baber/WOPTO huggingface dataset:
Patent GB-897868-A (GB)
Title: Improvements in and relating to switching apparatus for use at low temperatures
IPC: G11C11/44
Filed: 1959-02-25
Abstract: 897,868 Superconductor circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 25, 1959 [Feb. 27, 1958], No. 6592/59. Class 40 (9). The horizontal and vertical conductors 20- 23, and 25-28 of a matrix are joined at the cross-points by superconductor links 43. Each link is normally maintained resistive by a persistent current in a superconducting loop (not shown in Fig. 2) described in Specification 873,624. The persistent current in a loop is stopped to allow the corresponding link to conduct between a pair of horizontal and vertical conductors. Signals from input stages X1-Xm can thus be switched to any of the output stages Y1-Ym. Superconductor loops.-A loop 61, Fig. 1, of "hard " material with a high critical magnetic field includes an insert 62 of " soft " material with a low critical field. A control current in a single conductor 59 or 60, Fig. 3, is insufficient to drive the insert 62 resistive but coincident control currents in the two conductors drive the insert resistive and any circulating current is dissipated. Control currents in the directions shown in Fig. 5b link no resultant flux with the loop and no circulating current is induced in the loop when insert 62 becomes superconducting again as the control currents cease. The control currents of Fig. 5a leave a circulating current in the loop. The limb 63 is of small cross-section so as to produce a strong field adjacent the link 43. Matrix.-In Fig. 6, horizontal and vertical conductors X1, X2 and Y1 to Y3 are bridged by links 78 of " soft " superconductive material. Superconductive loops 89 of skew shape are each arranged so that a limb 91 of small crosssection abuts a link 78. The " soft " inserts 90 of the loops lie beneath cross-points of control conductor X<SP>1</SP>1-X<SP>1</SP>2 and Y<SP>1</SP>1-Y<SP>1</SP>2. Specification 862,178 also is referred to.
Patent GB-249134-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K27/04
Filed: 1926-03-11
Abstract: 249,134. British Thomson-Houston Co., Ltd., (Assignees of Alexanderson, E. F. W.). March 11, 1925, [Convention date]. Alternating-current motors; exciting; commutating windings.-A commutator motor is provided with angularly-displaced exciting windings for driving the motor in opposite directions and these windings are arranged so that, together, they produce the commutating field flux of the motor. An alternating-current motor 4, Fig. 1, is provided with a compensating winding 7 and two angularly-displaced exciting windings 8, 9. By means of the switch 10, either of the windings 8, 9 may be connected in series with the armature according to the direction of rotation desired. When the switch makes connection with the contacts 11, 12 the winding 9 is in series with the armature 4 and the compensating winding 7. The winding 9 is so positioned as to induce a commutating component of flux which is proportional to the armature current. An additional commutating component is obtained by connecting the windings 8, 9 in series across a tertiary winding 3 on the supply transformer 1. The strength and phase of this additional component may be adjusted by means of resistances 20, 21. For reverse rotation of the motor, the switch arms are moved on to the contacts 13, 14 whereby the winding 8 is connected in series with the armature. In a. modification, Fig. 4, the main field is produced by a coil 8'. A winding 9<1> and a resistance 20<1> are connected in series across the winding 8', and by means of this resistance the commutating component of the flux may be varied. Additional control may be obtained by the use of a resistance 21<1> connected through a switch 10<1> between a tapping on the auto-transformer 1<1> and the connection point of the winding 8<1> and resistance 20'. The motor may be reversed by connecting the compensating field winding 7<1> and the resistance 21<1> to the terminal of the exciting winding 9<1>. The windings on the field core. may consist of uniform or non-uniform coils.
Patent GB-545753-A (GB)
Title: Improvements in rivetting pliers
IPC: B21J15/38
Filed: 1941-05-29
Abstract: 545,753. Pliers. LUCAS, S. May 29, 1941, No. 6886. [Class 61 (ii)] Pliers for riveting comprise a head a carrying a rivet die or snap b, a lever arm d fixed to the head a, a lever arm e pivoted to the head a and a sliding plunger c actuated by an adjustable length link h, i acting between the rear end c<SP>1</SP> of the plunger and a notched abutment plate f on the lever arm e, a ball or roller j being interposed between the link and plunger which latter is moved in the rearward direction by a spring k. The closing movement of the lever arms is limited by stop plates f, l and the opening movement by interpivoted links m<SP>1</SP>, m<SP>2</SP>.
