baber/WOPTO huggingface dataset:
Patent GB-1139927-A (GB)
Abstract: 1,139,927. Multiplying apparatus. ING. C. OLIVETTI & C., S.p.A. 6 April, 1966 [10 April, 1965], No. 15226/66. Heading G4B. In an apparatus adapted for multiplication by the "shortcut" method a control member 211, 212 (Fig. 1) engages successively with projections 207 on the wheels 20 of a multiplier store 17 so that if a number of four or less is stored in the associated wheel 20 the totalizer 11 is engaged with racks 10 for addition of the multiplicand for the number of cycles necessary to bring the member 211 by anticlockwise rotation out of engagement with a projection 207 and if a number greater than 4 is stored in the associated wheel 20, an additive cycle first occurs in the next higher order and the store 17 is then stepped and the totalizer is engaged for subtraction of the multiplicand until the member 211 has been rotated clockwise out of engagement with projection 207. Multiplicand and multiplier entry.-A multiplicand is entered via a ten key keyboard and racks 10 into register 12 and on depression of the multiplication key a programme control shaft 42 (Fig. 4) begins a programme sequence for multiplication in which it is arrested in predetermined stations of 21 possible angular positions. The multiplicand is printed when the racks return to their original position. The multiplier is then similarly entered into a carriage 12, the carriage 17 being shifted leftwards step by step with the carriage 12 so that multiplication can begin with the highest order of the multiplier. Short-cut multiplication.-Each wheel 20 of the store 17 has an element 207 of length five steps engageable with a control member comprising a plate 211 integral with a toothed sector 212. Plate 211 is of length four steps and is rotated by the projection 207 in accordance with the number stored in the associated gear wheel 20. Fingers 201, 202 on a lever 198 sense the position of the wheel 20 of the next lower order. If a number 0 to 4 is entered the finger 201 is above the edge 204 and the finger 202 is above the edge 205. If a number 5 to 9 is entered finger 201 is above edge 205 and finger 202 above edge 206 so that a lever 198 is rocked clockwise to displace the sector 212 in the next higher order through one step. The totalizer 11 is brought into engagement with the racks 10 (which have been differentially set according to the multiplicand in register 12) for either addition or subtraction in accordance with the position of the lever 198 so that when carriage 12 is stepped to the right and the carriage 17 to the left under the control of the programme control shaft, the multiplicand is accumulated in the totalizer 11 the number of times necessary to step sector 212 out of engagement with the projection 207. When all the orders of the multiplier have been worked out the programme shaft 42 is rotated to the next station and causes a non-calculating key to be depressed to start a new machine cycle so that printing of the multiplier is effected. Finally the total key is automatically pressed to print the total and enter it in the carriage 12.
Patent GB-1226166-A (GB)
IPC: B60T11/22
Filed: 1968-11-07
Abstract: 1,226,166. Master cylinders. GIRLING Ltd. 31 Dec., 1969 [7 Nov., 1968], No. 52733/68. Heading F2F. A combined master cylinder and reservoir assembly consisting of a tandem master cylinder with a body 10 and a reservoir of plastics material such as polypropylene comprising a container 16 which has a base portion 19 engaging the body is formed by moulding plastics material around the body 10 to form a connecting layer 23 during the process of moulding the container 16.
Patent GB-1227170-A (GB)
IPC: G07F7/10
Filed: 1968-10-28
Abstract: 1,227,170. Permutation locks. A. HAWKES. 8 Dec., 1969 [28 Oct., 1968], No. 51055/ 68. Heading E2A. [Also in Division G5] An indicator, suitable for use as e.g. a credit card, comprises a slide element 19 which can be moved to register with a viewing window 20 provided that a plurality of co-operating displaceable coded elements 25 are positioned correctly relative to a datum 26. As described, movement of slide 19 downwards in slot 16 is usually prevented by the interference of coded elements 25 with respective protrusions 22 on limb 18 of the slide. However when elements 25 are slid to correct positions, the protrusions 22 can pass down through aligned slots 27; thus slide 19 is released and hides from view "Not Valid" markings (30A) otherwise visible through window 20, Fig. 1 (not shown). The slides 19, 25 are moved by knobs 29, 30. Instead of slides 25, notched rotatable discs may be provided.
