baber/WOPTO huggingface dataset:
Patent GB-1306908-A (GB)
Title: Helicopter rotor assembly
IPC: B64C27/605
Filed: 1971-12-03
Abstract: 1306908 Helicopter rotor assembly SOC  NATIONALE INDUSTRIELLE AEROSPATIALE 3 Dec 1971 [14 Dec 1970] 56183/71 Heading B7W A helicopter rotor assembly comprises an inner annular disc 4 carried by a connection 5 comprising a ring 21 secured to the disc and a ring 29 secured to rotor shaft 1, the rings having opposed axial grooves 25, 28, respectively, Fig. 4, wherein are located balls 33 retained in a cage 34, so that the disc 4 rotates with the rotor shaft but is able to pivot or to move axially relative to it when pitch control means act on annular outer disc 3, which is carried on disc 4 by roller bearings 14, 15, and is held against rotation by an arm 7. The blade pitch control arms E are connected to a toroidal member 17 secured to the disc 4. Covers 35, 36 serve to protect the connection 5 against foreign bodies or loss of lubricant.
Patent GB-1457538-A (GB)
IPC: F21S10/04
Filed: 1973-12-05
Abstract: 1457538 Imitation solid-fuel fires PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 5 Dec 1973 56318/73 Heading F4W The subject-matter of this Specification is substantially the same as that described in Specification 1,457,540, but the claims are concerned with an imitation solid-fuel fire comprising a translucent screen behind which is located a fuel-simulating member that lies at an acute angle to and is supported adjacent a lower part of the screen, a lamp positioned for illuminating a rear side of the screen and a flicker device associated with the lamp, wherein the screen includes a red colour filter material. The screen may be of laminated construction having a front surface of a black or copper-coloured material and a rear surface of the red colour filter material, whereby the colour of the screen changes when the lamp is switched on.
Patent GB-1255500-A (GB)
Title: Camera shutter
IPC: G03B9/34
Filed: 1968-11-28
Abstract: 1,255,500. Camera shutters. NIPPON KOGAKU K.K. Nov.28, 1968 [Dec.8, 1967 (3)], No.56483/68. Heading G2A. A shutter comprises a flexible curtain having one end fixed relative to the exposure aperture; the other end being movable across the aperture by bending the curtain. As shown, two such curtains 2, 2<SP>1</SP> are anchored at C, C<SP>1</SP> to a base-plate 7; curtain 2 being moved to the right in Fig.2 across a plate 1 to open exposure apertures A, A<SP>1</SP> and curtain 2<SP>1</SP> being moved in the same direction to close the aperture. Levers 4, 11 are pivoted to the plate 7 at 13, 14, 15 and have pins 9, 10 locating apertures D, E in extensions of a member 3 attached to the curtain 2, which is moved by actuating the end F of lever 4. Levers 5, 12 pivoted to plate 7 at 14, 17 and to each other at 16 prevent buckling of the curtain. A damper 6 on lever 5 reduces curtain vibration. A similar lever system is provided for the curtain 2<SP>1</SP>. The curtain may be pre-stressed to prevent buckling in which case levers 5, 12 may be omitted.
Patent GB-1333313-A (GB)
Title: Water-soluble reactive metal complex monoazo dyestuffs and a  process for their manufacture
IPC: C09B62/515
Filed: 1971-12-06
Abstract: 1333313 Reactive metallized monoazo dyes FARBWERKE HOECHST AG 6 Dec 1971 [12 Dec 1970] 56542/71 Heading C4P New water-soluble reactive metallized monoazo dyes of formula wherein A is a naphthalene or pyrazolone coupling component residue, R is a C 1-4  alkyl or alkoxy group, M is a Cu, Co, Ni or Cr atom, X is a -CH= CH 2  or -CH 2 CH 2 Y group, Y is OH or a radical which can be split off by an alkaline agent and n is 1 or 2 are prepared by metallizing, including oxidative coppering and de-alkylating metallization, the appropriate monoazo dyes. The dyes are used to colour natural and synthetic fibres, in particular cellulose fibres by the usual reactive dyeing processes in red, blue and brown shades.