Patent GB-1082202-A (GB)
Title: Improvements in or relating to fluid flow entries
IPC: B64D33/02
Filed: 1963-02-20
Abstract: 1,082,202. Wind tunnels; Jet flaps on aircraft; air cushion vehicles. E. J. GABBAY. Feb. 20, 1964 [Feb. 20, 1963], No. 6914/63. Headings B7G and B7K. [Also in Divisions F1 and F2] In a fluid flow entry, the entry nosing or cowl is shaped so as to induce substantially constant suction, and hence constant fluid velocity, over its entire inflow contour. This prevents losses due to separation of the rapidly turning stream. In the case of a slot-type entry having a uniform width 2H, Fig. 1, the length in the direction at right-angles to the width being assumed to be infinite, equations are given for determining the co-ordinates of each point X, Y on the curved contour of the entry nosing in terms of the half width H, the angle a and the ratio V between the constant velocity V FS  along the contour and the uniform velocity V C  of the fluid jet. The same equations can be used for slots of other shape by putting H=R/2, where R is the principal radius of curvature of the entry cross-section at the point thereon under consideration. The contour at each of a number of selected points is thereby calculated, and the shaping between these points is obtained by fairing lines. If the entry profile so determined appears too thick, the X, Y co-ordinates may be reduced by as much as 10% without appreciable reduction in efficiency. Interference effects at the sharp junctions between adjacent walls of an entry of, e.g. rectangular, triangular or semicircular cross-section, can be suppressed by slotting back as at 10, Fig. 2, and providing short local segments 12 of secondary leading edge 13 somewhat aft of the main leading edge 13. The invention is applicable to air intakes for lift or propulsion engines in aircraft; entries for ducted fans, as for air-cushion craft; wind tunnel bell-mouths; auxiliary entries as for jet flaps; and induction slots for wing boundary layer control.
Patent GB-724303-A (GB)
Title: Improvements in cooling unit
IPC: F25D3/00
Filed: 1953-03-13
Abstract: 724,303. Refrigerators. DOLE REFRIGERATING CO. March 13, 1953 [Jan. 12, 1953], No. 6995/53. Class 29. A cooling unit for use in a cold storage room or a truck comprises a housing 11, 12 having an air inlet 19 in the lower part and a cold air outlet 11b at the upper part and containing a number of upright plane smooth-walled evaporator plates 30 spaced apart each plate containing an evaporator coil the coils being connected in series by pipes 36 and supplied with refrigerant from a compressor-condenser unit. A fan 51 in the upper part of the housing draws air upwardly between the plates and forces it into the storage space through the outlet 11b. A protecting structure positioned forwardly of the front wall 11 of the housing comprises cross bars 15 and vertical strips 17 with a grid 18 protecting the cold air outlet. The air inlet at the bottom is also covered by a grid. The refrigerating plates comprise side walls 31, 32 sealed at their edges with the evaporator coil between them, the space between the walls being partially filled with a eutectic and evacuated of air. The inlet and outlet pipes 37, 38 for refrigerant pass through a heat exchanger 40 in the upper part of the housing. The unit is fixed to the end wall of the truck &c. by strips 100.
Patent GB-1496797-A (GB)
Title: Junction arrangement for bars of a rigid frame
IPC: E04B1/32
Filed: 1975-02-19
Abstract: 1496797 Structural joints CONPROJECT HANDELSVERTRETUNG UND TECHN BURO FUR MASCHINENBAU FRANTL & CO OHG and W ZEMLER 19 Feb 1975 [20 Feb 1974] 7009/75 Heading F2M The junction of three or more bars 8 in a rigid framework is located in a hollow closed metal joint member 1 filled with hardened grout under pressure the bars being inserted into the grout before it has set. The bars may be of circular or non-circular section (see Figs. 5 to 10, not shown) and may be located in circular apertures 2 in the joint member by centring pieces which may be in two parts (Figs. 6, 7, not shown). Reinforcement 5, 6 may be provided in the joint member to which it is secured and which may be provided with grout keying members 3, 4. The aperture 7 in the joint member may be used as a filling hole. If ordinary concrete grout is used it is injected into the joint member under pressure. Plasticsbased grout may be such as to expand on hardening or to require heating whereupon the joint member 1 contracts on cooling. Reference is made to the use of epoxy-resin based grout and grouts formed by glass fibre-reinforced plastics material, asbestos-reinforced concrete mortar and concrete mortar containing metal, e.g. granular steel.
