baber/WOPTO huggingface dataset:
Patent GB-1252345-A (GB)
IPC: G03B21/11
Filed: 1969-02-14
Abstract: 1,252,345. Optical projection apparatus. EASTMAN KODAK CO. Feb.14, 1969 [Feb.15, 1968], No.8207/69. Heading G2A. An optical projector is provided with a projection lens for projecting a transparency as a whole and a second lens moveable on to the projection axis to produce a magnified image of a portion of the transparency, there being a focus compensating element coupled to the second lens for movement into the optical axis when the second lens to inoperative. A conventional projector comprising lamp 421, condenser 422, projection lens 424 and screen 427 has, in addition, diverging lens 425 and apertured plate 454 mounted on rod 450 and swing- able into the optical axis. Diverging lens 425 is surrounded by a mask to prevent overlap of difficulty magnified image parts and plate 454 is provided with an aperture 455 through which the light passing through lens 425 also passes to bring the focal planes of the two imaging systems into alignment at screen 427. A neutral density filter 457 may be placed over the solid parts of plate 454 to compensate for the difference in image brightness.
Patent GB-1252867-A (GB)
IPC: G01P1/11
Filed: 1970-06-01
Abstract: 1,252,867. Speedometers; indicating apparatus GENERAL MOTORS CORP. June 1, 1970 [June 2, 1969], No.26282/70. Headings G1J and G1K. An eddy-current speedometer comprises a drag cup 26 secured to a spindle 16 on which a needle 42 is rotatably mounted, the cup being driven by magnetic coupling between it and a rotary magnet 24 driven by a device, the speed of which is to be measured, and the needle 42 being journalled on the spindle 16 and inter-connected therewith by a spring 46. A hub 44 at the end of the spindle 16 is machined to permit free rotation of the needle 42. A hair spring 46 for damping undesired oscillation at the natural frequency of the magnet is attached at one end to the hub 44 and has an elongated arm 50 which is attached to the needle 42 at a distance from the spindle 16.
Patent GB-1266283-A (GB)
IPC: F16B12/40
Filed: 1970-04-23
Abstract: 1,266,283. Structural joints. A. W. HAKANSSON. 23 April, 1970 [9 May, 1969], No. 19427/70. Heading E1K. [Also in Divisions A4 and F2] A hollow connector 2, Fig. 1, comprising at least two mutually perpendicular arms whose walls are flexible but whose longitudinal edges are rigid, is coated with a plastics layer 2' forming beads 6 along the edges of the arms. The plastics layer 2' may also provide ridges 7, 8, for tight engagement with the inner surfaces of tubes 5 to be connected. The connector 2 is made of metal, plastics or glass fibre. A central boss 4 is engaged by the ends of the tubes 5. In a modification, a clamping plate 8, Fig. 5, is threaded on a screw 7' mounted in the boss 4 of a connector 2. The clamping plate 8 is slipped into a bracket rail 9 with flanges 10, which firmly engage the boss 4 upon tightening the clamping plate onto its screw 7'. The connector can be used to assemble furniture, such as desks, or advertizing stands. The screw 7' can be used to couple two connectors, e.g. to connect chairs or tables in an assembly hall.
Patent GB-1266825-A (GB)
IPC: E04G19/00
Filed: 1970-05-13
Abstract: 1,266,825. Floor shuttering. MATERIEL SPECIAL D'ENTREPRISES. 13 May, 1970, No, 23133/70. Heading E1S. [Also in Division F2] Compressed air valve for removal of shuttering used in the building industry e.g. in making ribbed ceilings with moulding honeycombs, comprises a body 4 for insertion into an aperture in the shuttering plate 1 and having a flange 5 which abuts the inside of the plate. A screw-threaded hollow cylindrical portion of the body carries a retaining nut 2 and is adapted for connection to a compressed air line e.g. through a connector 11. A valve closure member 8 is biassed to close an opening 7 through the flanged end of the body. As shown, the closure member has, a conical head of greater included angle than the conical opening 7. The flange is recessed flush with the inside of the plate.
