baber/WOPTO huggingface dataset:
Patent GB-490254-A (GB)
Title: Improvements in or relating to drilling apparatus
IPC: B23B45/00
Filed: 1937-04-19
Abstract: 490,254. Portable drilling-machines. BARTHOLOMEW, N. V. April 19, 1937, No. 11078. [Class 83 (iii)] A portable drilling device has the main drive mounted in a casing and carries a bevel wheel meshing with another bevel wheel provided with a helical gear which is mounted on a transverse spindle, the helical gear meshing with a second helical gear mounted on a spindle carrying a tool chuck and disposed transversely to the main shaft so that it can be rotated to set the tool at any required angle and then clamped. The driving shaft 4, rotatably mounted in ball bearings in a casing 3, carries at one end a bevel pinion meshing with a bevel gear 5 formed integral with a helical gear engaging a helical pinion 9 secured to a pin 10 carrying the tool chuck 13. The gear 5 is mounted by ball bearings, liners, &c. on a pin 7 having a wing nut 15 and a head engaging the casing 8a, which is rotatable about the axis of the pin, as shown dotted in the Figure, to adjust the tool 14 into different angular positions, the nut 15 securing the casing in set position. The device may be incorporated in a portable drilling-machine or, as shown, may be attached to a portable power-driven machine 17 by a casing 18 secured by a nut 20 and clamp 19. The device may be driven by a flexible or other shaft from a distance, and may be used for reaming, screw-driving, tapping, &c.
Patent GB-1458945-A (GB)
Title: Closed cycle heat exchange process
IPC: F25B9/00
Filed: 1975-03-18
Abstract: 1458945 Refrigerating NORTHFIELD FREEZING SYSTEMS Inc 18 March 1975 [18 March 1974] 11165/74 Heading F4H A closed cycle compression refrigeration or heat pump system using a mixture of refrigerants having different boiling points and being immiscible in the liquid phase, e.g. carbon dioxide and a haloalkane, comprises passing the mixture from a compressor 11 to a condenser 12 in which the higher boiling component is condensed, then to a heat exchange zone 13 in which the lower boiling component is condensed, forwarding the condensed refrigerants to a homogenizer 16 for blending and thereafter expanding the mixture in an expansion valve 14, converting the lower boiling component to a gaseous state in a closed evaporator 15 and finally evaporating the higher boiling component in the heat exchange zone 13 before recycling the mixture through the system.
Patent GB-1176006-A (GB)
Title: Improvements in or relating to Telecommunications Systems.
IPC: H04Q5/24
Filed: 1967-03-09
Abstract: 1,176,006. Party line systems. SIEMENS A.G. 9 March, 1967 [10 March, 1966], No. 11221/67. Heading H4K. In originating calls, X and Y parties sharing a single line circuit are identified at the exchange by taking the identity of the calling line circuit (which identity is the same as that of the X party) and by detecting which leg of the party line is earthed; in termination of calls the number of the X party giving direct access to the line circuit but the Y party number being converted to the associated X party number to obtain the line circuit and battery feed to the party line being reversed. If X parties are given even hundreds digits and the associated Y parties are given the next higher odd hundreds digits, the identity of a Y party is obtained from the identity of a line circuit by a simple translation field (Fig. 2, not shown) in which one-out-of-ten inputs are normally transmitted unchanged unless a Y party is concerned when the even inputs are switched to the next higher outputs. To identify a Y party number during call termination the Y parties are given characteristic thousands digits and a translator is provided (Fig. 3, not shown) which normally passes the one-out-of-ten hundreds marks unchanged unless the thousands and hundreds digit indicates a Y party when the translator switches the active odd inlet to the next lower odd outlet to obtain the corresponding X party digit and, consequently, the identity of the wanted line circuit. The occurrence of a translation produces a signal to reverse battery feed to the wanted line. The exchange uses separate originating and terminating registers and the translations are made in a common control circuit which includes a marker. When a calling party identity is fully established it is examined for priority before an outgoing call is permitted.
