baber/WOPTO huggingface dataset:
Patent GB-1011069-A (GB)
Title: Improvements in or relating to electrothermic printing or recording apparatus
IPC: B41J25/316
Filed: 1962-07-06
Abstract: 1,011,069. Selective printing. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 6, 1962 [July 11, 1961; Nov. 6, 1961 (2); Nov. 8, 1961], No. 26036/62. Heading B6F. [Also in Divisions G1 and H5] In an electrothermic printing or recording apparatus having at least one group of aligned marking heads in point contact with a moving thermosensitive record strip 1 and the heads are electrically energizable individually e.g. by communication or computer signals so as to heat and mark the strip at the area of contact, each marking head comprises a conductor 8 of strip form in electrical and thermal conducting contact with and forming a bridge between two spaced coplanar plates 6, 7 which are of good thermal and electrical conducting material and through which current pulses to the conductor 8 pass. As shown, seven writing heads 20 . . . 26 are assembled in a synthetic resin envelope 10 and separated by insulating layers 9, 11. The conductors 8 may be made of constantan or nichrome and the plates 6, 7 made of copper. A roller 15 supports the strip 1 as it passes under the heads. Each conductor 8 is energized when a switch 14 in its circuit is closed, the switches 14 being electronic switches e.g. transistors, switching tubes or photo resistors controlled by electrical or optical pulses, operation being effected through a magnetic core matrix. By brief energization of the heads in suitable combinations, numbers, e.g. 2, Fig. 1, or letters, may be recorded. In a modified construction of head, the layer 11 is extended to the bottom of the head and the conductor 8 is formed by deposition from a vapour phase in a vacuum. Such conductors may be thinner than those shown in Fig. 1, and to protect them a second layer of a material of high electrical resistance and high thermal conductivity, e.g. an intrinsic semi-conductor such as germanium or silicon may be deposited thereon. A row of groups of heads may be provided so as to print a line of characters across the strip 1, or to record variable quantities in the form of graphs. The movement of the strip 1 may be intermittent or continuous and may constitute a time axes, or such movement may be controlled by a quantity which varies with time. Specification 848,217 is referred to.
Patent GB-267421-A (GB)
Title: Improvements relating to cylinder locks
IPC: E05B27/04
Filed: 1926-10-19
Abstract: 267,421. Croning, J. C. A. Oct. 19, 1926. Locks , revolving- barrel; portable locks. -A rotatable or rotatable and removable barrel has one-piece locking pins, the ends of which form part of the surface of the surface of the barrel: the pins have each a a lateral projection for engagement with the key. The one-piece looking pins c have projections e which serve as abutments both for the kevs and springs h. When the appropriate key is inserted, the pins c are flush with the surface of the cylinder a, which can then be turned. Additional pairs of notches may be provided, Fig. 6, to enable the key to be withdrawn without turning the cylinder through 360‹. The cylinder is retained in the casing a by a split spring washer k engaging a groove in its end and engaging an internal shoulder in the casing. Instead of separate series of holes d, Fig. 1, in the casing for the reception of the locking pins, longitudinal grooves n, Fig. 5, may be provided. The cylinder may form a removable plug with a projection at the inner end for locking the steering pillarof a motor vehicle, in which case the split washer k is dispensed with.
