baber/WOPTO huggingface dataset:
Patent GB-524030-A (GB)
Title: Improvements in or relating to self-feeding mops
IPC: A47L13/144
Filed: 1939-01-19
Abstract: 524,030. Reservoir mops. AXTEN, C. J., and LONG, A. T. Jan. 19, 1939, No. 1928. [Class 19] A reservoir mop comprises a perforated head 2 attached to a hollow handle 1 and a ring frame supporting a detachable mop 7 and surrounding the head 2. The frame is attached to the handle above the head 2. One or more hand grips 6 are provided on.the handle 1.
Patent GB-981993-A (GB)
Title: Electrolytic erosion
IPC: B23H3/00
Filed: 1963-01-16
Abstract: <PICT:0981993/C6-C7/1> <PICT:0981993/C6-C7/2> <PICT:0981993/C6-C7/3> <PICT:0981993/C6-C7/4> <PICT:0981993/C6-C7/5> Electrolytic erosion, e.g. shaping, die sinking, cutting, turning, grinding, milling and drilling, is performed by a method employing two electrodes connected to a source of periodically reversing electric current and one or more intermediate bipolar electrodes. Fig. 1 shows electrode tools 30, 31 which are connected to a source of A.C. or of periodically reversed D.C. and which can be advanced towards either side of a workpiece B thereby making it a bipolar electrode.  Electrolyte is passed between the work and tools at high speed.  Each side of the workpiece is eroded during the periods whilst it is anodic.  Further embodiments are illustrated in Figs. 5-8.  Fig. 5 shows sinking of die cavities using unipolar electrodes 110, 113 and bipolar electrodes 105-106, 111-112, 107-108. In Fig. 6, tools 120, 121 are advanced towards a rotating bipolar work disc 122 for a turning operation. Electrolyte may be supplied through nozzles 123, 124 or through hollow tools.  Fig. 7 shows current supply to workpieces 126, 127 which are advanced towards a bipolar disc electrode 128 for cutting.  Fig. 8 shows simultaneous drilling of two holes in a workpiece 135 by tubular tool electrodes 133, 134 through which electrolyte is pumped.  Returning to Fig. 1, the electrodes 30, 31 may be masked at portions beyond their working faces.  They are advanced by independently controlled motors 58, 71, the advance being limited by switches 61, 63 which either switch off or reverse the motors.  Both tool electrodes may be advanced simultaneously or each may be advanced only when it is a cathode. The electrodes may be advanced at different rates and if one completes its work before the other its advance is stopped and the current reversing cycle changed so that the tool that has completed the work is always the anode. Electrolyte flow and pressure are controlled by a variable speed motor 76 and valves 86, 87, 94, 95.  Specified conditions are a workpiece and electrolyte of Mo or W and aqueous NaOH, or Fe and aqueous NaCl; an average erosion rate of 0.006 inch/minute; current reversal frequency of 3 cycles/minute to 60 cycles/second; electrolyte speed of 20-250 feet/minute at a pressure of at least 50 p.s.i.g.; electrode-workpiece gap of 0.030 inch; current density of 50 amps./sq. inch in the zones where the tool most closely approaches the work and a total voltage across the cell of 15 volts.
Patent GB-565781-A (GB)
Title: Improvements in or relating to draining apparatus
IPC: D06F1/00
Filed: 1943-02-06
Abstract: 565,781. Draining-appliances. STEVENS, E. Feb. 6, 1943, No. 1991. [Class 138 (ii)] [Also in Group VI] A draining device which can be stood over a hopper comprises a container 1 with bottom 3 sloping down to the front at which a drainage slit 4 is provided with a sloping partition 5 to keep the articles from blocking the outlet slit. Handles 7 are provided.
