baber/WOPTO huggingface dataset:
Patent GB-1116952-A (GB)
Title: Non-reciprocal microwave apparatus
IPC: H01P1/195
Filed: 1965-08-31
Abstract: 1,116,952. Non-reciprocal phase-shifters and attenuators. WESTINGHOUSE ELECTRIC CORPORATION. 31 Aug., 1965 [14 Sept., 1964]. No. 37129/65. Heading H1W. Non-reciprocal phase-shift or attenuation is obtained by producing remanent closed-loop magnetization in a ferrite element having a square-loop magnetization characteristic. The element is situated on the axis of a waveguide and is magnetized in a plane parallel to the direction of propagation. As shown, five elements 11-1 to 11-5 may be selectively magnetized by current pulses applied to appropriate portions of an axial conductor 15. Feeding conductors 17 to 23 extend transversely through half-wave spacing blocks 11-6 to 11-10 which have approximately the same dielectric constant as the ferrite elements. The elements are graded in size and produce phase shifts respectively of #/4, #/8, #/16, #/32, #/64, the last figure representing the incremental phase-shift of the device.
Patent GB-798508-A (GB)
Title: Improvements in frequency dividing circuits
IPC: H03K5/00
Filed: 1955-12-28
Abstract: 798,508. Counting-apparatus. HOBSON, Ltd., H. M., FELLOWS, H., and HEAD, R. E. A. June 27, 1956 [Dec. 28, 1955], No. 37135/55. Class 106 (1). [Also in Group XXXVIII] A frequency-dividing circuit; particularly for a flowmeter, comprises a chain of electronic frequency dividers to which pulses are fed through a gate opened during alternate half cycles only of an oscillator having a variable mark/space ratio. The flowmeter may, as described in Specification 752,496, comprise a transmitter 21, 22 which produces pulses at a rate equal to the rate of volumetric flow of a liquid in a pipe 10, an amplifier 23, a shaper 24, binary dividers 26<SP>1</SP>-26<SP>4</SP> and an amplifier 27 driving a counter 28. In the present arrangement, the mark/space ratio of the oscillator 29 is varied manually or automatically (as described in Specification 788,798), [Group XXVIII], in accordance with the density of the liquid so that the counter 28 registers the mass-flow. A rate-meter 38, 39, such as that described in Specification 798,507, [Group XXXVIII], may be connected to the output of the first divider so as to register the rate of mass-flow. The oscillator 29 is a multivibrator, and the mark/space ratio is varied by a potentiometer arrangement 15 varying oppositely the grid potentials of the valves V1, V2. The anode of V2 is connected through a cathode follower 30 to the cathode of a triode gate 25. During the mark semi-periods, the cathode follower is cut off and the grid of the gate 25 is held slightly below cut-off so that input pulses, which, after shaping by a monostable flip-flop 24, are applied positively to the grid of the gate 25, cause conduction in the gate and negative output pulses at the anode. During the space semi-periods with the cathode follower conducting, the gate remains unconducting even on receipt of an input pulse.
