baber/WOPTO huggingface dataset:
Patent GB-1231126-A (GB)
IPC: C07D493/10
Filed: 1969-11-07
Abstract: 1,231,126. Tetraoxaspiro - (5,5) - undecanes. MERCK PATENT G.m.b.H. 7 Nov., 1969 [7 Dec., 1968], No. 54676/69. Heading C2C. [Also in Division C3] The invention relates to tetraoxaspiro- (5,5)-undecanes of the general formula in which R is R<SP>1</SP>-X-A-, A is a straight chained or branched alkylene group containing up to 4 carbon atoms, R<SP>1</SP> is an alkyl group containing from 2 to 21 carbon atoms or -(CH 2 ) n -COOR<SP>2</SP>, R<SP>2</SP> is an alkyl group containing up to 18 carbon atoms, n is 1, 2 or 3 and X is O or S. The compounds may be prepared by (a) reacting pentaerythritol with an aldehyde of the formula RCHO, or (b) a tetraoxaspiro-(5,5)-undecane of the formula in which A<SP>1</SP> is an alkenyl group corresponding to the radical A and containing up to 4 carbon atoms or the group AZ, and Z is an OH group which may, if desired, be reactively esterified, with a compound of the formula R<SP>1</SP>XH. Many compounds claimed per se.
Patent GB-1232101-A (GB)
IPC: G03D5/04
Filed: 1968-06-28
Abstract: 1,232,101. Photographic processing apparatus. AGFA-GEVAERT A. G. June 28, 1968 [June 30, 1967; March 22, 1968], No.30972/68. Heading G2A. Photographic sheet film is fed horizontally through successive chambers 10, 11, 12 of a processing apparatus by means of roller pairs at the entrance to and exit from each chamber, there being means arranged within each chamber adjacent the exit thereof, for directing jets of developer, fixer or washing liquid respectively to impinge upon the upper and lower surfaces of film, the jets being inclined to that liquid flows along the film surface in the opposite direction to the direction of movement of the film. As shown, each chamber 10, 11, 12 is formed of two parts having adjacent corrugated surfaces defining a path for the film therebetween. The jets are emitted through apertures (17) Fig.2  (not shown) in flanks of the corrugations Liquid is pumped from the appropriate section of a tank 1 in which the chambers are supported, to each part of the chambers. A drying station is provided downstream of chamber 12. In another embodiment, Fig. 3-5 (not shown), the means for directing the jets comprises a slot nozzle extending across each part of the chamber, at least one side of each slot being defined by a member which is movable for adjustment of slot width.
Patent GB-1233280-A (GB)
IPC: F16D21/06
Filed: 1969-10-20
Abstract: 1,233,280. Friction clutches. FICHTEL & SACHS A.G. 20 Oct., 1969 [22 Oct., 1968], No. 51362/69. Heading F2C. In a double friction disc clutch wherein presser plates 2, 4 are urged apart by a diaphragm spring 3 to clamp driven discs 5, 6 against an end plate 1 of a clutch cover 31 and against a driving flywheel 30, the presser plates are connected to the clutch cover 31 by flexible tangential straps 18, 21 secured by bolts 35, 36 to the cover 31 at axially and peripherally staggered points 20, 23. The clutches are disengaged by radial release levers 12, 14 respectively connected by compression and tension rods 8, 15 to the presser plates 2, 4. A screw 10 carried by the lever 12 and engaging the rod 8 may be adjusted to compensate for wear
Patent GB-1239531-A (GB)
IPC: B65D1/02
Filed: 1970-02-03
Abstract: 1,239,531. Blow-moulding. CONTINENTAL CAN CO. Inc. 3 Feb., 1970 [14 April, 1969], No. 5167/70. Heading B5A. [Also in Division B8] In a method of blow-moulding a plastics, e.g. polyethylene, bottle having an integral bottom comprising first wall portions 22 conforming to the contour of a hemisphere and alternating with second wall portions 23, which define downwardly-projecting hollow feet, the end of an extruded parison forming the bottom is nipped closed between opposing die parts to weld said end along an arcuate line 238. The arcuate weld-line forms a central segment of a semi-circular bottom wall profile 24 in the plane of the weld whenthe parison is blown and is said to avoid flaws, stresses, embrittlement, and changes in bottom wall thickness. Figs. 6-14 (not shown) illustrate modified bottom wall constructions.
