baber/WOPTO huggingface dataset:
Patent GB-879884-A (GB)
Title: Method of manufacturing printed circuit boards or the like
IPC: C23F1/00
Filed: 1959-08-07
Abstract: 879,884. Residue defection using radio-activity. STANDARD TELEPHONES & CABLES Ltd. (Standard Elektrik A.G.). Aug. 7, 1959, No. 27076/59. Class 40(3) [Also in Group XVI] In printed circuit manufacture where parts of a copper clad insulating panel have the copper removed by etching to leave the desired circuit arrangement poor insulation between the circuit conductors sometimes arises due to a residue of the etching fluid remaining in and/or on the insulating material of the panel. Subsequent to the etching the panels are washed but adequate removal of the etching fluid can only be checked by drying the panels out completely and then measuring insulation resistances under controlled conditions. A method of providing a check for the presence of etching fluid residue immediately after washing is provided by the invention. In this method a radio-active substance is incorporated in the etching fluid and, after washing, the panels are tested for radio-activity. Suitable radio-active isotopes may be incorporated in the substances in the etching bath or added, as compounds or otherwise, in a form not detrimental to the operation of the bath. An etching agent used for copper is ferric-chloride solution and into this Fe<SP>55</SP> or Cl 36 may be incorporated. It is preferred to use isotopes radiating beta-rays, e.g. Cl 36 or Ca 45 (the latter as added calcium chloride). The radiation measuring device may be a Geiger-Muller counter or a scintillation detector.
Patent GB-281067-A (GB)
Title: Improvements relating to closures for petrol cans and the like
IPC: B65D41/04
Filed: 1926-10-29
Abstract: 281,067. Wood & Co. (Blackburn), Ltd., and Dewhurst, H. O. Oct. 29, 1926. Screw stoppers formed to aid withdrawal. - A cap, having the usual fine internal thread as used for cans for petrol or other motor spirit, is formed at the top with a bridge a<1> adapted to be gripped by a spanner &c. or to have a piece of metal inserted through the aperture a<2> in the bridge to facilitate removal of the cap. Specification 643/88 is referred to.
Patent GB-690143-A (GB)
Title: Anti-abrasion coatings for gelatino silver halide emulsion layers
IPC: G03C5/40
Filed: 1951-11-19
Abstract: 690,143. Photographic light-sensitive materials. GENERAL ANILINE & FILM CORPORATION. Nov. 19, 1951 [Dec: 1, 1950], No. 27090/51. Class 98 (ii). Photographic light-sensitive material comprises a support, a gelatino silver halide emulsion layer, and an antiabrasion coating consisting of a resin obtained by reacting formaldehyde and a 5-substituted hydantoin of one of the formulµ wherein R, is a lower alkyl radical of not more than 5 carbon atoms and R 2  is H or a lower alkyl, cycloalkyl, or alkoxyalkyl radical of not more than 6 carbon atoms, and Z represents the methylene radicals to complete a 5- or 6- membered cycloaliphatic group. Numerous 5-substituted hydantoins are specified. In examples, a gelatino silver halide emulsion on a cellulose acetate support is supercoated with a methanol solution of formaldehyde-5: 5-dimethylhydantoin resin; and a silver chlorobromiodide emulsion on a paper support is supercoated with an ethanol solution of formaldehyde - 5 - methyl - 5 - ethylhydantoin resin- or of formaldehyde- 5-methyl- 5-ethoxyethylhydantoin resin. An X-ray film coated on both sides with a gelatino silver halide emulsion is supercoated on both sides with antiabrasion coatings.
