baber/WOPTO huggingface dataset:
Patent GB-1051848-A (GB)
IPC: H04N5/782
Abstract: 1,051,848. Automatic speed control. RANK-BUSH MURPHY Ltd. Nov. 13, 1964 [Nov.13, 1963], No.44802/63. Heading G3R. [Also in Division H3] In apparatus for reproducing television signals transversely recorded on magnetic tape by heads mounted on a revolvable member 4 the speed of the member is controlled by adjustment of the frequency of an oscillator 20 driving its motor 8 in response to (i) phase comparison of the reproduced frame synchronising signals with those generated in the television station 24 and (ii) phase comparison of head speed signals from pattern wheel 12 and photocell 11 with a multiple of station frame signals, a switch 19 being changed from the system (i) to (ii) to give fine control once frame synchronism is established. The tape capstan motor 27 may also be controlled by comparison of signals from a control track with those from the photocell 11. In an alternative arrangement Fig. 4, (not shown), the variable frequency oscillator 20 is preceded by a further oscillator 36 and an integrator 35; the output of 36 is compared with the photocell signals and the result controls drive oscillator 20. The oscillator 36 is first switched to frame comparison circuits 17 and, when synchronism is detected by coincidence circuits 41, it is switched to a comparator 32 to lock it in phase with the station signals 24. The tape capstan is controlled as before, but in addition a manual phase shifter 38 is incorporated to enable a given head to be selected; this is interlinked with the change over switches 19, 42. For comparison of frame signals the station signals are arranged to produce a stepped saw-tooth waveform in a transistor circuit 34, which is described (see Division H3); also described are circuits 31 and 33 for producing pulses related to the frame sync. signals.
Patent GB-1052356-A (GB)
IPC: B66F9/075
Abstract: 1,052,356. Controllers; control of D.C. motors. CLARK EQUIPMENT CO. June 1, 1965 [June 1, 1964], No. 23326/65. Headings H2B and H2J. [Also in Division B7] A vehicle 10 (Fig. 1, not shown), has a motorspeed control or master accelerating switch 146 with an operating plunger 148 which is spring- biased outwards towards speed increase, the plunger 148 being allowed to move outwards by an accelerator comprising a hand lever 24 and associated mechanism (Fig. 3, not shown), and being pushed inwards to overridingly close down by release of a brake pedal 26 which brakes the vehicle (Fig. 1, not shown), actuation by the brake being independent of that by the accelerator so that braking does not affect the position of the accelerator, whereby the bias of the motor-speed control can effect automatic re-acceleration of the vehicle when the brake is subsequently released. The accelerator 24 actuates plunger 148 via mechanism 168 and a pin 182, with either forward or reverse drive, while the brake pedal 26 actuates plunger 148 via a rod 208, bell-crank 202 and arm 204. The control 146 includes switches 110, 128, 134 and 140 (Fig. 2, not shown), which are actuated in a particular sequence by movement of plunger 148 from its innermost position. With switch 140 closed, closing of switch 110 energizes relay coil 122 or 124, depending upon the position of switch 114, to actuate forward switch 82 or reverse switch 76 so that current flows through field windings 46, 48, of the drive motor to provide forward or reverse operation of the motor. Closing of switch 128, and opening of switch 140, energizes relay coil 130 to close switch 54 and place resistances 56 and 52 in parallel, thus halving the total resistance between conductor 34 and motor armature 40 to increase the drive motor speed. Then closing of switch 134 energizes relay coil 136 to close switch 58 to by-pass resistances 56, 52, and further increase the motor speed. Finally, switch 140 recloses to energize relay coils 143, 144, and actuate switches 90, 100 to re-connect the field windings in parallel. Application of the brake opens a switch 42 in the power circuit. There is also a keyoperated switch 22 in the power circuit.
Patent GB-1095593-A (GB)
IPC: H02K33/04
Abstract: 1,095,593. Reciprocating pumps; raising liquids. INTERNATIONAL STANDARD ELECTRIC CORPORATION. June 18, 1965 [June 19, 1964], No. 25869/65. Headings F1A and F1R. In an electromagnetically actuated pump liquid is caused to flow from the inlet 3 to the outlet 20 by means of a plunger comprising a perforated plate 9 and an elastic disc 10. The plunger is moved against the bias of spring 10 by the core of the electromagnet 5 which is sealed from the flowing liquid by the bellows 13. Air is circulated through longitudinal ducts in the electromagnet and bores 18, 19 in the pump housing 1b by movement of the electromagnet core. The pump may be installed in a central heating system.