Patent GB-1252086-A (GB)
IPC: G02B9/34
Filed: 1969-11-03
Abstract: 1,252,086. Optical objectives. POLAROID CORP. Nov. 3, 1969 [Nov.7, 1968], No. 53813/69. Heading G2J. A four-element objective comprises four axially aligned air-spaced elements arranged from the long conjugate as a first convergent element I, a second divergent element II, a third divergent element III of bi-concave form and a fourth convergent element IV, the overall length of the lens not exceeding one eighth of the focal length of the lens and the ratio of the minimum Abbe v value for the first and fourth elements to the maximum Abbe v value for the second and third elements not exceeding 1À2, and the Petzval sum for this objective not exceeding 0À225. The first element I is movable to permit focussing. It is preferred that the second surface of the first element has a radius of curvature of a numerically greater value than twice the focal length of the objective. Also it is preferred that the index of refraction of the rear element is substantially greater than the index of refraction of the front element. Optical data is given for six examples of such objective lenses.
Patent GB-1256861-A (GB)
IPC: B22C3/00
Filed: 1967-10-27
Abstract: 1,256,861. Mould lining materials. J. W. WILLIAMSON. 27 Jan., 1969 [27 Oct., 1967], No. 48931/67. Heading B3F. [Also'in Divisions C3 and F4] When casting metals, e.g. steel, A1 the mould or runners are lined with impurities eliminated during the pretreatment of bauxite during A1 processing to protect them against the action of molten metal. The impurities are a red mud or red clay (obtained by decanting or filtering the red mud) that are mixed with water to form a viscous coating mixture which is brushed on to the moulds or runners to be coated. When coating cast iron ingot moulds, the moulds are cleaned, brushed with the coating mixture and heated to dry off the coating. The coating facilitates release of the cast ingot from the mould and improves the ingot surface.
Patent GB-1258031-A (GB)
IPC: F16K5/06
Filed: 1970-05-20
Abstract: 1,258,031. Valves. CAMCO Inc. 20 May, 1970 [27 Oct., 1969], No. 24520/70. Heading F2V.  An orifice valve assembly as described in Specification 969,440 is provided with a second stem 40 located in a recess 42. A groove (52), (Fig. 6, not shown), in the housing 12 enables the plug valve to be easily assembled. When a change of orifice plate 18 is required the plug is turned 90 degrees from the position shown in Fig. 1 by the gear-wheel 36 and the cover 33 removed to expose the plate 18. In this position, the channels 60 in the plug allow continuation of the flow in the pipeline.
Patent GB-1258699-A (GB)
IPC: B64C23/00
Filed: 1970-05-22
Abstract: 1,258,699. Deflecting propulsion jets. ROLLS ROYCE Ltd. 22 May, 1970, No. 24833/70. Heading B7G. A gas turbine engine has thrust deflecting means mounted at or adjacent its downstream end, these comprising a framework of guide vanes movable from an inoperative position out of the efflux to an operative position in the efflux wherein they deflect a portion only of the efflux in a direction outwardly of the engine axis, the remainder of the efflux being undeflected. As shown in Fig. 2, a cowl 30 fitted on one side of the engine adjacent the exhaust nozzle 18 comprises a plurality of guide vanes 32 held spaced apart by a framework 34. The cowl 30 is pivotally mounted at 36 either to the outer casing of the engine or to a fixed structure forming part of the bay or nacelle in which the engine is mounted. Movement of the cowl 30 to and from the operative position is obtained by actuation of a ram 40. Guide vanes 32 are curved so as to deflect efflux away from the engine axis when the cowl 30 is in the operative position. The effect of the deflected thrust is enhanced because the exhaust nozzle 18 has a radially inwardly directed efflux path and consequently the efflux which exhausts from that part of the nozzle diametrically opposite the cowl 30 is exhausting in a direction across the engine axis, thus positively adding to the deflected thrust effect. The thrust deflection can be utilized to give assistance to the wings of an aircraft for the lifting or lowering of the aircraft so as to give it short take off and landing capability.