Patent GB-407633-A (GB)
Title: Improvements in or relating to blading for centrifugal pumps and other machines having rotors with blades co-operating with flowing fluids
IPC: F04D29/24
Filed: 1933-10-02
Abstract: 407,633. Centrifugal pumps; turbines. FOTTINGER, H., 65, Berlinerstrasse, Wilmersdorf, Berlin. Oct. 2, 1933, No. 27105. Convention date, Oct. 1, 1932. [Classes 110 (i) and 110 (iii).] Impeller blades have segmental side pieces b which fit together to form a closed ring. The side pieces are bent either in the same direction or in the reverse. When one side piece only is provided, this is formed on the right and left of the blades alternately. A thickened profile is formed by bending an extension a over a former h. Concentric ribs e are provided for centring the blades. With large impellers two or more rings of blades are provided.
Patent GB-271385-A (GB)
Abstract: 271,385. Nose, T. March 10, 1927. Voting-apparatus. - An apparatus for delivering balls for voting comprises a rotatable polygonal container and means within the container adapted to permit the discharge of the balls one at a time. As shown, the container 1, Fig. 3, is mounted to rotate on supports 7 on a base 9 and is formed with a box 14, Fig. 5, consisting of a baseboard 15 and top 16. The base 15 is provided with grooves 17, 18, the groove 18 having a right angled shutter 22 pivoted at 25 therein to permit the passage of one ball at a time. The grooves communicate with one another by means of an opening 21 and partition 20 which leads to the discharge aperture 19 in the groove 17. Grooves 26, 27, are formed in the top 16 to allow the shutter 22 to swing and to provide a passage for the balls respectively. In operation a counter clockwise rotation of the container mixes up the balls and on the clockwise rotation they are led by the incline 29 on the top 16 to the incline in the groove 18 and passed as shown in the various positions of Fig. 6 to the discharge aperture 19.
Patent GB-286330-A (GB)
Title: Improvements in bearings
IPC: F16F1/20
Filed: 1926-10-29
Abstract: 286,330. Wylie, H. N. Oct. 29, 1926. Materials, special.-A composite lining forming a, bearing between surfaces which move over on another with an oscillating movement such as laminated spring shackles comprises a layer of rubber or like material mounted on a layer of harder material, such that small movements are accommodated by elastic strain in the rubber and larger movements by slip of the harder material. According to the invention the elastic material does not make contact with any part of the pivot or eye of the spring. Fig. 3 shows an elastic lining n and a harder lining l between the pin f and the eye g of a spring. The harder material may be flanged to retain it in position.
Patent GB-537012-A (GB)
Title: Wringers and the like
IPC: D06F45/18
Filed: 1939-10-04
Abstract: 537,012. Wringers; machinery guards. LOVELL MANUFACTURING CO. Oct. 4, 1939, No. 27192. Convention date, Oct. 7, 1938. [Class 138 (ii)] [Also in Group XXIV] A power-driven wringer comprises a wringer connected with its supporting head so as to permit bodily movement substantially perpendicular to the axes of the rolls, transmission gear on the head for driving a gear on one of the rolls, and means whereby the said movement of the wringer disengages the roll gear. As shown, the wringer is supported by parallel links. 28 permitting lateral movement, which links are pivoted to a plate 26 carried by parallel links 22 pivoted to the supporting head 14 so as to permit up and down movement. A spring 25, Fig. 4, resiliently supports the links 22 and the wringer in a horizontal position. The drive is transmitted through a shaft extending through the vertical pillar supporting the head 14, which shaft carries a pinion 34 driving through pinion 35 a pair of facing connected gears 37 with either of which a pinion 41 on the roll shaft 42 can be engaged for driving or reversing, respectively. The shaft 42 is supported in a bearing 43 on a bracket 44 which is resiliently supported by bolts 46, Fig. 4, carrying springs 48 on the end of the wringer. The bearing 43 extends through a clearance aperture 49 in the head and carries a plate 52 with punched-up parts 53, 54 adapted to engage bevel-ended pins 51 in the head. Fig. 1 shows the roll gear 41 held in driving engagement with one of the gears 37 by the edge of the plate 52 engaging a pin 51. A horizontal pull on the wringer, e.g. an involuntary pull in the case of the operator's fingers being caught between the rolls, causes the yieldingly-mounted bracket 44 to tilt, thus releasing the plate 52 from the pin 51 and drawing the roll gear 41 into neutral position, or if the pull is continued, into gear with the other wheel 37 to effect reversal of the rolls. Similarly if the wringer is pulled downwards as shown in Fig. 4 the plate 52 is released from locked engagement and the drive arrested owing to the gear 41 being forced out of engagement with the gear 37. The drive is also arrested by a combined lateral pull or downwardly directed pull on the wringer. Specification 529,239, [Group XXIV], is referred to.
