baber/WOPTO huggingface dataset:
Patent GB-1078420-A (GB)
Title: Novel intermediates useful in the preparation of colchicines,and processes for the preparation thereof
IPC: C07C255/45
Filed: 1964-12-04
Abstract: The invention comprises the compounds of formulae <FORM:1078420/C2/1> <FORM:1078420/C2/2> <FORM:1078420/C2/3> <FORM:1078420/C2/4> wherein X1, X2 and X3 ar alkoxy and R is alkyl (optionally aryl-substituted). Compound V, made by condensation of the corresponding aldehyde and cyanoacetic ester, is hydrogenated to IV, which is hydrolysed to III, which in turn is decarboxylated to II.  In specified compounds, X1 = X2 = X3 = MeO and R = Me.
Patent GB-1241833-A (GB)
Title: Photographic emulsions and sensitizing dyes therefor
Inventor: BROOKER LESLIE GEORGE SCOTT
IPC: C09B23/10
Filed: 1968-09-05
Abstract: 1,241,833. 1 - Phenyl - 4 - (1 - phenylethylidene) - 2 - pyrazolin - 5 - one. EASTMAN KODAK CO. 5 Sept., 1968 [8 Sept., 1967], No. 42331/68. Heading C2C. [Also in Divisions C4 and G2] 1 - Phenyl - 4 - (1 - phenylethylidene) - 2 - pyrazolin-5-one is prepared by reacting 1- phenyl-2-pyrazolin-5-one with acetophenone.
Patent GB-984740-A (GB)
Title: Improvements relating to seals for high pressure pipes or tubes
Inventor: CROSSLEY HENRY MORTON
IPC: F16L17/067
Filed: 1961-11-28
Abstract: 984,740. Joint-making packing; pipe joints. HENRY CROSSLEY (PACKINGS) Ltd. Sept. 25, 1962 [Nov. 28, 1961], No. 42446/61. Headings F2B and F2G. A seal of substantially cylindrical section for a high pressure pipe or tube joint comprises a hard steel ring A segmented at an angle into three or more parts and having an approximately triangular section with a radial projecting part extending outwards from the apex of the triangular section, and pads D<SP>1</SP>, D<SP>2</SP> of rubber-like or plastic material which bear upon the tapered sides of the ring A and extend to the sides of the seal making contact with small segmented rings B<SP>1</SP>, B<SP>2</SP> resting on the ends of the tapered sides of the ring A adjacent its cylindrical bore, continuous or segmental rings C<SP>1</SP> to C<SP>4</SP> being provided on the external periphery of the seal around the pads D<SP>1</SP>, D<SP>2</SP> and all the rings being bonded to the pads by the application of heat. The rings B and C prevent extrusion of the pads at high pressures and may be made of zinc or copper alloys, soft iron, steel or titanium. The material for the pads may be natural or synthetic rubber or P.T.F.E. which may contain fillers and may be covered by a metallic cloth or a textile cloth which may be reinforced by metal wire. An air gap E is provided around the seal which is inserted in a recess in one of the pipes or tubes.
Patent GB-960489-A (GB)
Title: Inking systems for rotary printing machines
IPC: B41F31/00
Filed: 1961-11-28
Abstract: 960,489. Printing machines; inking systems. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Nov. 28, 1961 [Nov. 30, 1960], No. 42525/61. Heading B6C. In a rotary printing machine the inking system includes an inking drum, means for applying ink to the drum, two transfer rollers positioned around said drum in rolling contact therewith and two forme rollers arranged to receive ink from said transfer rollers respectively and positioned for rolling contact with the plate cylinder, said system further including means, operative during drum rotation, for periodically interrupting, and subsequently restoring, contact between the transfer roller which is nearer the ink application means in the direction of drum rotation and said drum to allow more ink to be carried to the other transfer roller for supply to the associated forme roller. The system shown comprises doctor, vibrator, intermediate and feed rollers 1, 2, 3, 4, 5, ink distributing drum 6, transfer rollers 7, 8, distributer rollers 9, 10 and forme rollers 11, 12, 13 and 14. In order to ensure an even distribution of ink from the drum 6 to the forme-rollers 11 . . . 14 the transfer roller 7 is automatically lifted from the drum, through the actuation of cam plate means associated therewith, during alternate half revolutions of the drum, thus allowing the transfer roller 8 to accumulate an amount of ink equal to that collected by the roller 7. The roller 8 receives this ink over two consecutive stages adding up to one-half revolution of the drum 6. By appropriate control the interruption of contact between the roller 7 or 8 and the drum 6 may be effected at any desired intervals, so that the ink application may be adapted to the printing plates being treated.
