baber/WOPTO huggingface dataset:
Patent GB-1234556-A (GB)
Title: Improvements in or relating to electrical circuit protection devices
Inventor: HARRIS ALBAN EDWARD
IPC: H02H9/02
Filed: 1968-11-29
Abstract: 1,234,556. Protective arrangements. GENERAL ELECTRIC CO. Ltd. 1 Dec., 1969 [29 Nov., 1968], No. 56834/69. Divided out of 1,233,110. Heading H2K. A protective arrangement comprises a positive temperature coefficient thermistor T1 . . . T3 connected in series with a respective circuit C1 . . . C3 and means responsive to the increased voltage drop across a thermistor consequent upon an over-current in the respective circuit. The self-heating of the transistor causes it to pass through its transition temperature with rapid increase in resistance, the resulting increase in the voltage drop causing the operation of voltage responsive means to give an alarm or to initiate a control operation. The thermistors may perform a current-limiting function or may be shunted by resistors so that they carry a fraction of the working current. Diodes D1 . . . D3 provide isolation between the respective circuits and a switch S enables a defective circuit to be identified. In an alternative arrangement the voltage responsive means is connected across the circuits C1 . . . C3 and the diodes are forward biased under overload conditions by an auxiliary source having a potential exceeding that across a circuit C1 . . . C3 when overloaded. Fig. 3 (not shown) shows a voltage responsive means as comprising a lamp in series with a transistor and zener diode, the connection from the switch S being to the base of the transistor.
Patent GB-1250476-A (GB)
IPC: B29C33/52
Filed: 1968-01-26
Abstract: 1,250,476. Moulding hollow articles. F. H. BOURNER & CO. (ENGS.) Ltd., and E. S. STEVENS. 26 March, 1969 [26 Jan., 1968], No. 4329/68. Heading B5A. A hollow article is made from thermoplastic material by moulding the material about a core and subsequently removing the core by melting it using electric induction heating. In the described embodiment, a tap is injection moulded from an acetal resin in a split mould 10 around a two part core 12, 13 of, for example, a eutectic fusible alloy of tin, lead and cadmium. The lower end of part 12 is supported upon a steel post 14 whilst part 13 is supported upon a similar steel post 19, which also supports the upper end of part 12. Part 13 has a portion 21 which projects into a channel 22 of the mould. During the injection, cooling fluid is passed through the channel to cool the core and maintain it in a solid state. After the injection the article and core are removed from the mould and placed in a first and then a second suitably shaped induction coil to melt out the parts of the core.
Patent GB-1252414-A (GB)
IPC: G01G19/12
Filed: 1969-02-05
Abstract: 1,252,414. Measuring weight electrically. P. W. RICH and D. J. SADDLER. Feb. 5, 1969, No. 11123/71. Divided out of 1,252,413. Heading G1N. A transducer for sensing the load on a vehicle axle comprises at least two resistance strain gauges 8 bonded to a spring steel plate 6 adapted to form two simple cantilevers when mounted between the axle and a spring, or between leaves of the spring, or between the spring and its U-bolt plate or on top of the spring retained by a further clamping spring. A central bolt or pin 9 passing through the leaves of the spring passes through a locating hole in the spring steel plate. A transducer is preferably provided for each spring of the or each axle of the vehicle, the transducers for the same axle being connected to form a temperature-compensated bridge circuit.
Patent GB-1252619-A (GB)
IPC: C07C51/245
Filed: 1969-12-09
Abstract: 1,252,619. Aliphatic and aromatic carboxylic acids. SUMITOMO CHEMICAL CO. Ltd. 9 Dec., 1969 [12 Dec., 1968; 29 Aug., 1969], No. 60108/69. Heading C2C. A mixture of an aliphatic carboxylic acid and an aromatic carboxylic acid is obtained by simultaneously oxidizing an aliphatic secondary alcohol and an alkyl-substituted aromatic hydrocarbon with a molecular oxygen-containing gas in the presence of a cobalt compound at 100- 160‹ C., the weight ratio of the hyrdocarbon to alcohol being 0.05 to 1.0. The oxidation is preferably conducted using an oxygen pressure of 0.01-30 kg./sq. cm. and, as catalyst, cobalt acetate, naphthenate or toluylate. In the examples a mixture of sec-butanol and p-xylene is oxidized to acetic acid and terephthalic acid.