Patent GB-582533-A (GB)
Title: Improvements in or relating to scaffolding appliances
IPC: E04G7/16
Filed: 1944-04-17
Abstract: 582,533. Scaffold clamps. CAMERON, W. A. April 17, 1944, No. 7023. [Class 20 (ii)] A scaffolding clamp for clamping two tubular scaffold poles together in any angular relationship, comprises a rotatable joint and two clamping members. The joint, Fig. 3, has a cylindrical piece 1 formed at one end with a semi-cylindrical recess 3 and outwardly directed pins 4, and at the other end with a flange 2. One face of a second piece 7, of rectangular section butts against the flanged face of the piece 1 and is pivotally connected to the piece 1 by the pin 6. The opposite face is formed with a semi-cylindrical recess 8 similar to 3. An elongated plate 9 having arms 10 with depending pins 12 has a circular hole cut in it of diameter greater than the piece 1 but less than its flange 2, against which it butts, as shown. Notches also are cut in the plate to enable it to pass the pins 4 when assembling. U-shaped clamping members 13 as described in Specifications 580,888 and 582,208, terminating in hooks 14 engage the pins 4, 12 thereby, and are fitted with tightening bolts 17 which carry swivelling shoes 16. The scaffold tubes 15 fitting between the shoes 16 and the grooves in the members 1 and 7 can thus be clamped by the tightening bolts 17 while at the same time the various parts of the universal joint are also clamped together in any previously determined angular relationship.
Patent GB-1411572-A (GB)
Title: Electrical junction box
IPC: H02G3/18
Filed: 1972-09-29
Abstract: 1411572 Connector boxes SIEMENS AG 29 Sept 1972 [30 Sept 1971 (2)] 7079/75 Divided out of 1411571 Heading H2E A junction box comprises an internally threaded cylindrical casing 4 attachable, e.g. by an externally threaded resilient base 2 to an aperture in a wiring duct 3 and an externally threaded annular member 9 within the casing with a projection 20 extending from its inner surface for engagement in a recess in an electrical wiring device, e.g. a socket 7. Annular members 23, 24 may be secured to a socket 7 to form the recess. The wiring device may be positioned below ground level, (Fig. 3, not shown), and a sloping lid (36, 38, 39) may permanently project above ground level. In Fig. 2 (not shown) a distribution column having a casing with a recess (30) for engagement by the projection 20 extends above ground level.
Patent GB-248930-A (GB)
Title: Improvements in back sights for rifles, or other small arms
IPC: F41G1/26
Filed: 1925-03-16
Abstract: 248,930. Kale, A. T. C., and Parker & Co., Ltd., A. G. March 16, 1925. Sights.-Relates to backsights of the kind having a slide mounted on a body and adapted to be elevated bv a screw carried bv the body. To simplify the construction of the slide 2, it is formed with two side cheeks 3 which do not project into the slot in the body 1, the cheeks carrying a transverse pin 8 passing through the slot in the body and formed with a tapped hole for the elevating screw 6.
Patent GB-178278-A (GB)
Title: Improvements in or connected with the packing or preservation of margarine
IPC: B65D85/74
Filed: 1921-03-05
Abstract: 178,278. Dowdall's Buttapat Dairies, Ltd., and Levey, E. A. March 5, 1921. Drawings to Specification. Packing margarine.-Blocks, rolls, &c., of margarine are wrapped up in metal foil so as to form airtight packages, each block being wrapped in a single sheet, and the method of wrapping being that usual when paper is employed. The metal foil may be sterilized by stoving before use.
Patent GB-1163085-A (GB)
Title: Improvements in or relating to Self-Latching Electrical Coupling Connectors.
Inventor: COPPING ERIC JAMES BERTRAM
IPC: H01R13/627
Filed: 1966-02-18
Abstract: 1,163,085. Two-part couplings. PLESSEY CO. Ltd. 26 Jan., 1967 [18 Feb., 1966], No. 7223/66. Heading H2E. In an electrical connector having resilient locking stems 3, 4 on one connector part which snap-fit in lugs 19, 20 on the mating connector part to hold the parts together, the stems and lugs are arranged to polarize the connector. This may be done by making the pairs of complementary stems and channels in the lugs of different widths and providing pairs of complementary projections and grooves, 11 and 21, 12 and 22, also of different widths. Alternatively, the stems and lug channels and also the projections and grooves are of the same width and the projections 11, 12 are differently displaced from the centres of the stems. In a further modification, stems 3, 4 are provided with grooves which co-operate with complementary projections on lugs 19, 20.
