baber/WOPTO huggingface dataset:
Patent GB-1290224-A (GB)
IPC: G02B27/14
Filed: 1970-02-26
Abstract: 1290224 Concave dichroic mirror systems THOMSON-CSE 26 Feb 1970 [27 Feb 1969] 9473/70 Heading G2J [Also in Division H4] In a flying spot scanner wherein the light spot is focussed through a diaphragm P onto an image D and after modulation thereby is passed by a lens L to a trichrometer optical separator employing planar dichroic mirrors to reflect spectral components to respective photomultipliers P<SP>1</SP> B , P<SP>1</SP> R , P<SP>1</SP> V , the variation of angle at which the light is incident on the mirrors, e.g. due to the action of lens L, or to the react point being scanned at D by light from a particular area of diaphragm P, gives rise to parasitic frequency and amplitude modulations in the photo-detector outputs because of the variation of the spectral response of the mirrors with incident angle. This is overcome by using concave dichroic mirrors M<SP>1</SP> R , M<SP>1</SP> B  placed beyond the real image p<SP>11</SP> of diaphragm P so that all the light rugs are incident thereon at substantially the same angle mirrors provide approximately unity enlargement of P<SP>11</SP>. A third fully reflecting concave mirror M<SP>1</SP> V , or a concave lens, passes remaining light to the third photomultiplier.
Patent GB-1290755-A (GB)
IPC: B65B61/06
Filed: 1970-06-15
Abstract: 1290755 Packaging AKERLUND & PAUSING AB 15 June 1970 [20 June 1969] 28921/70 Heading B8C A continuous sealing strip 31a is sealed to the open flaps of cartons 10 by heat sealing shoes 32 and is severed between the cartons before their passage to a flap folding step. The cartons are held in holders which are advanced by driven chains, Fig. 8 (not shown). So that the sealing shoes 32 shall be stationary relative to six cartons during sealing and shall then move to contact the subsequent six cartons, the whole sealing assembly slides on rails 39 and is reciprocated in synchronization with the speed of carton advance by a driven chain 42 acting through a rod 41. The sealing shoes 32 are pressed into contact with the cartons by a piston and cylinder unit 51 which, by pivoting links 46 about axes 47, raises posts 36 on which is mounted a shoe supporting bar 33. For cleaning purposes, the bar 33 together with its sealing shoes can be swung out of the plane of Fig. 1, the necessary pivot being freed by sliding sleeves 54 downwardly against springs 55. In the illustrated embodiment, the sealing strip 31a is severed by knife blades 61 which are located at the sealing station and which cut the strip while sealing is taking place. The blades 61 are operated by a piston and cylinder unit 71 which, through cranks and a rocker shaft 64, is connected to push rods on which the blades are mounted. There is no blade on the upstream side of the most upstream sealing shoe 32, thus ensuring that the sealing strip will be pulled through the sealing station by the most upstream carton 10a at each sealing step. In another embodiment, Figs. 9-13 (not shown), cutting is carried out downstream of the sealing station by a rotary cutter which is substantially the same as that described in Specification 1,290,756.
Patent GB-1290763-A (GB)
IPC: F23G7/00
Filed: 1970-04-10
Abstract: 1290763 Metal recovering furnaces R HALL 19 April 1971 [10 April 1970] 17273/70 Heading F4B  In a furnace for melting down and reclaiming scrap metal and burning off unwanted materials such as paper, pitch, plastics and rubber, a removable hearth 25 is positioned over a fixed hearth 1 and has a discharge spout 27 extending through a door 16, the hearth 1 discharging into a collecting trough 3. The melting chamber is fired by one or more fluid fuel burners 5 and is divided by a wall 2 defining an upper opening 7 for smoke laden gases. These are partly burnt by a burner 9 in the space 8 from which a flue 10 leads to a further burning chamber 11 fired by a burner 15. A throat 14 leads to a chimney 13 and a fan 44 supplies air subject to the control of light sensitive equipment 40, 42. A fan 6 supplies combustion air to the burners 5 and 9. The hearth 25 comprises a steel or iron tray standing on legs 26 and is used for the pressing of lead bearing scrap, which lead runs off through spout 27.
