baber/WOPTO huggingface dataset:
Patent GB-1251990-A (GB)
IPC: H03L7/04
Filed: 1968-12-30
Abstract: 1,251,990. Automatic frequency control systems. HOLLANDSE SIGNAALAPPARATEN N.V. 30 Dec., 1968 [4 Jan., 1968], No. 61735/68. Heading H3A. An arrangement for stabilizing the frequency of a high-frequency generator 1 comprises a resonator 6 and a modulator 7 to both of which part of the output of the generator is fed, as shown, by means of a directional coupler 3. The resonator provides a signal, the phase-shift of which is a measure of the deviation from the desired generator frequency. The arrangement also comprises a mixer 9 and phase-sensitive detector 11 to which the output of the mixer is applied as well as the modulation signal 12 as a reference, an error voltage for adjusting the frequency of the generator being derived from the detector 11. According to the invention, the hybrid coupler 5 is connected to the mixer 9 through two separate channels of equal path length, at least one circulator 13 being provided by means of which the resonator 6 is included in one channel, while the modulator 7 is included in the other channel, as shown by means of a second circulator 14. It is necessary for the two paths to be of the same real length, as well as electrical length. As shown, isolators 15, 16 are included in the two paths to prevent feedback from modulator 9, the circulators having three ports. In a second embodiment the modulator (7, Fig. 2, not shown) is included directly in the second channel which however includes a second circulator to obtain an optimum bandwidth, one of its ports being provided with a reflector. The circulators may be of four port type, the fourth ports being provided with matched loads to prevent reflection toward the hybrid coupler, the isolators then being omitted. The hybrid coupler may be constituted by a short-slot-hybrid, or an H-plane T-junction, the two channels then including +45 and -45 degrees phase shifters respectively (18, 19, Fig. 2, not shown).
Patent GB-1252613-A (GB)
IPC: B23B27/16
Filed: 1969-08-29
Abstract: 1,252,613. Cutting tools. E. REBMANN. 29 Aug., 1969 [5 Sept., 1968], No. 43120/69. Heading B3T. A tool holding assembly comprises a body portion 1 having a detachable tool holder 2 with a shank 3 extending therefrom and which is clampable in a bore 4 in the body portion 1. A cutting tool of the detachable insert type is secured in the tool holder and is locatable angularly with respect to the body 1 by rotation with the holder and shank 3 in the bore 4. The tool holder is also adjustable axially in relation to the shank 3 by a screwed rod 12 which extends through the tool holder and engages the end of the body 1 to permit height adjustment of the cutting tool 7 relative to the body 1. The cutting tool 7 is clamped in the holder 2 by a bolt 10 and is supported on a seating 14 and has a chip breaker 8. In an alternative embodiment the bore and shank portion of t he holder are splined to permit selective angularly location of the holder and the height adjustment is effected by screw coaxial on to the shank 3 and extends from the bottom thereof to abut a stop member which is secured to the underside of the body portion.
Patent GB-1264435-A (GB)
IPC: C08G73/14
Filed: 1970-08-11
Abstract: 1,264,435. Coated wire. TORAY INDUSTRIES Inc. 11 Aug., 1970 [11 Aug., 1969; 24 Sept., 1969; 15 April, 1970; 7 May, 1970], No. 38738/70. Heading B2E. [Also in Division C3] A copper wire is coated with a solution of polyamideimide P which is then heated to 300-350C to cause cyclization. P is made by A reacting (I), a bis (tricarboxylic acid anhydride) anhydride with a primary diamine (II) H 2 N-R 3 -NH 2  and/or an aminocarboxylic acid (III) H 2 N-R 4 -COOH, to give an amide imide oligomer which is then B polymerized with a diisocyanate (IV) OCN-R 5 -NCO. R 1  and R 2  preferably have 3-25 C atoms, and of the three CO groups attached to each of R 1  and R 2 , preferably two are vicinal and one is not vicinal. R, and R 2  are preferably the same and may be aliphatic, alicyclic, or carbocyclic or heterocyclic aromatic groups. R 3 , R 4 , and R 5  have 2-30 C-atoms, and may be aliphatic, alicyclic, or aromatic. (IV) may be modified. Step A may be performed at room temperature. Step B is preferably performed in an organic solvent at 100-300C, preferably in two stages. Also present may be a tricarboxylic acid anhydride or a tetracarboxylic acid dianhydride. To increase the solubility of polymer P, tertiary amines or LiCl, CaCl 2 , MgCO 3 , or ZnCl 3  may be added. Optional catalysts are tertiary amines, or Co acetate, Co naphthenate, or Na oleate.
