baber/WOPTO huggingface dataset:
Patent GB-1230700-A (GB)
IPC: C08F10/00
Filed: 1969-12-03
Abstract: 1,230,700. Vinyl chloride-ethylene copolymers. FARBENFABRIKEN BAYER A.G. 3 Dec., 1969 [27 Dec., 1968], No. 58936/69. Heading C3P. Vinyl chloride-ethylene copolymers having an ethylene content of 0À5-15%, and an intrinsic viscosity of 1À8-0À6 Á/g. in cyclohexane at 25% are obtained by bulk, precipitation or suspension technique at 20-50‹ C. and 5-70 atms. in the presence of 0À1-1À5% (based on the vinyl chloride) of an initiator comprising 20-80% of an alkyl or cycloalkyl peroxydicarbonate and 80-20% of an alkyl or cycloalkyl sulphonyl peranhydride of an aliphatic carboxylic acid. Preferably all the ethylene is added at the beginning and pressure may be kept constant by venting as the ethylene comes out of solution.
Patent GB-1231367-A (GB)
IPC: B04B7/02
Filed: 1970-01-30
Abstract: 1,231,367. Centrifugal separators. WESTFALIA SEPARATOR A.G. 30 Jan., 1970 [28 Feb., 1969], No. 4735/70. Heading B2P. In a centrifugal separator comprising a rotary drum 1 surrounded by a collector casing 2 for centrifuged material, and a base member 4 housing means, e.g. a worm wheel 6, for driving the drum spindle 7, sealing means 21 between the base member 4 and the casing 2 is arranged to be movable into a closed position to seal the member 4 from the casing 2 so that when the separator is sterilized with superheated steam the steam is prevented from entering the space 5 within the base member. The drum may be provided with openings 8 through which centrifuged solids are periodically ejected into a chamber 10 in the casing 2. The chamber 10 communicates through an annular clearance 16 with an intermediate chamber 17 which in turn communicates with the space 5 by way of an annular clearance 18 and a journal bearing 19. The sealing means 21 may be in the form of a hood having a passage and openings 21a through which operating fluid, for the actuation of a sliding piston which opens and closes the openings 8 in the drum, is supplied to a chamber 31 from a line 20. Alternatively, the line 20 opens direct in the chamber 31. The sealing means 21 is secured to a cylindrical member 22 slidably guided in the bottom 3 of the housing 2 and sealed thereto by means of a sealing ring 30. Movement of the member 22 may be effected by rotatable pins 24 having eccentric boss portions 23 engaging in recesses in the member 22, so that the sealing means 21 can be caused to move axially upwards so as to make contact with a sealing ring 27 in the hub 26 of the drum thereby to close the annular clearance 18 when the drum is stationary and superheated steam is fed through the inlet 29 and escapes through the openings 8 into the chambers 10 and 17. In another embodiment, the separator drum has solid walls. The separated solids collect in the drum whilst the separated liquid is discharged in the casing surrounding the drum.
Patent GB-1231758-A (GB)
IPC: G11B17/16
Filed: 1969-02-14
Abstract: 1,231,758. Turntable spindle. S. STEIDINGER. 14 Feb., 1969 [29 Feb., 1968], No. 8068/69. Heading G5R. A spindle for the turntable of an automatic record change gramophone includes three symmetrically disposed record retaining members 8, which when member 3 is lowered during the change process are urged by spring 9 to a position supporting all except the last record in the stack and three symmetrically disposed record support elements 5 which support and release the lowermost record 12 under the control of member 3 but which, in the absence of records, act to prevent downward movement of member 3, which action leads to switch off of the record player. During upward movement of member 3, after a record change, the elements 5 are moved to their final outer position by engaging with the lowermost record in the stack. In the absence of a record this final movement does not occur and the elements take up a position in which their ends 19 engage with detents 20 formed in the sleeve 1 and thus prevent any downward movement of member 3.