Patent GB-634444-A (GB)
Title: Improvements in or relating to electrically operated temperature measuring apparatus
IPC: G01K1/08
Filed: 1946-12-17
Abstract: 634,444. Temperature-variable resistances. SANGAMO WESTON, Ltd., and McBRIDE, M. G. Dec. 17, 1946, No. 37188. [Class 37] A device for measuring temperatures up to approximately 500‹ C. comprises a heatsensitive resistance element consisting of a tightly wound helix of platinum or nickel resistance wire, wound on an anodised aluminium former, and enclosed in one end of a hermetically-sealed, stainless steel tube, connections to the resistance element being made by ductile or flexible conductors with fibreglass insulation in an intermediate part of the tube which may be shaped to avoid obstacles to two conductors of a metal-to-glass seal at the other end of the sealed tube. The resistance element 11 is wound in the grooves 14a and 14b of a two-start thread on the surface of a cylindrical former 15, the threads being connected together by a diametral slot 16 across the base of the former 15. The surface of the former 15 is anodised to provide an insulating covering, and the former, together with the resistance wire wound round it, are enclosed in a thin, tightly-fitting alumina-coated aluminium sleeve 25, which itself is fitted into one end of a stainless steel tube 12. The former 15 and its sleeve 25 are held rigidly in position by mica washers 26, 27 and 28 at each end. The leads of the resistance element are brought up through fibre-glass insulation to a metalto-glass seal 34 with two conductors 33, so that by soldering the metal flange 35 of the seal to an extension 37 of the stainless steel tube 12, and also sealing the other end of the tube 12 by a soldered disc 29, the resistance element is contained in an hermetically sealed compartment, which may, if desired, be filled with an inert gas. Further connections are made externally to the resistance 11 by a rubber-covered cable 40 terminating in two sockets 43 which can be plugged onto the external portions of the conductors 33 of the metal-to-glass seal, the connections being kept in position by a screwed gland nut 51.
Patent GB-1421719-A (GB)
Title: Ramjet powered missiles
IPC: F02K7/10
Filed: 1974-08-23
Abstract: 1421719 Ramjet units D B WILKINSON 23 Aug 1974 [28 Aug 1973] 37258/74 Heading F1J [Also in Division F3] A solid fuel ramjet powered missile comprises: a fuel grain 20 with an air passage 35 therethrough; a secondary combustor 26; an air inlet 28 with means 30 for directing a major portion of the air into the secondary combustor; and a channel 34 for providing primary air to the forward end of the fuel grain. A valve 37, responsive to a command signal from a flight control section of the missile or responsive to a pre-set program, controls the supply of primary air to provide a constant thrust as the area of the fuel grain changes with burning. The fuel grain comprises magnesium and aluminium with a rubber binder; a small amount of oxidizer may be added in an amount insufficient to maintain combustion in the absence of air. The missile can be adapted for use with a rocket-ramjet engine by providing a rocket fuel grain in chamber 26 and configuring nozzle 24 for hybrid operation.
Patent GB-888836-A (GB)
Title: An improved surgical instrument
IPC: A61B17/24
Filed: 1960-10-31
Abstract: 888,836. Curettes. MESSINES DEVELOPMENTS Ltd. Oct. 31, 1960 [Nov. 3, 1959], No. 37282/60. Class 81 (2). An instrument for cutting remnants of tonsil comprises a cutting blade set adjacent to the end of a tubular holder so that blood and particles of tissue can be withdrawn through the tube as the operation proceeds. The cutting head comprises a tubular, internally - threaded portion 12, Figs. 5, 6, at the outer end of which a cutting blade 17, having a sharpened edge 16, is supported on lateral extensions of the port 12, so as to leave apertures 15 through which tissue &c. may pass into the interior of the head. The blade portion is set slightly obliquely as shown, to facilitate cutting, the cutting edge 16 being forward of the blunt edge 18. The head is screwed on the end of a curved tubular shank 2, Fig. 1, and secured by a lock-nut 14, while the shank passes through a handle 1 and communicates with an outlet 6, which carries a loose collar 7 to which a flexible aspirating tube 8 may be attached. The collar is free to rotate on the stem 6, so that, in use, the instrument can be rotated without restraint.
