baber/WOPTO huggingface dataset:
Patent GB-1186447-A (GB)
Title: Fluid Pressure Operated Crane provided with a Safety Device
IPC: F15B11/02
Filed: 1967-04-03
Abstract: 1,186,447. Overload safety devices for cranes. TICO A.B. 3 April, 1967 [29 April, 1966], No. 15094/67. Heading B8B. An hydraulic powered crane (not shown) provided with a luffing-end jib raised by an hydraulic piston and cylinder assembly A and with an hydraulic winch B, both powered by an hydraulic pump C has an overload safety device included in the control system which comprises an adjustable sensing means D, a known pilot-controlled unloading or relief valve E and a control valve means F. With respective control levers 26, 27 for the winch B and the piston and cylinder assembly A in neutral or stop positions the pump C circulates fluid through valves E and F back to the fluid tank. Operation of lever 27 to raise the end jib feeds fluid under pressure to the piston and cylinder assembly A and also to adjustable plunger 3. If the pressure rises to an overload value the plunger 3 is displaced to the left opening a port so that fluid in pilot line 13 returns to tank through channel 14 and line 15. In this case there is no pressure in the pilot line 13 so that valve plug 16 is displaced upwards and opens a discharge port 25 leading to the tank through a line 17. A check valve (not shown) at the valve F prevents fluid flowing back through line 10 and as the pressure in the line 10 is small neither the winch B nor the piston and cylinder assembly A can be further operated. In order to reduce the overload, e.g. by retracting a telescopic boom using the winch B, then the small residual pressure in the line 10 is connected through lines 19, 20 to a plunger 1 by operation of the lever 26. Though this pressure is insufficient to operate the winch B it actuates the plunger 1 so as to block port opened by operation of the plunger 3. The valve E is thus reset to enable operation to be resumed in a direction to reduce the overload. All the operations of the crane which tend to produce or increase an overload may be connected to a plunger such as 3, while operations acting in the direction to reduce an overload may be connected to a plunger such as 1. Any operation resulting in an overload thus cuts off the fluid pressure supply but operation of any of the devices of the crane in a direction such as to reduce the overload is possible. Instead of operating directly on the pilot line 13 the plungers may act through auxiliary valves (not shown).
Patent GB-183650-A (GB)
Title: Improvements in or relating to the manual propulsion of screw propelled small vessels
IPC: B63H16/18
Filed: 1921-05-31
Abstract: 183,650. Cary, R. E. May 31, 1921. Reversing - gearing comprises a gear A<4> ncrmally driving a gear J supported in a pivoted bracket K and always in mesh with with an idler J<2>. For reversing, the bracket K is moved so that the gear J disengages from the gear A<4> and the idler J<2> is brought into mesh with the gear A<4>.
Patent GB-886548-A (GB)
Title: Improvements in and relating to electrical resistance measurements
Inventor: BERGER BRUNO
IPC: G01R17/10
Filed: 1958-05-12
Abstract: 886,548. Measuring-bridges; resistance measurement. PARSONS & CO. Ltd., C. A. May 26, 1959 [May 12, 1958], No. 15163/58. Class 37. In a Kelvin double bridge network (Fig. 2a) for measuring the resistance value R x  of a large inductance (e.g. a transformer winding) the bridge supply voltage is raised to n times that normally used in such a bridge to give adequate sensitivity, where n is an integer, e.g. 10, and applied thereto through a resistance R z  in series with a non-inductive current limiting resistance T of the bridge ; the value of R z  being such that the steady state supply current to the bridge is unaltered, e.g. such that R Z =(n-1)Rb, where Rb is the input resistance of the bridge, including T. When the bridge is switched into operation, normally closed relay contacts C short-circuit R z  until the voltage across T reaches a value ET/Rb corresponding to the steady state drop when R z  is in circuit. A damped voltmeter V across T operates an alarm contact at this value to trigger discharge tube F energizing relay D to open contacts C to include R z , for measurement to take place. Since the bridge input resistance is independent of R x , the steady state input current remains constant at a value which is rapidly reached after switching on, notwithstanding the high inductance of the winding, by the large voltage nE initially applied, while the steady state current once established is maintained by the insertion of R z  (Fig. 3, not shown). The alarm contact operation setting is manually adjustable, while appropriate values of T are selected by a ganged switch together with the resistances S, T, R z  for different bridge ranges, whereby the steady state voltage across T is constant for all ranges. The device is also applicable to other forms of measuring bridges or to the supply of a voltmeter/ammeter circuit for measuring the resistance of a large inductance. Switches SW1, SW2 respectively initiate operation and extinguish the tube F after striking.
