baber/WOPTO huggingface dataset:
Patent GB-1095978-A (GB)
Title: Improvements in temperature-responsive elements
Inventor: SLATTER JOHN REGINALD
IPC: G01K5/44
Filed: 1965-10-25
Abstract: 1,095,978. Temperature responsive actuating elements. BRITISH THERMOSTAT CO. Ltd. Oct. 4, 1966 [Oct. 25, 1965; Jan. 26, 1966], Nos. 45049/65 and 3473/66. Heading G1D. In a temperature responsive of the kind in which expansion of a material such as wax in a closed chamber bounded by a plate 2 is transmitted to a piston by way of a resilient sleeve member 1, the plate 2 is recessed to receive and locate a washer 4 of e. g. polytetrafluoroethylene therein, the plate 2 being directly bonded to the member 1. The plate 2 is preferably a dished ring of metal which provides the recess for the washer 4. The washer may be etched on both sides and bonded by an epoxy resin to the plate and the member 1. Alternatively the plate 2 may be peened over to retain the washer or the washer and plate may be provided with co-operating screw threads. The polytetrafluoroethylene washer 4 may include glass fibre and molybdenum disulphide.
Patent GB-961798-A (GB)
Title: Improvements in or relating to the manufacture of plastics bags
IPC: B31B1/90
Filed: 1962-11-28
Abstract: 961,798. Making bags with tear strips. TRANSPARENT PACKAGING Ltd. Nov. 28, 1962 [Dec. 5, 1961], No. 45071/62. Heading B5D. [Also in Divisions B8, F2 and H5] A plastics tear strip is heat sealed to a seamless plastics tube by co-operation of a sealing head 50 (Fig. 2) and a floating anvil 6 within the tube. In the form shown, the tear strip is fed across the tubing by a shuttle arm 10 and is then clamped in position by a gripper 42 and severed by a cutter 64. Rollers 7, which may be mounted on ball-bearings, on the anvil 6 cooperate with rollers 5 outside the plastics tube to hold the anvil in position. A sealing pad 9 of silicone rubber is provided on the anvil 6 which may be made of aluminium. The head 50 is lowered under the control of a relay which is slugged to hold the head in welding position for sufficient sealing time. The shuttle arm 10 is moved by a rack 11 driven by a gear 12 and is returned by a spring. The size of the anvil 6 and head 50, and position of the clamping device 42 may be altered to suit different sizes of bag. The apparatus may be associated with known plastics bag forming machines such as in Fig. 9 in which the tubing is fed from a roll 73, has the tear strip 31 attached as previously described and the tubing is subsequently sealed at intervals by the head 75 and cut into bags by the guillotine 76.
Patent GB-1494473-A (GB)
Title: Outlet pieces for hydrants
IPC: F16L47/26
Filed: 1974-12-20
Abstract: 1494473 Junction pieces AMBERHOLT Ltd 20 Dec 1974 [26 Sept 1973] 45151/73 Heading F2G An outlet piece for a hydrant comprises a short length of tube 10 with an external screwthread and with an outwardly directed attachment flange 11 at one end, the outlet piece being made from a plastics material moulded around a metallic stiffener 18 extending inside both the wall of the tube 10 and the flange 11. The substantially tubular stiffener 18 is coaxial with the tube 10 and may be pressed or stamped from stainless steel sheet being imperforate apart from bolt holes 16 or may alternatively be made from mild or stainless steel mesh such that the plastics material, e.g. nylon or polypropylene, which may include fibrous reinforcement, may extend through the apertures therein, there being a substantially constant depth of plastics coating the stiffener 18 in both cases. A plated steel ring 22 may be placed over the outer part 13 of the flange 11 so that the tightened connection bolts bear thereon thus protecting and further stiffening the flange 11.