Patent GB-1225108-A (GB)
IPC: F16D33/00
Filed: 1969-09-22
Abstract: 1,225,108. Hydrodynamic couplings. EATON YALE & TOWNE Inc. 22 Sept., 1969 [20 Sept., 1968], No. 46630/69. Headings F2C, F2D, F2E and F2L. A hydrodynamic coupling or brake for use with a gas turbine engine comprises axially spaced impeller and turbine elements 66, 46 having an annular discharge gap 73 therebetween which discharges into a low pressure zone. Hydrodynamic coupling.-In Fig. 6 bladed impeller and turbine elements 66c, 46c form a working circuit 67c therebetween and have an annular discharge gap 73c which discharges into a fixed casing 33c. The liquid in the casing 33c returns to a reservoir 76c through a port 44c having a greater cross-sectional area than the area of the annular discharge gap 73c. A pump 77c draws liquid from the reservoir 76c and delivers the liquid through a cooler 78c and control valve 79c to the working circuit 67c. The degree of coupling may be controlled by the valve 79c or may be controlled by a lever 126 which acts through a screw to move the turbine shaft axially and thus vary the size of the discharge gap 73c. Hydrodynamic brake.-In Fig. 2 (not shown) and Fig. 3 bladed rotor and stator elements 66A, 46A form a working circuit 67A, having a discharge gap 73A which in Fig. 2 discharges into a fixed casing (33) whilst in Fig. 3 the gap 73A discharges into an annular low pressure chamber 86 fast with the stator element 46A. In Fig. 3 liquid from the low pressure chamber 86 is returned to the working circuit through a port (96), a check valve 101, cooler 99 and control valve 79A. Leakage liquid is returned from the casing 33A to a reservoir 76A. The cross-sectional area of the discharge port 96 is greater than the area of the annular discharge gap 73A to ensure that the chamber 86 remains at a low pressure. The degree of braking is controlled by the valve 79A which regulates the supply of liquid to the working circuit.
Patent GB-1227098-A (GB)
IPC: B22D17/24
Filed: 1969-09-25
Abstract: 1,227,098. Cores. KARL SCHMIDT G.m.b.H. 25 Sept., 1969 [28 Sept., 1968], No. 47296/69. Addition to 1,118,195. Heading B3F. A core for an internal combustion engine piston comprises at least one substantially toroidal core part c spaced from a core body x, the core part c having been press-moulded from sand or a salt; one or more threaded nipples m embedded in the core part c; a first metal tube a positioned over the projecting part of each threaded nipple m and having a straight end portion located in a second tube i embedded in the core body x; a wire n extending through the tube a and being attached to the nipple m by a coupling member o and projecting from means k for holding the tube a in position; an adjustable ring p; and a spring-loaded tongs located between the ring p and means k. When the piston has been cast the threaded nipples m can be extracted from the core part c by means of the wires n.
Patent GB-1228822-A (GB)
IPC: B65G63/06
Filed: 1968-07-03
Abstract: 1,228,822. Discharging wood chips from a ship. MITSUI SHIPBUILDING & ENG. CO. Ltd. 3 July, 1968 [19 Oct., 1967], No. 31738/68. Heading B8E. Woodchips in the hold of a ship 50 are grabbed by grab 4 which is elevated and then carried by truck 3 running along beam 2 movably mounted on derrick 1 to be discharged on to the endless belt conveyers 5 which conveyers discharge on to discharge conveyer 8 (not shown) for removal of the chips from the ship. The derrick 1 is mounted longitudinally of the ship as shown; and conveyers 5 are mounted transverse thereto and are provided with shields 6 to prevent the material falling from the grab in between the conveyers.
Patent GB-1230208-A (GB)
IPC: B29B17/00
Filed: 1968-11-20
Abstract: 1,230,208. Polypropylene powders. COATHYLENE S.A. 20 Nov., 1968 [21 Nov., 1967], No. 55033/68. Heading C3P. Polypropylene powders are prepared by (a) dissolving polypropylene in a solvent liquid at elevated temperature, (b) cooling the solution so that the polypropylene precipitates under quiescent conditions, (c) separating and drying the precipitated polypropylene and (d) subjecting it to mechanical comminution. The solvent liquid may be a halogenated hydrocarbon, optionally in admixture with a non- solvent, e.g. an alcohol or glycol half ether; and the particle size of the final product may be predetermined by appropriate selection of solvent and non-solvent nature and proportions. In examples polypropylene is dissolved in (1) perchlorethylene and 2-methoxyethanol, (2) chlorobenzene and 2-propoxyethanol, (3) perchlorethylene and 2-propoxyethanol, and (4) perchlorethylene; and reprecipitated, separated, dried and comminuted in a mixer or disc mill. The products may be screened and larger particles subjected to further grinding.