Patent GB-243923-A (GB)
Title: Improvements in or relating to methods of and means for promoting the circulation ofwater in water-tube boilers
IPC: F22D7/08
Filed: 1925-01-22
Abstract: 243,923. Mansel, R. S. Jan. 22, 1925. Water circulation, auxiliary apparatus for promoting; partitions in water space.- An artificial head of water or supply of water under pressure at the inlet ends of the down headers of a watertube boiler is produced by fitting rotary impellers or other circulator devices in the steam drum in conjunction with partitions extending across the drum. A rotary impeller g, Fig. 1, in a compartment e formed in the steam drum c by partitions d produce a head of water over the inlet to the down header b. The partitions have apertures fitted with valves k opening in the direction of the natural circulation of the water. The upper part of the compartment c is in communication with the main steam space of the drum. The circulator device may be arranged outside the drum and connected to the drum by inlet and outlet pipes. The outlet pipe may terminate in nozzles so coacting with orifices in the diaphragm as to induce a circulation through the orifices. The impeller g, Fig. 2, and diaphragm d are so arranged as to direct the water downwardly into the down header b. To increase the circulation through the lower tubes of the boiler, the inlet ends of the upper tubes may be provided with baffles or deflectors which deflect the water circulating down the headers towards the lower tubes, or nozzles may be arranged opposite the ends of the lower tubes for directing jets of water into the tubes.
Patent GB-900639-A (GB)
Title: Improvements in or relating to building blocks and structures including such blocks
Inventor: BATTLE NORMAN
IPC: E04C1/39
Filed: 1958-01-21
Abstract: 900,639. Building blocks. ROLLS-ROYCE Ltd. Jan. 21, 1959 [Jan. 21, 1958], No. 2098/58. Class 87 (1). [Also in Group XL (a)] A building block 30, Fig. 4, of basically pri-  matic form, has a pair of like polygonal end faces and plane side surfaces joining corresponding edges of the end faces, a channel 35 extending along the block from one end to the other and joining a pair of the side surfaces; which channel has between its ends at least one keyreceiving recess 36 having oppositely facing abutment surfaces facing towards the end faces of the block, a key member 37 being adapted to be positioned within the recess when similar blocks are assembled in adjacent relationship to form a structure. The end faces may be triangular, rectangular, square or hexagonal. As described, the building-blocks according to the invention are employed to provide the core and reflector mass 10, 11, Fig. 2, of a nuclear reactor, and each block 30, Fig. 4, is of regular hexagonal right prism form having a series of axial bores 34 extending between its end faces 32. The key-receiving recesses 36 are part-cylindrical so as to co-operate with keys in the form of sleeves 37, have axially and oppositely facing shoulders 36a, and are formed between the ends of partcylindrical channels 35 extending between the end faces 32 and along the corners joining pairs of side surfaces 33. In the assembled pile of blocks the channels 35 and the bores of the sleeves 37 form continuous vertical cylindrical bores. The blocks are arranged in a series of vertical layers A1, B1, A2, &c., and by the use of half-length blocks it is arranged that the blocks in one layer overlap the blocks in an adjacent layer or layers. The blocks 30 are made of a moderator material such as graphite or beryllium. The assembly 10, 11 is itself of hexagonal prism form and is supported within a substantially spherical steel casing 12 by supporting-members 13, 14, engaging the corners and sides, respectively, of the assembly and attached to threaded bosses 17 in the casing 12 by struts 16 in ball-and-socket engagement with the supporting-members 13, 14. Cooling gas enters a supply connection 26 and flows upwards around the outside of the assembly 10, 11, then downwardly through the bores therein to a collecting manifold 27 and outlet conduit 28 coaxially within the supply connection 26. Fuel elements 24 are housed in the bores in the core 10 and control-rods 18 are supported in a frame 19 which is vertically displaceable by an electric motor 20 and rack-and-pinions 22, 21 to move the control-rods within the bores in the reflector mass 11. Specification 877,534 is referred to.
Patent GB-158198-A (GB)
Title: Improvements in high frequency telegraphy and telephony over wires
IPC: H04J1/16
Filed: 1921-01-14
Abstract: 158,198. Ges. f³r Drahtlose Telegraphie. Jan. 16, 1920, [Convention date]. Exchange systems and apparatus. - In highfrequency line telegraphy or telephony, a buzzer calling-signal is superimposed on the signal oscillations at the transmitting-station, and selecting- means is provided whereby an operator on hearing the buzzer note in a telephone common to several differently-tuned receivers can determine which of those receivers is to be employed. As shown in Fig. 1, receivers E1, E2, E3 are coupled to the line wire by means not shown, and are connected in succession through transformers T1, T2, T3, and a rotating distributor V1 to the operator's apparatus A. On the same shaft as the distributor V1, and driven by a motor M, is a disc V2 which lights, also in succession, lamps G1, G2, G3. When, for instance, the operator hears the buzzer at the same moment that the lamp G, is lit, he knows that the receiver E2 is wanted. In the arrangment shown in Fig. 2, the receivers (not shown) are continuously linked to the operator, and distinctive calling-signals are sent to line by each transmitter S1, S2, S3 from a buzzing-commutator U. Distributing-discs D1, D2, D3 carry single, double, and treble contacts K1, K2, and R3, respectively, arranged so that only one disc can come into action at a time. When the operator hears, say, three notes in quick succession (from K3) he knows that the receiver E3 is wanted.