Patent GB-1492628-A (GB)
Title: Apparatus for surveying railway track
IPC: G01C5/00
Filed: 1975-10-31
Abstract: 1492628 Surveying railway track: railway track gauges FRANZ PLASSER BAHNBAUMASCHINEN-INDUSTRIEGESELLSCHAFT m.b.H. 31 Oct 1975 [9 Dec 1974] 45369/75 Headings G1F and G1M Apparatus for surveying railway track, Figs. 1, 2, comprises two T shaped trolleys 2, 3 identically constructed and having between them a theodolite 4, a target 5, cross staves 7, 8, Fig. 3, for measuring track alignment and track level, a cross level device 9 comprising a spirit level 10 vertically adjustable by a micrometer screw 11 with a scale, track gauge scale means 12 and means 21 which measures the distance travelled by the trolleys. The roller 13 is telescopically adjustable, and the height adjustable base-plate 16 supporting the cross 5 or the theodolite is levelled by spirit levels at right angles to one another and by screws 18, 19. In operation the trolley 3 is positioned 80-100 metres along the track from the trolley 2 and the line 6 obtained by aligning 4 with the sighting cross 5. The cross level and track gauge are then obtained from devices 9, 12. The trolley 3 is then moved towards the trolley 2 and other measurements obtained and recorded, the track level being ascertained from the stave 8 and the lateral deviation from the stave 7.
Patent GB-998352-A (GB)
Title: Amines and the corresponding cyclic ureas thereof
IPC: C07D213/40
Filed: 1961-12-19
Abstract: Compounds of the formula <FORM:0998352/C2/1> <FORM:0998352/C2/2> where R is hydrogen or an unsubstituted or substituted alkyl, aryl, aralkyl, alkaryl, cycloalkyl, alkenyl, aralkenyl or heterocyclic radical and n is 1-10, at least one of the unspecified valencies being other than hydrogen, are obtained by saponification of the bis-urethanes claimed in Specification 998,351.  Compounds of the formulae <FORM:0998352/C2/3> <FORM:0998352/C2/4> where each R is aryl or heterocyclic, and also each compound of the first two formulae above which are specified, are claimed as novel.  In examples (1), (2) benzaldehyde and carbamic acid ethyl ester are condensed together and the products reacted with styrene to give 1,3-diphenylpropane - 1,3 - bis - carbamic acid ethyl ester, which is hydrolysed to 1,3-diphenyl-1,3-diaminopropane and 4,6-diphenyl-2-oxohexahydropyrimidine. Similar reactions produce (3), (4) 1-phenyl-1,3-diaminopropane and 4-phenyl - 2 - oxohexahydropyrimidine: (5), (6) 1-phenyl - 3 - p - tolyl - 1,3 - diaminopropane and 4 - phenyl - 6 - p - tolyl - 2 - oxohexahydropyrimidine; (7), (8) 1-phenyl-3-(21, 61-dichlorophenyl) - 1,3 - diaminopropane dihydrochloride and 4 - phenyl - 6 - (21, 61 - dichlorophenyl) - 2 - oxohexahydropyrimidine; (9) 1 - heptyl - 3 -phenyl - 1,3 - diaminopropane; (10) 1 - phenyl - 3 - p - chlorophenyl - 1,3 - diaminopropane dihydrochloride and 4-phenyl-6-(41-chlorophenyl)-2-oxohexahydropyrimidine; (11) a diamine product as in (1) but with an average of 3.8 styrene units (in place of 1); (12) 1-phenyl-3-p-diethylaminopheny - 1,3 - diaminopropane hydrochloride; (13) 1 - phenyl - 3 - p - dimethylaminophenyl - 1,3 - diaminopropane trihydrochloride; (14) 1 - phenyl - 3 - (41 - sulphophenyl) - 1,3 - diaminopropane dihydrochloride; (15) 1 - phenyl - 3 - (41 - aminophenyl) - 1,3 - diaminopropane trihydrochloride (by hydrolysis of the corresponding 1,3-dicarbamate, obtained by reduction of the p-nitro-compound); (16) 1 - phenyl - 3 - p - anisyl - 1,3 - diaminopropane hydrochloride; (17) 1-phenyl-3-pyridyl - 1,3 - diaminopropane; and (18) 1-phenyl-3 - thienyl - 1,3 - diaminopropane. In each case the starting materials are made as in Specification 998,351 from an aldehyde, a carbamic acid ester and styrene (as representative of olefines). Suitable aldehydes, esters and olefines are listed.  1,3 - Diphenylpropane - 1,3 - diisocyanate is prepared from 1,3-diphenyl-1,3-diaminopropane and phosgene.  Salts of the amines may be obtained, e.g. with HCl, H2SO4, HClO3 or picric acid; these may be used for purification of the amines, and also as emulsifiers or dispersing agents.  1,3-Diphenyl-1,3-diaminopropane can be used as a preservative for glue, spinning preparations and emulsifiers.ALSO:1,3-Diphenyl-1,3-diaminopropane (see Division C2) can be used as a technical preservative with glue.  Specification 998,351 is referred to.