Patent GB-821683-A (GB)
Title: Improvements in gas meters
Inventor: AMENDE HAROLD FREDERICK
IPC: G01F3/22
Filed: 1955-09-23
Abstract: 821,683. Gas meters. PARKINSON COWAN Ltd. Sept. 24, 1956 [Sept. 23, 1955], No. 27220/55. Class 54. A dry gas meter has at least two diaphragms of which the solid parts engage stops at each end of their strokes and in the linkage between the diaphragm and the tangent 13 of the meter crank-shaft 12 is included a flexible member which, by ensuring correct engagement of the diaphragms with their stops and by taking up clearances and wear, maintains constancy of the volume swept at each meter cycle. As shown in Fig. 1, the rod connecting the flag arm 11 to the tangent 13 is in two parts 15, 18 connected by springs 20, 21 lying on either side of a collar 19 and engaging the ends of a cylinder 17, the flexure of the springs being limited by stops 22, 23. If the flag arm is moving towards position 11b, the part 15 drives the part 18 and rotates the tangent by compression of the spring 20 until the diaphragm reaches its end stop or stops. The tangent movement is greater than the corresponding diaphragm stroke and the tangent has moved less than 90 degrees from the position of Fig. 1, but the drive of the crankshaft is taken up by another diaphragm so that the spring 21 becomes slightly compressed and tends to hold the first diaphragm against its stop. Moreover, the diaphragm may reach its stop before its controlling valve ceases to admit inlet gas and the full differential pressure can then act to hold the flexible portion of the diaphragm against peripheral supports or guides, where provided. Alternatively, the crank-pin on the tangent can be arranged to move radially in a slot along the length of the tangent against the action of springs arranged on either side of it or O-rings of elastic material may be used in one or more of the linkage bearings or the two parts 15, 18 of the connecting-rod may be joined by a spring of semi-circular shape and the flexure of the spring along the length of the connecting-rod may be limited by a slot which is formed in a rigid extension of the part 15 and engages over the crank pin on the tangent. As shown in Fig. 3, a leaf-spring 28 connects the flag arm 11 to a post 29 on the rod 14 and the post moves in a slot 30 in the arm 11 to limit relative movement of the parts 11, 14. In a further form, the flag rod is in two parts spigotted together and their degree of relative movement is limited by torsional flexure of a rubber sleeve bonded to both of them.
Patent GB-329692-A (GB)
Title: Improvements in the control and steering of wheel vehicles
IPC: B62D61/08
Filed: 1929-06-24
Abstract: 329,692. Shaw, H. S. Hele-. June 24, 1929. Chain, axle, and like distance members or torque rods.-In a vehicle in which an engine 1 mounted on the main frame drives the steering wheel 3 through chain gear 27, 28 and bevel gearing 30, the bevel gear is housed in a casing, 31 connected to the engine by parallel radius and torque rods 32, 33 to allow for relative springing movement between the road wheel and the engine.