Patent GB-1475539-A (GB)
Title: Polyurethane foam and composite materials produced therefrom
IPC: B32B5/24
Filed: 1974-08-28
Abstract: 1475539 Foam coated material BAYER AG 28 Aug 1974 [28 Aug 1973] 37576/74 Heading B2E [Also in Divisions B5 and C3] Composite materials prepared using coating techniques comprise a layer of a plastics materials or a woven or knitted textile material or non-woven web adhered to a polyurethane foam which has a density of 0.04 to 0.40 g/cm<SP>3</SP> and which has been produced by the churning process from a non-ionic polyurethane aqueous dispersion having (a) a solids content of greater than 45% by weight of polyurethane, (b) a viscosity of 10 to 70 seconds outflow time from a Ford cup with a 4 mm nozzle and (c) a particle diameter of less than 1.0 micron (see Division C3). The plastics sheet material is preferably one derived from PVC or is a homogeneous or microporous polyurethane sheet. The composite material may be prepared by (a) forming on or applying to a release support a plastics sheet material, spread coating on the plastics sheet material a foam derived from the polyurethane dispersion, drying and then removing the release support, (b) spread coating on a release support a polyurethane foam derived from the polyurethane dispersion, applying a plastics sheet or textile material or non-woven web to the still liquid foam, drying and then removing the release support or (c) as for (b) but first solidifying the liquid foam and then applying a liquid plastics coating compound which is solidified and the release support removed.
Patent GB-1499616-A (GB)
Title: Resistors with an integral thermal fuse
IPC: H01H85/02
Filed: 1976-09-10
Abstract: 1499616 Fusible cut-outs ALLEN-BRABLEY CO 10 Sept 1976 [11 Sept 1975] 37606/76 Heading H2G [Also in Division H1] A moulded resistor has a thermal fuse 12 disposed in the conductive path between terminal electrodes 2, 3. As shown in Fig. 5 the fuse comprises a substrate 13 with conductive layers 15 interconnected by a fuse link 16. Fuse terminals 18, 19 are adhered or soldered to the substrate. In modifications the fuse comprises: (i) (Fig. 12, not shown) a substrate (30) with through holes (31) filled with fuse material, e.g. cadmium-silver alloy; (ii) (Fig. 14, not shown) a substrate (34) having through holes (35) lined with cadmium; or (iii) (Fig. 16, not shown) a substrate (39) with eight fusable bands (41) disposed equidistantly around its periphery.
Patent GB-1346203-A (GB)
Title: Staple cartridge with drive belt
IPC: A61B17/068
Filed: 1971-08-11
Abstract: 1346203 Staple cartridge UNITED STATES SURGICAL CORP 11 Aug 1971 [13 Aug 1970] 37647/71 Heading A5R A staple cartridge 10 for housing a plurality of surgical staples 24 comprises an elongated main body 12, a belt 18 rotatably mounted in the longitudinal direction of the main body, a plurality of staple grooves 94 evenly spaced about said belt, driving surfaces 92 spaced about said belt, driving means 20 for engaging said driving surfaces and for controlling rotation of said belt, means 68 for activating said driving means, a pusher element 16 for singly ejecting and bending said staples, and a cover 14 for maintaining the integrity of the cartridge elements. The cartridge further comprises a biasing spring 22, and a tab 90 for moving said biasing spring out of the plane of said staple grooves during rotation of said belt. Upon movement of the drive shaft 64 of a suturing instrument in a direction 100, the pusher 16 moves in the same direction and contacts a staple 24 nearest the anvil 58. As a result of the interaction between the crossbar of staple 24 and the upstanding tabs 90, the biasing spring 22 is cammed in direction 102. When the angled wall (72) of the slot 68 contacts the driving ball 20, said ball is forced against the cylindrically formed wall (96) of the driving surface 92 and causes movement of belt 18. The belt continues moving until the pusher 16 has completed its formation of the staple 24 around the anvil 58 (Figs. 4, 7 not shown). During the return stroke of the pusher, the face 70 of the slot 68 contacts the ball 20 and said ball rides up the wall (98) of the driving surface 92 and continues moving until it contacts the internal depression 74. Then the ball seats itself in the next successive driving surface 92. The tabs 90 on the arms (88) are free from the effects of the pusher when it returns to its position in Fig. 1, and the region of the biasing spring near the anvil moves upwards into its original position (Fig. 1). The staple nearest the anvil is thus urged upwardly in the cartridge 10 and the cartridge is then ready for its next firing.
