baber/WOPTO huggingface dataset:
Patent GB-252135-A (GB)
Title: Improvements in four-stroke cycle internal-combustion engines
IPC: F01B7/14
Filed: 1926-04-20
Abstract: 252,135. Laforcade, M. A. J. de. May 12,1925, [Convention date]. Four-stroke-cycle engines; driving-gear; pumps, centrifugal. - The expansion ratio is made greater than the compression ratio by using two pistons in each cylinder, one 2 driving the main crank shaft 1, the other 8 connected to a half-speed shaft 3. The diagram, Fig. 5, shows in dotted lines the movements of the two pistons, the full line curve representing the volume of the working chamber during a cycle. The charge is supplied by a fan, the admission taking place as shown on the diagram from the point a, to b, compression b to c. The charge is ignited and expands to point d, the exhaust taking place from d to e. One or both of the pistons has a mushroom head of less diameter than the piston but filling up the space between the pistons at the end of the compression stroke. The crank throws on the two shafts are unequal. The fan is driven from the spindle of one of the wheels in the train connecting the crank shafts. The halfspeed piston 8 may control terminal exhaust ports. In a modified arrangement the main pistons 21 Fig. 6 are in the upper parts of the cylinders, adjacent pairs being connected to a common cross-head and thence by outside-rods to the main crank shaft 23<a>; the two sets of main cranks are at 180‹ to each other. The half-speed pistons in one cylinder pair are spaced at 180‹ to each other and in a plane at 90‹ to the plane containing the other pair. The pistons may be unequal in diameter.
Patent GB-1461613-A (GB)
Title: Crosspoint switch
IPC: H01H3/32
Filed: 1974-03-07
Abstract: 1461613 Electric selectors; cross-bar switches; fluid actuation of switches PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 March 1974 [15 March 1973] 10383/74 Headings H1L and H1N A cross-bar switch comprises solution bars 1 and switching bars 3 having at each cross-point a catch member 19 actuated by the relevant selection bar 1 and the relevant switching bar 3, the movement being successively parallel to the movement direction of the relevant selection bar 1 and the movement direction of the relevant switching bar 3, each catch member 19 actuating at least one electrical contact 43 by way of a coupling member 21 with two stable positions. The selection bars 1 are provided, near each crosspoint, with a recess 9 which extends transversely to the movement direction thereof and which forms a guide for the relevant catchmember 19, the length of the recess being at least equal to the stroke of the switching bars 3 which are provided, near each crosspoint, with a recess 11, the walls of which form a guide for the catchmember 19 and extend parallel to the movement direction of the selection bars 1. Firstly catch-member 19, integral with a part 17, is moved by selection bar 1 in the direction X into recess 11, then switching bar 3 is moved in the direction Y so that catch-member 19, 17 moves coupling member 21 to pivot pushing- member 27 about rounded portion 33 on actuation member 31 to depress it to depress contact spring 41 against contact springs 39 to close contacts 43. The left-hand crosspoint in Fig. 1 is shown unactuated, the right-hand crosspoint is broken away to show the contacts, these being in the closed position. To open the contacts, switching bar 3 is first moved and then selection bar 1. As the switching bar 3 is moved, pushing-member 27 is pivoted into recess 35 so that actuation member 31 is raised by spring 41 and the contacts opened. As shown, two sets of contacts 43 are operated at each crosspoint. Catch member 19 can be left in the closed position whilst other switches are operated by the bars. In a second embodiment, Fig. 4 (not shown) pushing-member (27) is a roller depressed by a cam slope (59) on the underside of coupling member (21) when member (21) is moved. Also recess 11 is not part of an enclosed space 65 in switching bar 3 but merely formed by two prongs 13, 15. In a modification, Fig. 5 (not shown) of the switching bar shown in Fig. 1 the space (67) is F-shaped instead of E- shaped as in Fig. 1. It is stated that the actuator to move the bars may be electromagnetic, pneumatic or hydraulic.