Patent GB-1228298-A (GB)
IPC: B22C9/08
Filed: 1969-09-24
Abstract: 1,228,298. Liquid metal filter. KARL SCHMIDT G.m.b.H. 24 Sept., 1969 [24 Oct., 1968], No. 47110/69. Heading BID. [Also in Division D1] A glass-fibre mesh is rendered suitable for use as a filter for use in foundry work by impregnating it with a stiffening agent and subsequently heating at 600-900‹C for 1-30 seconds. The stiffening agent may be a phenolic resin.
Patent GB-1228827-A (GB)
IPC: F16K17/04
Filed: 1968-08-13
Abstract: 1,228,827. Valves. H. L. PAUL Jnr. 13 Aug., 1968, No. 38686/68. Heading F2V. In a pressure relief valve, pressure at the valve inlet 21 is transmitted, via a duct 18, to the underside of a piston 37, and also acts on the lower face of a valve closure member 33. Upon the transmitted pressure exceeding the downwardly acting force of a spring 36, piston 37 moves upwardly so releasing the force applied by a portion 43 thereof to a split collet 44, which collet in its compressed state serves to frictionally retain the valve member stem 34 in a position wherein the valve member 33 is seated, and so further permitting pressure acting on valve member 33 to move it away from its seat 24. Such movement of member 33 augments, through a spring 47, the upward fluid force acting on piston 37 and consequently the valve rapidly attains a fully open state. As the inlet pressure falls towards a certain predetermined value, so piston 37 and member 33 move downwardly, the spring 47 being so arranged between the closure member stem 34 and the piston 37 that during such downward movement, closure member 33 contacts its seat 24 prior to the piston portion 43 re-applying the radially inwardly directed force to the collet 44. Seat 24 is slidably arranged within an aperture in a valve body partition 20 and has interposed between it and the partition two spring washers 28 and 29. In a modification of the above embodiment the pressure supply for connection 18 may be derived from a source other than the valve.
Patent GB-1229829-A (GB)
IPC: F24H9/02
Filed: 1968-08-12
Abstract: 1,229,829. Combined water boilers and space-heating radiators. G. BYARD. 4 Aug., 1969 [12 Aug., 1968], No. 38420/68. Heading F4S. A combined water boiler and space-heating radiator compirses two, spaced-apart, waterfilled hollow panels 1 which with upper, side and lower walls 3-6 define a combustion chamber in which is located one or more additional water-filled hollow panels 2 and a burner 19, all the panels 1, 2 being in a common water circuit and heat for space heating being radiated by the external surfaces of the panels 1. The panels shown are vertical and rectangular, the panels 2 having a smaller vertical dimension than the panels 1. A casing 24 surrounds the apparatus and its controls 25, and has openings (not indicated) in its side walls to expose the heatradiating surfaces of the panels 1, for space heating. One side wall of the combustion chamber (e.g. the wall 4) has connections 21, 22 respectively for combustion air and burner exhaust gases. The panels are interconnected by piping 12, 13, 14, 14A, and flow and return connections 15 (and 15A, Fig. 3) are provided as shown to connect the heater to the radiators of a central heating system.
Patent GB-1232129-A (GB)
IPC: G11B23/087
Filed: 1969-11-10
Abstract: 1,232,129. Magnetic tape cassettes. AUDIO MAGNETICS CORP. 10 Nov., 1969 [19 May, 1969], No. 54857/69. Heading G5R. A cassette containing hubs 48, 49 between which magnetic tape is wound is provided with a sheet 36 having low-friction zones 36a, and a transparent zone 36b arranged across a tapeviewing window (not shown) in the cassette wall. Two sheets are located on opposite sides of the hubs and are preferably bowed so as to contact the tape rolls over regions bounded by lines 42, 43, and are located by notches 53, 54 and pins 46, 47. The sheets are of polyester, acetate or P.V.C. film and the low-friction zones are of graphite which also assists in dissipating static charge.