Patent GB-1231936-A (GB)
IPC: B24B23/06
Filed: 1969-04-28
Abstract: 1,231,936. Grinding. SCHMID & WEZEL. 28 April, 1969 [16 May, 1968], No. 21511/69. Addition to 1,154,509. Heading B3D. The belt grinder described in the main Specification is modified in that cam means is provided to adjust the belt tensioning finger. In one form, a pivoted segment 8 is moved by an adjusting screw 8a to slide the finger 7 relative to the frame, Fig. 1. In another, a wedge 30 engages the finger 31. The finger may include an obtuse or right angle bend, Figs. 3, 4 (not shown).
Patent GB-1232826-A (GB)
IPC: A01N47/22
Filed: 1968-09-16
Abstract: 1,232,826. Substituted phenyl carbamates. CIBA-GEIGY A.G. 16 Sept., 1968 [14 Sept., 1967], No. 43958/68. Heading C2C. [Also in Division A5] The invention relates to substituted phenyl carbamates of the general formula as the free base or in the form of their salts, wherein the group -N(R 1 )(R 2 ) is in the O- position or m-position to the carbamoyloxy group and wherein R 1  represents an alkenyl residue with up to 6 carbon atoms, R 2  represents an alkyl residue with up to 6 carbon atoms, R 3  and R 4  independently of one another represent hydrogen or an alkyl residue with up to 4 carbon atoms and R 5  and R 6  independently of one another represent hydrogen or the methyl group. The compounds are prepared (a) by reaction of a phenol of the formula with alkyl isocyanate of dialkyl carbamic acid chloride or (b) by reaction of an amino phenyl carbonate or amino phenyl chlorocarbonate of the general formula with monoalkylamine or dialkylamine, wherein R 1  and R 2  represent such substituents as can either by subsequent alkylation or by elimination of halogen or hydrogen halide be converted into the substituents R 1  and R 2  having the significance mentioned, and wherein X represents chlorine or any desired C-containing easily replaceable substituent. Several examples are specified and claimed.
Patent GB-1251413-A (GB)
IPC: B26D1/04
Filed: 1969-01-30
Abstract: 1,251,413. Cutting devices. L. JUNGFER, [trading as AKKUMULATORENFABRIK DR LEOPOLD JUNGFER]. 30 Jan., 1969 [11 Nov., 1968], No. 5164/69. Heading B4B. A device for cutting fed strip material, e.g. of sintered plastics powder, using an intermittently actuated clamp/knife system includes two clamp/knife units 1, 2, relatively adjustable in the strip feed direction and fixable at any chosen separation, and having simultaneously actuable cutting knives 19, 20. The units 1, 2 are supported on frames 3, 4, the latter frame being slidable relative to a support 5, by means of a hand wheel 11 acting on spindles 7 engaging fixing nuts 8 on the frame 4, upper locking means being provided by a star-wheel 13 for clamping a connecting arm 14 fixed to the frame 3. Operating cycle.-Strip is fed across support surfaces 25, 26 to just overlap the second cutting knife 20 under the control of regulating gear 44. A pneumatic cylinder 40 then operates to retract a pawl 36 pivoted against a leaf spring 38, releasing a hook 35 and allowing a clamp 15 to engage the strip by the action of a compression spring 33. A ram 57 rigid with the clamp 15 thus engages a control valve 56, actuating, through a four-way impulse valve 55, double-acting cylinders 51, 52, which, through linkages 45, 47, 49 and 46, 48, 50, perform a simultaneous cutting stroke of the knives 19, 20. A second clamp 16 is spring urged downwardly to engage the strip immediately before impingement of the knives. At the end of the stroke, a ram 59 rigid with the knife 19 activates a further control valve 58 to reverse the action of the cylinders 51, 52, restoring the device to its initial position. A handle 62 for operating a pawl 61 enables the cylinder 40 to be raised out of active co-operation with the pawl 36 to stop the machine. Alternatively, electrical control means may be employed.