Patent GB-1122788-A (GB)
Title: Bag making machine incorporating means for checking the bag closures
IPC: B31B19/74
Filed: 1965-09-03
Abstract: 1,122,788. Checking bags in bag making machines. WINDMOLLER & HOLSCHER. 3 Sept., 1965 [11 Sept., 1964; 1 June, 1965; 16 June, 1965; 13 July, 1965], No. 37764/65. Heading B5D. In a machine for making cross-bottom bags, devices for checking the correct formation of the bag bottoms operate a movable deflector 25, Figs. 1, 2 (latter not shown), to cause defective bags to be removed before they are delivered to a delivery station. In one embodiment, the completed bag 5, Fig. 1, is fed in the direction 8, between rollers 6, (7) of the checking arrangement 2. Photoelectric light barriers 17, 19 and mechanical sensing devices 13, 15 check the position of the outer and inner edges 14, 16, 18, 20 of the bag bottoms 9, 10, while photo-electric reflection cells 21, 22 check the position of non-reflecting marks on bottom cover sheets 11, 12. The checking circuit, Fig. 5 (not shown), is reset as each bag approaches the device by cam operated switches (53), (63), the rotation of cams (67), (64) being synchronized with the feed of the bag. In a second embodiment, Fig. 6 (not shown), the mechanical sensing devices are replaced by photo-electric reflection cells (83), (84), detecting light reflected from plates (98), (99), when these are not covered by the bag bottoms. Additionally, smaller deviations are detected by photo-electric cells (89)-(92) which cause indicating lamps (94)-(97), Fig. 7 (not shown), to light up, but do not cause rejection of the bags. For checking cross-bottom valve bags, an additional metal detecting device 108, Fig. 8 (not shown), for sensing the position of an aluminium strip (109) on each valve sheet (107), may be provided. For checking the formation of cross-bottom bags made from multi-layer tubing, two reflection-sensitive photo-electric cells (127), (128), Fig. 15 (not shown), may be included to check that the ends of the multi-layer tube elements (120) are opened correctly, see also Fig. 12 (not shown), the cells sensing non-reflecting marks (126), printed on the inside of the inner ply at each end of each bag tube element. Operation of the deflector 25 is then delayed until the defective bag reaches it, by passing the operating pulse from the fault detector through a chain of bi-stable devices (131)-(135), Fig. 16 (not shown), controlled by pulses from a cam operated switch (139). In order to permit the use of the various checking arrangements with bags of different lengths, the devices are all mounted to be movable in a direction transverse to the direction of motion of the bags.
Patent GB-362173-A (GB)
Title: Improvements in pendulum clocks for signalling purposes
IPC: G04F3/02
Filed: 1930-12-15
Abstract: 362,173. Clock pendulums. LANDIS ET GYR SOC. ANON., 1, Hofstrasse, Zug, Switzerland. Dec. 15, 1930, No. 37804. Convention date, Dec. 17, 1929. [Class 139.] In a pendulum clock device for giving signals at pre-arranged intervals, adjustment of the intervals over a wide range is obtained by calibrating the pendulum rod 4 and adjusting the position thereon of the bob 5 by means of a set-screw 13.
Patent GB-308168-A (GB)
Title: New or improved tyre chains for motor vehicles
IPC: B60C27/10
Filed: 1927-12-21
Abstract: 308,168. Dold, H. H. S. Dec. 21, 1927. Divided on 308,291. Tread bands.-A non-skid device comprises a pair of side-chains A, B, and a continuous crosschain C formed of twisted links with interposed straight links D which are connected to the sidechains by split or welded links E. The sidechains may also be formed of twisted and straight links. A device (not claimed) for connecting the ends of the side-chains comprises a. lever G which is attached to one end of the chain, passed through a link at the other end, and' locked by a shackle H.
