baber/WOPTO huggingface dataset:
Patent GB-1341648-A (GB)
Title: Thermal fatigue-free semiconductor device
IPC: H01L21/52
Filed: 1972-08-15
Abstract: The device includes a semiconductor die joined to a thermally conductive substrate with a solder having a high lead content. An enclosure surrounds the die and is sealed to the substrate. A substantially nonoxidizing atmosphere is provided within the enclosure.
Patent GB-1210308-A (GB)
Title: Improvements in packaging of cellulose acetate flake
IPC: A24D3/10
Filed: 1968-08-09
Abstract: 1,210,308. Packaging cellulose acetate flakes/ baling press. CHEMCELL Ltd. 9 Aug., 1968 [15 Aug., 1967], No. 38167/68. Heading B5F. [Also in Division B8] A cellulose acetate flakes package is in the form of a compressed bale having a density of from 30 to 40 pounds per cubic foot. To prepare the package, the flake which preferably has a moisture content of at least 4% is compressed to a density of 40 to 50 pounds per cubic foot, the bale held in the compressed state for at least 5 seconds and the pressure then released, after which the bale is inserted into a loose bag. The bale then expands to a " final " density of 30-40 pounds per cubic feet to fit the bag. The device for preparing the package has a compression chamber having a rectangular base and two fixed opposed walls, the other two opposed walls being provided by two reciprocable side rams. To prepare the package, flakes from a spout are introduced into the chamber and then compressed from the top by a compression ram to a specified limit. After at least 5 seconds, the compression ram and one side ram are withdrawn and then the other side ram acts as an ejection ram to push the bale into a bag. The corners of the bale may be chamfered or bevelled before the bale is put into the bag. The operation of the rams may be automatic.
Patent GB-809572-A (GB)
Title: í¡í¡
IPC: H01R9/05
Filed: 1956-12-14
Abstract: 809,572. Making electrical components; jointing by stamping. AMP Inc. Dec. 14, 1956 [Dec. 14, 1955 (2)], No. 38232/56. Classes 83 (2) and 83 (4). [Also in Group XXXVI] A tool for crimping a sleeve connector (see Group XXXVI) on to a shielded cable comprises a casing 10 within which a pair of dieblocks 12, 14 is pivoted at 18, 20 and adapted to be operated by a handle 30 pivotally connected to block 12 at 24 and to a link 26<SP>1</SP> at 28, which link is pivotally connected to block 14 at 24<SP>1</SP>. The casing also has a pair of links 40, 42 pivoted thereto at 36, 38 and to handles 48, 50 at 44, 46 which are in turn pivotally connected at 54 to a ram 52 having a die-face 56 at its inner end and slidable between the blocks 12, 14. In operation, handle 30 is rotated clockwise to close the blocks 12, 14 onto a connector and the handles 48, 50 are brought together to move ram 52 axially and compress the connector between die-faces 56, 58. Fig. 5 shows another embodiment wherein die blocks 70, 74 pivotally connected to each other by a pin 78 are closed on to a connector by an ordinary vice, the axial compression of the connector being effected by a ram 80 which screws in to block 70 and is rotated by a wrench.
Patent GB-1220764-A (GB)
Title: Improvements relating to stepping mechanisms
Inventor: HARTMAN FRITZ
IPC: F16H31/00
Filed: 1969-07-30
Abstract: 1,220,764. Ratchet gearing. F. HARTMANN. 30 July, 1969 [30 July, 1968], No. 38318/69. Heading F2Q. A stepping mechanism comprises a driven wheel 1a carrying axially extending studs 1b which are engaged by opposed wedge-shaped grooves 2b, 2b<SP>1</SP> on the end of a pivotally mounted driving lever 2a which is oscillated radially with respect to the wheel 1a The lever 2a is mounted on a pivot 8 and is urged in one direction by a spring 3. Movement in the other direction is effected by energization of an electromagnet 4, 5 which attracts an armature 7 engaging a cup 2e in a short arm of lever 2a. In a modification, the wedge-shaped grooves have slightly convex and concave surfaces.
