baber/WOPTO huggingface dataset:
Patent GB-293807-A (GB)
Title: Improvements in mechanical washers or scrubbers
IPC: B01D47/08
Filed: 1928-07-12
Abstract: 293,807. I. G. Farbenindustrie Akt.- Ges. July 12, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Scrubbers and washers.-A distributing disc, any number of which may be mounted side by side on one or several shafts, is shaped to form an annular cavity into which liquid a is introduced through a pipe c when the disc rotates, excess being discharged uniformly over a rim b. A rim-shaped body d fixed to the disc by radial arms is fitted to prevent liquid flowing from the inlet pipe from being immediately discharged and to cause mud separating in the cavity to be carried away with the liquid. A scattering rim e may be corrugated. Grooves may be provided in the washer walls to collect liquid draining from the upper half, and in the case of a vertical washer a counter-current effect is produced by conducting the collected liquid to the next lower disc.
Patent GB-1508078-A (GB)
Title: Apparatus for reactions between pulverulent and gaseous substances
IPC: H01M4/36
Filed: 1976-05-17
Abstract: 1508078 Solid/gas contact VARTA BATTERIE AG 17 May 1976 [17 May 1975] 20338/76 Addition to 1487513 Heading B1F Apparatus for carrying out reactions between pulverulent and gaseous substances comprises a gas-tight casing forming a reaction chamber, a vibratory helical conveyor disposed within the conveyor and to which the pulverulent and gaseous substances can be fed, and a laminar electrical heating device of expanded metal extending above the turn of the helical conveyor at a constant distance from the turns and having a shape conforming to that of the said turns.
Patent GB-1012168-A (GB)
Title: Improvements in or relating to pulse regenerating circuits having two stable conditions
IPC: H03K3/30
Filed: 1962-05-28
Abstract: 1,012,168. Transistor pulse circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 28, 1962 [May 31, 1961], No. 20430/62. Heading H3T. A pulse regenerating circuit comprises a bi-stable pair of amplifying elements, one of which has positive feedback via windings on a core of rectangular hysteresis loop material, activating pulses and the pulses to be regenerated being magnetically coupled to the core. Fig. 3 shows a PNP transistor 7, and an NPN transistor 22 reciprocably coupled via resistors 15, 16. The transistors are normally non-conductive. The core 1 is first brought to the positive remanence condition by an activating pulse from source 6. Each pulse from source 12, to be regenerated, tends to reverse the polarity of core 1, resulting in transistors 7, 22 becoming conductive. Regenerative feedback via windings 4, 5 results in the core being reversed in polarity. Both transistors remain conductive until the regenerated pulse is terminated by a reset pulse from source 13. In Fig. 2 (not shown) both transistors are of the PNP type and conduct alternately. Fig. 1 (not shown) relates to a known monostable pulse regenerator using only one transistor.
Patent GB-499341-A (GB)
Title: Improvements in or relating to electric resistance heating devices
IPC: F24H3/00
Filed: 1937-07-23
Abstract: 499,341. Heating by electric resistances. RHODIN, J. G. A. July 23, 1937, No. 20447. [Class 39 (iii)] An electric resistance heating device consists of a high conductivity cotton covered wire 1 wound on a tube 2 of. metal of high thermal conductivity such as copper, the winding being insulated with a varnish of the vinyl type such as polymerized vinyl acetate. The copper tube 2 is first varnished and the wire 1 is wound on the tube before the varnish is completely dry, and further coatings of varnish are added. In a modification, asbestos paper is impregnated with varnish and applied to the tube 2, and the wire 1 wound thereon, and covered with a further layer of varnished asbestos paper. A number of heating elements are mounted in a rectangular frame having side walls 4 and front and back panels 3 of metal covered inside with asbestos insulation. The tubes are supported at the base 10 in insulating rings 11 and at the upper end fit into circular openings 12 in a plate 13 of insulating material. A guard mesh 17 is provided at the top of the structure. Specification 271,600, [Class 37], is referred to.