Patent GB-1031574-A (GB)
Title: Improvements in or relating to ground-based aircraft flight simulating apparatus
Inventor: MARVIN RONALD ARTHUR
IPC: G09B9/46
Filed: 1964-07-01
Abstract: 1,031,574. Grounded flight trainers. COMMUNICATIONS PATENTS Ltd. April 20, 1965 [July 1, 1964], No. 27265/64. Heading B7W. A ground based helicopter flight simulator has means for simulating ground resonance in which a signal which is a function of simulated rotor speed and is a maximum when the rotor speed corresponds to the maximum ground resonance, and a threshold signal adjustable by an instructor are compared by a summing amplifier, and a signal is transmitted through a diode in series with the amplifier when the resonance signal is greater than the threshold signal to a relay which initiates oscillation of the trainee pilot's compartment and the flight instruments. The amplifier also has inputs corresponding to aircraft weight, cross-wind speed, aircraft lateral velocity, bank angle and ambient temperature, which affect ground resonance. The relay also applies a signal to a delay timer which, if the trainee pilot has not corrected for the resonance within five seconds, operates crash signals. The relay also introduces a hold input into the amplifier, which in effect lowers the threshold of resonance. A switch in series with the diode is only closed near the ground, so that resonance effects are only simulated near the ground, and the threshold signal can be varied by the instructor between a maximum at which resonance is never simulated, and a minimum at which it is always simulated on take-off.
Patent GB-463641-A (GB)
Title: Improvements in or relating to suspension systems for vehicles
IPC: B60G11/04
Filed: 1935-10-03
Abstract: 463,641. Vehicle spring-suspensions. VILLIERS, C. H. Oct. 3, 1935, No. 27278. Convention date, Oct. 8, 1934. [Class 108 (ii)] A vehicle suspension for single wheels comprises the axle carried at the ends of two spring arms through resilient or cushioning members. A flange 4 integral with a housing 5 is secured by bolts 6 to the transverse members 3 of the frame 1. A vertical spindle 7 passes through the housing 5 and has at its lower end a transverse member 9 on the ends of which spring saddles 10 are formed to which springs 10 are secured forming a spring fork. At the other ends of the springs rubber bushes 15 are positioned within the spring eye which bushes surround the reduced ends 17 of the wheel axle washers 19, 20 and nuts 22 being provided to compress the bushes axially. Friction or resistance means are provided in the housing. 5 to restrain castoring by the wheel. In another form the wheel mounting is not adapted to swivel the ends of the springs being mounted on spring saddles secured to longitudinal members of the frame.
Patent GB-1167392-A (GB)
Title: 5-[(Aryldehydropiperidinyl- and Aryldehydropyrrolidinyl)- Alkyl]-2-Oxazolidinones
IPC: C07D263/20
Filed: 1967-06-13
Abstract: 1,167,392. Tranquillisers. A. H. ROBINS CO. Inc. 13 June, 1967 [13 June, 1966], No. 27291/67. Heading A5B. [Also in Division C2] Oxazolidinones of general formulaI wherein B is -CHR"-CHR"'- or -CHR" -CHR"-CH 2 -; R is hydrogen C 1-8  alkyl, cycloalkyl, phenylalkyl or substituted phenylalkyl, the substituents being selected from halo, C 1-8  alkyl, C 1-8  alkoxy, trifluoromethyl, C 1-8   alkylmercapto, di-(C 1-8 -alkyl)amino, nitro and hydroxy; R' and R" are hydrogen or methyl; - (Nu) is a heterocyclic ring radical selected from 2, 3- or 3, 4-dehydropyrrolidinyl or 2, 3- or 3, 4-dehydropiperidinyl; and A is phenyl or substituted phenyl attached to a carbon atom of the hetero ring double bond at the 3 or 4 position, remaining valencies of the carbon atoms of said ring being satisfied by hydrogen atoms and 0-4 methyl groups, wherein phenyl substituents are selected from the list given for the substituted phenyl alkyl radical above; and acid addition salts thereof are active as major tranquillisers. They may be administered orally or parenterally in compositions containing the active ingredient together with diluents and/or carriers, whilst further active ingredients may be added e.g. sedatives, analgesics, antacids, other tranquillisers and anti appetite and antiulcer drugs.
Patent GB-1195169-A (GB)
Title: Sinks.