Patent GB-1288815-A (GB)
IPC: C07C2/30
Filed: 1969-11-24
Abstract: 1288815 Preparation of wax-range olefins ESSO RESEARCH & ENG CO 24 Nov 1969 [20 Dec 1968] 57364/69 Heading C3P Wax-range (i.e. C 22 -C 200 ) linear alpha olefins are prepared by polymerizing ethylene, in the presence of a non-polar diluent, at a temperature and pressure sufficient to oligomerize the ethylene while suppressing copolymerization reactions, the temperature being not more than 50 C., in the presence of a catalyst which is the reaction product of (i) TiX 4 , TiX 3 OR<SP>1</SP> or TiX 3 . OOCR<SP>1</SP> where X is Cl or Br and R is alkyl, cycloalkyl, aryl or aralkyl, (ii) an aluminium alkyl halide chosen so that the resulting organoaluminium component of the reaction product has the formula AlR n Z 3-n , where R is alkyl, aralkyl or cycloalkyl, Z is Cl, Br or I and n is less than 2, and (iii) PYY<SP>1</SP>Y<SP>11</SP>, where Y is alkyl, cycloalkyl, or alkoxy and each of Y<SP>1</SP> and Y<SP>11</SP> is alkyl, cycloalkyl, alkoxy or hydrogen. Component (iii) is present in an amount corresponding to 50-300 mole per cent of the amount of component (i) and is preferably a tertiary phosphine or phosphite. Components (i) and (ii) are mixed under conditions which minimize the reduction of the former, component (iii) preferably being added to one of them beforehand. Exemplified catalyst components are (i) TiCl 4 , (ii) AlEtCl 2  or AlEt 2 Cl+AlEtCl 2 (1 : 2) and (iii) tributylphosphine.
Patent GB-1290468-A (GB)
IPC: C07D243/20
Filed: 1971-07-09
Abstract: 1290468 Benzodiazepines UPJOHN CO 9 July 1971 [20 July 1970] 32400/71 Addition to 1243953 Heading C2C Compounds of the general formula (R = allyl; R 1  = H, R 2  = Cl, F or R 1  = NO 2 , R 2  = Cl) and their acid addition salts are prepared by the process of the parent Specification from the required 1,3-dihydro-1,4-benzodiazepine-2-thione and allyloxyamine. The above compounds are sedatives and tranquillizers, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1295370-A (GB)
IPC: F01D5/18
Filed: 1970-10-07
Abstract: 1295370 Turbine blades DAIMLER-BENZ A G 7 Oct 1970 47704/70 Heading FIT An air cooled turbine rotor blade comprises a solid core 16 provided with longitudinal and transverse ribs 17, 18 against which bears a surrounding thin walled shell 19 to define cavities 20 communicating with each other in the longitudinal direction of the blade through passages 21 cut in transverse ribs 18. The cavities 20 communicate with recesses 23 in a root platform 15, the recesses being covered by a plate (24), Fig.2  (not shown) and supplied with cooling air from within the turbine rotor through passages 26. Passages 27 supply cooling air directly to leading and trailing edge chambers 30, 31. Air leaves the blade through apertures 32 in shell 19.