Patent GB-1258720-A (GB)
IPC: B29C48/30
Filed: 1970-02-13
Abstract: 1,258,720. Producing plastic netting. JOHNSON & JOHNSON. 13 Feb., 1970 [14 Feb., 1969], No. 7109/70. Heading B5B. Plastic netting is produced by heating a thermoplastic film to a temperature of from 15 to 40 C. above its melting point, embossing the heated film with a resilient embossing surface to form a pattern of openings in the hot film whilst simultaneously gripping the embossed film in such a fashion that it remains in contact with the resilient embossing surface and then removing the film from the embossing surface whilst simultaneously stretching the embossed film in the direction of its length.  Preferably the film is heated by passage around a heated roller and then embossed at the nip between this roller and an embossing roller. This embossing roller has a surface of a resilient material, preferably rubber, with the desired embossing pattern engraved in it and runs at a speed, relative to the heated roller, so that just sufficient plastic accumulates at the nip to fill the engraving on the embossing roller with no excess. The embossed film is removed from the embossing roller and simultaneously stretched to from 1À1 to 1À2 times its original length by means of a pair of nip rollers. The pressure at the nip between the heated and the embossing rollers deforms the resilient surface of the embossing roller to some extent, and this deformation with the consequent reformation, enables the embossing roller to grip the embossed film firmly. The process may be used with any of the wellknown thermoplastic materials in particular, polyamides, polyesters and polyolefines.
Patent GB-1259025-A (GB)
IPC: F25B39/02
Filed: 1969-03-27
Abstract: 1,259,025. Refrigerating. G. BAUKNECHT, G. BAUKNECHT, and G. BAUKNECHT. 27 March, 1969 [28 March, 1968; 4 Nov., 1968], No. 16152/69. Heading F4H. In a two-compartment refrigerator having separate, serially-connected freezer and storage evaporators, the latter is of plate-form and composed partly of plastics, e.g. polystyrene or P.V.C. The system is cycled so that the storage evaporator defrosts naturally during each switch off phase. The evaporator may comprise a serpentine tube 32 connected by a conducting compound 30 to a channel formed in an aluminium plate 27, the latter being secured to a plastics plate 26. An alternative profile for the aluminium plate is illustrated in Fig. 5 (not shown). Plate 27 may be laminated with a central metal layer (Fig. 7, not shown). The evaporator of Fig. 13 comprises a plastics tube 74 in contact with an aluminium sheet 75 and located between two plastics layers 72, 73. The tube may alternatively be embedded within a single sheet of plastics (Figs. 9 and 10, not shown).
Patent GB-1259525-A (GB)
IPC: H01L21/223
Filed: 1969-10-29
Abstract: 1,259,525. Semi-conductor devices. TOKYO SHIBAURA ELECTRIC CO. Ltd. 29 Oct., 1969 [31 Oct., 1968], No. 52930/69. Heading H1K. A Group VI element such as S or Se (#M<SP>11</SP>) is diffused into a III-V (MM<SP>1</SP> or M(M<SP>1</SP> 1 ) 1-x (M<SP>1</SP> 2 ) x ) compound semi-conductor body from a solid diffusion source containing proportions of M, M<SP>1</SP> and M<SP>11</SP> which lie within the region defined by the straight lines connecting MM<SP>1</SP> or M(M<SP>1</SP> 1 ) 1-x (M<SP>1</SP> 2 ) x , M 2 M<SP>11</SP> 3  and MM<SP>11</SP> in a triangular plot representing atomic percentages in the M-M<SP>1</SP>-M<SP>11</SP> ternary system. In an example S is diffused into p type GaAs, which may be masked with SiO 2  or SiN, using a sealed quartz tube heated to 930-940‹ C., the diffusion source comprising equal parts by weight of powdered GaAs, Ga 2 S 3  and GaS. Open tube diffusion may also be used. Diffusion of Se into GaP or InP is also referred to and other III-V compounds mentioned are GaSb, GaAs 1-x Sb x , GaAs 1-x P x , InAs 1-x P x , AlAs, A1P and InAs. The invention is applicable to diodes or transistors, and the junction produced by the diffusion may be of the n-n or n-i types.
