baber/WOPTO huggingface dataset:
Patent GB-510952-A (GB)
Title: Improvements in and relating to lubricating oils and greases
Filed: 1938-02-09
Abstract: 510,952. Lubricants ; oils. STANDARD OIL DEVELOPMENT CO. Feb. 9, 1938, No. 4036. Convention date, June 22, 1937. [Class 91] [Also in Group IV] An improved modifying agent for lubricating oils and greases useful, e.g., as a pour point depressant, for blending,: or as an assistant in de-waxing oils by chilling in the presence of a diluent, is prepared by condensing a paraffinic substance having a hydrocarbon chain of at least 10 carbon atoms with a previously polymerized, unsaturated, isocyclic compound which contains unsaturation in the nucleus only. As paraffinic substance there may be employed those with a hydrocarbon chain of at least 10 or 12 carbon atoms, preferably paraffin wax chlorinated to the extent of 10 to 15 or more per cent., olefins containing a hydrocarbon chain of at least 10 carbon atoms and the corresponding alcohols, ethers and ketones. Specified isocyclic compounds include polymers from alky ated aromatic hydrocarbons, from naphthalene, diphenyl, dinaphthyl, dihydronaphthalene, dihydrodiphenyl, cyclohexene or its alkylated derivatives, and from phenols, phenyl ethers, esters, or polymerized amines; copolymers of an aromatic hydrocarbon with a phenol or an amine or of a phenol with an amine, may be employed. The condensation reaction is carried out at a temperature between atmospheric and 250‹F. with 10-20 parts of polymerized iso-cyclic compound to 100 parts by weight of paraffinic substance together with from ¢-5 or more parts of a halide catalyst, e.g., anhydrous aluminium chloride, zinc chloride, iron chloride or boron fluoride. Solvents, e.g., saturated hydrocarbons, carbon disulphide, poly-chloraliphatics and di- or polychloraromatics, may be present. The modifiers are separated by hydrolysis of the reaction mixture, settling, withdrawing sludge and distilling off solvent and unreacted materials. A viscous product is obtained having pour point inhibiting properties and, in additions of 2-5 per cent. or more, viscosity increasing properties. An example is given of the production of a modifying agent by condensing' polymerized dihydronaphthalene suspended in kerosene, with chlorinated paraffin wax with the aid of aluminium chloride ; and of its use as a pour point depressant and viscosity augmenting agent. The products may be used as compounding agents for heavy lubricants, e.g., gear oils, and in greases containing alkali, alkaline earth and heavy metal soaps.
Patent GB-1338229-A (GB)
Title: Fuses
IPC: H01H85/153
Filed: 1971-04-19
Abstract: 1338229 Fusible cut-outs ERNEST H DERRICOTT Ltd 19 April 1971 [28 Jan 1970] 4068/70 Heading H2G Planar tags 13 are attached to the end cap 10 of a cartridge fuse by pushing projections 17  through corresponding holes in the end cap and riveting or soldering them there. There may be two parallel tags on each cap, they may be of copper, and the fuse body may be ceramic and contain a base metal or alloy tape or wire fusable element.