Patent GB-1242312-A (GB)
Title: Improvements in or relating to telephone speech circuits
Inventor: SCHUH PETER OTTO
IPC: H04M1/58
Filed: 1969-01-14
Abstract: 1,242,312. Substation circuits; transistor amplifying circuits. WESTERN ELECTRIC CO. Inc. 14 Jan., 1969 [15 Jan., 1968], No. 2134/69. Headings H3T, H4K and H4R. An anti-sidetone circuit has the free terminal of the receiver of a telephone set connected to a feedback path connected between the input and output of an amplifier such that no voltage is developed across the receiver. The amplifier comprises transistors T1, T2 connected as a Darlington pair and is provided with a feedback path R1, R2 having a centre tap 6 connected to terminal 1 of the receiver. The common terminal 2 of the transmitter and receiver is connected to the amplifier through impedance Z B . Terminal 3 of the transmitter is connected directly to line terminal 3 and the earth of the amplifier. The transistors T3, T4 in impedance network Z B  are proportioned so that this impedance has a magnitude less than that of the line but is in phase with the line thereby giving an effective voltage gain from terminals 2, 3 to terminals 3, 4. Network R8, D1 together with resistor R5 compensate the circuit for line impedance changes. In operation, the transmitter signal is amplified to provide a voltage across line terminals 3, 4 and causes a current to flow through the feedback path resistors R1 R2 which are chosen so that no voltage exists between terminals 2 and 6. Feedback path resistors R1, R2 may be replaced by capacitors.
Patent GB-509842-A (GB)
Title: Improvements in or relating to indicator correcting arrangements for use in radio direction finding and other apparatus
IPC: G01S1/02
Filed: 1938-01-22
Abstract: 509,842. Indicating-apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., WRIGHT, G. M., and COCKERELL, C. S. Jan. 22. 1938, No. 2187. [Class 106 (iv] [Also in Group XL] Relates to an indicator correcting arrangement for use in radio direction finding and other apparatus in which a correction curve is superimposed upon the normal scale member. According to the invention, the reading edge or line of the indicator member is arranged to span a plurality of adjacent scale readings and to co-operate with the correction curve so that the intersection of the reading edge or line and the correction curve gives the corrected reading. In Fig. 1, the correction curve 3 is superimposed on the fixed annular scale 1 which is graduated with radial lines 2. The pointer comprises a transparent cursor 4 carried by the arm 5 which is rotated by the aerial shaft and the corrected reading is given by the intersection of the curve 3 and the oblique cursor line 7. The mark 8 gives uncorrected readings and facilitates the taking of "swing" readings when the received signals are too weak to allow accurate observation by the zero method. The transparent cursor may be replaced by an opaque pointer having an oblique or curved reading edge, Figs. 2, 3 and 6 (not shown). If the scale markings are oblique to the radius, the obliquity of the reading edge of the indicator may be varied and by suitably inclining the scale markings the reading edge may be radial, Figs. 4 and 5 (not shown). In any of the embodiments, the scale 1 may be transparent and illuminated from behind and the curve 3 may be drawn on a detachable transparent shield. According to the Provisional Specification, the correction curve may be positioned adjacent to the scale, in which case the reading edge of the indicator extends over the scale and the correction curve, the intersection of the curve and the indicator being projected on to the scale by radial lines drawn on the indicator. Specification 473,746, [Group XL], is referred to.