Patent GB-1305845-A (GB)
IPC: F16H61/42
Filed: 1971-06-17
Abstract: 1305845 Hydraulic transmission control VERLINDE SA 17 June 1971 28422/71 Heading F2D [Also in Division G3] A control circuit for controlling the displacement of a variable stroke pump 2, and for controlling the direction of rotation of a motor 26, comprises a main two-way distributer 6, having a spool valve movable in response to fluid supplied to one of two chambers 6d and 6e, an auxiliary pump 3 connected to said chambers through an auxiliary two way distributer 22, its spool valve movable by a rod 21 attached to a lever 9 and a further control distributer 20 connecting the output of the auxiliary pump 3 to either side of a piston 11a, connected to a rod 11b for varying the displacement of the pump 2. With the control lever 9 in a neutral position the main pump 2 is at its minimum displacement position, and the auxiliary distributer 22 connects the output of pump 3 through a throttle valve 33a to a reservoir 10. A brake 8 on the motor is automatically actuated by the resultant low pressure in the line leading thereto, shown as broken lines. On movement of lever 9 in one direction the spool valve 7 in the control distributer 20 is moved and causes the output from pump 3 to move piston 1la and so increase the pump displacement. Simultaneously the spool valve of auxiliary distributer 22 is moved and causes pressure to be applied to either of chambers 6e and 6d through lines 35 or 34 respectively and so the output from pump 2 (not now zero) is applied to the motor 26. The brake 8 on the motor is automatically released when the pressure in the line leading to it increases (i.e. when distributer 22 starts feeding lines 34 or 35). Valves 31 and 23 limit the pressures in the main and hydraulic circuits respectively. In the movement of piston 11a by the result of movement of the spool valve 7 the distance which the piston moves (and hence the amount the pump is varied) is dependent on the degree of movement of the lever 9 since the piston and valve are interconnected by a lever 17 which causes the valve to close on movement of the piston dependent on the position of the lever 9. A unit 27 may be included to aid the returning of the distributer 6 to its neutral position upon the lever 9 being returned to its neutral position. The lever 9 may be operated manually or automatically. The auxiliary pump 3 acts additionally as a make-up pump.
Patent GB-1306126-A (GB)
IPC: A61M5/31
Filed: 1970-08-17
Abstract: 1306126 Hypodermic syringe J A O'CON NOR 9 Aug 1971 [17 Aug 1970[ 39467/70 Heading A5R [Also in Division Bl] A hypodermic syringe for separately storing two components, e.g. a drug and a diluent, and permitting mixing in the syringe body and dispensing therefrom comprises a syringe barrel 10 with a distal portion 12 to receive a dispensing means, at least two parallel, coextensive channels 17 in the wall of said barrel, a piston 14 slidably mounted within said barrel and of shorter axial length than the axial length of said channels, said piston being able to separate said barrel into two non-communicating chambers, a rupturable hermetic seal 23 of a polymeric material applied to seal the piston to said barrel, said seal being rupturable by rotating said piston, a plunger 16 locked into said piston and extending proximally thereof, a plug 22 at the proximal end of the barrel constructed to permit rotation of at least said plunger in said barrel, a hermetic seal 24 between said plunger and plug, a hermetic seal 25 between said plug and barrel, and at least one of the latter two seals being a rupturable seal of a polymeric material. Operation The syringe is firstly filled by sealing the distal end either by a needle and protective sheath, or by an occlusive cap 26, the sheath and cap being hermetically sealed to the syringe. The component for the forward compartment is then loaded into the syringe through the rear end of the barrel and the piston 14 is then inserted into the barrel either forwardly or rearwardly of the channels. A rupturable hermetic seal 23 is then formed between the piston and the barrel wall. The rearward compartment is then filled with the remaining component and plug 22 is slid forward along the plunger into position just inside the rear opening of the syringe barrel. If a liquid component is to occupy the rear compartment then the compartment is filled followed by insertion of the plunger into the piston, after which the plug 22 is slid into position as before. The joints between the plug and wall of the barrel, and between the plug and the plunger are also hermetically sealed. The syringe is operated by firstly gripping the barrel 10 and plunger 16 and twisting the plunger in a clockwise direction in order to rupture the seal 23 maintaining the piston in the storage position. Depending upon the construction of the plunger 16 and the plug 22. (27), Fig. 5 (not shown), a seal 24 or 25 is also ruptured to permit forward movement of said plunger. The piston is then moved into a position intermediate the ends of each of said channels, Fig. 4 (not shown), marked by scribed lines 18, thus enabling the liquid component to flow via the channels into the compartment containing the drug component. These are then allowed to mix and the injection completed in the normal way. A sleeve 19 is provided as a seal around the barrel in the vicinity of the channels which in the particular extend completely through said wall.