Patent GB-1266639-A (GB)
IPC: G03C5/26
Filed: 1970-10-16
Abstract: 1,266,639. Phenazine derivatives. FUJI PHOTO FILM CO. Ltd. 16 Oct., 1970 [17 Oct., 1969], No. 49323/70. Heading C2C. [Also in Division G2] 1-Phenazinecarboxylic acid is made by heating anthranilic acid with nitrobenzene in the presence of KOH. 5 - Benzo - [α] - phenazinesulphonic acid is made by heating 2-nitroso-1-naphthol-4-sulphonic acid with o-phenylene diamine in acid conditions.
Patent GB-1288521-A (GB)
IPC: F23D14/42
Filed: 1971-01-11
Abstract: 1288521 Valves B E ETTER 11 Jan 1971 [12 Jan 1970 5 June 1970] 1202/71 Heading F2V [Also in Division F4] A valve for simultaneously controlling the flow rates of oxygen and fuel gas to a cutting torch (see Divisions F3-F4) has a shaft 36 rotatably mounted in a cavity 34 of a valve block 32 and provided with a skirt 38 having upper and lower portions 40, 42 each provided with a series of openings 44, 48 of graduated sizes, the openings 44 being graduated in size in the opposite sense to the openings 48 around the circumference of the skirt 38, the openings registering with bores 52 and 54 respectively. The gases are fed into two chamber portions 50; 46 from bores 60, 56 and the valve is adjusted by manually rotating indicator knob 64 to engage detent ball means 66 in one of a series of grooves (68) in the upper surface of plate 62. Gas flow to the bores 56, 60 and to an additional oxygen feed line by-passing the control valve is adjusted by three identical further valves 112, (112<SP>1</SP>), (112<SP>11</SP>), each as shown in Fig. 5, gas being admitted through bore 108 into bore 102 when the valve is open. Each valve is normally closed by spring 92 but on the engagement of a trigger lever 132 with valve plunger 84 opens to permit gas flow.
Patent GB-1289972-A (GB)
IPC: F28F9/02
Filed: 1969-12-11
Abstract: 1289972 Tubular heat exchangers BABCOCK & WILCOX Ltd 11 Dec 1969 [11 Dec 1968] 60583/69 Heading F4S In a heat exchanger serving as an air heater wherein a plurality of tubes 2 extend from a tube plate 1 into a passage for fine gases, the side of the tube plate remote from the passage is provided with a layer of material of thermal conductivity less than that of the tube plate. As shown, the layer comprises concrete cladding 7 with a rendered surface 8; alternatively it may comprise stagnant air maintained in position by a screen. The tubes 2, which may be glass or metallic with an inert coating, extend through circular apertures 3 and concentric stub pipes 4 and are secured in position by annular fibreglass seals 5. An inert coating 9 covers the inwardly facing tube plate surface. In operation, flue gases flow across the tubes in direction A and air to be heated flows through the tubes in direction B. The insulation arrangement of the invention serves to inhibit transfer of heat from the tube plate to the air and so ensures that the temperature of the tube plate remains above the dew point of the flue gases.
