baber/WOPTO huggingface dataset:
Patent GB-588601-A (GB)
Title: Improvements in or relating to gas turbine plant
IPC: F02C1/06
Filed: 1945-12-06
Abstract: 588,601. Gas turbines. MASCHINENFABRIK OERLIKON. Dec. 6, 1945, No. 33069. Convention date, Oct. 31. [Class 110 (iii)] Turbines 3, 4 are driven by air provided by a compressor 1 and heated in an exchanger 2 which is heated by a furnace 5. The air exhausted from the turbines is divided, part going as combustion air to the furnace 5 by pipe 7, part going by pipe 81 to mix with the products of combustion in the combustion chamber and part going by pipe 82 to mix with the products of combustion in the heatexchanger.
Patent GB-1363145-A (GB)
Title: Dyeing process
Inventor: MIYATAKE MASAYUKI
IPC: B41M5/035
Filed: 1971-07-14
Abstract: 1363145 Transfer dyeing TOPPAN PRINTING CO Ltd and TOYO INK MFG CO Ltd 14 July 1971 [22 July 1970] 33084/71 Heading D1B [Also in Division B6] A laminate (as defined) of a sheet material carrying a colouring material containing at least one dyestuff which is not a fibre-reactive disperse dyestuff and which can sublimate, melt or evaporate, a material to be dyed, a material which is porous, heat durable and is not dyed during the dyeing process adjacent the material to be dyed, is situated between two metal plates which are heated and the laminate evacuated to a pressure of less than 100 mm Hg, the dyestuff then transferring to the material to be dyed. Paper is preferably used as the transfer sheet and textiles dyed include polyolefines, vinyl chloride, polyurethanes, acrylonitrile copolymers which may be in the form of pile fabric, felt, carpeting, velvet or knitted forms.
Patent GB-978005-A (GB)
Title: Flow cell for ion potential measurements
IPC: G01N27/28
Filed: 1962-08-29
Abstract: 978, 005. Electrolytic testing apparatus. BECKMAN INSTRUMENTS Inc. Aug. 29, 1962 [Dec. 12, 1961], No. 33087/62. Heading G1N. In an electro-chemical half-cell for measuring an ion concentration of liquid in a conduit 11, 12 the glass membrane 16 is a length of tubing sealed at each end to lengths 17, 18 of non ion sensitive, high impedance glass and pinched at the centre to increase the flow and thus reduce sediment deposit, a helical bristle brush 46 driven by the effect of flow on blades 47, 48; being provided to clean the inner surface of the membrane. A well buffered electrolyte solution is maintained in contact with the membrane by a glass tube 23 having an outlet through a ball 32 and socket 30 arrangement to an internal half-cell 28. A reference half-cell 54 is coupled to the flowing liquid by a similar ball and socket arrangement 55, 57. A protective mesh screen 35 which also provides electrical screening is seated in grooves 36, 37, in cups 25, 38 the latter of which is on sliding fit on the tube to allow for expansion. Glass tube 23 is also free to move at its top end, being sealed to tube 18 by 0 ring seals. An electric motor may be provided to assist rotation of the brush by the flowing fluid and may comprise a rotor within tube 18 and a stator outside.