Patent GB-1397575-A (GB)
Title: Petrol dispensing
IPC: F16L3/015
Filed: 1972-12-07
Abstract: 1397575 Dispensing petrol GILBARCO Ltd 16 Nov 1973 [7 Dec 1972] 56582/72 Heading A4T A hose support for a petrol dispensing pump 12 comprises a resiliently flexible arm 1 incorporating at least one flexible petrol conduit 3, means 11 for connecting the arm 1 to the pump casing and means 18 for coupling to at least one delivery hose 17. The arm 1 may comprise rods 4, Fig. 6, or strips 44, Fig. 11, of spring steel, held within a casing 9. Spacer tubes 26, Fig. 9, on locating pins 27 may limit flexing to prevent permanent deformation.
Patent GB-1373950-A (GB)
Title: Shearing of metal billets into pieces of equal length
IPC: B23D23/00
Filed: 1971-12-06
Abstract: 1373950 Feeding and shearing billets LAMBERTON & CO Ltd 13 Nov 1972 [6 Dec 1971] 56644/71 Heading B3W In a method of shearing billets into pieces of equal length, the discard is sheared from the leading end of a billet diminished by such shearing so as to leave a piece of length equal to the required length L, Fig. 2. A billet supplied from a transfer bank 22 is fed by driven roller conveyer 21 through a reciprocatory shear comprising blades 12, 14 a holddown 15 and a counterhold 16 against an adjustable gauging stop 23 and sheared into pieces of length L until the trailing end of the billet trips a switch 32. The stop produces a signal each time the billet engages it. Actuation of the switch 32 causes an hydraulic cylinder 31 to move a pusher 30 down behind the billet trailing end. A carriage 25 supporting the pusher 30 is located so that the pusher when fully extended, lies at a distance from the front stop 23 of 2 x L + a small constant C, Fig. 2. A trip bar 33 moves with the pusher for engaging a trip switch 34, when the pusher is spaced from the stop 23 by 2 x L + the minimum length which can be sheared by the machine, i.e. the minimum discard length Dmin. A switch 35 is positioned to be tripped by the bar 33 when the pusher 30 is fully extended from its actuating cylinder 29. In operation, if the actual discard is of a length (d) Figs. 3-5 (not shown), less than the length Dmin, the trip bar trips the switch 34 and at the next signal from the stop 23 a piece L is sheared leaving a piece L + d, the pusher 30 is retracted, the cyliner 29 is raised, a deflector 18 is set to direct discharge into a discard bin 19 and the end of a new billet knocks the discard into the bin 19. If the actual discard is at least the minimum discard length Dmin, the switch 34 is not tripped, the penultimate piece L is sheared, the pusher is extended to its fullest amount causing switch 35 to be tripped and the motor 28 driving carriage 25 to slow down for the predetermined constant distance C to place the billet accurately for shearing of the discard D. Should the discard remain balanced on the counterhold 16 the carriage 25 is advanced to cause the pusher 30 to knock the discard into the bin 19. The operation described may be controlled by a computer; for hot shearing, the switch 32 may be omitted and the cylinder 31 operated directly by the computer which calculates from the billet weight the number of pieces L to be cut, counts the shearing strokes and lowers the cylinder 31 when the trailing end of the billet is just clear of the pusher 30.
