baber/WOPTO huggingface dataset:
Patent GB-1362379-A (GB)
Title: Machine tool having automatic means for tool-change
IPC: B23Q3/155
Filed: 1971-10-15
Abstract: 1362379 Automatic tool change; boring head machine ING C OLIVETTI & C SpA 15 Oct 1971 [31 Oct 1970] 48158/71 Headings B3B and B3C A machine tool with automatic tool-change includes a spindle 16, a series of tools 116, a magazine for the tools, track 28 to move the tools in a path which includes a tool-change station 49 and tool-change means to transfer a tool from the tool-change station to the spindle, a simulator track 178 simulating the path of the tools and a series of simulator elements 176 carrying identifying indicia so that each simulator element corresponds to a tool, a reading device located at a reading station 191 on the simulator track and adapted to read the identifying indicia of the simulator elements as they pass the reading stations, and means to cause the arrest of the tools and simulator elements when the reading device reads a simulator element corresponding to a required tool located at a predetermined position in the path of the tools. In operation spindle 16 is moved upwardly so that a tool therein can be transferred to arm 46 of the transfer means. Arm 46 is then pivoted upwardly causing arm 48 also to so pivot. The next tool required, carried in a carriage 110, has already been located next to the tool-change station so that movement of the tools through one tool spacing locates the correct tool in the tool-change position. Movement of arms 46, 48 is reversed to allow said tool to be positioned for transfer to spindle 16. Suitable location of a given tool is obtained by the tools and simulator elements being rotated together until a signal from the reading device agrees with the signal from a programme at which stage the movement of the tools and the simulator elements is halted. The simulator track has a slide 192 so that a simulator element is removed from the track when its corresponding tool is moved into spindle 16. The reading device can be mechanical with feelers measuring the size and shape of cams or electrical with proximity switch members on each simulator element to a different pattern. When the tools and simulator elements are halted they are then subject to a slight reverse movement to ensure accurate location of the carriage carrying the next tool required.
Patent GB-1396117-A (GB)
Title: Variable speed bowling ball accelerator
IPC: A63D5/02
Filed: 1972-10-19
Abstract: 1396117 Bowling ball accelerator A M F INC 17 Oct 1973 [19 Oct 1972] 48161/72 Heading A6D A system for accelerating a bowling ball 40 comprises an accelerator 10, guide means 18, 19 for guiding a ball into and out of the vicinity of the accelerator, drive means for driving the accelerator at a relative slow speed, drive means for driving the accelerator at a relative fast speed, a sensing device 38 for sensing the presence of a ball in the vicinity of the accelerator and means for changing the drive from the slow speed to the fast speed upon the sensing of a ball by the sensing device. As shown the accelerator is in the form of a continuous belt 10 driven from motor 34 either at a slow speed via belt 37, pulleys 32, 29, belt 25 and pulley 23 which incoroporates a one way roller clutch, or at a faster speed via belt 37, pulley 32, electromagnetic clutch 26 pulley 31, belt 24, and pulley 22. When operated at the faster speed the pulley 23 continues to rotate at the slower speed by virtue of the one way clutch -incorporated therein. The clutch 26 is operated by the sensing device 38 and the circuit between the two may incorporate a time delay the arrangement being such that the ball is received and initially moved by the belt 10 at a slow speed and subsequently accelerated to a relatively faster speed and discharged at this faster speed. It can be arranged that the change of speeds is gradual. A further ball sensing device 41 may be provided to disengage the clutch 26 so that the mechanism reverts to the slow speed or this' can be done by incorporating a time delay device in the circuit. In a second embodiment (Figs 3, 4, not shown) two separate motors are employed one (68 for the slow speed and incorporating an overrun clutch (71) in its drive to the accelerator and another (79) for the fast speed and including a flywheel (88) in its drive, the two drives being connected to the accelerator through an electromagnetic clutch (60) operation of which changes the drive from the slow to the fast speed. In a further embodiment (Figs 5, 6, not shown) similar to the second the alternate drives are taken to the opposite ends of the accelerator belt. Instead of a belt being used for the accelerator a wheel may be used the guides then being of arcuate form around the periphery of the wheel. The device may be used to return balls direct to a bowler or to elevate them to a ramp down which they roll to return to the bowler. Instead of the clutch being electrically operated, hydraulic, pneumatic or direct mechanical operation may be used.