Patent GB-333585-A (GB)
Title: Improvements in or relating to talking machines having electrical reproduction
Filed: 1929-05-15
Abstract: 333,585. Newman, A. M., and Suchomski, J. May 15, 1929. Gramophone pick.ups.-A pick-up 7 comprises two microphone chambers 23, 24 which contain fixed electrodes 25, 26 and movable electrodes 27, 28. the spaces between which are filled with powdered carbon. The movable electrodes 27, 28 are secured to a lever 29 which carries the needleholder 30.
Patent GB-292064-A (GB)
Title: Transformer for polyphase rectifiers
IPC: H02M7/06
Filed: 1928-05-24
Abstract: 292,064. Maschinenfabrik Oerlikon. June 11, 1927, [Convention date]. Polyphase transformers.-In a three-phase to six-phase transformer for feeding a multi-anode rectifier and comprising a star-connected primary winding P and two sets N1, N2 of star-connected secondary windings phase displaced by 180, the two star points 01, 011 are connected to the cathode of the rectifier by auxiliary windings 0, 01 and 0, 011 so connected that the direct currents entering the two three phase sytems act magnetically in opposition, the auxiliary windings magnetizing in the same direction as the corresponding phase windings. A fourth core limb may be provided to obtain smoothing.
Patent GB-569023-A (GB)
Title: Improvements in or relating to collapsible boxes, cartons, or baskets made of cardboard or like materials
IPC: B65D5/46
Filed: 1943-09-20
Abstract: 569,023. Collapsable cartons &c. SKRINE, H. H., and DRING, Ltd., J. Sept. 20, 1943, No. 15409. [Class 18] Collapsable boxes, cartons or baskets, made of cardboard, millboard, fibre or similar sheet material, for grapes or other fruits, sweets, chocolates, cakes, &c. are formed from a onepiece blank in which each of two end panels 15 has a pair of wings 24, 25 which interlock, with corresponding wings on the other end panel. Handles 10, 11 project in known manner through slots 21, panels 2, 4 being outside the locking panels.
Patent GB-179840-A (GB)
Title: Improvements in wooden ships and the like
IPC: B63B5/00
Filed: 1921-06-03
Abstract: 179,840. Lewis, C. E. T. June 3, 1921. Planking.-In a flexible joint for planking of the kind in which a strip of flexible material such as copper is inserted in kerfs c, d made in adjacent planks a, b, nails or rivets f pass through either end of the strip.
Patent GB-476176-A (GB)
Title: Improvements relating to electrical relays
IPC: H01H51/28
Filed: 1936-06-02
Abstract: 476,176. Mercury switches. CIANCHI, A. June 2, 1936, No. 15451. [Class 38 (v)] An electric switch comprises a vessel enclosing mercury or other conducting liquid, and a body wholly or partly of magnetic material and provided with external magnetic means for acting on the body to change the extent to which it is immersed in the liquid and thus to change the level of the liquid, the vessel being provided with a part into which the liquid flows to bridge contacts when the liquid level is raised, the part being such that it retains liquid to retain the contacts bridged and the switch is mounted so as to be capable of being moved to discharge the liquid from said part and disestablish connection between the contacts. As shown in the Figure, the tubular magnetic armature 3 with an insulating liner 3<1> when attracted downwardly by energization of the energizing electromagnet 4 causes mercury 2 to be displaced into a side limb 6 to bridge contacts 7, the side limb, being formed at such an angle to the container 1 that when the armature is released mercury is retained in the side limb. In order that the switch may be reset and the circuit between contacts 7 sub. sequently broken the switch is mounted on a pivoted base which may be rocked either by a handle 13, electromagnet 15 or by eccentric cam or other means. The switch may be returned after the resetting movement either by a spring or gravity and normally rests against a rubber stop 12. A small opening or channel may be provided at the inner end of the side limb by which the mercury trapped therein may flow slowly back into the main body of mercury even if the switch remains untilted after its operation.
