baber/WOPTO huggingface dataset:
Patent GB-883055-A (GB)
Title: Improvements in or relating to coding apparatus for electrical telemetering systems
Inventor: GIBSON GEORGE ANGUS
IPC: H03M1/00
Filed: 1957-12-09
Abstract: 883,055. Electric selective signalling systems. GENERAL ELECTRIC CO. Ltd. Nov. 26, 1958 [Dec. 9, 1957], No. 38258/57. Class 40 (1). In a device for digitizing an unknown amplitude significant current in the range O to N units the unknown current is compared successively, by a device utilizing a meter movement, with a balance current which is successively varied until it corresponds to the unknown current within the sensitivity limits of the comparing device, the balance current having initially the value ¢N units which is then altered by an amount + (¢)<SP>2</SP>N, which is then further altered by an amount Œ (¢)<SP>3</SP>N, and so on. As described, Figs. 1 and 2, the unknown current is applied to a winding 2 and the balance current to a winding 3 of a meter movement controlling an arm 6. If the balance current is higher than the unknown current the arm 6 touches a contact 4 which energizes one of a chain AZ, BZ, CZ, DZ, EZ, FZ, GZ of subtract relays-which reduce the balance current-whereas if the balance current is lower than the unknown current the arm 6 touches a contact 5 which energizes one of a chain AP, BP, CP, DP, EP, FP, GP of add relays-which increase the balance current. The particular relay of the " Z " chain or of the " P " chain which is energized depends upon how many alterations have already been made to the balance current, which, in turn, depends upon which relay of a controlling chain of relays P, Q, R, S, T, U, V, W, X (none shown) is energized. Initially all the control relays are de-energized. The unknown current is applied to winding 2 and, assuming all the " P " and " Z " relays are de-energized a balance current of 127 units passes through winding 3. Relay P is then operated and if the unknown current differs from 127 units a relay J picks up and remains picked up throughout the cycle of operation. If the unknown current is 127 units balance is obtained immediately and relay J does not pick up. Assuming relay J does pick up, this is followed by the drop out of relay P and the pick-up of relay Q thereby allowing one of relays AZ and AP to pick up depending upon the position of the arm 6. This results in an alteration Œ 64 units of the balance current. This is followed by the drop out of relay Q and the pick up of relay R which results in a further alteration of the balance current, this time by Œ 32 units. This process continues until finally, relay W having dropped out, relay X picks up and this causes (Fig. 3, not shown) the states of the relays Z and P, which now correspond to the magnitude of the unknown current, to be dynamicized.  Reference has been directed by the Comptroller to Specification 694,907.
Patent GB-930854-A (GB)
Title: Shut-off gate valve for fluids
IPC: F16K3/28
Filed: 1959-11-13
Abstract: 930,854. Valves. RHEINISCHES METALLWERK G.m.b.H. Nov. 13, 1959 [Nov. 17, 1958], No. 38619/59. Addition to 920,641. Class 135. A gate valve 10 is partly covered with rubber 19 and is pressed on its seat by cams 11, 12 on the valve co-operating, immediately prior to conclusion of the closing operation, with corresponding cams 13, 14 on the housing.
Patent GB-346769-A (GB)
IPC: F16C27/06
Filed: 1929-12-17
Abstract: 346,769. Securing machinery to beds. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Dec. 17, 1929, No. 38631. Convention date, Aug. 16. [Class 80 (iv).] A yielding mounting for preventing the transmission of noise, vibrations and short-wave shocks in compressers and other machines, comprises projections 2, of circular cross section, on the machine casing or on its bearings 1, the projections being closely embraced by a rubber covering 3 and adjustably clamped to the bedplate 5 by a wedge-shaped clamp 7 coacting with a corresponding inclined surface on the bedplate. The inclined surfaces cause the rubber to be pressed firmly around the projections 2. Specification 297,315, [Class 80 (iv), Mechanism &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes also a bearing mounting having four circular projections completely encased in rubber bushes fitting into sockets in the bedplate. This subject-matter does not appear in the Specification as accepted.