Patent GB-720459-A (GB)
Title: Wide band amplifier
IPC: H03F1/50
Filed: 1952-12-31
Abstract: 720,459. Valve amplifying circuits; limiters. ATOMIC ENERGY OF CANADA, Ltd. Dec. 31, 1952 [Jan. 9, 1952], No. 33111/52. Class 40 (6). A wide-band feed-back amplifier, V1-V3, is stabilized by giving the feed-back path characteristics which are the opposite of those of the first, V1, or alternatively the second stage, V2. The stages V1-V3 are resistance-capacity coupled, the last stage, V3, having a cathode load resistance R14; a resistance R3 of much smaller value is common to the cathode circuits of stages V1, V3 and provides overall negative feed-back. The amplifier is stabilized by means of a condenser C7 connected across the resistance R14, so as to give a time-constant equal to that of the anode load of the stage VI, which comprises resistance R4 and fortuitous shunt capacity C15. Resistance 15 and condenser C8 compensate for phase shift caused by the cathode-ground capacity of the valve V3. The valve V3 is also provided with an anode load R16 and feeds an output amplifier comprising stage V4 and a cathode follower V5. Negative feed-back is provided to the grid of the stage V4 by means of resistance R23 and phase-correcting condenser C 19 ; this feed-back causes the resistance R16 to be shunted by an effective impedance of much lower value. The amplifier is more particularly intended for amplifying random pulses, and to avoid overload on negative-going input pulses of large amplitude a diode D1 is connected between the cathode of valve V2 and ground. For pulses of normal amplitude the diode D1 is conductive and the gain determined by the diode resistance R10. Positivegoing pulses of large amplitude at the grid of V2 cause conduction in the diode D1 to cease; the resistance R9 being of large value, the valve V2 then cathode-follows so that grid current is prevented and the gain falls to a low value.
Patent GB-1282713-A (GB)
Title: An improved cooking apparatus
Inventor: ANYON BENJAMIN DOUGLAS
IPC: A47J37/12
Filed: 1968-07-11
Abstract: 1282713 Deep fat fryer PROFECO Inc 11 July 1969 [11 July 1968] 33173/68 Heading A4D A cooking apparatus comprises a cylindrical vat 11, an electrical heating element 12 and a temperature sensor 13, a container 23 for receiving the food to be cooked, a baffle 24 surrounding the container 23, a cover 41 which in its closed position is spaced from the baffle 24 and a mechanism 28 for automatically lowering and raising the container 23 into and out of the vat 11. The mechanism 28 comprises two sprockets 31, 33, a container support member 38 clamped to a chain 34 extending around the sprockets 31, 33 and two electric motors, a first capable of rotating the sprocket 31 clockwise and a second capable of rotating the sprocket 31 anti-clockwise to cause lowering and raising, respectively, of the support member 38. The first motor is energized by a switch 45 and subsequently deenergized by engagement between a plate (35) Fig. 3 (not shown), attached to the chain 34, and a micro-switch (36), Fig.3 (not shown), when the support member 38 has reached its lowermost position. With the support member 38 in this lowermost cooking position, a timer switch (44a), Fig. 3 (not shown) is capable of energizing the second motor after a predetermined cooking period once the switch 45 has been switched out of the circuit of the first motor and into the circuit of the second motor. The second motor is de-energized when the support member 38 has reached its uppermost position by the plate (35) engaging a micro-switch (37) Fig. 3 (not shown), The vat 11 has a recessed bottom portion covered by a frusto-conical cover 16 with an aperture at its apex.
Patent GB-1014148-A (GB)
Title: Socket-spanner for the wheel nuts of vehicles or the like
IPC: B25G1/04
Filed: 1964-08-14
Abstract: 1,014,148. Spanners; hand tool handles. R. A. ROIG. Aug. 14, 1964 [Dec. 3, 1963], No. 33330/64. Headings B4C and B4W. A box spanner for wheel nuts of vehicles comprises a rod 1 having an hexagonal socket at one end and a cross-piece 2 having arms of equal length, a sleeve 3 being slidably mounted on the end of each arm. A flange on the end of each arm 2 has a spring ball catch 5 to engage one or other of two slots 4 formed at either end of each sleeve, the sleeves when in their outer position increasing the leverage of the arms. A flange 7 for levering off hub caps is provided at the upper extremity of the rod 1 and a loosely fitting hand grip 8.