Patent GB-1295619-A (GB)
IPC: C07D311/16
Filed: 1971-07-08
Abstract: 1295619 3,4 - Dimethylcoumarinyloxy alkylcarboxylic acids BOEHRINGER MANNHEIM GmbH 8 July 1971 [10 July 1970] 32181/71 Heading C2C Novel compounds of the Formula (I) wherein R 1  and R 2 , which may be the same or different, are H or C 1-3  alkyl radicals, and R 3  is H, or C 1-3  alkyl which can be substituted by an amino, alkylamino or dialkylamino radical or an optionally alkylated 5-7-membered ring containing 1 or 2 nitrogen or oxygen atoms, or R 3  is an N-alkylated piperidine ring, or pharmacologically compatible salts thereof, may be obtained (a) by condensation of 7-hydroxy-3,4-dimethylcoumarin with a compound of formula wherein X is a halogen atom or the residue of a sulphonic acid, or (b) by reaction of a compound of Formula (III) or reactive derivative thereof, with an alcohol R 3 OH, and then optionally converting the products into desired salts. Pharmaceutical compositions for sinking serum lipids, especially triglycerides and cholesterol, comprise compounds of Formula (I) above with solid or liquid pharmaceutical diluents or carriers.
Patent GB-1296418-A (GB)
IPC: D21H23/00
Filed: 1970-03-24
Abstract: 1296418 Papermaking BADISCHE ANILIN-& SODA-FABRIK AG 24 March 1970 [25 March 1969] 14176/70 Addition to 1263488 Heading D2B The process of the parent Specification is modified by the use, as an additional component, of a water-soluble polyamide which has been reacted with a cross-linking agent, in order to increase the wet strength of the product. The polyamide is made by condensing (a) a dicarboxylic acid or amide-forming derivative thereof, (b) a polyamine of the formula H 2 N-(R-NH) 11 -H where R is alkylene and n is an integer from 2 to 5, or a mixture of such an amine with up to 50% of an amine in which n = 1, and (c) an aminocarboxylic acid or lactam thereof. In particular, it may be formed by condensing (a) adipic acid, (b) diethylenetriamine, or a mixture of diethylenetriamine with ethylenediamine and (c) caprolactam. The cross-linking agent may be epichlorohydrin, 1, 3-dichloropropanol, dichlorethylene, dichlorobutene, divinylsulphone, methylene-bis-acrylamide, N, N', N"-tris-acryloylhexahydro-S-triazine, diallylamine, glyoxal, crotonaldehyde, divinyl ether, diglycidyl ether or glycidyl aldehyde.
Patent GB-1310665-A (GB)
Title: Feeding mechanism for a device for cutting filament fibre tows  to predetermined staple length
IPC: D01G1/04
Filed: 1971-03-15
Abstract: 1310665 Stapling fibres ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 15 March 1971 6902/71 Heading D1F A feeding mechanism of a device for cutting filament fibre tows to predetermined staple lengths, comprises a rotary carrying means on which are positioned gripping elements inclined towards one another, said elements being provided with concave surfaces, which are extended by surfaces for guiding a tow to the concave surfaces, the concave surface of one gripping element being offset relative to the concave surface of another gripping element to which it is inclined. An arrangement of the feeding mechanism is shown in plan view in Fig. 2 whereon the rotary carrying means is in the form of discs 1 and 2 on which are mounted gripping elements 3 and 4. The element 3 has two projections 11 with a groove 12 between them, into which is positioned the projection 11 of element 4. Cutting knives (not shown) pass through the gaps between the gripping elements and cut the tow to predetermined lengths. The length of the cut tow may be altered by changing the position of the gripping elements on the discs. The position of the tow 5 in gripping elements 3 and 4 immediately prior to cutting, is shown in Fig. 3. In this figure; the disc 2 is fixed to rotating shaft 14 and the disc 1 rotates with shaft 13 and is also axially slidable thereon. In an alternative embodiment the gripping elements may both be mounted on one disc.