Patent GB-820554-A (GB)
Title: Improvements relating to heat exchangers
Inventor: DOBBINS DEREK ALFRED ROSSER
IPC: B21D53/04
Filed: 1956-04-05
Abstract: 820,554. Making heat exchangers. G.K.N. GROUP SERVICES Ltd. April 4, 1957 [April 5, 1956], No. 10386/56. Class 83 (2). [Also in Group XIII] A method of making a heat exchanger in which fluid passages 11, 12 are defined by spaced plates 10, and in which adjacent plates are separated by spacer elements 18 extending along the perimeters of the plates, comprises assembling the plates into a stack with the spacer elements interposed between adjacent plates, bonding together the plates and spacer elements and then removing parts of each spacer element to provide gaps or openings 27 (Fig. 2) each of which may comprise either a slot or a number of individual holes giving access to the interior of each passage. The union between the plates 10 and spacers 18 may be effected by furnace brazing, or by the argon arc welding process, no filler metal being utilized. Fig. 4 shows the arrangement of parts for the welding process. As shown, a ledge 16 formed in each plate serves to locate the spacers 18 in their correct position at the margin 15 of the plate, with the plate edges projecting slightly beyond the outer edges of the spacer elements. On welding, these projecting edges and the adjacent corners of the spacing elements liquefy into a pool which ultimately solidifies to form the cross-section indicated at 21 (Fig. 4). After bonding together the plates and spacer elements, the gaps or openings 27 (Fig. 2) are formed either by a saw, milling cutter or other abrading tool but preferably by spark machining, the sparking zone being immersed in a suitable liquid such as paraffin oil during the process. The plates and spacing elements are preferably of stainless steel and the spacing elements may be of square or rectangular or of tubular or channel section or of circular section wire rod.
Patent GB-101031-A (GB)
IPC: B23D61/16
Filed: 1916-07-25
Abstract: 101,031. Massachusetts Saw Works, Assignees of Hutton, A.). July 26, 1915, [Convention date]. Saws.-A saw blade, such as a hack-saw, is formed in sections comprising a body portion and a series of toothed sections connected end to end and to one edge of the body portion by overlapping lugs or joints. As shown, the body portion A is formed with recesses f, f<2>, alternating on opposite sides, in which are secured, by rivets such as m or by screws, plates or lugs g, Fig. 6, which project beyond the edge. The toothed sections B are formed with recesses k to receive the projecting parts of the lugs g, and with end recesses and projections on lugs i, engaging one section with another, and those on the end sections engaging with the recesses d in the shoulders b of the body A. The lugs i also are secured by rivets or screws m. The end shoulders j of the sections B butt one against another and against the shoulders b of the body A. The toothed sections B are all similar and interchangeable. Instead of separate plates g, lugs may be formed on and projecting from the edge of the body A. The rivets m are preferably formed with recessed ends, as shown in Fig. 9.
Patent GB-299334-A (GB)
Title: Phonographic apparatus for the purposes of foreign conversation or language teaching
IPC: G09B5/04
Filed: 1927-04-19
Abstract: 299,334. Cioffi, E. April 19, 1927. Apparatus specially designed /or purposes of conversation or language teaching; raising, positioning, and lowering sound-boxes; multiple machines.-Consists in phonographic apparatus which is intended for the purpose of enabling a conversation to be carried on between two persons who have no knowledge of each other's language, or which may be used for teaching languages. The apparatus comprises a dial bearing a vocabulary of words or groups of words in one language, a pointer movable over the dial, and mechanism whereby the movement of the pointer suitably positions the sound-box of a gramophone or phonograph upon a special record having the words of the vocabuary as translated into the second language recorded therein in proper order, so that the translation of the word or group of words indicated by the pointer may then be reproduced phonographically. For the purpose of conversation it is proposed to use two such appliances (which may be contained in a single box), each provided with a vocabulary in the user's language, and corresponding translation records. As shown, the lid of a box containing the two gramophones, only one of which is shown in Fig. 1, carries dials a, b on which words are inscribed in two languages, one: dial for each language. A pointer 1 is pivoted in the centre of each dial on a spindle carrying a wheel 2. This gears with a wheel on a worm 4 adapted to engage, when the lid is closed, with a worm-wheel 5 on the tone-arm 11 of the corresponding gramophone. The tonearm is normally held up by a spring 7, but when the sound-box has been suitably positioned, by turning the pointer, it is depressed on to the record by means of a button 8, acting on the tone-arm through a lever 9 pivoted on the lid. Other kinds of mechanism, such as parallel linkwork, may be used for transmitting the movement of the pointers in the required manner to the tone-arms. The words in the vocabularies may be arranged in columns, instead of on circular dials. Modifications are described in which each machine has several turntables, over which the tone-arm can travel successively, to enable larger vocabularies to be used.