Patent GB-1232539-A (GB)
IPC: F16D69/00
Filed: 1969-07-09
Abstract: 1,232,539. Heat insulation of brake equipment. KARL SCHMIDT G.m.b.H. 9 July, 1969 [18 July, 1968], No. 34680/69. Heading F2E. Thermal insulation in the form of a heat insulating layer is interposed between the point of heat generation and an element for operating the brake, the heat insulating layer consisting of a metal fibre material impregnated with a substance that is a poor conductor of heat. Preferably the metal fibre material is a metal fibre fleece. In a simple form of the invention (Fig. 1, not shown), a backing plate for a brake or friction lining consists of metal fibre material to one face of which the lining is bonded by sintering. A zone extending from the other face for a distance about two thirds of the thickness of the material is impregnated with a substance that is a poor conductor of heat. The backing extends laterally beyond the lining and is provided with a transverse hole. As shown, the lateral edges of the brake lining are embraced by the metal fibre material 4 which forms the basis for the heat insulating layer. Thus, part of the backing plate performs a braking function. If the impregnation extends to the edges of the backing plate, the impregnant should have favourable friction properties besides being a poor conductor of heat.
Patent GB-1251671-A (GB)
IPC: H03H11/24
Filed: 1968-01-30
Abstract: 1,251,671. Variable attenuators; amplitude modulation; transistor frequency doublers. PLESSEY CO. Ltd. 17 Jan., 1969 [30 Jan., 1968], No. 4716/68. Headings H3R, H3T and H4R. The non-linearity of the drain current/sourcedrain voltage characteristic of a field effect transistor is corrected by combining the F.E.T. with a second F.E.T. having a biasing arrangement between the gate and drain electrodes, providing a characteristic of opposite curvature, so that the combined characteristic is linear. The F.E.T.s may be connected in series or in parallel. Fig. 4 shows an embodiment of two insulated gate F.E.T.s connected in parallel with the biasing provided, at ac, with capacitor C. The capacitor is connected to a potentiometer between source and drain if the beta of the second transistor Q2, is higher than that of the first Q1. If the transistors have the same beta the capacitor is connected direct to the drain. If the arrangement is to operate at D.C. then the capacitor is replaced by a D.C. biasing source. Esu supplies a bias on the substrate of the transistors. A dual gate MOST may be used, Fig. 6, providing effectively a series combination of F.E.T.s with a potentiometer R1, R2, providing a portion of the gate voltage Vg 1  to the gate g 2  to compensate the different beta's inherent in the MOST construction. The circuit may be used in variable attenuators, balanced modulators, or frequency doublers, no details being shown.
Patent GB-1251776-A (GB)
IPC: D01F6/82
Filed: 1970-04-20
Abstract: 1,251,776. Polyesteramide. 3 FARBENFABRIKEN BAYER A.G. 20 April, 1970 [18 April, 1969], No. 18658/70. Heading C3R.  A high MW polyesteramide (P) consisting of 10-90% mole units (A) and 90-10% mole units (B) is made by polycondensing (E) simultaneously with 10-90% moles (C) and 90-10% moles (D) in a reaction medium (M) comprising an inert solvent (S), or a 2-phase reaction-medium (N) comprising (S) and an aqueous alkali metal hydroxide or carbonate solution (T) at -20‹ to + 60‹ C. in the presence of a catalyst (Q). R 1  to R 8  are independently H, C 1-3  alkyl, Cl, or Br; R 9  is H, C 1-4  alkyl, or C 6-12  aryl; Ar is a p- or mphenylene diphenylene, diphenylalkylene, or diphenyl ether, sulphide, or sulphane radical; X is a direct bond, a C 1-5  alkylene, C 1-5  isoalkylene, or C 5-12  cycloalkylene radical, or O or S; n and m are independently 0 or 1; the total no. of units (A) and (B) >10; (P) has reduced velocity # red >0À3, where # red = (# rel -1)/# where # is the concentration in g/ml. of a solution of (P) in m-cresol. (T) may be NaOH; (S) may be cyclohexanone. Catalyst (Q) may be a tertiary amine or a quaternary base. Preferably one of (C) or (D) is placed in the reaction vessel as a diluent solution in (S); solutions of the other, and of (E), are then separately added dropwise. Films foils, fibres, coatings or mouldings may be formed from solutions or melts of (P).
