p-methoxyphenylhydrazine hydrochloride and 5-nitro-pentan-2-one and treatment of the resulting N-unsubstituted indole derivative with p-chlorobenzoyl chloride and sodium hydride.
Patent GB-1409147-A (GB)
Title: Manikin construction and process for manufacture thereof
IPC: A41H5/00
Filed: 1973-08-09
Abstract: 1409147 Dummy figures WOLF & VINE Inc 9 Aug 1973 37714/73 Heading G5G The head 13 of a manikin is fixed to the torso 15 along a joinder line 44 of non-circular compound curvature, the arrangement being such that heads of the same general configuration can be mounted in different angular positions on torsos with headless necks in different angular attitudes and with different external configurations, whereby a manufacturer can maintain an inventory of several heads and several torsos which can be readily assembled in any desired combination.
Patent GB-1421235-A (GB)
Title: Transistor modulator and gain control circuits
IPC: G06G7/163
Filed: 1973-08-09
Abstract: 1421235 Transistor modulator circuits; gain control SONY CORP 9 Aug 1973 [11 Aug 1972] 37808/73 Headings H3T H4L and H4R The invention relates to a circuit comprising first and second transistors V1, V2 respectively, Fig. 1, of first conductivity type with their collectors connected together and via a load impedance 13 to a power supply point 14, and third and fourth transistors V3, V4 respectively, of opposite conductivity type to the first pair and with their collectors connected to a second power supply point, i.e. earth, the emitters of the first and third transistors V1, V3 respectively being connected together and also the emitters of the second and fourth transistors V2, V4 respectively. Such an arrangement may be used as a modulator, the modulating signal (S1, Fig. 2A, not shown) being applied from source 19 to the bases of transistors V1, V2 in push-pull and the carrier signal (S2, Fig. 2B, not shown) to the bases of transistors V3, V4 in push-pull from source 21: the arrangement suffers, however, from the defect that the transistors have an exponential response characteristic. According to the invention, signal voltage to current converter circuits having a logarithmic characteristic are coupled between the signal sources 19, 21 and transistors V1, V2 and V3, V4 respectively, so as to linearize the overall response. In an embodiment the first converter circuit comprises a pair of transistors 24, 25, Fig. 3, connected as an emitter-coupled pair with current source 26 as common emitter impedance and with diode-connected transistors 34, 39 and 35, 40 respectively as collector loads. The second converter circuit is similar, comprising transistors 28, 29 with current source 32 as common emitter impedance and diodeconnected transistors 36, 41 and 37, 42 as collector loads. Collector potentials are derived from a potentiometer comprising resistors 47, 48 and diode-connected transistors V5, V6. Instead of the signal source 21 a variable D.C. bias may be applied to transistor 29, the arrangement then constituting a gain control circuit (Fig. 4, not shown).
Patent GB-1173432-A (GB)
Title: Production of Propylenureas
Inventor: PETERSEN HARRO
Filed: 1966-08-24
Abstract: 1,173,432. Propylenureas. BADISCHE ANALIN- & SODA-FABRIK A.G. 24 Aug., 1966 [25 Aug., 1965; 27 Aug., 1965], No. 37871/66. Heading C2C. Propylenureas having the general formula wherein the radicals R<SP>1</SP> to R<SP>7</SP> denote hydrogen atoms or identical or different linear or branched alkyl groups, are produced by reduction of a 2-oxohexahydropyrimidine having the general formula wherein R<SP>8</SP> denotes a hydrogen atom or an alkyl group, at a temperature from 0‹ to 200‹ C. with formic acid, or with hydrogen in the presence of a metal or metals having an atomic number of from 24 to 29 or copper chromite and a solvent. 2-Oxohexahydropyrimidine derivatives of the second general formula above are prepared by condensation of urea derivatives with suitable aldehydes, optionally in the presence of formaldehyde.
Patent GB-893840-A (GB)
Title: Method of and apparatus for moulding multiple plastic scoops on to stringer tapes of separable fasteners
IPC: B29C45/14
Filed: 1958-11-26
Abstract: 893,840. Injection moulding separable fasteners. PLASCO Ltd. Nov. 26, 1958 [March 12, 1958], No. 38084/58. Class 87(2). In apparatus for moulding fastener elements 64 on to a tape 54 of a separable fastener, wherein plastic material is injected simultaneously into a number of cavities 53 in a pair of relatively movable dies 52, the tape is intermittently fed forwardly a predetermined amount between the opened dies, and means are provided for limiting the tape feed at intervals in accordance with the number of elements in each tape length. As shown in Fig. 1, an adjustable stop plate 59 pivoted at 58 is automatically and periodically moved into and out of the path of tape-feeding grippers 56. Injection is effected by a plunger 34 in a cylinder 29 having a nozzle 47 for each cavity 53. The plunger 34 is operated by a fluid pressure piston 35 and cylinder 21. An extension 37 of plunger 34 moves an apertured slides 25 against the action of a spring 42 to feed material from a hopper 23 to a discharge shoot 28 and inlet aperture 30 in cylinder 29. The cylinders 21, 29 and hopper 23 form part of a frame unit 14 pivoted on a shaft 13. The unit 14 is moved longitudinally on the shaft 13 to bring the nozzles into injecting position by means of a fluid pressure cylinder 16 acting against a spring 20. A cam 31 and roller 33 (see Fig. 4 not shown), control pivoting of the unit 14 about the shaft 13 after injection, to break the sprues.
