baber/WOPTO huggingface dataset:
Patent GB-1145759-A (GB)
Title: Improvements in and relating to vacuum chambers for circular particle accelerators
IPC: H05H7/14
Filed: 1966-12-05
Abstract: 1,145,759. Cyclic particle accelerators. FELDMUHLE A.G. 5 Dec., 1966 [4 Dec., 1965], No. 54335/66. Heading H1D. The toroidal chamber of a circular particle accelerator, e.g. an electron synchrotron, is made up of straight flange-connected segments 2 composed essentially of sintered alumina. The chamber segments are arranged as shown between the polepieces 3 of a segmented magnet and are supported on resilient linings 4. An internal conductive layer 7 of molybdenum and/  or manganese is sintered to the inner surfaces of the chamber segments to prevent wall charging. The layer is less than 50 microns thick and preferably less than 30 microns thick, e.g. 25 microns, to avoid eddy currents. The chamber segments are of elliptical cross-section.
Patent GB-1156849-A (GB)
Title: Improvements in the Heatsealing of Webs, and Bags Produced Thereby.
Inventor: CALLON WILLIAM GEORGE
IPC: B31B19/64
Filed: 1966-12-07
Abstract: 1,156,849. Seaming non-metallic sheet material. PAKCEL CONVERTERS Ltd. 1 Nov., 1967 [7 Dec., 1966], No. 54778/66. Heading B5K. [Also in Division B8] The welds S forming the sides of a bag have curved ends 5, convex to the mouth 4 of the bag, to reduce the tendency for the weld to peel. The weld is formed by a welding bar (2) (Fig. 1, not shown) removably held by such screws (3) in a head containing a heater. The welds may be curved, instead of straight as shown, and the arounding of the end may extend across only part of the width of the weld, and may form an arc of a circle between a quarter and a half a circle. Where the bag is formed from a single sheet folded in two only one such weld will be provided.
Patent GB-1369276-A (GB)
Title: Vehicle with a bumper
IPC: B60R19/26
Filed: 1972-11-28
Abstract: 1369276 Vehicle bumpers and side guards DAIMLER-BENZ AG 28 Nov 1972 [3 Dec 1971] 54951/72 Headings B7B and B7J A vehicle having a shock-absorbing bumper 2 supported from rigid parts such as longitudinal bearers 4 through elastically yielding deformable members 3, the ends 5 of the bumper being bent towards the vehicle body adjacent the sides of the vehicle, also has shock-absorbing strips 8 secured to the bodywork and extending along the sides of the vehicle from adjacent the bumper ends 5 at least as far as the openings 9 of the adjacent wheel arches, the bumper 2 being so disposed between the strips 8 that its ends 5 are freely displaceable relative to the strips 8 both longitudinally and substantially transversely of the vehicle. The strips 8 preferably extend continuously along the sides of the vehicle, apart from interruptions at the wheel arches, and a respective bumper 2 is provided at each end of the vehicle with all the strips and bumpers located at the same height. For each bumper 2, the end edges 6 of the bent ends 5 are located in the same plane as the adjacent end edges 7 of the strips 8.