Patent GB-996661-A (GB)
Title: Formation of alkali metal aluminates
Inventor: HRISHIKESAN KIZHAKKE GOVIND
IPC: C01F7/04
Filed: 1963-10-01
Abstract: Alkali metal aluminate, together with hydrogen fluoride, is formed by heating a solid mixture which includes an alkaline earth metal fluoride, a source of an alkali metal monoxide and free and/or combined silica and alumina to a temperature of at least 1000 DEG  C. in the presence of water vapour.  The mix should contain sufficient alkaline earth metal fluoride to eliminate all silica as alkaline earth metal silicate.  Preferably, the molar proportions of alkaline earth metal fluoride, alkali metal monoxide, silica and alumina are 2: 1: 1: 1, and the mix is heated to a temperature of from 1000 DEG C. to 1300 DEG  C. for from 15 to 120 minutes. Highly siliceous materials containing alumina, for example bauxites, aluminous clays, kaolin and red mud waste from the Bayer process in bauxite reducing plants, and alkaline earth metal fluorides, for example fluorspars and by-product calcium fluoride from the defluorination of phosphate rock, may be used. To obtain the preferred molar proportions, siliceous material and a source of alkali metal monoxide, for example soda ash, may be added as required to the mix.  From the resulting sinter, alkali metal aluminate may be leached out by known methods, and the aluminate solution may then react with the hydrogen fluoride, which may be recovered from the effluent combustion gases, to form cryolite.
Patent GB-1018992-A (GB)
Title: Steroids of the pregnane series and their production
Inventor: IGARASHI KIKUO
IPC: C07J75/00
Filed: 1962-10-15
Abstract: The invention comprises compounds of the formula <FORM:1018992/C2/1> and the corresponding D 16-derivatives, wherein R is hydrogen or an alkanoyl group having not more than 8 carbon atoms, and the preparation thereof by treating a compound of the formula <FORM:1018992/C2/2> wherein R is as defined above, with an acidic substance, e.g. H2SO4, HCl or CH3COOH, in a water miscible organic solvent medium to obtain the D 16-compound and, if desired, reducing the D 16-compound to obtain the corresponding saturated pregnane.  A 3BETA - alkanoylaxy - 16 - methyl - 16,20 - dioxo - 16,17 - seco - 5a - pregnane may be obtained as a by-product in the first step.ALSO:Urea and thiourea derivatives of the general formula <FORM:1018992/C2/1> wherein R1 and R2 may be the same or different and represent alkyl radicals; R3 represents an alkyl, haloalkyl, aryl, haloaryl, alkaryl, nitroaryl, alkoxyaryl or alkylmercaptoaryl radical or the residue obtained by the removal of a hydroxyl group from a carboxylic acid, a sulphonic acid, a phosphoric acid dialkyl ester or a thiophosphoric acid dialkyl ester; R4 and R5 may be the same or different and represent alkyl, aryl or alkaryl radicals attached directly or via an oxygen or nitrogen atom to X, or one or both of R4 and R5 represents another grouping <FORM:1018992/C2/2> X represents a phosphorus or arsenic atom; Y represents a sulphur or oxygen atom; and Z represents an electron pair or a sulphur atom, with the proviso that when X is arsenic, Z is an electron pair and R4 and R5 are the grouping <FORM:1018992/C2/3> are stated to be new compounds having herbicidal and insecticidal activity.  They may be prepared by reacting organic compounds of the general formula <FORM:1018992/C2/4> wherein R1, R2, R4, R5 and X are as defined above, with an isocyanate or isothiocyanate of the general formula R3.NCY, wherein R3 and Y are as defined above, and, in the case of a product containing trivalent phosphorus, reacting said product, if desired, with sulphur or a sulphur-yielding agent in order to convert the phosphorus into the pentavalent state.  The reaction may be effected in the presence or absence of diluents and with or without the use of elevated temperature and pressure.
Patent GB-1410278-A (GB)
Title: Viewing assembly for radiation sensor
IPC: G01N21/33
Filed: 1973-08-17
Abstract: 1410278 Ultraviolet sensor construction NATURVARD RESEARCH (CANADA) Ltd 17 Aug 1973 [23 Aug 1972] 39059/73 Heading G1A A sensor construction, for a detector of the intensity or frequency of ultraviolet radiation which is being used for irradiation (for sterilization) of a liquid, includes a chamber containing ultraviolet transmissive fluid. The arrangement, Fig. 1, comprises a body 11 having end windows 14 of fused silica (quartz) glass with sealing rings 13. The fluid in 19 is e.g. nickel-cobalt fluid and any air bubbles therein float up into larger central section 56 when the device is used in a horizontal position. A photocell 26 is secured into socket 25 by adhesive 28. The outside of part 21 is screw threaded, to take female holder 35 which has a further window 39, sealing ring 38 and tapered orifice 37, and is designed to seat in an opening in the side of container 50 for the fluid being irradiated. Parts 11, 21, 23 are of mould plastics. The chamber 19 may have a different shape e.g. with rounded walls, Fig. 2 (not shown). The chamber has a filling channel 18.