Patent GB-740262-A (GB)
Title: Electric contact devices having magnetic means for increasing the contact pressure
IPC: H01H50/42
Filed: 1953-02-13
Abstract: 740,262. Electromagnetic relays. GOSSEN & CO.,GES., P. Feb. 13, 1953 [Feb. 16, 1952], No. 4125/53. Class 38(5) A moving coil relay in which a contact operating arm biased by a return spring carries an armature co-operating with a magnet to increase the contact pressure, is characterized by magnetic screening means, so arranged that the magnet is unable to influence the armature until the current in the moving coil attains the value at which the contacts are to be closed, a very small further movement of the arm exposing the armature to the influence of the magnet so that the contacts are closed with a sufficient pressure. According to Fig. 5, a soft iron screen 8 is slotted at 9 to permit movement therethrough of an armature 6 on an arm 3 controlled by a moving coil 1. When the armature passes outside the screen, it is influenced by an electromagnet 7 and contacts 10, 10<SP>1</SP> supported by resilient arms 4, 4<SP>1</SP> are firmly closed. Another arrangement, Fig. 8, comprises a pot electromagnet 12 having its magnetic circuit closed by a hemispherical end 14 which acts as a screen by keeping the stray field at a minimum. Hence the armature 6 is not affected by the electromagnet 12 until it enters a slot 15 formed in the end 14. To provide a degree of damping for the arm 3 in the region where it is under the influence of the contact-pressure producing magnet, the moving coil may carry an additional winding having its ends connected through a rectifier and resistance (Fig. 11 not shown). The damping winding is so positioned that it is not affected by the magnet 2 of the coil 1 until the latter has turned through a certain angle. The recti- 'fier ensures that the damping action is present only when the armature moves away from the magnet 7. Fig. 12 shows an arrangement for automatically de-energizing the magnet when the contacts are closed to permit the arm 3 to return from its contact-making position without the application of additional restoring forces. Two magnets 103, 104 and two sets of contacts 101, 105 are provided corresponding to the maximum and minimum positions of the arm 3. The maximum magnet 103 is initially energized over contacts 106 of a relay 102. In response to a maximum value of the current in the coil 1, arm 3 closes contacts 101 and relay 102 is energized whereby magnet 103 is de-energized, minimum magnet 104 is energized across contacts 107, and a holding circuit for the relay 102 is completed across contacts 107 through a resistance 23; also, contacts 108 complete an external circuit connected to 117, 118. If now the current in the coil 1 decreases the arm 3 is returned by its spring and when the current attains its minimum value the contacts 105 are closed whereby relay 102 is short-circuited. Thus the magnet 104 is deenergized by the opening of contacts 107 and the magnet 103 energized through contacts 106 and the arrangement is then in its initial condition.
Patent GB-123839-A (GB)
Title: Improved Means of and Apparatus for Purifying Benzol and other Oils and Washing or Mixing Two Liquids of Different Specific Gravity.
Inventor: BLYTH MEREDITH WUNTER
IPC: B01D11/04
Filed: 1918-03-11
Abstract: 123,839. Blyth, M. W., and Miles, T. V. March 11, 1918. Mixing fluids in flow. - Apparatus for purifying benzol, petroleum, carbolic acid, and tar acids generally comprises an automatic device for supplying reagents, a coil in which the reaction takes place, and a series of washing vessels. In the apparatus shown, the material to be treated, such as benzol, passes from a tank a to a tank c having two outlets, regulated by adjustable valves d. From one of these outlets the benzol passes to a tank f containing a reagent, such as sulphuric acid. An amount of acid proportional to the flow of benzol is displaced and passes by a pipe g to join the benzol escaping from the second outlet of the tank c. The benzol and acid pass together through a coil e, where the desired reactions take place.
Patent GB-575218-A (GB)
Title: An improved machine for the electric detonation of explosive charges
IPC: F42D1/05
Filed: 1944-03-07
Abstract: 575,218. Driving dynamos. LLOYD, H. March 7, 1944, No. 4240. [Class 35] A generator for detonating explosive charges is driven by a hand-wound spring motor released by a push-button which is locked until the spring is fully wound. In the form shown, the charge is detonated by the discharge of a condenser charged through a rectifier C by a rotary magnet generator A, B driven from the spring motor b through gearing g<1>, g<2>, i<1>, i<2> and a one-way coupling h, the spring motor' being wound by a key applied to spindle d also driving through a one-way coupling. The spindle d also drives at very low speed a cam l<1> co-operating with a detent m<2> preventing operation of the pushbutton o until the spring motor is fully wound. Operation of the push-button removes brakes z from the generator which is then driven by the motor and during the drive the necessary circuit changes are made at contacts t<1>-t<4>.
