baber/WOPTO huggingface dataset:
Patent GB-1415040-A (GB)
Title: Supply of hydraulic fluid to utilization circuits
IPC: F04B49/08
Filed: 1973-09-19
Abstract: 1415040 Hydraulic systems POCLAIN 19 Sept 1973 [17 Oct 1972] 44023/73 Heading F1P A hydraulic system comprises a constantdelivery pump 11 for supplying the working jacks 18 of a machine and a variable delivery pump 5 for supplying the translation motors 15 of the machine, a regulator assembly 19 being provided which is automatically operable to adjust the output of the variable-delivery pump 5 so that the maximum power available for driving the pump 5 is equal to the maximum power output of the engine 1 driving the pumps, less the power taken by the constantdelivery pump 11. The regulator assembly 19 includes a piston 21 having one end disposed in a chamber 32 continuously subjected to the delivery pressure of the variable-delivery pump 5 and the other end to springs 29, 30, 31 of differing length, the springs acting through a second piston 25. Delivery from the constant-delivery pump 11 flows through a line 43 an adjustable restriction 41 and a pipe 44 into a chamber 33 containing the end of the piston 25 remote from the springs 29, 30, 31. A helical groove 26 in the cylindrical surface of the piston 25 constitutes in conjunction with a cylinder bore 22, a variable restriction 34 between the chamber 33 and a pipe 45 connected to a reservoir 13. The hydraulic resistance of the restriction 34 depends on the position of the piston 25 and thus also the position of the control member 6 of the pump 5. The Specification contains a theoretical explanation of why the regulator assembly 19 is operative to displace the pump control member 6 a distance which corresponds to the subtraction of the power of the constant-delivery pump 11 from the power of the constant-delivery pump 5. If the maximum power of the variable-delivery pump 5 is lower than the power of the engine, a pressure-adjusted valve (47) is disposed in the line 43 from the constant-delivery pump to the restriction (41), Fig. 5 (not shown), the valve only allowing flow to the restriction 41 when the power never taken up by the pump 5 is taken up by the pump 11. In further embodiments, Figs. 6 and 8 (not shown) additional variable-delivery pumps and possibly also constant-delivery pumps are provided, each supplying a separate load. In these embodiments each variable delivery pump has a separate regulator assembly (19a, 19b ---), each piston 25 thereof being loaded by a plurality of pistons (e.g. 32ab, 32aa --) each subjected to the individual output from one of the variable-delivery pumps. When an additional constant delivery-pump (51) is used and is selectively employed by means of changeover valves (62a, 62b) to feed alternative loads (53a, 53b), the output is placed in communication with the chambers (33a, 33b --) of the regulator assemblies (19a, 19b --). Non-return valves (52a, 52b) prevent reverse flow through restrictions (41a, 41b --).
Patent GB-1510612-A (GB)
Title: Recovery of copper from copper-bearing materials
IPC: C22B5/14
Filed: 1976-10-25
Abstract: 1510612 Gaseous reduction of copper compounds CYPRUS METALLURGICAL PROCESSES CORP 25 Oct 1976 [14 Nov 1975] 44203/76 Heading C7D A copper oxide or copper salt is reduced by hydrogen in a fluidized bed, the charge also containing sufficient inert particles to restrain agglomeration of the product copper to an extent such that defluidization of the bed is prevented. In a preferred process cuprous chloride is reduced in the presence of sand, although fused magnesia, alumina, and fused alumina all give satisfactory results. Preferred conditions include a reduction temperature of 400-600‹C and inert material amounting to 0À7 to 10 times the weight of copper bearing material, the inert material having smooth generally spherical surfaces and low apparent porosity. In the particular embodiment illustrated HCl evolved from the reactor is dissolved in water and used to cleanse the sand of deposited Cu before recirculation.
Patent GB-1307057-A (GB)
Title: Electromagnetic conveyor for liquid metals
IPC: B22D39/00
Filed: 1971-09-22
Abstract: 1307057 Pumps operating by electromagnetic interaction with fluids AEG-ELOTHERM GmbH 22 Sept 1971 [9 Nov 1970] 44244/71 Heading H2A In an electromagnetic conveyer for liquid metals comprising an upwardly sloping trough, the strength at the metal/trough interface of the travelling magnetic field which propels the metal up the trough increases continuously or discretely at least along a major part of the length of the trough. This may be achieved by designing the refractory lining of the trough such that its thickness decreases in the direction of metal flow, Fig. 1 (not shown). Alternatively, the field strength may be increased by reducing the spacing between the slots of the inductor producing the travelling field, or the winding of the inductor may be divided into sections and the different sections supplied with electrical energy at different rates. The inductor may be disposed on one side of the trough, Fig. 3 (not shown), or above the trough. It is stated that increasing the field strength avoids the formation of eddies in the metal and so increases the efficiency of the conveyer.
