baber/WOPTO huggingface dataset:
Patent GB-371557-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H1/34
Filed: 1931-03-19
Abstract: 371,557. Electric switch contacts. KUHN, C. W., c/o Cutler-Hammer, Inc., 12th Street, Milwaukee, Wisconsin, U.S.A. March 19, 1931, No. 8486. Convention date, March 20, 1930. [Class 38 (v).] The cylindrical carbon contact element 1, Fig. 1, forming the relatively fixed switch contact is clamped between fixed and movable supporting members 11, 9 the former of which is secured to the baseplate 4 by screws 10 and the latter is in the form of a strut pivoting about its lower end 13 so that its upper end slides with a wedging action against the lower face of the contact 1, the member 9 being clamped in position by a screw 15. The longitudinal adjustment of the contact 1 is regulated by a screw 12 with an enlarged head engaging the rear face of the contact 1 this screw being adjustable from the rear by a screwdriver when the clamping member 9 has been loosened, a U-shaped spring 17, Fig. 3, engaging flattened sides of the screw to hold it in its adjusted position. The movable contact 2 is in the form of a metal bolt with an enlarged contact head sliding loosely through a hole formed in a supporting member 5 clamped at its lower end to an insulated operating shaft 6 by a plate 20. A spring 23 has one end supported in a recess formed in the member 5, its outer end bearing on a raised projection 27 formed in a plate 22, Fig. 5, the lower recessed end 25 of this plate being pivotally supported in a recess 24 formed in the member 5 and the upper end being formed at 26 to engage the rear face of the enlarged contact head 2. Thus when the contacts are brought into engagement the spring 23 provides an adequate contact pressure, the loose mounting of the contact 2 in the holder permitting a self-aligning motion of this contact against the face of the contact 1. Current is led to the contact 2 through a flexible lead 31 coupled to the outer end of the contact together with a washer 29 which latter limits the inward motion of the contact 2 relatively to the holder 5. A pin 33 carried by the contact 2 slides in a slot 34 in the supporting member to prevent rotational motion of the contact within its holder.
Patent GB-1193931-A (GB)
Title: Improvements in the Formation of Wrappers with Tear Strips
Inventor: WILKINSON ALAN JAMES CASWELL
IPC: B65B11/08
Filed: 1968-02-21
Abstract: 1,193,931. Packaging. ROSE FORGROVE Ltd. 14 Jan., 1969 [21 Feb., 1968], No. 8539/68. Heading B8C. In a method of forming in succession wrappers of the kind provided with a tear strip extending from one edge of the wrapper, a web 11 of wrapping material to which is attached a web of tear-strip material 12 is fed towards a slitting station at which a pair of slits is formed in the material at positions one on each side of and adjacent the tear-strip web, and then to a wrapper severing station at which the web of wrapping material is cut along lines connecting the longitudinal edges of the web and leading extremities of the slits and along a line connecting the trailing extremities of the slits to complete severing of the wrapper from the web, thus leaving a tongue 33 of wrapping a tear-strip material extending from the wrapper. The webs 11, 12 are fed by rollers 13, 14 through a heater bar 18 to a rotating slitting device 19 incorporating a pair of blades 22 which pass in slots 23 in a support plate 24, and then to a cutting device 26 on a rotatable shaft 27 and having two adjustably mounted knives 28, 29 co-operating with a fixed blade 31, the knife 28 and blade being of greater width than that of the wrapper, and the knife 29 being of a width slightly greater than that of the distance between the slots 21. The severed wrapper lies in the path of an article 34 and is transferred therewith to folding elements by a pusher-bar 36.
Patent GB-972554-A (GB)
Title: Sealing device for a screw filter press
IPC: B01D29/11
Filed: 1961-03-08
Abstract: 972,554. Presses for liquid/solid separation. RUHRCHEMIE A.G. March 8, 1961 [March 18, 1960], No. 8555/61. Heading B1D. A closure mechanism for a screw extrusion press preferably takes one of the forms shown. In each case a compression spring acting through a part 6 or 106 presses a sealing member 5 or 105 against the annular outlet. Solid material issuing from the press passes through two annular outlets, namely, that between the sealing member and the filter (4 or 104), and that between the sealing member and the screw shaft (1 or 101).