Patent GB-1265272-A (GB)
IPC: H01J17/49
Filed: 1970-03-11
Abstract: 1,265,272. Glow discharge lamps. BURROUGHS CORP. 11 March, 1970 [3 April, 1969], No. 11684/70. Heading H1D. In a Nixie tube comprising a stack of cathode electrodes 60 enclosed by a cylindrical anode including a rear plate 110 and a front screen 120, a capsule 200 containing a mercury-bearing substance 201 is secured to the rear plate 110. The latter has at least one projecting finger 170 extending toward the last cathode at the rear of the stack to facilitate the initiation of glow at said cathode. Preferably, a plurality of fingers 170 are provided along the central vertical axis of the plate 110. The fingers may be formed by taps or rods welded to the plate or by tabs punched out of the plate. The plate may be continuously curved or may have flat portions (Figs. 3 to 5, not shown). The capsule 200, comprising a metal ring having a recess containing mercury 201 in a suitable binder, is secured to the plate 110 by tabs 210 welded to the plate or punched from it. In alternative embodiments (Figs. 6 to 9, not shown), an annular capsule is secured in a depression in the anode plate or surrounds a raised portion of the plate. The tube filling includes neon or argon at a pressure of 20 to 80 mm. Hg in addition to the mercury.
Patent GB-1288607-A (GB)
IPC: A47J31/52
Filed: 1969-12-24
Abstract: 1288607 Tea makers GOBLIN (BVE) Ltd 24 Dec 1969 62775/69 Heading A4D A tea maker is setable to operate at a predetermined time and has a spring-biased kettle supporting platform which, when the kettle discharges, rises to switch off the kettle and activate an alarm and light system. A rotary switch controls the apparatus by activating contacts 6. The switch has four settings: OFF when all contacts are open and only the clock 4 is operative. LIGHT when only contacts 25 close to activate lights 9. AUTO when only contacts 26 and 27 close. Emplacement of the kettle opens contacts 34 and if full tilts the platform to close contacts 30/32. When the timer closes contacts 33 element 22 is activated to boil the kettle which discharges into a teapot allowing the platform to untilt opening contacts 30/32 and closing contacts 31/32 thus operating alarm 23 and lights 9. Incorrect positioning of the kettle would have left contacts 34 closed giving warning by the alarm 23 and lights 9. TEA NOW when contacts 25, 27, 28 and 28 are closed, 29 and 26 remaining open. This has the same effect as "AUTO" except that the timer contacts 33 are by-passed initiating the tea making immediately and illuminating pilot light 13.
Patent GB-1290308-A (GB)
IPC: C02F3/26
Filed: 1971-06-03
Abstract: 1290308 Aerating and agitating liquids FIRESTONE TIRE & RUBBER CO 3 June 1971 [15 June 1970 25 Feb 1971] 18899/71 Heading B1C Apparatus especially for aerating sewage comprises a flexible dome 17 held in tension at its periphery and supported by gas pressure and means beneath the dome to agitate the liquid. As shown the agitator is mechanical and is supported above the liquid, and the tank consists of impervious sheet material 12 supported by a solid backing 11. The gas may be introduced through the dome as shown at 19, or through the lower part of the tank; if it is introduced below the surface it may constitute the sole means of agitation. In another embodiment (see Fig. 4, not shown) the dome is floating and the agitator supported by floats. The impervious sheet material may be a nylon, rayon, cotton, polyester or other fabric coated with neoprene, butyl rubber or a polyurethane elastomer, or may be a heavy elastomeric (e.g. polyethylene) filler.