Patent GB-1158964-A (GB)
Title: Esters of Cyclopropanecarboxylic Acids with Cyclopentenolones, processes for producing them, and Insecticides incorporating them
IPC: A01N53/10
Filed: 1967-07-20
Abstract: 1,158,964. Insecticides containing esters of cyclopropane carboxylic acids. SUMITOMO CHEMICAL CO. Ltd. 20 July, 1967 [20 July, 1966 (2)], No. 33391/67. Heading ASE. [Also in Division C2] As insecticides, use is made of esters of cyclopropane carboxylic acids with cyclopenten-olones, the esters having the formula in which R<SP>1</SP> denotes hydrogen, an alkyl group of 1-4 carbon atoms or a phenyl group, which may be substituted with an alkyl or alkoxy group of 1-4 carbon atoms, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> denote alkyl groups of 1-4 carbon atoms and R<SP>5</SP> denotes an alkyl or alkenyl group of 1-4 carbon atoms, a dialkenyl group of 5 carbon atoms, a cycloalkenyl group of 5 or 6 carbon atoms, an aralkyl group of 7-9 carbon atoms or a furfuryl group (see Division C2). The esters may be formulated as oil sprays, emulsifiable concentrates, dusts, wettable powders, aerosols, granules, mosquito coils or fumigant or bait compositions with the aid of carriers or diluents, and such products may contain other insecticides, some of which are specified. Specific compositions are described, and experimental results are given.
Patent GB-1522791-A (GB)
Title: Lintels
IPC: E04C3/02
Filed: 1974-07-29
Abstract: 1522791 Lintels CATNIC COMPONENTS Ltd 28 July 1975 [29 July 1974] 33476/74 Addition to 1298798 Heading E1K In a modification of the lintel, subject of Parent Specification, the support member 5 and the lower horizontal plate 6 are formed integrally from a single member.
Patent GB-611317-A (GB)
Title: Improvements in lustering processes
IPC: B05D3/12
Filed: 1945-12-11
Abstract: 611,317. Coated fabrics; compound sheet materials. GILLOT, G. H. Dec. 11, 1945, Nos. 33514 and 33515. Convention dates, Dec. 30, 1944 and Nov. 2, 1945. [Class 140] [Also in Group XV] The surface of an article is lustered by coating the surface with a thermoplastic material in liquid form, drying the coating, covering the coated surface with a flexible and smooth sheet of non-thermoplastic and non-fibrous cellulosic material and then, at a temperature substantially equal to the softening point of the thermoplastic coating exerting pressure on the coated surface through the interposed sheet by means of a polished metallic surface. If desired the cellulosic sheet may be stripped from the article. The lustering of the surface of an article may take place during the shaping of the article from a blank. The thermoplastic material may be an aqueous emulsion of a polyvinyl resin which may be applied by brush or spray gun. The pressure exerted by the polished metallic surface is about 5 to 10 kilograms per square centimetre. The articles lustered may be made from leather, cardboard, artificial leather, lacquered woods, fabrics and metals. Specifications 439,460, 551,440 and 16785/43 as open to inspection under Sect. 91, are referred to.
Patent GB-1188729-A (GB)
Title: Windscreen Wiper for Vehicles, more especially for Automotive Vehicles
IPC: B60S1/38
Filed: 1968-07-15
Abstract: 1,188,729. Windscreen wipers. SWFSPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU G.m.b.H. 15 July, 1968 [13 July, 1967], No. 33601/68. Heading A4F. A wiper has a main yoke and at least one intermediate yoke which is connected with a wiper rubber having a reinforcing strip or strips by holders made of plastics material, and each holder 14 has a passage 18 for receiving the end 19 of an intermediate yoke, a projection 20 within the passage 18 engaging in an aperture 21 in the yoke, and each holder 14 having diverging walls 22 formed with claws 24, the walls and claws forming a trapeziumsection passage and engaging around a wiper rubber spine 25 with clearance between them and a reinforcing strip or strips 17, the claws 24 engaging in recessses in the wiper spine. In each of the holders at the ends of the wiper rubber the trapezium-section passage is formed with a shoulder against which engages a shoulder on the wiper rubber.