Patent GB-1315828-A (GB)
Title: Production of opal glass
IPC: C03C3/118
Filed: 1970-11-27
Abstract: 1315828 Opal glass JAMES A JOBLING & CO Ltd 22 Nov 1971 [27 Nov 1970 27 April 1971] 56590/70 and 11734/71 Heading C1M A glass which forms a clear melt, but opacifies on solidifying, consists of 60-75% w./w. SiO 2 , 8-15% B 2 O 3 , 9-17% RO, 3-7% M 2 O, 2-7% Al 2 O 3 , 1-4% F, 0-2À5% ZrO 2  and 0-4% TiO 2  where R is Ca and Ba and/or Sr and/or Mg and/or Zn, Ca comprising at least part and preferably at least 60% of R, and M is Na, K and/or Li, Na preferably comprising at least 75%. The product preferably has an opacity number (defined) of at least 5 and a viscosity of 10<SP>3.2</SP> poise at at least 20‹ C. above the upper separation temperature (defined). The thermal expansion coefficient between 20 and 400‹ C. is preferably not more than 65.10<SP>-7</SP>/‹ C. In the preparation the molten glass may be cooled very rapidly for solidification, e.g. 500‹ C./second, from 1100- 1250‹ C. to about 700‹ C.
Patent GB-1323531-A (GB)
Title: Magnetic tape cassette assemblies
IPC: G11B23/44
Filed: 1971-05-27
Abstract: 1323531 Recording and playback; magnetic tape cassettes POLAROID CORP 27 May 1971 17579/71 Heading G5R A cassette 14 has its length equal to at least 3À6 times its height. As shown, such a cassette 14 containing a narrow (1/20 inch) magnetic tape 30 wound on two hubs 36, 38 is incorporated in one edge of a mount 12 for two pictures 20, 22 and is inserted into a slot 100 of a recording and playback unit 80 to engage locating pins 108, 110, a half-track magnetic head 130, and a brake assembly 140 which acts on the supply roll 34 of tape 30. The unit 80 includes a record/playback switch 88, a volume control 86, a forward/ reverse lever 84, a microphone/loudspeaker (94), Fig. 7 (not shown), behind a grille 82, and an electric motor (200) driving a shaft 204. Movement of the lever 84 to either side causes one of two shafts 96, 98 to move forward into driving engagement with one of the hubs 36, 38 and the other of the shafts to be retracted, so that one of two discs 182, 184 secured on the shaft 98 engages the rotating drive shaft 204 which thereby drives the shaft 98 and, through a belt 206, the shaft 96.
Patent GB-1326381-A (GB)
Title: Combined cutting tool holder and workpiece steady
IPC: B23B29/16
Filed: 1971-04-19
Abstract: 1326381 Combined steady and tool holder UNITED KINGDOM ATOMIC ENERGY AUTHORITY 19 April 1971 [1 Jan 1970] 70/70 Heading B3T A combined cutting tool holder and workpiece steady comprises a body 10 with a head portion 11 in which is provided a bore 12 for the passage of a cylindrical workpiece and within the head portion 11 a plurality of radially disposed balls 13 are located angularly positioned with respect to the bore 12. The radial position of the balls is adjustable by respective screws 14 which are provided with concave surfaces 13a corresponding to the surface of the respective balls. The right hand screw 14 as shown in Fig. 1 is provided with steel rod 14a between the ball and the screw to permit adjustment. The cutting tool 17 is mounted between the projections 15 and 16 on one side of the body 10 and may be radially adjusted with respect to the axis of the workpiece by a micrometer screw 19. The apparatus is traversed along a cylindrical in a direction with the balls leading the cutting tool, the balls being pressed into the surface of the rotating workpiece to effect a swaging action prior to cutting by the cutting tool. The action of the balls eliminates irregularities in the workpiece surface and contour which permits its machining to fine tolerances.
