baber/WOPTO huggingface dataset:
Patent GB-1194596-A (GB)
Title: Web Unwind or Rewind Apparatus
Inventor: DALGISH HERBERT FRANCIS
IPC: B65H16/10
Filed: 1967-09-12
Abstract: 1,194,596. Web unwind/rewind apparatus. H. F. DALGLISH. 12 Sept., 1967 [7 Oct., 1966], No. 41579/67. Heading B8R. [Also in Division F2U] At least two-web rolls 14 and 15 (three in Fig. 10) are mounted on a single shaft 13 for rotation independently of each other. One roll 15 is either braked or driven by the shaft 13; the other roll 14 is either braked or driven by means engaging the periphery of the roll, e.g. a feed belt 67, Fig. 1 or a weighted brake band (83, Fig. 5). The rolls are mounted on the shaft 13 by pairs of chucks 17 and 34. The chucks are of the type provided with a series of angularly spaced generally rectangular slots 19, Fig. 4, which are parallel to the axis of the chuck, and which contain elongated bars 20 which are of generally triangular section. The bars 20 are held in the slots 19 by an endless resilient band 21. With a core 16 slipped on to the chuck, relative rotation between the chuck and the core causes the bars 20 to pivot in their grooves, causing the apex of each bar to firmly grip the core. Chuck 34 for web-roll 15 is clamped to the shaft 13 by a set screw (50, Fig. 8), so that the roll rotates with the shaft. Chucks 17 and 34 for roll 14 are allowed to rotate relative to the shaft 13.
Patent GB-1018573-A (GB)
Title: Improvements in and relating to servo systems
Inventor: PESTEL WOLFGANG
IPC: G05D3/18
Filed: 1962-11-02
Abstract: 1,018,573. Follow up servo systems. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Nov. 2, 1962, No. 41585/62. Heading G1N. In a follow-up servo system, (e.g. to position selector switches on transformer tap change gear), a command signal +W (Fig. 1) from a selsyn S2 and an actual displacement signal -X, from an indicating selsyn S1, are compared in a differential selsyn S which produces an error signal Xw To prevent hunting a feed back signal Xr related to the speed of a follow up D.C. motor M is added to the signal Xw in a comparator CO (e.g. a differential selsyn) the output of which is fed to a phase rectifier PR which produces a direct voltage Xe. The polarity of Xe changes as the phase relationship between the command and actual displacement signals is changed by 180 degrees electrical. The signal Xe = X w  - Xr is applied to a trigger stage TR which controls, through a pre-amplifier, a power stage PS (Figs. 3, 4 not shown) which produces a train of pulses Y to drive the motor M. The signal Xr comprises a D.C. voltage from a bridge circuit FB superimposed by a modulator MO on an A.C. source S.S. which also supplies the command and indicating selsyns. When the motor has a small time constant, a feedback signal responsive to the motor speed may affect the stability of the impulse frequency. Then an R-C circuit (Fig. 5 not shown) is preferably used instead of the bridge circuit, the R-C circuit is charged up when the motor rotates and discharges when it is stopped. In operation when the signal Xe exceeds a value X ON  the trigger stage TR causes the power stage PS to send pulses to the armature until Xe decreases to a lower value X OFF  (Fig. 2a not shown). The average motor speed is therefore a function of the "on" to "off" ratio, and overshooting is avoided as the average motor speed and rate of follower movement is further reduced by the Xr signal. The power stage PS is fed from a D.C. source and includes four power transistors (Fig. 3 not shown) which form a changeover switch arrangement, which, when a pulse is received from the trigger circuit sends current through the motor armature in one or other direction, according to the sense of the signal Xe, so as to rotate the motor to reduce the error; and after each pulse and when Xe is zero short circuits the armature to cause braking.
