baber/WOPTO huggingface dataset:
Patent GB-1533716-A (GB)
Title: Developing agent supply apparatus including a device for detecting the presence or absence of magnetic developing agent
IPC: G01F23/00
Filed: 1976-07-29
Abstract: 1533716 Measuring presence or absence of developing agent OCE-VAN DER GRINTEN NV 29 July 1976 [30 July 1975] 31714/76 Heading G1W The presence or absence of magnetic developing agent 2 in a supply container 1 of a developing agent supply apparatus is detected by arranging a magnet 3 and magnetic field sensing element 5 (reed switch or Hall plate) in close proximity to the bottom of the container (as shown) or to a lower part of a vertical or inclined container side wall. When developing agent 2 is present in the container, as shown, the magnetic field from magnet 3 passes through the developing agent and is of sufficient magnitude to actuate reed switch 5 whereas when the amount of agent 2 is small the magnetic field passing through switch 5 is of such a low value that the latter is de-actuated. The reed switch is connected in a lamp circuit whereby the lamp is  switched on when the switch is de-actuated.
Patent GB-1369750-A (GB)
Title: Hooks
IPC: F16B45/00
Filed: 1973-04-11
Abstract: 1369750 Hooks ROCOLA SHIRTS Ltd 11 April 1973 [6 July 1972] 31823/72 Heading E2A A hook suitable for carrying an article comprises a portion 3 on which the article may be hung and clamping means for securing the article to the portion. As shown the clamping means comprises a pair of pivoted members 6 (7 Fig. 2 not shown) spring loaded so as to be engageable about the portion 3 and being connected to the hook body by an elongate flexible member 5. Alternatively the clamping means may comprise a jaw at one end of an arm the other end of the arm being connected to a further arm pivotally mounted on the hook body, the further arm being spring biassed so as to urge the jaw towards the aforesaid portion of the hook (Figs. 3, 4, not shown). The hook further has a part 11 provided with an aperture 2 for the passage of an elongate supporting member such as a rail, line or the like. The hook body may be made from polypropylene and the clamping means 6 (7) from wood. With a hook or hooks mounted on the elongate supporting member, the latter may be mounted on a trolley which runs on a rail, a stop rod of the trolley engaging the hook or hooks to prevent rotation of the hook or hooks in one direction about the elongate support member (Figs. 5, 6, 7 not shown).
Patent GB-751944-A (GB)
Title: Improvements in or relating to storage batteries
IPC: H01M50/147
Filed: 1954-11-04
Abstract: 751,944. Batteries. GOULD-NATIONAL BATTERIES, Inc. Nov. 4, 1954 [June 17, 1954], No. 31982/54. Class 53. The walls and partitions of an accumulator container are formed at their upper ends with ledges 46 which support frames 50 consisting as shown in Fig. 4 of vertical and horizontal flanges which with the upper ends of the walls and partitions provide gutters extending round the open ends of the cells. The cover 35 is provided with downwardly extending flanges 56 which enter the gutters which are filled with cement. The straps 26 that connect adjacent cells are housed in recesses in the cover which are closed by plates 40 having side extensions to enable them to be sprung into position.
Patent GB-1016466-A (GB)
Title: Nylon filled with carbon black
IPC: C09C1/56
Filed: 1964-08-06
Abstract: Nylon is mixed with carbon black having a total oxygen content below 3%.  The oxygen content of ordinary carbon black may be reduced to this level by either heating it with platinum oxide in a hydrogen atmosphere, treating it with a 2-4% solution of diazomethane in ether or heating it to 1000 DEG  C. in a stream of N2 or under vacuum.  The treated carbon black has a particle size of 5-70 millimicrons. Nylons specified are nylon-6 derived from aminocaproic acid and nylon-66. Polymer mixtures may also be used.  0.05-10% carbon black may be added to the monomer(s) before or during polymerization or to the molten or solid polymer. The product may be spun into fibres or films or moulded.