Patent GB-1098340-A (GB)
Title: Olefin polymeric hydrocarbons
IPC: C08G61/08
Filed: 1966-12-19
Abstract: A linear unsaturated copolymer comprises monomeric units of the general formulae (A) -CH=CH-(CH2)z-and (B) <FORM:1098340/C3/1> where z is 2 or 3 or from 5 to 10, and R, RI, RII, RIII and RIV, are the same or different and represent a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms, and the molar ratios of A:B are between 10:1 and 10,000:1. The copolymer is made by copolymerizing a 4-, 5-, 7- or 12-membered cyclomonoolefin with a conjugated diolefin of the formula <FORM:1098340/C3/2> where R etc. is as above, or with a 5- or 6-membered isocyclic conjugated diene in the presence of a catalytic system consisting of a tungsten halide and an organometallic or metal hydride compound of a metal of Group I, II or III of the Mendeleef Periodic Table.  The relative amounts of cycloolefin and conjugated diolefin in the copolymerization mix are kept between the molar ratio 10 and 10,000:1.  A Friedel-Crafts halide and/or peroxy compound may be included in the catalyst.  The polymerization is generally effected below 0 DEG  C., and preferably in bulk.  Suitable tungsten salts are WCl6, WOCl4, WBr5, WCl4, WCl2 an WCl2. 4/3AlCl3 obtained by reduction of WCl6 with a stoichiometric amount of Al metal.  The cyclomonoolefins may be cyclo-butene, -pentene, -heptene, -octene, -decene or -dodecene.  Specified conjugated dienes are butadiene, isoprene, 1,3-pentadiene, 2,3-dimethyl-1,3-butadiene, 4-methyl-1,3-pentadiene, 2,4-hexadiene, cyclopentadiene, and cyclo-1,3-hexadiene.  The copolymers may be sulphur vulcanized.
Patent GB-1359342-A (GB)
Title: Waste disposal
IPC: B01D21/00
Filed: 1971-04-19
Abstract: 1359342 Treating waste liquid ENVIRONMENT ONE CORP 19 April 1971 [11 March 1970] 57073/73 Divided out of 1359341 Heading C1C The subject matter is substantially the same as that disclosed in Specification 1,359,341 but the claims are directed to a method of treating waste liquid in which the waste liquid is aerated, treated with a flocculant and settled in a single tank, the resultant supernatant liquid is discharged into a storage tank, and any sludge which has settled out above a predetermined level in the single tank is discharged to another tank in which the sludge is further settled to produce a supernatant liquid which is recycled to the single tank.
Patent GB-1207545-A (GB)
Title: Sliding blade type rotary machine
IPC: F04C14/22
Filed: 1968-12-06
Abstract: 1,207,545. Rotary pumps and motors. AKSJESELSKAPET PUSNES MEKANISKE VERKSTED. Dec.6, 1968 [Dec.8, 1967], No.58018/68. Heading F1F. A rotary machine, pump or motor of the sliding blade type, comprising an outer housing 2, Figs. 1 and 2, within which is mounted a rotor 7 surrounded by an inner housing 1 transversely displaceable with respect to the rotor axis to vary the displacement volume of the machine and permit reversal flow of the operating medium, in which the inner housing is pivotally mounted in the outer housing by means of two hollow trunnions which include the inlet to and outlet from the machine. As shown, hollow trunnions 5, 6 integral with the inner housing 1 are pivotally mounted in end covers 3, 4 of the outer housing 2 and formed with inlet and outlet channels 14, 15. The inner housing is formed with lugs 29, 30 through which passes a pin 31 movable by means of a pneumatic or hydraulic piston and cylinder 34, 35. A centralizing spring 39 abutting at its ends a loose disc 55 and a sleeve 36 returns the housing 1 to its neutral position when no pressure fluid is applied to either one or other side of the piston 34. End plates 20, 21 prevent axial movement of the inner housing which would otherwise result from axial thrust produced by the operating medium and adjustable stops 42, 43 prevent excessive transverse movement of the inner housing. Guide rings 44 Fig. 7 fitted in recesses on each side of the rotor 7 and in the blades 12 to ensure synchronous movement of the blades. Each blade slot 48, Fig.6, is formed on either side of the blade with a plurality of recesses 49, 50 which co-operate with bores 51 through the blades. The bores 51 open into pockets 52 loosely mounting plates 53 which are moved by differential pressure acting on the opposite of the blades so that irrespective of flow direction of the operating medium the blades are urged sealingly outwardly into engagement with the cylindrical surface 13.