Patent GB-869105-A (GB)
Title: Improved hydraulic actuators
IPC: F15B21/08
Filed: 1959-12-08
Abstract: 869,105. Hydraulic apparatus. RECHERCHES ETUDES PRODUCTION. Dec. 8, 1959 [Dec. 8, 1958 ; June 3, 1959], No. 41779/59. Class 69 (2). [Also in Group XXVIII] An hydraulic double-acting jack 5, Fig. 1, comprises an electrically-operated generator 1 of hydraulic energy, and an electrically-controlled distributer having a moving mass 10 actuating two exhaust valves 106, 206, each of the two chambers 105, 205 of the jack being coupled to the generator and to an exhaust valve. The generator 1 has a coil which is supplied with alternating current from a supply 2 and reciprocates a mass 3 having pistons 101, 201 which draw fluid through ports 102, 202 from a chamber 4 and pump it past valves 103, 203 to lines 104, 204 leading to the chambers of the jack. Pressure in the chambers is controlled by the exhaust valves 106, 206 which, in turn, are controlled by a mass 10 movable to the right or left by an electromagnetic device 6 operated by alternating or direct current from a source 9. The valves 106, 206 are spring-urged to the open position when the device 6 is not energized. A signal proportional to the displacement of the piston of the jack from its central position may be obtained from an energized coil 12 movable with the piston-rod between fixed coils 107, 207 which are mounted in a magnetic circuit 14 and connected to terminals 108, 208. In another embodiment, the distributer comprises two reciprocatable masses, one controlling a pair of inlet valves and the other a pair of exhaust valves, one inlet and one exhaust valve being connected to each chamber of the jack. The valves may be of the ball, sliding or conical type. In a further embodiment, the generator pistons 101, 201, Fig. 3, are reciprocated by the electromagnetic device 1, and the exhaust valves 106, 206 are controlled by solenoids 111, 211. With both solenoids de-energized, both valves are closed and the piston of the jack is locked in position. The piston can be moved to its lowermost position without employing the generator 1 by deenergizing a solenoid 214 which permits the seating 212 of the valve 206 to move and open the valve. The same signal de-energizing the solenoid 214 may de-energize a solenoid 23 which releases a latch 22 to allow the spring- urged piston 20 of an accumulator 19 to supply fluid under pressure to the chamber 105 of the jack. The seating 112 of the valve 106 is movable against a spring 113 to open the valve in the event of excess pressure occurring in the chamber 105; the valve 206 may be similarly arranged.
Patent GB-1492704-A (GB)
Title: Postage meters
IPC: G06Q30/04
Filed: 1975-10-13
Abstract: 1492704 Postage meters PITNEY-BOWES Inc 13 Oct 1975 [23 Dec 1974] 41851/75 Heading B6D A postage meter incorporates a microcomputer set. Input to the microcomputer processing unit is by keyboard 34, but remote input stations may also be used. The input may be multiplexed to display 35. The microcomputer set includes a central processing unit, read only memories containing the postage meter programme, random access memories for computation and a non-volatile memory, e.g. battery powered, to which data is transferred when the system is shut down to prevent loss. The microcomputer set has outputs to set the postage value of a postage metre printing cylinder 103, and also controls the indexing of an ascending and a descending register amount. The microcomputer may also include a register amount corresponding to the total of these two, and a comparison between this register amount and the sum of the amounts in the ascending and descending registers may be made to check for faults. The unit may also display these amounts. The unit also controls various indicator lamps, e.g. "check date", "call for service", lamps indicating what is displayed in the display, and the system may prevent printing of an amount greater than a set amount unless a button is pressed in the keyboard, there being an indicator lamp to show that this button needs to be pressed. Further credit may be added to or subtracted from the system by using the keyboard in conjunction with switches 122, 123 normally concealed behind panel 125 retained by seal 121. Alternatively, the credit may be amended form a remote source. The printing operation may be actuated by button 108 when a "meter enabled" indicator lamp is illuminated by the system, or actuation may be effected by detection of a piece of mail 104 inserted.
Patent GB-862663-A (GB)
Title: A rotary piston motor
IPC: F01C1/356
Filed: 1959-12-09
Abstract: 862,663. Rotary motors. BERG, H. H., and HARTMANN, H. J. Dec. 9. 1959 [Dec. 10, 1958], No. 41938/59. Class 110 (2). A multi-cylinder hydraulic motor of the outwardlysliding abutment type has the abutment 10, pressed downwards on to the rotors 4, by strong springs 19, to act as brakes when the rotors are to be stopped on cutting off of fluid pressure to the working chambers C. Admission of fluid under pressure to chambers C acts through ducts 22 to lift plungers 18 against the springs 19.
Patent GB-1298408-A (GB)
Title: Improvements in or relating to gas burner nozzles
IPC: F23Q3/00
Filed: 1970-09-02
Abstract: 1298408 Gas burner nozzles MANSEI KOGYO KK 2 Sept 1970 [26 Sept 1969] 42013/70 Heading F4T In a gas burner nozzle, for example for use in a cigarette lighter a cylindrical body 1 contains a spiral member 2 which forms a main gas outlet passage 12 communicating with a fuel reservoir by way of a passage 11 and a subsidiary gas outlet passage formed by the spiral space 4 in spiral member 2. In Fig. 1, the spiral space 4 communicates with a circular space 7 leading to an outlet passage 6, but other embodiments (Figs. 2, 2a, not shown) have the spiral member in contact with the cylindrical body over their common length. A spark igniter having an electrode 10 supplied by a high voltage generating device 9 provides ignition to the subsidiary gas flow which ignites the main gas flow.