Patent GB-1253200-A (GB)
IPC: B21K21/08
Filed: 1970-04-16
Abstract: 1,253.200. Extruding; piercing billets. VERSON ALLSTEEL PRESS CO. 16 April, 1970, No. 18126/70. Headings B3H and B3P. An apparatus for producing double ended metal extrusions -14, Fig. 6, comprises a fixed punch 71, Fig. 10, a movable die 98 and a movable punch 87 which are closed on a workpiece 11 to backward extrude it over the punch 87 and forward extrude it over the fixed punch 71 while it is confined by the die. The blank is sheared from steel bar stock, annealed, lubricated with oil and deformed into a part 11. The part is cleaned by steam or caustic soda, annealed, coated with zinc phosphate and immersed in soap. The parts are fed from a hopper down a shoot 52, Fig. 1, and lifted to be held between pneumatic plungers 65, (57), Fig. 8 (not shown). Reciprocating gripper fingers (40), Fig. 2 (not shown), move each part to the extrusion station 31. The part is supplied to the upper end of a sleeve 76, Fig. 10, on a plate 77 which is lowered so that the part 11 is received in an opening 75 and rests on the fixed punch 71. The part is enclosed by the die 98 when the ram 42 is lowered and forwardly extrudes over the fixed punch. The backward extrusion starts when hydraulic pressure in the space 92 behind the die is overcome. When the ram moves up the part is stripped from the punch 87 by a sleve 108 and from the fixed punch 71 by the sleeve 76. The extruded part is then transferred by the gripper fingers to a piercing station 32, Fig. 1. The piercing station has a bed block 114, Fig. 12, with a hollow button 117 to support the extruded part 14. The part is held in position by a stripper body 132 and pierced by a punch 130. The pierced out part is discharged down a shoot. The pierced parts are then transferred to a discharge station 33, Fig. 1, with an apertured block 140 through which the parts are dropped. The part may be a barrel for a car starter motor.
Patent GB-1256590-A (GB)
IPC: B65G17/08
Filed: 1969-08-22
Abstract: 1,256,590. Endless slat-type conveyers. E. S. MILLER. 22 Aug., 1969, No. 41972/69. Heading B8A. A conveyer link 10 is formed of relatively rigid plastics and is adapted to be joined to other identical links which, when joined, permit link-to-link movement in a common plane and in different planes, the link comprising a substantially flat supporting surface 11 (although some links may have an article-engaging flight 40). The links are joined by interengaging means which extend from the underside of each link and comprise a first pair of interlocking and linking elements 25 and 27 respectively on one side of the underside of the slat, and a second pair of interlocking and linking elements 25 and 27 mounted adjacent the opposite side, the linking elements 27 being positioned toward the back, the interlocking element 25 being positioned toward the front. Each interlocking element 25 includes a pin 25 with the long axis thereof disposed substantially parallel to the plane of the slat, each of the linking elements comprises a curved body 29 having a bore with opposed open ends lying in planes normal to the plane of the slat, an entry 30 in the body lying in a plane parallel to the plane of the slat and having a portion in communication with one of the open ends, and a continuous annular body 28 defining the other of the open ends so that said pin 25 may be inserted through the entry 30 and then be laterally moved through the annular body to interlock the pin within the curved body. There is sufficient play between the elements 25 and 27 to enable the joined links to move angularly in a common plane and in different planes. Guide members 39 (Fig. 5) form a slide passageway to engage a guide member (not shown) to control travel of the links along a desired path. Each link is formed with a sloping step (14) (Figs. 1, 4 and 7, not shown) separating the slot surface proper from a lower surface on which a similarly recessed portion of the undersurface of the adjacent slot can slide when the conveyer is made to execute a curve in the plane of the direction of conveyance (Fig. 6, not shown).