Patent GB-859322-A (GB)
Title: Improvements in or relating to transistor circuits
Inventor: CHAPLIN GEORGE BRIAN BARRIE
IPC: H03K5/003
Filed: 1956-10-20
Abstract: 859,322. Transistor circuits. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 18, 1957 [Oct. 20, 1956], No. 32013/56. Class 40(6). In a chopper or clamping circuit of the type comprising a transistor having its collector connected to a fixed potential, its emitter connected to signal input and output terminals and its base connected to a switching potential source, a circuit is connected between the switching source and the base to ensure that the base can only be switched from the fixed potential in the direction which renders the transistor conducting. In Fig. 3, the emitter-collector path of a transistor T1 shunts the path between the circuit input terminal 1 and the input terminal 3 of an amplifier. A negative input voltage at a switching input terminal 1 will render the transistor fully conducting while a positive potential will render it non-conducting. In the latter condition a network D1, R3, R2 prevents the base from rising appreciably above earth potential. As the input voltage is only very small the collector base and emitter terminals are then at substantially the same potential and almost no leakage current flows. The bottoming voltage which exists between emitter and collector when the transistor is conducting may be eliminated by injecting a small voltage between collector and base when the transistor is conducting. The Provisonal Specification also describes a D.C. amplifier (Fig. 5) in which the collector loads are of such a value that the base potentials of all transistors are equal. The collector-base potentials are therefore zero, but useful amplification may still be obtained. Negative feedback through resistors R7 and R8 is provided to stabilize the operation and a de-coupling circuit R10, C1 may be included in the feedback circuit to prevent feedback of alternating current signals. The base of the first transistor may be connected through a resistor R9 to an HT source in order to provide the desired value of output current.
Patent GB-673919-A (GB)
Title: Improvements in or relating to tyre gauges
Inventor: BROWN THOMAS
IPC: G01L17/00
Filed: 1949-12-14
Abstract: 673,919. Tyre-pressure gauges. PNEUMATIC COMPONENTS, Ltd. Oct. 23, 1950 [Dec. 14, 1949], No. 32031/49. Class 106 (ii). In a cycle tyre pressure gauge an annular flexible seat 7 is adapted to fit round the end of the main body 10 of the valve stem so as to close the end of a recess 5 within the connector end of the gauge of such a depth that the seat 7 makes contact with the valve stem 10 before the inner end 14 of the recess has pressed the valve spindle 16 sufficiently to remove the valve from its seat.
Patent GB-201089-A (GB)
Title: Improvements relating to electric battery lamps or lanterns
IPC: F21V17/02
Filed: 1922-11-23
Abstract: 201,089. Wootton, G. A. H. Nov. 23, 1922. Mounting reflectors on lantern casings.- In police lanterns &c. the reflector 8 is attached to a tube 18 slidable on a fixed tube 6 and prevented from rotating by a pin engaging an axial slot 17 in the tube 6. A tube 16 carrying the lens 9 is rotatable on the reflector tube, and is prevented from moving axially by a catch-lever 23<1> engaging a groove in it. A pin 19 on the reflector tube engages a spiral slot 20 in the lens tube, so that by rotating the latter the reflector can be adjusted with respect to the lens.
Patent GB-400782-A (GB)
Title: Improvements in and relating to sliders for separable fasteners
IPC: A44B19/30
Filed: 1932-11-14
Abstract: 400,782. Fastenings. WINTERHALTER, M., 19, Davidstrasse, St. Gallen, Switzerland. Nov. 14, 1932, Nos. 32141 and 32142. Convention dates, Nov. 13, 1931, and Jan. 25, 1932. [Class 44.] A runner 1 for a slider-operated fastener is provided with the usual tab 2 which is pivoted in a part 7 provided with means at one end for engaging between the fastener elements when the tab is released. A stop 4 restricts the movement of the part 7. The latter may be pressed upon by a spring or, as in Fig. 8b, a magnet 4 may attract a bar 1 so that the end 3 engages the fastener elements to lock the fastening. A chain may be attached to the tab which, in this case, is enclosed. As open to inspection under Sect. 91 of the Acts, the Specification described a cam turned to press against the locking elements when the tab was released. This subject-matter does not appear in the Specification as accepted.