Patent GB-880824-A (GB)
Title: Improvements in or relating to apparatus for administering oxygen
Inventor: CROASDAILE FREDERICK GEORGE
IPC: A61M16/06
Filed: 1959-12-10
Abstract: 880,824. Respiratory appliances. OXYGENAIRE (LONDON) Ltd. Aug. 16, 1960 [Dec. 10, 1959], No. 42059/59. Class 81 (2). Oxygen administering apparatus comprises a flexible face mask 11 having a number of apertures 17 for the escape of exhaled air and an inlet fitting 12 having a nozzle 20 through which oxygen issues at relatively high velocity, so as to entrain air through lateral apertures 22 as it enters the mask. The proportion of oxygen remains approximately constant irrespective of the total rate of flow. A second inlet tube 19, having a relatively large outlet, may also supply oxygen but as this does not produce an injector effect it serves merely to control the proportion of oxygen supplied to the patient. A conical extension 13 on the fitting 12, within the mask, serves to spread it for convenient use and an elastic loop 16 holds the mask in position. The two supplies of gas are preferably taken from a single supply canister through separate control valves, each having its own flow-meter.
Patent GB-1068050-A (GB)
Title: Improvements in or relating to devices for generating a rotational jet of fluid
IPC: A01M7/00
Filed: 1963-10-24
Abstract: 1,068,050. Spray producers. R. C. M. GUETET. Oct. 24, 1963 [Oct. 24, 1962], No. 42090/63. Heading B2F. A device for generating a rotational jet of fluid has a hollow body 1a in the shape of a logarathmic spiral. The fluid is tangentially fed at 3a and discharges as a spiral vortex through an outlet 5. The tangential inlet may be inclined with respect to the body such that fluid is fed tangentiallv and towards the outlet 5. In an apparatus for producing a spray of two different materials - liquids or powders - in a spiral vortex of gas. the tangential inlet to the body is inclined, Fig. 7. and feed pipes for the materials are disposed within the hollow body 15 longitudinally thereof. In a wheeled crop spraying apparatus, which may be fed from a tractor power take-off, and incorporating two parallel and spaced jet devices each is fed with air and liquid from respective fan and tank mounted above the devices. In a modified form of this apparatus the treatment liquid is fed to the devices through a circulatory system. In another modification of this apparatus the two jet devices are dispersed coaxially with the result that one rotational jet is annular and surrounds the other. In yet a further apparatus a screw conveyer introduces powder into a single jet device. The wheeled apparatus of Figs. 13, 14 and 15 (not shown) has twin jet devices pointing in opposite directions laterally of the apparatus. These devices are mounted on a platform at the rear of the apparatus which is pivotable about a vertical axis. The devices are also capable of pivotal adjustment. If crop treatment requires a fanlike discharge from the rear of a trailer an apparatus similar to Fig. 20 may be used which has six adjustable jet devices 64 mounted in a vertical plane at the rear of the trailer.
Patent GB-1469899-A (GB)
Title: Ramp bridging device
IPC: B65G69/28
Filed: 1975-10-15
Abstract: 1469899 Loading dock bridging plates K ALTEN 15 Oct 1975 [13 Nov 1974] 42168/75 Heading B8E A loading dock bridging plate has a slidable extension portion 4 provided with a transverse strut 11 connected to its rear edge by strips 13 secured in slots 12<SP>1</SP> by bolts 15 extending through elongated holes 14. The top surface 12 of the strut 11 is inclined to provide a gradual rise to the exterior 4. When the extension is retracted from the position shown, the strut is engaged by the portion 4 and moved with it.
Patent GB-1097195-A (GB)
Title: Analog function generator
IPC: G06G7/20
Filed: 1965-10-05
Abstract: 1,097,195. R.M.S. computing circuit. COMPUTING DEVICES OF CANADA Ltd. Oct. 5, 1965 [Oct. 12, 1964] No. 42213/65. Heading G4G. A device for the piecewise-linear determination of in which voltages representing X, Y and their oppositely phase values - X, - Y are applied over similarly poled diodes D 1 , D 2  and D 2 , D 3  to junctions 15, 16 symmetrically connected over resistors R 1 , R 4  to output point 17 earthed over resistor R 6 , and also symmetrically connected thereto over similarly poled diodes D 5 , D 6 , series resistors R 2 , R 3  and common resistor R 5 . A mathematical analysis is given showing that resistors R 1 ; R 2 ; R 3 ; R 4 ; R 5 ; R 6  must be proportioned in the ratios 1; 0À31; 0À31; 1; 0À41; 0À10. In a modification (Fig. 5, not shown) resistors R 2 , R 3  are connected to terminals X, - X; Y, - Y respectively over similarly poled diodes D5<SP>1</SP>; D5<SP>11</SP>; D6<SP>1</SP>; D6<SP>11</SP>.