Patent GB-1403140-A (GB)
Title: Method for sterilizing a liquid and an ejection for use therein
IPC: A61L2/06
Filed: 1973-09-20
Abstract: 1403140 Sterilization ALFA LAVAL AB 20 Sept 1973 [13 Oct 1972] 44263/73 Heading A2D [Also in Division B2]  A method of sterilizing a liquid such as milk or blood comprises directing into contact through an ejection nozzle concentric annular jets of steam and liquid to form a single annular jet, wherein two concentric streams of cold liquid are directed along the inner and outer surfaces of the single annular jet thereby to prevent material from the heated liquid adhering to the surfaces of the nozzle. The cold liquid in the two streams may be the same as the liquid to be sterilized. The method may be carried out using an ejector nozzle which comprises four concentric annular channels for supplying liquid, steam and cold liquid and which open into an annular region surrounding a central plug, the radially innermost and outermost channels being connected in use to a source of cold liquid. The method may be carried out in the ejection nozzle shown in the accompanying Figure wherein the liquid to be treated and steam are supplied through inlets 16 and 17 respectively. The liquid and steam flow through cavities 19, 20 and channels 21, 22 and meet in the zone 23 around plug point 14, the liquid being immediately heated to a sterilization temperature. A portion of cold liquid supplied through inlet 16 flows via holes 24 into slot 15 and then to plug point 14. A further flow of cold liquid enters the nozzle via inlet 7 and flows through channel 6. These flows of cold liquid prevent precipitated material from adhering to surfaces of the nozzle. In an alternative embodiment wherein the holes 24 are not present or have been blocked, cold liquid may be supplied to the nozzle via channel 29 and branches 30.
Patent GB-1059597-A (GB)
Title: Automatic melting point measuring method and apparatus
IPC: G01N25/04
Filed: 1963-11-11
Abstract: 1, 059, 597. Determining melting point electrically. CHEVRON RESEARCH CO. Nov. 11, 1963 [Nov. 13, 1962], No.44492/63. Heading G1N. In an apparatus for determining the melting point of a liquid hydrocarbon stream, a liquid sample is continuously fed through a conduit 45 (Fig. 3) to a passage 26 in a metal block 49 which is warmed and cooled cyclically by polarity sensitive thermoelectric elements 53 (bismuth telluride crystals) and the temperature is detected continuously by thermocouple elements 37 (Fig. 6) connected in a bridge circuit the output of which is fed through an amplifier to a pen motor PM of a temperature recorder. The passage is first cooled until liquid flow therethrough is obstructed by a frozen mass of the sample and the liquid level rises until it reaches an overflow weir 51 (Fig. 3) when a light beam from a source L1 is reflected from the liquid surface to a photo-cell PC1, which modifies the grid bias of a thyratron TH1 to deenergize a relay K 11  thereby opening contacts K 11 <SP>2</SP> and allowing a capacitor C1 to charge up. In addition the photo-cell signal initiates operation of relays to reduce the alternating voltage to a 3 phase bridge rectifier DP supplying the thermoelectric elements 53. The block 49 is then permitted to be warmed up by ambient temperature, the obstruction melts and the liquid level falls de-energizing PC1, so that K 11  is again energized. K 11 <SP>2</SP> closes and a relay K 41  is energized by discharge of C1. Relay K 41  transfers power from the pen recorder motor to a chart motor so that the pen is held at the melting point temperature while the chart moves about #" to provide an identifiable trace. After 10 secs K 41  drops out and recording continues normally. The direction of current in the thermoelectric elements is again reversed so that the heating cycle is initiated, which continues and the block temperature increases until a switch closed by the pen when in a maximum temperature position energizes relays K 21 , K 31 , K 61  to again reverse the current in the thermoelectric elements and the cooling cycle recommences. If the ambient temperature is too low to melt the obstruction the direction of current may be reversed through the element 53 to heat the block at an earlier stage in the cycle than stated above. The block may alternatively be cooled by liquid refrigerant e.g. CO 2 , Figs. 1, 2 (not shown).