Patent GB-1296944-A (GB)
IPC: A61K9/20
Filed: 1971-04-19
Abstract: 1296944 Sugar lump as pharmaceutical carrier LABORATOIRES THEKAN 19 April 1971 [23 Feb 1970] 22402/71 Heading A5B A doseage unit for medical or veterinary use comprises a minor proportion of solid medicament distributed substantially uniformly throughout a compact multicrystalline matrix of substantially regular shape formed from a major proportion of sugar granules so as to resemble a conventional sugar lump. The lump may be of cube or cuboid shape. It may be made by preparing a composition comprising castor sugar, the medicament and sufficient water or aqueous ethanol to moisten the mixture, compacting it in a mould of plastics material and drying it by warming. In one embodiment, the ingredients are mixed dry and the mixture moistened; in a second, the medicament is dissolved or suspended in the liquid and the suspension or solution applied to the sugar granules; and in a third, the sugar granules are moistened by humidity. The product may be packed in plastics sachets.
Patent GB-1297231-A (GB)
IPC: C08L67/06
Filed: 1971-04-19
Abstract: 1297231 Artificial stone PRODUITS CHIMIQUES PECHINEY - SAINT - GOBAIN 19 April 1971 [23 Feb 1970] 22286/71 Heading C1H [Also in Division C3]  A binder composition for use in mortars and concretes comprises at least one unsaturated polyester, a vinyl monomer and 0À5-2% by weight of polyvinyl acetate based on the total weight of the polyester and vinyl monomer. Suitable polyesters are those derived from maleic acid, an aliphatic and/or aromatic diacid other than maleic acid and at least one glycol. In use the composition is mixed with a polymerization catalyst known to be used for hardening, e.g. benzoyl peroxide, an unsaturated polyester and an activator and the resulting mixture combined with a mineral filler, e.g. sized quartz and a calcareous filler and cast into a mould.
Patent GB-1297246-A (GB)
IPC: B65D43/02
Filed: 1970-02-11
Abstract: 1297246 Container closures WICANDERS KORKFABRIKER AB 11 Feb 1970 [11 Feb 1969] 6677/70 Headings B8D and B8T A method of applying a closure of ductile tearable material, to the mouth of a cup container having a flange (2), Fig. 1 (not shown), comprises the steps of (a) applying the inner peripheral portion (6), Fig. 2 (not shown), of the closure to the flange and (b) applying the outer peripheral portion (7) over the edge of the flange into close contact with the container wall. The press for applying the closure to the container comprises three parts, a central disc portion 16, a ring portion 13, and a rubber outer ring portion 21. The cap is forced on to the container by the central disc portion 16, the innter peripheral portion of the cap (6) is forced on to the flange (2) of the container by the ring member 13. The outer peripheral portion of the closure (8), Fig. 2 (not shown), is forced underneath the flange and into close contact with the wall of the container 1 by the action of the rubber ring 21. This member is distorted by the action of the top member of the press moving downwards against the ears of this ring. The nesting containers are detached one at a time for filling and sealing.
