baber/WOPTO huggingface dataset:
Patent GB-1211221-A (GB)
Title: Method of autoclaving articles
Inventor: PIKE JOHN WILLIAM
IPC: B01J3/04
Filed: 1967-01-20
Abstract: 1,211,221. Steam curing in autoclaves. STRUTHERS SCIENTIFIC & INTERNATIONAL CORP. 15 Jan., 1968 [20 Jan., 1967], No. 3179/67. Heading B1X. In a process of steam curing concrete building blocks in an autoclave 2, the blocks are supported in the autoclave 2 out of contact with 'a reservoir of water in the autoclave, oil from tank 24 is heated in heater (16) and is then passed via line 26 through coil 8 to heat the water in autoclave 2 to develop and maintain steam pressure in the autoclave 2, at least some of the heated oil being diverted via line 112 to heating tank 100 to heat water for use in subsequent autoclaving cycles, steam is then exhausted through equalizer valve 34 into condensate storage tank 30, the water from autoclave 2 is pumped by pump 36 into the tank 30, further steam is exhausted through valve (54) into muffler tunnel 58, door 4 is opened and the blocks removed. The heating tank 100 may alternatively be used for storing hot water and steam from the autoclave 2 in place of tank 30.
Patent GB-1241149-A (GB)
Title: Method for the treatment of lignocellulosic materials
Inventor: WILLIAMS TREVOR JOHN
IPC: D21D1/30
Filed: 1970-01-22
Abstract: 1,241,149. Papermaking. ANGLO PAPER PRODUCTS Ltd. 22 Jan., 1970, No. 3272/70. Addition to 1,197,450. Heading D2A. A method of fiberising lignocellulosic material comprises feeding the material into a closed chamber, mechanically abrading the material in the chamber by means of a disc refiner under a power input of 15-30 horsepower-days per ton in the presence of water, and under a pressure of 20-40 p.s.i.g. The atmosphere in the chamber is inert to the material under the operating conditions and may be of steam or air.
Patent GB-1182541-A (GB)
Title: Automatic Pilots for Aircraft
IPC: G05D1/04
Filed: 1968-01-22
Abstract: 1,182,541. Automatic steering control. FLUGGERATEWERK BODENSEE G.m.b.H. Jan. 22, 1968 [Feb. 2, 1967], No.3290/68. Heading G3R. The attitude of an aircraft is stabilized about its yaw axis by a yaw rate responsive gyro controlling the ailerons and turns are produced by means applying torque to precess the gyro. In Fig. 2, the attitude of an aircraft during low speed flight is stabilized about the pitch, yaw and roll axes by pneumatically restrained integrating rate of turn gyros 60, 62, 64 which respectively respond to movements about those axes and control servomotors 48, 50, 52 operating the elevators, rudder and ailerons. Signals from rate generators 42, 44, 46 associated with each gyro are combined with the signals from position pick-offs 33, 34, 35. Turns are produced by a signal generator 80 which applies signals through a resolver 86 positioned by a gyro vertical so that signals dependent on the attitude of the aircraft relative to the earth are applied to torque motors 54, 56 associated with pitch and yaw gyros 60, 62 to alter the stabilized attitudes about the pitch and yaw axes to produce the turn. Signals from turn generator 80 are also applied through a differentiating condenser 82 to a torque motor 58 associated with the roll gyro 64 to cause initial banking. Thereafter, signals from a linear accelerometer 74, responsive to side-slip, applied through a resistor 76 directly to the aileron control channel and through a resistor 78 to torque motor 58, ensure maintenance of a properly co-ordinated turn. Signals from an altimeter 88 applied through resolver 86 directly to the elevator control channel and to torque motor 54, ensure maintenance of a constant altitude. For higher speeds of flight a switch 72 is moved to the other position shown, either manually or automatically with retraction of the landing gear, so that the signals from yaw gyro 62 are applied to control the ailerons instead of the rudder. The latter may then be controlled by rate of turn signals from generator 44. Under these conditions, signals from linear accelerometer 74 are disconnected and a further condenser 94 is connected in parallel with condenser 82 to increase banking.