Patent GB-1515688-A (GB)
Title: Battery construction
IPC: H01M10/12
Filed: 1975-11-25
Abstract: 1515688 Multi-cell battery DUNLOP AUSTRALIA Ltd 25 Nov 1975 [25 Nov 1974] 48470/75 Heading H1B A multi-cell battery includes a plurality of frames of mouldable electrically insulating material inert under battery use conditions, each frame defining a plurality of separate material support areas 22, 23, 24 side-by-side across the frame, each frame having dividers 20, 20a between said areas, the frames being stacked normal to their width with said dividers of adjacent frames mutually sealed, active battery material in each said area to form a plate of the battery, arranged so that adjacent areas along and normal to said frames form plates of opposite polarity, and electrolyte porous separator members 32 interposed between active material of adjoining frames, said separators being supported and positively located by cooperation with at least one adjoining frame. As shown, the means for said positive location may be a shoulder 48 on a divider 20, 20a, which co-operates with an adjoining divider to give a groove 49 which holds the separator 32; in another embodiment (Fig. 6, not shown) the separator is mounted in its own frame, and this frame is stacked between two adjacent materialbearing frames. The battery may be lead-acid; 31 is a gas space; 26 is a lead grid having lugs 37 for connection to similar lugs of another frame and to terminals of the battery; 26a is a lead grid joining adjacent half-cells 23 and 24; 28 is a groove for co-operation with a tongue on another frame; 33 is a porous gas-escape means; the frames may be of plastics.
Patent GB-1372255-A (GB)
Title: Vehicle transportation system
IPC: B61B13/10
Filed: 1971-10-19
Abstract: 1372255 Pneumatic conveyers GEORGIA TECH RESEARCH INSTITUTE 19 Oct 1971 48519/71 Heading B8A A transportation system comprises a conduit of uniform section having first and second loading-unloading stations operative at atmospheric pressure and pumping means 28 for continuously producing a flow of air within the conduit to move a load-carrying vehicle therethrough, said vehicle having a cross-section which substantially occludes the conduit while providing a clearance therewith so as to be swept along by the momentum of the moving air as a result of the drag characteristics of the vehicle. In the embodiment of Fig. 2, the pumping device 28 withdraws air through a porous section 24 into a manifold 22 and reintroduces the air upstream with increased momentum through a manifold 32 and nozzle 34. The vehicles have pneumatic buffers and bearing wheels to minimize friction. The conduit may be endless with stations spaced along its length and pumping devices intermediate the stations. Alternatively the conduit may have ends with a station at each end as shown in Fig. 10, such stations preferably having an inclined section to brake the vehicles and facilitate re-starting. Instead of having two pump units 98, 100 as shown for driving the vehicle in opposite directions, a pump in a branch conduit which communicates at both ends with the main conduit may be used.
Patent GB-1362006-A (GB)
Title: Thermostat control system for use in electrical room or space  heating installations
IPC: G05D23/275
Filed: 1971-10-19
Abstract: 1362006 Automatic temperature control J CARLSEN 19 Oct 1971 [ 20 Oct 1970] 48602/71 Heading G3R [Also in Division H1] A temperature control system for room or space electrical heating comprises a relay, a mechanical thermostat switch with thermal feedback, the switch controlling the energizing current to the relay actuating element, which consists of metal wire wound around at least two insulating members, one being stationary, another being moveable and coupled to a spring- biased contact in the heating element circuit. In the embodiment shown, as the temperature falls, thermostatic switch 5, with contact pressure of about 0À25 grams, closes contact 6, allowing current to flow through a wire coil 8 in a thermal relay 4. The coil, which may be of chromium-nickel wire, with a time response of 2 to 3 seconds, is wound around at least one fixed insulating member 9 and a movable insulating member 10. The coil expands due to the current flow, allowing spring 12 to close contacts 2, 3, energizing a heating element 1 e.g. of a radiator. Current flowing through contacts 6, when closed, heats up an auxiliary element 7 in the switch 5 to open the contacts 6 in anticipation of a temperature rise and to increase the system sensitivity.