Patent GB-1494039-A (GB)
Title: Process for removing residual mercaptan from high nitrile polymers
IPC: C08F20/42
Filed: 1975-09-17
Abstract: 1494039 Neutralizing mercaptans STANDARD OIL CO 17 Sept 1975 [20 Sept 1974] 38185/75 Headings C3G and C3P Residual mercaptan in a polymer latex of nitrile-containing polymer also containing unreacted nitrile monomer is rendered innocuous by adjusting the pH to 7À5 to 11À5 and maintaining at 15-75 C. for 1 minute-4 hours. The mercaptan and monomer are said to interact. Polymers, copolymers and graft polymers with diene rubber of an acrylonitrile are disclosed. The pH is adjusted by addition of a hydroxide of a metal, particularly alkali metal.
Patent GB-1060330-A (GB)
Title: Process for the production of cross-linkable compositions
IPC: C08J3/20
Filed: 1965-09-07
Abstract: Cross-linkable compositions are prepared by admixing an olefin polymer and an inorganic filler in a high-speed mixer in a manner such that the sintering point of the olefin polymer is reached as a result of frictional forces during mixing, cooling the resulting mixture and incorporating therein a cross-linking agent, whereby said filler and cross-linking agent are uniformly distributed in the polyolefin.  Specified olefin polymers are polyethylene, polypropylene, polybutylene and ethylene/propylene, ethylene/butylene and ethylene/vinyl acetate copolymers. Specified fillers are carbon black, graphite, silicates, carbonates, phosphates and metal powders; and intensifiers, plasticisers, lubricants, pigments, dyestuffs, antioxidants, ultra-violet absorbers, activators and accelerators may also be incorporated in the sintering step.  Specified cross-linking agents are dicumyl, di-t.-butyl and di-t.-amyl peroxides and 2,5-dimethyl-2,5-di-(t.-butylperoxy) hexane.  The agent may be added in a volatile solvent, e.g. ether, acetone or alcohol.  The compositions may be formed into tubes and shaped elements, and used for cable sheathing.  In examples compositions are prepared from polyethylene and carbon black, with the addition of (1 and 4) dicumyl peroxide, (2) di-t.-butyl peroxide, and (3) di-t.-amyl peroxide.
Patent GB-1458459-A (GB)
Title: Motors or pumps
IPC: F01C9/00
Filed: 1974-09-04
Abstract: 1458459 Rotary positive-displacement fluidmachines BALCKE-DURR AG 4 Sept 1974 38593/74 Heading F1F A motor, or self-priming pump, comprises a spherical chamber 1, Fig. 1, with frusto-conical inserts 2, 3 and an axial bore 7 which supports a shaft 10, Fig. 3 on which is fixed a spherical member 11. The latter supports a disc-shaped piston 13  in a groove 12 which is inclined to the axis at an angle other than 90 degrees. The piston 13, Fig. 4, has a groove 17 in a cylindrical member 14 and in operation the groove 17 engages a fixed plate 6, Fig. 1, which projects into the chamber 1. When the shaft 10 is rotated, the piston is prevented from rotating by the plate 6 but it oscillates about the shaft 10. Thus, with suitable posting the machine acts as a pump. By supplying pressure fluid it can be driven in either direction as a motor.
Patent GB-1156542-A (GB)
Title: Car Dump Assemblies
Inventor: KERSEY FRANK N
IPC: E21F13/02
Filed: 1966-08-30
Abstract: 1,156,542. Tipping vehicles. " AUTOMATIC " SPRINKLER CORP. OF AMERICA. 30 Aug., 1966, No. 38619. Heading B7B. A trailer such as a mine car is unloaded by running it down an incline 7 to discharge the load on to the conveyer 10. The tow-bar 2 is housed in the underside of a raised channel member in the trailer floor and the body is supported on wheel mounting plates 18 rigidy connected to a torsion bar 19. During unloading when the leading wheels descend the incline, the torque rods exert a force on the trailer body to help dislodge the load, resilient stops 10a providing a further force. The inclined part 7 may also be provided with corrugations to impart a vertical motion to the load to facilitate discharge.
Patent GB-1048850-A (GB)
Title: Ion exchange apparatus
IPC: B01J47/04
Filed: 1964-09-22
Abstract: 1,048,850. Ion-exchange. K. T. GRUBB AND B. GRUBB, [trading as H. STRUERS CHEMISKE LABORATORIUM], Sept. 22, 1964 [Sept. 24, 1963], No. 38627/64. Heading B1J. An ion exchanger 1 has crude water inlet 13 for distribution over the mixed bed and demineralised water outlet 33. During regeneration crude water is introduced in the opposite direction via pipe 18 (not shown) to separate the mixed exchangers into two layers 11 and 12. Then the flow is stopped and liquid sucked out by auxiliary distributed 14 air being introduced by valve A1. Regenerants and rinsing liquids are admitted via distributors 13 and 33 and liquid removed via outlet 15. The stratified ion-exchangers are loosed by crude water from 33 to 13 followed by evacuation by pump through distributor 14. Air for mixing is then admitted through distributor 14 leaving via outlets 33 and 13. The regenerated exchanger may be tested against a standard column by means of conductivity measurements.