Patent GB-1442920-A (GB)
Title: Process for the manufacutre of 6-d- - x-aminophenylacetamido- pencillanic acid
IPC: C07D499/68
Filed: 1974-10-22
Abstract: 1442920 Penicillin compound KRKA TOVARNA FAMACEVTSKIH IN KEMICNIH IZDELKOV 22 Oct 1974 [26 Oct 1973] 45696/74 Heading C2C 6 - [D(-) - α - aminophenylacetamido - 3- penicillanic acid is prepared by (a) condensing 6 - aminopenicillanic acid with a substituted D-phenylglycine of the formula where R 1  is 2-(1-carbalkoxy)-propenyl, 2-(1- alkylcarbonyl) - propenyl or hydrogen, R 2  is oxycarbethoxy, oxyacyl, cyanomethylene, p - nitrophenyl, 2,4,5 - trichlorophenyl or halogen, or R 1  and R 2  taken together are oxycarbonyl, (b) extracting with a chlorinated hydrocarbon of 1-2 carbon atoms and 1-3 chlorine atoms and (c) treating with a primary or secondary aliphatic alcohol or 1-4 carbon atoms.
Patent GB-459166-A (GB)
Abstract: 459,166. Weighing-apparatus; indicating apparatus. JANEMIAN, J. A., 63, Rue de Romainville, Paris. July 3, 1935, No. 19029. Convention date, July 4, 1934. [Class 143] [See also Group XIX] In a weighing or other precision measuring apparatus wherein a rotary shaft (for example the indicating shaft) is actuated by flexible ribbons coiling on the shaft in opposite directions, two of the ribbons A, C, connected at one end to the actuating member or drum 11, and to the shaft 6 respectively, are connected at their other ends to a flexible bow 10, and a third ribbon B connects the actuating member and the shaft. As shown in connection with a weighing balance, the beam 1 actuates a pendulum 4 by means of a flexible ribbon 19 and cam 5. The drum 11, rigid with the pendulum has attached thereto the oppositely-directed flexible ribbons A, B, connected respectively to the upper end of the flexible bow 10 and to the indicating shaft 6. Two further flexible ribbons C connect the indicating shaft to the lower end of the bow. The straight portions of the ribbons A, B, C lie in the same plane, and the tensions of the ribbons are balanced by the bow without producing reaction on the indicating shaft. The bow carries pivoted equalizer bars 17, 18 to the ends of which the ribbons are pivotally connected. The other ends of the ribbons are also pivoted. The indicator shaft is mounted on ball bearings, the balls being of two diameters, alternating as shown in Fig. 7, so that the smaller balls roll only in contact with the larger balls.
Patent GB-1273225-A (GB)
Title: Improvements in and apparatus for the production of polyamide moldings
IPC: B29B13/02
Filed: 1969-09-18
Abstract: 1,273,225. Moulding polyamides. BADISCHE ANILIN- & SODA-FABRIK A.G. 18 Sept., 1969 [19 Sept., 1968], No. 45982/69. Heading B5A. Polyamide mouldings are produced by anionic polymerisation of a lactam in a mould by heating a lactam melt containing activator and a lactam melt containing catalyst separately to polymerization temperature and supplying the two melts to a mould beneath the surface of the polymerization mixture, the melts being suppled to the mould through separate heated pipes each completely filled with melt. The melts are preferably introduced into the mould at a velocity between 20 and 200 cm./sec. through substantially horizontal jets which intersect at an angle between 60 and 120 degrees. The lactam used is preferably caprolactam and the feed pipes are raised or the mould lowered as the mould is filled. The lower end of the feed pipes preferably comprises a spring loaded ball valve which keeps the pipe full of melt and prevents ingress of the polymerizing melt.