Patent GB-1104768-A (GB)
Title: Improvements in burners for thermo-electric generators
IPC: H01L35/00
Filed: 1967-02-15
Abstract: 1,104,768. Gas burners. APPLICATION DES GAZ. 15 Feb., 1967 [22 Feb., 1966], No. 7231/67. Heading F4T. A gas burner for use in a thermo-electric generator comprises a main gas jet 1, supplied through inlet 3, which passes through a plate 5 leaving an annular gap 6 supplied with gas from inlet 4 during starting, and a Venturi flame guide 7, 8 having mounted on it a substantially annular member 11 of large thermal capacity which directs the combustion gases downward past the outside of Venturi 7, 8 to chimney stack 24 of U-shaped profile, said stack comprising chimneys 22 for the discharge of the combustion gases alternating with preheating conduits 23 for the incoming combustion air. The combustion gas outlets 25 are disposed horizontally and the air inlets 26 disposed vertically. The combustion gases are directed from the centre of annular member 11 by masking members 12 into an annular space 19 defined by a cylindrical deflector 16 and end plates 18. From space 19 the gases are directed past the outside of the Venturi by conduit 21. The plates 18 are in contact with the thermo-electric elements A. An ignition burner comprises an injector 28 capped by a tube 33 which projects into a tube 37 leaving an air intake opening 29.
Patent GB-1424622-A (GB)
Title: Apparatus for converting electrical energy into linear mechanical motion
IPC: H02K33/18
Filed: 1973-02-14
Abstract: 1424622 Linear movement dynamo-electric machines XEROX CORP 14 Feb 1973 [14 Feb 1972] 7246/73 Heading H2A In a system for radially positioning a pair of read/write transducer heads 14, 15 relative to two magnetic disc records 12, 13, a coil 31 is mounted by four arms 32a-d on a tube 22 such that the sides of the coil lie in the air gaps between four permanent magnets 38a-d and four flux path members 34a-d; energisation of the coil thereby causes the coil 31, the tube 22 and a carriage 17 supporting the heads 14, 15 to slide along a fixed guide shaft 26 on a pair of movable bearings 23, 24. The return flux path from members 34 to magnets 38 is provided by two end plates 28, 36 and a box structure 37a-d, little flux leakage occurring at the ends of the system.
Patent GB-1000408-A (GB)
Title: Improved process for the production ofª‰-carotene
IPC: C12P23/00
Filed: 1963-02-22
Abstract: In a process for the production of b -carotene a culture of + and - forms of Blakeslea trispora is fermented in the presence of a 2,2,6-trimethylcyclohexane derivative in which the 1-carbon atom is doubly bonded to oxygen or nitrogen. 0.1 to 10 gms. per litre of the cyclohexane derivative may be added after the fermentation has proceeded for 1 to 3 days, and the fermentation continued for a further 6 to 10 days. In examples 2,2,6 - trimethylcyclohexanone and the semicarbazone of 2,2,6-trimethylcyclohexanone are used; other derivatives mentioned are the oxime, hydrazone, thiosemicarbazone and imines of 2,2,6-trimethylcyclohexanone. The culture medium includes corn seed hydrolysate, soya bean oil, cotton seed oil, distiller's solubles, corn starch, yeast extract, potassium monophosphate, carboxymethylcellulose, thiamine hydrochloride, N,N1-diphenylparaphenylenediamine, dimethylformamide, manganese sulphate monohydrate and 2,2,4-trimethyl-6-ethoxy-1, 2-dihydroquinoline.  Specification 1,000,409 is referred to.
Patent GB-1373823-A (GB)
Title: Articulated coupling
IPC: F16C11/00
Filed: 1972-01-13
Abstract: 1373823 Pivoted joints BRITISH LEYLAND (AUSTIN-MORRIS) Ltd 13 Jan 1972 [19 March 1971] 7443/71 Heading E2F A pivoted joint or articulated coupling wherein two wrist-pins 6, 9 are disposed at right angles to each other and are each supported by both end zones of the wristpins in apertures provided in two inter-engaging link members 1, 2 of a mechanical linkage, articulation being effected by mutual rolling action of the wrist pins. Each of the wrist pins has, mid-way between its end zones, a circumferential groove 9 of concave shape. The load applied to either one of the link members 1 and 2 is transmitted to the other solely by the interaction of the wrist-pins. Working clearance is allowed for by an enlarged hole 5 in the link member 2.