Patent GB-1264836-A (GB)
IPC: H02M7/06
Filed: 1969-04-16
Abstract: 1,264,836. Static A.C./D.C. converters. INTERNATIONAL STANDARD ELECTRIC CORP. 16 April, 1969 [19 April, 1968], No. 19347/69. Heading H2F. [Also in Division G3] The output voltage of an A.C./D.C. converter is boosted by applying alternating voltage from a second A.C. source to the double bridge rectifier circuit. In an embodiment, Fig. 6, the main voltage is applied through a star/delta transformer 4 while a variable boost voltage is applied through anti-parallel thyristors 8 to 13 and single-phase transformers 5, 6, 7, the secondary voltages of which are added in push-pull series to the transformer 4 line voltages applied to the centre taps b, c, a. Fig. 7 (not shown) illustrates the vector relationship of these voltages; The D.C. output voltage is sensed and compared with a reference voltage, the difference value controlling a gate pulse generator 17 which in turn controls the thyristors 8 to 13. Thereby the periods during which boost voltage is added, are controlled and the D.C. output voltage maintained substantially constant. Smoothing filters L1, L2, C1 are provided. Fig. 9 shows the rectified output voltage waveforms, before smoothing, with and without the boost voltage.  The boost voltage may be derived from a single-phase source and applied between the D.C. outputs of the bridges as shown, Fig. 1, wherein it is injected through secondaries b 1 , b 2  and c 1 , c 2  respectively, the load being connected between centre tap terminals 6, 7. Figs. 4, 5 (not shown) illustrate embodiments wherein both A.C. sources are single phase.
Patent GB-1265107-A (GB)
IPC: C08L75/00
Filed: 1970-09-18
Abstract: 1,265,107. Poly-N-alkylurethanes. FARBENFABRIK BAYER A.G. 18 Sept., 1970 [27 Sept., 1969], No. 44572/70. Heading C3R. Aromatic poly-N-alkylurethanes are prepared by reacting substantially equimolar quantities of N,N<SP>1</SP> - dimethyl - N,N<SP>1</SP> - dialkyldiaminodiphenyl compounds (I) and bis-chlorocarbonic acid esters (II) of aromatic dihydroxy compounds at 50-350 C. Reaction may take place in an inert organic solvent and/or an inert atmosphere. I has the formula in which R<SP>1</SP> and R<SP>2</SP> are independently C 1-4  aliphatic radicals and X is a divalent aromatic radical which may be polynuclear. Preferred are I in which both R<SP>1</SP> and R<SP>2</SP> are methyl. II has the formula in which Ar and Ar<SP>1</SP> are mono- or bi-cyclic aromatic radicals; R is an alkylidene or cycloalkylidene radical or O, SO 2 , SO, S, Si= or CO; X is a monovalent hydrocarbon radical; Y is H or a monovalent radical, m and n = 0, 1 or 2; q = 0 or 1 and p = 1 or 2. Copolymers may be prepared by reacting several II with one or more I.