Patent GB-1428084-A (GB)
Title: Double label
IPC: B26F1/38
Filed: 1974-10-15
Abstract: 1428084 Double labels MASCHINENFABRIK SPANG & BRANDS 15 Oct 1974 [17 Oct 1973] 44662/74 Heading B8F A double label comprises two tabs 1, 2 connected by a web 3 having a length 4 that is substantially equal to twice the length 5 of each tab. The width 6 of each tab is substantially equal to three times the width 7 of the web. The labels are stamped from a sheet in a repititious pattern so that no wastage results. The labels are clamped by closure clips between bags when the bags are sealed on a packing machine. The corners of the tabs may be radiused or chamfered and the join between the tabs and web may also be chamfered.
Patent GB-1407836-A (GB)
Title: Centrifugal brake for use in an equalising basin of a sewer system
IPC: E03F5/10
Filed: 1972-09-27
Abstract: 1407836 Trapped gullies J M JOHANNESSEN and P P SORIENSEN 27 Sept 1972 [28 Sept 1971] 44672/72 Heading E1C [Also in Division G3] A centrifugal brake 5 for use in a gully or like basin 1 of a drainage system to restrict the maximum rate of flow of drainage water from the gully into a sewer system comprises a housing defining a braking chamber 16 of generally circular cross-section and having a fluid inlet 19 opening into the interior of the housing and directing incoming liquid tangentially into the chamber adjacent its periphery, and a fluid outlet 15 leading out of the braking chamber at or near the centre of its crosssection and formed to act as a syphon when the brake is used with the fluid inlet at the bottom of the housing (i.e. as shown, the axis of the circular cross-section being horizontal), and when the water level in the chamber covers the entry to the outlet 15. In the embodiment of Figs 6 and 8, the brake 5 is embodied in a two-part casing 13, 14 having an inlet 24 which in use is submerged in the drainage water in the basin 1, the. casing being sealed in an opening 3 of the basin by a sealing ring 6 and groove 4. The casing is formed to provide a venting tube 23, a filter in the form of a perforated plate 21 through which the liquid, when above a predetermined level, passes to a chamber 20, an inlet tube 19 leading upwardly from the chamber 20 to the cylindrical braking chamber 16 so as to constitute a syphon and at the same time serve to direct the liquid, when a flow has been established, tangentially against the internal peripheral wall of the chamber 16. A baffle plate 17 is positioned to trap air and disturb the rotation of the liquid to increase the braking effect of the chamber 16. The outlet 15 leads via outlet tube 18 to the sewer pipe. In operation, the liquid flows by syphon action without appreciable rotation in the chamber 16 until a predetermined head in the basin 1 is exceeded, after which the liquid rotates in the chamber 16 and the flow is braked so as to remain substantially constant until a much greater head is established whereafter the relationship between flow and pressure head follows a second curve (Fig 10, not shown). In the simplified form of Fig 12, the syphoning effect does not occur, since the device 5 merely consists of a chamber formed by casing halves 13', 14', tangential inlet passage 19', baffle plate 17' and outlet arrangement 15', 18', whereby braking of the flow occurs almost immediately and the flow/head relation ship is according to the second curve (Fig 10).
Patent GB-1008655-A (GB)
Title: Baking pies, cakes and the like
Inventor: STONE IRWIN MADDLIN
IPC: A21D8/04
Filed: 1961-12-14
Abstract: 1,008,655. Bakery confections. BAXTER LABORATORIES Inc. Dec. 14, 1961, No. 44713/61. Heading A2B. In preparing confections such as cakes, pies and iced biscuits, there is incorporated in the batter baked a heat-stable alpha-amylase preparation in amount equivalent to 10-200 SKB alpha-amylase units per 100g. of flour in the batter, the amylase preparation being present in such amount and being of such thermal stability that effective amounts of alpha-amylase are present and active in the crumb at temperatures above the starch digestion point to reduce the normal crumb structure to a pudding-like mass. The alpha-amylase may be from Bacillus mesentericus or B. subtilis.