Patent GB-1290277-A (GB)
IPC: C07D215/18
Filed: 1971-04-19
Abstract: 1290277 5 - Phenyl - 1,9 - alkylene - 1,4- benzodiazepin-2(3H)-ones A H ROBINS CO Inc 19 April 1971 [14 April 1970] 26652/71 Heading C2C Novel 5 - phenyl - 1,9 - alkylene - 1,4 - benzodiazepin-2(3H)-ones of the general formula wherein R is a hydrogen or chlorine atom and n is 1, 2 or 3, having anticonvulsant activity, are prepared by reaction of an N-bromo-acetyl compound of the general formula with ammonia in an alkanol solvent or with an alkyl glycinate. N-bromoacetyl compounds of the second general formula above are prepared by reaction of a ketone of the general formula with bromoacetyl bromide. Ketones of the third general formula above are prepared (a) by reaction of a heterocyclic amine of the general formula with oxalyl chloride, treatment of the resulting acid chloride of the general formula with aluminium chloride, with heating, followed by hydrolysis with ice-water (when the acid chloride is not spontaneously cyclized), oxidation of the resulting dione of the general formula with hydrogen peroxide in a basic aqueous solution and reaction of the resulting carboxylic acid with phenyllithium; (b) treatment of a heterocyclic amine of the fourth general formula above with sodium nitrate, conc. HCl and ice, treatment of the resulting nitroso compound of the general formula with zinc and acetic acid, reaction of the resulting amine of the general formula with phenylacetone and sodium acetate in acetic acid, and treatment of the resulting heterocyclic amine of the general formula with ozone in acetic acid; and (c) reaction of a ketone of the general formula with benzoyl chloride in the presence of zinc chloride, followed by acid hydrolysis.
Patent GB-1290365-A (GB)
IPC: C07C319/20
Filed: 1969-09-08
Abstract: 1290365 Substituted urea salts E R SQUIBB & SONS Inc 8 Sept 1969 [16 Sept 1968] 44246/69 Heading C2C Novel, therapeutic salts of compounds I where X is H, halogen, CF 3 , NO 2 , NH 2 , dialkylamino, acyloxy, OH, alkyl, alkoxy, alkylthio and alkanoyl, n is 1 to 4, R is H, alkyl, cycloalkyl, monocyclic aryl or alkyl-aryl, R<SP>1</SP> and R<SP>2</SP> are H, alkyl, cycloalkyl, optionally substituted monocyclic aryl, aralkyl or together with the adjacent nitrogen comprise 5 to 7 membered monocyclic heterocyclic radical of less than 13 carbons, A is alkylene, B is an amino or substituted amino (including heterocyclic) group and Y is O, S, SO, SO 2  or CH 2 , are obtained by reacting II with an alkali metal cyanate, an isocyanate R<SP>2</SP>NCO, a carbamoyl chloride CICONR<SP>1</SP>R<SP>2</SP>, or with phosgene and thereafter with NHR<SP>1</SP>R<SP>2</SP> ; acid addition and quaternary salts are then formed by standard methods.
Patent GB-1295535-A (GB)
IPC: E06B3/60
Filed: 1970-03-20
Abstract: 1295535 Glazing window &c frames; drainage ALKONO ALUMINIUMKONSTRUKTIES NIJHUIS OOSTERBEEK NV 20 March 1970 13618/70 Headings E1J and E1R Glazing or panelling 7 is secured by a single glazing strip 8 in a hollow metal frame 1 which is provided with drainage apertures 21, 22, 23 in its cross-members 4, 6 to communicate with the external atmosphere, elastomeric sealing strips 12, 18 also being arranged on each side of the glazing 7, the outer sealing strip 12 being shaped to engage the edge of the glazing strip 8, and a T-section rib 5 being formed on the cross-member 4 to support the glazing 7. As shown, neoprene supporting blocks 11 are arranged on the member 4 between the apertures 22 and between the T-rib 5 and a ledge 10, and further neoprene elements 9 directly carrying the glazing 7 bear on the rib 5, ledge 10 and blocks 11. The sealing strips are also of neoprene, and the outer strip 12 is formed with two longitudinal lips 13, 14 to engage round the edge 15 of the snap- or metal glazing strip 8. The hollow metal fixed frame 25 is similarly constructed with drainage apertures 30, 31, and rain &c penetrating between the movable frame 1 and fixed frame 25 drains down to the sill 33.