Patent GB-1486551-A (GB)
Title: Vehicle washing
IPC: B60S3/04
Filed: 1973-08-14
Abstract: 1486551 Vehicle washing J M WIMBORNE 13 Aug 1974 [14 Aug 1973 6 Nov 1973 30 Nov. 1973] 38456/73 51440/73 and 55678/73 Heading B7J In a vehicle washing apparatus, a vehicle washing fluid is pumped into a storage means such as a pressure accumulator 1 or 11 so as to charge the accumulator with washing fluid under pressure and then delivered through jets 111 and 115 carried by a vertically movable horizontal frame 101. The frame 101 is stiffened by ring mains to the jets 111 and 115 and supported from masts at one side thereof by ropes 102 provided with counterweights 103 and an actuating jack 104, so that a programmed raising and lowering can be performed during a wash and rinse cycle. Water from a supply 10 is pumped by a pump 4 either to a rinsing water accumulator 1 at over 20 atmospheres, or to a chemical liquid accumulator 11 to dilute chemical concentrate pumped from drums 21. Pressure in the accumulators 1 and 11 is maintained in part by gas from a compressor pump 27, and fluid is also supplied to an under chassis wash UCW.
Patent GB-1104950-A (GB)
Title: Magnetic conveyor assemblies
Inventor: BUCCICONE DARIO
IPC: B65G21/20
Filed: 1965-06-08
Abstract: 1,104,950. Endless conveyers. BUCCILONI ENGINEERING CO. Inc. 8 June, 1965 No. 39042/67. Divided out of 1,104,748. Heading B8A. The description is identical with that of the parent Specification, but the claims differ.
Patent GB-996770-A (GB)
Title: A mould for the spigot end of a concrete pipe
IPC: B28B21/76
Filed: 1962-10-16
Abstract: 996,770. Moulding concrete pipes. G. A. POITRAS. Oct. 16, 1963 [Oct. 16, 1962; Jan. 10, 1963], Nos 39069/62 and 1110/63. Heading B5A. A mould for forming the spigot end of a concrete pipe in conjunction with a conventional pipe mould comprises a ring mould in which a circumferential groove forming component is mounted, means being mounted on the ring mould to impart limited radial expanding and contracting movement to the groove forming component. This arrangement allows easy removal of the ring mould from the pipe when the concrete has set sufficiently to maintain its shape. In the preferred embodiment shown the groove forming component comprises a plurality of segments 54, 55, 56, 57 pivotally mounted between the plates 41, 43 of the ring mould 39. The segments are moved between a groove forming position and a retracted position by the hydraulically or pneumaticallyoperated piston and cylinder assemblies 61, the movement being limited by stops 64 and 62 respectively. Gaps between segments 54, 55 and 56, 57 to permit the pivotal movement are bridged by resilient bridging portions, e.g. of rubber. To position and locate the ring mould 39 on the pipe mould 51 a plurality of lugs 52 are provided on the lower plate 41. In a further embodiment the groove forming component is an outwardly biased split ring which is moved between the groove forming and retracted positions by a manually-operated toggle mechanism.
Patent GB-1436458-A (GB)
Title: Catalyst method of manufacture and use thereof
IPC: C10G47/16
Filed: 1973-08-20
Abstract: 1436458 Catalyst for hydrocracking oils UOP Inc 20 Aug 1973 [21 Aug 1972] 39202/73 Heading C5E [Also in Division B1] Petroleum or heavy petroleum fractions are hydrocracked in the presence of a catalyst composition comprising a crystalline aluminosilicate-alumina support which is substantially free from amorphous silica and contains less than 4% wt. sodium and a hydrogenation component thereon comprising a Group VIII metal component and a Group VIb metal component in a weight ratio of 1À5 : 1 to 9 : 1 (calculated as metals). Example II describes the use of a presulphided nickel-molybdenum on magnesium-exchanged faujasite-alumina catalyst to hydrocrack a 400 F. vacuum gas oil fraction at a l.h.s.v. of 0À6, a pressure of 2000 p.s.i.g., a temperature of 738À5 F. and a hydrogen feed rate of 10,000 s.e.f. per barrel to give a product having a C 5+  yield of 108À7 liquid volume per cent and a C 4  yield of 17À6 liquid volume per cent.