Patent GB-476224-A (GB)
Title: Improvements in or relating to electric interrupting devices
IPC: H03K17/74
Filed: 1936-05-27
Abstract: 476,224. Converting; cathode-ray oscillographs. ELECTRICAL IMPROVEMENTS, Ltd., and BLACKBURN, C. L. May 27, 1936, No. 32240/37. Divided out of 476,164. [Class 38 (ii)] [Also in Group XXXVI] A device for interrupting a supply V, Fig. 1, to a load C consists of a resistance D and a main rectifier F in series, and means for applying an independent control voltage VC across the resistance D through a control rectifier J, the two rectifiers being so connected as to prevent the control voltage from being applied to the load when the voltage in the main circuit is in opposition to the main rectifier. The arrangement shown in Fig. 3 utilizes both half waves of an AC supply V. Two resistances D, D<1> and two reversibly arranged main rectifiers F, F<1> are disposed in parallel and the control voltage is applied through rectifiers J, J<1> from an independent AC control source 2VC. Four such interrupting systems may be applied as shown in Fig. 4 to represent two vectors simultaneously by means of a cathode-ray tube. The voltages V<1> and V<2> correspond to the resolved components of one vector, while the voltages v<1> and v<2> represent the components of the other vector, The main voltages are applied through amplifiers L<1>, L<2> to the deflecting plates C<1>, C2 of the cathode-ray tube. In one half cycle of the control voltage 2VC, the component voltages V<1>, V<2> will be operative to produce a graphic representation of one vector on the cathode-ray tube screen, whilst the other vector will be represented during the other half cycle. Owing to persistence of vision the two vectors will appear to be simultaneously represented.
Patent GB-1536360-A (GB)
Title: Apparatus responsive to a low flow rate of liquid
IPC: G01F1/00
Filed: 1977-08-03
Abstract: 1536360 Measuring fluid-flow ENGLISH CLAYS LOVERING POCHIN & CO Ltd 3 Aug 1977 [3 Aug 1976] 32369/76 Heading G1R Apparatus for providing a signal when the flowrate falls below a predetermined value and remains below that value for a predetermined time, comprises inlet, monitoring and outlet compartments 8, 10, 12 separated by partitions 6, 4 over which liquid can overflow; a by-pass duct22 which allows liquid to flow at the predetermined rate from the inlet to the outlet compartment without flowing into the monitoring compartment; level sensing means 18 and a passage 26 allowing liquid to empty from the monitoring compartment down to the level of the sensing means in the said predetermined time providing no additional liquid flows over partition 6 due to increase flow into compartment 8. The apparatus is used to control one or several plate filters for de-watering slurry.