Patent GB-474166-A (GB)
Title: Improvements in or relating to powder puffs, rouge and other brushes and like articles, e.g. small mops
IPC: A45D33/34
Filed: 1936-06-03
Abstract: 474,166. Mops, pads, &c. McCANN, T. S. June 3, 1936, No. 15513. [Class 19] [Also in Group XIV] A powder puff, brush, or mop is made by winding or folding one or more strips of wool, fur or hair-bearing skin, to form a number of layers which are held tightly together with the wool &c., extending in the same direction and which are enclosed in a closely fitting cap from which the wool &c. projects. Fig. 2 shows a powder puff made by coiling spirally a strip of skin and Fig. 4b a puff formed from an annular strip pleated along radii. The strips are secured together by adhesive, or by threading a wire or pin through the layers and the cap is either forced on or is provided with screw threads. Different portions of a strip or different strips may be coloured to give a multi-coloured puff. A form is described which can be drawn by means of a chain into a cylindrical holder.
Patent GB-110042-A (GB)
Title: Manufacture of Condensation Products of the Anthraquinone Series.
Inventor: BLOXAM ARTHUR GEORGE
IPC: C09B5/18
Filed: 1916-10-31
Abstract: 110,042. Bloxam, A. G., (Durand & Huguenin Soc. Anon.). Oct. 31, 1916. Phthaleins.-Basic dyes are prepared by condensing the dyes described in Specification 10732/12 with dialkyl-p-phenylenooiamines having one amino group free; the condensation may be effected in the presence or absence of a solvent and at ordinary or raised temperature; the products yield dark-olive tints when printed on cotton with a chromium mordant. According to an example, the dye obtained from diethylamino - m-oxybenzoyl-benzoic acid and pyrogallol by treatment with concentrated sulphuric acid is condensed with dimethyl- or diethyl-p-phenylenediamine in alcoholic solution.
Patent GB-675569-A (GB)
Title: Constant viscosity method of lining container closures
IPC: B29C70/80
Filed: 1949-06-10
Abstract: <PICT:0675569/III/1> A process for lining container closures with accurately maintained amounts of container sealing compound having a critical temperature-viscosity characteristic includes the steps of circulating a large amount of the compound through a conduit system, releasing a predetermined quantity of sensible heat in the compound, thus regulating the viscosity, discharging a minor fraction only of the circulating compound on to successive closures, and continuously maintaining the volume of the compound being circulated by entraining the make-up quantity of compound in the circulating stream.  The sealing compound is solid or pasty when cold, shows a sudden drop in visocity within a critical temperature range (e.g. 100 DEG F-140 DEG F), and a rapid rise in viscosity as the temperature rises above the critical temperature. In the arrangement shown 10 is a gear type positive displacement pump driven by a variable ratio drive connected to an electric motor.  The discharge from the pump passes through 11 to an equalizer coil 12 immersed in water tank 13, through conduit 14 to the lining assembly 15 comprising a nozzle 16 and air chamber 17, then through conduit 19 to be discharged at 20.  The open end 20 is located close to the apex 21 of the conical bottom 22 of the compound supply tank 23.  A grid 24, forming a support for the cold solid compound 29, is composed of crossed small diameter pipes which extend through the base 22 and communicate with the water in tank 13. Alternatively, the grid may be heated electrically.  The water in tank 13 is maintained at a temperature close to the lining temperature by electric heating coils, and is circulated through pipes 27, 28 by pumps 26.  In operation material 29 is added and, melted by the water, collects at 30. Byepass valve 31, upper byepass valve 32, conveniently a spring loaded relief valve, and flow control valve 33 are opened and pump 10 started.  After a minute or two valve 31 is closed and the compound then passes through 11, 12, 14, 34, 32, 19, 22, but when the operating temperature is nearly reached valve 32 is closed so that the compound passes through 17, and after a few more minutes the lining machine is operated to supply the compound to closures 25.  The pump 10 supplies a substantial part of the heat required to prepare the compound, while the water melts the compound and compensates for radiation losses.  The heat supplied by the pump is dependent upon the speed of pumping which is controlled by the variable drive mechanisms and the back pressure on the system, which is adjusted by valve 33, and with these conditions set the system is largely self regulating.  The working data of two examples are given. It is preferred to heat the compound internally by means of a pump because the pump also builds up the pressure to move the material through the circuit, but this heating may also be accomplished by passing the compound through a high frequency electric field, or by means of mechanical or electric oscillators or a pulsing diaphragm.
Patent GB-1526122-A (GB)
Title: Electrolytic cell
IPC: C25B9/19
Filed: 1976-04-15
Abstract: 1526122 Frames for filter-press cells ASAHI GLASS CO Ltd 15 April 1976 [15 April 1975] 15634/76 Heading C7B Each quadrilateral frame of a diaphragm filterpress cell has upper 2 and lower 3 hollow parts separated by side walls 4, 5 and communicating with the cell via a perforated wall 6, 7. Each frame has separate inlet or outlet 8, 9. Parts 4, 5 may be hollow for circulating a heat exchange fluid. Suitable metal or plastics materials are used. Asbestos, PTFE or cationic membranes are referred to.