Patent GB-1326733-A (GB)
Title: Spill valve
IPC: F16K31/363
Filed: 1969-09-12
Abstract: 1326733 Pilot operated spill valves JOSEPH LUCAS (INDUSTRIES) Ltd 1 Dec 1970 [12 Sept 1969] 45057/69 Heading G3P [ Also in Division F1] A spill valve for maintaining a constant pressure drop across a control unit supplied by a fuel pump 41 has a pilot spool 32 responsive to variations in the pressure drop from a value predetermined by spring 34 to connect chamber 29 to return port 12 via 31, 38, 37 or to inlet port 11 via 31, 36, 35 thereby causing follow-up movement of main valve member 16 which varies the return flow through ports 15 in a sense to restore the pressure drop to the predetermined value. The main valve member is rotated constantly by pinion 39 to minimize stiction, and is provided with rotatable bearing elements 19, 20 and spacers 21, 22. Sealing ribs on the bearing elements and passages 24, 25 ensure that the pressure at 11 and 29 has access to differential areas to urge the bearings and spacers against the gear portion 18.
Patent GB-1328344-A (GB)
Title: Folded aerials
IPC: H01Q9/26
Filed: 1969-09-30
Abstract: 1328344 Making aerials T G BELLIS 29 Sept 1970 [30 Sept 1969] 47894/69 Heading B3A [Also in Division H4] A folded monopole or dipole aerial formed from circular cross-section tubing has at its end or at each of its ends a curved portion which constitutes a fold, and which is flattened on its inside curvature. A straight length of tubing A, Fig. 2, is bent round a forming tool B, which is so profiled that the required flattening is obtained as the fold is developed. The tubing may have a longitudinal seam, which is positioned against the forming tool, and the distortion of the profile may result in a kidneylike shape, as shown in Fig. 4.
Patent GB-1329037-A (GB)
Title: Aerial balancing toy
IPC: A63H13/12
Filed: 1971-08-31
Abstract: 1329037 Mobile display devices H G HERON 31 Aug 1971 40580/71 Heading G5C [Also in Division A6] A balancing toy 10, Fig. 1, which may be used for advertising display purposes, travels automatically back-and-forth along an aerial cable 11, and comprises a grooved driving wheel 13 having an axle 14, Fig. 2, upon which is journalled a mounting 15 and a weighted balancing yoke 16, a support 18 being rockable on the mounting between stops 22, 23 and carrying an electric motor 19 driving the wheel 13 through gearing 20, the arrangement being such that when the motor 19 drives in one direction the support rocks to engage the stop 22, and when the motor drives in the opposite direction the support rocks to engage the other stop 23. When the support engages either stop 22 or 23, the reaction allows the motor 19 to drive the wheel 13, and the toy runs along the cable 11. A switch 26 carried by the mounting 15 and in the motor circuit engages travel limiting detents 37, 38 at either end of the cable, to reverse the direction of drive of the motor 19. As shown, a Fig. 32 encloses the motor 19, &c. and batteries 33 for the latter are carried in yoke weights 17. A :free running wheel 34, like the front wheel of a bicycle, is mounted at the front of a frame 31 fast with the support 18. When the motor 19 drives the toy forwardly, the front wheel 34 is raised from the cable 11, as shown, until the switch 26 engages the travel limiting detent 37, when the motor is reversed, the frame 31, &c. is lowered to engage the cable 11, and the toy goes backwards along the cable. The balancing yoke 16 may be detachable from the support 15, Fig. 5 (not shown).
