baber/WOPTO huggingface dataset:
Patent GB-1258400-A (GB)
IPC: H04Q1/34
Filed: 1968-04-18
Abstract: 1,258,400. Automatic exchange equipment. POST OFFICE. 18 April, 1969 [18 April, 1968], No. 18408/68. Heading H4K. [Also in Division G5] A pulse regenerator includes a magnetic tape on which individual pulses of a train are recorded as marks on the tape which is stepped through a preset distance on receipt of each pulse and the tape is replayed at constant speed to provide outgoing pulses at equal time intervals. The tape is driven by a transport mechanism which is controlled so that the time lag between the incoming and outgoing pulses is such that the whole train can be reproduced.  Incoming pulses.-When the line is looped relay A picks up and operates relay B through contact A1 When the loop is interrupted on receipt of the first pulse, relay A drops causing relay C to pick up and electromagnet MC is energized which moves arm 10 and causes tape 1 to become slack. Coil MY of the motor, shown in Fig. 2, is energized and rotor 4 is turned through 45 degrees to rotate capstan 2 accordingly. The tape is transported through read heads RP by zener diode controlled motor DM which turns capstan 3 and was energized through microswitch contacts MS when the tape went slack. Termination of the pulse results in relay A picking up so that motor coil MX is energized and the energy stored in coil MY is applied to the record head Rc to mark the tape. Rotor 4 turns through a further 45 degrees to advance tape 1. The sequence repeats until the complete train has been recorded when after a delay relay C opens to de-energize electromagnet MC whose armature MC<SP>1</SP> falls back and drives capstan 2 so that a length of unmarked tape is provided after the last pulse of the train. Arm 10 falls back to provide a tape loop and when the tape becomes tight the microswitch MS is operated to stop the motor DM. The record head includes a permanent magnet to provide erasure of the record before the mark is recorded. Outgoing pulses.-The reading head Rp consists of two spaced apart head units which are connected to toggle TG so that when the marks on the tape pass the head, relay P is operated to provide a train of equi-spaced pulses. The reading head may consist of two half-track heads rather than a single.  The recording drive motor may be modified to only have two poles and can drive the capstan through a rack-and-pinion arrangement. Alternatively an electromagnet may drive the capstan shaft through a pawl and ratchet, Fig. 5 (not shown), in which case the arrangement of coils and relay contacts shown enclosed in Fig. 3 is modified, Fig. 6 (not shown).
Patent GB-1266460-A (GB)
Inventor: GRIEM JR P D
IPC: C03B7/06
Filed: 1968-03-14
Abstract: 1,266,460. Automatic temperature control systems. OWENS-CORNING FIBERGLAS CORP. March 14, 1968 [March 31, 1967], No.38377/70. Divided out of 1, 221, 864. Heading G3R. An apparatus for heat-treating material comprising a heating zone with a material inlet and outlet and means for sensing the temperature of a material in the zone and regulating the amount of heat supplied by a heating means, also has a means for detecting a predetermined change with respect to time in the temperature which inhibits the regulating effect of the control means outside of a determined band. The material may pass through a succession of heating zones each con-  trolled and supplied with heat independently and a signal from the first zone, after a delay may, modify the control of the second zone et seq. The forehearth of glass melting furnace 110 has a plurality of zones 1-3, the temperature in each zone being sensed by a thermocouple e.g. 140 and fired by separately controlled gas or oil fired burners. If a cool mass of material flows into the forehearth the thermocouple 140 will sense a reduced temperature and hence will normally supply a signal to controller 150 which increases the rate of firing of burners 120. Such signal is therefore passed through an analyzer 160 which may be a computer which measures the temperature sensed by thermocouple 140 at periodic intervals e.g. every two seconds, as the temperature changes, until a predetermined level is reached when the signal is forwarded to controller 150 to prevent a further increase in fuel supply. Alternatively the computer may measure the rate of change of temperature and provide a modifying signal to a controller 150. A modifying signal will only be sent to the controller in response to rates of change for total amounts of change above a determined level. Transient changes effected by small masses of incompletely melted material will not modify the action of the controller 150. The signal from circuit 160 may also be utilized to effect a holding action on the controllers relating to burners 122, 124 by way of delay circuits 170, 172 respectively, such delays being related to the time of passage of the incompletely melted material.  An over-riding control (not shown) is incorporated in the system so that in start up and shut down periods the analyzer 160 is inoperative. In a modification, to offset a rise in temperature during a period when the rate of change is being measured, the modifying signal may reduce the fuel supply by a determined amount. The arrangement may be utilized to provide a more even heating and curing of strips of material having irregularly occurring portions or increased or decreased masses not requiring the same heattreatment as the carriers to which they are attached.