Patent GB-1089990-A (GB)
Title: Improvements relating to hydraulic braking systems
IPC: F16D65/22
Filed: 1965-12-30
Abstract: 1,089,990. Brakes; hydraulic brakes. DAIMLER-BENZ A.G. Dec. 30, 1965 [Dec. 31, 1964], No. 55226/65. Headings F2E and F2F. An hydraulic split circuit brake installation for vehicles comprises two brake circuits 5 and 7 connected in parallel to a tandem master cylinder 4 and to one or more wheel brake cylinders 28 so that either circuit is effective on failure of the other. A stepped piston 3, 25 working in chambers 26 and 27 of the tandem master cylinder feeds the same volume of hydraulic fluid through primary and secondary circuits, 5 and 7, respectively, to connected annular chambers 33 and 34 and to a central chamber 29 respectively formed by stepped opposed pistons 10 and 35 working in the doubly-acting cylinder disposed between one pair of adjacent ends of shoes 11 of a shoe drum brake of a rear wheel. Vented diaphragms 16 attached to recesses in the opposed ends of the pistons yield to prevent pressurization of the secondary circuit when both circuits are intact. Should failure of the primary circuit occur on brake application, the diaphragms are first applied to the piston ends and then the pressure in the secondary circuit rises to move the stepped pistons 10 and 35 and apply the brake. The increasing pressure in the secondary circuit operates a warning pressure switch to indicate failure of the primary circuit. Alternatively, diaphragms 16 are omitted, and pressure balancing piston means, Fig. 2 (not shown), are disposed in the master cylinder stepped piston, a differential pressure switch 41 being provided to indicate circuit failure. One of two annular pistons 9 is carried by the movement of the respective wheel brake piston 10 or 35 when either the primary or secondary systems are pressurized to apply brake 23, and pressurizes connected chambers 45 and 46. The pressurized fluid acts through circuit 6 to energize the brakes 24 of a front wheel or wheels, two-armed levers 12 pivoted on the shoe ends transmitting the servo-action of the shoes to the appropriate piston face 43 and annular piston 9. A piston slide valve 53 formed as an integral extension of the stepped master cylinder piston 3, 25 cuts off the replenishment reservoir 51 from the self-energized circuit 6 of the front wheels. An adjustment link 15 is provided between the other pair of adjacent shoe ends.
Patent GB-1273830-A (GB)
Title: Improvements in or relating to locking device
IPC: E05B65/19
Filed: 1969-11-12
Abstract: 1,273,830. Latches. ETABS DEFLEUR. 12 Nov., 1969 [30 July, 1969], No. 55280/69. Heading E2A. The sliding latch-bolt 5 which engages the keeper 1 of a boot-lid &c is normally released by manual left-ward movement of projection 6, 10 attached to it, but is prevented by a detent 15 on a barrel-lock except when this is turned to present a flat 15a allowing the movement.
Patent GB-554584-A (GB)
Abstract: 554,584. Drafting fibres. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION, and DAKIN, G. April 18, 1942, No. 5195. [Class 120 (ii)] In drafting fibres in spinning and similar machines the fibres are controlled between the drawing rollers by a loose control member arranged in close proximity to the forward pair of rollers and coacting with a conveying apron, the member being so fashioned, disposed, and constrained that it is capable of to and fro rotational and translational motions of limited range during the drafting process. As shown in Fig. 1 the loose control member 10 has end pieces or lugs 13 engaging extensions 14 on the side plates 6 of the cradle supporting the apron 3 and in Fig. 5, lugs or end-pieces 13<SP>1</SP> on the member 10<SP>1</SP> loosely engage the cap-nebs 15 of the drawing head. The lugs may have faces normal to the plane face of the member resting on the apron or may have faces inclined therto. The ends of the control member may have slots to engage the cap-nebs or constraining stops; the lugs or slots may be of hexagonal form.
Patent GB-1365257-A (GB)
Title: Electroacoustic transducers and their manufacture
IPC: H04R19/00
Filed: 1972-12-01
Abstract: 1365257 Electret transducers TELEFON AB L M ERICSSON 1 Dec 1972 [2 Dec 1971] 55731/72 Heading H4J A microphone or other electro-acoustic transducer comprises a fixed electrode 1, a movable electrode 2 and a layer of electrostatically polarized electret 3 between them. Electrode 2 comprises a layer of electrically insulating material and a metallic layer. The layer of electrically insulating material is between the metallic layer and the layer of electret 3. Electret 3 is separately electrostatically polarized before assembly of the transducer. Electrode 2 and electret 3 preferably constitute diaphragms coupled to vibrate in cascade. They consist of polyester film and P.T.F.E. respectively. Additional plastics film may be inserted between electrodes 1 and 2 to constitute diaphragms and to reduce mechanical distortion. A lead 7 has a part formed as a spring resting against electrode 1. Another lead 8 is connected to the metal of the movable electrode 2. Fixed electrode 1 has air channels 6.