Patent GB-606580-A (GB)
Title: Improvements in or relating to television radio signalling systems
IPC: H04N5/28
Filed: 1945-11-30
Abstract: 606,580. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 30, 1945, No. 32482. Convention'date, Nov. 30, 1944. [Class 40 (iii)] [Also in Group XL (c)] A portable television camera is associated with an auxiliary aerial, coupled to an energy-absorbing circuit, the picture signals being arranged to control the energyabsorption and so to modulate the carrier wave, which is generated and radiated at a separate stationary aerial and is re-radiated at the auxiliary aerial. As shown in Fig. 1, a source 10 supplies carrier to a transmitting aerial 18 directing its radiation on an auxiliary aerial 20, associated with the modulating source which comprises a television camera 42. Modulated waves reflected or re-radiated by the aerial 20 are picked-up by a receiving aerial 22 and are either de-modulated at 14 or are passed to a re-transmitting amplifier 36 and aerial 37. The picture signals from the camera 42 are amplified at 52 and applied to a device 49, which varies the damping or tuning of a circuit coupled to the aerial 20. Radiation from the aerial 20 is thus amplitudemodulated by the television signal. The carrier source 10 may be modulated by synchronising signals from a source 32, which are detected by the device 58 and control a deflecting circuit 46 supplying scanning and blanking voltages to the camera 42. The damping device 49 may comprise a tuned circuit 66, 68, Fig. 2, connected in the anode circuit of a tetrode valve 70, the picture signals being applied to its control grid, and the aerial 20 being tapped on the coil 66. The detector for the synchronising signal comprises a diode valve 84 with load resistance 88. The television receiver 14 may be synchronised by a connection from the source 32 through an adjustable delay network 38; or a radio transmitter link may be used. Specification 413,646 is referred to.
Patent GB-145362-A (GB)
Title: Improvements in wheel rims
IPC: B60B23/02
Filed: 1919-12-29
Abstract: 145,362. Cordell, J. W. Dec. 29, 1919. Tyre attachments to rims. - An expansible rim 2 having a tongue 9 at one end adapted to engage a notch 8 in the other end is formed on its inner periphery with a continuous struckup channel 4 to receive a lever 10 which is pivoted at 11, 12 to the adjacent ends 7, 6 of the rim. The seatings for the trunnions 11, 12 are formed partly in the rim base and partly in plates 15, 17.
Patent GB-759052-A (GB)
Title: Improvements in or relating to couplings
Inventor: FORSYTHE GEORGE HOWARD
IPC: F16D3/80
Filed: 1953-11-24
Abstract: 759,052. Torque transmitting couplings. VICKERS - ARMSTRONGS ENGINEERS, Ltd. Oct. 25 1954 [Nov. 24, 1953], No. 32604/53. Class 80(2) Torque is transmitted between concentric members 1, 3 by fluid pressure in spaces 13 between longitudinally extending teeth 4, 8 fixed to the members 1, 3 respectively. The tips 9, 11 of the teeth closely fit the cylindrical faces 10, 12 of the members 1, 3. Fluid under pressure is delivered through radial ducts 15 to the tips of the teeth 4 and thence through recesses 16 to the spaces 13. The recesses 16 gradually increase in size from a position midway between adjacent teeth 8 so that when in use the pressure in a space 13 increases as the space decreases. The ends of the spaces 13 are sealed by rings 18, 19 fixed to the member 3 and ring 20 fixed to the member 1. The rings may have valve means to control leakage from the spaces 13. The teeth 4, 8 may be axial or helical. As shown in Fig. 3 the member 3 is a gear wheel with gear teeth 21.
Patent GB-604784-A (GB)
Title: Improvements in or relating to blocking-layer cells
IPC: H01L23/48
Filed: 1945-12-03
Abstract: 604,784. Non -- contact - making relays. PHILIPS LAMPS, Ltd. Dec. 3, 1945, No. 32633. Convention date, Aug. 2, 1940. [Class 40 (iv)] [Also in Group XXXVI] The connecting lead 6 to a grid 5 embedded in the blocking layer of a rectifier cell is arranged to be at a greater distance from the anode 1 than that between the grid and the anode. A selenium layer 1 carried on an aluminium plate 2 has applied to it a layer 4 of polystyrene having a thickness of, for example, 5 microns. An elevated portion 7, which may be in the form of an annular ridge, is provided of the same material over which the supply conductor 6 to the grid passes and by which it is mechanically supported. The end of the supply conductor 6 makes electrical contact with the metallic grid 5 which is embedded in the blocking layer. By this means electron flow from the grid supply conductor to the anode is prevented.