Patent GB-105651-A (GB)
IPC: F16L17/035
Abstract: 105,651. Downie, W. D., and Cockburn, J. W. May 17, 1916. Cup-leather joints. - In a joint having an annulus or sleeve 1 and cup leathers 4, 5, the sleeve is formed with a corrugation as shown. Distance pieces and stops may be provided.
Patent GB-627116-A (GB)
Title: Improvements in or relating to printing devices
IPC: B41L47/02
Filed: 1947-04-21
Abstract: 627,116. Filing papers &c. ADDRESSOGRAPH-MULTIGRAPH CORPORATION. April 21, 1947, No. 10575. Convention date, Jan. 28, 1946. [Class 146 (i)] [Also in Group XVI] A device for printing addresses, identification numbers &c. comprises a printing plate 11 disposed on one side of a supporting member 10, the printing plate being retained in position by a back plate 12 disposed on the other side of the supporting member and having projections which pass through the member to engage the plate 11, the margin between the projections and the edges of the back plate underlying the member 10. As shown, the supporting member comprises a replaceable multipage record file 10 in which apertures 14, 16, 17, 18 are provided in a front sheet 13 so that lips 19, 21, ear pieces 23 and a retaining spring-lip 25 on the back plate 12 may project through the file to secure the printing plate 11. The printing plate slides horizontally into position between the channelforming lips 19, 21 until located by earpieces 23 engaging a recess in the printing plate, and lip 25 springs upwardly behind the rear edge of the printing plate to lock it in position. The projections are spaced inwardly of the back plate so that additional support is given to the weakened perforated portion of the record file. The lips 19, 21 are so positioned on the back plate that a slight flexure of the file is required during the assembly of the two parts, so that the back plate is thereby retained on the file by the lips 19, 21 when the file is flat.
Patent GB-876164-A (GB)
Title: Improvements in or relating to air filters for autoclaves
IPC: B01D46/10
Filed: 1959-03-26
Abstract: 876,164. Air filters. VERNON & CO. Ltd., and WELLER, A.G. March 28,1960 [March 26, 1959], No. 10587/59. Class 8(2). An air filter comprises a tapered open ended chamber 1, Fig. 2, projecting from an autoclave (not shown) and into which sterilized cotton wool 3 from a prepacked sealed tube 5, Fig. 4, is pressed after removing end seals 6 and holding the tube against the outer end of the chamber 1 ; the inner end of said chamber being narrower than the outer end resulting in a close fit of the filter plug. Protective grids 2, 12 are provided adjacent opposite ends of the plug. The chamber 1 may be of transparent material thus allowing discolouration of the cotton wool to be noted.
Patent GB-296111-A (GB)
Title: Improvements in kitchen stoves operated by petroleum
IPC: F24C15/32
Filed: 1927-04-20
Abstract: 296,111. Carpineti, A. April 20, 1927. Oil cooking-stoves. - A cooking-stove or range heated by petroleum or like oil fuel comprises one or more heating chambers 1 containing cooking- vessels located above the normal floor level and heated by a burner or burners 12 associated with a combustion chamber 8 below the floor level. The stove shown comprises at each end three such heating-chambers with a common combustion chamber, the gases being caused to pass in a helical path around the cooking-vessels. At the centre of the stove is an oven 28 and hotplate 26, both of which are heated by a burner 25. The oil-supply tank 35 for all the burners is housed beneath the combustion chamber 34 of the burner 25 and is heated by a part of the waste gases from the oven flues, which passes round it on its way to the flue 30.