Patent GB-837295-A (GB)
Title: Improvements in and relating to process and apparatus for refining crude naphthalene
IPC: C07C7/14
Filed: 1959-02-06
Abstract: Crude naphthalene is purified by slowly heating the cooled, solidified naphthalene thereby causing impurities to melt, draining away the melted impurities leaving a product which is progressively enriched in naphthalene and recovering the naphthalene when the desired purity has been attained.  The p  purification is effected in apparatus having filtering means near the bottom and heating and cooling means in the upper section.  A liquid having a specific gravity greater than molten naphthalene, e.g. aqueous sodium hydroxide, is run in to fill the bottom section and molten naphthalene is run into the top section and solidified by cooling. The bottom section is emptied and the heating begun.  The molten naphthalene containing impurities which is drained away may be recycled to an earlier step in the process.  In general once the melting point of the crude naphthalene has been exceeded, the temperature reached will be the melting point of the naphthalene and when the desired purity is reached as indicated by this temperature the remaining naphthalene may be recovered by melting.  The heating and cooling means may comprise tubes having attached fins or vertical narrow cells having baffles to cause the heating or cooling fluid to follow a long path.
Patent GB-761893-A (GB)
Title: Improvements in or relating to resilient fastening elements for railway and like rails
Inventor: JAMES OSWALD HOWARD
IPC: E01B9/10
Filed: 1954-02-13
Abstract: 761,893. Wood-screws; nuts. GUEST, KEEN & NETTLEFOLDS (MIDLANDS). Ltd. Jan. 28, 1955 [Feb. 13, 1954], No. 4283/54, Classes 89 (1) and 89 (2). [Also in Group XXX] A rail-fastening element has an anchor-portion for screw-threaded engagement with a sleeper or anchor-member fixed thereto, and a rail or chair flange-engaging arm integral with the anchor-portion and formed as a loop to bear on or against said flange, the loop being helical and extending in the opposite direction to the threads. In one arrangement the element is a spike 11, Fig. 1, having a screw-threaded end 10 and an arm 13 integral with the other end. The spike secures a rail-flange 20 to a bearing-plate 16 and this plate to a sleeper 18, and each arm is supported by a projection 22 having an arcuate face 23 engaging the arm. In another arrangement, the spike is made from ovalsection stock, twisted to form the screw-thread, and the arm may be bent to form a C in plan with the free end bent parallel with the spikeshank to engage the edge of the rail &c. flange. In another arrangement the element is a nut having a body 40, Fig. 7, and arm 46, the body having a screw-threaded bore to engage a bolt 42. The body may have a slotted portion 48, the screw-thread therein being of slightly smaller diameter, whereby the nut is locked on the bolt.
Patent GB-1420053-A (GB)
Title: Pin ball game apparatus
IPC: A63F9/00
Filed: 1974-01-30
Abstract: 1420053 Pin-ball game MARVIN GLASS & ASSOCIATES 30 Jan 1974 [21 Feb 1973] 04294/74 Heading A6H [Also in Divisions F2 and G5]  A pin-ball game comprises an inclined playing surface, a launcher and a target 24 having a guide rail 172 and means 180 for propelling a ball 22 round the rail to direct it to another part of the surface. Depression of one end of a lever 48 causes the other end 42 to raise a ball from a storage chute 28 onto a delivery slope 50. Ball flippers 68 are operated by spring- returned levers 70 which can be pulled towards simulated handle-bar grips 72. Operation of each lever also rotates a wheel (136 Fig. 2) bearing centrifugally-operated strikers which engage a diaphragm (116) to simulate the revving noise of a motor-cycle.  Four targets 24a-d each have a propelling ring 180, Fig. 6, carrying ball strikers 182, all the rings being rotated through a common belt by a battery-driven motor switched on by a thumb-lever 208 attached to a contact below the table. A ball engaged by a striker may be flung off towards another target or towards a bell 26. A ball striking the bell moves it to advance a ratchet scoring-device 214. If a ball is flung into the storage channel 28 through a recess 242 it is trapped by a ridge 248, but a subsequent ball will knock the first ball so that it is returned to the player down the channel. A channel 250 may be used for scoring as well as indicia-marked partitions 254.
Patent GB-1371396-A (GB)
Title: Concrete mixers
IPC: B28C5/46
Filed: 1972-11-28
Abstract: 1371396 Concrete mixers J O H N S O N MACHINERY Ltd 28 Nov 1972 [29 Jan 1972] 4310/72 Heading B1C  A concrete mixer of the kind having one or more shovels 5 movable relative to a mixing tub 5, has a steam supply pipe 6 for the or at least one shovel the pipe 6 being disposed close to and on the trailing side of a support arm 4 for the shovel and terminating at an outlet 9 at the trailing side of the shovel so that, in use, steam is injected into the cavity created behind the shovel in the mix. The shovels may rotate in a stationary container or the shovels be stationary and the container rotate.
