baber/WOPTO huggingface dataset:
Patent GB-1364738-A (GB)
Title: Piston ring assemblies
Inventor: DAVIS L M
IPC: F16J9/06
Filed: 1971-11-03
Abstract: 1364738 Piston rings SEALED POWER CORP 3 Nov 1971 [18 Dec 1970] 51027/71 Heading F2T A latch member 58 for guiding and aligning the ends 34 of an expander for use in a piston ring assembly passes through apertures provided in the legs of the corrugations and is provided with a stop 60 at at least one end there of, the apertures 50 in at least the legs at the ends of the expander being smaller than those 48 in the remaining legs of a plurality of legs at and adjacent each end of the expander to prevent the stop from passing through. The expander may be made from steel strip with radial or axial corrugations. The latch member 58 may be made of nylon or metal wire. To assemble, a length of nylon or metal wire set to a curvature less than the outside curvature of the strip is inserted through a number of apertures before stops 60 are formed. Figs. 6 to 11 (not shown) illustrate how the wire is inserted, set up with stops and turned through 180 degrees to lie in its final position.
Patent GB-1137619-A (GB)
Title: Semiconductor devices
IPC: H01L23/64
Filed: 1967-11-09
Abstract: 1,137,619. Semi-conductor devices. ITT INDUSTRIES Inc. 9 Nov., 1967 [15 Nov., 1966], No. 51073/67. Heading H1K. The leads of a semi-conductor device have their ends adjacent to the semi-conductor die 1 coplanar, the end of one of the leads 33 being arranged as an electrostatic shield to reduce the capacitance between the ends of the other two leads 31, 32 and being connected to a screening zone within the semi-conductor die of the type described in Specification 1,007,936. The shielding lead may be connected to both a screening zone and an active zone of the semi-conductor die, or to a screening zone only. All the leads are in the form of narrow tapes, connections with the zones of the die being made with thin wires 34, 35 and 36. The whole device is enclosed in plastic encapsulation 37.
Patent GB-1449278-A (GB)
Title: Gas/liquid contact columns
IPC: B01D3/22
Filed: 1973-11-02
Abstract: 1449278 Gas-liquid contact column VYZKUMNY USTAV CHEMICKYCH ZARIZENI BRNO 2 Nov 1973 51100/73 Heading B1R A gas-liquid contact column contains a plurality of traps, wherein each tray comprises a plate 2 over which liquid flows from a liquid feed at one side to a downcomer 4 at the other and having first and second sets of perforations therethrough for upward throughflow of gas bubbling structures connected to the plate and associated with the first set of perforations, each bubbling structure including a cover which closes the perforation against gaseous flow therefrom in the same direction as and also counter to the liquid flow direction and forms with the plate 2 a pair of nozzles 5 for the discharge of gas in directions transverse to the liquid flow and gas structures connected to the plate and associated with the second set of perforations, each structure including a cover which closes the perforation against gaseous flow therefrom counter to the liquid flow and forms with the plate a nozzle 6 for the discharge of gas in the direction of liquid flow. Preferably the perforations of the first set are arranged in rows and interspersed with rows of the second set. The shape of the space between the cover and its associated perforation may be rectangular, triangular or trapezoidal.
Patent GB-1203805-A (GB)
Title: Cephalosporin derivatives and a process for preparing the same
Inventor: CRAST LEONARD BRUCE
IPC: C07D501/22
Filed: 1967-11-10
Abstract: 1,203,805. Cephalosporins. BRISTOLMYERS CO. 10 Nov., 1967, No- 51355/67. Headings C2A and C20 New compounds of Formula IV wherein B is hydrogen or a blocking group, or a non-toxic, pharmaceutically acceptable salt thereof, are prepared by acylating 3-methyl-7- aminodecephalosporanic acid of formula or a neutral salt thereof, with at least a substantially equimolar amount of an acid of formula or an acylating derivative thereof, in an inert solvent at a temperature of from - 50‹ C to 50‹ C and, if required, (A) removing the blocking group and/or (B) converting the compound to the desired salt The blocking groups may be a triphenylmethyl group, a group wherein R is allyl, t-butyl, substituted alkyl, phenyl, substituted phenyl, benzyl or substituted benzyl, or triphenylcarbonyloxy group. Salts are formed with the carboxylic group e.g. with metallic cations such as sodium and amines such as trialkylamine, and also with the amino group e.g. hydrochloride and succinate. A derivative 3 - methyl - 7 - [2<SP>1</SP>,2<SP>1</SP> - dimethoxy - 5<SP>1</SP> - oxo - 4<SP>1 </SP>- (2<SP>11</SP> thienyl) - 1<SP>1</SP>- imidazolidinyl] decephalosporanic acid of Formula V is prepared by reacting a compound of Formula IV wherein B is hydrogen with an excess of acetone. (-) - α - (2-thienyl) glycine is prepared from d, 1-α- amino (2-thienyl acetic acid by resolution with d-10- camphorsulphonic acid in acetone α - (2,2,2 - Trichloroethoxycarbonylamino)- α - (2-thienyl) acetic acid is prepared by treating α- (2-thienyl) glycine with 2,2,2-trichloroethyl chloroformate. (-) - α - Carbobenzoxyamino - (2 - thienyl) acetic acid is prepared by treating (-)-α-amino (2-thienyl) acetic acid with carbobenzoxy chloride. A pharmaceutical composition for the treatment of infections in humans and animals comprises a decephalosporanic acid of Formula IV or a salt thereof, and a carrier.
