baber/WOPTO huggingface dataset:
Patent GB-1175767-A (GB)
Title: Step-by-Step Lifting Device Operated by Bellows
Inventor: FINKBEINER WALTER
IPC: E02B17/08
Filed: 1968-09-20
Abstract: 1,175,767. Bellows-operated step-by-step lifting device; platform elevator. W. FINKBEINER. 20 Sept., 1968, No. 44877/68. Headings B8H and B8J. A step-by-step lifting device comprises a frame 3, bellows 1 with base-plate 2 and coverplate 4, a pair of guide rails 24 connected to the frame 3, and an upper catch 15 and a lower catch 19 alternately engaging toothed pins 18 of a pole 17. The load may be coupled to either upper or lower suspension eyelet 27. In the position shown in Fig. 2 the bellows 1 are deflated and are pressed together by tension springs 23. In order to lift a load a control lever (not shown) is used to pivot a cam 29 into the horizontal position where it lies against a pawl 30 rotatably mounted on a pin 14 secured to the upper catch 15. The pin 14 is guided in slots 25 and rotatably connected to a lever arm 10 joined to the frame 3 by a pin 13 and tie rods 11 and to a double joint 9 rotatably mounted in a lug 5 on the cover-plate 4. The upper end of the joint 9 is rotatably connected to a pair of guide joints 22 pivoted to the upper section 26 of the frame 3. When compressed air from a tube 6 is passed via a coupling 7 and valve 8 into the bellows 1 the lever 10 is swung upwards, rotating about the pin 13 causing the catch 15 to engage the pins 18. Further expansion of the bellows 1 causes the pin 13 to move upwards and so lifts the frame 3 carrying the load. The lower catch 19, loaded by a spring (not shown) rides over the pins 18. If the bellows 1 are deflated by the valve 8 the lower catch 19 holds the frame 3 by engaging the pins 18, the upper catch 15 being drawn back to its uppermost position as determined by the slots 25. Re-introduction of compressed air into the bellows 1 thus causes the cycle to repeat and the load to be lifted step-by-step. In order to lower the device the cam 29 is turned to a vertical position. This causes the lower catch 19 to support the load while the upper catch 15 is lowered when the bellows are inflated. The load is then supported on the upper catch 15 while the bellows are deflated and the lower catch 19, kept open by the pawl 30 is lowered. Four such devices may be used, one at each corner of a replaceable platform 46, Fig. 7, controlled from a switchboard 55.
Patent GB-1416789-A (GB)
Title: Method and apparatus for producing weight controlled slices from an elongated mass
IPC: B26D3/28
Filed: 1973-09-25
Abstract: 1416789 Endless belt conveyers CHEMETRON CORP 25 Sept 1973 [28 Sept 1972] 44917/73 Heading B8A [Also in Divisions A4 and G3]  In a food slicer, the weight of a predetermined number of slices 46 is kept constant by controlling the speed of a rotating cutting blade 36 in response to a measurement of said weight, the feed rate of food to the blades being substantially constant. Meat loaf or other elongate product 32 is fed by conveyer 34, having the sinuous profile shown and driven by an electric motor (70, Fig. 13A, not shown) whose speed is kept constant by tachogenerator feedback, to an orifice 42 which provides some compression, where it is sliced by blade 36 driven by motor 40. As shown in Figs. 4, 5 the conveyer 34 comprises belts 66, 68 and adjustable members 112, 122, 146 for guiding the product 32. The cut slices stack up on "paddles" 192 which are gradually lowered to keep the drop constant. For this purpose they are mounted on a carriage which is driven down against a spring by a motor (206, Fig. 13A, not shown), also regulated by a tachogenerator via an electromagnetic clutch. The slices are counted as revolutions of the cutter, detected electromagnetically, and when the number set on a digital counter is reached the paddles are rotated 120 degrees by stepping motors 186, 187 to deposit the stack on a weigher 48 which comprises a movable core transformer. From the weigher, the stack is transferred by device 230, operated by the pneumatically powered parallel link motion shown, to conveyer 50 which has a section 51 laterally displaceable in response to signals from the weigher indicative of stacks outside prescribed limits. Thus such stacks are displaced on a final conveyer 52 for rejection.