Patent GB-104923-A (GB)
Title: Improvements in or relating to Steering Gear for Motor Vehicles and the like.
Inventor: SOLOMON FRANK HARRY
IPC: B62D1/16
Filed: 1916-03-23
Abstract: 104,923. Solomon, F. H. March 23, 1916. Unshipping steering hand-wheels.-The steering-post is pivoted to permit the hand-wheel to be displaced to facilitate the driver's entering and leaving his seat. The joint V is normally covered by a sleeve U, which is raised by means of a metal tape chain K passing over a pulley L and operated by a slide F riding in a groove in one of the spokes of the wheel. The sleeve is returned by a spring Q, this return being prevented when the wheel is displaced, by a spring catch which is released when the post is returned to its driving position.
Patent GB-830507-A (GB)
Title: Improved caliper joints for orthopaedic splints
IPC: A61F5/01
Filed: 1955-02-14
Abstract: 830,507. Splints. SUTER, F. E., [Representative of SUTER, W. F.]. Feb. 14, 1956 [Feb. 14, 1955], No. 4379/55. Class 81 (2). In a splint pivoted at the knee by a caliper joint the two side members 1, 2 are jointed on a pivot-pin 8 passing through two wing extensions 6 on member 1 and a tongue or eye member extending from member 2. A spring 9 is adjustably secured to the member 1, at one end, while its other end is connected through an inextensible connection, such as a chain 4, to the lug on side member 2. In the bent positions of the joint the chain runs over a roller 13 mounted between the extensions 6. Preferably the pivot-pin 8 is located behind the centre line of the side members 1, 2, when these are aligned, so that the imposition of a load on the joint tends to prevent it bending.
Patent GB-872650-A (GB)
Title: Continuous-flow type heater with diaphragm controlled water flow regulator
IPC: F24H9/20
Filed: 1958-02-11
Abstract: 872,650. Valves. VAILLANT, H., [trading as VAILLANT KOMM.-GES. JOH.]. Feb. 11, 1958 [May 31, 1957], No. 4386/58. Class 135. A flow regulator for a gas-fired water heater has a valve member 17 controlled by a spring- loaded diaphragm 10 acted on by differential pressure arising at a Venturi throat 21 in the main flow passage. A further flow passage 24 is controlled by a valve 26 for regulating the outlet temperature of the water from the heater by varying the rate of flow of water through the regulator. A flap member 27 pivoting about a fulcrum point 28 is arranged so that when the diaphragm is in its lowermost position the flap closes the Venturi passage and the passage 24. The portion of the valve flap closing the Venturi passage is provided with a small orifice to allow a restricted flow. Alternately a passage 32 may be provided. When the tap 6 is opened the pressure in chamber 11 is relieved through the valve 23 and passage 22, the rate of upward movement being governed by the valve 23. The upward movement of the diaphragm 10 opens the valve 8 in the gas supply line to the heater. On the upward movement of the diaphragm 10 the valve flap 27 is retained in the closed position by the pressure in chamber 12, until this pressure is reduced to the regulating pressure by means of leakage through the orifice in the valve plate or the passage 32, whereupon the valve 27 opens under the action of spring 30 and allows water at the controlled pressure to flow to the heater.
Patent GB-253568-A (GB)
Title: Improvements in or relating to tractor-trailer combinations
IPC: B62D53/06
Filed: 1925-02-17
Abstract: 253,568. Dewing, L. Feb. 17, 1925. Couplings for tractors. - In tractor. trailer combinations spring means are provided for transferring part of the load from the front wheels of the trailer to the rear wheels of the tractor. The simplest form is shown in Fig. 4. A spring 17 is pivoted to the draw-bar h. By turning a wheel A on a screw 16 the weight on the leaf springs d is transferred to the spring 17 and thence by the bar h to the tractor.. In another form, Fig. 2, a double leaf spring n is suspended on shackles p, o from a nut q and the turntable c. The springs n are connected with the trailer by a buckle m. The rotation of the screw r has the same effect as in Fig. 4. In all cases the rear ends of the springs d are fixed and the front ends free to slide.