Patent GB-1013599-A (GB)
IPC: H01T21/00
Filed: 1964-11-11
Abstract: 1,013,599. Removing cuttings. BROWN, BOVERI & CIE A.G. Nov. 11, 1964 [Nov. 23, 1963], No. 45997/64. Headings B3B, B3K and B3T. A method for the periodic removal of swarf in turning, milling and similar operations comprises producing brief powerful electric current pulses which result in a pressure wave acting directly on the swarf to remove it as it leaves the workpiece. The pressure wave may be produced by striking an arc across a spark gap 4 or by vaporizing a wire. To direct the pressure wave a reflector may be incorporated which is formed by a recess 10 in a carrier 9, the electrodes 11 and 12 constituting the spark gap. One of the electrodes may be formed by the swarf itself. In the case of wire vaporization the wire is automatically fed into the reflector after each discharge. Another embodiment incorporates the use of a coil which when subjected to a current produces an electromagnetic force which in turn produces a repulsion force in the swarf and so removes it. Electrical circuits for creating current pulses are described.
Patent GB-1433937-A (GB)
Title: Vehicle braking apparatus
IPC: B60T17/08
Filed: 1973-10-02
Abstract: 1433937 Brake actuators INDIAN HEAD Inc 2 Oct 1973 46058/73 Addition to 956195 Heading F2F An improvement in or modification of the brake actuator of Specification 956,195 comprises an expansible pressure chamber with a movable wall or piston 4, a push rod 5 adjustably coupled to the movable wall and engageable with a brake actuating mechanism, the push rod being adjustable from outside the actuator, a spring 8 urging the wall 4 in a brake applying direction and a port to admit pressure fluid to urge the wall in a brake releasing direction.
Patent GB-1097298-A (GB)
Title: Improvements in or relating to adaptive threshold circuits
IPC: G06F7/02
Filed: 1966-10-17
Abstract: 1,097,298. Adaptive threshold circuits. INTERNATIONALE BUSINESS MACHINES CORPORATION. Oct. 17, 1966 [Oct. 19, 1965], No. 46236/66. Heading G4R. An adaptive circuit comprises two threshold circuits to provide signals representative of marks and spaces respectively, the threshold levels being set with respectively a minimum mark signal level and a maximum space signal level derived by means responsive to successions of signals known to be marks and spaces respectively. In Fig. 1, channels 10 of a multi-channel read head, sensing marks and spaces (the latter include erasures) on a document, each feed respective upper and lower threshold circuits 14, 16 to indicate presence of marks and spaces. Commutator markings on the document produce a timing pulse on line 36 as each position where a mark may occur is passed. In a learn mode, using a representative document, the signals from the read head are ORed at 20 to produce a variable amplitude signal which is gated 24, 26 to a " minimum mark " circuit 30 or a " maximum erase " circuit 32 according as the signal is known to represent a mark or erasure (space) as indicated by a concurrent signal on one of two lines 42, 44. The " minimum mark " and " maximum erase " circuits 30, 32 respectively store the minimum mark signal and the maximum erase signal so far from the document, and at the end of the document, these signals (stored on capacitors) are digitised 50, 60, and stored in latches 52, 62. The latch outputs are converted to analogue form 54, 64 to provide the two threshold levels for the threshold circuits 14, 16, a range overlap switch 76 automatically ensuring that the higher of the two levels goes to the upper threshold circuits 14 and the lower level goes to the lower circuits 16. A preset potentiometer 70 provides a so-called " control threshold " between the " maximum erase " and " minimum mark " threshold levels. In a hold mode, documents can be read using the threshold levels set during the learn mode. Signals above the upper threshold are classed as marks and signals below the lower threshold as erasures (spaces). Signals between the thresholds are classed as uncertain, or if a word should have only one mark and no certain mark is detected and one uncertain signal is detected the latter may be taken as the mark. Alternatively, uncertain cases can be classified as marks and spaces according as they fall above or below the " control " threshold. In an adapt mode, operation is as in the hold mode except that if a sensed amplitude falls between the " minimum mark " threshold and the "control" " threshold it is used to update the " minimum mark " level as in the learn mode. Similarly, if the sensed amplitude falls between the " control " threshold and the " maximum erase " threshold it is used to update the latter. A second embodiment (Fig. 8, not shown) differs in that motor-driven potentiometers with feedback replace the latches 52, 62 and the associated converters 50, 54, 60, 64.