Patent GB-931630-A (GB)
Title: Improvements in or relating to transparent screens
IPC: E06B7/28
Filed: 1960-11-15
Abstract: 931,630. Screens. H. A. L. VENNER (Helmut Bierbrauer). Nov. 15, 1960, No. 39261/60. Class 20 (3). [Also in Group XI] A screen for lighting systems or for roof lights &c. is formed from angular units of transparent plastics or glass strips 2 rigidly connected at 3 at any angle, by angle strip 3 which is screwed or riveted to the strips 2, and hingedly connected at 4 by flexible foam rubber or foam plastics strips 4 secured by adhesive. The angular unit may be formed as an extrusion (Fig. 2, not shown), or the two strips which it comprises, may be welded in edge-to-edge contact.
Patent GB-1436090-A (GB)
Title: Magnetic iron oxides with orientability and a process for their production
IPC: C01G49/02
Filed: 1974-09-16
Abstract: 1436090 Acicular iron oxide BAYER AG 16 Sept 1974 [21 Sept 1973] 40173/74 Heading C1A An acicular, magnetic iron oxide pigment containing 0À1-4% by weight of zinc ions and 0À1-2% by weight of phosphate ions (calculated as PO 4 <SP>3-</SP>) is claimed per se, the zinc and phosphate ions being present in the reaction system which produces the pigment before seed formation. Cobalt, nickel and/or manganese may each be present in the pigment to an extent of 1- 10% by weight. The pigment may be produced by (a) reacting part of the iron in an iron (II) salt solution with a basically reacting pre-  cipitant so as to form a precipitate of iron hydroxide, iron carbonate or a basic iron salt, the iron salt solution and/or the basically reacting precipitant containing 0À1-4% by weight of zinc ions and 0À1-2% by weight of phosphate ions (based on the α-FeOOH to be precipitated), (b) oxidizing the precipitate at a pH of 2-8 to give seed crystals of α-FeOOH, (c) growing the α-FeOOH seeds according to the Penniman process, or according to the precipitation process by oxidizing the precipitate at a pH of 2-8, and (d) dehydrating, reducing and optionally reoxidizing the acicular FeOOH thus formed.
Patent GB-1436729-A (GB)
Title: Method and apparatus for securing close abutment of layer plates  in the manufacture of welded multi-layer pressure containers
IPC: F16J12/00
Filed: 1973-08-24
Abstract: 1436729 Welding by fusion; making pressure vessels FRIED KRUPP GmbH 24 Aug 1973 [26 Aug 1972] 40269/73 Headings B3R and B3A In the manufacture of a cylindrical or conical pressure container comprising a plurality of layer plates concentrically surrounding a core tube and edge-to-edge connected by longitudinal and circumferential weld seams, each layer plate 2 is pressed against a core tube 1 (or previously applied layer plate), to form a ring, by tangentially pulling the layer plate longitudinal edges together, to hoop tension the layer plate, by a device 4 having relatively movable rows of pins 5 engaging corresponding rows of holes 3 provided in the layer plate adjacent said longitudinal edges. After welding at 6 and removal of the device 4, the holes 3 may be filled with weld metal or they may remain, e.g. as ventilation and inspection holes.
Patent GB-1334052-A (GB)
Title: Removal of phosphorus from waste liquids
IPC: C02F1/52
Filed: 1970-08-21
Abstract: 1334052 Treating sewage DORR-OLIVER Inc 21 Aug 1970 [22 Aug 1969] 40347/70 Heading C1C In a process for precipitating phosphates from an aqueous liquid waste in which there is formed an aqueous effluent and a phosphorus containing sludge lime is mixed with recycled sludge and/or a portion of raw feed to give an alkaline mixture having a predetermined pH of 10À5 or more and the alkaline mixture is either mixed with raw feed or the remainder thereof to give a low predetermined residual phosphate content to the aqueous effluent. Flocculation aids may be present.