Patent GB-1308921-A (GB)
Title: Solvent compositions
IPC: D06L1/04
Filed: 1970-11-11
Abstract: 1308921 Solvents containing tetrachlcrodifluoroethane IMPERIAL CHEMICAL INDUSTRIES Ltd 1 Nov 1971 [11 Nov 1970] 53685/70 Heading C5D A liquid solvent composition for cleaning articles, e.g. printed circuits, comprises a mixture of tetrachloro-difluoroethane with 1,2- dichloropropane. Preferably the composition is an azeotropic mixture or one having a boiling- point within 20‹ C. of the boiling point of the azeotrope. The azeotrope of 1,1,2,2-tetrachloro- 1,2-difluorethane contains 25% by wt. of 1,2- dichloropropane. Optional additives are cationic, anionic and non-ionic detergents. The composition may be used in the liquid or vapour form.
Patent GB-1311863-A (GB)
Title: Hammers
IPC: B25D1/02
Filed: 1969-09-20
Abstract: 1311863 Hammers THOR HAMMER CO Ltd 1 Oct 1970 [20 Sept 1969] 46444/69 Heading B4C A hammer includes a hammer head of relatively hard metal e.g. steel or maleable iron having a threaded portion, a striking face of a material which is relatively softer than the metal of the head, and an intermediate element comprising a cup-like holder in which the striking face is secured, the intermediate element including a thread formation of plastics material adapted to co-act with the threaded portion of the head. As illustrated in Fig. 1 each striking face 12 is secured in the holder 13 by peening the edge 14, and an externally threaded plastics member 16 is received in a screw threaded bore 15 in the head. Rotation of the member 16 relative to the holder 13 is prevented by radially extending projections 18 engaging in complementary recesses in the holder 13. To prevent undue stress on the member 16 a ring (19) (Fig. 4, not shown) may be located in annular grooves (20, 21) in the head and holder 13 respectively. Alternatively an annular projection on one of the head and holder 13 may engage with an annular groove in the other. The member 16 may be cemented or adhesively secured in the holder 13, and a washer, e.g. of plastics may be positioned between the end face of the head and the base of the holder. Examples of materials for the striking face are listed in the Specification.
Patent GB-1315709-A (GB)
Title: Gauging systems
IPC: G01B13/08
Filed: 1970-09-09
Abstract: 1315709 Linear dimension air gauges MILWAUKEE VALVE CO Inc 9 Sept 1970 43122/70 Heading G1M [Also in Divisions G4 and H2] A system for determining the variation from a nominal dimension of a workpiece 144 comprises a gauging orifice 50, a manometer 22 and a fluid circuit including a valve 36 connected in parallel with a throttle valve 38. The manometer comprises a well 24 containing mercury and a tube 26 divided into a number of mutually insulated sections each completing an electrical contact between a common terminal 65 and a respective terminal 65a-65p as mercury rises up the tube due to the difference between the well pressure and the pressure in the tube. When switches 114, 133 are closed a mains voltage supply from a plug 87 is fed to a relay coil controlling a valve 52 via a master relay unit 118, contacts 122 of a relay 123 and contacts 126 of a timer 128. The valve 52 is therefore opened to supply pressurized air to the orifice 50. A timer 142 is started on closing the switch 114 and after a delay to enable equalisation of the pressure in lines 34, 40, 46 its contacts 154 are changed over thereby energizing a solenoid controlling the valve 36 to close this valve. A pressure difference is established across the valve 38 and causes mercury to rise in the tube 26 to an extent which depends on the variation of the dimension of the article 144 from the nominal dimension. Each contact 65a-p is connected to a respective jack socket 97a-p and a lamp 90a-p so that each contact closed by the rising mercury connects the respective lamp to the output of a transformer 86. Six jack plugs 98-1 to 98-6 each associated with a respective relay coil 102-1 to 102-6 and contacts 100-1 to 100-6 are plugged into selected ones of the sockets 97 to define tolerance limits for the article under test. After a time interval established by the timer 128 the contacts 126, 153 change over to de-energize the coils controlling the valves 36, 52 which return to their open and closed positions respectively and the mercury in the tube falls, the valve 42 being closed to control the rate of fall. The lamps 90 which were switched on by the rising mercury and which also had a jack plug inserted in the corresponding socket remain illuminated as the mercury falls, due to the holding action of the relays 100, 102, thereby maintaining a visual indication of whether or not the article exceeds the tolerance limits defined by the positions of the jack plugs. Loads 164a, b, &c, such as audio devices, computing sorting or marking mechanisms may be sequentially energized, via contacts 160 of the relays and the output of a rectifier 158, as the mercury rises in the tube 26.