Patent GB-916350-A (GB)
Title: Bi-stable trigger network
IPC: H03L1/02
Filed: 1960-07-27
Abstract: 916,350. Transistor bi-stable circuits. GENERAL PRECISION Inc. July 27, 1960 [Aug. 3, 1959], No. 26095/60. Class 40 (6). A bi-stable trigger network comprises a pair of intercoupled electronic discharge devices and inductances, each of which is arranged to initiate the energization of its respective non- conducting discharge device on receipt of a trigger pulse, a feedback path from the conducting discharge devices to the other to cause a current to flow in its respective inductance to energize it, and a by-pass circuit for each inductance whereby upon receipt of the next trigger pulse the current in the energized inductance is reduced to zero and a current is built up in the other inductance to switch the circuit. As described, transistors 10, 12 form a bi-stable pair and have their collectors connected via transistors 70, 80 and 100, 106 respectively to terminals 81 and 107. The triggering circuit for the pair comprises two transformers 34, 52, each having a secondary winding connected to the base of one of the transistors 10, 12 respectively. The primary windings are connected via diodes 46, 60 respectively to a 60v. supply, via diodes 48, 62 respectively to a source of trigger pulses and also the primary of transformer 34 is connected via diode 50 to the output A from terminal 107, and that of transformer 52 is connected via diode 64 to the output #A from terminal 81. In the state when transistor 10 is non-conducting and transistor 12 conducting, transistors 80 and 106 will be respectively conducting and non-conducting, making the signals #A and A respectively low and high potentials. In this condition, diode 50 is reverse biased so that current flows from the 60v. source through the primary of transformer 34, and diode 64 is forward biased effectively, shorting the primary of transformer 52. Application of negative trigger pulses T to diodes 48 and 62 forward biases both these diodes, shorting the primaries of both transformer and hence the current in the primary of transformer 34 collapses producing a pulse in its secondary which switches the transistors 10, 12 to the other stable state. In this state, current builds up in transformer 52 ready for the next trigger pulse to switch the circuit back. The build-up time of current in the transformer primaries prevents the circuit being switched in excess of a predetermined rate. Diodes 24, 32 are provided to prevent the transistors 10, 12 from saturating, and to compensate for differences in the transistor characteristics. Diodes 76, 110 serve a similar purpose to diodes 24, 32, the biasing potentials for them being set by Zener diodes 78, 104.
Patent GB-1235851-A (GB)
Title: Lattice framework structures
Inventor: MOLYNEUX WALTER GUILLAM
IPC: E04C2/32
Filed: 1967-06-06
Abstract: 1,235,851. Laminates. AVIATION & SUPPLY, MINISTER OF. 30 July, 1968 [6 June, 1967], No. 26156/67. Heading B5N. [Also in Divisions B3, B7, El] A structure comprises a member which has a lattice pattern of grooves which contain a lattice framework of structural members which comprise a non-metallic fibre reinforcement embedded in a matrix material to form a composite member. The fibre reinforcement may be of glass or carbon fibres and the matrix material may be of metal or resins, especially resins derived from (a) a synthetic fluoroelastomer, a metal oxide and a curing agent, (b) a cold setting catalysed polyester resin, (c) a mixture of epoxy resin and hardener and (d) a Friedel- Crafts type resin. The grooved member may be of wood, plastics, metal or of composite material having a fibrous reinforcement in a matrix. The structure may have a load bearing facing layer secured to it which may be of metal or a fibre reinforced resin layer. The structure may be used as a stiffener to a face layer or panel to which it is attached, e.g. the stressed skin of an aircraft structure. Fig. 1 shows a lattice grooved metal sheet 61 having grooves 65, a lattice framework of members 62 comprising carbon fibre reinforcement in a matrix of cured polyester resin in the base of the grooves 65, and a face panel 63 secured by adhesive to the sheet 61.
Patent GB-1427716-A (GB)
Title: Apparatus for playing a board game
IPC: A63F3/00
Filed: 1972-06-05
Abstract: 1427716 Board games TAVISTOCK INSTITUTE OF HUMAN RELATIONS 5 June 1973 [5 June 1972] 26193/72 Heading A6H Apparatus for playing a game based on personnel management principles includes a board bearing representations of jobs and their characteristics in an arrangement representing an organisation, and playing pieces representing individuals for positioning on the board such that any individual holds only one of said jobs at any one time. The playing pieces comprise a first set of cards bearing the particular individual's job history, skill level, ability rating, qualifications, age &c., and a second set of cards representing individuals to be recruited into the organisation. Movement of the playing pieces is in accordance with the judgement of the player or players having regard to the characteristics of both job and individuals, the movement resulting from individuals leaving the organisation, e.g. voluntarily, by dismissal, retirement or death, from individuals transferring within the organisation, e.g. on promotion, demotion, or lateral transfer, and from the engagement of recruits. A game director may control the leaving movements and may supply candidates in answer to advertisements. The apparatus may also include advertisement forms, short listing forms and a short history of the organisation, and means, e.g. a set of tables, is provided to calculate changing characteristics of jobs and job holders, and to determine which individuals should leave and which should be offered vacant jobs.