Patent GB-1240193-A (GB)
Title: Hydraulic flow control system
IPC: F15B13/02
Filed: 1968-07-17
Abstract: 1,240,193. Shovelling machines. WEBSTER ELECTRIC CO. Inc. 17 July, 1968 [18 Aug., 1967], No. 56285/70. Divided out of 1,240,192. Heading E1F. [Also in Division F1] A hydraulic system of e.g. a backhoe, comprises a plurality of motors 122, 124, 126 .. each controlled by a respective manually operated valve assembly 134, 136, 138 .. constructed as described in Specification 1,240,192. The valve assemblies are connected in cascade to a swash-plate pump 148, so that liquid not directed to a valve assemblies outlets 90, 92 flows out through an excess flow port 62 to the inlet 50 of the next assembly, and so on in order of decreasing priority. The output of the swash-plate pump 148 is automatically adjusted by a spring loaded piston 154 controlling the swash-plate angle. The piston is subjected to the pressure in the excess flow line from the port 62 of the last assembly, the line being connected through a throttle 150 to a reservoir 146.
Patent GB-1441800-A (GB)
Title: Integrated circuits
IPC: H01L23/544
Filed: 1973-12-05
Abstract: 1441800 Transistor manufacture INTERNATIONAL BUSINESS MACHINES CORP 5 Dec 1973 [29 Dec 1972] 56361/73 Heading H1K To allow testing of transistor parameters during fabrication of an IC, a test transistor 13, having emitter 36A, base 37A and collector 40A corresponding to the respective regions of the IC transistors, is formed simultansously with the IC transistors, the test transistor regions each also including extended portions 36B, 37B, and 40B to which probe contact can be made before metallization. The test transistor regions 36A, 37A, 40A are identical in vertical and horizontal dimensions, and conductivity-determining impurity-profile, to the corresponding regions of the IC transistors. The regions may be formed by diffusion or ion implanatation, the IC transistors being isolated by PN junctions or recessed oxide formations. The test transistor may be located in a kerf outside the area occupied by the transistors in the IC.
Patent GB-1405606-A (GB)
Title: Valve members for interanl combustion engines and to methods  of making such valve members
IPC: F01L3/08
Filed: 1972-12-07
Abstract: 1405606 Making poppet valves SOC D'ETUDES DE MACHINES THERMIQUES 7 Dec 1972 [10 Feb 1972] 56455/72 Heading B3A [Also in Divisions F1 and F2] A method of manufacturing a liquid cooled poppet valve (see Divisions F1 and F2) having a stem 1 and a screwed in valve head 4, comprises drilling two separate spaced-apart ducts in the stem, or extruding the two ducts, and thereafter twisting the stem to cuase the ducts to extend helically about the longitudinal axis of the stem.
Patent GB-1316982-A (GB)
Title: Method of treating blood
IPC: G01N33/555
Filed: 1970-05-05
Abstract: 1316982 Automatic analysis; Coombs test N M HIRSCH 5 May 1970 [2 June 1969] 56545/70 Divided out of 1316981 Heading B1X In determining blood sample compatibility using the indirect Coombs test known volumes of human red blood cells and human blood serum are mixed and the mixture incubated and the incubated mixture is itself mixed with a wash solution capable of causing aggregation of the red blood cells, the aggregated cells are allowed to settle out of the mixture and the supernatant liquid is discarded, the aggregated cells are reacted with a known volume of Coombs serum, any agglutinated cells in the resulting mixture are allowed to settle out and the amount of antigen-antibody reaction in the initial cell-serum mixture is determined by determining either the quantity of agglutinated cells settled out or the quantity of non- agglutinated cells remaining in the supernatant liquid. The determination may be carried out in the Technicon-type apparatus shown, in which sets of marks P1, P2 relate to single peristaltic pumps P1, P2 or to series of separate pumps, and the aggregated or agglutinated cells at each settling stage settle out in horizontal coils 59, 69, 70 then 87, 89. The Coombs serum is introduced at junction 73 only when required for mixing at junction 85 with a test segment by selective operation of two-position valve 78 under control of timer 79. Down stream of decant junction 90, the supernatant liquid may be analysed for non-agglutinated cells by cell counting, by optical density measurement at 107 after haemolysis at 94, or by visual inspection after passing the liquid through a filter. Alternatively the whole of the reaction mixture after the final settling step may be dripped on chromatographic paper for visual inspection.