Patent GB-1256639-A (GB)
IPC: B60Q7/00
Filed: 1969-08-15
Abstract: 1,256,639. Portable flashing lamp. D. A. BOTTING. 15 Aug., 1969, No. 40817/69. Heading F4R. In a portable flashing lamp for use by motorists, a red or amber lens 2 is provided at one end of a cylindrical casing and a clear lens 4 at the other. The lenses may be detachably held in place by rings 5, or the lenses may be a push-fit into casing 1 or be screw-threaded into the casing. A control unit 21 controls the flashing of light bulb 11, whilst bulb 18 may be energized continuously or not energized. Leads 35, 39 are provided for connection to a vehicle battery. Ventilation holes 41, 42 are provided in the casing 1 and a semicircular stand 23. The stand 23 may be replaced by folding legs.
Patent GB-1257122-A (GB)
IPC: G01B5/213
Filed: 1969-09-05
Abstract: 1,257,122. Measuring diameters. GIUSTINA & C. S.p.A. Sept. 5, 1969 [April 5, 1969], No.44098/69. Heading G1M. A fork 2 supports inclined roller pairs 11, see also Fig. 2, 3 and has a probe 16 which may be extended to touch the surface of a roll 7 to be measured. A pointer 24 shows a reading of the nominal diameter of the roll 7 and a pointer 25 provides readings of departures from the nominal diameter at different positions along the roll. (For Figures see next page)
Patent GB-1257213-A (GB)
IPC: C07D211/32
Filed: 1969-01-10
Abstract: 1,257,213. Piperidine derivatives. J. R. GEIGY A.G. 10 Jan., 1969 [11 Jan., 1968], No. 1608/69. Heading C2C. Compounds of the Formula I in which R 1  is cinnamyl or phenyl-alkyl, wherein the phenyl moiety may be substituted by F, Cl, Br or alkoxy, whereby such substituted or unsubstituted phenyl-alkyl group does not contain more than 12 carbon atoms in all and wherein the phenyl moiety instead of being bound directly to the alkyl moiety may also be bound thereto by way of oxygen, carbonyl, hydroxymethylene, imino, alkanoyloxymethylene, alkylimino, alkenylimino or alkanoylimino, and R 2  is C 2-4  alkyl and their pharmaceutically acceptable acid addition salts are prepared (a) by reacting the appropriate N-unsubstituted piperidine derivative with a reactive ester of R 1 OH or (b) by hydration of a compound IV by reaction with an aqueous mineral acid containing mercury ions, followed, where desired in (a) or (b) by acid addition salt formation.
Patent GB-1258346-A (GB)
IPC: F15B13/04
Filed: 1969-08-22
Abstract: 1,258,346. Hydraulic motor control circuits. BORG-WARNER CORP. Aug.22, 1969 [Sept. 6, 1968], No.42045/69. Heading F1P. At least two hydraulic motors 22, 26, Fig. 1 each controlled by a three-position closed-centre spool valve 21, 25 are connected in parallel to a pump delivery line 55 through valved branch lines 77, 78, the line 55 is also connected to one end of a by-pass valve 18 having a reservoir return line 56 and having its other end also connected to reservoir through a non-return valve 19 and connected to a control pressure line 60 which is connected to control parts 73, 74 of each valve 21, 25 through a line 88, a non-return valve 32, a line 86, a control signal supply means e.g. a shuttle valve 31 and lines 83, 84 the arrangement being that with both valves 21, 25 in a motor actuating position the motor actuating pressure at say each port 65 is transmitted through port 73, line 83 and shuttle valve 31 to line 86 and the higher motor actuating pressure is then transmitted through the associated valve 32 to the control pressure line 60 and the by-pass valve 18 which is thus held in such a position that the supply pressure in line 53 is adjusted to the needs of the motor requiring the higher pressure. Each of the two supply passages in each valve 21, 25 has an operator actuated variable throttle orifice. The valve in lines 77, 78 connecting supply line 55 to control valve 21 is a load check valve 34, whereas that in lines 77, 78 leading to control valve 25 is a flow control throttle valve 27 comprising a spring-loaded double-cup shaped ported piston 91, Fig. 2 in a base 92 which provides a pressure chamber 104 connected by a restricted line 87 to line 86 and connected by a line 113 and a relief valve 28 to a reservoir 36. The valve 27 serves (a) to provide a constant pressure drop across valve 25 irrespective of pressure supply variations (b) to limit maximum flow and pressure (c) to act as a load check valve and (d) to supply a low stand-by pressure to valve 25 when the latter is in its neutral central position. In a modification the control signal supply means instead of being a shuttle valve comprises tapered notches (146), (147), Fig. 6 (not shown) in the central land (143) of the spool (141) of a control valve 140. In a further modification pressure fluid is supplied by a variable displacement pump controlled by the pressure in the control pressure line.