Patent GB-1316669-A (GB)
Title: Bag making machine
IPC: B31B23/00
Filed: 1970-07-29
Abstract: 1316669 Bag making machines A L ROSS 29 July 1970 36791/70 Heading B5D [Also in Division B8] In making bags from a paper web by folding the web to tubular form and finally rupturing the web along perforated lines to form separate bags, a small transverse section of the web remains unperforated until the web passes through that part of the machine in which it is subjected to the highest pulling stresses. The longitudinal edges of the web are adhesively secured to form the tube. The web W from a roll (not shown) is fed round rolls 9 and 10 to an anvil roll 11 when it is perforated by a roll 12 across sections a and d leaving a central part 1<SP>1</SP> intact (see Fig. 12). Feed rolls 3 provide the draw-off tension and pull the web over a tube former 22, the part 1<SP>1</SP> being then perforated by a roll 121. Subsequently, the tube passes to a pinch roll assembly PR where second feed rolls 5 pass the web to rolls 6, 6<SP>1</SP> rotating at a slower surface speed than a main cylinder MC against the surface of which the tube is periodically gripped by a pinch bar 70 to cause rupturing at a line R adjacent a roll 80. Cam means ensures that the rolls 6, 6<SP>1</SP> grip the web before the bar 70 clamps the web against the cylinder MC and do not release the web until after each bag has been separated, when belts 33, 34 drive the bag at a faster speed to a tucker blade 37. Alternatively, the bottom of the bag may be unclosed. The pinch bar 70 has a flexible removable cover and is slightly spiralled to ensure progressive rupturing across the width of the web. Power is transmitted from an electric motor to cylinder MC, the other mechanisms being driven therefrom by chain and gear drives as shown in Fig. 11. The speeds of the first and second feed rolls 3, 5 and of the perforation rolls is the same, while the speed of the pinch rolls is slower. The speed of the main cylinder is faster than that of the feed rolls. Bag-width can be varied by using a different width of web and bag length is adjustable by varying the roller speeds. The perforator blades are set at an angle z between 15 and 45 degrees to the radial line rr through the roller axis, this ensures that the blades leave the web without snagging. The blades are adjustably mounted along their roller shafts and blades forming the corners y (Fig. 13) are also mounted on the same shafts. The bag may be of paper, glassine, a foil, a plastic, or a synthetic material.
Patent GB-1323221-A (GB)
Title: Objectives of variable focal length
IPC: G02B15/177
Filed: 1971-03-31
Abstract: 1323221 Zoom lens RANK ORGANISATION Ltd 22 March 1972 [31 March 1971] 8267/71 Heading G2J A zoom lens having a stationary rear assembly and a front assembly comprising four members the first being divergent and stationary with respect to zooming the second and fourth both convergent move forward simultaneously for zooming to the maximum focal length and the third moving backwardly and being divergent. The front assembly satisfies the relationships
Patent GB-1324325-A (GB)
Title: Self-centering crossfolder
IPC: D06F89/00
Filed: 1971-03-22
Abstract: 1324325 Folding sheets THOMAS BROADBENT & SONS Ltd 14 March 1972 [22 March 1971] 7526/71 Heading D1S A laundered sheet 12 fed in offset relation to a fold plane is folded by subjecting the sheet to first means 22 disposed above the sheet and in line with the fold plane to introduce part of the sheet 12 between a pair of squeeze rollers 14, 16 and into the fold plane, detecting the passage of the shorter side of the sheet 12 into the fold plane with a first detector 26 spaced a selected distance from the fold plane and clamping with a clamp 30. The sheet 12 in response to operation of the detector 26, continuing to feed the longer side of the sheet