Patent GB-1238158-A (GB)
IPC: C07D327/06
Filed: 1970-03-18
Abstract: 1,238,158. 3-Carbamoyl-2,1-benzoxathian- 1,1-dioxide. ARZNEIMITTELWERK DRESDEN VEB. 18 March, 1970, No. 13068/70. Heading C2C. Novel compounds of the formula wherein R 1  and R 2  denote the same or different C 1-5  alkyl groups, and R 3  is H or a C 1-5  alkyl group, are obtained by reacting a compound of the formula wherein R 4  is a -CN or -CONH 2  group, with concentrated sulphuric acid, preferably at ambient temperature. The products, in treatment of animals, show anti-convulsive properties against cramps induced by strychnine or cardiazole.
Patent GB-1250156-A (GB)
IPC: G01G23/36
Filed: 1967-11-18
Abstract: 1,250,156. Control of A.C. motors. EXPRESS DAIRY CO. (LONDON) Ltd. 22 Nov., 1968 [18 Nov., 1967], No. 52552/67. Heading H2J. [Also in Division G1] A self taring weighing and filling apparatus comprises a weighing device having a pointer 3 which is movable relative to an indicating scale 4 and which is connected to a substantially circular opaque dial 7 having areas which are able to transmit light to photosensitive cells. In order to fill containers having different tare weights with substantially identical weights of material, the containers are passed in succession over a weighing platform of the apparatus. With an empty container on the platform any movement of the pointer 3, which occurs if the tare weight of the container is different from that of the previous one, causes one oftwophotosensitive cells PC1 or PC2 to be activated by light passing from one of two sources 18 through an arcuate slot 2 of just under 180 degrees extent in the opaque dial 7. Such activation causes a reversible motor (ZM) (Fig. 6 II, not shown) to drive the pointer 3 until the pointer 3 indicates zero on the scale 4, the opaque dial 7 then being in a position to obliterate light from the sources 18 to both photosensitive cells PC1 and PC2. Main and trickle feed of material to the container is then initiated automatically by an electrical control circuit comprising the photosensitive cells PC1 and PC2, relays, transistors, switches and further photosensitive cells PC3, PC5 which are associated with the main feed and PC4, PC6 which are associated with the trickle feed. When a predetermined weight of material is in the container, the main feed is terminated and trickle feed is continued to bring the weight of material up to the required amount, at which time such trickle feed is also terminated. With the required amount in the container, the container is moved off the weighing platform by a conveyer which supplies the next empty container to the platform and the filling procedure is repeated. Tracks (8 and 9) (Fig. 4, not shown) in the dial 7 co-operate with the cells PC3, PC5 and PC4, PC6 to suitably control main and trickle feed gates. The dial 7 may be of fibreglass and painted black and the apparatus may be used for filling moulds.
Patent GB-1250387-A (GB)
IPC: F16K31/126
Filed: 1969-11-19
Abstract: 1,250,387. Valves. M. R. BURGER, and D. S. DELANY. 19 Nov., 1969 [20 Nov., 1968; 5 May, 1969], No. 56597/69. Heading F2V. A fluid flow control valve comprising a valve housing with aligned inlet port, outlet port, valve member 321 and seat 141, a bellows appliance with a bellows 201 deformable in the direction of alignment and the interior of which is closed off in relation to the controlled fluid is characterized by a guide arrangement by which the valve member 321 is guided in the direction of alignment. The bellows carries a pot 58 secured to a connecting rod 301 of the valve member so that on increasing the internal pressure in the bellows the valve member is lifted off its seat. A shaped part 121 is reversible through 180 degrees (Fig. 2, not shown). The bellows may be pressurized by fluid from an hydraulic press (36) (Fig. 3, not shown). An additional bellows (203) (Fig. 4, not shown) may be introduced into the valve housing, its interior communicating to atmosphere and its diameter corresponding to the diameter of the valve member (323). In this way the first bellows (202) only has to overcome the force of a spring (67) in order to open the valve, since the inlet fluid pressure does not act on the valve member. In another embodiment (Figs. 5 and 6, not shown), the valve is opened by rotation of a screw spindle (73). The interior of the bellows (204) communicates to the atmosphere via ports 70 and 75.