Patent GB-333190-A (GB)
Title: Improvements in or relating to furnaces
IPC: F23M5/06
Filed: 1929-01-31
Abstract: 333,190. Derewianko, M. Jan. 31, 1929. Baffles.-In furnaces of the locomotive type a grid-like baffle 4 is arranged above the front end of the arch 3 and extends substantially across the whole width of the fire-box, the gas passages 15 being longitudinal or inclined to the longitudinal axis of the furnace. A transverse passage 7 is provided between the baffle and the top of the furnace. A transverse aperture 13 in the arch 3 and an aperture 8 between the arch and the fire-bridge 1 serve for the removal of flue dust. Behind the fire-bridge is fitted a baffle 2 having gas passages 10, 11 and held in place by fireclay blocks 5 fixed by screws taking in stay bolt holes in the walls of the firebox. Flaps 17, 18 allow of the removal of flue dust. Fig. 7 shows in plan a modification in which the baffle 4 consists of two inclined portions so that the axes of the gas passages d<1>, d<2>, d' intersect behind the baffle. Brickwork f at the sides of the fire-box maintains the baffle in position upon the arch.
Patent GB-336523-A (GB)
Title: Pipe coupling
IPC: F16L19/02
Filed: 1930-01-31
Abstract: 336,523. United States Union Corporation, (Assignees of Sears, R. B.). Nov. 27, 1929, [Convention date]. Butt joints. -- Fluidtightness between two pipes having end members 1, 2 coupled by a nut 4 is secured by a lead &c. packing ring 8 which is located within a groove or annular channel 7 in the face of the member 2 and is compressed by an annular rib 9 on the member 1. The rib 9 is of substantially the same diameter and width as the channel 7, and the outer face of the rib and the bottom of the channel are both formed with concentric ridges 11, 13 respectively which are pressed into the packing ring when the parts are coupled together.
Patent GB-667438-A (GB)
Title: Pad for steam pressing purposes
IPC: D06F83/00
Filed: 1950-02-09
Abstract: 667,438. Pile fabrics made of wire. WEBER, A. Feb. 9,1950 [Feb. 14, 1949], No. 3356/50. Class 142(iv) [Also in Group VIII], A pad for use in steam-pressing machines comprises a system of tacks or teeth carried by a body portion of the pad, the body portion being formed of metal gauze a and the tacks or teeth being formed by the projecting ends of wire elements b introduced into the metal gauze and bent over on both sides (as at b<SP>1</SP> and b<SP>2</SP>) so as to prevent lateral shifting of the tacks or teeth.
Patent GB-326939-A (GB)
Title: Improvements in or relating to damping mechanism of rotary printing machines
IPC: B41F7/26
Filed: 1929-02-01
Abstract: 326,939. Linotype & Machinery, Ltd., and Dowson, R. Feb. 1, 1929. Damping-apparatus for lithographic and like machines.-In rotary printing-machines, a connection is provided between the tripping- devices for the damping-mechanism and the tripping-devices for the printing-cylinders, which is independent-of the connections between the latter and the other organs of the machine, and is adjustable to permit independent operation of the tripping-devices for the damping- mechanism without disconnecting it from the cylinder-tripping mechanism. The damping-mechanism 5-10, Fig. 1, is pivotally mounted on a rock shaft 11 extending across the machine so that it can be moved into and out of contact with the plate cylinder 2, without interfering with the operation of the tripping- devices, by means of hand-lever connections 12- 15. A rod 22, connected with the cylinder-tripping mechanism, is pivoted to a lever 31 formed with a segmental flange provided with three holes for adjustment of a loosely pivoted arm 37 into any of three positions. The arm 37 co-operates with a check-lever 21 for tripping the damping- mechanism 5-10 through a cam-actuated arm 17 secured to the rock shaft 11. The arm 17 carries an axially adjustable roller 18 engaging with a cam 19 of conical form so that the period of dwell between the; feed-roller 8 and the fountain roller 9 can be varied. When the arm 37 is engaged in the lowermost hole of the flanged lever 31, as shown in Fig. 4, the water motion remains operative in any position of the impression cylinder, and when the flanged lever 31 engages with the uppermost hole, the water motion remains inoperative in any position of the impression cylinder. In the normal position shown in Fig. 1, the water motion is thrown into and out of operation with the untripping and tripping of the impression cylinder.