Inventor: TSURUMI MATSUNOSUKE
IPC: E03C1/28
Filed: 1968-06-07
Abstract: 1,195,169. Sink having a trash collector. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 7 June, 1968, No. 27336/68. Heading A4N. The sink comprises a water receptacle 4 having a water outlet port 7 in the bottom thereof, a container 9 secured at its open and upper end to the water outlet port 7 and having a water discharge port 10 formed at the lower portion, a water permeable trash cage 17, which comprises a wire net cylinder 18, a bottom plate 19 for closing the lower end of the wire net cylinder 18 and having a plurality of holes 19<SP>1</SP> and a ring-shaped cap 20 fixed to the open upper periphery of said wire net cylinder 18, removably held within said container 19, and a valve 24 normally closing the opening of said trash cage and openable by water or trash. There are a plurality of spaced by-pass holes 23 formed in the flange 21 on the ring-shaped cap 20 which allow the foul water to pass, when the trash cage 17 becomes full of garbage and water permeability of the trash cage 17 is decreased, through the spacing between the outer periphery of the trash cage 17 and the inner surface of the container 9 into the water discharge port 10. (For Figure see next page.)
Patent GB-1488197-A (GB)
Title: Method for colour-anodizing aluminum and aluminum alloys
IPC: C25D11/06
Filed: 1975-06-27
Abstract: 1488197 Colour-anodizing aluminium S KIMURA 27 June 1975 [29 June 1974]  27383/75 Heading C7B Al or an Al alloy is colour-anodized in an electrolyte comprising (a) citric or succinic acid, (b) sulphosalicylic or sulphophthalic acid and (c) sulphuric acid. Treatment of Alloy H9 is specified, the following conditions/concentrations being preferred: (a) 5-100 g/l, (b) 1-30 g/l, (c) 0À1- 5À0 ml/l, temperature 10-40 C and c.d. = 0À1- 2À0 A/dm<SP>2</SP> A.C. or 0À5-2À0A/dm<SP>2</SP> D.C.
Patent GB-228263-A (GB)
Title: Improved light portable baby car
IPC: B62B7/02
Filed: 1923-11-01
Abstract: 228,263. Weatherell, R. D. Nov. 1, 1923. Folding and collapsable vehicles.-A light portable collapsable baby-carriage comprises two longitudinal members A between which is slung a seat D, two supporting members B pivotally secured to the ends of the longitudinal members A and to a wheel-carrying axle C, and a walking or other stick, rod, &c. E detachably secured to the axle C and to the longitudinal members A preferably by sockets K, L.
Patent GB-261730-A (GB)
Title: Improvements in carbon slip-pieces for current bow collectors
IPC: B60L5/20
Filed: 1926-11-02
Abstract: 261,730. Conradty, C., [Firm of]. Nov. 23, 1925, [Convention date]. Bow collectors.-A turntable carbon slip-piece made as a single tube or in segments and having surface contact with the conductor is composed entirely or partly of graphite, which may be synthetic electro-graphite free from binders.
Patent GB-1172332-A (GB)
Title: Improvements in or relating to Heat Dissipating Devices for Semiconductors and the like
IPC: H01L23/467
Filed: 1968-06-10
Abstract: 1,172,332. Semi-conductor devices. FORBRO DESIGN CORP. 10 June, 1968 [15 June, 1967], No. 27493/68. Heading H1K. A heat sink of U-channel form on which semiconductor devices may be mounted has a plurality of parallel heat dissipating fins 4, 5, 6 mounted on the edges of the channel walls, the fins being of sheet metal and being slotted to form lips in good thermal contact with the channel walls. Tabs formed on the fins during their manufacture serve to position them relative to one another and being adjacent to and in contact with the channel also serve to increase the thermal coupling between it and the fins. A circulation of fluid coolant such as air driven by fan 48, 49, cools the components on the heat sink. These components may be either directly mounted in holes 32-37 on the sink or may be on a circuit board 28, 29 attached to and spaced from the channel walls by means of stand-off studs 30, 31. The heat sink may be made of copper. In an alternative arrangement, Fig. 8, not shown, there may be fins mounted on both ends of the U-channel.
