baber/WOPTO huggingface dataset:
Patent GB-580762-A (GB)
Title: Improvements in or relating to electron discharge devices having means for generating an electron beam of elongated cross-section
IPC: H01J29/56
Filed: 1944-02-16
Abstract: 580,762. Discharge apparatus. KLEMPERER, O. E. H. (known as KLEMPERER, 0.). Feb. 16, 1944, No. 2927. [Class 39 (i)] A discharge device for generating an electron beam of elongated crosssection and comprising a cathode C having an elongated electron-emitting surface and a further electrode G having an elongated aperture through which the beam is projected, has the ends of the cathode covered by shields to prevent electrons emitted at the cathode ends passing on in the beam. The electrostatic field at the ends of the cathode is distorted and electrons passing through this region would not be accurately focused in the beam. They are therefore stopped by the shields which may comprise thin metal plates S in contact with or very near to the surface of the cathode.
Patent GB-278231-A (GB)
Title: Improvements in the manufacture of textile material and sacks therefrom
IPC: B65D65/40
Filed: 1927-02-02
Abstract: 278,231. O'Hanlon, K., and Hill, R. Feb. 2, 1927. Materials, special, for bags and linings.-Sacks, which may have been previously used, are slit along the sides and sewn end to end to form a long strip or web, which is then attached to a backing strip of the same material or of paper, scrim, loosely-woven hessian, &c. by means of pitch or other adhesive applied to either strip. The united strips may be passed through squeezer rolls or be calandered, and may be coated with dye on one or both sides, or passed through a dye bath. The material so formed may be cut into blanks and again formed into sacks. Specification 267,370 is referred to.
Patent GB-1037493-A (GB)
Title: Brominated oils and process for the manufacture thereof
IPC: C07D303/42
Filed: 1965-01-22
Abstract: Brominated oils are stabilized by introducing epoxy-groups into them, either by means of an epoxidizing agent such as an organic per-acid which epoxidizes residual double bonds, e.g. a brominated oil in which 87-97% of the initially present double bonds are saturated with bromine may be reacted with per-acetic acid to epoxidize the remaining double bonds, or by means of an epoxidized oil, e.g. a brominated oil in which all the original unsaturation is saturated with bromine may be mixed with 0-5-10 wt. per cent of an epoxidized oil, e.g. epoxidized sesame oil.  Brominated oils specified are brominated sesame, safflower, cottonseed, olive, corn, and soyabean oils.
Patent GB-930359-A (GB)
Title: Table ventilator
IPC: F04D25/10
Filed: 1962-01-26
Abstract: 930,359. Table fans. INDUSTRIES ONDERNEMING W. H. BRASKAMP N.V. Jan. 26, 1962 [Feb. 10, 1961], No. 3030/62. Class 110 (1). A table fan 3, Fig. 2, is oscillated about a vertical axis by means of an arm 8 pivotally connected at one end to a stationary part of the fan and connected at the other end to a disc 5, Figs. 2 and 3, which is rotated by the fan motor. The arm 8 is connected to the disc 5 by means of a crank-pin 7 which passes through one of several slots 12, Figs. 2 and 5, in a disc 11 secured to the disc 5. A spring- pressed ball 15 carried by the crank-pin 7 engages one of a number of recesses 6 which are arranged in register with the slots 12. The amplitude of oscillation can be altered by moving the crank-pin 7 along the slot 12 through which it projects until the ball 15 engages a different recess 6. The recesses 6 may be replaced by annular grooves concentric with the disc 5.
Patent GB-113018-A (GB)
Title: Improvements relating to Pneumatic Tyres for the Wheels of Motor Cars and other Vehicles.
Inventor: BRIGGS JAMES
IPC: B60C27/00
Filed: 1917-03-02
Abstract: 113,018. Briggs, J. March 2, 1917. Tread bands, projections, and surfaces.-Casehardened steel studs 2 of skeleton rectangular shape are secured to the tyre tread 9 by countersunk bolts 6 and nuts 8. The outwardly projecting side bars 5 are of rectangular section and each may have a reduced part 7. In a modification alternate studs may be arranged with the bars 5 transverse to the tread. A protecting-band B of canvas may be fitted under the nuts 8.
Patent GB-122934-A (GB)
Title: Improvements in Steam Disinfecting Huts or Chambers.