Patent GB-1340050-A (GB)
Title: Disposable absorbent sanitary article
IPC: A61F13/15
Filed: 1971-04-30
Abstract: 1340050 Absorbent sanitary article JOHNSON & JOHNSON 30 April 1971 [1 May 1970] 21076/70 Heading A5R An absorbent incontinence pad or baby diaper comprises a layer 2 of absorbent material and sheets 3 of tissue paper, encased between a fluid pervious sheet 4 and a waterproof sheet 5 of thermoplastics material which has a series of embossed ribs 6 on one side which define a series of tear paths and which aid removal of the sheet 5 before disposal of the article and increase the frictional resistance of the sheet; the thickness of the film through the ribs is greater than that through the tearpaths. The ribs may be on either the innermost or outmost sides of the water proof sheet 5 and may be only along the marginal portions 7 of the sheet. The longitudinal margins of sheet 5 are wrapped around the edges of the absorbent material and attached to the fluid pervious sheet 4 by adhesive 13. In another embodiment of a baby diaper Figure 5 (not shown) the longitudinal marginal portions of the fluid impervious sheet 4 are folded underneath the absorbent material and are attached by adhesive (32) to the fluid impervious sheet 7 with the marginal portions of the fluid impervious sheet 7 provided with pressure sensitive adhesion patches (33) for securing the diaper around a baby.
Patent GB-1342692-A (GB)
Title: Moulding machine
IPC: B22C11/10
Filed: 1971-04-01
Abstract: 1342692 Foundry flask-stripping and mould assembling apparatus A S MASI 1 April 1971 12146/73 Divided out of 1342691 Heading B3F' The disclosure is the same as the parent Specification 1,342,691 but the claims are directed to apparatus for stripping cope and drag moulds from their flasks and assembling the cope and drag moulds. As shown in Fig. 10, inflatable bottom board support cushions 276 are inflated to lift a bottom board 274 into engagement with a drag mould 16 in a drag flask 12 and to abut the drag mould 16 against a cope mould 17 arranged above in a cope flask 13. The cushions 276 are moved upwards on a base 282 until the cope mould 17 is pressed against a pressure plate 254 by the drag mould 16. The abutment of cope mould 17 and pressure plate 254 is detected by a pressure-sensitive switch (not shown) which allows gas to escape from the cushions 276 so that the base 282 continues to move upwardly while the cushions 276 deflate. Stripper bolts 284 engage the drag flask 12 and strip it together with the cope flask 13 from the mould 16, 17. The moulds 16, 17 are lowered away from the flasks 12, 13.
Patent GB-1345336-A (GB)
Title: Metal cutting tools
IPC: B23B27/04
Filed: 1970-08-15
Abstract: 1345336 Cutting tools TAPER TIP Ltd 1 July 1971 [15 Aug 1970] 39465/70 Headings B3T and B3K A cutting tool comprises a tool holder and a removable cutting insert 20, the insert being conically tapered and is received in a conically taper bore 21 in the holder blade 12 which extends from the shank 10. A clamping screw 25 is provided to secure the insert in the bore 21 and prevent its rotation therein due to forces set up during operation. In the embodiment described the cutting tool is in the form of a parting-off tool but it is stated that the form of insert and its clamping may be used in milling cutters.
Patent GB-1345618-A (GB)
Title: Coating apparatus
IPC: B05D7/14
Filed: 1972-07-12
Abstract: 1345618 Web coating apparatus ILFORD Ltd 12 July 1972 [2 Aug 1971] 36168/71 Heading D1L Apparatus for coating a travelling web 1 comprises a contra-rotating transfer roller 2 rotating in a trough 5 of coating liquid 6, a doctor blade 7 for metering the amount of liquid carried by the roller surface, linked flanged rollers 8 and 9 for guiding the web 1 in contact with the transfer roller 2 and the non-coated side of the web in contact with a precision roller 10 located immediately downstream of the point of separation of the web 1 and roller 2 adjacent the roller 2 and separated from the surface thereof by a distance greater than the combined thickness of the web and the layer of coating liquid. The precision roller, which stabilises the bead 11 (Fig. 2) of coating liquid formed between the web 1 and roller 2 is a roller which has a total run out not exceeding 0.001 inches and is mounted on high precision air or ball race bearings. The apparatus is particularly suitable for the coating of stripes of magnetic material onto the surface of a web of, for example, cellulose acetate when the transfer roller 2 is rotated at a surface speed higher than the speed of travel of the web and is provided with peripheral rings on its surface and the precision roller is made of stainless steel.