Patent GB-232940-A (GB)
Title: Ignition systems and switches therefor
IPC: B60R25/04
Filed: 1925-03-31
Abstract: 232,940. Hemingway, W. April 28, 1924, [Convention date]. Compacts, arrangement of external; systems, electric.-For preventing the unauthorized use of the engine, a switch is associated with an automatic lock mechanism which comes into action at a point between the open and closed positions of the switch. In Fig. 3, which shows the switch in its open and locked position, the end of the cable 7 from the induction coil &c. is secured within a plug 12. Pins 10 penetrate the hardened steel casings and a ring 9 which is clamped between the plug 12 and a nut 11 engaging the reduced inner end of the plug. A longitudinal set screw 14 locks together the plug and nut. Within the casing 5 are also cylindrical blocks 20, 32, and 40 and spacing sleeves 18, 33, all of insulating material. Diametrally opposed longitudinal pins 21, 22 in the block 20 are in electrical connection with the binding post 23 and copper disc 18 respectively, the post 23 leading to the source of current, and the disc 18 pressing against the headed end of the cable 8. At right-angles to the pins 21, 22 is a second pair in circuit with binding posts which are connected to the terminals of a generator. Within the block 40 is a lock barrel 43 retained against complete withdrawal by a pin 45 and in its inner position allowing a bolt 46 to engage a slot 47. This bolt may be withdrawn by a key 48. The end of the barrel 43 presses against one end of a stem 31 of insulating material, the other end of the stem being guided within a recess 30 in the block 20. A spring 37 presses the stem against the lock barrel. Externally the stem is double-conical in shape, and is surrounded by a contact casing 38 open on its inner periphery. Within the casing 38 is a helical spring 39. On unlocking the barrel the stem 31 moves to the left, and the casing 38 with its enclosed ring rides over the largest diameter of the stem into engagement with the contacts in the block 30, thus closing the circuit. In pressing in the barrel 43 to lock it and open the circuit, the arrangement is such that the bolt 46 falls just before the stem 31 disengages the contacts. There is sufficient slackness between the bolt 46 and recess 47 to ensure such disengagement.
Patent GB-254383-A (GB)
Title: Improvements in the control of prime movers
IPC: F03B15/18
Filed: 1925-04-01
Abstract: 254,383. Gilkes &. Co., Ltd., G., and Crewdson, E. April 1, 1925. Electric and magnetic.- -The .exciting current of an eddy current brake 3 compensating for the difference between the normal output of a prime mover and the actual load at anv moment is varied by a centrifugual governor 23 controlling the rheostat 21. The brake drum may be water-cooled and the electromagnets 20 have a single coil winding supplied with current from a separate source 22 when the prime mover is not driving a dynamo.
Patent GB-250568-A (GB)
Title: Improved process of and apparatus for mixing concrete, mortar, chemical products and the like
IPC: B28C5/20
Filed: 1926-03-30
Abstract: 250,568. Ruef, H. April 8, 1925, [Convention date]. Rotary mixers.-A mixing apparatus for con- .crete, &c. comprises a rotating drum into which is wheeled a truck, &c. containing the material and having a discharge door through which the material passes into the drum, blades upon which return the material to the truck; the material is passed through the truck till the mixing operation is completed, when the door is closed and the truck reloaded and removed. The drum 1, fitted with blades 6 between end walls 7, is mounted on rollers 2, and is driven by a pinion 4 and spur gear 5. The truck 10, which is tiltable, is wheeled on fixed rails 8, and the container 11 is provided with inwardly-sloping walls 12 closed by a hand-actuated door 13. A screen 15 prevents material dropping on to the truck. In modifications, the receptacle 11 is provided with a sloping bottom and a discharge opening at one side, or may be fitted with internal adjustable grids to expedite the mixing.