Patent GB-1267174-A (GB)
IPC: D01H1/241
Filed: 1970-06-12
Abstract: 1,267,174. Spindle drives. BARMAG BARMER MASCHINENFABRIK A.G. 12 June, 1970 [13 June, 1969], No. 28500/70. Heading D1D. A spindle drive comprises a drive cylinder 14 and an endless belt looped saddle fashion around the cylinder with the cylinder outside the endless loop of the belt. The belt also passes around a plurality of spindle wharves which are arranged on the opposite side of a spindle carrier to the spindles 5, 6. The belt may pass around a tensioning roller 14 mounted on a pivotable plate 18.
Patent GB-1295276-A (GB)
IPC: A61Q1/12
Filed: 1969-11-06
Abstract: 1295276 Lithium succinate compositions VERDUN PHARMACEUTICAL LABORATORIES Ltd 6 Nov 1969 54516/69 Heading A5B A therapeutic composition, other than a simple solution in water or a common organic solvent, comprises lithium succinate and a pharmaceutically acceptable carrier. The composition may also contain analgesics such as benzyl alcohol and menthol; antibacterials and antibiotics such as zinc phenolsulphonate, bacitracin, polymyxin, and tetracyclines; anti-inflammatory corticosteroids such as prednisone, prednisolone, 6-methyl prednisolone, hydrocortisone and 6α-fluoro-16α-hydroxyprednisolone and conventional additives. The compositions may be made up for oral or topical use or in the form of suppositories.
Patent GB-1296042-A (GB)
IPC: D01D5/42
Filed: 1969-12-01
Abstract: 1296042 Making rollers ERNEST SCRAGG & SONS Ltd 30 Nov 1970 [1 Dec 1969] 58485/69 Heading B3A A cylindrical roller, for scoring or shearing a film during the formation of filaments, is formed by grinding the surface of the roller to an accuracy of at least 25 microns and forming a surface relief pattern either by cutting or etching helical or annular grooves in the surface or by forming ridges by helically winding wire around the roller. The grooves may have a width of about 100 microns and may be cut by a diamond stylus rigidly held in a tungsten carbide block. The ridges may be formed by helically winding a hard stainless steel wire, having a diameter of between 50 and 300 microns, around the roller and retaining the wire by using an epoxy resin adhesive or a shallow helical groove in the face of the roller, or by welding or brazing. The wire or grooves may be in the form of a single or multi-start helix and more than one layer of wire may be wound on the surface.
Patent GB-1296366-A (GB)
IPC: B30B11/00
Filed: 1969-12-12
Abstract: 1296366 Stamping MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 12 Dec 1969 [13 Dec 1968] 60844/69 Heading B3Q [Also in Division B5] Containers 5, including a positive electrode depolarizer moulded therein (see Division B4-B5), are transported by gripping means 35 of an intermittently rotated horizontal table to a station at which the open end of the container is curled against a fixed lower die 42 by a vertically reciprocated upper plunger 40.
Patent GB-1297814-A (GB)
Title: Improvements in or relating to fault detectors
Inventor: PLOULYAKH V S
IPC: H02H7/08
Filed: 1970-01-07
Abstract: 1297814 Protective arrangements V S POLULYAKH V N KHODKEVICH V G YAKOVENKO and V S KILDISHEV 7 Jan 1970 772/70 Heading H2K An arrangement for detecting faults in the rotor circuits of the exciter of a brushless machine, comprises a stationary induction pickup unit 1 in which a pulse is induced as each rotor circuit passes the unit, a signal distributing unit 2 having a plurality of output channels and operative in response to drive pulses to cyclically couple each channel in turn to the pick-up, means 3 for providing a drive pulse just prior to the passage of each one of the circuits except a datum one, past the pick-up, and means 4 for providing a datum signal just prior to the passage of the datum circuit past the pick-up, the datum signal resetting the signal distributing unit to initiate a fresh cycle. The induction pick-up unit 1 may comprise a U-shaped core with windings on its limbs and positioned close to the path of the rotor circuits, and may include an amplifier. The other units 3, 4 may each include a toothed rotor on the machine shaft the toothed rotor co-operating with a U-shaped permanent magnet having windings. The toothed rotor of the unit 3 has a plurality of teeth corresponding to the number of circuits less one, and the toothed rotor of the unit 4 has a single tooth. The signal distributing circuit 2 may comprise a binary counter and a diode matrix, its output channels being connected to a control unit 5 having an amplifier, relay and signal lamp for each rotor circuit, and in addition to indicating a defective circuit and its position, supplies signals to an automatic control and protective system for the exciter. The rotor circuits are protected by fuses, the arrangement responding when pulses are not induced in the pick-up 1 by one or more rotor circuits.