Patent GB-1211353-A (GB)
Title: Fluorooxazolines and homopolymers and copolymers thereof
IPC: D06M13/35
Filed: 1967-10-03
Abstract: 1,211,353. Fluoroxazoline derivatives. COMMERCIAL SOLVENTS CORP. 3 Oct., 1967 [12 Dec., 1966], No. 44988/67. Heading C2C. [Also in Divisions B2, C3 and D1] Novel fluoroxazoline derivatives of the Formula (I) where R is a hydroxymethyl or C 1-3  alkyl radical or a radical of the formula -CH 2 OCOR<SP>2</SP>, R<SP>2</SP> being a C 1-22  alkyl or C 1-22  fluoroalkyl radical; R<SP>1</SP> is a C 1-21  alkyl radical or a C 1-21  fluoroalkyl radical wherein not less than 75% of the hydrogen atoms have been replaced by fluorine atoms and wherein at least one terminal carbon atom bears at least two fluorine atoms; and X is one of the radicals -CH 2 -, -CF 2 -, -CHF- and R<SP>9</SP> being a hydrogen atom or an alkyl or aryl radical; provided that when R<SP>1</SP> is a fluoroalkyl group R<SP>2</SP> is not the same fluoroalkyl group and when R<SP>1</SP> is an alkyl radical at least one of the symbols R represents a radical -CH 2 -O-COR<SP>2</SP>, wherein R<SP>2</SP> is a C 1-22  fluoroalkyl radical in which not less than 75% of the hydrogen atoms have been replaced by fluorine atoms and wherein at least one terminal carbon atom bears at least two fluorine atoms, are obtained by reacting fluoroalkanoic acids of the formula with aminoalcohols of the formula R being a hydroxymethyl or C 1-3  alkyl radical, and A being a -CH 2 -, -CHF- or -CF 2 - radical and, if desired, acylating any hydroxymethyl groups present with other alkanoic or fluoroalkanoic acids, and/or, if desired reacting the products with organic carbonyl compounds of the formula R<SP>9</SP>-CHO, Compounds in which A is a  radical may be polymerized to give materials useful as oil-repellency agents (see Divisions B2, C3 and D1).
Patent GB-990683-A (GB)
Title: Magazine-type transparency slide projector
IPC: G03B23/04
Filed: 1961-12-19
Abstract: 990,683. Magazine-type slide projectors. FRANKE & HEIDECKE G.m.b.H., [trading as ROLLEIWERKE FRANKE & HEIDECKE]. Dec. 19,1961 [Dec. 22,1960], No. 45428/61. Addition to 965,558. Heading G2J. In an improvement in or modification of the magazine-type slide projector disclosed in the parent Specification in which two magazines movable in parallel guideways on opposite sides of the projector are provided for slides of different formats,a pair of pivoted masks located in the path of the projection light beam are arranged to be opened only when a slide is located in one or other of the two alternative projection positions. In the projector of the parent, two slide changing claws 17,18 are provided for slides of two different sizes, these claws being respectively slidable transversely of the optical axis on rods 19, 20 and being driven in feed and return movements by driving means (not shown) through links 28, 29, a double armed lever 27, a pinion 26, a reciprocating rack 24 and a cam 22 on a driving shaft 21. A knob 23 is provided for manual control. A pair of masks 34, 35 are now provided pivoted respectively about vertical axes 32, 33 and linked by a member 35c. The masks are urged towards their open positions by a spring 38 acting on a lever 36 fixed relative to mark 34 but are normally held closed by a pin 39 on the lever 36 engaging in a cam groove 40 rigid with a pinion 41 meshing with a further pinion 30 on the driving shaft 21. The pinion 41 rotates twice for each rotation of the pinion 30. A radially enlarged portion 42 of the groove 40 is arranged so that when the claws 17 and 18 are in their projection positions (and also in their outermost positions) the pin 39 is released for opening of the masks 34, 35. Opening of the masks, however, is prevented unless a slide is correctly positioned in one or other of the two gates by a latching device comprising sliding members 49, 50 having lugs 62,63 engageable by properly positioned slides and a spring-urged lever 45 which is coupled to the members 49, 50 by arms 47,48 and has a lug 43 normally positioned in the path of movement of the lever 36. The slides may be provided with three rounded or recessed corners and only one square one so that the lugs 62,63 can only be engaged by properly oriented slides. The masks 34,35 may be provided with notches thereby forming a central hole 72 when closed so as to reduce eyestrain caused by continual changes from light to dark on the screen. The hole 72 may also serve as a pin-hole objective for producing an image of the lamp filament on the screen for facilitating positioning of the sources. The projection lens would be removed for this. Alternatively the projection lens may be retained and the positioning effected with reference to an image produced on a frosted glass screen held in front of the projection lens (cf. Fig. 4 not shown).