Patent GB-1071700-A (GB)
Title: Panel interconnecting member
IPC: A47B47/00
Filed: 1966-01-26
Abstract: A connecting member (C) for connecting together the corners of panels (P) comprises a plurality of pairs of parallel walls B disposed in different planes and defining pockets A into which the panels fit. The panels may be secured in the pockets by adhesive or by screws passing through holes H in the walls B.  The walls B are interconnected by mutually perpendicular intersecting walls. The gaps between adjacent edges of the panels are sealed by elongated members (S), each of which comprises four mutually perpendicular grooves (G) for receiving the edges of the panel and a pin (D) adapted to fit into a socket (E) on the connecting member (C).
Patent GB-1444682-A (GB)
Title: Analogue to digital signal conversion
IPC: G01L1/22
Filed: 1974-01-25
Abstract: 1444682 Analogue-to-digital conversion W & T AVERY Ltd 23 Jan 1975 [25 Jan 1974] 03567/74 Heading H3H In a dual ramp analogue-to-digital converter, error due to offset and drift is reduced by reversing the polarity of the input analogue and reference voltages for alternate conversion cycles and averaging the moduli of the digital outputs. The analogue input may be from a strain gauge bridge circuit. Suitably,
Patent GB-667603-A (GB)
Title: A billiards chalk pocket container
IPC: A63D15/16
Filed: 1950-02-13
Abstract: 667,603. Boxes. WILTSHIRE. J. March 27, 1950 [Feb. 13, 1950], No. 3570/50. Class 18 [Also in Group XV] A chalk-holder for billiards comprises a box-like casing 10 for the chalk 18 having a vertical thickened part 15 in one wall in which is a set-screw 16 for clamping the chalk and a plunger 26 urged by a spring 29 against either the face 21b or the face 21a of a hinge element 21 to hold a lid 20 in the closed or open position. The lid 20 overlaps the front of the box to facilitate opening.
Patent GB-234750-A (GB)
Title: A new or improved apparatus for assisting the blind to write
IPC: G09B21/00
Filed: 1925-02-09
Abstract: 234,750. Pigot, J, P. M., Pigot, T. E., and Pigot, J. H. Feb. 9, 1925. Facilitating writing.-An appliance for facilitating writing by the blind comprises a rectangular frame provided with a cross-piece which is attached at its ends to U-shaped travellers 6 embracing the edges of the longitudinal sides 1 of the frame and arranged to be independently adjustable thereon, springs 12 being provided on the travellers to co-operate with equally spaced notches 11 on the sides for holding the travellers in a set position. Each end of the cross-piece 7 is provided with an adjustable finger touch 8 to indicate the proximity of the writer's hand to the sides of the paper, means such as clamping screws 14 being provided to hold the outer ends of the finger touches within slotted bridge pieces 13 on the travellers 6. The inner ends of the finger touches are provided with claws 9 bearing against the edge of the cross-piece, which is graduated to facilitate the setting of the finger touches. The paper to be written upon is placed on a flat tablet 4 which is supported on webs at the inner corners of the frame. The correct alignment of the paper is assisted by a stop or stops disposed on the inner edge of the upper transverse side 2 of the frame, beneath a spring clamp 15 which holds the paper in position. Stops on the underside of the frame near the upper edge provide means for ensuring that the cross-piece 7 is initially horizontal, from which position it may be set by noting the audible clicks as the upper ends of the springs 12 move over the notches 11 in the sides. The frame may be modified by providing a permanent interior face for supporting the paper.