Patent GB-1175115-A (GB)
Title: Handmicrotelephone Set
Inventor: UNDERWOOD BRIAN LESLIE
IPC: H04M1/02
Filed: 1967-12-13
Abstract: 1,175,115. Telephone sets. ERICSSON TELEPHONES Ltd. 28 Aug., 1968 [13 Dec., 1967], No. 56718/67. Heading H4J. A telephone set housing 2 has two side recesses 9, to accommodate the cups 5, 6, of the handpiece, provided with slots 8 for blades 7, which when depressed by the cups of the handpieces cause operation of a cradle switch mounted within the housing. The blades are mounted on pivoted arms which operate the spring-return cradle switch. The cord 4 is led out from the front of the housing so as not to foul the blades 7, although the recesses 9 are so shaped that should the cord lie across the edges of a recess, fouling of the blade does not occur.
Patent GB-1166497-A (GB)
Title: Fuse for a Non-Rotating Projectile
IPC: F42C15/184
Filed: 1966-12-20
Abstract: 1,166,497. Projectile fuzes. FRATELLI BORLETTI S.A. 20 Dec., 1966 [23 Dec., 1965], No. 57035/66. Heading F3A. Fuze for non-rotated projectiles which can be set for instantaneous or delayed action on impact, comprises a slide 15 in the form of a rack carrying instant and delayed action percussion caps 7 and 9; a plunger 18 which is secured by a safety wire 17, in a position where it retains the slide in a safety position; a spring 8 for driving the slide; and a retarding mechanism 6 for delaying the movement of the slide into one of two armed positions in which the instantaneous or delay action percussion cap is aligned with a striker 4. Which armed position is adopted, is determined by the angular position of a rotatable stop 22, which engages a shoulder 15<SP>1</SP> on the slide with its surface 22<SP>1</SP>. Following removal of the wire 17, a projectile fitted with the fuze is fired, and the striker sets back into a blind bore 13 in the slide, whilst the pin 18 sets back into a retracted position where it is locked by a ball 20. The striker holds the slide against the action of the spring 8 until a spring 4 overcomes the inertial forces and withdraws the striker from the bore 13. The slide is locked in the armed position by a spring-loaded plunger 14.
Patent GB-1161574-A (GB)
Title: Improvements in Fuel Delivery Systems for Gas Turbine Engines
Inventor: LAVASH JOHN PAUL
IPC: F02C7/236
Filed: 1966-12-22
Abstract: 1,161,574. Gas turbine engine fuel systems. GENERAL ELECTRIC CO. Dec. 22, 1966 [March 24, 1966], No. 57389/66. Heading F1G. A fuel system for a gas turbine engine comprises first and second engine-driven fuel pumps, the first pump supplying fuel to the engine fuel scheduling means and the second pump supplying fuel for hydraulic actuation of auxiliary devices, means for maintaining the output pressure of the second pump above a level necessary for hydraulic actuation of the auxiliary devices, the two pumps having a total flow output capacity at any engine speed sufficient to meet the maximum requirements at that speed of the fuel scheduling means and the auxiliary devices, and the second pump having a flow output capacity equal to or in excess of the maximum requirements at that speed of the auxiliary devices, and means for supplying that proportion of the output of the second pump which is not used by the auxiliary devices from the pressure maintaining means to the delivery conduit of the first pump. An engine-driven fuel pump 64 supplies fuel to bruners 24 via a metering valve 20 across which a constant pressure differential is maintained by a by-pass valve 26. A further engine-driven fuel pump 62 supplies fuel as a hydraulic fluid for operating control mechanisms such as a servo control 32 for controlling the metering valve 20 and a stator vane control 40 for controlling variablepitch compressor stator vanes through an actuator 48. The outlet conduit 70 of the pump 62 is connected to the outlet conduit 16 of the pump 64 by a conduit 76 whereby the pump 62 can assist the pump 64 in supplying fuel to the burners 24. A pressurizing valve 72 maintains the discharge pressure of the pump 62 above the level necessary for operation of the control mechanisms. The capacity of the pump 62 is selected to be sufficient to meet the requirements of the control mechanisms at any engine speed, while the combined capacity of the two pumps 62, 64 is selected to be sufficient for the maximum fuel flow to the burners at any engine speed.