Patent GB-176279-A (GB)
Title: Improvements in and relating to funnels for laboratory and other purposes
IPC: B67C11/02
Filed: 1921-06-07
Abstract: 176,279. Worcester Royal Porcelain Co., Ltd., and White, G. N. June 7, 1921. Funnel filters. - Relates to funnels for laboratorv and other purposes and to the kind used for filtering liquids where a partial vacuum is produced below the funnel to accelerate the filtration. A perforated diaphragm, on which the filter-paper &c. is placed, is located in the body of the funnel and baffle is arranged below the diaphragm to form a chamber between the baffle and the bodv or neck of the funnel, from which the air may be extracted by any suitable means. As shown, the funnel of porcelain &c. has a cylindrical body portion b and a conical base portion c leading into a tapered neck d, a truncated inverted conical member f with a central aperture k at its lower end being arranged below the diaphragm e in the portion b and one or more tubes h leading from the annular chamber g formed between the member f and the base c to any suitable suction device.
Patent GB-420381-A (GB)
Title: Improvements relating to vacuum braking apparatus
IPC: B60T13/46
Filed: 1933-05-31
Abstract: 420,381. Fluid - pressure brakes. BROWN, D. F., CADMAN, N. G., and WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. May 31, 1933, No. 15688. [Class 103 (i)] A valve 10 for vacuum brakes for effecting a local admission of air to the brake cylinder by passage 6 through a filter 8, a non-return valve 13 is provided to allow fluid to flow from the brake pipe passage 3 to the brake cylinder in the event of the filter becoming choked. The valve 10 is opened by a diaphragm 5 raised by brake pipe pressure in chamber 2.
Patent GB-475277-A (GB)
Title: Improvements in or relating to elevators and the like
IPC: B66B9/10
Filed: 1936-06-05
Abstract: 475,277. Endless belt or chain elevators; conveyer systems. SMITH, J. H. W. June 5, 1936, No. 15732. [Class 78 (i)] An endless belt or chain elevator is provided with load-carrying platforms each of which is pivoted at one edge to the chain or belt and at an opposite edge to a supporting link or links pivotally connected to an arm or arms rigidly attached to the chain or belt, the pivotal connection of the links to the arms being at a greater distance from the chain or belt than the pivotal connection of the platform to the chain or belt. In the embodiment shown, piles m of newspapers or the like are raised from a slotted table l by platforms i pivoted to brackets h, rigidly fixed to the belt d, and to links connected to brackets k, and are discharged on to a number of endless-belt conveyers O which transfer the papers to a roller-way v. The belts o pass over pulleys p p<1> and are preferably driven at a faster linear speed than the belt d, the pulley p<1> being driven by a belt q from a shaft e rotated by a motor y. The pulleys p may be adjusted relatively to the pulley c, being carried by arms r, pivoted at s and provided with extensions t adjustably held between stops u. A. board n prevents sagging of the belt d.
Patent GB-777891-A (GB)
Title: Screw slotting attachment for automatic lathes
IPC: B23G9/00
Filed: 1955-06-01
Abstract: 777,891. Screw - nicking attachments. MEGEL, G. E., and MANCIA, H. June 1, 1955 [June 10, 1954], No. 15785/55. Class 83 (3). A screw-slotting attachment for automatic lathes having means 32 for conveying a screw from the turning and parting tools 31, 31a to the two cutters 23, 24 of the attachment, comprises a support 8 on which the cutters are mounted to rotate in opposite directions and to be moved in opposite directions to cut the slot in a screw-head, thus preventing the formation of a burr. The support 8 is carried on an axially-adjustable arm 8b and carries a slide 9b, controlled by a cam 12 on the lathe camshaft 13, by a follower 11b and levers 11, 14, 15. The cutters 23, 24 are rotated by gears 25-27, and the cutter 24 is adjustable axially by a screw 19. In a modification, one cutter 34, Fig. 8, is carried on a lever 35 adjusted by a screw 36 so that the cutter takes a shallower cut than the finishing cutter 33. In a further modification, the cutters 37, 38, Fig. 10, are mounted on an oscillating lever 39.