Patent GB-1256640-A (GB)
IPC: H01B11/18
Filed: 1969-10-01
Abstract: 1,256,640. Coaxial cables. STANDARD TELEPHONES & CABLES Ltd. 24 Sept., 1970 [1 Oct., 1969], No. 48282/69. Heading H1A. A coaxial cable has an insulated centre conductor enclosed within a tubular outer conductor, the outer conductor being formed of a longitudinally rolled metal tape, the tape having transverse corrugations at an angle to the centre line of the tape so that when the tape is rolled into a tube with its longitudinal edges forming a butt joint the corrugations form a helical groove, and a wire wound helically and continuously in the helical groove. The outer conductor may be formed from a copper tape. The wire may be made of iron, and may be tensioned by being wound on whilst hot.
Patent GB-1264939-A (GB)
IPC: A21C1/10
Filed: 1970-07-17
Abstract: 1,264,939. Disperse monoazodyes. FARBENFABBIKEN BAYER A.G. 17 July, 1970 [16 Aug., 1969], No. 34748/70. Heading C4P. The invention comprises disperse monoazo dyes, free from SO 3 H groups, of formula wherein R is H, alkyl, alkoxy, alkylthio, alkylsulphonyl, or aryl which may be substituted, X is H, Cl, alkyl, alkoxy or aryloxy, Y is H, alkyl, alkoxy or aryloxy and Z is alkyl or 2-chloroethyl. The dyes are prepared by coupling diazotized 5 - amino - 1,2,4 - thiadiazoles with N-2-chloroethyl-anilines and are used to colour synthetic fibres in particular polyester fibres in orange and red shades.
Patent GB-1265298-A (GB)
IPC: C09D191/08
Filed: 1970-07-21
Abstract: 1,265,298. Wax coating. ATLANTIC RICHFIELD CO. 21 July, 1970 [19 Nov., 1969], No. 35386/70. Heading B2E. [Also in Divisions C3, C4 and C5] Compositions for coating paper and polymer foams comprise: (A) 100 p.b.w. wax of MPt above 120‹F, (B) 5-70 p.m.w. of a polyvinyl alkyl ether of average molecular weight 1000- 15000, and (C) an amount sufficient to impart to the composition an acid number of 5-200, of a wax-compatible non-corrosive carboxylic acid of acid number above 20. (A) may be paraffin, microcrystalline or slack wax, ozocerite, montan wax, carnauba, candelilla or Japan wax, bees wax Chinese or insect wax, or a synthetic wax produced by esterifying polyhydric alcohols, hydrogenating vegetable oils or Fischer-Tropsel synthesis (B) is polyvinyl methyl, ethyl, propyl or butyl ether (C) is preferably a liquid component, either being formed of a single liquid acid, or a solid acid plus a liquid acid or non-acid. Suitable liquid acids are fatty acid oligomers particularly oleic or linolenic dimers or trimers. Abietic acid per se, or wood rosin and its derivatives, may be used as solid acid in conjunction with a hydrocarbon oil or a liquid polystyrene, polypropene or polybutene. Optional ingredients include solid glycol esters of rosin acids as stabilisers, and aluminium or titanium dioxide pigments. The ingredients are blended in the molten state. In Example II polyurethane foam blocks are dip coated at 230‹F with compositions consisting of paraffin wax, rosin acid, polyvinyl isobutyl and/or methyl ether plus, in one case, a dimerised fatty acid.