Patent GB-553096-A (GB)
Title: An improved single-anode or multi-anode rectifier with vapour discharge path
IPC: H01J13/16
Filed: 1941-09-03
Abstract: 553,096. Mercury arc rectifiers. AKT.-GES. BROWN, BOVERI & CIE. Sept. 3, 1941, No. 11267. Convention date, Sept. 23, 1940. [Class 39 (i)] In single or multi-anode vapour rectifiers the liquid cathode 2 is annular and the anodes 4, Fig. 1, or anodes 4a, 4b, Fig. 3, are arranged so that their projections lie within the cathode, so as to separate the arc discharge and the vapour flow. A screen 6 or screens 6a, 6b is or are placed round the anode or anodes ; the screens may carry control potentials or additional grids 10 may be used. A partition 9 is used to isolate the anodes. The anodes may be supported from the bottom of the rectifier as shown, or from the top. A funnel 8 catches condensed mercury from the top 7. Air or water cooling is provided. Specification 145,676, [Class 39 (i)], is referred to. Reference has been directed by the Comptroller to Specification 145,676, [Class 39 (i)].
Patent GB-243236-A (GB)
Title: Improvements in matrices for typographical machines
IPC: B41B11/00
Filed: 1925-04-30
Abstract: 243,236. Imray, O. Y., (Intertype Corporation). April 30, 1925. Matrices for type-bar-making machines are provided with fount-separating means in the form of grooves m<4>, Figs. 4, 5, and 6, which extend throughout the length of the matrices, and are of different width in different founts. one wall of the groove being notched or cut away so as to form permutations m<7>. The matrices may be used in connection with fount-separating mechanism of the kind described in Specification 241,815, in which the matrices, after distribution according to character, slide down a permuted rail 4, Fig. 7, from which they are released in position to fall into the proper magazine, the matrices being suspended at different levels owing to the varying width of their grooves, and being arrested in releasing position by shoulders 8 on the upper wall of the matrix-channel. Specification 14582/90 also is referred to.
Patent GB-166961-A (GB)
Title: Improvements in and relating to sulphur burning furnaces and the like
IPC: C01B17/54
Filed: 1920-04-23
Abstract: 166,961. Clayton, T. A. April 23, 1920. Sulphur burners.-In a sulphur-burning furnace or the like the air for combustion is supplied in divergent streams and the air supply nozzles are arranged to leave an unobstructed passage for the introduction of sulphur. Fig. 1 shows the nozzles arranged in series h, g in a horseshoeshaped pipe c which conforms to the shape of the furnace walls a and leaves a central passage for the sulphur introduced from a hopper in the furnace crown. The air streams are individually regulable by a hinged valve d<1>, operated by a lever l, the valve admitting air to either side of a partition c<1> which separates the nozzles h, g. In a modification, a straight pipe c, which is dispcsed in the lower part of the furnace and in proximity to a vertical furnace wall, is provided with divergent nozzles h, g, and regulation of the air streams is effected by a ported rotary sleeve. Partial and complete combustion are ensured by the lower and upper air streams respectively, and sublimation is consequently prevented.
Patent GB-150023-A (GB)
Title: Improved carburettor for internal combustion engines
IPC: F02M17/28
Filed: 1919-05-07
Abstract: 150,023. Graham, M. T. May 7, 1919. Spray carburettors for use with liquid hydrocarbons, such as benzol, petrol or heavier hydrocarbons, with or without acetylene or other gas comprise a liquid hydrocarbon chamber B separated from a mixing-chamber D by a diaphragm A fitted with a number of wick elements E preferably of cane. Above these is a second diaphragm A<1> with arcuate openings controlled by a shutter G and carrying another wick element E<1> to which the gas may be supplied by a pipe K and controlled by a needle valve L. The wick elements E may be provided with air inlet pipes H<1>, and air may also be admitted through ports I. Additional air may be supplied through a cowl M and adjustable passages N'. The shutter G may be actuated in conjunction with thethrottle valve H.
Patent GB-128042-A (GB)
Title: Improvements relating to Internal Combustion Engines.
Inventor: ERRIDGE ROBERT GEORGE
IPC: F02F1/30
Filed: 1918-07-13
Abstract: 128,042. Erridge, R. G. July 13, 1918. Two-stroke-cycle engines.-An engine using crank-case compression has a transfer passage e with a mechanically-controlled outlet valve d arranged as shown in the Figure. An inspection cover f is provided on the transfer passage.
Patent GB-746376-A (GB)
Title: A safety device for use on metal-working or like presses
IPC: F16P3/04
Filed: 1953-04-27
Abstract: 746,376. Machinery safety devices. UDAL, J. D., and WATSON, D. B. Mc- NEIL-. April 23, 1954 [April 27, 1953], No. 11532/53. Class 80(4) A safety device for hand, foot or otherwise operable presses comprises a rod a secured at one end to the movable slide b of the press and a pivoted catch e with an aperture f encircling the rod. The catch e is pivoted on a fixed part c and in the position shown in Fig. 1 acts to lock on to the rod a to prevent the descent of the slide. When the catch is raised by a cam h, by a connection k, n to the guard i, for example, into a horizontal position the rod a can pass freely through the aperture f of the catch to allow the slide to descend. Thus descent of the slide whilst the guard is open can be prevented. In modified arrangements a limited amount of movement of the slide is permitted with the guard open to allow work ejectors to operate but the full movement is prevented until the guard is closed.