Patent GB-1359273-A (GB)
Title: -airport- board/card/game
IPC: A63F3/00
Filed: 1972-10-21
Abstract: 1359273 Board game SEM WHITTLE 21 Oct 1972 48613/72 Heading A6H An aircraft race game comprises a board marked with an airport, a plurality of aeroplane markers, a dice, a plurality of flight plan cards having spaced numbered locations thereon, and three packs of cards representing hazards, bonuses and flight-path-to-runway movements.
Patent GB-1513050-A (GB)
Title: Electric current circuit arrangement for reducing the switch-on power dissipation of a power transistor
IPC: H03K17/64
Filed: 1975-11-28
Abstract: 1513050 Transistor switching circuits MASCHINENFABRIK RIETER AG 28 Nov 1975 [20 Dec 1974] 48987/75 Heading H3T [Also in Division H2] In a circuit in which an ohmic-inductive load 6, 7 is pulsed by a switching transistor 5, a diode 8 is conventionally provided to allow the load current I 5  to continue to circulate on switch-off, but on switch-on again the diode 8 conducts for a short period until charge carriers are cleared therefrom, temporarily overloading and possibly damaging the transistor: a second diode 9 or non-linear resistive member containing a diode connected in series with the first diode and shunted by a lowohmic inductor 10 prevents rapid growth of the current on switch-on before the first diode blocks. In a circuit in which the load current does not vary much under the rapid on-off cycle of the transistor (Fig. 4, not shown), the v.t. integral of the inductor 10 is chosen large enough to delay rise of current I 6 , but small enough to be lower than the forward drop across the non-linear resistor including diode 9. The choice of inductor is eased by adding to diode 9 other diodes in series (Fig. 5, not shown), a Zener diode (Fig. 6, not shown), or a non-ohmic resistor with V 5 I characteristics similar to the forward characteristic of a diode. The inductor 10 may be allowed to saturate to assist rapid drop of current towards zero before reversal on switch on. The invention may be applied to protection of a transistor chopper providing speed regulation of a D.C. motor (Fig. 10, not shown), and is adaptable to the supply of a relay or power magnet. It is also applicable to protect the transistors of a 3-phase push-pull inverter suppling an inductive lead such as an asychronous motor (Fig. 11, not shown) and to a single inverter stage (Fig. 12, not shown).
Patent GB-1081264-A (GB)
Title: A method of and apparatus for heat treating rail-jointing and built-up welds
IPC: C21D9/50
Filed: 1964-12-02
Abstract: In a method of post-welding heat treatment of jointing and other rail welds, heat is supplied to the region of the weld by directing burner flames on to the rail at the transition between the foot and the web or between the web and the head of the rail. The duration of heating may be controlled automatically or by limiting the amount of available fuel.  Apparatus for carrying out the treatment comprises a multi-part housing enclosing the foot and web of the rail and in which the burners may be mounted, while a detachable cap for covering the rail head may also be provided.
Patent GB-1376476-A (GB)
Title: Door fastening device
IPC: E05C1/04
Filed: 1973-10-02
Abstract: 1376476 Door bolts J D GRIFFITHS 2 Oct 1973 [25 Oct 1972] 49113/72 Heading E2A A door fastening device includes a bolt 19 and a safety chain 23 one end of the chain being attached to a mounting member, i.e. keeper 15, and the other end being attached to, or adapted to be releasably attached to, a slider, the body 10 of the device having a slideway along which the slider can be moved, and the bolt being either constituted by the slider or being constituted by a separate element and slidable along the slideway. As shown, the body 10 is formed by a pressing of flanged, channel shape in cross-section and a base plate 13, the keeper 15 being of similar construction, and includes a slot 16 for reception of the slider 25 and a slot 17 for the operating knob of a bolt 19 having a U-shaped cross-section. In use, the slider 25 is inserted in the enlarged end 18 of the slot 16 but otherwise is inserted and stored in a slot in the keeper. In a modification, the cylindrical bolt 137 is constituted by the slider and the chain is attached to the operating knob 138 thereof, the latter, in use, being received in an L-shaped branch slot 134 by rotation of the bolt. The latter may be of magnetic material and held in a stored position by a magnet on the keeper.