Patent GB-1288867-A (GB)
IPC: H02M1/088
Filed: 1970-02-13
Abstract: 1288867 Protecting converters ALLMANNA SVENSKA ELEKTRISKA AB 13 Feb 1970 [14 Feb 1969] 6954/70 Heading H2F In a converting system comprising a series chain of thyristors 101 ... 104, protection against self-triggering following a-commutationperiod comprises a first polarity sensing circuit 116, 118 for determining when the anode voltage is negative, a further circuit 117, 119 for determining when the anode voltage is positive, a time delay 120, 121 interposed between one of said circuits and a AND gate 105, arranged to trigger all thyristors 101 ... 104 if the margin angle is less than the time delay t. The invention minimizes the voltage across certain thyristors that remain non-conductive if other thyristors become self-triggered. The time delay t may be adjusted in dependence on the load on the circuit by monitoring the current in a transductor 19 followed by an amplifier 20 and integrator 21. A circuit breaker 23 may operate on the A.C. side when the load is excessive. The circuit breaker 23 may also operate a by-pass switch 18 on the D.C. side of a 3-phase bridge. The conventional triggering pulses may be fed to terminal 11 either directly or via an optical link.
Patent GB-1288948-A (GB)
IPC: G09B29/00
Filed: 1969-12-18
Abstract: 1288948 Indicator boards MOVITEX SIGNS Ltd 18 Dec 1969 61641/69 Heading G5C A wall-chart board comprises three rigid panels 2, 3, 4 perforated as at 25 to receive markers 27 and slidable in grooved rails 7 and 8, wherein any panel e.g. panel 2 may be moved backwards from the grooves 5 and 6 into the grooves 9 and 10 so that it can be slid along behind the panels 3, 4. Elastic flow lines 22 are secured to the markers 27, and extend over a guide 35 and through a slot 21, Fig. 2 (not shown), to a rear bracket (23) near frame member 13. When names of months are applied to plates 26, the chart may be kept up to date when panels 2, 3 or 4 all carry information by moving panel 2 into the position occupied by the panel 4, and moving panels 3 and 4 to the left (Fig. 1). The panel 2 (full line in Fig. 3) is lifted by a pronged tool 39 and its base is moved backwards into the groove 9 (dot-dash line in Fig. 3), and then its top is moved into the groove 10; the panel 2 is then moved partially behind the panel 3, which is moved to the original position of panel 2; the panel 2 is moved partially behind the panel 4 which is moved to the original position of panel 3; and the panel 2 is then moved to the original position of panel 4. Perforated panel 34 displays information and stores markers 27 fixed to flow lines 22 not in use. Behind a card index unit 36 is a marker store. A perforated header panel 19 is provided.
Patent GB-1295672-A (GB)
Filed: 1969-01-27
Abstract: 1295672 4 - Alkylaminodiphenylamines IMPERIAL CHEMICAL INDUSTRIES Ltd 8 Jan 1970 [27 Jan 1969] 4449/69 Heading C2C A 4-alkylaminodiphenylamine is prepared by hydrogenating N - (4 - nitrosophenyl) - N- phenylhydroxylamine in the presence of a hydrogenation catalyst and an aldehyde or ketone at a temperature of from room temperature to 200 C. The catalyst, e.g. palladiumon-carbon, preferably has a metal content of between 0À01 and 10À0% by weight based on the hydroxylamine. Suitable specified aldehydes are acetaldehyde, propionaldehyde isobutyraldehyde, benzaldehyde and α-tolualdehyde; suitable ketones being acetone, M.I.K., pinacolone, acetophenone and cyclohexanone.
Patent GB-1295713-A (GB)
IPC: E21D23/00
Filed: 1970-01-26
Abstract: 1295713 Advancing mine-roof supports K M GROETSCHEL 26 Jan 1970 [24 Jan 1969] 3623/70 Heading E1P In an advancing mine roof support having a superstructure incorporating a frame of roof bars and transverse girders, the frame is made up from two or more part-frames secured together by welding or by releasable interengaging connections (Figs. 5, 6). As shown, the frame of an outer unit of a support of the two-step kind, is made up from two partframes welded together at positions midway the length of each girder, each part-frame incorporating one roof bar and two halfgirders.