Patent GB-1144221-A (GB)
Title: Electric analogue calculating apparatus for use with balancing machines
IPC: G01M1/22
Filed: 1966-03-16
Abstract: 1,144,221. Rotor balancing computer. LOSENHAUSENWERK DUSSELDORFER MASCHINENBAU A.G. 16 March, 1966 [2 April, 1965], No. 11559/66. Heading G4G. In a machine for balancing rotors carried on bearings, with transducers producing electric signals representing unbalance reactions in the bearing planes, an analog computing circuit (Fig. 1) comprising impedances R 11 , R 12 , R 13 , R 21 , R 22 , R 23  receives the outputs of bearing reaction transducers at terminals 1, 3 and a reference input voltage at terminal 2 to produce at terminals 4, 5, 6 a reference output voltage and balancing voltage signals representing matter to be removed, for equilibrium, in two predetermined balancing planes. The latter are displaced a and c from the respective bearing planes and b from each other where a + b + c = 1; while the impedances may be ohmic, or complex given by R e <SP>i</SP># having a similar angle at the working frequency. It is shown that where k is positive and <b/l, and a and c are positive. The network is proportioned to represent a specific rotor and assembled on a printed circuit panel, interchangeable by switching or plug and socket with other networks representing different rotors. A similar interchangeable network (Figs. 2, 3, not shown) represents rotors measurable and balanceable in three planes, e.g. divided universally jointed shafts.
Patent GB-828009-A (GB)
Title: Improvements relating to fold units for poultry
IPC: A01K31/18
Filed: 1957-04-10
Abstract: 828,009. Poultry houses. YATES, G. July 9, 1958 [April 10, 1957], No. 11659 /57. Class 5(2). A fold for poultry of the type comprising a closed portion and a wire-netted run, is so constructed that the size of the closed portion may be adjusted as required. According to one embodiment, the fold comprises a frame 1 mounted on skids 2, the longitudinal sides of the frame including spaced uprights 4. The boundary between the closed house and the run is marked by a partition 7 which may be removably secured between any pair of the frame members 4, the partition being formed with an opening 9 and a ventilating grille (not shown). A plurality of panels are provided for removable insertion between the frame members 4, some, 13, being covered with wire-netting and some being closed so that as the partition is moved the panels may be changed accordingly. The construction of the fold may be such that a covered panel may be superimposed on a panel 13 when the latter is in place. As shown in the drawing, one closed panel 12 is permanently hinged to the frame 1. Instead of providing a continuous frame 1 for the fold, the latter may be built up from a plurality of separate units, some closed and some covered with wire-netting.
Patent GB-1291422-A (GB)
Title: Process for the development of exposed photographic material containing silver halide
IPC: G03C5/29
Filed: 1970-03-11
Abstract: 1291422 Photographic development process CIBA-GEIGY AG 11 March 1970 [14 March 1969] 11669/70 Heading G2C Silver halide photographic material, especially X-ray film, is rapidly developed by treatment firstly, for at least 0À5 secs at from 10-80‹ C., with an alkali metal hydroxide solution at a concentration of 20-250 g per litre of developing at least 0À1 secs, at a temperature in the range 40-80‹ C. and at a pH of 3-10 with a developer solution containing 20-60 g per litre of developing agent e.g. pyrocatechol, para-methylaminophenol sulphate, 1-phenyl-3-pyrazolidone or hydroquinone. A further treatment by a second alkali metal hydroxide solution is desirable. The material is fixed or stabilized and washed and dried in known manner.