Inventor: GRANT JAMES TAYLOR
IPC: A61L2/06
Filed: 1918-02-21
Abstract: 122,934. Grant, J. T. Feb. 21, 1918. Vehicles adapted for use as disinfecting-apparatus.-A steam disinfecting-chamber forms part of a steam-driven road or rail vehicle, and is supplied with steam from the vehicle boiler. The chamber 1, which is carried or built on the frame of the vehicle, is formed of steel or wood lined with tinned sheet iron, and may be angular or cylindrical in shape. The space between the lining and the outer casing is filled with slagwool, cork, or air. The chamber is fitted at the top and sides with steam-heated radiator pipes 8 and at the base with a pipe 4 provided with steam discharge nozzles 5. The radiator pipes 8 are fit ted with drain-cocks 11, and the floor or wall of the chamber is provided with a valve for the expulsion of air by the steam. Hooks for supporting the articles to be treated are mounted on the radiator pipes or on bars fitted to the top of the chamber. The chamber is fitted with end or side doors, and mav be divided into two or more cornpartments. The chamber may be removable from the vehicle frame, or may have hinged or collapsible sides and ends and a removable roof with a rim engaging over the sides and ends.
Patent GB-590213-A (GB)
Title: Selector system for printing telegraph apparatus
IPC: H04L17/18
Filed: 1945-02-07
Abstract: 590,213. Type - printing telegraphy. SAYLOR, G. S. Feb. 7, 1945, No. 3102. Convention date, Sept. 2, 1944. [Class 40 (iii)] In a printing telegraph receiver comprising a rotary mechanism controlled by a trip-latch or the like and a mechanical selector mechanism controlled by a selector magnet, the triplatch and the armature of the selecting magnet being movable into alternate positions at the beginning of marking and spacing periods respectively, the trip-latch instead of being operated by the selector magnet is operated by an auxiliary magnet which is energized when the selector magnet is de-energised and vice versa. Construction (Fig. 1). The invention is described as applied to apparatus of the kind described in Specification 274,448, [Class 40 (iii)]. The auxiliary magnet 29 is carried on a bracket 30 fixed to the range scale 2 (which is part of the range mechanism used to orientate the selector cams with respect to the received signals) and its armature 28 carries as adjustable screw 27 engaging the plunger 23 which operates the trip-latch 9 through the bell-crank 21. The bracket 30, range-scale 2, plunger 23, and screw 27 are all of magnetic material so that on de-energization of the magnet 29, the plunger is dragged out magnetically. Adjustable screw stops with lock nuts 35, 37, 25a are provided for limiting respectively the forward and backward movements of armature 28 and the upward movement of the trip-latch 9 and the tension of armature-restoring spring 43 is also adjustable by a screw 42 engaging a strip 41 secured to a supporting bracket 38. The selector magnet 44 is mounted below the range scale 2 as shown and controls through its armature extension 47 the stop arm 18 which co-operates with the stop pawl 12. Circuit (Fig. 8). The line relay 51 has an operating winding 3<1>, 6<1>, and a biassing winding 2<1>, 7<1> connected in series with a potentiometer 58. The marking and spacing contacts 53, 54 of the line relay armature 52 are respectively connected to the selector magnet 44 and the auxiliary magnet 29 through further potentiometers 55, 59.
Patent GB-631972-A (GB)
Title: Sawtooth current oscillation generator
IPC: H03K4/34
Filed: 1947-02-01
Abstract: 631,972. Saw-tooth generator circuits. BENNETT, A. J., LAX, L., and PYE, Ltd. Feb. 1, 1947, No. 3116. [Class 40 (vi)] A blocking oscillator for producing a saw-tooth cur rent in an inductive loac comprises a transformer having three windings con nected respectively to the cathode, control grid and a second grid of the valve sc that the valve serves both to generate and amplify th( saw-tooth oscillations. Fig 3 shows a blocking oscillator circuit for producing a saw-tooth. current in deflecting coils D in which coupling is provided between the control and screen grids and cathode by means of transformer T, the frequency of oscillation being adjustable by varying the value. of resistor R3. The feed-back transformer is connected so that the cathode potential follows that of the control grid, thus increasing the potential difference between the cathode and grid g<2> and partly counteracting the effect of resistance in the anode circuit. The oscillator may be synchronized by the application of synchronizing pulses to either grid g<1> or g<2>.