Patent GB-921268-A (GB)
Title: Improvements in or relating to programming devices
IPC: H03K3/59
Filed: 1960-12-09
Abstract: 921,268. Dynamo-electric machines. SIEMENS-SCHUCKERTWERKE A. G. Dec. 9, 1960 [Dec. 9, 1959 ; Sept. 30, 1960], No. 42542/60. Class 35. [Also in Groups XXXVI and XXXVIII] A device for producing currents and voltages suitable for programming and controlling a machine for shaping materials, comprises a moving member carrying a plurality of permanent magnets arranged to influence successively the output of a Hall generator. Figs. 2 and 3 show a series of magnets 2 inserted in a disc 1 which rotates so that the magnets pass between two polepieces 9, 10 to provide the magnetic field for Hall-plate 13. The magnets are placed at varying radial distances on the disc and poled so as to provide an output waveform as shown in Fig. 1 which comprises a constant positive portion which changes over to a constant negative portion for 180 degrees rotation of the disc. Other waveforms may be provided and the size or strength of the magnets may be varied instead of their position, to provide the required waveform ; alternatively magnetic shunts may be provided. A plurality of Hall generators may be used to provide phasedisplaced or parallel uni-phase outputs. The magnets may alternatively be placed in the rim of the disc. In a further embodiment (Fig. 5) the magnets are arranged on a sliding member, the magnets passing the end of an L-shaped ferrite bridge 23 which directs the field on to Hall-plate 13. The bridge, Hall-plate and electrodes may be encased in ceramic and synthetic resin. The Hall-plate may consist of indium antimonide or indium arsenide.
Patent GB-920152-A (GB)
Title: Electrical displacement detector
IPC: G05B19/21
Filed: 1961-11-29
Abstract: 920,152. Electric selective signalling systems. HUGHES AIRCRAFT CO. Nov. 29, 1961 [Jan. 3, 1961], No. 42754/61. Class 40 (1). A displacement measuring system of the type in which two phase-displaced heads HMX1, HMX2, Fig. 1, sense uniformly - spaced indicia 5 on a rotatable disc 4 is characterized in that an additional head HMXL is provided which senses a reference indicia 6 to thereby produce a signal when the disc passes through its " zero " position. The arrangement forms part of a machine-tool control system in which first a desired position of a tool carrier 1, moved by a nut on the shaft driving the disc 4, is entered into a counter 13, Fig. 3, then the tool carrier 1 is withdrawn to its fully retracted position and then a motor is started to advance the tool carrier. As the tool carrier advances it opens a limit switch, TS, Figs. 1 and 3, and the first " zero " pulse produced by the head HMXL after this passes via a gate 11 to set a bistable circuit FQL which opens a further gate 12 thereby allowing pulses from the heads HMX1 and HMX2 to pass to step down the counter 13 which forms part of the motor control circuit (no details given). The circuits between the heads HMX1, HMX2 comprise conventional transistor amplifiers, inverters and differentiators PM1, PM2 (Fig. 4, not shown) and a conventional diode gating circuit CG (Fig. 5, not shown) for producing pulses on forwards Pp or backwards Np leads. Details are also given of the bi-stable circuit FQL (Fig. 8, not shown) and it is stated that a similar circuit could also be used for the counter. As shown, all three sensing heads are photo-electric, but magnetic heads and mechanical contacts are mentioned as obvious alternatives. Specification 848,508 is referred to.