Patent GB-1469623-A (GB)
Title: Hollow pva fibres
IPC: B01D71/38
Filed: 1975-03-20
Abstract: 1469623 Hollow PVA fibres KURARAY CO Ltd 20 March 1975 [25 March 1974] 11692/75 Heading B5B Hollow fibres of polyvinyl alcohol (PVA) containing 0À001-5À0% based on PVA or its derivative, of boric acid or borate and having one hollow portion continuous in the direction of the fibre axis per cross-section of the fibre with a void content of 25-80% are formed by spinning an aqueous solution of the PVA or its derivative containing 0À2-5À0% PVA or its derivative into an alkaline dehydrating salt bath containing at least 0À1 mole/litre of alkali metal carbonate salt, drawing the coagulated fibre under conditions that will satisfy the following formula and (where #n s  is the double reactive index of the surface layer of the coagulated fibre, #n c  is the double refractive index of the central portion of the coagulated fibre, X is the parameter of the distance from the centre in the coagulated fibre and is in the range 0 to 1, the point X=0 indicating the centre and the point X=1 indicating the surface and #n x  is the double refractive index of the coagulated fibre at the point where the distance from the centre is X) and treating the fibres with an acid. The fibres may be heattreated after drying or may be subjected to chemical treatment.
Patent GB-1210525-A (GB)
Title: Improvements in or relating to staple cartridges for surgical stapling instruments
IPC: A61B17/072
Filed: 1967-10-06
Abstract: 1,210,525. Staple cartridge. UNITED STATES SURGICAL CORP. 6 Oct., 1967 [10 Oct., 1966; 23 June, 1967], No. 11717/70. Divided out of 1,210,522. Heading B4C. [Also in Division A5]  The subject matter of this Specification is substantially the same as that described in Specification 1,210,522 but the claims are concerned with a preassembled cartridge and ejector unit in which the pusher bars 37 are connected to a pusher head 36 whereby the pushes bars can be moved manually in the guideway 126.
Patent GB-495296-A (GB)
Title: Improvements in or relating to cigarette packing or wrapping machines
IPC: B65B19/04
Filed: 1937-10-29
Abstract: 495,296. Packeting-machines. CHALMERS, J. W., KIDD, D. B., and MOLINS MACHINE CO., Ltd. Oct. 29, 1937, No. 11762/38. Divided out of 495,275. [Class 94 (i)] In order to compress a batch of cigarettes before insertion into a container, it is conveyed to the inserting position in a pocket having walls moving in directions normal to one another. As shown, twenty cigarettes are fed into a compression chamber comprising fixed walls 13, 14 and movable walls 15, 16. At the beginning of the cycle, the walls are in the position shown, the wall 16 being in line with a fixed wall 27 parallel with the wall 14, and the wall 15 retracted from the wire of the fixed end 28 of the wall 27. The pocket is one of a series mounted on an intermittently rotating carrier, and, during the periods of rotation, fixed cams 20, 25 move the sides to compress the batch. The side 15 is first moved inwards until it is in line with the end 28, and the side 16 then moves the required distance towards the side 14. The batch may be thrust by a plunger through a mouth-piece into a packet as described in Specification 495.295. In a modified form, the compression chamber may be fixed and the sides actuated by movable cams. Specification 238,355, [Class 94 (i)], also is referred to.
Patent GB-818626-A (GB)
Title: Improvements in television in natural colours
IPC: H04N9/26
Filed: 1957-04-11
Abstract: 818,626. Television. RAIBOURN, P. April 11, 1957 [April 27, 1956], No. 11387/57. Class 40(3). In a colour television receiving system utilizing an N.T.S.C. type of signal and employing a single-gun " self-decoding " type of display tube, detrimental effects on the resolution in the reproduced picture, due to " blow-up " of the luminous spot caused by operating such tubes with heavy beam currents to achieve adequate brightness, is reduced by attenuating the low-frequency components of the video signals supplied to the tube since such components carry most of the energy in the signal and are therefore responsible for the excessive beam currents producing the " blow-up." In one embodiment (Fig. 1), the total received video signal (luminance and modulated chrominance sub-carrier signals) is supplied via amplifier 6 to the first control grid G1 of tube 4 whilst, to the second control grid G2, there is supplied the low-frequency components of the received video signals selected by means of a low-pass filter 8 and phase inverted in amplifier 10 the gains of the amplifiers 6 and 10 and the characteristic of filter 8 being so selected that the intensity of the beam of tube 4 varies with the frequency of the signals effective in modulating it in the receiver shown in Fig. 4. In a second embodiment, Fig. 2, the gain of amplifier 10, which in this case comprises a pentode 30, is varied directly as the amplitude of the low-frequency chrominance side-bands by supplying the suppressor grid of 30 with a signal derived by peak rectification in 26 of the output of a band-pass filter 24 which selects a narrow band of signals ( a few hundred kc/s.) centred about the chrominance subcarrier frequency of 3.58 Mc/s. With this arrangement the reduction in the low-frequency signals which are effective in modulating the beam of the tube varies from a limiting value (which may be zero) when black/white pictures are being reproduced to a relatively large value when saturated colours are being reproduced. In the embodiment of Fig. 4, the low-pass filter 8 of Fig. 1 is realized by the (high value) load resistor 32 of valve 30 together with associated stray capacities. In both embodiments and in accordance with conventional practice the colour switching grid 12 is supplied with a suitably phased switching voltage of sub-carrier frequency whilst the cathode K of the tubes 4 is supplied with a suitably phased gating signal having a frequency three times that of the subcarrier. Instead of employing the tube 4 itself to combine the outputs of amplifiers 6 and 10 (or 10<SP>1</SP>) separate combining circuits external to the tube may be employed.