Patent GB-1262037-A (GB)
Title: Apparatus for the thermal treatment of foodstuffs
IPC: F24C15/32
Filed: 1970-10-29
Abstract: 1,262,037. Ovens. BURGER EISENWERKE A.G. 29 Oct., 1970 [11 April, 1970], No. 51557/70. Heading A2A. An apparatus for the thermal processing of foodstuffs comprises a muffle 4 in housing 1, a blower 3 in the rear wall 2 of housing 1 and telescopically interengaging and mutually displaceable angle rings 5, 6 surrounding the blower 3, ring 5 being secured to muffle 4 and ring 6 to housing 1. Between rings 5, 6 is a ring or strip of asbestos. The blower 3 is provided with an air baffle ring 9 which serves as a guide for the blower during assembly of the apparatus.
Patent GB-1181176-A (GB)
Title: Gold Recovery
Inventor: LANCY LESLIE EMERY
IPC: C25C1/20
Filed: 1968-10-31
Abstract: 1,181,176. Electrolytic recovery of gold. LANCY LABORATORIES Inc. Oct.31, 1968, No.51586/68. Heading C7B. Gold is recovered from a waste solution used to wash off dragout from gold plated workpieces provided by a gold electro-plating operation by converting the waste solution, by adding alkali metal (e.g. Na or K) OH or CN as required, to an alkali metal cyanide solution having a pH above that at which HCN will be evolved (e.g. at least 10), passing the converted solution through an electro-plating bath having plate anodes and cathodes to plate out the gold as a peelable foil on the cathodes, and returning the solution to the washing operation. As shown, wash water from overflow troughs 12 of dragout recovery tanks 11 associated with several gold plating tanks 10 (e.g. cyanide, neutral and acid type plating lines A, B and C) through which workpieces 9 are passed, may be combined to pass via main line 14 into a  conditioning tank 15 where conversion takes place, the NaOH supply being controlled by a pH controller 19 connected to an electrode system 20 which senses the requisite PH. A minimum of 0À5oz/gal of cyanide is preferably maintained in solution assisted by agitation using a mixing blade 24. An electrolyte level indicator 21 may be used to operate a pump 26 to cause the converted solution to pass through an electro-plating tank 30, where gold is recovered, and out through lines 31, 33 back to the recovery tanks 11. The tank 30 is described in detail as being separated into zones by vertical separator plates with a pair of steel anode plates and a steel cathode plate being suspended within each zone from hangers on electrode bars mounted across the top of the tank Figs.2 to 6 (not shown).
Patent GB-1169540-A (GB)
Title: Pulse Producing Systems
Inventor: MOORE JOHN HOWARD
IPC: H03K3/281
Filed: 1965-12-06
Abstract: 1,169,540. Transistor pulse circuits. JOSEPH LUCAS (INDUSTRIES) Ltd. 14 Nov., 1966 [6 Dec., 1965], No. 51619/65. Heading H3T. A circuit for producing constant duration pulses from a variable frequency A.C. comprises a bi-stable circuit utilizing transistors 13, 14 and a monostable circuit utilizing a transistor 22, reciprocally coupled to one of the transistors (14) of the bi-stable circuit.