Patent GB-917531-A (GB)
Title: Improvements in or relating to automatic central buffer couplings and pipeline couplings therefor
IPC: B61G5/08
Filed: 1961-03-09
Abstract: 917,531. Pipe couplings. VIELMETTER, J. March 9, 1961 [March 10, 1960], No. 8750/61. Class 99(1). [Also in Group XXXII] A pipeline coupling 5 is arranged below a Willison railway vehicle coupler 3 (see also Group XXXII) and comprises spaced cylindrical housings 7, 13, a coupling tube 19 longitudinally movable in the tube 13 and mounted for angled movement in packing 17, a spring pressed valve 33 seating against a ring 35, a valve 23 which may close the mouth of the air line socket 11 when the tube 19 is retracted, and holes 25 which. permit air to pass from the pipeline 9 to the valve 33. The tube 19 is pressed by a spring 51 against a flange 39 in a protecting tube 41, and the tube 41 is guided by a groove 50 and pressed by a spring 53 against an abutment 15 on the housing 7. In order to disconnect the pipeline coupling the tubes 19 and 41 may be telescoped to seat the valve 23 over the socket 11 by pulling a rod 55 attached to the tube 41. The tube 41 is bounded at its front end by a saw toothed arrangement comprising parallel vertical planes 43, 45, and a vertical plane 47 in the longitudinal axis of the coupling. In operation, the vehicle coupler horns and jaws 1, 2, and 4 guide the pipe line couplings until their saw toothed ends mate as shown in Fig. 1, in which position the tubes 19 and the valves 33 are displaced longitudinally to let air flow through the tubes and the holes in the wall 31. The rings 35 seal the gap between the tubes 19.
Patent GB-328392-A (GB)
Title: Vehicle wheel
IPC: B60B23/04
Filed: 1929-03-18
Abstract: 328,392. Lapolice, E. March 18, 1929. Detachable-rim attachments to wheels. - A detachable rim 12 has blocks 251 on its inner surface adapted to be inserted through recesses 16 in the outer flange 14 of a felloe 11 and to lock with blocks 25 provided in a channelway between inner and outer flanges 14, 15 on the felloe, plates 28 being provided on the rim to cover the recesses 16 when the rim is turned and locked on the felloe. Offset flanges 17 on the felloe adjacent the recesses 16 engage with angular flanges 29 on the rim plates to prevent complete transverse movement of the rim 12 across the felloe 11. The rim is locked on the felloe by a single movement of a non-removable manually-operated locking lever 18 pivoted to the felloe and turning an eccentric or cam which engages a lug 30 on the rim. The lever 18 is resilient and is depressed, when the rim and felloe are locked together, to depress a stem on the outer end into a depression in the felloe, where it is locked by a member 33 on a flexible stem 32 engaging a slot in said stem. A stub-tube 34 is provided in the felloe for the passage of a nail or the like to unlock the locking lever 18.
Patent GB-214244-A (GB)
Title: Improvements in or relating to piano actions
IPC: G10C1/06
Filed: 1924-04-07
Abstract: 214,244. Sautier, A. April 9, 1923, [Convention date]. Pianofortes combined with other keyboard stringed instruments; silencing; keyboards; actions.-In a pianoforte having means, also operable from the keyboard, for plucking as well as striking the strings, either the plectra or the hammers being capable of being rendered inoperative,. the plectra 16 mounted on arms 18 connected to the cross-rail 25 by blade-springs 27, are operated through adjustable buttons 19 on the raising of the usual dampers 21 by the keys 1. The rail 25 may be moved longitudinally either by a controlbar, thus putting the plectra out of action by removing the buttons 19 from the action of the dampers, or by a pedal or knee-lever to regulate the intensity. The hammers 5 may be rendered inoperative by raising the actions 4 from the pilots 2 by means of a rod 15, which turns an arm 12 acting on a bar 10 pivoted at 11<1>, springs 14 attached to the keys 1 being depressed by the front part of the bar 10 to prevent the forward ends of the keys from dropping.
Patent GB-860990-A (GB)
Title: Tractor change-speed transmission and differential assembly
Inventor: SIEVING ALFRED WILLIAM
IPC: F16H37/08
Filed: 1959-03-13
Abstract: 860,990. Change-speed gear casings. CATERPILLAR TRACTOR CO. March 13, 1959, No. 8821/59. Class 80 (2). [Also in Group XXXI] In a tractor wherein a change-speed gear housing 16 is disposed rearwardly of a main housing 10 which supports final drive half-axles 21 extending from a differential housing 22 and forwardly supports an engine 12, the changespeed gear housing 16 and the differential housing 22 are bolted together to form a unit, which is bolted to the main housing 10 and is aligned therewith by cylindrically machined spaced surfaces 31, 31a. In Fig. 2, the surfaces 31, 31a are formed on the differential housing 22 which supports the bevel pinion 19 meshing a differential-cage bevel-wheel 20, and the changespeed gear is of the epicyclic type wherein input and output shafts 15, 17 extend from an auxiliary housing 37 bolted at 38 to the housing 16 and are respectively splined to the engine shaft 13 and the bevel pinion 19. Bolts 23 secure the housings 16 and 22 together and bolts 33 extending through the flanges of both said housings secure the unit thus formed to the main housing 10. The said unit may be removed from the main housing 10 upon withdrawal of the half-axles 21 or the change-speed gear housing 16 alone may be removed from the housing 10 without disturbing the differential housing 22 and the half-axles 21. Sealing rings may be fitted between the change-speed gear and differential housings, and at the surfaces 31, 31a. In Fig. 3 (not shown), the surfaces 31, 31a are respectively formed on the housing 16 of the change-speed gear which is of the countershaft, constant mesh type, and the differential housing 22 which is bolted to the housing 16 at a position inside the main housing 10, thereby necessitating removal of the unit for separation of the housings 16, 22.