Patent GB-1375851-A (GB)
IPC: H02P7/29
Filed: 1972-08-16
Abstract: 1375851 Control of D.C. motors CONVEYANCER Ltd 16 Aug 1972 [20 Aug 1971] 39109/71 Heading H2J A D.C. motor is controlled by a semi-conductor switching device which is switched repetitively by an independent interrupting means. A series motor 1 is connected to a D.C. supply through a motor driven switch 3, a thyristor 5 and forward or reverse contactors F, R. When switch 3 closes, capacitors 63, 65 and 69 start to charge through switch 36 and when the voltage across 65 exceeds the Zener voltage of diode 62, the diode conducts and switches on thyristor 56 which in turn switches on thyristor 5. As the charge on capacitor 69 builds up the time taken for capacitor 65 to reach its pre-determined voltage decreases and so thyristor 5 is switched on earlier in the cycle on successive pulses so that the power fed into the motor gradually increases. When the charge on capacitor 69 exceeds the Zener voltage of diode 72, the diode conducts and causes thyristor 40 to energize coil 38 which closes contacts 13 and connects the motor directly to the battery. In a detail modification, a reed switch 11 connected across a shunt 10 is operated when the motor current reaches a predetermined value and energizes the contactor 38 to connect the motor directly to the battery, components 40 and 72 to 77 being dispensed with. In a second modification, Fig. 2 (not shown), the reed switch is connected through a resistor across capacitor 69 and when the motor current reaches a predetermined value the switch closes and reduces the charge on capacitor 69 which reduces the pulse frequency. A similar effect is obtained in the third modification, Fig. 3 (not shown), in which a reduction in back E.M.F. allows capacitor 69 to discharge through a Zener diode 88. If thyristor 5 becomes short-circuited due to a fault, the motor is protected by the energization of reed switch coil 47 which opens contacts 34 to de-energize contactor coil 31 or 32 to break the supply to the motor.
Patent GB-1393572-A (GB)
Title: Rescue aids
IPC: B64D25/20
Filed: 1972-08-22
Abstract: 1393572 Inflatable rescue aid P H HARDINGE 20 Aug 1973 [22 Aug 1972] 39146/72 Headings B7G and B7W [Also in Division H4] An inflatable rescue aid intended particularly for use by a person in difficulty at sea comprises an inflatable balloon 1 of a distinctive colour enclosed by a net 2 to which are secured strips 3 of radar reflective material, the balloon and net being secured to a bottle 5 containing inflation gas in either liquid or gaseous form, the lower part of the bottle forming a housing 7 for a lanyard 6 which is secured to the person's apparel. The balloon is normally enclosed by a plastics container which is screwed to the neck of the bottle and may be released or ruptured upon inflation. In an alternative embodiment the bottle, lanyard and collapsed balloon may be stored in an openable container and the balloon is of natural rubber enclosed within a plastics film of distinctive colour to the outer surface of which are secured encircling metallic strips which serve as radar reflectors.
Patent GB-1336943-A (GB)
Title: Pressure indication apparatus
IPC: G01L9/00
Filed: 1971-08-20
Abstract: 1336943 Pressure gauges DRESSER INDUSTRIES Inc 20 Aug 1971 [24 Aug 1970] 39183/71 Addition to 1249052 Heading G1L In a pressure measuring apparatus in which the free end of a Bourdon tube 10 is attached to a beam 40 carrying a vane member 11 provided with a transverse slit 12, which slit 12 in the null position is located between a lamp 13 and photocells 14, 15, and the beam 40 and slit 12 are maintained in the null position by a balanced bridge circuit and a D.C. servomotor 21 operating a spring loaded screw 27 to return, after a difference of pressure in a bellows 50 and the Bourdon tube 10 occurs, the beam 40 slit 12 to the null position and to actuate a variety of remote indicators such as a pen 30, a visual display 31 and/or a printing counter 32. Absolute pressure sensitivity of the unit is provided to the beam 40 by the bellows 50 which is initially supplied with a pressure, via a tube 51 equal to that supplied to the Bourdon tube 10 and the bellows 80 is then adjusted and secured along the beam to produce identical and balanced moments about pivots 41, 42. The bellows 50 may be evacuated through the tube 31 which is then cut and sealed. In a further, Fig.2 (not shown), opposed bellows may be used and in this embodiment may be used in differential pressure ranges.