Patent GB-197016-A (GB)
Title: Improvements in or relating to roadways, pavements, stairways or the like and to materials for the construction thereof
IPC: E01C5/18
Filed: 1922-02-03
Abstract: 197,016. Plantation Rubber Manufacturing Co., Ltd., and Dessau, M. M. Feb. 3, 1922. Flooring and paving blocks.-A wearing surface for roads, pavements, stairways &c. of the kind formed of small blocks of rubber embedded in a concrete or like binder, has the rubber elements formed with a contracted central portion or bound or threaded with wire in order to anchor the blocks in the binder. The rubber blocks a may have their top and bottom portions bevelled as shown in Fig. 1, or stepped as shown in Fig. 5, to overhang the binder c which penetrates between the blocks. Fig. 6 shows a block bound with wire f to produce a waist, and Fig. 9 shows a mould k for constructing a composite block of rubber discs a each in two layers embracing metal rods i which key the discs to the binder c. Fig. 10 shows a continuous rubber paving formed of blocks a having wire-bound stems o engaging the binder.
Patent GB-491592-A (GB)
Title: Improvements in sheet feeding means for cylinder printing machines
IPC: B65H5/00
Filed: 1937-02-04
Abstract: 491,592. Printing - machines. ROCKSTROH-WERKE AKT.-GES. Feb. 4, 1937, No. 3313. Convention date, March 26, 1936. [Class 100 (ii)] In a cylinder printing-press, the sheets are fed from a stack 2 arranged at one side of the press and are delivered to stacks 3 arranged at the same or opposite side of the press by means of rocking arms which oscillate through an angle of about 90‹. The feed arm 8 seizes the sheet by the edge which is taken to the lays of the impression cylinder. The sheets are advanced either automatically or by hand, after being deposited on a feed table 4. The delivery arm 10 acts similarly to the feed arm 8, and may be attached to it or formed integral with it. The arm 10 may be a separate arm and be actuated by spur gearing from the shaft of the arm 8, or as shown in Fig. 5, rack gearing may connect the arms 8, 10 when the delivery stack is on the side of the machine opposite to the feed stack.
Patent GB-1293471-A (GB)
Title: Co-ordinate draughting machine
IPC: B43L13/02
Filed: 1970-01-23
Abstract: 1293471 Draughting machines ZVL KINEX 23 Jan 1970 [17 Feb 1969] 3348/70 Heading G1X A draughting machine comprises a draughting board 8, a guide tube 4 movable parallel to itself across the board on slides 6, 7, the tube 4 forming a guide for a slide 5 having rollers (not shown) contacting the tube 4, and carrying a draughting head 10, and a compensating weight 2 for the slide 5, the weight being slidable in the tube 4 and being connected by a cable 3 passing over a roller 1 to  the slide 5. The slide 6 at the upper end of the tube 4 is movable along a guide tube 9 and the slide 7 contacts the lower edge of the board 8 and is provided with a pivotably mounted spring- loaded adjustable lever which contacts the board 8 to provide a desired braking effect for the movement of the tube 4 across the board. The guide 5 is provided with spool shaped rollers which contact the tube 4 at two points and straight sided counter rollers which together serve to guide the movement of the slide, the rollers being mounted on ball bearings.
Patent GB-1453518-A (GB)
Title: Centrally controlled telecommunications exchange systems
IPC: H04Q3/00
Filed: 1974-01-25
Abstract: 1453518 Automatic exchange systems SIEMENS AG 25 Jan 1974 [30 Jan 1973] 03455/74 Heading H4K In a centrally controlled exchange a scanner, which is used for scanning all the circuits of an exchange which have a network appearance, is additionally used at the end of each exchange operating cycle to determine whether any of a particular group of exchange circuits is idle. The exchange is a PBX of the folded network type in which the exchange circuits such as subscriber line circuits T1, T2, local junctors HV, main exchange junctors (AV) and registers WS are connected to one side of the network. All such circuits are scanned/identified by use of a single scanner S which operates in four distinct modes to identify the number of the multiple switch input (section S1) the number of the multiple switch (section S2), the switching group (section S3) and the switching network section (section S4). The additional use of the scanner is to determine periodically whether there are any free local or main exchange junctors in the exchange and to cause lights to be lit at an operator's position which each indicate that at least one of a respective type of junctor is available. To this end at the end of every other exchange operating cycle the programmed controlled processor P causes all free local junctors to emit a request signal to the scanner which is enacted to use its "network section" searching section S4 to determine whether any section has a free local junctor, the presence of a free junctor in any section causing a lamp to be lit at the operator's position. At the end of each following exchange cycle a similar process is carried out to determine if any free main exchange junctors are available. The Specification also describes the general scanner operation for establishing a connection between a calling subscriber circuit T1 and a free register WS such that the shortest path can be used in the switching network. To this end once a calling subscriber circuit T1 has been identified the scanner first looks for a free register connected to the same switch as the caller and only proceeds to a group search, a section search and finally an all register search if no free register is found at a lower level.