Patent GB-1443353-A (GB)
Title: Filters
IPC: B01D24/30
Filed: 1973-08-25
Abstract: 1443353 Moving bed filter SIMON-HARTLEY Ltd 11 July 1974 [25 Aug 1973] 40368/73 Heading BID Granular filter medium such as sand is fed into the filtering zone past a baffle edge 14 so as to form a free inclined upper surface 26 into which liquid, such as sewage effluent, to be filtered flows from inlet 27. If the sand includes grains of various sizes, the baffle edge 14 causes coarse grains to form an upper layer adjacent surface 26 with the finer grains forming the intermediate part of the bed. A baffle 36 may be provided to create a similar coarse layer adjacent to nitrate outlet 29, 30; otherwise the left-hand side of the bed will remain unclassified. Medium may be discarded after leaving the lower end of the bed, but as shown an air lift pump 32 recycles medium up pipe 31 to chamber 19 where it is washed by a fraction of the incoming unfiltered liquid diverted through valve 34 and discharging at 35. Alternatively the medium may be washed with filtrate. The bed movement may be continuous or intermittent. It is possible to backwash the bed by delivering liquid to outlet 30 or to the bottom of the bed. In Fig. 1 the bed has a rectangular horizontal section, but in Fig. 2, not shown, an annular bed is formed with an inverted conical inlet surface 26 by a conical baffle (38) into whose interior the unfiltered liquid is delivered. Several air lift pumps are circumferentially spaced.
Patent GB-992619-A (GB)
Title: Improvements in and relating to acoustic transducers for the priming of explosives
IPC: F42D1/05
Filed: 1963-10-14
Abstract: 992,619. Electric blasting fuzes. PRAKLA GESELLSCHAFT FUR PRAKTISCHE LAGERSTATTENFORSCHUNG G.m.b.H. Oct. 14, 1963 [Oct. 16, 1962], No. 40372/63. Heading F3A. A device for firing explosive charges comprises an acoustic transducer connected to the input of a monostable blocking oscillator circuit which includes a transistor, the transistor being non-conductive in the state of rest and receiving the electrical energy for the detonation of a fuze in an explosive charge from a capacitor chargeable through a rectifier. A borehole 1 may be filled with explosive charges 3, 3a, 3b, 3c, the uppermost charge 3 being fired by conventional fuze means 4 activated by a charger 5, while the lower charges are provided with acoustic devices 6, 6a, 6b connected to detonators 7, 7a, 7b, respectively. Each acoustic device is activated by a charger 9 connected through a rectifier 21, Fig. 2, with a capacitor 19, so that when a sound wave generated by the explosion of charge 3 arrives at the transducer 11 of acoustic device 6, the transistor 12 becomes conductive. This in turn renders a transistor 13 conductive and puts the capacitor 19 in circuit with an impulse transformer 14, 15, 18 connected to the detonator 7. The charge 3a is thus detonated and generates a wave in phase with the wave from the charge 3. The process is repeated through charges 3b and 3c, so that a high-energy wave arrives at the bottom of the borehole, which wave can be used for geophysical measurements. The charges may also be arranged in adjacent boreholes.
Patent GB-1319990-A (GB)
Title: Lincomycin and lincosaminide  derivatives and the manufacture thereof
IPC: C07H9/04
Filed: 1970-08-25
Abstract: 1319990 Lincomycins UPJOHN CO 29 Oct 1970 [3 Nov 1969 (3)] 40743/72 Divided out of 1319988 Heading C2C Compounds (I) and (II) where R is 1-4 C alkyl; Alkyl is 1-4 C-alkyl, R 1  is H, Me or Et and R 2  is 1-8 C-alkyl or 5-7 C-cycloalkyl are prepared either by reacting a compound (III) with thiourea in a tertiary amide dipolar aprotic solvent to give a mixture of the α- and #-isomeric isothiouronium salts then hydrolysing this with concomitant alkylation followed by separation and hydrolysis to give (II) or by uncatalysed hydrolysis of a compound (IV) followed by alkylation, hydrazinolysis to remove the N-acetyl group and finally acid hydrolysis to give (II) then acylating (II) with a pyrrolidine carboxylic acid to give (I). Compound (III) is prepared from 2<SP>1</SP>-hydroxyethyl 1-thio-α-celestosaminide by acetylation followed by bromination of the peracyl derivative.