Patent GB-1096220-A (GB)
Title: Improvements in or relating to wire mesh and wire cloths
IPC: D21F1/10
Filed: 1964-12-22
Abstract: Wire, for the sieve of a paper-making machine, is made of an alloy having the following percentage composition:- <TABS:1096220/C6-C7/1>
Patent GB-1354157-A (GB)
Title: Speed control device for an electric motor in a sewing machine
IPC: H02P7/288
Filed: 1971-11-10
Abstract: 1354157 Control of A.C. motors NECCHI SpA 10 Nov 1971 [11 Jan 1971] 52238/71 Heading H2J The driving motor 16 of a sewing machine is controlled by an assembly 14 having a variable resistance 20 which is progressively cut out of circuit until it is short circuited by closure of a switch 23, the members 20, 23 being coupled to a control pedal 24 which may be further depressed, after actuation of members 20, 23, to close a switch 21 shunting a diode 22. The latter operation raises the motor to full speed providing that a switch 19 shunting a further diode 18 is also closed. Switch 19 may be opened at the start of a sewing operation requiring reduced speed, but if it is not so opened the reduced speed may be readily obtained at any time during the operation by release of the pedal 24 to open switch 21. Connectors 25, 26 ensure that the diodes 18, 22 are always poled in the same direction when connecting the assembly 14 to the machine.
Patent GB-1535198-A (GB)
Title: Vibration damping steel sheet
IPC: G10K11/168
Filed: 1975-12-24
Abstract: 1535198 Laminates NIPPON STEEL CORP 24 Dec 1975 [25 Dec 1974 7 March 1975] 52767/75 Heading B5N A vibration damping laminated steel sheet comprises at least two steel sheets laminated with a uniform intermediate layer composed of a viscoelastic polymer having a loss factor of not less than 0À1, e.g. an acrylonitrile-styrene copolymer plasticized with phthalic or sebacic acid or polyvinyl acetate, polyvinyl chloride, polystyrene or an acrylonitrile copolymer plasticized with an ester of phthalic, phosphoric or sebacic acid.
Patent GB-1150151-A (GB)
Title: Rolling Mills
Inventor: BEARD JACK HERBERT
IPC: B21B31/10
Filed: 1965-06-22
Abstract: 1,150,151. Rolling. DAVY & UNITED ENG. CO. Ltd. 14 June, 1966 [22 June, 1965; 13 Dec., 1965], Nos. 26261/65 and 52905/65. Heading B3M. Roll changing apparatus for use with a 4-high mill includes a rig 27, having two support platforms 31 and 32, which is vertically movable to align either of the platforms with a floor level 36. As shown, a working roll pair 20 has been shifted laterally from a mill frame 12, a replacement pair 20a being moved into the frame after raising the platforms by means of jack 35. The rig 27, together with a pair of backing rolls 15 and 16, are supported by spacers on the other, can be laterally moved to the right using a jack 38, Fig. 3. The roll pairs 20, 20a are provided with wheels 26 which co-operate with rails on the platforms, while the backing rolls are supported on a sled 37. The rig 27 is supported on stronger foundations, Fig. 4, when the backing rolls are to be supported, the upper platform 32 being removable for this purpose. The rolls are moved by a sled 37 on to the platform 31 by means of the hooked rod 53 of an hydraulic ram, and are lifted by a crane from the platform. Alternatively, wheels may be provided to permit the rolls to be moved on rails on to the platform and, after raising the platform, along floormounted rails. The rolls may be moved singly or in pairs.
Patent GB-1272199-A (GB)
Title: Improvements in railway goods wagons
IPC: B61D39/00
Filed: 1970-11-06
Abstract: 1,272,199. Sliding roofs. RHEINSTAHL SIEGENER EISENBAHNBEDARF G.m.b.H. 6 Nov., 1970 [7 Nov., 1969], No. 52965/70. Addition to 1,200,623. Heading B7L. [Also in Division F2] In a railway goods wagon as claimed in claim 1 of Specification 1,200,623, means is provided for rotating the rope drum including a hand wheel 16 and a two ratio gear assembly which is arranged to transmit the force applied to the hand wheel to the rope drum via a drive shaft 76 and a driven shaft 79 connected by a wheel 92 and chain 93 to the rope drum, the gear assembly adopting a first or second "state" depending on the magnitude of the applied force. The gear assembly includes, in addition to the shafts 76, 79, two pairs of chain wheels 80, 82 and 81, 83 arranged on the shafts, the wheels 82, 83 being fast for rotation with the shaft 79, and being connected respectively to the wheels 80, 81 by chains 84, 85, and a spring biased clutch mechanism on the shaft 76 arranged between the wheels 80, 81. The clutch mechanism 13 in the form a dog coupling including two coupling sleeves 86, 87 having coupling dogs 86a and 87a respectively, the dogs 86a being engageable with corresponding frusto-conical dogs 80a on the wheel 80, and the dogs 87a being engageable with corresponding rectangular dogs 81a on the wheel 81. The sleeve 86 can slide within the sleeve 87 and the two sleeves are rendered fast for rotation with the shaft 76 by a key 88 arranged through slots in the sleeves and shaft, the slots in the sleeve 87 and shaft being of such a length that the sleeves 86, 87 are longitudinally movable on the shaft. A compression spring 89 tends to separate the two sleeves, and is opposed by a tension spring 91 arranged within the shaft 76 and secured to the key 88. The springs are so adjusted that when the gear assembly is not subjected to load the dogs 86a are engaged with those of the wheel 80, and the sleeve 87 is disengaged from the wheel 81, as shown in the Figures, the gear assembly then being in a first "state". On rotation of the hand wheel the coupling sleeve 86 remains engaged with the chain wheel 80 until the magnitude of the force applied to the hand wheel is greater than the friction produced by the spring 91, and causes slip due to the shape of the dogs 80a and 86a, whereby the sleeve 86 becomes disengaged. The force of the compression spring 89 then effects engagement of the sleeve 87 with the wheel 81, this corresponding to a second "state" of the gear assembly. The spring 91 is adjusted so that the changeover from first to second "states" occurs when the roof part is being lifted, a smaller applied force being necessary in the second "state", the first "state" being adapted by the gear assembly in rest and when the roof parts are being moved horizontally.