Patent GB-1400315-A (GB)
Title: Manufacture of large scale integrated semi conductor devices
IPC: H01L27/02
Filed: 1973-10-04
Abstract: 1400315 Manufacture of integrated semiconductor devices INTERNATIONAL BUSINESS MACHINES CORP 4 Oct 1973 [8 Dec 1972] 46307/73 Heading H1K Quantities of large scale integrated semiconductor devices of multiple types are simultaneously fabricated by statistically pre-determining the total yield probability for a wafer of known size and composition from past records and the yield distribution gradient over the wafer surface (usually radial for a disc with the highest value centrally and the lowest peripherally) determining the quantity requirements per individual type of device and matching it to the yield probability to optimize wafer utilization and yield for minimum waste, preparing a layout record defining the distributed locations of the individual devices of the several required types relative to a fiducial mark of the wafer of maximum useful yield and minimum waste, and preparing a sequential test routine program for the devices of different types, utilizing plural test pads located on the wafer. Thereafter a mask for photo-image processing (or a control program for a radiant energy beam location) is prepared in accordance with the master layout to control fabrication (for example by selective doping in known manner) of plural devices of each type in the wafer in accordance with the required distribution and yield gradient, e.g. n 1  of type 1, n 2  of type 2 &c., in each sub area of the wafer. After fabrication the formed devices are sequentially tested in situ according to the test program and a test record (e.g. on punch cards) is prepared for the test condition of each device, and its position relative to the fiducial mark of the wafer. The latter is then supported on a separable adhesive support and diced (e.g. by a laser beam) into discrete semi-conductor devices, which are sorted into type and quality from the positional and test records. An example of wafer layout for production of 8 distinct devices arranged in rows and columns is given.
Patent GB-1365961-A (GB)
Title: Process for sizing graphite or carbon yarn
IPC: D01F11/14
Filed: 1971-10-05
Abstract: 1365961 Coated carbon yarns TRW INC 5 Oct 1971 [5 Oct 1970] 46361/71 Heading B2E [Also in Division D1] Carbon yarn is coated with a polyamideacid curable size such that the coating constitutes 0.005-6% by weight of the yarn, the polyamide-acid being the reaction product of an approximately stoichiometric amine/anhydride mixture of at least one polyamine, at least one polyanhydride, and at least one monoanhydride of formula: where the left-hand R represents a substituent at the 4- or 5-position in the ring and the R's are selected independently from hydrogen and alkyl groups of 1-5 carbon atoms. The yarn may be coated with from 0.1-10% of its weight of an organic solution containing 5-60% by weight of the particular polyamideacid reaction product. The organic solvent may be dimethyl formamide, diethyl formamide, dimethyl and diethyl acetamides or dimethylmethoxy acetamide. Additionally dimethylsulphoxides, N-methyl-pyrrolidone, pyridine, formamide, and butyralactones if desired in the presence of typical hydrocarbon solvents. The preferred monoanhydride is 3-6 endomethylene 1236 tetrahydrophthalic anhydride. The amine may be an aromatic diamine or a C 5 -C 22  aliphatic amine.