Patent GB-1204555-A (GB)
Title: Improvements in and relating to air-vents for ventilation
IPC: F24F13/08
Filed: 1968-08-26
Abstract: 1,204,555. Clamps. G. F. BYRN, [trading as G. BYRN CO.]. 7 May, 1969 [26 Aug., 1968], No. 40793/68. Heading E2B. [Also in Division F4] A clamp for releasably mounting a louvre unit in an aperture in a partition 5 comprises a block 8 which is slidable on an uppermost louvre 3 between guide walls 9 and is adjustable by a screw 11 having a head 14. A lower adjustable clamp- 6 may be provided.
Patent GB-1220670-A (GB)
Title: Soill compacting machine
IPC: E01C19/28
Filed: 1969-08-18
Abstract: 1,220,670. Vibratory road rollers. BOPPARDER MASCHINENBAUGESELLSCHAFT m.b.H. 18 Aug., 1969 [11 Sept., 1968], No. 41070/69. Heading B7H. A soil compacting machine comprises at least two rollers 1, 2 arranged in tandem and at least two out of balance centrifugal force generators mounted in a frame of the machine, one in front of and one behind the rollers on shafts 11, 12 which extend in the direction of travel of the machine. The rollers may comprise two pairs 1, 3 and 2, 4 which are driven through gearing 25 from hydraulic motors 52, 53 and at each side of the machine, the motors being driven by hydraulic pumps 50, 51 themselves driven by a diesel engine 13 which also drives a pump 16. The pumps and engine are supported by coil springs 14 on the side frames of the machine. The pump 16 supplies fluid to hydraulic motors 19, 20 coupled together by shafts 22 ... 24 and each driving at opposite ends of the machine either through gearing or a toothed belt drive a number of unbalanced discs 31 ... 38 acting as centrifugal force generators 8 mounted on short shafts such as 11, 12 supported in transverse frame members 9, 10 such that their axes are in the direction of travel of the machine. The discs may be arranged in pairs each disc of a pair being similarly balanced but rotating in the opposite direction to the other such that a rotary oscillatory motion is avoided and the motion is confined to a vertical reciprocatory direction. The discs at each end may be out of phase such that the machine receives a fore and aft rocking or pitching motion and the frequency of oscillation of the generators at each end may differ such that the resultant frequency may coincide with the resonant frequency of the soil being compacted.
Patent GB-970855-A (GB)
Title: Improvements relating to the recovery of formaldehyde
Inventor: WEBB WILLIAM HARRY ARLETT
IPC: C07C47/04
Filed: 1959-12-03
Abstract: Formaldehyde is recovered in the form of an aqueous solution from the mixture obtained by the catalytic conversion of methanol using a dehydrogenation catalyst and a feed consisting of methanol, water vapour and air, by fractionating in a column of the bubbling plate type, comprising utilising the heat in the product at least to aid the fractionation causing the liquid descending the fractionating column to the point of introduction of the mixture to take over one minute to pass over a plate, and maintaining a methanol concentration on the topmost plate of the column above 20% by weight. If desired, some of the heat in the mixture derived from the reactor may be taken off by means of a heat exchanger before the mixture is passed to the fractionating column.  The aqueous formaldehyde solution containing only small amounts of methanol is removed from the bottom of the column. Preferably, after the fractionation, sufficient water is added to dissolve the methanol and the resulting mixture is used for the production of more formaldehyde. The Specification contains description and drawings of suitable apparatus for carrying out the process.
Patent GB-1409059-A (GB)
Title: Electrodeposition of chromium
IPC: C25D3/04
Filed: 1972-09-06
Abstract: 1409059 Electro-deposition of micro-cracked chromium M & T CHEMICALS Inc 6 Sept 1972 [7 Sept 1971] 41299/72 Heading C7B A substrate is chromium plated by electrodeposition of a first layer of dense, non- micro-cracked chromium and of a second microcracked layer of chromium; the micro-cracked chromium being deposited from an aqueous solution containing a) 100-500 g/l chromic acid calculated as CrO 3 , b) catalyst consisting of sulphate and active fluoride ions, and c)>2ppm watersoluble selenium; the weight ratio of chromic acid to catalyst ions (b) being 10:1 to 100:1 calculated according to the formula where F<SP>-</SP> represents a simple or complex fluoride ion, and V=2 for complex fluorides and 0.25 for simple fluoride; using a current density of less than 40 ASD to produce micro-cracked chromium having more than 600 cracks/cm. The process may be used to coat bearing surfaces.