Patent GB-1098268-A (GB)
Title: Improvements relating to electro-chemical marking arrangements
IPC: C25F3/16
Filed: 1965-10-08
Abstract: In an electro-chemical marking arrangement which comprises a marking device adapted to retain an electrolyte in electrical contact with the <PICT:1098268/C6-C7/1> device and with selected areas of a metal workpiece, and an electronically-controlled current supply whose output is connected to the device and to the workpiece, the current supply incorporates a current limiting device.  The current limiting device may comprise semi-conductor devices. The current supply circuit shown comprises a bridge rectifier, D1-4, a silicon controlled rectifier, SCR1, controlling the current through the rectifier, a pulse generating network comprising a unijunction transistor UJ1, capacitor C1, transistor Q2 and resistances R1 and R2, operating at the frequency of the unsmoothed voltage output of the bridge rectifier and connected so that each pulse turns on the silicon controlled rectifier SCR1, a current sensing device connected in the circuit to the bridge rectifier and means for delaying the delivery of each pulse as the current sensed by said device increases, so as to delay turning on of the silicon controlled rectifier to a later point in the positive half-cycle, thereby to limit the current in circuit to the bridge rectifier. The marking device, comprising workpiece W and tool M, receives its current supply from transformer T2 via rectifier bridge MR1, and switch S3, which permits the direction of flow of current applied thereto to be alternated.  The circuit may als fed from the mains input through a transformer (T3) and rectifier (D6) which allows the output to the marking device to be switched on for a set period.
Patent GB-1126877-A (GB)
Title: Mixed gauge track systems
Inventor: MUELLER HERBERT
IPC: E01B7/00
Filed: 1965-10-11
Abstract: 1,126,877. Dual gauge points. GERMANY, MINISTRY OF TRANSPORT. 11 Oct., 1965, No. 43055/65. Heading E1G. In a switch-point for a multi-gauge track, in which the broad gauge wheels run on rails 1, 2 and the narrow gauge wheels are retained on the same rails by guide rails 3, 4, the point blades 5, 8 co-operate with guide rails 7, 10 which move in directions opposite to those of the blades. For straight running the blade 5 moves away from rail 1 and the guide rail 7 moves towards guide rail 3 such that the wheel is restrained to outer rail 1 by guide rail 3, guide rail 7 and the back of point blade 5; the guide rail 10 moving away from rail 2 to allow the opposite wheel to run on rail 2 and point blade 8. By this means the narrow gauge track is displaced from a central to a left-hand lateral position to allow the use of a single conventional frog. Corresponding reversed conditions apply for turn-out. Further guide rails may be provided to return the narrow gauge to central running after the switch-point.
Patent GB-1372780-A (GB)
Title: Method and apparatus for testing for leaks in containers tubes  and the like
IPC: G01M3/32
Filed: 1972-09-14
Abstract: 1372780 Testing containers for leaks C T PEACOCK 14 Sept 1972 43125/72 Heading G1S A container c to be tested is connected to a source of fluid-pressure h , to a second separate source of fluid-pressureg such as coloured liquid or gas, to a smaller leak tight vessel a, and to a small bore transparent tube d provided in parallel with a larger duct f. In operation, both a and c are filled with a first liquid from source h. Valve fl is then closed and source h isolated and a coloured liquid or smoke is injected into the transparent tube d from the second source g. Valve e is then opened and if the coloured liquid is observed to move along the tube d then a leak is indicated.