Patent GB-546283-A (GB)
Title: Improvements in the manufacture of titanium pigments
IPC: C22B34/12
Filed: 1940-10-29
Abstract: 546,283. Titanium pigments. NATIONAL TITANIUM PIGMENTS, Ltd., WEBER, I. E., and BENNETT, A. N. C. Oct. 29, 1940, No. 15818. [Class 1 (iii)] In the preparation of rutile titanium dioxide pigments by hydrolysis of a titanium soluton to whch has been added a nucleatng agent, the nucleating agent is prepared from a titanium sulphate solution. This is made by the action of sulphuric acid or oleum on ilmenite and removal of part of the iron by crystallization to give, e.g. the proportion FE:TiO 2 =.2:1 and " Free Acid value" 40-65 per cent., and the nucleating agent is formed by the addition of an alkaline agent and subsequent heating to 75- 100‹ C. The " Free Acid value " of the solution after addition of the alkaline agent is arranged to between 10 and -50 per cent., and the titanium content is less than 100 grams Ti O 2  per litre. The alkaline agent may be caustic alkali, magnesium, zinc oxide, barium hydroxide or lime. The titanium solution to which the nucleating agent is added may be sulphate prepared by the action of sulphuric acid or oleum on ilmenite. from which part of the iron may be removed by crystallization and the ratio of TiO 2  in the form of a nucleating agent to that in the solution to which it is added may be between 5:95 and 10:90. The final heating for presentation of TiO 2  may be continued until the viscosity of the reaction solution reaches its maximum.
Patent GB-719345-A (GB)
Title: Banknote wallet or billfold
IPC: A45C1/06
Filed: 1952-06-24
Abstract: 719,345. Notecases. VALEXTRA SOC. PER AZIONI. June 24, 1952, [Nov. 21, 1951.] No. 1588/52. Class 18. A notecase comprises a spring loaded arm 7 at the join of each panel to clamp banknotes, each arm being pivoted at the top of a cylinder secured to the material of the case and its end 6 engaging a spring urged plunger 8 slidable in the cylinder.
Patent GB-1500865-A (GB)
Title: Distance counter attachment for golf carts
IPC: A63B55/60
Filed: 1976-04-20
Abstract: 1500865 Odometers OFA PETERSON 20 April 1976 15916/76 Heading G1K [Also in Division F2] An odometer assembly for a golf cart comprises a settable distance counter 13 mountable on the handle of the cart, a drive disc 22 securable to a ground-engaging wheel 10 of the cart and incorporating a ring of gear teeth 27, a gear unit 29 with a bracket 32 whereby it can be mounted adjacent the disc 22 with a pinion 31 therein meshing the ring gear 27, and a flexible cable drive 17 connecting the gear unit 29 to the counter 13. With the cable 17 connected to the counter at 16A, as shown, the indicia 14 register the yards or metres travelled by the cart. With the connection at 16, and the length of the hole being played being set initially on the counter, the indicia 14 show a decreasing figure as the cart travels, to provide a direct reading of the remaining distance to the hole. The disc 22 is diametrically split at 23, with interlocking lips (24), Fig. 3 (not shown), and is secured to the inner face of the ground wheel 10 by bolts 25. The bracket 32 clamps on to the axle 11 carrying the ground wheel 10. A second bracket 37 on the gear unit 29 loosely engages the rim 28 of the disc to hold the gears 27, 31 in mesh.
Patent GB-397446-A (GB)
Title: Improvements in furnace grates
IPC: F23H3/02
Filed: 1932-06-11
Abstract: 397,446. Furnace grates. GRAAFEN, F., 50, Moltkestrasse, Zwickau, Saxony, Germany. June 11, 1932, No. 16014/33. Divided on 397,633. [Class 51 (i).] In a furnace grate having longitudinal bars some or all of which are reciprocated to feed the fuel, the bars are cooled by means of stationary pipes traversed by a cooling liquid and located below the bars or between portions depending therefrom. In the form shown in Fig. 1, the bars b are of inverted U-shape and the cooling pipes c are disposed between the downwardly extending webs, while Fig. 3 shows a construction in which the pipes c are arranged between webs depending from adjacent bars b. The webs may be of sufficient depth to house not only the pipes c but also additional pipes n, Fig. 7, serving to deliver the cooling liquid to the inner ends of the pipes c. In the case of narrow bars, the pipes c may be of rectangular section or may have a gill extending upwardly into the space between the depending webs. Fig. 8 shows a grate consisting of alternate reciprocating and stationary bars b, b<1>, the grate being cooled by pipes c arranged in contact with the under surface of the fixed bars b<1>. When the grate is employed in a boiler furnace, the pipes c are connected in the boiler circulation system. Some or all of the bars may be formed with steps or teeth z on their upper surface.