Patent GB-946542-A (GB)
Title: Improvements in trailers
Inventor: BAIRD JAMES ROSS
IPC: B60G5/047
Filed: 1959-09-25
Abstract: 946,542. Vehicle bodies; suspensions. YORK TRAILER CO. Ltd. Dec. 22, 1960 [Sept. 25, 1959], No. 32715/59. Headings B7B and B7D. The side walls of a semi-trailer are constructed so as to withstand the load of the trailer, the wheel suspension members being carried by transverse members attached to the side walls. Each side wall comprises beams 12 and 14, Fig. 3, and a plurality of posts 18, a recess 16 and a shoulder 20 being provided in the beams 12 and 14 respectively to accommodate the posts which are of channel section, the base of which faces either inwardly or outwardly and to which is attached the side panels 21 which may be corrugated. The roof 25 is attached to roof beams 24 connecting the beams 12 and the floor 23 is carried by beams 22 connecting the beams 14. One end of the semitrailer is constructed similarly to the walls and is jointed to the walls by corner posts and the other end of the trailer is provided with doors 3. The trailer is provided with a rubbing plate and a king pin for attachment to the towing vehicle and a pair of retractable wheels 8. Pairs of road wheels 4, 5 are carried by suspension members attached to longitudinal beams 30 and 32 carried by transverse beams 26 and 28. As shown in Fig. 6, the wheel axles are attached by U-bolts 34, 36 to leaf spring assemblies 38 and 40, the forward ends of which are connected to hangers 42 and 52 and the rear ends of which are attached to a rocker arm 46 carried by trunnions 48 carried by a channel member 50 extending between the beams 30 and 32. An adjustable arm 56 is provided to limit the rocking movement of each unit. In an alternative construction, Fig. 8, a single pair of wheels is provided, the suspension members being connected to beams 30 (and 32) carried at the rear end by a transverse member 58 instead of the beam 28. The Provisional Specification refers to a rubbing strip 45.
Patent GB-838241-A (GB)
Title: Improvements in or relating to cable-protecting devices for electrical apparatus
IPC: H01R13/58
Filed: 1957-10-21
Abstract: 838,241. Two-part couplings. COMPAGNIE FINANCIERE IMMOBILIERE ET MOBILIERE COFIMO. Oct. 21, 1957 [Oct. 22, 1956], No. 32729/57. Class 38 (1). A cable protecting device for electrical apparatus comprises a flexible support to which the cable is rigidly connected is attached to the apparatus so that the support absorbs any pull on the cable. The device is preferably associated with a two-part connector. A plug 4, Fig. 1, and integral flexible support 1 is attached to an apparatus 3. A supply cable terminates in a corresponding socket 9, 14 and is designed so that an initial pull distorts the support 1 and subsequent heavier loading pulls the connector apart. The plug 4, Fig. 2, is of one piece moulded construction and has projections 17 which engage with grooves 18 on the socket, the members 17, 18 disengaging at a predetermined force. The socket comprises two parts enclosing the contact tubes 10 the conductors 11 being clamped between the two parts by means of teeth (not shown). The two parts are contained in a rubber casing 14.
Patent GB-270196-A (GB)
Title: Apparatus for playing a board game
IPC: A63F3/00
Filed: 1926-12-29
Abstract: 270,196. Flegel, R. Aug. 5, 1926, [Convention date]. Board games. - An apparatus for playing a board game comprises a set of pieces representing football players and a ball, and a board depicting a football field in reduced scale and marked with vertical and horizontal main lines g passing through the starting points f of the ball and of the men of the two teams, bordering lines for the two goal spaces, bordering lines for the two penalty areas, a number of inclined and circular lines connecting the main lines with each other and a number of stop points l for the ball and for the men to be occupied according to the throw of the dice.