Patent GB-1058125-A (GB)
Title: Improvements in or relating to electrothermal switch devices
IPC: H01H61/06
Filed: 1963-10-04
Abstract: 1,058,125. Thermal switches. G.V. CONTROLS Inc. Oct. 4, 1963 [Oct. 4, 1962], No. 39218/63. Heading H2B. An electrothermal device for repetitively opening and closing a pair of contacts 60, 61, comprises a frame 20 mounted on a base 10 and an elongated electrically heated expansible controlling element 40 and an ambient temperature compensating element 30 each mounted at one end on the frame, the free ends of these elements 30, 40, being joined together and arranged to actuate the movable contact 60 as described in Specification 879,796, and the device is arranged such that movement of elements 30, 40 first opens a microswitch 70 in the heater circuit before actuating the contacts 60, 61 in the load circuit, the switch 70 being opened and closed at different positions of the elements. A bracket 37 joined to element 30 carries an adjustable screw 38 which operates switch 70 through a lever 79, while a lug 34 joined to element 30 carries an adjustable screw 35 for operating the spring arm 59 carrying movable contact 60. Contacts 60, 61 are normally open or normally closed (see also Fig. 6, not shown). The adjustment may be such that switch 70 recloses after contacts 60, 61 have both opened and closed.
Patent GB-856440-A (GB)
Title: Improvements in the manufacture of ribbons
Inventor: LASZLO AKOS
IPC: D06H7/22
Filed: 1957-12-19
Abstract: <PICT:0856440/IV (c)/1> <PICT:0856440/IV (c)/2> Ribbon-like materials are produced in multiple widths, which are subdivisible into ribbons by the inclusion of strands of yarn in the material during previous manufacturing, located in positions where divisions are to take place, the strands of yarn being soluble in solvents which do not attack the bulk of the material, by batching the material made up of multiple width ribbons on a carrier in the form of a perforated cylinder member during the customary finishing process on a stentering frame, the batch of material being subsequently subjected to chemical treatment which dissolves the separating yarn.  As shown cylindrical roller 1 may be mounted on the end 2 of a stenter. Carrier cylinder member 3 is perforated.  Spindle 6 has ends 7 of smaller diameter designed to fit in fork-shaped guides 8 which prevent lateral movement but permit upward movement as the ribbon material builds up on the carrier cylinder 3.
Patent GB-1100037-A (GB)
Title: Error detection and correction apparatus for duplex communication system
IPC: H04L1/18
Filed: 1965-09-17
Abstract: 1,100,037. Data transmission systems. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 17 Sept., 1965 [22 Sept., 1964], No. 39738/65. Heading H4P. In a duplex system, data is sent in blocks comprising accept/reject bits followed by information bits, and then check bits, the former indicating whether or not the last block received contained an error. Reception of reject bits causes repetition of the faulty block. In the system described alternate blocks A and B are sent from the master station. Successive groups of characters read from a tape are passed to alternate stores A and B. A check word is calculated for each group by weighting the information bits and adding. At the slave receiver the block is stored in the appropriate block store. The check word is derived and compared with the received check word. If no error is indicated the stored block is passed to a teleprinter and an accept signal is added to the next block transmitted from the slave. The teleprinter is now switched to accept bits from the other store. If the master station detects an accept signal it erases the relevant store, e.g. A, which is then refilled from the tape. If a reject signal is received it completes transmission of the current block B but sends a mutilated check word. Store A is not erased and block A is now repeated. Block B, with its mutilated check word, and block A are repeated until an accept signal is received for block A. If the slave station had sent an accept signal which was received as a reject signal at the master due to mutilation, the same repetition procedure would ensue, but the repeated block A would not be passed to the teleprinter because reception of the previous block A would have switched the teleprinter to respond only to block B signals. Two synchronous bits preceding each block are used to synchronize the receiver clock by the addition and deletion of feed-back loops in a counter divider, Fig. 9E (not shown).
Patent GB-827803-A (GB)
Title: Improvements in and relating to a lead gripping device for lead pencils
IPC: D06B5/16
Filed: 1957-12-24
Abstract: 827,803. Propelling pencils. KREUTZER, R., and WISSMULLER, G., [trading as STAEDTLER, J. S., [Firm of]]. Dec. 24, 1957 [Dec. 24, 1956], No. 40114/57. Class 146(3) A lead-gripping device of the type fitted in the writing end of propelling pencils has internal grooving for holding the lead, a part of the grooved length being formed with transverse grooves and the other part with longitudinal grooves. The device is divided into a plurality of gripping jaws by longitudinal slots b, the jaws being provided in the region x on the sides facing the lead-receiving bore of the device with transverse grooves c which may be in the form of screw threads interrupted by the slots b. In the region y the jaws have longitudinal grooves d, the lead-gripping edges of which extend the same distance into the bore of the device as do the corresponding edges of the transverse grooves c. In a modification intended for use with leads having a longitudinally grooved outer surface, the edges of the grooves d project further into the bore than the edges of the grooves c and engage in the grooves in the leads.