Patent GB-1306539-A (GB)
Title: Heat- and flame-resistant articles of acrylonitrile polymers
IPC: C08F20/44
Filed: 1970-04-08
Abstract: 1306539 Improved acrylonitrile polymer articles STANDARD OIL CO 8 April 1970 16609/70 Heading C3P The heat and flame resistance and impact strength of articles prepared by moulding an oriented (or sheared) acrylonitrile polymer, derived from monomer(s) comprising at least 90% by weight acrylonitrile, at elevated temperature and pressure are improved by heating the polymer, before or after moulding, at a temperature of at least 140 C. but less than 235 C. for a time sufficient to produce an article wherein the polymer has a broad X-ray diffraction band at 5À3 , an ASTM No. D648-264 p.s.i. heat distortion temperature of more than 100 C., a specific gravity above 1À18, a hydrogen analysis between 1À96 and 5À70% by weight, and no 10À75 cm.<SP>-1</SP> infra-red band. The heattreatment step may be conducted in air, in vacuo, or in an inert gas such as nitrogen or helium. Articles which may be produced inelude dishes, cups, trays, tools, handles, knobs, electrical insulators, mounting surfaces, valve packings and brake linings. In examples the polymer is a homopolymer or a copolymer with butanediol-1,4-divinyl ether or ethyl acrylate; these polymers are prepared by polymerization in aqueous media or in bulk in the presence of t-dodecyl mercaptan and an initiator, an emulsifier or polyvinyl pyrrolidone also being present in the aqueous systems.
Patent GB-1317958-A (GB)
Title: Valve
IPC: F16K1/22
Filed: 1970-06-16
Abstract: 1317958 Artificial heart valves J WADA 16 June 1970 28992/790 Addition to 1167329 Heading A5R [Also in Division F2] A one-way artificial heart valve comprises a base member 49 having an aperture the periphery of which is divided into two sections bevelled in opposite directions as at 47, 48, and a valve plate 41 pivotted on an axis not passing through its centre of gravity and having a periphery divided into two sections 45, 46 each being bevelled to complement a respective bevelled section of the base member and the pivotting axis being defined by interlocking notches in the valve plate and base member.
Patent GB-1322733-A (GB)
Title: Cigarette making machines
IPC: A24C5/39
Filed: 1969-06-24
Abstract: 1322733 Cigarette-making machines MOLINS Ltd 24 June 1970 9314/73 Divided out of 1322732 Heading A2C The Specification describes the same machine as that described in Specification 1322732 but the claims are directed to a cigarette-making machine comprising means for showering tobacco onto one run of an air-pervious band to form a tobacco stream on the band which is held on the band by suction, and including a trimmer which trims away part of the tobacco stream while the tobacco stream is being carried along a second run of the band after passing round a pulley, the trimmed tobacco stream being then transferred to a continuous moving web in which it is enclosed to form a cigarette rod.
Patent GB-1323693-A (GB)
Title: Ropes
IPC: B29C65/06
Filed: 1969-09-15
Abstract: 1323693 Spin-welding rope ends IMPERIAL CHEMICAL INDUSTRIES Ltd 24 Aug 1970 [15 Sept 1969] 45297/69 Heading D1T Plastics end pieces are attached to plastics ropes, e.g. of polypropyene, by spin welding. The end piece may be internally tapered and rotated at a peripheral speed of its mating surface of 500 ft./min., whilst a rope end is pushed into it, the rotation being stopped when melting has taken place. Rotation is preferably in the direcion of lay of the rope, so that it is not untwisted, and the rope end may have been sealed with a hot-melt adhesive prior to welding. Fig. 1 shows a flanged end-piece, for attachment to other objects. Fig. 2 shows an end piece suitable for whipping. Two ropes may be spliced using a double-tapered sleeve 12 as in Fig. 4, but such splicing necessitates rotating the sleeve in the opposite direction to the lay of one rope end, or rotating at least one entire length of rope, so it is preferred to weld a male connecting piece 13 to one rope end, then simultaneously welding the sleeve 12 to the other rope end and the connecting piece 13.