Patent GB-1331293-A (GB)
Title: Apparatus for the relative alignment of two objects
IPC: G03F9/00
Filed: 1970-09-21
Abstract: 1331293 Photo-electric alignment apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 Sept 1970 [24 Sept 1969] 44794/70 Heading G1A In photo-electric apparatus for use in the alignment of two objects, 3, 4 which are relatively movable as shown by arrow X, carrier members 1, 2 secured to or forming part of each object, bear respective patterns 7, 8 which are in the preferred embodiment, as shown in Figs.6 and 7. The patterns on one plate 2, i.e. that of Fig.6, comprises two patterns A 1 , A 2  one above the other, each having an arrangement of equal width opaque areas, and being symmetrical about its centre, but with an opaque area added to the right of one (A 1 ) and to the left of the other (A 2 ). The areas in pattern A 1  are staggered by a small distance with respect to those of the lower pattern A 2 . On the other plate 1, respectively aligned with patterns A 1 , A 2 , are patterns B 1 , B 2 , Fig.7, which are identical to one another but complementary to A 1 , A 2 . A common light source or separate sources may be used to illuminate the upper and lower parts of patterns A 1 , B 1  and A 2 , B 2 , and respective photo-cells may receive light transmitted therethrough. There is one unique positional relationship between the plates (and thus patterns) for each photo-cell, at which its output is zero, the distance between these positions being equivalent to the stagger distance. On relative displacement of the objects, the photo-cell outputs each show an asymmetric variation with respect to displacements in opposite directions, Fig. 8 (not shown). By combining the outputs of the cells in a differential amplifier, a relationship between displacement in either direction from a defined datum position is provided, Fig.9 (not shown). Modifications include: the use of identical instead of complementary patterns A 1 , B 1  or A 2 , B 2  in which case staggering in both pairs A 1 , A 2  and B 1 , B 2  is provided; repeating a pattern on carrier 1 or 2 several times in the direction of movement; for use in alignment of a photo-made on a semi-conductor wafer, the use of reflective areas on the wafer instead of transmissive ones as on the pattern 7 or 8. By providing sets of patterns in two directions at right angles to one another, movements in a plane may be monitored.
Patent GB-1404108-A (GB)
Title: System for transporting letters and the like
IPC: B07C1/18
Filed: 1973-09-25
Abstract: 1404108 Conveying and orientating letters by endless belts DE STRAAT DER NEDERLANDEN TE DEZEN VERTEGENWOORDIGD DOOR DE DIRECTEUR-GENERAAL DER POSTERIJEN TELEGRAFIE EN TELEFONIE 25 Sept 1973 [28 Sept 1972] 44821/73 Headings B8A and B8R Letters fed from shoots 8, 8 to a conveying trough defined by two endless belts 1, 2, and a fixed member 14, are turned by feed rollers 9 so that a lower corner of each letter is first gripped by the belts, which then turn the letters into an upright position. Support rollers 3-7 are staggered, so as to allow for bunching of the letters.
Patent GB-1203102-A (GB)
Title: A rotary pump assembly
IPC: F04C13/00
Filed: 1967-10-03
Abstract: 1,203,102. Rotary positive-displacement pumps. A. HANDTMANN [trading as ALBERT HANDTMANN; Oct.3, 1967 [May 6, 1967], No.44893/67. Heading F1F. A rotary positive-displacement pump has vanes 41 slidable radially in a rotor 40, only four of the vanes 41a -- 41d being rendered in sealing contact with the housing by a cam 43 having a slot 45 slidably engaged by flats 47 on a fixed pin 46. The cam is urged towards an inlet duct 44 by a spring-loaded pin 50 bearing upon an oblique surface 52 at the end of the slot 45 farthest from the pin 46.