Patent GB-1247160-A (GB)
Title: Fluid metering device
Inventor: ANDREWS DAVID KEITH
IPC: F04D15/00
Filed: 1968-12-04
Abstract: 1,247,160. Centrifugal pumps. DOWTY FUEL SYSTEMS Ltd. Nov.27, 1969 [Dec.4, 1968], No.57461/68. Addition to 974, 958. Heading F1C. [Also in Division F2] The centrifugal pump inlet valve of the parent Specification has a modified closure member comprising a movable cylinder 28 co-operating with a stationary member 23 shaped as shown to provide an approximately exponential relationship between the flow cross-sectional area and the position of the actuator piston (35). In a modification (not shown) conical surfaces 26 and 43 can be replaced by a continuously curved surface.
Patent GB-1215140-A (GB)
Title: Electric heating of gases
IPC: F24H3/04
Filed: 1967-12-20
Abstract: 1,215,140. Preheating vapour phase oxidation reactants. FARBENFABRIKEN BAYER A.G. 20 Dec., 1969 [2 Jan., 1967], No.57852/67. Heading C1A. [Also in Divisions H3-H5] In preheating reactants e.g. N 2 , H 2 , C1 2  and SiCI 4 , TiCl 4  and AlC1 3  to be oxidized in the vapour phase by the process of Specification 1,062,579, said reactants in the vapour phase are passed through a bed 4 e.g. of carbon or graphite surrounding a resistance heating element 5. The gases may flow downwardly or may flow upwardly to fluidize the bed.
Patent GB-1311316-A (GB)
Title: Reinforced rubber shear pad
IPC: B61G7/10
Filed: 1970-12-04
Abstract: 1311316 Rail-vehicle couplings GENERAL TIRE & RUBBER CO 4 Dec 1970 [15 Dec 1969] 57854/70 Heading B7T [Also in Division F2] The coupler arm 14 of a railroad car is biased into a central coupling position by supporting it, between its pivoted and coupling ends, on a saddle 12, which is mounted on the coupler housing 2 by a rubber spring 10. The spring comprises (Fig. 2) a cylindrical rubber body 20, having a cavity 26 and annular grooves 28, 30, 32, bonded between two rigid plates 22, 24. The spring is stressed in shear, compression being resisted by rings 34.
Patent GB-1276529-A (GB)
Title: Improvements in or relating to switching apparatus
IPC: H01H43/10
Filed: 1969-11-26
Abstract: 1276529 Snap action switches; timer switches LUMALAMPAN AB 26 Nov 1969 [27 Nov 1968] 57876/69 Heading H1N A timer switch having at least one pair of poles comprises contact arms 8, 9 snap-action operated by pivoted levers 22, 23 through spring blades 20, 21, the pivoting being concurrent and in opposite directions. One end of each lever is located in the actuator 7 such that when it is pushed upwards from the position shown, the levers pivot about points 24 until spring pivot 25 crosses a line joining the notch 26 on the respective support 10, 11 and the contact, the contacts then being snapped open. The resulting pivoting moment of force acting on the actuator, in either the open or closed switch position, due to the springs acting about the lever pivot is such as to maintain the actuator position. The switch operation may be timed by rotatable scales provided on the front of the switch, Fig. 1 (not shown), which are driven by an electric motor, the switch then being operated by the cams on the setting scales or the member 7 may be manually operated.