Patent GB-1437759-A (GB)
Title: Jig for aligning and holding workpieces to be drilled
IPC: B23B47/28
Filed: 1974-10-28
Abstract: 1437759 Dowelling jigs; clamps R WOLFE 28 Oct 1974 [6 Aug 1974] 46442/74 Headings B3B and B3C A jig for aligning and holding the edges, during drilling, of two workpieces 1, 2 for subsequent connection together by dowels, comprises a clamping part 3 provided with two clamps 4, 5 with channel-shaped recesses 6, 7, Fig. 2, for receiving the workpieces and clamping them together possibly on bench 12, with a gap between and along the edges defined by spacer 8. A separate template part 14, Fig. 3, has a spacer guide 18 insertable in and slidable along the gap and a clamp 21 enabling the part 14 to be secured relative to the workpieces in a desired position along their edges, so that a pair of holes 15, 16 in the part and serving as guides can be used for drilling holes in register along the edges of the workpieces. The clamping part may have similar holes 9. The two parts 3, 14 may be identical (Fig. 5, not shown) and may have a number of pairs of holes (24-29) with drill guide inserts (30-32) of different sizes (Fig. 6, not shown).
Patent GB-1028298-A (GB)
Title: Improvements in or relating to agricultural harvesting machines
IPC: A01D41/12
Filed: 1963-11-28
Abstract: 1,028,298. Combine-harvesters. MASSEYFERGUSON INC. Nov. 28, 1963 [Nov. 29, 1962], No. 47003/63. Addition to 911,537. Heading A1F. In a modification of the combineharvester described in the parent Specification, a cleaning auger 50, 51 is arranged along the base of each of the grain tanks 20, 21 so as to feed grain to the transverse auger 45, the latter being of larger capacity than the cleaning augers but of smaller capacity than the final-delivery auger 46, to obviate jamming. As in the prior Specification, the cleaned grain is collected within the harvester body 11 by an auger 24 which feeds an endless paddle-conveyer 26. The conveyer 26 discharges into a transverse auger 27 having two outlets 33, 34 respectively positioned above the two tanks 20, 21. The outlet 33 is adjustable between open and closed positions by a flap-valve 35 movable by a lever 38 accessible to an operator, whereby the grain-loading between the tanks can be equalized or deliberately unbalanced as required.
Patent GB-1361654-A (GB)
Title: Roll changing device for a roll stand
IPC: B21B31/10
Filed: 1971-10-11
Abstract: 1361654 Rolling mills SCHLOEMANN AG 11 Oct 1971 [10 Oct 1970] 47145/71 Heading B3M A roll-changing assembly, for a rolling mill having two spaced housings 1 in which the chocks 2 of a roll 3, and spacers 5 and 6 are located, is able simultaneously to remove both the chocks and spacers from the housings. The assembly comprises two trolleys 8 (Figs. 1 and 2), one associated with each housing, which are linked together by beams 10 and which run on a pair of parallel rails 7 (Fig. 3, not shown) passing into the housings 1. Associated with the right-hand trolley 8 (Fig. 2) is a hook 27 for engaging the spacer 6.  To remove the chocks and spacers, the chocks are raised in the housings, and the trolleys 8 are pushed by a piston-rod 11 beneath the chocks. The chocks are lowered on to the trolleys and can simply be withdrawn along the rails 7. Before the trolleys are withdrawn, however, the hook 27 can be engaged with an abutment 23 of the spacer 6. When the trolleys are withdrawn, the spacer 6 is drawn along a crosspiece 4 (which connects the two roll housings) and pushes the other spacer 5 out of the housings. The two spacers are deposited on a carriage 30 (Fig. 1) when the chocks are clear of the housings. The carriage is movable transversely of the cross piece 4 (Fig. 4, not shown) to position a replacement set of spacers in alignment with the cross piece. The hook 27 is used to push one replacement spacer in position, whereas an abutment 29 associated with the left-hand trolley 8 pushes the other in position. A limit switch 22 and a pivotable roller 20 control the engagement of the trolleys with a hook on the end of the rod 11.