Patent GB-1044808-A (GB)
Title: Improvements in and relating to dry cells
Inventor: WOLFE FRANCIS JULIUS LEMOYNE
IPC: H01M6/22
Filed: 1964-03-03
Abstract: 1,044,808. Primary cells. UNION CARBIDE CORPORATION. March 3, 1964, No. 8847/64. Heading H1B. A cell having a container-anode and a depolarizer has a water and/or electrolyte reserve in the cell in the form of a mix-penetrating gelatinous solution in contact with the exposed surface of the depolariser mix, the solution soaking into the depolarizer to augment moisture in the cell.
Patent GB-844092-A (GB)
Title: Sound absorption, sound insulation and/or heat insulation panel
IPC: E04B1/86
Filed: 1958-03-20
Abstract: 844,092. Moulding insulating panels. PALMER, P.A. March 20, 1958 [March 21, 1957 ; April 2, 1957], No. 8905/58. Class 87(2). [Also in Group X] A composite gypsum or plaster panel for heat and sound insulation has a face 1 of hard plaster supporting rigidly a porous plaster member 3, which also contains synthetic resin. Either or both layers may be plural and the hard layers may be perforated for acoustic or ventilating effect. The panel may be moulded by introducing a partly hardened moulded block of the porous plaster into a mould containing wet plaster destined to become the hard surface layer.
Patent GB-681218-A (GB)
Title: Improvements in or relating to crutches
Inventor: WILLITS ALFRED
IPC: A61H3/02
Filed: 1950-04-11
Abstract: 681,218. Crutches. BOOTH & CO., Ltd., J. April 11, 1951 [April 11, 1950], No. 8932/50. Class 81 (ii). An adjustable crutch is made with two resilient side members 10, 10 rigidly spaced apart at the top by the shoulder support 12 and held together at the bottom by a tubular foot member 26 so as to grip the hand piece 25 between them. The handpiece has projections at each end which engage in corresponding recesses in the side members, there being a number of such recesses so that the position of the hand piece can be adjusted as desired. The foot member 26 carries a rubber foot 29 and its position relative to the side members is variable by means of internal tubular spacers.
Patent GB-595186-A (GB)
Title: Improvements in or relating to holders for radio valves and other electric dischargedevices
IPC: H01R33/76
Filed: 1943-09-27
Abstract: 595,186. Two-part couplings. JACKSON, D., and PYE, Ltd. Sept. 27, 1943, No. 8972/44. Divided out of 595,178. [Class 38 (i)] A socket for holding a thermionic valve or other plug-in device has contacts 20 each formed by folding a metal strip to provide a soldering tag 28 and a pair of contact grips 29 spaced apart and bent to receive the valve pin and provide line contacts therewith, the contacts being mounted in an insulating body 21 in holes 22 having an enlarged upper bore 25 to receive the grips 29 and a smaller lower bore 26 to fit the tag 28. The strip is prolonged at its ends to form extensions 30 that are bent down outside the free ends of the grips 29 and pass with the tag 28 through the lower bore 26. The ends 31 are then bent outwards against the under surface of the body 21 to hold the contact down against the shoulder 27 between the two bores in the hole 22. The bores may be rectangular to prevent the contacts turning therein but there may be some play to allow self-alignment. The insulating body may be a single member or it may be built up of sectors as described in Specification 595,187 which may be held in assembled relationship by an exterior casing such as described in Specification 595,178.