Patent GB-934497-A (GB)
Title: A protecting apron for the top of a blast furnace shaft wall
IPC: C21B7/18
Filed: 1959-12-14
Abstract: 934,497. Blast furnace charging devices. YAWATA IRON & STEEL CO. Dec. 14, 1959 [Dec. 18, 1958], No. 42497/59. Class 51 (2). A combined charge distributer and protective shield for a blast furnace wall comprises a series of aprons 6 each pivotally mounted in a bracket 9 on the furnace wall 17 and adjusted by a rod 8 having a spherical head 4 engaging a recess 5 in the apron. The rod 8 engages a cylinder 13 through a spring 7 said cylinder being disposed in an outer cylinder 11 attached to the wall 17 and being moved by a screwed cap 12. A gland 10 prevents leakage of gas through the wall. In a modification, Fig. 5 (not shown), the front face of the apron is formed with recesses receiving furnace charge material which cushions the apron against the impact of further charge material.
Patent GB-1487593-A (GB)
Title: Portable guide jig for supporting a portable electric drill
IPC: B23B45/14
Filed: 1974-10-01
Abstract: 1487593 Drill supports; jigs W J HARWOOD 1 Oct 1974 42575/74 Headings B3B and B3C A jig for supporting a portable electric drill at an adjustable predetermined angle relative to a workpiece surface comprises two nested, rectangular, trough-shaped support members 61 and 79 the inner of which 79 is pivoted at one end to the outer 61 by fasteners 64 and is lockable in an adjusted position by'means such as a bolt and wing nut on the inner member slidable in an arcuate slot in the outer member. The drill 68 is mounted on the floor 66 of inner member 79, for sliding longitudinal movement by which it may be advanced, by means of a track which may be continuous or as shown provided by a series of bolts 73 and which is engaged by inturned flanges 72 of a guide member 70 carrying one or two V-shaped cradling blocks 74, a strap 69 and one or two optional support screws 76 for the drill. The two members 61, 79 may be expandable laterally to accommodate drill housings of different sizes by each being formed in two sections with overlapping floors held together by fasteners engaging in aligned slots (not shown). Ends 81 of side wall extensions 63, which are slotted so as to serve as a handle, may be flanged to provide an end abutment for engaging the workpiece surface. The drill may be reversed on its supporting floor by removing the guide member 70 from the track. Blocks 101 under the floor 62a of the outer member 61 allow the inner member 79 to pivot to an angle of 90 degrees. Workpiece-holding accessories (not shown) may be permanently fixed to or detachable from the member 61.
Patent GB-920550-A (GB)
Title: Supporting mechanism for surgical operating lights
Inventor: LAUTERBACH NORMAN EDWARD
IPC: F16F15/28
Filed: 1960-12-12
Abstract: 920,550. Supporting surgical lamps. RITTER CO. Inc. Dec. 12, 1960, No. 42711/60. Classes 75 (3) and 75 (4). [Also in Group XXXVI] A surgical operating light is pivotally mounted on a partial yoke attached to one end of a horizontally extending supporting arm which is pivoted to a downwardly depending supporting member rotatably secured to a carriage movable on an elongated track, means being provided for counterbalancing the weight of the light so that it will remain in adjusted position. In the form shown, the lamp 14, Fig. 5, is pivoted at 128 on the half yoke 13, a cable 136 connecting the pivot 128 to a pulley 134 passing through the interior of the yoke 13. The pulley 134 is driven by a shaft 132, Fig. 3, extending from a cavity 120 at the opposite end of the supporting arm 108, the shaft 132 being driven by bevel gears 142, 144 operated by a knob 148. The electric supply to the light also passes through the yoke 13. The arm 108 is pivoted at 104 on a vertical arm 63, a counterbalancing mechanism comprising a rod 152 pivoted to the arm 63 at 102 and carrying at the opposite end a collar 156 and a pair of arms 158 pivoted to the arm 108 at 160 and terminating in a spring cap 162 between which and the collar 156 is arranged a coil spring 164. The pivots 102, 160 are connected by a link 166. The arm 63 is fastened to a carriage 24, Fig. 7, comprising a U-shaped member 28 having turned-up edges supporting axles on which are three pairs of rollers 32 running in fixed channels 26 on the ceiling of the operating theatre. The member 28 also carries axles 38 having rollers 40 moving in channelshaped members 42 and connected together by a member 50 carrying contact members 52 engaging bus-bars connected to a source of electric current. The contact members are connected by wires to a conducting member 60 consisting of a central rod with enlarged rounded ends, surrounded by an insulating sleeve enclosed in a conducting tube with contact members, the whole being surrounded by a further insulating sleeve. The member 60 engages in a member 62, Fig. 10, comprising an insulating outer casing 78 enclosing a tubular conducting member 80, a second insulating casing 82 extending part way along the member 80 and enclosing an inner conducting member 84 so that when the part 60 is inserted, the rounded end of the central rod engages the member 84 and the contact members on the outer tube engage the member 80, the members 84, 80 being connected by leads 86, 90 through a coupling plug 100, Fig. 3, and switch 118 to the operating light. The light may also be adjusted by a knob 148 on the arm 108.