Patent GB-1339652-A (GB)
Title: Method for fabricating corrosion resistand composites
IPC: C22C49/04
Filed: 1971-10-01
Abstract: 1339652 Making turbine blades UNITED AIRCRAFT CORP 1 Oct 1971 [20 Oct 1970] 45807/71 Heading B3A [Also in Division F1] A method of making filament reinforced composite articles, e.g. gas turbine blades 10 having a filament reinforced matrix of aluminium or magnesium or their alloys comprises diffusion bonding titanium or titanium alloy foil 16 to the outer surface of the matrix 14. A sheet of titanium or titanium alloy foil is first placed on a mandrel, heated to 204-316 C. and plasma sprayed on one side with the matrix material in an argon atmosphere. The foil is allowed to cool before it is removed from the mandrel and it is hot pressed to the matrix 14 in a non- oxidizing atmosphere. The diffusion bond is preferably made under conditions at which no continuous brittle intermetallic layer is formed, e.g. at 450-550 C. for one hour. The matrix 14 is reinforced with silicon carbide coated boron filaments 12; but they may alternatively be of silicon carbide or plain boron.
Patent GB-1074483-A (GB)
Title: Insulating and protective covering devices
IPC: F16L59/20
Filed: 1964-11-11
Abstract: 1,074,483. Pipe coverings; supporting pipes. M. T. PHILLIPS. Nov. 11, 1964, No. 45871/64. Headings F2G, F2P and F2X. A unitary, elongated, insulating and protective covering 10 which is closed laterally so that a pipe or other elongated objects can only be inserted in it longitudinally comprises a core 12, 13 of cellular material relatively uniform in cross-sectional shape with at least one dimensioned opening 11 extending therethrough, the said core being compressively surrounded by a thinner cladding 15 of tough, non- cellular, internally reinforced thermoset resin of load carrying strength. The core is of a vitreous, a polyester resin or an inorganic material and the reinforcement of the cladding is of glass fibre. A piping layout (Fig. 7) is assembled by first threading the seamless coverings on to the pipes, forming the pipes by welding at 33 and protecting the area around the weld with a short length of the covering (Fig. 5, not shown) which has to be slit longitudinally along one side so that it can be hinged open and shut. Special coverings 43 as in Fig. 9 are provided for the L bends 40 of the expansion loop 35. These are of normal crosssection except where flared out at X-X to a larger internal dimension of cross-section similar to that in Fig. 13 (not shown), which allows for movement of the arms 39, 39<SP>1</SP> due to expansion. The coverings 43 are split longitudinally but the coverings of the arms 39 and 39<SP>1</SP> which have the same cross-section and which form the coverings 43 at 48 are not. The joints between the various coverings are sealed by strips of glass fibre tape on to which are brushed several coats of a viscous resin dope. For manufacture, segments as at 54, 55 &c. of the foamed cellular core are temporarily held together on a mandrel by a thin sheet of paper, foil or cloth wrapped round them, a synthetic resin is then applied outside by brushing, trowelling or spraying and is reinforced by glass fibre in the form of a mat, roving or cloth. Due to action of the catalyst the applied becomes hot but subsequently cools and contracts to compress the core material inside it. Anchors supporting the piping layout may also be covered with the resin and glass fibre to protect them.