Patent GB-794144-A (GB)
Title: Improvements in or relating to electrical information storage systems
IPC: H04Q3/42
Filed: 1956-03-09
Abstract: 794,144. Electric digital-data-storage apparatus. WESTERN ELECTRIC CO., Inc. March 9, 1956 [March 11, 1955], No. 7456/56. Class 106 (1). In an electrical information storage system, successive storage positions for storing separate items are uniquely identified by automatically generating a series of single-binary-digit signals and storing one of such signals in each storage position, the binary digits being so consecutively arranged as to provide successive different numerical sequences thereof, each sequence being individual to, and so serving to identify, a different one of the successive storage positions. The storage system may comprise a magnetic drum 100, Fig. 1, having a track 123 on which are recorded a series of binary digits providing successive different 8-digit sequences whereby 256 storage positions or " slots " around the drum are uniquely identified. The drum and related circuits may be as described in Specifications 684,079 and 693,157, -[both in Group XXXIX]. For each " 1 " on the track, a pulse is picked up by device 102 and passed via amplifier 103, controlled by synchronizing pulses from source 105, phase inverter 104 and delay 106 to the input of an 8-stage shift register (only 5 stages shown). Each stage comprises a double triode bi-stable circuit and is coupled to the following stage through a delay network 107, 108 ... 202. The pulses from 105 are supplied to all the stages through diodes 109, 110 ... 205 for reset and shift. The 8-digit numerical sequences are thus set up successively on the register whose outputs control a diode matrix as shown, whereby 256 input leads 124 ... 130, to which positive operative potentials may be selectively applied, e.g. through relay contacts, are connected in turn to output lead 260. This matrix and associated control circuits may be used to replace the electrostatic scanner described in Specification 693,157. Reference is made to other types of shift register employing, e.g., transistors, gas tubes or ferrite cores, and to other information stores, e.g. delay lines, and magnetic or other tape. An arrangement for generating automatically a suitable series of binary digits and recording them on a drum track comprises in addition to the reading shift register shown a write shift register, a combined recording and pick-up device and control circuits including diode coincidence gates (Figs. 3 and 4, not shown). In a further storage system (Figs. 5 and 6, not shown), the slots are arranged in 8 successive groups of varying number up to 16. The slots in a group are identified by 4- digit sequences on track 123 and the groups by 3-digit sequences from a further track (510), these sequences being set up on separate shift registers. The 4-stage slot shift register separately controls 8-diode " scanners " which are similar to the matrix of Figs. 1 and 2 and have their outputs connected to coincidence gates, one of which is selected through a code translator by the 3-stage group shift register.
Patent GB-258793-A (GB)
Title: Improvements in or relating to fore-carriages for motor cycles
IPC: B62K7/00
Filed: 1926-03-18
Abstract: 258,793. Birmingham Small Arms Co., Ltd., and Hulse, F. W. March 18, 1926. Steering-mechanism. - In a fore-carriage adapted to support a box carrier and to be readily attached to an ordinary motor cycle after removal of the front wheel and forks therefrom, the two wheels 7 of the fore-carriage, are mounted on pivoted stub axles provided with bell-crank levers 15 linked together and connected by a rod 17 to an arm 18 on the lower end of a steering- column ]9, which is carried by a swivelling arm 20 adjustably mounted on a transverse member of the fore-car frame, and is provided at its upper end with a stirrup 21 for connecting it to the usual lug 22 on the lower end of the steering- column of the cycle by means of the bolt usually employed to secure the removable front forks of the cycle to the lug 22.
Patent GB-283370-A (GB)
Title: An improved method and apparatus for obtaining fibrous material from stalks
IPC: D01B9/00
Filed: 1927-03-17
Abstract: 283,370. Gminder, E. March 17, 1927. Breaking and scutching apparatus. - Dry stalks carrying the heads, seeds and leaves are cut into portions of desired length, and those portions which are suitable for immediate further treatment are carried directly to breaking-rollers and a cleaning apparatus, while those portions which carry the seeds &c. are passed to a thrashing-machine and from there carried to join the first-mentioned portions for treatment with them. The stalks are laid across a conveyer 9, Fig. 1, comprising a series of parallel spaced tapes and are cut by a series of saws 7 projecting through a plate 8 and situated between the tapes. The material is held by a second similar conveyer 10. The conveyers approach one another at the delivery end and are both passed over the drum 2 to deliver the material on to aprons 13, 14, Fig. 2. The number of cut portions of the stalks that fall on each apron is determined by an adjustable gate 19. The apron 13 leads to rollers 15, 16 and a scutcher or cleaner 17 preferably of the Crighton type. The apron 14 leads in the opposite direction to a thrashing-device 30, comprising a drum 21, spiked casing 22, and grid 23. The material is delivered on to a belt 24 and is carried on to the belt 13.