Patent GB-702343-A (GB)
Title: Improvements in direct current electricity generators
Inventor: MACFARLANE JAMES COLQUHOUN
IPC: H02K23/18
Filed: 1951-05-07
Abstract: 702,343. Exciting D.C. machines. MACFARLANE, J. W., MACFARLANE, W. I., and MACFARLANE, C. C. May 8, 1952 [May 7, 1951], No. 10641/51. Class 35 The stator of a D.C. welding generator has exciting windings distributed is slots to produce main poles and interpotes, the main-pole teeth being embraced by separately excited coils 5 angularly offset in the direction of armature rotation and interpole teeth having series windings 7 which also embrace some of the main-pole teeth, the brushes being rotatable in the direction of armature rotation to control the effect of armature reaction on the main pole flux and so regulate the short-circuit current of the machine. As shown in Fig. 2, the stator has four teeth per pole, N1, N2; N3 and S1, S2, S3 constituting the north and south poles respectively, while teeth C act as interpoles. Teeth N2 and S2 are on the polar axes and excited coils 5, which may be fed from an exciter on the same shaft, embrace teeth N1, N2 and S1, S2 thus producing an excitation. which is offset in the direction of armature rotation. A small shunt excited winding 8 which may be controlled by a rheostat embraces all three teeth of each pole. The series connected armature reaction compensating winding 7 comprises two sets of concentric coils 7A embracing only the interpole tooth C, and 7B spanning the main-pole teeth on either side of the interpoles. The effect of these coils is to produce a wide commutation zone to enable the brushes to be rocked over a wide range to control the machine output current, the striking voltage being controlled by regulating the separate excitation of windings 5. As shown in Fig. 3, the brushes It are carried on a circular rocker 13 manually adjusted by a bevel gear drive 14, 20. Chattering is prevented by means of a spring 21 urging the gears into engagement and the spacing of the gears is adjusted by means of an eccentric bush 23. The generator may be used as a motor to start the driving engine.
Patent GB-644221-A (GB)
Title: Improvements in and relating to fasteners
IPC: F16B7/04
Filed: 1948-04-16
Abstract: 644,221. Clips. FERNBERG, E. B., and FERNTOL PATENTS, Ltd. April 16, 1948, No. 10675. [Class 44] [Also in Group X] A fastener for securing a trim pad or the like to an apertured vehicle pillar &c. comprises a single strip of metal bent to substantially L-shape, formed with a notch 19, Fig. 4, in the stem 27 of the L, and provided with pronged feet 20 on the base 28. In use the pronged feet are bent over after being forced through the trim pad 17, Fig. 5, and the notch 19 engages the lower edge of an aperture 15 in the wall 11 of the pillar.
Patent GB-1286423-A (GB)
Title: Two circuit breaker cylinder arrangement
IPC: F16D65/14
Filed: 1971-04-22
Abstract: 1286423 Fluid pressure brakes ALFRED TEVES GmbH 22 April 1971 [30 April 1970] 10687/71 Heading F2F A two-circuit wheel brake cylinder has two cylinders concentrically disposed one within the other and connected one with another cooperating with two pistons 8, 9 to define two pressure chambers 16, 19, one pressure chamber 19 being defined by the innermost cylinder 2 and a piston 9 and the other chamber being defined by the innermost cylinder 2, the outermost cylinder 1 and the other piston 9 which has a cylindrical portion lying between those surfaces of the cylinders which are opposite one another.
Patent GB-825566-A (GB)
Title: Improvements relating to magnetrons
Inventor: PETERS PHILIP H
IPC: H01J25/56
Filed: 1957-04-02
Abstract: 825,566. Magnetrons. GENERAL ELECTRIC CO. April 2, 1957, No. 10751/57. Class 39(1). A voltage - tunable magnetron has a cylindrical array of anode segments 19, 20, a central electricallyconducting non-emissive cathode support 21, an off-set cathode 24, and a control electrode 27 surrounding the cathode which is so shaped, e.g. frustoconical, as to give the electrons a velocity component in the direction of the interaction space. The cathode 24 may be a thoriated tungsten spiral, as shown, or an indirectly heated oxide cathode. The anode segments 19, 20 may be interdigitated, as shown. The stack of metal plates 10, 11, 13, 15, 16 and intervening ceramic insulators 12, 14, 17, 18 are sealed together by immersing in a solder pot as described in Specification 813,828 [Group XXXVI]. The ends of the ceramic insulators are previously coated with titanium hydride. Specifications 703,656 and 825,565 also are referred to.