into the fold plane while detecting its passage with a second detector 28 spaced a selected distance from the fold plane, operation of the detector 28 releasing the shorter side of the sheet 12 to allow the complete passage of the sheet between the rollers 14, 16 in the fold plane so that the sheet is folded in a manner predetermined by the selected positioning of the detectors 26, 28 with reference to the fold plane. The roller 14 is mounted on an arm 18 pivoted at 20 so that the roller is movable into and out of the driving position. Folding is effected by an air blast pipe 22 adjacent to which is a traction blow pipe 24. The detectors 26, 28 may each comprise a photocell and light source or a feeler switch. As shown, the sheet 12 is fed along a conveyor 10 out of the plane of the paper and is offset to the left of the fold plane. The pipe 22 initially introduces the sheet between the rollers 14, 16 and when its right hand edge passes the detector 26 the clamp 30 holds the right hand section of the sheet stationary. The roller 14 is pivoted to its non- driving position, the pipe 22 is deactuated and the pipe 24 actuated. Air from the pipe 24 drives the left hand section of the sheet around the roller 16, Fig. 3. When the left hand edge of the sheet passes the detector 28, the clamp 30 is released, the pipe 24 deactuated, and the roller 14 returns to its driving position. The rollers 14, 16 complete the fold. In a modification (not shown), the pipe 24 is replaced by a roller pivotally mounted above the roller 16. If an additional fold is desired, a roller 32 may be provided beneath the roller 16 together with a blowpipe 34.
Patent GB-1326113-A (GB)
Title: Fire safety systems
IPC: A62C2/24
Filed: 1971-08-31
Abstract: 1326113 Window and door operating means THAKEHAM TILES (MARKETING) Ltd 31 Aug 1971 [23 July 1970] 5658/72 Divided out of 1326112 Heading E2M [Also in Division A5] A fire-operable safety vent closing an aperture in the wall of a building comprises a panel, shown in Fig. 1 as glazed sash 1, mounted to pivot about a horizontal axis below its centre of gravity, i.e. at hinges 3, 4, spring means 11 urging the upper panel portion outwardly with respect to the building, and electromagnetically controlled locking means 8 normally retaining the panel closed against the spring action. Brackets 7 limits rotation of sash 1 about its pivot axis: Normally energised electromagnet 8 on bracket 9 on frame 2 cooperates with armature 10 on sash 1 to hold the window closed. 8 is de-energised on actuation of a smoke detector. Fig. 2 shows a system in which windows 22, 23, 24 and controlling electromagnets 25, 26, 27 are energised by common busbar 28 which is connected to the output of smoke detector 29 energised by mains leads 30. 29 curtails output current in the presence of smoke. (For Figures see next column)
Patent GB-1341380-A (GB)
Title: Apparatus for the solid to gaseous conversion of material  which sublimes
IPC: B01D7/00
Filed: 1971-04-19
Abstract: 1341380 Subliming solids UNITED KING- DOM ATOMIC ENERGY AUTHORITY 19 April 1971 [11 May 1970] 22944/73 Divided out of 1341379 Heading BIB Apparatus suppling vaporised UF6 for conversion into UO2 in apparatus disclosed in Specification 1,341,379 (Divisions F3-4) comprises a tank 1 enclosing a container 3 having an outlet line 8 with valve 7, and an annular spray pipe 10 supplied with hot water by a steam injector 13 operating in accordance with the pressure of vaporised material in the container. A pressure transducer in line 8 transmits a signal to control an air operated valve in line 15 supplying steam to the injector 13 thus controlling the quantity of water re-circulating from the water 16 collecting in the base of the tank 1. The container is held on its stand 4 by locking bars 5 attached to the tank and is cooled by a cold water annular spray pipe 9.