Patent GB-1303422-A (GB)
IPC: B29C53/56
Filed: 1968-10-18
Abstract: 1303422 Moulding reinforced articles GLACIER METAL CO Ltd 19 Jan 1970 [18 Oct 1968] 49569/68 Heading B5A [Also in Divisions D1 and F2] A bearing bush in the form of a shell with inner and outer cylindrical smooth surfaces of synthetic plastics material, e.g. nylon, polyethylene, polypropylene or polytetrafluoroethylene, is reinforced by lengths of filament, of glass, metal, carbon, silicon or asbestos, adjacent lengths of which are laterally separated by spacer pieces of the same or different plastics material whereby contact of all the surface area  of the filament with plastics material is obtained. The spacer pieces may be constituted by lengths of separating filaments or the reinforcing filaments may be pre-coated with plastics material. In Fig. 1, the matrix is made by winding nylon tape on a former 14 to form a base layer 13, then winding the reinforcing filaments 10 coated with plastics material thereon, followed by another layer of nylon tape 11. Heating may be applied to effect coalescence of the plastics material. A further layer of plastics coated reinforcing filaments may be wound thereon in the shape of a helix with the opposite hand.
Patent GB-1303737-A (GB)
IPC: G05B19/23
Filed: 1970-06-05
Abstract: 1303737 Programmed control of machine tools CINCINNATI MILACRON Inc 14 May 1971 [5 June 1970] 27376/70 Heading G3N A motor-driven member is positioned in accordance with a train of command pulses, the rate of which is determined by a comparison between an analogue signal proportional to the distance to go to a desired end position and a record analogue signal varying in approximate correspondence with the square of the command pulse rate. As shown, the actual co-ordinate position of a member is held in register 10, 11 and the desired position is initially entered, from a tape programme, in registers 12, 13. A subtraction is then carried out leaving the initial position differences in registers 12, 13. The output of a command pulse oscillator simultaneously decrements registers 12, 13 increments registers 10, 11 and controls pulse motors 19, 20 positioning the member. When the count in registers 15, 16 fall to zero to open gates 17, 18 and stop the system. Selected intermediate bits from the registers 12, 13 are alternately transferred to a register 21 in accordance with a cycle timed by a circuit 25. The output of the register 21 representing distance to go is fed through a digital - to - analogue converter 22 and an operational amplifier 23 to a differential comparator amplifier 28 the other input of which represents the square of the command pulse rate. When V S  - V F  falls to zero, or some other threshold level, a signal SD is generated by amplifier 28 which initiates a slowdown operation by the oscillator 14 which continues until a reference V1 is reached, detected by a differential comparator amplifier 26 after which the system creeps to the desired position. The signal VF is derived from the command pulse train by an integrating operational amplifier 24 having diodes 29 in a feedback path whereby the square law is represented by two linear sigments. The oscillator 14 is voltage controlled and incorporates facilities whereby the maximum pulse rate is manually or from the tape programme via a digital - to - analogue converter, change in pulse rate is limited by a delay circuit, and provides override when frequency dividers are used in the motor units 19, 20.
Patent GB-1305647-A (GB)
IPC: B65H23/08
Filed: 1970-05-08
Abstract: 1305647 Feeding webs WITTON-JAMES Ltd 7 May 1971 [8 May 1970] 22299/70 Heading B8R The tension in a web 6 being unwound from a reel R2 is maintained constant by a tensioning belt 7 which engages the reel R2 and which is driven by a motor Mo at a speed slightly less than the peripheral speed of the reel; the belt 7 passes over a pulley P2 which is movable to vary the tension in the belt under the control of a pneumatic cylinder 19 responsive to variations in web tension as detected by a sensing roller 45 associated with a pneumatically  operated monitoring unit M connected to the  cylinder 19, and compensating means are provided between the cylinder 19 and the pulley P2 so that the increase in the tension of the belt for a given increase in tension applied by the cylinder increases as the reel diameter decreases. With this arrangement the pressure limits normally required for the control system are effectively narrowed, and constant web tension can be maintained for a given cylinder pressure throughout the life of a reel. As shown, the compensating means comprises a pivoted cam 14 around which a strap 12 connected to the movable pulley P2 is arranged to be wrapped as the cam is rotated by operation of the cylinder 19, the shape of the cam being such as to providethe required tension characteristics. In a seond embodiment the movable pulley is supported eccentrically between a pair of coaxial gear-wheels movable along parallel tracks (Figs. 3 and 4, not shown) whilst in a third embodiment the movable pulley is supported by a pivoted arm co-operating with a cam surface of appropriate form (Figs. 5 and 6, not shown).