Patent GB-1327228-A (GB)
Title: Belts
IPC: A41F9/00
Filed: 1970-08-17
Abstract: 1327228 Belt buckles E T SKINNER & CO Ltd 16 Aug 1971 [17 Aug 1970] 39589/70 Heading E2A A quick-release belt comprises a belt strap 1 and a buckle 2 carrying a pivotally movable pin 8 detachably engageable with a hole 9 in the strap when one end 4 thereof is put through the buckle, the other end 12 of the strap being attached to the pin in such a manner that when the end 4 is pulled to effect release the resulting tension in the strap causes the end 12 to apply to the pin a turning moment in a pivotal direction which ensures automatic disengagement of the pin from the hole 9 in the strap and consequent release of the belt. As shown, the strap is passed underneath the buckle cross-bar 6 and the roller 7. Weights 14 having an H-shaped slot are secured to the belt by loop portions 1a, 1b of the strap. The belt may be applied to divers' belts, as shown, and car and aircraft seat belts.
Patent GB-1336364-A (GB)
Title: Roller conveyors
IPC: B65G47/26
Filed: 1971-05-27
Abstract: 1336364 Roller conveyers GEC-ELLIOTT MECHANICAL HANDLING Ltd 26 Mav 1972 [27 May 1971] 17565/71 Heading B8A In an accumulating roller conveyer, an article-supporting roller R1 I is itself supported on pivotally mounted arms R1A of which the rearward portions are engageable with the leading portions of arms R3A supporting a roller R3. The other rollers are similarly arranged and supported. A drive belt B is supported on rollers SI, S2.... In Fig. 3, the roller R1 is depressed into engagement with the belt by an article A1 which is thus conveyed; an article A2 is similarly conveyed. If article A is halted by a stop ST, Fig. 4, article A2 is also halted since all rollers R4-R6 are raised clear of the belt due to the action of the arms R1A-R4A. In Fig. 6, a manually or otherwise operated stop device ST includes cam means 13 which also causes the roller R1 to be lifted clear of the belt B. In a further construction, Fig. 9, the belt is dispensed with and, under the weight of an article the rollers R1 ... are brought into engagement with friction-surfaced drive rollers 22. The article may be propelled directly by a belt (B) which runs between two series of rollers (R1), Fig. 12 (not shown), or there may be belts on either side of a central series of rollers, Fig. 13 (not shown). There may be three or more lines of rollers and driving means between the lines. Chains with friction upper surfaces may replace the belts.
Patent GB-1344305-A (GB)
Title: Gas turbine engines
IPC: F02C9/18
Filed: 1971-11-04
Abstract: 1344305 Gas turbine engines - fan module ROLLS-ROYCE (1971) Ltd 4 Nov 1971 51250/71 Heading F1G The invention relates to a detachable fan module to which a gas turbine engine may be secured, the module comprising in flow series an air inlet 12, a single stage fan 14 mounted on a rotatable shaft 22, at least one row of outlet guide vanes 16, a diffuser duct 18 and at least one row of compressor inlet guide vanes 20. The shaft 22 is supported in bearings 24 in a structure 26 and is connected at its forward end through a ratchet device 32 to a starter motor shaft 28; the shaft 22 is connected at its rearward end through an intermediate shaft 42 to the shaft 46 of the low pressure compressor of the engine 11. The diffuser duct 18 is defined by mutually divergent walls 60, 62 which may move axially with respect to the other parts of the module. The compressor inlet guide vanes 20 are mounted in shroud members 58, 70 which are in sealed engagement with the duct walls 60, 62. Openings 76 provided in the outer wall 62 of the duct are associated with a valve member in the form of a flexible tube 80 whereby the openings may be open (broken line position of the valve member) or closed (full line position of the valve member); the purpose of the openings is to allow excess pressure to be vented. The object of the invention is to permit power of an engine to be increased by "supercharging" the compressor.