Patent GB-1133599-A (GB)
Title: Vehicle cleaning apparatus
IPC: B60S3/00
Filed: 1966-11-02
Abstract: 1,133,599. Suction and pressure cleaning apparatus. R. E. COX. 1 Nov., 1967 [2 Nov., 1966], No. 49141/66. Heading A4F. Vehicle cleaning apparatus, particularly for cleaning buses, comprises a movable platform 11 for supporting a cleaning operator externally of the vehicle 10 to be cleaned, means, such as suction fan apparatus 14, for applying suction to an opening through which passengers normally enter or leave the vehicle, means for directing in a downwardly inclined direction an air flow induced by the suction apparatus through an opening 15 longitudinally spaced from the aforesaid opening, and at least one compressed air probe 22 which can be inserted through the opening 15 and traversed along the length of the vehicle by an operator on the platform 11 to assist movement of rubbish towards the suction apparatus. The means for directing the air flow through the opening 15 comprises a piece of flexible material 20, e.g. canvas, suspended from a bar 19.
Patent GB-1515755-A (GB)
Title: Integrated amplifier circuits
IPC: H03F3/187
Filed: 1975-12-02
Abstract: 1515755 Integrated circuits TELEFONAKTIEBOLAGET L M ERICSSON 2 Dec 1975 [4 Dec 1974] 49538/75 Heading H1K [Also in Division H3] An I.C. amplifier in a Si chip 11 comprises a plurality of transistor amplifier stages Q 1 -Q 3  with at least one negative feedback loop including a plurality of resistors R 9 , R 9 , R 4  between the output and an earlier stage, at least one of the feedback resistors R 4  having a temperature coefficient different from that of the other resistors R 8 , R 9  and being formed in physical proximity to the output stage Q 3  but being electrically isolated from it such that the negative feedback depends on the amount of heat generated by the output stage Q 3  and its thermal coupling Q with the said at least one resistor R 4 . The circuit is useful in devices where the supply current varies with the line impedance, such as in telephone sets. The resistor R 4  has a high PTC and is formed during the collector diffusion of the transistors, whereas the other resistors in the I.C. are formed during the base diffusion. The resistor R 9  may be an external thick film resistor or it may be an integrated resistor R 90 . In an alternative embodiment the feedback may be increased greatly by providing cascaded T-network resistors in the feedback loop, the stems of the T-networks being formed by PTC resistors that are thermally coupled with the output stage Q 3 .
Patent GB-1241217-A (GB)
Title: Use of lubricant compositions in the processing of vinyl chloride polymers
IPC: C08K5/098
Filed: 1968-10-21
Abstract: 1,241,217. PVC processing lubricants. FARBWERKE HOECHST A.G. 21 Oct., 1968 [21 Oct., 1967], No. 49744/68. Heading C3P. Compositions consisting of or containing vinyl chloride homo- or copolymers are processed in the presence of a lubricant comprising (a) 20-80% by wt. of an alkaline earth metal, Zn, Ca, Sn or Pb soap of an aliphatic saturated C 19 -C 36  fatty or wax acid and/or an oxidized hydrocarbon wax containing a metal soap, and (b) 80-20% by wt. of a hydrocarbon wax. The lubricant is used in an amount 0À3-5% by wt. of the polymer composition. A fatty acid ester lubricant may also be included. In Examples 1-5, (a) is either a synthetic ester wax containing a metal soap, or calcium montanate, and (b) is a polyethylene or Fischer-Tropsch paraffin wax; Examples 1 and 4 contain a tin stabilizer and Example 4 dioctyl phthalate.