Patent GB-1256694-A (GB)
IPC: G05D23/22
Filed: 1968-03-18
Abstract: 1,256,694. Calculating; breakpoint functional generators. PILKINGTON BROS. Ltd., and F. W. WILBURN. 7 March, 1969 [18 March, 1968], No. 13026/68. Heading G4G. [Also in Division G3] An amplifier adapted to provide a non-linear output to compensate say for a non-linear input from a thermocouple 35 comprises a series of feedback resistors 99 switched successively through diodes 98 at output voltages determined by the setting of potentiometers 95, 97. The amplifier output follows a series of straight lines of decreasing slope appropriate to the characteristic of the thermocouple.
Patent GB-1256885-A (GB)
IPC: H03K3/57
Filed: 1968-04-23
Abstract: 1,256,885. Pulse generating circuits. WIPAC DEVELOPMENT Ltd. 14 Feb., 1969 [23 April, 1968], No. 19205/68. Heading H3T. [Also in Division F1] A gas burner igniter has a spark gap 49 connected to a pulse generator comprising an output transformer 25 having its primary winding connected in series with a silicon controlled rectifier 30 across a capacitor 23, there being no triggering source connected to the gate of the controlled rectifier. The capacitor 23 charges until the avalanche breakdown voltage of the S.C.R. is reached, when the capacitor discharges into the primary winding. The S.C.R. is protected against reverse high voltage by diode 50. The charging circuit for the capacitor comprises a diode 22 and a mains-fed transformer network or a D.C. powered transformer-coupled inverter oscillator.
Patent GB-1257321-A (GB)
IPC: E06B7/23
Filed: 1968-03-27
Abstract: 1,257,321. Weather excluders for doors and sashes. D. A. DUNN. 30 May, 1969 [27 March, 1968], No. 14836/68. Heading E1J. According to one aspect of the invention a sealing means for securing to the bottom underneath edge of a door for cooperation with the threshold bar disclosed in Specifications 906,108 and 940,788, comprises an elongated strip 1 of rubber/plastics provided on its back surface with grooves 16 for mastic or adhesive to secure it to the door &c 4 as well as by screws &c 20 passing through a rigid metal or plastics strip 19, the strip 1 being provided integrally with sealing strips 17, 14a adapted to sealingly contact the reentrant flange 3 and upright flange 2 of the threshold bar 1, 2, 3. According to a second aspect of the invention, as shown in Fig. 6 the threshold bar 1, 2, 3 of metal is provided with sealing strips 28, 25 secured respectively along the longitudinal edges of the reentrant flange 3 and upright flange 2 by means of T-shaped ribs 29, 24 received in corresponding undercut grooves 30, 23. When the threshold bar extruded or moulded e.g. in plastics, the strips 28 and 25 may be produced in the extrusion process integral with the bar and may be of more resilient material than the plastics or metal of the bar.
Patent GB-1259386-A (GB)
IPC: A41B3/10
Filed: 1969-07-30
Abstract: 1,259,386. Collar interlining. G. DONATH. 30 July, 1970 [30 July, 1969], No. 38334/ 69. Heading A3V.  A collar interlining includes a piece of material ABGHIJ cut on the straight, covering the whole of the area of the turn-down outside collar apart from the narrow strip 16, and having an extension portion 18, defined by CGHI, covering each end portion of the neckband. A diverging gap 22 is defined by the adjoining edges of the main portion 15 and each extension portion 18, causing progressive increase in the radius of curvature of the collar fold. A patch KBL including a stiffener 10 may be joined to each end of the main portion 15 to provide stiffening, and a piece of material ABCDEF, cut on the bias, may cover the whole area of the collar, underlying the layer of facing material on the outside surface. The material used may be either cotton or polyester/cotton.
Patent GB-1289581-A (GB)
IPC: G04C13/11
Filed: 1970-01-20
Abstract: 1289581 Clocks BUNKER-RAMO CORP 20 Jan 1970 2681/70 Heading G3T [Also in Division H2] A slave clock 10 for mounting on a car dashboard has a stepping motor 18 driven by D.C. pulses from a remote timing unit. The motor 18 has a plane ferromagnetic rotor 62 with poles 120 while the stator has a series of poles 72 fluxed by a permanent magnet 76 and a second series of poles 70 fluxed by a field coil (104), Fig. 5 (not shown). The two series of poles are so arranged that a pulse through the coil (104) causes the rotor poles 120 to move clockwise into alignment with the poles 70; thereafter the poles 120 are pulled into alignment with the poles 72. The rotor steps are transmitted via a pinion 126 and reducing gears 140, 142 to a minute shaft 54 and thence to an hour shaft 56. Clock hands 50, 52 are set by a pinion 168 which engages the gear train 140 via an idler gear 172 when knob 166 is pulled, the setting being in steps due to the magnetic pull of the motor poles. The dial 14 may be made rotatable through a small range, Figs. 6, 7 (not shown) to allow precise indication of the time at the instant of the pulse. In an alternative embodiment, the hand setting is made by a push-in shaft (200), Fig. 8 (not shown) which engages a slot (210) in the end of the minute shaft (54b).