Patent GB-762511-A (GB)
Title: Improvements relating to electric protective devices for mechanical contact convertors
IPC: H02H7/10
Filed: 1954-02-08
Abstract: 762,511. Rectifiers. LICENTIA PATENTVERWALTUNGS GES. Feb. 8,1954 [Feb. 10, 1953; July 1, 1953], No. 3617/54. Class 38 (2). [Also in Group XXXVII] A mechanical contact rectifier equipped with commutating reactors and a short-circuiting protective device has the latter device controlled by means responsive to changes in the magnitude or phase position of the supply voltage and comprising three single-phase transformers 1 with star-connected primaries connected to the supply R, S, T, and centre-tapped secondary windings connected through auxiliary rectifiers 2 to a quick-acting relay 4 which, when operated, triggers the short-circuiting device. The rectifiers 2 have a six-phase output, as shown in Fig. 2, and on failure of one phase such as IV, the resulting drop in voltage causes release of relay 4. To produce a greater drop-in voltage on failure of a phase, saturable reactors may be included in the leads to the centre-tappings of the transformer secondaries (Fig. 3, not shown).
Patent GB-1461034-A (GB)
Title: Method of vapour deposition
IPC: H01L23/485
Filed: 1975-01-28
Abstract: 1461034 Coating by vapour deposition RCA CORPORATION 28 Jan 1975 [4 Feb 1974]  3734/75 Heading C7F In the vapour deposition of a material, e.g. Al, on a substrate 28 of e.g. Si, the material 38 is evaporated, the shutter 26 opened, the material deposited, the shutter closed, the substrate heated (300C) e.g. by a radiant heater 22, and a further layer of the material deposited from another source. The thickness of the coating may be measured by a quartz crystal.
Patent GB-1130274-A (GB)
Title: Improvements in or relating to strain sensitive bridges and the fabrication thereof
Inventor: STEDMAN CECIL KINGSLEY
IPC: G01L1/22
Filed: 1967-01-25
Abstract: 1,130,274. Measuring strain electrically. STATHAM INSTRUMENTS Inc. Jan.25, 1967, No.3740/67. Heading G1N. A strain gauge comprises four arms R1, R2, R3, R4 formed by depositing by vacuum electro-deposition a film of chromium-silicon alloy on either a glass or quartz substrate or a stainless steel substrate M which is insulated by a film of silicon monoxide. Three bridge terminals are formed by ears 16, 18, 20 to which a layer of indium is bonded. The remaining two arms are linked by a vacuum electro-deposited patch of chromium 22 which has a thermal coefficient of resistance different from that of the bridge arms so that a point on its surface can be found which minimizes the thermal zero shift of the bridge. The remaining connection is made to this point. In a modification, Fig. 3 (not shown) two such compensating patches are provided at opposed apices of the bridge.