Patent GB-1119881-A (GB)
Title: A method and device for machining work pieces
IPC: B24B35/00
Filed: 1965-05-14
Abstract: <PICT:1119881/C6-C7/1> A workpiece is subjected to precision machining by pressing a machining tool such as a grinding element against the workpiece and causing the tool to perform a longitudinal reciprocating motion while the workpiece is rotated and axially fed under the machining tool and simultaneously subjected to electrolytic erosion using the machining tool as a current connection to the workpiece.  In one arrangement Figs. 1, 2 (not shown), a cylindrical workpiece is rotated and advanced axially beneath a contacting grinding tool carried by a pressure-operated plunger which also bears insulating members carrying out-of-contact cathode elements flanking the tool circumferentially of the work, the tool and cathode elements being reciprocated axially of the work.  In another arrangement in which a rod workpiece 1a is supported between two oppositely rotating skewed cylinders so as to be rotated and advanced beneath a grinding tool 2a reciprocated axially of the work which passes both before and after said mechanical grinding action under a cathodic electrode 5a arranged between spring-pressed grinders 15, electrolyte being supplied at 9a Fig. 6 (not shown), down an inclined guide behind the electrode 5a (see Fig. 4).  In a further arrangement, a cylindrical workpiece is fed under a pair of units in tandem each formed by a cathodic electrode followed by a grinding tool which is reciprocated axially of the work to which it also makes the anodic connection, and thereafter passes beneath a tandem pair of axially reciprocable grinding tools Figs. 5 to 7 (not shown).  Instead of supporting the workpiece by a pair of cylinders, one of the cylinders may be replaced by a vertically movable rail with a vertically inclined face so as to locate the workpieces of different sizes properly relatively to the cathodic electrodes and grinding tools.  The electrolyzing D.C. voltage is held substantially constant by a bridge rectifier having its input controlled by a magnetic amplifier fed with voltages proportional to the work gap current fluctuations. The invention may be applied to short-stroke honing.  If applied to plunge cut operations in which a grinding tool engages the work during both an electrolytic stage and a subsequent purely mechanical machining stage, the rotary speed of the workpiece is increased during the second stage.
Patent GB-693296-A (GB)
Title: Improvements in check or non-return valves
Inventor: WEST ROBERT SCOTT
IPC: F16K15/06
Filed: 1950-08-19
Abstract: 693,296. Pipe joints. LAMONT & CO., Ltd., J. H. Aug. 8, 1951 [Aug. 19, 1950], No. 20596/50. Class 99 (i) [Also in Group XXIX] In a non-return valve (see Group XXIX) consisting of a valve disc 11 co-acting with a seat 10 at the end of a sleeve 9 and carried by a spindle 12 which is slidable in a perforated bridge 15, the outer end 9a of the sleeve is flared to serve as an adaptor and sealing ring for a pipe joint comprising a nipple 7, a flared pipe end, and a nut 8. lt is stated that the arrangement may be modified for coupling to a non-flared or straight pipe.
Patent GB-281011-A (GB)
Title: Improved means for printing or embossing on wooden containers and the like
IPC: B41F17/26
Filed: 1926-08-24
Abstract: 281,011. Hart, W. C. Aug. 24, 1926. Rotary machines; embossing-machines. - Designs, symbols, and the like are printed or indented in colours on wooden boxes &c. by means of a rotary machine to which the sides, or, boxes, are fed from an adjustable container 7 by means of a chain 24, which passes over a slotted table 5, and over a roller arranged under a printing or embossing roller 11. The printing or embossing roller 11, Fig. 8, is formed with a, series of apertures 11<a>, and the printing or embossing surface, or surfaces, is or are fixed to the roller 11 bv means of clamps secured in the apertures 11<a>, and rings 47, 48 guide the box sides during the printing operation. An adjustable front gate 35 prevents the feeding of more than one side at a time, and all the devices are driven by a motor arranged at the side of the roller 11. The roller 11 may be resiliently mounted, or a box side 7<a>, Fig. 7, may be mounted on a resiliently supported panel 50 below which springs 52 are provided to permit of the printing of boards of various thicknesses. Inking-apparatus.-The printing or embossing surfaces on the rollers 11 are supplied with ink by resilient distributing or transfer pads 46 on a cylinder 10 which receive the ink from ink-pads 39, Fig. 6, made of chamois, felt, or the like, on a cylinder 12 fitted with one or more internal reservoirs 36 corresponding to the different colours to be applied. The pads 39 are shaped to correspond with the areas of the printing-surfaces to be inked thereby, and they are held in position by clamps 42 which are slotted to permit of longitudinal adjustment relatively to the securing bolts 42 received by perforations 44 in the cylinder 12. The reservoirs 36 are filled through a stopper 37, and non-return valves 38 govern the flow of ink to the pads.