Patent GB-1530908-A (GB)
Title: Carburettors for pre-combustion chamber internal combustion engines
IPC: F02M1/00
Filed: 1975-11-05
Abstract: 1530908 Spray carburetters HONDA GIKEN KOGYO KK 5 Nov 1975 [6 Nov 1974] 45949/75 Heading F1H A carburetter passage 10 for supplying mixture to at least one main engine combustion chamber 67 and a passage 11 for supplying a richer mixture to at least one pre-combustion chamber 68 have respective choke valves 12 and 13. A lever 22 fixed to the choke shaft 21 has an abutment 25 which is urged into engagement with a lever 23 rotatable on the shaft and having a lost-motion connection 58, 59 to a lever 51 rotatable on the choke shaft 48. The lost-motion connection may be provided by a bi-metal coil (76), Fig. 3 (not shown), having a shoulder (80) engaging the lever 23 and an outer end (79) engageable with the rod 58. A lever 24 rotatable on the shaft 21 and engageable with the abutment 25 is connected to a diaphragm actuator 36 subject to the vacuum in the passage 10 downstream of the throttle valve 14 to ensure at least partial opening of the valves 12 and 13 on steady running of the engine with the throttle valve undepressed, the lever 23 being connected to a lever 52 rotatable on the shaft 48 and engageable with an abutment 53 on a lever 50 fixed to the shaft. The abutment 53 is urged into engagement with the lever 52 by the spring 54. The lever 23 is operable by the knob 34 and wire 35 from a position d in which the valve 12 is maintained open by the spring 29 to a position e in which the valve is fully closed. From position e to position f the spring 26 permits further movement of lever 23 and the rod 58 moves lever 51 to fully close the valve 13 via the spring 54. Movement to position g loads the springs 26 and 54. Abutment 40 in the actuator 36 provides predetermined openings of the valves 12 and 13 from their fully closed positions.
Patent GB-1200359-A (GB)
Title: Improvements in and relating to welding devices
IPC: B23K11/28
Filed: 1967-10-09
Abstract: 1,200,359. Welding by pressure; soldering. ROCKY MOUNTAIN DENTAL PRODUCTS CO. 9 Oct., 1967 [28 Oct., 1966], No. 46066/67. Heading B3R. A welding device, e.g. a resistance spotwelder, comprises two welding head supports 18, 52 and two welding heads 28, 72, each mounting at least one electrode 30, 74 and a snap-action device (Figs. 4-9, no shown), associated with at least one welding head for positively locating the, or an electrode of one head in a welding position relative to the or an electrode of the other head. Each welding head is mounted rotatably on its support post by a square cross-section stud (78) the faces of which co-operate with a spring-biased locating surface (92) of the snap-action device such that by rotation of the welding head and stud to any one of four positions, in each of which a particular electrode is presented for working, the welding head firmly locates in the selected position under the influence of the snap-action device. Where both welding heads are provided with a snap-action device the arrangement is such that a selected electrode on each head is brought into welding relationship with the other. Alternatively the snap-action device may comprise a spring-biased grommet (116) that engages the flat surfaces of the welding head to locate the head positively in a selected position. The welding electrodes may be resiliently mounted on the welding heads. One of the welding heads 28 is mounted on its support 18 projecting from the inclined front face 20 of the device, while the other welding head 72 is mounted on its support 52 fixed to a treadle device 32 which can be raised and lowered about a pivot 42 to raise or lower the welding head 72 relative to the head 28. The treadle can be locked by a self-releasing friction grip device (Fig. 3, not shown), in the lowered position.
Patent GB-1073708-A (GB)
Title: Pharmaceutical compositions comprising 2,2,bipyridine
IPC: C07D213/22
Filed: 1964-11-12
Abstract: Pharmaceutical compositions useful in the treatment of hyperacidity and peptic ulcer comprise 2,2\sv-bipyridine and a carrier. Altropine, or a salt thereof, may be included in the compositions. The compositions may be formulated with conventional excipients for oral or parenteral administration.
Patent GB-1480216-A (GB)
Title: Electroslag refining
IPC: B22D23/10
Filed: 1974-10-04
Abstract: 1480216 Etectroslag refining; continuous casting BRITISH STEEL CORP 4 Oct 1974 [5 Oct 1973] 46699/73 Heading B3F At least one electrode 6 (which may be of steel and consumable) projects into a molten slag bath 7 contained within the upper open section 2 of a body 1, a lower section 3 of which is of smaller cross-section than both the upper section and the electrode and functions as a mould for producing a casting 13 and is insulated electrically from the upper section 2, e.g. by an asbestos sheet 4. The sections 2, 3 of the body 1 are of copper and are water-cooled. The body 1 is initially mounted on (and preferably insulated from) a base plate 8 from which it is raised by a carriage 9. The electrode 6 and the plate 8 are connected to an A.C. or D.C. source. The electrode is raised or lowered to maintain the current value. The insulation of the sections 2 and 3 from each other is said to prevent electric current 16 penetrating the layer of solid slag 15 which freezes on the body walls and forming cracks therein which produce casting fins. The mould section 3 may have two cavities, from which two castings are simultaneously withdrawn by rollers. In another embodiment, the upper section is in the form of a cylindrical wall mounted on a separate annular plate which is electrically insulating, e.g. being made of zirconia. The mould is stationary and the casting is withdrawn downwardly by rollers and is tubular since a cooled mandrel extends down through an electrode which is hollow or through an annular array of electrodes and down through the mould.