Patent GB-742227-A (GB)
Title: Improvements in or relating to spiral staircases
IPC: E04F11/032
Filed: 1953-12-04
Abstract: 742,227. Spiral staircases. MATTHEWS, C. H. Dec. 6, 1954 [Dec. 4, 1953], No. 33734/53. Class 20(4). A step for a spiral staircase is secured to a central pillar 11 by a bracket 9 secured to the inner end of the riser 7 and formed with a locking part 10 adapted to be threaded on the pillar 11. Each step comprises a tread 6, preferably a right-angled triangle, having a nosing 8 extending along the base of the triangle forming the outer edge of the tread 6. The bracket 9 is formed with a loop or collar 10 and is secured to the riser 7 by bolts or rivets. The riser 7 has an outwardly projecting flange 12 to lie under the inner edge of the adjacent tread 6 and the tread 6 may be stiffened by a suitable web 13.
Patent GB-803705-A (GB)
Title: Improvements relating to timing arrangements
Inventor: LONG DOUGLAS PERCY
IPC: H04M15/10
Filed: 1955-11-25
Abstract: 803,705. Metering. SIEMENS EDISON SWAN, Ltd. Nov. 15, 1956 [Nov. 25, 1955], No. 33876/55. Class 40 (4). At the initiation of a timing process, a first group of relays is set according to the electrical pattern on a number of code wires, this pattern changing step-by-step with the passage of time to affect a second group of relays. When the initial pattern occurs again the second group of relays assumes the same pattern as the first and a metering pulse is sent to line. Operation of a start relay S (not shown) prepares the timing circuit. When contacts AS close briefly relay PS energizes and locks up. The first code to appear subsequently at the closure of one or more of contacts W, X, Y, Z is registered on the first group of relays WA, XA, YA, ZA, the operated relay or relays locking up. Shortly after, contacts AZ close to set up PZ which locks up and cormects the code contacts W-Z to the second group of relays WB-ZB. Thereafter at 12-second intervals contacts AS close briefly followed by a new combination of contacts W-Z and finally contacts AZ. The new combination of contacts W-Z sets up relays WB-ZB. PS and PZ close a resistance circuit through TP but TP is shunted by at least one path through the contacts of WA-ZA or WBZB until the fifteenth step of the code combination when the patterns set up on relay groups WA-ZA and WB-ZB are the same. TP then pulls up to pulse metering lead 2. The metering lead is thus pulsed every three minutes.
Patent GB-841282-A (GB)
Title: Translucent and light reflecting focusing screen for photographic apparatus
IPC: G03B27/72
Filed: 1956-11-06
Abstract: 841,282. Photographic apparatus. AGFA A. G. Nov. 6, 1956 [Nov. 10, 1955], No. 33909/56 Class 98(1) A focusing screen for photograph enlarger has a translucent light diffusing layer and a partially translucent substantial reflecting layer, the layers being so arranged that a light beam incident on one side of the screen is partly reflected from that side and partly transmitted through the screen. In one form, the light dispersing layer is a transparent plate with a slightly roughened surface on which the reflecting layer is coated. This reflecting layer may be produced by vaporizing a metallic coating or coatings of high and low refracting materials. Alternatively, the roughened surface of a glass plate may contact a translucent and refracting layer coated on a transparent plate. Such a focusing screen 5 may be inlaid on the easel 3 on an enlarger, this easel containing a photocell 4 on to which light passing through focusing screen is reflected and which operates an exposure control device. Between screen 5 and cell 6 is a filter 7, the opacity of which increases in the direction of the photocell.