Patent GB-1200068-A (GB)
Title: Electrostatic image development
IPC: G03G15/08
Filed: 1967-12-21
Abstract: 1,200,068. Xerographic development. RANK XEROX Ltd. Dec.21, 1967 [Dec.27, 1966], No.58019/67. Heading G2H. In an electrostatic development apparatus, drum 12 rotating on shaft SH-1 is changed by a corona discharge device 14 and a latent image is formed on the drum by lens 10, the drum then passes through a developer station A, a transfer station B and a cleaning station C. At the developer station A, toner T is blown on to rotating brushes 28-30 by a fan unit 31 which causes the toner powder to circulate from sumps 26 through conduits 32, 33 and back into the housing 26. Each brush comprises a hollow conductive cylinder 38 mounting bristles of rabbit fur or dynal, the three brushes being supported on mandrels 35-37 splined on to pulleys 42-44 driven by a motor 7. Axial movement of the shafts is achieved by the inter-position of wobble plates 48- 50 between the mandrels and the pulleys. This lateral movement of the brushes aids the formation of powder clouds to facilitate the developing process. At station B the image is transferred to web P by a corona discharge 23 and at 25, the developer material is fused to the web. The drum 12 is cleaned at C by a further corona discharge device, brushes 26 and a lamp.
Patent GB-1151785-A (GB)
Title: A Process for Manufacturing a Fixing Element for Telephone Apparatus.
IPC: H04M1/02
Filed: 1966-05-11
Abstract: 1,151,785. Making fasteners. SOC. ITALIANA TELECOMUNICAZIONI SIEMENS S.p.A. 11 May, 1966 [29 Jan., 1966], No. 58163/68. Divided out of 1,151,784. Heading B3A. [Also in Divisions E2, H2 and H4] In a telephone handset such as described in Specification 1,151,784 the microphone and receiver transducers are each retained by a stamped sheet metal piece which also provides electrical connection. The microphone capsule 70 (Fig. 1) is retained by a metal strap 102 comprising two parts 108, 109 (Fig. 2) held together mechanically and insulated electrically by two opposite plastics insulators 110. The strap is stamped in two successive stages and after the first stage the parts 108, 109 are held together by two residual pieces 112. The insulators 110 are connected together through holes 117 in the parts 108, 109, which are thereby clamped together. The residual pieces 112 are then removed. Two terminals 114, 115 are for connecting wires. Opposite tongues contact the capsule electrically. Terminations 118 bend over and fit into grooves in a circular ridge 122 on the base-plate 28. The receiver capsule 82 (Fig. 4) is retained by two metal parts 124, 125 (Fig. 5) electrically insulated from one another. Parts 124, 125 are stamped out in two stages and after the first stage are held together by residual pieces 128. Two opposite plastics insulators 130 (Fig. 6) are applied and connected together through holes in parts 124, 125. Pieces 128 are then removed. Electrical contact with the receiver 82 is ensured by spring contacts 132. Terminals 136 serve for connection with conductors.
Patent GB-1209192-A (GB)
Title: Pipe supporting device
IPC: F16L3/223
Filed: 1967-12-21
Abstract: 1,209,192. Pipe supports. GEORG FISCHER A.G. 21 Dec., 1967 [23 Dec., 1966], No. 58219/67. Heading F2P. A pipe support for riser pipes 76, 78, 80, Fig. 2, in a masonry aperture 4 incorporates at least two longitudinal parallel supports (52). Fig. 3 (not shown), having uniformly distributed positioning means (52c) and levelling bolts 54, with pipe clamps 56, 58, 60 engaging the supporting elements, the possible positions of the pipe axes being located at the crossing points of an imaginary grid. Each pipe is retained by a sleeve 70, 72 or 74. The device may be clamped to the floor by strips 86, (90), and bolts 88.