Patent GB-1313854-A (GB)
Title: Handling of extruded products
IPC: B29C48/475
Filed: 1969-06-14
Abstract: 1313854 Cutting extruded lengths RAWDON Ltd 29 May 1970 [14 June 1969] 30253/69 Heading B5A [Also in Division G4] A transducer is actuated as an extruded product 6 moves to supply pulses proportional to the length of the product to counter 15, at predetermined counts the counter actuating a switch so that a desired operation is carried out. The apparatus is used for cutting off desired lengths of extruded clay pipes by the switch cutting off the power supply to the extruder when the required length has been extruded. As the pipe 6 is extruded against a movable bed 7 supported on hydraulic rams 8, a rack 10 moves in front of proximity detector 13, the pulses from which are counted in four channels D1-D4 of counter 15, each channel controlling a separate operation. The rack may be replaced by a toothed bar (20, Fig. 2, not shown) driving a toothed wheel (22) in front of a detector (13).
Patent GB-1315519-A (GB)
Title: Spinal traction apparatus
IPC: A61H1/02
Filed: 1970-12-22
Abstract: 1315519 Spiral traction apparatus E W TAYLOR 7 Oct 1971 [22 Dec 1970] 60759/70 Headings A5R and A6M A spinal or cervical traction device comprises a harness or sling for fitting around the body or to the head and a hand operable winch 15 associated with said harness said winch comprising a worm driven by a handle 20, the worm being in mesh with a worm-wheel keyed to a drum, to which is attached and on which may be wound a flexible connector 16, the free end of which carries a link for engagement with a suitable fitting secured in a elevated position. A harness for attachment to the head to produce cervical traction comprises two flexible members 10' attached to the winch 15 by buckles 12, the flexible members having at their lower end buckles 30, which are attached to a bar 31, and carry on hooks 32 a pair of head engaging slings 33, 34. For spinal traction a simple padded sling (A) Fig. 1 (not shown) may be passed under the arms.
Patent GB-1316285-A (GB)
Title: Pedestal-type stands
IPC: A47G25/06
Filed: 1970-10-29
Abstract: 1316285 Pedestal stands; furniture feet GENYK PRODUCTS Ltd 29 Oct 1970 51450/70 Headings A4H and A4U A metal or plastics laminor forming the base or foot of a pedestal stand is apertured for passage of the lower end of a stem 2 and the connection of the foot with the stem is rigidified by tensioning a central area 5 of the lamina, surrounding the aperture, between upper and lower rigid metal plates 10, 7 by abutment of a shoulder 12 with the upper plate 10 on screw-threaded engagement  of the stem end 11 in a nut 8 rivetted to the lower plate 7. The lamina is dished at 5 and has an annular bead 6 abutting the lower plate 7 so that downward pressure by the plate 10 tensions the lamina. In a modification, the plate 7 is circular and the lamina is domed and is compressed by pressure of the plate 10. The stem is in two parts connected by screwing and is screwed to a platform (3) to support a bird cage or is provided with standard lamp parts or coat pegs.
Patent GB-1320822-A (GB)
Title: Lifht-sensitive semiconductor arrangements
IPC: H01L21/00
Filed: 1971-09-20
Abstract: 1320822 Semi-conductor devices SIEMENS AG 20 Sept 1971 [8 Oct 1970] 43673/71 Heading H1K In a light sensitive device comprising a matrix of sensitive elements arranged in rows and columns, each element includes a heterojunction between a region formed in the substrate and a thin semi-conductor layer which is light transmissive and also serves as an antireflection coating. As shown. Fig. 1, a plurality of parallel N type regions 2 are formed by diffusion in a P type Si substrate 1. The surface is covered with an SiO 2  layer 3 in which are formed windows, and transparent strips 4 of SnO 2  are deposited by decomposition of SnCl 2  so that each strip 4 forms a heterojunction with each of the diffused regions 2 within the windows. The diffused regions 2 are provided with contacts 5 and the SnO 2  strips 4 are provided with contacts 6. In a modification. Fig. 2 (not shown), the sensitive elements are in the form of bipolar photo-transistors produced by diffusing individual base regions into the device sites in the diffused regions which act as the emitter regions, the orthogonal SnO 2  strips forming heterojunctions with the base regions and acting as the collector regions. The SnO 2  may be doped with Sb to change the spectral response of the device. The thin semiconductor layer may also be of In 2 O 3  which may be doped with Sn, Ti, or Cd. The semi-conductor body 1 may also be of Ge or GaAs.