Patent GB-1266593-A (GB)
IPC: B65D75/00
Filed: 1969-09-09
Abstract: 1,266,593. Packaging. REED INTERNATIONAL Ltd. 9 Sept., 1970 [9 Sept., 1969], No. 44459/69. Heading B8C. In a package made for example of cardboard and particularly for non-repeatable shaped articles such as artistic objects or, as shown, an oven-ready turkey 24 vacuum packed in a synthetic plastics film, the turkey is securely attached to a platform 23 by a sealed together, and heat shrunk, sheet of polyethylene 27 and flaps 25, 26, hinged to each end of the platform 23, are folded up at right-angles to the platform 23 before the latter is placed in a box 11 to fit snugly within the base thereof so that, when the two lid portions 12, 13 of the base are closed, the two flaps 25, 26 abut the lid portions 12, 13 and restrain the platform 23 against vertical movement. The two lid portions 12, 13 meet and extend upwardly to form a handle 14 which is retained upright by means of tabs 15, 16 on the handle which engage in slots 17, 18 in portions 19, 20 extending upwardly from the upper ends of the box. The platform 23 and flaps 25, 26 are formed of thick corrugated board, or cardboard, so that the platform 23 is securely held within the box 11. For stacking during storage the portions 19, 20 are first folded across the top of the box and then the lid halves 12, 13 with their respective handle portions 14 in alignment therewith, are folded down, further tabs 21, carried by the tabs 15, 16 being inserted in slots 22 to retain the box closed. Two sheets of plastics having two heat seals may be used for heat shrinking around the article. More than one article may be secured to the platform, and a box may contain more than one platform. The platform may be secured by tabs, or separate distance-pieces.
Patent GB-1267090-A (GB)
IPC: G01S17/88
Filed: 1969-08-19
Abstract: 1,267,090. Detecting fires photo-electrically. DEFENCE SECRETARY OF STATE FOR Aug. 17, 1970 [Aug. 19, 1969], No.41256/69. Heading G1A. In a fire detection apparatus which responds to heat-induced changes in refractive index of the ambient air, a first coherent radiation beam 5 from a laser 1 having a stabilised output is subjected to a Doppler frequency shift, e.g. by a vibrating Piezo-electric crystal 15 carrying a mirror 13, and after combination with a reference beam 7 is incident on a detector 19, e.g. a photodiode whose output contains an A.C. beat signal component at a frequency corresponding to the Doppler frequency shift, the magnitude of this A.C. component being indicative of the refractive index of the radiation path traversed by the beam 5. With this path unheated, the relay 33 is arranged to be held in the position A. As the air heats up, the coherence of the beam 5 diminishes, owing to localised fluctuations in refractive index, and the amplitude of the heat signal decreases. When this amplitude falls below a pre-set level, the relay 33 assumes the position B and the alarm 31 is actuated. The amplifier 27 may be provided with a delay of a few seconds so that birds flitting through the beam would not actuate the alarm. In a second embodiment the reference beam is provided by a stationary concave mirror (43) located in front of the vibrating mirror 13 which in this case is also concave.
Patent GB-1267248-A (GB)
IPC: B60V1/16
Filed: 1969-07-07
Abstract: 1,267,248. Air cushion vehicles. AVON RUBBER CO. Ltd. 25 June, 1970 [7 July, 1969], No. 34153/69. Heading B7K. [Also in Division D1] A flexible attachment for joining a hovercraft skirt to a supporting structure, comprises two spaced-apart flanged bushes 6 around both of which are wound a plurality of turns of flexible filamentary material 14, e.g. steel wire or nylon cord, the turns being held together to secure them to the bushes. This is done by twisting the bushes with respect to each other, and coating the turns with abrasion- and ozone-resistant rubber 18. The surfaces between the flanges of the bushes may be similarly coated before winding, and the assembly may be cured in a moulding process.
Patent GB-1289823-A (GB)
IPC: C22C47/08
Filed: 1968-09-24
Abstract: 1289823 Casting composite materials UNITED KINGDOM ATOMIC ENERGY AUTHORITY 22 Dec 1969 [24 Sept 1968] 45414/68 Heading B3F To produce a composite of reinforcing fibres or wires arranged heterogeneously in a ductile metal matrix, molten metal is introduced into the voids between a number of parallel bundles of fibres or wires and between the fibres or wires and allowed to solidify. The non-uniform distribution is said to increase the fracture toughness transverse to the fibres. The reinforcement may be Fe, steel or Mo or W wires of a diameter between 10 microns and 1 mm., or alumina, silicon carbide, carbon or silicon nitride fibres. The matrix may be Ag, Al or Al alloy, Cu or Cubase alloy such as Cu/Sn alloy, Ni or Ni alloy including Ni-Cr alloy or Pb or Pb alloy. W wire cleaned by boiling in caustic soda is bundled in lengths, twisted or bound together, and the bundles located, possibly mounted, by threading in refractory blocks, e.g. of graphite, in a graphite mould for casting of the matrix in a vacuum of 10<SP>-3</SP> torr. Some adjacent bundles may be in contact or spaced apart. Wire may be precoated with the matrix metal by passage through a molten bath and then wires spun together to form coated wire cord. A number of cords are then drawn through orifices (in a uniform or non-uniform pattern) and into a further molten bath to issue after solidification as an elongate composite.