Patent GB-1266585-A (GB)
IPC: F04D29/22
Filed: 1969-06-23
Abstract: 1,266,585. Centrifugal and axial-flow fans and pumps. E.M. RYLEWSKI. June 23, 1969 July 1, 1968], No.31491/69. Heading F1C. An inducer, e.g. for inducing fluid into impeller pumps and turbines, rotary pumps and motors and centrifugal and rotary compressors and fans, comprises a rotor with a hub member 12, Fig. 1, having at least one blade 13, 13<SP>1</SP> extending therearound, wherein the leading edge of each blade is of swept-back configuration, and each blade has at least one slot 21 extending over a substantial portion of the height thereof substantially parallel to and adjacent the leading edge. The blades may be of constant thickness, or of aerodynamic or hydrodynamic profile and have fixed or movable leading and trailing edge flaps (26, 27), Fig.4 (not shown). The blade lead is constant, and the blade trailing edges 18 are preferably radial but may be of swept configuration or joined to the leading edges 22 of the blades of a centrifugal impeller 20. The rotor may be mounted in a cylindrical chamber or a convergent chamber 11 as shown, and have blades shaped to correspond thereto.
Patent GB-1288393-A (GB)
IPC: E21D11/10
Filed: 1969-09-04
Abstract: 1288393 Lined tunnels WILLIAM F REES Ltd 4 June 1970 [4 Sept 1969] 43907/69 Heading E1F A method of constructing a lined tunnel comprises erecting a lining ring from three 120 lining segments within a tunnel shield, centering the ring within the shield, joining the ring to the previously erected ring, advancing the shield, and injecting a filler material into the annular void between the ring portion extending from the shields' rear and the surrounding material while the ring is supported co-axially with the shield by the shield. The ring is erected by placing a first segment within the shield, engaging one circumferential end of each of two further segments with the respective circumferential ends of the first segment, and pivoting the two further segments outwards to form the ring. The first ring is preferably placed on the bottom of the shield. The ring is erected, Fig. 1, within skirt 24 of shield 20, the tubular loop 23 is inflated to raise and centralise the ring, and the ring is then moved by jacks 21 to abut previously laid ring 26 to which it is then joined. Hardwood shield ring 27 maintains radial pressure on the ring. The tunnel is further excavated, the shield advanced, hoop 23 deflated, and a filler 28, e.g. high alumina cement grout, is injected through holes in the previously laid ring. A steel hoop 30, Fig. 9, may be contracted onto the ring to maintain radial pressure on the ring, the hoop being tensioned by a wedge 35 driven through a loop in the hoop. To ensure that the rings will crack at predetermined places each ring has one or more equi-spaced "V" shaped, or similarly shaped, notches extending axially on its inside surface, with similar notches in corresponding positions on its outside surface. Reinforced concrete and glass - reinforced - plastic segments are exemplified.
Patent GB-1289350-A (GB)
IPC: H01L41/00
Filed: 1969-09-02
Abstract: 1289350 Light modulators; light deflectors HITACHI Ltd 2 Sept 1969 [13 Sept 1968] 43484/69 Heading H4F [Also in Division H1] Application of a mechanical stress above a critical value to a crystal of "ferro-elastic material", e.g. KDP, Pochelle Salt, vanadium dioxide, Gd 2 (MoO 4 ) 3 , results in the crystal lattice changing from its original form to an enantiomorph (there may be several such forms), with a consequent change in the even rank polar tensorial properties of the crystal e.g. lattice strain, both lattice forms being stable in the absence of imposed stress, as indicated by a squarish stress-lattice strain hysteresis loop, Fig. 2 (not shown). The mechanical stress may take the form of a compression or tension, or a shearing stress, depending on the type of crystal lattice, and the charge of lattice orientation is facilitated by short circuiting any electrostatic charges produced in the crystal surfaces e.g. the surfaces perpendicular to the z axis of Rochelle salt. Examples of second rank polar tensorial properties are refractivity, infra-red absorption, electric susceptibility, electrical and thermal conductivity, and coefficient of thermal expansion, while the modulus of elasticity and coefficient of electrostriction are fourth rank tensorial properties. A light shutter, Figs. 7a, 7b, comprises a cuboid 5 of KDP cut at 6 into two right angled prism portions 5 1 , 5 2 , which are fixed together again after depositing aluminium on the cut surfaces 6. Parts of sides 7 and 8 of the cube also have aluminium deposited on them. The element is kept at liquid nitrogen temperature and a light beam I enters and leaves the crystal through non-deposited portions of sides 7 and 8 as shown in Fig. 7a. Application of a pressure above the critical value to the side 8 and the opposite side charges the lattice structure and the shape of surface 6 and the beam I is thereby reflected at surfaces 6, 7 and 8, Fig. 7b., In a similar manner, by wholly silvering faces 8 and 6, and using the charge in dielectric constant to determine whether light is transmitted or reflected at the face 7, the element may be used to deflect light to either of two positions, Figs. 8a, 8b (not shown). Microwaves in a waveguide may be variably attenuated by including a gadolinium molybdate element in the guide, Figs. 4-6 (not shown). Charging the lattice from one state to another by applied pressure greater than the critical value changes the di. electric constant and reflectivity of the element. A series of such elements may be provided.