Patent GB-1093899-A (GB)
Title: Foamable resins
Inventor: ROBERTS BRINLEY
IPC: B29C67/20
Filed: 1965-09-21
Abstract: Foamed articles are prepared by treating particles of a foamable resin comprising a vinylaromatic polymer, a volatile blowing agent, and a surface-active agent which is more soluble in organic solvents than in water, the treatment being carried out in a mould.  Suitable surface-active agents are long-chain esters or ethers of e.g. ethylene glycol, propylene glycol, sorbitan, sorbitol or a polycondensate of ethylene oxide.  Esters of lauric, stearic, palmitic and oleic acids, and ethers of dodecyl alcohol or dodecyl phenol are specified.  Not more than 0.5% by weight of the polymer of surface-active agent is necessary.  The volatile blowing agent is preferably a hydrocarbon e.g. a butane or pentane present in an amount of up to 10% by weight of the polymer. Specified vinylaromatic polymers are polystyrene, toughened polystyrene, polymers of substituted styrenes and copolymers of styrene with a minor proportion of an ethylenically unsaturated monomer.
Patent GB-1057029-A (GB)
Title: New penicillins
Inventor: SHERLOCK ROY
IPC: C07D499/00
Filed: 1962-10-24
Abstract: A new penicillin 6-(4-aminomethylphenylacetamido) penicillanic acid and its a -substituted derivatives, of formula <FORM:1057029/C2/1> where X is hydrogen, halogen, hydroxy methoxy, phenoxy, acetoxy or amino; and non-toxic salts thereof, are prepared by coupling 6-aminopenicillanic acid, or a salt thereof, with an amino-substituted 4-aminomethylphenyl acetic acid or a functional derivative thereof of formula <FORM:1057029/C2/2> where X is as hereinbefore defined and Y is a protecting group for the amino radical, and thereafter removing the protecting group to yield the desired penicillin.  Coupling is by (a) acylation with the acid halide, azide or anhydride of the amino-substituted phenylacetic acid or with the mixed anhydride of the amino-substituted phenylacetic acid and another carboxylic acid, e.g. ethoxyformic acid, or (b) acylation by above reactants in presence of a carbodiimide, e.g. dicyclohexylcarbodiimide. The amino radical protecting group is of formula R.O.CO- where R is alkyl, benzyl, substituted benzyl, phenyl, substituted phenyl or trityl and may be removed by catalytic hydrogenation.  The penicillins are active against penicillin V- or G-resistant strains of E. coli and Salmonella. They may be mixed with pharmaceutical diluents.  Typical salts are the sodium, potassium, calcium, procaine or N,N1-dibenzylethylene diamine salts.
Patent GB-1397238-A (GB)
Title: Apparatus for the transmission of coded information about the  transfer of goods or articles
IPC: G06K17/00
Filed: 1971-08-27
Abstract: 1397238 Sensing records; selective signalling PLESSEY CO Ltd 25 Aug 1972 [27 Aug 1971] 40395/71 Headings G4M and G4H A magnetic stripe 3 on a badge 1 identifying an article is sensed by a probe 4 which is moved by hand across the stripe, and which incorporates intermediate storage devices for storing the sensed information prior to its transmission to a data collection station or computer. The embodiment shown incorporates a radio transmitter/receiver TR for transmission from a recirculating register to a collection station 10 which controls a magnetic tape unit 14 to record the received information for onward transmission to a computer over a line 16 at a convenient time. Correct reception of the transmitted information may be indicated by a lamp 11 in response to a signal from station 10 which also erases the contents of the register. The circulating storage in probe 4 may have sufficient capacity for information from more than one badge 1 and may have an associated parity checker. If station 10 serves more than one probe 4, the probes may operate on different frequencies. In another embodiment each probe has to be physically plugged into a collecting station 10 to transfer its information. Each badge may be provided with guides 6, 7 for the probe and a separate clock track or complementary, self-clocking tracks may be provided on stripe 3.