Patent GB-1296437-A (GB)
IPC: H04L12/18
Filed: 1970-03-03
Abstract: 1296437 Master and slave digital systems WASHINGTON UNIVERSITY 3 March 1970 [10 March 1969] 10114/70 Heading H4P A closed circuit television system is used during blanking periods for the passage of information from a large central memory to a plurality of receivers which can be directed to any selected portion of the transmitted data for local storage and ultimate use by any suitable processor. The data is coded in plural bit words and groups of words into word blocks. Each receiver automatically detects determined blocks and passes them into its memory. Signals from a plurality of transmitters may be multiplexed on to a common channel the signals being broadcast simultaneously with frequency separation. Each transmitter has a library of information and parts of which rapid access is required may be repeated at intervals. Any type of storage media i.e. magnetic disc, drum, or photographic may be utilized and distribution may be via telephone line, coaxial cable or microwave link. Pulse width modulated signals may be used. The transmitter has a digital memory and storage device 21 addressed by a register counter 22. Selective or random scan may be incorporated. Lead 26 provides indexing signals and causes the address next in sequence to be delivered to device 21. Twelve bits of a word are transferred in parallel to register 29 and hence to shift register 31, clock pulses through lead 35 causing the data to be fed serially through a digital-to-analogue converter 128 to a summing amplifier 130 also receiving a blanking signal from generator 43 the combined output from which is r.f. modulated and passed to a summing amplifier 134 which can receive and linearly combine information from other transmitters and pass it to a television transmission cable array 139. Each receiver(151), which includes a conven tional colour T.V. receiver (not shown) not employed in the operation of the disclosure, forwards information signals through an analogue to digital converter (175) to a serial-toparallel shift register (177) hence through a buffer register (238) to processor (153) having a memory section (154) both connected to an address counter (161) which directs memory (154) sequentially through its storage of 12 bit words. Each receiver (151) can select any one of the channels and separates the received signals into video, colour subcarrier blanking and horizontal sync. components which are delivered to conductors 168-171. A sync. and clock pulse extraction circuit is provided. A comparator (229) is programmed from the processor (153) with a tag number corresponding to the block to be selected for transmission to the memory section (154), the process being started by signals on conductors 242, 243 to synchronizer 216 and counter 244. As any receiver will receive and process only a small portion of the information transmitted, each will be a relatively simple device with a small memory capacity. Each time a sync. pulse occurs, six words are transmitted the first being triggered by a sync. pulse and 2-6 being gated by a counter 106.
Patent GB-1297943-A (GB)
IPC: G01W1/14
Filed: 1969-03-06
Abstract: 1297943 Recording-apparatus; rain gauges PLESSEY CO Ltd 5 June 1970 [6 March 1969] 11999/69 Headings G1J and G1X [Also in Division G4] Two series of pulses are recorded magnetically in different tracks of a magnetic tape which is advanced on increment after receiving each pulse for subsequent play back in order to interpret information (represented by the pulses of one series) which is received during specific periods or between events (defined by the pulses of the other series). Applied to measuring rain fall, one series of pulses may represent bucketfuls and the other elapsed time periods of e.g. 12 hours. As shown rain is collected in a funnel 4 and runs alternatively into parts 14, 15 of a tipping bucket mounted on pivot pins 17 in vertical side plates 19. Each time a predetermined volume of rain has run into one part the bucket rocks from one stop 20, 21 to the other, emptying that part and bringing the other under the funnel 4. As the bucket rocks a magnet 22 thereon actuates a reed switch 23 to produce a "rain" pulse. The operating circuit of the tape recorder Fig.4 (not shown) includes a battery and two sets of switch contacts (S1) (S2) which close for a short time upon receipt of "rain" pulses and "clock" pulses respectively to energize a corresponding recording head and subsequently a tape drive motor (M) to advance the tape a  small increment say “" after a "rain" pulse and 2" after a "clock" pulse. Water vent holes 9 are covered by a perforated copper band to prevent slugs climbing into the rain gauge. For Figures See Next Page
Patent GB-1321591-A (GB)
Title: Non-ionic iodinated x-ray contrast agents
IPC: A61K/
Filed: 1969-06-27
Abstract: 1321591 Radiopaque compositions NYEGAARD & CO AS 23 June 1970 [27 June 1969 9 Feb 1970] 32699/69 and 6130/70 Heading A5B [Also in Division C2] Radiological composition comprises iodinated amides of the formula XNR<SP>1</SP>R<SP>2</SP> (in which R<SP>1</SP> and R<SP>2</SP>, which may be the same or different, are hydrogen atoms or alkyl, hydroxyalkyl or acyloxyalkyl groups, and X is a group of the general formula: where R<SP>3</SP> and R<SP>4</SP> may be H atoms, acylamido groups NR<SP>5</SP>Ac, where R<SP>5</SP> is H, alkyl, hydroxyalkyl, acyloxyalkyl or acyl, and Ac is an acyl group; acylamidomethyl -CH 2 NR<SP>5</SP>Ac or carbamoyl -CONR<SP>6</SP>R<SP>7</SP>, where R<SP>6</SP> and R<SP>7</SP> are H atoms, or alkyl, hydroxyalkyl or acyloxyalkyl groups; and in which one of the substituents R<SP>1</SP> to R<SP>4</SP> may be a difunctional group bis-substituted by two triiodobenzoyl nuclei; or X is a group ICH 2 SO 2 -; there being at least one N-hydroxyalkyl and at least two hydroxy groups in the molecule; any of the said hydroxyalkyl groups optionally being the carbohydrate portion of a hexosamine or pentosamine) together with a radiological carrier, are suitable for cerebrospinal visualisation and cardio-vascular visualisation.