Patent GB-263857-A (GB)
Title: Improvements in and relating to electric furnaces
IPC: H05B6/20
Filed: 1926-12-30
Abstract: 263,857. British Thomson-Houston Co., Ltd., (Assignees of Unger, M.). Dec. 31, 1925, [Convention date]. Induction furnaces.-In a furnace comprising a reservoir 11 communicating with one or more looped secondary channels 13 each channel has a greater cross sectional dimension in its own plane than in a direction at right angles thereto so as to provide for increased circulation due to electromagnetic repulsion. The furnace may have two horizontal channels and the ratio of the width of the channel to its depth is 2 : 1 and 4 : 1 in furnaces for treating copper and iron respectively. The furnaces may be adapted for tilting.
Patent GB-1149494-A (GB)
Title: Positioning system
IPC: G05B19/44
Filed: 1966-07-22
Abstract: 1,149,494. Shaft-position digitizer. NETHERLANDS APPLIED SCIENTIFIC RESEARCH FOR INDUSTRY, TRADE & COMMERCE. 22 July, 1966 [23 July, 1965], No. 33153/66. Heading G4P. Coarse 7 and fine 9 pneumatically sensed 22, 24 and 23, 25, coded scales are coupled by epicyclic gearing comprising a driven planet 14, a fixed sun 18 (of 199 teeth) and an output sun 12 (of 200 teeth), and means 28, 29, 30, 31 (also Fig. 3, not shown), are provided whereby a small displacement may be selectively imparted to the fixed sun 18 so as to off-set the "zero" of the fine scale. This feature is of use when the digitizer forms part of the feed-back loop of an automatic positioning system.
Patent GB-638449-A (GB)
Title: Improvements in the mending of knitted fabrics
IPC: D04B17/00
Filed: 1947-12-17
Abstract: 638,449. Sewing-machines. PRODEL, M. A. Dec. 17, 1947, No. 33327. [Class 112] Running-stitch machines; linking-machines; feed by clamps or the like. A machine for securing the picked-up loops of repaired knitted fabrics by running a thread through the loops comprises a work-supporting carriage, which is intermittently advanced, and a needle reciprocating in a direction perpendicular to that of the movement of the carriage; a double-ended needle is preferably used to pass the thread through the loops. In the embodiment shown, the fabric B is held with the loops on either side of the missing thread impaled on separate hooks laid on either side of the apex of a carriage 6 with inclined faces, the hooks being held down by hinged flaps and pressed together laterally by sliding members : the width of each hook is equal to that of a loop of the fabric, and the two rows of hooks are staggered by half the width of a loop. The carriage slides in a slot in a laterally-inclined base 5, and is urged forwards by a band attached to a spring drum ; it has on its underside two racks with teeth of the same pitch, and arranged in the same way, as the hooks. The racks are engaged by pivoted spring-pressed catches 12, arranged in line with each other so that only one at a time engages between teeth of the corresponding rack while the other rests on a tooth ; they are lifted alternately by steps or toothed sectors 41 oscillated by links from wheels 45 geared to the main driving shaft 4. The double-pointed needle 32 is engaged by spring-pressed jaws in sliding chucks 37 which are reciprocated by engagement with the sectors 41. The carriage is thus released after each needle stroke for movement through half the width of a loop, so that the thread is passed through the loops in the same manner as the threads constituting the fabric. The machine may be actuated by a handle on the shaft 4 or by other mechanical or power means.
Patent GB-817458-A (GB)
Title: Preparation of ferrites of high initial permeability and products obtained
IPC: C04B35/26
Filed: 1957-10-25
Abstract: 817,458. Magnetic compositions. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Oct. 25, 1957 [Oct. 29, 1956], No. 33382/57. Class 38 (2). A magnetic ferrite with high initial permeability comprises nickel, zinc and ferric oxide and between 0.04 and 1.5 mol. per cent of lithium oxide. It is made by heating at 1250- 1300 C. in oxygen for 4 hours a mixture of nickel, zinc and lithium oxides and 49.7-50.3 mol. per cent ferric oxide. The lithium may be in the form of a compound easily reducible to the oxide. The grain size should be between 2 and 20 microns.