Patent GB-578273-A (GB)
Title: Improvements in electron optical systems
IPC: H01J37/145
Filed: 1943-03-03
Abstract: 578,273. Electron lenses. BRITISH THOMSON - HOUSTON CO., Ltd., and GABOR, D. March 3, 1943, No. 3510. [Class 39 (i)] A dispersing electron, lens for correcting spherical aberration consists of an axially symmetrical electronic space charge confined within a limited region by combined electric and magnetic fields. The electron beam to be focused travels along the axis 17, Fig. 4, and passes first through a convergent magnetic lens 2. It then passes into the region within magnetic coil 4 in which electrons supplied by annular auxiliary cathode 6 are confined within the space marked 7 by the combined effect of the magnetic field, the positive electrode 5 and negatively charged end electrodes which as shown are the ends of coil casing 3. It is shown that, provided the cathode 6 is situated on or near the line of field 8, Fig. 5, which cuts the axis 17, there will be set up two rotating streams of electrons travelling in opposite directions and forming a highly concentrated space charge which, near the axis, increases with radial distance from the axis. The potential at the axis falls to zero and in order to prevent hollowing out of the beam, and the accumulation of excess energy electrons, electrons are removed from the region at a controlled rate by slightly positive electrode 16; the charge density ultimately falls to zero at the edges of the region and no electrons are collected by anode 5. The magnetic fields of the rotating streams combine to oppose and weaken the field of coil 4 at the axis. As the lens has a negative spherical aberration, it combines with ordinary lenses having a positive aberration to produce a compound lens of low spherical aberration and short focal length, suitable for electron microscopes. The Provisional Specification states that chromatic aberration may also be corrected.
Patent GB-1501452-A (GB)
Title: Digital signal sampling circuit
IPC: H03K3/013
Filed: 1975-01-28
Abstract: 1501452 Semi-conductor bi-stable INTERNATIONAL COMPUTERS Ltd 23 Jan 1976 [28 Jan 1975] 3566/75 Heading H3T A digital data sampling circuit comprises a bistable 10 with complementary outputs Q, to each of which is connected an output circuit 11, 12 which produce output signals having opposite logic levels when the bi-stable is in a stable state but having a unique logic level condition when the bi-stable is in an unresolved state in which the output signals have the same logic level, means 14 for gating an input data signal into the bi-stable, preset terminal, by an asynchronous strobe signal, means to produce an output strobe signal following each input strobe signal, delay 16, 17, and a logic circuit 13 which detects the condition that the output circuits are at the unique logic level condition and which inhibits production of the output strobe signal as long as the condition persists. The delay 16 is necessary to allow for the switching time of the bi-stable 10 and the output circuits 11, 12 and is just longer than this time. The bi-stable and output circuits may be a 74 S74 integrated circuit, this having the cross couplings which made it bi-stable taken from points (Q 3 Q 13  collectors, Fig. 2, not shown) in the circuit before the outputs Q, Q. The clock input is held permanently low to render the data input inoperative, only the slave portion of this device being used. As shown the logic circuit may consist solely of NAND gates used as buffers 11, 12 or as logic gates 13, 17, 18. In another embodiment, Fig. 3, other types ofbistables can be used with an emitter follower 21, 22 connected to the complementary outputs Q, Q and logic connected to their outputs. With ECL logic it is necessary to take both Q, Q and a fraction of this Q', Q' for application to two ECL stages (33, 34, Fig. 4, not shown).