Patent GB-1321758-A (GB)
Title: Circuit breaker with separate heater
IPC: H01H71/46
Filed: 1971-11-22
Abstract: 1321758 Thermal switches; retractive switches COMEL INTERNATIONAL CORP 22 Nov 1971 54041/71 Heading H1N A thermal switch comprises a bimetal 21 movable to the dotted line position shown to open main contacts 16, 24 by an overload heater 20 on bimetal 21, heater 20 being connected in series with main contacts 16, 24 and auxiliary contacts 32, 25b. Contact 32 is formed by the free end of resilient blade 31, which free end is insulated from the fixed end of blade 31, blade 31 being depressible by reset button 26 to open auxiliary contacts 32, 25b and also snap bimetal 21 back to its original position. The electrical circuit is from terminal 17 to main contacts 16, 24, member 23, wire 20a, heater 20, wire 20b, auxiliary contacts 32, 25b, member 25 and terminal 25a. On overload, the circuit is broken by main contacts 16, 24, which remain open until button 26 is depressed when the circuit is further opened by auxiliary contacts 32, 25b, then main contacts 16, 24 close on an open circuit, the circuit firstly being closed by auxiliary contacts 32, 25b when button 26 is released. Bimetal 19 is for ambient temperature compensation.
Patent GB-1332646-A (GB)
Title: Decorated tubing and articles made therefrom
IPC: B21D53/44
Filed: 1971-01-13
Abstract: 1332646 Making tubing; rolling JOHNSON MATTHEY & CO Ltd 13 Jan 1971 [4 Feb 1970] 5456/70 Headings B3A and B3M A decorated tube, such as a rolled gold tube which is to be used in making tubular links for a watch strap or bracelet, is rolled in two or more stages and is provided during at least the final rolling stage with an embossed pattern on its outer surface. In an example, a circular tube is rolled between pairs of rollers to give it a rectangular cross-section, the tube is mounted on a mandrel, and one of the faces of the tube is patterned by rolling it between a pair of rollers, one of which is patterned. The tube is then cut into short lengths to form the links. The pattern can simulate linen or bark, and during the embossing step the mandrel can be lubricated by grease, wax, or oil; in one example the tube is coated internally with soap, and the mandrel with beeswax.
Patent GB-1341966-A (GB)
Title: Sealing method
IPC: B65B51/22
Filed: 1971-04-19
Abstract: 1341966 Applying closure members to containers STANELCO Ltd 19 April 1971 [6 April 1970] 16186/70 Heading B8C A closure membrane 4 including a tear tab 4a and formed from a foil coated with a thermoplastic sealing material, is sealed to an end of a tubular member 5 by supporting the membrane so that a region of the membrane contacts the tubular member and the tear tab is located over at least a part of its area on a supporting surface to which the sealing material will not adhere and subjecting the membrane to an induction field so as to heat the sealing material above its fusion point at least in the aforementioned region while pressing the region against the tubular member and the tag against the supporting surface. As shown, the member 5 is supported in a sleeve 7 of P.T.F.E. having a groove 9 spaced from a flange 6 of the member 5, the tab 4a resting on the upper surface of the sleeve. An induction heating coil 1 is encapsulated in a block 2 of epoxy resin, to which is attached a pad 3 of resilient material, the coil 1 at the tab side being closer to the membrane 4 than at the other side and being attached to a block 11 of highly permeable material, whereby to intensify the heating effect in the vicinity of the tear tab. In a modification, the container 5 may be supported between moving belts, the pad 3 also being replaced by an endless resilient belt where member 5 may be conveyed continuously past a working coil 1 with sealing pressure being applied as the containers press below the coil.