Patent GB-236652-A (GB)
Title: Improvements in and relating to means for controlling the admixture of two fluids
IPC: G05D11/00
Filed: 1924-04-09
Abstract: 236,652. Evans, W. E., (Huessener, K.). April 9, 1924. Valves controlled by pilot or relay valves.-A valve device for controlling the mixture of two fluids and particularly applicable to controlling the supplies of gas and air to gas-fired furnaces in large scale industrial oscillations has a valve in one or both conduit actuated by a power device supplied from an independent source and under the control of a relay subject to the pressures existing in the two conduits. In the form shown in the Figures, the gas conduit is provided with a manually-actuated valve b<1> and the air conduit has a valve a<1> connected by an arm a<2>, lever a<3>, and link a<4> to a piston o working in a cylinder p. The two ends of the cylinder p are connected by pipes p\ p<2> to ports m<4>, m<5> in a casing m controlled by an auxiliary valve n adapted to admit pressure admitted through ports m<1>, m<2> to one of other of the ports m<4>, m<5> while the other port is connected to the exhaust port m<6> through an annular groove n<3>, The spindle n<1> of the auxiliary valve is connected to a lever loaded by springs k, l and connected to liquid sealed bells g, h subject to air and gas pressures admitted through pipes c, d. The main valve may be actuated electrically under the control of a switch actuated by the liquid sealed bells.
Patent GB-330969-A (GB)
Title: Improvements in or relating to the control of electrical transformers
IPC: H02H7/12
Filed: 1929-03-20
Abstract: 330,969. Weekes, W. March. 20, 1929. Systems depending on static transformers.-In a supply system including a transformer applicable to supply a direct current circuit through mercury-arc rectifiers, in order to prevent the rush of current when the transformer is re-connected to the load after operation of the automatic cut-outs in the load circuit provision is made for automatically reducing the secondary voltage when the load is above a predetermined amount. This may be effected by choking coils in the primary or secondary circuits which are normally short-circuited by automatic switches controlled in accordance with the load current, and the choking coils may further be arranged to be in circuit on the initial switching-in of the supply. As shown in Fig. 1 applied to a transformer having a star-connected primary 1 the choking coils 4 are arranged in the connections to the starpoint 3 and are adapted to be short-circuited by automatic switches 6. A similar arrangement may be employed with a star-connected secondary winding. In the case of a delta-winding the choking-coils with their automatic short-circuiting devices are included in the line connections. The complete control arrangement employed in connection with the modification according to Fig. 1 is shown in Fig. 4 in which the 6-phase secondary winding supplies a D.C. load circuit 10, 11 through a mercury-arc rectifier 8. A time lag relay 12 is connected across lines 10, 11 and completes the circuit of a relay 15 which in turn completes the circuit of a relay 19, the movement of which controls the automatic short-circuiting switches 6 on the primary side. Thus on switching in a 'reduced voltage is first supplied. If the load-conditions are unsuitable for the full-voltage the relay 22, the winding of which is across a resistance 23, by opening contacts 17 prevents operation of the relay 19 and switches 6. The relay 19 on operation completes a maintaining circuit through contacts 21 under the control of the overload relay 24 so that a reduction of voltage is produced immediately this relay is operated. In a further modification in which choking coils having an intermittent rating may be employed, three-contact automatic switches are employed which after opening the short-circuit around the coils move to a further position in which a lower voltage transformer tapping is connected.
Patent GB-674036-A (GB)
Title: Improvements in or relating to the preparation of solutions for the production of metallic gallium
IPC: C22B58/00
Filed: 1948-03-31
Abstract: Alkali metal aluminate solutions containing gallium are treated, e.g. by the addition of lime to the solution at above 100 DEG F. to convert sufficient of the alkali metal aluminate to alkali metal hydroxide and insolubilized aluminium values that the atomic ratio of dissolved aluminium to dissolved gallium is p  25-100:1, the alumina and gallium oxide are co-precipitated by an acidic material, e.g. carbonic acid, carbon dioxide or sodium bicarbonate, the precipitate dissolved in an acid or alkaline solution, e.g. caustic soda. Gallium may be recovered by electrodeposition.  The precipitate, which is preferably heated to 350-600 DEG C. to destroy organic matter, and to allow a more ready dissolution, may contain gallium oxide equal to 2 per cent by weight of the alumina.  Part of the dissolved aluminium may be precipitated as alumina prior to the addition of lime. Specifications 671,356 and 674,104 are referred to. Reference has been directed by the Comptroller to Specification 622,560.