Patent GB-1346758-A (GB)
Title: Vacuum interrupter contacts
IPC: H01H1/02
Filed: 1970-02-24
Abstract: 1346758 Sintered contacts ASSOCIATED ELECTRICAL INDUSTRIES Ltd 21 May 1971 [24 Feb 1970] 8800/70 Heading C7D [Also in Division H1] A vacuum-interrupter contact has a contact surface portion made of a material which comprises particles of a semi-refractory metal in which are dispersed from 1 per cent to 5 per cent by weight of particles of a refractory metal, the particles being compacted and sintered under vacuum, and the sintered compact being infiltrated under vaccum with a non-refractory metal. The non-refractory metal consists of or includes as a main constituant, copper, silver or an alloy of copper and/or silver. The semi-refractory metal consists of, or includes as a main constituent, chromium, chromium mono-boride, cobalt or a combination thereof. The refractory metal consists of or includes as a main constituent, tungsten, molybdenum or tantalum and I may have a particle size of À001 to 01 inch being granules consisting of sintered particles. The surface portion may be formed by making a sintered compact from a mixture of semirefractory metal powder, e.g. chromium, and the refractory particles and infiltrating the compact with the non-refractory metal, e.g. to provide a copper content of 20 per cent to 41 per cent by weight.
Patent GB-1351036-A (GB)
Title: Explosive projectiles
IPC: F42B12/22
Filed: 1971-09-23
Abstract: 1351036 Fragmentation projectiles FORENADE FABRIKSVERKEN 23 Sept 1971 44481/71 Heading F3A A fragmentation projectile 3, which expands upon launching from a tube 1, comprises: a flexible rubber envelope 5, 6 containing a liquid explosive charge 7; a detonator 8 supported by a fragmentation plate 4; and splinters in the form of balls 5a or thickened portions of a spirally wound wire (12), Fig. 4 (not shown). The projectile is expanded by a resilient wire or tube 10 and radial springs 11. Air-drag, inertia and centrifugal forces also assist. The launching tube may be comprised by a grenade which ejects the projectile either during flight or on impact. In the former case the projectile is provided with a parachute or braking or steering fins arranged in the maner of a shuttlecock or rotochute.
Patent GB-1351252-A (GB)
Title: Function generator for generating a sequence of pulses of variable width in accordance with a predetermined function
IPC: H03K3/78
Filed: 1971-04-19
Abstract: 1351252 Function generators VEREINIGTE FLUGTECHNISCHE WERKE-FOKKER GmbH 19 April 1971 [28 Jan 1970] 20594/71 Heading G4G A control apparatus generates a train of pulses A having a mark-space ratio which is a function of a control voltage U S , the transfer function of the input network for the control voltage being varied in accordance with the modulated output pulse train. The outputs of a sawtooth generator 41 and integrator 11 are added in resistors 42, 44 and fed to one input of a comparator 40 which emits a pulse whenever a threshold voltage is exceeded, the width of this pulse being dependent upon the period of time during which the comparator input exceeds the threshold. The resultant modulated pulse train A and its inverse A are fed respectively to the control electrodes of FET's 33, 34 of which the source-drain paths are connected respectively to resistive input networks 15, 10. The latter consist of series-parallel combinations 28, 29, 30 and 21, 22, 23 to which are respectively applied a reference voltage U B  and the control voltage U S . The junction points of the series resistors are connected to the FET switches which thereby determine the currents i 1 , i 2 . The integrator 11, pulse generator 12, FET 33 and network 15 form a control loop which ensures that the value of i 1  is regulated within the working range such that | i 1  | = | i 2  |, and the working range is limited by the upper and lower values of i 1  at which the equality ceases to be true. The limit points are a junction of the voltage U B  as determined by the regulating diode 32. The networks 10, 15 may be designed to yield any desired linear or non-linear junction within this range.