Patent GB-1295062-A (GB)
IPC: B60S3/06
Filed: 1969-11-06
Abstract: 1295062 Vehicle washing apparatus CECCATO & C SpA 6 Nov 1969 [6 Nov 1968 10 Dec 1968 15 Oct 1969] 54522/69 addition to 1265193 Heading B7J  Vehicle washing apparatus comprises a gantry 1, adapted to extend transversely of a vehicle and mounting guides 3<SP>1</SP> along which runs a carriage 3 supporting a brush 4, the brush being rotatable by a motor 5 and the carriage being adapted to move along the guides when the brush is pivoted from the vertical on pins 14 to bring a knurled roller 8 into contact with a running surface 11, the structure 10 providing the surfaces 11 also being pivoted on pins 14 such that it may move between the dotted line portions shown in Fig. 2 for abnormal deviations of the brush away from the vertical and wherein the structure 10 is biased into the vertical either by spring means 18 or a counter weight 22, oscillation limit stops being provided on structure 10 together with blades 12.
Patent GB-1297361-A (GB)
IPC: A01N53/04
Filed: 1970-01-22
Abstract: 1297361 Sterilized furan derivatives SUMITOMO CHEMICAL CO Ltd 22 Jan 1970 [28 Jan 1969] 3191/70 Heading C2C A stabilized furan derivative of formula where R 1  is hydrogen or methyl and when R 1  is hydrogen, R 2  is isobutenyl and when R 1  is methyl, R 2  is methyl, is prepared by a process which includes agitating an absorbent consisting of silica gel or a mixture of silica gel and activated alumina in a vessel containing an unstabilized furan derivative, of the above formula, or which includes contacting with agitation the above absorbent and derivative, in solution or otherwise in a liquid phase at a temperature below its decomposition point. The derivative may be used as the active ingredient in insecticidal compositions. Reference has been directed by the Comptroller to Specifications 1,168,797 and 1,178,857.
Patent GB-1297812-A (GB)
IPC: B65H19/26
Filed: 1969-02-07
Abstract: 1297812 Winding webs CHAMBON Ltd 20 Jan 1970 [7 Feb 1969] 2709/70 Heading B8R The subject-matter of this Specification is substantially the same as that of Specification 1,297,811 but the claims relate to the provision of the rotary cutting blade which is traversable along a line extending transversely of the direction of movement of the web.
Patent GB-1305689-A (GB)
IPC: C22C1/04
Filed: 1971-07-14
Abstract: 1305689 Copper-base alloy MULLARD Ltd 14 July 1971 33061/71 Heading C7A [Also in Division C4] A diamond-embedding composition for use in the manufacture of diamond drills, grinding wheels and the like comprises copper powder 180 parts, tin powder 45 parts, iron powder 7 parts and titanium hydride powder 4 parts, each Œ5% preferably Œ2% A cutting matrix preferably comprises 6 parts by weight of diamond powder. The preferred particle size of the diamond powder is 25-85 mesh. (Standard Screen Scale).