Patent GB-953295-A (GB)
Title: Improvements in or relating to methods of constructing curved screens and screens obtained therewith
IPC: G03B21/56
Filed: 1962-12-11
Abstract: 953,295. Projection screens. J. HOURDIAUX. Dec. 11, 1962, No. 46732/62. Heading G2J. A curved projection screen comprises a frame 2 of constant curvature on which are releasably secured rigid elements 1 of L-shaped cross-section having one flange la acting as a support and a matt light diffusing face 1b acting as a screen element, the juxtaposed elements being mutually parallel and normal to the projection axis. Curved cross-members 5 carry curved strips 4 on which are cemented flexible rubber bands 6. Steel rope 7 is suspended from elastic hooks 8 carried on strips 4 and each screen element engages the rope by notches 9, the frictional contact with bands 6 maintaining the element in position. Alternatively, the elements may be carried by distance pieces 10 whose notches 11 receive flanges 1a.
Patent GB-1416217-A (GB)
Title: Electrical propulsion machinery
IPC: B63G8/08
Filed: 1973-10-09
Abstract: 1416217 Marine electrical propulsion system KOCKUMS MEKANISKA VERKSTADS AB 9 Oct 1973 [11 Oct 1972] 46994/73 Heading B7V  In a marine propulsion system comprising electrical batteries 5, 6, 7, an electric motor 3, 4 and a propeller 1, the batteries are switchable from low to high output voltage by being switched from connection in parallel to connection in series. Direct coupling 10 is engageable to provide a high gearing ratio and gearing 11, 12, 13 provides a low gearing ratio. Fig. 1 shows the system connected for low electrical power and low speed. In Fig. 2 it is connected for high electrical power and high speed.
Patent GB-1518167-A (GB)
Title: Arrangement for driving a transfer beam
IPC: G05D3/00
Filed: 1975-11-14
Abstract: 1518167 Automatic control systems REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 14 Nov 1975 [14 Nov 1974] 47116/75 Heading G3N In a control system for a reciprocating transfer beam (e.g. for moving vehicle bodies), an electromagnetic brake and clutch between a motor drive and a beam rack/pinion mechanism are controlled according to the difference between the sensed beam speed and a reference speed, as selected in response to predetermined positions of the beam from a pair of function generators, which control either beam acceleration or deceleration. As shown, an asynchronous motor 4 drives beam 1 via clutch 6, brake 7, gearing 8 and rack/pinion 2, 3. At the predetermined beam positions, as sensed by micro-switch or magnetic proximity detector 21, the output of acceleration or deceleration function generators 14, 15 is connected via relay 20a to comparator 12, where it is compared with a voltage from pinion tachometer 13, proportional to pinion speed. According to the direction of error either brake 7 or clutch 6 is energized so as to regulate the pinion speed to the reference function i.e. to bring the beam up to speed or to rest. The acceleration function is formed at 14 by integrating a fixed voltage, and the deceleration function formed by taking the square root of the pinion drive-shaft position as measured by potentiometer 19 or a count-down counter.
Patent GB-1329367-A (GB)
Title: Boring bars
IPC: B23B29/034
Filed: 1971-10-11
Abstract: 1329367 Boring bars ERICKSON TOOL CO 11 Oct 1971 [15 July 1971] 47256/71 Heading B3C An adjustable boring bar comprises a cam plunger 8 movable in a longitudinal bore 9, a pair of cutters 3 movable in a first transverse bore 15, and a nut 5 movable in a second transverse bore 6, and adapted to move plunger 8 along bore 9. Nut 5 is adjusted by rotating a screw having a dial 4, and an angular base 7 on the nut coacts with a conical end 10 on plunger 8, the latter having a tapered tongue 18 which co-operates with angled faces 16 on the cutters 3. Faces 16 are urged into engagement with tongue 18 by springs 21.