Patent GB-1344485-A (GB)
Title: Production of a hard body of a refractory boron-containing  compound
IPC: C22C29/14
Filed: 1972-06-26
Abstract: 1344485 Impregnating refractory boron containing compounds BORAX CONSOLIDATED Ltd 26 June 1972 [1 July 1971] 30844/71 Heading C7D and C7F Hard refractory bodies are made by shaping e.g. pressing, a powder of a refractory metal boride or B 4  C and impregnating the porous body with Si, Cr, Mn, Fe, Co, or Ni by vacuum deposition of the impregnant vapour. The preferred borides are those of Groups IIA, IIIA, IVA, VA or VIA of the Periodic Table e.g. TiB 2 , ZrB 2 , TaB 2 , WB, BaB 6  or LaB 6  and impregnation is effected under an argon atmosphere.
Patent GB-1346515-A (GB)
Title: Apparatus for feeding paper bags or tubes
IPC: B65H7/20
Filed: 1971-12-16
Abstract: 1346515 Feeding sheets HAYASHI & YUKO CO Ltd 16 Dec 1971 58418/71 Heading B8R An apparatus for singly feeding a plurality of flattened bags or tubes comprises an endless conveyer 1 for feeding a shingled pile to at least one feed roll 16 and a lower counter roll 17 with a friction, e.g. rubber surface, the roll 17 rotating through a predetermined angle and thereafter returning to its original position, a friction lever 15 attached to the feed roll 16 to draw the leading bag from the conveyer belt in the nip of the rolls, and an auxiliary feed roll 20 forming a second nip with the roll 16. The nip of the rolls 16, 17 can be adjusted by cam 18 to one bag thickness so that feed of two bags causes a pressure which causes the lower bag to be held by the roll 17 with its limited rotation, while continued rotation of the roll 16 conveys the top bag forwards. Additionally or alternatively double feed through rolls 26, 27 discharging to the processing machine, e.g. a sewing machine causes the rolls to open, operating a switch 28 to stop the apparatus. The roll 27 may have several circumferential grooves in which, e.g. limit switches are provided to perceive slanted bags. A feeler 22 operates a switch 11 to stop the conveyer 1 when the leading bag contacts it. Cam operated pins (23), Fig. 4 (not shown) are moved into the path of the bags to prevent them entering the nip of the rolls except when the friction lever 15 is drawing a bag into the nip. The rear end of a shingled pile is lifted by forks 5, 7, so that a further pile can be placed thereunder from a conveyer 2, stops 13 being lifted in front of the first pile to prevent forward movement when its rear end is lifted.
Patent GB-1349742-A (GB)
Title: Combination burglar and fire alarm systems
IPC: B60R25/01
Filed: 1970-05-29
Abstract: 1349742 Burglar/fire alarms A J PLUMMER 26 Aug 1971 [29 May 1970 16 Nov 1970] 26089/70 and 54390/70 Heading G4N A burglar and fire alarm comprises a control circuit housed in a box 50 having plug-type connections to a bell alarm device B and a flasher lamp alarm device L2 and to a plurality of switch-like contacts 20 and thermal fuses or fire sensors 21, all the said components being arranged in closed circuit connected by lengths 23 of flexible aluminium strip. The strip 23 may have adhesive on one side and be mounted on the walls, &c. of the building and the contacts 20 may comprise a series of dimpled, conductive fingers (15), (17), Fig. 4 (not shown) outstanding from a common strip 18 sprung away from a fixed contact strip (19) mounted in normally closed condition in a door jamb, &c. The control circuit comprises a transistor switching circuit Fig. 2 (not shown) adapted to activate a relay switch to cause the alarms B, L2 to respond to a breaking of the circuit at any point 20, 21 after a delay period to allow an authorized person to de-activate the system by switch S1.