Patent GB-1477826-A (GB)
Title: Apparatus for removing tamperproof closure bands from returnable bottles
IPC: B08B9/20
Filed: 1974-11-19
Abstract: 1477826 Removing tamperproof bands ALUMINUM CO OF AMERICA 19 Nov 1974 [7 March 1974] 50042/74 Heading B3W Apparatus for removing tamperproof bands 14 from the necks of bottles 16 comprises a rotary table 11 with means for guiding the bottles into the apparatus and around the table, a plurality of cutter assemblies 12 mounted in the rotary table, each assembly having a pair of pivotable jaws 20 and 22 which are actuated to sever and strip the tamperproof band from the bottle neck. The jaws 20 and 22 are connected by a pivot pin 24 and by link members 26 and 28 which are themselves connected by pivot pin 27. Pivot pin 27 is connected to cam follower 30 which, as the table 11 rotates, moves in stationary cam track 32, thereby causing radial movement of the cam follower and pivot pin which causes the jaws to open and close. Lower jaw 22 has a radially extending groove, the edges along opposite sides of the groove being sharp and dull respectively, adapted to mate with the sharp and dull edges 50 and 52 respectively of the upper jaw when the jaws are closed (Fig. 3) to thereby sever and strip the band 14 from the bottle neck, the jaws being subsequently opened as a preselected location to deposit the band. The outer ends of the jaws are arcuate for engaging against the bottle neck, and the lower jaw 22 is resiliently mounted by means of spring 42 and a slotted hole for the pivot pin 24 in jaw 22 to enable radially outward movement of jaw 22 with respect to the table. Cutter assemblies 12 are resiliently mounted in radially extending guideways in the table. Bottle guide support 76, with the aid of rotary star wheel 60, guides bottles 150 degrees around the periphery of the table and a spring loaded nylon guide strip 78 secured to the support 76 urges the band 14 towards the cutter assembly 12 when the jaws are closed to sever the band. The rotary table and hence the cutter assemblies may be adjusted vertically to remove bands from bottles of varying heights.
Patent GB-1224965-A (GB)
Title: Variable diameter v-belt pulley
IPC: F16H55/56
Filed: 1969-10-14
Abstract: 1,224,965. Expanding pulley gear. ERNST HEINKEL A.G. 14 Oct., 1969 [30 Nov., 1968], No. 50370/69. Heading F2D. An expanding spring-loaded, or externally controlled pulley gear has one pressed sheet metal flange 3, or both sheet metal flanges (2<SP>1</SP>), (Fig. 3, not shown), axially movably guided on a plurality of guide-bolts 8 engaging in plastics sleeves 27 in a bush 6 which is soldered or welded to the movable flange 3, the bush 6 having, near its ends, two integrally formed crowned bearing surfaces 13, or in Fig. 3 (not shown), two ball-bearing sets (29) spaced by a sleeve (28) centrally located by a pin (34), by which the movable flange 3 is slidable on a hub 1 to which the fixed sheet metal flange 2 is soldered or welded, a central lubricant reservoir 14 being formed between the bearings 13 and sealed by rings 16. As shown (Fig. 1), the movable flange 3 is externally adjusted via an bearing seated against a shoulder 17 on the bush 6, which together with the guide pins 8 is dimensioned to permit easy removal of the bearing, the guide pins 8 being soldered via a annular carrier 9 to a threaded ring 12 screwed on the hub 1 and secured by a filler or adhesive. In Fig. 2, the movable flange 3<SP>1</SP> is automatically controlled by a spring 21 provided with plastics rings 23 serving to centre and rotatably balance the spring 21. Telescoping plastics dust covers 24 surround the spring 21 and together with the spring 21 &c. are retained by end flanges 11, 22 retained by the guide bolts 8 and bush shoulder 17. The Fig. 3 embodiment is simply a double arrangement of Fig. 2 in which both flanges (2<SP>1</SP>) are spring- loaded and axially slidable on a centre hub, whereby the operative working plane of the V-belt remains unaltered during ratio variation.
Patent GB-1061598-A (GB)
Title: Methods of making cubic boron nitride
IPC: C01B21/064
Filed: 1963-12-23
Abstract: Cubic boron nitride is made by subjecting to an elevated temperature and pressure a mixture of ingredients comprising (1) hexagonal boron nitride or a mixture of (a) elemental boron or a compound of boron decomposable to elemental boron at the said temperature and pressure together with (b) a source of N2, and (2) at least one lanthanide or actinide metal or a compound of such a metal decomposable to the metal itself or the metal nitride at the said temperature and pressure.  The cubic boron nitride produced exhibits radio-activity throughout the crystal matrix. Sources of nitrogen include imines, amines, azides, nitrides, cyanides and cyanamides.  N2-containing compounds of a lanthanide or actinide, e.g. a nitride, may be used as a source of both N2 and the metal.  Alloys of actinides and lanthanides may be employed.  In examples, mixtures of hexagonal boron nitride and Th, U or La are treated to give radio-active cubic boron nitride which is isolated by cooling the reaction mass, dissolving the matrix in HCl or aqua regia and separating unreacted hexagonal boron nitride by hand or using a flotation technique employing bromoform.