Patent GB-566003-A (GB)
Title: Improvements in and relating to the production of vinyl chloride
IPC: C07C17/08
Filed: 1943-02-10
Abstract: Vinylchloride is obtained from generator gas, produced by subjecting a hydrocarbon oil to the action of electric arcs, by scrubbing and drying the gas, and then passing it successively over activated carbon to purify it, heated metallic mercury and a catalyst comprising an activated carbon containing a mixture of mercury and mercurous and mercuric chlorides formed in situ on the surface of the activated carbon.  The catalyst is prepared by passing mercury vapour through heated activated carbon under reduced pressure until it is saturated, and then reacting anhydrous hydrogen chloride with the adsorbed mercury.  In an example, a gaseous mixture comprising principally acetylene and hydrogen prepared according to the process of Specification 564,569 is scrubbed with caustic soda solution and, after drying by means of solid caustic soda and silica gel, passed over activated carbon or coconut charcoal.  The purified gas and anhydrous hydrogen chloride are then passed over metallic mercury and then a catalyst prepared by passing first mercury vapour, under reduced pressure, and then anhydrous hydrogen chloride over dried activated carbon.  Specification 492,980 also is referred to.
Patent GB-684004-A (GB)
Title: Improvements relating to ratchet hoists
IPC: B66D3/14
Filed: 1947-11-12
Abstract: 684,004. Ratchet hoists. COLUMBUS Mc- KINNON CHAIN CORPORATION. Nov. 12, 1947. [Nov. 13, 1946] No. 2236/51. Divided out of 683,943. Class 78 (v). The load wheel shaft of a chain hoist is journalled in the frame of the hoist for operation by a ratchet wheel driven by a manually oscillated lever and is retained against axial displacement relatively to the hoist frame by a U-shaped retainer one arm of which extends into a groove in the shaft and the other is disposed adjacent the load wheel for stripping the chain therefrom. The hoist shown includes a U-shaped member 32 secured to the frame 10 of the hoist by a stud 34 with one limb projecting into a slot 30 in the shaft of the load wheel 24 and the other arranged to strip the chain from the wheel. The shaft has a reduced portion 28 carrying the ratchet wheels and friction discs described in Specification 684,006, and portions 22, 20 carried in bearings 18, 16 respectively and is integral with the clutch plate 26 and load wheel 24 as described in the Specification referred to. End thrust is transferred by the bearing 16 to a shoulder 29 on the frame. As shown in the drawing, the several portions of the shaft and the frame are so proportioned that the bearing and shaft elements may be progressively assembled from right to left by insertion from the left. The Specification as open to inspection under Sect. 91, comprises also the subject-matter of Specifications 683,943, 684,005 and 684,006, which are referred to in the Specification as accepted.
Patent GB-588077-A (GB)
Title: Improvements relating to screw-cutting lathes
IPC: B23Q5/34
Filed: 1945-01-29
Abstract: 588,077. Turning. WARD & CO., Ltd, H. W., and HANILY, M. A. Jan. 29, 1945, No. 2275. [Class 83 (iii)] A screw-cutting lathe has means for automatically disconnecting the lead screw and the tool slide when the latter reaches a predetermined position and comprises a hand-lever for engaging the slide with the lead screw, a spring- loaded lever adapted to actuate the hand lever, a catch for retaining the lever, and means operable by contact with a stop for releasing the catch. The spring-loaded lever c, Fig. 2, contacting the hand lever a is retained in its inoperative position by a pivoted catch e. A bell-crank lever g, Fig. 3 (inverted plan), bears against the other end of the catch and is operated by a slidable rod f connected by a link to the lever and secured at its other end to a lever h. An adjustable stop on this lever contacts an adjustable stop i secured to the bed of the machine at the end of a screw-cutting operation and the latch e is thereby tripped. The lever c springs over to the " broken line " position, Fig. 2, and thus moves the lever a to disconnect the feed.
Patent GB-1130944-A (GB)
Title: Improvements in and relating to electrical clocks
IPC: G04C3/06
Filed: 1966-01-18
Abstract: 1,130,944. Electric clocks. H. HETTICH. Jan. 18, 1966, No.2341/66. Heading G3T. An electrically driven balance wheel 1 is mounted to rotate about a wire 20 which passes through the balance wheel spindle 12 and also through the hub 51 of a ratchet wheel 5, the ratchet wheel being driven by a pawl 4 secured to the balance wheel by a stud 15. The balance is supported by a twin spiral spring 2 secured to a mounting 3 and the wire is tensioned between the mountings 3, 31. Control and drive coils 8 and 9 respectively co-operate with two parallel bar magnets 7, 71 to maintain the oscillation of the balance wheel. The pawl 4 which comprises a bronze leaf spring drives the ratchet wheel, a worm gear of which meshes with a worm wheel 6 to drive the dial train. A magnet, which co-operates with the teeth of the ratchet wheel, prevents reverse rotation of the ratchet wheel during the reverse half oscillation of the balance wheel.