Patent GB-1484936-A (GB)
Title: Gas turbine engines
IPC: F01D11/10
Filed: 1974-12-07
Abstract: 1484936 Gas turbines ROLLS-ROYCE (1971) LTD 2 Dec 1975 [7 Dec 1974] 52995/74 Heading FIT To ensure rapid expansion of a turbine rotor blade tip seal ring 26 on starting, but slow contraction thereof on stopping the turbine, the ring is supported by two members, the first of which is a light annular member 27 which expands rapidly when heated, and the second of which is a massive annular member 32 which both expands and contracts slowly. The seal gap is hence maintained small. As shown, the member 27 is supported on radial pins 29 fast with the casing, air from the high pressure compressor passing through holes 33 through the member on to the sealing ring which is supported on flanges 28, 28a fast with member 27. The ring 26 may be continuous or formed from a number of segments. The member 32 is shown as a flange integral with the casing, and having an axial extension 34 supporting the ring 26. Again Fig. 4, (not shown), each ring segment is mounted on the casing at one end by an integral lever (40), and is supported in the middle by the two annular members. Also, Fig. 3, (not shown), the second annular member 32 is mounted with number 27 on radial support pins (42).
Patent GB-1330871-A (GB)
Title: Automatic telephone answering device
IPC: H04M1/652
Filed: 1970-11-11
Abstract: 1330871 Substation apparatus PIONEER ELECTRONIC CORP 11 Nov 1970 [12 Nov 1969] 53704/70 Heading H4K A telephone answering machine includes a facility for informing the absent subscriber that a call has been received by operating an automatic dialling device for a predetermined period after the caller's message has been recorded. An incoming call on line 1 is detected after a delay by the starting circuit 2 causing operation of a switching circuit 3 which energizes relay Y1. Operation of relay Y1 starts endless tape T1 to replay a recorded message to the caller followed by a "beep tone" produced by oscillator circuit 12 when stop foil 8 engages contacts 9. After a delay relay Y2 operates to start the tape T2 so that the caller's message can be recorded on track t21 of this tape. When the time delay set by capacitor C2 charging through resistor R2 has elapsed relay Y1 is de-energized to return the answering machine to a standby condition. Capacitor C2 is now connected to unit 20 which causes the auto dialling unit 100 to operate and call a telephone set or receiver or a "pocket bell" for a predetermined time thus indicating that a call has been received. The subscriber can now call the answering machine and by sending a tone which can pass filter 15 causes relay Y3 to be operated by circuit 18 and the messages recorded on track t21 of tape T2 to be replayed. At the end of the messages the tone recorded on track t22 of the tape causes switching circuit 18 to de-energize relay Y3 and the machine returns to a standby condition. During this sequence capacitor C2 is earthed through contact Y36 so that when it is applied to unit 20 no operation occurs.
Patent GB-1413688-A (GB)
Title: Analogue function generator
IPC: G06G7/26
Filed: 1972-11-22
Abstract: 1413688 Magnetically sensitive position transducers SIEMENS AG 22 Nov 1972 [22 Nov 1971] 54096/72 Heading G1N A displacement transducer arrangement comprises a magneto-sensitive element, e.g. a Hall effect device, 16 which, on relative displacement is subject to a varying magnetic field derived from two opposite magnetic poles 12, 13 whose abutting boundary lies at an angle to the direction of travel. As shown the poles are formed as a rectangular strip ABCD of magnetic foil, which is arranged on the periphery of a wheel. In a further embodiment the magnetic poles are disposed on the face of a disc, the boundary between them forming a spiral.