Patent GB-344802-A (GB)
Title: Improvements in and relating to the separation of dry materials
IPC: B03B4/04
Filed: 1929-08-28
Abstract: 344,802. Separating solid materials. HOLMES, C. W. H., Deneside, Alverstone Avenue, Low Fell, and BIRTLEY CO., Ltd., Birtley, both in Durham. Aug. 28, 1929, No. 26219. [Class 117.] Relates to apparatus for separating mineral and agricultural products, such as a mixture of coal and shale, of the type in which the materials are subjected on a perforated support to the action of continuous or pulsating air pressure whereby the denser products are stratified below the lighter, and consists, in one form, Fig. 2, in the provision of a stationary inclined support 3 over which the materials are fed from a hopper 4, and a conveyer 9 moving over the support in an upward direction to discharge the denser material against the action of gravity. In a modification the conveyer may be formed of perforated plates which function as the support. Sides 7 form a trough, the lighter material, such as coal, being discharged by gravity at the lower end over a weir 14 adjustable in height by screws 13, the discharge of the denser material, such as rock, being controlled at the upper end by an adjustable gate 11. The apparatus may be applied to the process described in Specification 322,480, [Class 117, Sifting &c.]. Specification 299,936, [Class 117, Sifting &c.], also is referred to.
Patent GB-288489-A (GB)
Title: Improvements in or relating to bridle curbs
IPC: B68B1/04
Filed: 1927-10-05
Abstract: 288,489. Wiesenfeld, J. Oct. 5, 1927. Bridles. - A curb which may be applied to an ordinary bridle for teaching a horse not to pull comprises a nose-band 1 provided with buttons a and attached to a head-strap 9. The ordinarv curbchain is removed, and the nose-band is con. nected by a pair of curb-chains 2 to the rings 7 of the bit.
Patent GB-858871-A (GB)
Title: Improvements in or relating to safety lamps
Inventor: BISHOP WILLIAM NORMAN
IPC: F23Q7/08
Filed: 1958-08-16
Abstract: 858,871. Miners' safety lamps. WOLF SAFETY LAMP CO. (W. MAURICE) Ltd. Aug. 17, 1959 [Aug. 16, 1958], No. 26411/58. Class 75(3). The filament of a battery operated flame lighter in a safety lamp for mines is composed of an alloy which provides catalytic assistance to the attainment by the filament of ignition temperature when brought into contact with vapour from the wick. The filament which has a higher resistance than pure platinum may consist of an alloy of platinum containing 4% or more of ruthenium, preferably 10% Alternatively a platinum/copper alloy may be used containing about 5% of copper. The filament may be mounted obliquely so as to traverse zones of differing content of fuel vapour. Specifications 858,872 and 858,873 are referred to.
Patent GB-435156-A (GB)
Title: Improvements in or relating to combined listing and sorting machines
IPC: B07C3/04
Filed: 1934-03-24
Abstract: 435,156. Sorting or filing papers. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(International Business Machines Corporation; 270, Broadway, New York, U.S.A.) March 24, 1934, No. 26426. Divided out of 435,139. Drawings to Specification. [Class 146 (i)] A statistical machine comprises a recordsorting machine for sorting records, e.g. cheques, representing items, into groups of the same classification and having a plurality of sorting compartments and means for selecting a compartment, and a printing- mechanism operable as an incident to each record-sorting operation for listing the item represented by the record upon a record strip related to the selected compartment. The machine described includes the following features which are identical with those described in Specification 435,139; the driving and compartment-selecting mechanism for the sorting-drum, feed and endorsing mechanism for cheques, item-wheel setting-up mechanism, adjustment by the item wheel of racks which adjust wheels for printing on the individual and main control strip, impression mechanism, and error-key mechanism.
Patent GB-1107274-A (GB)
Title: Independently controlled inverter
IPC: H02M1/06
Filed: 1965-06-23
Abstract: 1,107,274. Inverting. LICENTIA PATENTVERWALTUNGS G.m.b.H. 23 June, 1965 [23 June, 1964], No. 26576/65. Heading H2F. An inverter comprises at least one bridge, opposite arms of which are respectively formed by single diodes 5, 6 and bridges of thyristors 1-4, one of the diagonals being bridged by a centre-tapped load-connecting inductor L. Fig. 1 shows a three-phase arrangement of three such bridges feeding output terminals R, S, T. Each thyristor bridge may be turned on by triggering thyristors such as 1, 2 and turned off by triggering thyristor 3 so that capacitor C turns off thyristor 1. When this phase is to be turned on again, thyristor 4 is triggered so that the load current flows through thyristors 3 and 4. Thyristors 3 and 4 are turned off by triggering thyristors 1 or 2. Inductors L<SP>1</SP>, L<SP>11</SP> limit the rate of change of current in the thyristors. Inductor L limits capacitive currents in the energy recovery diodes 5, 6. In Fig. 2 (not shown), inductors L<SP>1</SP> are replaced by additional tappings on inductor L. In Fig. 3 (not shown), inductor L is replaced by two centre-tapped inductors having diodes 5, 6 connected to their centre tappings. The inverter may be operated at frequencies as high as 5,000 Hz and may be used for controlling the speed of A..C motors.