Patent GB-1282662-A (GB)
Title: Bicyclo[3,1,0]hexan-3-one derivatives and the manufacture thereof
IPC: C12P31/00
Filed: 1970-03-10
Abstract: 1282662 Bicyclo[3,1,0]hexan-3-one derivatives UPJOHN CO 10 March 1970 [14 March 1969] 58026/71 Divided out of 1282661 Heading C2C The invention comprises novel bicyclo[3,1,0]- hexan-3-ones of the formulµ wherein R 2  is H or C 1-10  alkyl, optionally substituted with 1 to 3 F atoms; R 3  and R 4  are H or C 1-4  alkyl; A is C 1-10  alkylene, optionally substituted by 1 or 2 F atoms, and with 1 to 5 C atoms between V and COOH and #C and OR 9 ; V is cis-CH=CH- or -C#C-; R 9  is H or 2- tetrahydropyranyl; R 12  and R 13  are C 1-4  alkyl; and #indicates attachment of and to cyclopentane ring in alpha and beta configuration and oxo or endo configuration with respect to the moiety attached to the cyclopropane ring; and their preparation. The carboxylic acids of the above formula in which V is cis-CH = CH- are obtained by hydrogenating the corresponding acids in which V is -C#C-, which are in turn obtained by oxidizing the corresponding primary alcohols, i.e. compounds of the formula above in which R 9  is H, resulting from the hydrolysis of the corresponding compounds in which R 9  is 2-tetra-hydropyranyl, obtained by reacting organic halides of the formula wherein X is Cl, Br or I in the presence of alkali metal alkoxides, alkali metal amides or alkali metal hydrides with the appropriate 2-unsubstituted-bicyclo[3,1,0]hexan-3-ones of the above formula, the latter being obtained by reacting the corresponding glycols with dialkyl ketones of the formula The following starting materials are also prepared:-endo-bicylo[3,1,0]hexan-3(and 2-)-ol-6- carboxylic acid methyl ester, endo-bicyclo- [3,1,0]hexan-3(and 2-)-ol-6-carboxylic acid methyl ester tetrahydropyran-2<SP>1</SP>-yl ethers, tetrahydropyran-2<SP>1</SP>-yl ethers of endo-6-hydroxymethylbioyclo[3,1,0]hexan-3-(and 2-)-ol, endobicyclo[3,1,0]hexan-3-(and 2-)-6-carboxaldehyde and endo-6-(cis- and trans-1-heptenyl)-bicyclo- [3,1,0]hexa-3-(and 2-)ol, endo-6-(cis- and trans- 1 - heptenyl) - bicyclo[3,1,0]hexan - 3 - (and 2-)- ol, endo-6-(cis- and trans-1-heptenyl)-bicyclo- [3,1,0]hexan - 3 - one, endo - 6 - (1,2 - dihydroxyheptyl-bicyclo[3,1,0]hexan-3-one, 1-tetrahydropyran - 2<SP>1 </SP>- yloxy - 4 - bromobutane, 7 - tetrahydropyran-2<SP>1</SP>-yloxyhept-2-yn-1-ol, 1-bromo-7- tetrahydropyran-2<SP>1</SP>-yloxyhept-2-yne, methyl 7- tetrahydropyran - 2<SP>1</SP> - yloxyhept - 2 - ynsulplonate, and endo-6-(1,2-dihydroxyheptyl)-2-(7- hydroxyhept - 2 - yn - # - yl) - bicyclo[3,1,0]- hexan-3-one.
Patent GB-1361645-A (GB)
Title: Transmissions
IPC: F16H37/02
Filed: 1972-12-15
Abstract: 1361645 Toothed and friction gearing ROLLS-ROYCE (1971) Ltd 15 Dec 1972 [15 Dec 1971] 58335/71 Heading F2Q Toothed sun gears 2 on a driving shaft 1 mesh longitudinally aligned pairs of planet gears 5, each pair of gears 5 being rotatable with a cylindrical roller 6 mounted between them and frictionally engaging a cylindrical surface 14 of a fixed annulus 13. The planet gears 5 may be formed integrally with the rollers 6 and rotatably mounted on pins 7 in a carrier 8 which is coupled to an output shaft 12 by means of an L- shaped arm 11. The pins 7 may be located in radial slots in the carrier 8, or alternatively they may have eccentric portions 37, Fig. 4, which are rotatably mounted in the carrier 8. The frictionally engaging surfaces between the rollers 6 and annulus 13 may be provided with circumferential grooves. In modifications shown in Figs. 6 and 7, sun gears 2 are fixed, and annulus 13 is connected to an output shaft. In another modification, shown in Fig. 8, an internally toothed gear 15 is connected to an output shaft and this arrangement may be further modified as shown in Fig. 9 in which a single toothed planet gear 5 is located between longitudinally spaced rollers 26, one of which engages an annulus 13 and the other of which engages a freely rotating ring 17 to counterbalance centrifugal forces.