Patent GB-1297421-A (GB)
IPC: C07C255/04
Filed: 1970-02-20
Abstract: 1297421 Dimerization process and intermediates therefor HALCON INTERNATIONAL Inc 20 Feb 1970 [23 June 1969] 8324/70 Heading C2C Adipic acid and its derivatives of the formula wherein R is a hydrogen atom or a C 1-4  alkyl group; and A is a group of the formula -C#N, -COOR, -COR or -CONR 2 , R being a hydrogen atom or a C 1-4  alkyl group; are produced by reacting #-halopropionic compounds of the formula wherein X is a chlorine, bromine or iodine atom; with metallic iron or nickel at 50 to 250 C. in the liquid phase. The #-halopropionic compounds, may be obtained by reacting the corresponding acrylic compounds, with hydrogen halides (HX).
Patent GB-1302532-A (GB)
IPC: E03D5/016
Filed: 1969-07-14
Abstract: 1302532 Chemical closets PORTASILO Ltd 30 June 1970 [14 July 1969] 35373/69 Heading E1C A cabin, hut or like accommodation unit housing a chemical closet comprises a rectangular or square base structure 5, which forms a unitary tank, filter, pump and sanitary pan to provide a flushing, recirculating chemical fluid system, and which also forms the floor of the accommodation unit, angle irons (42, Figs. 2 and 3, not shown) fixed around the top edges of the base structure, side wall panels I bolted on to the angle irons, a rear panel 2, a front panel 3 equipped with a door 4, and a translucent roof 6 adapted to be bolted to the tops of the panels 1-3. Transport of the unit is facilitated by the provision of apertured lugs 7 at the four corners of the base structure for the reception of two scaffold poles which are passed horizontally through the lugs on each side of the structure 5 whereupon the closet can be carried by four men, two to each pole. The sanitary pan 8 is mounted on the top plate 9 of the base structure 5 and discharges through an aperture in this plate into a compartment 25 which is bounded on two sides by an L shaped filter screen 24, the pump, which comprises a cylinder 13, being installed in a compartment 26 formed on the other side of the screen 24. The pump is operated by a handle 10 pivoted on a pillar 12 and linked to a piston (15, Figs. 2 and 3, not shown) within the cylinder, the piston incorporating a one-way valve whereby filtered fluid may be pumped via conduit 18 to a flushing ring of the pan 8. Arm 17 of the linkage between the handle 10 and the piston is embraced by a forked end of a lever 19 which carries a paddle 20 within the compartment 25, so that the contents of compartment 25 are stirred simultaneously with the pumping action. The contents of the base structure 5 may be emptied by means of a flexible pipe section 28 extending in an upwardly curved arc between an outlet pipe 30 and its open end which is normally just above the liquid level. Emptying is effected by removing a cap 33 to gain access to a handle 31 which when pulled rocks a lever 35 which is connected to the flexible pipe by a strap 34, as a result of which the pipe is bent downwardly to dispose it near the bottom of the compartment 25. An overflow pipe (40, Fig. 2, not shown) connects with the outlet pipe 30, and a drain pipe extends between an aperture in the plate 9 and a drain outlet 41. A compartment 39 is formed in one corner of the structure 5 for a heater to prevent freezing of the liquid.
Patent GB-1303602-A (GB)
IPC: H04R1/26
Filed: 1971-03-12
Abstract: 1303602 Loud-speakers A SHACKMAN 12 March 1971 6649/71 Headings H4J and H4X  Aloud-speaker assembly comprises at least two identical first loud-speaker units 3, 4 (Fig. 1) or 12, 13, 14, 15, 16 (Fig. 4) and a second, smaller, loud-speaker unit 2 or 2c. In one arrangement, such as shown in Fig. 1, the axis of the smaller loudspeaker unit 2 is disposed in a common plane with the axes of the two first loudspeaker units 3, 4 and is symmetrically spaced from their axes. The axes are all parallel. In another arrangement, such as shown in Fig. 4, the axis of the smaller unit 2c is substantially equally spaced from the axes of the first loudspeaker units 12, 13, 14, 15, 16, disposed in a substantially symmetrical arrangement. Figs. 2 and 3 (not shown) illustrate clusters of four and three first loud-speaker units. The first loud-speaker units are preferably high-excursion small diameter bass units. The smaller units are of electromagnetic or electostatic type. The housing 1 (Fig. 1) contains conventional sound absorbing material or is of labyrinth construction.