Patent GB-1270355-A (GB)
Title: Automatic door closers
Inventor: TILLMANN HORST
IPC: E05F3/10
Filed: 1970-09-09
Abstract: 1,270,355. Door closer. DORKEN & MANKEL K.G. 9 Sept., 1970 [30 Sept., 1969], No. 43174/70. Heading E2M. In an automatic door closer having a hydraulic piston and cylinder check 25, 22 with a movable member, e.g. the piston and rod 25, 20, coupled to a closer shaft 13; a closer spring 26 co-axial with the cylinder 22 and having one end bearing against a movable abutment, e.g. the piston 25, coupled to the shaft 13 and the other end against a stationary support 29, the piston rod extends through an end wall 23 of the cylinder, the end wall and piston defining therebetween the working chamber 38 which is situated between the piston and the closer shaft. A sleeve 37, sealingly engaging the shaft 20 and permitted limited axial movement between the end wall 23 and a catch ring 35, acts as a non-return valve so that, during closing movement, the sleeve bears against the wall 23 to seal a passage through the wall. A throttle 39 connects the working chamber 38 with the housing 10. The support 29 threadedly engages a pin 32. A slide and roller 18 on the piston rod 20 engage a cam 14 on the shaft 13. A gudgeon pin 24 connects the piston to the rod. The piston may be fixed and the cylinder coupled to the shaft 13.
Patent GB-1078264-A (GB)
Title: Weatherproof hinge
IPC: F21V17/10
Filed: 1965-10-12
Abstract: 1,078,264. Hinges. SYLVANIA ELECTRIC PRODUCTS Inc. Oct. 12, 1965 [Oct. 12, 1964], No. 43286/65. Heading E2F. [Also in Division F4] A lighting fitting, especially for outdoor use, consists of a base member, e.g. a trough 12 supporting a reflecting surface 14, a light source 16 being arranged at the top edge of the trough and a hinged door 26 having a light-emitting window 27 and being formed at the lower edge with a yoke-shaped part 28 which fits over the ball-shaped lower edge 20 of the trough 12 to form a hinge, the edge 20 having a groove in which is inserted a resilient strip which exerts frictional pressure against the inside of the yoke to hold the door 26 open in any position. The strip may be of rubber, nylon or teflon and serves also to make the hinge weather-tight. The door may be secured in closed position by latches 29.
Patent GB-863356-A (GB)
Title: Improvements in and relating to hydraulic forging presses
IPC: B30B15/16
Filed: 1959-12-21
Abstract: 863,356. Hydraulic presses. SCHLOEMANN A.G. Dec. 21, 1959 [Dec. 27, 1958], No. 43287/59. Addition to 857,485. Class 69 (2). [Also in Group XXII] In an hydraulic forging press controlled by the apparatus of the parent Specification, the hydraulic fluid is supplied by a plurality of pumps 10, 11 all of which are used during rough forging but only a part of which are used during finish forging. During rough forging which may be controlled manually or automatically both pumps 10, 11 supply pressure water through inlet valve 21 to the main press cylinder 7. Water in retraction cylinders 3 is pressed through pipe 26 and adjustably loaded check valve 28 to the outlet side of pump 10. During finish-forging, wherein the stroke is controlled by a phase detector circuit 60 as described in the parent Specification, a by-pass valve 24 is opened by the relay 62 to bypass the output of pump 11 through pipe 31 and shock absorber 30 to the reservoir 14. During retraction both the by-pass valve 24 and the outlet valve 20 are opened and the retraction cylinders 3 are then fed from pump 10 only. The reaction stroke has a speed much greater than that of the forging stroke. Valve 28 is loaded to support the weight of the cross-beam &c. at the end of the retraction stroke the valves 20, 21, 24 are actuated by pistons 35 supplied with pressure oil from pipe 38 under the control of slide valves 36 actuated by electromagnets 37. Switch 65a enables the rough forging to be performed automatically. In another embodiment, Fig. 2 (not shown), separate inlet and outlet valves controlled by electromagnetic and hydraulic means are also used for the retraction cylinders.