Patent GB-217094-A (GB)
Title: Improvements in gas cooking and grilling stoves
IPC: F24C3/08
Filed: 1923-08-17
Abstract: 217,094. Cheater, M. A. Aug. 17, 1923. Gas cooking-stoves.-A griller d is supported on a stand over a gas-ring n, which heats the oven of the griller, gas being suplied both to the grill burner and the gas ring from a common supply pipe h with separate control cocks f, l. The stand is formed of strip metal and comprises feet a with tranverse and lateral top members, the former having upturned lips (not shown) at the rear, which position the griller.
Patent GB-811307-A (GB)
Title: Improvements in multi-channel carrier signalling
IPC: H04J1/14
Filed: 1955-07-19
Abstract: 811,307. Mulitiplex systems. SKILLMAN & CO. PTY. Ltd., T. S. July 19, 1955[Aug. 11, 1954], No. 20906/55.Class 40 (4). In a multiplex system in which supervisory signals (e.g. dialling signals) are sent by modulating a carrier signal a low-pass filter is inserted between the D.C. side of the signalling system and the signalling modulator in order to prevent interference in the speech circuit or neighbouring circuits due to excessive amplitude in the side bands and carrier harmonics which might otherwise occur due to the too-rapid change in the D.C. signal applied to the modulator. In the embodiment shown in Fig. 1, speech from various channels modulate their respective carriers at M1 ...M3 ... feeding band-pass filters BPF1 ... BPF3 ... whose outputs are combined and fed via a low attenuator pad P and amplifier LA to line. The shunt arm of the pad P comprises the parallel-connected signal. ling circuits SC1 ... SC3 ... associated with the different channels. Each signalling circuit comprises a modulator SM arranged to connect the signalling source OSC to the pad P (and hence to line) or to a dummy load RB in accordance with the polarity of the D.C. applied over the signalling contact SC. The low-pass filter in the D.C. circuit comprises resistance R3 or R4 in combination with condenser C4. If desired a further filter section may be included by shunting resistances RM with a further condenser. The oscillator OSC may be the same as that which feeds the modulator M1 of the associated speech path. The invention may be applied to a V.F. multi-channel telegraph system. In this case a filter having a sharper cut-off is required and may be obtained by the insertion of a double-T condenser-resistance network, Fig. 3 (not shown), in front of a simple resistancecondenser filter of the type described above. A similar filter would be used in the case of a telephone system in which signalling is effected by the use of frequencies within the transmitted speech band.
Patent GB-223879-A (GB)
Title: Elevation adjusting device for machine guns
IPC: F41G1/48
Filed: 1924-09-04
Abstract: 223,879. Aktieselskabet Dansk Rekylriffel Syndikat. Oct. 25, 1923, [Convention date]. Sights and methods of sighting.-A clinometer a for ready attachment to machine guns for adjusting the angle of elevation comprises a pivoted spirit-level d, spring-pressed against a toothed cam h which is rotated by means of an arm k movable over a range scale o. Initial adjustments are effected by varying the thickness of the steed slide f which bears on the cam.
Patent GB-371702-A (GB)
Title: Improvements in or relating to cigarette cartons
IPC: B65D85/10
Filed: 1931-10-24
Abstract: 371,702. Cigarette &c. cartons. GORMAN, S., Glen Arthur, Duddingston, Edinburgh. Oct. 24, 1931, No. 20909. [Class 18.] In a drawer-andshell cigarette &c. carton provided with book or strip matches on the inside of one end of the drawer and covered with a flexible apron, the apron 12 is attached to the drawer so that it folds in the lengthwise direction o f the matches 9 and at one side thereof. As shown two match packs 9 are stapled to the end portion 7 of the drawer and the apron has a flap 12a which forms a lining for the drawer flap 8 and folds in front of the cigarettes &c. when the carton is closed.
Patent GB-1420785-A (GB)
Title: Photometers
IPC: G01J3/08
Filed: 1973-05-02
Abstract: 1420785 Spectrophotometers K T HOFFMANN 2 May 1973 [2 May 1972]  20911/73 Heading G2J A double-beam spectrophotometer e.g. for measuring colour comprises a mirror 1 mounted on the shaft of an electromagnetic drive system controlled by a circuit which delivers current pulses for switching the mirror between its two positions, the current pulses having an initial surge for accelerating the drive system and either (a) a constant current portion for producing constant angular deviation of the mirror at one of its two positions or (b) in the case where the drive system has end stops defining the two positions, a portion wherein the magnitude of the current is such as to produce a force on the driving system to urge it against the end stops. A rotatable shutter 11 is also provided. In one embodiment the beam switching mirror is actuated mechanically by means of a lever arm running on the cam face of a disc driven by a synchronous motor at mains frequency. In one embodiment, the mirror is attached to a galvanometer coil supplied with the appropriate electric currents. In another embodiment, the mirror is attached to a small permanent magnet which is situated between the poles of an electromagnet whose coils are provided with the appropriate currents.