Patent GB-1289854-A (GB)
IPC: G01B11/06
Filed: 1969-11-07
Abstract: 1289854 Measuring shaft seals GOETZEWERKE FRIEDRICH GOETZE AG 7 Nov 1969 [8 Nov 1968] 54727/69 Heading G1M A shaft sealing ring 14 is dimensionally tested by placing it on a stop ring 3 as shown so as to operate a switch 17 and a light 12. An opaque test plug 4 carrying photo-cells 15, 16 is then lowered into the bore of the ring and positioned by a micrometer 5 so that deep radial grooves or light channels 7, 8 filled with transparent plastics material are positioned with their bottoms in the near vicinity of the ring sealing edge 13. The axial depths of the channels 7, 8 differ by a distance equal to l 1 -l 2  which is equal to the manufacturing tolerance range for the seal ring dimension a. Light from the source 12 is then reflected by mirrors 10, 11 thro' the bottom portions of 7 and 8 so that if the dimension a is too small then the edge 13 is positioned below the bottoms of both channels 7, 8 and prevents light from energizing either 15 or 16. If a is too great however then both 15 and 16 respond, but if the edge 13 is inside the permissible tolerance range then it lies below the base of channel 8 and above the base of channel 7 as shown so that only 15 is energized.
Patent GB-1290201-A (GB)
IPC: E21B21/14
Filed: 1970-08-24
Abstract: 1290201 Foam generating apparatus CHEVRON RESEARCH CO 24 Aug 1970 [25 Aug 1969] 40720/70 Heading B1C [Also in Division El] Foam generating apparatus comprises a tubular body 16 having an end 83 connectable to a gas source, a tube 85 through which a foamable liquid is supplied to the interior of the body to be mixed with the gas, and a plurality of rings 87 downstream of the mixing zone 17 which cause foam to be formed, the foam issuing through outlet 84. The rings, which may be cylindrical bands having indented portions, see Figs. 3, 4 (not shown), may be located between screens 90, 91 of wire mesh. The foam-forming liquid may be an aqueous surfactant solution and the gas used may be air, nitrogen, natural gas, or carbon dioxide. The foam may be used as a well circulation fluid.
Patent GB-1297620-A (GB)
IPC: B22D33/00
Filed: 1970-08-06
Abstract: 1297620 Foundry moulding machines DANSK INDUSTRI SYNDIKAT AS 6 Aug 1970 [28 Aug 1969] 38080/70 Heading B3F [Also in Divisions B5 and B8] In a moulding machine which forms a series of identical mould parts 6 one at a time in a moulding chamber 2 between opposed pattern boards, one of which 3 serves to advance the formed moulds on to a guideway 5 where the mould parts are assembled by pressing together and along which they are intermittently advanced, means are provided to aid the travel of the mould parts along the guideway. The means comprise two rails 9 spaced one each side of the guideway 5 and reciprocable by a piston and cylinder 18, 19 at the same speed as, and in synchronization with, the pattern board 3. The rails 9 run on rollers 10 and are linked by yokes 11 so as to be reciprocable towards and away from each other in order to engage the sides of the mould parts 6 only during the forward reciprocation stroke. In operation, the advancing force of the rails is so adjusted that it would be just inadequate to advance the moulds on the guideway without the force of the pattern board 3.
Patent GB-1307401-A (GB)
Title: Austenitic heat resisting stainless steel
IPC: C22C38/00
Filed: 1970-03-18
Abstract: 1307401 Iron-chromlum-nickel alloys NIPPON KOKAN K K 18 March 1970 13154/70 Heading C7A Austenitic heat-resisting alloys have compositions in the following range: - Cr 15À0 - 26À0% by weight Ni 7À0 - 22À0% by weight C 0À03 - 0À30% by weight Mo 0À2 - 4À0% by weight N 0À04 - 0À15% by weight Ti and Nb in such amounts that the atomic Fe and incidental impurities the balance. Ti may be wholly or partly replaced on equal atomic proportion of Zr and Nb may include a small amount of Ta, Si, Mn or Al may be present for deoxidizing the alloy.