Patent GB-932944-A (GB)
Title: Bubble making device
Inventor: BILLINGHAM LESLIE CYRIL
IPC: A63H33/28
Filed: 1960-11-15
Abstract: 932,944. Toys. CHIEFTON PRODUCTS Ltd. Nov. 10, 1961 [Nov. 15, 1960], No. 39220/60. Class 132 (3). A bubble forming device comprises a receptacle 2 with a cap 5 holding a bubble forming solution and a wand one end of which is formed with a loop 8 wherein the wand when not in use is removably held in the closed receptacle by the cap and is removable with a sealing disc 10. The screwed-on cap has a washer 12 and a central aperture through which projects the boss 11 of the sealing disc 10 which has a dependent wire 7 with the loop 8. The disc may be integral with the cap or the disc may have upper and lower peripheral ribs engaging the edge of the container and the washer 12 inside the cap. The wand may have only a small projection for centralising the disc in the aperture of the cap.
Patent GB-1160406-A (GB)
Title: Augering Machine for Mining Upwardly and Downwardly at Steep Angles.
Inventor: YOUNG WILLIAM G
IPC: E21C35/06
Filed: 1967-08-18
Abstract: 1,160,406. Auger type, mineral-mining machines. SALEM TOOL CO. 18 Aug., 1967, No. 38231/67. Heading E1F. In the hydraulic operating circuit of an auger type, mineral-mining machine a counter balance valve is incorporated in at least one of the supply lines to the motor of the rotary drive of the auger and to the motor of the hoist for auger sections. The valves are to ensure smooth operation of the first motor when the machine is working at an angle to the horizontal and to prevent drift of the second motor when an auger section is being lowered by the hoist. Each counter balance valve involves a check valve permitting flow in one direction through the associated supply line, a relief valve permitting flow in the opposite direction in the supply line and a by pass line from the relief valve to the other supply line of the motor associated with the counter balance valve.
Patent GB-344937-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B15/58
Filed: 1929-12-14
Abstract: 344,937. Circular knitting-machines. HOLMES, H. H.-and WILDT & CO., Ltd., Adelaide Works, Leicester. Dec. 14, 1929, No. 38371/29 and 8508/30. [Class 74 (ii).] A circular knitting - machine i s provided with a yarn feeder which, when moved into feeding position, does not bring its yarn close enough to the needles for the yarn to be taken unaided, and a yarn projector which engages the yarn between the feeder and the trapper to bring the yarn to a position to be taken by the needles. A feeder 15, e.g. for a splicing yarn, projector 21 and trapper 17 may be disposed at a position above another feeder or feeders 10, 11, 12, e.g. for the ground yarn, and its associated projector 22 and trapper 25. Severing means 26 may be provided. The yarn projector is so situated or guided as to cross the needle circle at a position at which the needles are depressed by the stitch cam. The yarn feeders are preferably slidably mounted and have interfitting portions. Specifications 322,232, 327,958, 327,987, 327,988, and 328,026, [all in Class 74 (ii), Knitting &c.], are referred to.
Patent GB-1021480-A (GB)
Title: Improvements in or relating to vehicle gear-boxes
IPC: F16D23/06
Filed: 1963-09-30
Abstract: 1,021,480. Positive clutches. ANDRE CITROEN S.A. Sept. 30, 1963 [Sept. 28, 1962], No. 38393/63. Heading F2C.  A synchronizer for connecting a first-gear pinion 7 to a driving pinion 1 comprises an axially movable sleeve 4 splined to the pinion 1 and the end of which has dog teeth 10 engaging axial grooves 11 in a sleeve 12 integral with a friction cone member 13 engageable with the pinion 1, a spring friction ring 17 coupling the sleeves 4, 12 together when contacted by the teeth 10. The sides of the teeth 10 have tapered balk surfaces 15, 151, Fig. 4 (not shown), and the end portions 111 of the axial grooves are provided with complementary surfaces 18, Fig. 5 (not shown), on the side of the grooves effective during gear change with the drive pinion 1 rotating, such surfaces not being provided on the other side of the grooves to avoid possible obstruction of the teeth 10 during gear change with the pinion 1 stationary. Upon final engagement of the teeth 10 in the grooves 11<SP>1</SP> the sleeve 4 engages dogs 9 on a ring 8 splined to the hub portion of the pinion 7, to couple the latter to the drive pinion 1.