Patent GB-994767-A (GB)
Title: Methods of and plants for burning cement
Inventor: HASTRUP NIELS ERIK
IPC: F27B7/20
Filed: 1964-03-13
Abstract: <PICT:0994767/C1/1> In the rotary kiln process for producing cement, part of the dust-laden gases leaving the kiln are impinged on a deflector, thus precipitating the dust which is collected and removed from the system, the gases after deflection rejoining the main stream which is passed to a dust separator, the separated dust being returned to the kiln. The Figure shows kiln inlet 1, raw material inlets 7, cyclone preheater 4, deflector 11 and precipitated dust hopper 9.
Patent GB-472109-A (GB)
Title: Improvements relating to sheet feeding apparatus for printing and like machines
IPC: B65H3/08
Filed: 1937-04-15
Abstract: 472,109. Feeding sheets. EHRIG, H., and KEILHAUER, U. April 15, 1937, No. 10785. Addition to 455,258. [Class 100 (i)] The sheet - feeding device described in the parent Specification is modified in that the grippers of both sets are distributed over the whole width of the device. Various arrangements suitable for small, medium, and large sheets are described. For small sheets arranged in two adjacent piles, the grippers of the primary set are secured to a cantilever carrier rod attached to a lever of an actuating-means at one side of the feeder, and the secondary grippers are arranged in a similar manner but attached to a lever of an actuating-means on the opposite side of the feeder. For medium sheets arranged in two adjacent piles, the primary grippers are supported on two coaxially arranged cantilever carriers, and the secondary grippers on a centrally supported carrier. For large sheets arranged in two adjacent piles, each of the grippers of the primary set T, Fig. 2, and secondary set H has an actuating- mechanism of its own, and the sets are arranged so that a gripper of the primary set lies between a pair of grippers of the secondary set, except in the middle of the feeder where a pair of secondary grippers H<4>, H<5> are arranged side by side. The latter pair of grippers may have one common actuating-mechanism. The two sheet piles may be arranged on separate platforms which are gradually raised. A device for raising the rear portion of each sheet as it is in transit to the conveying-rollers may be provided, particularly where the sheets are to be fed in overlapping relationship. As shown in Fig. 7c, suction grippers 109 are mounted on one end of a double-armed lever 110, the lever being pivoted to a rocking-arm 12. On movement of the arm, the end 110<1> of the lever rides along a cam 11 under spring action, so that the grippers are lowered to pick up the rear end of a sheet as it passes between the rollers 34, 35. In another form, a perforated tube connected to a source of compressed air is arranged beneath the sheets. In a further form, a number of guide rods for the sheets are attached to a rocking-frame which carries the lower rollers 34. The primary grippers may be tilted about their rear edges by suctionoperated means as described in the parent Specification, or a mechanical means, as shown in Fig. 8, may be used. This comprises a cam and lever motion K, 220, rocking arm 212, and an adjustable connecting-rod 218 pivoted to a double-armed lever 21 for tilting the gripper T20.
Patent GB-434831-A (GB)
Title: Improvements in or relating to means for supporting wash-basins
IPC: A47K1/04
Filed: 1934-04-10
Abstract: 434,831. Wash-basins. WRONKOW, P., 133, East Road, Hoxton, London. April 10, 1934, No. 10791. [Class 26] [See also Group XIV] A device for supporting wash-basins comprises a strip-metal frame for removably holding a basin and consisting of a circular part 2 having extensions 6 hinged to out-turned arms 8 at the lower end of a rigid frame 5 adapted to be supported on a wall &c., the basin-holding frame with the basin in position being adapted to fold with the basin in position upwards from its normal horizontal position to a position beyond the vertical. In Fig. 1, the frame is maintained in a horizontal position by the engagement of the outer ends 7 of the extensions with the underpart of the arms 8. In Fig. 3, each extension has a slot 13 in which a hinge-pin 4 may occupy two positions, in one of which the extension engages a stop 14 on the arm 8, and in the other, the frame may be turned in an upward or downward direction. A supporting- hook 9 and preferably detachable soap and like dishes 11 may be provided, and the frame may have hook-ends to be hung on a rail and a bracket or brackets adapted to be secured to the wall &c.