Patent GB-521842-A (GB)
Title: Improvements in securing joints between wood, metal and other solid materials
IPC: F16B25/00
Filed: 1938-11-22
Abstract: 521,842. Furniture joints. OSMOND, G. E. Nov. 22, 1938, No. 33970. [Class 52 (ii)] [Also in Groups XXII and XXV] Parts of metal, wood, plastic compositions and other solid materials are connected together by headless screws nicked at one end for driving. Holes to receive the screws may be drilled and if necessary tapped or the screws may be of the self-tapping variety. If the screws are of wood the rod from which they are made may pass direct from a threading die into the work the fibres expanding therein: to secure the. screw without the use of glue. May be used with plywood and in the manufacture of furniture, aircraft, picture frames, and joinery. Reference has been directed by the Comptroller to Specification 9022/98, [Class, 52].
Patent GB-889630-A (GB)
Title: Method and apparatus for pre-closing the fold closure of paper or like containers
IPC: B65B7/04
Filed: 1959-10-07
Abstract: 889,630. Pre-closing containers prior to filling. JAGENBERG-WERKE A. G. Oct. 7, 1959 [Oct. 11, 1958], No. 34004/59. Class 94(1). A method of pre-closing a container 5, Fig. 4, so that it has a peaked roof type of closure formed by crease lines 7, 8, 9 and 10 surrounding fold-in tucks 6, comprises the steps of deforming the container in the region of the lines 10 to a parallelogram-like shape, Fig. 6, and then folding inwardly the tucks 6 in such a manner that the fold edges 7 extending away from the tips of the tucks 6 move past one another beyond the normal position that will be adopted by them when the container is eventually filled and closed. The pre-olosing operation may be continued until the two tucks 6 lie in a common plane. An apparatus for carrying out the method comprises a former 1, Fig. 1, on supporting rods 2, that is inserted into the container 5 to deform it in the region of the fold lines 10 into a parallelogram shape in cross-section, Fig. 3, and two mutually opposed flap folders 3 that are then pivoted by means 4 to force the tucks 6 to be displaced inwardly into a common plane.
Patent GB-669544-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L9/20
Filed: 1947-12-23
Abstract: 669,544. Cleaning gas filters. HOOVER, Ltd. Dec. 23, 1947 [Dec. 28, 1946 ], No. 34018/47. Class 8 (ii) In apparatus for cleaning the filter of a vacuum cleaner, the filter bag 31 is supported at one end by a yoke having arms 39, 40 pivoted to a bracket 37 secured to the bag ; the yoke is pivoted on a pin 41 carried by a bracket 42 attached to the cleaner casing and a link 46 is pivoted to the bracket 42 and the arm 43. The bag is maintained taut by a pair of torsion springs 47, 48 and the movement of the yoke is limited by stops 51. To shake the bag to remove its contents, a rod 58, having a knob 56, is connected by a flexible cable 57, that passes around pulley 60, to a slide 65 in the bracket 42 ; the slide is connected by a bail 69 to the arms 39, 40. In alternative arrangements, the pulley 60 is arranged with its axis vertical and the cable is connected directly to the yoke. As shown in Fig. 8, a pulley 92 is secured to the shaft 91 on which the yoke is attached and a flexible band 57 is attached to the pulley and is provided with a loop 100. The loop 100 is engaged by a finger 105 so that when the finger is actuated by lever 117, it draws the band along until cam 116 engages a surface 115 to cause the finger to rise and release the loop ; upon release of the lever 117, the finger again engages the loop. Specifications 612,223, 643,083, 654,067 and 654,107 are referred to.
Patent GB-618845-A (GB)
Title: A new or improved coupling for shafts and other machine elements
IPC: F16D3/56
Filed: 1946-11-16
Abstract: 618,845. Shaft couplings. LOWE, P. A. Nov. 16, 1946, No. 34041. [Class 80 (ii)] A shaft coupling allowing relative angular movement during drive has a plurality of flat resilient metallic blades arranged side by side with their end in driving connection with the driving and driven elements and at positions spaced angularly round the shafts. The driving and driven shafts A, B, have flanges C, the peripheries of which are slotted radially at D to receive the ends of a set of straight flat resilient metal bars E which are supported against excess torque by shorter bars F on each side. The bars E, F, may be held in the flanges C by force fits or by clamping rings and may be allowed to slide axially. The resilient bars may be bowed and may be arranged in pairs with a spacing piece between them.