Patent GB-1021425-A (GB)
Title: Improvements in or relating to electrical power control devices and methods
IPC: G05D23/22
Filed: 1962-01-31
Abstract: 1, 021, 425. Automatic temperature control systems. WEST INSTRUMENTS Ltd., E. L. CLARKE and A. R. OWENS. Jan. 30,1963 [Jan. 31, 1962], No. 3769/62. Heading G3R. [Also in Divisions H2 and H3] The temperature of a furnace is automatically controlled by supplying its heater 4 with power in periods each comprising an integral number of complete half cycles of the source 2 passed by reverse-parallel-connected silicon controlled rectifiers 6, 6<SP>1</SP>. The output from a thermo-couple/ potentiometer comparator circuit 10a-1, 10a-2, is passed through an amplifier 16 to charge a capacitor 10b at a rate dependent on the power requirements of the heater 4. Superimposed on this capacitor voltage are pulses coincident with source waveform zeros and produced by a circuit comprising resistors 8a, 8c, Zener diode 8b and an inductance 8d. Upon firing of rectifier 6 by the resultant signal, capacitor 10b discharges assisted by the induced voltage in a transformer 20 caused by the heater current, rectifier 6<SP>1</SP> being fired by a pulse developed across an inductance 23 upon termination of conduction of rectifier 6. Further conduction is determined by the state of charge of capacitor 10b after each complete cycle, it being noted that rectifier 6 is always fired at a waveform zero by making the amplitude of the pulses such that the peak of each trigger pulse reaches at least to the base of the next. Thus the minimum pulse amplitude is determined by the maximum slope of the capacitor voltage characteristic that can occur. In a modification, Fig. 5 (not shown) the pulse generating circuit is connected directly across the source 2, the inductance 8d forming the primary of a transformer whose secondary is in series with the capacitor 10b. In another modification, Fig. 6 (not shown) the pulses are generated in a separate circuit using a capacitor-resistor type differentiating network 24, 26, and appropriate pulses are used to make momentarily conductive a transistor 22<SP>1</SP> which applies the capacitor voltage to an amplifying transistor 30<SP>1</SP> connected to the control electrode of rectifier 6 through a transformer 32. Current flow through the heater 4 is used to prevent recharge of the capacitor 10b until the rectifier 6 has finished conducting, a transformer/rectifierbridge network 37, 39 being provided for this purpose. A basic arrangement using one silicon controlled rectifier is described (see Division H2).
Patent GB-708117-A (GB)
Title: Improvements relating to domestic fireplaces
IPC: F24B1/193
Filed: 1951-02-16
Abstract: 708,117. Grates. BAXENDALE, R., and BAXENDALE, J. Jan. 11, 1952 [Feb. 16, 1951], No. 3790/51. Class 126 In a domestic fireplace of the kind having a grate above a sunken ashpit, and an air supply to the space below the grate the grate is divided along a line c running from the back to the front, into two halves a, b, each half being flat in front and upwardly inclined at the back. Each half has a downwardly projecting strip g beneath its sloping part, near its rear and outside edges, the lower edge of which is level with the under surface of the front flat part of the grate. When the grate is to be used in a fireplace with a boiler with a ledge at a higher level at the back it may be formed without the strip g the back edge of the grate resting on the ledge.
Patent GB-283356-A (GB)
Title: Improvements in or relating to water heaters
IPC: F24H1/28
Filed: 1927-02-10
Abstract: 283,356. Stenfors, F. I. E., and Ahlgren, E. W. Feb. 10, 1927. Closed solid-fuel stoves; grates.-The firetube 2 of a hot-water boiler is lined with removable plates having ribbed surfaces 30 for promoting combustion of the fuel adjacent the tube. The firetube communicates through a smokebox 5 and tubes 3 with a soot chamber 8 having a dampercontrolled outlet 10. The firegrate comprises parts 13 being slidably supported by the part 14 which is pivoted to a shaft 21 and supported by a bolt. 16 at its front end.
Patent GB-233785-A (GB)
Title: An improved method and system for raising and lowering merchandise
IPC: B66C1/16
Filed: 1924-02-15
Abstract: 233,785. Elliott, H. Feb. 15, 1924. Suspended vehicles.-Apparatus particularly suitable for loading and unloading ships or shelves comprises a carrier or cradle c consisting of a series of hinged sections, which is raised and lowered in parallel loops of hoisting ropes a wound on drums b, and runs by gravity down an inclined ropeway a<1> forming an extension of the hoisting ropes. The cradle may be provided with wheels k, Fig. 8, for running automatically on to rails or on the ground at the lower end of the ropeway. The apparatus may be used for transporting simply the cradle being raised in the loop sufficiently to run by gravity. As shown in Fig. 3 the cradle is formed of a number of sections d connected by hinges at e. Each section d is provided with rollers &c. d' arranged in semicircular channels d' and running on the ropes a. The lower end of the inclined ropeway is supported by arms i on standards h, Fig. 8, the arms entering recesses in the cradle and guiding the cradle on to the fixed rails.