Patent GB-892621-A (GB)
Title: Improvements in or relating to gear box units
IPC: B23B45/00
Filed: 1957-04-12
Abstract: 892,621. Variable-speed gears; toothed gearing. CLARK, A. N. April 14, 1958 [April 12, 1957], No. 12037/57. Classes 80 (1) and 80 (2). [Also in Group XXII] Countershaft gearing for use with a portable high-speed tool such as an electric or air-operated drill comprises an output shaft 15 having a squared end 16 on which a double dog clutch member 17 is mounted and slidable to the right to clutch the output shaft directly to an input shaft 12, or to the left to clutch a loose wheel 20 to the shaft 15 so that shaft 15 is driven at the reduced ratio from a gear 13 on the input shaft, gears 25, 26 on a lay shaft and the wheel 20. Shaft 12 is internally screw-threaded for connection to the chuck driving spindle of a power drill, and the casing of the unit has a split aperture 40 which fits over the nose of the drill and is fixed in position by a clamping screw. A handle 51 is provided on the casing to enable the unit to be steadied when in position on the drill and to prevent rotation of the casing. The clutch is actuated by a crank-pin engaging a groove 30 in the member 17 and carried by a shaft 31 fast with an operating lever 33. A spring 37 is secured to the casing and cooperates with stops 35, 36 and flats 39 formed on a boss of the lever to limit its movement and retain it in its end positions. In a modification the gear unit consists of a simple countershaft reduction gear, the double dog clutch being replaced by a thrust bearing interposed between gear 13 and the wheel 20 which is fast with the output shaft.
Patent GB-352563-A (GB)
Title: Improved construction of folding chair
IPC: A47C4/40
Filed: 1930-04-16
Abstract: 352,563. Folding chairs. MACKENZIE, H. E. and MACKENZIE, C. A., 175, Mornington Road, Leytonstone, London. April 16, 1930, No. 12049. [Class 52 (ii).] In an X-frame chair having rear supporting struts F connected by a cross bar H, which can be engaged in notches J in one of the frame members A, the said cross bar is secured at a distance from the ends of the struts which overlie the frame A and, in the event of the cross bar H slipping from its notches, are adapted to engage a second cross bar K lower down the frame.
Patent GB-295246-A (GB)
Title: Improvements in or relating to advertising devices
IPC: G09F13/00
Filed: 1927-05-06
Abstract: 295,246. Scheier, A. May 6, 1927. Models. - An advertising device shaped like an article of jewellery set with an imitation precious stone illuminated by a lamp which may be intermittent, has the imitation stone e removably mounted in a part of the setting. As applied to a model of a ring, the imitation stone 13 is mounted in a cap 12 detachably mounted on the base 11 of the setting The lamp 14 screws into the base of the setting and leads 18, 19 are connected to the hollow ring 10 and to an insulated contact 15, respectively. More than one lamp may be used.
Patent GB-489536-A (GB)
Title: Improvements in or relating to devices for peeling fruit, vegetables and the like
IPC: A47J17/02
Filed: 1938-04-23
Abstract: 489,536. Peeling fruit &c. MEYNARD, A. April 23, 1938, No. 12251. [Class 28 (ii)] A device for peeling fruit and vegetables of the kind having one or more cutting edges arranged parallel to a slot or slots in a concave metal blade, is characterized by the slot or slots being open at the outer end to permit peel to be removed therefrom by movement of the thumb of the hand holding the peeling-device. As shown, one slot 3 only is open, the other 3a being closed as usual. The device is widened at its base 2d to strengthen and prevent bending of the part 2. The cutting edges 4 are flat, i.e. are in one plane, to prevent rocking when the device is rubbed on a sharpening material. In modifications, both slots 3, 3a are open ended, the parts 2 are attached to the body of the device by riveting or welding, or one slot 3 only is provided, the opposite slot being replaced by a downwardly pressed embossment which serves as a resting point to prevent rocking when sharpening.