Patent GB-1181206-A (GB)
Title: Protective Device for Series Capacitor Installations
IPC: H02H7/16
Filed: 1968-01-24
Abstract: 1,181,206. Protective arrangements. WESTINGHOUSE ELECTRIC CORP. 24 Jan., 1968 [27 Feb., 1967], No. 3671/68. Heading H2K. [Also in Division H1N] A protective device for a series capacitor installation comprises a housing containing a plurality of spark gaps 31, 32 connected across individual portions of the capacitor installation, a by-pass switch 33, 34 in parallel with the spark gaps and means for applying gas to the housing to extinguish arcs between the gap electrodes and switch contacts. In the arrangement shown, the capacitor installation is in four portions 12 . . . 15, each portion being in parallel with a spark gap 31 or 32 and a switch 33, 34 being provided in parallel with each two portions 12, 13 and 14, 15, the switches being operated by a common operating bar 35. When due to excess currents the voltages across the individual portions of the series capacitor installation become excessive, arcs are struck at the spark gaps and the switches are subsequently closed if there is a sustained overvoltage condition, if the arc current is excessive or if there is a loss of gas pressure. Current limiting reactors 23 . . . 25 may be provided and the switches may be opened by gas pressure acting on a piston and latched open against the bias of a closing spring by a latch which is released when any of the above conditions occur, Fig. 2 (not shown). In a modification, Fig. 3 (not shown), four spark gaps are associated with one pair of by-pass contacts in a single housing.
Patent GB-298834-A (GB)
Title: Improvements in or relating to connectors for electrical circuits
IPC: H01R9/18
Filed: 1928-02-06
Abstract: 298,834. Barrett, B. E. Feb. 6, 1928. Couplings.-A coupling for connecting either of two conductors 10 to a stud 5 comprises an insulating block 3 carrying spade terminals 1 to which the conductors 10 are connected. The block 3 is formed with a slot 4 with which the stud 5 engages as shown in Fig. 2. The block can be moved longitudinally to bring the stud into contact with either of the terminals 1 or to break contact with both. The block can be clamped in any position by a nut 6. In a modification the block is provided with only one ter. minal and in a further modification four terminals are provided, the block having two slots at right angles to one another.
Patent GB-274146-A (GB)
Title: Method of forming synthetic resinous materials and the products thereof
IPC: C08G8/28
Filed: 1926-02-09
Abstract: 274,146. Meigs, J. V. Feb. 9, 1926. Moulding resin.- A resinous product obtained by condensing a phenol with a carbohydrate, particularly the product obtained by condensing phenol with corn sugar in the presence of sulphuric acid, is treated with stearic acid, serving as a mould lubricant and ground with hexamethylenetetramine and wood fibre, whereafter the mixture is placed in a steel mould and compressed at about 170‹ C. for five minutes..
Patent GB-1524487-A (GB)
Title: Vehicle passenger restraint mechanism
IPC: B60R21/02
Filed: 1976-01-30
Abstract: 1524487 Seats with passenger restraints ARROW DEVELOPMENT CO Inc 30 Jan 1976 [24 Feb 1975] 03800/76 Heading A4H [Also in Division B7] In a passenger restraint seat assembly, such as for vehicles used in amusement rides, a U-shaped restraint arm 21 is pivotally attached at its free ends on opposite sides of the head rest position 21 of the seat 23, and is lockable in any one of a plurality of positions to accommodate a wide range of passenger sizes. As shown in Fig. 4 a restraint control mechanism 25 comprising a cylinder 33 pivotally attached to the seat back, has a piston shaft 37 extending through both ends thereof, the upper end being pivotally connected to lever arm 41 rigid with the pivot shaft 31 of the restraint arm 21. Flow between upper and lower chambers of cylinder 33 is controlled by a sliding spool valve operating, in conjunction with one way check valves 51, 53, between full and dotted line positions to permit fluid to travel in one direction or the other but not both so that the arm can be moved in a single direction only. Therefore in the full upright position of arm 21, shown in broken lines in Fig. 3, a lever 65 is placed in the broken line position of Fig. 4 thereby prohibiting downward movement of restraint arm 21. When the passenger is seated lever 65 is moved to the full line position against spring bias 50 thereby allowing the arm 21 to be pulled down and in so doing the flange 39 of shaft 37 rides on the surface .of lever 65 and rests on a stop 69 of the lever to provide a back-up mechanical lock to the hydraulic locking system. Where a plurality of seats are provided in a vehicle the associated levers 65 may be controlled simultaneously by a foot lever (27) Fig. 2 (not shown), located on the outside of the vehicle. The restraint arm 21 preferably comprises a steel bar covered with a soft resilient material.