Patent GB-1301162-A (GB)
Title: Improvements in or relating to data communication
IPC: H04L1/14
Filed: 1970-09-10
Abstract: 1301162 Digital transmission systems; error checking APPLIED DIGITAL DATA SYSTEMS Inc 10 Sept 1970 [10 Sept 1969] 43398/70 Heading H4P Remote terminals connected to a central data unit are provided with apparatus which stores received information characters which are passed continuously to a receiver or utilization device and in response to a determined bit combinations returns the characters to the unit for error check. The apparatus incorporates a blocking feature so that return is inhibited when the remote terminal, e.g. a teleprinter is transmitting. Information from the central unit or data source 10 is shaped at 30 and passed into shift register 40 of capacity equal to one complete character plus for example start and stop bits, under the control of clock 34, and is transferred in parallel via AND gates 42 to shift register (SR) 56. If the contents of SR56 is an "echo" combination, as ascertained by comparison with the characters stored in 74, 76, a switch 57 is closed and further characters received from source 10 are returned to it for checking in addition to being passed to a receiver, e.g. teleprinter. Operation of terminal 14 reverses flip-flop 43 thus inhibiting gates 42 and activating gates 52 hence signals from 14 are temporarily stored in SR56 and then passed to line under the control of clock 62. Receipt of a "non-echo" combination into SR56 causes switch 57 to open. Preferably the echo "on" and "off" signals transmitted by source 10 are combinations to which device 14 does not respond by printing, also source 10 can transmit a verification character also of the non-printing type to permit the source 10 to verify that the unit has in fact been activated. If terminal 14 commences transmission while a character is being passed out the change over from gates 42 to 52 is delayed until counter 36 has counted out a complete character.
Patent GB-1358860-A (GB)
Title: Variable equalizer for wide band cable transmission systems
IPC: H04B3/14
Filed: 1971-09-17
Abstract: 1358860 Equalizing SOC ITALIANA TELECOMMUNICAZIONI SIEMENS SpA 17 Sept 1971 [15 April 1971] 43481/71 Headings H3U and H4R A variable equalizer for a wide band cable transmission system comprises, between a low output impedance decoupling unit A 1 , and a low input impedance vector summing unit A 2 , a constant, frequency independent attentuator K 0  and a further set K 1  . . . K n  of attenuators each having a pass band centred on one of a set of intermediate frequencies, and each of which, for example K j , 1#j#n has a stepwise or continuously variable attenuation within its passband, as well as facility to invert the phase of its output current I j , the settings and output currents of the set K j  being mutually independent. Construction of each K j .-Each K j , Fig. 2a comprises a passband defining network H j (#) including a decoupling resistor (R) Fig. 3 (not shown) and a shunt impedance (Z j (#)) possibly a capacitor, which, together with the primary inductance of transformer T form a tuned circuit. The secondary of the transformer is connected to the output of K j  via a two gang rotary switch CM j , the lower gang enabling the reversal of the transformer secondary winding, the upper providing, for each polarity sense, a stepwise adjustable potential divider R 1 , resp. R 2 . Alternative embodiments.-In Figs. 2b, 2c, 2d (not shown) the transformer secondary is connected out via a double pole reversing switch and a continuously adjustable potentiometer (P, Fig. 2b) connected via the switch across the secondary winding, or the transformer has a grounded intermediate tap, whose extremities are connected to the ends of a potentiometer (P, Fig. 2d), or a resistor chain coupled to a rotary switch (Fig. 2c). Method of adjustment.-During use of the cable, the equalization is adjusted at the receiving end on the basis of transmitted intermediate frequencies. The system is suitable for use in multiplex systems using coax cables.