Patent GB-1421817-A (GB)
Title: Nonvolatile storage element
IPC: H01L29/47
Filed: 1973-05-02
Abstract: 1421817 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 2 May 1973 [21 June 1972] 20963/73 Heading H1K A non-volatile bi-stable memory element is produced by passing appropriate currents through a pair of back-to-back Schottky diodes formed on a common semi-conductor substrate. In the embodiment the diodes are formed (see Fig. 2) in a junction isolated section of epitaxial layer as part of an integrated circuit as described in Specification 1,373,021. Application of a voltage of one polarity progressively increasing to 20 volts across the Schottky contacts 20, 22 switches the arrangement to a lower resistance condition in one quadrant of the V-I characteristic. Repetition of this process with the polarity reversed has the same effect on the characteristic in the opposite quadrant. With polarity again reversed passage of a current dissipating 300 mW. causes a switch to an even lower but stable resistance of about 200 # in both quadrants. In operation switching to a similar non-volatile, voltage symmetrical, but higher resistance (8 k #) condition is then achieved by application of a threshold voltage of one polarity, the device reverting to a. low resistance condition when a similar threshold voltage of opposite polarity is applied.
Patent GB-219823-A (GB)
Title: Improvements in and relating to thermionic devices
IPC: H01J21/02
Filed: 1923-08-17
Abstract: 219,823. Geisey, G. La V., and Brown, F. W. Aug. 17,1923. Vacuum tubes.-An anode is provided with a raised part or parts extending towards and substantially opposite and in register with an aperture or apertures in a central electrode. The apertures 28. Fig. 1, in the grid 19 are preferably of diamond shape so that the grid resembles a diamond latticed grill. The raised parts 29, Fig. 4, of the anode 18 are of similar shape. Two such grids and anodes are mounted on each side of a zig-zag filament, and are connected at the corners by conductors 26, 25 respectively, which are suspended at the top from an arbor 12 by strands 27. the lower corners of the grids and anodes being mounted on the stem 11 by means of wires 20.
Patent GB-209803-A (GB)
Abstract: 209,803. Time Recording Cash Register Co., Ltd., and Macbeth, M. Oct. 13, 1922. No Patent granted (Sealing fee not paid). Date and time printing.-In apparatus for recording the time of operation of a cash register or other apparatus, or for recording the time of an event, in which minute and hour levers connected to the time printing, perforating, &c. means coact with stepped snail cams on the minute and hour hand spindles, the hour-lever is mounted to be moved bodily in relation to the cam. in order that the transition of the point of contact of the hour-lever from one step to the next of the hour-cam takes place when the minute lever passes from the minimum to the maximum radius of the minute-cam. The hour-lever 11 is mounted on a pivot 13 in the bracket boss 14 of the minutelever 10 so as to be moved in a direction tangential to the hour cam 4 when the minute lever moves. The levers 10, 11 are connected respectively by rods 17, 18 to rocking arms 26, 25 fixed respectively to a shaft 23 and sleeve 24. The lever 21, by movement of which the time record is to be made, carries a tappet 30 that when moved first releases the bellcrank lever 45 which frees an arm on the shaft 23 and allows the rod 17 to be raised by a spring 29, and then actuates a second bell-crank lever 31 which frees a similar arm 28<x> on the sleeve 24 and allows the rod 18 to be raised by a spring 29. The lever 31 is restored by a spring 33. The amount of movement of the rods 17, 18 is determined by the position of the snail-cams 6, 4 so that the type segments &c. are moved to the correct position. The arms 10, 11 consist of a rigid member 35, Fig. 3, carrying a spring 37 having its end 38 turned in to form a contact-piece, that will be displaced if undue stress is applied. Smooth snail cams may be employed, and in this case the bodilv movement of the hour lever ensures its correct positioning with respect to the step in the cam at the end of each 12 hour period.