Patent GB-1071828-A (GB)
Title: Industrial trucks
IPC: B62D51/00
Filed: 1964-10-21
Abstract: 1,071,828. Pallet trucks. EATON YALE & TOWNE Inc. Oct. 21, 1964 [Nov. 7, 1963], No. 42876/64. Heading B8H. A pallet truck comprises an inverted U- shaped frame 10 consisting of a cross plate 17, which is supported in bearings on a steering and traction unit 11, and downwardly-directed legs 18 which are connected by parallel links 13, 14 to a frame 37 secured to the fork arms 12. An hydraulic ram 16 is pivoted between the frame 37 and a bracket 23a on a plate 23 secured between the legs 18. Bell-crank levers 44 provided with rollers 15 are pivoted to the fork arms at 45 and are connected by links 42 to arms 40 which, together with the links 14, are secured to shafts 39 rotatably supported in the frame 37. On extending the ram 16, the shafts 39 are rotated by the links 14 in a clockwise direction thereby, through the links 42, lowering the wheels 15.
Patent GB-1475390-A (GB)
Title: Fm demodulator and control circuitry for a facsimile system
IPC: H04N1/40
Filed: 1974-10-04
Abstract: 1475390 Facsimile transceiver EXXON RESEARCH & ENG CO 4 Oct 1974 [21 Nov 1973] 43123/74 Heading H4F A facsimile system includes a receiver for use over a telephone link comprises means for avoiding false start up upon reception of clicks on the line and for preventing the temporary loss of signal from interrupting the scanning drive motor. In the receive mode the device receives F.M. signals and produces a trigger pulse train, waveform A, Fig. 3a, corresponding to zero cross-overs in the F.M. signal. The trigger pulses set a single shot multivibrator having a fixed set period. The relevant grey level is determined by the average D.C. output of the multivibrator in its cycle which comprises the fixed set and varying unset periods thereof. In practice a 1500 Hz signal represents white and 2400 Hz, black. Waveform C depicts the average D.C. output corresponding to pulse train B, t 1 <t<t 2  and t 3 <t<t 4  are grey levels and t 2 <t<t 3  is white. The D.C. signal is now shifted, D, so that the white F.M. signal gives zero D.C. output and low frequency noise occurs as D.C. output of negative polarity which will bias AND gate means in a scan control unit. The processed D.C. signal is now applied to the scan control circuit Fig. 4 (not shown) which comprises the AND gate (170), this enables scanning upon reception of a predetermined signal comprising a first AND input signal above 1400 Hz for half a second and a second AND input signal above 2200 Hz for 12 to 15 milliseconds. The AND circuit also includes a feed back path (190, 192) for continuing generation of the second input, after initial enabling of the gate, even when the signal falls below 2200 Hz, and storage means (158, 194) for continuing generation of the first signal for up to 4 seconds even when the signal falls below 1400 Hz as when the line is lost. In the preferred embodiment Fig. 1 the receiver comprises a rotating drum and axially movable stylus, and receives the F.M. signal via a telephone link from a transistor wherein the original is also mounted on a revolving drum. Light from the original is incident on a photodetector the output of which is frequency modulated, Fig. 2 (not shown), on to a carrier for transmission,
Patent GB-1168623-A (GB)
Title: Improvements relating to Cranes.
Inventor: MORRISON ROBERT
IPC: B66C23/60
Filed: 1965-10-13
Abstract: 1,168,623. Ship's derricks. SPEEDCRANES Ltd. 12 Jan., 1967 [13 Oct., 1965], No. 43460/65. Heading B8B. The boom 1 of a ship's derrick is luffed by a rope 4 which is also used for raising the load. A block 8 is attached to a king-post 2 by pendants P1, P2. Alternatively a continuous pendant or several pendants may be provided.