Patent GB-1217314-A (GB)
Title: Improvements in or relating to resistance bridge arrangements
Inventor: CANDELAND HAROLD
IPC: G01L1/22
Filed: 1967-06-14
Abstract: 1,217,314. Measuring bridge systems. ATOMIC POWER CONSTRUCTIONS Ltd. Sept. 11, 1968 [June 14, 1967], No.27534/67. Heading G1U. In a network for comparing any particular pair of a number of pairs of impedances, e.g. strain gauge resistors, with a pair of standard impedances, the test and standard impedances being connected at the time of comparison in a four arm bridge circuit, a switching system is provided by which a respective impedance for each pair can be preselected at a time when the respective pair forms a part of the bridge circuit and has a nominal reference impedance for connection across one or other of the standard impedances to adjust the bridge circuit to provide a reference output at the time of preselection. A memory system is provided in which the values of the preselected impedances are set and retained and by which the switching system is subsequently controlled during use to connect the respective impedance associated with each pair of impedances to adjust the bridge circuit when the particular pair forms part of the bridge circuit at a time when its impedance value is to be determined. The variable resistor pairs 1, 1<SP>1</SP>-150, 150<SP>1</SP> are permanently connected in parallel across reference impedances Sb, Sb<SP>1</SP>, to form a set of bridge networks. The output of each network is successively monitored by operating the switch 209, which connects the digital voltmeter 201 between the junction of each pair in turn and the junction of Sb, Sb<SP>1</SP>. Each variable pair is initially tested in its normal unstrained position, some of resistors R 2  -R 10  being switched across whichever arm Sb, Sb<SP>1</SP> is appropriate to reduce the voltmeter reading to zero, the settings of the switches being memorized for the particular variable pair. Subsequently, when the pair is in use, these switches are set to the same positions to provide the appropriate reference impedance going zero output for the unstrained condition. This subsequent setting is achieved using a matrix memory arrangement, with columns T 1  -T 150  corresponding to the variable resistor pairs and rows P 1  -P 10  corresponding in number to the switches, to operate relay coils RC1-RC10, which control the switches RR1-10. The supply 220 is connected to a column selected by switch 217 in accordance with the resistor pair being monitored. In the initial setting up, diode plugs are inserted at matrix crossover points to enable those relay coils RC1-RC10 necessary to operate the appropriate switches RR1-10 to bring in the necessary balancing resistors. These switches will then be automatically operated in subsequent use, as appropriate to a particular strain gauge pair being monitored.
Patent GB-242312-A (GB)
IPC: B02C7/06
Filed: 1925-11-02
Abstract: 242,312. Roth, E. Nov. 1, 1924, [Convention date]. Mills and apparatus. - In disintegrating- apparatus with two oppositely-rotating hollow conical casing parts in which the material passes out through a slot provided in the periphery of the apparatus, radial ribs are provided on the inner sides of the casing parts and are of such a depth that compartments are formed between the ribs in which the material is securely held and guided towards the periphery, the reduction of the material being effected solely by the portions of the material which project beyond the ribs of one casing part being carried past and rubbing against the portions of the material projecting beyond the ribs of the other casing part. As shown, the conical casing parts a<1>, a<2> provided on the inside with radially-extending ribs b<1>, b<2> are connected by coupling-members f<1>, f<2> to the hollow shafts d<1>, d<2> which are mounted in bearings h<1>, i<1>, h<2>, i<2> and rotated in opposite directions by belt pulleys g<1>, g<2>. The material is fed by means of worm conveyers in the hollow shafts d<1>, d<2>, and passes out through a peripheral slot s which is formed by two rings c<1>, c<2> removably fitted into the casing parts a<1>, a<2>.