Patent GB-1448609-A (GB)
Title: Electrical assembly apparatus
IPC: H05K13/04
Filed: 1974-10-17
Abstract: 1448609 Assembling electrical components on circuit boards; riveting AMP Inc 17 Oct 1974 [14 Nov 1973] 44998/74 Headings B3A and B3U A method of assembling a plurality of electrical contacts 100 to a printed circuit board 110, the contacts being mounted on a removable carrier strip 102, Fig. 1, and each contact having a post 104 adapted to pass through a hole in the printed circuit board, comprises placing a circuit board between a support 13 and a template 60, Fig. 3, loading a plurality of contacts in holes in the template, moving a pusher member 89 towards the template, Fig. 13, sensing the pusher member when at a predetermined distance from the template, causing relative lateral movement between the pusher member and the template to align the pusher with a surface 107 on the contacts, Fig. 15, moving the pusher member further towards the template so as to engage the surface 107 and stake the contacts to the printed circuit board. The template 60 is lifted off of the support plate 13 by rotation of a handle 33 and a printed circuit board 110 is placed on the plate, with locating holes (112), (114) in the circuit board, Fig. 2 (not shown), in registry with holes (61), (63), in the plate, Fig. 10 (not shown). The template is lowered so that pins 71, 73, engage in the registered locating holes. Contacts 100 are then placed in combs (150), Fig. 11 (not shown), with their posts 104 in preformed holes in the printed circuit board. An air cylinder 122 is actuated to drive a pusher assembly 80 downwardly and an actuating rod 128 acts as a sensory device. At a predetermined position, i.e. just before bumper members 65, 85; 67, 87, engage, the rod 128 operates an air valve 131 to actuate a pressure cylinder 76 thereby moving the plate 13 laterally. The initial downward movement of the assembly 80 allows the pusher members to pass the carrier strips 102, Fig. 15, and the lateral movement of the plate 13, brings the posts 104 under them. Further downward movement causes an actuating rod 127 to operate an air valve 130 to increase the pressure in the cylinder 122 thereby forcing the assembly 80 to stake the posts in the circuit board. When a predetermined pressure is reached in the cylinder, the air supply is reversed and the assembly 80 is retracted. As it moves upwardly, the pusher members 89 engage their respective strips 102 removing them from the contacts 100, Fig. 15. On further upward movement of the rod 128, the plate 13 is moved laterally to its original position. The handle 33 is operated to lift the template 60 away from the plate 13 and the printed circuit board with its assembled contacts is removed from the apparatus.
Patent GB-1125170-A (GB)
Title: Improvements in tough films formed from organopolysiloxanes
IPC: A61B19/04
Filed: 1966-10-07
Abstract: 1,125,170. Organopolysiloxanes. GENERAL ELECTRIC CO. 7 Oct., 1966 [16 Dec., 1965], No. 45018/66. Heading C3T. In a conventional method of forming a film having a toughness value above 100,000, the material composing the film is made by condensing in the presence of stannous octoate a resinous copolymer composed of R 3 SiO 0 . 5  and SiO 2  units in a ratio of from 0À77: 1 to 1:1  respectively, and a siloxane of the formula HO(R<SP>11</SP> 2 SiO) n H, wherein R and R<SP>11</SP> are each a monovalent hydrocarbon radical and n is at least 2500, there being from 1 to 6 pts. by wt. of the hydroxyl-terminated siloxane per pt. of the copolymer. In a typical Example (1) the copolymer and hydroxy-terminated siloxane were blended together in toluene, stannous octoate added, and the resulting blend was cast on to a tin sheet and cured at 65‹ C.; a strip cut from the film had a toughness value of 760,000. Preparations of the copolymer are also described. (Toughness value = 0À5 x tensile strength x elongation.) Uses.-For making moulds, surgical gloves and for encapsulating artificial body members, e.g. artificial hearts.
Patent GB-1220940-A (GB)
Title: An exhaust pipe having a weatherproof cap
Inventor: BAUERSCHMIDT WALTER
IPC: F01N13/08
Filed: 1968-09-23
Abstract: 1,220,940. Exhaust pipes. W. EBERSP€CHER and H. EBERSP€CHER [trading as J. EBERSP€CHER], Sept.23, 1968, No.45043/68. Heading F1B. The end of an exhaust pipe 1 is covered by a cap 6 carried by an arm 5 pivoted at 4 to a bracket 3 clamped on the pipe, the arm 5 having a stop 7 what ensures that in closed position the cap 6 covers the end of pipe 1 without directly contacting it. The cap 6 and stop 7 may be made of synthetic resin.
Patent GB-1434294-A (GB)
Title: Insulation of strand material
IPC: C08L1/00
Filed: 1973-09-26
Abstract: 1434294 Cross-linking polymeric insulators WESTERN ELECTRIC CO Inc 26 Sept 1973 [26 Sept 1972] 45097/73 Heading C3P A conductor insulation comprises a polymeric material comprising at least 74% of polyvinyl chloride and preferably including a chlorinated polyethylene, 30-50 p.h.r. of a cross-linking olefinically unsaturated monomer at least 50% by weight of which is a dimethacrylate of a C 3 -C 40  glycol or a polyethylene glycol (n= 1À5 to 20) a lubricant and a liquid organometallic stabilizer; the composition is applied to a conductor by extrusion and cross-linked by electron irradiation. The lubricant is preferably a paraffin wax, the stabilizer a barium and/or cadmium soap preferably with a phosphite chelator. Optional additives are dibasic lead stearate, dibasic lead phthalate antimony oxide and colourant.