Patent GB-236474-A (GB)
Title: A combined funnel and tank
IPC: B67C11/00
Filed: 1925-01-27
Abstract: 236,474. Gommersbach, W., and Nadol, F. Jan. 27, 1925. Stoppers fitted with funnels.-A funnel capable of serving also as a lid for a petrol &c. tank, comprises also two lids a, b fixed at an angle to one another with their edge hinged to the edge of the filling opening of the tank, one of the lids a forming a funnel wall while the other lid b has a gap to form a funnel mouth to the end of which the opposite funnel wall is fixed. A fastener e is formed on the tank to hold the lid in the open or closed position.
Patent GB-1459402-A (GB)
Title: Registering method
IPC: B65H9/04
Filed: 1973-01-17
Abstract: 1459402 Registering sheets B LANDA 16 Jan 1974 [17 Jan 1973] 2377/73 Heading B8R A sheet 1 being conveyed on belts 3 is registered in the exposure station of a xerographic colour copying machine by engaging the leading edge at a point offset from the centre line of the sheet with front stop 6 to cause "skewing" of the sheet to the dotted line position and arresting this skewing movement with side stops 7 and 8. When exposure has been completed the front stop is withdrawn to permit continued transport of the sheet. The belts 3 which are driven by roller 4 over a table 5 are stopped during the exposure.
Patent GB-1409792-A (GB)
Title: Method of equilibrating a liquid and a gas
IPC: G01N33/483
Filed: 1972-01-18
Abstract: 1409792 Determination of equilibrium gas content RADIOMETER AS 12 Jan 1973 [18 Jan 1972] 2416/72 Heading G1B A liquid is equilibrated with a gas of known or fixed composition by a method comprising segmenting the liquid (which may be a sample stream) flowing in a narrow tube with portions of the equilibrating gas, equilibrating the sequence of liquid segments and gas portions flowing within the tube and then separating the gas from the equilibrated liquid and performing measurements on the liquid. In the device shown in Fig. 3, offtake tube 71 is axially displaceably mounted within sleeve 73 which has an inlet 79 through which equilibrating gas is fed. Sleeve 73 has a flange 83 which closes container 81 when the offtake tube is in the sample-taking position. Axial movement of tube 71 is limited by stops 75, 77. In the determination of the carbon dioxide content of blood, samples taken from containers 11  using the device of Fig. 3 are fed through line 15, and the sample stream is further segmented at point 31 with equilibrating gas from cylinder 21. The segmented stream is fed through debubbler 37 and a drop chamber 43 Fig. 2, (not shown), which functions as an insulating device, to electrode 49. An electrolyte solution is supplied from container 61 to a second reference electrode 53 and then flows into tube 57 so forming a salt bridge between the electrodes. The signal from 49, 53 is passed to meter 51 and recorded at 55. Line 35 indicates a temperature-controlled enclosure.
Patent GB-161353-A (GB)
Title: Improvements in suspending means for electric light fittings
IPC: F21V21/02
Filed: 1920-01-26
Abstract: 161,353. Green, F. I. Jan. 26, 1920. Supporting.-A detachable support for electriclight fixtures comprises a member A, formed of refractory material, which is permanently fixed to the wall or ceiling or contained in an outlet box, and is threaded on the outside to take a supporting member or canopy 18 which carries the stem of the lighting fixture in its lower threaded portion 19. This canopy 18 also serves to cover a screw-plug 13 which makes electrical connection with terminals in the 'socket J secured to the member A by screws 9. The lead F is brought through a hole D in the member A and clamped to the flange I of the socket J by the screw H. The other lead G is brought through the hole E and clamped by the screw 5 in the plate 4. The socket J is formed with a thread to take the plug 13, which is wired up to the lighting fixture so as to leave slack in the cable 15, 16 when in position.