Patent GB-868306-A (GB)
Title: Combined viewfinder-rangefinder for a photographic camera
IPC: G03B13/20
Filed: 1957-12-10
Abstract: 868,306. View and range-finders for photographic cameras. AGFA A. G. Dec. 10, 1957 [Dec. 20, 1956], No. 38434/57. Classes 97(1) and 98(1) In a combined view and rangefinder in which an inverted Galilean viewfinder 1, 2 has an inclined semi-reflecting mirror 11 to combine two beams of a short home-base coincidence type rangefinder and optically to superimpose indicia defining fields of view, on the object viewed, the indicia are viewed through eyepiece 1 and through only a positive component 9 of the negative objective 4, 9 in the reflected range-finder beam. The indicia are viewed by reflection in prism 5 and consist of perforations 7a, b, c in plate 7 illuminated by ambient light through window 6 of ground glass having a clean central portion for the range-finder. Part 8 of prism 5 is non-reflecting and a mask 25 may be provided. Alternatively the mount of lens 4 may be formed as a mask and thus replace 25. Discs 15 and 16 are controlled by slides 23 and spring 22 to cover perforation 7c when 7b are uncovered or viceversa or to cover both. Lever 19 moves plate 7 to compensate for view-finder parallax. Plane parallel plate 3 is rotatable about 3a for rangefinding or alternatively, a system of lenses, one of which is pivotable, can be used. Specifications 834,240 and 856,837 are referred to.
Patent GB-1397434-A (GB)
Title: Evomonoside derivatives
IPC: C07C/
Filed: 1972-08-17
Abstract: 1397434 Evomonoside derivatives HOECHST AG 17 Aug 1972 [19 Aug 1971] 38438/72 Heading C2U The invention comprises compounds of formula (wherein R 1  is a C 1-8  aliphatic, cycloaliphatic, aromatic or araliphatic carboxylic acyl radical), and their preparation by converting evomonoside to a 2<SP>1</SP>,3<SP>1</SP>-(alkyl orthoalkanoate) thereof, 4<SP>1</SP>- acylating the latter, and then clearing the orthoester group, e.g. by contacting with aqueous glacial acetic acid at 0-110 C. Cardiotonic compositions for oral and parenteral administration comprise a compound I and a carrier.
Patent GB-900316-A (GB)
Title: Improvements in or relating to means for coupling articulated roof bars for mines
IPC: E21D17/086
Filed: 1958-12-01
Abstract: 900,316. Mine roof supports. EGGEMANN, W., and CAMPENHAUSEN, E. VON, [trading as SCHWARZ KOMM. - GES., HERMANN]. Dec. 1, 1958 [Dec. 4, 1957; March 18, 1958; April 22, 1958], No. 38596/58. Class 20 (2). A mine roof bar, Fig. 6, has at one end a tongue 30 provided with a pivot pin 32 and a pin 31. The tongue 30 is introduced between the fork end of an adjacent bar 10, the pin 31 sliding on guides 29a on either internal side of the fork until it is behind their surfaces 34 when the pin 32 will be between notches 33 in the ends of the fork. A wedge member 19 is introduced into an aperture 17 opening into the inside of the fork, the pin 31 being received by an inclined slot therein. A wedge 39, Fig. 10, may be inserted behind the member 19 in the aperture 17 having two sharply-inclined surfaces 38a. In a modification, the wedge 39 is placed in a separate slot behind the slot 17 and acts on the member 19 through a sliding block 45 (Fig. 14, not shown).