Patent GB-961643-A (GB)
Title: Gaging device
IPC: B24B49/04
Filed: 1962-09-06
Abstract: 961,643. Gauging rotating workpieces. CINCINNATI MILLING MACHINE CO. Sept. 6,1962 [Jan. 18, 1962], No. 34152/62. Heading G1M. [Also in Division B3] A device for gauging a rotating workpiece 24 of non circular cross-section comprises sensing members 56 pivoted about an axis C and biased by springs 70 into engagement with the workpiece. The members 56 are alternately gripped and released by a locking member comprising an electromagnet 66 in a case 68 which locks part 57a except when a major diameter of the workpiece 24 is between the members 56. The energization and de-energization of magnet 66 is controlled by a cam which rotates with the workpiece and operates contacts. Movement of the sensing members 56 alters the gap between projections 58 thereon and orifices 72 thus causing a change in back pressure which is indicated on a gauge 100. When the workpiece has been ground to the desired size contacts 107, 108 on the gauge close causing the grinding wheel to be retracted and operating a pneumatic spring urged plunger 80 to separate members 56 to facilitate removal of the workpiece.
Patent GB-1157362-A (GB)
Title: Control System
IPC: G11B15/54
Filed: 1966-07-29
Abstract: 1,157,362. Automatic speed control. RADIO CORPORATION OF AMERICA. July 29, 1966 [Aug. 20, 1965], No.34292/66. Heading G3R. To drive a magnetic tape forwardly, command source output 18 is changed to a lower voltage level, network 30 providing a signal through temperature-sensitive network 40 to error detector 50. Amplifier 60 operates in a non-linear range to provide a substantially constant overdrive signal to capstan motor 13. As the motor accelerates in the forward direction, tachometer 65 develops a feedback signal. When the output 18 changes to the low level, gate 180 responds to open switch 87 and to close switch 85 whereby circuit 70 filters the ripple component from the velocity signal with a minimum time delay resulting in only a slight phase lag of the velocity signal. As the error signal decreases, the amplifier 60 is operated in a linear range. To accelerate the tape in the reverse direction, the output 19 is changed to a lower voltage level, the network 30 providing a reverse signal, and the switches 85, 87, being respectively closed and opened. During the rewinding operation, the network 30 responds to changes in level of both outputs 19, 20, to provide a larger signal and drive the motor at higher speed. The filter 70 is also connected in the feedback circuit for this operation. When the motor decelerates to the rest condition, the drive signal from the network 30 becomes zero, the error signal assisting in turning the motor off and the amplifier 60 operating first in a non-linear range, then in a linear range, and finally in its dead zone as the error signal decreases. When a turn-off command is received all the outputs 18, 19, 20, are at the higher of two digital levels so that the output of gate 180 is at a lower level. Switches 85, 87, open and close respectively whereby lag network 80 is operative to delay the feedback signal and prevent it from decreasing rapidly. A flip-flop 91 responds to changes in digital signal level of output 18 to close switch 93 so that capacitor 90 is connected in parallel with network 80. This connection increases the time constant of the feedback circuit during the return to zero speed from rotation in the forward direction, thus allowing for the different loadings on the motor during turn-off operations in opposite directions. The system is adapted for reversal of rotation, the filter 70 being included in the feedback circuit so that the dead band of the amplifier 60 is passed through quickly. The network 30 may comprise a voltage divider connected to two constant-current devices and having tappings earthed through electronic switches which are individually controlled by the signals on lines 18, 19, 20. The output on line 33 is taken from a central tapping of the divider. The filter 70 includes a transistor arrangement for minimizing the effective resistance of a charging circuit of a capacitor, the temperature-sensitive network 40 having an identical transistor arrangement.