Patent GB-243509-A (GB)
Title: Improvements in drying cylinders
IPC: D21F5/10
Filed: 1924-11-07
Abstract: 243,509. Bullen, S. C. Nov. 7. 1924. Cylinders, hollow.-The condensate is removed from a steam-heated drying cylinder by one or more spiral passages A having one or more convolutions and formed with, or secured to, the end of the cylinder. Spiral passages may be provided at each end of the cylinder and arranged so that the cylinder mav be rotated in opposite directions.
Patent GB-457411-A (GB)
Title: Improvements in roller bearings
IPC: F16C43/06
Filed: 1935-09-27
Abstract: 457,411. Roller bearings. ENGLISH NEEDLE & FISHING TACKLE CO., Ltd., and KING, G. B., Central Works, Studley, Warwickshire. Sept. 27, 1935, No. 26785. [Class 12 (i)] A roller bearing unit comprises a race ring 11, needle rollers 10, and a sleeve 13 the ends 14 of which are bent to hold the rollers in position. The ends of the rollers may be of cylindrical, conical, parabolic, ellipsoidal, spherical or other rounded form. The race ring 11 may be formed from a strip bent into cylindrical form with the edges meeting in a butt joint of chevron form. Instead of the edges 15 of the sleeve ends 14 being turned inwardly to retain the rollers, annular plates 20, Fig. 11, may be inserted between the ends of the race ring and the sleeve ends 14. In Fig. 11 the bearing has packing rings 26 retained in place by end caps 25 which are split at 27 so that they snap over spring rings 30. Alternatively each cap may have an annular rib to snap into a groove 29. In another modification the race ring 11, Fig. 8, and the sleeve 13 are arranged inwardly of the rollers and the latter are retained by rings 20 fitted with packing rings 24. In all cases the sleeve 13 is preferably of aluminium or other soft metal, and is so dimensioned that it has to be forced into its operative position. Specification 457,412 is referred to.
Patent GB-1201733-A (GB)
Title: Electrical connector block
IPC: H01R12/18
Filed: 1968-06-06
Abstract: 1,201,733. Two-part couplings. BERG ELECTRONICS Inc. 6 June, 1968 [21 Aug., 1967], No. 26952/68. Heading H2E. In an electrical connector, connection is made between rows of contact springs 24, Fig. 10, in cavities 20 in an insulating housing, and contact pins 38 inserted into openings 18 in the housing, contact pressures being increased, for one contact spring at a time, by the insertion of a cam pin 40, Fig. 16, into a cam opening 22 which extends through the housing below each row of springs. The housing is formed in two halves held together by bevel clips (16, Fig. 4, not shown). The cam pin is preferably of a plastics material having a low friction coefficient. If, however, it is desired to electrically connect the springs, the cam pin is of metal; alternatively, contacts may be positioned at intervals along the pin to connect predetermined contacts. If the frictional drag is too great two complementary pins may be used (Figs. 17, 18, not shown), these being inserted from opposite ends of the housing. The springs may be of phosphor-bronze and may be gold-plated at the contact portions; slight modifications in shape are described, the spring being, for example, non-symmetrical to facilitate selective removal of the left-hand (Fig. 11, not shown) bifurcated (Fig. 12, not shown) or formed with raised contact ridges (Fig. 15, not shown). An additional male contact may also be provided integral with the spring. Contact lugs (Figs. 19, 20, 21, not shown) which may replace the pins 38, have ridges 132 for making contact to either the springs or another lug. Figs. 1, 2, 3, 5 (not shown) illustrate particular uses of the invention e.g. in computer circuits. Another use is in establishing connection between a contact member and contact elements of an integrated circuit module or a printed circuit tape.