Patent GB-1442145-A (GB)
Title: Defrosting apparatus
IPC: F25D21/02
Filed: 1973-12-17
Abstract: 1442145 Defrosting NANIWA SANGYO CO Ltd 17 Dec 1973 [15 Dec 1972] 58340/73 Heading F4H  In a domestic refrigerator including an evaporator having a cooling coil and fins attached to the cooling coil, defrosting apparatus comprises at least three sensing devices 14A, 14B, 14C arranged at the inlet, the coldest operational point and the outlet respectively of the evaporator. The sensing device 14B is arranged at a predetermined location on the cooling coil wherein in use of the refrigerator under abnormal ambient conditions (30-35 C.) the temperature of the refrigerant at said location is lower than the temperature of the refrigerant at the inlet senser 14A. Each sensing device 14 comprises a metal housing 15 containing water 16, a non-conductive plug 17 and an electrode 18; an electric potential being applied between an electrical lead 19 and the housing 15. Due to the difference in resistivity between water and ice, the sensing devices 14 act as switches at 0 C. The defrosting apparatus also includes an electric control circuit for interrupting the supply of refrigerant to the evaporator when water in all of the three sensing devices has frozen and maintaining the interruption of the supply of refrigerant until ice in all of the three sensing devices has melted.
Patent GB-1411967-A (GB)
Title: Latch assembly
IPC: E05B15/04
Filed: 1972-12-18
Abstract: 1411967 Latches KEYSTONE CONSOLIDATED INDUSTRIES INC 18 Dec 1972 [17 Dec 1971 21 April 1972] 58394/72 Heading E2A A latch assembly comprises a housing 10 for insertion and retention in an opening 11 in a closure, a latch spring biassed by a tab 28 pivotally mounted in the housing, an end portion projecting through an aperture in the rear wall of the housing and having a latching projection and a handle 14 affixed to the latch remote from the projection for imparting pivotal movement to the latch. The latch comprises a latch bolt 13 with the latching projection 15 and two lateral projections 21 for pivotal engagement in slots in embossments in opposite sides of the housing. The latch bolt has the resilient tab 28 which abuts the edge of a slot 24 in the housing. The latch bolt is released from an abutment 16 by manually pivoting the handle against the spring pressure of the tab. The housing is cylindrical and has grooves 47 for retention in the opening. In a modification shown in Fig 16 the resilient tab 44 extends from the latching projection 43 of the latch bolt 34 and the latch bolt pivots on a pin 32 mounted in shoulders of the housing 31. The assembly may be made of plastics. As shown in Fig 26 the latch bolt is retained by a pivoted locking member 49 actuated by a cylinder lock secured to the housing.
Patent GB-1236942-A (GB)
Title: Air cleaner
IPC: B04C3/00
Filed: 1968-06-19
Abstract: 1,236,942. Centrifugal separator. PALL CORP. 19 June, 1968 [19 June, 1967], No. 58446/70. Divided out of 1,236,941. Heading B2P. The subject-matter of the present specification is substantially identical with that of the parent specification but the invention relates to a gas cleaner comprising a tubular body 1, a vaned deflector 4 mounted within the body and having a plurality of centrally joined helical vanes 6, and a clean gas tubular outlet member 10 which is disposed in the outlet 3 of the tubular body with its inlet located within the tubular body and which defines with the tubular body an annular passage 12 for the removal of separated contaminant particles, the relationship of vane pitch length (Pl) to mean outside diameter (d) of the deflector being determined by the equation Pl=Kd<SP>0.68</SP> wherein K is a constant having a value of 2.2 to 3.2.