Patent GB-1067929-A (GB)
Title: Improvements in or relating to a bell and spigot clamp
IPC: F16L23/04
Filed: 1965-12-22
Abstract: 1,067,929. Pipe clamps. DRESSER INDUSTRIES, Inc. Dec. 22, 1965 [Dec. 23, 1964], No. 54474/65. Heading E2B. [Also in Division F2] An adjustable pipe clamp for repairing bell and spigot joints comprises a bell ring and a spigot ring each comprising a plurality of arcuate sections each having at its ends and on opposite sides a series of teeth so that teeth of one section interlock with adjacent teeth of the next section, the sections being adjustably secured together by bolts which pass through holes in the section which are radially outward of the teeth. The bell and spigot rings are bolted together by bolts passing through holes 22, 47, in enlargements of the rings. The sections are adjustably secured together by bolts 31, 57 which pass through holes in one section and elongated slots in the other. The bell ring has inner and outer axially extending flanges 43, 58 and reinforcing webs 9, 48 and 49 for the enlargements containing the bolt holes. The spigot ring has radial flanges 18, 35 and an axial flange 23 with a dependent inclined portion shaped to engage a gasket 14. Webs 36 reinforce the ring. In order to obtain a continuous gasket engaging surface when the ring is adjusted near to maximum size and filler element engaging a rib near the teeth and inserted, the filler element having a profile similar to that of the ring.
Patent GB-1384368-A (GB)
Title: Steam iron
IPC: D06F75/18
Filed: 1973-11-23
Abstract: 1384368 Steam/spray irons SCOVILL MFG CO 23 Nov 1973 [2 Jan 1973] 54576/73 Heading D1A An electric steam iron has two separate steam generating chambers 38 and 54 communicating with a U-shaped steam distribution channel 44 in the sole plate 12 respectively adjacent the heel and the toe of the iron.  Venting passages 68 with spring loaded plugs 70 (Fig. 6) are provided at the ends of the channel 44 for steam or brush cleaning of lint and fluff from the channel 44. The primary chamber 38, which is fed by a drip feed valve 36 communicates via passages 40, overlying the beating element 34, and slots 48 and 50 with the rear ends of the channel 44 and with passages 46, steam parts being provided in both the channel 44 and the passages 46. The secondary chamber 54 is fed by a manual pump 28, which alternatively supplies water to a spray nozzle 32, and communicates via a tortuous passage 56 in the sole plate, an aperture 64 (Fig. 2), an annular passage 60 around the chamber 38, formed by a circular hump 58 in the sole plate cover 14 and a cover plate 62, and a second aperture 66 in the cover plate 62 with the channel 44 at the toe of the iron.
Patent GB-1293368-A (GB)
Title: Brake temperature measuring system having visual high temperature indicator
IPC: G01K3/00
Filed: 1969-11-07
Abstract: 1293368 Measuring temperature electrically GOODYEAR TIRE & RUBBER CO 7 Nov 1969 [9 Dec 1968] 54593/69 Heading G1N A system for measuring the temperatures of aircraft wheel brakes comprises four thermistors, RT1-4, in thermal communication with brakes 10, 12, 14, 16 respectively the thermistors being connected in parallel to an amplifier 22 and connected individually to a switch 18 whereby a meter 30 may be connected to display the temperature of a selected thermistor or the temperature of the hottest thermistor, the meter being connected to a bias potential at the junction of R10, R11 so that the displayed temperature is referred to a predetermined level e.g. 0‹C. and a control circuit 24 is arranged to actuate a light 40 when the temperature of the hottest thermistor exceeds a predetermined value setby arheostat R16. Alternatively the light and its control circuit may be connected through a switch to respond to a selected one of the thermistors. Or there may be a plurality of lights and control circuits.
Patent GB-1368127-A (GB)
Title: Process for the recovery of mercury contained in a sludge discharged  in the course of electrolysis of an aqueous alkale metal salt  solution
IPC: C01G13/00
Filed: 1971-11-24
Abstract: 1368127 Mercury recovery Y KUMIHIGASHI 24 Nov 1971 [26 Nov 1970] 54645/71 Heading C1A [Also in Division C7] A process for the recovery of mercury from mercury containing sludges, comprises dissolving the sludge in a mineral acid and at a pH of 3À0 to 7À0, contacting the resulting solution with a chelate forming resin containing in its functional group sulphur or oxygen chemically linked to nitrogen. Such sludges as treated by the process are formed in mercury processes for electrolysis of alkali metal salt in aqueous solution. Preferred forms of the invention use hydrochloric acid in a solution pH of 3À5 to 5À5 and also the sludge is filtered prior to the addition of acid.