Patent GB-177657-A (GB)
Title: An improved envelope
IPC: G09F3/14
Filed: 1921-02-07
Abstract: 177,657. Murray, S. M. Feb. 7, 1921, Envelopes.-An envelope to contain an invoice and act as a label for goods is formed from a strip of material adapted to be folded into three sections 4, 5, 7. The sections 4, 5 are secured together by gummed flaps 6, or by separate folded strips, to form an open-ended envelope, and the third section is folded over the open end. Perforations 9 in the three sections coincide when the material is folded, and the string for attaching the label to the goods is passed therethrough. The address is printed on the flap 7 and on the section 4, which is normally covered. The flan is detachable along a line of perforations 10 to serve as a receipt for delivery, and may be provided with perforations 11 for filing purposes.
Patent GB-589925-A (GB)
Title: Improvements in hasp fastenings
IPC: E05C19/08
Filed: 1945-02-23
Abstract: 589,925. Pinless hinges. PINSON, R. I. Feb. 23, 1945, No. 4570. [Class 65 (ii)] A hasp fastener in which the hasp plate 1 has a slot or slots 2 at the pivoted end to form a pivot pin or member 3 and a mounting plate 4 has a tongue or tongues 5 which is or are curled around the said pins or members to form a hinge socket 8, the curved wall of which projects beyond the plane of each face of the mounting, is characterised in that the mounting plate 4 is not arranged to project radially from the wall of the socket 8 but at an angle to a radial line, so that the hasp plate 1 and mounting plate 4 can lie flat on one another in the fastening position.
Patent GB-413780-A (GB)
Title: Inflatable body attachment for use in swimming and bathing
IPC: B63C9/125
Filed: 1933-02-15
Abstract: 413,780. Inflatable body attachments. PHILLIPS, A., 2A, Brookfield Avenue, Timperley, Cheshire. Feb. 15, 1933, No. 4575. [Class 77.] An inflated rubber bag a is provided with attached braces b which pass over the shoulders, under the arms, and through a loop or loops c on the part of the bag adjacent to the back of the wearer, and are buckled round the waist.
Patent GB-822258-A (GB)
Title: Metal frame for windows and doors
IPC: E06B3/263
Filed: 1958-02-12
Abstract: 822,258. Windows, doors, glazing. ELTREVA A. G. Feb. 12, 1958 [Aug. 12, 1957], No. 4591/58. Class 20(3) A window or door frame is in two parts a, b with opposing faces channelled at a<SP>1</SP>, b<SP>1</SP> to receive synthetic plastic strips c which secure the two parts together. As shown the window sash is similarly constructed and is double glazed the panes bedding in putty p which is retained by glazing strips. When closed the window seals against the resilient member d.
Patent GB-394754-A (GB)
Title: Improvements in or relating to the manufacture of rubber compositions
IPC: C08K5/00
Filed: 1932-02-18
Abstract: An acid salt (or such a mixture of the acid and base as to produce an acid salt) of ammonium or substituted ammonium including urea and thiourea, is included as an ingredient in a vulcanizable rubber mix. The salt decomposes with evolution of ammonia or amine at or near the vulcanization temperature.  The acid itself, for example, malonic, may also decompose with partial or complete loss of acidity.  Such an ingredient has a "delayed action" effect on vulcanization.  The base may be ammonium, alkylammonium, polymethylene ammonium, urea, alkylurea, thiourea or alkylthiourea.  Acids include citric, oxalic, tartaric, sebacic, adipic, sulphuric, phosphoric and malonic.  The salt may be introduced in solution, or in admixture with clay or other inert powder.  Two examples are given.  In the first Provisional Specification, examples include the use of normal salts of decomposable acids, normal urea and thiourea malonates being given specifically, and the second Provisional Specification refers to the use of salts, particularly acid salts, of decomposable bases. Specifications 381,189 and 394,007 are referred to.