Patent GB-341392-A (GB)
Title: Improvements in machines for making fillers for egg and other cartons
IPC: B31B11/00
Filed: 1929-07-08
Abstract: 341,392. Feeding webs. BENOIT, L., 2614, West 50th Street, Chicago, U.S.A. July 8, 1929, No. 20991. [Class 100 (i).] The longitudinal and transverse strips of a filler for egg boxes are formed from webs A, B, Figs. 1, 1<a>, of cardboard &c. which are punched with notches and cut into strips, which are then assembled with the notches of transverse strips engaging the notches of the longitudinal strips. The web B and the slit web A are fed over the table 36 by reciprocating feed blocks E, E<1> adjustably connected to rocker arms actuated from a cam shaft and the block E, Fig. 9, is provided with inclined slots 47 which turn the slit web A from the horizontal into inclined planes, and with spring-pressed dogs 48 which enter the notches in the slit web and advance the strips a on the forward motion of the block; The feed block E<1> has similar dogs which engage the notches in the web B and feed it over the table 36, and both blocks are provided with spring- pressed detents which prevent backward movement of the webs.
Patent GB-644737-A (GB)
Title: Cable control mechanism for two cable operated implements in tandem
IPC: E02F3/64
Filed: 1948-08-09
Abstract: 644,737. Cable-winding apparatus. CATERPILLAR TRACTOR CO. Aug. 9, 1948, No. 20992. Convention date, June 4. [Class 78 (v)] [Also in Group XXI] A cable control system for a pair of implements coupled in series which directly operates the cable-controlled parts of the first implement and controls the operation of similar parts of the second implement. In the particular embodiment shown, the aprons 17, 171 and tailgates 19, 191 of scraper bowls 11, 12 are controlled by a cable 21 attached to a winch 31 and thence passing over sliding and fixed sheave blocks 35, 36, 41 and 42 to a cable drum 28. A second cable 24 also secured to this drum passes over a similar pulley system positioned on the second scraper bowl 12 and is dead-ended thereon. The aprons 17, 17<1> are attached to the sliding sheave blocks 35, 35<1> respectively, and sheave blocks 41, 411 are secured to the tailgates 19, 19<1>. A hydraulic brake and latch system permits either the drum 28 to be free and the tailgate 19 and sheave blocks 35 to be locked in position or vice versa. If the latter, when dumping, rotation of the winch 31 to wind in the cable 21 causes the apron 17 to open until it meets a stop as the sheave block 35 approaches the block 36 and then the gate 19 moves forward against the return springs 43 to eject the spoil from the bowl 11. On freeing the cable drum 28, further winding-in of the cable 21 causes rotation of the drum 28 and a corresponding sequence of operations occurs on the scraper bowl 12 due to the cable 24. As to which bowl is filled or emptied first is determined by the setting of the control valve of the hydraulic system which also controls a similar cable system drum 33, cable 22, sheave blocks 50, 51, drum 27, cable 25 and blocks 50, 501 by which the bowls may be raised or lowered.
Patent GB-165468-A (GB)
Title: Improvements in pistons and piston valves
IPC: F16J1/00
Filed: 1919-08-27
Abstract: 165,468. Allen, R. Aug. 27, 1919. Pistons.-In a fluid-pressure engine with cam rod.-In pistons or piston valves of the kind in which segmental packing-rings are expanded by springs so located that they exert both a radial and an axial pressure, the segmental rings are formed with inclined raised or recessed parts disposed parallel to a radial line through the centre of the segment, for the accommodation of the springs. A piston for an internal-combustion engine, Fig. 1, consists of inner and outer parts a, b, which 'may be made of steel and aluminium respectively, with bushes e and case-hardened linings f. Segmental packing rings g, Fig. 13, have inclined projections g<3> bearing on washers or plungers h of springs d<1>. The ends of the segments g are undercut to accommodate choke pieces g<1>, located in radial grooves g<2> in the head a<1>, forced radially by springs d. The springs d, d<1> are located in pockets c, c<1>, and may be made in short lengths to permit of their withdrawal without dismantling the piston. A scraper ring b<3> is located in a groove at the bottom of the piston. A steam piston, Fig. 8, consists of a boss k with webs k<1> and ring j with annular recesses to accommodate packing-segments g and choke-pieces g<1>, and plates i. The piston is held together by bolts m passing through bosses k<2> in the webs k<1> and nuts n, n<1>. The packing-rings g and choke-pieces g<1> are formed with recesses g<4> to seat the spring plungers h. In a modification, the webs k<1> are forged integrally with the piston-rod and the plates i are secured by countersunk nuts.