Patent GB-1467852-A (GB)
Title: Vibrating device
IPC: B65G27/20
Filed: 1974-10-10
Abstract: 1467852 Vibrators ROBERT BOSCH GmbH 10 Oct 1974 [12 Oct 1973] 43937/74 Heading F2X A vibrating device comprises a first unbalanced weight 3 mounted for rotation on a shaft 1, a second unbalanced weight 9 which can move radially with respect to the shaft 1, and two resilient rubber members 6, 7 connecting the weights 3, 9 so that, in use, weight 9 is spaced from weight 3, as shown on the left-hand side of Fig. 1, by a distance dependent upon the speed of rotation of the shaft 1. The shaft 1 is driven by an electric motor, e.g. a polyphase asynchronous motor, the speed of which is variable within a given range. The weight 3 is wedge-shaped and the wedge surfaces 4, 5 are wavy so as to increase their surface area, the rubber members 6, 7 being vulcanized on to each surface 4, 5. The ridges of the waves extend perpendicular to the shaft 1. When unbiased (as shown on the right-hand side) the rubber members 6, 7 each have the shape of a parallelepiped. The weight 9 which has arms 10, 11 engages over the members 6, 7 which are vulcanized to inside surfaces 12, 13 of the arms 10, 11. The surfaces 12, 13 are also wavy so as to increase their surface area, and the ridges of the waves extend parallel to the shaft 1. The weight 9 has a central recess 14 in which the weight 3 engages, the space between the weight 3 and recess 14 being filled by extensions 15, 16 formed on the rubber members 6, 7. The weight 3 is made of aluminium and the weight 9 of steel. A necked-down screw 18 is screwed into the weight 3 through a passage 17 in the weight 9, is engaged against a sleeve 19, and retains an abutment 21 covered by a damping pad 20. The rubber members 6, 7 are interconnected by a portion 22 which extends over the wedge apex of the weight 3, also by rubber which fills transverse passages 23 passing through the weight 3.
Patent GB-974833-A (GB)
IPC: A01B63/10
Filed: 1960-12-21
Abstract: 974,833. Tractor power lift mechanisms. REGIE NATIONALE DES USINES RENAULT. Dec. 21, 1960 [Dec. 23, 1959], No. 43943/60. Addition to 927,176. Heading A1P. In a modification of the control valve arrangement of the tractor hydraulic power-lift system described in the parent Specification, pressure fluid is supplied through a pipe 2 which opens into a cylinder 29 containing a piston 40 controlled by handle 43 and having an outlet to the sump through a passage 30, cylinder 16<SP>2</SP> and passage 32. The pressure supply line also communicates with a cylinder 34 in which is located a valve spool 10 connected to the linkage 11 connected to the control handle 12 and to the power lift arms 9 as in the parent Specification. At one end of cylinder 34 is a groove 36 connected by a duct 37 to the sump and by a passage 35 to the cylinder 16<SP>2</SP> in which is housed a piston member 16 integral with a valve member 17. The width of groove 36 exceeds the length of the land 10<SP>1</SP> of valve 10 by from 0.004 inches to 0.006 inches. The supply line 2 also connects with a passage 44 controlled by a non- return valve 23 and passage 19 to the hydraulic ram cylinder 5, a three way valve 27 being provided to operate an alternative hydraulic system. A branch of passage 19 is controlled by a needle valve 21 and connects via a spring loaded poppet valve 18 with a discharge to sump passage 38. The valve 18 may be unseated by a cam surface 39 acting on the valve stem 20. With the passage 35 cut off by the valve 10 and the passage 30 being open as shown, the pressure line is open to the sump and fluid in the cylinder is locked by the valves 18 and 23. The implement may be lowered by manipulating valve 10 to unseat valve 18, and to raise the implement, the valve 10 is moved to admit pressure fluid into space 35 whereby the piston 16 is moved and the passage 32 shut off by the valve 17. At the conclusion of a lifting movement the valve 10 is operated through linkage 11 to a position whereby passage 37 is opened. A downward movement of the implement would move valve 10 to close passage 37 and re-apply the lift.