Patent GB-1297495-A (GB)
IPC: F16D65/14
Filed: 1971-09-02
Abstract: 1297495 Spot type disc brakes GENERAL MOTORS CORP 2 Sept 1971 [18 Sept 1970] 40975/71 Heading F2E A disc brake pad 14 is operated by a cupshaped piston 26, in a housing 30, containing a spring loaded adjuster nut 38 threaded on a screw 46 rotatably mounted in the housing, the piston and nut being connected by a one-way clutch 61 permitting only rotation of the nut towards the pad, and providing relative axial movement of either the pad or the piston thereto; upon hydraulic actuation of the piston, fluid pressure overcomes the spring loading to hold the nut against rotation. Upon return of the piston 36, if, due to pad wear, the stroke is excessive, the pressure reduction occurs before the end of the stroke, allowing the spring 56 to rotate the nut 38, through an anti-friction bearing 62, against the piston to compensate for the wear. An emergency, or parking brake comprises a lever 48 causing the screw 46, which is axially retained in the housing 30, to rotate to move the nut 38 axially but restrained for rotating by the one-way clutch 61. The clutch 61 is fixed to the piston 26 but splined on the nut 38, and comprises a ramp and roller device. The housing 30 comprises a floating caliper.
Patent GB-1308910-A (GB)
Title: Fabrics
IPC: D03D27/00
Filed: 1969-08-12
Abstract: 1308910 Warp pile fabric IRISH ROPES Ltd 9 Nov 1970 [12 Aug 1969] 40160/69 Heading D1K A woven fabric comprises pile warp yarns weft yarns and chain yarns in which the pile warp yarns are of fibrillated plastics material produced by a pinned roller, the weft and chain yarns being of fibrillated plastics material and the stretch ratio during fibrillation being more than 5:1 and the amount of twist being less than 25 turns per foot.
Patent GB-1312812-A (GB)
Title: Process for preparing magnetic chromium dioxide
IPC: C01G37/02
Filed: 1970-06-16
Abstract: 1312812 Magnetic chromium oxide NIPPON CHEMICAL INDUSTRIAL CO Ltd 16 June 1970 [20 June 1969(7)] 29000/70 Heading C1A Ferromagnetic chromium dioxide is prepared by calcining a homogeneous mixture of a chromium oxide in which the valency of chromium is at least four, with at least 0À01 mole Be, Mg, Ca, Ba, Sr, Pb, Tl, Th, Cu, Cr and/or zinc nitrate per g. atom of Cr in the oxide and calcining the mixture. The usually used oxide is CrO 3  but Cr 2 O 5 , Cr 3 O 8  or mixtures of these oxides optionally with CrO 2  may be used. The mixture may be provided by mixing compounds e.g. HNO 3  and chromate or bichromate of Cu, Sr, Ba or Pb, which give the desired oxide and nitrate by reaction. Other modifying elements or compounds may be added to the mixture prior to calcination to improve the properties of the product. Specified materials are the chromates, bichromates, nitrates, halides, halogenates, perhalogenates and oxides of Li, Na, K, Rb and Cs; elemental or oxidic Sb, Te, Ni, Cr, Mn, Ge, Co, Tl, Ti, V, Bi, Cd, Ge, Sn and Mo; fluorides of Fe, Co, Zn, Ni and Mg; and sulphates of Mn, Co, Cr and Ni. The product of the invention may be purified by washing with HNO 3 , water and acetone and drying.