Patent GB-189599-A (GB)
Title: Improvements in tools for fitting pneumatic tyres
IPC: B60C25/02
Filed: 1921-10-12
Abstract: 189,599. King, F. T. Oct. 12, 1921. No Patent granted (Sealing fee not paid). Tyres, elastic, and tyre covers, tools for removing and replacing.-A tool for lifting up the edge of a tyre for manipulation of the tube or security bolts, consists of an approximately semi-circular bow A with a hook B at each end and perpendicular to the plane of the bow. The tool is used in combination with a plain bar or lever D passed through it and taking a fulcrum on the tyre or further side of the rim.
Patent GB-203553-A (GB)
Title: Improvements in reversible regenerative furnaces
IPC: F27B3/00
Filed: 1922-10-06
Abstract: 203,553. Wellman Smith Owen Engineering Corporation, Ltd., and Kemp, A. V. Oct. 6, 1922. Gaseous-fuel furnaces.-In a reversible regenerative open-hearth furnace, two removable ported structures are arranged at each end of the furnace, as shown at A, B, A<2>, B<2>, Figs. 1 and 2, the structures A, A<2> being used alternately to supply air and gas from the regenerators to opposite ends of the furnace, while the structures B, B<2> are used alternately for leading the combustion products from the furnace to the regenerator. With the ported structures arranged as shown, air and gas is supplied to the furnace through the structure A while combustion products escape through the structure B<2>. Each pair of structures is mounted on a carriage adapted to run on rails d on a frame D pivoted at one end. A hydraulic plunger is provided for lifting the frame D and the carriage with the ported structures so that the latter are clear of the seals g<2> before they are moved to bring one or the other opposite to the furnace opening. The ported structures may be mounted on overhead runways or may be arranged on rotary carriages. Specification 120,559 is referred to.
Patent GB-607880-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/14
Filed: 1945-10-17
Abstract: 607,880. Slicing machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd., and THOMAS, H. (U.S. Slicing Machine Co., (in part)). Oct. 17, 1945, No. 27148. [Class 28(ii)] The space between the lower edge of the disc knife 20 and the framework 32 of a slicing machine is bridged by an extension 34, Fig. 4, of the knife mask plate 30 so as to obstruct entry of the operator's fingers into this space down which scraps usually fall into the usual scrap space A, this extension acting as a further guard for the knife. The extension 34 which may be curved is provided with holes to allow the scraps to fall through to A. The extension 34 may be alternatived by a fitting on part of the machine base. A withdrawable scrap pan may be provided in the space A which is masked at both ends by other extensions, one extension 37, Figs. 1 and 2 being a part of the pivoted slice deflector 29, the other extension 35, Fig. 5 being an extension of the flange 36 of the knife mask 30. The mask 30 is provided with slots and catches 41 and 42 to hold it in position but allowing easy removal. The flange 36 prevents scraps falling on the machine base 21, Fig. 2, or on the low platform 33 which is combined with the slice receiver 28; the slice receiver is integral with the base 21. In a modification, Fig. 7, the masking plate 30 with its knife guarding flange 36 is removably locked by a knob D. Cut aways B and C are provided, the cut away B exposing the knife edge at the cutting position and C for grinding, either of which is brought into position by releasing the knobs 58, 59 and turning the plate around as required. To wipe the knife, the mask 30 is rocked forward under the guidance of a hinge 52 away from the knife. The mask 30 can then be lifted out of the retaining lugs 56, 57 of the support plate 50. The support plate itself can be removed by pulling out its hinge pin which is bent at its end 52A for this purpose. The plate 50 is shaped at its bottom, to contain a withdrawable scrap receiving pan (60, Fig. 8, not shown), the scraps falling through a hole cut in the plate 20. The plate 50 serves as a guide plate above the pan. It has a flange 51 to guard the corresponding part of the edge of the knife. In Fig. 9, a vertical dished knife is used having a mask plate 75 locked to a stationary knife guard 80, but releasable by unlocking. It may then be rocked about a hinge 83 and removed by lifting its pins out of the slots 86, 87. A scrap pan 60 with closed end and pull finger grip is provided. In another modification, Fig. 11, a handle 88 manipulates the mask 75. A type of rising butt hinge 92 with a spring urges the mask horizontally clear of the knife. The plate can then be pivoted bodily about 92 away from the knife into the dotted position 75 by means of the handle 88. This mask 75 has a similar attached guard plate 98 with holes to allow scraps to fall through. Specification 594,404 is referred to.