Patent GB-1214699-A (GB)
Title: Gas discharge lamps
IPC: C09K11/08
Filed: 1968-08-30
Abstract: 1,214,699. Luminescent materials. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 30 Aug., 1968 [2 Sept., 1967], No. 41473/68. Heading C4S. [Also in Division H1] A luminescent screen in a low pressure discharge lamp (see Division H1) is activated by bivalent europium, and preferably has the composition xAO.yBaO.zMgO.1P 2 O 5 : pEuO.qMnO where A designates strontium and/or calcium and where and more particularly where or Numerous specific compositions are disclaimed. The constituents are heated twice at 1200‹ C. with intervening grinding and sieving. The heating may be in a stream of air, or nitrogen/ hydrogen mixture, or carbon monoxide.
Patent GB-1497037-A (GB)
Title: Perfumery compositions
IPC: C11B9/00
Filed: 1974-12-09
Abstract: 1497037 Preparation of acetals BUSH BOAKE ALLEN Ltd 9 Dec 1974 [7 Sept 1973] 42129/73 Heading C2C [Also in Division A5] Ethoxy hexoxy ethane is prepared by heating diethoxy ethane, n-hexanol and ammonium chloride and adding potassium hydroxide in ethanol. The compounds ethoxy-n-butoxy ethane; ethoxy-n pentoxy ethane; ethoxy-n heptoxy ethane; ethoxy-n octoxy ethane and ethoxy-n hexoxy propane are prepared using analogous procedures.
Patent GB-1136593-A (GB)
Title: Infra-red transmitting glasses
Inventor: NIELSEN STANLEY
IPC: C03C1/02
Filed: 1964-10-15
Abstract: 1,136,593. Selenide glass purification. MINISTER OF TECHNOLOGY. 14 Jan., 1966 [15 Oct., 1964], No. 42176/64. Heading C1M. Infra-red transmitting selenide glasses are purified by distilling the glass in a stream of reducing gas. The glass constituents are selenium with one or more of the following elements: arsenic, germanium, sulphur, tellurium. A glass, in atoms per cent, initially As 20; Ge 30; Se 50 purifies to As 8; Ge 34; Se 58 and As 20; Se 80 to As 14À4; Se 85À6. The initial glass may be prepared by weighing out the quantities of each element into thick walled silica glass ampoules which are evacuated and sealed under vacuum. The ampoules are heated to 1000‹ C. in a tube furnace, which is rocked to and fro to mix the constituents, for 5 to 6 hours and allowed to cool naturally. The melts are then purified in a still consisting of a silica furnace tube 1 with an inner recessed outgassed silica distillation tube 3 having three recesses 3A, 3B, 3C located respectively in independent furnaces A, B, C surrounding tube 1. Upstream ends of tubes 1, 3 contain wads 7, 9 of silica wool. An electrical lead 5 is taken to thermocouples 5A, 5B, 5C in the furnaces A, B, C. Glass is placed in recess 3B and H 2  or H 4 Se/H 2  mixture passed through and burnt at the outlet end of tube 1. The furnaces A, B, C are maintained at 120‹ C. for 1 to 2 hours to dry the apparatus, then furnace A adjusted to 370‹ C., a temperature at which selenium dioxide and arsenious oxide are volatile and then furnace B heated rapidly to 900‹ C., the selenide glass distilling into the recess A. To compensate for the loss of As and /or Se in distillation, the initial glass may be adjusted or additional As and/or Se at particular temperatures may be placed in the recesses such as recess 3C. After distillation, furnace A is heated to 600‹ C. to melt the condensed glass into more compact shape and the glass allowed to cool, still in the stream of H 2 .