Patent GB-1283757-A (GB)
Title: Improvements in or relating to means for varying the angle of incidence of vanes in fluid flow machines
Inventor: WILLIAMSON DOUGLAS HERBERT
IPC: F01D17/16
Filed: 1969-12-02
Abstract: 1283757 Pressure exchangers; axial flow compressors; gas turbine engines ROLLS ROYCE Ltd 2 Dec 1969 58757/69 Headings F1C, F1G and F1N Guide vanes 70 in the air inlet ports 72 of a pressure exchanger or gas turbine engine compressor have a variable angle of incidence controlled by a system of levers 74, 76 unaffected by differential expansion and contraction. The inlet ports 72 of the pressure exchanger, shown, are formed in a casing 52 capable of moving axially, due to expansion, to maintain a predetermined clearance between the end plate thereof and the ends of the rotor vanes 30. Each vane is provided with a stub shaft 82 which extends through a hole in the casing 52 and carries a lever 80 pivoted to one of two arcuate channel members 78. Links 88 connect the members 78 to opposite ends of a lever 86 rotatable about a pivot 10 on the casing 52. Thus, rotation of the lever 86 changes the incidence of the vanes, this movement being produced by a fluid activator 102 acting through a radius arm 104, a shaft 96, a radius arm 106 and the lower link 88. Connection between the lower link 88 and the radius arm 106 is by means of a pin 108 fixed to the arm 106 and slidably extending through a pin 94 itself axially slidably mounted in the lower link 88. This latter connection permits movement of the casing 52 without causing the vanes to alter their incidence.
Patent GB-1327610-A (GB)
Title: Laser glasses
IPC: H01S3/17
Filed: 1970-12-11
Abstract: 1327610 Glass laser compositions; strengthening glass OWENS-ILLINOIS Inc 11 Dec 1970 [11 Dec 1969] 58847/70 Heading C1M [Also in Divisions C4 and H1] Thermal distortion of a glass laser rod, hollow cylinder, or film due to pumping is reduced by prestressing the rod surface, the laser glass containing at least 1À0 mole per cent of lithium oxide based on the total composition expressed in oxide content, and the prestressed condition being established by the use of an ion exchange heat treatment in which a proportion of the lithium ions in the surface of the glass are replaced by sodium ions from a mixture of sodium and lithium salts. The lithium and sodium salt mixture contains between 0À5 and 5À0 weight per cent of lithium salt, and the heat treatment of the laser glass is effected in a bath in which the salt mixture is in the molten phase at between 350 and 400 C. The laser glass is acidtreated to remove imperfections before immersion, and the period of heat treatment is limited for a time period depending on the lithium salt content to avoid deleterious effects such as surface haze formation, specific examples being given together with the depth of developed stress in each case. The laser glass may have any of the following compositions in mole per cent:
Patent GB-1280660-A (GB)
Title: Gear rolling
IPC: B21H5/02
Filed: 1969-12-03
Abstract: 1280660 Rolling gears LANDIS MACHINE CO 3 Dec 1969 [10 Dec 1968] 58979/69 Heading B3M A gear rolling apparatus comprises a mandrel 62 which supports the workpiece W and a pair of gear rolling dies 20, 22 which have guide rings 84, 86 attached to the die shafts 24, 34 and which roll on a guide ring 88 attached to the mandrel when the dies are in their innermost position. The rings ensure that the workpiece is rolled concentric with its axis. The apparatus is identical with that of Specification 1,205,661 except that it includes the guide rings. The guide ring 88 is a sliding fit on the mandrel 62 to allow replacement. The rings do not engage until the movable axis die 22 and the fixed axis die 20 have fully rolled the workpiece. In a modification, Fig. 4 (not shown), the guide ring (96) on the mandrel has a tapered surface and the guide rings (100), (102) on the die shafts have crowned surfaces. This allows gears with slightly larger or smaller pitch circles to be rolled.