Patent GB-196730-A (GB)
Title: Improvements in or relating to box file clips
IPC: B42F13/00
Filed: 1922-02-10
Abstract: 196,730. Burton, H., and Burton, C. F. Feb. 10, 1922. Post files; clamping-devices; attaching files to covers and supports.-In a box file having two spaced filing loops 1 secured to the box by the attachment plate 4 of a spring clip 7, the portions 3 of the loops which lie against the box are provided with lateral extensions, projections, or flattened parts to prevent the loops from turning. In one form, zigzag portions 5 are provided on the loops near the plate 4, or the wire may be formed with flattened portions engaging correspondingly-shaped grooves in the plate 4. The ends 2 of each loop are detachably connected.
Patent GB-991149-A (GB)
Title: A process and apparatus for steel manufacture
IPC: C21C5/42
Filed: 1962-10-23
Abstract: Pig iron contained in a vessel 1 is refined first by placing a refractory lined hood 9 on the vessel and blowing with a lance 11 and then replacing the hood by a refractory lined cover 12 and electrically refining by means of electrodes 14.  As illustrated in Fig. 1, the vessel 1 is filled with molten pig iron at a station 8 and is run along rails 3 on a bogie 2 to a station 7 where the hood 9 is lowered on to it by means of fluid operated jacks 10 and the lance 11 is used for refining with commercial oxygen, waste gases being led off through a stack 17.  After a time the hood 9 is raised and the vessel 1 is returned to the station 8, the cover 12 is lowered on to it by lifting means (not shown), and the melt is then further refined using the electrodes 14 supplied from a transformer. Alloying metals may be added and a port 6 may be used for slagging.  As shown in Figs. 15 and 19 the port 6 is closed during blowing with the lance 11 by a door 94 running in guides 95 and operated by a motor 106 and a rope 100. During electrical refining a door <PICT:0991149/C6-C7/1> <PICT:0991149/C6-C7/2> <PICT:0991149/C6-C7/3> <PICT:0991149/C6-C7/4> <PICT:0991149/C6-C7/5> 107 is used which closely fits the walls of the port 6 and comprises a refractory block 108 held in a metal frame 107 and having an extension 110 by which it is placed in or withdrawn from the port.  As the vessel lining 80 erodes, larger doors of this type are used which seat closer to the outside of the port 6 than that illustrated.  When the hood 9 is worn it is lifted by a jack 18, Fig. 1, through a beam 21 which is then swung through 180 degrees to bring a second hood 91 into service and is then lowered.  The vessel 1 is carried by toothed rockers 4 on its bogie to allow the vessel to be tilted to discharge metal through a refractory lined spout 5.  The hole in the vessel 1 communicating with the spout is closed by a refractory stopper 82, Fig. 12, held in place by a counterweighted lever 83, a wedge 87 being placed between the lever 83 and the stopper 82.  In a modification, Figs. 4-6 (not shown), the hood 9 is moved to the station 7 on a bogie which is also used for bringing up a new hood. In another embodiment, Figs. 7 and 8 (not shown), the hood 9 and cover 12 are mounted on radial arms of a shaft which is lifted and rotated to change from one type of refining to the other. In a further embodiment, Figs. 9 and 10 (not shown), the hood and cover are mounted on counterweighted arms on separate shafts. Fig. 11 shows a sealing joint between the hood or cover and the vessel 1. Bolted to the shell of the latter is a metal ring 65 which has a groove 67 filled with sand and into which projects an annular rib 73 of a ring 71 bolted to the shell 70 of the hood or cover.  An internal ring 74 supports the refractory lining of the hood or cover.