Patent GB-1322718-A (GB)
Title: Filters for filtering gaseous streams
IPC: B01D46/24
Filed: 1969-10-29
Abstract: 1322718 Filter elements D A G MARSHALL 19 April 1971 [29 Oct 1969] 52943/69 Headings BIT and B1D A gas filter element, particularly for an I.C. engine air intake, comprises a piece of polyurethane foam which is initially flat but is bent into annular form and has its abutting ends joined. The element may have two layers, the outer one having larger pores, and is reinforced by being contained between concentric grids in a housing (Fig. 2, not shown) and by having a supporting mesh bonded thereto. Such a mesh may be of synthetic plastics, which is applied to one layer by passing the layer under a row of extrusion nozzles in two orthogonal directions, then pressing the two layers together so that the resulting mesh 38 bonds them, before bending the layers to annular form. Alternatively, a metal mesh is heated and dipped in polyethylene powder and pressed between two layers or against one layer until the polyethylene hardens. Or the mesh is coated with polyethylene, pressed against the layer(s) and heated by passing electricity. When the layer(s) are bent to annular form, the abutting edges of the reinforcing mesh are secured by wire clips (Fig. 6, not shown), as well as the edges of the foam being bonded together. In inserting the Fig. 1 element in the Fig. 2 housing, the element is compressed axially to ensure end seals.
Patent GB-1323043-A (GB)
Title: Packing equipment for use in underground mines
IPC: E21F15/06
Filed: 1971-01-08
Abstract: 1323043 Mines &c COAL INDUSTRY (PATENTS) Ltd 22 Dec 1971 [8 Jan 1971] 1053/71 Heading E1F A packer comprises a guideway 9 held against a mine roof by roof supports (not shown) on the side of the guideway remote from the pack 6, a blade 22 pivoted about a vertical axis and reciprocable along the guideway, a stop 24 fixed relative to the guideway and cooperating with the blade to pivot the blade towards an operative position normal to the guideway at the end of the blades travel away from the pack. The blade is mounted on a slide 14 reciprocated by a chain 10. During operative movement of the blade material 26 removed while forming roadway 4 is moved from a table 2 into a space 8 for extension of the pack.
Patent GB-1329936-A (GB)
Title: Oven door hinge
IPC: F24C15/02
Filed: 1972-03-28
Abstract: 1329936 Hinge for oven door UNITED FILTRATION CORP 28 March 1972 14353/72 Heading E2F A hinge for an oven door comprises an elongated casing 1 adapted to be mounted on a frame of the oven, and an arm 2 connected to the casing by a pivot 3 to rotate about a horizontal axis and adapted to be received in a socket 6 on the door 7, with means including a compression spring 36 urging the arm 2 towards the closed position, Fig. 3 (not shown), and a latch movable between an operative position when the door is removed from the arm in which it interferes with the rotation of the arm to retain it in a partially open position, Fig. 2, and an inoperative position when the door is installed in which it does not so interfere. Thus the hinge cannot snap to its closed position when the door is removed for cleaning or while the hinge is being installed. When the door is in position its weight is counterbalanced by the spring 36, and when it is moved to the partially open position, which may be used for broiling, cam roller 44 engages detents 50 to hold the door. Also in this position cam roller 45 moves a further latch 23 from a position (Fig. 1) in which it engages an aperture in the door to a position (Fig. 2) in which it allows the door to be removed. The latch preventing the hinge closing may be a bar 54 carried by a spring 61 and movable by the door from a position in which it engages a locking land 56 on pivot bracket 24 to one where it may enter a slot 57. Alternatively, Figs. 7-9 (not shown) the door may rotate a pivotally mounted bar (63) so that it does not engage a land (71) on the bracket 24; or the door may cause a bar (73), Figs. 10-13 (not shown) which is urged by a spring (82) into a slot (76) in the bracket 24, to be removed therefrom.  (For Figures see next page)